Cell Physiol Biochem . 2016;38(2):836-46. doi: 10.1159/000443038. Epub 2016 Feb 24.

Upregulation of Long Non-Coding RNA PlncRNA-1 Promotes Metastasis and Induces Epithelial-Mesenchymal Transition in Hepatocellular Carcinoma

Liyang Dong  1 Junwei NiWenhao HuChang YuHaiyan Li

Affiliation

  • 1 Department of Invasive Technology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, PR China.

Abstract

Background/aims: PlncRNA-1 has been demonstrated to promote malignancy in various cancers. The present study aims to investigate the expression pattern, prognosis value and the function of PlncRNA-1 in human hepatocellular carcinoma (HCC).

Methods: The expression of PlncRNA-1 in 84 pairs of HCC and their matched normal tissues was examined by quantitative real-time polymerase chain reaction (qRT-PCR). The correlations of PlncRNA-1 expression and clinicopathological characteristics and prognosis were also analyzed. The biological role of PlncRNA-1 in cell proliferation, migration and invasion was examined in vitro and in vivo.

Results: The results showed that the level of PlncRNA-1 expression was significantly increased in HCC tissues and significantly correlated with tumor size, vascular invasion and advanced TNM stage. Moreover, patients with high levels of PlncRNA-1 expression had relatively poor prognostic outcomes, serving as an independent prognostic factor for HCC. In vitro functional assays indicated that knockdown of PlncRNA-1 expression significantly reduced cell proliferation, migration and invasion by inhibiting the epithelial-mesenchymal transition (EMT) signaling. Animal model experiments confirmed the ability of PlncRNA-1 to promote tumor growth in vivo.

Conclusions: Taken together, our findings suggest that PlncRNA-1 may serve as an oncogene in HCC progression and represent a valuable prognostic marker and potential therapeutic target for HCC.

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