Journal
BMC CANCER
Volume 14, Issue -, Pages -Publisher
BMC
DOI: 10.1186/1471-2407-14-616
Keywords
Hepatocellular carcinoma; Invasion; MicroRNA-1246; CADM1
Categories
Funding
- National Natural Science Foundation of China [81101588, 30800429, 30911130363]
- 863 Projects of Ministry of Science and Technology of PR China [2011AA020100]
- National Key Scientific Program of China [2011CB964901]
- Program for Cheung Kong Scholars and Innovative Research Team in University-PCSIRT [IRT0909]
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Background: The aberrant expression of microRNAs has been demonstrated to play a crucial role in the initiation and progression of hepatocarcinoma. miR-1246 expression in High invasive ability cell line than significantly higher than that in low invasive ability cell line. Methods: Transwell chambers (8-uM pore size; Costar) were used in the in vitro migration and invison anssay. Dual luciferase reporter gene construct and Dual luciferase reporter assay to identify the target of miR-1246. CADM1 expression was evaluated by immunohistochemistric staining. The clinical manifestations, treatments and survival were collected for statistical analysis. Results: Inhibition of miR-1246 effectively reduced migration and invasion of hepatocellular carcinoma cell lines. Bioinformatics and luciferase reporter assay revealed that miR-1246 specifically targeted the 3'-UTR of Cell adhesion molecule 1 and regulated its expression. Down-regulation of CADM1 enhanced migration and invasion of HCC cell lines. Furthermore, in tumor tissues obtained from liver cancer patients, the expression of miR-1246 was negatively correlated with CADM1 and the high expression of miR-1246 combined with low expression of CADM1 might serve as a risk factor for stage1 liver cancer patients. Conclusions: Our study showed that miR-1246, by down-regulation CADM1, enhances migration and invasion in HCC cells.
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