一种新型的宏化物EP395,抗菌活性降低,对呼吸上皮质屏障有增强作用
Thorarinn Gudjonsson1, Jon Petur Joelsson1, Ari Jon Arason1
1EpiEndo Pharmaceuticals Ehf., Bjargargata 1, 102, Reykjavik, Iceland; University of Iceland, Faculty of Medicine and Landspitali, 101, Reykjavik, Iceland.
像EP395这样的新型巴里奥利德可以增强呼吸道上皮质屏障的完整性,而不会引起细菌耐药性. 这为慢性呼吸道疾病提供了一个有前途的治疗策略,与长期使用类药物不同.
科学领域:
- 肺部医学 肺部医学
- 细胞生物学 细胞生物学
- 药理学 药理学是指药理学的学科.
背景情况:
- 表皮屏障功能障碍是炎症性肺部疾病的核心,加剧疾病.
- 像阿齐思罗米 (AZM) 这样的宏类药物治疗恶化,但长期使用可能会导致细菌耐药性.
- AZM的好处包括抗微生物和免疫调节作用,以及改善表皮屏障功能.
研究的目的:
- 引入一种新型的化合物类别",巴里奥利德",是AZM的类似物.
- 评估化合物EP395对促进呼吸道上皮质屏障完整性的能力.
- 为了评估EP395的有效性,而不是诱导细菌耐药性.
主要方法:
- 在支气管上皮细胞上EP395的体外评估 (VA10).
- 通过跨皮质电阻和细胞流量测量上皮质屏障完整性的测量.
- 分析紧结蛋白的表达,表皮分化和叶片体的形成.
- 在暴露于二氧化硫的小鼠体内研究,以评估EP395的保护作用.
主要成果:
- EP395 (高达100μM) 没有影响支气管上皮细胞活力.
- 三周的EP395治疗显著增强了上皮质屏障的完整性.
- EP395增加了紧密结合蛋白,诱导了表皮分化和叶片体的形成.
- 在小鼠的EP395预处理减少了支气管支气管支气管洗液中的蛋白质扩散.
结论:
- EP395是一种屏障物质,有效地增强了呼吸道上皮质屏障的完整性.
- EP395证明了慢性呼吸道疾病的治疗潜力.
- 这种化合物提供了一种改善屏障功能的策略,而不存在抗生素耐药性的风险.
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