Project description:Rare dormant hematopoietic stem cells (dHSCs) reside at the top of the blood hierarchy harboring the highest long-term reconstitution capacity. Here, we present the global transcriptome of ex vivo isolated mouse multipotent dormant hematopoietic stem cells (dHSC), active HSCs (aHSCs) and multipotent progenitor cells (MPP1) as revealed by next-generation sequencing (RNA-seq) at the population level.
Project description:Transcription profiling by high throughput sequencing between multipotent hematopoietic stem progenitor cells LS+K) and myeloid committed cells (LSK) of the mouse bone marrow
Project description:Hematopoietic stem cells (HSC) possess life-long self-renewal activity and generate a series of multipotent progenitors that differentiate into lineage-committed progenitors and subsequently mature cells. Recently, functionally distinct stem and progenitor cell types have been identified, however, a systems-wide understanding of the underlying gene regulation is lacking. Here, we present the global transcriptome of ex vivo isolated mouse multipotent hematopoietic stem/progenitor cells (HSPCs, LinnegSca-1+c-Kit+) and myeloid committed precursors (LinnegSca-1-c-Kit+) as revealed by next-generation sequencing (RNA-seq).
Project description:Rare dormant hematopoietic stem cells (dHSCs) reside at the top of the blood hierarchy harboring the highest long-term reconstitution capacity. However, no markers exist to prospectively identify dHSCs and their molecular identity, as well as the mechanism leading to their activation remains poorly understood. Here, we present the global transcriptome of ex vivo isolated mouse multipotent hematopoietic stem cells (HSCs) and dHSCs at the single cell level.
Project description:Murine long-term hematopoietic stem cells (HSCs), short-term HSCs and multipotent progenitor cells (MPPs) were isolated from bone marrow and expression profiled on Affy chips. The behavior of maternal-specific imprinting genes, particularly in the H19-Igf2 locus, was focused on, to see if any might be involved in maintaining quiescence of long-term stem cells.
Project description:We isolated by fluorescence-activated cell sorting highly purified populations (long term hematopoietic stem cells (LT-HSCs), short term hematopoietic stem cells (ST-HSCs), multipotent progenitors (MPPs), common myeloid progenitor (CMPs), granulocyte and monocyte progenitors (GMPs), multilymphoid progenitors (MLPs), Myeloid-erythorid Progenitor (MEP), Granulocytes, Monocytes, B cells, T cells, Dendritic cells, Natural Killer cells and Erythrocyte Progenitors from 3 to 4 cord blood pools. We extracted RNA from 5K cells of each population and performed RNA-sequencing.
Project description:RNA-sequencing of human B cells to investigate chronic lymphocytic leukemia mutations observed in hematopoietic multipotent progenitor fractions
Project description:Long-term hematopoietic stem cells are rare, highly quiescent stem cells of the hematopoietic system with life-long self-renewal potential and the ability to transplant and reconstitute the entire hematopoietic system of conditioned recipients. Most of our understanding of these rare cells has relied on cell surface identification, epigenetic and transcriptomic analyses. Our knowledge of protein synthesis, folding, modification and degradation – broadly termed protein homeostasis or “proteostasis” – in these cells is still in its infancy. Here we report the requirement of the small phospho-binding adaptor proteins, the cyclin dependent kinase subunits (Cks1 and Cks2), for maintaining ordered hematopoiesis and long-term hematopoietic stem cell reconstitution. Cks1 and Cks2 are critical regulators of a myriad of key intracellular signalling pathways that govern hematopoietic stem cell biology and together they balance protein homeostasis and restrain reactive oxygen species to ensure healthy hematopoietic stem cell function.