Promoter-mediated, dexamethasone-induced increase in cystatin C production by HeLa cells
Cystatin C, an efficient inhibitor of cysteine proteinases, is present in all investigated human extracellular fluids. Dexamethasone caused a significant and dose-dependent increase in the cystatin C secretion of cultivated HeLa cells up to a maximal increase of 80% at 10(-6) mol l-1 dexamethasone. Increased production of cystatin C was also observed at lower concentrations, suggesting that glucoc