{"id":69465,"date":"2024-02-04T16:25:17","date_gmt":"2024-02-04T16:25:17","guid":{"rendered":"https:\/\/www.pharmacie-vezere.com\/promotions\/?p=69465"},"modified":"2024-02-04T16:25:19","modified_gmt":"2024-02-04T16:25:19","slug":"nouvelle-conception-de-vaccin-exploitation-de-limmunite-contre-la-grippe-pour-une-protection-rapide-contre-le-covid-19","status":"publish","type":"post","link":"https:\/\/www.pharmacie-vezere.com\/promotions\/nouvelle-conception-de-vaccin-exploitation-de-limmunite-contre-la-grippe-pour-une-protection-rapide-contre-le-covid-19\/","title":{"rendered":"Nouvelle Conception de Vaccin : Exploitation de l&#8217;Immunit\u00e9 contre la Grippe pour une Protection Rapide contre le COVID-19"},"content":{"rendered":"\n<p><strong>Approche Innovante pour Acc\u00e9l\u00e9rer la Production d&#8217;Anticorps <\/strong><\/p>\n\n\n\n<p>Des chercheurs de l&#8217;Universit\u00e9 de Californie \u00e0 Riverside ont d\u00e9velopp\u00e9 un vaccin r\u00e9volutionnaire qui exploite l&#8217;immunit\u00e9 pr\u00e9existante \u00e0 la grippe pour acc\u00e9l\u00e9rer la production d&#8217;anticorps contre le SARS-CoV-2, le virus responsable du COVID-19. Cette approche novatrice, dirig\u00e9e par Rong Hai, professeur associ\u00e9 de microbiologie et de pathologie v\u00e9g\u00e9tale, vise \u00e0 r\u00e9duire consid\u00e9rablement le temps n\u00e9cessaire \u00e0 notre corps pour d\u00e9velopper une r\u00e9ponse en anticorps protectrice apr\u00e8s la vaccination contre le COVID-19.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"1024\" src=\"https:\/\/www.pharmacie-vezere.com\/promotions\/wp-content\/uploads\/2024\/02\/A-futuristic-medical.webp\" alt=\"\" class=\"wp-image-69466\" srcset=\"https:\/\/www.pharmacie-vezere.com\/promotions\/wp-content\/uploads\/2024\/02\/A-futuristic-medical.webp 1024w, https:\/\/www.pharmacie-vezere.com\/promotions\/wp-content\/uploads\/2024\/02\/A-futuristic-medical-300x300.webp 300w, https:\/\/www.pharmacie-vezere.com\/promotions\/wp-content\/uploads\/2024\/02\/A-futuristic-medical-150x150.webp 150w, https:\/\/www.pharmacie-vezere.com\/promotions\/wp-content\/uploads\/2024\/02\/A-futuristic-medical-768x768.webp 768w, https:\/\/www.pharmacie-vezere.com\/promotions\/wp-content\/uploads\/2024\/02\/A-futuristic-medical-200x200.webp 200w, https:\/\/www.pharmacie-vezere.com\/promotions\/wp-content\/uploads\/2024\/02\/A-futuristic-medical-100x100.webp 100w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p>Habituellement, il faut des semaines au corps humain pour g\u00e9n\u00e9rer des anticorps protecteurs apr\u00e8s la vaccination contre le COVID-19. Cependant, le nouveau design du vaccin tire parti de la r\u00e9ponse immunitaire existante \u00e0 la grippe. &#8220;Tout retard dans la r\u00e9ponse immunitaire au SARS-CoV-2 signifie qu&#8217;il y a un moment o\u00f9 les gens sont mal prot\u00e9g\u00e9s contre le virus&#8221;, explique Hai. &#8220;Notre vaccin est con\u00e7u pour obtenir plus rapidement ces r\u00e9ponses en anticorps protecteurs, afin que les gens ne soient pas vuln\u00e9rables au coronavirus. C&#8217;est une meilleure protection pour tout le monde.&#8221;<\/p>\n\n\n\n<p>La Science derri\u00e8re le Vaccin Le vaccin innovant combine une prot\u00e9ine de fusion, m\u00e9langeant la nucl\u00e9oprot\u00e9ine du virus de la grippe A et le domaine de liaison au r\u00e9cepteur (RBD) de la prot\u00e9ine de pointe du SARS-CoV-2. Le virus utilise cette prot\u00e9ine de pointe pour se fixer aux r\u00e9cepteurs des cellules, initiant l&#8217;infection. Les anticorps contre le RBD peuvent bloquer ce processus, emp\u00eachant l&#8217;infection des cellules.<\/p>\n\n\n\n<p>Harrison Dulin, premier auteur de l&#8217;\u00e9tude, d\u00e9crit le d\u00e9fi : <\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>Pour que davantage de cellules B soient activ\u00e9es et commencent \u00e0 produire des anticorps contre le RBD, deux \u00e9tapes sont n\u00e9cessaires. D&#8217;abord, la cellule B doit rencontrer la prot\u00e9ine RBD, et ensuite, la cellule B doit \u00eatre activ\u00e9e par une cellule T auxiliaire.&#8221; <\/p>\n<\/blockquote>\n\n\n\n<p>Le nouveau design acc\u00e9l\u00e8re ce processus en utilisant des cellules T auxiliaires g\u00e9n\u00e9r\u00e9es en r\u00e9ponse \u00e0 une infection grippale, acc\u00e9l\u00e9rant ainsi la production d&#8217;anticorps contre le SARS-CoV-2.<\/p>\n\n\n\n<p><strong>Impact Potentiel et Orientations Futures <\/strong><\/p>\n\n\n\n<p>Le design du vaccin pr\u00e9sente un potentiel significatif, en particulier pour les pays \u00e0 faibles ressources. &#8220;\u00c9tant donn\u00e9 la simplicit\u00e9 de notre nouveau design, cela ne n\u00e9cessiterait pas que ces pays acqui\u00e8rent un \u00e9quipement compliqu\u00e9 ou co\u00fbteux suppl\u00e9mentaire&#8221;, remarque Hai. Cette approche pourrait \u00eatre vitale pour r\u00e9pondre aux futures pand\u00e9mies, comme le sugg\u00e8re Emma H. Wilson, coauteure et professeure de sciences biom\u00e9dicales : &#8220;Elle pourrait \u00eatre particuli\u00e8rement utile si nous devons un jour faire face au SARS-CoV-3 ou \u00e0 un autre virus de pand\u00e9mie nouveau.&#8221;<\/p>\n\n\n\n<p>Malgr\u00e9 les r\u00e9sultats encourageants chez les souris, des recherches suppl\u00e9mentaires et des essais cliniques sont n\u00e9cessaires pour d\u00e9terminer la s\u00e9curit\u00e9 et l&#8217;efficacit\u00e9 du vaccin chez l&#8217;homme. L&#8217;\u00e9quipe reconna\u00eet la variabilit\u00e9 de l&#8217;immunit\u00e9 pr\u00e9existante \u00e0 la grippe parmi les individus et la n\u00e9cessit\u00e9 de tester le vaccin dans divers contextes immunitaires.<\/p>\n\n\n\n<p>La recherche, utilisant le nouveau laboratoire de bios\u00e9curit\u00e9 de niveau 3 de l&#8217;universit\u00e9, d\u00e9montre le potentiel du vaccin \u00e0 neutraliser le SARS-CoV-2 vivant. Cette perc\u00e9e pourrait marquer une avanc\u00e9e significative dans notre capacit\u00e9 \u00e0 r\u00e9pondre plus rapidement et plus efficacement aux agents pathog\u00e8nes viraux \u00e9mergents.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Approche Innovante pour Acc\u00e9l\u00e9rer la Production d&#8217;Anticorps Des chercheurs de l&#8217;Universit\u00e9 de Californie \u00e0 Riverside ont d\u00e9velopp\u00e9 un vaccin r\u00e9volutionnaire qui exploite l&#8217;immunit\u00e9 pr\u00e9existante \u00e0 la grippe pour acc\u00e9l\u00e9rer la production d&#8217;anticorps contre le SARS-CoV-2, le virus responsable du COVID-19. Cette approche novatrice, dirig\u00e9e par Rong Hai, professeur associ\u00e9 de microbiologie et de pathologie v\u00e9g\u00e9tale, [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":69467,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[684],"tags":[],"class_list":["post-69465","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-nouvelles-pharmaceutiques"],"_links":{"self":[{"href":"https:\/\/www.pharmacie-vezere.com\/promotions\/wp-json\/wp\/v2\/posts\/69465","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.pharmacie-vezere.com\/promotions\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.pharmacie-vezere.com\/promotions\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.pharmacie-vezere.com\/promotions\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.pharmacie-vezere.com\/promotions\/wp-json\/wp\/v2\/comments?post=69465"}],"version-history":[{"count":1,"href":"https:\/\/www.pharmacie-vezere.com\/promotions\/wp-json\/wp\/v2\/posts\/69465\/revisions"}],"predecessor-version":[{"id":69468,"href":"https:\/\/www.pharmacie-vezere.com\/promotions\/wp-json\/wp\/v2\/posts\/69465\/revisions\/69468"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.pharmacie-vezere.com\/promotions\/wp-json\/wp\/v2\/media\/69467"}],"wp:attachment":[{"href":"https:\/\/www.pharmacie-vezere.com\/promotions\/wp-json\/wp\/v2\/media?parent=69465"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.pharmacie-vezere.com\/promotions\/wp-json\/wp\/v2\/categories?post=69465"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.pharmacie-vezere.com\/promotions\/wp-json\/wp\/v2\/tags?post=69465"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}