title: Expression and roles of fatty acid synthase in hepatocellular carcinoma.
abstract: Cell metabolism abnormalities are closely related to tumor occurrence and development. Fatty acid synthase (FASN) is the key molecule for catalyzing fatty acid synthesis. Increasing evidence indicates that FASN is highly expressed in a number of malignant tumors; it can promote the synthesis of endogenous fatty acids in tumor cells and then the synthesized fatty acids provide energy for the proliferation of tumor cells. However, there has been no systematic study focusing on FASN expression and function in hepatocellular carcinoma (HCC). The aim of the present study was to verify the high expression of FASN in HCC cells at the histological and cellular levels, and to construct FASN shRNA eukaryotic expression vector for interfering FASN expression in HCC cell line SK-Hep-1, in an effort to explore the role of FASN in the proliferation, apoptosis, invasion and migration of HCC cells. In the present study, we demonstrated that FASN was highly expressed in HCC tissues compared with tumor-adjacent tissue and normal liver cell line 7702 (P<0.05). FASN expression in the high metastatic MHCC97H and SK-Hep-1 cell lines was increased compared with low metastatic HCC cell lines (P<0.05). Then, we constructed a FASN shRNA eukaryotic expression vector; after HCC SK-Hep-1 cells were transfected, the cell proliferation, migration and invasion were inhibited, but FASN had no impact on the apoptosis of HCC cells. Collectively, these data indicate that FASN is possibly involved in the occurrence and metastasis of HCC. Thus, inhibition of FASN may be a promising approach for the treatment of HCC.
authors.affiliation: Department of Hepatobiliary Surgery, Second Hospital of Yulin City, Yulin, Shaanxi 719000, P.R. China.
authors.forename: Qiwei
authors.initials: Q
authors.lastname: Hao
authors.affiliation: Department of Hepatobiliary Surgery, Second Hospital of Yulin City, Yulin, Shaanxi 719000, P.R. China.
authors.forename: Tao
authors.initials: T
authors.lastname: Li
authors.affiliation: Department of Hepatobiliary Surgery, Second Hospital of Yulin City, Yulin, Shaanxi 719000, P.R. China.
authors.forename: Xiong
authors.initials: X
authors.lastname: Zhang
authors.affiliation: Department of Hepatobiliary Surgery, Second Hospital of Yulin City, Yulin, Shaanxi 719000, P.R. China.
authors.forename: Ping
authors.initials: P
authors.lastname: Gao
authors.affiliation: Department of Hepatobiliary Surgery, Second Hospital of Yulin City, Yulin, Shaanxi 719000, P.R. China.
authors.forename: Peiyu
authors.initials: P
authors.lastname: Qiao
authors.affiliation: Department of Hepatobiliary Surgery, Second Hospital of Yulin City, Yulin, Shaanxi 719000, P.R. China.
authors.forename: Sheng
authors.initials: S
authors.lastname: Li
authors.affiliation: Department of Hepatobiliary Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, College of Medicine, Xi'an, Shaanxi 710061, P.R. China.
authors.forename: Zhimin
authors.initials: Z
authors.lastname: Geng
mesh_terms: D017209:Apoptosis; D006528:Carcinoma, Hepatocellular / Q000201:enzymology*; D045744:Cell Line, Tumor; D002465:Cell Movement; D049109:Cell Proliferation; D054890:Fatty Acid Synthase, Type I / Q000235:genetics / Q000378:metabolism*; D005260:Female; D015870:Gene Expression; D055785:Gene Knockdown Techniques; D006801:Humans; D008113:Liver Neoplasms / Q000201:enzymology*; D008297:Male
chemical_list: C518729:FASN protein, human; D054890:Fatty Acid Synthase, Type I