sdz-psc-833 and Astrocytoma

sdz-psc-833 has been researched along with Astrocytoma* in 1 studies

Other Studies

1 other study(ies) available for sdz-psc-833 and Astrocytoma

Article	Year
Effect of PSC 833, a potent inhibitor of P-glycoprotein, on the growth of astrocytoma cells in vitro. Cancer letters, 2003, Jul-30, Volume: 198, Issue:1 Malignant astrocytomas have been found to express P-glycoprotein (Pgp, mdr1 gene product). It was hypothesized that in addition to conferring multidrug resistance, Pgp is intimately associated with the development of astrocytomas. Accordingly, we studied the effect of PSC 833 (PSC, Novartis), a potent inhibitor of Pgp, on the growth of Pgp-expressing astrocytoma cells. The results showed that in all the cell lines tested, PSC (10-60 microM) inhibited the growth as well as induced cell death. Cells exposed to PSC exhibited DNA ladder characteristic of apoptosis. PSC-induced cell death could be reversed by Z-VAD-fmk, a general caspase inhibitor, indicating that PSC-induced cell death was characteristic of caspase-mediated apoptosis. These results suggest a novel therapeutic strategy in the treatment of malignant astrocytomas by inhibitors of Pgp. Topics: Amino Acid Chloromethyl Ketones; Apoptosis; Astrocytoma; ATP Binding Cassette Transporter, Subfamily B, Member 1; Brain Neoplasms; Caspases; Cyclosporins; Cysteine Proteinase Inhibitors; Humans; Tumor Cells, Cultured	2003

Article

Year

Effect of PSC 833, a potent inhibitor of P-glycoprotein, on the growth of astrocytoma cells in vitro.

Cancer letters, 2003, Jul-30, Volume: 198, Issue:1

Malignant astrocytomas have been found to express P-glycoprotein (Pgp, mdr1 gene product). It was hypothesized that in addition to conferring multidrug resistance, Pgp is intimately associated with the development of astrocytomas. Accordingly, we studied the effect of PSC 833 (PSC, Novartis), a potent inhibitor of Pgp, on the growth of Pgp-expressing astrocytoma cells. The results showed that in all the cell lines tested, PSC (10-60 microM) inhibited the growth as well as induced cell death. Cells exposed to PSC exhibited DNA ladder characteristic of apoptosis. PSC-induced cell death could be reversed by Z-VAD-fmk, a general caspase inhibitor, indicating that PSC-induced cell death was characteristic of caspase-mediated apoptosis. These results suggest a novel therapeutic strategy in the treatment of malignant astrocytomas by inhibitors of Pgp.

Topics: Amino Acid Chloromethyl Ketones; Apoptosis; Astrocytoma; ATP Binding Cassette Transporter, Subfamily B, Member 1; Brain Neoplasms; Caspases; Cyclosporins; Cysteine Proteinase Inhibitors; Humans; Tumor Cells, Cultured

2003