TY - JOUR KW - Experimental models of disease KW - Regenerative Medicine KW - Stem cells KW - Stem-cell research AU - Mattia Francesco Maria Gerli AU - Giuseppe Calà AU - Max Arran Beesley AU - Beatrice Sina AU - Lucinda Tullie AU - Kylin Yunyan Sun AU - Francesco Panariello AU - Federica Michielin AU - Joseph R. Davidson AU - Francesca Maria Russo AU - Brendan C. Jones AU - Dani Do Hyang Lee AU - Savvas Savvidis AU - Theodoros Xenakis AU - Ian C. Simcock AU - Anna A. Straatman-Iwanowska AU - Robert A. Hirst AU - Anna L. David AU - Christopher O’Callaghan AU - Alessandro Olivo AU - Simon Eaton AU - Stavros P. Loukogeorgakis AU - Davide Cacchiarelli AU - Jan Deprest AU - Vivian S. W. Li AU - Giovanni Giuseppe Giobbe AU - Paolo De Coppi AB - Isolation of tissue-specific fetal stem cells and derivation of primary organoids is limited to samples obtained from termination of pregnancies, hampering prenatal investigation of fetal development and congenital diseases. Therefore, new patient-specific in vitro models are needed. To this aim, isolation and expansion of fetal stem cells during pregnancy, without the need for tissue samples or reprogramming, would be advantageous. Amniotic fluid (AF) is a source of cells from multiple developing organs. Using single-cell analysis, we characterized the cellular identities present in human AF. We identified and isolated viable epithelial stem/progenitor cells of fetal gastrointestinal, renal and pulmonary origin. Upon culture, these cells formed clonal epithelial organoids, manifesting small intestine, kidney tubule and lung identity. AF organoids exhibit transcriptomic, protein expression and functional features of their tissue of origin. With relevance for prenatal disease modeling, we derived lung organoids from AF and tracheal fluid cells of congenital diaphragmatic hernia fetuses, recapitulating some features of the disease. AF organoids are derived in a timeline compatible with prenatal intervention, potentially allowing investigation of therapeutic tools and regenerative medicine strategies personalized to the fetus at clinically relevant developmental stages. BT - Nature Medicine DA - 2024-03-04 DO - 10.1038/s41591-024-02807-z LA - en N2 - Isolation of tissue-specific fetal stem cells and derivation of primary organoids is limited to samples obtained from termination of pregnancies, hampering prenatal investigation of fetal development and congenital diseases. Therefore, new patient-specific in vitro models are needed. To this aim, isolation and expansion of fetal stem cells during pregnancy, without the need for tissue samples or reprogramming, would be advantageous. Amniotic fluid (AF) is a source of cells from multiple developing organs. Using single-cell analysis, we characterized the cellular identities present in human AF. We identified and isolated viable epithelial stem/progenitor cells of fetal gastrointestinal, renal and pulmonary origin. Upon culture, these cells formed clonal epithelial organoids, manifesting small intestine, kidney tubule and lung identity. AF organoids exhibit transcriptomic, protein expression and functional features of their tissue of origin. With relevance for prenatal disease modeling, we derived lung organoids from AF and tracheal fluid cells of congenital diaphragmatic hernia fetuses, recapitulating some features of the disease. AF organoids are derived in a timeline compatible with prenatal intervention, potentially allowing investigation of therapeutic tools and regenerative medicine strategies personalized to the fetus at clinically relevant developmental stages. PY - 2024 SP - 1 EP - 13 T2 - Nature Medicine TI - Single-cell guided prenatal derivation of primary fetal epithelial organoids from human amniotic and tracheal fluids UR - https://www.nature.com/articles/s41591-024-02807-z Y2 - 2024-03-05 SN - 1546-170X ER -