부산대학교 도서관

Liping Lei,1,2,* Jingjing Yang,1,* Hao Peng,1 Ruiyan Huang,1 Lichun Liang,1 Ruifang Liu,1 Jiangfa Li1 1Department of Hepatobiliary and Pancreatic Surgery, The Affiliated Hospital of Guilin Medical University, Guilin, 541001, People’s Republic of China; 2Department of Geriatric Medicine, The Affiliated Hospital of Guilin Medical University, Guilin, 541001, People’s Republic of China*These authors contributed equally to this workCorrespondence: Jiangfa Li, Department of Hepatobiliary and Pancreatic Surgery, The Affiliated Hospital of Guilin Medical University, Guilin, 541001, People’s Republic of China, Tel +86-7732824373, Email 247546160@qq.comBackground: Abnormal expression of genes causes tumorigenesis, tumor progression, and poor prognosis in hepatocellular carcinoma (HCC). Therefore, the aims of this study were to explore the transcription enhancer domain factor 4 (TEAD4) in patients with liver cancer and its relationship with prognosis.Methods: HTSeq-FPKM data and corresponding clinical data of HCC patients were obtained from The Cancer Genome Atlas (TCGA). Difference in TEAD4 expression between normal and tumor and the correlation with clinical characteristics were analyzed by the chi-squared test based on UALCAN. HepG2 cell lines were used to study the effect of TEAD4 on HCC cell lines. The expression and clinical significance of TEAD4 in HCC were detected in clinical cases.Results: The transcription and post-transcription levels of TEAD4 were higher in HCC tumors than normal illustrated different expressed transcription of TEAD4 in gender, nodal metastasis status, tumor grades, and individual cancer stages. The high TEAD4 expression was significantly associated with tumor grades. The high expression of TEAD4 was significantly correlated to shorter 2– 5 years overall survival. Inhibition of TEAD4 expression in HepG2 cells resulted in significantly decreased cell proliferation and invasion.Conclusion: TEAD4 was identified as an independent prognostic factor, and inhibition of TEAD4 expression in HepG2 cells resulted in significantly decreased cell proliferation and invasion.Keywords: TCGA, TEAD4, hepatocellular carcinoma