Diphenyl Diselenide Protects Motor Neurons through Inhibition of Microglia-Mediated Inflammatory Injury in Amyotrophic Lateral Sclerosis.
Diphenyl Diselenide Protects Motor Neurons through Inhibition of Microglia-Mediated Inflammatory Injury in Amyotrophic Lateral Sclerosis.
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二苯基二硒化物通过抑制肌萎缩侧索硬化症中小胶质细胞介导的炎症损伤来保护运动神经元。
DOI:
10.1016/j.phrs.2021.105457
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发表时间:
2021-01
影响因子:
9.3
通讯作者:
Honglin Feng
中科院分区:
文献类型:
--
作者:
Chunting Zhang;Hongyong Wang;Weiwei Liang;Yueqing Yang;Chaohua Cong;Ying Wang;Shuyu Wang;Xudong Wang;Di Wang;Di Huo;Honglin Feng
Microglia-mediated neuroinflammatory response and neuron damage are considered as a self-propelling progressive cycle, being strongly implicated in the progression of neurodegeneration in amyotrophic lateral sclerosis (ALS). Diphenyl diselenide (DPDS), a simple organoselenium compound, has been known to possess multiple pharmacological properties. The purpose of this study was to explore the neuroprotective effects of DPDS against microglia-mediated neuroinflammatory injury in ALS models. We found that DPDS pretreatment inhibited LPS-induced activation of IκB/NF-κB pathway and subsequent release of proinflammatory factors from activated primaryhSOD1G93Amicroglia. Moreover, DPDS suppressed NLRP3 inflammasome activation by decreasing protein nitration via reduction in NO and ROS levels, whose low levels are related to NF-κB inhibition responsible for iNOS and NOX2 down-regulations, respectively. Notably, DPDS-mediated ROS attenuation was not linked to Nrf2 activation in this cellular model. Furthermore, in the absence of activated microglia, DPDS has no significant effect on the individualhSOD1G93A-NSC34 cells; however, inin vitroneuron-microglia conditional culture and co-culture experiments, DPDS protected motor neurons from neurotoxic damage caused by LPS or BzATP-stimulated microglia activation. Above observations suggest that DPDS-afforded neuroprotection is linked to inhibition of microglia-mediated neuroinflammation in ALS, which was further verifiedin vivoas shown by improvements of motor deficits, prolonged survival, and reduction of motor neuron loss and reactive microgliosis inhSOD1G93Atransgenic mouse. Altogether, our results show that DPDS elicited neuroprotection in ALS models through inactivation of microglia by inhibiting IκB/NF-κB pathway and NLRP3 inflammasome activation, suggesting that DPDS may be a promising candidate for potential therapy for ALS.
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影响因子:
5.3
作者:
Liao, Bing;Zhao, Weihua;Beers, David R.;Henkel, Jenny S.;Appel, Stanley H.
通讯作者:
Appel, Stanley H.
影响因子:
7.3
作者:
Liu J;Wang F
通讯作者:
Wang F
影响因子:
64.8
作者:
Brian M. Owens
通讯作者:
Brian M. Owens
影响因子:
9.9
作者:
Alexianu, ME;Kozovska, M;Appel, SH
通讯作者:
Appel, SH
影响因子:
5.3
作者:
Keller, A. Florence;Gravel, Mathieu;Kriz, Jasna
通讯作者:
Kriz, Jasna