与CGRP相关的神经腺素阿德伦米杜林2促进组织保护性ILC2反应,并限制肠道炎症
Jazib Uddin1,2,3,4,5, Hiroshi Yano1,2,3,4,5, Christopher N Parkhurst1,2,3,4,5
1Jill Roberts Institute for Research in Inflammatory Bowel Disease, New York, NY, USA.
Nature immunology
|August 16, 2025
概括
肠神经元产生上腺素2 (ADM2),这是一种促进第2组先天性淋巴细胞 (ILCs) 组织保护功能的分子. 这条通路对于肠道愈合至关重要,在炎症性肠道疾病中可能会受到损害.
科学领域:
- 神经免疫学 神经免疫学
- 胃肠病学 胃肠病学
- 免疫学 免疫学 免疫学
背景情况:
- 神经免疫电路在屏障表面调节免疫力,但它们在组织保护与炎症中的作用尚不清楚.
- 神经系统影响肠道先天性淋巴细胞 (ILC) 功能的具体机制尚未完全理解.
研究的目的:
- 调查肠道神经元衍生因素在调节肠道免疫力中的作用.
- 确定调节2组先天性淋巴细胞 (ILCs) 组织保护功能的新途径.
主要方法:
- 研究了肠道神经元产生的与素基因相关的相关的阿德伦米杜林2 (ADM2).
- 利用遗传删除模型来评估ADM2受体亚单元缺乏对ILC2功能的影响.
- 在肠道炎症模型中用复合ADM2进行治疗.
- 从患有炎症性肠道疾病的患者的ILC2s中分析了基因表达.
主要成果:
- 肠神经元产生ADM2,该神经元激活了一条促进肠道第2组先天性淋巴细胞 (ILCs) 组织保护功能的途径.
- 删除ADM2受体子单元损害了ILC2反应,减少了安菲瑞古林 (AREG) 生产,并增加了对肠道损伤的敏感性.
- 治疗性ADM2的使用诱导了保护性AREG表达ILC2s,并减少了肠道炎症.
- 在炎症性肠病患者中观察到ADM2受体基因 (CALCRL,RAMP3) 的改变表达和ILC2s中的AREG减少.
结论:
- 确定ADM2-ADM2受体通路是肠道组织保护ILC2功能的关键调节者.
- 这条通路在减轻肠道损伤和炎症方面发挥着至关重要的作用.
- ADM2通路的失调可能有助于炎症性肠道疾病的发病.
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