在中风中通过sLex-glycosylated补充抑制蛋白保护神经元
1Columbia University, College of Physicians and Surgeons, 630 West 168th Street, New York, NY 10032, USA.
概括
一种针对补充激活和选择粘附通路的新型混合分子在中风模型中有效地减少了脑损伤. 这种双重作用的方法为缺血性中风提供了一个有前途的治疗策略.
科学领域:
- 神经科学是一个神经科学.
- 免疫学 免疫学 免疫学
- 生物化学 生物化学
背景情况:
- 选择素通过促进炎症细胞的粘附来调解中风中的组织损伤.
- 缺血神经元表达C1q,可能标记它们的补充介导损伤或清除.
研究的目的:
- 开发和评估一种混合分子,可以抑制补体激活和选择性中介粘附,用于中风治疗.
主要方法:
- 通过用sialyl Lewis x (sCR1sLex) 对溶性补充受体-1 (sCR1) 进行糖化,制造了一个混合分子.
- 在缺血性中风模型中使用sCR1和sCR1sLex.
- 评估了分子局部化,炎症细胞积累和心脏病发作量.
主要成果:
- sCR1和sCR1sLex局部化到缺血性大脑微血管和表达C1q的神经元.
- 这两种分子都抑制了中性粒细胞和血小板的积累.
- sCR1sLex显著降低了脑梗塞体积,并从sialyl Lewis x 糖化中获得了额外的好处.
结论:
- 同时抑制补体激活和选择中介粘附是缺血性中风的可行的治疗策略.
- 混合分子sCR1sLex在减少与中风有关的脑损伤方面表现出有效性.
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