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Repurposing of quinoline alkaloids identifies their ability to enhance doxorubicin‐induced sub‐G0/G1 phase cell cycle arrest and apoptosis in cervical and hepatocellular carcinoma cells.
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- معلومة اضافية
- نبذة مختصرة :
The ability of quinoline alkaloids (cinchonine, cinchonidine, quinine, and quinidine) to sensitize different human cancer cell lines to doxorubicin (DOX)‐induced cell death was evaluated. Cell viability was analyzed using 3‐(4,5‐dimethylthiazol‐2‐yl)‐2,5‐diphenyltetrazolium bromide (MTT) assay and the alkaloids ability to enhance DOX‐induced apoptosis was explored using Western blotting analysis. Also, flow cytometry was applied to analyze cell fractions in the different cell cycle phases. All alkaloids showed a significant enhancement of DOX‐induced cell death in HeLa and HepG2 cell lines. The chemosensitizing activity of the quinoline alkaloids was attributed to the induction of apoptosis as indicated by splitting of caspase‐3 and its substrate poly (ADP‐ribose) polymerase (PARP). In addition, there was an increase in the cell fractions in sub‐G0/G1 phase in case of DOX combination with the alkaloids. This study proves the ability of the quinoline alkaloids to enhance DOX‐induced apoptotic cell death in human cervical and hepatocellular carcinoma cells. [ABSTRACT FROM AUTHOR]
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