期刊
EXPERIMENTAL DERMATOLOGY
卷 20, 期 5, 页码 445-447出版社
WILEY
DOI: 10.1111/j.1600-0625.2010.01236.x
关键词
5; 7-Dimethoxyflavone; Akt; GSK-3 beta; cAMP responsive element-binding protein; cAMP-dependent signalling; melanogenesis
类别
Melanin protects the skin against ultraviolet radiation (UVR) and diverse free radicals. Agents that increase melanin synthesis in melanocytes may reduce UVR-induced skin damage and skin cancer. In the present study, we evaluated the effects of 5,7-dimethoxyflavone (5,7-DMF) on melanogenic protein expression and signalling pathways. We found that 5,7-DMF significantly increased melanin content by upregulating microphthalmia-associated transcription factor and related melanogenic proteins. Additionally, 5,7-DMF increased cAMP levels, which activates a cascade of reactions, such as cAMP responsive element-binding protein and Akt/glycogen synthase kinase-3 beta (GSK-3 beta) signalling. Thus, 5,7-DMF may be an effective pigmentation stimulator for photoprotection and hypopigmentation disorders.
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