在阿托皮性皮肤炎和中Cutibacterium acnes细胞外囊泡的潜在功能:比较蛋白质组分析
Tianze Yu1, Jin Chen1, Shi Wu2
1Department of Dermatology, Huashan Hospital, Fudan University, Shanghai, China.
Proteomics. Clinical applications
|April 19, 2024
概括
昆虫细菌 (Cutibacterium acnes) 细胞外囊泡 (EVs) 显示出亚托皮炎 (AD) 和病变之间明显的蛋白质差异. 这些EV表现出不同的免疫调节潜力,影响炎症因素和皮肤屏障标记物.
科学领域:
- 微生物学 微生物学
- 皮肤病学 皮肤病学
- 免疫学 免疫学 免疫学
背景情况:
- 菌 (Cutibacterium acnes) 是一种参与恒温的皮肤共生菌.
- 虽然与与有关,但C. acnes可能通过调节免疫力来预防亚托皮炎 (AD).
- 细菌细胞外囊泡 (EVs) 介导宿主-微生物相互作用.
研究的目的:
- 为了比较C. acnesEVs的蛋白质组概况,这些病变来自阿托皮炎 (AD) 病变,病变和健康皮肤.
- 调查这些EVs在角质细胞中的功能和免疫调节差异.
主要方法:
- 无标签的定量LC-MS/MS和并行反应监测 (PRM) 用于分析C. acnes EVs蛋白质组.
- 用C. acnes EVs治疗正常的人类表皮角质细胞 (NHEK) 和初级角质细胞 (KC).
- 定量实时PCR和西部抹迹测量炎症因素和表皮屏障标记物.
主要成果:
- 从AD病变 (AD-EVs) 和病变 (Acne-EVs) 的C. acnes EVs之间观察到明显的蛋白质学差异,特别是在能量代谢途径中.
- 在AD和中,EV蛋白质概况与异常的脂质分泌模式相关.
- 在角质细胞中,C. acnes EVs差异调节了Th1/Th2炎症因子和表皮屏障标记物,表明了各种免疫调节作用.
结论:
- 在AD-EVs和-EVs之间存在显著的蛋白质学区别.
- 根据其起源 (AD与),C. acnes EVs具有不同的功能和免疫调节特性.
- 这些发现提供了关于C. acnes EVs在皮肤平衡和疾病发病过程中的作用的见解.
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