國家衛生研究院 NHRI:Item 3990099045/8597
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    Please use this identifier to cite or link to this item: http://ir.nhri.org.tw/handle/3990099045/8597


    Title: Clozapine induces autophagic cell death in non-small cell lung cancer cells
    Authors: Yin, YC;Lin, CC;Chen, TT;Chen, JY;Tsai, HJ;Wang, CY;Chen, SY
    Contributors: Division of Biostatistics and Bioinformatics
    Abstract: Background/Aims: Previous studies have shown that patients with schizophrenia have a lower incidence of cancer than the general population, and several antipsychotics have been demonstrated to have cytotoxic effects on cancer cells. However, the mechanisms underlying these results remain unclear. The present study aimed to investigate the effect of clozapine, which is often used to treat patients with refractory schizophrenia, on the growth of non-small cell lung carcinoma cell lines and to examine whether autophagy contributes to its effects. Methods: A549 and H1299 cells were treated with clozapine, and cell cytotoxicity, cell cycle and autophagy were then assessed. The autophagy inhibitor bafilomycin A1 and siRNA-targeted Atg7 were used to determine the role of autophagy in the effect of clozapine. Results: Clozapine inhibited A549 and H1299 proliferation and increased p21 and p27 expression levels, leading to cell cycle arrest. Clozapine also induced a high level of autophagy, but not apoptosis, in both cell lines, and the growth inhibitory effect of clozapine was blunted by treatment with the autophagy inhibitor bafilomycin A1 or with an siRNA targeting atg7. Conclusions: Clozapine inhibits cell proliferation by inducing autophagic cell death in two non-small cell lung carcinoma cell lines. These findings may provide insights into the relationship between clozapine use and the lower incidence of lung cancer among patients with schizophrenia.
    Date: 2015-02
    Relation: Cellular Physiology and Biochemistry. 2015 Feb;35(3):945-956.
    Link to: http://dx.doi.org/10.1159/000369751
    Cited Times(WOS): https://www.webofscience.com/wos/woscc/full-record/WOS:000351402100010
    Cited Times(Scopus): http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=84923088110
    Appears in Collections:[Hui-Ju Tsai] Periodical Articles

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