The adenosine A 2B G protein-coupled receptor: Recent advances and therapeutic implications

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Abstract

The adenosine A2B receptor (A2BAR) is one of four adenosine receptor subtypes belonging to the Class A family of G protein-coupled receptors (GPCRs). Until recently, the A2BAR remained poorly characterised, in part due to its relatively low affinity for the endogenous agonist adenosine and therefore presumed minor physiological significance. However, the substantial increase in extracellular adenosine concentration, the sensitisation of the receptor and the upregulation of A2BAR expression under conditions of hypoxia and inflammation, suggest the A2BAR as an exciting therapeutic target in a variety of pathological disease states. Here we discuss the pharmacology of the A2BAR and outline its role in pathophysiology including ischaemia-reperfusion injury, fibrosis, inflammation and cancer.

Original languageEnglish
Pages (from-to)20-33
Number of pages14
JournalPharmacology and Therapeutics
Volume198
DOIs
Publication statusPublished - 1 Jan 2019

Keywords

  • adenosine A receptor
  • cancer
  • fibrosis
  • inflammation and immune response
  • ischaemia-reperfusion injury

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