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- W2912508713 abstract "Objective PD98059 is a potent and selective inhibitor of mitogen-activated protein kinase. Substantial preclinical evidence has shown an anti-tumor effect of curcumin on various solid tumors. This study aimed to investigate whether curcumin synergistically acts with PD98059 in exerting anti-gastric cancer effects. Methods The cell counting kit-8 assay was used to detect cell proliferation of the human gastric cancer MGC-803 cell line. Flow cytometry was performed to detect apoptosis. Western blotting was used to detect phosphatase and tensin homolog (PTEN) and phosphorylated Akt (p-Akt) expression levels. Quantitative reverse transcription-polymerase chain reaction was used to determine microRNA-21 (miR-21). Results A dose of 5 to 40 µM curcumin inhibited proliferation of MGC-803 cells in a dose- and time-dependent manner. A high dose of curcumin strongly inhibited p-Akt protein expression. With increasing curcumin levels, PTEN expression increased and miR-21 levels decreased. These results suggest that curcumin negatively modulated the miR-21/PTEN/Akt pathway. Moreover, after pretreatment with PD98059, cell apoptosis induced by curcumin was significantly increased. Additionally, the inhibitory effects of curcumin on the miR-21/PTEN/Akt pathway were significantly enhanced. Conclusion PD98059 combined with curcumin may be a potential strategy for managing gastric cancer." @default.
- W2912508713 created "2019-02-21" @default.
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- W2912508713 date "2019-02-06" @default.
- W2912508713 modified "2023-09-30" @default.
- W2912508713 title "Curcumin regulates the miR-21/PTEN/Akt pathway and acts in synergy with PD98059 to induce apoptosis of human gastric cancer MGC-803 cells" @default.
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- W2912508713 doi "https://doi.org/10.1177/0300060518822213" @default.
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