Work

Regulation of cell proliferation by hypoxia-inducible factors

Year: 2015

Type: review

Abstract: Hypoxia is a physiological cue that impacts diverse physiological processes, including energy metabolism, autophagy, cell motility, angiogenesis, and erythropoiesis. One of the key cell-autonomous effects of hypoxia is as a modulator of cell proliferation. For most cell types, hypoxia induces decreased cell proliferation, since an increased number of cells, with a consequent increase in O2 demand, would only exacerbate hypoxic stress. However, certain cell populations maintain cell proliferation in the face of hypoxia. This is a common pathological hallmark of cancers, but can also serve a physiological function, as in the maintenance of stem cell populations that reside in a hypoxic niche. This review will discuss major molecular mechanisms by which hypoxia regulates cell proliferation in different cell populations, with a particular focus on the role of hypoxia-inducible factors.

Source: American Journal of Physiology-Cell Physiology

DOI: 10.1152/ajpcell.00279.2015

Authors: Maimon E. Hubbi, Gregg L. Semenza

Institutions: The University of Texas Southwestern Medical Center, Johns Hopkins University, Johns Hopkins Medicine

Language: English

Topic: Cancer, Hypoxia, and Metabolism

Subfield: Cancer Research

Field: Biochemistry, Genetics and Molecular Biology

Domain: Life Sciences

SDG: Good health and well-being

Open Access status: green

Funders: U.S. Public Health Service, National Heart, Lung, and Blood Institute