戴林 张学庸 惠宏襄 王成济 樊代明 116021 大连，解放军第二一○医院(戴林)；西安第四军医大学西京医院(张学庸、樊代明)，分子生物学教研室(惠宏襄、王成济) 中华肿瘤杂志 1998 0 0 5


    关键词：胃肿瘤 细胞株 增殖细胞核抗原 RNA，反义 基因治疗 期刊 zhzlzz 0 基础研究 fur -->


    

【摘要】 目的 观察增殖细胞核抗原(PCNA)基因反义RNA表达质粒对人胃癌细胞生长特性的影响，探讨其抗肿瘤作用。方法 用DNA重组方法将人PCNA基因反向克隆到真核表达质粒pDOR-neo中，构建成人PCNA基因真核表达质粒pDR-PCNA,用脂质体介导转染人胃癌细胞系SGC-7901。结果 经G418筛选获得转染细胞SGC/PCNA，与亲本细胞相比，其生长速度减慢，RNA、蛋白质的生物合成受到抑制，S期、G₂ /M期DNA含量降低。结论 PCNA基因反义RNA对胃癌细胞的生长具有明显的抑制作用。

    Construction of PCNA antisense RNA expression vector and its antitumorigenic effect onhuman gastric cancer cell Dai Lin, Zhang Xueyong, Hui Hongxiang, et al. Department of Gastroenterology, 210 Hospital of PLA, Dalian 116021

    【Abstract】 Objective To observe the effect of proliferating cell nuclearantigen (PCNA) antisense RNA on the growth characteristics of human gastric cancer cell.Methods An eukaryotic expression vector pDR-PCNA with human PCNA gene insert in reversedirection was successfully constructed. The human gastric cancer cell line SGC-7901 wastransfected with pDR-PCNA by lipofectamine^TM . Results Growth rate, proteinand RNA biosynthesis and DNA contents in S-phase and G₂ /M-phase of thetransfected SGC-7901 were significantly suppressed in comparison with those of theparental cell line. Conclusion PCNA antisense RNA can significantly suppress the invitro growth of gastric cancer cell line.

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