免疫检查点抑制会扰乱神经免疫平衡,并损害认知功能
Onwodi V Ifejeokwu1, An H Do1, Sanad M El Khatib1
1Department of Anatomy & Neurobiology, School of Medicine, University of California Irvine, Irvine, CA, 92697, USA.
概括
联合免疫检查点抑制剂 (ICI),如抗CTLA-4和抗PD-1,破坏大脑功能,导致认知障碍. 向微质激活可以在癌症治疗期间保持中枢神经系统 (CNS) 的健康.
科学领域:
- 神经免疫学 神经免疫学
- 在瘤学瘤学.
- 免疫治疗是一种免疫疗法.
背景情况:
- 针对CTLA-4和PD-1的免疫检查点抑制剂 (ICI) 提高了癌症存活率,但可以破坏中枢神经系统 (CNS) 稳态.
- 在接受ICI治疗的癌症幸存者中报告了神经退行性影响和认知障碍,但其潜在机制仍然不清楚.
研究的目的:
- 在小鼠黑色素瘤模型中研究结合CTLA-4和PD-1阻塞的神经免疫机制和认知影响.
- 为了确定ICI诱导的神经退行是否依赖于瘤或是组合ICI治疗的直接后果.
主要方法:
- 利用一种与结合性抗CTLA-4和抗PD-1治疗的小鼠黑色素瘤模型.
- 评估认知功能,包括治疗后的学习,记忆和记忆巩固.
- 分析了神经炎症,突触完整性,髓水平和大脑内的免疫细胞群.
主要成果:
- 组合性ICI破坏了突触完整性,并减少了瘤携带和非癌症小鼠的髓,独立于神经发生.
- ICI治疗选择性地损害了依赖海马的认知能力,与大脑T细胞增加和微质激活相关.
- 一个实验性自身免疫脑膜炎模型显示,ICI组合会加剧中枢神经系统自身免疫力,表明瘤独立的神经炎症.
结论:
- 结合CTLA-4和PD-1阻断会破坏神经免疫网络的稳定,激活小质细胞,导致长期的神经退行和认知缺陷.
- 选择性抑制微质激活是一种潜在的策略,可以减轻ICI相关的神经毒性,同时保持治疗疗效.
关键词:
脑子 脑子 大脑 脑子认知功能 认知功能免疫检查点 抑制 抑制黑色素瘤是一种黑色素瘤.微质细胞中的微质细胞骨髓蛋白是什么意思 骨髓蛋白是什么意思神经炎症是一种神经炎症.发生突触损失.一个T细胞细胞.这是一种抗CTLA-4的药物.这是一种抗PD-1药物.更多相关视频
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