{"id":3215,"date":"2026-09-14T14:17:03","date_gmt":"2026-09-14T14:17:03","guid":{"rendered":"https:\/\/docmod.com\/?p=3215"},"modified":"2026-09-14T14:17:03","modified_gmt":"2026-09-14T14:17:03","slug":"un-grupo-de-cientificos-acaba-de-descubrir-que-ciertos-peptidos","status":"publish","type":"post","link":"https:\/\/docmod.com\/?p=3215","title":{"rendered":"Un grupo de cient\u00edficos acaba de descubrir que ciertos p\u00e9ptidos"},"content":{"rendered":"<blockquote><p>Un grupo de cient\u00edficos acaba de descubrir que ciertos p\u00e9ptidos presentes en la mucosidad del ajolote destruyen de forma natural las c\u00e9lulas de c\u00e1ncer de mama sin da\u00f1ar el tejido sano.<\/p><\/blockquote>\n<p>&nbsp;<\/p>\n<p>Asimismo, eliminan las bacterias MRSA resistentes a los f\u00e1rmacos.<\/p>\n<p>&nbsp;<\/p>\n<p>El estudio, publicado en la revista *PLOS ONE*, revela que unos p\u00e9ptidos antimicrobianos (PAM) espec\u00edficos, extra\u00eddos de la mucosidad protectora del ajolote, lograron destruir la bacteria *Staphylococcus aureus* resistente a la meticilina (MRSA).<\/p>\n<p>&nbsp;<\/p>\n<p>Lo m\u00e1s destacable es que tres de estos p\u00e9ptidos indujeron selectivamente la muerte celular programada en c\u00e9lulas de c\u00e1ncer de mama, dejando intacto el tejido mamario sano; esto abre una v\u00eda nueva y sumamente precisa para el desarrollo de terapias dirigidas.<\/p>\n<p>&nbsp;<\/p>\n<p>Mediante un suave masaje a ajolotes criados en cautividad para recolectar su mucosidad, los cient\u00edficos identificaron y sintetizaron 22 p\u00e9ptidos candidatos. Descubrieron que sus estructuras qu\u00edmicas \u00fanicas les permiten perforar las paredes celulares bacterianas y alterar los oncogenes de las c\u00e9lulas cancerosas. A los pat\u00f3genos les resulta mucho m\u00e1s dif\u00edcil resistirse a este mecanismo de defensa natural que a los antibi\u00f3ticos tradicionales, cuyo uso ha sido excesivo. Aunque se requieren m\u00e1s pruebas antes de poder convertir estos p\u00e9ptidos en tratamientos cl\u00ednicos, los hallazgos subrayan la importancia crucial de conservar especies en peligro de extinci\u00f3n como el ajolote, cuya biolog\u00eda \u00fanica podr\u00eda albergar la clave para resolver algunas de las crisis m\u00e9dicas m\u00e1s apremiantes de la humanidad.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Un grupo de cient\u00edficos acaba de descubrir que ciertos p\u00e9ptidos presentes en la mucosidad del ajolote destruyen de forma natural las c\u00e9lulas de c\u00e1ncer de mama sin da\u00f1ar el tejido sano. &nbsp; Asimismo, eliminan las bacterias MRSA resistentes a los f\u00e1rmacos. &nbsp; El estudio, publicado en la revista *PLOS ONE*, revela que unos p\u00e9ptidos antimicrobianos [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":3218,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-3215","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.4 - 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