Project description:We performed RNA sequencing analyses of adult mouse bone marrow lineage-negative, Sca-1-positive, and c-kit-positive (LSK) hematopoietic stem/progenitor cell population. Especially, we investigated gene expression profiling of LSK cells before and after haloperidol treatment.
Project description:Peripheral inflammation affects hematopoietic stem and progenitor cells (HSPCs) in the bone marrow and induce myeloid lineage skewing of the progenitor cells. In this study, we performed single cell ATAC-sequencing in LSK (Lin—Sca-1+cKit+ ) and GMP (Lin—c-Kit+Sca1—CD16/32+CD34+) cells to determine the impact of ligature-induced periodontitis (LIP) on the epigenomic profile of these BM cells.
Project description:To detect the role of OP9 stromal cells in our optimized 3D self-assembling peptide induction system followed by the OP9 coculture system. First, we used RNA-seq to analyze mouse pluripotent stem cells derived total cells at day5 between the 3D+OP9 and 3D+0.1% group in our hematopoietic differentiation system. In addition, to further evaluate hematopoietic transcriptome differences between Lin-Sca-1+c-kit+CD201+ cells and Lin-Sca-1+c-kit+CD201- cells, we used RNA-seq to analyze mouse pluripotent stem cells derived Lin-Sca-1+c-kit+CD201+ and Lin-Sca-1+c-kit+CD201- cells at day5 in our 3D+OP9 hematopoietic differentiation system.Meanwhile,we used the mouse embryonic stem cell(mESC) as negative control and bone marrow derived Lin-Sca-1+c-kit+CD201+ and fetal liver derived Lin-Sca-1+c-kit+CD201+ as positive control.
Project description:We report the genome wide distribution of the three states of H3K79 methylation (H3K79me1/me2/me3) and H3K27me3 in mouse lineage negative Sca-1 positive Kit positive cells (LSKs), granulocyte macrophage progenitors (GMPs) and LSK derived MLL-AF9 leukemias in the presence or absence of the Af10 OM-LZ domain. Legend- MIT:MSCV-IRES-tdTomato (Empty vector control) and CRE (MIT vector with the Cre recombinase).
Project description:To interrogate the molecular pathways disrupted by Jak2V617F expression and/or Tet2 loss, Lin-negative, Sca-1-positive, c-kit-positive (LSK) hematopoietic progenitor cells were isolated from bone marrow of wild-type, Jak2V617F, Tet2-null or Jak2V617F/Tet2-null animals (n= 2-4 mice per group) and subjected to gene expression profiling.
Project description:The JAK2V617F mutation has been detected in ~50% cases of MF. Elevated expression of high mobility group AT hook 2 (HMGA2) also has been frequently observed in patients with MF. Interestingly, upregulation of HMGA2 expression has been found in association with the JAK2V617F mutation in significant cases of MF. However, the contribution of HMGA2 in the pathogenesis of MF remains elusive. To determine the effects of concurrent expression of HMGA2 and JAK2V617F mutation in hematopoiesis, we transduced bone marrow cells from Jak2V617F knock-in mice with lentivirus expressing Hmga2 and performed bone marrow transplantation. In order to assess the effects of Hmga2 overexpression on gene expression, we performed RNA sequencing analysis for the LSK from Jak2VF/+ vector and Jak2VF/+ Hmga2mice.
Project description:The study was a comparison of gene expression using RNA-seq. We analyzed the stem and progenitor cells from WT and Vav-cre+ Tet2fl/fl Flt3-ITD (T2F3) mice. We isolated stem cells LSK (lin- sca+ kit+) and granulocyte-macrophage progenitors GMP (lin- sca- kit+ fcgr+ cd34+) cells from bone marrow. Comparisons were made across genotypes WT vs. T2F3 and cell types LSK vs. GMP.
Project description:By tracing the VE-cadherin expression in the newborn bone marrow hematopoietic LSK (lineage minus/Sca-positive/Kit-positive) cells, we demonstrated that the late foetal/newborn BM hemogenic endothelial cells produce a small cohort of hematopoietic stem and progenitor cells (HSPCs) capable of circulating and colonizing the secondary haematopoietic organs. Phenotypic and functional analyses disclosed that BM endothelium-derived HSPCs are mainly Multipotent Progenitors (MPPs) and a few Hematopoietic Stem Cells. We used microarrays to detail the global programme of gene expression underlying the endothelial origin of LSK cells in the newborn bone marrow.
Project description:To identify genes that are influenced by the catalytic and non-catalytic functions of Tet2 in hematopoietic stem and progenitor cells (HSPCs), we analyzed the gene expression profiles of Tet2 catalytic mutant (Tet2 Mut), Tet2 knockout (Tet2 KO) and wild-type HSPCs (or LSK, Lin–Sca-1+c-Kit+) and multi-potent progenitor (or MPP, Lin–) cells by RNA-seq.
Project description:We performed RNA sequencing analyses of adult mouse bone marrow lineage-negative, Sca-1-positive, and c-kit-positive (LSK) multipotent progenitor cells in wildtype and Drd2 Drd3 double knockout mice
