PreprintCited by 185Hematopoietic Stem Cell TransplantationCancer, Hypoxia, and MetabolismDevelopmental Biology and Gene Regulation

Multilineage embryonic hematopoiesis requires hypoxic ARNT activity

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Adelman, D. M., Maltepe, E., Simon, M. C.·1999·Genes & Development

Abstract

Although most cells undergo growth arrest during hypoxia, endothelial cells and placental cytotrophoblasts proliferate in response to low O(2). We demonstrate that proliferation of embryonic multilineage hematopoietic progenitors is also regulated by a hypoxia-mediated signaling pathway. This pathway requires HIF-1 (HIF-1alpha/ARNT heterodimers) because Arnt(-/-) embryoid bodies fail to exhibit hypoxia-mediated progenitor proliferation. Furthermore, Arnt(-/-) embryos exhibit decreased numbers of yolk sac hematopoietic progenitors. This defect is cell extrinsic, is accompanied by a decrease in ARNT-dependent VEGF expression, and is rescued by exogenous VEGF. Therefore, "physiologic hypoxia" encountered by embryos is essential for the proliferation or survival of hematopoietic precursors during development.

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Crossref · 10.1101/gad.13.19.2478

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  • Hypoxia promotes erythropoiesis by modulating erythroid progenitor maturation and proliferation.

    “It promotes erythropoiesis by modulating erythroid progenitor maturation and proliferation.”

    From Regulation of erythropoiesis by hypoxia-inducible factors (2013) · cites this paper as [224]

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Authors
Adelman, D. M., Maltepe, E., & Simon, M. C.
Affiliations
Howard Hughes Medical Institute (US)
Venue
Genes & Development
Published
1999-10-01
Volume
13
Issue
19
Pages
2478-2483
ISSN
0890-9369 (ISSN-L)
OpenAlex
W2119607030
Cited by
185
References
41
Citations by year
2026: 3 · 2024: 1 · 2022: 8 · 2021: 4 · 2020: 1 · 2019: 1 · 2018: 3 · 2017: 6 · 2016: 3 · 2015: 12 · 2014: 9 · 2013: 13 · 2012: 8
Type
posted content
Language
en
Open access
Locations
  • Genes & Development (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Hematology › Hematopoietic Stem Cell Transplantation
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cancer Research › Cancer, Hypoxia, and Metabolism
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Developmental Biology and Gene Regulation
Keywords
embryonic hematopoiesis, hypoxia, ARNT, HIF-1, hematopoietic progenitor proliferation, vascular endothelial growth factor, embryoid bodies, endothelial cell proliferation
MeSH terms
Animals, Cell Differentiation, Cells, Cultured, DNA-Binding Proteins, Erythropoietin, Female, Hematopoiesis, Hematopoietic Stem Cells, Humans, Lymphokines, Male, Mice, Inbred C57BL, Nuclear Proteins, Stem Cells, Transcription Factors, Cell Hypoxia, Endothelial Growth Factors, Receptors, Aryl Hydrocarbon, Cell Lineage, Vascular Endothelial Growth Factors, Vascular Endothelial Growth Factor A, Mice, Aryl Hydrocarbon Receptor Nuclear Translocator, Hypoxia-Inducible Factor 1, Hypoxia-Inducible Factor 1, alpha Subunit

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