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1.
Chinese Pharmacological Bulletin ; (12): 833-838, 2023.
Artigo em Chinês | WPRIM | ID: wpr-1013910

RESUMO

Aim To investigate the induction of ferroptosis of Triapine in non-small cell lung cancer cells A549, and its mechanism. Methods The effects of Triapine on the proliferation of A549 cells were assessed by MTT assay and colony formation assay; the effect of intracellular ROS levels of Triapine treated A549 cells was studied by DCFH-DA probe; the intracellular glutathione (GSH) and lipid peroxides (LPO) levels of A549 cells were detected by the kits after treating with Triapine; the effects of Triapine on the expression of glutathione peroxidase 4 (GPX4) in A549 cells were analyzed by Western blot; the changes of GPX4 level and cell viability were evaluated for the cells intervened with ROS inhibitor. Results Triapine could inhibit the proliferation of A549 cells, and the IC

2.
Chinese Journal of Clinical Pharmacology and Therapeutics ; (12): 729-737, 2021.
Artigo em Chinês | WPRIM | ID: wpr-1014993

RESUMO

AIM: To investigate the role of ribonucleotide reductase M2 (RRM2) in 5-fluorouracil (5-FU) resistance of HCC cells and to develop potential strategies to enhance the sensitivity of HCC cells to 5-FU. METHODS: The expression of RRM2 was examined by Western blot in BEL/5-FU cells and BEL7402 cells. The expression of RRM2 was down-regulated through RNA interference (RNAi) technology and the activity of RRM2 was inhibited by the RRM2 inhibitor 3-AP. The cell proliferation ability was detected by CCK-8 assay and colony formation assay, and the apoptosis was analyzed by Confocal high-content system. RESULTS: The expression level of RRM2 was increased by 2.5-fold in BEL/5-FU cells compared with BEL7402 cells. Compared with control siRNA, the half maximum inhibitory concentration IC

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