氨酸 - 氨基氨酸 - 阿尔多素系统调节了瘤瘤炎症 细粒体炎症
Elliott D Crouser1, Mark W Julian1, Landon W Locke2
1Division of Pulmonary, Critical Care, and Sleep Medicine, The Dorothy M. Davis Heart and Lung Research Institute.
概括
氨酸- ангиотензин- алдостерон系统 (RAAS) 驱动了型硬化症颗粒瘤的形成. 抑制RAAS成分显著减少了颗粒瘤的大小和炎症,这表明了这种疾病的新治疗点.
科学领域:
- 免疫学 免疫学 免疫学
- 内分泌学 在内分泌学.
- 肺部病理学 肺部病理学
背景情况:
- 沙尔科病是一个颗粒状的疾病,病因不明.
- 升高的血管激素转化酶1 (ACE1) 水平是沙尔科毒症的特征.
- 氨酸 - ангиотензин - 氨酸系统 (RAAS) 调节氨酸,通过矿物质皮质体受体促进炎症.
研究的目的:
- 为了研究RAAS在沙丘症粒瘤形成和相关的炎症反应中的作用.
- 为了确定阿尔多斯特是否在型硬化症颗粒瘤中产生.
主要方法:
- 使用了型粉症粒瘤的ex vivo模型.
- 在外周血液单核细胞中测量了阿尔多素的产生和CYP11B2酶的表达.
- 评估了ACE1,血管增生素1型受体和矿物质皮质类受体抑制剂对花瘤形成和细胞因子水平的影响.
主要成果:
- 沙尔科毒症粒瘤自发地产生了阿尔多,在形成过程中水平增加.
- 在颗粒瘤发育过程中,对外围血液单核细胞的CYP11B2表达被上调.
- 抑制ACE1,血管激素1型受体和矿物质皮质体受体的抑制剂显著降低了颗粒瘤区域和关键炎症细胞因子 (TNFα,IL-1β,IFNγ,IL-10).
结论:
- 该RAAS在型硬化症颗粒瘤中活跃.
- 在RAAS显著促进早期颗粒瘤的发展和炎症.
- 准RAAS是治疗沙丘病的潜在治疗策略.
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