Mechanisms of suppression of inducible nitric oxide synthase (iNOS) expression in interferon (IFN)-gamma-stimulated RAW 264.7 cells by dexamethasone. Evidence for glucocorticoid-induced degradation of iNOS protein by calpain as a key step in posttranscriptional regulation. - Walker ,G,.; Pfeilschifter ,J,.; Kunz ,D.. (J. Biol. Chem., 1997)