ASIA unversity:Item 310904400/16210
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    题名: Targeted hepatocellular carcinoma proapoptic BikDD gene therapy.
    作者: 李龍緣;Li, Long-Yuan;Sher, Y-P.,;洪明奇;Hung, Mien-Chie
    贡献者: 生物科技學系
    关键词: liver cancer;a-fetoprotein;non-viral gene therapy;VISA
    日期: 2011
    上传时间: 2012-11-23 17:09:58 (UTC+8)
    摘要: Hepatocellular carcinoma (HCC), the third leading cause of cancer death in the world, is the most general type of primary liver cancer. Although current treatment modalities, such as liver transplantation, resection, percutaneous ablation, transarterial embolization, chemotherapy and radiotherapy are potentially curative, these methods are not universally applicable to all of HCC patients, especially for those with poor prognosis in which no effective remedy is available. Therefore, development of novel therapeutic approach for the treatment of HCC is urgently needed. In the current study, we developed a promising HCC-targeted gene therapy vector driven by liver cancer-specific α-fetoprotein promoter/enhancer coupled to an established platform technology. The activity of this expression vector is comparable with or even higher than that of strong cytomegalovirus (CMV) promoter and exhibits strong promoter activity in liver cancer cells/tumors, but has nearly no or very low activity in normal cells/organs in vitro and in orthotopic animal models in vivo. Its cancer specificity exceeds that of the CMV promoter, which expresses non-specifically in both normal and tumor cells. In addition, targeted expression of a therapeutic BikDD, a mutant of proapoptotic gene Bik effectively and preferentially killed liver cancer cells, but not normal cells and significantly repressed growth of HCC tumors, and prolonged survival in multiple xenograft and syngeneic orthotopic mouse models of HCC through intravenous systemic gene delivery. Importantly, systemic administration of BikDD by our expression vector exerted no systemically acute toxicity compared with CMV-BikDD in mice. Taken together, this study elucidates a relatively safe and highly effective and specific systemic gene therapy strategy for liver cancer, and is worthy of further development for future clinical trials.[ABSTRACT FROM AUTHOR]
    關聯: ONCOGENE
    显示于类别:[生物科技學系] 期刊論文

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