{"id":26601,"date":"2023-03-02T10:34:57","date_gmt":"2023-03-02T13:34:57","guid":{"rendered":"https:\/\/mindthegraph.com\/blog\/understanding-cervical-cancer-copy\/"},"modified":"2023-03-09T17:59:22","modified_gmt":"2023-03-09T20:59:22","slug":"crispr-therapy","status":"publish","type":"post","link":"https:\/\/mindthegraph.com\/blog\/sl\/terapija-crispr\/","title":{"rendered":"Kako deluje terapija CRISPR pri genski terapiji?"},"content":{"rendered":"<p>Rak je \u017ee dolgo te\u017eka in raznolika bolezen, ki jo povzro\u010dajo spremembe v posameznikovi DNK, ki aktivirajo onkogene in hkrati inaktivirajo tumorske supresorje, kar povzro\u010da tudi disregulacijo epigenoma, ki je odgovoren za koordinacijo normalnega izra\u017eanja genov.<\/p>\n\n\n\n<p>\u010ce povzamemo, je rak bolezen celic, ki povzro\u010di spremembe v presnovi in celi\u010dni strukturi, zaradi \u010desar so te celice tako po\u0161kodovane, da ne delujejo ve\u010d pravilno in se izogibajo gostiteljevim obrambnim mehanizmom.&nbsp;<\/p>\n\n\n\n<p>\u0160tevilni strokovnjaki in profesionalci posve\u010dajo svoje poklicne poti raziskovanju raka, da bi popolnoma razumeli vse njegove zapletenosti in nejasnosti. Spoznavanje spreminjanja genoma, prilagajanja celice in nastanka bolezni je eden klju\u010dnih dejavnikov za razvoj u\u010dinkovitej\u0161ih na\u010dinov zdravljenja in izbolj\u0161anje rezultatov za bolnike z rakom.&nbsp;<\/p>\n\n\n\n<p>Terapija CRISPR se je uveljavila kot tehnika za raziskovanje delovanja celic in je pomembno vplivala na raziskave raka, saj je prinesla nova spoznanja, ki naj bi pospe\u0161ila diagnosticiranje in zdravljenje.&nbsp;<\/p>\n\n\n\n<h2>Kaj je terapija CRISPR?<\/h2>\n\n\n\n<p>Odkar so znanstveniki odkrili, da spremembe v DNK povzro\u010dajo raka, so iskali na\u010din, kako te spremembe odpraviti z manipulacijo DNK. Eden od najdenih pristopov je terapija CRISPR.<\/p>\n\n\n\n<p>Z metodo CRISPR je mogo\u010de urejati DNK \u010dlove\u0161kih celic na enak na\u010din kot z izjemno natan\u010dnimi in enostavnimi \u0161karjami. CRISPR ureja gene tako, da previdno prere\u017ee DNK in nato sistemati\u010dno dovoli, da se DNK popravi.&nbsp;<\/p>\n\n\n\n<div style=\"height:18px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img decoding=\"async\" loading=\"lazy\" width=\"651\" height=\"174\" src=\"https:\/\/mindthegraph.com\/blog\/wp-content\/uploads\/2023\/02\/banner-blog-trial-03.jpg\" alt=\"\" class=\"wp-image-26762\" srcset=\"https:\/\/mindthegraph.com\/blog\/wp-content\/uploads\/2023\/02\/banner-blog-trial-03.jpg 651w, https:\/\/mindthegraph.com\/blog\/wp-content\/uploads\/2023\/02\/banner-blog-trial-03-300x80.jpg 300w, https:\/\/mindthegraph.com\/blog\/wp-content\/uploads\/2023\/02\/banner-blog-trial-03-18x5.jpg 18w, https:\/\/mindthegraph.com\/blog\/wp-content\/uploads\/2023\/02\/banner-blog-trial-03-100x27.jpg 100w\" sizes=\"(max-width: 651px) 100vw, 651px\" \/><\/figure><\/div>\n\n\n<div style=\"height:18px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2>Kako deluje terapija CRISPR?<\/h2>\n\n\n\n<p>Tehnika CRISPR v laboratoriju vklju\u010duje dva klju\u010dna elementa: vodilno RNK in encim za rezanje DNK, najpogosteje Cas9.<\/p>\n\n\n\n<p>\u010ce \u017eelite z genetskimi \u0161karjami CRISPR spremeniti genom, je treba najprej najti zaporedje DNK, ki ga je treba spremeniti. Ko je ustrezno zaporedje DNK identificirano, ga prepozna in se nanj pove\u017ee ena vodilna RNK (sgRNA).&nbsp;<\/p>\n\n\n\n<p>Vodilno zaporedje RNK dopolnjuje ciljno zaporedje DNK. To pomeni, da se vodilna RNK v idealnem primeru pove\u017ee samo s ciljnim zaporedjem DNK in se ne pove\u017ee z drugimi deli genoma.&nbsp;<\/p>\n\n\n\n<p>Encim Cas9 (beljakovina molekularnih \u0161karij) se pove\u017ee z RNK in vodi \u0161karje do to\u010dno dolo\u010denega mesta v genomu, kjer je treba opraviti rez.&nbsp;<\/p>\n\n\n\n<p>Ta proces popravljanja se lahko izvede tako, da se spremeni DNK na tem mestu v genomu. Gen je na primer mogo\u010de odstraniti ali posodobiti, da se popravijo morebitne napake v njegovem zaporedju.<\/p>\n\n\n\n<p>Glede na to, kako je sistem CRISPR programiran, so mo\u017eni trije izidi, ko je ciljno zaporedje prerezano:&nbsp;<\/p>\n\n\n\n<ol>\n<li>V DNK se vnese mutacija, ki zaceli rez.&nbsp;<\/li>\n\n\n\n<li>Encimi so zasnovani tako, da naredijo reze na obeh straneh ciljne DNK, da odstranijo ciljno DNK in ponovno pove\u017eejo konce.&nbsp;<\/li>\n\n\n\n<li>Segment HDR se lahko vstavi v genom s homologno rekombinacijo.<a href=\"https:\/\/www.researchgate.net\/profile\/Konda-Mani-Saravanan\/publication\/355845141\/figure\/fig3\/AS:1128285891235840@1646015727249\/Mechanism-of-action-of-CRISPR-Cas9-techniques-CRIPSPR-Cas9-gene-with-cleavage-activities.png\"><\/a><\/li>\n<\/ol>\n\n\n\n<div style=\"height:18px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" loading=\"lazy\" width=\"1024\" height=\"896\" src=\"https:\/\/mindthegraph.com\/blog\/wp-content\/uploads\/2023\/02\/crispr-cas9-gene-editing-1024x896.jpg\" alt=\"\" class=\"wp-image-27027\" srcset=\"https:\/\/mindthegraph.com\/blog\/wp-content\/uploads\/2023\/02\/crispr-cas9-gene-editing-1024x896.jpg 1024w, https:\/\/mindthegraph.com\/blog\/wp-content\/uploads\/2023\/02\/crispr-cas9-gene-editing-300x263.jpg 300w, https:\/\/mindthegraph.com\/blog\/wp-content\/uploads\/2023\/02\/crispr-cas9-gene-editing-768x672.jpg 768w, https:\/\/mindthegraph.com\/blog\/wp-content\/uploads\/2023\/02\/crispr-cas9-gene-editing-14x12.jpg 14w, https:\/\/mindthegraph.com\/blog\/wp-content\/uploads\/2023\/02\/crispr-cas9-gene-editing-100x88.jpg 100w, https:\/\/mindthegraph.com\/blog\/wp-content\/uploads\/2023\/02\/crispr-cas9-gene-editing.jpg 1123w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\"><em>Izdelano z <a href=\"https:\/\/mindthegraph.com\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>Mind the Graph<\/strong><\/a><\/em><\/figcaption><\/figure>\n\n\n\n<div style=\"height:18px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2>Kak\u0161ni so pomisleki glede CRISPR?<\/h2>\n\n\n\n<ul>\n<li>Vnos CRISPR-a v celice je izziv. Znanstveniki so odkrili tehniko, kako to dose\u010di z uporabo virusa, ki je bil mutiran tako, da nosi gene za vodilno RNK in Cas9. Ker lahko nekateri virusi oku\u017eijo razli\u010dne vrste celic, lahko na koncu spremenijo na primer mi\u0161i\u010dne celice, \u010deprav je bil njihov namen spremeniti jetrne celice.<\/li>\n\n\n\n<li>CRISPR se \u0161ele zdaj preizku\u0161a na ljudeh, zato znanstvenike skrbi, kako se bosta telo in imunski sistem odzvala na viruse, ki vsebujejo CRISPR, ali na same elemente CRISPR. Ker gre za elemente, ki jih ljudje ne poznajo, lahko imunski sistem napade in uni\u010di celice, urejene s CRISPR.<\/li>\n\n\n\n<li>CRISPR ob\u010dasno prekine DNK zunaj ciljnega gena, kar je znano kot \"off-target\" rezanje. Znanstveniki so zaskrbljeni, da so tak\u0161ne nenamerne spremembe lahko preve\u010d \u0161kodljive in celo rakave.<\/li>\n\n\n\n<li>Drugo pomembno vpra\u0161anje je, da lahko spreminjanje celic v telesu nenamerno spremeni semenske ali jaj\u010dne celice, ki se lahko prenesejo na prihodnje generacije.<\/li>\n<\/ul>\n\n\n\n<h3>Eti\u010dna vpra\u0161anja<\/h3>\n\n\n\n<p>Zdravljenje s CRISPR spro\u017ea tudi eti\u010dne pomisleke. V nadaljevanju si oglejte nekatere eti\u010dne pomisleke:<\/p>\n\n\n\n<ul>\n<li>Kot \u017ee re\u010deno, lahko spreminjanje celic v telesu pomotoma vpliva na spermo ali jaj\u010dne celice, kar se lahko prenese na prihodnje generacije. Namesto da bi zdravili bolezni, bi lahko te spremembe hipoteti\u010dno uporabili za izbolj\u0161anje \u017eelenih lastnosti.&nbsp;<\/li>\n\n\n\n<li>\u0160tevilni posamezniki moralno in versko nasprotujejo uporabi \u010dlove\u0161kih zarodkov v raziskavah. Na splo\u0161no lahko raziskave zarodkov vklju\u010dujejo vitalne ali ne\u017eivljenjske zarodke, ki ostanejo po umetni oploditvi, ali zarodke, ustvarjene posebej za raziskavo. Vsak primer je povezan s posebnimi eti\u010dnimi pomisleki.<\/li>\n\n\n\n<li>Obstaja bojazen, da bo urejanje genoma omejeno na bogate, kar bo \u0161e poslab\u0161alo obstoje\u010de razlike v dostopu do zdravstvenega varstva in drugih na\u010dinov zdravljenja.<\/li>\n<\/ul>\n\n\n\n<h2>Ne izgubljajte \u010dasa! Platforma je enostavna za uporabo in jo lahko uporablja skoraj vsakdo.<\/h2>\n\n\n\n<p>Z enostavnim orodjem za uporabo ustvarite osupljive infografike, ilustracije ali celo spremenite svoje delo v \u010dudovit in razumljiv plakat. <a href=\"https:\/\/mindthegraph.com\" target=\"_blank\" rel=\"noreferrer noopener\">Opazujte graf<\/a> je ustrezno orodje za vas; uporabite lahko predloge ali celo zahtevate predlogo, ki se natan\u010dno ujema z va\u0161im delovnim mestom, kot ste si ga zamislili!<\/p>\n\n\n\n<div style=\"height:18px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img decoding=\"async\" loading=\"lazy\" width=\"600\" height=\"338\" src=\"https:\/\/mindthegraph.com\/blog\/wp-content\/uploads\/2022\/10\/r3qiu0qenda-3.gif\" alt=\"\" class=\"wp-image-25130\"\/><\/figure><\/div>\n\n\n<div style=\"height:18px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<div class=\"is-layout-flex wp-block-buttons\">\n<div class=\"wp-block-button aligncenter\"><a class=\"wp-block-button__link has-background wp-element-button\" href=\"https:\/\/mindthegraph.com\/\" style=\"border-radius:50px;background-color:#dc1866\" target=\"_blank\" rel=\"noreferrer noopener\">Pove\u010dajte \u0161tevilo mojih raziskav z ilustracijami<\/a><\/div>\n<\/div>\n\n\n\n<div style=\"height:44px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<div style=\"height:25px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p><\/p>","protected":false},"excerpt":{"rendered":"<p>Spoznajte, kaj je CRISPR in kako se lahko ta genska terapija uporablja za spreminjanje DNK, kar izbolj\u0161a zdravljenje raka.<\/p>","protected":false},"author":28,"featured_media":26609,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[959,28],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast 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