4.6

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2.2

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  • ISSN 1674-8301
  • CN 32-1810/R
Xinting Pan, Liqun Wu, Jingyu Cao, Weidong Guo, Zusen Wang, Bing Han, Weiyu Hu. Recombinant adenovirus vector-mediated human MDA-7 gene transfection suppresses hepatocellular carcinoma growth in a mouse xenograft model[J]. The Journal of Biomedical Research, 2012, 26(1): 53-58. DOI: 10.1016/S1674-8301(12)60007-4
Citation: Xinting Pan, Liqun Wu, Jingyu Cao, Weidong Guo, Zusen Wang, Bing Han, Weiyu Hu. Recombinant adenovirus vector-mediated human MDA-7 gene transfection suppresses hepatocellular carcinoma growth in a mouse xenograft model[J]. The Journal of Biomedical Research, 2012, 26(1): 53-58. DOI: 10.1016/S1674-8301(12)60007-4

Recombinant adenovirus vector-mediated human MDA-7 gene transfection suppresses hepatocellular carcinoma growth in a mouse xenograft model

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This study was supported by grants from Shandong Province Postdoctoral Innovation Project Special Foundation (No. 201003048) and the Postdoctoral Science Foundation of China (No. 2011M500697).

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  • Received Date: October 09, 2011
  • Hepatocellular carcinoma is one of the most common tumors in the world. The purpose of the present study was to investigate the inhibitory effects of adenoviral transduction of human melanoma differentiation-associated gene-7 (MDA-7) gene on hepatocellular carcinoma, so as to provide a theoretical basis for gene therapy of the disease. The human MDA-7 gene was cloned into replication-defective adenovirus specific to HepG2 cells us-ing recombinant virus technology. RT-PCR and Western blotting assays were used to determine the expression of human MDA-7 mRNA and MDA-7 protein in HepG2 cells in vitro. Induction of apoptosis by overexpression of the human MDA-7 gene was determined by flow cytometry. In-vivo efficacy of adenoviral delivery of the hu-man MDA-7 gene was assessed in nude mice bearing HepG2 cell lines in vivo by determining inhibition of tumor growth, VEGF and CD34 expression, and microvascular density (MVD). The results showed that AdGFP/MDA-7 induced apoptosis of HepG2 cells in vitro and significantly inhibited tumor growth in vivo (P < 0.05). The intra-tumoral MVD decreased significantly in the treated tumors (P < 0.05). We conclude the recombination adenovirus AdGFP/MDA-7 can effectively express biologically active human MDA-7, which leads to inhibition of hepatocel-lular carcinoma growth.
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