期刊
FOOD & FUNCTION
卷 5, 期 7, 页码 1422-1431出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c4fo00035h
关键词
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资金
- National Natural Science Foundation of China [81173174, 81202655]
- National Key Technology RD Program [2008BAI51B02]
- Ph.D. Programs Foundation of Ministry of Education of China [20113237110008]
- Jiangsu College graduate research and innovation projects [CXZZ12-0622, CXZZ13-0627]
Oxidative stress has been implicated in various pathological processes, including skin tumourigenesis. Cutaneum carcinoma is commonly responsible for considerable morbidity and mortality, and treatments have not progressed substantially in recent years. Alternative strategies, such as chemoprevention, are being considered. In this study, we investigated the chemomodulatory potential of lycopene against 9,10-dimethylbenz[a]anthracene (DMBA)/12-O-tetradecanoylphorbol-13-acetate (TPA)-induced oxidative stress and skin carcinogenesis in female ICR mice. Pretreatment with lycopene at various doses significantly delayed tumour formation and growth. These treatments markedly reduced the tumour incidence and tumour volume. Moreover, lycopene inhibited the formation of reactive oxygen species and malondialdehyde, prevented the loss of glutathione, and affected the activities of a battery of oxidant enzymes in the skin of mice. Furthermore, mice that were administered lycopene exhibited higher levels of translocation of nuclear-factor-erythroid-2-related factor 2 into the nucleus compared with the vehicle-treated and model mice. Collectively, these results indicated that lycopene exerts a protective effect against DMBA/TPA-induced cutaneum carcinoma through antioxidant defence.
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