{"id":5566,"date":"2022-03-03T09:04:55","date_gmt":"2022-03-03T12:04:55","guid":{"rendered":"http:\/\/www.diariodepe.com.br\/xinhua\/?p=5566"},"modified":"2022-03-03T09:04:56","modified_gmt":"2022-03-03T12:04:56","slug":"estudo-mostra-que-anticorpo-covid-19-baseado-em-mrna-fornece-protecao-a-longo-prazo-em-camundongos","status":"publish","type":"post","link":"https:\/\/diariodepe.com.br\/xinhua\/2022\/03\/03\/estudo-mostra-que-anticorpo-covid-19-baseado-em-mrna-fornece-protecao-a-longo-prazo-em-camundongos\/","title":{"rendered":"Estudo mostra que anticorpo COVID-19 baseado em mRNA fornece prote\u00e7\u00e3o a longo prazo em camundongos"},"content":{"rendered":"\n<p>Beijing, 3 mar &#8211; Pesquisadores chineses desenvolveram um anticorpo mRNA que forneceu prote\u00e7\u00e3o a longo prazo contra o SARS-CoV-2 em testes em animais, representando uma terapia promissora \u00e0 base de anticorpos para pacientes com COVID-19.<\/p>\n\n\n\n<p>O estudo, publicado online na revista internacional Cell Research, mostrou que um anticorpo monoclonal humano neutralizante, chamado mRNA-HB27-LNP, forneceu prote\u00e7\u00e3o eficaz contra a infec\u00e7\u00e3o pelo SARS-CoV-2 em camundongos por at\u00e9 63 dias ap\u00f3s a administra\u00e7\u00e3o.<\/p>\n\n\n\n<p>Pesquisadores da Academia de Ci\u00eancias M\u00e9dicas Militares e da Suzhou Abogen Biosciences Co., Ltd. fizeram o anticorpo em uma plataforma de tecnologia mRNA bem estabelecida.<\/p>\n\n\n\n<p>Eles testaram o efeito protetor do anticorpo com doses diferentes e descobriram que todos os animais que receberam 1 mg\/kg ou 0,2 mg\/kg de mRNA-HB27-LNP sobreviveram sem nenhum sintoma cl\u00ednico. O tratamento com 0,04 mg\/kg do anticorpo tamb\u00e9m atingiu uma taxa de sobreviv\u00eancia de 80%, e apenas uma inflama\u00e7\u00e3o m\u00ednima ou muito leve foi observada.<\/p>\n\n\n\n<p>O tratamento mRNA-HB27-LNP tamb\u00e9m ofereceu prote\u00e7\u00e3o completa contra a variante SARS-CoV-2 Beta em modelos animais no estudo.<\/p>\n\n\n\n<p>Al\u00e9m disso, o anticorpo baseado em tecnologia mRNA protegeu 50% dos camundongos do SARS-CoV-2 at\u00e9 mesmo 63 dias ap\u00f3s a administra\u00e7\u00e3o, oferecendo prote\u00e7\u00e3o muito mais longa em compara\u00e7\u00e3o com os anticorpos proteicos tradicionais.<\/p>\n\n\n\n<p>Esses resultados com o mRNA-HB27-LNP apoiam o desenvolvimento cl\u00ednico adicional para sua potencial aplica\u00e7\u00e3o na preven\u00e7\u00e3o da COVID-19, de acordo com o estudo.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Beijing, 3 mar &#8211; Pesquisadores chineses desenvolveram um anticorpo mRNA que forneceu prote\u00e7\u00e3o a longo prazo contra o SARS-CoV-2 em testes em animais, representando uma terapia promissora \u00e0 base de anticorpos para pacientes com COVID-19. O estudo, publicado online na&#8230;<\/p>\n","protected":false},"author":3,"featured_media":5567,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6],"tags":[],"class_list":["post-5566","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-cultura-tecnologia"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Estudo mostra que anticorpo COVID-19 baseado em mRNA fornece prote\u00e7\u00e3o a longo prazo em camundongos - Xinhua - Diario de Pernambuco<\/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:\/\/diariodepe.com.br\/xinhua\/2022\/03\/03\/estudo-mostra-que-anticorpo-covid-19-baseado-em-mrna-fornece-protecao-a-longo-prazo-em-camundongos\/\" \/>\n<meta property=\"og:locale\" content=\"pt_BR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Estudo mostra que anticorpo COVID-19 baseado em mRNA fornece prote\u00e7\u00e3o a longo prazo em camundongos - Xinhua - Diario de Pernambuco\" \/>\n<meta property=\"og:description\" content=\"Beijing, 3 mar &#8211; Pesquisadores chineses desenvolveram um anticorpo mRNA que forneceu prote\u00e7\u00e3o a longo prazo contra o SARS-CoV-2 em testes em animais, representando uma terapia promissora \u00e0 base de anticorpos para pacientes com COVID-19. 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