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Updated: Mar 7, 2026

Flow Cytometry Analysis of Murine Bone Marrow Hematopoietic Stem and Progenitor Cells and Stromal Niche Cells
Published on: September 28, 2022
The bone marrow niche for haematopoietic stem cells
Sean J Morrison1, David T Scadden2
1Howard Hughes Medical Institute, Children's Research Institute, Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas, Texas 75390, USA.
The hematopoietic stem cell (HSC) niche in bone marrow is perivascular, involving stromal and endothelial cells. Further research is needed to fully define its cellular complexity and functional heterogeneity.
Area of Science:
- Stem cell biology
- Hematopoiesis
- Tissue microenvironments
Background:
- Niches are crucial local microenvironments regulating stem cells.
- Hematopoiesis serves as a model for mammalian stem cell research.
- The hematopoietic stem cell (HSC) niche is not fully understood, with competing models existing.
Purpose of the Study:
- To elucidate the location and cellular components of the HSC niche in the bone marrow.
- To address outstanding questions regarding HSC niche complexity and function.
Main Methods:
- Review of recent progress in HSC niche research.
- Analysis of cellular components and location within the bone marrow.
Main Results:
- The HSC niche is predominantly perivascular.
- Mesenchymal stromal cells and endothelial cells contribute to niche formation.
- The niche is often, but not exclusively, situated near trabecular bone.
Conclusions:
- The HSC niche is a perivascular microenvironment in the bone marrow.
- Key cellular components include mesenchymal stromal cells and endothelial cells.
- Further investigation is required into niche cellular complexity, endosteal role, and functional heterogeneity.
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