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  • Title: [Enhanced cisplatin cytotoxicity by RNA interfering the excision repair cross-complementing 1 gene in ovarian cancer cell lines].
    Author: Liu GY, Qu QX, Mi RR, Qi J.
    Journal: Zhonghua Fu Chan Ke Za Zhi; 2006 May; 41(5):339-42. PubMed ID: 16762192.
    Abstract:
    OBJECTIVE: To study changes of cisplatin sensitivity by RNA interfering the excision repair cross-complementing (ERCC) 1 gene in ovarian cancer cell lines. METHODS: The small interference RNA (siRNA) targeting ERCC1 gene was designed and synthesized by transcription in vitro, and transfected to ovarian cancer cell line ES-2. The mRNA and protein of ERCC1 were evaluated by means of RT-PCR, western blot and immunocytochemistry. The changes of cisplatin sensitivity after interference were examined by methyl thiazolyl tetrazolium (MTT) assay. RESULTS: In ES-2 cell, the mRNA and protein levels of ERCC1 were dramatically decreased 24, 48 and 72 hours after transfection. The sensitivity to cisplatin of ES-2 cell line was increased by 53.88 times after disturbing the ERCC1 gene. CONCLUSION: The sensitivity to cisplatin of ovarian cancer cell lines ES-2 could be enhanced by RNA interfering ERCC1 gene.
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