N-[3-(aminomethyl)benzyl]acetamidine (1400 W) as a potential immunomodulatory agent

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Abstract

This study was designed to investigate the relationship between NO, IL-12, and TNF-α production by J774A.1 macrophages activated with LPS and IFN-γ in the presence of N-[3-(aminomethyl)benzyl]acetamidine (1400 W). 1400 W is a novel, highly selective inhibitor of inducible nitric oxide synthase (iNOS). We compared the obtained data with the effect of NG- monomethyl-L-arginine (L-NMMA) (a nonselective NOS inhibitor) and L-N G-(1-iminoethyl)lysine (L-NIL) (a relatively selective inhibitor of iNOS activity) on cells in this model. To investigate the involvement of an exogenous NO on IL-12 and TNF-α production we used NO donor - S-nitrosocaptopril (S-NO-Cap). The most potent inhibitor of NO generation was 1400 W. This compound also markedly increased IL-12 p40 secretion and decreased TNF-α release. L-NIL suppressed both NO and TNF-α production, but it did not change IL-12 p40 synthesis. The effect of L-NMMA on NO generation was weaker than other inhibitors. Moreover, it decreased TNF-α secretion slightly but not significantly. IL-12 p40 production by stimulated cells was inhibited by S-NO-Cap in a dose dependent manner, but no effect on TNF-α release was observed. The potency and selectivity of 1400 W as an inhibitor of iNOS and cytokine release modifier are encouraging for therapeutic use. © 2014 Anna Mertas et al.

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Mertas, A., Duliban, H., Szliszka, E., Machorowska-Pienia̧zek, A., & Król, W. (2014). N-[3-(aminomethyl)benzyl]acetamidine (1400 W) as a potential immunomodulatory agent. Oxidative Medicine and Cellular Longevity, 2014. https://doi.org/10.1155/2014/491214

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