Presynaptic adenosine and P2Y receptors.
Jorge Gonçalves1, Glória Queiroz
1Department of Pharmacology, University of Porto, Porto, Portugal. jgoncalves@reit.up.pt
Handbook of Experimental Pharmacology
|December 8, 2007
Summary
Adenosine and ATP are key molecules modulating neurotransmitter release. They activate P1 purinoceptors (adenosine receptors) and P2 receptors (nucleotide receptors) on presynaptic neurons.
Area of Science:
- Neuroscience
- Biochemistry
- Pharmacology
Background:
- Adenine-based purines like adenosine and ATP play crucial roles beyond metabolism.
- These molecules act as signaling molecules in the nervous system.
Purpose of the Study:
- To review the role of purines in modulating neurotransmitter release.
- To discuss the activation of purinergic receptors by adenosine and nucleotides.
Main Methods:
- Literature review focusing on P1 purinoceptors and P2Y receptors.
- Analysis of studies investigating purinergic modulation of neurotransmission.
Main Results:
- Adenosine activates presynaptic P1 purinoceptors (adenosine receptors).
- Nucleotides activate presynaptic P2 receptors.
- P2Y receptors are G protein-coupled, mediating purinergic signaling.
Conclusions:
- Purinergic signaling, mediated by adenosine and nucleotides, is vital for neurotransmitter release.
- P1 and P2 receptors represent key targets for understanding and modulating neuronal communication.
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