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Effects of Capsaicin and Its Analogs on the Growth of Gastric Cancer Cells and Their Structure-activity Relationships In Vitro

机译:辣椒素及其类似物对胃癌细胞生长的影响及其体外构效关系

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摘要

Capsaicin is an organic compound in chili peppers which are consumed by over one quarter of the world's population daily. Studies have shown that capsaicin can prohibit proliferation in some cancer cells. In the present study, both gastric cancer and normal epithelial cell lines were employed and treated with capsaicin and its analogs and examined for the structure-activity relationship as well. 3-(4, 5-di-methylthiazol-2-yl)-2,5-diphenyltetrazolium bromide yellow tetrazole (MTT) assay results showed the order of effectiveness of capsaicin analogs in the used cell culture system was as follows: dihydrocapsaicin > capsaicin > 6-gingerol > vanillin > vanillylamine, and, reactive oxygen species (ROS) and malondialde-hyde (MDA) contents were markedly increased; the biological activity pathway of Superoxide dismutase (SOD) and Glutathione Peroxidase (GSH-Px) was up-regulated, whereas, the catalase (CAT) activity was down-regulated by dihydrocapsaicin, capsaicin and 6-gingerol. In conclusion, the results implied that B and C region are indispensable for the anti-cancer activity of capsaicin and CAT activity down-regulation was responsible for apoptosis of gastric cancer cells induced by capsaicin and its analogs.
机译:辣椒素是辣椒中的一种有机化合物,全世界每天有超过四分之一的人口食用辣椒素。研究表明,辣椒素可以抑制某些癌细胞的增殖。在本研究中,采用胃癌和正常上皮细胞系并用辣椒素及其类似物进行治疗,并检查其结构-活性关系。 3-(4,5-二甲基噻唑-2-基)-2,5-二苯基溴化四溴化黄四唑(MTT)分析结果表明,辣椒素类似物在所用细胞培养系统中的有效性顺序如下:二氢辣椒素>辣椒素> 6-姜油>香兰素>香兰素,并且活性氧(ROS)和丙二醛(MDA)含量显着增加;超氧歧化酶(SOD)和谷胱甘肽过氧化物酶(GSH-Px)的生物活性途径被上调,而二氢辣椒素,辣椒素和6-姜油素则过氧化氢酶(CAT)活性被下调。总之,结果暗示B和C区域对于辣椒素的抗癌活性是必不可少的,而CAT活性的下调是辣椒素及其类似物诱导的胃癌细胞凋亡的原因。

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