Abstract
Incubation of primary cultures of fetal hepatocytes with lipopolysaccharide (LPS) elicited the expression of nitric oxide (NO) synthetase as well as antagonized the apoptotic cell death evoked by treating the cells with transforming growth factor beta 1 (TGF-beta 1). In addition to LPS, exposure of the cells to chemical NO donors also protected against apoptotic cell death when assayed at concentrations in the low micromolar range. Treatment of hepatocytes with large concentrations of NO donors promoted both apoptotic and necrotic cell death. These results suggest that NO synthesis by hepatocytes might be involved in the protection against apoptotic death. (Hepatology 1996 May;23(5):1200-7)
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