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Chemiluminescence-based Assays for Detection of Nitric Oxide and its Derivatives from Autoxidation and Nitrosated Compounds
Published on: February 16, 2022
S-nitrosylation in cardiovascular signaling.
Brian Lima1, Michael T Forrester, Douglas T Hess
1Department of Surgery, Duke University Medical Center, Durham, NC, USA.
Circulation Research
|March 6, 2010
Summary
Nitric oxide (NO) primarily functions via S-nitrosylation, a modification of proteins. This process is crucial for NO
Area of Science:
- Biochemistry
- Molecular Biology
- Physiology
Background:
- Nitric oxide (NO), initially identified as endothelium-derived relaxation factor, has diverse biological roles.
- While soluble guanylyl cyclase (cGMP) was the first NO receptor, many NO effects are now known to be cGMP-independent.
- S-nitrosylation, the covalent modification of protein thiols by NO, is a key mechanism mediating NO's actions.
Purpose of the Study:
- To review the fundamental biochemistry of S-nitrosylation and denitrosylation.
- To discuss the critical role of S-nitrosylation in NO's vascular and cardiac functions.
- To identify current and potential clinical applications of S-nitrosylation.
Main Methods:
- Literature review of S-nitrosylation biochemistry.
- Analysis of studies on NO signaling pathways.
- Exploration of clinical research related to NO and S-nitrosylation.
Main Results:
- S-nitrosylation is a major pathway for NO signaling, independent of cGMP.
- S-nitrosylated proteins (SNOs) act as crucial second messengers and signal effectors.
- S-nitrosylation is implicated in nearly all cardiovascular functions of NO.
Conclusions:
- S-nitrosylation is central to NO biology, particularly in the cardiovascular system.
- Understanding S-nitrosylation biochemistry is key to elucidating NO's diverse functions.
- Targeting S-nitrosylation pathways offers potential for novel clinical interventions.
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