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01-10-2011 | Original Article

Silencing of the HCCR2 Gene Induces Apoptosis and Suppresses the Aggressive Phenotype of Hepatocellular Carcinoma Cells in Culture

Authors: Jun Guo, Liuqin Yang, Yafei Zhang, Jun Wang, Shunmei Wan, Shihai Xia, Shiming Yang, Rongquan Wang, Dianchun Fang

Published in: Journal of Gastrointestinal Surgery | Issue 10/2011

Abstract

Background

The human cervical cancer oncogene HCCR-2 is overexpressed in various malignant tumors and cell lines, and might function as a negative regulator of the p53 tumor suppressor. Here, we used RNA interference strategies to evaluate the role of HCCR-2 in liver cancer, and to explore its potential therapeutic effect.

Methods

Changes of HepG2 cells stably transfected by an HCCR-2 RNA interference vector were detected by real-time PCR, MTT staining, plate colony formation, flow cytometry, and cell migration experiments. Apoptosis-related protein Bcl-2 and Bax levels were measured by Western blot.

Results

Our results showed that of the three siRNA-expressing vectors, siRNA-H3 had a suppressive effect on the expression of HCCR-2 mRNA, interfering with proliferation and migration of HCCR-2. Moreover, the apoptotic rate also increased, and cells transfected by siRNA-H3 were blocked in the G0/G1 stage. Plate colony formation experiments demonstrated that the single cell clone formation capacity of HepG2-H3 cells was clearly lower than that of HepG2 and HepG2-N cells. Western blot results indicated that the expression of Bcl-2 was inhibited, and the expression of Bax was increased.

Conclusions

In summary, RNAi targeting HCCR-2 could be an effective means for suppressing malignant features of hepatocellular carcinoma cells.

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Title: Silencing of the HCCR2 Gene Induces Apoptosis and Suppresses the Aggressive Phenotype of Hepatocellular Carcinoma Cells in Culture
Authors: Jun Guo
Liuqin Yang
Yafei Zhang
Jun Wang
Shunmei Wan
Shihai Xia
Shiming Yang
Rongquan Wang
Dianchun Fang
Publication date: 01-10-2011
Publisher: Springer-Verlag
Published in: Journal of Gastrointestinal Surgery / Issue 10/2011
Print ISSN: 1091-255X
Electronic ISSN: 1873-4626
DOI: https://doi.org/10.1007/s11605-011-1633-4

At a glance: The STEP trials

Springer Medicine

Silencing of the HCCR2 Gene Induces Apoptosis and Suppresses the Aggressive Phenotype of Hepatocellular Carcinoma Cells in Culture

Abstract

Background

Methods

Results

Conclusions

At a glance: The STEP trials

Springer Medicine

Abstract

Background

Methods

Results

Conclusions

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