{"id":7033,"date":"2016-03-12T21:11:52","date_gmt":"2016-03-12T20:11:52","guid":{"rendered":"https:\/\/www.imferblog.com\/?p=7033"},"modified":"2026-05-10T21:50:16","modified_gmt":"2026-05-10T19:50:16","slug":"es-posible-crear-espermas-fuera-del-cuerpo-humano","status":"publish","type":"post","link":"https:\/\/www.imferblog.com\/?p=7033","title":{"rendered":"Investigaci\u00f3n en infertilidad masculina: espermatozoides in vitro | IMFER Blog"},"content":{"rendered":"<p>Uno de los grandes retos de la medicina reproductiva es la azoospermia no obstructiva: la situaci\u00f3n en que los test\u00edculos no producen espermatozoides maduros y no existe forma de recuperarlos mediante biopsia. Para estos varones, hasta ahora la \u00fanica alternativa reproductiva era la donaci\u00f3n de semen. Pero la investigaci\u00f3n cient\u00edfica avanza en otra direcci\u00f3n.<\/p>\n<h2>La espermatog\u00e9nesis en laboratorio<\/h2>\n<p>En 2015, cient\u00edficos de la empresa de biotecnolog\u00eda Kallistem, vinculada al Instituto de Gen\u00f3mica Funcional de Lyon (Francia), anunciaron haber logrado completar in vitro todo el proceso de maduraci\u00f3n de c\u00e9lulas germinales masculinas hasta obtener espermatozoides morfol\u00f3gicamente normales. Es decir, conseguir espermatozoides maduros fuera del cuerpo humano a partir de c\u00e9lulas precursoras obtenidas mediante biopsia testicular.<\/p>\n<p>Los investigadores apuntaron dos grupos de pacientes que se beneficiar\u00edan especialmente de esta tecnolog\u00eda si llegara a aplicarse cl\u00ednicamente: varones con infertilidad severa cuya \u00fanica fuente de material eran las c\u00e9lulas testiculares m\u00e1s inmaduras, y ni\u00f1os con c\u00e1ncer que antes de recibir quimioterapia solo pod\u00edan conservar tejido testicular, no espermatozoides maduros.<\/p>\n<h2>El contexto: la calidad seminal en declive<\/h2>\n<p>La investigaci\u00f3n sobre espermatog\u00e9nesis in vitro cobra especial relevancia en un contexto preocupante. M\u00faltiples estudios publicados en las \u00faltimas dos d\u00e9cadas documentan un descenso sostenido en la concentraci\u00f3n de espermatozoides en el semen masculino en pa\u00edses occidentales. Algunos metaan\u00e1lisis estiman que la concentraci\u00f3n esperm\u00e1tica media ha disminuido en torno a un 50% en los \u00faltimos 40 a\u00f1os, aunque el debate sobre las causas y la magnitud exacta del fen\u00f3meno contin\u00faa.<\/p>\n<h2>Aplicaci\u00f3n cl\u00ednica: todav\u00eda en el horizonte<\/h2>\n<p>La espermatog\u00e9nesis completa in vitro sigue siendo, a fecha de hoy, una tecnolog\u00eda experimental. Los estudios en animales son prometedores, pero el salto a la aplicaci\u00f3n en humanos requiere demostrar seguridad a largo plazo para los ni\u00f1os que pudieran nacer. No existe todav\u00eda ning\u00fan beb\u00e9 nacido mediante esta tecnolog\u00eda.<\/p>\n<p>Si te encuentras en una situaci\u00f3n de factor masculino severo, nuestros especialistas pueden orientarte sobre las opciones disponibles. Consulta tambi\u00e9n nuestra <a href=\"\/guia-infertilidad-pareja\/\">gu\u00eda sobre infertilidad en pareja<\/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\/se-ofrece-nino-rubio-con-ojos-azules\/\">\u00bfPuedo elegir las caracter\u00edsticas del donante de \u00f3vulos o\u2026<\/a> y <a href=\"https:\/\/www.imferblog.com\/laparoscopia-por-endometriosis-brinda-esperanza-en-fertilidad\/\">Laparoscopia para endometriosis: beneficios para la fertilidad<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Uno de los grandes retos de la medicina reproductiva es la azoospermia no obstructiva: la situaci\u00f3n en que los test\u00edculos no producen espermatozoides maduros y no existe forma de recuperarlos mediante biopsia. Para estos varones, hasta ahora la \u00fanica alternativa reproductiva era la donaci\u00f3n de semen. Pero la investigaci\u00f3n cient\u00edfica &#8230;<\/p>\n","protected":false},"author":1,"featured_media":7034,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1275],"tags":[65,1293,7,396,45,1006],"class_list":["post-7033","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-fertilidad","tag-espermatozoides","tag-factor-masculino","tag-fertilidad","tag-fertilidad-masculina","tag-infertilidad","tag-salud-reproductiva","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>Investigaci\u00f3n en infertilidad masculina | IMFER Blog<\/title>\n<meta name=\"description\" content=\"Cient\u00edficos de Lyon lograron espermatozoides completos in vitro. 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