{"id":431720,"date":"2020-08-31T09:52:14","date_gmt":"2020-08-31T07:52:14","guid":{"rendered":"https:\/\/hudo.com\/si\/2020\/08\/31\/slovenci-razvili-ucinkovito-cepivo-proti-koronavirusu\/"},"modified":"2020-08-31T09:52:14","modified_gmt":"2020-08-31T07:52:14","slug":"slovenci-razvili-ucinkovito-cepivo-proti-koronavirusu","status":"publish","type":"post","link":"https:\/\/hudo.com\/si\/zdrav-duh-telo\/slovenci-razvili-ucinkovito-cepivo-proti-koronavirusu\/","title":{"rendered":"Slovenci razvili u\u010dinkovito cepivo proti koronavirusu!"},"content":{"rendered":"<figure>\n\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"660\" height=\"320\" src=\"image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" class=\"lazyload\" \/><figcaption>foto:Profimedia<\/figcaption><\/figure>\n<p>Raziskovalna skupina na Kemijskem in\u0161titutu je zasnovala cepivo na osnovi plazmidne DNK, ki vsebuje zapis za virusne proteine in v \u010dlove\u0161kih celicah povzro\u010di proizvodnjo virusnih proteinov, ti pa spro\u017eijo tvorbo protiteles in za\u0161\u010ditnih celic T, je danes na novinarski konferenci pojasnil vodja te raziskovalne skupine Jerala.<\/p>\n<p>Po njegovih besedah v klini\u010dnih raziskavah v ZDA, Japonski in Ju\u017eni Koreji \u017ee testirajo razli\u010dna cepiva proti novem koronavirusu na osnovi plazmidne DNK. Prednost uporabe plazmidne DNK je nizka cena proizvodnje, visoka stabilnost, ki ne zahteva verige zamrzovalnikov, slabost pa manj u\u010dinkovit vnos v celice v primerjavi z virusnimi sistemi.<\/p>\n<p>Novost pristopa Jeralove skupine pri razvoju cepiva pa je v modifikaciji virusnih proteinov v nanodelce, ki spominjajo na viruse, s \u010demer so izbolj\u0161ali odziv imunskega sistema. Tako so pripravili pet razli\u010dic virusne proteinske domene RBD, ki je odgovorna za prepoznavanje celi\u010dnega receptorja.<\/p>\n<p>Rezultati testiranja cepiva na mi\u0161ih so po Jeralovih navedbah pokazali, da se je najbolje odrezala razli\u010dica cepiva, pri katerem so na virusni protein dodali kratek segment, ki je spro\u017eil tvorbo velikih skupkov. V tem primeru je bil odziv ve\u010d kot stokrat bolj\u0161i od monomenega proteina, ki ga sicer uporabljajo nekatera druga cepiva.<\/p>\n<p>Pokazali so, da protitelesa nevtralizirajo vezavo virusa na \u010dlove\u0161ki receptor v koncentracijah, ki so primerljive z drugimi cepivi in protitelesi pri bolnikih, ki so pre\u017eiveli oku\u017ebo z novim koronavirusom. Dodatno so pokazali tvorbo celic T, ki uni\u010dujejo celice, ki proizvajajo virusne proteine, kar prav tako lahko ustavi oku\u017ebo.<\/p>\n<p>Ob tem je Jerala opozoril, da gre za rezultate predklini\u010dnih \u0161tudij, kar pomeni \u0161ele za\u010detno stopnjo in da je do uporabe cepiva pot \u0161e dolga. Treba bi bilo izvesti obse\u017ene klini\u010dne \u0161tudije ljudeh, poleg tega pa po njegovem mnenju nima smisla nadaljevati z razvojem tega cepiva, ko bo enkrat na voljo varno in u\u010dinkovito cepivo proti novem koronavirusu. Vseeno pa ocenjuje, da so rezultati dobra popotnica za nadaljevanje raziskav, morda bodo dobra podlaga tudi za razvoj kak\u0161nega cepiva za nov virus v prihodnosti.<\/p>\n<p>Vseeno pa so za naslednje korake v Sloveniji organizirali konzorcij, v katerem poleg Kemijskega in\u0161tituta sodelujejo raziskovalci veterinarske fakultete, Fakultete za farmacijo Univerze v Ljubljani, zdravniki infekcijske klinike UKC Ljubljana in Klinike Golnik ter podjetja Jafral, ki bi po besedah Jerale lahko pripravil proces za proizvodnjo cepiva za klini\u010dne \u0161tudije in dokumentacijo za odobritev klini\u010dne \u0161tudije v skladu z visokimi zahtevami za aplikacijo cepiva v \u010dloveka.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Cepivo, ki ga je proti novem koronavirusu razvila raziskovalna skupina na Kemijskem in\u0161titutu pod vodstvom Romana Jerale, je v testiranju na mi\u0161ih ustvarilo visok imunski odziv, protitelesa pa so nevtralizirala vezavo virusa v obsegu, primerljivem z drugimi cepivi in protitelesi pri bolnikih, ki so pre\u017eiveli oku\u017ebo.<\/p>\n","protected":false},"author":1,"featured_media":431721,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[5060,15632,1595,1645],"source":[1549,1518],"supertag":[],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Slovenci razvili u\u010dinkovito cepivo proti koronavirusu! 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