The molecular basis of specific functions of Brachyury and Eomes for mesoderm and endoderm lineage specification
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PROVIDER: PRJNA799386 | ENA |
REPOSITORIES: ENA
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Project description:The Tbx factors Eomesodermin (Eomes) and Brachyury instruct endoderm and mesoderm specification. Both Tbx factors have common large overlap in chromatin binding sites, however their embryonic phenotypes of mutants largely differ. In this study, we delineate the distinct binding patterns and gene target sets of Eomes and Brachyury providing a molecular model of distinct fate specification programs.
2023-07-26 | GSE194192 | GEO
Project description:The transcription factor BRACHYURY (T, BRA) is one of the first markers of gastrulation and lineage specification in mammals. Despite its wide use and importance in stem cell and developmental biology, its genomic targets are largely unknown. Here, we used differentiated human embryonic stem cells to study the role of BRA in Bmp4-induced mesoderm and Activin-induced endoderm progenitors by ChIP-seq. We show that BRA has distinct genome-wide binding landscapes in these two populations. Our data illuminate the function of BRA in the context of human embryonic development and show that the regulatory role of BRA is context-dependent. ChIP-seq of BRACHYURY (T, BRA) in two cell types: endoderm and mesoderm progenitors derived from human embryonic stem cells after 36 hours of growth in chemically-defined media (described in Bernardo et al., Cell Stem Cell, 2011, 9:144-155). Input DNA samples are included as a control.
2015-05-18 | E-GEOD-60606 | biostudies-arrayexpress
Project description:We aimed to elucidate molecular mechanisms of first lineage decision in the mouse pluripotent epiblast that segregates mesoderm and endoderm (ME) from neuroectoderm (NE). By analyzing mouse embryonic stem cells (ESCs) and embryos deficient for two T-box (Tbx) transcription factors Eomes and Brachyury we demonstrate that this process is controlled by the changes in the chromatin accessibility of ME gene enhancers and activation of the target genes, but also direct repression the opposing pluripotency and NE gene programs.
2019-12-02 | GSE128466 | GEO
Project description:Precisely co-ordinated activation of lineage specific transcription factors direct cell fate decisions during mouse early development. The T-box transcription factor Eomes is dynamically expressed during mouse gastrulation and is a key regulator of the anterior visceral endoderm (AVE), cardiac mesoderm and definitive endoderm (DE) lineages. The cis-acting regulatory elements that direct spatiotemporally restricted Eomes expression domains have yet to be elucidated. To understand transcriptional regulation of Eomes in Definitive Endoderm open chromatin data was generated by ATAC-seq and histone modifications identified by ChIP-seq. Interactions at the Eomes locus and the loci of two related transcription factors Foxa2 and Lhx1, was also determined by NG Capture-C.
2017-01-30 | GSE94249 | GEO
Project description:Precisely co-ordinated activation of lineage specific transcription factors direct cell fate decisions during mouse early development. The T-box transcription factor Eomes is dynamically expressed during mouse gastrulation and is a key regulator of the anterior visceral endoderm (AVE), cardiac mesoderm and definitive endoderm (DE) lineages. The cis-acting regulatory elements that direct spatiotemporally restricted Eomes expression domains have yet to be elucidated. To understand transcriptional regulation of Eomes in Definitive Endoderm open chromatin data was generated by ATAC-seq and histone modifications identified by ChIP-seq. Interactions at the Eomes locus and the loci of two related transcription factors Foxa2 and Lhx1, was also determined by NG Capture-C.
2017-01-30 | GSE94048 | GEO
Project description:Precisely co-ordinated activation of lineage specific transcription factors direct cell fate decisions during mouse early development. The T-box transcription factor Eomes is dynamically expressed during mouse gastrulation and is a key regulator of the anterior visceral endoderm (AVE), cardiac mesoderm and definitive endoderm (DE) lineages. The cis-acting regulatory elements that direct spatiotemporally restricted Eomes expression domains have yet to be elucidated. To understand transcriptional regulation of Eomes in Definitive Endoderm open chromatin data was generated by ATAC-seq and histone modifications identified by ChIP-seq. Interactions at the Eomes locus and the loci of two related transcription factors Foxa2 and Lhx1, was also determined by NG Capture-C.
2017-01-30 | GSE94051 | GEO
Project description:In this study we analysed the dynamic changes in the epigenetic landscape during first embryonic lineage decision following pluripotency exit. Here, mouse pluripotent epiblast cells segregate towards mesoderm and endoderm (ME) or neuroectoderm (NE). The analysis of chromatin accessibility, histone modifications and accompanied gene expression confirmed a bias of the epigenetic landscape towards NE fate while ME cis regulatory elements (CREs) are becoming accessible and active during lineage specification. We show that the default state of NE differentiation is actively overcome by the activity of the Tbx transcription factor (TF) EOMES binding to closed ME CREs. We found the ATP-dependent chromatin remodelling complex SWI/SNF is recruited by EOMES to target ME enhancers. The recruitment of the complex by EOMES leads to the remodelling of the enhancer landscape at ME genes. The ME enhancer landscape is remodelled by the activity of EOMES independent on gene expression genome wide.
2024-11-08 | GSE272549 | GEO
Project description:In this study we analysed the dynamic changes in the epigenetic landscape during first embryonic lineage decision following pluripotency exit. Here, mouse pluripotent epiblast cells segregate towards mesoderm and endoderm (ME) or neuroectoderm (NE). The analysis of chromatin accessibility, histone modifications and accompanied gene expression confirmed a bias of the epigenetic landscape towards NE fate while ME cis regulatory elements (CREs) are becoming accessible and active during lineage specification. We show that the default state of NE differentiation is actively overcome by the activity of the Tbx transcription factor (TF) EOMES binding to closed ME CREs. We found the ATP-dependent chromatin remodelling complex SWI/SNF is recruited by EOMES to target ME enhancers. The recruitment of the complex by EOMES leads to the remodelling of the enhancer landscape at ME genes. The ME enhancer landscape is remodelled by the activity of EOMES independent on gene expression genome wide.
2024-11-08 | GSE272547 | GEO
Project description:In this study we analysed the dynamic changes in the epigenetic landscape during first embryonic lineage decision following pluripotency exit. Here, mouse pluripotent epiblast cells segregate towards mesoderm and endoderm (ME) or neuroectoderm (NE). The analysis of chromatin accessibility, histone modifications and accompanied gene expression confirmed a bias of the epigenetic landscape towards NE fate while ME cis regulatory elements (CREs) are becoming accessible and active during lineage specification. We show that the default state of NE differentiation is actively overcome by the activity of the Tbx transcription factor (TF) EOMES binding to closed ME CREs. We found the ATP-dependent chromatin remodelling complex SWI/SNF is recruited by EOMES to target ME enhancers. The recruitment of the complex by EOMES leads to the remodelling of the enhancer landscape at ME genes. The ME enhancer landscape is remodelled by the activity of EOMES independent on gene expression genome wide.
2024-11-08 | GSE272545 | GEO
Project description:The transcription factor BRACHYURY (T, BRA) is one of the first markers of gastrulation and lineage specification in mammals. Despite its wide use and importance in stem cell and developmental biology, its genomic targets are largely unknown. Here, we used differentiated human embryonic stem cells to study the role of BRA in Bmp4-induced mesoderm and Activin-induced endoderm progenitors by ChIP-seq. We show that BRA has distinct genome-wide binding landscapes in these two populations. Our data illuminate the function of BRA in the context of human embryonic development and show that the regulatory role of BRA is context-dependent.
2015-05-18 | GSE60606 | GEO