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Comprehensive Epigenomic Analysis Reveals Dynamic Regulatory Programs Of Blood Development (ChIP-seq)

ABSTRACT: Embryonic hematopoiesis is regulated by the coordinated interaction between transcription factors and the epigenetic regulators driving developmental-stage specific gene expression but how this process drives hematopoietic specification and terminal differentiation is poorly understood. Here we generated RNA-Seq, DNase-Seq and ChIP-Seq data for histone marks and transcription factors from ES-cell derived purified cells representing six sequential stages of blood cell specification and differentiation. Our data reveal the binding patterns of specific transcription factors involved in the priming and maintenance of distal elements and inform how binding impacts on promoter activity. Functional studies based on these data uncovered a previously unrecognised role for Hippo signalling in mammalian hematopoietic specification. Finally, we present a dynamic core regulatory network model for hematopoiesis and demonstrate its utility for the design of reprogramming experiments. Our study represents a powerful resource for studying hematopoiesis and demonstrates how such data can advance our understanding of mammalian development.

ORGANISM(S): Mus musculus

PROVIDER: GSE69096 | GEO | 2016/02/26

SECONDARY ACCESSION(S): PRJNA284527

REPOSITORIES: GEO

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Project description:Collombet2016 - Lymphoid and myeloid cell specification and transdifferentiation This model is described in the article: Logical modeling of lymphoid and myeloid cell specification and transdifferentiation Samuel Collombet, Chris van Oevelen, Jose Luis Sardina Ortega, Wassim Abou-Jaoudé, Bruno Di Stefano, Morgane Thomas-Chollier, Thomas Graf, and Denis Thieffry Proceedings of the National Academy of Sciences of the United States of America Abstract: Blood cells are derived from a common set of hematopoietic stem cells, which differentiate into more specific progenitors of the myeloid and lymphoid lineages, ultimately leading to differentiated cells. This developmental process is controlled by a complex regulatory network involving cytokines and their receptors, transcription factors, and chromatin remodelers. Using public data and data from our own molecular genetic experiments (quantitative PCR, Western blot, EMSA) or genome-wide assays (RNA-sequencing, ChIP-sequencing), we have assembled a comprehensive regulatory network encompassing the main transcription factors and signaling components involved in myeloid and lymphoid development. Focusing on B-cell and macrophage development, we defined a qualitative dynamical model recapitulating cytokine-induced differentiation of common progenitors, the effect of various reported gene knockdowns, and the reprogramming of pre-B cells into macrophages induced by the ectopic expression of specific transcription factors. The resulting network model can be used as a template for the integration of new hematopoietic differentiation and transdifferentiation data to foster our understanding of lymphoid/myeloid cell-fate decisions. This model is hosted on BioModels Database and identified by: MODEL1610240000. To cite BioModels Database, please use: BioModels Database: An enhanced, curated and annotated resource for published quantitative kinetic models. To the extent possible under law, all copyright and related or neighbouring rights to this encoded model have been dedicated to the public domain worldwide. Please refer to CC0 Public Domain Dedication for more information.

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Comprehensive Epigenomic Analysis Reveals Dynamic Regulatory Programs Of Blood Development (ChIP-seq)

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