Chen Ying, Liu Huazhong, Huang Hao, Ma Yuetang, Wang Ruihua, Hu Yong, Zheng Xiufen, Chen Chunmei, Tang Hongfeng
Department of Dermatology, Nanchong Central Hospital, the Second Clinical Medical College of North Sichuan Medical College, Nanchong, China.
Department of Dermatology, Shunde Hospital, Southern Medical University (The First People's Hospital of Shunde Foshan), Foshan, China.
Front Pharmacol. 2020 Jan 17;10:1574. doi: 10.3389/fphar.2019.01574. eCollection 2019.
Oxidation injury to skin is one of the main reasons for skin aging. The aim of the present study was to explore the protective effect of squid ink polysaccharides and its mechanism of action against HO-induced dermal fibroblast damage. Our results show that squid ink polysaccharides effectively reduce the fibroblast oxidative damage mediated by the up-regulation of NADPH oxidase and Connexin43. Concurrently, squid ink polysaccharides decrease the ROS induced up-regulation of MMP1 and MMP9 to decrease MMP-mediated skin aging. Therefore, we hypothesize that squid ink polysaccharides play an antioxidant role by inhibiting the expression of NADPH oxidase and connexin43. This provides a new target for the effective clinical prevention and treatment of oxidative skin damage.
皮肤氧化损伤是皮肤衰老的主要原因之一。本研究旨在探讨鱿鱼墨多糖对过氧化氢诱导的真皮成纤维细胞损伤的保护作用及其作用机制。我们的结果表明,鱿鱼墨多糖通过上调NADPH氧化酶和连接蛋白43有效减少成纤维细胞氧化损伤。同时,鱿鱼墨多糖降低活性氧诱导的基质金属蛋白酶1和基质金属蛋白酶9上调,以减少基质金属蛋白酶介导的皮肤衰老。因此,我们推测鱿鱼墨多糖通过抑制NADPH氧化酶和连接蛋白43的表达发挥抗氧化作用。这为氧化皮肤损伤的有效临床防治提供了新靶点。