Cited by 461Immune cells in cancerCancer, Hypoxia, and MetabolismMacrophage Migration Inhibitory Factor

The DOI matches its Crossref record; 116 of the 116 references it cites were found in a registry or an index.

Hypoxia-inducible factor 2α regulates macrophage function in mouse models of acute and tumor inflammation

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Imtiyaz, Hongxia Z., Williams, Emily P., Hickey, Michele M., Patel, Shetal A., Durham, Amy C., Yuan, Li-Jun, Hammond, Rachel, Gimotty, Phyllis A., Keith, Brian, Simon, M. Celeste·2010·Journal of Clinical Investigation

Abstract

Hypoxia-inducible factor 1alpha (HIF-1alpha) and HIF-2alpha display unique and sometimes opposing activities in regulating cellular energy homeostasis, cell fate decisions, and oncogenesis. Macrophages exposed to hypoxia accumulate both HIF-1alpha and HIF-2alpha, and overexpression of HIF-2alpha in tumor-associated macrophages (TAMs) is specifically correlated with high-grade human tumors and poor prognosis. However, the precise role of HIF-2alpha during macrophage-mediated inflammatory responses remains unclear. To fully characterize cellular hypoxic adaptations, distinct functions of HIF-1alpha versus HIF-2alpha must be elucidated. We demonstrate here that mice lacking HIF-2alpha in myeloid cells (Hif2aDelta/Delta mice) are resistant to lipopolysaccharide-induced endotoxemia and display a marked inability to mount inflammatory responses to cutaneous and peritoneal irritants. Furthermore, HIF-2alpha directly regulated proinflammatory cytokine/chemokine expression in macrophages activated in vitro. Hif2aDelta/Delta mice displayed reduced TAM infiltration in independent murine hepatocellular and colitis-associated colon carcinoma models, and this was associated with reduced tumor cell proliferation and progression. Notably, HIF-2alpha modulated macrophage migration by regulating the expression of the cytokine receptor M-CSFR and the chemokine receptor CXCR4, without altering intracellular ATP levels. Collectively, our data identify HIF-2alpha as an important regulator of innate immunity, suggesting it may be a useful therapeutic target for treating inflammatory disorders and cancer.

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  1. Raick, 1973, Cancer Res., 33, 269
  2. Leek, 2002, Cancer Res., 62, 1326

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Metadata

Authors
Imtiyaz, H. Z., Williams, E. P., Hickey, M. M., Patel, S. A., Durham, A. C., Yuan, L.-J., Hammond, R., Gimotty, P. A., Keith, B., & Simon, M. C.
Affiliations
  • Howard Hughes Medical Institute (US)
  • Abramson Cancer Center (US)
Corresponding author
Simon, M. Celeste
Venue
Journal of Clinical Investigation
Published
2010-08-02
Volume
120
Issue
8
Pages
2699-2714
ISSN
0021-9738 (ISSN-L)
OpenAlex
W2041418689
Cited by
461
References
116
Citations by year
2026: 17 · 2025: 23 · 2024: 22 · 2023: 26 · 2022: 38 · 2021: 45 · 2020: 33 · 2019: 27 · 2018: 29 · 2017: 18 · 2016: 32 · 2015: 23 · 2014: 36 · 2013: 29 · 2012: 32
FWCI
12.51
Type
journal article
Language
en
Open access
Locations
  • Journal of Clinical Investigation (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Howard Hughes Medical Institute
  • Cancer Research Institute
  • National Institutes of Health
  • Directorate for Biological Sciences
  • U.S. Public Health Service (66310)
  • Abramson Family Cancer Research Institute
Topics
  • Life Sciences › Immunology and Microbiology › Immunology › Immune cells in cancer
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cancer Research › Cancer, Hypoxia, and Metabolism
  • Life Sciences › Immunology and Microbiology › Immunology › Macrophage Migration Inhibitory Factor
Keywords
HIF-2α, HIF-1α, tumor-associated macrophages, macrophage function, hypoxia, innate immunity, endotoxemia, lipopolysaccharide, inflammatory cytokines, chemokines, macrophage migration, M-CSF receptor, CXCR4, hepatocellular carcinoma, tumor inflammation, myeloid-specific knockout
MeSH terms
Endothelial PAS Domain-Containing Protein 1, Acute Disease, Animals, Cell Movement, Disease Models, Animal, Female, Immunity, Innate, Inflammation, Lipopolysaccharides, Macrophages, Mice, Inbred C57BL, Neoplasms, Nitric Oxide, Cytokines, Endotoxemia, Receptors, CXCR4, Mice, Basic Helix-Loop-Helix Transcription Factors, Basic Helix-Loop-Helix Proteins

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