{"id":1992,"date":"2012-10-01T18:49:20","date_gmt":"2012-10-01T17:49:20","guid":{"rendered":"http:\/\/blogs.funiber.org\/pt\/?p=1992"},"modified":"2012-10-04T20:05:05","modified_gmt":"2012-10-04T19:05:05","slug":"celulas-tronco-sao-identificadas-no-cancer","status":"publish","type":"post","link":"https:\/\/www.funiber.blog\/pt\/saude-e-nutricao\/2012\/10\/01\/celulas-tronco-sao-identificadas-no-cancer","title":{"rendered":"C\u00e9lulas-tronco s\u00e3o identificadas no c\u00e2ncer"},"content":{"rendered":"<p>De acordo com os resultados obtidos por tr\u00eas equipes que estudaram a evolu\u00e7\u00e3o do c\u00e2ncer, da mesma forma que as c\u00e9lulas-tronco interv\u00eam na forma\u00e7\u00e3o de novos tecidos, existe um tipo de c\u00e9lula que poderia ativar o desenvolvimento de tumores. Os grupos de pesquisa eram dos Estados Unidos, Holanda e B\u00e9lgica, e os resultados dos estudos foram publicados na revista Nature.com. Suas descobertas permitiram o desenvolvimento de tratamentos espec\u00edficos para eliminar as c\u00e9lulas-tronco ao inv\u00e9s de atacar todo o tumor.\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 <!--more-->Uma das equipes de pesquisa, sob a dire\u00e7\u00e3o do doutor Luis Parada, da Universidade do Texas, nos Estados Unidos, conseguiu rastrear as c\u00e9lulas-tronco cancer\u00edgenas utilizando um marcador gen\u00e9tico, estudando a evolu\u00e7\u00e3o de um Glioblastoma, cuja as c\u00e9lulas eram resistentes \u00e0 quimioterapia e o tumor se restaurava a cada vez que o tratamento era aplicado. Ao aplicar uma t\u00e9cnica gen\u00e9tica para suprimir as c\u00e9lulas-tronco cancer\u00edgenas era poss\u00edvel manter o c\u00e2ncer em estado residual.<\/p>\n<p>Hans Clevers, bi\u00f3logo de c\u00e9lulas-tronco do Instituto Hubrecht no Utrecht, Holanda utilizou uma subst\u00e2ncia florescente para marcar as c\u00e9lulas de um tumor intestinal, logo as c\u00e9lulas-tronco do tumor foram detectadas e marcadas com uma cor distinta, para depois identificar a forma em que a cor das c\u00e9lulas-tronco eram transferidas \u00e0s novas c\u00e9lulas cancer\u00edgenas.<\/p>\n<p>A equipe do C\u00e9dric Blanpain, da Universidade Livre de Bruxelas, concentrou-se na pesquisa da divis\u00e3o de c\u00e9lulas em um c\u00e2ncer de pele. Os pesquisadores identificaram que as c\u00e9lulas-tronco utilizam dois tipos de divis\u00e3o: uma c\u00e9lula produz um pequeno n\u00famero de c\u00e9lulas antes de se extinguir, enquanto que a outra se multiplica de forma indefinida. P\u00f4de-se identificar tamb\u00e9m que \u00e0 medida que um tumor se tornava mais agressivo se se aumentava tamb\u00e9m a produ\u00e7\u00e3o de c\u00e9lulas- tronco.\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 <!--more--><\/p>\n<p>Por sua parte, Robert Weinberg, doutor especializado em pesquisa sobre o c\u00e2ncer no Instituto Whitehead de Cambridge, nos Estados Unidos, considera que ainda falta muito trabalho para desenvolver tratamentos relacionados \u00e0s descobertas destas tr\u00eas equipes. Weinberg assegura que o processo de gera\u00e7\u00e3o das c\u00e9lulas-tronco poderia ser mais complexo, por exemplo, esse tipo de c\u00e9lulas poderia ter sua origem em c\u00e9lulas cancer\u00edgenas gen\u00e9ricas.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>De acordo com os resultados obtidos por tr\u00eas equipes que estudaram a evolu\u00e7\u00e3o do c\u00e2ncer, da mesma forma que as c\u00e9lulas-tronco interv\u00eam na forma\u00e7\u00e3o de novos tecidos, existe um tipo de c\u00e9lula que poderia ativar o desenvolvimento de tumores. Os grupos de pesquisa eram dos Estados Unidos, Holanda e B\u00e9lgica, e os resultados dos estudos [&hellip;]<\/p>\n","protected":false},"author":13,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_newsletter_tier_id":0,"footnotes":"","jetpack_publicize_message":"","jetpack_is_tweetstorm":false,"jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","enabled":false}}},"categories":[3],"tags":[],"jetpack_publicize_connections":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.7 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>C\u00e9lulas-tronco s\u00e3o identificadas no c\u00e2ncer - FuniBlogs - FUNIBER<\/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:\/\/blogs.funiber.org\/pt\/saude-e-nutricao\/2012\/10\/01\/celulas-tronco-sao-identificadas-no-cancer\" \/>\n<meta property=\"og:locale\" content=\"pt_BR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"C\u00e9lulas-tronco s\u00e3o identificadas no c\u00e2ncer - FuniBlogs - FUNIBER\" \/>\n<meta property=\"og:description\" content=\"De acordo com os resultados obtidos por tr\u00eas equipes que estudaram a evolu\u00e7\u00e3o do c\u00e2ncer, da mesma forma que as c\u00e9lulas-tronco interv\u00eam na forma\u00e7\u00e3o de novos tecidos, existe um tipo de c\u00e9lula que poderia ativar o desenvolvimento de tumores. 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