Abstract
PurposeLung cancer is the deadliest tumor in the world. This study aimed to investigate the effection of USP8 on the proliferation and growth of NSCLC cells.MethodsThe proliferation, migration, invasion, cell cycle progression, and apoptosis of A549 and H1299 cells were evaluated with CCK8, colony formation, scratch, transwell, and flow cytometry experiments. Furthermore, the expression of cell cycle- and apoptosis-related proteins was detected by western blot.ResultsKnockdown of USP8 inhibited the proliferation, migration, invasion, and cell cycle progression of A549 and H1299 cells, and promoted the apoptosis. The results of western blot indicated that knockdown of USP8 down-regulated the expression of Cyclin D1, CDK4, CDK6, p-AKT, and Bcl2, and up-regulated the expression of Bax.ConclusionKnockdown of USP8 inhibited the proliferation of human lung cancer cells by regulating cell cycle- and apoptosis-related proteins. USP8 may be a therapeutic target for lung cancer.
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