6-Methylsulfinylhexyl Isothiocyanate Inhibits Cell Cycle Progression in Quiescent Jb6 Cells Stimulated with Epidermal Growth Factor
Takashi Hashimoto, Maki Kobayashi, Kazuki Kanazawa
Annual Research & Review in Biology · pp. 19–28 · Published 18 Jun 2021
10.9734/arrb/2021/v36i630386Abstract
Objective: The effects of 6-MSITC on cell cycle progression were investigated in quiescent mouse epidermal JB6 cells. Background: 6-Methylsulfinylhexyl isothiocyanate (6-MSITC) derived from wasabi (Wasabia japonica) has been reported to prevent tumor development in vivo. Material and methods: Treatment with epidermal growth factor (EGF) to quiescent JB6 cells, which were serum-starved for 36 h, promoted cell cycle progression from the G0/G1 phase to the S phase. Effects of pretreatment with 6-MSITC on cell cycle progression were estimated by flowcytometry and real-time RT-PCR. Results: Pretreatment with 6-MSITC at 0.25-1.0 μg/ml prior to the growth stimulation with EGF significantly inhibited cell cycle progression. Pretreatment with 6-MSITC inhibited the gene expression of DNA synthesis-related proteins cyclin A2, dumbbell former 4, and proliferating cell nuclear antigen. Conclusion: These results showed that 6-MSITC inhibits cell cycle progression in quiescent cells, accompanied by the inhibition of gene expression of DNA synthesis proteins.
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