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首页> 外文期刊>Neuron >Il10 Deficiency Rebalances Innate Immunity to Mitigate Alzheimer-Like Pathology
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Il10 Deficiency Rebalances Innate Immunity to Mitigate Alzheimer-Like Pathology

机译:Il10缺乏症重新平衡了先天免疫力,减轻了阿尔茨海默氏病样的病理

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摘要

The impact of inflammation suppressor pathways on Alzheimer's disease (AD) evolution remains poorly understood. Human genetic evidence suggests involvement of the cardinal anti-inflammatory cytokine, interleukin-10 (IL10). We crossed the APP/PS1 mouse model of cerebral amyloidosis with a mouse deficient in Il10 (APP/PS1(+)Il10(-/-)). Quantitative in silico 3D modeling revealed activated Ab phagocytic microglia in APP/PS1(+)Il10(-/-) mice that restricted cerebral amyloidosis. Genome-wide RNA sequencing of APP/PS1(+)Il10(-/-) brains showed selective modulation of innate immune genes that drive neuroinflammation. Il10 deficiency preserved synaptic integrity and mitigated cognitive disturbance in APP/PS1 mice. In vitro knockdown of microglial Il10-Stat3 signaling endorsed A beta phagocytosis, while exogenous IL-10 had the converse effect. Il10 deficiency also partially overcame inhibition of microglial Ab uptake by human Apolipoprotein E. Finally, the IL-10 signaling pathway was abnormally elevated in AD patient brains. Our results suggest that "rebalancing'' innate immunity by blocking the IL-10 anti-inflammatory response may be therapeutically relevant for AD.
机译:炎症抑制途径对阿尔茨海默氏病(AD)演变的影响仍然知之甚少。人类遗传学证据表明,主要的抗炎细胞因子白介素10(IL10)参与其中。我们用缺乏Il10(APP / PS1(+)Il10(-/-))的小鼠杂交了脑淀粉样变性的APP / PS1小鼠模型。定量计算机3D建模显示在APP / PS1(+)Il10(-/-)小鼠中激活的Ab吞噬小胶质细胞限制了大脑淀粉样变性。 APP / PS1(+)Il10(-/-)大脑的全基因组RNA测序显示驱动神经发炎的先天免疫基因的选择性调节。 Il10缺乏症可保持APP / PS1小鼠的突触完整性并减轻认知障碍。体外敲除小胶质细胞Il10-Stat3信号通路支持Aβ吞噬作用,而外源性IL-10具有相反的作用。 Il10缺乏症也部分克服了人类载脂蛋白E对小胶质Ab摄取的抑制作用。最后,AD患者大脑中的IL-10信号通路异常升高。我们的结果表明,通过阻断IL-10抗炎反应来“平衡”先天免疫可能与AD在治疗上有关。

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