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  • 标题:Protection of UVB-Induced Photoaging by Fuzhuan-Brick Tea Aqueous Extract via MAPKs/Nrf2-Mediated Down-Regulation of MMP-1
  • 本地全文:下载
  • 作者:Peijun Zhao ; Md Badrul Alam ; Sang-Han Lee
  • 期刊名称:Nutrients
  • 电子版ISSN:2072-6643
  • 出版年度:2019
  • 卷号:11
  • 期号:1
  • 页码:60-75
  • DOI:10.3390/nu11010060
  • 出版社:MDPI Publishing
  • 摘要:Ultraviolet B (UVB) irradiation is viewed as the principal inducer of skin photo-aging, associated with acceleration of collagen degradation and upregulation of matrix metalloproteinases (MMPs). The ethnic groups of southern/western China use Fuzhuan brick-tea (FBT) as a beverage and as a nutritional supplement. In this study, we scrutinized the antagonistic effects of aqueous extract of Fuzhuan-brick tea (FBTA) on skin photo-aging in UVB-exposed human keratinocyte (HaCaT) cells. FBTA exhibited strong antioxidant activity and quenched UVB-induced generation of cellular reactive oxygen species (ROS) without showing any toxicity. FBTA was capable of combating oxidative stress by augmenting messenger RNA (mRNA) and protein levels of both phase I and phase II detoxifying enzymes, especially heme oxygenase 1 (HO-1), by upregulating the nuclear factor erythroid 2-related factor 2 (Nrf2)-mediated pathway in HaCaT cells via the phosphorylation of p38 and extracellular signal-regulated kinase (ERK). FBTA also downregulated the expression of matrix metalloproteinase-1 (MMP-1) while upregulating type I procollagen by modulating Nrf2 signaling in UVB-irradiated HaCaT cells. Collectively, our results show that FBTA might be useful as a functional food while being a good candidate in the development of cosmetic products and medicines for the remedy of UVB-induced skin photo-aging.
  • 关键词:anti-oxidant; anti-photoaging; heme oxygenase-1; nuclear factor erythroid 2-related factor 2 ( Nrf2 ); matrix metalloproteinase-1 (MMP-1) anti-oxidant ; anti-photoaging ; heme oxygenase-1 ; nuclear factor erythroid 2-related factor 2 ( Nrf2 ) ; matrix metalloproteinase-1 (MMP-1)
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