{"id":80924,"date":"2018-05-04T12:40:22","date_gmt":"2018-05-04T12:40:22","guid":{"rendered":"http:\/\/humanitasnet-new.local\/enciclopedia\/nonspecific-innate-immunity\/"},"modified":"2018-05-04T12:40:22","modified_gmt":"2018-05-04T12:40:22","slug":"nonspecific-innate-immunity","status":"publish","type":"enciclopedia","link":"https:\/\/humanitas-net.humweb.webiz.team\/sr\/wiki\/nonspecific-innate-immunity\/","title":{"rendered":"Nonspecific or innate immunity"},"content":{"rendered":"<h2 id=\"nespecificni-ili-urodjeni-imunitet\">Nespecifi\u010dni ili uro\u0111eni imunitet<\/h2>\n<p>&nbsp;<\/p>\n<p>Nespecifi\u010dni ili uro\u0111eni imunitete predstavlja vid nespecifi\u010dnog imuniteta pisutnog na ro\u0111enju, ili kod osoba \u010diji imunolo\u0161ki mehanizam jo\u0161 uvek nije razvijen te je nemogu\u0107e obezbediti specifi\u010dne i selektivne patogene. Poznat je tako\u0111e i kao prirodni, nasledni ili konstitutivni imunitet i kao prva linija odbrane kon neimunizovanih organizama. Prva linija odbrane organizma predsrtavlja najstariji odgovor i \u010desta je kod multi\u0107elijskih organizama, kao \u0161to su insekti i biljke.<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>Uro\u0111eni imunitet uklju\u010duje NK limfocite (\u0107elije prirodne ubice), mast \u0107elije, eozinofile, bazofile, makrofage, neutrofile i dendriti\u010dne \u0107elije: ove \u0107elije poseduju razli\u010dite adne mehanizme, ali nikad nisu sposobnu za kompletnu eliminaciju patogena.<\/p>\n<p>&nbsp;<\/p>\n<h2 id=\"sta-je-nespecificni-ili-urodjeni-imunitet\">\u0160ta je nespecifi\u010dni ili uro\u0111eni imunitet ?<\/h2>\n<p>&nbsp;<\/p>\n<p>Mehanizmi prirodnog imuniteta i prethodni imunolo\u0161kih kontakata sa mikroorganizmima podrazumeva njihovu pravovremenu\u00a0 aktivaciju\u00a0 usled prisustva patogena pre nego \u0161to oganizam postane sposoban da razvije imunolo\u0161ki odgovor prema njima (specifi\u010dni imunitet).<\/p>\n<p>&nbsp;<\/p>\n<p>Prva linija odbrane zavisi od anatomskih barijera, fiziolo\u0161kih barijera kao i mehanizama endocitoze\/fagocitoze te i zapaljenskih procesa.<\/p>\n<p>&nbsp;<\/p>\n<p>Anatomske barijere sastoje se od ko\u017ee i mukoznih membrane ljudskog organizma, odnosno struktura koje su barijerni mehanizam i preveniaju ulazak mnogobrojnih patogena.<\/p>\n<p>&nbsp;<\/p>\n<p>Fiziolo\u0161ke barijere podrazumevaju: temperature (mnogobrojni mikooganizmi elimi\u0161e se usled te reakcije), pH nivo (na primer, \u017eeluda\u010dni aciditet jeste friziolo\u0161ka barijera u uro\u0111enom mehanizmu u borbi potiv infekcije jer minimalni broj mikroorganizama mo\u017ee pre\u017eiveti takve uslove (solubilne lizozomalne protein, interferone, komplemente sposobne za reakciju sa okolnim \u0107elijama i stimualcijom op\u0161teg antivirusnog otpora.<\/p>\n<p>&nbsp;<\/p>\n<p>Endocitoza predstavlja termin koji ozna\u010dava sosobnost \u0107elija da \u2018\u2019zarobi\u2019\u2019 ekstracelularni materijal. Fagocitoza predstavlja vid specijalizovane ingestije tj. Endocitoze koja se sastoji od ekstracelularnih partikula uklju\u010duju\u0107i i patogene mikroorganizme.<\/p>\n<p>Inflamatorne barijere aktiviraju se kao rezultat hemijskih signala emitovanih od napadnutih \u0107elija. One predstavljaju jedan od prvih odbrambenih mehanizama u organizmu protiv patogena.<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>.Proces fagocitoze zapo\u010dinje sa specijalizovanim imunim \u0107elijama koje se nazivaju makrofagi koji se bore protiv patogena. Makrofagi su \u0107elije koje cikuli\u0161u koz cirkulaciju omogu\u0107avaju\u0107i eliminaciju patogena. Kada patogeni mkroorganizam napusti telo, makrofagi se pomeraju ka tkivima u cilju ingestije patogena i njegove razgradnje te posledi\u010dno destrukcije.<\/p>\n<p>&nbsp;<\/p>\n<p>Dodatno, bazofili predstavljaju \u0107elije koje sekretuju histamine, koji \u0161alje signale imunim \u0107elijama o potencijalnom patogenu, dok se prirodne T \u0107elije ubice pronalaze \u0107elije i osloba\u0111aju hemikalije koje razgra\u0111uju i uni\u0161tavaju patogene.<\/p>\n<p>&nbsp;<\/p>\n<h2 id=\"koje-funkcije-poseduej-nespecificni-imunitet\">Koje funkcije poseduej nespecifi\u010dni imunitet ?<\/h2>\n<p>&nbsp;<\/p>\n<p>Uro\u0111eni imunitet predstavlja prvu liniju odbrane kod individual \u010diji imuni sistem nije jo\u0161 uvek dovoljno razvijen ili je nepotpuno razvijen. Predstavlja prvi odgovor oganizma na u vidu prevencije infekcije. Mehanizmi uro\u0111enog imuniteta \u010desto se aktiviraju u cilju eliminacije patogenih uzro\u010dnika \u010dak i sa specifi\u010dnim imunolo\u0161kim odgovorom.<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"featured_media":0,"parent":0,"template":"","Example":[1789],"class_list":["post-80924","enciclopedia","type-enciclopedia","status-publish","hentry","enciclopedia_category-anatomija"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Nonspecific or innate immunity - Humanitas.net<\/title>\n<meta name=\"robots\" content=\"noindex, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<meta property=\"og:locale\" content=\"sr_RS\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Nonspecific or innate immunity - Humanitas.net\" \/>\n<meta property=\"og:description\" content=\"Nespecifi\u010dni ili uro\u0111eni imunitet &nbsp; Nespecifi\u010dni ili uro\u0111eni imunitete predstavlja vid nespecifi\u010dnog imuniteta pisutnog na ro\u0111enju, ili kod osoba \u010diji imunolo\u0161ki mehanizam jo\u0161 uvek nije razvijen te je nemogu\u0107e obezbediti specifi\u010dne i selektivne patogene. 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Poznat je tako\u0111e i kao prirodni, nasledni ili konstitutivni imunitet i kao prva linija odbrane kon neimunizovanih organizama. 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