Pro-survival and anti-inflammatory roles of NF-κB c-Rel in the Parkinson's disease models

• Published in: Redox biology Vol. 30; p. 101427
• Main Authors: Wang, Zishan, Dong, Hongtian, Wang, Jinghui, Huang, Yulu, Zhang, Xiaoshuang, Tang, Yilin, Li, Qing, Liu, Zhaolin, Ma, Yuanyuan, Tong, Jiabin, Huang, Li, Fei, Jian, Yu, Mei, Wang, Jian, Huang, Fang
• Format: Journal Article
• Language: English
• Published: Netherlands Elsevier B.V 01.02.2020; Elsevier
• Subjects: 1-Methyl-4-phenyl-1,2,3,6-tetrahydropyridine - adverse effects; Animals; Case-Control Studies; Cell Line; Disease Models, Animal; Dopaminergic neurons; Dopaminergic Neurons - drug effects; Dopaminergic Neurons - metabolism; Gene Expression Profiling; Gene Expression Regulation - drug effects; Humans; Inflammation; Lipopolysaccharides - adverse effects; Male; Mice; Microglia; Microglia - drug effects; Microglia - metabolism; Neuroprotection; NF-κB/c-Rel; Parkinson Disease - etiology; Parkinson Disease - genetics; Parkinson Disease - metabolism; Parkinson's disease; Proto-Oncogene Proteins c-rel - metabolism; Research Paper; Dopaminergic neurons; Neuroprotection; Inflammation; Parkinson's disease; NF-κB/c-Rel; Microglia
• ISSN: 2213-2317; 2213-2317
• DOI: 10.1016/j.redox.2020.101427

The pathological hallmarks of Parkinson's disease (PD) are the progressive loss of dopaminergic (DA) neurons in the substantia nigra pars compacta (SNpc) and the presence of overactivated glial cells and neuroinflammation. Nuclear factor kappa-light-chain-enhancer of activated B cells (NF-κB) c-Rel subunit is closely related in the pathological progress of PD, however the roles and mechanisms of c-Rel in PD development remain unclear. Here, in neurotoxins-induced PD models, the dynamic changes of NF-κB c-Rel and its functions were evaluated. We found that c-Rel was rapidly activated in the nigrostriatal pathway, which mainly occurred in dopaminergic neurons and microglia. c-Rel could maintain neuronal survival by initiating the anti-apoptotic gene expression in MPP+-treated SH-SY5Y cells and it could inhibit microglial overactivation by suppressing the inflammatory gene expression in LPS-challenged BV2 cells. c-Rel inhibitor IT901 aggravated the damage of MPTP on dopaminergic neurons and promoted the activation of microglia in the nigrostriatal pathway of mice. Moreover, the expression of c-Rel in blood samples of PD patients decreased dramatically. Our results indicate that the NF-κB/c-Rel subunit plays an important role in neuroprotection and neuroinflammation inhibition during PD progression. [Display omitted] •NF-κB c-Rel subunit is rapidly activated in the nigrostriatal pathway of PD mice.•c-Rel promotes neuronal survival in MPP+-treated SH-SY5Y cells.•c-Rel inhibits microglial overactivation in LPS-challenged BV2 cells.•c-Rel inhibitor IT901 aggravates MPTP-induced damages in the nigrostriatal pathway.•c-Rel is pro-survival, anti-oxidative stress and anti-inflammation in PD progression.