{"id":326,"date":"2022-08-24T10:22:17","date_gmt":"2022-08-24T08:22:17","guid":{"rendered":"http:\/\/ivangavriloff.com\/?p=326"},"modified":"2022-08-24T10:22:17","modified_gmt":"2022-08-24T08:22:17","slug":"piece-14","status":"publish","type":"post","link":"https:\/\/ivangavriloff.com\/index.php\/2022\/08\/24\/piece-14\/","title":{"rendered":"Pi\u00e8ce #14"},"content":{"rendered":"\n<h4 class=\"wp-block-heading\"><a>L&rsquo;impression 3D d&rsquo;organes humains bient\u00f4t possible ?<\/a><\/h4>\n\n\n\n<p><em>\u2013 Le Monde 2014 \u2013<\/em><\/p>\n\n\n\n<p>Et si demain nous pouvions imprimer en 3D nos organes sur commande&nbsp;? Pitch d&rsquo;un film de science-fiction ou projet fou de scientifiques devenant r\u00e9alit\u00e9&nbsp;? Incroyable mais vrai, l&rsquo;homme de demain pourra vivre avec des organes fabriqu\u00e9s de toutes pi\u00e8ces gr\u00e2ce \u00e0 des imprimantes 3D comme le d\u00e9montre cet article. Alors que l&rsquo;impression 3D biologique avance \u00e0 grand pas, sera-t-il bient\u00f4t possible d&rsquo;imprimer un corps humain en 3D&nbsp;? Rhiannon Williams m\u00e8ne l&rsquo;enqu\u00eate.<\/p>\n\n\n\n<p>Le \u201cbioprint\u201c est le proc\u00e9d\u00e9 de cr\u00e9er des tissus humains par le biais d&rsquo;imprimantes 3d. D&rsquo;un point de vue technologique, l&rsquo;ascension et le d\u00e9veloppement de l&rsquo;impression 3d et ses capacit\u00e9s joueront un r\u00f4le ind\u00e9niable dans notre futur. Mais comment \u00e7a fonctionne&nbsp;?<\/p>\n\n\n\n<p>La soci\u00e9t\u00e9 PrinterInks bas\u00e9e en Grande-Bretagne a fait \u00e9quipe avec la startup am\u00e9ricaine Organovo, une soci\u00e9t\u00e9 sp\u00e9cialis\u00e9e dans la conception et l&rsquo;impression de tissus humains fonctionnels pour la recherche m\u00e9dicale et les applications th\u00e9rapeutiques.<\/p>\n\n\n\n<p>Les tissus humains imprim\u00e9s en 3d sont cr\u00e9\u00e9s \u00e0 l&rsquo;aide de cartouches d&rsquo;imprimante compos\u00e9es de cellules provenant de biopsies de patients ou de cellules souches. Les cellules pr\u00e9lev\u00e9es sont cultiv\u00e9es dans un milieu de croissance selon des techniques standard, ce qui leur permet de se multiplier.<\/p>\n\n\n\n<p>Une fois que suffisamment de cellules ont grandi, elles sont recueillies et charg\u00e9es dans une cartouche pour cr\u00e9er le \u201cBioInk\u201c ou encre biologique.<\/p>\n\n\n\n<p>Ensuite, l&rsquo;encre biologique est charg\u00e9e dans une imprimante Novogen MMX avec une cartouche d&rsquo;hydrogel, une sorte de m\u00e9lange d&rsquo;eau, utilis\u00e9e comme une sorte d&rsquo;\u00e9chafaudage pour la construction de couches de cellules 3D. La machine 3D imprime une couche de gel \u00e0 base d&rsquo;eau, suivie d&rsquo;une couche de cellules d&rsquo;encre biologique, et ainsi de suite. Les deux couches fusionnent naturellement entre elles et ainsi de suite.<\/p>\n\n\n\n<p>Une fois que la quantit\u00e9 de couches souhait\u00e9e est imprim\u00e9e, on laisse le tissu imprim\u00e9 reposer et se d\u00e9velopper. Puis on enl\u00e8ve l&rsquo;hydrogel. D&rsquo;autres chercheurs ont exp\u00e9riment\u00e9 le bioprint avec succ\u00e8s en utilisant un sucre et une solution d&rsquo;eau comme \u00e9chafaudage pour les structures.<\/p>\n\n\n\n<p>Les tissus imprim\u00e9s actuellement sont g\u00e9n\u00e9ralement utilis\u00e9s dans la recherche m\u00e9dicale. Pour les tester, on introduit des maladies afin de surveiller la fa\u00e7on dont le tissu r\u00e9agit pour d\u00e9velopper des traitements futurs. Dans l&rsquo;avenir, il est tr\u00e8s probable que les imprimantes 3D seront utilis\u00e9es pour cr\u00e9er des tissus pour les implanter dans les organes actuels. L&rsquo;impression d&rsquo;organes entiers, si elle est approuv\u00e9e, pourrait \u00eatre une r\u00e9alit\u00e9 dans la prochaine d\u00e9cennie.<\/p>\n\n\n\n<p>Organovo a r\u00e9cemment \u201cbioprint\u00e9\u201c ou bio-imprim\u00e9, \u00e0 des fins de test, son premier tissu du foie en 3D. En 2010, la soci\u00e9t\u00e9 a \u00e9galement imprim\u00e9 le premier vaisseau de sang humain sans l&rsquo;utilisation d&rsquo;\u201c\u00e9chafaudages\u201c.<\/p>\n\n\n\n<p>Les chercheurs estiment qu&rsquo;actuellement il faudrait 10 jours pour imprimer un foie et un lobe d&rsquo;oreille de taille moyenne, mais ils estiment que la rapidit\u00e9 et l&rsquo;efficacit\u00e9 avec laquelle ils pourraient cr\u00e9er de telles structures tissulaires vont grandement progresser \u00e0 l&rsquo;avenir. Apr\u00e8s tout, il faudrait 1.690.912.929.600 heures pour imprimer un foie pour chaque membre de la race humaine \u00e0 l&rsquo;aide du processus actuel.<\/p>\n\n\n\n<p>Dans le m\u00eame temps, Organovo pr\u00e9voit de commercialiser et de lancer son tissu de foie 3D pour les soci\u00e9t\u00e9s pharmaceutiques et les laboratoires de recherche d&rsquo;ici le mois de d\u00e9cembre.<\/p>\n\n\n\n<p>En ao\u00fbt 2013, l&rsquo;universit\u00e9 Hangzhou Dianzi en Chine a annonc\u00e9 avoir cr\u00e9\u00e9 une nouvelle l&rsquo;imprimante 3D \u201cbiomat\u00e9rielle\u201c, qui a imprim\u00e9 un petit rein ces quatre derniers mois. Plus t\u00f4t en 2013, aux Etats- Unis, une enfant de deux ans a re\u00e7u une trach\u00e9e construite \u00e0 partir de ces propres cellules souches.<\/p>\n\n\n\n<p>L&rsquo;universit\u00e9 de Princetown a imprim\u00e9 une \u201coreille bionique\u201c en utilisant une imprimante \u00e0 \u00ab jet d&rsquo;encre biologique \u00bb. Sur le plan de l&rsquo;\u00e9thique et de la morale, des chercheurs ont manifest\u00e9 leur inqui\u00e9tude en ce qui concerne la qualit\u00e9 des organes et le contr\u00f4le de leur production. D&rsquo;autres soutiennent que l&rsquo;impression 3D de composants humains brouille les lignes entre l&rsquo;homme et la machine, leur procurant le droit de \u201cjouer \u00e0 Dieu\u201c sur une \u00e9chelle sans pr\u00e9c\u00e9dent. Mais quoi que l&rsquo;on en pense, on ne peut nier le fait que le \u201cbioprint\u201c a le potentiel pour r\u00e9volutionner la m\u00e9decine et les services de soins au-del\u00e0 de ce qui semblait possible il y a encore 20 ans.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>L&rsquo;impression 3D d&rsquo;organes humains bient\u00f4t possible ? \u2013 Le Monde 2014 \u2013 Et si demain nous pouvions imprimer en 3D nos organes sur commande&nbsp;? Pitch d&rsquo;un film de science-fiction ou projet fou de scientifiques devenant r\u00e9alit\u00e9&nbsp;? Incroyable mais vrai, l&rsquo;homme de demain pourra vivre avec des organes fabriqu\u00e9s de toutes pi\u00e8ces gr\u00e2ce \u00e0 des imprimantes&hellip;&nbsp;<a href=\"https:\/\/ivangavriloff.com\/index.php\/2022\/08\/24\/piece-14\/\" class=\"\" rel=\"bookmark\">Lire la suite &raquo;<span class=\"screen-reader-text\">Pi\u00e8ce #14<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"neve_meta_sidebar":"","neve_meta_container":"","neve_meta_enable_content_width":"","neve_meta_content_width":0,"neve_meta_title_alignment":"","neve_meta_author_avatar":"","neve_post_elements_order":"","neve_meta_disable_header":"","neve_meta_disable_footer":"","neve_meta_disable_title":"","footnotes":""},"categories":[1],"tags":[],"class_list":["post-326","post","type-post","status-publish","format-standard","hentry","category-non-classe"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.7 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Pi\u00e8ce #14 - Ivan Gavriloff<\/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:\/\/ivangavriloff.com\/index.php\/2022\/08\/24\/piece-14\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Pi\u00e8ce #14 - Ivan Gavriloff\" \/>\n<meta property=\"og:description\" content=\"L&rsquo;impression 3D d&rsquo;organes humains bient\u00f4t possible ? \u2013 Le Monde 2014 \u2013 Et si demain nous pouvions imprimer en 3D nos organes sur commande&nbsp;? 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