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- W1532585665 abstract "Peroxisome proliferator-activated receptor gamma (PPARgamma) coactivator-1 alpha (PGC-1alpha) coactivates multiple transcription factors and regulates several metabolic processes. The current study investigated the role of PGC-1alpha in the induction of apoptosis in human epithelial ovarian cancer cells. The PGC-1alpha mRNA level between human ovaries and human ovarian epithelial tumors was examined by quantitative RT-PCR. Less PGC-1alpha expression was found in the surface epithelium of malignant tumors compared with normal ovaries. Overexpression of PGC-1alpha in human epithelial ovarian cancer cell line Ho-8910 induced cell apoptosis through the coordinated regulation of Bcl-2 and Bax expression. Microarray analyses confirmed that PGC-1alpha dramatically affected the apoptosis-related genes in Ho-8910 cells. Mitochondrial functional assay showed that the induction of apoptosis was through the terminal stage by the release of cytochrome c. Furthermore, PGC-1alpha-induced apoptosis was partially, but not completely, blocked by PPARgamma antagonist (GW9662), and suppression of PPARgamma expression by siRNA also inhibited PGC-1alpha-induced apoptosis in Ho-8910 cells. These data suggested that PGC-1alpha exerted its effect through a PPARgamma-dependent pathway. Our findings indicated that PGC-1alpha was involved in the apoptotic signal transduction pathways and downregulation of PGC-1alpha may be a key point in promoting epithelial ovarian cancer growth and progression." @default.
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- W1532585665 date "2007-03-20" @default.
- W1532585665 modified "2023-10-16" @default.
- W1532585665 title "PGC-1α induces apoptosis in human epithelial ovarian cancer cells through a PPARγ-dependent pathway" @default.
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- W1532585665 doi "https://doi.org/10.1038/cr.2007.11" @default.
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