{"id":67249,"date":"2025-11-21T02:43:38","date_gmt":"2025-11-21T05:43:38","guid":{"rendered":"https:\/\/www.p31noticias.com.br\/?p=67249"},"modified":"2025-11-21T02:43:38","modified_gmt":"2025-11-21T05:43:38","slug":"pesquisa-revela-beneficios-do-veneno-das-vespas-em-novos-medicamentos-para-doencas-neurodegenerativas","status":"publish","type":"post","link":"https:\/\/www.p31noticias.com.br\/?p=67249","title":{"rendered":"Pesquisa revela benef\u00edcios do veneno das vespas em novos medicamentos para doen\u00e7as neurodegenerativas"},"content":{"rendered":"<p style=\"text-align: justify;\"><em><strong>Estudo da Universidade de Bras\u00edlia, apoiada pela FAPDF, transforma pept\u00eddeos derivados do inseto em candidatos a novos tratamentos para epilepsia, Alzheimer e Parkinson<\/strong><\/em><\/p>\n<p dir=\"ltr\" style=\"text-align: justify;\">As doen\u00e7as neurodegenerativas \u2014 como a Doen\u00e7a de Alzheimer (DA), a Doen\u00e7a de Parkinson (DP) e a Epilepsia do Lobo Temporal (ELT) \u2014 est\u00e3o entre os maiores desafios da sa\u00fade p\u00fablica contempor\u00e2nea. S\u00e3o condi\u00e7\u00f5es progressivas e de alto impacto social, para as quais ainda n\u00e3o existem terapias capazes de impedir a evolu\u00e7\u00e3o da doen\u00e7a.<\/p>\n<p dir=\"ltr\" style=\"text-align: justify;\">\u00c9 nesse contexto que surge o projeto \u201cNovos tratamentos bioinspirados e associados \u00e0 nanotecnologia, educa\u00e7\u00e3o e preven\u00e7\u00e3o contra as Doen\u00e7as Neurodegenerativas\u201d, com apoio da Funda\u00e7\u00e3o de Apoio \u00e0 Pesquisa do Distrito Federal (FAPDF) em parceria com o Conselho Nacional de Desenvolvimento Cient\u00edfico e Tecnol\u00f3gico (CNPq), por meio do edital Programa de Apoio a N\u00facleos Emergentes (Pronem) de 2020.<\/p>\n<figure class=\"image\"><picture data-fileentryid=\"27845338\"><source srcset=\"\/o\/adaptive-media\/image\/27845338\/Thumbnail-300x300\/WhatsApp+Image+2025-11-20+at+14.52.03.jpeg?t=1763671944548\" media=\"(max-width:300px)\" \/><source srcset=\"\/o\/adaptive-media\/image\/27845338\/Preview-1000x0\/WhatsApp+Image+2025-11-20+at+14.52.03.jpeg?t=1763671944548\" media=\"(max-width:1000px) and (min-width:300px)\" \/><\/picture><picture data-fileentryid=\"27845338\"><source srcset=\"\/o\/adaptive-media\/image\/27845338\/Thumbnail-300x300\/WhatsApp+Image+2025-11-20+at+14.52.03.jpeg?t=1763671944548\" media=\"(max-width:300px)\" \/><source srcset=\"\/o\/adaptive-media\/image\/27845338\/Preview-1000x0\/WhatsApp+Image+2025-11-20+at+14.52.03.jpeg?t=1763671944548\" media=\"(max-width:1000px) and (min-width:300px)\" \/><img decoding=\"async\" src=\"https:\/\/www.agenciabrasilia.df.gov.br\/documents\/d\/guest\/whatsapp-image-2025-11-20-at-14-52-03-jpeg\" alt=\"\" data-fileentryid=\"27845338\" data-gdf-processed=\"true\" \/><\/picture><figcaption><img decoding=\"async\" src=\"https:\/\/www.agenciabrasilia.df.gov.br\/documents\/d\/guest\/whatsapp-image-2025-11-20-at-14-52-03-jpeg\" \/>Pesquisa apoiada pela FAPDF estuda como compostos neuroativos encontrados em pe\u00e7onhas de insetos podem orientar o desenvolvimento de novos medicamentos\u00a0| Foto: Pixabay\/Divulga\u00e7\u00e3o\/ND<\/figcaption><\/figure>\n<p dir=\"ltr\" style=\"text-align: justify;\">Segundo a pesquisadora, a observa\u00e7\u00e3o do comportamento das vespas sociais levou \u00e0 hip\u00f3tese de que sua pe\u00e7onha poderia conter mol\u00e9culas com a\u00e7\u00e3o sobre o sistema nervoso.<\/p>\n<p dir=\"ltr\" style=\"text-align: justify;\">Essas vespas, como a esp\u00e9cie\u00a0<em>Polybia occidentalis<\/em>, utilizam o veneno para paralisar presas, indicando a presen\u00e7a de compostos que afetam diretamente a atividade neuronal. A partir disso, o grupo formulou a hip\u00f3tese de que tais mol\u00e9culas poderiam ser purificadas e testadas contra doen\u00e7as neurol\u00f3gicas e neurodegenerativas, dando origem \u00e0 plataforma de pept\u00eddeos estudados no projeto.<\/p>\n<p dir=\"ltr\" style=\"text-align: justify;\">O termo pept\u00eddeo refere-se a pequenas cadeias de amino\u00e1cidos \u2014 mol\u00e9culas menores que prote\u00ednas \u2014 capazes de interagir de forma muito espec\u00edfica com estruturas celulares, o que as torna candidatas interessantes para o desenvolvimento de f\u00e1rmacos mais seletivos e seguros.<\/p>\n<p dir=\"ltr\" style=\"text-align: justify;\"><strong>Pept\u00eddeos inovadores<\/strong><\/p>\n<p dir=\"ltr\" style=\"text-align: justify;\">Os tr\u00eas pept\u00eddeos bioinspirados desenvolvidos pela rede t\u00eam apresentado resultados expressivos:<\/p>\n<p dir=\"ltr\" style=\"text-align: justify;\">\u2022\u00a0<strong>Neurovespina<\/strong>\u00a0\u2014 Investigada por seu potencial antiepil\u00e9ptico e neuroprotetor;<br \/>\n\u2022\u00a0<strong>Fraternina<\/strong>\u00a0\u2014 Com atividade neuroprotetora em modelos de Doen\u00e7a de Parkinson;<br \/>\n\u2022\u00a0<strong>Octovespina<\/strong>\u00a0\u2014 Capaz de interferir na agrega\u00e7\u00e3o de beta-amiloide, prote\u00edna que se acumula no c\u00e9rebro em casos de Alzheimer.<\/p>\n<p dir=\"ltr\" style=\"text-align: justify;\">No caso da epilepsia refrat\u00e1ria \u2014 quando as crises n\u00e3o respondem adequadamente aos tratamentos convencionais \u2014, a Neurovespina j\u00e1 avan\u00e7ou para ensaios cl\u00ednicos em c\u00e3es, conduzidos em parceria com o Hospital Veterin\u00e1rio (HVet).<\/p>\n<p dir=\"ltr\" style=\"text-align: justify;\">Os estudos experimentais tamb\u00e9m investigaram o impacto da Neurovespina em regi\u00f5es como o hipocampo e a subst\u00e2ncia negra, \u00e1reas essenciais para mem\u00f3ria, regula\u00e7\u00e3o el\u00e9trica do c\u00e9rebro e controle motor. A subst\u00e2ncia negra, por exemplo, \u00e9 uma das regi\u00f5es mais afetadas na Doen\u00e7a de Parkinson, por abrigar neur\u00f4nios dopamin\u00e9rgicos essenciais ao movimento.<\/p>\n<figure class=\"image\" style=\"text-align: justify;\"><picture data-fileentryid=\"27844988\"><source srcset=\"\/o\/adaptive-media\/image\/27844988\/Thumbnail-300x300\/image+%28152%29.png?t=1763671271937\" media=\"(max-width:300px)\" \/><source srcset=\"\/o\/adaptive-media\/image\/27844988\/Preview-1000x0\/image+%28152%29.png?t=1763671271937\" media=\"(max-width:784px) and (min-width:300px)\" \/><\/picture><picture data-fileentryid=\"27844988\"><source srcset=\"\/o\/adaptive-media\/image\/27844988\/Thumbnail-300x300\/image+%28152%29.png?t=1763671271937\" media=\"(max-width:300px)\" \/><source srcset=\"\/o\/adaptive-media\/image\/27844988\/Preview-1000x0\/image+%28152%29.png?t=1763671271937\" media=\"(max-width:784px) and (min-width:300px)\" \/><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.agenciabrasilia.df.gov.br\/documents\/d\/guest\/image-152-png\" alt=\"\" width=\"1166\" height=\"791\" data-fileentryid=\"27844988\" data-gdf-processed=\"true\" \/><\/picture><figcaption>Exemplo de um pept\u00eddeo bioinspirado da pe\u00e7onha de vespas | Imagem: Acervo pessoal\/M\u00e1rcia Mortari<\/figcaption><\/figure>\n<p dir=\"ltr\" style=\"text-align: justify;\"><strong>O papel da nanotecnologia<\/strong><\/p>\n<p dir=\"ltr\" style=\"text-align: justify;\">Para que um f\u00e1rmaco atinja o sistema nervoso central, ele precisa atravessar a barreira hematoencef\u00e1lica \u2014 uma barreira natural que protege o c\u00e9rebro e impede a entrada de subst\u00e2ncias potencialmente t\u00f3xicas. A nanotecnologia \u00e9 uma estrat\u00e9gia importante para superar esse desafio.<\/p>\n<p dir=\"ltr\" style=\"text-align: justify;\">Os pesquisadores desenvolveram nanossistemas de libera\u00e7\u00e3o, pequenas part\u00edculas em escala nanom\u00e9trica que:<\/p>\n<p dir=\"ltr\" style=\"text-align: justify;\">\u2022 Protegem os pept\u00eddeos contra degrada\u00e7\u00e3o;<br \/>\n\u2022 Aumentam a estabilidade e a solubilidade;<br \/>\n\u2022 Favorecem a chegada ao c\u00e9rebro;<br \/>\n\u2022 Permitem administra\u00e7\u00e3o intranasal, rota que oferece acesso mais direto ao sistema nervoso central.<\/p>\n<p dir=\"ltr\" style=\"text-align: justify;\">Os estudos indicam que a Neurovespina nanoencapsulada mant\u00e9m a mesma efic\u00e1cia do composto livre. Al\u00e9m disso, quando administrada uma vez ao dia por via intranasal, sustenta a redu\u00e7\u00e3o das crises ao longo do per\u00edodo cr\u00f4nico, sugerindo maior tempo de a\u00e7\u00e3o e melhor conforto terap\u00eautico.<\/p>\n<figure class=\"image\" style=\"text-align: justify;\"><picture data-fileentryid=\"27845310\"><source srcset=\"\/o\/adaptive-media\/image\/27845310\/Thumbnail-300x300\/image+%2819%29.jpeg?t=1763671411870\" media=\"(max-width:200px)\" \/><source srcset=\"\/o\/adaptive-media\/image\/27845310\/Preview-1000x0\/image+%2819%29.jpeg?t=1763671411870\" media=\"(max-width:854px) and (min-width:200px)\" \/><\/picture><picture data-fileentryid=\"27845310\"><source srcset=\"\/o\/adaptive-media\/image\/27845310\/Thumbnail-300x300\/image+%2819%29.jpeg?t=1763671411870\" media=\"(max-width:200px)\" \/><source srcset=\"\/o\/adaptive-media\/image\/27845310\/Preview-1000x0\/image+%2819%29.jpeg?t=1763671411870\" media=\"(max-width:854px) and (min-width:200px)\" \/><\/picture><figcaption><img decoding=\"async\" src=\"https:\/\/www.agenciabrasilia.df.gov.br\/documents\/d\/guest\/image-19-jpeg\" \/>Professora M\u00e1rcia Renata Mortari, coordenadora do projeto | Foto: Marck Castro<\/figcaption><\/figure>\n<p dir=\"ltr\" style=\"text-align: justify;\">A seguran\u00e7a farmacol\u00f3gica vem sendo avaliada por tr\u00eas linhas metodol\u00f3gicas complementares: ensaios\u00a0<em>in vitro<\/em>, com culturas de c\u00e9lulas neuronais; ensaios\u00a0<em>in vivo<\/em>, em modelos animais; e bioinform\u00e1tica, para prever intera\u00e7\u00f5es moleculares, estabilidade e poss\u00edveis efeitos adversos.<\/p>\n<p dir=\"ltr\" style=\"text-align: justify;\">Essa abordagem integrada permite identificar n\u00e3o apenas a efic\u00e1cia, mas tamb\u00e9m potenciais riscos card\u00edacos, neurol\u00f3gicos e metab\u00f3licos \u2014 aspectos essenciais no desenvolvimento de um futuro medicamento.<\/p>\n<p dir=\"ltr\" style=\"text-align: justify;\">A coopera\u00e7\u00e3o multidisciplinar tem sido um diferencial do projeto: neurocientistas, farmacologistas, qu\u00edmicos, especialistas em nanotecnologia e equipes internacionais analisam conjuntamente os dados e refinam os m\u00e9todos, garantindo maior robustez cient\u00edfica.<\/p>\n<p dir=\"ltr\" style=\"text-align: justify;\"><strong>Impactos cient\u00edfico e social<\/strong><\/p>\n<p dir=\"ltr\" style=\"text-align: justify;\">Os resultados da pesquisa t\u00eam potencial para transformar o manejo de doen\u00e7as neurol\u00f3gicas refrat\u00e1rias, tanto na medicina humana quanto na veterin\u00e1ria.<\/p>\n<p dir=\"ltr\" style=\"text-align: justify;\">Novas terapias podem reduzir a frequ\u00eancia e a intensidade das crises, melhorar a autonomia e a qualidade de vida, diminuir hospitaliza\u00e7\u00f5es e reduzir custos associados a tratamentos cr\u00f4nicos pouco eficazes.<\/p>\n<p dir=\"ltr\" style=\"text-align: justify;\">O estudo tamb\u00e9m posiciona o Distrito Federal no cen\u00e1rio da biotecnologia baseada em pept\u00eddeos, \u00e1rea emergente de alta complexidade tecnol\u00f3gica, com potencial para gerar inova\u00e7\u00e3o, propriedade intelectual e forma\u00e7\u00e3o de recursos humanos especializados.<\/p>\n<p dir=\"ltr\" style=\"text-align: justify;\">O apoio da FAPDF, segundo a coordena\u00e7\u00e3o, foi essencial para consolidar o n\u00facleo de pesquisa e viabilizar etapas de alto custo \u2014 desde a purifica\u00e7\u00e3o dos pept\u00eddeos at\u00e9 a execu\u00e7\u00e3o de ensaios pr\u00e9-cl\u00ednicos e cl\u00ednicos, al\u00e9m da aquisi\u00e7\u00e3o de equipamentos especializados.<\/p>\n<p dir=\"ltr\" style=\"text-align: justify;\">\u201cApoiar projetos como a Rede Neurobioprospecta \u00e9 investir em solu\u00e7\u00f5es que nascem no Distrito Federal e t\u00eam potencial para transformar vidas no Brasil e no mundo. \u00c9 ci\u00eancia de excel\u00eancia gerando impacto real na sa\u00fade humana e animal\u201d, afirma Leonardo Reisman, diretor-presidente da FAPDF.<\/p>\n<p dir=\"ltr\" style=\"text-align: justify;\"><strong><em>Com informa\u00e7\u00f5es da Funda\u00e7\u00e3o de Apoio \u00e0 Pesquisa do Distrito Federal (FAPDF)<\/em><\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Estudo da Universidade de Bras\u00edlia, apoiada pela FAPDF, transforma pept\u00eddeos derivados do inseto em candidatos a novos tratamentos para epilepsia, Alzheimer e Parkinson As doen\u00e7as neurodegenerativas \u2014 como a Doen\u00e7a de Alzheimer (DA), a Doen\u00e7a de Parkinson (DP) e a Epilepsia do Lobo Temporal (ELT) \u2014 est\u00e3o entre os maiores desafios da sa\u00fade p\u00fablica contempor\u00e2nea. [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":67250,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[68,21,124],"tags":[],"class_list":{"0":"post-67249","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-brasil","8":"category-brasilia","9":"category-saude"},"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v24.5 (Yoast SEO v27.4) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Pesquisa revela benef\u00edcios do veneno das vespas em novos medicamentos para doen\u00e7as neurodegenerativas - P31<\/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:\/\/www.p31noticias.com.br\/?p=67249\" \/>\n<meta property=\"og:locale\" content=\"pt_BR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Pesquisa revela benef\u00edcios do veneno das vespas em novos medicamentos para doen\u00e7as neurodegenerativas\" \/>\n<meta property=\"og:description\" content=\"Estudo da Universidade de Bras\u00edlia, apoiada pela FAPDF, transforma pept\u00eddeos derivados do inseto em candidatos a novos tratamentos para epilepsia, Alzheimer e Parkinson As doen\u00e7as neurodegenerativas \u2014 como a Doen\u00e7a de Alzheimer (DA), a Doen\u00e7a de Parkinson (DP) e a Epilepsia do Lobo Temporal (ELT) \u2014 est\u00e3o entre os maiores desafios da sa\u00fade p\u00fablica contempor\u00e2nea. 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