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Hypoxia-inducible factors regulate T cell metabolism and function.

Anthony T Phan1, Ananda W Goldrath1

  • 1Division of Biological Sciences, Molecular Biology Section, University of California San Diego, 9500 Gilman Drive, La Jolla, CA 92093, USA.

Molecular Immunology
|August 24, 2015
PubMed
Summary

Hypoxia-inducible factors (HIFs) regulate immune cell metabolism and function. This study explores how HIFs are activated in T cells, impacting their metabolism, differentiation, and immunity.

Keywords:
DifferentiationHypoxia-inducible factorImmunityMetabolismT cell

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Area of Science:

  • Immunology
  • Cellular Metabolism
  • Molecular Biology

Background:

  • Immune cell function relies on coordinated responses to signals, often involving metabolic modulation.
  • Hypoxia-inducible factors (HIFs) are key regulators of cellular adaptation to low oxygen, influencing metabolism and effector functions.
  • HIFs are increasingly recognized for their role in T cell biology, affecting various cellular processes.

Purpose of the Study:

  • To discuss the oxygen-dependent and -independent regulation of HIF activity in T cells.
  • To explore the impact of HIFs on T cell metabolism, differentiation, function, and overall immunity.

Main Methods:

  • Review of existing literature on HIF regulation and T cell biology.
  • Analysis of oxygen-dependent and -independent signaling pathways affecting HIF.
  • Discussion of the downstream effects of HIF activation in T cells.

Main Results:

  • Hypoxia stabilizes HIF, activating distinct molecular programs in immune cells, including enhanced glycolysis.
  • Oxygen-independent signals also significantly enhance HIF activity in T cells.
  • HIFs play a crucial role in modulating T cell metabolism, differentiation, and effector functions.

Conclusions:

  • HIFs are critical integrators of environmental and signaling cues in T cells.
  • Understanding HIF regulation in T cells is vital for comprehending immune responses and developing immunotherapies.