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Scientific Fields
Diseases
Organisms
Applications
Technique

Published in Comptes rendus biologies - 23 Jul 2025

Thetiot M, Cossart P, Bally-Cuif L

Link to Pubmed [PMID] – 40698845

Link to DOI – 10.5802/crbiol.185

C R Biol 2025 Jul; 348(): 159-166

Organoids and embryoids are self-organizing 3D cellular models derived from human pluripotent stem cells or dissociated stem cells from primary tissue, able of partially mimicking the development and function of tissues, organs, or embryos in vitro. Research using these models is advancing rapidly, starting to overcome challenges in studying human development, evolution, and disease. The conference from the French Académie des Sciences “Mini-organs and early embryos in vitro: what is at stake?” illustrated the promise of organoids and embryoids in basic and translational research. The lectures emphasized recent biomedical applications, particularly in disease modeling, drug discovery, and regenerative medicine. Current challenges and future directions have also been discussed alongside with the ethical implications of generating functional structures from human cells in vitro.Les organoïdes et les embryoïdes sont des modèles cellulaires tridimensionnels issus de cellules souches humaines, capables de reproduire partiellement, in vitro, le développement et le fonctionnement de tissus, d’organes ou d’embryons. La recherche utilisant ces modèles progresse rapidement et commence à surmonter les obstacles liés à l’étude du développement, de l’évolution et des maladies humaines. La conférence de l’Académie des Sciences intitulée «  Mini-organes et embryons précoces in vitro : quels enjeux ? » a illustré le potentiel des organoïdes et des embryoïdes dans la recherche fondamentale et translationnelle. Les présentations ont mis en avant des applications biomédicales récentes, notamment dans la modélisation des maladies, la découverte de thérapies et la médecine régénérative. Les défis actuels et les perspectives futures ont également été abordés, de même que les implications éthiques liées à la génération, in vitro, de structures fonctionnelles à partir de cellules humaines.