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P2 purinoceptors: historical perspective and classification
1Department of Anatomy and Developmental Biology, University College London, UK.
Ciba Foundation Symposium
|January 1, 1996
Summary
This review explores P2 purinoceptor research, classifying them into P2X (ion channels) and P2Y (GPCRs) families. Future research directions include trophic actions, evolution, and therapeutic uses of purines.
Area of Science:
- Pharmacology
- Molecular Biology
- Neuroscience
Background:
- P2 purinoceptors are crucial cell surface receptors activated by extracellular nucleotides.
- Historical classification proposed two main families: P2X (ligand-gated ion channels) and P2Y (G protein-coupled receptors).
Purpose of the Study:
- To provide historical context for P2 purinoceptor research.
- To review the classification and subclasses of P2 purinoceptors.
- To suggest future research avenues in purinoceptor biology and therapeutics.
Main Methods:
- Literature review and synthesis of existing research.
- Tabulation of P2 purinoceptor subclasses (P2X1-4, P2Y1-5) based on molecular cloning and expression data.
Main Results:
- Confirms the established classification of P2 purinoceptors into P2X and P2Y families.
- Details the latest subclasses identified through molecular techniques.
- Highlights the significance of these receptors in various physiological processes.
Conclusions:
- P2 purinoceptor research continues to evolve, with established families and emerging subclasses.
- Future research should focus on the trophic actions, evolutionary aspects, and therapeutic potential of purines.
- Understanding P2 purinoceptor subtypes is critical for developing novel pharmacological interventions.