Beibei Liang, Rui Chen, Shaohua Song, Hao Wang, Guowei Sun, Hao Yang, Wei Jing, Xuyu Zhou, Zhiren Fu, Gang Huang, Jian Zhao
Cancer is, fundamentally, a disorder of cell growth and proliferation, which requires adequate supplies of energy and nutrients. In this study, we report that the haplo-insufficient tumor suppressor ASPP2, a p53 activator, negatively regulates the mevalonate pathway to mediate its inhibitory effect on tumor growth in hepatocellular carcinoma (HCC). Gene expression profile analysis revealed that the expression of key enzymes in the mevalonate pathway were increased when ASPP2 was downregulated. HCC cells gained higher cholesterol levels and enhanced tumor-initiating capability in response to the depletion of ASPP2...
November 4, 2019: Cell Death & Disease