细胞因子在喘中重新编程呼吸道感觉神经元
Theo Crosson1, Shreyas Bhat2, Jo-Chiao Wang1
1Département de Pharmacologie et Physiologie, Université de Montréal, Montreal, QC, Canada.
过敏性呼吸道炎症会重编程感应神经元,使它们成为促炎性. 涉及神经Y受体1 (NPY1R) 的补偿机制限制了过敏反应期间的感觉神经元活动.
科学领域:
- 神经科学是一个神经科学.
- 免疫学 免疫学 免疫学
- 呼吸系统医学 呼吸系统医学
背景情况:
- 认知受体神经元检测环境危险,但有助于过敏反应.
- 阴道感受器促进免疫细胞的透和过敏的支气管过敏.
- 在过敏中, nociceptor 前炎性重编程的机制尚不清楚.
研究的目的:
- 在过敏性炎症期间调查呼吸道受体的分子形状变化.
- 在过敏呼吸道炎症中识别驱动 nociceptor 重编程的信号.
- 描述神经Y受体1 (NPY1R) 在这个过程中的作用.
主要方法:
- 在小鼠模型中进行逆行追踪和血统报告.
- 卵胺诱导的过敏气道炎症模型.
- 查细胞因子和神经,包括IL-13和BDNF.
- 肺免疫细胞的单细胞RNA测序.
- NPY1R敲除和化学废除可感受神经元.
主要成果:
- 确定了一种特定的类型的炎症性阴道感受器,内化呼吸道.
- 在这些神经元中发现了神经Y受体1 (NPY1R) 的上调.
- IL-13,IL-1β和BDNF通过JAK/STAT6通路部分驱动 nociceptor重编程.
- 神经Y (NPY) 在支气管支气管液中释放,限制了恶感受体的刺激性.
- 在鼻受体中NPY1R淘汰改变了喘小鼠的T细胞透.
结论:
- 过敏性呼吸道炎症将呼吸道感应神经元重新编程为一种亲炎性表型.
- 一个涉及NPY1R激活的补偿机制限制了 nociceptor神经元的活动.
- 准NPY1R可能为过敏呼吸道疾病提供治疗策略.
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