Konger Raymond L, Marathe Gopal K, Yao Yongxue, Zhang Qiwei, Travers Jeffrey B
Department of Pathology, Indiana University, Indianapolis, IN 46202, USA.
Prostaglandins Other Lipid Mediat. 2008 Dec;87(1-4):1-8. doi: 10.1016/j.prostaglandins.2008.04.002. Epub 2008 May 2.
Ultraviolet light radiation (UVR) has profound effects upon human skin. Yet, the exact targets for UVR are unclear. Inasmuch as UVR is a known pro-oxidative stressor, one potential target for UVR could be oxidatively modified glycerophosphocholines (GPC). Importantly, recent studies demonstrate that these oxidized GPCs (ox-GPC) are potent agonists for the platelet-activating factor receptor and peroxisome proliferator-activated receptor gamma. This review discusses these new biologically active lipids and their down-stream receptor targets that provide a unique system of biosensors for detecting and responding to UVR photo-oxidation.
紫外线辐射(UVR)对人体皮肤有深远影响。然而,UVR的确切作用靶点尚不清楚。鉴于UVR是一种已知的促氧化应激源,UVR的一个潜在靶点可能是氧化修饰的甘油磷酸胆碱(GPC)。重要的是,最近的研究表明,这些氧化型GPC(ox-GPC)是血小板活化因子受体和过氧化物酶体增殖物激活受体γ的强效激动剂。本文综述了这些新的生物活性脂质及其下游受体靶点,它们提供了一个独特的生物传感器系统,用于检测和响应UVR光氧化。