长链非编码RNA在肝癌中作用的研究进展

MicroRNAs and long non-coding RNAs in digestive system malignancies

The mammalian transcriptome includes a large number of microRNAs (miRNAs) and long non-coding RNAs (lncRNAs). Some studies have reported that numerous kinds of miRNAs and lncRNAs have been implicated in playing key regulatory roles in the occurrence and development of digestive system malignances. Therefore, they are closely related to the clinical diagnosis, treatment and prognosis of digestive system malignances. This review focuses on the recent progress in research of miRNAs and lncRNAs in in digestive system malignancies and discusses their epigenetics roles as oncogenes or tumor suppressors. The current and future potential clinical applications of miRNAs and lncRNAs in digestive system malignancies are also discussed, with an aim to provide new ideas and means for the diagnosis, treatment and prognosis of digestive system malignancies.

Clinical significance of BANCR expression in hepatocellular carcinoma

AIM: To examine the expression of BANCR, E-cadherin and Vimentin in hepatocellular carcinoma (HCC) and to analyze their relationship with clinicopathological status of HCC patients.

METHODS: The expression of BANCR was studied in 108 HCC tissues and adjacent non-tumor tissues by using quantitative real-time-PCR, and its correlation with clinical parameters was analyzed. E-cadherin (an epithelial biomarker) and Vimentin (a mesenchymal biomarker) expression was evaluated by immunocytochemistry.

RESULTS: BANCR expression in HCC tissues was significantly increased compared with that in adjacent non-tumor tissues (P < 0.05). High expression of BANCR was associated with lymph node metastasis (P = 0.001) and TNM stage (P = 0.000), but not with age, gender, tumor size, α-fetoprotein, Edmondson-Steiner grade, tumor number, or vascular invasion (P > 0.05). There was an inverse correlation between BANCR and E-cadherin expression and a positive correlation between BANCR and Vimentin expression in HCC tissues.

CONCLUSION: BANCR is highly expressed in HCC tissues and it may play crucial roles in the invasion and metastasis of HCC. BANCR expression is correlated with E-cadherin and Vimentin expression in HCC.