标题：lncRNA Ftx promotes aerobic glycolysis and tumor progression through the PPAR pathway in hepatocellular carcinoma
作者：Li, Xiao; Zhao, Qi; Qi, Jianni; Wang, Wenwen; Zhang, Di; Li, Zhen; Qin, Chengyong
作者机构：[Li, Xiao; Zhao, Qi; Wang, Wenwen; Zhang, Di; Li, Zhen; Qin, Chengyong] Shandong Univ, Shandong Prov Hosp, Dept Gastroenterol, 324 Jingwu Rd, Jinan 25 更多
通讯作者地址：[Qin, CY]Shandong Univ, Shandong Prov Hosp, Dept Gastroenterol, 324 Jingwu Rd, Jinan 250021, Shandong, Peoples R China.
来源：INTERNATIONAL JOURNAL OF ONCOLOGY
关键词：long non-coding RNA; aerobic glycolysis; hepatocellular carcinoma;; tumorigenesis; peroxisome proliferator-activated receptor
摘要：Aerobic glycolysis is a phenomenon by which malignant cells preferentially metabolize glucose through the glycolytic pathway, rather than oxidative phosphorylation to proliferate efficiently. The present study aimed to investigate the expression and functional implications of long non-coding (lnc)RNA Ftx in the aerobic glycolysis and tumorigenesis of hepatocellular carcinoma (HCC). It was identified that lncRNA Ftx was upregulated in human HCC tissues and cell lines and, notably, was associated with aggressive clinicopathological features. lncRNA Ftx overexpression promoted the proliferation, invasion and migration of HCC cells, whereas lncRNA Ftx knockdown resulted in the opposite effects. Furthermore, lncRNA Ftx affected the activity and expression of key enzymes in carbohydrate metabolism, suggesting that lncRNA Ftx may be involved in aerobic glycolysis in HCC. The measurement of glucose consumption, lactate production and glucose transporter expression further supported this assumption. Mechanistically, peroxisome proliferator-activated receptor (PPAR) expression in human HCC tissues and cell lines was positively correlated with lncRNA Ftx. Inhibiting PPAR in Huh7 cells partially abrogated the alterations in glucose uptake, lactate production and relative glycolytic enzyme expression induced by lncRNA Ftx; similarly, PPAR activation in Bel-7402 cells partially rescued the lncRNA Ftx-mediated alterations. In conclusion, lncRNA Ftx is a promoter of the Warburg effect and tumor progression, partly via the PPAR pathway, and may serve as a promising therapeutic target for HCC treatment.