系统性抑制可溶性TNF显著改变质细胞种群,导致经过实验性中风后改善髓完整性和更好的功能结果
Estrid Thougaard1, Pernille Vinther Nielsen2, Stefano Raffaele3
1Neurobiology Research, Department of Molecular Medicine, University of Southern Denmark, Campusvej 55, 5230 Odense M, Denmark; BRIDGE - Brain Research - Inter Disciplinary Guided Excellence, Department of Clinical Research, University of Southern Denmark, Campusvej 55, 5230 Odense M, Denmark.
概括
用XPro1595抑制可溶性瘤亡因子 (TNF) 改善了小鼠在缺血性中风后的治疗结果. 这种治疗减少了炎症,并在亚急性阶段增强了认知功能和运动恢复.
科学领域:
- 神经科学是一个神经科学.
- 免疫学 免疫学 免疫学
- 药理学 药理学是指药理学的学科.
背景情况:
- 缺血性中风引发显著的神经炎症,瘤亡因子 (TNF) 起着关键作用.
- 针对可溶性TNF (solTNF) 和其受体 (TNFR1) 途径是神经炎症疾病的有前途的治疗策略.
- 以前的研究表明XPro1595,一种选择性solTNF抑制剂,在实验性中风的急性阶段有益.
研究的目的:
- 为了研究solTNF抑制对炎症,功能恢复和在缺血性中风后的亚急性阶段的认知缺陷的长期影响.
- 评估XPro1595对质细胞反应,髓蛋白完整性和外周炎症的影响.
- 评估solTNF抑制对海马前脑衍生神经营养因子 (BDNF) 水平和认知表现的影响.
主要方法:
- 在实验性缺血性中风后给小鼠服用XPro1595.
- 在中风后7天和14天对质细胞形态和群体 (微细胞,星体细胞,寡细胞) 的分析.
- 评估髓完整性和寡细胞脂质配置文件.
- 系统性免疫细胞数量的量化.
- 测量海马中的亲BDNF水平.
- 评估认知功能 (识别记忆) 和运动不对称.
主要成果:
- XPro1595治疗改变了质细胞的反应,包括微质细胞形态和天体细胞/质细胞群.
- 抑制剂上调了寡类细胞的脂质水平,并改善了髓完整性,尽管前髓化寡类细胞的数量有所减少.
- 系统性免疫细胞的减少表明周围炎症反应减弱.
- 增加的海马亲BDNF水平与改善的识别记忆和减少的运动不对称性相关.
结论:
- 使用XPro1595的可溶性TNF抑制表明,在缺血性中风的急性阶段之外,它具有持续的保护作用.
- 该疗法调节神经炎症,促进髓修复,并增强认知和运动功能.
- 向solTNF代表了一种可行的治疗方法,用于管理缺血性中风的长期后果.
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