作者: Jillian K. Weinstein , Denise C. Connolly , Rudi Bao , Muthu Selvakumaran , Anne P. G. Crijns
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摘要: We have isolated 462 bp of sequence termed ovarian-specific promoter 1 (OSP-1) that is part a retrovirus-like element specifically expressed in the rat ovary. evaluated ability OSP-1 to activate gene expression normal and neoplastic cell lines derived from ovaries rats women. found there was marked specificity to drive reporter expression in an ovarian epithelial lineage manner. The herpes simplex virus thymidine kinase (HSV-TK) under control was sufficiently cancer line specific render ganciclovir∼ 50-fold more toxic A2780 human line compared with clones HCT-116 HT-29 colon lines. Furthermore, ganciclovir had marked antitumor efficacy in vivo severe combined immunodeficient mice bearing A2780OSP-1-HSV-TK as s.c. xenograft. suggest that these data support use tool provide specificity to the therapy ovarian-specific oncogene for creation transgenic mouse models of ovarian cancer.