Cited by 867Hematopoietic Stem Cell TransplantationMesenchymal stem cell researchCancer, Hypoxia, and Metabolism

Distribution of hematopoietic stem cells in the bone marrow according to regional hypoxia

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Parmar, Kalindi, Mauch, Peter, Vergilio, Jo-Anne, Sackstein, Robert, Down, Julian D.·2007·Proceedings of the National Academy of Sciences

Abstract

The interaction of stem cells with their bone marrow microenvironment is a critical process in maintaining normal hematopoiesis. We applied an approach to resolve the spatial organization that underlies these interactions by evaluating the distribution of hematopoietic cell subsets along an in vivo Hoechst 33342 (Ho) dye perfusion gradient. Cells isolated from different bone marrow regions according to Ho fluorescence intensity contained the highest concentration of hematopoietic stem cell (HSC) activity in the lowest end of the Ho gradient (i.e., in the regions reflecting diminished perfusion). Consistent with the ability of Ho perfusion to simulate the level of oxygenation, bone marrow fractions separately enriched for HSCs were found to be the most positive for the binding of the hypoxic marker pimonidazole. Moreover, the in vivo administration of the hypoxic cytotoxic agent tirapazamine exhibited selective toxicity to the primitive stem cell subset. These data collectively indicate that HSCs and the supporting cells of the stem cell niche are predominantly located at the lowest end of an oxygen gradient in the bone marrow with the implication that regionally defined hypoxia plays a fundamental role in regulating stem cell function.

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Crossref · 10.1073/pnas.0701152104

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  • At least some stem cell populations reside in poorly oxygenated niches.

    “at least some stem cell populations reside in poorly oxygenated niches110–112”

    From Molecular regulation of stem cell quiescence (2013) · cites this paper as [112]

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Authors
Parmar, K., Mauch, P., Vergilio, J.-A., Sackstein, R., & Down, J. D.
Affiliations
  • Dana-Farber Cancer Institute (US)
  • Pathology, and
  • Brigham and Women's Hospital (US)
  • **Genetix Pharmaceuticals, Inc., Cambridge, MA 02139
Venue
Proceedings of the National Academy of Sciences
Published
2007-03-27
Volume
104
Issue
13
Pages
5431-5436
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W2017965105
Cited by
867
References
50
Citations by year
2026: 15 · 2025: 24 · 2024: 11 · 2023: 18 · 2022: 32 · 2021: 47 · 2020: 37 · 2019: 39 · 2018: 50 · 2017: 48 · 2016: 37 · 2015: 65 · 2014: 55 · 2013: 75 · 2012: 69
FWCI
35.31
Type
journal article
Language
en
Open access
Locations
  • Proceedings of the National Academy of Sciences (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Institutes of Health
  • National Heart, Lung, and Blood Institute (R01HL073714)
  • National Cancer Institute (R01CA010941)
  • National Institute of Allergy and Infectious Diseases (U19AI067751)
Topics
  • Health Sciences › Medicine › Hematology › Hematopoietic Stem Cell Transplantation
  • Health Sciences › Medicine › Genetics › Mesenchymal stem cell research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cancer Research › Cancer, Hypoxia, and Metabolism
Keywords
hematopoietic stem cells, bone marrow microenvironment, regional hypoxia, oxygen gradients, pimonidazole, tirapazamine, stem cell niche, hematopoiesis
MeSH terms
Tirapazamine, Animals, Hypoxia, Benzimidazoles, Bone Marrow Cells, Cell Differentiation, Hematopoietic Stem Cells, Hematopoietic System, Mice, Inbred C57BL, Nitroimidazoles, Oxygen, Perfusion, Stem Cells, Triazines, Mice

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