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- W3196355854 abstract "To identify therapeutic effect after combine Sodium Iodine Symporter (NIS) and Mutant Herpes-simplex virus type 1 sr39tk (HSV1-sr39tk) expression in hepatocellular carcinoma cell, we transfected triple gene and investigated the properties of these gene ability in hepatocellular carcinoma cell line. After making vector with gene encoding a fusion protein comprised of HSV1-sr39tk and green florescence protein (GFP), to make triple reporter genes NIS gene was further fused to the vector using IRES vector. The vector expressing triple reporter gene was transfected to the Huh-7 cell line using liposome. Functions of hNIS and HSV1-sr39tk expression were confirmed by radio iodine uptake with and without perchlorate and [3H]-penciclovir (3-H PCV) uptake, respectively. To evaluate therapeutic effect in vitro, GCV and I-131 was treated in Huh-7/NTG cell and dual therapy performed. An animal imaging acquired using Optix and microPET in vivo. I-125 uptake was increased up to 100-fold compare to that of non-transfected cells. The transfected cell accumulated H-3 PCV up to 53 times higher at 2 hour than that of non-transfected cells. With fluorescence microscopy, green fluorescence was detected in the transfected cell. In cytotoxic studies, the cell viability of Huh-7/NTG cell was decreased to 41 % of control cell at 10ug/ml GCV concentrations. The survival rate of the Huh-7/NTG cell treated with I-131 decreased up to 16%. In I-131 and GCV dual therapy, Huh-7/NTG cell survival rate decreased up to 4%. In animal studies, Huh-7/NTG tumors showed higher uptake of 18F-FHBG and I-124 than Huh-7 tumors. GFP signal is also higher in Huh-7/NTG tumor than control. We successfully constructed a vector with delivery two therapeutic genes and one reporter gene and transfected the vector to a Huh-7 cell. The hepatocellular carcinoma cell transfected with the vector can be treated with GCV and I-131. The effect of dual gene therapy could be easily assessed by the optical reporter gene imaging." @default.
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- W3196355854 date "2007-07-01" @default.
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- W3196355854 title "Combination therapy and evaluation of therapeutic effect in hepatocellular carcinoma cell using triple reporter genes; containing for NIS, HSV1-sr39tk and GFP" @default.
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