Chapter title |
3',5'-cIMP as Potential Second Messenger in the Vascular Wall.
|
---|---|
Chapter number | 39 |
Book title |
Non-canonical Cyclic Nucleotides
|
Published in |
Handbook of experimental pharmacology, January 2016
|
DOI | 10.1007/164_2015_39 |
Pubmed ID | |
Book ISBNs |
978-3-31-952671-3, 978-3-31-952673-7
|
Authors |
Leung, Susan W S, Gao, Yuansheng, Vanhoutte, Paul M, Susan W. S. Leung, Yuansheng Gao, Paul M. Vanhoutte |
Abstract |
Traditionally, only the 3',5'-cyclic monophosphates of adenosine and guanosine (produced by adenylyl cyclase and guanylyl cyclase, respectively) are regarded as true "second messengers" in the vascular wall, despite the presence of other cyclic nucleotides in different tissues. Among these noncanonical cyclic nucleotides, inosine 3',5'-cyclic monophosphate (cIMP) is synthesized by soluble guanylyl cyclase in porcine coronary arteries in response to hypoxia, when the enzyme is activated by endothelium-derived nitric oxide. Its production is associated with augmentation of vascular contraction mediated by stimulation of Rho kinase. Based on these findings, cIMP appears to meet most, if not all, of the criteria required for it to be accepted as a "second messenger," at least in the vascular wall. |
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