The clinical significance of serum CXC-chemokine ligand 13 in primary Sj?gren's syndrome

Ben LI; Dan LI; Luan XUE

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The clinical significance of serum CXC-chemokine ligand 13 in primary Sj?gren's syndrome

VernacularTitle:外周血CXC型趋化因子配体13检测在原发性干燥综合征患者中的临床意义
Author: Ben LI ¹ ; Dan LI ; Luan XUE
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1. 上海中医药大学附属岳阳中西医结合医院风湿科　200437
From: Chinese Journal of Rheumatology 2020;24(2):101-106
CountryChina
Language:Chinese
Abstract: Objective:To investigate the clinical significance of serum CXCL13 in primary Sj?gren's syndrome (pSS).Methods:Thirty patients with pSS were enrolled as pSS group and 30 healthy individuals were selected as control group. Serum CXC-chemokine ligand 13 (CXCL13) level were detected by enzyme- linked immuno sorbent assay (ELISA), which was analyzed with the related immune parameters (eg. B cell pro-portion, immunoglobulin (Ig)G, IgA, IgM, complement (C)3, C4 and autoantibodies), the index of gland structure and function, and the related disease index of pSS[EULAR Sj?gren's syndrome disease activity index (ESSDAI), EULAR Sjogren's syndrome patient reported inde (ESSPRI)] by Pearson or Spearman analysis method.Results:The level of serum CXCL13 in pSS patients [(139±94) pg/ml]was significantly higher than that in healthy individuals [(36±20) pg/ml] ( t=5.838, P<0.01). The level of serum CXCL13 was positively cor-related with the proportion of B cells ( r=0.364, P=0.048), the level of serum IgG ( r=0.369, P=0.045), focus score ( r=0.592, P=0.001), ESSDAI ( r=0.415, P=0.023) and ESSPRI ( r=0.431, P=0.017). Meanwhile, it was negatively correlated with unstimulated salivary flow rate ( r=-0.381, P=0.038). There were 24 pSS patients with systemic involvement. The serum CXCL13 level of pSS patients with systemic involvement was signifi-cantly higher than that of patients without systemic involvement, and the difference was statistically significant ( Z=-2.256, P=0.024), but there was no significant correlation with the number of systemic involvement ( r=0.344, P=0.062). Conclusion:The level of serum CXCL13 is a useful index in estimating disease activity and gland destruction.