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The hypoxia-adenosine link during inflammation.

Jessica L Bowser1, Jae W Lee2, Xiaoyi Yuan2

  • 1Department of Anesthesiology, The University of Texas Health Science Center at Houston, McGovern Medical School, Houston, Texas jessica.l.bowser@uth.tmc.edu.

Journal of Applied Physiology (Bethesda, Md. : 1985)
|August 12, 2017
PubMed
Summary
This summary is machine-generated.

Hypoxia-inducible factors (HIFs) activate adenosine pathways to protect tissues during inflammation. Targeting this hypoxia-adenosine link offers a promising therapeutic strategy for inflammatory diseases.

Keywords:
HIFacute lung injuryadenosineadenosine receptorshypoxiainflammationinflammatory bowel diseasemyocardial injury

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Area of Science:

  • Biomedical Science
  • Molecular Biology
  • Immunology

Background:

  • Inflammatory diseases often involve hypoxic tissue conditions, leading to barrier breakdown and inflammation.
  • Hypoxia can also trigger protective mechanisms that reduce inflammation and maintain tissue integrity.

Purpose of the Study:

  • To explore the interplay between inflammation, hypoxia, and adenosine signaling.
  • To highlight the role of hypoxia-inducible factors (HIFs) in mediating these responses.
  • To discuss the therapeutic potential of targeting the hypoxia-adenosine axis in inflammatory diseases.

Main Methods:

  • Review of existing literature on hypoxia, inflammation, and adenosine metabolism.
  • Analysis of HIF-regulated genes involved in extracellular adenosine pathways.
  • Examination of preclinical and clinical data related to the hypoxia-adenosine axis in disease models.

Main Results:

  • HIFs directly regulate genes controlling extracellular adenosine metabolism and signaling.
  • HIF-driven adenosine pathways are crucial for tissue protection in conditions like myocardial injury, inflammatory bowel disease, and acute lung injury.
  • The hypoxia-adenosine connection plays a vital role in dampening inflammatory responses.

Conclusions:

  • The hypoxia-adenosine axis, mediated by HIFs, is a critical protective mechanism during inflammation.
  • Targeting this pathway presents a viable therapeutic avenue for managing inflammatory diseases.
  • Further research into this link could lead to novel treatment strategies.