血FXII升高与ANCA相关血管炎的疾病活性有关:中国西部的一项回顾性横截面研究
Sha-Sha Chen1, Hao-Jun Luo2, Huan Li3
1Department of Nephrology, Sichuan Provincial People's Hospital, Sichuan Clinical Research Center for Kidney Diseases, Clinical Immunology Translational Medicine Key Laboratory of Sichuan Province, University of Electronic Science and Technology of China, Chengdu 610072, Sichuan, China.
International immunopharmacology
|October 22, 2023
概括
血XII因子 (FXII) 水平在活性抗中性粒细胞体抗体 (ANCA) 相关的血管炎 (AAV) 中升高. 增加的FXII水平与疾病活性和脏活检结果相关,表明FXII是活性AAV的潜在生物标志物.
科学领域:
- 腎臟病學 (nephrology) 是一種醫學專業.
- 免疫学 免疫学 免疫学
- 类风湿病学 类风湿病学
背景情况:
- 反中性细胞质抗体 (ANCA) 相关的血管炎 (AAV) 是一种严重的自身免疫性疾病,影响小血管.
- 准确评估AAV疾病活性对于及时有效治疗至关重要.
- 目前用于AAV活动的生物标志物在灵敏度和特异性方面存在限制.
研究的目的:
- 调查血XII因子 (FXII) 水平是否反映了AAV患者的疾病活性.
- 评估血FXII水平与AAV中的临床/组织学疾病标志物之间的关联.
- 确定血FXII作为活性AAV的生物标志物的诊断潜力.
主要方法:
- 用ELISA测量了127名AAV患者的血FXII水平,并与健康个体和缓解期患者进行了比较.
- 在血FXII水平和临床参数 (肌素,CRP,尿红血细胞,WBC) 和疾病活性得分之间进行了相关性分析.
- 免疫光和免疫组织化学被用于评估AAV患者组织中的FXII和髓氧化酶 (MPO) 表达.
主要成果:
- 与缓解和健康对照组相比,活跃AAV患者的血FXII水平显著更高.
- 血FXII水平与疾病活动标志物呈正相关性,包括肌素,CRP,MPO-ANCA标位,以及活检上的损伤指标.
- 血FXII的最佳切断值 (24.5μg/mL) 显示出高灵敏度 (81%) 和特异性 (82%) 检测活性AAV,优于常规生物标志物.
结论:
- 血FXII水平升高表明AAV的临床和组织学性疾病活性.
- 血FXII作为活性AAV的敏感和特定的生物标志物.
- FXII测量为监测AAV患者的疾病活动和指导治疗决策提供了一个有前途的工具.
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