Anti-apoptotic effect of clusterin on cisplatin-induced cell death of retinoblastoma cells

Hyun Beom Song, Hyoung Oh Jun, Jin Hyoung Kim, Young Suk Yu, Kyu Won Kim, Bon Hong Min, Jeong Hun Kim

    Research output: Contribution to journalArticlepeer-review

    17 Citations (Scopus)


    Clusterin is a cytoprotective chaperone protein that is known to protect various retinal cells. It was also reported to be overexpressed in several types of malignant tumors, whose chemoresistance correlates with the expression of clusterin. Herein, we investigated the effect of clusterin on cisplatininduced cell death of retinoblastoma cells. Firstly, evaluation of clusterin expression demonstrated that it was highly expressed in human retinoblastoma tissues and cell lines (SNUOT-Rb1 and Y79) particularly in the area between viable cells around vessels and necrotic zones in the relatively avascular area in human retinoblastoma tissues. Furthermore, the effects of cisplatin on retinoblastoma cells were evaluated. Cisplatin (1 μg/ml) significantly affected cell viability of SNUOT-Rb1 cells by inducing caspase-3-dependent apoptosis. Notably, the cell death due to cisplatin was prevented by 5 μg/ml of clusterin administered 4 h prior to cisplatin treatment by inhibiting cisplatin-induced apoptosis. Furthermore, overexpression of clusterin exerted its anti-apoptotic effect on cisplatin-induced apoptosis, and effectively prevented cisplatin-induced cell death. These data suggest that clusterin, found to be expressed in human retinoblastoma, may exert anti-apoptotic effects on cisplatin-induced apoptosis and prevent cell death. Therefore, clusterin can contribute to cisplatin resistance of retinoblastoma.

    Original languageEnglish
    Pages (from-to)2713-2718
    Number of pages6
    JournalOncology reports
    Issue number6
    Publication statusPublished - 2013 Dec


    • Apoptosis
    • Caspase-3
    • Cisplatin
    • Clusterin
    • Retinoblastoma cells

    ASJC Scopus subject areas

    • Oncology
    • Cancer Research


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