AIM:To investigate the effect of methylsulfonylmethane(MSM), recently reported to have anti-cancer effects, in liver cancer cells and transgenic mice. METHODS: Three liver cancer cell lines, HepG2, Huh7-Mock and Huh7-...AIM:To investigate the effect of methylsulfonylmethane(MSM), recently reported to have anti-cancer effects, in liver cancer cells and transgenic mice. METHODS: Three liver cancer cell lines, HepG2, Huh7-Mock and Huh7-H-rasG12V, were used. Cell growth was measured by Cell Counting Kit-8 and soft agar assay. Western blot analysis was used to detect caspases, poly(ADP-ribose) polymerase(PARP), and B-cell lymphoma2(Bcl-2) expressions. For in vivo study, we administered MSM to H-ras12V transgenic mice for 3 mo. RESULTS: MSM decreased the growth of HepG2, Huh7-Mock and Huh7-H-rasG12V cells in a dose-dependent manner. That was correlated with significantly increased apoptosis and reduced cell numbers in MSM treated cells. Cleaved caspase-8, cleaved caspase-3 and cleaved PARP were remarkably increased in the liver cancer cells treated with 500 mmol/L of MSM; however, Bcl-2 was slightly decreased in 500 mmol/L. Liver tumor development was greatly inhibited in the H-ras12V transgenic mice treated with MSM, compared to control, by showing reduced tumor size and number. Cleaved PARP was significantly increased in non-tumor treated with MSM compared to control. CONCLUSION: Liver injury was also significantly attenuated in the mice treated with MSM. Taken together, all the results suggest that MSM has anti-cancer effects through inducing apoptosis in liver cancer.展开更多
以二甲基亚砜与过氧化氢为原料制备了二甲基砜。在单因素实验基础上,运用响应面法,以二甲基砜的收率为响应值,通过回归分析得出制备二甲基砜的优化条件为:反应温度95.7℃,反应时间1.57 h,v(二甲基亚砜)∶v(过氧化氢)=1.0∶1.1,过氧化氢...以二甲基亚砜与过氧化氢为原料制备了二甲基砜。在单因素实验基础上,运用响应面法,以二甲基砜的收率为响应值,通过回归分析得出制备二甲基砜的优化条件为:反应温度95.7℃,反应时间1.57 h,v(二甲基亚砜)∶v(过氧化氢)=1.0∶1.1,过氧化氢的滴加速度4 m L/min。在此条件下二甲基砜的收率为88.6%。展开更多
基金Supported by The World Class Institute(WCI) Program of the Na-tional Research Foundation of Korea(NRF),No.WCM0101222Ministry of Education,Science and Technology of Korea(MEST),the National R and D Program for Cancer Control,Ministry of Health and Welfare,South Korea,No.BCM0061213KRIBB Research Initiative Program Grant,No.KGM3141312
文摘AIM:To investigate the effect of methylsulfonylmethane(MSM), recently reported to have anti-cancer effects, in liver cancer cells and transgenic mice. METHODS: Three liver cancer cell lines, HepG2, Huh7-Mock and Huh7-H-rasG12V, were used. Cell growth was measured by Cell Counting Kit-8 and soft agar assay. Western blot analysis was used to detect caspases, poly(ADP-ribose) polymerase(PARP), and B-cell lymphoma2(Bcl-2) expressions. For in vivo study, we administered MSM to H-ras12V transgenic mice for 3 mo. RESULTS: MSM decreased the growth of HepG2, Huh7-Mock and Huh7-H-rasG12V cells in a dose-dependent manner. That was correlated with significantly increased apoptosis and reduced cell numbers in MSM treated cells. Cleaved caspase-8, cleaved caspase-3 and cleaved PARP were remarkably increased in the liver cancer cells treated with 500 mmol/L of MSM; however, Bcl-2 was slightly decreased in 500 mmol/L. Liver tumor development was greatly inhibited in the H-ras12V transgenic mice treated with MSM, compared to control, by showing reduced tumor size and number. Cleaved PARP was significantly increased in non-tumor treated with MSM compared to control. CONCLUSION: Liver injury was also significantly attenuated in the mice treated with MSM. Taken together, all the results suggest that MSM has anti-cancer effects through inducing apoptosis in liver cancer.
文摘以二甲基亚砜与过氧化氢为原料制备了二甲基砜。在单因素实验基础上,运用响应面法,以二甲基砜的收率为响应值,通过回归分析得出制备二甲基砜的优化条件为:反应温度95.7℃,反应时间1.57 h,v(二甲基亚砜)∶v(过氧化氢)=1.0∶1.1,过氧化氢的滴加速度4 m L/min。在此条件下二甲基砜的收率为88.6%。
