巨细胞 - 质细胞相互作用调节在西尼罗河病毒感染期间肠道神经元的免疫损伤
Hana Janova1,2, Fang R Zhao1, Ali Akgul1
1Department of Medicine, Washington University School of Medicine, Saint Louis, MO 63110.
概括
在肠道内居住的巨细胞保护神经元免受病毒损伤. 在西尼罗病毒感染期间削弱这些巨细胞会通过改变质细胞反应,使炎症和神经元损伤恶化.
科学领域:
- 神经免疫学 神经免疫学
- 胃肠病学 胃肠病学
- 病毒学 病毒学
背景情况:
- 功能性胃肠道疾病很常见,并且与损害神经系统的感染有关.
- 保护肠道神经系统免受感染引起的炎症的机制尚不清楚.
研究的目的:
- 在消化道感染西尼罗病毒 (WNV) 期间调查神经元-质-巨细胞相互作用.
- 了解居民巨细胞如何调节免疫反应并保护肠道神经元.
主要方法:
- 使用了西尼罗河病毒 (WNV) 感染的小鼠模型.
- 在肠道巨细胞上进行RNA测序.
- 使用药理性消耗居民巨细胞.
- 评估免疫细胞招募和神经元损伤.
主要成果:
- 在居住肌肉巨细胞中,WNV感染诱导了抗病毒和炎症基因表达.
- 巨细胞枯竭并没有改变WNV负载,而是放大了质前炎性反应.
- 增加化学吸引剂的产生导致更多的T细胞和中性粒细胞的招募,加剧神经元损伤.
结论:
- 居住肌肉巨细胞在肠道病毒感染期间控制质驱动的炎症至关重要.
- 这些巨细胞对肠道神经元起着保护作用,防止免疫媒介损伤.
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