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G-protein signaling in iNOS gene expression
1College of Pharmacy, Seoul National University, Kwanak-gu, Seoul, South Korea.
Methods in Enzymology
|November 18, 2005
Summary
This study details a system for investigating cell signaling pathways that regulate inducible nitric oxide synthase (iNOS) gene expression. Understanding these pathways, involving G protein-coupled receptors (GPCRs), offers targets for treating vascular hyporeactivity.
Area of Science:
- Molecular Biology
- Cell Signaling
- Pharmacology
Background:
- Heterotrimeric G proteins act as key molecular switches in transmembrane signaling.
- Inducible nitric oxide synthase (iNOS) induction by inflammatory stimuli causes vascular hyporeactivity.
Purpose of the Study:
- To describe a system for studying cell signaling pathways downstream of G protein-coupled receptors (GPCRs).
- To investigate the role of these pathways in iNOS gene expression.
Main Methods:
- The chapter outlines a system for analyzing signaling cascades.
- Focuses on GPCRs and their downstream effectors.
Main Results:
- The described system facilitates the study of iNOS gene regulation.
- Identifies cellular signaling pathways involved in ligand-induced iNOS.
Conclusions:
- Cellular signaling pathways mediating iNOS induction are potential pharmacological targets.
- These targets may be useful for preventing or treating vascular hyporeactivity.