{"id":18440,"date":"2026-07-26T13:11:50","date_gmt":"2026-07-26T11:11:50","guid":{"rendered":"https:\/\/rvh-synergie.org\/actualites\/bryan-johnson-sest-clone-et-a-encore-exagere\/"},"modified":"2026-07-26T13:11:50","modified_gmt":"2026-07-26T11:11:50","slug":"bryan-johnson-sest-clone-et-a-encore-exagere","status":"publish","type":"post","link":"https:\/\/rvh-synergie.org\/actualites\/bryan-johnson-sest-clone-et-a-encore-exagere\/","title":{"rendered":"Bryan Johnson s\u2019est \u00ab clon\u00e9 \u00bb \u2013 et a encore exag\u00e9r\u00e9"},"content":{"rendered":"<p><!--$--><br \/>\n<!--\/--><br \/>\n<!--$--><\/p>\n<div data-hk=\"0000a124212000a23100\" class=\"Html-Block\" data-qa-article-content-text data-text-milestone-block>\n<p>Cela fait moins de quatre semaines que le millionnaire de la technologie et gourou de la long\u00e9vit\u00e9 Bryan Johnson a fait la une des journaux du monde entier. Fin juin 2026, l\u2019Am\u00e9ricain annon\u00e7ait que son \u00ab estomac se mangeait tout seul \u00bb. La cause est une forme incurable et auto-immune d\u2019inflammation chronique de la muqueuse gastrique, \u00e9galement connue sous le nom de gastrite. Celui-ci attaque les cellules de la muqueuse, mais ne les ronge pas.<\/p>\n<\/div>\n<div data-hk=\"0000a124212000a23110\" class=\"Html-Block\" data-qa-article-content-text data-text-milestone-block>\n<p>Aujourd&rsquo;hui, il choque \u00e0 nouveau ses abonn\u00e9s sur la plateforme X : \u00ab\u00a0Je viens de me cloner&#8230; quand j&rsquo;\u00e9tais nouveau-n\u00e9.\u00a0\u00bb Ce faisant, il veut faire un pas de plus vers son objectif : trouver un rem\u00e8de \u00e0 sa gastrite auto-immune. Apr\u00e8s le diagnostic, il a annonc\u00e9 qu&rsquo;il cr\u00e9erait un mod\u00e8le de laboratoire de ses cellules immunitaires. Il souhaite utiliser ce \u00ab Bryan dans la bo\u00eete de P\u00e9tri \u00bb pour tester de nouvelles th\u00e9rapies.<\/p>\n<\/div>\n<aside data-hk=\"0000a124212000a2312004\" data-qa-ad-slot class=\"Ad-Slot Ad-Slot-mobile Ad-Slot-hor Ad-Slot-FC\">\n<div class=\"Ad-Slot-FC-Container\">\n<div class=\"Ad-Slot-FC-Window\">\n<div id=\"ad-slot-mobile-hor-2\" data-orientation=\"hor\" data-index=\"2\" data-slot=\"ad-slot\" data-device=\"mobile\"><\/div>\n<\/div>\n<\/div>\n<\/aside>\n<div data-hk=\"0000a124212000a23130\" class=\"Html-Block\" data-qa-article-content-text data-text-milestone-block>\n<p>Il semble d\u00e9sormais avoir r\u00e9ussi \u00e0 faire le premier pas vers cet objectif, puisqu&rsquo;il l&rsquo;annonce : \u00ab\u00a0Ce petit Bryan vit dans une bo\u00eete de P\u00e9tri pour l&rsquo;instant\u00a0\u00bb, \u00e9crit-il sur X.<\/p>\n<\/div>\n<div id=\"isl-6-SocialWidget\" data-island=\"SocialWidgetBase\">\n<div data-hk=\"00\" class=\"center-sm Social-Widget\">\n<div data-hk=\"0160\" class=\"mb-lg center-sm Social-Widget__twitter\"><\/div>\n<\/div>\n<\/div>\n<div data-hk=\"0000a124212000a23150\" class=\"Html-Block\" data-qa-article-content-text data-text-milestone-block>\n<h2>Tout d\u2019abord : Johnson ne s\u2019est pas clon\u00e9<\/h2>\n<p>Malgr\u00e9 la formulation sinistre, Johnson n\u2019a pas produit d\u2019\u00eatre humain ni de \u00ab b\u00e9b\u00e9 Bryan \u00bb. Le terme \u00ab clone \u00bb est trompeur : il serait \u00e9galement interdit aux \u00c9tats-Unis et en Allemagne. Ce qu\u2019il d\u00e9crit est un processus connu de longue date dans la recherche sur les cellules souches : la production de cellules souches pluripotentes induites, iPSC en abr\u00e9g\u00e9.<\/p>\n<\/div>\n<aside data-hk=\"0000a124212000a2316004\" data-qa-ad-slot class=\"Ad-Slot Ad-Slot-mobile Ad-Slot-out\">\n<div id=\"ad-slot-mobile-out-1\" data-orientation=\"out\" data-index=\"1\" data-slot=\"ad-slot\" data-device=\"mobile\"><\/div>\n<\/aside>\n<div data-hk=\"0000a124212000a23170\" class=\"Ad-Carousel mb-xl row\">\n<div data-hk=\"0000a124212000a231710\" class=\"col-lg-4\">\n<div data-hk=\"0000a124212000a231711004\" data-qa-ad-slot class=\"Ad-Slot Ad-Slot-desktop Ad-Slot-ver\" role=\"region\" aria-label=\"Anzeige 1\">\n<div id=\"ad-slot-desktop-ver-1\" data-orientation=\"ver\" data-index=\"1\" data-slot=\"ad-slot\" data-device=\"desktop\"><\/div>\n<\/div>\n<\/div>\n<div data-hk=\"0000a124212000a231712\" class=\"col-lg-4\">\n<aside data-hk=\"0000a124212000a231713004\" data-qa-ad-slot class=\"Ad-Slot Ad-Slot-desktop Ad-Slot-ver Ad-Slot-FC\">\n<div class=\"Ad-Slot-FC-Container\">\n<div class=\"Ad-Slot-FC-Window\">\n<div id=\"ad-slot-desktop-ver-2\" data-orientation=\"ver\" data-index=\"2\" data-slot=\"ad-slot\" data-device=\"desktop\"><\/div>\n<\/div>\n<\/div>\n<\/aside>\n<\/div>\n<div data-hk=\"0000a124212000a231714\" class=\"col-lg-4\">\n<div data-hk=\"0000a124212000a231715004\" data-qa-ad-slot class=\"Ad-Slot Ad-Slot-desktop Ad-Slot-ver\" role=\"region\" aria-label=\"Anzeige 3\">\n<div id=\"ad-slot-desktop-ver-3\" data-orientation=\"ver\" data-index=\"3\" data-slot=\"ad-slot\" data-device=\"desktop\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<div data-hk=\"0000a124212000a23180\" class=\"Html-Block\" data-qa-article-content-text data-text-milestone-block>\n<p>Le processus d\u00e9crit par Johnson lui-m\u00eame est correct\u00a0:<\/p>\n<\/div>\n<div data-hk=\"0000a124212000a23190\" class=\"Html-Block\" data-qa-article-content-text data-text-milestone-block>\n<ol>\n<li>Du sang lui a \u00e9t\u00e9 pr\u00e9lev\u00e9.<\/li>\n<li>Des cellules somatiques ont \u00e9t\u00e9 isol\u00e9es du sang.<\/li>\n<li>Ces cellules ont \u00e9t\u00e9 trait\u00e9es avec ce que l&rsquo;on appelle les facteurs Yamanaka &#8211; une combinaison de quatre prot\u00e9ines (Oct4, Sox2, Klf4 et c-Myc) qui peuvent ramener les cellules matures du corps \u00e0 un \u00e9tat embryonnaire.<\/li>\n<li>Le r\u00e9sultat : des cellules qui se comportent de mani\u00e8re similaire aux cellules souches embryonnaires, c&rsquo;est-\u00e0-dire comme des cellules \u00e0 un stade tr\u00e8s pr\u00e9coce de d\u00e9veloppement. De telles cellules dites pluripotentes peuvent th\u00e9oriquement se d\u00e9velopper en presque tous les types de cellules du corps, comme les cellules du muscle cardiaque ou les cellules r\u00e9tiniennes.<\/li>\n<\/ol>\n<p>Cette proc\u00e9dure a \u00e9t\u00e9 d\u00e9velopp\u00e9e par le chercheur japonais Shin&rsquo;ya Yamanaka, qui a re\u00e7u le prix Nobel de m\u00e9decine en 2012. Il s&rsquo;agit d&rsquo;une technique de laboratoire \u00e9tablie et couramment utilis\u00e9e dans les laboratoires de recherche du monde entier. Il n\u2019y a donc pas de \u00ab b\u00e9b\u00e9 Bryan \u00bb dans la bo\u00eete de P\u00e9tri, mais plut\u00f4t une collection de cellules souches reprogramm\u00e9es.<\/p>\n<\/div>\n<aside data-hk=\"0000a124212000a231a10004\" data-qa-ad-slot class=\"Ad-Slot Ad-Slot-mobile Ad-Slot-hor\">\n<div id=\"ad-slot-mobile-hor-3\" data-orientation=\"hor\" data-index=\"3\" data-slot=\"ad-slot\" data-device=\"mobile\"><\/div>\n<\/aside>\n<div data-hk=\"0000a124212000a231a110\" class=\"Html-Block\" data-qa-article-content-text data-text-milestone-block>\n<h2>Les cellules iPSC font l\u2019objet de recherches<\/h2>\n<p>Comme Johnson l&rsquo;\u00e9crit \u00e0 juste titre dans son article, les chercheurs testent des th\u00e9rapies cellulaires iPS pour, par exemple, la maladie de Parkinson, certaines maladies cardiaques et la vision. En fait, de nombreux essais cliniques sont en cours avec des th\u00e9rapies bas\u00e9es sur les iPSC.<\/p>\n<\/div>\n<div data-hk=\"0000a124212000a231a120\" class=\"Html-Block\" data-qa-article-content-text data-text-milestone-block>\n<p>La recherche sur la maladie de Parkinson est la plus avanc\u00e9e : \u00e0 l&rsquo;Universit\u00e9 de Kyoto, quatre patients sur six ont montr\u00e9 des am\u00e9liorations motrices significatives apr\u00e8s une greffe de cellules nerveuses iPSC. Les cellules r\u00e9tiniennes iPSC sont \u00e9galement d\u00e9j\u00e0 test\u00e9es dans des \u00e9tudes visant \u00e0 traiter la d\u00e9g\u00e9n\u00e9rescence maculaire li\u00e9e \u00e0 l&rsquo;\u00e2ge, une maladie oculaire.<\/p>\n<\/div>\n<aside data-hk=\"0000a124212000a231a13004\" data-qa-ad-slot class=\"Ad-Slot Ad-Slot-mobile Ad-Slot-hor\">\n<div id=\"ad-slot-mobile-hor-4\" data-orientation=\"hor\" data-index=\"4\" data-slot=\"ad-slot\" data-device=\"mobile\"><\/div>\n<\/aside>\n<aside data-hk=\"0000a124212000a231a14004\" data-qa-ad-slot class=\"Ad-Slot Ad-Slot-desktop Ad-Slot-hor Ad-Slot-FC\">\n<div class=\"Ad-Slot-FC-Container\">\n<div class=\"Ad-Slot-FC-Window\">\n<div id=\"ad-slot-desktop-hor-2\" data-orientation=\"hor\" data-index=\"2\" data-slot=\"ad-slot\" data-device=\"desktop\"><\/div>\n<\/div>\n<\/div>\n<\/aside>\n<div data-hk=\"0000a124212000a231a150\" class=\"Html-Block\" data-qa-article-content-text data-text-milestone-block>\n<p>Ce qu&rsquo;il n&rsquo;\u00e9crit pas : M\u00eame dans ces \u00e9tudes les plus avanc\u00e9es, la plupart des th\u00e9rapies iPSC n&rsquo;en sont qu&rsquo;\u00e0 leurs premi\u00e8res phases cliniques. Cela signifie : la s\u00e9curit\u00e9 est encore en cours de test, la preuve de l&rsquo;efficacit\u00e9 est toujours en attente.<\/p>\n<\/div>\n<div data-hk=\"0000a124212000a231a160\" class=\"Html-Block\" data-qa-article-content-text data-text-milestone-block>\n<p>Dans son article, Johnson ne fait \u00e9galement aucune mention des risques li\u00e9s \u00e0 la technologie. C\u2019est la principale raison pour laquelle les th\u00e9rapies iPSC ne sont pas encore largement disponibles malgr\u00e9 pr\u00e8s de 20 ans de recherche. Lorsque les cellules sont reprogramm\u00e9es, des erreurs peuvent survenir dans le mat\u00e9riel g\u00e9n\u00e9tique, ce qui, dans le pire des cas, peut conduire \u00e0 une croissance cellulaire incontr\u00f4l\u00e9e, c&rsquo;est-\u00e0-dire au cancer. Cependant, les proc\u00e9d\u00e9s de fabrication modernes ont consid\u00e9rablement r\u00e9duit ce risque.<\/p>\n<\/div>\n<aside data-hk=\"0000a124212000a231a17004\" data-qa-ad-slot class=\"Ad-Slot Ad-Slot-mobile Ad-Slot-hor\">\n<div id=\"ad-slot-mobile-hor-5\" data-orientation=\"hor\" data-index=\"5\" data-slot=\"ad-slot\" data-device=\"mobile\"><\/div>\n<\/aside>\n<div data-hk=\"0000a124212000a231a180\" class=\"Html-Block\" data-qa-article-content-text data-text-milestone-block>\n<h2>Ce que Johnson envisage r\u00e9ellement de faire<\/h2>\n<p>Dans son message, Johnson d\u00e9crit \u00e9galement ce qu&rsquo;il envisage de faire avec les cellules. Y compris, par exemple :<\/p>\n<\/div>\n<div data-hk=\"0000a124212000a231a190\" class=\"Html-Block\" data-qa-article-content-text data-text-milestone-block>\n<ul>\n<li>\ufeff\ufeffTestez des th\u00e9rapies en laboratoire sans solliciter votre propre corps<\/li>\n<li>Cultivez des cellules qui pourraient remplacer les tissus endommag\u00e9s<\/li>\n<li>\u00c0 long terme, m\u00eame cultiver des organes destin\u00e9s \u00e0 la transplantation<\/li>\n<\/ul>\n<p>Johnson \u00e9crit litt\u00e9ralement qu\u2019il peut \u00ab l\u2019utiliser pour faire pousser des organes et r\u00e9parer mon corps, organe par organe \u00bb. C&rsquo;est grandement exag\u00e9r\u00e9. Les iPSC peuvent d\u00e9j\u00e0 \u00eatre converties en diff\u00e9rents types de cellules en laboratoire. Cependant, dans l\u2019\u00e9tat actuel des recherches, il n\u2019est pas possible d\u2019en faire pousser un organe complet et fonctionnel. Il reste encore des d\u00e9cennies de recherche \u00e0 mener entre des cellules individuelles dans une bo\u00eete de P\u00e9tri et un organe transplantable \u2013 si cela devient m\u00eame possible.<\/p>\n<\/div>\n<aside data-hk=\"0000a124212000a231a20004\" data-qa-ad-slot class=\"Ad-Slot Ad-Slot-mobile Ad-Slot-hor\">\n<div id=\"ad-slot-mobile-hor-6\" data-orientation=\"hor\" data-index=\"6\" data-slot=\"ad-slot\" data-device=\"mobile\"><\/div>\n<\/aside>\n<div data-hk=\"0000a124212000a231a210\" class=\"Html-Block\" data-qa-article-content-text data-text-milestone-block>\n<p>Johnson affirme \u00e9galement : \u00ab Cette technologie nous donne un moyen d\u2019inverser le vieillissement. \u00bb Il s\u2019agit davantage d\u2019une vision que d\u2019une science \u00e9prouv\u00e9e. La r\u00e9initialisation de l\u2019\u00e2ge des cellules en laboratoire fonctionne r\u00e9ellement, ce qui est au c\u0153ur de la m\u00e9thode Yamanaka. Que cela puisse inverser le vieillissement de tout un corps humain est une question compl\u00e8tement diff\u00e9rente \u00e0 laquelle personne n\u2019a encore \u00e9t\u00e9 en mesure de r\u00e9pondre.<\/p>\n<\/div>\n<div data-hk=\"0000a124212000a231a220\" class=\"Article-ReusableText Html-Block\" data-qa-article-reusable-content-text><!--$--><!--\/--><!--$--><!--\/--><\/p>\n<div>\n<h2>Comment configurer FOCUS en ligne comme source pr\u00e9f\u00e9r\u00e9e sur Google<\/h2>\n<p>Souhaitez-vous ajouter FOCUS en ligne comme source pr\u00e9f\u00e9r\u00e9e sur Google\u00a0? Un compte Google est requis pour ce param\u00e8tre. Le param\u00e9trage lui-m\u00eame ne n\u00e9cessite que quelques clics. Ce lien direct vous m\u00e8nera aux param\u00e8tres source de votre compte Google. Nous avons d\u00e9j\u00e0 s\u00e9lectionn\u00e9 FOCUS en ligne pour vous ici &#8211; il vous suffit de cocher la case vous-m\u00eame.<\/p>\n<\/div>\n<\/div>\n<p><!--\/--><br \/>\n<!--$--><br \/>\n<!--\/--><br \/>\n<!--$--><br \/>\n<!--\/--><br \/>\n<!--$--><br \/>\n<!--\/--><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Cela fait moins de quatre semaines que le millionnaire de la technologie et gourou de<\/p>\n","protected":false},"author":1,"featured_media":18441,"comment_status":"open","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[86],"tags":[10412,10414,3356,10415,10413,535],"class_list":["post-18440","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-les-maladies","tag-bryan","tag-clone","tag-encore","tag-exagere","tag-johnson","tag-sest","generate-columns","tablet-grid-50","mobile-grid-100","grid-parent","grid-50","resize-featured-image"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v23.4 - 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