激活PGE2-EP2通路作为治疗eosinophilic鼻炎的潜在药物标
Kyohei Horikiri1,2, Yoshitaka Taketomi2, Kenji Kondo1
1Department of Otolaryngology and Head and Neck Surgery, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan.
在小鼠中微小的PGE合成酶-1缺陷模仿了人类的eosinophilic慢性鼻炎 (ECRS). 使用像omidenepag isopropyl这样的药物激活PGE2-EP2通路,有效地减少了鼻氨基酸细胞的炎症.
科学领域:
- 免疫学 免疫学 免疫学
- 分子生物学分子生物学
- 鼻科 鼻科是指鼻科的专家.
背景情况:
- 乳性慢性鼻炎 (ECRS) 治疗有局限性,缺乏合适的动物模型阻碍了对其分子机制的理解.
- ECRS通常与阿司匹林诱导的喘有关,这表明脂质介质失调在鼻腔病理学中的作用.
研究的目的:
- 调查微小体PGE合成酶-1 (PTGES) 在ECRS病原发生中的作用.
- 为ECRS研究开发一个更相关的小鼠模型.
- 探索ECRS的潜在治疗目标.
主要方法:
- 在人类ECRS患者中分析PTGES表达.
- 对缺乏PTGES的小鼠进行了组织学,转录学和脂管学分析.
- 在应对挑战时,评估鼻腔内异osinophil 透和过敏介质表达.
- 在小鼠模型中评估EP2/EP4受体激动剂,包括奥米德内帕格异烯.
主要成果:
- 在ECRS患者中,PTGES表达显著下降.
- 在小鼠中,PTGES缺乏导致了氨基的增加,2型细胞因子和改变的脂质介质.
- 通过鼻子注射EP2/EP4激动剂,如omidenepag isopropyl,显著降低了缺陷的小鼠中的乙素透.
结论:
- 缺乏PTGES的小鼠代表了人类ECRS的一个相关模型.
- 激活PGE2-EP2通路是阻止eosinophilic鼻炎的有希望的策略.
- 奥米德内帕格异烯显示出作为ECRS治疗的重新定位的潜力.
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