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Expression data from Satb1- and control-transduced LSK Flt3- cells

ABSTRACT: How hematopoietic stem cells (HSCs) produce specific lineages is not well understood. We searched for key factors that direct HSC to lymphopoiesis. Comparing gene expression profiles for HSCs and early lymphoid progenitors revealed that Satb1, a global chromatin regulator, was significantly induced with lymphoid lineage specification. HSCs from Satb1-null mouse were defective in lymphopoietic activity in culture, and failed to reconstitute T-lymphopoiesis in wild-type recipients. Furthermore, Satb1-transduction in HSCs, as well as in embryonic stem cells, robustly promoted their differentiation toward lymphocytes in culture. We prepared RNA samples from control or Satb1-transfected Lin- c-kitHi Sca-1+ Flt3- cells derived from WT mouse bone marrow.

ORGANISM(S): Mus musculus

SUBMITTER: Yusuke Satoh

PROVIDER: E-GEOD-45566 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Expression data from Satb1- and control-transduced LSK Flt3- cells

Project description:How hematopoietic stem cells (HSCs) produce specific lineages is not well understood. We searched for key factors that direct HSC to lymphopoiesis. Comparing gene expression profiles for HSCs and early lymphoid progenitors revealed that Satb1, a global chromatin regulator, was significantly induced with lymphoid lineage specification. HSCs from Satb1-null mouse were defective in lymphopoietic activity in culture, and failed to reconstitute T-lymphopoiesis in wild-type recipients. Furthermore, Satb1-transduction in HSCs, as well as in embryonic stem cells, robustly promoted their differentiation toward lymphocytes in culture.

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Transcriptome analysis of SATB1- and SATB1+ Hematopoietic stem cells.

Project description:Hematopoietic stem cells (HSCs) are now recognized as a heterogeneous population in self-renewing and differentiation capabilities. However, fundamental mechanisms governing the heterogeneity remain uncertain. We here show that special AT-rich sequence-binding protein 1 (SATB1), a global chromatin organizer, is involved in the mechanisms. Analyzing hematological lineage-restricted SATB1 knock out mice proved that SATB1 is indispensable for both self-renewal and normal differentiation of adult HSCs. Using SATB1/Tomato knock-in mice, we subdivided HSCs according to SATB1 intensity. Culture experiments and RNA-sequencing revealed essential differences between SATB1- and SATB1+ HSCs regarding lineage potential.

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Project description:Gene expression analysis on purified murine hematopoietic stem cells (HSCs) deficient for Special AT-rich sequence-binding protein 1 (Satb1) compared to wild-type HSCs. Analysis of gene expression of bone marrow-derived CD45.2+ CD150+cKit+Sca-1+CD4-CD8a-CD19-B220-Gr-1- HSCs from congenic recipient animals transplanted >20 weeks with either wild-type or Satb1-deficient hematopoeitic cells.

2013-04-07 | E-GEOD-44107 | biostudies-arrayexpress

Satb1

Project description:Satb1

| PRJNA788921 | ENA

Expression data in WT and Satb1-/- ES cells

Project description:Satb1 and Satb2 are regulators of higher order chromatin in T cells and osteoblasts repectively. We were interested if Satb1 and Satb2 play a role in the regulation of gene expression in ES cells. In this experiment, we compared the transcriptome of wild type and Satb1-/- ES cells. Interestingly Satb1-/- ES cells display an impaired differentiation potential. WT and Satb1-/- ES cells were grown for 3 days in the presence of LIF and selected for Oct4-expression cells by the addition of hygromycin to the culture medium. Previously the cells had been engineered so that they contain a selectable HygroTK reporter in the the Oct4 locus. Total RNA was harvested and used for hybridization.

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Genome-wide maps of DNA cytosine methylation state in during normal differentiation commitment in hematopoietic stem cells (HSC) and in Special AT-rich sequence-binding protein1 (Satb1) - deficient HSC

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