进入大脑的T细胞透引发了小鼠肺功能障碍与Cryptococcus相关的IRIS
Tasuku Kawano1,2, Jinyan Zhou1,3, Shehata Anwar1,4
1Department of Comparative Biosciences, The University of Illinois at Urbana-Champaign, 2001 South Lincoln Avenue, Urbana, IL, 61802, USA.
Nature communications
|June 28, 2023
概括
加密球菌相关的免疫复合炎症综合征 (C-IRIS) 在免疫功能低下的患者中引起肺部应急症. 通过CCL8-CCR5轴的CD4+T细胞进入大脑驱动这种功能障碍,提供治疗点.
科学领域:
- 免疫学 免疫学 免疫学
- 神经科学是一个神经科学.
- 传染性疾病 传染性疾病
背景情况:
- 加密球菌相关的免疫复合炎症综合征 (C-IRIS) 是抗逆转录病毒治疗免疫功能低下个体的重大并发症.
- 肺部应急是C-IRIS的关键症状,影响患者的康复.
- 与C-IRIS相关的肺功能障碍背后的确切机制仍然不完全理解.
研究的目的:
- 在Cryptococcus相关免疫复合炎症综合征 (C-IRIS) 的小鼠模型中阐明驱动肺功能障碍的免疫和神经机制.
- 确定关键的分子通路和细胞相互作用,涉及C-IRIS诱导的肺部并发症.
主要方法:
- 利用以前建立的小鼠模型揭示C-IRIS,涉及CnH99前感染和CD4+T细胞的采用转移.
- 研究了CCL8-CCR5轴在CD4+T细胞向大脑迁移中的作用.
- 评估了核通道单体 (NTS) 中的神经元损伤和CD4+ T细胞中乙B3和半林6B的表达.
主要成果:
- 证明C-IRIS中的肺功能障碍与CD4+T细胞透到大脑有关.
- 确定了CCL8-CCR5轴作为中介这种T细胞迁移的关键途径.
- 发现CD4+T细胞中高调的以林B3和半林6B有助于NTS神经元损伤和断开连接.
结论:
- 在C-IRIS中,肺功能障碍与通过CCL8-CCR5轴向大脑的CD4+T细胞贩运有机联系.
- 通过T细胞上的特定分子线索介导的NTS中神经元损伤在C-IRIS病原发生中起作用.
- 这些发现突出了缓解C-IRIS肺部并发症的潜在治疗目标.
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