检验医学 ›› 2025, Vol. 40 ›› Issue (10): 933-940.DOI: 10.3969/j.issn.1673-8640.2025.10.001

• 论著 •    下一篇

RA患者外周血单核细胞亚型中组织蛋白酶C表达的变化

罗静, 袁佳仪, 姚小艳, 范列英()   

  1. 同济大学附属东方医院检验科上海 200120
  • 收稿日期:2025-03-21 修回日期:2025-04-21 出版日期:2025-10-30 发布日期:2025-11-07
  • 通讯作者: 范列英,E-mail:flieying@yeah.net
  • 作者简介:罗 静,女,2000年生,硕士,初级技师,主要从事类风湿关节炎发病机制和实验室诊断研究。
  • 基金资助:
    国家自然科学基金项目(81971535)

Changes in cathepsin C expression in peripheral blood monocyte subsets of RA patients

LUO Jing, YUAN Jiayi, YAO Xiaoyan, FAN Lieying()   

  1. Department of Clinical LaboratoryShanghai East Hospital,Tongji UniversityShanghai 200120, China
  • Received:2025-03-21 Revised:2025-04-21 Online:2025-10-30 Published:2025-11-07

摘要:

目的 分析类风湿关节炎(RA)患者外周血单核细胞中组织蛋白酶C(CTSC)表达与RA的关系。方法 选取2023年5月—2024年8月同济大学附属东方医院RA患者78例(RA组)、骨关节炎(OA)患者40例(OA组)、痛风患者38例(痛风组)、系统性红斑狼疮(SLE)患者33例(SLE组)、干燥综合征(SS)患者34例(SS组)、强直性脊柱炎(AS)患者35例(AS组)、银屑病关节炎(PsA)患者9例(PsA组)、健康体检者42名(正常对照组)。收集所有研究对象的临床资料,包括年龄、性别和类风湿因子(RF)、抗环瓜氨酸肽(CCP)抗体检测结果。采用流式细胞术检测30名正常对照者、37例RA患者、21例OA患者和25例痛风患者外周血不同细胞CTSC的表达情况。采用酶联免疫吸附试验(ELISA)检测所有研究对象血清CTSC水平和3例RA患者、3例OA患者关节滑膜液CTSC水平。结果 RA组外周血单核细胞CTSC表达量高于中性粒细胞和淋巴细胞(P<0.05)。RA组单核细胞CTSC表达量高于正常对照组、痛风组和OA组(P<0.05)。在RA组、OA组、痛风组和正常对照组中,中间型单核细胞(IM)和非经典型单核细胞(NCM)CTSC表达量均高于经典型单核细胞(CM)(P<0.05),而IM和NCM表达量差异无统计学意义(P>0.05)。RA组CM、IM和NCM中CTSC表达量均高于OA组、痛风组和正常对照组(P<0.05)。3例RA患者关节滑膜液CTSC水平(167、106、215 ng·mL-1)均高于3例OA患者(28、53、6 ng·mL-1)。RA组血清CTSC水平高于OA组、SLE组、AS组和正常对照组(P<0.05)。结论 RA患者外周血促炎型单核细胞中CTSC呈高表达,其在RA的发病机制中可能具有重要价值。

关键词: 组织蛋白酶C, 类风湿因子, 类风湿关节炎, 单核细胞, 亚型, 诊断

Abstract:

Objective To investigate the relationship between cathepsin C(CTSC) expression in peripheral blood monocytes of patients with rheumatoid arthritis(RA) and RA. Methods A total of 78 RA patients(RA group),40 osteoarthritis(OA) patients(OA group),38 gout patients(gout group),33 systemic lupus erythematosus(SLE) patients(SLE group),34 Sjögren's syndrome(SS) patients(SS group),35 ankylosing spondylitis(AS) patients(AS group),9 psoriatic arthritis(PsA) patients(PsA group) and 42 healthy subjects(healthy control group) were enrolled from May 2023 to August 2024 at Shanghai East Hospital of Tongji University. The clinical data,including age,gender,rheumatoid factor(RF) and anti-cyclic citrullinated peptide(CCP) antibody determination results,were collected. Flow cytometry was used to determine the expression of CTSC in different cells of peripheral blood in 30 healthy subjects,37 RA patients,21 OA patients and 25 gout patients. Enzyme-linked immunosorbent assay(ELISA) was used to determine serum CTSC levels and the CTSC levels in the synovial fluid of 3 RA patients and 3 OA patients. Results The expression of CTSC in peripheral blood monocytes of RA patients was higher than that in neutrophils and lymphocytes(P<0.05). The expression of CTSC in monocytes of RA group was higher than those in healthy control group,gout group and OA group(P<0.05). In RA group,OA group,gout group and healthy control group,the expression of CTSC in intermediate monocytes(IM) and non-classical monocytes(NCM) was higher than that in classical monocytes(CM)(P<0.05),while there was no statistical significance between IM and NCM(P>0.05). The expression of CTSC in CM,IM and NCM of RA patients was higher than those in OA group,gout group and healthy control group(P<0.05). The CTSC levels in the synovial fluid of 3 RA patients(167,106 and 215 ng·mL-1) were higher than those of 3 OA patients(28,53 and 6 ng·mL-1). The serum CTSC level of RA group was higher than those of OA group,SLE group,AS group and healthy control group(P<0.05). Conclusions CTSC is highly expressed in pro-inflammatory monocytes of RA patients,and it may play a role in the pathogenesis of RA.

Key words: Cathepsin C, Rheumatoid factor, Rheumatoid arthritis, Monocyte, Subset, Diagnosis

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