The axon guidance cues netrin-1 has been reported to be associated with cancer progression in various types of human cancers. However, the underlying molecular mechanism of netrin-1-mediated metastasis remains obscure. In this study, we found that overexpression of netrin-1 promoted HCC cell migration and invasion as determined by transwell assay and 3D cell culture assay. However, netrin-1 knockdown inhibited these processes. Further investigation indicated that netrin-1 decreased the expression of Blood Vessel Epicardial Substance (BVES), which was down-regulated in HCC. Interestingly, LY294002, a special inhibitor to PI3K/AKT signaling which was determined as a downstream pathway of netrin-1, restored the reduction in BVES caused by netrin-1. In addition, BVES exhibited an opposite effect on HCC cell metastasis to that of netrin-1. Importantly, up-regulating BVES expression significantly attenuated netrin-1-enhanced migration and invasion, whereas silencing BVES expression rescued the metastatic phenotype in netrin-1 knockdown cells. Moreover, netrin-1 expression was negatively correlated with BVES in HCC tissues and cell lines with different metastatic potential. Taken together, these results reveal that netrin-1 promotes HCC cell metastasis by regulating BVES expression via AKT activation.
基金:
National Natural Science Foundation of China [81472311, 81401992, 81270507]; Fundamental Research Funds for the Central Universities [2014ZHYX020, 2014TS077]; SRF for ROCS, SEM [2014-1685]; Hubei Province health and family planning scientific research project [WJ2015Q006]
第一作者单位:[1]Huazhong Univ Sci & Technol, Tongji Med Coll, Dept Gastroenterol, Tongji Hosp, Wuhan 430030, Peoples R China
通讯作者:
通讯机构:[1]Huazhong Univ Sci & Technol, Tongji Med Coll, Dept Gastroenterol, Tongji Hosp, Wuhan 430030, Peoples R China[*1]Huazhong Univ Sci & Technol, Tongji Med Coll, Dept Gastroenterol, Tongji Hosp, 1095 Jiefang Ave, Wuhan 430030, Peoples R China
推荐引用方式(GB/T 7714):
Han Ping,Fu Yu,Liu Jingmei,et al.Netrin-1 promotes cell migration and invasion by down-regulation of BVES expression in human hepatocellular carcinoma[J].AMERICAN JOURNAL OF CANCER RESEARCH.2015,5(4):1396-1409.
APA:
Han, Ping,Fu, Yu,Liu, Jingmei,Wang, Yunwu,He, Jiayi...&Yan, Wei.(2015).Netrin-1 promotes cell migration and invasion by down-regulation of BVES expression in human hepatocellular carcinoma.AMERICAN JOURNAL OF CANCER RESEARCH,5,(4)
MLA:
Han, Ping,et al."Netrin-1 promotes cell migration and invasion by down-regulation of BVES expression in human hepatocellular carcinoma".AMERICAN JOURNAL OF CANCER RESEARCH 5..4(2015):1396-1409