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Isoalantolactone induces intrinsic apoptosis through p53 signaling pathway in human lung squamous carcinoma cells.

Isoalantolactone induces intrinsic apoptosis through p53 signaling pathway in human lung squamous carcinoma cells.
Author Information (click to view)

Jin C, Zhang G, Zhang Y, Hua P, Song G, Sun M, Li X, Tong T, Li B, Zhang X,


Jin C, Zhang G, Zhang Y, Hua P, Song G, Sun M, Li X, Tong T, Li B, Zhang X, (click to view)

Jin C, Zhang G, Zhang Y, Hua P, Song G, Sun M, Li X, Tong T, Li B, Zhang X,

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PloS one 2017 08 0412(8) e0181731 doi 10.1371/journal.pone.0181731
Abstract

Isoalantolactone has recently been revealed to induce apoptosis in several types of cancer. However, little is reported on its anti-tumor potential on human lung cancer. Our present study was designed to investigate its effects on human lung squamous carcinoma SK-MES-1 cells. We found that Isoalantolactone induced cellular and DNA morphological changes and decreased the viability of SK-MES-1 cells. It significantly inhibited the growth of SK-MES-1 cells through apoptosis in a dose-dependent manner via activation of p53. It also induced cell cycle arrest at G1 phase. It can down-regulate Bcl-2 and up-regulate Bax, to induce dissipation of mitochondrial membrane potential and generation of reactive oxygen species. Caspase-3 was also activated by Isoalantolactone, with the cleavage of poly (ADP-ribose) polymerase. Our results reveal that Isoalantolactone induces intrinsic apoptosis in SK-MES-1 cells through p53 signaling pathway, which suggests that Isoalantolactone could be a potential leading compound for future development of anti-lung cancer drugs.

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