Xiao-Jun Guo, Xiao-Yong Huang, Xuan Yang, Jia-Cheng Lu, Chuan-Yuan Wei, Chao Gao, Yan-Zi Pei, Yi Chen, Qi-Man Sun, Jia-Bin Cai, Jian Zhou, Jia Fan, Ai-Wu Ke, Yujiang G Shi, Ying-Hao Shen, Peng-Fei Zhang, Guo-Ming Shi, Guo-Huan Yang
Multidrug resistance is a major challenge in treating advanced hepatocellular carcinoma (HCC). Although recent studies have reported that the multidrug resistance phenotype is associated with abnormal DNA methylation in cancer cells, the epigenetic mechanism underlying multidrug resistance remains unknown. Here, we reported that the level of 5-hydroxymethylcytosine (5-hmC) in human HCC tissues was significantly lower than that in adjacent liver tissues, and reduced 5-hmC significantly correlated with malignant phenotypes, including poor differentiation and microvascular invasion; additionally, loss of 5-hmC was related to chemotherapy resistance in post-transplantation HCC patients...
February 2, 2023: Cell Death & Disease