The modifier subunit of glutamate cysteine ligase (GCLM) is a molecular target for amelioration of cisplatin resistance in lung cancer
- Authors:
- Published online on: November 1, 2003 https://doi.org/10.3892/ijo.23.5.1333
- Pages: 1333-1339
Metrics: Total
Views: 0 (Spandidos Publications: | PMC Statistics: )
Total PDF Downloads: 0 (Spandidos Publications: | PMC Statistics: )
Abstract
It is unclear whether a subunit of glutamate cysteine ligase [a modifier subunit (GCLM) and a catalytic subunit (GCLC)] is an effective target for ameliorating cisplatin (CDDP)-resistance. We inhibited each subunit of GCL mRNA using a specific ribozyme (M-Rz and C-Rz) in the pulmonary adenocarcinoma cell line A549. GCL activity was suppressed by the ribozyme. CDDP-resistance was more effectively ameliorated when GCLM rather than GCLC was inhibited. GCLM is a potentially more effective pharmacologic target for ameliorating CDDP-resistance in non-small cell lung cancer than GCLC.