The emergence of discrete cell identities from undifferentiated precursor cells is a central process in development and tissue homeostasis and repair, that when defective is at the basis of many human conditions including cancer and aging. The goal of our research is to provide a better understanding of the regulations operating at the levels of both intrinsic programs and extrinsic cues to ensure acquisition and maintenance of cell identities in an in vivo context. We are using as a model of choice the mouse preimplantation embryo, for which in vivo cell fate decisions can be scrutinized with high spatiotemporal resolution thus allowing to probe how dynamic changes in spatial cues and gene expression program are resolved into distinct cell identities in the intact embryo. In mammals, placental viviparity imposes on embryo development to begin with the generation of extraembryonic lineages required to interact with the maternal tissues, namely trophectoderm (TE) and primitive endoderm (PrE), while preserving a small population of pluripotent epiblast (Epi) cells from which the embryo proper originates. Understanding how these three lineages are produced in the proportion and arrangement appropriate for post-implantation development to proceed is of paramount importance in the context of the continuous decline of human fertility and increasing use of medically assisted reproductive technologies.
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Mouse Genetics Course
This five-week intensive laboratory and lecture course covers the analysis of gene function at all levels: the gene and its product, the cell and its interactions, the embryonic tissues and the entire animal. […]
2024-01-08 09:00:00
2024-02-13 18:00:00
Europe/Paris
Mouse Genetics Course
This five-week intensive laboratory and lecture course covers the analysis of gene function at all levels: the gene and its product, the cell and its interactions, the embryonic tissues and the entire animal. […]
Institut Pasteur, Rue du Docteur Roux, Paris, France
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2022H3K9 tri-methylation at Nanog times differentiation commitment and enables the acquisition of primitive endoderm fate., Development 2022 Sep; 149(17): .
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2022OCT4 activates a Suv39h1-repressive antisense lncRNA to couple histone H3 Lysine 9 methylation to pluripotency., Nucleic Acids Res 2022 07; 50(13): 7367-7379.
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2022NANOG initiates epiblast fate through the coordination of pluripotency genes expression., Nat Commun 2022 Jun; 13(1): 3550.
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2021Microfabricated Device for High-Resolution Imaging of Preimplantation Embryos., Methods Mol. Biol. 2021 ; 2214(): 11-30.
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2020Fast In Vitro Procedure to Identify Extraembryonic Differentiation Defect of Mouse Embryonic Stem Cells., STAR Protoc 2020 Dec; 1(3): 100127.
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2020Direct Readout of Neural Stem Cell Transgenesis with an Integration-Coupled Gene Expression Switch., Neuron 2020 Jun; (): .
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2020Compensation between Wnt-driven tumorigenesis and cellular responses to ribosome biogenesis inhibition in the murine intestinal epithelium, Cell Death Differ. 2020 Apr;.
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2019CTCF confers local nucleosome resiliency after DNA replication and during mitosis, Elife 2019 Oct;8.
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2019PDGF signaling in primitive endoderm cell survival is mediated by PI3K-mTOR through p53-independent mechanism, Stem Cells 2019 Mar;.
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2019Transcription factor activity and nucleosome organization in mitosis., Genome Res 2019 02; 29(2): 250-260.
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