PDCD5 expression predicts a favorable outcome in patients with hepatocellular carcinoma

Fu,Da-Zhi; Cheng,Ying; He,Hui; Liu,Hai-Yang; Liu,Yong-Feng

doi:10.3892/ijo.2013.1993

PDCD5 expression predicts a favorable outcome in patients with hepatocellular carcinoma

Authors:
- Da-Zhi Fu
- Ying Cheng
- Hui He
- Hai-Yang Liu
- Yong-Feng Liu
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Affiliations: Department of General Surgery, First Affiliated Hospital of China Medical University, Shenyang 110001, Liaoning, P.R. China
Published online on: June 26, 2013 https://doi.org/10.3892/ijo.2013.1993
Pages: 821-830

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Abstract

Liver cancer in men is the fifth most frequently diagnosed cancer worldwide. Programmed cell death 5 (PDCD5) is an apoptosis related gene and plays an important role in the pathogenesis and development of cancer. In this study, we confirmed that the levels of PDCD5 mRNA and protein were lower in hepatocellular carcinoma (HCC) tissue compared to normal tissue. PDCD5 expression was significantly associated with HBV infection, tumor number, lymph node metastasis and the survival time of the patients with HCC. In addition, the serum levels of PDCD5 and AFP in the patients were significantly positively correlated. We also confirmed that upregulation of PDCD5 was able to inhibit cell proliferation and mobility, induce apoptosis and G1 arrest. Interestingly, PDCD5 also inhibited proteasome activity similarly to the proteosome inhibitor MG132. PDCD5 could be considered as a reliable marker of favorable prognosis of HCC patients.

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