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NLRC5 protects neurons from oxygen-glucose deprivation-induced injury through activating the Nrf2/HO-1 pathway
Journal of Receptors and Signal Transduction ( IF 2.8 ) Pub Date : 2020-07-01 , DOI: 10.1080/10799893.2020.1786840
Linlin Li 1 , Ming Yu 1 , Hongbo Pang 1 , Ling Chen 2 , Junya Liu 3 , Shiqing Hou 2
Affiliation  

Abstract NLRC5 is a member of the Nod-like receptor (NLR) family that has been found to be associated with the hepatic ischemia/reperfusion (I/R) injury. However, the role of NLRC5 in cerebral I/R has not been fully understood. The aim of the current study was to evaluate the effects of NLRC5 on primary hippocampal neuronal cells exposed to oxygen-glucose deprivation/reperfusion (OGD/R). Our results showed that the mRNA and protein levels of NLRC5 were significantly decreased in OGD/R-induced neurons. Overexpression of NLRC5 caused significant increase in cell viability, as well as decrease in ROS level. The bax expression was significantly decreased, while bcl-2 expression was increased in NLRC5-overexpressing neurons. Furthermore, increased nuclear factor erythroid 2-related factor 2 (Nrf2) and heme oxygenase-1 (HO-1) expression levels were observed in neurons transfected with pcDNA3.0-NLRC5. The mRNA levels of HO-1, NAD(P)H:quinone oxidoreductase 1 (NQO-1) and glutathione peroxidase 3 (GPx-3) were induced by NLRC5 overexpression in OGD/R-induced hippocampal neurons. Additionally, inhibition of Nrf2/HO-1 pathway abolished the protective effect of NLRC5 on cerebral I/R injury. In conclusion, these results indicated that NLRC5 protected hippocampal neurons from OGD/R-induced injury. The protective effects of NLRC5 were mediated by the Nrf2/HO-1 pathway. Thus, NLRC5 might serve as an effective target for the treatment of cerebral I/R injury.

中文翻译:

NLRC5 通过激活 Nrf2/HO-1 通路保护神经元免受氧-葡萄糖剥夺诱导的损伤

摘要 NLRC5 是 Nod 样受体 (NLR) 家族的成员,已被发现与肝脏缺血/再灌注 (I/R) 损伤有关。然而,NLRC5 在脑 I/R 中的作用尚未完全清楚。本研究的目的是评估 NLRC5 对暴露于氧-葡萄糖剥夺/再灌注 (OGD/R) 的原代海马神经元细胞的影响。我们的结果表明,OGD/R 诱导的神经元中 NLRC5 的 mRNA 和蛋白质水平显着降低。NLRC5 的过表达导致细胞活力的显着增加,以及 ROS 水平的降低。在 NLRC5 过表达神经元中,bax 表达显着降低,而 bcl-2 表达增加。此外,在转染 pcDNA3.0-NLRC5 的神经元中观察到核因子红细胞 2 相关因子 2 (Nrf2) 和血红素加氧酶-1 (HO-1) 表达水平增加。HO-1、NAD(P)H:醌氧化还原酶 1 (NQO-1) 和谷胱甘肽过氧化物酶 3 (GPx-3) 的 mRNA 水平由 OGD/R 诱导的海马神经元中的 NLRC5 过表达诱导。此外,Nrf2/HO-1 通路的抑制消除了 NLRC5 对脑 I/R 损伤的保护作用。总之,这些结果表明 NLRC5 保护海马神经元免受 OGD/R 诱导的损伤。NLRC5 的保护作用由 Nrf2/HO-1 通路介导。因此,NLRC5 可能作为治疗脑 I/R 损伤的有效靶点。醌氧化还原酶 1 (NQO-1) 和谷胱甘肽过氧化物酶 3 (GPx-3) 在 OGD/R 诱导的海马神经元中由 NLRC5 过表达诱导。此外,Nrf2/HO-1 通路的抑制消除了 NLRC5 对脑 I/R 损伤的保护作用。总之,这些结果表明 NLRC5 保护海马神经元免受 OGD/R 诱导的损伤。NLRC5 的保护作用由 Nrf2/HO-1 通路介导。因此,NLRC5 可能作为治疗脑 I/R 损伤的有效靶点。醌氧化还原酶 1 (NQO-1) 和谷胱甘肽过氧化物酶 3 (GPx-3) 在 OGD/R 诱导的海马神经元中由 NLRC5 过表达诱导。此外,Nrf2/HO-1 通路的抑制消除了 NLRC5 对脑 I/R 损伤的保护作用。总之,这些结果表明 NLRC5 保护海马神经元免受 OGD/R 诱导的损伤。NLRC5 的保护作用由 Nrf2/HO-1 通路介导。因此,NLRC5 可能作为治疗脑 I/R 损伤的有效靶点。NLRC5 的保护作用由 Nrf2/HO-1 通路介导。因此,NLRC5 可能作为治疗脑 I/R 损伤的有效靶点。NLRC5 的保护作用由 Nrf2/HO-1 通路介导。因此,NLRC5 可能作为治疗脑 I/R 损伤的有效靶点。
更新日期:2020-07-01
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