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Expression data from WT and GABPalpha-deficient Flt3(-) LSK cells

ABSTRACT: GABPalpha is an Ets family transcription factor and involved in regulation of both basic cellular functions such as cell cycle progression and tissue-specific biological processes. We found that GABPalpha is critically required for survival and differentiation of hematopoietic stem cells. We used microarrays to detect gene expression changes in Flt3(-) LSK cells (which contains both long-term and short-term hematopoietic stem cells) by GABPalpha deficiency.

ORGANISM(S): Mus musculus

PROVIDER: GSE23341 | GEO | 2011/07/28

SECONDARY ACCESSION(S): PRJNA131479

REPOSITORIES: GEO

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Expression data from WT and GABPalpha-deficient Flt3(-) LSK cells

Project description:GABPalpha is an Ets family transcription factor and involved in regulation of both basic cellular functions such as cell cycle progression and tissue-specific biological processes. We found that GABPalpha is critically required for survival and differentiation of hematopoietic stem cells. We used microarrays to detect gene expression changes in Flt3(-) LSK cells (which contains both long-term and short-term hematopoietic stem cells) by GABPalpha deficiency. Mx1Cre-GABPa(FL/+) and Mx1Cre-GABPa(FL/-) mice were treated with pIpC to induce inactivation of GABPalpha in bone marrow cells. Four days after last treatment of pIpC, the bone marrow cells were isolated and the Flt3(-)LSK subset was purified by cell sorting. RNA was extracted and hybridized to GeneChip Mouse GENE 1.0 ST arrays (Affymetrix).

2011-07-27 | E-GEOD-23341 | biostudies-arrayexpress

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Project description:To investigate the impact of perturbing key differentiation driver genes on hematopoietic stem cell fate decision, we employed a Dapp1 gene knockout approach. This allowed us to observe changes in the subpopulations of hematopoietic stem cells at the LSK level in mice. Additionally, we assessed alterations in their fate decision and lineage differentiation tendencies

2024-09-18 | GSE277292 | GEO

Hdac3 is essential for DNA replication and differentiation of hematopoietic stem and progenitor cells

Project description:Background: To define changes in gene expression from stem cells and early progenitor cells lacking histone deacetylase 3 (Hdac3), we purified bone marrow Lineage Negative, Sca1/cKit positive and Flt3 negative cells from wild type and Vav-Cre/Hdac3Flox/- mice. These lineage-specific knock out mice lack Hdac3 throughout the hematopoietic system. To ensure that only cells lacking Hdac3 were measured, we used a Lox-STOP-Lox-ROSA26-GFP transgene such that any cell containing active Cre also expresses GFP. Methods: Bone marrow cells were harvested from 10-30 mice and the lineage negative fraction was separated using the Lineage Cell Depletion Kit and MACS columns (Miltenyi Biotec). The lineage negative fraction was then stained with antibodies for flow cytometry and the GFP positive fraction of the LSK/Flt3 cells were sorted on a Becton Dickinson FACSAria. Total RNA was isolated from the sorted bone marrow cells using a PerfectPure RNA extraction kit (5 Prime). LSK/Flt3- cells pooled from 2 groups of 5 null mice were compared to LSK/Flt3- or LSK/Flt3+ cells pooled from 30 wild type mice. The expression of individual genes was verified using reverse transcriptase (RT) PCR. Conclusion: Hematopoietic stem and early progenitor cells fail to express gene that are typically turned on early during lymphoid development.

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