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KMID : 1007520180270010147
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Food Science and Biotechnology
2018 Volume.27 No. 1 p.147 ~ p.157
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The anti-photoaging and moisturizing effects of Bouea macrophylla extract in UVB-irradiated hairless mice
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Cheong Yong-In
Kim Chang-Hee
Kim Mi-Bo
Hwang Jae-Kwan
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Abstract
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Ultraviolet (UV) light, a main cause of photoaging, leads to collapse of skin structure, resulting in wrinkle formation and dehydration. The present study assessed the anti-photoaging and moisturizing effects of Bouea macrophylla extract (BRE). UVB-irradiated hairless mice were orally administered with BME (300 mg/kg/day) for 8 weeks. BME ameliorated wrinkle formation, skin thickening, and inelasticity. BME upregulated COL1A1, COL3A1, COL4A1, and COL7A1 mRNA levels through activation of the transforming growth factor-β (TGF-β)/Smad pathway, thereby recovering the content of collagen reduced by UVB. Further, BME suppressed UVB-induced matrix metalloproteinase (MMP)-3 and MMP-13 expression and inhibited MMP-2 and MMP-9 activity by mediating the mitogen-activated protein kinases (MAPKs)/activator protein-1 (AP-1). BME improved moisture content by stimulating the expression of cornified envelope proteins and filaggrin-processing enzymes. Overall, the results show that BME prevents photoaging and promotes moisturization in UVB-irradiated hairless mice, suggesting its potential as a nutraceutical candidate for anti-photoaging and moisturizing effects.
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KEYWORD
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Bouea macrophylla, Matrix metalloproteinase, Collagen, Anti-photoaging, Moisturizing effect
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