Protective Effects of <i>Euphrasia officinalis</i> Extract against Ultraviolet B-Induced Photoaging in Normal Human Dermal Fibroblasts

oleh: Ying Liu, Eunson Hwang, Hien T. T. Ngo, Haribalan Perumalsamy, Yeon Ju Kim, Lu Li, Tae-Hoo Yi

Format: Article
Diterbitkan: MDPI AG 2018-10-01

Deskripsi

Ultraviolet (UV) radiation induces skin photoaging, which is associated with the elevation of matrix metalloproteinases (MMPs) and the impairment of collagen. The Euphrasia species play a well-known role in the treatment of certain eye disorders through their anti-oxidative and anti-inflammatory activities. However, their protective activity toward UVB-induced damage remains unclear. In the present study, we investigated the protective effect of <i>Euphrasia officinalis</i> (95% ethanol extract) on UVB-irradiated photoaging in normal human dermal fibroblasts (NHDFs). Our results show that <i>Euphrasia officinalis</i> extract exhibited obvious reactive oxygen species (ROS) and 2,2&#8242;-azino-bis (3-ethylbenzothiazoline-6-sulfonic acid) (ABTS) radical scavenging activity, enhanced NHDF cell migration, and reduced UVB-induced apoptosis. The UVB-induced increases in MMP-1 and MMP-3 and decrease in type I procollagen were ameliorated by <i>Euphrasia officinalis</i> treatment, which worked by suppressing the mitogen-activated protein kinase (MAPK) and nuclear transcription factor activator protein 1 (AP-1) signaling pathways. Taken together, our data strongly suggest that <i>Euphrasia officinalis</i> ethanol extract could reduce UVB-induced photoaging by alleviating oxidative stress, proinflammatory activity, and cell apoptosis.