{"id":70399,"date":"2025-08-02T12:00:00","date_gmt":"2025-08-02T12:00:00","guid":{"rendered":"https:\/\/www.africa-press.net\/senegal\/politique\/promesses-anticancer-de-limmunotherapie"},"modified":"2025-08-02T12:00:00","modified_gmt":"2025-08-02T12:00:00","slug":"promesses-anticancer-de-limmunotherapie","status":"publish","type":"post","link":"https:\/\/www.africa-press.net\/senegal\/toutes-les-actualites\/promesses-anticancer-de-limmunotherapie","title":{"rendered":"Promesses Anticancer de L\u2019Immunoth\u00e9rapie"},"content":{"rendered":"<p><span style=\"color: #ff6600\"><strong>Africa-Press &#8211; Senegal. <\/strong><\/span>Objectif 2040: 80 % des patients gue\u0301ris, annonc\u0327ait en janvier l\u2019Institut Gustave-Roussy, a\u0300 Villejuif, re\u0301fe\u0301rence dans la prise en charge du cancer. Pour son directeur ge\u0301ne\u0301ral Fabrice Barlesi, \u00ab l\u2019impact des immunothe\u0301rapies sera majeur \u00bb, et concernera quasiment \u00ab l\u2019ensemble des malades \u00bb.<\/p>\n<p>Le principe est de s\u2019appuyer sur le syste\u0300me immunitaire du patient en en ame\u0301liorant l\u2019efficacite\u0301 et la spe\u0301cificite\u0301. Aujourd\u2019hui, les immunothe\u0301rapies sont capables de \u00ab lever le masque pre\u0301sent sur les cellules tumorales \u00bb qui empe\u0302chaient jusque-la\u0300 les cellules immunitaires de les de\u0301truire, explique de son co\u0302te\u0301 le Pr Nicolas Girard, a\u0300 l\u2019Institut Curie, a\u0300 Paris.<\/p>\n<p>Les anticorps anti-PDL1, dont le premier (Yervoy) a e\u0301te\u0301 approuve\u0301 en 2011 en Europe, empe\u0302chent par exemple les cellules tumorales de passer pour des cellules saines aupre\u0300s des lymphocytes (globules blancs). \u00ab Parmi les immunothe\u0301rapies, les immune checkpoints [inhibiteur de point de contro\u0302le] \u2013 ou ICI \u2013 comme antiPDL1 sont les plus avance\u0301s avec plus de 11 ICI approuve\u0301s aux E\u0301tats-Unis, dans plus de 43 indications \u00ab , de\u0301taille Fabrice Barlesi.<\/p>\n<p><b>Activer la me\u0301moire immunitaire du patient<\/b><\/p>\n<p>Les cellules CAR-T, ces lymphocytes du patient modifie\u0301s en laboratoire pour cibler la tumeur, \u00ab ont aussi des indications claires en he\u0301matologie avec six enregistrements pour six indications \u00bb, dont la premie\u0300re (Kymriah) a e\u0301te\u0301 approuve\u0301e en 2018 en Europe. Encore mieux, les immunothe\u0301rapies induisent un effet vaccinal en activant la me\u0301moire immunitaire. \u00ab On peut donc arre\u0302ter le traitement et le syste\u0300me immunitaire du patient prend le relais \u00bb, explique Nicolas Girard. \u00ab C\u0327a marche encore mieux sur les tumeurs les plus petites. Dans le cancer du poumon avec juste trois injections d\u2019immunothe\u0301rapie, pre\u0300s d\u2019un tiers des malades n\u2019ont plus de cellules cance\u0301reuses ! \u00bb<\/p>\n<p>Malheureusement, 60 % des patients finissent par ne plus re\u0301pondre a\u0300 l\u2019immunothe\u0301rapie, sans que les raisons en soient connues. D\u2019ici a\u0300 ce que l\u2019on en sache plus, le futur de ces traitements passera probablement par les vaccins, notamment ARN, \u00ab soit universels, soit personnalise\u0301s en fonction de la tumeur du patient \u00ab , avance Nicolas Girard, \u00ab principalement au stade de de\u0301pistage pre\u0301coce des personnes a\u0300 risque \u00ab. Pour Fabrice Barlesi aussi, \u00ab les vaccins ARN sont certainement une piste pour combiner sur mesure rapidite\u0301 de de\u0301veloppement, se\u0301curite\u0301 et cou\u0302ts \u00bb.<\/p>\n<p><b>Des e\u0301tudes cliniques dans les cancers ORL, digestifs et thoraciques<\/b><\/p>\n<p>Des e\u0301tudes cliniques explorent de\u0301ja\u0300 cette option dans les cancers ORL, digestifs et thoraciques. En outre, des immunothe\u0301rapies appele\u0301es bispecific T-Cell Engagers semblent e\u0301galement prometteuses. Le Blincyto est la premie\u0300re d\u2019entre elles a\u0300 avoir e\u0301te\u0301 approuve\u0301e en Europe, en 2015. Ces anticorps se lient a\u0300 la fois a\u0300 un re\u0301cepteur spe\u0301cifique de la tumeur et au re\u0301cepteur TCR des lymphocytes T pour les activer et les attirer vers les cellules malignes, et ont montre\u0301 leur efficacite\u0301 dans des cancers du poumon.<\/p>\n<p><strong>Pour plus d&rsquo;informations et d&rsquo;analyses sur la <span style=\"color: #ff6600\">Senegal<\/span>, suivez <span style=\"color: #ff6600\">Africa-Press<span style=\"color: #ff6600\"><\/span><\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Africa-Press &#8211; Senegal. Objectif 2040: 80 % des patients gue\u0301ris, annonc\u0327ait en janvier l\u2019Institut Gustave-Roussy, a\u0300 Villejuif, re\u0301fe\u0301rence dans la prise en charge du cancer. Pour son directeur ge\u0301ne\u0301ral Fabrice Barlesi, \u00ab l\u2019impact des immunothe\u0301rapies sera majeur \u00bb, et concernera quasiment \u00ab l\u2019ensemble des malades \u00bb. Le principe est de s\u2019appuyer sur le syste\u0300me immunitaire [&hellip;]<\/p>\n","protected":false},"author":82,"featured_media":70398,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[22,10],"tags":[44],"class_list":["post-70399","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-divers","category-toutes-les-actualites","tag-senegal-2"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v26.1 (Yoast SEO v27.0) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Promesses Anticancer de L\u2019Immunoth\u00e9rapie - Senegal<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.africa-press.net\/senegal\/politique\/promesses-anticancer-de-limmunotherapie\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Promesses Anticancer de L\u2019Immunoth\u00e9rapie\" \/>\n<meta property=\"og:description\" content=\"Africa-Press &#8211; Senegal. Objectif 2040: 80 % des patients gue\u0301ris, annonc\u0327ait en janvier l\u2019Institut Gustave-Roussy, a\u0300 Villejuif, re\u0301fe\u0301rence dans la prise en charge du cancer. Pour son directeur ge\u0301ne\u0301ral Fabrice Barlesi, \u00ab l\u2019impact des immunothe\u0301rapies sera majeur \u00bb, et concernera quasiment \u00ab l\u2019ensemble des malades \u00bb. 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