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Journal of ZheJiang University(Medical Science)  2016, Vol. 45 Issue (3): 281-286    DOI: 10.3785/j.issn.1008-9292.2016.05.11
Serum levels of Th1/Th2 cytokines in children with non-systemic juvenile idiopathic arthritis
JIANG Lijiao1,2, LU Meiping1, GUO Li1, WU Jianqiang1, ZOU Lixia1, XU Yiping1
1. Department of Rheumatology Immunology & Allergy, the Children's Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China;
2. Department of Pediatrics, Zhejiang Taizhou Hospital, Linhai 317000, Zhejiang Province, China
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Objective: To investigate the serum levels of Th1/Th2 cytokines in children with non-systemic juvenile onset idiopathic arthritis (non-SOJIA). Methods: Clinical data of 41 children with non-SOJIA, including 11 cases of polyarthritis, 10 cases of oligoarthritis and 20 cases of enthesitis related JIA (ERA), admitted in Children's Hospital of Zhejiang University School of Medicine during November 2012 and May 2015 were retrospectively analyzed. Serum levels of Th1/Th2 cytokines including IL-2, IL-4, IL-6, IL-10, TNF-α and IFN-γ were measured by flow cytometry in patients with non-SOJIA, and compared with those in patients with SOJIA (SOJIA group, n=85) and healthy children (control group, n=202); their correlations with erythrocyte sedimentation rate and C reactive protein and CRP were analyzed. Results: Compared with the healthy control group, serum levels of IL-2, IL-6 and IFN-γ were significantly increased in patients with non-SOJIA (2.9 vs. 2.6 pg/mL, 9.9 vs. 6.4 pg/mL, 6.3 vs. 5.1 pg/mL, allP<0.05),while levels of TNF-α and IL-10 were significantly decreased (2.7 vs. 3.9 pg/mL, 2.9 vs. 7.1 pg/mL, both P<0.01). Compared with the SOJIA group, serum levels of IL-6 and IL-10 were significantly decreased in patients with non-SOJIA (9.9 vs. 33.5 pg/mL, 2.9 vs. 4.1 pg/mL, both P<0.01), while levels of IL-4 and IL-10 were significantly increased (3.1 vs. 2.3 pg/mL, 6.3 vs. 4.4 pg/mL, both P<0.05). Serum levels of IL-6 in patients with polyarthritis or ERA were higher than that in patients with oligoarthritis (12.7 and 11.0 vs. 4.2 pg/mL, both P<0.05). A positive correlation of IL-6 or TNF-α level with C reactive protein was observed in patients with ERA. Conclusions: The results indicate that Th1/Th2 imbalance and Th1 predominance may exist in children with non-SOJIA; and IL-6 may be involved in the pathogenesis of non-SOJIA children with polyarthritis.

Key wordsArthritis, juvenile rheumatoid/physiopathology      Th1 cells/immunology      Th2 cells/immunology      Interferon type II/blood      Cytokines/blood      Tumor necrosis factor-alpha /blood      Interleukins/blood     
Received: 11 January 2016     
CLC:  R593.2  
Cite this article:

JIANG Lijiao, LU Meiping, GUO Li, WU Jianqiang, ZOU Lixia, XU Yiping. Serum levels of Th1/Th2 cytokines in children with non-systemic juvenile idiopathic arthritis. Journal of ZheJiang University(Medical Science), 2016, 45(3): 281-286.

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目的:分析非全身型幼年特发性关节炎(SOJIA)患儿外周血T辅助细胞1/2(Th1/Th2)细胞因子水平变化特点,了解相关病理机制,以期为治疗决策提供依据。方法:收集2012年11月至2015年5月浙江大学医学院附属儿童医院活动期非SOJIA患儿41例(非SOJIA组,n=41)的临床资料,其中多关节炎型11例,少关节炎型10例,附着点炎型20例。采用流式细胞术检测患儿血清IL-2、IL-4、IL-6、IL-10、TNF-α和γ干扰素水平,并与同期85例活动期SOJIA患儿及202名健康体检儿童(正常对照组,n=202)比较,同时分析非SOJIA患儿血清细胞因子水平与红细胞沉降率、C反应蛋白的相关性。结果:与正常对照组比较,非SOJIA组患儿血清IL-2、IL-6、γ干扰素升高(2.9 pg/mL与2.6 pg/mL,9.9 pg/mL与6.4 pg/mL,6.3 pg/mL与5.1 pg/mL,均P<0.05),而TNF-α、IL-10降低(2.7 pg/mL与3.9 pg/mL,2.9 pg/mL与7.1 pg/mL,均P<0.01);与SOJIA组比较,非SOJIA组IL-6、IL-10降低(9.9 pg/mL与33.5 pg/mL,2.9 pg/mL与4.1 pg/mL,均P<0.01),IL-4、γ干扰素升高(3.1 pg/mL与2.3 pg/mL,6.3 pg/mL与4.4 pg/mL,均P<0.05)。同时非SOJIA组附着点炎型、多关节炎型患儿血清IL-6水平高于少关节炎型(12.7 pg/mL、11.0 pg/mL与4.2 pg/mL,均P<0.05);附着点炎型患儿血清IL-6、TNF-α水平与超敏CRP呈正相关。结论:非SOJIA患儿Th1/Th2细胞因子失衡且Th1细胞占优势,血清IL-6可能参与非SOJIA的发病机制。

关键词: 关节炎,幼年型类风湿/病理生理学,  Th1细胞/免疫学,  Th2细胞/免疫学,  干扰素Ⅱ型/血液,  细胞因子类/血液,  肿瘤坏死因子α/血液,  白细胞介素类/血液 
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