来自风湿性关节炎患者的CD4+T细胞衍生外体的蛋白质组学分析
Lixin Huang1, Ling Liang2, Zhuyi Ji3
1The Second School of Clinical Medicine, Southern Medical University, Guangzhou, China; Department of Rheumatology and Immunology, Guangdong Second Provincial General Hospital, Guangzhou, China.
International immunopharmacology
|July 9, 2023
概括
在类风湿性关节炎 (RA) 中CD4+T细胞外体的蛋白质组分析揭示了不同的蛋白质配置文件. 与二皮里米丁酶相关的蛋白3 (DPYSL3) 被上调,而蛋白酶激活体复合体子单元1 (PSME1) 被下调,这表明潜在的RA生物标志物.
科学领域:
- 免疫学 免疫学 免疫学
- 蛋白质组学是指蛋白质组学.
- 生物化学 生物化学
背景情况:
- 类风湿性关节炎 (RA) 是一种慢性自身免疫性疾病.
- CD4+ T细胞在RA的发病过程中起着至关重要的作用.
- 来自免疫细胞的外体细胞越来越被认为是疾病的关键媒介.
研究的目的:
- 为了研究与健康对照组相比,RA患者的CD4+T细胞衍生外体中的蛋白质差异.
- 为了确定潜在的蛋白质生物标志物用于RA诊断和发病.
主要方法:
- 使用双重质标 (TMT) 和液体染色体-双重质谱 (LC-MS/MS) 的CD4+T细胞衍生外体的蛋白质定位.
- 通过酶相关免疫吸收试验 (ELISA) 和西布洛特 (WB) 验证关键的差异表达蛋白质.
- 生物信息分析以确定与已识别的蛋白质相关的丰富通路.
主要成果:
- 确定了34种蛋白质的显著差异性表达,其中3种在RA外体上升调和31种下降调.
- 与二胺基酶相关的蛋白3 (DPYSL3) 显著上调.
- 蛋白质酶激活体复合体子单元1 (PSME1) 显著下调.
- 丰富的途径包括基因表达的积极调节,抗原处理和呈现,急性相反应和PI3K-AKT信号传递.
结论:
- CD4+ T 细胞衍生的外体的蛋白质特征为RA 病原体提供了洞察力.
- DPYSL3和PSME1是类风湿性关节炎的潜在新生物标志物.
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