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Control of developmentally poised erythroid genes by combinatorial corepressor actions

ABSTRACT: Control of developmentally poised erythroid genes by combinatorial corepressor actions

OTHER RELATED OMICS DATASETS IN: PRJNA256961

INSTRUMENT(S):

ORGANISM(S): Mus Musculus (mouse)

TISSUE(S): Erythroid Lineage Cell

DISEASE(S): Acute Leukemia

SUBMITTER: Jeroen Demmers

LAB HEAD: Jeroen Demmers

PROVIDER: PXD001892 | Pride | 2015-11-19

REPOSITORIES: Pride

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			Action	DRS
	1016_EricSoler_01.RAW	Raw
	1016_EricSoler_02.RAW	Raw
	1016_EricSoler_03.RAW	Raw
	1016_EricSoler_04.RAW	Raw
	1016_EricSoler_05.RAW	Raw

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Publications

Control of developmentally primed erythroid genes by combinatorial co-repressor actions.

Stadhouders Ralph R Cico Alba A Stephen Tharshana T Thongjuea Supat S Kolovos Petros P Baymaz H Irem HI Yu Xiao X Demmers Jeroen J Bezstarosti Karel K Maas Alex A Barroca Vilma V Kockx Christel C Ozgur Zeliha Z van Ijcken Wilfred W Arcangeli Marie-Laure ML Andrieu-Soler Charlotte C Lenhard Boris B Grosveld Frank F Soler Eric E

Nature communications 20151123

How transcription factors (TFs) cooperate within large protein complexes to allow rapid modulation of gene expression during development is still largely unknown. Here we show that the key haematopoietic LIM-domain-binding protein-1 (LDB1) TF complex contains several activator and repressor components that together maintain an erythroid-specific gene expression programme primed for rapid activation until differentiation is induced. A combination of proteomics, functional genomics and in vivo stu ...[more]

PMID: 26593974

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Mus musculus

Project description:Control of developmentally primed erythroid genes by combinatorial corepressor actions

| PRJNA256961 | ENA

Control of developmentally primed erythroid genes by combinatorial corepressor actions

Project description:How transcription factors (TFs) cooperate within large protein complexes to allow rapid modulation of gene expression during development is still largely unknown. Here we show that the key haematopoietic LIM-domain-binding protein-1 (LDB1) TF complex contains several activator and repressor components that together maintain an erythroid-specific gene expression programme primed for rapid activation until differentiation is induced. A combination of proteomics, functional genomics and in vivo studies presented here identifies known and novel co-repressors, most notably the ETO2 and IRF2BP2 proteins, involved in maintaining this primed state. The ETO2–IRF2BP2 axis, interacting with the NCOR1/SMRT co-repressor complex, suppresses the expression of the vast majority of archetypical erythroid genes and pathways until its decommissioning at the onset of terminal erythroid differentiation. Our experiments demonstrate that multimeric regulatory complexes feature a dynamic interplay between activating and repressing components that determines lineage-specific gene expression and cellular differentiation.

2015-11-19 | GSE59859 | GEO

Control of developmentally primed erythroid genes by combinatorial corepressor actions

Project description:How transcription factors (TFs) cooperate within large protein complexes to allow rapid modulation of gene expression during development is still largely unknown. Here we show that the key haematopoietic LIM-domain-binding protein-1 (LDB1) TF complex contains several activator and repressor components that together maintain an erythroid-specific gene expression programme primed for rapid activation until differentiation is induced. A combination of proteomics, functional genomics and in vivo studies presented here identifies known and novel co-repressors, most notably the ETO2 and IRF2BP2 proteins, involved in maintaining this primed state. The ETO2â??IRF2BP2 axis, interacting with the NCOR1/SMRT co-repressor complex, suppresses the expression of the vast majority of archetypical erythroid genes and pathways until its decommissioning at the onset of terminal erythroid differentiation. Our experiments demonstrate that multimeric regulatory complexes feature a dynamic interplay between activating and repressing components that determines lineage-specific gene expression and cellular differentiation. ChIP-Sequencing profiles of the IRF2BP2, GFI1B and LSD1 proteins were generated using mouse erythroleukemia (MEL) cells. RNA-seq experiments of Irf2bp2-WT, Irf2bp2-KD, Eto2-WT, Eto2-KD, Gfi1b-WT, Gfi1b-KD, Lsd1-WT, Lsd1-KD, MEL-non-induced, and MEL-induced stages were performed using standard RNA-seq protocol. Illumina HiSeq 2000 (standard TruSeq RNA sequencing protocol) was used for the sequencing.

2015-11-19 | E-GEOD-59859 | biostudies-arrayexpress

Control of developmentally primed erythroid genes by combinatorial co-repressor actions.

Project description:How transcription factors (TFs) cooperate within large protein complexes to allow rapid modulation of gene expression during development is still largely unknown. Here we show that the key haematopoietic LIM-domain-binding protein-1 (LDB1) TF complex contains several activator and repressor components that together maintain an erythroid-specific gene expression programme primed for rapid activation until differentiation is induced. A combination of proteomics, functional genomics and in vivo studies presented here identifies known and novel co-repressors, most notably the ETO2 and IRF2BP2 proteins, involved in maintaining this primed state. The ETO2-IRF2BP2 axis, interacting with the NCOR1/SMRT co-repressor complex, suppresses the expression of the vast majority of archetypical erythroid genes and pathways until its decommissioning at the onset of terminal erythroid differentiation. Our experiments demonstrate that multimeric regulatory complexes feature a dynamic interplay between activating and repressing components that determines lineage-specific gene expression and cellular differentiation.

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Let-7 microRNAs are developmentally regulated in circulating human erythroid cells

Project description:Let-7 microRNAs are developmentally regulated in circulating human erythroid cells

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Impact on erythroid progenitor type on erythroid differntiation

Project description:Impact on erythroid progenitor type on erythroid differntiation

| PRJNA515507 | ENA

Exosc8-Regulated Genes in Fetal Liver-Derived Erythroid Progenitor Cells

2014-08-09 | GSE60136 | GEO

Pluripotent stem cells reveal novel erythroid activities of the GATA1 N-terminus

Project description:This SuperSeries is composed of the SubSeries listed below. Germline GATA1 mutations resulting in the production of an amino-truncated protein termed GATA1s (for M-bM-^@M-^\shortM-bM-^@M-^]) cause congenital hypoplastic anemia. Similar somatic mutations promote transient myeloproliferative disease and acute megakaryoblastic leukemia in trisomy 21 patients. Here we show that induced pluripotent stem cells (iPSCs) from patients with GATA1-truncating mutations exhibit impaired erythroid potential but enhanced megakaryopoiesis and myelopoiesis, faithfully recapitulating the major phenotypes of associated diseases. Similarly, GATA1s promotes megakaryopoiesis but not erythropoiesis in developmentally arrested Gata1- murine megakaryocyte-erythroid progenitors derived from murine embryonic stem cells (ESCs). Transcriptome studies demonstrate a selective deficiency in the ability of GATA1s to activate erythroid-expressed genes within populations of hematopoietic progenitors. Although its DNA binding domain is intact, chromatin immunoprecipitation studies show that GATA1s binding at specific erythroid regulatory regions is impaired, while binding at many non-erythroid sites, including megakaryocytic and myeloid target genes, is normal. These observations point to lineage specific GATA1 co-factor associations essential for normal chromatin occupancy and provide mechanistic insights into how GATA1s mutations cause human disease. More broadly, our studies underscore the value of ESCs and iPSCs to recapitulate and study disease phenotypes. Refer to individual Series

2015-01-26 | E-GEOD-61933 | biostudies-arrayexpress

Exosc8-Regulated Genes in Fetal Liver-Derived Erythroid Progenitor Cells

Project description:Exosc8 and Exosc9 are components of the exosome that establish a barricade to erythroid maturation. Here, we knocked down Exosc8 in fetal liver-derived erythroid progenitor cells to determine the cohort of Exosc8-regulated genes in erythroid cells. Freshly isolated fetal liver progenitor cells were infected with retrovirus expressing shRNA targeting either luciferase or Exosc8. Total RNA was isolated from these cells after 3 days ex-vivo culture, during which the cells underwent erythroid maturation.

2014-08-09 | E-GEOD-60136 | biostudies-arrayexpress

640well-7cycles-combinatorial-ONT

Project description:640 combinatorial sequences

| PRJEB89961 | ENA