{"id":348,"date":"2025-05-27T12:03:09","date_gmt":"2025-05-27T12:03:09","guid":{"rendered":"https:\/\/blog.adlington.fr\/index.php\/2025\/05\/27\/des-lage-de-50-ans-les-cellules-de-notre-sang-sappauvrissent\/"},"modified":"2025-05-27T12:03:09","modified_gmt":"2025-05-27T12:03:09","slug":"des-lage-de-50-ans-les-cellules-de-notre-sang-sappauvrissent","status":"publish","type":"post","link":"https:\/\/blog.adlington.fr\/index.php\/2025\/05\/27\/des-lage-de-50-ans-les-cellules-de-notre-sang-sappauvrissent\/","title":{"rendered":"D\u00e8s l\u2019\u00e2ge de 50\u00a0ans, les cellules de notre sang s\u2019appauvrissent"},"content":{"rendered":"<blockquote><p>Avec l\u2019\u00e2ge, chez l\u2019\u00eatre humain comme chez la souris, quelques cellules souches se mettent \u00e0 prolif\u00e9rer de fa\u00e7on massive, \u00e9crasant la concurrence en produisant des myriades de cellules identiques. Quelques clones prennent ainsi progressivement le contr\u00f4le de la production sanguine \u2013 on parle d\u2019\u00ab&nbsp;expansion clonale&nbsp;\u00bb. Qui plus est, ils produisent de pr\u00e9f\u00e9rence des cellules my\u00e9lo\u00efdes, c\u2019est-\u00e0-dire des cellules immunitaires qui g\u00e9n\u00e8rent une inflammation chronique persistante. Or celle-ci est associ\u00e9e \u00e0 une vuln\u00e9rabilit\u00e9 accrue \u00e0 certaines maladies.<br \/>\n\u2014 Read on <a href=\"https:\/\/www.lemonde.fr\/sciences\/article\/2025\/05\/27\/des-l-age-de-50-ans-les-cellules-de-notre-sang-s-appauvrissent_6608800_1650684.html\">www.lemonde.fr\/sciences\/article\/2025\/05\/27\/des-l-age-de-50-ans-les-cellules-de-notre-sang-s-appauvrissent_6608800_1650684.html<\/a><\/p>\n<\/blockquote>\n","protected":false},"excerpt":{"rendered":"<p>Avec l\u2019\u00e2ge, chez l\u2019\u00eatre humain comme chez la souris, quelques cellules souches se mettent \u00e0 prolif\u00e9rer de fa\u00e7on massive, \u00e9crasant la concurrence en produisant des myriades de cellules identiques. Quelques clones prennent ainsi progressivement le contr\u00f4le de la production sanguine \u2013 on parle d\u2019\u00ab&nbsp;expansion clonale&nbsp;\u00bb. Qui plus est, ils produisent de pr\u00e9f\u00e9rence des cellules my\u00e9lo\u00efdes, [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[1],"tags":[],"class_list":["post-348","post","type-post","status-publish","format-standard","hentry","category-blog"],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/blog.adlington.fr\/index.php\/wp-json\/wp\/v2\/posts\/348","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.adlington.fr\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.adlington.fr\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.adlington.fr\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.adlington.fr\/index.php\/wp-json\/wp\/v2\/comments?post=348"}],"version-history":[{"count":0,"href":"https:\/\/blog.adlington.fr\/index.php\/wp-json\/wp\/v2\/posts\/348\/revisions"}],"wp:attachment":[{"href":"https:\/\/blog.adlington.fr\/index.php\/wp-json\/wp\/v2\/media?parent=348"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.adlington.fr\/index.php\/wp-json\/wp\/v2\/categories?post=348"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.adlington.fr\/index.php\/wp-json\/wp\/v2\/tags?post=348"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}