Abstract
This study aimed to explore the molecular mechanism of LCN2 regulating aerobic glycolysis on abnormal proliferation of HCC cells. Based on the prediction of GEPIA database, the expression levels of LCN2 in hepatocellular carcinoma tissues were detected by RT-qPCR analysis, western blot, and immunohistochemical staining, respectively. In addition, CCK-8 kit, clone formation, and EdU staining were used to analyze the effect of LCN2 on the proliferation of hepatocellular carcinoma cells. Glucose uptake and lactate production were detected using kits. In addition, western blot was used to detect the expressions of aerobic glycolysis-related proteins. Finally, western blot was used to detect the expressions of phosphorylation of JAK2 and STAT3. We found LCN2 was upregualted in hepatocellular carcinoma tissues. CCK-8 kit, clone formation, and EdU staining results showed that LCN2 could promote the proliferation in hepatocellular carcinoma cells (Huh7 and HCCLM3 cells). Western blot results and kits confirmed that LCN2 significantly promotes aerobic glycolysis in hepatocellular carcinoma cells. Western blot results showed that LCN2 could significantly upregulate the phosphorylation of JAK2 and STAT3. Our results indicated that LCN2 activated the JAK2/STAT3 signaling pathway, promoted aerobic glycolysis, and accelerated malignant proliferation of hepatocellular carcinoma cells.
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