{"id":551,"date":"2012-10-09T10:46:15","date_gmt":"2012-10-09T13:46:15","guid":{"rendered":"http:\/\/medicina.udd.cl\/centro-genetica-humana\/?p=551"},"modified":"2012-10-09T10:46:26","modified_gmt":"2012-10-09T13:46:26","slug":"nobel-de-medicina-2012-reconoce-investigacion-con-celulas-madre","status":"publish","type":"post","link":"https:\/\/medicina.udd.cl\/centro-genetica-genomica\/noticias\/2012\/10\/09\/nobel-de-medicina-2012-reconoce-investigacion-con-celulas-madre\/","title":{"rendered":"Nobel de Medicina 2012 reconoce investigaci\u00f3n con c\u00e9lulas madre"},"content":{"rendered":"<p>El cient\u00edfico brit\u00e1nico John Gurdon y el japon\u00e9s Shinya Yamanaka recibieron el Premio Nobel de Medicina 2012, por sus descubrimientos sobre la reprogramaci\u00f3n de las c\u00e9lulas. Sus hallazgos, dijo el presidente del Comit\u00e9 Nobel, \u00abhan cambiado completamente nuestro entendimiento sobre el desarrollo y especializaci\u00f3n de las c\u00e9lulas y organismos\u00bb.<\/p>\n<p>Los estudios de los profesores Gurdon, de la Universidad de Cambridge, Inglaterra, y Yamanaka, de las universidades de Kioto, Jap\u00f3n, y California, en San Francisco, \u00abhan revolucionado la investigaci\u00f3n sobre c\u00f3mo las c\u00e9lulas maduras pueden reprogramarse para convertirse en c\u00e9lulas madre pluripotenciales, capaces de volverse cualquier tipo de tejido en el organismo\u00bb.<\/p>\n<p>Seg\u00fan publica hoy el sitio BBC Mundo, hasta antes de estas investigaciones se pensaba que una vez creadas, las c\u00e9lulas se multiplicaban para convertirse en c\u00e9lulas especializadas y formar cualquier tejido en el organismo. Y se cre\u00eda que este proceso era irreversible: una vez que la c\u00e9lula se hab\u00eda especializado no se pod\u00eda cambiar su estado.<\/p>\n<p><a href=\"http:\/\/medicina.udd.cl\/centro-genetica-humana\/files\/2012\/10\/celulasmadres.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignleft size-full wp-image-552\" title=\"celulasmadres\" src=\"http:\/\/medicina.udd.cl\/centro-genetica-humana\/files\/2012\/10\/celulasmadres.jpg\" alt=\"\" width=\"304\" height=\"171\" srcset=\"https:\/\/medicina.udd.cl\/centro-genetica-genomica\/files\/2012\/10\/celulasmadres.jpg 304w, https:\/\/medicina.udd.cl\/centro-genetica-genomica\/files\/2012\/10\/celulasmadres-300x169.jpg 300w\" sizes=\"auto, (max-width: 304px) 100vw, 304px\" \/><\/a><\/p>\n<p>John Gurdon descubri\u00f3 en 1962 que la especializaci\u00f3n de las c\u00e9lulas podr\u00eda revertirse. En experimentos con ranas remplaz\u00f3 el n\u00facleo de una c\u00e9lula inmadura de un \u00f3vulo con una c\u00e9lula intestinal madura y demostr\u00f3 que el \u00f3vulo modificado pod\u00eda desarrollarse en un embri\u00f3n normal.<\/p>\n<p>El hallazgo mostr\u00f3 que el ADN de una c\u00e9lula madura pod\u00eda mantener toda la informaci\u00f3n necesaria para convertirse en cualquier tipo de c\u00e9lula en el organismo.<\/p>\n<p>El profesor Gurdon sent\u00f3 las bases para que 40 a\u00f1os despu\u00e9s, en 2006, Shinya Yamanaka descubriera c\u00f3mo las c\u00e9lulas maduras en ratones pod\u00edan reprogramarse para convertirse en c\u00e9lulas madre inmaduras.<\/p>\n<p>Yamanaka encontr\u00f3 que al introducir s\u00f3lo cuatro genes pod\u00eda reprogramar las c\u00e9lulas maduras ya diferencias -utiliz\u00f3 c\u00e9lulas de la piel- y convertirlas en c\u00e9lulas pluripotenciales -similares a las c\u00e9lulas madre embrionarias- capaces de volverse cualquier tipo de tejido.<\/p>\n<p>Tal como expres\u00f3 el Comit\u00e9 Nobel, los descubrimientos de Gurdon y Yamanaka han acercado a la creaci\u00f3n de tratamientos para enfermedades gen\u00e9ticas.<\/p>\n<p>(Fuente: web BBC Mundo)<\/p>\n","protected":false},"excerpt":{"rendered":"<p>El galard\u00f3n fue otorgado a un brit\u00e1nico y un japon\u00e9s por sus descubrimientos sobre la reprogramaci\u00f3n de c\u00e9lulas.<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[],"class_list":["post-551","post","type-post","status-publish","format-standard","hentry","category-noticias"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.9 - 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