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Rapid Nitric Oxide-induced Desensitization of the CGMP Response is Caused by Increased Activity of Phosphodiesterase Type 5 Paralleled by Phosphorylation of the Enzyme

Overview
Journal J Cell Biol
Specialty Cell Biology
Date 2001 Oct 18
PMID 11604422
Citations 43
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Abstract

Most of the effects of the signaling molecule nitric oxide (NO) are mediated by cGMP, which is synthesized by soluble guanylyl cyclase and degraded by phosphodiesterases. Here we show that in platelets and aortic tissue, NO led to a biphasic response characterized by a tremendous increase in cGMP (up to 100-fold) in less than 30 s and a rapid decline, reflecting the tightly controlled balance of guanylyl cyclase and phosphodiesterase activities. Inverse to the reported increase in sensitivity caused by NO shortage, concentrating NO attenuated the cGMP response in a concentration-dependent manner. We found that guanylyl cyclase remained fully activated during the entire course of the cGMP response; thus, desensitization was not due to a switched off guanylyl cyclase. However, when intact platelets were incubated with NO and then lysed, enhanced activity of phosphodiesterase type 5 was detected in the cytosol. Furthermore, this increase in cGMP degradation is paralleled by the phosphorylation of phosphodiesterase type 5 at Ser-92. Thus, our data suggest that NO-induced desensitization of the cGMP response is caused by the phosphorylation and subsequent activity increase of phosphodiesterase type 5.

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References
1.
Ignarro L, Cirino G, Casini A, Napoli C . Nitric oxide as a signaling molecule in the vascular system: an overview. J Cardiovasc Pharmacol. 1999; 34(6):879-86. DOI: 10.1097/00005344-199912000-00016. View

2.
Biel M, Zong X, Ludwig A, Sautter A, Hofmann F . Structure and function of cyclic nucleotide-gated channels. Rev Physiol Biochem Pharmacol. 1999; 135:151-71. DOI: 10.1007/BFb0033672. View

3.
Bellamy T, Wood J, Goodwin D, Garthwaite J . Rapid desensitization of the nitric oxide receptor, soluble guanylyl cyclase, underlies diversity of cellular cGMP responses. Proc Natl Acad Sci U S A. 2000; 97(6):2928-33. PMC: 16032. DOI: 10.1073/pnas.97.6.2928. View

4.
Hofmann F, Ammendola A, Schlossmann J . Rising behind NO: cGMP-dependent protein kinases. J Cell Sci. 2000; 113 ( Pt 10):1671-6. DOI: 10.1242/jcs.113.10.1671. View

5.
Corbin J, Turko I, Beasley A, Francis S . Phosphorylation of phosphodiesterase-5 by cyclic nucleotide-dependent protein kinase alters its catalytic and allosteric cGMP-binding activities. Eur J Biochem. 2000; 267(9):2760-7. DOI: 10.1046/j.1432-1327.2000.01297.x. View