内分类固醇通过一种依赖质的机制调节肠道神经元-质网络和炎症后的内脏过敏性
Wilmarie Morales-Soto1, Beatriz Thomasi1, Brian D Gulbransen1
1Department of Physiology, Neuroscience Program, Michigan State University, East Lansing, Michigan, USA.
Glia
|August 12, 2024
概括
炎症改变了内分泌大麻素 (eCB) 系统对肠道神经质沟通的控制. 向单糖醇脂酶 (MAGL) 为内脏疼痛和过敏症提供了性别特定的治疗潜力.
科学领域:
- 神经胃肠病学 神经胃肠病学
- 内分泌学 在内分泌学.
- 细胞信号传输 细胞信号传输
背景情况:
- 急性胃肠道炎症会导致肠道功能和疼痛的持续变化.
- 内分离系统是胃肠道疾病的潜在治疗点.
- 了解炎症如何影响肠道神经回路的内分泌大麻素控制至关重要.
研究的目的:
- 为了研究内可纳素信号传递在肠道内的神经质通信中的作用.
- 为了确定炎症和性别如何影响肠道电路中的内分泌大麻素机制.
- 探索向单糖醇脂酶 (MAGL) 在内脏疼痛中的治疗潜力.
主要方法:
- 实地成像,化学遗传学和选择性药物治疗被使用.
- 研究是在健康和结肠炎诱导的小鼠模型中进行的 (Wnt1Cre;GCaMP5g-tdT;GFAP::hM3Dq,Trpv1Cre;GCaMP5gtdT,Sox10CreERT2;Mgllf/f).
- 评估了质反应,肠道神经元活动,感受器敏感性和体内内部疼痛.
主要成果:
- 内分泌大麻素信号表现出肠道神经质通信的性二态调节.
- 在男性和女性中,MAGL抑制改变了结肠炎后的质反应能力.
- 炎症增加了 nociceptor 的敏感性;阻断MAGL和删除质MAGL改善了女性的内脏过敏.
结论:
- 性和炎症显著影响肠道质细胞和神经元之间的内分泌酶介导的细胞间通信.
- 向质MAGL提供了一种性别依赖的治疗策略,用于管理内脏疼痛和过敏症.
- 这些发现凸显了在神经胃肠病学中将性别视为生物变量的重要性.
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