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Adenosine receptor subtypes

M G Collis1, S M Hourani

  • 1Pfizer Central Research, Sandwich, UK.

Trends in Pharmacological Sciences
|October 1, 1993
PubMed
Summary

Developing selective adenosine receptor drugs is challenging but feasible. Further functional studies are needed to realize the therapeutic potential of adenosine receptor subtypes.

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Area of Science:

  • Pharmacology
  • Neuroscience
  • Molecular Biology

Background:

  • Adenosine receptors play diverse roles, presenting therapeutic opportunities and challenges in drug selectivity.
  • Identifying specific adenosine receptor subtypes (A1, A2A, A2B, A3) is crucial for targeted drug development.

Purpose of the Study:

  • To review the current classification of adenosine receptors.
  • To emphasize the need for evaluating selective ligands in functional assays to unlock therapeutic potential.

Main Methods:

  • Review of biochemical, functional, and receptor-cloning studies.
  • Analysis of data supporting the existence of adenosine receptor subtypes.
  • Assessment of functional significance in in vitro and in vivo preparations.

Main Results:

  • Convergent data support the existence of A1, A2A, A2B, and A3 adenosine receptors.
  • Functional studies in intact tissues have not kept pace with biochemical findings.

Conclusions:

  • Achieving selectivity in adenosine receptor drug development is feasible with subtype identification.
  • Further evaluation of selective ligands in diverse functional preparations is essential for therapeutic advancement.

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