DHA and vitamin E antagonized the A beta 25-35-mediated neuron oxidative damage through activation of Nrf2 signaling pathways and regulation of CD36, SRB1 and FABP5 expression in PC12 cells+
机构：[a]School of Public Health, Capital Medical University, Beijing 100069, P.R. China[b]Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing 100050, China重点科室诊疗科室神经外科神经外科首都医科大学附属天坛医院[c]Department of Orthopaedics and Neurosurgery, University of Southern California, Keck Medical Center, Los Angeles, 90033, USA
The present study was designed to explore the neuroprotective effects of docosahexaenoic acid (DHA) and/or vitamin E (VE) in vitro. The PC12 cells were pretreated with DHA and/or VE for 4 h, followed by 50 mol L-1 A(25-35) treatments for another 48 h. The cells were then collected and used for the measurements of oxidative stress parameters. Real time-PCR and western blot were applied to measure fatty acid transporters, Nrf2 and its downstream antioxidant targets' gene and protein expression. Our results indicated that the A(25-35) treatment inhibited cellular growth, increased intracellular ROS generation and decreased the mitochondrial membrane potential. The A(25-35) treatment decreased the total antioxidant capacity (T-AOC), whereas it increased the MDA levels in neuron cells. Pretreatment of cells with VE or DHA could antagonize the A(25-35)-mediated cell growth inhibition and mitochondrial membrane potential decline. Activation of the Nrf2 signaling pathway and regulation of CD36, SRB1 and FABP5 expression were observed in DHA- and DHA + VE-pretreated cells. Our results indicated a synergistic effect of DHA and VE in antagonizing the oxidative damage caused by A(25-35) in the PC12 cells. The results of the present study will shed light on the application of nutritional intervention for DHA and VE in preventing neuronal damage-related diseases.
基金：
National Natural Science Foundation of ChinaNational Natural Science Foundation of China [81673148]
第一作者机构：[a]School of Public Health, Capital Medical University, Beijing 100069, P.R. China
通讯作者：
通讯机构：[a]School of Public Health, Capital Medical University, Beijing 100069, P.R. China
推荐引用方式(GB/T 7714)：
Xiaochen Huang ,Jie Zhen ,Shengqi Dong ,et al.DHA and vitamin E antagonized the A beta 25-35-mediated neuron oxidative damage through activation of Nrf2 signaling pathways and regulation of CD36, SRB1 and FABP5 expression in PC12 cells+[J].FOOD & FUNCTION.2019,10(2):1049-1061.doi:10.1039/c8fo01713a.
APA：
Xiaochen Huang,,Jie Zhen,,Shengqi Dong,,Huiqiang Zhang,,Nicholas Van Halm-Lutterodt&Linhong Yuan.(2019).DHA and vitamin E antagonized the A beta 25-35-mediated neuron oxidative damage through activation of Nrf2 signaling pathways and regulation of CD36, SRB1 and FABP5 expression in PC12 cells+.FOOD & FUNCTION,10,(2)
MLA：
Xiaochen Huang,,et al."DHA and vitamin E antagonized the A beta 25-35-mediated neuron oxidative damage through activation of Nrf2 signaling pathways and regulation of CD36, SRB1 and FABP5 expression in PC12 cells+".FOOD & FUNCTION 10..2(2019):1049-1061
农林科学