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Chinese Journal of Clinical Pharmacology and Therapeutics ›› 2014, Vol. 19 ›› Issue (5): 488-492.

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Adjusting autophagy to augment sensitivity of 5-FU in Bel-7402/FU cells

WANG Meng1, HUANG Can3, YANG Cui1, XIA Quan2 , XU Du-juan1,2   

  1. 1School of Pharmacy, Anhui Medical University, Hefei 230032 Anhui,China;
    2The First Affiliated Hospital of Anhui Medical University, Hefei 230032, Anhui, China;
    3Anqing Municipal Hospital, Anqing 246003, Anhui, China
  • Received:2014-01-23 Revised:2014-04-25 Online:2014-05-26 Published:2014-06-05

Abstract: AIM: To explore the effects of autophagy in the sensitivity of Hepatocellular carcinoma cells line Bel-7402/FU to 5-FU.METHODS: Hepatocellular carcinoma cells lines Bel-7402 and Bel-7402/FU were treated with 5-FU or 3-MA, or pretreated with 3-MA followed by 5-FU. MTT method test was used to determine the proliferative inhibition rate. Flow cytometry was used to examine cell apoptosis. The GFP-LC3B morphological changes were observed by fluorescent microscope.RESULTS: The IC50 values of 5-FU in Bel-7402 and Bel-7402/FU cells were 4.66 μg /mL and 68.14 μg /mL, respectively.The apoptosis rates of the Bel-7402 and Bel-7402/FU were 13.80% and 1.09%,respectively. When 5-FU was used combined with 3-MA, the IC50 values of 5-FU in Bel-7402 and Bel-7402/FU cells were 4.31 μg /mL and 29.44 μg /mL. The apoptosis rates of Bel-7402 and Bel-7402/FU were 13.82% and 6.86%, respectively. 3-MA decreased 5-FU-induced punctuate spot formation in Bel-7402/FU.CONCLUSION: Autophagy is connected with 5-FU-resistance and inhibition of autophagy can reverse 5-FU-resistance in Bel-7402 /FU.

Key words: autophagy, apoptosis, hepatocellular carcinoma, 3-MA, 5-FU

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