{"id":2649490,"date":"2025-11-02T17:10:49","date_gmt":"2025-11-02T17:10:49","guid":{"rendered":"https:\/\/www.pressenza.com\/?p=2649490"},"modified":"2025-11-02T17:10:49","modified_gmt":"2025-11-02T17:10:49","slug":"hallan-antibiotico-capaz-de-eliminar-superbacterias","status":"publish","type":"post","link":"https:\/\/www.pressenza.com\/es\/2025\/11\/hallan-antibiotico-capaz-de-eliminar-superbacterias\/","title":{"rendered":"Hallan antibi\u00f3tico capaz de eliminar superbacterias"},"content":{"rendered":"<p style=\"padding-left: 40px;\"><em>Un equipo de cient\u00edficos hall\u00f3 un potente antibi\u00f3tico que podr\u00eda ayudar a combatir las infecciones resistentes a los medicamentos, divulg\u00f3 la revista cient\u00edfica Nature.<\/em><\/p>\n<p>\u00abEl descubrimiento fue una sorpresa\u00bb, afirm\u00f3 Gregory Challis, bi\u00f3logo qu\u00edmico de la Universidad de Warwick en Coventry, Reino Unido, y coautor del estudio.<\/p>\n<p>Dicho resultado se origin\u00f3 mientras los investigadores analizaban el proceso mediante el cual una bacteria del suelo produce de forma natural un f\u00e1rmaco conocido.<\/p>\n<p>La resistencia antimicrobiana es una amenaza creciente que, seg\u00fan las proyecciones, causar\u00e1 39 millones de muertes en todo el mundo durante los pr\u00f3ximos 25 a\u00f1os.<\/p>\n<p>Los investigadores afirman que el reci\u00e9n creado compuesto antimicrobiano podr\u00eda dar lugar a m\u00e1s f\u00e1rmacos para combatir la mencionada resistencia.<\/p>\n<p>El trabajo subraya el potencial de los estudios para identificar nuevas estructuras qu\u00edmicas bioactivas a partir de rutas metab\u00f3licas ya conocidas, afirma Gerard Wright, bioqu\u00edmico de la Universidad McMaster en Hamilton, Canad\u00e1.<\/p>\n<p>Este descubrimiento accidental tuvo su g\u00e9nesis despu\u00e9s que Challis y sus colegas comenzaron a estudiar en 2006 la ruta molecular mediante la cual la bacteria Streptomyces coelicolor produce el antibi\u00f3tico metilenomicina A.<\/p>\n<p>Para ello, eliminaron uno a uno los genes que codifican las enzimas implicadas en cada paso.<\/p>\n<p>La investigaci\u00f3n se bas\u00f3 en los esfuerzos previos realizados en 2002 para secuenciar el genoma de la bacteria.<\/p>\n<p>Para 2010, el equipo descifr\u00f3 el mecanismo que la bacteria utilizaba para producir metilenomicina A e identificado varias mol\u00e9culas intermedias que generaba durante el proceso.<\/p>\n<p>\u201cEst\u00e1bamos realizando una investigaci\u00f3n b\u00e1sica y exploratoria y descubrimos estos intermediarios y los dejamos de lado durante un tiempo, pues no sab\u00edamos muy bien qu\u00e9 hacer con ellos\u201d, explic\u00f3 Challis.<\/p>\n<p>Varios a\u00f1os despu\u00e9s, en 2017, un estudiante de doctorado del laboratorio de Challis analiz\u00f3 la actividad antimicrobiana de esas mol\u00e9culas intermedias.<\/p>\n<p>Las pruebas revelaron que dos mol\u00e9culas, incluida la lactona de premetilenomicina C, fueron mucho m\u00e1s efectivas que la metilenomicina A para atacar siete cepas de bacterias Gram-positivas, incluido el Staphylococcus aureus, que infecta la piel, la sangre y los \u00f3rganos internos, y el Enterococcus faecium, que puede causar infecciones mortales del torrente sangu\u00edneo y urinarias.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Un equipo de cient\u00edficos hall\u00f3 un potente antibi\u00f3tico que podr\u00eda ayudar a combatir las infecciones resistentes a los medicamentos, divulg\u00f3 la revista cient\u00edfica Nature. \u00abEl descubrimiento fue una sorpresa\u00bb, afirm\u00f3 Gregory Challis, bi\u00f3logo qu\u00edmico de la Universidad de Warwick en&hellip;<\/p>\n","protected":false},"author":90,"featured_media":2649492,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[497,66],"tags":[145526],"class_list":["post-2649490","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ciencia-tecnologia","category-europa-es","tag-antibiotico"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.1.1 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Hallan antibi\u00f3tico capaz de eliminar superbacterias<\/title>\n<meta name=\"description\" content=\"Un equipo de cient\u00edficos hall\u00f3 un potente antibi\u00f3tico que podr\u00eda ayudar a combatir las infecciones resistentes a los medicamentos, divulg\u00f3 la revista\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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