{"id":950,"date":"2023-05-27T14:40:15","date_gmt":"2023-05-27T14:40:15","guid":{"rendered":"https:\/\/dailyai.com\/?p=950"},"modified":"2023-06-01T09:26:45","modified_gmt":"2023-06-01T09:26:45","slug":"ai-helps-researchers-discover-a-new-antibiotic-for-treating-drug-resistant-bacteria","status":"publish","type":"post","link":"https:\/\/dailyai.com\/fr\/2023\/05\/ai-helps-researchers-discover-a-new-antibiotic-for-treating-drug-resistant-bacteria\/","title":{"rendered":"L'IA d\u00e9couvre un nouvel antibiotique pour les bact\u00e9ries r\u00e9sistantes aux m\u00e9dicaments"},"content":{"rendered":"<p><b>L'humanit\u00e9 a pris du retard dans la lutte contre les bact\u00e9ries r\u00e9sistantes aux m\u00e9dicaments, mais l'IA pourrait s'av\u00e9rer \u00eatre notre arme secr\u00e8te.\u00a0<\/b><\/p>\n<p><span style=\"font-weight: 400\">Les agents pathog\u00e8nes r\u00e9sistants aux antibiotiques sont responsables d'entre <\/span><a href=\"https:\/\/www.thelancet.com\/journals\/lancet\/article\/PIIS0140-6736(21)02724-0\/fulltext\"><span style=\"font-weight: 400\">1 \u00e0 5 millions de d\u00e9c\u00e8s<\/span><\/a><span style=\"font-weight: 400\"> par an.\u00a0\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400\">Peu de nouveaux antibiotiques ont \u00e9t\u00e9 d\u00e9velopp\u00e9s au cours de la derni\u00e8re d\u00e9cennie, et la majorit\u00e9 d'entre eux sont de l\u00e9g\u00e8res modifications apport\u00e9es aux antibiotiques existants.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400\">La d\u00e9couverte de nouveaux m\u00e9dicaments est une t\u00e2che exceptionnellement laborieuse, mais une \u00e9tude r\u00e9cente a permis d'exploiter l'IA pour passer automatiquement au crible des milliers de compos\u00e9s afin de d\u00e9couvrir des pistes pour des essais en laboratoire.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400\">Les <\/span><a href=\"https:\/\/www.nature.com\/articles\/s41589-023-01349-8.epdf?sharing_token=8HV9JdX6i-6DpHj0fv2wOtRgN0jAjWel9jnR3ZoTv0PgqDK_eQp8NcAST1F90jpq3WEGXG2Su3RGayoL_4HVm-885WktBHURHlCxulwlcvqKkHgdWqrHo6v6OktzRXc-zL4MsysGdAFnKBAI2wyymCj5gtw5qVJSvyZDrTK_wGIpI8eaOx1jqmIvwv1jdlYBYoAQi8TfYbpGh2Cfrhw5BG1rJNzyE_FFkgm1zzQdwpc%3D&amp;tracking_referrer=www.bbc.co.uk\"><span style=\"font-weight: 400\">\u00e9tude<\/span><\/a><span style=\"font-weight: 400\">publi\u00e9e dans Nature Chemical Biology, des chercheurs du MIT et de l'Universit\u00e9 McMaster ont tent\u00e9 de d\u00e9couvrir de nouveaux m\u00e9dicaments pour tuer les bact\u00e9ries.<\/span><i><span style=\"font-weight: 400\"> Acinetobacter baumannii<\/span><\/i><span style=\"font-weight: 400\">, une bact\u00e9rie que le <\/span><a href=\"https:\/\/www.who.int\/news\/item\/27-02-2017-who-publishes-list-of-bacteria-for-which-new-antibiotics-are-urgently-needed\"><span style=\"font-weight: 400\">L'OMS a identifi\u00e9<\/span><\/a><span style=\"font-weight: 400\"> comme une \"menace critique\".<\/span><\/p>\n<p><span style=\"font-weight: 400\">Les chercheurs ont utilis\u00e9 deux mod\u00e8les d'apprentissage automatique pour automatiser le processus de d\u00e9couverte de m\u00e9dicaments. <\/span><a href=\"https:\/\/www.ncbi.nlm.nih.gov\/pmc\/articles\/PMC1978274\/\"><i><span style=\"font-weight: 400\">in silico<\/span><\/i><\/a><span style=\"font-weight: 400\">qui signifie \"dans un ordinateur\".<\/span><\/p>\n<p><span style=\"font-weight: 400\">Voici comment cela s'est pass\u00e9 :<\/span><\/p>\n<p><b>Donn\u00e9es de formation obtenues<\/b><\/p>\n<ul>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Les chercheurs ont expos\u00e9 des <\/span><i><span style=\"font-weight: 400\">A. baumannii<\/span><\/i><span style=\"font-weight: 400\"> \u00e0 environ 7 500 compos\u00e9s chimiques diff\u00e9rents et on a v\u00e9rifi\u00e9 quels compos\u00e9s inhibaient la croissance du microbe.<\/span><\/li>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Les structures chimiques de ceux qui inhibent la croissance ont \u00e9t\u00e9 introduites dans un mod\u00e8le d'apprentissage automatique. Le mod\u00e8le a ainsi pu apprendre les caract\u00e9ristiques chimiques associ\u00e9es \u00e0 l'inhibition de la croissance.<\/span><\/li>\n<\/ul>\n<p><b>Entra\u00eenement et test du mod\u00e8le<\/b><\/p>\n<ul>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Une fois le mod\u00e8le entra\u00een\u00e9, les chercheurs l'ont utilis\u00e9 pour analyser un ensemble de 6 680 compos\u00e9s que le mod\u00e8le n'avait jamais rencontr\u00e9s auparavant. Ces compos\u00e9s provenaient du Drug Repurposing Hub du Broad Institute. Le mod\u00e8le a s\u00e9lectionn\u00e9 quelques centaines de compos\u00e9s.<\/span><\/li>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Les chercheurs ont choisi 240 d'entre eux pour les tester exp\u00e9rimentalement en laboratoire.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Ils se sont concentr\u00e9s sur les compos\u00e9s pr\u00e9sentant des structures diff\u00e9rentes de celles des antibiotiques existants, car ils sont ainsi plus susceptibles d'\u00e9chapper \u00e0 la r\u00e9sistance aux antibiotiques.\u00a0<\/span><\/li>\n<\/ul>\n<p><b>Tests exp\u00e9rimentaux en laboratoire<\/b><\/p>\n<ul>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Les tests de laboratoire ont permis de r\u00e9duire la liste \u00e0 9 antibiotiques.<\/span><\/li>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Parmi ceux-ci, un compos\u00e9 initialement explor\u00e9 comme m\u00e9dicament potentiel contre le diab\u00e8te s'est av\u00e9r\u00e9 extr\u00eamement efficace pour tuer les bact\u00e9ries. <\/span><i><span style=\"font-weight: 400\">A. baumannii<\/span><\/i><span style=\"font-weight: 400\">. Le m\u00e9dicament \u00e9tait appel\u00e9 \"abaucin\".\u00a0<\/span><\/li>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Curieusement, il n'a pas affect\u00e9 d'autres esp\u00e8ces de bact\u00e9ries, y compris les suivantes <\/span><i><span style=\"font-weight: 400\">Pseudomonas aeruginosa, Staphylococcus aureus, <\/span><\/i><span style=\"font-weight: 400\">et <\/span><i><span style=\"font-weight: 400\">Ent\u00e9robact\u00e9ries.<\/span><\/i><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400\">Stokes, qui a travaill\u00e9 sur le projet, <\/span><a href=\"https:\/\/www.bbc.co.uk\/news\/health-65709834\"><span style=\"font-weight: 400\">a d\u00e9clar\u00e9 \u00e0 la BBC<\/span><\/a><span style=\"font-weight: 400\">\"C'est l\u00e0 que le travail commence\".\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400\">L'antibiotique fera l'objet d'une longue proc\u00e9dure d'essai pour \u00e9valuer sa s\u00e9curit\u00e9 chez l'homme, qui pourrait ne pas \u00eatre achev\u00e9e avant 2030.<\/span><\/p>\n<p><span style=\"font-weight: 400\">Malgr\u00e9 cela, l'IA acc\u00e9l\u00e8re la t\u00e2che laborieuse de l'exploration de nouveaux m\u00e9dicaments, en aidant les chercheurs \u00e0 d\u00e9couvrir des compos\u00e9s antimicrobiens int\u00e9ressants et nouveaux. Nombre d'entre eux ont \u00e9t\u00e9 d\u00e9velopp\u00e9s \u00e0 d'autres fins, ils existent donc d\u00e9j\u00e0, il suffit de les trouver.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400\">Selon le Dr Stokes, \"l'IA augmente le rythme et, dans un monde parfait, diminue le co\u00fbt de la d\u00e9couverte de ces nouvelles classes d'antibiotiques dont nous avons d\u00e9sesp\u00e9r\u00e9ment besoin\".\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400\">Alors que les tests de s\u00e9curit\u00e9 sur les humains restent un processus lent, les pipelines de recherche soutenus par l'IA ne manqueront pas d'acc\u00e9l\u00e9rer la mise sur le march\u00e9 des antibiotiques et d'autres produits pharmaceutiques. <\/span><\/p>","protected":false},"excerpt":{"rendered":"<p>L'humanit\u00e9 a pris du retard dans la lutte contre les bact\u00e9ries r\u00e9sistantes aux m\u00e9dicaments, mais l'IA pourrait s'av\u00e9rer \u00eatre notre arme secr\u00e8te.  Les agents pathog\u00e8nes r\u00e9sistants aux antibiotiques sont responsables de 1 \u00e0 5 millions de d\u00e9c\u00e8s par an.   Peu de nouveaux antibiotiques ont \u00e9t\u00e9 mis au point au cours de la derni\u00e8re d\u00e9cennie, et la majorit\u00e9 d'entre eux sont de l\u00e9g\u00e8res modifications apport\u00e9es aux antibiotiques existants.  La d\u00e9couverte de nouveaux m\u00e9dicaments est exceptionnellement laborieuse, mais une r\u00e9cente \u00e9tude de r\u00e9f\u00e9rence a exploit\u00e9 l'IA pour passer automatiquement au crible des milliers de compos\u00e9s afin de d\u00e9couvrir des pistes \u00e0 tester en laboratoire.  L'\u00e9tude, publi\u00e9e dans Nature Chemical Biology, a vu des chercheurs du MIT et de l'universit\u00e9 McMaster tenter de d\u00e9couvrir de nouveaux m\u00e9dicaments pour tuer l'Acinetobacter baumannii,<\/p>","protected":false},"author":2,"featured_media":951,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[84],"tags":[105,101],"class_list":["post-950","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-industry","tag-machine-learning","tag-medtech"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>AI discovers new antibiotic for drug-resistant bacteria | DailyAI<\/title>\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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researchers from MIT and McMaster University attempt to discover new drugs to kill Acinetobacter baumannii,\" \/>\n<meta property=\"og:url\" content=\"https:\/\/dailyai.com\/fr\/2023\/05\/ai-helps-researchers-discover-a-new-antibiotic-for-treating-drug-resistant-bacteria\/\" \/>\n<meta property=\"og:site_name\" content=\"DailyAI\" \/>\n<meta property=\"article:published_time\" content=\"2023-05-27T14:40:15+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2023-06-01T09:26:45+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/dailyai.com\/wp-content\/uploads\/2023\/05\/shutterstock_367715540.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1000\" \/>\n\t<meta property=\"og:image:height\" content=\"667\" \/>\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 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