{"id":5458,"date":"2021-02-07T20:53:34","date_gmt":"2021-02-07T19:53:34","guid":{"rendered":"https:\/\/www.fipwarriors.eu\/?p=5458"},"modified":"2023-03-29T09:50:18","modified_gmt":"2023-03-29T07:50:18","slug":"ucinnost-inhibitora-3clike-proteazy-pri-liecbe-roznych-foriem-ziskanej-macacej-infekcnej-peritonitidy","status":"publish","type":"post","link":"https:\/\/www.fipwarriors.eu\/en\/ucinnost-inhibitora-3clike-proteazy-pri-liecbe-roznych-foriem-ziskanej-macacej-infekcnej-peritonitidy\/","title":{"rendered":"Efficacy of a 3C-like protease inhibitor in treating various forms of acquired feline infectious peritonitis"},"content":{"rendered":"<p class=\"lm-small has-black-color has-text-color has-background has-small-font-size wp-block-paragraph\" style=\"background-color:#eaeaea\">P&ocirc;vodn&yacute; &#269;l&aacute;nok: <a href=\"https:\/\/journals.sagepub.com\/doi\/full\/10.1177\/1098612X17729626\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">Efficacy of a 3C-like protease inhibitor in treating various forms of acquired feline infectious peritonitis<\/a><br>Publikovan&yacute;: 13.9.2017, SAGE &ndash; Journal of Feline Medicine and Surgery<\/p>\n\n\n\n<p class=\"lm-small has-black-color has-text-color has-background has-small-font-size wp-block-paragraph\" style=\"background-color:#eaeaea\"><a href=\"https:\/\/www.ncbi.nlm.nih.gov\/pubmed\/?term=Pedersen%20NC%5BAuthor%5D&amp;cauthor=true&amp;cauthor_uid=28901812\">Niels C Pedersen<\/a>,<sup>1<\/sup>&nbsp;<a href=\"https:\/\/www.ncbi.nlm.nih.gov\/pubmed\/?term=Kim%20Y%5BAuthor%5D&amp;cauthor=true&amp;cauthor_uid=28901812\">Yunjeong Kim<\/a>,<sup>2<\/sup>&nbsp;<a href=\"https:\/\/www.ncbi.nlm.nih.gov\/pubmed\/?term=Liu%20H%5BAuthor%5D&amp;cauthor=true&amp;cauthor_uid=28901812\">Hongwei Liu<\/a>,<sup>1<\/sup>&nbsp;<a href=\"https:\/\/www.ncbi.nlm.nih.gov\/pubmed\/?term=Galasiti%20Kankanamalage%20AC%5BAuthor%5D&amp;cauthor=true&amp;cauthor_uid=28901812\">Anushka C Galasiti Kankanamalage<\/a>,<sup>3<\/sup>&nbsp;<a href=\"https:\/\/www.ncbi.nlm.nih.gov\/pubmed\/?term=Eckstrand%20C%5BAuthor%5D&amp;cauthor=true&amp;cauthor_uid=28901812\">Chrissy Eckstrand<\/a>,<sup>4<\/sup>&nbsp;<a href=\"https:\/\/www.ncbi.nlm.nih.gov\/pubmed\/?term=Groutas%20WC%5BAuthor%5D&amp;cauthor=true&amp;cauthor_uid=28901812\">William C Groutas<\/a>,<sup>3<\/sup>&nbsp;<a href=\"https:\/\/www.ncbi.nlm.nih.gov\/pubmed\/?term=Bannasch%20M%5BAuthor%5D&amp;cauthor=true&amp;cauthor_uid=28901812\">Michael Bannasch<\/a>,<sup>1<\/sup>&nbsp;<a href=\"https:\/\/www.ncbi.nlm.nih.gov\/pubmed\/?term=Meadows%20JM%5BAuthor%5D&amp;cauthor=true&amp;cauthor_uid=28901812\">Juliana M Meadows<\/a>,<sup>5<\/sup>&nbsp;and&nbsp;<a href=\"https:\/\/www.ncbi.nlm.nih.gov\/pubmed\/?term=Chang%20KO%5BAuthor%5D&amp;cauthor=true&amp;cauthor_uid=28901812\">Kyeong-Ok Chang<\/a><sup>2<\/sup><\/p>\n\n\n\n<h2 class=\"lm-underscore wp-block-heading\">Abstrakt<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Cie&#318;<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Bezpe&#269;nos&#357; a &uacute;&#269;innos&#357; inhib&iacute;tora 3C-Like prote&aacute;zy GC376  bola testovan&aacute; na skupine klientmi vlastnen&yacute;ch ma&#269;iek  s r&ocirc;znymi formami infek&#269;nej peritonit&iacute;dy (<a class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"&lt;div class=glossaryItemBody&gt;Infek&#269;n&aacute; peritonit&iacute;da ma&#269;iek (angl. Feline infectious peritonitis, zau&#382;&iacute;van&aacute; skratka FIP) je infek&#269;n&eacute; ochorenie ma&#269;iek sp&ocirc;sobuj&uacute;ce smr&#357;. N&aacute;zov je mierne zav&aacute;dzaj&uacute;ci, preto&#382;e nejde o z&aacute;pal pobru&scaron;nice (&#269;i&#382;e peritonea), ale o z&aacute;pal ciev (vaskulit&iacute;da). Klinick&eacute; pr&iacute;znaky FIP sa v&scaron;ak &#269;asto prejavuj&uacute; vo forme z&aacute;palu pobru&scaron;nice. V&iacute;rus FIP nap&aacute;da v&scaron;ak aj pohrudnicu &ndash; z toho d&ocirc;vodu je niekedy choroba ozna&#269;ovan&aacute; tie&#382; ako Infek&#269;n&aacute; ma&#269;acia polyserozit&iacute;da (Feline infectious polyserositis).&lt;\/div&gt;\" href=\"https:\/\/www.fipwarriors.eu\/en\/glossary\/fip\/\" data-mobile-support=\"0\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex=\"0\" role=\"link\">FIP<\/a>).<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Met&oacute;dy<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Do klinick&eacute;ho testu bolo prijat&yacute;ch 20 ma&#269;iek vo veku od 3,3 do 82 mesiacov (priemerne 10,4 mesiaca) s r&ocirc;znymi formami FIP. &Scaron;trn&aacute;s&#357; ma&#269;iek malo vlhk&uacute; alebo zmie&scaron;an&uacute; FIP a &scaron;es&#357; ma&#269;iek malo such&uacute; FIP. GC376 sa pod&aacute;val subkut&aacute;nne ka&#382;d&yacute;ch 12 hod&iacute;n v d&aacute;vke 15 mg\/kg. Ma&#269;ky s neurologick&yacute;mi pr&iacute;znakmi boli zo &scaron;t&uacute;die vyl&uacute;&#269;en&eacute;.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">V&yacute;sledky<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Dev&auml;tn&aacute;s&#357; z 20 ma&#269;iek lie&#269;en&yacute;ch GC376 sa uzdravilo do 2 t&yacute;&#382;d&#328;ov od za&#269;iatku lie&#269;by. Pr&iacute;znaky choroby sa v&scaron;ak po 1&ndash;7 t&yacute;&#382;d&#328;och od prim&aacute;rnej lie&#269;by vr&aacute;tili, a relapsy a nov&eacute; pr&iacute;pady sa nakoniec lie&#269;ili minim&aacute;lne 12 t&yacute;&#382;d&#328;ov. Relapsy, ktor&eacute; prestali reagova&#357; na lie&#269;bu, sa vyskytli u 13 z t&yacute;chto 19 ma&#269;iek v priebehu 1-7 t&yacute;&#382;d&#328;ov od po&#269;iato&#269;nej alebo opakovanej lie&#269;by. Z&aacute;va&#382;n&eacute; neurologick&eacute; ochorenie sa vyskytlo u 8\/13 ma&#269;iek, u ktor&yacute;ch zlyhala lie&#269;ba, a u piatich ma&#269;iek sa opakovali bru&scaron;n&eacute; l&eacute;zie. V &#269;ase p&iacute;sania tohto &#269;l&aacute;nku bolo sedem ma&#269;iek v remisii choroby. P&auml;&#357; ma&#269;iatok vo veku 3,3&ndash;4,4 mesiaca s vlhkou FIP bolo lie&#269;en&yacute;ch 12 t&yacute;&#382;d&#328;ov a po ukon&#269;en&iacute; lie&#269;by a v &#269;ase p&iacute;sania &#269;l&aacute;nku boli v remisii ochorenia 5&ndash;14 mesiacov (priemerne 11,2 mesiaca). &Scaron;ieste ma&#269;iatko bolo po 12 t&yacute;&#382;d&#328;och lie&#269;by v remisii 10 t&yacute;&#382;d&#328;ov, do&scaron;lo v&scaron;ak k relapsu a dobre reaguje na druh&eacute; kolo lie&#269;by s GC376. Siedma bola 6,8-ro&#269;n&aacute; ma&#269;ka s postihnut&iacute;m mezenterick&yacute;ch <a class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"&lt;div class=glossaryItemBody&gt;&amp;lt;!-- wp:paragraph --&amp;gt;&amp;lt;strong&amp;gt;Lymfatick&eacute; uzliny&amp;lt;\/strong&amp;gt;&nbsp;alebo&nbsp;&amp;lt;strong&amp;gt;lymfatick&eacute; &#382;&#318;azy&amp;lt;\/strong&amp;gt;&nbsp;(lat.&nbsp;nodus lymphaticus) s&uacute; mal&eacute; org&aacute;ny, ktor&eacute; s&uacute; s&uacute;&#269;as&#357;ou&nbsp;miazgovej s&uacute;stavy. Tieto opuzdren&eacute; zhluky lymfoidn&yacute;ch buniek ov&aacute;lneho alebo obli&#269;kov&eacute;ho tvaru s&uacute; ve&#318;k&eacute; 1 mm - 3 cm. U &#269;loveka s&uacute; usporiadan&eacute; do re&#357;azcov. Uzliny, do ktor&yacute;ch sa zbiehaj&uacute; cievy ur&#269;itej oblasti, sa ozna&#269;uj&uacute; ako region&aacute;lne uzliny. Nach&aacute;dzaj&uacute; sa v slabin&aacute;ch, v podpazu&scaron;&iacute;, v krku, v podkolen&iacute; a v bru&scaron;nej dutine.&amp;lt;br\/&amp;gt;&amp;lt;!-- \/wp:paragraph --&amp;gt;&lt;\/div&gt;\" href=\"https:\/\/www.fipwarriors.eu\/en\/glossary\/lymfaticka-uzlina\/\" data-mobile-support=\"0\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex=\"0\" role=\"link\">lymfatick&yacute;ch uzl&iacute;n<\/a>, ktorej sa podarilo dosiahnu&#357; remisiu po troch relapsoch, ktor&eacute; si vy&#382;adovali postupne dlh&scaron;ie opakovan&eacute; lie&#269;by po&#269;as 10 mesiacov. Ved&#318;aj&scaron;ie &uacute;&#269;inky lie&#269;by zah&#341;&#328;ali p&aacute;lenie pri aplik&aacute;cii injekcie a ob&#269;asn&eacute; lo&#382;isk&aacute; subkut&aacute;nnej fibr&oacute;zy a vypad&aacute;vanie chlpov. U ma&#269;iek lie&#269;en&yacute;ch pred 16.-18. t&yacute;&#382;d&#328;om do&scaron;lo k spomalen&eacute;mu v&yacute;voju a abnorm&aacute;lnemu rastu trval&yacute;ch zubov.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Z&aacute;very a v&yacute;znam<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">GC376 sa uk&aacute;zal by&#357; s&#318;ubn&yacute; pri lie&#269;be ma&#269;iek s konkr&eacute;tnymi formami FIP a otvoril tak dvere k cielenej antiv&iacute;rusovej lie&#269;be.<\/p>\n\n\n\n<h2 class=\"lm-underscore wp-block-heading\">&Uacute;vod<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Lieky, ktor&eacute; priamo inhibuj&uacute; replik&aacute;ciu v&iacute;rusov, sa stali k&#318;&uacute;&#269;ov&yacute;mi oporami pri lie&#269;be chronick&yacute;ch v&iacute;rusov&yacute;ch infekci&iacute;, ako je HIV\/AIDS, v&iacute;rusu hepatit&iacute;dy C (HCV), v&iacute;rusu hepatit&iacute;dy B, herpesv&iacute;rusu a ak&uacute;tnych infekci&iacute;, ako je chr&iacute;pka. <a class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"&lt;div class=glossaryItemBody&gt;Ribonukleov&aacute; kyselina. Polymern&iacute; makromolekula, jej&iacute;&#382; z&aacute;kladn&iacute;mi stavebn&iacute;mi jednotkami jsou ribonukleotidy. Je sou&#269;&aacute;st&iacute; v&scaron;ech bun&#283;k a slou&#382;&iacute; k p&#345;enosu informac&iacute; z DNA d&aacute;le do bu&#328;ky. Existuje mnoho druh&#367; RNA s r&#367;zn&yacute;mi funkcemi. Mezi nejzn&aacute;mn&#283;j&scaron;&iacute; pat&#345;&iacute; mRNA (medi&aacute;torov&aacute;), tRNA (transferov&aacute;) a rRNA (ribozom&aacute;ln&iacute;).&lt;\/div&gt;\" href=\"https:\/\/www.fipwarriors.eu\/en\/glossary\/rna\/\" data-mobile-support=\"0\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex=\"0\" role=\"link\">RNA<\/a> v&iacute;rusy, ako s&uacute; HIV-1 a HCV, obsahuj&uacute; ide&aacute;lne ciele pre inhib&iacute;ciu v&iacute;rusov, ako s&uacute; RNA-z&aacute;visl&aacute; RNA polymer&aacute;za a prote&aacute;za. Prote&aacute;zy s&uacute; obzvl&aacute;&scaron;&#357; dobr&yacute;m cie&#318;om, preto&#382;e sa podie&#318;aj&uacute; na dozrievan&iacute; v&iacute;rusov (HIV) alebo na produkcii funk&#269;n&yacute;ch v&iacute;rusov&yacute;ch prote&iacute;nov (HCV). Inhib&iacute;tory prote&aacute;zy sa tie&#382; pou&#382;&iacute;vaj&uacute; v kombin&aacute;cii s inhib&iacute;tormi reverznej transkripcie pri celo&#382;ivotnej lie&#269;be HIV\/AIDS. Kombin&aacute;cie r&ocirc;znych inhib&iacute;torov prote&aacute;zy s&uacute; vysoko &uacute;&#269;inn&eacute; pri lie&#269;be infekcie HCV u &#318;ud&iacute;. Preto nie je prekvapuj&uacute;ce, &#382;e v&iacute;rusov&aacute; prote&aacute;za by mala by&#357; atrakt&iacute;vny cie&#318; aj pre v&yacute;skum infekci&iacute; zvierat sp&ocirc;soben&yacute;ch RNA v&iacute;rusom. Kim a kol. syntetizovali peptidylov&eacute; zl&uacute;&#269;eniny, ktor&eacute; s&uacute; zameran&eacute; na 3C-like (3CLpro) prote&aacute;zy, a hodnotila ich &uacute;&#269;innos&#357; proti ma&#269;aciemu koronav&iacute;rusu (FCoV) a ma&#269;aciemu kaliciv&iacute;rusu, ako aj proti d&ocirc;le&#382;it&yacute;m &#318;udsk&yacute;m RNA v&iacute;rusom, ktor&eacute; k&oacute;duj&uacute; 3CLpro alebo pr&iacute;buzn&uacute; 3C prote&aacute;zu. Identifikovali s&eacute;riu zl&uacute;&#269;en&iacute;n, ktor&eacute; vykazovali siln&uacute; inhibi&#269;n&uacute; aktivitu proti r&ocirc;znym koronav&iacute;rusom, vr&aacute;tane FCoV, s vysok&yacute;m rozsahom bezpe&#269;nosti. &Uacute;&#269;innos&#357; ich inhib&iacute;torov 3CLpro bola predmetom pokusov u my&scaron;&iacute; infikovan&yacute;ch v&iacute;rusom hepatit&iacute;dy A59, my&scaron;ac&iacute;m koronav&iacute;rusom, a zistilo sa, &#382;e sp&ocirc;sobuj&uacute; v&yacute;znamn&eacute; zn&iacute;&#382;enie titrov v&iacute;rusov a patologick&yacute;ch l&eacute;zi&iacute;.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">V s&uacute;&#269;asnosti neexistuj&uacute; komer&#269;ne dostupn&eacute; antiv&iacute;rusov&eacute; lieky na koronav&iacute;rusov&eacute; infekcie u &#318;ud&iacute; alebo zvierat a &scaron;t&uacute;die Kim a kol. dok&aacute;zali, &#382;e inhib&iacute;cia 3CLpro m&ocirc;&#382;e vies&#357; k potla&#269;eniu replik&aacute;cie koronav&iacute;rusu <a class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"&lt;div class=glossaryItemBody&gt;in vivo - lat. &amp;quot;V &#382;ivom&amp;quot;, v &#382;ivom organizme, &#318;udskom alebo zvieracom. M&ocirc;&#382;e sa t&yacute;ka&#357; ako pokuse aj skuto&#269;n&eacute;ho priebehu ur&#269;it&eacute;ho deja alebo choroby. Porov. in vitro lat. in v; Vivus &#382;iv&yacute;&lt;\/div&gt;\" href=\"https:\/\/www.fipwarriors.eu\/en\/glossary\/in-vivo\/\" data-mobile-support=\"0\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex=\"0\" role=\"link\">in vivo<\/a>. Uk&aacute;zali, &#382;e niektor&eacute; z ich inhib&iacute;torov 3CLpro s&uacute; vhodn&eacute; ako terapeutick&eacute; prostriedky proti t&yacute;mto d&ocirc;le&#382;it&yacute;m v&iacute;rusom u dom&aacute;cich a divok&yacute;ch ma&#269;iek. Potvrdila to &scaron;t&uacute;dia s vyu&#382;it&iacute;m experiment&aacute;lnej infekcie v&iacute;rusom ma&#269;acej infek&#269;nej peritonit&iacute;dy u laborat&oacute;rnych ma&#269;iek. Aj ke&#271; je experiment&aacute;lna infekcia FIPV vysoko smrte&#318;n&aacute;, akon&aacute;hle infekcia dosiahla definovate&#318;n&eacute; &scaron;t&aacute;dium, 14&ndash;20 dn&iacute; trvaj&uacute;ca lie&#269;ba pomocou GC376 viedla k r&yacute;chlej remisii ochorenia u &scaron;iestich ma&#269;iek, ktor&aacute; v &#269;ase publik&aacute;cie &#269;l&aacute;nku trvala u&#382; viac ako 12 mesiacov.<\/p>\n\n\n\n<h2 class=\"lm-underscore wp-block-heading\">Materi&aacute;ly a met&oacute;dy<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Ofici&aacute;lne protokoly<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">T&aacute;to &scaron;t&uacute;dia prebiehala pod&#318;a protokolu 18731 schv&aacute;len&eacute;ho In&scaron;titucion&aacute;lnym v&yacute;borom pre starostlivos&#357; a pou&#382;itie zvierat a V&yacute;borom pre hodnotenie klinick&yacute;ch sk&uacute;&scaron;ok Komisie pre klinick&eacute; sk&uacute;&scaron;ky veterin&aacute;rnej lek&aacute;rskej fakultnej nemocnice na Kalifornskej univerzite v Davise. Tento protokol podrobne popisuje podmienky testovania nov&eacute;ho inhib&iacute;tora prote&aacute;zy GC376 u ma&#269;iek vlastnen&yacute;ch klientom. Ka&#382;d&yacute; vlastn&iacute;k bol povinn&yacute; pre&#269;&iacute;ta&#357; si podmienky &scaron;t&uacute;die a vyjadri&#357; s nimi s&uacute;hlas.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Organiz&aacute;cia klinickej &scaron;t&uacute;die<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Predmetom &scaron;t&uacute;die bolo vyhodnotenie inhib&iacute;tora 3CLpro GC376 u skupiny ma&#269;iek s prirodzene z&iacute;skanou FIP. &Scaron;t&uacute;dia nezah&#341;&#328;ala skupinu s placebom, preto&#382;e, ako poznamenali Miller a Brody, &bdquo;hlavnou etickou z&aacute;sadou v placebom kontrolovan&yacute;ch klinick&yacute;ch sk&uacute;&scaron;kach je, &#382;e pokia&#318; pre dan&yacute; stav existuje preuk&aacute;zan&aacute; &uacute;&#269;inn&aacute; lie&#269;ba, je testovanie proti placebu neetick&eacute;&ldquo;. GC376 sa u&#382; preuk&aacute;zal ako vysoko &uacute;&#269;inn&yacute; pri lie&#269;be ma&#269;iek s experiment&aacute;lne indukovanou FIP pred touto &scaron;t&uacute;diou, &#269;&iacute;m vznikol predpoklad existuj&uacute;cej &uacute;&#269;innej lie&#269;by. Placebo kontrolu nahradila skupina s prirodzene prebiehajucou chorobou. &#381;iadna z 20 lie&#269;en&yacute;ch ma&#269;iek nepreuk&aacute;zala pretrv&aacute;vaj&uacute;ce priazniv&eacute; reakcie na lie&#269;bu, ktor&uacute; dostali pred lie&#269;bou GC376.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">In&scaron;titucion&aacute;lne pravidl&aacute; vyl&uacute;&#269;ili pou&#382;itie ma&#269;iek z&iacute;skan&yacute;ch z &uacute;tulkov alebo podobn&yacute;ch zariaden&iacute; na v&yacute;skum tohto typu, a vy&#382;adovali, aby v&scaron;etky ma&#269;ky boli v leg&aacute;lnom vlastn&iacute;ctve\/adoptovan&eacute;, a aby sa s nimi zaobch&aacute;dzalo s v&yacute;slovn&yacute;m s&uacute;hlasom majite&#318;a. Ma&#269;ky s klinicky zjavn&yacute;m neurologick&yacute;m ochoren&iacute;m boli vyl&uacute;&#269;en&eacute;. Do &scaron;t&uacute;die bolo nakoniec zahrnut&yacute;ch 20 ma&#269;iek z r&ocirc;znych oblast&iacute; USA, r&ocirc;zneho veku a s r&ocirc;znymi formami FIP. T&aacute;to relat&iacute;vne mal&aacute; skupina ma&#269;iek poskytla cenn&eacute; poznatky o koncepcii pokusu, interakcii a s&uacute;lade s vlastn&iacute;kom, sledovan&iacute; bezpe&#269;nosti a &uacute;&#269;innosti, stanoven&iacute; minim&aacute;lneho d&aacute;vkovacieho re&#382;imu, hodnoten&iacute; relapsov choroby po&#269;as lie&#269;by alebo po nej a stanoven&iacute; klinick&yacute;ch foriem FIP, ktor&eacute; s&uacute; pre lie&#269;bu najvhodnej&scaron;ie. Tieto inform&aacute;cie, d&uacute;fajme, pom&ocirc;&#382;u pri &#271;al&scaron;&iacute;ch testoch potrebn&yacute;ch na ude&#318;ovanie licenci&iacute; a pr&iacute;padn&uacute; komercializ&aacute;ciu GC376 a na vykon&aacute;vanie podobn&yacute;ch testov bud&uacute;cich antiv&iacute;rusov&yacute;ch liekov na FIPV a in&yacute;ch chronick&yacute;ch v&iacute;rusov&yacute;ch infekci&iacute; ma&#269;iek.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Popis testovacej skupiny<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Do pokusu bolo zapojen&yacute;ch 20 ma&#269;iek a ich majite&#318;ov a pr&iacute;slu&scaron;n&eacute; inform&aacute;cie o ka&#382;dej ma&#269;ke s&uacute; uveden&eacute; v tabu&#318;ke 1 a o celej pokusnej skupine na obr&aacute;zku 1. Ma&#269;ky boli do &scaron;t&uacute;die zaraden&eacute; s r&ocirc;znym stup&#328;om predbe&#382;n&eacute;ho testovania zo strany veterin&aacute;rnych lek&aacute;rov prim&aacute;rnej starostlivosti. Toto testovanie zvy&#269;ajne zah&#341;&#328;alo kompletn&yacute; krvn&yacute; obraz (CBC) s celkov&yacute;m plazmatick&yacute;m prote&iacute;nom, globul&iacute;nom (G), album&iacute;nom (A), A:G; chemick&yacute; profil <a class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"&lt;div class=glossaryItemBody&gt;&amp;lt;!-- wp:paragraph --&amp;gt;Krvn&eacute; s&eacute;rum je &#382;ltkast&aacute;, tekut&aacute; a nebunkov&aacute; zlo&#382;ka krvi, ktor&aacute; vznik&aacute; po vyzr&aacute;&#382;an&iacute; krvi a n&aacute;slednom odstr&aacute;nen&iacute; krvn&eacute;ho kol&aacute;&#269;a mechanicky a pomocou centrif&uacute;gy. Zlo&#382;en&iacute;m zodpoved&aacute; krvnej plazme, av&scaron;ak na rozdiel od plazmy neobsahuje fibrinog&eacute;n a &#271;al&scaron;ie zr&aacute;&#382;acie faktory krvi.&amp;lt;br\/&amp;gt;&amp;lt;!-- \/wp:paragraph --&amp;gt;&amp;lt;!-- wp:paragraph --&amp;gt;Krv, ktor&aacute; sa odober&aacute; na pr&iacute;pravu s&eacute;ra, sa odober&aacute; do oby&#269;ajn&yacute;ch sk&uacute;maviek alebo strieka&#269;iek bez pridania ak&yacute;chko&#318;vek antikoagulantov (napr. hepar&iacute;n, EDTA). V klinickej a laborat&oacute;rnej praxi sa &#269;asto pou&#382;&iacute;va ozna&#269;enie s&eacute;rum.&amp;lt;br\/&amp;gt;&amp;lt;!-- \/wp:paragraph --&amp;gt;&lt;\/div&gt;\" href=\"https:\/\/www.fipwarriors.eu\/en\/glossary\/krvne-serum\/\" data-mobile-support=\"0\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex=\"0\" role=\"link\">s&eacute;ra<\/a> a anal&yacute;zu v&yacute;potkov vr&aacute;tane celkov&eacute;ho prote&iacute;nu, skuto&#269;n&eacute;ho alebo odhadovan&eacute;ho po&#269;tu buniek a typu z&aacute;palov&yacute;ch buniek. U mal&eacute;ho podielu ma&#269;iek sa uskuto&#269;nilo &#271;al&scaron;ie testovanie, ktor&eacute; obsahovalo titre protil&aacute;tok FIPV, ultrazvuk bru&scaron;nej alebo hrudnej oblasti, biopsie postihnut&eacute;ho tkaniva a kvantitat&iacute;vnu PCR v re&aacute;lnom &#269;ase (qRT-PCR) z v&yacute;potkov.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><em><strong>Tabu&#318;ka 1<\/strong><br>Z&aacute;kladn&eacute; &uacute;daje, p&ocirc;vod, hlavn&eacute; klinick&eacute; pr&iacute;znaky a hlavn&eacute; zistenia pri pitve po lie&#269;be <a class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"&lt;div class=glossaryItemBody&gt;L&aacute;tka v&yacute;razne spoma&#318;uj&uacute;ca alebo zastavuj&uacute;ca reakciu.&lt;\/div&gt;\" href=\"https:\/\/www.fipwarriors.eu\/en\/glossary\/inhibitor\/\" data-mobile-support=\"0\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex=\"0\" role=\"link\">inhib&iacute;torom<\/a> prote&aacute;zy GC376<\/em><\/p>\n\n\n\n<figure class=\"wp-block-table is-style-stripes lm-small\"><table><thead><tr><th>ID\/Meno<\/th><th>Vek (mes.)<\/th><th>Hmotnos&#357;<br>(kg)<\/th><th>Pohlavie<\/th><th>Plemeno<\/th><th>P&ocirc;vod<\/th><th>Sympt&oacute;my<\/th><th>Stav<\/th><th>Pitva<\/th><\/tr><\/thead><tbody><tr><td>CT01 (Echo)<\/td><td>5.6<\/td><td>1.64<\/td><td>FS<\/td><td>DSH<\/td><td>KR<\/td><td>Peritonit&iacute;da, zakrpaten&aacute;<\/td><td>&ndash;<\/td><td>B, Int<\/td><\/tr><tr><td>CT02 (Cate)<\/td><td>6<\/td><td>2.67<\/td><td>FS<\/td><td>DLH<\/td><td>KR<\/td><td>Peritonit&iacute;da, zakrpaten&aacute;<\/td><td>&ndash;<\/td><td>B, E, Int, L, MLN<\/td><\/tr><tr><td>CT03 (Pancake)<\/td><td>7.86<\/td><td>3.18<\/td><td>MC<\/td><td>Him<\/td><td>CT<\/td><td>Such&aacute; (Col) a&#382; vlhk&aacute;<\/td><td>+<\/td><td>Int, L, MLN, S, Om, P<\/td><\/tr><tr><td>CT04 (Kratos)<\/td><td>82<\/td><td>4.8<\/td><td>MC<\/td><td>DSH<\/td><td>KR<\/td><td>Such&aacute; (MLN)<\/td><td><\/td><td><a class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"&lt;div class=glossaryItemBody&gt;&amp;lt;b&amp;gt;Remisia&amp;lt;\/b&amp;gt;&nbsp;je stav, ktor&yacute;m sa ozna&#269;uje zmiernenie a&#382; vymiznutie&nbsp;pr&iacute;znakov&nbsp;choroby. Opakom tohto stavu je&nbsp;relaps.&lt;\/div&gt;\" href=\"https:\/\/www.fipwarriors.eu\/en\/glossary\/remisia\/\" data-mobile-support=\"0\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex=\"0\" role=\"link\">Remisia<\/a><\/td><\/tr><tr><td>CT05 (Scooter)<\/td><td>10<\/td><td>4.25<\/td><td>MC<\/td><td>DSH<\/td><td>KR<\/td><td>Such&aacute; (E, MLN, K)<\/td><td>&ndash;<\/td><td>B, E, L, K, MLN<\/td><\/tr><tr><td>CT07 (Mac)<\/td><td>6.6<\/td><td>2.6<\/td><td>MC<\/td><td>DSH<\/td><td>KR<\/td><td>Such&aacute; (Col)<\/td><td>+<\/td><td>E, Int, L, MLN, S, K, A, Lu<\/td><\/tr><tr><td>CT08 (Phoebe)<\/td><td>4.2<\/td><td>2.18<\/td><td>FS<\/td><td>DSH<\/td><td>KR<\/td><td>Such&aacute; (E)<\/td><td>&ndash;<\/td><td>B, E, K, MLN, S<\/td><\/tr><tr><td>CT09 (Sammy)<\/td><td>10.5<\/td><td>2.89<\/td><td>MC<\/td><td>DSH<\/td><td>KR<\/td><td>Such&aacute; (MLN, K)<\/td><td>?<sup>*<\/sup><\/td><td>B<sup>*<\/sup><\/td><\/tr><tr><td>CT10 (Bandit)<\/td><td>17.9<\/td><td>4.06<\/td><td>MC<\/td><td>Him<\/td><td>CT<\/td><td>Such&aacute; (Col) a&#382; vlhk&aacute;<\/td><td>+<\/td><td>B, E, Int, L, MLN, K, Om, P, Lu<\/td><\/tr><tr><td>CT12 (Daisy)<\/td><td>7.5<\/td><td>2.5<\/td><td>FS<\/td><td>DSH<\/td><td>KR<\/td><td>Peritonit&iacute;da, zakrpaten&aacute;<\/td><td>&ndash;<\/td><td>B, Int, L, S<\/td><\/tr><tr><td>CT13 (Leo)<\/td><td>7.4<\/td><td>1.97<\/td><td>MC<\/td><td>Sphynx<\/td><td>CT<\/td><td>Such&aacute; (E, K)<\/td><td>+<\/td><td>B, E, Int, L, MLN, S, K<\/td><\/tr><tr><td>CT14 (Muffin)<\/td><td>8<\/td><td>2.94<\/td><td>FS<\/td><td>DSH<\/td><td>KR<\/td><td>Such&aacute; (Col) a&#382; vlhk&aacute;<\/td><td>+<\/td><td>E, Int, L, MLN, K, Om, P<\/td><\/tr><tr><td>CT15 (Flora)<\/td><td>4.3<\/td><td>2.39<\/td><td>F<\/td><td>DSH<\/td><td>FC<\/td><td>Peritonit&iacute;da<\/td><td><\/td><td>Remisia<\/td><\/tr><tr><td>CT16 (Bean)<\/td><td>4<\/td><td>1.4<\/td><td>FS<\/td><td>DSH<\/td><td>KR<\/td><td>Peritonit&iacute;da, zakrpaten&aacute;<\/td><td>+<\/td><td>B,<sup>&dagger;<\/sup>&nbsp;E, Int, L, MLN, S, Om, P<\/td><\/tr><tr><td>CT17 (Peanut)<\/td><td>4.4<\/td><td>2.3<\/td><td>M<\/td><td>DSH<\/td><td>KR<\/td><td>Peritonit&iacute;da<\/td><td><\/td><td>Remisia<\/td><\/tr><tr><td>CT18 (Smokey)<\/td><td>4<\/td><td>1.84<\/td><td>MC<\/td><td>DSH<\/td><td>KR<\/td><td>Peritonit&iacute;da<\/td><td><\/td><td>Remisia<\/td><\/tr><tr><td>CT20 (Cloud)<\/td><td>3.3<\/td><td>1.55<\/td><td>M<\/td><td>RM<\/td><td>CT<\/td><td>Pleurit&iacute;da (MLN)<\/td><td><\/td><td>Remisia<\/td><\/tr><tr><td>CT21 (Phoebe)<\/td><td>4.8<\/td><td>1.92<\/td><td>F<\/td><td>DSH<\/td><td>KR<\/td><td>Peritonit&iacute;da<\/td><td><\/td><td>Remisia\/<a class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"&lt;div class=glossaryItemBody&gt;&amp;lt;b&amp;gt;Relaps&amp;lt;\/b&amp;gt;&nbsp;je stav, ktor&yacute;m sa ozna&#269;uje objavenie sa alebo zhor&scaron;enie&nbsp;pr&iacute;znakov&nbsp;choroby. Opakom tohto stavu je&nbsp;remisia.&lt;\/div&gt;\" href=\"https:\/\/www.fipwarriors.eu\/en\/glossary\/relaps\/\" data-mobile-support=\"0\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex=\"0\" role=\"link\">relaps<\/a>\/opakovan&aacute; lie&#269;ba<\/td><\/tr><tr><td>CT22 (Pepper)<\/td><td>3.3<\/td><td>1.6<\/td><td>F<\/td><td>Sib&iacute;rska<\/td><td>CT<\/td><td>Peritonit&iacute;da<\/td><td>+<\/td><td>B, E, Om, MLN, Lu, Dia<\/td><\/tr><tr><td>CT23 (Oakely)<\/td><td>3.9<\/td><td>3.1<\/td><td>FS<\/td><td>DSH<\/td><td>KR<\/td><td>Peritonit&iacute;da<\/td><td><\/td><td>Remisia<\/td><\/tr><tr><td><span style=\"color: #cf2e2e;\" class=\"ugb-highlight\">Priemer<\/span><\/td><td><span style=\"color: #cf2e2e;\" class=\"ugb-highlight\">10.28<\/span><\/td><td><span style=\"color: #cf2e2e;\" class=\"ugb-highlight\">2.59<\/span><\/td><td><\/td><td><\/td><td><\/td><td><\/td><td><\/td><td><\/td><\/tr><tr><td><span style=\"color: #0693e3;\" class=\"ugb-highlight\">SD<\/span><\/td><td><span style=\"color: #0693e3;\" class=\"ugb-highlight\">17.22<\/span><\/td><td><span style=\"color: #0693e3;\" class=\"ugb-highlight\">0.94<\/span><\/td><td><\/td><td><\/td><td><\/td><td><\/td><td><\/td><td><\/td><\/tr><\/tbody><\/table><figcaption>FS = samica kastrovan&aacute;; F = samica nekastrovan&aacute;; DSH = dom&aacute;ca kr&aacute;tkosrst&aacute;; KR = z&aacute;chranen&eacute; ma&#269;iatko; B = mozog; Int = &#269;revo; DLH = dom&aacute;ca dlhosrst&aacute;; E = oko; L = pe&#269;e&#328;; MLN = mezenterick&eacute; lymfatick&eacute; uzliny; Him = himal&aacute;jsky; Col = hrub&eacute; &#269;revo; S = slezina; Om = omentum; P = pobru&scaron;nica; MC = kastrovan&yacute; samec; M = nekastrovan&yacute; samec; K = obli&#269;ka; A = nadobli&#269;ka; Lu = p&#318;&uacute;ca; FC = ma&#269;acia kol&oacute;nia; RM = ragmuffin; Dia = br&aacute;nica;SD = &Scaron;tandardn&aacute; odch&yacute;lka; CT = Chovn&aacute; stanica<br><br>*Neuskuto&#269;nila sa &#382;iadna pitva, ale boli pr&iacute;tomn&eacute; termin&aacute;lne neurologick&eacute; pr&iacute;znaky<br>&dagger; &#356;a&#382;k&yacute; mozgov&yacute; ed&eacute;m, neboli zaznamenan&eacute; &#382;iadne typick&eacute; z&aacute;palov&eacute; l&eacute;zie<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><a href=\"https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2021\/02\/gc376fig1-compressed.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"685\" height=\"438\" src=\"https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2021\/02\/gc376fig1-compressed.jpg\" alt=\"\" class=\"wp-image-5503\" srcset=\"https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2021\/02\/gc376fig1-compressed.jpg 685w, https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2021\/02\/gc376fig1-compressed-300x192.jpg 300w, https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2021\/02\/gc376fig1-compressed-16x10.jpg 16w, https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2021\/02\/gc376fig1-compressed-350x224.jpg 350w, https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2021\/02\/gc376fig1-compressed-64x41.jpg 64w\" sizes=\"auto, (max-width: 685px) 100vw, 685px\"\/><\/a><figcaption>Obr&aacute;zok 1.<br>Demografick&eacute; &uacute;daje o ma&#269;k&aacute;ch zaraden&yacute;ch do &scaron;t&uacute;die. (a&ndash;c) Kol&aacute;&#269;ov&eacute; grafy sumarizuj&uacute;ce percento pacientov: (a) vek v mesiacoch, (b) plemeno alebo (c) p&ocirc;vod. (d) St&#314;pcov&yacute; graf zobrazuj&uacute;ci formy ma&#269;acej infek&#269;nej peritonit&iacute;dy (FIP) zaraden&yacute;ch pacientov.<br>M = mesiace; DSH = dom&aacute;ca kr&aacute;tkosrst&aacute;; DLH = dom&aacute;ca dlhosrst&aacute;; MD = Maryland; OH = Ohio; Tx = Texas; FL = Florida; IL = Illinois; CT = Connecticut; CA = Kalifornia<\/figcaption><\/figure><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Ma&#269;ky s klinick&yacute;mi pr&iacute;znakmi sved&#269;iacimi o neurologickom postihnut&iacute; boli zo &scaron;t&uacute;die vyl&uacute;&#269;en&eacute; na z&aacute;klade skor&scaron;&iacute;ch nepublikovan&yacute;ch experiment&aacute;lnych &scaron;t&uacute;di&iacute; s GC376. Jedna ma&#269;ka, ktor&aacute; dlhodobo pre&#382;ila predch&aacute;dzaj&uacute;cu &scaron;t&uacute;diu farmakokinetiky a &uacute;&#269;innosti GC376, mala recid&iacute;vu FIP prejavuj&uacute;cu sa neurologick&yacute;mi pr&iacute;znakmi 6 mesiacov po tom, &#269;o sa javila ako &uacute;spe&scaron;n&aacute; lie&#269;ba ak&uacute;tnej infekcie.6 T&aacute;to ma&#269;ka nereagovala na opakovan&uacute; proced&uacute;ru s GC376, ktor&aacute; podnietila &scaron;t&uacute;diu schopnosti lieku prenikn&uacute;&#357; do mozgu. &Uacute;rovne GC376 v mozgu laborat&oacute;rnych ma&#269;iek predstavovali iba 3% plazmatick&yacute;ch koncentr&aacute;ci&iacute; lie&#269;iva.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Potvrdenie ochorenia<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Diagn&oacute;za FIP bola potvrden&aacute; v &#269;ase vstupu do &scaron;t&uacute;die na z&aacute;klade z&aacute;kladn&yacute;ch &uacute;dajov, klinickej anamn&eacute;zy, vy&scaron;etrenia v&yacute;sledkov predch&aacute;dzaj&uacute;cich laborat&oacute;rnych testov, fyzik&aacute;lneho vy&scaron;etrenia a opakovania z&aacute;kladn&yacute;ch anal&yacute;z krvi a v&yacute;potku. Ru&#269;n&aacute; palp&aacute;cia brucha bola zvy&#269;ajne dostato&#269;n&aacute; na identifik&aacute;ciu ascitu, zv&auml;&#269;&scaron;en&yacute;ch mezenterick&yacute;ch lymfatick&yacute;ch uzl&iacute;n, zv&auml;&#269;&scaron;enia slep&eacute;ho &#269;reva a s nimi spojen&yacute;ch ileo-cek&aacute;lno-kolick&yacute;ch lymfatick&yacute;ch uzl&iacute;n, tumorov v obli&#269;k&aacute;ch a infiltr&aacute;cie hrub&eacute;ho &#269;reva. Ru&#269;n&aacute; palp&aacute;cia sa v pr&iacute;pade potreby doplnila ultrazvukom. O&#269;i sa spo&#269;iatku vy&scaron;etrovali priamym svetlom na ak&eacute;ko&#318;vek abnormality v sietnici, na zrazeniny v prednej komore alebo na zadnej strane rohovky a z&aacute;blesky v komorovej vode. Pr&iacute;tomnos&#357; o&#269;n&eacute;ho ochorenia sa potvrdila &uacute;pln&yacute;m oftalmoskopick&yacute;m vy&scaron;etren&iacute;m vykonan&yacute;m oftalmologickou slu&#382;bou Veterin&aacute;rnej lek&aacute;rskej fakultnej nemocnice (VMTH), UC Davis. Pr&iacute;tomnos&#357; FIPV sa &#271;alej potvrdila pomocou qRT-PCR, bu&#271; z bru&scaron;n&yacute;ch alebo hrudn&yacute;ch v&yacute;potkov odobrat&yacute;ch v &#269;ase prijatia, alebo v &#269;ase pitvy. Sekvenovanie g&eacute;nu FIPV prote&aacute;zy sa uskuto&#269;&#328;ovalo na ma&#269;k&aacute;ch, u ktor&yacute;ch do&scaron;lo k relapsu po&#269;as lie&#269;by, aby sa ur&#269;ilo, &#269;i do&scaron;lo k potenci&aacute;lnej mut&aacute;cii sp&ocirc;sobuj&uacute;cej rezistenciu na lie&#269;ivo.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Diagn&oacute;za FIP sucho-vlhkej (zmie&scaron;anej) FIP u troch ma&#269;iek (CT03, CT10 a CT14) bola zalo&#382;en&aacute; na dif&uacute;znom zv&auml;&#269;&scaron;en&iacute; hrub&eacute;ho &#269;reva a anamn&eacute;ze riedkej stolice, krvi a hlienu v stolici, nap&iacute;nania na defek&aacute;ciu a stolice mal&eacute;ho kalibru pred v&yacute;skytom bru&scaron;n&yacute;ch ef&uacute;zi&iacute;. FIP hrub&eacute;ho &#269;reva bola op&iacute;san&aacute; ako &scaron;pecifick&aacute; variantn&aacute; forma neefuz&iacute;vnej FIP. Podozrenie na zmie&scaron;an&uacute; FIP bolo aj u ma&#269;iek CT01, CT02 a CT12 z d&ocirc;vodu zastavenia rastu, ktor&yacute; o mnoho t&yacute;&#382;d&#328;ov predch&aacute;dzal v&yacute;skyt bru&scaron;n&yacute;ch v&yacute;potkov.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Lie&#269;ebn&yacute; re&#382;im<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">GC376 bol syntetizovan&yacute; vo vysoko &#269;istej forme a pripraven&yacute; v koncentr&aacute;cii 53 mg\/ml v 10% etanole a 90% polyetyl&eacute;nglykole 400, ako bolo op&iacute;san&eacute; vy&scaron;&scaron;ie. GC376 bol pod&aacute;van&yacute; subkut&aacute;nne (SC) v d&aacute;vke 15 mg\/kg ka&#382;d&yacute;ch 12 hod&iacute;n SC, pokia&#318; nie je uveden&eacute; inak. &Uacute;&#269;inn&aacute; d&aacute;vka pre ma&#269;ky s experiment&aacute;lne indukovanou FIP bola 10 mg\/kg \/ q12 h SC, ale d&aacute;vka sa zv&yacute;&scaron;ila na 15 mg\/kg potom, &#269;o prv&aacute; ma&#269;ka (CT01) nereagovala na ni&#382;&scaron;iu d&aacute;vku 10 mg\/kg stanoven&uacute; predch&aacute;dzaj&uacute;cimi farmakokinetick&yacute;mi &scaron;t&uacute;diami. I&scaron;lo o klinick&eacute; rozhodnutie zalo&#382;en&eacute; na reakcii tejto jednej ma&#269;ky na lie&#269;bu.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Monitorovanie odpovede na lie&#269;bu<\/strong><br>Ma&#269;ky s FIP boli na z&aacute;klade predbe&#382;n&eacute;ho testovania a po&#269;iato&#269;n&eacute;ho vyhodnotenia v &#269;ase prezent&aacute;cie na UC Davis hospitalizovan&eacute; najmenej 5 dn&iacute; a okam&#382;ite za&#269;ali lie&#269;bu. Najmenej dvakr&aacute;t denne boli podrobne vy&scaron;etren&eacute; na rekt&aacute;lnu teplotu, pulz, d&yacute;chanie, chu&#357; do jedla a aktivitu. Pou&#382;ila sa hrudkuj&uacute;ca podstielka, ktor&aacute; umo&#382;&#328;ovala denn&eacute; hodnotenie objemu a konzistencie stolice a mo&#269;enia. Cel&aacute; krv sa odoberala do EDTA alebo hepar&iacute;nu venepunkciou pred zah&aacute;jen&iacute;m lie&#269;by, v dvojd&#328;ov&yacute;ch intervaloch po&#269;as hospitaliz&aacute;cie, v &#269;ase prepustenia a v dvojt&yacute;&#382;d&#328;ov&yacute;ch intervaloch po&#269;as prv&eacute;ho mesiaca a potom v mesa&#269;n&yacute;ch alebo v&auml;&#269;&scaron;&iacute;ch intervaloch. Rutinn&eacute; vy&scaron;etrenie krvi v ka&#382;dom &#269;asovom bode zah&#341;&#328;alo minim&aacute;lne <a class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"&lt;div class=glossaryItemBody&gt;Hematokrit je pomer medzi objemom bunkovej &#269;asti krvi (teda najm&auml; erytrocytov) a objemom celej krvi. Ud&aacute;va sa v %. Fyziologick&eacute; rozmedzie: 24-45 %&lt;\/div&gt;\" href=\"https:\/\/www.fipwarriors.eu\/en\/glossary\/hematokrit\/\" data-mobile-support=\"0\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex=\"0\" role=\"link\">hematokrit<\/a>, celkov&yacute; plazmatick&yacute; prote&iacute;n, ikterick&yacute; index, celkov&yacute; po&#269;et bielych krviniek, diferenci&aacute;lny rozpo&#269;et bielych krviniek a absol&uacute;tny po&#269;et <a class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"&lt;div class=glossaryItemBody&gt;Neutrofiln&iacute; granulocyt (zkr&aacute;cen&#283; neutrofil) je z&aacute;stupcem bun&#283;&#269;n&eacute; &#269;&aacute;sti p&#345;irozen&eacute; imunity a tak&eacute; nejpo&#269;etn&#283;j&scaron;&iacute;m leukocytem cirkuluj&iacute;c&iacute;m v krvi &#269;lov&#283;ka nebo my&scaron;&iacute;. Neutrofily p&#345;edstavuj&iacute; jedny z hlavn&iacute;ch efektorov&yacute;ch bun&#283;k pod&iacute;lej&iacute;c&iacute;ch se na akutn&iacute; f&aacute;zi z&aacute;n&#283;tu a eliminaci patogen&#367; v p&#345;&iacute;pad&#283; bakteri&aacute;ln&iacute; infekce. Hlavn&iacute; chemotaktickou molekulou pro neutrofily je chemokin interleukin 8 (IL-8).N&aacute;zev je odvozen od zbarven&iacute; granul, kter&eacute; jsou v jeho cytoplasm&#283;. Spole&#269;n&#283; s eosinofily a basofily tvo&#345;&iacute; rodinu polymorfonukle&aacute;rn&iacute;ch leukocyt&#367;. Zat&iacute;mco p&#345;i barven&iacute; hematoxylin-eosinem se eozinofiln&iacute; granulocyt barv&iacute; do &#269;ervena a bazofiln&iacute; granulocyt naopak do tmav&#283; modra, cytoplasmatick&eacute; granule neutrofiln&iacute;ch granulocyt&#367; se barv&iacute; neutr&aacute;ln&#283; do r&#367;&#382;ov&eacute;ho odst&iacute;nu.V krevn&iacute; cirkulaci jsou neutrofily schopn&eacute; p&#345;e&#382;it&iacute; a&#382; 5 dn&#367;, p&#345;i vycestov&aacute;n&iacute; do tk&aacute;n&#283; pak doch&aacute;z&iacute; k rapidn&iacute; aktivaci neutrofil&#367; a jejich rychl&eacute;mu odum&iacute;r&aacute;n&iacute;. Pohlcen&iacute; apoptotick&yacute;ch neutrofil&#367; makrof&aacute;gy vede k jejich utlumen&iacute; a postupn&eacute; rezoluci z&aacute;n&#283;tliv&eacute; odpov&#283;di.&lt;\/div&gt;\" href=\"https:\/\/www.fipwarriors.eu\/en\/glossary\/neutrofil\/\" data-mobile-support=\"0\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex=\"0\" role=\"link\">neutrofilov<\/a>, <a class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"&lt;div class=glossaryItemBody&gt;&amp;lt;strong&amp;gt;Lymfocyt&amp;lt;\/strong&amp;gt; &ndash; druh b&iacute;l&eacute; krvinky, kter&yacute; se v&yacute;znamn&#283; pod&iacute;l&iacute; na specifick&eacute; imunit&#283; organismu. L. se vyskytuj&iacute; v krvi a v lymfatick&eacute; tk&aacute;ni a d&#283;l&iacute; se na dv&#283; z&aacute;kladn&iacute; skupiny T a B lymfocyty n&#283;kdy se u&#382;&iacute;v&aacute; n&aacute;zvu T a B bu&#328;ky. K funkc&iacute;m T lymfocyt&#367; pat&#345;&iacute; regulace ostatn&iacute;ch bun&#283;k z&uacute;&#269;astn&#283;n&yacute;ch na imunitn&iacute; odpov&#283;di a likvidace choroboplodn&yacute;ch z&aacute;rodk&#367;, pop&#345;. i vlastn&iacute;ch bun&#283;k jimi naka&#382;en&yacute;ch a n&aacute;dor&#367;. B lymfocyty se po setk&aacute;n&iacute; s antigenem a za p&#345;isp&#283;n&iacute; skupiny T lymfocyt&#367; p&#345;em&#283;&#328;uj&iacute; na plasmatick&eacute; bu&#328;ky, kter&eacute; tvo&#345;&iacute; protil&aacute;tky imunoglobuliny. L. p&#345;e&#382;&iacute;vaj&iacute; v organismu dlouhou dobu a tvo&#345;&iacute; tzv. pam&#283;&#357;ov&eacute; bu&#328;ky, kter&eacute; si &amp;quot;pamatuj&iacute;&amp;quot; setk&aacute;n&iacute; s cizorodou l&aacute;tkou antigenem a jsou proti n&iacute; schopny op&#283;t reagovat na tomto principu funguje o&#269;kov&aacute;n&iacute;. P&#345;i v&#283;t&scaron;in&#283; sv&yacute;ch funkc&iacute; spolupracuj&iacute; s makrof&aacute;gy srov. APC, p&#345;i&#269;em&#382; vz&aacute;jemnou komunikaci zprost&#345;edkov&aacute;vaj&iacute; mj. HLA antigeny.&lt;\/div&gt;\" href=\"https:\/\/www.fipwarriors.eu\/en\/glossary\/lymfocytov\/\" data-mobile-support=\"0\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex=\"0\" role=\"link\">lymfocytov<\/a> a monocytov a eozinofilov. Kv&ocirc;li kontrole potenci&aacute;lnej toxicity liekov sa pravidelne zaznamen&aacute;vali hodnoty chemick&eacute;ho zlo&#382;enia krvn&eacute;ho s&eacute;ra. Vzorky bru&scaron;n&yacute;ch v&yacute;potkov sa z&iacute;skavali paracent&eacute;zou ka&#382;d&yacute; druh&yacute; de&#328;, pokia&#318; sa dali z&iacute;ska&#357;, &#269;o bolo zvy&#269;ajne prv&yacute;ch 3&ndash;7 dn&iacute;. Ma&#269;ky s d&yacute;chavi&#269;nos&#357;ou boli vy&scaron;etren&eacute; hrudnou ultrasonografiou a vzorka tekut&iacute;n bola z&iacute;skan&aacute; ultrazvukom vedenou paracent&eacute;zou. V&yacute;potky sa sk&uacute;mali na pr&iacute;tomnos&#357; fibr&iacute;nov&yacute;ch zrazen&iacute;n, pr&iacute;mes neutrofilov a mal&yacute;ch\/ve&#318;k&yacute;ch mononukle&aacute;rnych buniek, intenzitu &#382;lt&eacute;ho sfarbenia, viskozitu p&ocirc;soben&iacute;m vl&aacute;kien a celkov&yacute; obsah bielkov&iacute;n. Bunkov&eacute; pelety z peritone&aacute;lnych alebo hrudn&yacute;ch v&yacute;potkov boli tie&#382; sk&uacute;man&eacute; pomocou qRT-PCR na hladinu v&iacute;rusovej RNA, ako u&#382; bolo op&iacute;san&eacute;.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ma&#269;ky boli vydan&eacute; svojim majite&#318;om, ke&#271; bola zaznamenan&aacute; pozit&iacute;vna reakcia na lie&#269;bu, zvy&#269;ajne do 5 dn&iacute;. Majite&#318; (majitelia) boli bu&#271; ved&uacute;cim veterin&aacute;rnym lek&aacute;rom, alebo veterin&aacute;rnym lek&aacute;rom prim&aacute;rnej starostlivosti pou&#269;en&iacute;, ako poda&#357; liek dvakr&aacute;t denne subkut&aacute;nnou injekciou. Miesta vpichu sa menili tak, aby zah&#341;&#328;ali horn&uacute; l&iacute;niu od z&aacute;tylku po stredn&uacute; &#269;as&#357; chrbta a po stran&aacute;ch hrudn&iacute;ka a bokov. Dbalo sa na to, aby sa zabr&aacute;nilo ukladaniu lie&#269;iva do dermis alebo postupne na rovnakom podko&#382;nom mieste. Majitelia boli vyzvan&iacute;, aby udr&#382;iavali denn&eacute; z&aacute;znamy o rekt&aacute;lnej teplote, aktivite, chuti do jedla, defek&aacute;cii a mo&#269;en&iacute; a t&yacute;&#382;denn&eacute; a&#382; dvojt&yacute;&#382;d&#328;ov&eacute; telesn&eacute; hmotnosti. Periodick&eacute; vzorky krvi pre CBC a chemick&eacute; hodnoty s&eacute;ra boli odoberan&eacute; osobn&yacute;mi veterin&aacute;rnymi lek&aacute;rmi majite&#318;ov a zaslan&eacute; do komer&#269;n&yacute;ch veterin&aacute;rnych diagnostick&yacute;ch laborat&oacute;ri&iacute;. Ak&eacute;ko&#318;vek abnorm&aacute;lne pr&iacute;znaky alebo spr&aacute;vanie bolo potrebn&eacute; zaznamena&#357; a okam&#382;ite hl&aacute;si&#357;. Eutan&aacute;zia sa v pr&iacute;pade potreby uskuto&#269;&#328;ovala bu&#271; na UC Davis, alebo veterin&aacute;rnym lek&aacute;rom prim&aacute;rnej starostlivosti. Tel&aacute; ma&#269;iek usmrten&eacute; veterin&aacute;rnymi lek&aacute;rmi prim&aacute;rnej starostlivosti boli okam&#382;ite schladen&eacute; a odoslan&eacute; v obaloch s &#318;adom expresnou po&scaron;tou do UC Davis na pitvu. Po&#382;iadavky majite&#318;ov o zaobch&aacute;dzanie a kone&#269;n&uacute; dispoz&iacute;ciu tela boli re&scaron;pektovan&eacute;.<\/p>\n\n\n\n<h2 class=\"lm-underscore wp-block-heading\">V&yacute;sledky<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Stanovenie d&#314;&#382;ky lie&#269;by<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Prv&yacute;ch p&auml;&#357; ma&#269;iek v &scaron;t&uacute;dii bolo spo&#269;iatku lie&#269;en&yacute;ch 2 t&yacute;&#382;dne (CT01, CT02, CT03, CT04 a CT05). U v&scaron;etk&yacute;ch ma&#269;iek bolo pozorovan&eacute; r&yacute;chle zlep&scaron;enie zdravotn&eacute;ho stavu a lie&#269;ba bola ukon&#269;en&aacute;. Napriek priaznivej po&#269;iato&#269;nej odpovedi sa pr&iacute;znaky ochorenia opakovali 1 (CT01, CT05), 2 (CT03, CT04) alebo 7 (CT02) t&yacute;&#382;d&#328;ov po ukon&#269;en&iacute; 2-t&yacute;&#382;d&#328;ovej lie&#269;by (obr&aacute;zok 2). Ma&#269;ky boli potom lie&#269;en&eacute; znova, d&ocirc;vodom bolo postupn&eacute; predl&#382;ovanie prim&aacute;rnej a sekund&aacute;rnej doby lie&#269;by, k&yacute;m ich FIP ost&aacute;vala citliv&aacute; na GC376 (pozri CT04, CT22, obr&aacute;zok 2). Nov&eacute; ma&#269;ky, ktor&eacute; sa dostali do &scaron;t&uacute;die, sa &#271;alej lie&#269;ili 3 (CT07) alebo 4 t&yacute;&#382;dne (CT08, CT16). Ma&#269;ky CT08 a CT16 spo&#269;iatku reagovali, ale ich pr&iacute;znaky choroby sa po&#269;as lie&#269;by objavili znova. U ma&#269;ky CT08 sa vyvinula neurologick&aacute; choroba, zatia&#318; &#269;o u ma&#269;ky CT16 sa opakovane vyskytli bru&scaron;n&eacute; l&eacute;zie (tabu&#318;ka 1). Prim&aacute;rne a sekund&aacute;rne lie&#269;ebn&eacute; doby sa potom pred&#314;&#382;ili na 9 t&yacute;&#382;d&#328;ov (CT07, CT09, CT10, CT14) (obr&aacute;zok 2). U ma&#269;ky CT09 sa vyvinuli neurologick&eacute; pr&iacute;znaky po&#269;as 9-t&yacute;&#382;d&#328;ovej z&aacute;kladnej lie&#269;by a nakoniec bola utraten&aacute;, ke&#271; sa pr&iacute;znaky choroby stali z&aacute;va&#382;n&yacute;mi. U ma&#269;ky CT07 sa vyskytlo neurologick&eacute; ochorenie 6 t&yacute;&#382;d&#328;ov po za&#269;iatku druhej lie&#269;by. Od tohto bodu boli v&scaron;etky nov&eacute; ma&#269;ky prijat&eacute; to &scaron;t&uacute;die a star&scaron;ie ma&#269;ky, ako napr&iacute;klad CT10, lie&#269;en&eacute; alebo znovu lie&#269;en&eacute; najmenej 12 t&yacute;&#382;d&#328;ov. Pr&iacute;nos 12-t&yacute;&#382;d&#328;ovej lie&#269;by bol najzrejmej&scaron;&iacute; u ma&#269;ky CT04, ktor&aacute; bola predt&yacute;m lie&#269;en&aacute; u&#382; trikr&aacute;t s krat&scaron;ou dobou lie&#269;by nasledovanou relapsom (obr&aacute;zok 2). Lie&#269;ba bola ukon&#269;en&aacute; u ma&#269;iek, ktor&eacute; nemali klinick&eacute; ani laborat&oacute;rne pr&iacute;znaky choroby po 12 t&yacute;&#382;d&#328;och prim&aacute;rnej ani sekund&aacute;rnej lie&#269;by. Zistilo sa, &#382;e minim&aacute;lna doba lie&#269;by by mala by&#357; okolo 12 t&yacute;&#382;d&#328;ov. Ma&#269;ka CT21 bola lie&#269;en&aacute; 17 t&yacute;&#382;d&#328;ov z d&ocirc;vodu oneskoren&eacute;ho zlep&scaron;enia po&#269;tu celkov&yacute;ch bielkov&iacute;n a bielych krviniek (obr&aacute;zok 2). U tejto ma&#269;ky do&scaron;lo k relapsu pleur&aacute;lnej FIP o 13 t&yacute;&#382;d&#328;ov nesk&ocirc;r a v &#269;ase p&iacute;sania tohto &#269;l&aacute;nku bola podroben&aacute; &#271;al&scaron;ej lie&#269;be.<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><a href=\"https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2021\/02\/gc376fig2-compressed.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"797\" height=\"417\" src=\"https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2021\/02\/gc376fig2-compressed.jpg\" alt=\"\" class=\"wp-image-5523\" srcset=\"https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2021\/02\/gc376fig2-compressed.jpg 797w, https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2021\/02\/gc376fig2-compressed-300x157.jpg 300w, https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2021\/02\/gc376fig2-compressed-768x402.jpg 768w, https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2021\/02\/gc376fig2-compressed-16x8.jpg 16w, https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2021\/02\/gc376fig2-compressed-350x183.jpg 350w, https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2021\/02\/gc376fig2-compressed-64x33.jpg 64w\" sizes=\"auto, (max-width: 706px) 89vw, (max-width: 767px) 82vw, 740px\"\/><\/a><figcaption>Or&aacute;zok 2.<br>&#268;asov&aacute; &scaron;k&aacute;la lie&#269;by a klinick&yacute; v&yacute;sledok 20 ma&#269;iek, ktor&eacute; vst&uacute;pili do klinickej &scaron;t&uacute;die s inhib&iacute;torom prote&aacute;zy GC376. Obdobia, po&#269;as ktor&yacute;ch boli ma&#269;ky lie&#269;en&eacute;, s&uacute; ozna&#269;en&eacute; pln&yacute;mi &#269;iarami. Je uveden&yacute; d&aacute;tum posledn&eacute;ho d&#328;a lie&#269;by pre &scaron;es&#357; ma&#269;iek, ktor&eacute; dosiahli trval&uacute; klinick&uacute; remisiu. Ma&#269;ka 21 bola v &#269;ase p&iacute;sania tohto &#269;l&aacute;nku e&scaron;te v lie&#269;be. Zvy&scaron;n&yacute;ch 13 ma&#269;iek pod&#318;ahlo neneurologickej FIP alebo neurologickej FIP po ukon&#269;en&iacute; prim&aacute;rnej alebo sekund&aacute;rnej lie&#269;by do 0-7 t&yacute;&#382;d&#328;ov<\/figcaption><\/figure><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">Odpove&#271; na po&#269;iato&#269;n&uacute; lie&#269;bu a ukazovatele priaznivej reakcie<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Po&#269;as prv&yacute;ch 1&ndash;4 t&yacute;&#382;d&#328;ov lie&#269;by sa u 19\/20 ma&#269;iek prejavilo dramatick&eacute; a progres&iacute;vne zlep&scaron;ovanie zdravotn&eacute;ho stavu. V&yacute;nimkou bola ma&#269;ka CT16, ktor&aacute; reagovala poklesom teploty v kone&#269;n&iacute;ku po&#269;as prv&yacute;ch 4 dn&iacute; lie&#269;by. Hor&uacute;&#269;ka sa v&scaron;ak vr&aacute;tila a zdravotn&yacute; stav sa nasleduj&uacute;cich 23 dn&iacute; na&#271;alej zhor&scaron;oval a ma&#269;ka bola eutanizovan&aacute;. Hor&uacute;&#269;ka (&gt;38,9 &deg;C) u &#271;al&scaron;&iacute;ch 19 ma&#269;iek zmizla do 24&ndash;48 hod&iacute;n, so s&uacute;&#269;asn&yacute;m zlep&scaron;en&iacute;m chuti do jedla, aktivity, rastu a pr&iacute;rastku hmotnosti. Bru&scaron;n&eacute; v&yacute;potky boli zvy&#269;ajne nezistite&#318;n&eacute; do 2 t&yacute;&#382;d&#328;ov. Zvy&scaron;kov&yacute; hrudn&yacute; v&yacute;potok zost&aacute;vaj&uacute;ci po po&#269;iato&#269;nej terapeutickej dren&aacute;&#382;i po 3 d&#328;och u ma&#269;ky CT20 takmer zmizol. Ren&aacute;lne tumory u ma&#269;iek CT02 a CT13 sa tie&#382; r&yacute;chlo zmen&scaron;ili a po 2 t&yacute;&#382;d&#328;och u&#382; neboli hmatate&#318;n&eacute;. Zv&auml;&#269;&scaron;en&eacute; mezenterick&eacute; lymfatick&eacute; uzliny sa k norm&aacute;lnej ve&#318;kosti vracali pomal&scaron;ie. Hmatate&#318;n&eacute; zhrubnutie hrub&eacute;ho &#269;reva a s n&iacute;m spojen&eacute; ileo-cek&aacute;lno-kolick&eacute; &uacute;tvary reagovali najpomal&scaron;ie a u ma&#269;ky CT03 pretrv&aacute;vali aj napriek lie&#269;be a n&aacute;vratu k inak norm&aacute;lnemu zdravotn&eacute;mu stavu. &#381;lta&#269;ka, &#269;ast&yacute; n&aacute;lez u mlad&scaron;&iacute;ch ma&#269;iek s efuz&iacute;vnou FIP, pomaly ustupovala po&#269;as 2 alebo viac t&yacute;&#382;d&#328;ov, s&uacute;&#269;asne so zni&#382;ovan&iacute;m hyperbilirubin&eacute;mie. Pr&iacute;znaky o&#269;nej choroby za&#269;ali mizn&uacute;t do 48 hod&iacute;n a zmizli do 1 t&yacute;&#382;d&#328;a bez oh&#318;adu na po&#269;iato&#269;n&uacute; z&aacute;va&#382;nos&#357; (obr&aacute;zok 3).<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><a href=\"https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2021\/02\/gc376-fig3.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"630\" height=\"427\" src=\"https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2021\/02\/gc376-fig3.jpg\" alt=\"\" class=\"wp-image-5531\" srcset=\"https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2021\/02\/gc376-fig3.jpg 630w, https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2021\/02\/gc376-fig3-300x203.jpg 300w, https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2021\/02\/gc376-fig3-16x12.jpg 16w, https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2021\/02\/gc376-fig3-350x237.jpg 350w, https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2021\/02\/gc376-fig3-64x43.jpg 64w\" sizes=\"auto, (max-width: 630px) 100vw, 630px\"\/><\/a><figcaption>Obr&aacute;zok 3.<br>Vzh&#318;ad o&#269;&iacute; ma&#269;ky CT08 pred zah&aacute;jen&iacute;m lie&#269;by (a) a o t&yacute;&#382;de&#328; nesk&ocirc;r (b). U tejto ma&#269;ky sa o 3 t&yacute;&#382;dne po za&#269;iatku lie&#269;by rozvinuli z&aacute;va&#382;n&eacute; neurologick&eacute; pr&iacute;znaky.<\/figcaption><\/figure><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Pr&iacute;rastok hmotnosti bol jednoduch&yacute;m a presn&yacute;m krit&eacute;riom rastu a zlep&scaron;enia zdravia. Ako vz&#357;a&#382;n&aacute; hodnota pre tento parameter bola pou&#382;it&aacute; hmotnos&#357; ma&#269;ky CT04, najstar&scaron;ej ma&#269;ky v teste (obr&aacute;zok 4a). Ma&#269;ka CT04 vykazovala signifikantn&yacute; &uacute;bytok hmotnosti o 30%. Po ka&#382;dom kole lie&#269;by pribrala, kr&aacute;tko pred ka&#382;d&yacute;m relapsom choroby za&#269;ala chudn&uacute;&#357; a po ka&#382;dej lie&#269;be op&auml;&#357; pribrala. Po 9,3 mesiacoch bez lie&#269;by a po lie&#269;be (4,8 kg a&#382; 7,19 kg) znovu z&iacute;skala v&scaron;etku svoju straten&uacute; v&aacute;hu. V&scaron;etky ma&#269;iatka s trvalou remisiou po&#269;as a po antiv&iacute;rusovej lie&#269;be ustavi&#269;ne priberali na v&aacute;he, &#269;o nazna&#269;uje, &#382;e pri antiv&iacute;rusovej lie&#269;be pokra&#269;oval norm&aacute;lny rast (obr&aacute;zok 4b). Jedna ma&#269;ka (CT15) a dvaja koc&uacute;ri (CT17, 20) boli bez komplik&aacute;ci&iacute; kastrovan&iacute; po&#269;as remisie choroby.<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><a href=\"https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2021\/02\/gc376-fig4.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"797\" height=\"281\" src=\"https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2021\/02\/gc376-fig4.jpg\" alt=\"\" class=\"wp-image-5535\" srcset=\"https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2021\/02\/gc376-fig4.jpg 797w, https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2021\/02\/gc376-fig4-300x106.jpg 300w, https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2021\/02\/gc376-fig4-768x271.jpg 768w, https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2021\/02\/gc376-fig4-16x6.jpg 16w, https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2021\/02\/gc376-fig4-350x123.jpg 350w, https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2021\/02\/gc376-fig4-64x23.jpg 64w\" sizes=\"auto, (max-width: 706px) 89vw, (max-width: 767px) 82vw, 740px\"\/><\/a><figcaption>Obr&aacute;zok 4.<br>Antiv&iacute;rusov&aacute; lie&#269;ba a zmeny telesnej hmotnosti. (a) Ma&#269;ka CT04, 6,8-ro&#269;n&yacute; kastrovan&yacute; samec, ktor&yacute; mal such&uacute; ma&#269;aciu infek&#269;n&uacute; peritonit&iacute;du (FIP), absolvoval &scaron;tyri cykly antiv&iacute;rusovej lie&#269;by s narastaj&uacute;cim trvan&iacute;m, ako je zn&aacute;zornen&eacute; bodkovan&yacute;mi pol&iacute;&#269;kami. Pred ka&#382;dou recid&iacute;vou schudol a po n&aacute;slednej lie&#269;be pribral. (b) Pr&iacute;rastky hmotnosti u &scaron;tyroch ma&#269;iatok vo veku 3,5-4,4 mesiaca po&#269;as a po antiv&iacute;rusovej lie&#269;be s&uacute; zn&aacute;zornen&eacute; bodkami. Bodkovan&yacute; obd&#314;&#382;nik ozna&#269;uje d&#314;&#382;ku antiv&iacute;rusovej lie&#269;by (12 t&yacute;&#382;d&#328;ov)<\/figcaption><\/figure><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Lymfop&eacute;nia bola be&#382;n&yacute;m klinick&yacute;m pr&iacute;znakom ma&#269;iek s vlhkou FIP (obr&aacute;zok 5) a mala tendenciu priamo korelova&#357; so z&aacute;va&#382;nos&#357;ou bru&scaron;n&eacute;ho z&aacute;palu, &#269;o nazna&#269;ovala viskozita, pr&iacute;tomnos&#357; fibr&iacute;nov&yacute;ch vl&aacute;kien, obsah bielkov&iacute;n, po&#269;et buniek a stupe&#328; &#382;ltej farby v&yacute;potku. Lymfop&eacute;nia sa zlep&scaron;ila pri lie&#269;be v&scaron;etk&yacute;ch ma&#269;iek s vlhkou FIP okrem CT16, ale nepomohla predpoveda&#357; relapsy choroby, ktor&eacute; sa vyskytli potom (obr&aacute;zok 5a). U ma&#269;iek so suchou FIP lymfop&eacute;nia nebola tak v&yacute;razn&aacute;, a pre hodnotenie odpovede na lie&#269;bu nebola u&#382;ito&#269;n&aacute; tak, ako in&eacute; parametre (obr&aacute;zok 5b).<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><a href=\"https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2021\/02\/gc376-fig5.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"596\" height=\"630\" src=\"https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2021\/02\/gc376-fig5.jpg\" alt=\"\" class=\"wp-image-5538\" srcset=\"https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2021\/02\/gc376-fig5.jpg 596w, https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2021\/02\/gc376-fig5-284x300.jpg 284w, https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2021\/02\/gc376-fig5-568x600.jpg 568w, https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2021\/02\/gc376-fig5-11x12.jpg 11w, https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2021\/02\/gc376-fig5-350x370.jpg 350w, https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2021\/02\/gc376-fig5-64x68.jpg 64w\" sizes=\"auto, (max-width: 596px) 100vw, 596px\"\/><\/a><figcaption>Obr&aacute;zok 5.<br>Priemer a smerodajn&aacute; odch&yacute;lka (SD) absol&uacute;tneho po&#269;tu lymfocytov u lie&#269;en&yacute;ch pacientov s (a) vlhkou alebo (b) suchou ma&#269;acou infek&#269;nou peritonit&iacute;dou (FIP). a) Dvan&aacute;s&#357; ma&#269;iek (pr&aacute;zdny kr&uacute;&#382;ok), u ktor&yacute;ch sa prejavil bru&scaron;n&yacute; alebo hrudn&yacute; v&yacute;potok, a ktor&eacute; boli lie&#269;en&eacute; a&#382; 12 t&yacute;&#382;d&#328;ov. Trin&aacute;sta ma&#269;ka (CT16, pln&yacute; kr&uacute;&#382;ok) s bru&scaron;n&yacute;m v&yacute;potkom reagovala na lie&#269;bu zle. b) Sedem ma&#269;iek so suchou alebo vlhkou formou FIP a s n&aacute;slednou lie&#269;bou v trvan&iacute; 6 t&yacute;&#382;d&#328;ov.<\/figcaption><\/figure><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Celkov&eacute; hladiny bielkov&iacute;n v plazme ako nepriamy indik&aacute;tor koncentr&aacute;cie globul&iacute;nu boli pri vy&scaron;etren&iacute; &#269;asto zv&yacute;&scaron;en&eacute;, ale hodnoty boli po&#269;as prv&yacute;ch 4 t&yacute;&#382;d&#328;ov ve&#318;mi variabiln&eacute; a &#269;asto prechodne st&uacute;pali po&#269;as resorpcie v&yacute;potkov. Ma&#269;ky, u ktor&yacute;ch nakoniec lie&#269;ba nebola &uacute;spe&scaron;n&aacute;, mali tendenciu ma&#357; vy&scaron;&scaron;ie celkov&eacute; koncentr&aacute;cie plazmatick&yacute;ch prote&iacute;nov na za&#269;iatku lie&#269;by a mali tendenciu udr&#382;iava&#357; si vy&scaron;&scaron;ie hladiny po&#269;as lie&#269;by ako ma&#269;ky, ktor&eacute; &uacute;spe&scaron;ne dosiahli trval&uacute; remisiu (obr&aacute;zok 6).<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><a href=\"https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2021\/02\/gc376-fig6.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"676\" height=\"376\" src=\"https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2021\/02\/gc376-fig6.jpg\" alt=\"\" class=\"wp-image-5542\" srcset=\"https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2021\/02\/gc376-fig6.jpg 676w, https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2021\/02\/gc376-fig6-300x167.jpg 300w, https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2021\/02\/gc376-fig6-16x9.jpg 16w, https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2021\/02\/gc376-fig6-350x195.jpg 350w, https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2021\/02\/gc376-fig6-64x36.jpg 64w\" sizes=\"auto, (max-width: 676px) 100vw, 676px\"\/><\/a><figcaption>Obr&aacute;zok 6.<br>Priemer a SD celkov&yacute;ch hlad&iacute;n bielkov&iacute;n v plazme u 20 ma&#269;iek po&#269;as obdobia 12 t&yacute;&#382;d&#328;ov. Trin&aacute;s&#357; ma&#269;iek utrpelo v r&ocirc;znych t&yacute;&#382;d&#328;och lie&#269;by (W) smrte&#318;n&eacute; relapsy a sedem ma&#269;iek dosiahlo trval&uacute; remisiu po 12 t&yacute;&#382;d&#328;och lie&#269;by (W-SV)<\/figcaption><\/figure><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">Zn&iacute;&#382;enie hladiny v&iacute;rusovej RNA v bunk&aacute;ch z ascitickej tekutiny v spojitosti s lie&#269;bou<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Sekven&#269;n&eacute; vzorky ascitu boli odobrat&eacute; nieko&#318;k&yacute;m t&yacute;m ist&yacute;m ma&#269;k&aacute;m po&#269;as prv&yacute;ch 6&ndash;25 dn&iacute; antiv&iacute;rusovej lie&#269;by a boli testovan&eacute; na hladiny v&iacute;rusovej RNA pomocou qRT-PCR. Hladiny FIPV s&uacute; &#269;asto n&iacute;zke alebo negat&iacute;vne v krvi ma&#269;iek s FIP a najvy&scaron;&scaron;ie s&uacute; v bunk&aacute;ch z v&yacute;potkov. Preto boli najspo&#318;ahlivej&scaron;&iacute;m zdrojom FIPV RNA bunky z ascitu alebo pleur&aacute;lneho v&yacute;potku. Ma&#269;ky CT15, CT16 a CT17 mali 955, 1699 a 2937-kr&aacute;t vy&scaron;&scaron;ie hladiny v&iacute;rusovej RNA, v danom porad&iacute;, ako CT02, ktor&eacute; mali najni&#382;&scaron;iu v&iacute;rusov&uacute; z&aacute;&#357;a&#382; v ef&uacute;zii pred lie&#269;bou (obr&aacute;zok 7). Hladiny v&iacute;rusovej RNA sa v priebehu 2 t&yacute;&#382;d&#328;ov zn&iacute;&#382;ili a&#382; 1567463-n&aacute;sobne v porovnan&iacute; s hodnotami pred lie&#269;bou, s v&yacute;nimkou ma&#269;ky CT16 (obr&aacute;zok 8), ktor&aacute; mala druh&uacute; najvy&scaron;&scaron;iu hladinu v&iacute;rusovej RNA pred antiv&iacute;rusovou lie&#269;bou medzi 12 ma&#269;kami so vzorkami v&yacute;potkov dostupn&yacute;mi na testovanie ( Obr&aacute;zok 7). Absencia r&yacute;chleho poklesu hlad&iacute;n v&iacute;rusovej RNA u ma&#269;ky CT16 spolu s &#357;a&#382;kou lymfop&eacute;niou m&ocirc;&#382;e vysvet&#318;ova&#357;, pre&#269;o nereagovala na lie&#269;bu. CT10 tie&#382; mala o nie&#269;o pomal&scaron;&iacute; pokles hladiny v&iacute;rusu a po antiv&iacute;rusovej lie&#269;be dvakr&aacute;t relapsovala. Je pozoruhodn&eacute;, &#382;e hladiny v&iacute;rusovej RNA v bunk&aacute;ch ascitu u ma&#269;iek CT15, CT17 a CT18 klesali najr&yacute;chlej&scaron;ie a boli tie&#382; medzi piatimi ma&#269;kami, u ktor&yacute;ch do&scaron;lo k trvalej remisii ochorenia. &#268;i pr&iacute;&#269;inou bola vlastnos&#357; jednotliv&yacute;ch izol&aacute;tov FIPV, alebo forma a z&aacute;va&#382;nos&#357; choroby hostite&#318;a nebolo zisten&eacute;.<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><a href=\"https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2021\/02\/gc376-fig7.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"599\" height=\"457\" src=\"https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2021\/02\/gc376-fig7.jpg\" alt=\"\" class=\"wp-image-5546\" srcset=\"https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2021\/02\/gc376-fig7.jpg 599w, https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2021\/02\/gc376-fig7-300x229.jpg 300w, https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2021\/02\/gc376-fig7-16x12.jpg 16w, https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2021\/02\/gc376-fig7-350x267.jpg 350w, https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2021\/02\/gc376-fig7-64x49.jpg 64w\" sizes=\"auto, (max-width: 599px) 100vw, 599px\"\/><\/a><figcaption>Obr&aacute;zok 7.<br>Relat&iacute;vne po&#269;iato&#269;n&eacute; hladiny RNA v&iacute;rusu infek&#269;nej peritonit&iacute;dy ma&#269;iek (FIPV) vo v&yacute;potkov&yacute;ch vzork&aacute;ch pacientov pred antiv&iacute;rusovou lie&#269;bou. Na vzork&aacute;ch ef&uacute;zi&iacute; pacientov pred zah&aacute;jen&iacute;m lie&#269;by sa uskuto&#269;nila kvantitat&iacute;vna PCR v re&aacute;lnom &#269;ase. Relat&iacute;vne z&aacute;kladn&eacute; hladiny v&iacute;rusovej RNA ako n&aacute;sobn&eacute; rozdiely v porovnan&iacute; s &uacute;rov&#328;ou v&iacute;rusu pred lie&#269;bou CT02, ma&#269;ka s najni&#382;&scaron;&iacute;mi hladinami RNA. &Uacute;rove&#328; transkriptov RNA bola vypo&#269;&iacute;tan&aacute; pre ka&#382;d&eacute;ho pacienta pomocou met&oacute;dy &#8710;Ct s referen&#269;n&yacute;m g&eacute;nom pre beta-akt&iacute;n<\/figcaption><\/figure><\/div>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><a href=\"https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2021\/02\/gc376-fig8.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"607\" height=\"515\" src=\"https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2021\/02\/gc376-fig8.jpg\" alt=\"\" class=\"wp-image-5549\" srcset=\"https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2021\/02\/gc376-fig8.jpg 607w, https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2021\/02\/gc376-fig8-300x255.jpg 300w, https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2021\/02\/gc376-fig8-14x12.jpg 14w, https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2021\/02\/gc376-fig8-350x297.jpg 350w, https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2021\/02\/gc376-fig8-64x54.jpg 64w\" sizes=\"auto, (max-width: 607px) 100vw, 607px\"\/><\/a><figcaption>Obr&aacute;zok 8.<br>Zn&iacute;&#382;enie RNA v&iacute;rusu ma&#269;acej infek&#269;nej peritonit&iacute;dy zo sekven&#269;n&yacute;ch vzoriek v&yacute;potku po&#269;as lie&#269;by GC376 u ma&#269;iek CT10, CT12, CT15, CT16, CT17, CT18 a CT23. Ka&#382;d&yacute; bod ozna&#269;uje n&aacute;sobn&eacute; zn&iacute;&#382;enie hladiny v&iacute;rusovej RNA oproti hladine nameranej pred lie&#269;bou (de&#328; 0). Hladiny v&iacute;rusovej RNA sa stanovili pomocou kvantitat&iacute;vnej PCR v re&aacute;lnom &#269;ase met&oacute;dou &#8710;Ct a beta-akt&iacute;n referen&#269;n&yacute;m g&eacute;nom<\/figcaption><\/figure><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">Zlyhanie lie&#269;by v d&ocirc;sledku recid&iacute;vy bru&scaron;nej FIP alebo v&yacute;skytu neurologick&eacute;ho ochorenia<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Trin&aacute;s&#357; z 20 ma&#269;iek v teste nakoniec pod&#318;ahlo recid&iacute;ve choroby. Jedna ma&#269;ka (CT16) nevyk&aacute;zala v&yacute;znamn&eacute; zlep&scaron;enie a bola eutanizovan&aacute; 3 t&yacute;&#382;dne po za&#269;iatku 4-t&yacute;&#382;d&#328;ov&eacute;ho lie&#269;ebn&eacute;ho re&#382;imu (obr&aacute;zky 2 a 8), 8), zatia&#318; &#269;o u ostatn&yacute;ch 12 do&scaron;lo k variabiln&eacute;mu obdobiu remisie ochorenia po prim&aacute;rnej alebo sekund&aacute;rnej lie&#269;be trvaj&uacute;cej 3&ndash;17 t&yacute;&#382;d&#328;ov (priemerne 7,8 t&yacute;&#382;d&#328;a) (obr&aacute;zok 2). V&scaron;etky z t&yacute;chto 13 ma&#269;iek okrem jednej (CT09) boli pitvan&eacute; (tabu&#318;ka 1). Osem z t&yacute;chto ma&#269;iek bolo eutanizovan&yacute;ch kv&ocirc;li z&aacute;va&#382;n&yacute;m neurologick&yacute;m pr&iacute;znakom a p&auml;&#357; z d&ocirc;vodu recid&iacute;vy bru&scaron;nej choroby (obr&aacute;zok 2). Pri vy&scaron;etren&iacute; boli sekund&aacute;rne detekovan&eacute; tri ma&#269;ky, ktor&eacute; pod&#318;ahli neurologick&eacute;mu ochoreniu (CT05, CT08, CT13) v d&ocirc;sledku okul&aacute;rnej FIP (tabu&#318;ka 1). Medzi najskor&scaron;ie pr&iacute;znaky neurologick&eacute;ho ochorenia patrili hor&uacute;&#269;ka, ktor&aacute; pretrv&aacute;vala aj napriek pokra&#269;uj&uacute;cej lie&#269;be, apatia, ob&#269;asn&eacute; svalov&eacute; z&aacute;&scaron;klby u&scaron;&iacute; a svalov, neobvykl&eacute; pohyby pri preh&#314;tan&iacute;, nutkav&eacute; na&#357;ahovanie kon&#269;at&iacute;n a strata norm&aacute;lnej mentality, ktor&aacute; sa prejavila kr&aacute;tkymi epiz&oacute;dami strnul&yacute;ch poh&#318;adov alebo chradnut&iacute;m. Tieto pr&iacute;znaky pretrv&aacute;vali pri lie&#269;be nieko&#318;ko dn&iacute; alebo t&yacute;&#382;d&#328;ov, ale nakoniec do&scaron;lo k nekoordin&aacute;cii a tonick&yacute;m\/klonick&yacute;m z&aacute;chvatom. V&yacute;skyt a r&yacute;chla progresia neurologick&yacute;ch pr&iacute;znakov po preru&scaron;en&iacute; lie&#269;by boli v&yacute;raznej&scaron;ie, ako po&#269;as lie&#269;by (obr&aacute;zok 2).<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">P&auml;&#357; ma&#269;iek (CT03, CT07, CT10, CT14 a CT16) malo recid&iacute;vu typick&yacute;ch intraabdomin&aacute;lnych l&eacute;zi&iacute; pri absencii neurologick&yacute;ch pr&iacute;znakov po&#269;as alebo po lie&#269;be (tabu&#318;ka 1). U &scaron;tyroch z nich sa vyskytli ileocek&aacute;lne &uacute;tvary (CT03, CT07 a CT14) alebo zv&auml;&#269;&scaron;en&aacute; lymfatick&aacute; uzlina hrub&eacute;ho &#269;reva (CT10), ktor&aacute; sa po prim&aacute;rnej lie&#269;be zmen&scaron;ila (CT03, CT10 a CT14) alebo u&#382; nebola hmatate&#318;n&aacute; (CT07). Av&scaron;ak CT03 na&#271;alej trpela &#357;a&#382;kou z&aacute;pchou, nap&iacute;nan&iacute;m a stolicou podobaj&uacute;cou sa zubnej paste. Z&aacute;va&#382;nos&#357; ob&scaron;trukcie hrub&eacute;ho &#269;reva si vy&#382;iadala resekciu hrub&eacute;ho &#269;reva, ktor&aacute; zmiernila klinick&eacute; pr&iacute;znaky, ale nezabr&aacute;nila pr&iacute;padn&eacute;mu op&auml;tovn&eacute;mu v&yacute;skytu bru&scaron;n&yacute;ch choroby. V&scaron;etky tri ma&#269;ky, u ktor&yacute;ch sa vyskytli siln&eacute; ileo-cek&aacute;lno-kolick&eacute; infiltr&aacute;ty, st&aacute;le vykazovali d&ocirc;kazy o tejto forme FIP pri pitve a <a class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"&lt;div class=glossaryItemBody&gt;&amp;lt;!-- wp:paragraph --&amp;gt;imunohistochemie &ndash; histologick&aacute; metoda, p&#345;i n&iacute;&#382; se ve vy&scaron;et&#345;ovan&eacute;m vzorku tk&aacute;n&#283; prokazuje p&#345;&iacute;tomnost ur&#269;it&yacute;ch antigen&#367; pomoc&iacute; specifick&yacute;ch protil&aacute;tek s nav&aacute;zan&yacute;mi chemick&yacute;mi slou&#269;eninami, kter&eacute; umo&#382;&#328;uj&iacute; jejich pr&#367;kaz nap&#345;. imunoperoxid&aacute;zov&aacute; reakce. Lze nap&#345;. rozli&scaron;it n&#283;kter&eacute; typy bun&#283;k &#269;i prok&aacute;zat n&#283;kter&eacute; chorobn&eacute; zm&#283;ny. Srov. imunofluorescence, histochemie imuno-; histochemie&amp;lt;br\/&amp;gt;&amp;lt;!-- \/wp:paragraph --&amp;gt;&lt;\/div&gt;\" href=\"https:\/\/www.fipwarriors.eu\/en\/glossary\/imunohistochemie\/\" data-mobile-support=\"0\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex=\"0\" role=\"link\">imunohistoch&eacute;mia<\/a> preuk&aacute;zala <a class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"&lt;div class=glossaryItemBody&gt;&amp;lt;!-- wp:paragraph --&amp;gt;&amp;lt;strong&amp;gt;Antigen&amp;lt;\/strong&amp;gt;&nbsp;je l&aacute;tka, kter&aacute; navozuje produkci jedn&eacute; nebo v&iacute;ce&nbsp;protil&aacute;tek. Ka&#382;d&aacute; protil&aacute;tka se v&aacute;&#382;e na specifick&yacute; antigen formou interakce podobn&eacute; zapadnut&iacute; kl&iacute;&#269;e do z&aacute;mku. Antigen m&#367;&#382;e b&yacute;t z vn&#283;j&scaron;&iacute;ho prost&#345;ed&iacute; nebo vznik&aacute; v t&#283;le. Bu&#328;ky imunitn&iacute;ho syst&eacute;mu se sna&#382;&iacute; zni&#269;it nebo neutralizovat jak&yacute;koli antigen, kter&yacute; je rozpozn&aacute;n jako ciz&iacute; a potenci&aacute;ln&#283; &scaron;kodliv&yacute;. Slovo &amp;quot;antigen&amp;quot; vzniklo z term&iacute;nu&nbsp;&amp;lt;strong&amp;gt;anti&amp;lt;\/strong&amp;gt;body&nbsp;&amp;lt;strong&amp;gt;gen&amp;lt;\/strong&amp;gt;erator&amp;lt;sup&amp;gt;[1][2]&amp;lt;\/sup&amp;gt;&nbsp;a popisovalo molekulu, kter&aacute; se specificky v&aacute;&#382;e na protil&aacute;tku. Nyn&iacute; se ale term&iacute;n vztahuje i na v&scaron;echny molekuly nebo molekul&aacute;rn&iacute; fragmenty, kter&eacute; mohou b&yacute;t v&aacute;z&aacute;ny&nbsp;hlavn&iacute;m histokompatibiln&iacute;m komplexem&nbsp;(MHC) a prezentov&aacute;ny T-bun&#283;&#269;n&eacute;mu receptoru.&amp;lt;sup&amp;gt;[3]&amp;lt;\/sup&amp;gt;&nbsp;Vlastn&iacute; antigeny jsou obvykle imunitn&iacute;m syst&eacute;mem tolerov&aacute;ny, zat&iacute;mco ciz&iacute; antigeny jsou identifikov&aacute;ny jako potenci&aacute;ln&#283; nebezpe&#269;n&eacute; a mohou b&yacute;t imunitn&iacute;m syst&eacute;mem napadeny.&amp;lt;br\/&amp;gt;&amp;lt;!-- \/wp:paragraph --&amp;gt;&lt;\/div&gt;\" href=\"https:\/\/www.fipwarriors.eu\/en\/glossary\/antigen\/\" data-mobile-support=\"0\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex=\"0\" role=\"link\">antig&eacute;n<\/a> FIPV v makrof&aacute;goch v granulomat&oacute;znom z&aacute;pale (obr&aacute;zok 9).<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><a href=\"https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2021\/02\/gc376-fig9.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"622\" height=\"469\" src=\"https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2021\/02\/gc376-fig9.jpg\" alt=\"\" class=\"wp-image-5555\" srcset=\"https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2021\/02\/gc376-fig9.jpg 622w, https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2021\/02\/gc376-fig9-300x226.jpg 300w, https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2021\/02\/gc376-fig9-16x12.jpg 16w, https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2021\/02\/gc376-fig9-350x264.jpg 350w, https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2021\/02\/gc376-fig9-64x48.jpg 64w\" sizes=\"auto, (max-width: 622px) 100vw, 622px\"\/><\/a><figcaption>Obr&aacute;zok 9.<br>Rez zo silne zhrubnutej steny resekovan&eacute;ho hrub&eacute;ho &#269;reva z ma&#269;ky CT03. Imunoperoxid&aacute;za (hned&aacute; farba) sfarben&aacute; na ma&#269;ac&iacute; antig&eacute;n v&iacute;rusu infek&#269;nej peritonit&iacute;dy je pozorovan&aacute; v makrof&aacute;goch okolo perif&eacute;rie granulomat&oacute;znej l&eacute;zie. K perzistencii v&iacute;rusu v hrubom &#269;reve do&scaron;lo po&#269;as lie&#269;by a &uacute;stupu &#271;al&scaron;&iacute;ch pr&iacute;znakov ochorenia (napr. efuz&iacute;vnej peritonit&iacute;dy)<\/figcaption><\/figure><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">Pokusy o lie&#269;bu neurologickej choroby zv&yacute;&scaron;en&iacute;m d&aacute;vky lieku a pred&#314;&#382;en&iacute;m trvania lie&#269;by<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Pre zmiernenie neurologick&yacute;ch pr&iacute;znakov sme sa pok&uacute;sili zv&yacute;&scaron;i&#357; d&aacute;vku GC376, &#269;&iacute;m sa zv&yacute;&scaron;ila jeho hladina v krvi a mno&#382;stvo lie&#269;iva, ktor&eacute; pre&scaron;lo cez hematoencefalick&uacute; bari&eacute;ru. Ma&#269;ka CT01 vykazovala ef&uacute;znu FIP a bola p&ocirc;vodne lie&#269;en&aacute; GC376 (10 mg\/kg q12h SC po dobu 9 dn&iacute;). Ma&#269;ka reagovala dobre, ale v 9. de&#328; sa hor&uacute;&#269;ka sa vr&aacute;tila a d&aacute;vka sa zv&yacute;&scaron;ila na 15mg\/kg ka&#382;d&yacute;ch 12 hod&iacute;n po dobu 5 dn&iacute;. Hor&uacute;&#269;ka zmizla a lie&#269;ba bola ukon&#269;en&aacute; v de&#328; 14. O 3 dni nesk&ocirc;r sa hor&uacute;&#269;ka vr&aacute;tila spolu s neur&#269;it&yacute;mi neurologick&yacute;mi pr&iacute;znakmi pozost&aacute;vaj&uacute;cimi zo z&aacute;&scaron;klbu svalov, abnorm&aacute;lneho na&#357;ahovania kon&#269;at&iacute;n a abnorm&aacute;lnych hltac&iacute;ch pohybov. Ma&#269;ke bola okam&#382;ite znovu nasaden&aacute; d&aacute;vka 15 mg\/kg ka&#382;d&yacute;ch 12h SC a jej stav sa zlep&scaron;il, ale kr&aacute;tko potom sa zhor&scaron;il s n&aacute;vratom hor&uacute;&#269;ky a rovnak&yacute;mi neur&#269;it&yacute;mi neurologick&yacute;mi pr&iacute;znakmi s miernou nekoordin&aacute;ciou. D&aacute;vka sa potom zv&yacute;&scaron;ila na 50 mg\/kg ka&#382;d&yacute;ch 12 hod&iacute;n SC po dobu 14 dn&iacute; a jej stav sa zlep&scaron;il na takmer norm&aacute;lny stav. Lie&#269;ba bola zastaven&aacute;, ale okam&#382;ite sa vr&aacute;tili neurologick&eacute; pr&iacute;znaky. Ma&#269;ka bola potom lie&#269;en&aacute; &#271;al&scaron;ie &scaron;tyri dni d&aacute;vkou 50 mg\/kg q12 h SC, po&#269;as ktor&yacute;ch sa neurologick&eacute; pr&iacute;znaky op&auml;&#357; zlep&scaron;ili. Padlo v&scaron;ak rozhodnutie ukon&#269;i&#357; lie&#269;bu &uacute;plne. Stav ma&#269;ky zostal stabiln&yacute; 1 t&yacute;&#382;de&#328; a potom sa u nej rozvinula extr&eacute;mna nekoordin&aacute;cia, demencia a tonick&eacute;\/klonick&eacute; z&aacute;chvaty. Bola vykonan&aacute; eutan&aacute;zia a pitva preuk&aacute;zala l&eacute;zie iba v mozgu.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ma&#269;ka CT12 dobre reagovala na lie&#269;bu d&aacute;vkou 15 mg\/kg q12 h SC; rekt&aacute;lna teplota sa vr&aacute;tila k norm&aacute;lu do 48 hod&iacute;n a bru&scaron;n&yacute; v&yacute;potok zmizol do 2 t&yacute;&#382;d&#328;ov. Ma&#269;ka sa po druhom t&yacute;&#382;dni lie&#269;by javila ako norm&aacute;lna, potom v&scaron;ak mala pretrv&aacute;vaj&uacute;cu hor&uacute;&#269;ku 38,9&ndash;40&deg;C. Majitelia c&iacute;tili, &#382;e ma&#269;ka m&aacute; inak norm&aacute;lnu aktivitu a chu&#357; k jedlu, tak&#382;e lie&#269;ba pokra&#269;ovala v rovnakom d&aacute;vkovan&iacute;. Hor&uacute;&#269;ka v&scaron;ak pretrv&aacute;vala, boli zaznamenan&eacute; jemn&eacute; pr&iacute;znaky zmeny spr&aacute;vania a ma&#269;ka ner&aacute;stla pod&#318;a o&#269;ak&aacute;vania. Ma&#269;ka pokra&#269;ovala v lie&#269;be &#271;al&scaron;&iacute;ch 15 t&yacute;&#382;d&#328;ov, po&#269;as ktor&yacute;ch sa d&aacute;vka lie&#269;iva prechodne dvakr&aacute;t zni&#382;ovala (tj. na 10 mg\/kg ka&#382;d&yacute;ch 12 hod&iacute;n a 15 mg\/kg ka&#382;d&yacute;ch 24 hod&iacute;n) po&#269;as nieko&#318;k&yacute;ch dn&iacute;, hor&uacute;&#269;ka sa v&scaron;ak zv&yacute;&scaron;ila a zaka&#382;d&yacute;m sa zn&iacute;&#382;ila aktivita. Obnovilo sa d&aacute;vkovanie 15mg\/kg ka&#382;d&yacute;ch 12 hod&iacute;n. Ma&#269;ka na&#271;alej vykazovala pr&iacute;znaky premenlivej hor&uacute;&#269;ky a nejasn&eacute; pr&iacute;znaky spr&aacute;vania, ale majitelia boli optimistick&iacute;, pokia&#318; ide o apet&iacute;t a &uacute;rove&#328; aktivity ma&#269;ky. Lie&#269;ba ma&#269;ky bola potom zastaven&aacute;, preto&#382;e &#271;al&scaron;ie pou&#382;itie lieku na tento &uacute;&#269;el nebolo mo&#382;n&eacute; od&ocirc;vodni&#357;. Stav ma&#269;ky zostal nezmenen&yacute; s pretrv&aacute;vaj&uacute;cou hor&uacute;&#269;kou, samot&aacute;rskym spr&aacute;van&iacute;m a zastaven&iacute;m rastu &#271;al&scaron;&iacute;ch 5 t&yacute;&#382;d&#328;ov. V 22. t&yacute;&#382;dni sa objavili z&aacute;va&#382;n&eacute; neurologick&eacute; pr&iacute;znaky pozost&aacute;vaj&uacute;ce z nekoordin&aacute;cie, demencie a z&aacute;chvatov a ma&#269;ka bola eutanizovan&aacute;. Makroskopick&eacute; i mikroskopick&eacute; l&eacute;zie boli obmedzen&eacute; na mozog.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Testovanie na vznik v&iacute;rusovej rezistencie<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">O vzniku v&iacute;rusu rezistentn&eacute;ho na lie&#269;ivo sa uva&#382;ovalo u ma&#269;ky CT03, u ktorej do&scaron;lo k relapsu s bru&scaron;n&yacute;mi l&eacute;ziami po po&#269;iato&#269;nej priaznivej reakcii na lie&#269;bu granulomat&oacute;znej kolit&iacute;dy a zmie&scaron;anej FIP. V &#269;ase pitvy boli v bru&scaron;nej dutine st&aacute;le pr&iacute;tomn&eacute; granulomat&oacute;zne l&eacute;zie a v mozgu sa nena&scaron;li &#382;iadne makroskopick&eacute; ani mikroskopick&eacute; l&eacute;zie (tabu&#318;ka 1). Preto recid&iacute;va ochorenia nes&uacute;visela s neurologick&yacute;m ochoren&iacute;m a perzistentn&yacute; antig&eacute;n FIPV bol identifikovan&yacute; v makrof&aacute;goch v granulomat&oacute;znych l&eacute;zi&aacute;ch. Uskuto&#269;nilo sa sekven&#269;n&eacute; porovnanie medzi 3CLpro z ef&uacute;zie pred lie&#269;bou a z omenta odobrat&yacute;m pri pitve o 95 dn&iacute; nesk&ocirc;r. V 3CLpro sa v&scaron;ak nena&scaron;la &#382;iadna substit&uacute;cia aminokysel&iacute;n, &#269;o nazna&#269;uje, &#382;e v&yacute;skyt v&iacute;rusu rezistentn&eacute;ho na lie&#269;iv&aacute; nebol pr&iacute;&#269;inou opakovan&eacute;ho ochorenia ma&#269;ky.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Porovn&aacute;vali sa tie&#382; 3CLpro sekvencie v&iacute;rusovej RNA pred lie&#269;bou s t&yacute;mi, ktor&eacute; boli z&iacute;skan&eacute; o 25 dn&iacute; (CT16), 139 dn&iacute; (CT02), 149 dn&iacute; (CT12) a 231 dn&iacute; (CT10) nesk&ocirc;r v &#269;ase pitvy. V tomto obdob&iacute; neboli pozorovan&eacute; &#382;iadne rozdiely v 3CLpro. Sekvencie tie&#382; zostali nezmenen&eacute; u CT02, CT16 a CT12 od &#269;asu prijatia a&#382; po pitvu. V&iacute;rusov&aacute; 3CLpro z p&#318;&uacute;c a sleziny ma&#269;ky CT10, ktor&aacute; relapsovala dvakr&aacute;t po&#269;as 8 mesiacov a bola znovu lie&#269;en&aacute;, vykazovala substit&uacute;ciu Asp-to-Ser v polohe 25 a substit&uacute;ciu Lys-to-Asp v polohe 260 v porovnan&iacute; s v&iacute;rusom z abdomin&aacute;lnej kvapaliny z&iacute;skanej pred lie&#269;bou. Presn&eacute; &uacute;&#269;inky t&yacute;chto mut&aacute;ci&iacute; na funkciu prote&aacute;zy sa v s&uacute;&#269;asnosti sk&uacute;maj&uacute;. Uv&aacute;dza sa, &#382;e genetick&aacute; evol&uacute;cia kv&aacute;zi druhov v&iacute;rusov&yacute;ch prote&iacute;nov nast&aacute;va v priebehu &#269;asu u pacientov chronicky infikovan&yacute;ch RNA v&iacute;rusom (HCV) a m&ocirc;&#382;e vies&#357; k sporadick&yacute;m zmen&aacute;m aminokysel&iacute;n.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">V&yacute;skyt trval&yacute;ch klinick&yacute;ch remisi&iacute;<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Sedem z 20 ma&#269;iek v &scaron;t&uacute;dii lie&#269;by GC376, z ktor&yacute;ch v&scaron;etky absolvovali najmenej 12 t&yacute;&#382;d&#328;ov nepretr&#382;itej lie&#269;by, bolo kategorizovan&yacute;ch ako potenci&aacute;lne lie&#269;ebn&eacute; &uacute;spechy na z&aacute;klade viac ako 12 t&yacute;&#382;d&#328;ov trvaj&uacute;cej remisie choroby po ukon&#269;en&iacute; lie&#269;by (Obr&aacute;zok 2). &Scaron;es&#357; z t&yacute;chto ma&#269;iatok malo vo veku 3,3&ndash;4,4 mesiaca ak&uacute;tnu ef&uacute;znu bru&scaron;n&uacute; (CT15, CT17, CT18, CT21, CT23) alebo pleur&aacute;lnu (CT20) formu ochorenia a boli lie&#269;en&eacute; nepretr&#382;ite 12 alebo 17 (ma&#269;ka CT21) t&yacute;&#382;d&#328;ov (tabu&#318;ka 1, obr&aacute;zok 2). Siedma ma&#269;ka (CT04), 6,8-ro&#269;n&yacute; kr&iacute;&#382;en&yacute; kastrovan&yacute; koc&uacute;r so suchou FIP obmedzenou na mezenterick&uacute; lymfatick&uacute; uzlinu, tie&#382; dosiahol dlhodob&uacute; remisiu, ale a&#382; po &scaron;tyroch cykloch lie&#269;by so zvy&scaron;uj&uacute;cim sa trvan&iacute;m (Tabu&#318;ka 1, Obr&aacute;zok 2).<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&Scaron;es&#357; z t&yacute;chto dlhodobo pre&#382;iv&scaron;&iacute;ch ma&#269;iek malo na za&#269;iatku lie&#269;by abnormality v CBC, hematokrite a celkov&yacute;ch prote&iacute;noch, ale v &#269;ase ukon&#269;enia lie&#269;by mali &uacute;plne norm&aacute;lne hodnoty v krvi. Av&scaron;ak ma&#269;ka CT21 mala aj po 12 t&yacute;&#382;d&#328;och zv&yacute;&scaron;en&eacute; hladiny bielkov&iacute;n v plazme a zv&yacute;&scaron;en&yacute; po&#269;et bielych krviniek a v lie&#269;be pokra&#269;ovala &#271;al&scaron;&iacute;ch 5 t&yacute;&#382;d&#328;ov. Po&#269;ty plazmatick&yacute;ch bielkov&iacute;n a bielych krviniek sa zlep&scaron;ili po &#271;al&scaron;&iacute;ch 5 t&yacute;&#382;d&#328;och lie&#269;by, st&aacute;le v&scaron;ak neboli v referen&#269;nom rozsahu. Trin&aacute;s&#357; t&yacute;&#382;d&#328;ov po ukon&#269;en&iacute; lie&#269;by sa u ma&#269;ky vyvinul typick&yacute; FIP v&yacute;potok v hrudnej dutine s hor&uacute;&#269;kou. Tekutina z hrudn&iacute;ka bola odsat&aacute;, aby sa zlep&scaron;ilo d&yacute;chanie, a ma&#269;ka za&#269;ala s druh&yacute;m kolom GC376 a v &#269;ase p&iacute;sania &#269;l&aacute;nku bola afebriln&aacute;, akt&iacute;vna a po 8 t&yacute;&#382;d&#328;och lie&#269;by jedla norm&aacute;lne. Lie&#269;ba bude trva&#357; 12 t&yacute;&#382;d&#328;ov, ak sa znova neobjavia &#382;iadne zn&aacute;mky ochorenia.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Ved&#318;aj&scaron;ie &uacute;&#269;inky pozorovan&eacute; po&#269;as lie&#269;by a po lie&#269;be<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Po&#269;as a po lie&#269;be GC376 boli pozorovan&eacute; dva ved&#318;aj&scaron;ie &uacute;&#269;inky. Liek pri injek&#269;nej aplik&aacute;cii &#269;asto sp&ocirc;soboval &scaron;t&iacute;panie\/p&aacute;lenie. Subkut&aacute;nne opuchy sa vyskytli, ke&#271; sa v rovnakom mieste aplikovalo pr&iacute;li&scaron; ve&#318;a injekci&iacute;, ale tie r&yacute;chlo ust&uacute;pili. U jednej ma&#269;ky (CT12) sa pribli&#382;ne v 14. t&yacute;&#382;dni 18-t&yacute;&#382;d&#328;ov&eacute;ho obdobia lie&#269;by vyskytla hlboko lokalizovan&aacute; ulcer&aacute;cia medzi lopatkami. Pri pitve v&scaron;ak nebol pozorovan&yacute; &#382;iadny d&ocirc;kaz derm&aacute;lnej FIP a i&scaron;lo pravdepodobne o reakciu na nepretr&#382;it&eacute; injekcie v rovnakom mieste. Prieskum siedmich dlhodobo pre&#382;iv&scaron;&iacute;ch ma&#269;iek preuk&aacute;zal cite&#318;n&eacute; ohniskov&eacute; podko&#382;n&eacute; zhrubnutie. U jednej ma&#269;ky sa na r&ouml;ntgenov&yacute;ch sn&iacute;mkach objavili &scaron;tyri zv&aacute;penaten&eacute; hr&#269;ky ve&#318;kosti hr&aacute;&scaron;ku. Tieto hr&#269;ky boli chirurgicky odstr&aacute;nen&eacute; spolu s okolit&yacute;m fibrotick&yacute;m tkanivom. Traja &#271;al&scaron;&iacute; dlhodobo pre&#382;iv&scaron;&iacute; maj&uacute; 1&ndash;3 mal&eacute; ohniskov&eacute; oblasti s trvalou stratou chlpov v miestach vpichu, ktor&eacute; s&uacute; zakryt&eacute; okolit&yacute;m srs&#357;ou (obr&aacute;zok 10). Majitelia a ich veterin&aacute;ri boli po&#382;iadan&iacute;, aby tieto l&eacute;zie pravidelne kontrolovali kv&ocirc;li pr&iacute;padn&yacute;m zmen&aacute;m, &#269;i v&yacute;skytu nov&yacute;ch l&eacute;zi&iacute;.<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><a href=\"https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2021\/02\/gc376-fig10.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"618\" height=\"503\" src=\"https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2021\/02\/gc376-fig10.jpg\" alt=\"\" class=\"wp-image-5568\" srcset=\"https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2021\/02\/gc376-fig10.jpg 618w, https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2021\/02\/gc376-fig10-300x244.jpg 300w, https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2021\/02\/gc376-fig10-16x12.jpg 16w, https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2021\/02\/gc376-fig10-350x285.jpg 350w, https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2021\/02\/gc376-fig10-64x52.jpg 64w\" sizes=\"auto, (max-width: 618px) 100vw, 618px\"\/><\/a><figcaption>Obr&aacute;zok 10.<br>Ohniskov&aacute; oblas&#357; permanentn&eacute;ho vypad&aacute;vania chlpov sp&ocirc;soben&aacute; nechcen&yacute;m ukladan&iacute;m GC376 do epidermy ma&#269;ky CT21. Tieto oblasti boli zvy&#269;ajne prekryt&eacute; chlpmi a neboli zvonka vidite&#318;n&eacute;<\/figcaption><\/figure><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Najv&yacute;znamnej&scaron;&iacute;m ved&#318;aj&scaron;&iacute;m &uacute;&#269;inkom spojen&yacute;m s dlhodobou lie&#269;bou bol juveniln&yacute; chrup. Norm&aacute;lna tvorba, rast a prerezanie trval&yacute;ch zubov sa oneskorili u v&scaron;etk&yacute;ch &scaron;tyroch lie&#269;en&yacute;ch ma&#269;iatok vo veku 3,3&ndash;4,4 mesiaca. O&#269;n&eacute; zuby, rez&aacute;ky, &scaron;tvrt&yacute; premol&aacute;r a mol&aacute;r boli postihnut&eacute; najmenej, zatia&#318; &#269;o druh&yacute; a tret&iacute; premol&aacute;r boli postihnut&eacute; najviac (obr&aacute;zok 11). Dospel&eacute; zuby sa javili men&scaron;ie ako normlingv&aacute;lne a to spolu s oneskoren&yacute;m prerezan&iacute;m viedlo bu&#271; k ponechaniu mlie&#269;nych &scaron;pi&#269;&aacute;kov, nevypadnutiu mlie&#269;nych zubov alebo k &#269;iasto&#269;n&eacute;mu prerezaniu abnorm&aacute;lnych trval&yacute;ch zubov k s&uacute;&#269;asne ponechan&yacute;m mlie&#269;nym zubom. U &#382;iadneho z dlhodobo pre&#382;iv&scaron;&iacute;ch neboli pozorovan&eacute; &#382;iadne in&eacute; anatomick&eacute; alebo fyziologick&eacute; defekty a neboli zaznamenan&eacute; ani u pitvan&yacute;ch ma&#269;iek.<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><a href=\"https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2021\/02\/gc376-fig11.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"618\" height=\"464\" src=\"https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2021\/02\/gc376-fig11.jpg\" alt=\"\" class=\"wp-image-5570\" srcset=\"https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2021\/02\/gc376-fig11.jpg 618w, https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2021\/02\/gc376-fig11-300x225.jpg 300w, https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2021\/02\/gc376-fig11-16x12.jpg 16w, https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2021\/02\/gc376-fig11-350x263.jpg 350w, https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2021\/02\/gc376-fig11-64x48.jpg 64w\" sizes=\"auto, (max-width: 618px) 100vw, 618px\"\/><\/a><figcaption>Ob&aacute;zok 11.<br>Dospel&yacute; chrup ma&#269;ky CT17, ktor&aacute; bola lie&#269;en&aacute; 12 t&yacute;&#382;d&#328;ov GC376, po&#269;n&uacute;c vekom 4,4 mesiaca. Je vidite&#318;n&yacute; ponechan&yacute; horn&yacute; &#318;av&yacute; mlie&#269;ny &scaron;pi&#269;&aacute;k. Zd&aacute; sa, &#382;e horn&yacute; druh&yacute; a tret&iacute; premol&aacute;r s&uacute; mlie&#269;ne. Mal&eacute; trval&eacute; tretie premol&aacute;re sa &#269;iasto&#269;ne prerezali lingv&aacute;lne k mlie&#269;nym tret&iacute;m horn&yacute;m premol&aacute;rom. Gingiva obklopuj&uacute;ca ponechan&yacute; &scaron;pi&#269;&aacute;k a premol&aacute;re je zap&aacute;len&aacute;. Dospel&eacute; &scaron;pi&#269;&aacute;ky sa javia tie&#382; men&scaron;ie ako zvy&#269;ajne. Zd&aacute; sa, &#382;e trval&yacute; prav&yacute; &scaron;pi&#269;&aacute;k a &scaron;tvrt&yacute; horn&yacute; premol&aacute;r sa prerezali norm&aacute;lne<\/figcaption><\/figure><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">Pitevn&eacute; n&aacute;lezy<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Tel&aacute; 12\/13 ma&#269;iek, u ktor&yacute;ch lie&#269;ba nebola &uacute;spe&scaron;n&aacute;, boli podroben&eacute; pitve vr&aacute;tane hrub&eacute;ho a histologick&eacute;ho vy&scaron;etrenia a imunohistoch&eacute;mie postihnut&yacute;ch tkan&iacute;v pre FIPV antig&eacute;n. Odobran&eacute; a vy&scaron;etren&eacute; tkaniv&aacute; zah&#341;&#328;ali reprezentat&iacute;vne rezy v&scaron;etk&yacute;ch hlavn&yacute;ch bru&scaron;n&yacute;ch a hrudn&yacute;ch org&aacute;nov, mozgu a o&#269;&iacute;. Hrub&eacute; vy&scaron;etrenie identifikovalo tri odli&scaron;n&eacute; prezent&aacute;cie. P&auml;&#357; ma&#269;iek nejavilo v&yacute;razn&eacute; zn&aacute;mky akt&iacute;vnej FIP (CT01, CT02, CT05, CT08, C12), tri mali l&eacute;zie zodpovedaj&uacute;ce neef&uacute;znej FIP (CT07, CT10, CT13) a &scaron;tyri mali ef&uacute;znu peritonit&iacute;du s multiorg&aacute;nov&yacute;m postihnut&iacute;m (CT03, CT14, CT16, CT22). Histol&oacute;gia piatich ma&#269;iek, ktor&eacute; nevykazovali dostato&#269;n&eacute; d&ocirc;kazy o chorobe, preuk&aacute;zala v&auml;&#269;&scaron;inou mierne mononukle&aacute;rne infiltr&aacute;ty, zvy&#269;ajne perivaskul&aacute;rny z&aacute;pal v oku, pe&#269;eni, &#269;revnej stene a obli&#269;k&aacute;ch. Tri ma&#269;ky s neef&uacute;znou FIP mali mierny a&#382; z&aacute;va&#382;n&yacute; z&aacute;pal v mnoh&yacute;ch org&aacute;noch s naj&#357;a&#382;&scaron;&iacute;mi l&eacute;ziami v oku, mezenterick&yacute;ch lymfatick&yacute;ch uzlin&aacute;ch, obli&#269;k&aacute;ch a p&#318;&uacute;cach. Tri ma&#269;ky s ef&uacute;znou FIP mali z&aacute;va&#382;n&yacute; pyogranulomat&oacute;zny z&aacute;pal vo viacer&yacute;ch bru&scaron;n&yacute;ch org&aacute;noch vr&aacute;tane omenta, pobru&scaron;nice, &#269;revnej steny, mezenterick&yacute;ch lymfatick&yacute;ch uzl&iacute;n, pe&#269;ene a sleziny.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Z&aacute;va&#382;n&yacute; z&aacute;pal typick&yacute; pre cerebr&aacute;lnu FIP bol pr&iacute;tomn&yacute; v mozgu v&scaron;etk&yacute;ch okrem jednej (CT07) z &ocirc;smich ma&#269;iek, ktor&eacute; sa podrobili pitve bez v&yacute;razn&yacute;ch hrub&yacute;ch zn&aacute;mok FIP alebo s neef&uacute;znou FIP. Jedna ma&#269;ka bez charakteristick&yacute;ch mozgov&yacute;ch l&eacute;zi&iacute; mala &#357;a&#382;k&yacute; mozgov&yacute; ed&eacute;m. Naproti tomu typick&eacute; FIP l&eacute;zie ch&yacute;bali v mozgu v&scaron;etk&yacute;ch troch pitvan&yacute;ch ma&#269;iek s ef&uacute;znou FIP. Stereotypn&eacute; FIP l&eacute;zie mozgu boli charakterizovan&eacute; stredne &#357;a&#382;kou a&#382; &#357;a&#382;kou chronickou meningoencefalit&iacute;dou a ventrikulit&iacute;dou spojenou s periventrikul&aacute;rnou nekr&oacute;zou parench&yacute;mu (obr&aacute;zok 12a). &Scaron;tvrt&aacute; komora bola postihnut&aacute; naj&#357;a&#382;&scaron;ie a meningit&iacute;da bola naj&#269;astej&scaron;ie pozorovan&aacute; ventr&aacute;lne do mal&eacute;ho mozgu a mozgov&eacute;ho kme&#328;a. &#268;asto sa pozorovali siln&eacute; perivaskul&aacute;rne man&#382;ety spojen&eacute; s <a class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"&lt;div class=glossaryItemBody&gt;&amp;lt;!-- wp:paragraph --&amp;gt;Vaskulit&iacute;da je v&scaron;eobecn&yacute; n&aacute;zov pre z&aacute;pal ciev. V sten&aacute;ch t&yacute;chto ciev sp&ocirc;sobuje toto ochorenie r&ocirc;zne patologick&eacute; zmeny vr&aacute;tane zhrubnutia, oslabenia, z&uacute;&#382;enia alebo zjazvenia. Pod tento pojem zah&#341;&#328;ame mnoho typov t&yacute;chto z&aacute;palov, ktor&eacute; sa l&iacute;&scaron;ia svojimi prejavmi, pr&iacute;&#269;inami a nebezpe&#269;nos&#357;ou.&amp;lt;br\/&amp;gt;&amp;lt;!-- \/wp:paragraph --&amp;gt;&lt;\/div&gt;\" href=\"https:\/\/www.fipwarriors.eu\/en\/glossary\/vaskulitida\/\" data-mobile-support=\"0\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex=\"0\" role=\"link\">vaskulit&iacute;dou<\/a>. FIP antig&eacute;n sa demon&scaron;troval imunoperoxid&aacute;zov&yacute;m zafarben&iacute;m v mozgu 6\/7 pr&iacute;padov stereotypnej cerebr&aacute;lnej FIP (obr&aacute;zok 12b). Tkaniv&aacute; z 11 pitvan&yacute;ch ma&#269;iek, sa testovali na pr&iacute;tomnos&#357; FIPV RNA pomocou qRT-PCR. V&scaron;etky vyk&aacute;zali pozit&iacute;vny v&yacute;sledok, &#269;&iacute;m sa stanovila perzistencia v&iacute;rusu u ma&#269;iek, u ktor&yacute;ch lie&#269;ba nebola &uacute;spe&scaron;n&aacute;.<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><a href=\"https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2021\/02\/gc376-fig12.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"616\" height=\"895\" src=\"https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2021\/02\/gc376-fig12.jpg\" alt=\"\" class=\"wp-image-5573\" srcset=\"https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2021\/02\/gc376-fig12.jpg 616w, https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2021\/02\/gc376-fig12-206x300.jpg 206w, https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2021\/02\/gc376-fig12-413x600.jpg 413w, https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2021\/02\/gc376-fig12-8x12.jpg 8w, https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2021\/02\/gc376-fig12-350x509.jpg 350w, https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2021\/02\/gc376-fig12-64x93.jpg 64w\" sizes=\"auto, (max-width: 616px) 100vw, 616px\"\/><\/a><figcaption>Obr&aacute;zok 12.<br>Fotomikrografy l&eacute;zie v mozgu ma&#269;ky CT08. U tejto ma&#269;ky sa po&#269;as po&#269;iato&#269;nej lie&#269;by GC376 vyskytlo z&aacute;va&#382;n&eacute; neurologick&eacute; ochorenie. (a) &Scaron;tvrt&aacute; komora obsahuje bielkovinov&uacute; tekutinu zmie&scaron;an&uacute; s po&#269;etn&yacute;mi neutrofilmi a makrof&aacute;gmi, ktor&eacute; multifok&aacute;lne zasahuj&uacute; do okolit&eacute;ho zrieden&eacute;ho neuropilu. Ve&#318;k&eacute; man&#382;ety lymfocytov a plazmatick&yacute;ch buniek obklopuj&uacute; krvn&eacute; cievy (*) (farbenie hematoxyl&iacute;nom, zv&auml;&#269;&scaron;enie 20x). (b) Viacer&eacute; bunky pripom&iacute;naj&uacute;ce peritone&aacute;lne <a class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"&lt;div class=glossaryItemBody&gt;Makrof&aacute;g je bu&#328;ka p&#345;irozen&eacute; imunity, kter&aacute; hraje velmi d&#367;le&#382;itou roli v imunitn&iacute; reakci. Jedn&aacute; se o z&aacute;stupce mononukle&aacute;r&#367;, tj. bun&#283;k s jedn&iacute;m, nesegmentovan&yacute;m j&aacute;drem.Makrof&aacute;g vznik&aacute; p&#345;em&#283;nou z monocyt&#367;. Ty jsou tvo&#345;eny v kostn&iacute; d&#345;eni z kmenov&eacute; hemopoetick&eacute; bu&#328;ky a jsou vyplavov&aacute;ny do krevn&iacute;ho ob&#283;hu. Monocyty koluj&iacute; v krvi asi 8 hodin, pot&eacute; vstupuj&iacute; do tk&aacute;n&iacute; a tam se m&#283;n&iacute; na makrof&aacute;gy. Tk&aacute;&#328;ov&eacute; makrof&aacute;gy pak vykazuj&iacute; &#269;etnou heterogenitu v z&aacute;vislosti na tk&aacute;ni. Mezi tk&aacute;&#328;ov&eacute; makrof&aacute;gy pat&#345;&iacute; Kupfferovy bu&#328;ky, histiocyty, osteoklasty &#269;i mikroglie.Aby se monocyt p&#345;em&#283;nil na makrof&aacute;g, mus&iacute; prob&#283;hnout n&#283;kolik krok&#367;. Zv&#283;t&scaron;uje se velikost bu&#328;ky, zvy&scaron;uje se po&#269;et lysozom&#367;, receptor&#367; pro imunoglobulin IgG a zvy&scaron;uje se jeho schopnost fagocyt&oacute;zy.Z&aacute;kladn&iacute; funkc&iacute; makrof&aacute;gu je fagocyt&oacute;za. K dal&scaron;&iacute;m funkc&iacute;m pat&#345;&iacute; prezentace antigenu T-lymfocyt&#367;m, &#345;&iacute;zen&iacute; hemopo&eacute;zy, hemost&aacute;zy a hojen&iacute; ran, regulace z&aacute;n&#283;tu, destrukce mikroorganism&#367;, odstra&#328;ov&aacute;n&iacute; mrtv&yacute;ch bun&#283;k a cytotoxick&aacute; reakce.&lt;\/div&gt;\" href=\"https:\/\/www.fipwarriors.eu\/en\/glossary\/makrofag\/\" data-mobile-support=\"0\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex=\"0\" role=\"link\">makrof&aacute;gy<\/a> (vyzna&#269;en&aacute; mal&aacute; oblas&#357; na obr&aacute;zku 12a) vykazuj&uacute; pozit&iacute;vnu imunoreaktivitu pre ma&#269;ac&iacute; infek&#269;n&yacute; antig&eacute;n peritonit&iacute;dy (kontrastn&eacute; farbivo hematoxyl&iacute;n, zv&auml;&#269;&scaron;enie 600x).<\/figcaption><\/figure><\/div>\n\n\n\n<h2 class=\"lm-underscore wp-block-heading\">Diskusia<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">&Uacute;spech v lie&#269;be GC376 pri experiment&aacute;lnej infekcii FIPV n&aacute;s motivoval k presk&uacute;maniu &uacute;&#269;innosti GC376 pri prirodzene vyvinutej FIP. Medzi experiment&aacute;lnou ef&uacute;znou bru&scaron;nou FIP a prirodzene sa vyskytuj&uacute;cou chorobou existuj&uacute; v&yacute;znamn&eacute; rozdiely. Experiment&aacute;lna choroba obch&aacute;dza kritick&eacute; po&#269;iato&#269;n&eacute; &scaron;t&aacute;dium, ktor&eacute; za&#269;&iacute;na u ma&#269;iatok vystaven&iacute;m ne&scaron;kodn&eacute;mu ma&#269;aciemu enterick&eacute;mu koronav&iacute;rusu (FECV). Prirodzene sa vyskytuj&uacute;ca FIP je v&yacute;sledkom &scaron;pecifick&yacute;ch mutantov, ktor&eacute; vznikaj&uacute; po infekcii FECV, a FIP sa vyskytuje za pr&iacute;tomnosti <a class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"&lt;div class=glossaryItemBody&gt;Imunita v imunologii ozna&#269;uje schopnost organismu br&aacute;nit se proti antigen&#367;m poch&aacute;zej&iacute;c&iacute;m jak z vn&#283;j&scaron;&iacute;ho prost&#345;ed&iacute;, tak z prost&#345;ed&iacute; z pohledu organismu vnit&#345;n&iacute;ho. V praxi se antigeny mysl&iacute; zejm&eacute;na bu&#328;ky patogenn&iacute;ch organizm&#367;, viry &#269;i t&#345;eba n&aacute;dorov&eacute; bu&#328;ky.&lt;\/div&gt;\" href=\"https:\/\/www.fipwarriors.eu\/en\/glossary\/imunita\/\" data-mobile-support=\"0\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex=\"0\" role=\"link\">imunity<\/a> vo&#269;i FECV. Experiment&aacute;lna FIP je naopak indukovan&aacute; u ma&#269;iek, ktor&eacute; sa nestretli s koronav&iacute;rusom intraperitone&aacute;lnou injekciou ve&#318;kej d&aacute;vky purifikovan&eacute;ho FIPV z&iacute;skan&eacute;ho od laborat&oacute;rnej ma&#269;ky. Prirodzene sa vyskytuj&uacute;ca choroba je &#269;asto subklinick&aacute; po mnoho t&yacute;&#382;d&#328;ov alebo mesiacov pred pozorovan&iacute;m vonkaj&scaron;&iacute;ch pr&iacute;znakov choroby, zatia&#318; &#269;o experiment&aacute;lne pr&iacute;znaky choroby sa objavia do 2&ndash;4 t&yacute;&#382;d&#328;ov a r&yacute;chlo progreduj&uacute;. Prirodzene sa vyskytuj&uacute;ca FIP m&aacute; r&ocirc;zne klinick&eacute; formy, zatia&#318; &#269;o experiment&aacute;lna infekcia m&aacute; takmer v&#382;dy abdomin&aacute;lnu ef&uacute;znu podobu. FIP v pr&iacute;rode je tie&#382; ovplyvnen&aacute; prostred&iacute;m chorobu zvy&scaron;uj&uacute;cich kofaktorov, zatia&#318; &#269;o experiment&aacute;lne ochorenie sa vyskytuje u ma&#269;iek bez vonkaj&scaron;&iacute;ch vplyvov. Rozdiely m&ocirc;&#382;u vysvet&#318;ova&#357;, pre&#269;o sa choroba vyvinie len u malej &#269;asti ma&#269;iek prirodzene vystaven&yacute;ch FIPV, zatia&#318; &#269;o 80&ndash;100% experiment&aacute;lne infikovan&yacute;ch ma&#269;iek zomiera. Na&scaron;e predpovede sa uk&aacute;zali ako spr&aacute;vne a prirodzene sa vyskytuj&uacute;ca FIP sa lie&#269;ila ove&#318;a &#357;a&#382;&scaron;ie ako experiment&aacute;lna choroba. Je v&scaron;ak potrebn&eacute; zd&ocirc;razni&#357;, &#382;e tento pokus by nebol schv&aacute;len&yacute; bez inform&aacute;ci&iacute; z&iacute;skan&yacute;ch z farmakokinetick&yacute;ch &scaron;t&uacute;di&iacute;, &scaron;t&uacute;di&iacute; ak&uacute;tnej a chronickej toxicity a &uacute;&#269;innosti uskuto&#269;&#328;ovan&yacute;ch na laborat&oacute;rnych ma&#269;k&aacute;ch.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Bol to prv&yacute; pokus o pou&#382;itie cielen&eacute;ho antiv&iacute;rusov&eacute;ho lieku proti syst&eacute;mov&eacute;mu a vysoko smrte&#318;n&eacute;mu veterin&aacute;rne v&yacute;znamn&eacute;mu ochoreniu. Aj ke&#271; zatia&#318; nie s&uacute; k dispoz&iacute;cii &#382;iadne &scaron;pecifick&eacute; antiv&iacute;rusov&eacute; lieky na koronav&iacute;rusov&eacute; infekcie u &#318;ud&iacute; alebo zvierat, na lie&#269;bu boli vyvinut&eacute; antiv&iacute;rusov&eacute; lieky na in&eacute; v&iacute;rusov&eacute; infekcie &#318;ud&iacute;, ako s&uacute; HCV a HIV-1, a pou&#382;itie t&yacute;chto liekov poskytlo sol&iacute;dny z&aacute;klad pre ich aplik&aacute;ciu na choroby zvierat, ako je FIP. HCV infikuje hlavne pe&#269;e&#328;ov&eacute; bunky a u v&auml;&#269;&scaron;iny &#318;ud&iacute; sp&ocirc;sobuje pretrv&aacute;vaj&uacute;cu v&iacute;rusov&uacute; infekciu. Av&scaron;ak len asi u 20&ndash;30% z nich sa rozvin&uacute; ochorenia pe&#269;ene v &#269;asovom horizonte 20&ndash;30 rokov. Infekciu HCV je mo&#382;n&eacute; eliminova&#357; ne&scaron;pecifickou antiv&iacute;rusovou lie&#269;bou (interfer&oacute;n a ribavir&iacute;n) po dobu 6&ndash;12 mesiacov u pribli&#382;ne polovice pacientov a ned&aacute;vnym zaveden&iacute;m priamo p&ocirc;sobiacich antiv&iacute;rusov&yacute;ch liekov v trvan&iacute; 3&ndash;6 mesiacov sa po&#269;as lie&#269;by podstatne zv&yacute;&scaron;ila miera vylie&#269;enia na viac ako 90% . HIV infekcia u &#318;ud&iacute; vedie k pred&#314;&#382;en&eacute;mu asymptomatick&eacute;mu stavu a nakoniec k pokro&#269;il&eacute;mu ochoreniu na HIV. HIV-1 infikuje T lymfocyty a makrof&aacute;gy a pre&#382;&iacute;va v latentnom stave. Viac ako 30 antiretrov&iacute;rusov&yacute;ch liekov, z ktor&yacute;ch v&auml;&#269;&scaron;ina sa pou&#382;&iacute;va v kombin&aacute;cii dvoch alebo viacer&yacute;ch liekov, sa &uacute;spe&scaron;ne pou&#382;ilo na zn&iacute;&#382;enie v&iacute;rusovej z&aacute;&#357;a&#382;e na nedetegovate&#318;n&uacute; hladinu v krvi pacientov s HIV\/AIDS. V&iacute;rus sa v&scaron;ak po preru&scaron;en&iacute; antiv&iacute;rusovej lie&#269;by vracia a vy&#382;aduje tak celo&#382;ivotn&uacute; antiv&iacute;rusov&uacute; lie&#269;bu. &Scaron;&iacute;renie v&iacute;rusu do mozgu, ktor&eacute; je sprostredkovan&eacute; hlavne v&iacute;rusom infikovan&yacute;mi makrof&aacute;gmi, a n&aacute;sledn&yacute; v&yacute;voj neurologick&eacute;ho ochorenia sa vyskytuje u viac ako 50% infekci&iacute; HIV. Neurologick&eacute; zhor&scaron;enie preto st&aacute;le zost&aacute;va d&ocirc;le&#382;it&yacute;m probl&eacute;mom aj v tejto dobe antiv&iacute;rusovej lie&#269;by. Tieto precedensy antiv&iacute;rusovej lie&#269;by infekci&iacute; HCV a HIV-1 ukazuj&uacute;, &#382;e v&yacute;sledok lie&#269;by (v&iacute;rusov&yacute; kl&iacute;rens vs perzistencia v&iacute;rusu), trvanie lie&#269;by (kone&#269;n&aacute; vs kontinu&aacute;lna) a pr&iacute;tomnos&#357; neurologick&yacute;ch n&aacute;sledkov s&uacute; v&yacute;razne ovplyvnen&eacute; v&iacute;rusovou patogen&eacute;zou.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">T&aacute;to &scaron;t&uacute;dia bola obmedzen&aacute; na 20 ma&#269;iek s FIP, ktor&eacute; predstavovali spektrum veku a foriem choroby. Aj ke&#271; bol po&#269;et lie&#269;en&yacute;ch ma&#269;iek mal&yacute;, zhroma&#382;dilo sa prekvapiv&eacute; mno&#382;stvo inform&aacute;ci&iacute;, napr&iacute;klad o tom, ako dlho sa m&aacute; lie&#269;i&#357;, o mo&#382;n&yacute;ch ved&#318;aj&scaron;&iacute;ch &uacute;&#269;inkoch, o tom, ako identifikova&#357; klinick&uacute; formu FIP, ktor&aacute; bude s najv&auml;&#269;&scaron;ou pravdepodobnos&#357;ou reagova&#357; na lie&#269;bu, a potenci&aacute;lnych ukazovate&#318;och zlyhania lie&#269;by a jej &uacute;spe&scaron;nosti. Klinick&aacute; &scaron;t&uacute;dia bola zalo&#382;en&aacute; na sk&uacute;senostiach z&iacute;skan&yacute;ch z farmakokinetick&yacute;ch &scaron;t&uacute;di&iacute; a &scaron;t&uacute;di&iacute; &uacute;&#269;innosti vykonan&yacute;ch na laborat&oacute;rnych ma&#269;k&aacute;ch. Po&#269;iato&#269;n&eacute; obdobie lie&#269;by bolo na z&aacute;klade experiment&aacute;lnych &scaron;t&uacute;di&iacute; stanoven&eacute; na 2 t&yacute;&#382;dne, nakoniec sa v&scaron;ak pred&#314;&#382;ilo na 12 t&yacute;&#382;d&#328;ov a viac na z&aacute;klade sk&uacute;senost&iacute; z&iacute;skan&yacute;ch v priebehu testovania. Toto kone&#269;n&eacute; lie&#269;ebn&eacute; obdobie sa bl&iacute;&#382;ilo k 3&ndash;6 mesiacom pou&#382;&iacute;van&yacute;m na lie&#269;bu infekcie HCV u &#318;ud&iacute; s priamo p&ocirc;sobiacimi antiv&iacute;rusov&yacute;mi liekmi. Na z&aacute;klade experiment&aacute;lnych &scaron;t&uacute;di&iacute; boli o&#269;ak&aacute;van&eacute; &#357;a&#382;kosti s lie&#269;en&iacute;m neurologick&yacute;ch foriem choroby. Ved&#318;aj&scaron;ie &uacute;&#269;inky boli prijate&#318;n&eacute; a zah&#341;&#328;ali p&aacute;lenie pri aplik&aacute;cii injekcie a derm&aacute;lny a podko&#382;n&yacute; z&aacute;pal, ke&#271; sa na rovnak&eacute; miesta podalo pr&iacute;li&scaron; ve&#318;a lie&#269;iva. Tento jav bol u&#382; predt&yacute;m pozorovan&yacute; aj u laborat&oacute;rnych ma&#269;iek. Z&aacute;va&#382;nej&scaron;&iacute; ved&#318;aj&scaron;&iacute; &uacute;&#269;inok, ktor&yacute; sa predt&yacute;m u laborat&oacute;rnych ma&#269;iek nepozoroval, sa obmedzil na ma&#269;iatka a zah&#341;&#328;al spomalen&yacute; v&yacute;voj dospel&yacute;ch zubov a retenciu alebo oneskoren&uacute; stratu mlie&#269;nych zubov.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Lie&#269;ba GC376 bola &uacute;spe&scaron;n&aacute; v indukcii v&yacute;znamnej remisie pr&iacute;znakov ochorenia a regresie l&eacute;zi&iacute; u 19\/20 ma&#269;iek. Tento v&yacute;sledok potvrdzuje na&scaron;e zistenia r&yacute;chleho zvratu klinick&yacute;ch pr&iacute;znakov u laborat&oacute;rnych ma&#269;iek s experiment&aacute;lnou FIP lie&#269;en&yacute;ch GC376, a roz&scaron;&iacute;ril na&scaron;e znalosti o &uacute;&#269;inkoch lieku na &scaron;irok&eacute; spektrum foriem prirodzene sa vyskytuj&uacute;cej FIP. Ma&#269;ky poch&aacute;dzali z r&ocirc;znych &#269;ast&iacute; USA a dokonca aj z Peru, &#269;o potvrdzuje, &#382;e geograficky rozmanit&eacute; kmene FIPV boli vo&#269;i tomuto inhib&iacute;toru rovnako citliv&eacute;. K v&yacute;razn&eacute;mu zn&iacute;&#382;eniu transkriptov v&iacute;rusovej RNA vo v&yacute;potkoch do&scaron;lo v priebehu nieko&#318;k&yacute;ch dn&iacute; lie&#269;by spolu s r&yacute;chlym zlep&scaron;en&iacute;m zdravotn&eacute;ho stavu. Remisia ochorenia v&scaron;ak pretrv&aacute;vala 3 mesiace a dlh&scaron;ie iba u 7\/20  t&yacute;chto ma&#269;iek. Neschopnos&#357; dosiahnu&#357; dlhodob&uacute; remisiu ochorenia bola nakoniec spojen&aacute; s v&yacute;skytom neurologick&eacute;ho ochorenia pri absencii rozsiahlych bru&scaron;n&yacute;ch l&eacute;zi&iacute; alebo s opakovan&iacute;m\/pretrv&aacute;van&iacute;m rozsiahlych bru&scaron;n&yacute;ch l&eacute;zi&iacute; za pr&iacute;tomnosti histologick&yacute;ch l&eacute;zi&iacute; v mozgu a\/alebo v o&#269;iach. Tieto objavy nazna&#269;uj&uacute;, &#382;e FIPV m&aacute; v&auml;&#269;&scaron;iu tendenciu &scaron;&iacute;ri&#357; sa z telesn&yacute;ch dut&iacute;n do mozgu, ako sa p&ocirc;vodne predpokladalo, najm&auml; ak sa mu poskytne dostatok &#269;asu. Toto roz&scaron;&iacute;renie s najv&auml;&#269;&scaron;ou pravdepodobnos&#357;ou zah&#341;&#328;a infikovan&eacute; makrof&aacute;gy, ktor&eacute; vstupuj&uacute; do mozgu mal&yacute;mi krvn&yacute;mi cievami v mozgov&yacute;ch blan&aacute;ch a ependyme.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">U ma&#269;ky, u ktor&yacute;ch sa vyskytlo neurologick&eacute; ochorenie, sa tak stalo bu&#271; po&#269;as lie&#269;by (CT05, CT08, CT22), alebo 2 (CT01, CT02, CT09), 3 (CT13) alebo 6 (CT10) t&yacute;&#382;d&#328;ov po ukon&#269;en&iacute; lie&#269;by. Najpravdepodobnej&scaron;&iacute;m vysvetlen&iacute;m tohto oneskorenia, ako aj ur&#269;itej terapeutickej v&yacute;hody vy&scaron;&scaron;&iacute;ch d&aacute;vok, bolo to, &#382;e &#269;as&#357; GC376 bola st&aacute;le schopn&aacute; prenikn&uacute;&#357; do mozgu. Hladiny GC376 v mozgovomiechovom moku predstavovali iba 3% plazmy v mozgu 2 hodiny po subkut&aacute;nnej injekcii v d&aacute;vke 10 mg\/kg (nezverejnen&eacute; &uacute;daje). Aj ke&#271; boli relat&iacute;vne koncentr&aacute;cie lie&#269;iva v mozgu u t&yacute;chto ma&#269;iek n&iacute;zke, st&aacute;le boli 21,4-kr&aacute;t vy&scaron;&scaron;ie ako hladiny potrebn&eacute; na inhib&iacute;ciu replik&aacute;cie v&iacute;rusu v tkanivovej kult&uacute;re. Na z&aacute;klade tohto zistenia sa predpokladalo, &#382;e vy&scaron;&scaron;ie d&aacute;vky umo&#382;&#328;uj&uacute; prienik vy&scaron;&scaron;ieho mno&#382;stva lie&#269;iva do mozgu. Tento predpoklad bol podporen&yacute; sk&uacute;senos&#357;ami s dvoma ma&#269;kami, ktor&eacute; vykazovali neurologick&eacute; pr&iacute;znaky. Zv&yacute;&scaron;enie d&aacute;vky GC376 na 50 mg\/kg ka&#382;d&yacute;ch 12 hod&iacute;n u jednej ma&#269;ky (CT01) viedlo k znate&#318;n&eacute;mu zlep&scaron;eniu, ale neeliminovalo pr&iacute;znaky ochorenia mozgu. Zd&aacute; sa, &#382;e pred&#314;&#382;enie lie&#269;by o takmer 3 mesiace v d&aacute;vke 15mg\/kg ka&#382;d&yacute;ch 12 h oddialilo progresiu neurologick&yacute;ch pr&iacute;znakov u druhej ma&#269;ky (CT12), zatia&#318; &#269;o pokusy zn&iacute;&#382;i&#357; celkov&uacute; denn&uacute; d&aacute;vku u tejto ma&#269;ky na 10mg\/kg ka&#382;d&yacute;ch 12 hod&iacute;n alebo 15mg\/kg ka&#382;d&yacute;ch 24 hod&iacute;n sp&ocirc;sobili zhor&scaron;enie neurologick&yacute;ch pr&iacute;znakov. To nazna&#269;uje, &#382;e d&aacute;vky 15 mg\/kg ka&#382;d&yacute;ch 12 hod&iacute;n alebo vy&scaron;&scaron;ie umo&#382;nili dostato&#269;n&eacute;mu mno&#382;stvu GC376 prekona&#357; hematoencefalick&uacute; bari&eacute;ru, aby spomalil, ale neeliminoval neurologick&eacute; pr&iacute;znaky.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Vysok&yacute; v&yacute;skyt ochoren&iacute; centr&aacute;lneho nervov&eacute;ho syst&eacute;mu (<a class=\"glossaryLink\"  aria-describedby=\"tt\"  data-cmtooltip=\"&lt;div class=glossaryItemBody&gt;Centr&aacute;ln&iacute; nervov&aacute; soustava (CNS) je &uacute;st&#345;edn&iacute; &#269;&aacute;st nervov&eacute; soustavy obratlovc&#367;. Spolu s perifern&iacute;mi nervy hraje &uacute;st&#345;edn&iacute; roli v &#345;&iacute;zen&iacute; jejich chov&aacute;n&iacute;. Centr&aacute;ln&iacute; nervov&aacute; soustava se skl&aacute;d&aacute; z mozku a m&iacute;chy.&lt;\/div&gt;\"  href=\"https:\/\/www.fipwarriors.eu\/en\/glossary\/centralna-nervova-sustava\/\"  data-mobile-support=\"0\"  data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex='0' role='link'>CNS<\/a>) v tejto &scaron;t&uacute;dii bol vy&scaron;&scaron;&iacute;, ako sa uv&aacute;dzalo predt&yacute;m, a bol neo&#269;ak&aacute;van&yacute;, preto&#382;e ma&#269;ky so zn&aacute;mkami postihnutia mozgu alebo miechy boli zo &scaron;t&uacute;die vyl&uacute;&#269;en&eacute;. Choroby CNS sa uk&aacute;zala omnoho pravdepodobnej&scaron;ia u star&scaron;&iacute;ch ma&#269;iek so suchou alebo zmie&scaron;anou formou FIP ako u mlad&yacute;ch ma&#269;iek s vlhkou FIP. To nazna&#269;uje, &#382;e FIPV m&ocirc;&#382;e u mnoh&yacute;ch ma&#269;iek prenikn&uacute;&#357; do mozgu, ak je mu poskytnut&yacute; dostatok &#269;asu. Zd&aacute; sa, &#382;e pri infekcii CNS zohr&aacute;vaj&uacute; &uacute;lohu makrof&aacute;gy peritone&aacute;lneho typu, preto&#382;e FIPV infikovan&eacute; bunky v mozgu ma&#269;iek s neurologickou FIP sa viac podobaj&uacute; sk&ocirc;r peritone&aacute;lnym makrof&aacute;gom ako rezidentn&yacute;m mozgov&yacute;m makrof&aacute;gom. To by nemalo by&#357; prekvapuj&uacute;ce, preto&#382;e makrof&aacute;gy migruj&uacute; do r&ocirc;znych tkan&iacute;v, vr&aacute;tane mozgu, na vykon&aacute;vanie imunitn&eacute;ho doh&#318;adu a s&uacute; tie&#382; cie&#318;mi pre cel&yacute; rad infek&#269;n&yacute;ch agensov, ako s&uacute; FIPV a HIV-1. Infikovan&eacute; makrof&aacute;gy hraj&uacute; hlavn&uacute; &uacute;lohu pri &scaron;&iacute;ren&iacute; v&iacute;rusu do mozgu u pacientov s HIV a detekcia v&iacute;rusu v mozgu je mo&#382;n&aacute; v priebehu nieko&#318;k&yacute;ch t&yacute;&#382;d&#328;ov po infikovan&iacute;. K neurologick&eacute;mu po&scaron;kodeniu v&scaron;ak zvy&#269;ajne d&ocirc;jde v neskor&scaron;om &scaron;t&aacute;diu. Lieky proti HIV tie&#382; zni&#382;uj&uacute; frekvenciu z&aacute;va&#382;n&yacute;ch neurologick&yacute;ch por&uacute;ch, podobne, ako sa pozorovalo v tejto &scaron;t&uacute;dii o FIPV a GC376. Existuj&uacute; aj alternat&iacute;vne vysvetlenia. Je mo&#382;n&eacute;, &#382;e extra-CNS &uacute;&#269;as&#357; m&ocirc;&#382;e inhibova&#357; rozvoj mozgov&yacute;ch ochoren&iacute; a naopak. Je be&#382;n&eacute;, &#382;e sa ochorenie CNS vyskytuje pri nepr&iacute;tomnosti viscer&aacute;lneho ochorenia a naopak. Potla&#269;enie replik&aacute;cie v&iacute;rusu v neneuron&aacute;lnych tkaniv&aacute;ch m&ocirc;&#382;e tie&#382; zv&yacute;&scaron;i&#357; pozit&iacute;vnu selekciu mutantov, ktor&eacute; s&uacute; neurotropnej&scaron;ie alebo neurovirulentnej&scaron;ie. D&ocirc;kaz druhej mo&#382;nosti by si v&scaron;ak vy&#382;adoval ve&#318;k&eacute; &scaron;t&uacute;die s pou&#382;it&iacute;m laborat&oacute;rnych ma&#269;iek.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Zdalo sa, &#382;e ur&#269;it&eacute; formy FIP ovplyv&#328;ovali &uacute;spe&scaron;nos&#357; lie&#269;by. Chovanie GC376 pri lie&#269;be okul&aacute;rnej FIP bolo paradoxn&eacute;, preto&#382;e t&aacute;to forma mimoriadne dobre reagovala na GC376. Aj ke&#271; o&#269;n&eacute; l&eacute;zie reagovali na lie&#269;bu, v&scaron;etky tri ma&#269;ky s postihnut&iacute;m o&#269;&iacute; nakoniec pod&#318;ahli mozgov&yacute;m ochoreniam, &#269;o podporilo bl&iacute;zky anatomick&yacute; vz&#357;ah oka a CNS. Chronick&eacute; ileocek&aacute;lne postihnutie a postihnutie hrub&eacute;ho &#269;reva a spomalen&yacute; rast u star&scaron;&iacute;ch ma&#269;iek v tejto &scaron;t&uacute;dii taktie&#382; predstavovali zl&uacute; progn&oacute;zu. U mnoh&yacute;ch z t&yacute;chto ma&#269;iek sa objavil bru&scaron;n&yacute; v&yacute;potok iba ako termin&aacute;lny prejav ich choroby. Hostite&#318;sk&eacute; faktory tie&#382; spojen&eacute; so zn&iacute;&#382;enou odpove&#271;ou na antiv&iacute;rusov&uacute; lie&#269;bu pri in&yacute;ch v&iacute;rusov&yacute;ch infekci&aacute;ch, ako je HCV, zah&#341;&#328;aj&uacute; vek, pohlavie, cirh&oacute;zu alebo fibr&oacute;zu pe&#269;ene, rasu alebo telesn&uacute; hmotnos&#357;.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Vznik rezistencie je hlavn&yacute;m probl&eacute;mom ka&#382;d&eacute;ho antiv&iacute;rusov&eacute;ho lieku, ale FIPV sa zriedka pren&aacute;&scaron;a z ma&#269;ky na ma&#269;ku, a rezistencia na lie&#269;ivo, ak by sa vyskytla, by predstavovala probl&eacute;m iba pre jednotliv&eacute; lie&#269;en&eacute; ma&#269;ky, a nie pre cel&uacute; popul&aacute;ciu. Aj ke&#271; v&iacute;rusov&aacute; rezistencia na GC376 nebola pozorovan&aacute; a&#382; do 20 pas&aacute;&#382;&iacute; <a class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"&lt;div class=glossaryItemBody&gt;in vitro - lat. &amp;quot;V skle&amp;quot; tj. V sk&uacute;mavke, za umel&yacute;ch, laborat&oacute;rnych podmienok. Napr. pri testovan&iacute; &uacute;&#269;inkov chemick&yacute;ch l&aacute;tok na &#382;iv&yacute; organizmus s&uacute; &uacute;&#269;inky sk&uacute;man&eacute; najprv na kult&uacute;re buniek pestovan&yacute;ch v sk&uacute;mavke. In&yacute;m pr&iacute;kladom je oplodnenie in vitro &amp;quot;die&#357;a zo sk&uacute;mavky&amp;quot;, IVF. Porov. in vivo lat. in v; VITRUM sklo&lt;\/div&gt;\" href=\"https:\/\/www.fipwarriors.eu\/en\/glossary\/in-vitro\/\" data-mobile-support=\"0\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex=\"0\" role=\"link\">in vitro<\/a>, &#269;o nazna&#269;uje, &#382;e rezistencia sa ned&aacute; z&iacute;ska&#357; &#318;ahko, dlhodob&aacute; a opakovan&aacute; lie&#269;ba in vivo m&ocirc;&#382;e predstavova&#357; silnej&scaron;&iacute; selek&#269;n&yacute; faktor. Zd&aacute; sa v&scaron;ak, &#382;e v&iacute;rusov&aacute; rezistencia nebola zodpovedn&aacute; za relapsy bru&scaron;n&yacute;ch chor&ocirc;b u piatich lie&#269;en&yacute;ch ma&#269;iek. Tieto ma&#269;ky mali granulomat&oacute;zne &uacute;tvary, &#269;asto v hrubom &#269;reve a ileo-cek&aacute;lno-kolick&yacute;ch lymfatick&yacute;ch uzlin&aacute;ch, ktor&eacute; mohli poskytova&#357; chr&aacute;nen&eacute; miesto na pretrvanie v&iacute;rusov. Ochrana patog&eacute;nov v granul&oacute;moch je pre mykobakt&eacute;rie dobre zdokumentovan&yacute;m javom a vz&#357;ahuje sa na &#271;al&scaron;ie patog&eacute;ny, ako s&uacute; v&iacute;rusy. Stav ochorenia pe&#269;ene (cirh&oacute;za) pri infekcii HCV tie&#382; zvy&scaron;uje riziko relapsu a vy&#382;aduje dlh&scaron;iu lie&#269;bu, &#269;o tie&#382; nazna&#269;uje, &#382;e v&iacute;rusy m&ocirc;&#382;u by&#357; chr&aacute;nen&eacute; pred liekmi, ke&#271; sa nach&aacute;dzaj&uacute; na ur&#269;it&yacute;ch chr&aacute;nen&yacute;ch miestach. Form&aacute;cia &bdquo;ochrann&yacute;ch granul&oacute;mov&ldquo; zah&#341;&#328;a ve&#318;k&eacute; mno&#382;stvo chemok&iacute;nov a <a class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"&lt;div class=glossaryItemBody&gt;Cytokin (podobn&yacute; term&iacute;n interleukin) je ozna&#269;en&iacute; pro skupinu men&scaron;&iacute;ch sign&aacute;ln&iacute;ch protein&#367;, &uacute;&#269;astn&iacute;c&iacute;ch se v&yacute;znamn&#283; v imunitn&iacute; odpov&#283;di. Cytokiny jsou produkov&aacute;ny bu&#328;kami imunitn&iacute;ho syst&eacute;mu (makrof&aacute;gy, T-lymfocyty, atp.) a jsou schopn&eacute; navodit nap&#345;&iacute;klad rychl&eacute; d&#283;len&iacute; a diferenciaci ur&#269;it&yacute;ch typ&#367; bun&#283;k, kter&eacute; se &uacute;&#269;astn&iacute; boje proti patogen&#367;m, p&#345;&iacute;padn&#283; dal&scaron;&iacute; rysy imunitn&iacute; obrany.V ur&#269;it&eacute;m slova smyslu cytokiny nemus&iacute; b&yacute;t produkov&aacute;ny pouze b&iacute;l&yacute;mi krvinkami a v&yacute;znam slova se roz&scaron;i&#345;uje na v&scaron;echny mal&eacute; sign&aacute;ln&iacute; proteiny; term&iacute;n interleukin se v tom p&#345;&iacute;pad&#283; pou&#382;&iacute;v&aacute; pro sign&aacute;ln&iacute; molekuly vylu&#269;ovan&eacute; b&iacute;l&yacute;mi krvinkami.&lt;\/div&gt;\" href=\"https:\/\/www.fipwarriors.eu\/en\/glossary\/cytokin\/\" data-mobile-support=\"0\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex=\"0\" role=\"link\">cytok&iacute;nov<\/a> a zvy&scaron;ovanie regul&aacute;cie chemok&iacute;nov&yacute;ch receptorov, adres&iacute;nov, selekt&iacute;nov a integr&iacute;nov. Perzistencia patog&eacute;nov na t&yacute;chto chr&aacute;nen&yacute;ch miestach m&ocirc;&#382;e vy&#382;adova&#357; vy&scaron;&scaron;iu d&aacute;vka lieku a dlh&scaron;iu dobu trvania lie&#269;by.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Zlyhania lie&#269;by m&ocirc;&#382;u tie&#382; by&#357; v&yacute;sledkom neschopnosti hostite&#318;a dosiahnu&#357; ochrann&uacute; imunitn&uacute; reakciu po&#269;as obdobia, ke&#271; je potla&#269;en&aacute; replik&aacute;cia v&iacute;rusu. Tak&eacute;to zlyhanie sa pozorovalo pri infekcii HCV u &#318;ud&iacute;. Imunita sprostredkovan&aacute; T-lymfocytmi hr&aacute; d&ocirc;le&#382;it&uacute; &uacute;lohu v ochrannej imunite, ktor&aacute; sa vyskytuje asi u 20% ak&uacute;tnej infekcie HCV, a pri rovnakom alebo v&auml;&#269;&scaron;om podiele infekcie FIPV. Je e&scaron;te potrebn&eacute; presk&uacute;ma&#357; mo&#382;n&uacute; synergiu v&iacute;rusov&eacute;ho kl&iacute;rensu sprostredkovan&eacute;ho T-lymfocytmi a antiv&iacute;rusovej terapie u ma&#269;iek s FIP. Pr&iacute;nosom by mohla by&#357; aj kombin&aacute;cia antiv&iacute;rusov&yacute;ch liekov a stimulantov imunity T-lymfocytov pri lie&#269;be FIP, ako je kombin&aacute;cia interfer&oacute;nov a ribavir&iacute;nu pri lie&#269;be infekcie HCV.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Trval&aacute; remisia u 6\/7 ma&#269;iek lie&#269;en&yacute;ch 12 t&yacute;&#382;d&#328;ov alebo dlh&scaron;ie bola do istej miery predv&iacute;date&#318;n&aacute;. Tieto ma&#269;ky boli vo veku 3,3&ndash;4,4 mesiaca, ke&#271; sa u nich prejavili ak&uacute;tne pr&iacute;znaky bru&scaron;nej (C15, C17, C18, CT21, CT23) alebo hrudnej ef&uacute;znej FIP (CT20). To ich urobilo mlad&scaron;&iacute;mi ako v&scaron;etky ostatn&eacute; ma&#269;ky v &scaron;t&uacute;dii okrem troch (CT8, CT16, CT21) a viac sa podobali 16-t&yacute;&#382;d&#328;ov&yacute;m laborat&oacute;rnym ma&#269;k&aacute;m s ak&uacute;tnym n&aacute;stupom ef&uacute;znej FIP, ktor&eacute; dobre reagovali na GC376. Choroba, ak je ak&uacute;tna, d&aacute;va v&iacute;rusu na prienik do mozgu alebo o&#269;&iacute; m&aacute;lo &#269;asu. Ak&uacute;tnos&#357; ich ochorenia mohla tie&#382; umo&#382;ni&#357; krat&scaron;iu dobu, aby infekcia natrvalo naru&scaron;ila ak&uacute;ko&#318;vek ochrann&uacute; imunitn&uacute; odpove&#271;. Siedma ma&#269;ka, CT04, bola oproti t&yacute;mto &scaron;iestim mlad&scaron;&iacute;m ma&#269;k&aacute;m extr&eacute;mom. CT04 bola so svojimi 6,8 rokmi najstar&scaron;ou ma&#269;kou v &scaron;t&uacute;dii, u ktorej do&scaron;lo k v&yacute;razn&eacute;mu &uacute;bytku hmotnosti (30%) a ochoreniu obmedzen&eacute;mu na mezenterick&eacute; lymfatick&eacute; uzliny. CT04 utrpela relapsy choroby vy&#382;aduj&uacute;ce obnovenie lie&#269;by, ale v&scaron;etky relapsy boli identick&eacute; so vstup&yacute;m stavom a nezah&#341;&#328;ali CNS. Je zn&aacute;me, &#382;e ma&#269;ky s touto formou FIP prech&aacute;dzaj&uacute; spont&aacute;nnou remisiou, &#269;o nazna&#269;uje, &#382;e existuje bod zlomu medzi imunitou a chorobou. Ma&#269;ky CT04 a CT21 demon&scaron;trovali m&uacute;dre rozhodnutie znovuzah&aacute;jenia lie&#269;by pri relapse, za predpokladu, &#382;e relapsy nezah&#341;&#328;aj&uacute; o&#269;i alebo nervov&yacute; syst&eacute;m a st&aacute;le reaguj&uacute; na lieky.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Stanovenie minim&aacute;lnej doby trvania lie&#269;by bolo zalo&#382;en&eacute; na postupnom predl&#382;ovan&iacute; trvania lie&#269;by na z&aacute;klade priaznivej reakcie na lie&#269;bu. Na z&aacute;klade experiment&aacute;lnych &scaron;t&uacute;di&iacute; sa o&#269;ak&aacute;valo, &#382;e m&ocirc;&#382;u by&#357; posta&#269;uj&uacute;ce 2 t&yacute;&#382;dne lie&#269;by; to sa teda pou&#382;ilo ako v&yacute;chodiskov&yacute; bod. T&aacute;to &scaron;t&uacute;dia v&scaron;ak nazna&#269;ila, &#382;e minim&aacute;lna doba lie&#269;by sa bl&iacute;&#382;ila k 12 t&yacute;&#382;d&#328;om, &#269;o sa prekvapivo bl&iacute;&#382;ilo k zvy&#269;ajn&eacute;mu 12-t&yacute;&#382;d&#328;ov&eacute;mu obdobiu, ktor&eacute; je potrebn&eacute; na lie&#269;bu &#318;ud&iacute; s HCV pomocou inhib&iacute;torov prote&aacute;zy. Av&scaron;ak doba lie&#269;by HCV sa m&ocirc;&#382;e pohybova&#357; od 8 do 24 t&yacute;&#382;d&#328;ov u r&ocirc;znych &#318;ud&iacute;. Ma&#269;ka CT21 bola navonok zdrav&aacute;, akt&iacute;vna a po 12 t&yacute;&#382;d&#328;och lie&#269;by r&aacute;stla, ale celkov&yacute; po&#269;et bielkov&iacute;n a bielych krviniek sa st&aacute;le nevr&aacute;til do norm&aacute;lu, ako tomu bolo u ostatn&yacute;ch &scaron;iestich ma&#269;iek. Napriek tomu sa rozhodlo o ukon&#269;en&iacute; lie&#269;by po 17 t&yacute;&#382;d&#328;och z d&ocirc;vodu dlh&eacute;ho obdobia navonok norm&aacute;lneho zdravia. To, &#269;i by dlhodobej&scaron;ia lie&#269;ba mohla zabr&aacute;ni&#357; relapsu choroby 13 t&yacute;&#382;d&#328;ov po ukon&#269;en&iacute; lie&#269;by, si m&ocirc;&#382;eme len dom&yacute;&scaron;&#318;a&#357;, ale zvy&scaron;uje to pochybnos&#357; o tom, ak&aacute; dlh&aacute; m&aacute; v&ocirc;bec by&#357; potrebn&aacute; doba lie&#269;by u niektor&yacute;ch ma&#269;iek. Nasto&#318;uje sa tie&#382; ot&aacute;zka, ako dlh&eacute; mus&iacute; by&#357; obdobie remisie, aby sme mohli prehl&aacute;si&#357; &#382;e do&scaron;lo k uzdraveniu, a nielen k dlhodobej remisii. Najdlh&scaron;ie obdobie bez choroby bolo v &#269;ase p&iacute;sania tohto &#269;l&aacute;nku viac ako 11 mesiacov, pri&#269;om p&auml;&#357; &#271;al&scaron;&iacute;ch ma&#269;iek bolo bez zn&aacute;mok infekcie po dobu 5&ndash;9 mesiacov. Na z&aacute;klade klinick&yacute;ch a histologick&yacute;ch d&ocirc;kazov neurologick&eacute;ho ochorenia v &#269;ase smrte&#318;n&yacute;ch relapsov sa zd&aacute;, &#382;e sa v&iacute;rus nakoniec dostane do mozgu a &#382;e to m&ocirc;&#382;e by&#357; najd&ocirc;le&#382;itej&scaron;&iacute;m obmedzuj&uacute;cim faktorom pri antiv&iacute;rusovej lie&#269;be FIP.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Aj ke&#271; dlhodobo pre&#382;ila iba jedna tretina ma&#269;iek, 20 ma&#269;iek v tejto &scaron;t&uacute;dii poskytuje z&aacute;klad pre bud&uacute;ce &scaron;t&uacute;die s GC376 a &#271;al&scaron;&iacute;mi antiv&iacute;rusov&yacute;mi liekmi, ktor&eacute; bud&uacute; nasledova&#357;. Nie v&scaron;etky ma&#269;ky bud&uacute; lie&#269;ite&#318;n&eacute;, ale to by nemalo zastavi&#357; &uacute;silie. V tejto obmedzenej &scaron;t&uacute;dii sa takmer v&scaron;etk&yacute;m lie&#269;en&yacute;m ma&#269;k&aacute;m vr&aacute;til norm&aacute;lny zdravotn&yacute; stav, aj ke&#271; iba na nieko&#318;ko t&yacute;&#382;d&#328;ov alebo mesiacov. Je d&ocirc;le&#382;it&eacute; si uvedomi&#357; univerz&aacute;lnos&#357; v&iacute;rusov&yacute;ch patog&eacute;nov a vyu&#382;i&#357; priekopn&iacute;cky v&yacute;voj liekov, ktor&eacute; sa klinicky uplat&#328;uj&uacute; pri lie&#269;be &#318;udsk&yacute;ch chor&ocirc;b, ako je HIV\/AIDS, hepatit&iacute;da C, MERS, SARS, Ebola a chr&iacute;pka.<\/p>\n\n\n\n<h2 class=\"lm-underscore wp-block-heading\">Z&aacute;very<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Inhib&iacute;cia FIPV 3CLpro s pomocou GC376 sa za podmienok &scaron;t&uacute;die uk&aacute;zala ako &uacute;&#269;inn&aacute; a viedla k zn&iacute;&#382;eniu replik&aacute;cie v&iacute;rusu a k remisii pr&iacute;znakov choroby u ma&#269;iek s prirodzene sa vyskytuj&uacute;cou FIP mimo CNS. K trvalej remisii v tejto &scaron;t&uacute;dii v&scaron;ak doch&aacute;dzalo sk&ocirc;r u ma&#269;iatok vo veku ni&#382;&scaron;om ako 18 t&yacute;&#382;d&#328;ov s ak&uacute;tnou vlhkou FIP alebo u ma&#269;iek so suchou FIP obmedzenou na mezenterick&uacute; lymfatick&uacute; uzlinu a je menej pravdepodobn&eacute;, &#382;e sa vyskytne u ma&#269;iek star&scaron;&iacute;ch ako 18 t&yacute;&#382;d&#328;ov so suchou, zmie&scaron;anou alebo okul&aacute;rnou formou FIP. Neschopnos&#357; dosiahnu&#357; trval&uacute; remisiu bola spojen&aacute; bu&#271; s vysok&yacute;m v&yacute;skytom neurologick&yacute;ch ochoren&iacute; po&#269;as alebo po ukon&#269;en&iacute; lie&#269;by alebo s recid&iacute;vou bru&scaron;n&yacute;ch l&eacute;zi&iacute;. Zd&aacute; sa, &#382;e antiv&iacute;rusov&aacute; lie&#269;ba spomalila progresiu neurologick&eacute;ho ochorenia, ale nedok&aacute;zala ju zvr&aacute;ti&#357; pri d&aacute;vke pou&#382;itej v tejto &scaron;t&uacute;dii. Pr&iacute;&#269;ina recid&iacute;vy extra-neurologick&eacute;ho ochorenia pri lie&#269;be nebola stanoven&aacute;, ale nes&uacute;visela s mut&aacute;ciami v oblasti via&#382;ucej prote&aacute;zu.<\/p>\n\n\n\n<h2 class=\"lm-underscore wp-block-heading\">Pozn&aacute;mky pod &#269;iarou<br><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Prijat&eacute;: <\/strong>3.8.2017<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Dopl&#328;uj&uacute;ci materi&aacute;l: Formul&aacute;r informovan&eacute;ho s&uacute;hlasu majite&#318;a.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Konflikt z&aacute;ujmov:<\/strong> YK, KOC a WCG maj&uacute; v rukopise patentov&eacute; n&aacute;roky na inhib&iacute;tory prote&aacute;zy. Ostatn&iacute; autori neprehlasuj&uacute; &#382;iadne potenci&aacute;lne konflikty z&aacute;ujmov v s&uacute;vislosti s v&yacute;skumom, autorstvom alebo publikovan&iacute;m tohto &#269;l&aacute;nku.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Financovanie:<\/strong> Hlavn&aacute; podpora tejto &scaron;t&uacute;die bola umo&#382;nen&aacute; v&#271;aka grantu od Morris Animal Foundation, Denver, CO, USA. &#270;al&scaron;ie prostriedky na technick&uacute; podporu a starostlivos&#357; o zvierat&aacute; poskytli Fond Philipa Raskina, Kansas City, SOCK FIP, grant National Institutes of Health R01AI109039 a Centrum pre zdravie spolo&#269;ensk&yacute;ch zvierat, Kalifornsk&aacute; univerzita, Davis, CA, USA.<\/p>\n\n\n\n<h2 class=\"lm-underscore wp-block-heading\">Literat&uacute;ra<\/h2>\n\n\n\n<figure class=\"wp-block-table is-style-stripes has-small-font-size\"><table><tbody><tr><td>1.<\/td><td>Prokofjeva, MM, Kochetkov, SN, Prassolov, VS.&nbsp;Therapy of HIV infection: current approaches and prospects. 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J Feline Med Surg&nbsp;2009; 11:&nbsp;624&ndash;626.<br><a href=\"http:\/\/scholar.google.com\/scholar_lookup?hl=en&amp;volume=11&amp;publication_year=2009&amp;pages=624-626&amp;author=AM+Legendre&amp;author=JW+Bartges&amp;title=Effect+of+polyprenyl+immunostimulant+on+the+survival+times+of+three+cats+with+the+dry+form+of+feline+infectious+peritonitis\">Google Scholar<\/a>&nbsp;|&nbsp;<a href=\"https:\/\/journals.sagepub.com\/doi\/10.1016\/j.jfms.2008.12.002\">SAGE Journals<\/a>&nbsp;|&nbsp;<a href=\"https:\/\/journals.sagepub.com\/servlet\/linkout?suffix=bibr27-1098612X17729626&amp;dbid=128&amp;doi=10.1177%2F1098612X17729626&amp;key=000268939300002\">ISI<\/a><\/td><\/tr><tr><td>28.<\/td><td>Legendre, AM, Kuritz, T, Galyon, G.&nbsp;Polyprenyl immunostimulant treatment of cats with presumptive non-effusive feline infectious peritonitis in a field study. Front Vet Sci&nbsp;2017; 4:&nbsp;7.<br><a href=\"http:\/\/scholar.google.com\/scholar_lookup?hl=en&amp;volume=4&amp;publication_year=2017&amp;pages=7&amp;author=AM+Legendre&amp;author=T+Kuritz&amp;author=G+Galyon&amp;title=Polyprenyl+immunostimulant+treatment+of+cats+with+presumptive+non-effusive+feline+infectious+peritonitis+in+a+field+study\">Google Scholar<\/a>&nbsp;|&nbsp;<a href=\"https:\/\/journals.sagepub.com\/servlet\/linkout?suffix=bibr28-1098612X17729626&amp;dbid=16&amp;doi=10.1177%2F1098612X17729626&amp;key=10.3389%2Ffvets.2017.00007\">Crossref<\/a>&nbsp;|&nbsp;<a href=\"https:\/\/journals.sagepub.com\/servlet\/linkout?suffix=bibr28-1098612X17729626&amp;dbid=8&amp;doi=10.1177%2F1098612X17729626&amp;key=28261584\">Medline<\/a><\/td><\/tr><\/tbody><\/table><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>Niels C Pedersen, Yunjeong Kim, Hongwei Liu, Anushka C Galasiti Kankanamalage, Chrissy Eckstrand, William C Groutas, Michael Bannasch, Juliana M Meadows, and Kyeong-Ok Chang ? Clinical study on in vivo testing of the first generation drug for the treatment of FIP - the protease inhibitor GC376.<\/p>","protected":false},"author":1,"featured_media":5527,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_uag_custom_page_level_css":"","footnotes":""},"categories":[191,193,187,190],"tags":[178,182,181],"class_list":["post-5458","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-dr-pedersen","category-klinicke-studie","category-odborne","category-preklady","tag-dr-pedersen","tag-gc376","tag-klinicka-studia"],"featured_image_urls_v2":{"full":["https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2021\/02\/Laboratory-Assistant-FHD.jpg",1920,1080,false],"thumbnail":["https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2021\/02\/Laboratory-Assistant-FHD-150x150.jpg",150,150,true],"medium":["https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2021\/02\/Laboratory-Assistant-FHD-300x169.jpg",300,169,true],"medium_large":["https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2021\/02\/Laboratory-Assistant-FHD-768x432.jpg",525,295,true],"large":["https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2021\/02\/Laboratory-Assistant-FHD-1024x576.jpg",525,295,true],"1536x1536":["https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2021\/02\/Laboratory-Assistant-FHD-1536x864.jpg",1536,864,true],"2048x2048":["https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2021\/02\/Laboratory-Assistant-FHD.jpg",1920,1080,false],"trp-custom-language-flag":["https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2021\/02\/Laboratory-Assistant-FHD-16x9.jpg",16,9,true],"twentyseventeen-featured-image":["https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2021\/02\/Laboratory-Assistant-FHD.jpg",1920,1080,false],"twentyseventeen-thumbnail-avatar":["https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2021\/02\/Laboratory-Assistant-FHD-100x100.jpg",100,100,true],"woocommerce_thumbnail":["https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2021\/02\/Laboratory-Assistant-FHD-250x250.jpg",250,250,true],"woocommerce_single":["https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2021\/02\/Laboratory-Assistant-FHD-350x197.jpg",350,197,true],"woocommerce_gallery_thumbnail":["https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2021\/02\/Laboratory-Assistant-FHD-100x100.jpg",100,100,true]},"post_excerpt_stackable_v2":"<p>Niels C Pedersen,Yunjeong Kim, Hongwei Liu, Anushka C Galasiti Kankanamalage, Chrissy Eckstrand, William C Groutas, Michael Bannasch, Juliana M Meadows, and Kyeong-Ok Chang ? Klinick&aacute; &scaron;t&uacute;dia o <a class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"&lt;div class=glossaryItemBody&gt;in vivo - lat. &amp;quot;V &#382;ivom&amp;quot;, v &#382;ivom organizme, &#318;udskom alebo zvieracom. M&ocirc;&#382;e sa t&yacute;ka&#357; ako pokuse aj skuto&#269;n&eacute;ho priebehu ur&#269;it&eacute;ho deja alebo choroby. Porov. in vitro lat. in v; Vivus &#382;iv&yacute;&lt;\/div&gt;\" href=\"https:\/\/www.fipwarriors.eu\/en\/glossary\/in-vivo\/\" data-mobile-support=\"0\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex=\"0\" role=\"link\">in vivo<\/a> testovan&iacute; prvej gener&aacute;cie lieku na lie&#269;bu <a class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"&lt;div class=glossaryItemBody&gt;Infek&#269;n&aacute; peritonit&iacute;da ma&#269;iek (angl. Feline infectious peritonitis, zau&#382;&iacute;van&aacute; skratka FIP) je infek&#269;n&eacute; ochorenie ma&#269;iek sp&ocirc;sobuj&uacute;ce smr&#357;. N&aacute;zov je mierne zav&aacute;dzaj&uacute;ci, preto&#382;e nejde o z&aacute;pal pobru&scaron;nice (&#269;i&#382;e peritonea), ale o z&aacute;pal ciev (vaskulit&iacute;da). Klinick&eacute; pr&iacute;znaky FIP sa v&scaron;ak &#269;asto prejavuj&uacute; vo forme z&aacute;palu pobru&scaron;nice. V&iacute;rus FIP nap&aacute;da v&scaron;ak aj pohrudnicu &ndash; z toho d&ocirc;vodu je niekedy choroba ozna&#269;ovan&aacute; tie&#382; ako Infek&#269;n&aacute; ma&#269;acia polyserozit&iacute;da (Feline infectious polyserositis).&lt;\/div&gt;\" href=\"https:\/\/www.fipwarriors.eu\/en\/glossary\/fip\/\" data-mobile-support=\"0\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex=\"0\" role=\"link\">FIP<\/a> &ndash; inhib&iacute;tora prote&aacute;zy GC376.<\/p>\n","category_list_v2":"<a href=\"https:\/\/www.fipwarriors.eu\/en\/category\/dr-pedersen\/\" rel=\"category tag\">Dr. Pedersen<\/a>, <a href=\"https:\/\/www.fipwarriors.eu\/en\/category\/klinicke-studie\/\" rel=\"category tag\">Klinick\u00e9 \u0161t\u00fadie<\/a>, <a href=\"https:\/\/www.fipwarriors.eu\/en\/category\/odborne\/\" rel=\"category tag\">Odborn\u00e9<\/a>, <a href=\"https:\/\/www.fipwarriors.eu\/en\/category\/preklady\/\" rel=\"category tag\">Preklady<\/a>","author_info_v2":{"name":"LM","url":"https:\/\/www.fipwarriors.eu\/en\/author\/starman\/"},"comments_num_v2":"0 comments","featured_image_src":"https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2021\/02\/Laboratory-Assistant-FHD.jpg","author_info":{"display_name":"L. M.","author_link":"https:\/\/www.fipwarriors.eu\/en\/author\/starman\/"},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>\u00da\u010dinnos\u0165 inhib\u00edtora 3C-Like prote\u00e1zy pri lie\u010dbe r\u00f4znych foriem z\u00edskanej ma\u010dacej infek\u010dnej peritonit\u00eddy - FIP Warriors CZ\/SK \u00ae<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.fipwarriors.eu\/en\/ucinnost-inhibitora-3clike-proteazy-pri-liecbe-roznych-foriem-ziskanej-macacej-infekcnej-peritonitidy\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u00da\u010dinnos\u0165 inhib\u00edtora 3C-Like prote\u00e1zy pri lie\u010dbe r\u00f4znych foriem z\u00edskanej ma\u010dacej infek\u010dnej peritonit\u00eddy - FIP Warriors CZ\/SK \u00ae\" \/>\n<meta property=\"og:description\" content=\"Niels C Pedersen,Yunjeong Kim, Hongwei Liu, Anushka C Galasiti Kankanamalage, Chrissy Eckstrand, William C Groutas, Michael Bannasch, Juliana M Meadows, and Kyeong-Ok Chang ? Klinick&aacute; &scaron;t&uacute;dia o in vivo testovan&iacute; prvej gener&aacute;cie lieku na lie&#269;bu FIP - inhib&iacute;tora prote&aacute;zy GC376.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.fipwarriors.eu\/en\/ucinnost-inhibitora-3clike-proteazy-pri-liecbe-roznych-foriem-ziskanej-macacej-infekcnej-peritonitidy\/\" \/>\n<meta property=\"og:site_name\" content=\"FIP Warriors CZ\/SK \u00ae\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/groups\/fipczsk\" \/>\n<meta property=\"article:published_time\" content=\"2021-02-07T19:53:34+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2023-03-29T07:50:18+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2021\/02\/Laboratory-Assistant-FHD.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1920\" \/>\n\t<meta property=\"og:image:height\" content=\"1080\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"L. M.\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"L. M.\" \/>\n\t<meta name=\"twitter:label2\" content=\"Estimated reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"52 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.fipwarriors.eu\\\/ucinnost-inhibitora-3clike-proteazy-pri-liecbe-roznych-foriem-ziskanej-macacej-infekcnej-peritonitidy\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.fipwarriors.eu\\\/ucinnost-inhibitora-3clike-proteazy-pri-liecbe-roznych-foriem-ziskanej-macacej-infekcnej-peritonitidy\\\/\"},\"author\":{\"name\":\"L. 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