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Expression data from MxCre;E2F1-/-2-/-3f/f Cd11B myeloid cells

ABSTRACT: To understand the underlying cause for the observed apoptosis in E2f1-3 deficient myeloid cells. We compared gene expression profiles of Cd11b+ sorted myeloid cells isolated from bone marrow of control (E2F1-/- ) and experimental (Mxcre;E2F1-/-2-/-3f/f ) mice. RNA was extracted from Cd11b cells from bone marrow of eight-week-old mice after FACS sorting with FITC- cojugated Cd11b antibody.

ORGANISM(S): Mus musculus

SUBMITTER: Prashant Trikha

PROVIDER: E-GEOD-25825 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Expression data from MxCre;E2F1-/-2-/-3f/f Cd11B myeloid cells

Project description:To understand the underlying cause for the observed apoptosis in E2f1-3 deficient myeloid cells. We compared gene expression profiles of Cd11b+ sorted myeloid cells isolated from bone marrow of control (E2F1-/- ) and experimental (Mxcre;E2F1-/-2-/-3f/f ) mice.

2010-12-03 | GSE25825 | GEO

Mus musculus

Project description:Expression data from MxCre E2F1-/-2-/-3f/f Cd11B myeloid cells

| PRJNA135641 | ENA

B-myb is Essential Regulator of Hematopoietic Stem Cell and Myeloid Progenitor Cell Development

Project description:The B-myb (MYBL2) gene is a member of the MYB family of transcription factors and is involved in cell cycle regulation, DNA replication and maintenance of genomic integrity. However, its function during adult development and hematopoiesis is unknown. We show here that conditional inactivation of B-myb in vivo results in depletion of the HSC pool, leading to profound reductions in mature lymphoid, erythroid and myeloid cells. This defect is autonomous to the bone marrow and is first evident in the HSCs, which accumulate in the S and G2/M phases. B-myb inactivation also causes defects in the myeloid progenitor compartment and results in an accumulation of GMPs. Microarray studies indicate that B-myb null LKS+ cells differentially express genes that direct myeloid lineage development and commitment, suggesting that B-myb is a key player in controlling cell fate. Collectively, these studies demonstrate that B-myb is essential for HSC and progenitor maintenance and survival during hematopoiesis. Total RNA was isolated from FACS purified LKS+ cells isolated from pIpC-treated control and B-myb floxed-MxCre mice. Each sample is derived from a pool of 3-5 mice. 2 samples were analyzed for each genotype.

2014-02-12 | E-GEOD-53875 | biostudies-arrayexpress

Differentially expressed genes of CD11b+Gr-1+ myeloid cells

Project description:Differentially expressed genes of CD11b+Gr-1+ immature myeloid cells (IMCs) in the bone marrow and colonic tumor setting of histidine decarboxylase (HDC)-KO mice were examined by microarray (Affymetrix Mouse 430.2 array). Myeloid differentiation-related candidate genes were sought to be isolated and functionally studied. Total RNA of HDC-expressing CD11b+Gr-1+ IMCs of bone marrow were extracted from HDC-EGFP and HDC-EGFP/HDC-KO mice (3 mice in each group). CD11b+Gr-1+ myeloid-derived suppressor cells (MDSCs) of colon tumor were sorted from 10-12 colon tumors of WT and HDC-KO mice (5 mice in each group), and pooled to extract total RNA for microarray studies. Two technical replicates for each of the four groups. Four sets of comparisons were performed to screen for upregulated or downregulated genes in the HDC-KO CD11b+Gr-1+ IMCs or MDSCs (experiment group) compared to the WT group: (1) HDC-expressing CD11b+Gr-1+ IMCs of bone marrow of HDC KO mice compared to bone marrow IMCs of WT mice; (2) CD11b+Gr-1+ MDSCs in tumors of HDC-KO mice compared to WT mice; (3) CD11b+Gr-1+ MDSCs of WT colon tumors compared to IMCs in the WT bone marrow; and (4) CD11b+Gr-1+ MDSCs of colon tumors of HDC-KO mice compared to IMCs in the bone marrow of HDC-KO mice.

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Establishing hematopoietic stem cell gene therapy for breast cancer brain metastases using intratumoral myeloid cell-specific gene promoters

Project description:The goal was to identify genes that are differentially expressed between the bone marrow-derived CD11b+ myeloid cells infiltrating intracranial tumors and the peripheral myeloid cells (e.g. infiltrating the spleen and bone marrow).

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Gene expression profile at the single cell level of CD45+ CD11b+ cells isolated from the brain and bone marrow of mice either untreated or conditioned and transplanted with total bone marrow.

Project description:We used single-cell RNA sequencing (scRNA-seq) to analyze the diversity of bone marrow-derived CD45+CD11b+ microglia-like cells (MGLCs) engrafted in the brain of recipient mice that were conditioned using Busulfan and PLX3397 and transplanted with total bone marrow. We compared the gene expression of MGLCs to that of developmentally-derived CD45+ CD11b+ microglia/myeloid cells isolated from the brain of recipient mice (host microglia) and untreated mice (naive microglia). We also compared the gene expression of MGLCs to that of transplant-derived CD45+ CD11b+ cells engrafted in the bone marrow (abbreviated as BM-CD11b+)

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RNA-seq study on mouse bone marrow leukemia cells isolated from secondary transplant recipients receiving conditional knockout Arid1b or Arid2 MLL-AF9 cells

Project description:We isolated whole bone marrow leukemia cells from moribund secondary transplant recipients receiving VavCre+ (control), Arid1b fl/fl VavCre+ (knockout), Arid2 fl/fl VavCre+ (knockout), MxCre+ (control), Arid1b fl/fl MxCre+ (knockout), or Arid2 fl/fl MxCre+ (knockout) primary MLL-AF9 cells. Mice receiving MxCre+ (control), Arid1b fl/fl MxCre+ (knockout), or Arid2 fl/fl MxCre+ (knockout) MLL-AF9 cells were injected with pIpC 21 days post transplant. Total RNA was isolated followed by mRNA selection. cDNA libraries were generated and NextGen Sequencing was performed.

2022-03-08 | GSE188291 | GEO

Quantitative Temporal in vivo Proteomics (QTiPs) deciphers the transition of inflammatory CD11b+,Ly6G-,Ly6Chigh myeloid cells into M2-like macrophages

Project description:Phenotypic transition of myeloid cells into distinct lineages in vivo is important in pathogen response. To monitor immune cell phenotype transitions in vivo, we developed a quantitative temporal in vivo proteomics (QTiPs) platform, performing multiplexed (10-plex) tandem-mass-tag (TMT)-based mass spectrometry on sorted cells collected from their in situ microenvironment during infection. We temporally characterized a poorly understood, virus-driven CD11b+,Ly6G-,Ly6Chigh-low myeloid cell population throughout an acute phase of infection in both the site of infection and bone marrow. QTiPs, in combination with phenotypic, functional and metabolic analyses, elucidated a pivotal role for inflammatory CD11b+,Ly6G-,Ly6Chigh-low cells in anti-viral immune response and viral clearance. Most importantly, the highly time-resolved QTiPs dataset showed the transition of CD11b+,Ly6G-,Ly6Chigh-low cells into M2-like macrophages which displayed increased antigen presentation capacities and bioenergetic demands late in infection. Our QTiPs approach precisely captures myeloid cell-macrophage transition in this population, and it is a novel platform for measuring temporospatial proteome transitions in vivo.

2017-08-09 | PXD005064 | Pride

Gene expression analysis of Cbp deficient LSK cells

Project description:The transcriptional coactivator Cbp is critical for hematopoietic stem cell (HSC) development. However, its role in adult HSC and the mechanistic detail of Cbp control of HSC function remains unknown. Using conditional deletion of Cbp in the adult HSC compartment, we demonstrate an altered balance between differentiation and self-renewal with gradual loss of phenotypic HSC, differentiation defects in lower compartments and the development of myeloid malignancies. In addition, we demonstrate that Cbp -/- HSCs reconstitute hematopoiesis with lower efficiency than their wild type counterparts and readily exhaust over time when placed under the replicative stress of serial transplantation. Furthermore, we demonstrate abnormal cell cycle (re)entry and apoptosis in HSC which, with preferential differentiation, also contribute to stem cell exhaustion. Finally we demonstrate global transcriptional abnormalities predicted to alter cell cycle control, balanced differentiation and HSC function upon Cbp deletion and link Cbp to a critical HSC transcriptional regulatory network through genome-wide analysis of Cbp binding. Genome-wide gene expression analysis of LSK population after Cbp deletion. The LSK population of bone marrow is enriched for hematopoietic stem cells. Total RNA was extracted from flow-sorted LSK population of bone marrow, 4 weeks after pIpC induced deletion of Cbp. 2 replicates for Cbp wt control, 2 replicates for Cbp Mx.

2011-12-15 | E-GEOD-25268 | biostudies-arrayexpress

Functional and Molecular Single-Cell Analyses Implicate PRDM14 in the Initiation of a Novel B-1 Cell Malignancy - Single Cell RNA sequencing experiments

Project description:Description: Molecular mechanisms underlying high-risk subtypes of leukemia remain elusive. PR domain-containing 14 (Prdm14) is a potent oncogene implicated in the initiation of many cancers, including leukemia. Here, we interrogate the heterogeneity of Prdm14-expressing cell types in a mouse model of T-cell acute lymphoblastic leukemia (T-ALL). We identified an abnormal B-1 cell-like population in pre-leukemic bone marrow. B-1 cells are a self-renewing population of unconventional B cells established during embryonic development. This dataset contains single-cell transcriptomic profiling of four samples. Cells from R26PR;Mx1-cre mice were sorted on GFP expression (“GFP+” and “GFP-” samples) or on a pro-B-1-like immunophenotype of CD11b- CD19+ CD127+ Sca-1+ (“Pre-leukemia” sample). As a control, immunophenotype-matched cells from R26PR mice were analyzed by scRNA-seq after sorting on CD11b- CD19+ CD127+ Sca-1+ (“Control” sample) (Supplemental Figure 2). Accordingly, we conducted scRNA-seq of four total samples: “GFP+”, “GFP-“, “Pre-leukemia”, and “Control”. The GFP+ and GFP- samples provide the cellular context to the bone marrow samples.

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