Published online May 28, 2014. doi: 10.3748/wjg.v20.i20.6314
Revised: April 25, 2014
Accepted: May 12, 2014
Published online: May 28, 2014
Core tip: Long non-coding RNAs (lncRNAs) possess prominent and diverse regulatory functions in cancer processes. In this study, the expression profiles of lncRNAs in hepatocellular carcinoma (HCC) were analyzed using a microarray-based method. One hundred and seventy-one lncRNAs were significantly downregulated and 488 were upregulated in HCC tissues. Validation was performed in 29 subjects with HCC using quantitative real-time polymerase chain reaction and the expressions of four lncRNAs were significantly downregulated in HCC, whereas the expression of lncRNA MALAT1 showed no significant difference. The same result was obtained in a subset of patients with hepatitis B virus-related HCC.