每年出版 4 期
ISSN 打印: 0731-8898
ISSN 在线: 2162-6537
Indexed in
Correlative Studies Unravelling the Possible Mechanism of Cell Death in Tideglusib-Treated Human Ovarian Teratocarcinoma-Derived PA-1 Cells
摘要
This study aims to unravel the use of GSK-3 inhibitors as viable apoptotic inducers for teratocarcinoma-derived ovarian PA-1 cells. MTT assay was carried out to assess inhibitory concentrations of LiCl and TDG. AO/EB staining and Hoechst 33258 staining were employed to assess the damage. Mitochondrial membrane potential (ΔΨm) and ROS generation were assessed with IC50 concentrations of LiCl and TDG. Tumor-related genes (p53, p21, IL-8, TNF-α, MMP-2, Fas-L, Cox-2, and caspase-3) were assessed with 1/4 IC50, 1/2 IC50, IC50 concentrations by semi-quantitative RT- PCR. Cell cycle analysis was performed with IC50 concentration of LiCl and TDG. Western blot analysis was performed for caspase-3, caspase-7, caspase-9, PARP to estimate the possible damage induced by GSK-3 inhibitors and regulation of GSK-3β, pGSK-3β, Cox-2. GSK-3 inhibitors demonstrated a concentration and time-dependent reduction in cell viability, exhibiting significant ROS generation and reduced ΔΨm at their IC50 values. Substantial concentration-dependent gene expression changes with significant upregulation of P21, Cox-2, TNF-α, caspase-3, Fas-L were observed. Protein expression of caspase-3 caspase-7, caspase-9, PARP exhibited significant cleavage in LiCl and TDG-treated cells. Protein expression of Cox-2 was significantly increased in IC50 concentration of TDG. Cell cycle analysis showed significant accumulation of cells at sub-G0-G1.
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