Microglia-dependent neuroprotective effects of 4-octyl itaconate against rotenone-and MPP+-induced neurotoxicity in Parkinson's disease.

Microglia-dependent neuroprotective effects of 4-octyl itaconate against rotenone-and MPP+-induced neurotoxicity in Parkinson's disease.
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DOI:
10.1038/s41598-023-42813-8
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发表时间:
2023-09-20
期刊:
影响因子:
4.6
通讯作者:
--
中科院分区:
综合性期刊3区
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--
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慢性神经炎症与帕金森病(PD)的发病机制有关,帕金森病是最常见的神经退行性疾病之一。衣康酸是一种通过免疫应答基因1活性从三羧酸循环中衍生的内源性代谢产物,可能通过激活核因子红细胞2相关因子2(Nrf 2)抗氧化途径介导抗炎反应。本研究探讨了4-辛基衣康酸酯(OI),衣康酸酯的细胞渗透性衍生物,在PD细胞模型的神经保护潜力。OI不仅抑制了脂多糖诱导的小鼠BV 2小胶质细胞中诱导型一氧化氮合酶、环氧合酶-2和细胞因子释放的促炎级联反应,而且还激活了这些细胞中的Nrf 2信号通路及其下游靶点。来自OI处理的BV 2细胞的条件培养基保护神经2A细胞免受鱼藤酮和MPP+诱导的神经毒性。总之,我们的研究结果支持OI在PD中的抗炎神经保护潜力。
Chronic neuroinflammation is implicated in the pathogenesis of Parkinson’s disease (PD), one of the most common neurodegenerative diseases. Itaconate, an endogenous metabolite derived from the tricarboxylic acid cycle via immune‐responsive gene 1 activity, may mediate anti-inflammatory responses by activation of the nuclear factor erythroid 2-related factor 2 (Nrf2) antioxidant pathway. This study investigates the neuroprotective potential of 4-octyl itaconate (OI), a cell-permeable derivative of itaconate, in cellular models of PD. OI not only suppressed lipopolysaccharide-induced proinflammatory cascades of inducible nitric oxide synthase, cyclooxygenase-2, and cytokines release in mouse BV2 microglial cells but also activated the Nrf2 signaling pathway and its downstream targets in these cells. Conditioned medium derived from OI-treated BV2 cells protected against rotenone- and MPP+-induced neurotoxicity in Neuro 2A cells. Overall, our findings support the anti-inflammatory neuroprotective potential of OI in PD.
Itaconate连接琥珀酸脱氢酶与巨噬细胞代谢重塑和调节炎症的联系。
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