Basic Researches
Long noncoding RNA PTENP1 inhibits proliferation and migration of hepatocellular carcinoma cells
Zhiyong Xiong, Zhicheng Yao, Weiming Fan, Mingliang Li, Kunpeng Hu, Jianliang Xu, Yuesi Zhong, Ruiyun Xu, Meihai Deng
Published 2016-04-10
Cite as Chin J Hepat Surg(Electronic Edition), 2016, 05(2): 119-123. DOI: 10.3877/cma.j.issn.2095-3232.2016.02.013
Abstract
ObjectiveTo investigate the effect and mechanism of long noncoding RNA (lncRNA) PTEN pseudogene 1 (PTENP1) on the proliferation and migration of hepatocellular carcinoma (HCC) cells.
MethodsLentiviral vectors expressing PTENP1 were constructed. HCC cells BEL-7404 were infected with LV003-GFP-PTENP1 and control vectors LV003-GFP. BEL-7404 cells stably expressing PTENP1 were constructed and the experimental and control groups were established. The proliferation and clone formation abilities of HCC cells in two groups were detected by CCK-8 assay and clonogenic assay. The migration ability of HCC cells was detected by wound healing assay. The expression of p44/42 mitogen-activated protein kinase (MAPK) and p38 MAPK proteins were detected by Western blot.
ResultsThe absorbance values A450 of the cells at 48 and 72 h in the experimental group were 1.4±0.3 and 2.3±1.1, significantly lower compared with 3.2±1.7 and 3.4±1.1 in the control group (t=-5.78,-4.23; P<0.05). The number of cell clone formation in the experimental group was 55±12, significantly less than 154±45 in the control group (t= -3.98, P<0.05). The percentage of cell migration in the experimental group was (21.7±2.6)%, significantly lower than (57.7±4.9)% in the control group (t=-8.34, P<0.05). Western blot revealed that the expression of p44/42 MAPK and p38 MAPK proteins in the experimental group was significantly down-regulated compared with those in the control group.
ConclusionlncRNA PTENP1 can inhibit the proliferation and migration of HCC cells probably through regulating MAPK signaling pathway.
Key words:
Ribonucleases; Long non-coding RNA; PTENP1; Liver neoplasms
Contributor Information
Zhiyong Xiong
Department of Hepatobiliary Surgery, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou 510630, China
Zhicheng Yao
Department of General Surgery, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou 510630, China
Weiming Fan
Department of Hepatobiliary Surgery, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou 510630, China
Mingliang Li
Intensive Care Unit, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou 510630, China
Kunpeng Hu
Department of General Surgery, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou 510630, China
Jianliang Xu
Department of Hepatobiliary Surgery, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou 510630, China
Yuesi Zhong
Department of Hepatobiliary Surgery, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou 510630, China
Ruiyun Xu
Department of Hepatobiliary Surgery, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou 510630, China
Meihai Deng
Department of Hepatobiliary Surgery, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou 510630, China