{"id":5946,"date":"2014-02-26T11:00:17","date_gmt":"2014-02-26T10:00:17","guid":{"rendered":"https:\/\/www.imferblog.com\/?p=5946"},"modified":"2026-05-10T21:52:51","modified_gmt":"2026-05-10T19:52:51","slug":"objetivo-obtener-celulas-madre-embrionarias-pero-no-alterando-el-desarrollo-del-embrion","status":"publish","type":"post","link":"https:\/\/www.imferblog.com\/?p=5946","title":{"rendered":"C\u00e9lulas madre embrionarias sin destruir el embri\u00f3n | IMFER Blog"},"content":{"rendered":"<p>Uno de los debates m\u00e1s intensos en bio\u00e9tica reproductiva de los \u00faltimos veinte a\u00f1os ha girado en torno a las c\u00e9lulas madre embrionarias. Su potencial terap\u00e9utico es enorme, pero hasta hace poco tiempo su obtenci\u00f3n requer\u00eda la destrucci\u00f3n del embri\u00f3n del que proced\u00edan, lo que generaba un rechazo \u00e9tico y legal en muchos pa\u00edses. Un avance publicado en la revista <em>Nature<\/em> por investigadores del Instituto Karolinska de Estocolmo ha cambiado esa ecuaci\u00f3n.<\/p>\n<h2>El problema \u00e9tico de las c\u00e9lulas madre embrionarias<\/h2>\n<p>Las c\u00e9lulas madre embrionarias tienen la capacidad de diferenciarse en pr\u00e1cticamente cualquier tipo celular del organismo, lo que las convierte en una herramienta potencialmente extraordinaria para las terapias regenerativas. Sin embargo, para obtenerlas era necesario destruir el embri\u00f3n en una fase temprana de su desarrollo, lo que en algunos pa\u00edses est\u00e1 prohibido y en muchos genera una profunda controversia.<\/p>\n<p>En Estados Unidos, durante a\u00f1os, la legislaci\u00f3n federal prohibi\u00f3 la financiaci\u00f3n p\u00fablica de investigaci\u00f3n con c\u00e9lulas madre embrionarias humanas. En Europa, las normativas var\u00edan considerablemente de un pa\u00eds a otro. La investigaci\u00f3n en este campo avanzaba, pero con la permanente sombra de la controversia.<\/p>\n<h2>La soluci\u00f3n del Instituto Karolinska: una sola c\u00e9lula<\/h2>\n<p>El equipo de Estocolmo desarroll\u00f3 un m\u00e9todo para obtener c\u00e9lulas madre embrionarias extrayendo una \u00fanica c\u00e9lula de un embri\u00f3n en estadio temprano, sin necesidad de destruirlo. El embri\u00f3n, con el resto de sus c\u00e9lulas intactas, puede continuar su desarrollo y, en teor\u00eda, ser transferido al \u00fatero si as\u00ed se desea.<\/p>\n<p>La t\u00e9cnica empleada es conceptualmente similar al diagn\u00f3stico gen\u00e9tico preimplantacional (DGP), un procedimiento que en IMFER llevamos aplicando desde hace a\u00f1os. En el DGP, se extrae una o dos c\u00e9lulas de un embri\u00f3n de 6-8 c\u00e9lulas para analizar su dotaci\u00f3n cromos\u00f3mica o para identificar enfermedades gen\u00e9ticas espec\u00edficas. El embri\u00f3n, privado de esas c\u00e9lulas, se recupera y puede ser transferido con normalidad.<\/p>\n<p>El avance del equipo de Karolinska fue t\u00e9cnico: lograron que la c\u00e9lula extra\u00edda, cultivada en condiciones especiales que inclu\u00edan laminina y cadherina, dos prote\u00ednas humanas, generara colonias de c\u00e9lulas madre con alta eficiencia. Las claves fueron una matriz de cultivo mejorada y un protocolo optimizado que aument\u00f3 dr\u00e1sticamente la tasa de propagaci\u00f3n clonal desde una sola c\u00e9lula.<\/p>\n<h2>Implicaciones para la medicina regenerativa y el DGP<\/h2>\n<p>Este avance abre varias v\u00edas de aplicaci\u00f3n. La m\u00e1s ambiciosa es la creaci\u00f3n de bancos de c\u00e9lulas madre embrionarias que cubran la mayor diversidad posible de tipos de ant\u00edgenos del sistema inmune, de modo que los pacientes que necesiten terapias celulares puedan encontrar una l\u00ednea compatible con su perfil inmunol\u00f3gico.<\/p>\n<p>En el contexto de la reproducci\u00f3n asistida, el DGP es ya una realidad cl\u00ednica que permite seleccionar embriones sanos antes de la transferencia. En IMFER lo aplicamos en casos de enfermedades gen\u00e9ticas hereditarias, alteraciones cromos\u00f3micas y fallos repetidos de implantaci\u00f3n. Puedes conocer m\u00e1s sobre este procedimiento y su relaci\u00f3n con la <a href=\"\/guia-completa-fecundacion-in-vitro\/\">fecundaci\u00f3n in vitro en nuestra gu\u00eda completa<\/a>.<\/p>\n<p class=\"imfer-article-cta-inline\">\u00bfTienes dudas sobre este tema? <a href=\"https:\/\/www.imfer.com\" target=\"_blank\" rel=\"noopener\">Consulta con nuestros especialistas en IMFER<\/a>.<\/p>\n<p><strong>Tambi\u00e9n puede interesarte:<\/strong> <a href=\"https:\/\/www.imferblog.com\/la-consanguinidad-duplicaba-el-riesgo-de-anomalias-congenitas\/\">Consanguinidad y anomal\u00edas cong\u00e9nitas: riesgos y opciones\u2026<\/a> y <a href=\"https:\/\/www.imferblog.com\/la-consanguinidad-duplicaba-el-riesgo-de-anomalias-congenitas\/\">Consanguinidad y anomal\u00edas cong\u00e9nitas: riesgos y opciones\u2026<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Uno de los debates m\u00e1s intensos en bio\u00e9tica reproductiva de los \u00faltimos veinte a\u00f1os ha girado en torno a las c\u00e9lulas madre embrionarias. Su potencial terap\u00e9utico es enorme, pero hasta hace poco tiempo su obtenci\u00f3n requer\u00eda la destrucci\u00f3n del embri\u00f3n del que proced\u00edan, lo que generaba un rechazo \u00e9tico y &#8230;<\/p>\n","protected":false},"author":1,"featured_media":3681,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[1289,1295,1294,7,1286],"class_list":["post-5946","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-actualidad","tag-actualidad","tag-embriologia","tag-embrion","tag-fertilidad","tag-reproduccion-asistida","h-entry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.5 (Yoast SEO v27.6) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>C\u00e9lulas madre embrionarias sin destruir el embri\u00f3n | IMFER Blog<\/title>\n<meta name=\"description\" content=\"Investigadores del Instituto Karolinska consiguen obtener c\u00e9lulas madre de una sola c\u00e9lula embrionaria sin destruir el embri\u00f3n. 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