催产素抑制顺铂诱导的肾毒性中的 NADPH 氧化酶和 P38 MAPK。
Oxytocin inhibits NADPH oxidase and P38 MAPK in cisplatin-induced nephrotoxicity.
机构信息
Department of Biochemistry, Faculty of Medicine, Cairo University, Cairo, Egypt.
出版信息
Biomed Pharmacother. 2011 Oct;65(7):474-80. doi: 10.1016/j.biopha.2011.07.001. Epub 2011 Aug 27.
Oxidative stress significantly contributes to cisplatin (CP)-associated cytotoxicity, and use of antioxidants could counteract such cytotoxic effects of CP. The major biochemical pathway for reactive oxygen species (ROS) formation proceeds through O₂⁻ production, which is generated by NADPH oxidase, such oxidative stress can activate p38 MAPK to intensify the cytotoxic effect of CP. We mainly aimed to study the protective effect of oxytocin (OT) on CP-induced nephrotoxicity whereas; it was previously shown to have anti-inflammatory effects in different inflammation models. Administration of OT significantly decreased the gene expression of both NADPH oxidase and P38 MAPK, nitric oxide (NO), myloperoxidase (MPO), and TBARS, furthermore it increased the renal tissue levels of antioxidants; reduced glutathione (GSH), and superoxide dismutase (SOD). Histologically, OT reduced the monocellular infiltration as well as the tubular damage in CP-induced nephrotoxicity. In conclusion OT has a powerful antioxidant effect that can alleviate the CP-induced nephrotoxicity through inhibition of NADPH oxidase and P38 MAPK resulting in improvement of kidney functions.
氧化应激显著促进顺铂(CP)相关的细胞毒性,而抗氧化剂的使用可以抵消 CP 的这种细胞毒性作用。活性氧(ROS)形成的主要生化途径是通过 NADPH 氧化酶产生 O₂⁻,这种氧化应激可以激活 p38 MAPK 以增强 CP 的细胞毒性作用。我们主要旨在研究催产素(OT)对 CP 诱导的肾毒性的保护作用,而先前的研究表明它在不同的炎症模型中具有抗炎作用。OT 的给药显著降低了 NADPH 氧化酶和 P38 MAPK、一氧化氮(NO)、髓过氧化物酶(MPO)和 TBARS 的基因表达,此外,它还增加了肾脏组织中抗氧化剂的水平;还原型谷胱甘肽(GSH)和超氧化物歧化酶(SOD)。组织学上,OT 减少了 CP 诱导的肾毒性中的单核细胞浸润和管状损伤。总之,OT 具有强大的抗氧化作用,通过抑制 NADPH 氧化酶和 P38 MAPK 减轻 CP 诱导的肾毒性,从而改善肾功能。