{"id":25518,"date":"2022-01-04T17:48:37","date_gmt":"2022-01-04T14:48:37","guid":{"rendered":"https:\/\/zdmaa.com\/how-can-a-virus-cause-cancer\/"},"modified":"2022-05-21T10:41:56","modified_gmt":"2022-05-21T07:41:56","slug":"how-can-a-virus-cause-cancer","status":"publish","type":"post","link":"https:\/\/zdmaa.com\/fr\/how-can-a-virus-cause-cancer\/","title":{"rendered":"Comment le virus peut-il causer le cancer ?"},"content":{"rendered":"

Comment le virus peut-il causer le cancer ?<\/span><\/span><\/span><\/span><\/p>\n

\n

Lorsque vous entendez le mot \u00ab\u00a0virus\u00a0\u00bb, vous pensez peut-\u00eatre \u00e0 des maladies b\u00e9nignes et temporaires, comme un rhume ou une grippe qui dure 24\u00a0heures. <\/span>Mais certains virus ont \u00e9galement \u00e9t\u00e9 li\u00e9s \u00e0 certains types de cancer. <\/span>Au fur et \u00e0 mesure que la communaut\u00e9 m\u00e9dicale en a appris davantage sur ces liens, elle a d\u00e9velopp\u00e9 des vaccins qui, en prot\u00e9geant contre certaines infections virales, aident \u00e0 pr\u00e9venir le cancer. <\/span>Un exemple notable est le vaccin contre le virus du papillome humain (VPH), qui a \u00e9t\u00e9 d\u00e9velopp\u00e9 pour la premi\u00e8re fois il y a un peu plus de dix ans. <\/span>\u00abLa connaissance des virus et de leurs relations potentielles avec le cancer a augment\u00e9 au cours de la derni\u00e8re d\u00e9cennie\u00bb, d\u00e9clare Natalie Godbey, oncologue gyn\u00e9cologique \u00e0 notre h\u00f4pital pr\u00e8s de Phoenix. <\/span>\u00ab\u00a0Mais il y a toujours place \u00e0 l’am\u00e9lioration.\u00a0\u00bb <\/span>De nombreux virus associ\u00e9s au cancer n’ont pas encore de vaccins con\u00e7us pour les pr\u00e9venir.<\/span><\/span><\/p>\n

Virus, infections et cancer<\/span><\/span><\/h2>\n

Lorsque les virus provoquent une infection, ils propagent leur ADN, affectant la constitution g\u00e9n\u00e9tique des cellules saines et les faisant potentiellement se transformer en cancer. <\/span>L’infection par le VPH, par exemple, provoque la combinaison de l’ADN du virus avec l’ADN de l’h\u00f4te, perturbant le fonctionnement normal des cellules. <\/span>D’autres virus, tels que le virus de l’immunod\u00e9ficience humaine (VIH) et le virus de l’h\u00e9patite C (VHC), peuvent augmenter le risque de d\u00e9velopper un cancer en affectant le syst\u00e8me immunitaire de l’organisme. <\/span>Dans la plupart des cas, certains virus n’affectent que certaines cellules du corps, comme les virus du rhume qui affectent la muqueuse du nez et de la gorge. <\/span>C’est pourquoi certains virus ne sont li\u00e9s qu’\u00e0 certains types de cancer.<\/span><\/span><\/p>\n

Bien que la plupart des personnes infect\u00e9es par le VPH ne d\u00e9veloppent pas de cancer, certaines souches puissantes du virus sont \u00e0 l’origine de la grande majorit\u00e9 des cancers du col de l’ut\u00e9rus, qui est le deuxi\u00e8me type de cancer le plus courant chez les femmes dans le monde. <\/span>\u00ab\u00a0Le VPH cause environ 98\u00a0% des cas de cancer du col de l’ut\u00e9rus, c’est donc tr\u00e8s pr\u00e9occupant\u00a0\u00bb, d\u00e9clare le Dr Goodby. <\/span>Les patients infect\u00e9s par le VPH doivent subir des tests appropri\u00e9s au moment du diagnostic, comme une colposcopie, et doivent \u00eatre r\u00e9guli\u00e8rement suivis avec des d\u00e9pistages. <\/span>Un test Pap, ou frottis Pap, permet aux m\u00e9decins de d\u00e9tecter les changements pr\u00e9canc\u00e9reux dans les cellules du col de l’ut\u00e9rus, ce qui facilite les efforts d’intervention pr\u00e9coce visant \u00e0 pr\u00e9venir le d\u00e9veloppement du cancer du col de l’ut\u00e9rus. <\/span>Apr\u00e8s l’introduction du test Pap dans les ann\u00e9es 1950, l’incidence du cancer du col de l’ut\u00e9rus a consid\u00e9rablement diminu\u00e9, explique le Dr Goodby.<\/span><\/span><\/p>\n

Mais le VPH n’est pas seulement li\u00e9 au cancer du col de l’ut\u00e9rus. <\/span>Il a \u00e9galement \u00e9t\u00e9 li\u00e9 aux cancers du vagin, de la vulve, de l’anus et de la t\u00eate et du cou, ce qui rend les efforts d’\u00e9ducation encore plus importants pour la pr\u00e9vention. <\/span>\u00ab\u00a0Nous connaissons le lien entre le VPH et le cancer du col de l’ut\u00e9rus depuis des ann\u00e9es, mais la plupart des gens ne savent pas que ce virus peut \u00e9galement \u00eatre un lien direct avec ces autres cancers\u00a0\u00bb, explique le Dr Goodby. <\/span>Bien que les hommes contractent le VPH \u00e0 peu pr\u00e8s au m\u00eame rythme que les femmes, aucun test de d\u00e9pistage n’est disponible pour diagnostiquer le VPH chez les hommes.<\/span><\/span><\/p>\n

Virus courants associ\u00e9s au cancer<\/span><\/span><\/h2>\n

<\/h3>\n

Les autres types courants de virus associ\u00e9s au cancer comprennent\u00a0:<\/span><\/span><\/p>\n

    \n
  • Le <\/span><\/span>virus d’Epstein-Barr (EBV)<\/span><\/span><\/strong> , le type de virus de l’herp\u00e8s le plus souvent associ\u00e9 \u00e0 la mononucl\u00e9ose infectieuse, ou \u00ab\u00a0mono\u00a0\u00bb. <\/span>L’infection \u00e0 EBV augmente le risque de d\u00e9velopper un cancer du nasopharynx, certains types de lymphomes \u00e0 croissance rapide et certains cancers de l’estomac. <\/span>Comme le VPH, l’infection \u00e0 EBV est courante, mais pas le cancer li\u00e9 \u00e0 l’EBV.<\/span><\/span><\/li>\n
  • Virus de l’h\u00e9patite B (VHB) et VHC<\/span><\/span><\/strong> , qui causent l’h\u00e9patite virale, un type d’infection du foie. <\/span>Les infections chroniques du foie caus\u00e9es par l’h\u00e9patite B et le VHC sont rares, mais lorsqu’elles surviennent, elles augmentent le risque de d\u00e9velopper un cancer du foie. <\/span>Moins de la moiti\u00e9 des cancers du foie aux \u00c9tats-Unis sont associ\u00e9s au virus de l’h\u00e9patite B ou \u00e0 l’infection par le VHC.<\/span><\/span><\/li>\n
  • Le VIH<\/span><\/span><\/strong> , responsable du syndrome d’immunod\u00e9ficience acquise (SIDA). <\/span>Le VIH augmente le risque de plusieurs types de cancer, notamment le sarcome de Kaposi, le cancer du col de l’ut\u00e9rus, le lymphome non hodgkinien, le cancer anal et le cancer du poumon.<\/span><\/span><\/li>\n<\/ul>\n

     <\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

    Comment le virus peut-il causer le cancer ? Lorsque vous entendez le mot \u00ab\u00a0virus\u00a0\u00bb, vous pensez peut-\u00eatre \u00e0 des maladies b\u00e9nignes et temporaires, comme un rhume ou une grippe qui dure 24\u00a0heures. Mais certains virus ont \u00e9galement \u00e9t\u00e9 li\u00e9s \u00e0 certains types de cancer. Au fur et \u00e0 mesure que la communaut\u00e9 m\u00e9dicale en a …<\/p>\n","protected":false},"author":1,"featured_media":15899,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[17],"tags":[6384,6377,6385,6369,6370,6387,6376,6379,6383,6372,6374,6367,6381,6382,6386,6378,6380,6373,6371,6375,6368],"class_list":["post-25518","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-non-classifiee","tag-alternative-medicine","tag-alzheimers-disease","tag-cancer-fr","tag-cancer-phase-terminale","tag-cancer-prostate","tag-cancer-survival-fr","tag-cardiovascular-disease","tag-intermittent-fasting","tag-jeune-intermittent","tag-kill-cancer","tag-killing-cancer","tag-mourir-du-cancer","tag-myeloproliferative-neoplasms","tag-pan-dimensional-vending-machine","tag-prostate-cancer-fr","tag-scp-261-pan-dimensional-vending-machine","tag-standard-american-diet","tag-survive-cancer","tag-survivre-au-cancer","tag-tcc-cancer","tag-tuer-le-cancer"],"yoast_head":"\nComment le virus peut-il causer le cancer ? - zdmaa<\/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:\/\/zdmaa.com\/fr\/how-can-a-virus-cause-cancer\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Comment le virus peut-il causer le cancer ? - zdmaa\" \/>\n<meta property=\"og:description\" content=\"Comment le virus peut-il causer le cancer ? 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