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Abstract Title:

Anti-Stem Cell Property of Pterostilbene in Gastrointestinal Cancer Cells.

Abstract Source:

Int J Mol Sci. 2020 Dec 8 ;21(24). Epub 2020 Dec 8. PMID: 33302440

Abstract Author(s):

Shiori Mori, Shingo Kishi, Kanya Honoki, Rina Fujiwara-Tani, Takuma Moriguchi, Takamitsu Sasaki, Kiyomu Fujii, Shinji Tsukamoto, Hiromasa Fujii, Akira Kido, Yasuhito Tanaka, Yi Luo, Hiroki Kuniyasu

Article Affiliation:

Shiori Mori

Abstract:

Pterostilbene (PTE) is a natural sterbenoid contained in blueberries that has an antioxidant effect. In contrast, PTE also generates oxidative stress in cancer cells and provides an antitumor effect. Here, we examined the potential mechanism of this contrasting effect of PTE using three gastrointestinal cancer cell lines, namely CT26, HT29, and MKN74. PTE showed a dose-dependent inhibition of cell proliferation, sphere-forming ability, and stem cell marker expression in all three cell lines. Furthermore, the cells treated with PTE showed an increase in mitochondrial membrane potential and an increase in mitochondrial oxidative stress and lipid peroxide. Upon concurrent treatment with vitamin E, N-acetyl-L-cysteine, and PTE, the PTE-induced mitochondrial oxidative stress and growth inhibition were suppressed. These findings indicate that PTE induces oxidative stress in cancer cells, suppresses stemness, and inhibits proliferation. These antitumor effects of PTE are considered to be useful in cancer treatment.

Study Type : In Vitro Study

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Sayer Ji
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