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Published on: June 18, 2015
Curcumin inhibits Ec109 cell growth via an AMPK-mediated metabolic switch
Feng-Juan Zhang1, Hong-Sheng Zhang1, Yang Liu1
1College of Life Science & Bioengineering, Beijing University of Technology, Pingleyuan 100(#), District of Chaoyang, Beijing 100124, China.
Aims:
Glycolytic enzymes are always greatly increased in cancer cells. Whether metabolic reprogramming is involved in curcumin-mediated inhibition of cancer cell growth is unknown.
Main Methods:
In this study, cell viability was assayed with MTS analysis; cell cycle was measured with flow cytometry analysis. RT-PCR and western blotting were used to analyse the mRNA and protein expression, respectively.
Key Findings:
Here we demonstrated that curcumin inhibited cancer cell growth, especially for Ec109 cells. Curcumin induced cell cycle arrest at G2/M phase. Curcumin caused a significant down-regulation of glycolytic enzymes expressions in a dose-dependent manner. Our results further indicated that the AMPK was required for curcumin-mediated down-regulation of glycolytic enzymes. AMPK-mediated down-regulation of glycolytic enzymes blocked Ec109 cell growth.
Significance:
Taken together, our results revealed that the AMPK-mediated metabolic switch plays an important role in esophageal cancer cell growth.
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