The overexpression of Bcl-2 antagonizes the proapoptotic function of the kappa-opioid receptor.

Autor: Wong N; Department of Biochemistry, Faculty of Medicine, University of Hong Kong, Hong Kong. nswong@hkucc.hku.hk, Diao CT, Wong T
Jazyk: angličtina
Zdroj: Annals of the New York Academy of Sciences [Ann N Y Acad Sci] 2003 Dec; Vol. 1010, pp. 358-60.
DOI: 10.1196/annals.1299.066
Abstrakt: Opioid receptors are G-protein-coupled cell-surface receptors that are mainly expressed in neuronal cells. Stimulation of the kappa-opioid receptor expressed by cultured human epithelial cancer cells promotes staurosporine-induced apoptosis. In this study, while Bcl-2 did not inhibit staurosporine-induced apoptosis, it did inhibit the kappa-opioid receptor-mediated potentiation of apoptosis. The results suggest that Bcl-2 targets a step that is specific to the signaling pathway of the kappa-opioid receptor.
Databáze: MEDLINE