{"id":12597,"date":"2025-10-14T15:00:44","date_gmt":"2025-10-14T18:00:44","guid":{"rendered":"https:\/\/fenati.org.br\/?p=12597"},"modified":"2025-10-15T10:33:46","modified_gmt":"2025-10-15T13:33:46","slug":"cientistas-sangue-humano-laboratorio-celulas-tronco","status":"publish","type":"post","link":"https:\/\/homolog.fenati.org.br\/en\/cientistas-sangue-humano-laboratorio-celulas-tronco\/","title":{"rendered":"Cientistas criam sangue humano em laborat\u00f3rio usando c\u00e9lulas-tronco"},"content":{"rendered":"<p><strong>C\u00e9lulas-tronco &#8211;<\/strong> Pesquisadores da Universidade de Cambridge desenvolveram um m\u00e9todo in\u00e9dito para recriar sangue humano em laborat\u00f3rio. O estudo, publicado na revista <em>Cell Reports<\/em>, descreve como a equipe conseguiu imitar o processo natural de forma\u00e7\u00e3o de sangue observado em embri\u00f5es, utilizando <a href=\"https:\/\/pt.wikipedia.org\/wiki\/C%C3%A9lula_estaminal\" target=\"_blank\" rel=\"noopener\">c\u00e9lulas-tronco<\/a> humanas.<\/p>\n<p>A t\u00e9cnica permite produzir estruturas tridimensionais semelhantes a embri\u00f5es, batizadas de \u201chematoides\u201d. A partir delas, \u00e9 poss\u00edvel observar os est\u00e1gios iniciais do desenvolvimento humano sem recorrer a \u00f3vulos ou espermatozoides, um avan\u00e7o importante para a ci\u00eancia.<\/p>\n<p><a href=\"https:\/\/fenati.org.br\/escalada-das-fraudes-impulsiona-uso-ia-protecao\/\" target=\"_blank\" rel=\"noopener\"><strong>LEIA: Escalada das fraudes no Brasil impulsiona uso de IA na prote\u00e7\u00e3o<\/strong><\/a><\/p>\n<p>Segundo o The Guardian, os hematoides levam cerca de dez dias para come\u00e7ar a produzir sangue. O processo \u00e9 gradual: ap\u00f3s dois dias, as c\u00e9lulas se organizam em tr\u00eas camadas fundamentais, ectoderme, mesoderme e endoderme, respons\u00e1veis pela forma\u00e7\u00e3o dos \u00f3rg\u00e3os e sistemas. Oito dias depois, surgem as primeiras c\u00e9lulas card\u00edacas pulsantes, e, por volta do d\u00e9cimo dia, aparecem as manchas vermelho-sangue.<\/p>\n<p>\u201cFoi um momento emocionante quando a cor vermelho-sangue apareceu, era vis\u00edvel at\u00e9 a olho nu\u201d, conta Jitesh Neupane, primeiro autor do estudo.<\/p>\n<p>Al\u00e9m de ajudar a compreender melhor a forma\u00e7\u00e3o do sangue humano, a t\u00e9cnica pode ter aplica\u00e7\u00f5es m\u00e9dicas amplas. Como as c\u00e9lulas-tronco usadas podem ser obtidas de qualquer c\u00e9lula do corpo, o m\u00e9todo abre a possibilidade de produzir sangue totalmente compat\u00edvel com o paciente, reduzindo o risco de rejei\u00e7\u00e3o em transfus\u00f5es ou terapias regenerativas.<\/p>\n<p>\u201cEmbora ainda esteja em est\u00e1gios iniciais, a capacidade de produzir c\u00e9lulas sangu\u00edneas humanas em laborat\u00f3rio marca um passo significativo em dire\u00e7\u00e3o a futuras terapias regenerativas\u201d, afirma Azim Surani, autor s\u00eanior do artigo.<\/p>\n<p><em><strong>(Com informa\u00e7\u00f5es de Olhar Digital)<\/strong><\/em><br \/>\n<em><strong>(Foto: Reprodu\u00e7\u00e3o)<\/strong><\/em><\/p>","protected":false},"excerpt":{"rendered":"<p>Sangue \u00e9 produzido por estruturas semelhantes a embri\u00f5es criadas em laborat\u00f3rio a partir de c\u00e9lulas humanas<\/p>","protected":false},"author":10,"featured_media":12598,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[42],"tags":[13],"class_list":["post-12597","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-noticias","tag-sindical"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.8 - 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