Welcome to Chinese Journal of Clinical Pharmacology and Therapeutics,Today is Chinese

Chinese Journal of Clinical Pharmacology and Therapeutics ›› 2017, Vol. 22 ›› Issue (4): 412-417.

Previous Articles     Next Articles

Effect of USP22 on gemcitabine chemoresistance in human pancreatic cancer cell

WANG Wanming, DONG Jiazhong, GUAN Shuming   

  1. Department of Gastroenterology, Puyang People's Hospital, Puyang 457000, Henan, China
  • Received:2017-02-04 Revised:2017-02-20 Online:2017-04-26 Published:2017-04-26

Abstract:

AIM: To evaluate the potential effect of  USP22 on gemcitabine chemoresistance in pancreatic cancer cells.  METHODS: USP22 expression was detected by Western blot in pancreatic cancer cell lines PANC-1 and SW1990 treated with gemcitabine. The IC50 values of different pancreatic cancer cells to gemcitabine were detected by cell counting kit 8 (CCK-8) assays. RESULTS: USP22 expression was induced by certain dose of gemcitabine treatment in pancreatic cancer cells. CCK-8 assay demonstrated that the IC50 values in SW1990-NC group and SW1990-shUSP22 group were (1 850.96±87.37) nmol/L and (534.83±49.68) nmol/L, respectively. Furthermore, the IC50 values in SW1990-NC, SW1990/Gem-NC and SW1990/Gem-shUSP22 groups were (1 387.58±96.56) nmol/L, (29 850.96±345.78) nmol/L and (2 157.08±120.32) nmol/L, respectively. CONCLUSION: Gemcitabine treatment increases the expression of USP22 in pancreatic cancer cells. Knock-down USP22 expression could enhance the chemosensitivity to gemcitabine in pancreatic cancer cells, but also rescue the gemcitabine resistance in pancreatic cancer cells.

Key words: USP22, pancreatic cancer, gemcitabine, resistance

CLC Number: