{"id":3376,"date":"2023-07-29T14:42:58","date_gmt":"2023-07-29T14:42:58","guid":{"rendered":"https:\/\/dailyai.com\/?p=3376"},"modified":"2023-07-31T09:16:54","modified_gmt":"2023-07-31T09:16:54","slug":"researchers-use-machine-learning-to-resurrect-ancient-molecules","status":"publish","type":"post","link":"https:\/\/dailyai.com\/es\/2023\/07\/researchers-use-machine-learning-to-resurrect-ancient-molecules\/","title":{"rendered":"Los investigadores utilizan el aprendizaje autom\u00e1tico para \"resucitar\" mol\u00e9culas antiguas"},"content":{"rendered":"<p><b>Un equipo de bioingenieros ha utilizado con \u00e9xito la IA para resucitar mol\u00e9culas de nuestro antiguo pasado.\u00a0<\/b><\/p>\n<p><span style=\"font-weight: 400;\">Este interesante estudio utiliz\u00f3 el aprendizaje autom\u00e1tico (ML) para analizar datos sobre prote\u00ednas de humanos modernos (<\/span><i><span style=\"font-weight: 400;\">Homo sapiens<\/span><\/i><span style=\"font-weight: 400;\">), as\u00ed como de nuestros parientes extintos, los neandertales (<\/span><i><span style=\"font-weight: 400;\">Homo neanderthalensis<\/span><\/i><span style=\"font-weight: 400;\">) y los denisovanos, una especie o subespecie humana extinguida de Asia.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">En <\/span><a href=\"https:\/\/www.sciencedirect.com\/science\/article\/abs\/pii\/S1931312823002962?via%3Dihub\"><span style=\"font-weight: 400;\">estudiar<\/span><\/a><span style=\"font-weight: 400;\"> han descubierto mol\u00e9culas con potencial para combatir bacterias pat\u00f3genas. Estas t\u00e9cnicas, denominadas \"de-extinci\u00f3n\", podr\u00edan servir de base para localizar nuevos antibi\u00f3ticos.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\"Nos motiva la idea de recuperar mol\u00e9culas del pasado para resolver problemas actuales\", C\u00e9sar de la Fuente, coautor del estudio y bioingeniero de la Universidad de Pensilvania en Filadelfia, <\/span><a href=\"https:\/\/www.nature.com\/articles\/d41586-023-02403-0\"><span style=\"font-weight: 400;\">dijo a Nature<\/span><\/a><span style=\"font-weight: 400;\">.\u00a0<\/span><\/p>\n<p>Si esto le hace pensar en cierta franquicia cinematogr\u00e1fica basada en dinosaurios <span style=\"font-weight: 400;\">-<\/span> Eso es precisamente lo que inspir\u00f3 al equipo de investigaci\u00f3n.<\/p>\n<p>De la Fuente dijo: \"En realidad empezamos a pensar en\u00a0<i>Parque Jur\u00e1sico<\/i>dice. En lugar de resucitar dinosaurios, como hicieron los cient\u00edficos en la pel\u00edcula de 1993, al equipo se le ocurri\u00f3 una idea m\u00e1s factible: \"\u00bfPor qu\u00e9 no resucitar mol\u00e9culas?\".<\/p>\n<p><span style=\"font-weight: 400;\">Existe una inmensa presi\u00f3n sobre los investigadores para localizar nuevos antibi\u00f3ticos, ya que en los \u00faltimos 30 a\u00f1os se han descubierto pocos f\u00e1rmacos eficaces.<\/span><\/p>\n<p><span style=\"font-weight: 400;\"> Mientras tanto, la prevalencia de bacterias resistentes a los antibi\u00f3ticos va en aumento, por lo que los tratamientos novedosos son bienvenidos. <\/span><span style=\"font-weight: 400;\">La IA proporciona <a href=\"https:\/\/dailyai.com\/es\/2023\/05\/ai-helps-researchers-discover-a-new-antibiotic-for-treating-drug-resistant-bacteria\/\">numerosas v\u00edas<\/a> para explorar esos tratamientos novedosos, con una serie de estudios que aprovechan la tecnolog\u00eda para descubrir mol\u00e9culas ocultas y desconocidas cl\u00ednicamente relevantes.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Muchos organismos generan subunidades proteicas cortas conocidas como p\u00e9ptidos con propiedades antimicrobianas. Varios p\u00e9ptidos antimicrobianos, procedentes sobre todo de bacterias, se utilizan para tratar infecciones.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Las prote\u00ednas de especies extinguidas -incluida la humana- podr\u00edan constituir un recurso valioso, aunque poco explorado, para desarrollar nuevos antibi\u00f3ticos.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Los investigadores entrenaron un algoritmo de ML para identificar los lugares de las prote\u00ednas humanas donde se cortan en p\u00e9ptidos. Aplicaron este algoritmo a secuencias de prote\u00ednas disponibles p\u00fablicamente de <\/span><i><span style=\"font-weight: 400;\">H. sapiens, H. neanderthalensis<\/span><\/i><span style=\"font-weight: 400;\">y Denisovanos, identificando nuevos p\u00e9ptidos basados en las caracter\u00edsticas de p\u00e9ptidos antimicrobianos conocidos.\u00a0<\/span><\/p>\n<figure id=\"attachment_3377\" aria-describedby=\"caption-attachment-3377\" style=\"width: 729px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-3377\" src=\"https:\/\/dailyai.com\/wp-content\/uploads\/2023\/07\/1-s2.0-S1931312823002962-fx1_lrg.jpg\" alt=\"Desextinci\u00f3n de la IA\" width=\"729\" height=\"729\" srcset=\"https:\/\/dailyai.com\/wp-content\/uploads\/2023\/07\/1-s2.0-S1931312823002962-fx1_lrg.jpg 996w, https:\/\/dailyai.com\/wp-content\/uploads\/2023\/07\/1-s2.0-S1931312823002962-fx1_lrg-300x300.jpg 300w, https:\/\/dailyai.com\/wp-content\/uploads\/2023\/07\/1-s2.0-S1931312823002962-fx1_lrg-150x150.jpg 150w, https:\/\/dailyai.com\/wp-content\/uploads\/2023\/07\/1-s2.0-S1931312823002962-fx1_lrg-768x768.jpg 768w, https:\/\/dailyai.com\/wp-content\/uploads\/2023\/07\/1-s2.0-S1931312823002962-fx1_lrg-180x180.jpg 180w, https:\/\/dailyai.com\/wp-content\/uploads\/2023\/07\/1-s2.0-S1931312823002962-fx1_lrg-90x90.jpg 90w, https:\/\/dailyai.com\/wp-content\/uploads\/2023\/07\/1-s2.0-S1931312823002962-fx1_lrg-370x370.jpg 370w, https:\/\/dailyai.com\/wp-content\/uploads\/2023\/07\/1-s2.0-S1931312823002962-fx1_lrg-800x800.jpg 800w, https:\/\/dailyai.com\/wp-content\/uploads\/2023\/07\/1-s2.0-S1931312823002962-fx1_lrg-20x20.jpg 20w, https:\/\/dailyai.com\/wp-content\/uploads\/2023\/07\/1-s2.0-S1931312823002962-fx1_lrg-740x740.jpg 740w, https:\/\/dailyai.com\/wp-content\/uploads\/2023\/07\/1-s2.0-S1931312823002962-fx1_lrg-24x24.jpg 24w, https:\/\/dailyai.com\/wp-content\/uploads\/2023\/07\/1-s2.0-S1931312823002962-fx1_lrg-48x48.jpg 48w, https:\/\/dailyai.com\/wp-content\/uploads\/2023\/07\/1-s2.0-S1931312823002962-fx1_lrg-96x96.jpg 96w\" sizes=\"auto, (max-width: 729px) 100vw, 729px\" \/><figcaption id=\"caption-attachment-3377\" class=\"wp-caption-text\">La \"desextinci\u00f3n\" molecular con IA. Fuente: <a href=\"https:\/\/www.sciencedirect.com\/science\/article\/abs\/pii\/S1931312823002962?via%3Dihub\">Desextinci\u00f3n molecular de antiguos p\u00e9ptidos antimicrobianos mediante aprendizaje autom\u00e1tico<\/a>.<\/figcaption><\/figure>\n<p><span style=\"font-weight: 400;\">S\u00f3lo se tarda unas semanas en identificar y probar posibles candidatos a f\u00e1rmacos mediante la IA, frente al proceso tradicional que tarda entre 3 y 6 6 en descubrir un nuevo antibi\u00f3tico.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">El equipo prob\u00f3 diversos p\u00e9ptidos en un laboratorio para explorar su capacidad de eliminar bacterias. Seleccionaron 6 potentes p\u00e9ptidos - 4 de <\/span><i><span style=\"font-weight: 400;\">H. sapiens<\/span><\/i><span style=\"font-weight: 400;\">1 de <\/span><i><span style=\"font-weight: 400;\">H. neanderthalensis<\/span><\/i><span style=\"font-weight: 400;\">y 1 de denisovanos. Los p\u00e9ptidos se probaron en ratones infectados con <\/span><i><span style=\"font-weight: 400;\">Acinetobacter baumannii<\/span><\/i><span style=\"font-weight: 400;\">.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Aunque ninguno de los p\u00e9ptidos mat\u00f3 por completo a las bacterias, todos consiguieron inhibir el crecimiento de <\/span><i><span style=\"font-weight: 400;\">A. baumannii <\/span><\/i><span style=\"font-weight: 400;\">en el tejido muscular del muslo. 5 mol\u00e9culas mataron bacterias en abscesos cut\u00e1neos, aunque se necesitaron dosis elevadas.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\"Aunque el algoritmo que utilizamos no produjo mol\u00e9culas asombrosas, creo que el concepto y el marco representan una v\u00eda completamente nueva para pensar en el descubrimiento de f\u00e1rmacos\", afirma de la Fuente.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Euan Ashley, experto en gen\u00f3mica y salud de precisi\u00f3n de la Universidad de Stanford, coment\u00f3: \"De la Fuente y sus colegas me convencieron de que bucear en el genoma humano arcaico era un enfoque interesante y potencialmente \u00fatil.\"<\/span><\/p>\n<h2><span style=\"font-weight: 400;\">C\u00f3mo ha funcionado el estudio: desglose<\/span><\/h2>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Los investigadores se propusieron resucitar (o \"eliminar\") mol\u00e9culas bioactivas que ya no producen los organismos vivos. Estas mol\u00e9culas podr\u00edan utilizarse para descubrir f\u00e1rmacos.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Utilizaron un modelo de aprendizaje autom\u00e1tico conocido como panCleave. Se trata de un modelo de \"bosque aleatorio\", un tipo de algoritmo de inteligencia artificial que predice resultados bas\u00e1ndose en muchos datos. El modelo panCleave predijo d\u00f3nde se dividir\u00edan las prote\u00ednas en partes m\u00e1s peque\u00f1as conocidas como p\u00e9ptidos. Estos p\u00e9ptidos tienen a veces propiedades antimicrobianas.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">El resultado: Los investigadores encontraron varios p\u00e9ptidos (tanto de humanos modernos como de parientes humanos extintos) que mostraron potencial como agentes antimicrobianos cuando se probaron en el laboratorio.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Las pruebas incluyeron la resistencia a la rotura por otras prote\u00ednas y la capacidad de permeabilizar las membranas celulares. Algunos de los p\u00e9ptidos combatieron eficazmente una infecci\u00f3n bacteriana com\u00fan en abscesos cut\u00e1neos de ratones.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Los m\u00e9todos de aprendizaje autom\u00e1tico pueden identificar p\u00e9ptidos prometedores para el desarrollo de nuevos antibi\u00f3ticos. Adem\u00e1s, se propone la \"desextinci\u00f3n molecular\" (resucitar mol\u00e9culas de organismos extintos) como nuevo marco para el descubrimiento de f\u00e1rmacos, concretamente para hallar nuevos antibi\u00f3ticos.<\/span><\/li>\n<\/ul>\n<p>El potencial de la IA para descubrir nuevos f\u00e1rmacos a escala est\u00e1 resultando inmenso, y no s\u00f3lo antibi\u00f3ticos, sino <a href=\"https:\/\/dailyai.com\/es\/2023\/07\/ai-accelerates-discovery-of-anti-aging-drugs-in-new-study\/\">medicamentos antienvejecimiento y otros compuestos<\/a>\u00a0tambi\u00e9n.<\/p>","protected":false},"excerpt":{"rendered":"<p>Un equipo de bioingenieros ha utilizado con \u00e9xito la IA para resucitar mol\u00e9culas de nuestro antiguo pasado.  En este interesante estudio se utiliz\u00f3 el aprendizaje autom\u00e1tico para analizar datos prote\u00ednicos de humanos modernos (Homo sapiens) y de nuestros parientes extintos, los neandertales (Homo neanderthalensis) y los denisovanos, una especie o subespecie humana extinguida de Asia.  El estudio descubri\u00f3 mol\u00e9culas con potencial para combatir las bacterias causantes de enfermedades. Estas t\u00e9cnicas, denominadas \"de-extinci\u00f3n\", podr\u00edan servir de base para localizar nuevos antibi\u00f3ticos. \"Nos motiva la idea de recuperar mol\u00e9culas del pasado para abordar problemas actuales\", C\u00e9sar de la Fuente,<\/p>","protected":false},"author":2,"featured_media":3378,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[84],"tags":[259,203,260,178,101],"class_list":["post-3376","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-industry","tag-antibiotics","tag-biotech","tag-drug-discovery","tag-medicine","tag-medtech"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Researchers use machine learning to &#039;resurrect&#039; ancient molecules | DailyAI<\/title>\n<meta name=\"description\" content=\"A team of bioengineers has successfully utilized AI to resurrect molecules from our ancient past.\u00a0\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/dailyai.com\/es\/2023\/07\/researchers-use-machine-learning-to-resurrect-ancient-molecules\/\" \/>\n<meta property=\"og:locale\" content=\"es_ES\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Researchers use machine learning to &#039;resurrect&#039; ancient molecules | DailyAI\" \/>\n<meta property=\"og:description\" content=\"A team of bioengineers has successfully utilized AI to resurrect molecules from our ancient past.\u00a0\" \/>\n<meta property=\"og:url\" content=\"https:\/\/dailyai.com\/es\/2023\/07\/researchers-use-machine-learning-to-resurrect-ancient-molecules\/\" \/>\n<meta property=\"og:site_name\" content=\"DailyAI\" \/>\n<meta property=\"article:published_time\" content=\"2023-07-29T14:42:58+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2023-07-31T09:16:54+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/dailyai.com\/wp-content\/uploads\/2023\/07\/shutterstock_1444962308.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1000\" \/>\n\t<meta property=\"og:image:height\" content=\"614\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Sam Jeans\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@DailyAIOfficial\" \/>\n<meta name=\"twitter:site\" content=\"@DailyAIOfficial\" \/>\n<meta name=\"twitter:label1\" content=\"Escrito por\" \/>\n\t<meta name=\"twitter:data1\" content=\"Sam Jeans\" \/>\n\t<meta name=\"twitter:label2\" content=\"Tiempo de lectura\" \/>\n\t<meta name=\"twitter:data2\" content=\"4 minutos\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"NewsArticle\",\"@id\":\"https:\\\/\\\/dailyai.com\\\/2023\\\/07\\\/researchers-use-machine-learning-to-resurrect-ancient-molecules\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/dailyai.com\\\/2023\\\/07\\\/researchers-use-machine-learning-to-resurrect-ancient-molecules\\\/\"},\"author\":{\"name\":\"Sam Jeans\",\"@id\":\"https:\\\/\\\/dailyai.com\\\/#\\\/schema\\\/person\\\/711e81f945549438e8bbc579efdeb3c9\"},\"headline\":\"Researchers use machine learning to &#8216;resurrect&#8217; 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