Extended exposure to UVB (280-315 nm) radiation results in oxidative damage and inflammation of the skin. Previous research has demonstrated that pilose antler extracts have strong anti-inflammatory properties and possess antioxidant effects. This study aimed to elucidate the mechanism of pilose antler protein in repairing photodamage caused by UVB radiation in HaCaT cells and ICR mice. Pilose antler protein (PAP) was found to increase the expression of type I collagen and hyaluronic acid in HaCaT cells under UVB irradiation while also inhibiting reactive oxygen species (ROS) production and oxidative stress in vitro. In vivo, the topical application of pilose antler protein effectively attenuated UVB-induced skin damage in ICR mice by reducing interleukin-1β (IL-β), interleukin-6 (IL-6), and tumor necrosis factor-α (TNF-α) and inhibiting skin inflammation while alleviating UVB-induced oxidative stress. It was shown that pilose antler protein repaired UVB-induced photodamage through the MAPK and TGF-β/Smad pathways.
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| http://dx.doi.org/10.3390/molecules29174060 | DOI Listing |
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