{"id":12514,"date":"2025-10-10T15:24:36","date_gmt":"2025-10-10T18:24:36","guid":{"rendered":"https:\/\/fenati.org.br\/?p=12514"},"modified":"2025-10-10T17:20:06","modified_gmt":"2025-10-10T20:20:06","slug":"vacina-experimental-eficacia-contra-cancer","status":"publish","type":"post","link":"https:\/\/homolog.fenati.org.br\/en\/vacina-experimental-eficacia-contra-cancer\/","title":{"rendered":"Vacina experimental mostra efic\u00e1cia de 88% contra formas agressivas de c\u00e2ncer"},"content":{"rendered":"<p><strong>Vacina experimental &#8211;<\/strong> Pesquisadores da Universidade de Massachusetts (UMass) Amherst, nos <a href=\"https:\/\/pt.wikipedia.org\/wiki\/Estados_Unidos\" target=\"_blank\" rel=\"noopener\">Estados Unidos<\/a>, anunciaram resultados animadores de uma nova vacina experimental capaz de combater formas agressivas de c\u00e2ncer. Baseado em nanopart\u00edculas imunoestimulantes, o imunizante apresentou efic\u00e1cia de 88% nos testes realizados em camundongos, especialmente contra o melanoma e o c\u00e2ncer de p\u00e2ncreas, dois dos tumores mais resistentes aos tratamentos convencionais.<\/p>\n<p>A inova\u00e7\u00e3o da vacina est\u00e1 na forma como ela ativa o sistema imunol\u00f3gico. O composto utiliza uma nanopart\u00edcula lip\u00eddica que carrega duas mol\u00e9culas imunoestimulantes, capazes de acionar tanto a resposta inata \u2014 que atua de maneira imediata contra amea\u00e7as \u2014 quanto a resposta adaptativa, respons\u00e1vel por gerar uma defesa mais duradoura e espec\u00edfica.<\/p>\n<p><a href=\"https:\/\/fenati.org.br\/byd-fabrica-produzir-600-mil-veiculos-ano-brasil\/\" target=\"_blank\" rel=\"noopener\"><strong>LEIA: BYD inaugura f\u00e1brica e quer produzir 600 mil ve\u00edculos por ano no Brasil<\/strong><\/a><\/p>\n<p>De acordo com os cientistas, essa combina\u00e7\u00e3o garante uma rea\u00e7\u00e3o coordenada e mais eficiente do organismo, ampliando a capacidade de eliminar c\u00e9lulas cancer\u00edgenas.<\/p>\n<p>Durante os experimentos, os camundongos receberam tr\u00eas doses da vacina, administradas junto a fragmentos tumorais, conhecidos como pept\u00eddeos ou lisados celulares, para reproduzir o ambiente real de um tumor. Ap\u00f3s o tratamento, os resultados mostraram que os animais n\u00e3o apresentaram retorno da doen\u00e7a mesmo ap\u00f3s meses, o que indica uma resposta imune prolongada.<\/p>\n<p><strong>Perspectivas<\/strong><\/p>\n<p>Apesar dos avan\u00e7os, os pesquisadores refor\u00e7am que o estudo ainda est\u00e1 em fase inicial e que mais testes ser\u00e3o necess\u00e1rios para confirmar a seguran\u00e7a e a efic\u00e1cia do imunizante em humanos. Ainda assim, os resultados iniciais s\u00e3o considerados um passo importante na busca por terapias mais eficazes e menos invasivas.<\/p>\n<p>Publicada na revista Cell Reports Medicine, a pesquisa abre caminho para o desenvolvimento de novas estrat\u00e9gias de imunoterapia, capazes de transformar o tratamento de tumores agressivos no futuro.<\/p>\n<p><em><strong>(Com informa\u00e7\u00f5es de Olhar Digital)<\/strong><\/em><br \/>\n<em><strong>(Foto: Reprodu\u00e7\u00e3o\/Freepik\/EyeEm)<\/strong><\/em><\/p>","protected":false},"excerpt":{"rendered":"<p>Imunizante utiliza nanopart\u00edculas para estimular o sistema imunol\u00f3gico e conter o avan\u00e7o de c\u00e2nceres como melanoma e p\u00e2ncreas<\/p>","protected":false},"author":6,"featured_media":12515,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[42],"tags":[13],"class_list":["post-12514","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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