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  • Title: [Adenovirus-mediated transfer of the herpes simplex virus thymidine rinase gene used by several methods].
    Author: Huang T, Gao G, Chen S.
    Journal: Zhonghua Wai Ke Za Zhi; 2002 Aug; 40(8):625-7. PubMed ID: 12417082.
    Abstract:
    OBJECTIVE: To investigate the therapeutic effects of adenovirus-mediated transfer of the herpes simplex virus thymidine rinase gene (HSV-tk) used by several methods and the dose-effect relationship. METHODS: Diverse doses (1 x 10(9) PFU, 1 x 10(10) PFU, 1 x 10(11) PFU) of adenovirus-mediated transfer of HSV-tk were given by intraparenchymatous, intravenous and intraperitoneal injection, and ganciclovir (GCV) (100 mg.kg(-1).d(-1)) was injected into the cavity of the peritoneum to treat human hepatocarcinoma. The change of tumors size was observed and the fragments of HSV-tk gene were tested. RESULTS: In nude mice after intraparenchymatous injection and high-dose (1 x 10(11) PFU) intravenous injection, the tumors were suppressed significantly (t = 13.1, 12.4, P < 0.01) and lots of fragments of HSV-tk gene were observed. In mice after intraperitoneal injection and low-dose (1 x 10(9) PFU, 1 x 10(10) PFU) intravenous injection, no suppressive effect was observed (t = 1.8, 1.0, 2.1, 1.1, 0.8, P > 0.05) with few or without fragments in the tumors. CONCLUSIONS: Adenovirus-mediated transfer of the HSV-tk by intraparenchymatous or intravenous injection is effective in treatment of hepatocarcinoma in nude mice, but intraperitoneal injection has no therapeutic effect.
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