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Journal of Medicinal Food 2020-Jul

Rosa multiflora Thunb Flower Extract Attenuates Ultraviolet-Induced Photoaging in Skin Cells and Hairless Mice

Samo registrirani uporabniki lahko prevajajo članke
Prijava / prijava
Povezava se shrani v odložišče
Chung Kwak
Jiwon Yang
Chang-Yup Shin
Jin Chung

Ključne besede

Povzetek

Ethanol extract (RET) of Rosa multiflora Thunb flowers and its subfractions in ethylacetate (REA) or n-butanol subfractions (RBT) were reported to have potent antioxidative and anti-inflammatory activities. In this study, we investigated if those Rosa multiflora flower (RMF) extracts prevent ultraviolet (UV)-induced biochemical damages leading to photoaging. In keratinocyte or dermal fibroblasts, RET, REA, and RBT treatments with UV irradiation significantly decreased reactive oxygen species (ROS), interleukin (IL)-6, IL-8, and matrix metalloproteinase (MMP)-1 levels through suppression of nuclear factor kappa B and mitogen-activated protein kinases. In the animal experiment, mice were orally supplemented with RET (RET group) or REA and RBT mixture (RM group) for 10 weeks, concomitantly with UV exposure. Tumor necrosis factor alpha production and MMP-13 expression were reduced in the mouse skin of RET and RM groups compared with those in the UV control (UVC) group. UV-induced IL-6 production and epidermal thickening were reduced in RM group compared with those in UVC group. Eight phenolic compounds, including quercitrin (quercetin-3-O-rhamnoside), were identified in RMF extracts. Quercitrin treatment to dermal fibroblasts significantly attenuated an increase of MMP-1 expression and a decrease of type I procollagen expression caused by UV. Collectively, RMF extracts showed protective effects from UV-induced photoaging in the skin through suppression of ROS generation, proinflammatory cytokine production, and MMP expression. Quercitrin is suggested to be one of the effective compounds.

Keywords: ROS; Rosa multiflora Thunb flowers; matrix metalloproteinase; quercitrin; skin photoaging.

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