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Nicotinamide N-oxides as CXCR2 antagonists.
N S Cutshall1, R Ursino, K A Kucera
1Department of Chemistry, Celltech R&D, Inc., 1631 220th Street SE, 98021, Bothell, WA, USA. neil.cutshall@celltechgroup.com
Bioorganic & Medicinal Chemistry Letters
|July 19, 2001
Summary
Novel nicotinamide N-oxides are potent CXCR2 receptor antagonists. These compounds effectively inhibit neutrophil chemotaxis, suggesting potential for treating inflammatory and autoimmune diseases.
Area of Science:
- Medicinal Chemistry
- Pharmacology
- Immunology
Background:
- The CXCR2 receptor plays a key role in neutrophil recruitment during inflammation.
- Dysregulated neutrophil activity is implicated in various inflammatory, autoimmune, and allergic conditions.
Purpose of the Study:
- To synthesize and characterize novel nicotinamide N-oxide derivatives.
- To evaluate the antagonist activity of these compounds against the CXCR2 receptor.
- To assess their functional efficacy in inhibiting neutrophil chemotaxis.
Main Methods:
- Synthesis of a series of nicotinamide N-oxide compounds.
- In vitro evaluation of CXCR2 receptor antagonist activity.
- Assessment of functional activity in human neutrophil chemotaxis assays stimulated by GRO-alpha.
Main Results:
- A novel series of nicotinamide N-oxides were successfully synthesized.
- These compounds demonstrated potent and selective antagonism of the CXCR2 receptor.
- Significant inhibition of GRO-alpha-driven human neutrophil chemotaxis was observed.
Conclusions:
- Nicotinamide N-oxides represent a promising new class of CXCR2 receptor antagonists.
- These compounds exhibit potent anti-inflammatory effects by modulating neutrophil migration.
- This class of molecules holds therapeutic potential for inflammatory, autoimmune, and allergic disorders.