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Exp Neurol:如何缓解中风带来的大脑损伤?-肺脏是关键!

2018-02-05 佚名 “细胞”微信号

中风患者如果其免疫细胞进入大脑,则会导致疾病的恶化。来自罗彻斯特大学医学院的研究者们目前正视图利用肺脏调节机体的免疫反应,进而缓解中风后的二次脑损伤的严重程度。

中风患者如果其免疫细胞进入大脑,则会导致疾病的恶化。来自罗彻斯特大学医学院的研究者们目前正视图利用肺脏调节机体的免疫反应,进而缓解中风后的二次脑损伤的严重程度。

"我们越来越清楚肺脏是调节机体免疫系统的重要部位,因此能够作为治疗中风二次损伤的潜在靶点",来自URMC的神经学家Marc Halterman博士说道:"我们目前正在尝试一系列抑制免疫反应的药物,从而对大脑以及其它器官的损伤产生保护效果"。

通过建立小鼠中风模型,作者发现了与人类患者相似的现象:中风发病过程中大脑血管出现了破裂,进而大脑中的一些包裹神经元与胶质细胞的蛋白质泄漏进入血管中。免疫系统识别这些分子之后,将引发强烈的免疫信号,进而迁移进入大脑对大脑组织产生自体免疫反应。

中性粒细胞是免疫反应的重要参与者,而由于肺脏会持续性地有血流循环经过,因此它是中性粒细胞的重要储藏地。激活的中性粒细胞同时也会对肺脏产生炎症反应,因此作者认为这有可能是中风后患者会出现肺炎症状的本质。激活中性粒细胞造成的损伤同时会扩散到其它区域,例如肾脏以及肝脏等等。

"当中风引发的非感染性免疫反应发生后,中性粒细胞将过度激活", Halterman说道:"这些细胞如果找不到特定的感染源,将会对健康组织产生反应,进而导致组织损伤的发生"。对这一机制的理解将帮助研究者们开发治疗中风引发的二次机体损伤的新疗法。

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    2019-01-19 yinhl1978
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    2018-02-10 Ramsey

    整体医学

    0

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    2018-02-09 Ramsey

    学习了

    0

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