{"id":109841,"date":"2026-05-07T17:08:19","date_gmt":"2026-05-07T21:08:19","guid":{"rendered":"https:\/\/romanticany.com\/?p=109841"},"modified":"2026-05-07T17:08:23","modified_gmt":"2026-05-07T21:08:23","slug":"brasil-da-un-paso-gigante-en-xenotrasplantes-primer-cerdo-clonado-para-trasplantes-humanos","status":"publish","type":"post","link":"https:\/\/romanticany.com\/?p=109841","title":{"rendered":"\u00abBrasil da un paso gigante en xenotrasplantes: Primer cerdo clonado para trasplantes humanos\u00bb"},"content":{"rendered":"\n<p>Brasil ha alcanzado un <strong>logro cient\u00edfico hist\u00f3rico<\/strong> al conseguir el <strong>nacimiento del primer cerdo clonado de Am\u00e9rica Latina<\/strong> con fines de <strong>xenotrasplante<\/strong>, un avance que podr\u00eda <strong>transformar el futuro de los trasplantes de \u00f3rganos<\/strong> en el pa\u00eds y en el mundo. El proyecto, desarrollado por investigadores de la <strong>Universidad de S\u00e3o Paulo (USP)<\/strong>, busca <strong>crear \u00f3rganos porcinos compatibles con humanos<\/strong>, reduciendo as\u00ed la <strong>escasez de donantes<\/strong> y la <strong>lista de espera para trasplantes<\/strong>.<\/p>\n\n\n\n<p>El cerdo clonado naci\u00f3 a <strong>finales de marzo de 2026<\/strong> en el <strong>Instituto de Zootecnia de Piracicaba (S\u00e3o Paulo)<\/strong>, tras <strong>seis a\u00f1os de investigaci\u00f3n<\/strong> y varios intentos fallidos. Este \u00e9xito no solo valida la <strong>tecnolog\u00eda de clonaci\u00f3n en cerdos<\/strong> \u2014m\u00e1s compleja que en otros animales\u2014, sino que tambi\u00e9n <strong>posiciona a Brasil como un actor clave<\/strong> en la carrera global por los xenotrasplantes.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p><strong>El equipo cient\u00edfico y la tecnolog\u00eda CRISPR<\/strong><br>El proyecto est\u00e1 liderado por tres <strong>referentes de la ciencia brasile\u00f1a<\/strong>:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Silvano Raia<\/strong> (pionero en trasplantes en Brasil).<\/li>\n\n\n\n<li><strong>Mayana Zatz<\/strong> (experta en gen\u00e9tica humana).<\/li>\n\n\n\n<li><strong>Jorge Kalil<\/strong> (inmun\u00f3logo de la USP).<\/li>\n<\/ul>\n\n\n\n<p>La iniciativa, que comenz\u00f3 en <strong>2019<\/strong> con el apoyo de la <strong>farmac\u00e9utica EMS<\/strong>, se expandi\u00f3 con la creaci\u00f3n de <strong>XenoBR<\/strong>, un centro de investigaci\u00f3n financiado por la <strong>FAPESP<\/strong>. Seg\u00fan <strong>Ernesto Goulart<\/strong>, profesor del <strong>Instituto de Biociencias de la USP<\/strong>, clonar cerdos es un <strong>desaf\u00edo biol\u00f3gico mayor<\/strong> que clonar bovinos o caballos.<\/p>\n\n\n\n<p>Para superar el <strong>rechazo inmunol\u00f3gico<\/strong> (el principal obst\u00e1culo en xenotrasplantes), los cient\u00edficos usaron <strong>CRISPR\/Cas9<\/strong> para:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Inactivar tres genes porcinos<\/strong> que provocan el rechazo hiperagudo.<\/li>\n\n\n\n<li><strong>Insertar siete genes humanos<\/strong> para mejorar la compatibilidad con el cuerpo humano.<\/li>\n<\/ul>\n\n\n\n<p>Los embriones modificados se implantaron en <strong>cerdas h\u00edbridas (Landrace y Large White)<\/strong>, y tras <strong>cuatro meses de gestaci\u00f3n<\/strong>, naci\u00f3 el primer cerdo clonado, con <strong>1.7 kg de peso y en perfecto estado<\/strong>. <em>\u00abQue el animal est\u00e9 sano demuestra que la t\u00e9cnica es viable\u00bb<\/em>, afirm\u00f3 Goulart.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p><strong>Pr\u00f3ximos pasos: Plantel reproductor y bioseguridad<\/strong><br>El siguiente objetivo es crear un <strong>plantel de cerdos gen\u00e9ticamente modificados<\/strong> que puedan <strong>transmitir sus genes a nuevas generaciones<\/strong> sin necesidad de clonaci\u00f3n. Los animales se criar\u00e1n en dos instalaciones con <strong>nivel de bioseguridad NB2<\/strong>:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Campus de la USP en S\u00e3o Paulo<\/strong> (desde 2024).<\/li>\n\n\n\n<li><strong>Instituto de Investigaciones Tecnol\u00f3gicas<\/strong> (nueva).<\/li>\n<\/ul>\n\n\n\n<p>Estas instalaciones garantizan que los cerdos est\u00e9n <strong>libres de pat\u00f3genos<\/strong> que podr\u00edan afectar a los receptores humanos. <em>\u00abLos \u00f3rganos ser\u00e1n productos m\u00e9dicos. No podemos asumir riesgos biol\u00f3gicos\u00bb<\/em>, explic\u00f3 Goulart.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p><strong>\u00d3rganos prioritarios y competencia global<\/strong><br>El proyecto se enfocar\u00e1 en cuatro \u00f3rganos que representan <strong>el 94% de la demanda de trasplantes<\/strong> en el <strong>SUS de Brasil<\/strong>:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Ri\u00f1ones<\/strong>.<\/li>\n\n\n\n<li><strong>C\u00f3rneas<\/strong>.<\/li>\n\n\n\n<li><strong>Coraz\u00f3n<\/strong>.<\/li>\n\n\n\n<li><strong>Piel<\/strong>.<\/li>\n<\/ul>\n\n\n\n<p>Aunque los xenotrasplantes a\u00fan no tienen <strong>aprobaci\u00f3n masiva<\/strong>, <strong>EE.UU. y China<\/strong> ya avanzan en <strong>estudios cl\u00ednicos<\/strong>. En los \u00faltimos a\u00f1os, se han realizado <strong>trasplantes compasivos<\/strong> con \u00f3rganos porcinos, como <strong>dos trasplantes card\u00edacos<\/strong> (pacientes sobrevivieron ~60 d\u00edas) y un <strong>trasplante renal<\/strong> que super\u00f3 los <strong>270 d\u00edas<\/strong>.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p><strong>Brasil vs. EE.UU. y China: La carrera por el xenotrasplante<\/strong><br>El equipo brasile\u00f1o advierte que, si <strong>EE.UU. o China dominan primero esta tecnolog\u00eda<\/strong>, Brasil podr\u00eda <strong>quedar en desventaja y depender de importaciones costosas<\/strong>. <em>\u00abSi no desarrollamos esta capacidad, nuestro sistema de trasplantes quedar\u00e1 vulnerable\u00bb<\/em>, dijo Goulart.<\/p>\n\n\n\n<p>El objetivo es convertir a <strong>S\u00e3o Paulo en el centro de xenotrasplantes de Am\u00e9rica Latina<\/strong> y <strong>exportar la tecnolog\u00eda<\/strong> a pa\u00edses de la regi\u00f3n.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p><strong>#Xenotrasplantes #CerdoClonado #Brasil #CRISPR #MedicinaFutura #Trasplantes #Ciencia #Innovaci\u00f3n<\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Brasil ha alcanzado un logro cient\u00edfico hist\u00f3rico al conseguir el nacimiento del primer cerdo clonado de Am\u00e9rica Latina con fines de xenotrasplante, un avance que podr\u00eda transformar el futuro de los trasplantes de \u00f3rganos en el pa\u00eds y en el mundo. El proyecto, desarrollado por investigadores de la Universidad de S\u00e3o Paulo (USP), busca crear [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":109842,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[],"class_list":["post-109841","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ciencia"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>&quot;Brasil da un paso gigante en xenotrasplantes: Primer cerdo clonado para trasplantes humanos&quot; - Romantica NY<\/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:\/\/romanticany.com\/?p=109841\" \/>\n<meta property=\"og:locale\" content=\"es_ES\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"&quot;Brasil da un paso gigante en xenotrasplantes: Primer cerdo clonado para trasplantes humanos&quot; - Romantica NY\" \/>\n<meta property=\"og:description\" content=\"Brasil ha alcanzado un logro cient\u00edfico hist\u00f3rico al conseguir el nacimiento del primer cerdo clonado de Am\u00e9rica Latina con fines de xenotrasplante, un avance que podr\u00eda transformar el futuro de los trasplantes de \u00f3rganos en el pa\u00eds y en el mundo. 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