检验医学 ›› 2019, Vol. 34 ›› Issue (8): 696-700.DOI: 10.3969/j.issn.1673-8640.2019.08.005

• 临床应用研究·论著 • 上一篇    下一篇

血浆GAS5在系统性红斑狼疮患者诊断及治疗中的临床应用

陈艳红, 孙丽, 付昱, 刘艳, 牛国平   

  1. 徐州市中心医院检验科,江苏 徐州 221009
  • 收稿日期:2019-01-18 出版日期:2019-08-30 发布日期:2019-08-27
  • 作者简介:null

    作者简介:陈艳红,女,1981年生,硕士,主管技师,主要从事自身免疫性疾病的病理、生理、发病机制及临床治疗的相关研究。

  • 基金资助:
    徐州市科技局资助项目(KC18033)

Clinical application of plasma GAS5 in the diagnosis and treatment of systemic lupus erythematosus

CHEN Yanhong, SUN Li, FU Yu, LIU Yan, NIU Guoping   

  1. Department of Clinical Laboratory,Xuzhou Central Hospital,Xuzhou 221009,Jiangsu,China
  • Received:2019-01-18 Online:2019-08-30 Published:2019-08-27

摘要:

目的 评价血浆生长特异性阻滞因子(GAS5)对系统性红斑狼疮(SLE)的临床诊疗价值。方法 选取SLE患者169例、类风湿性关节炎(RA)患者50例、原发性干燥综合征(pSS)患者50例,以体检健康者102名作为健康对照组,采用实时定量逆转录聚合酶链反应(qRT-PCR)检测血浆GAS5的相对表达量。采用Spearman秩相关分析评估GAS5与抗双链DNA(dsDNA)抗体及抗Sm抗体的相关性。采用受试者工作特征(ROC)曲线分析GAS5诊断SLE的效能。在169例SLE患者中选取39例进行治疗前后血浆GAS5相对表达量的比较。结果 SLE组血浆GAS5相对表达量明显高于RA组、pSS组及健康对照组(P<0.001)。SLE患者GAS5与抗ds-DNA抗体、抗Sm抗体均呈正相关(r值分别为0.53、0.45,P<0.001)。血浆GAS5诊断SLE的曲线下面积(AUC)为0.84,最佳临界值为0.56,敏感度为81%,特异性为78%。GAS5与抗dsDNA抗体、抗Sm抗体联合检测诊断SLE的AUC为0.86,敏感性89%,特异性为75%。GAS5诊断RA及pSS的AUC分别为0.61和0.53。SLE患者治疗后血浆GAS5相对表达量较治疗前明显下降。结论 GAS5可作为诊断SLE新的标志物,给SLE的诊断及临床治疗提供新的依据。

关键词: 生长特异性阻滞因子, 抗双链DNA抗体, 抗Sm抗体, 系统性红斑狼疮

Abstract:

Objective To investigate the role of plasma growth arrest-specific 5(GAS5) in the diagnosis and treatment of systemic lupus erythematosus(SLE). Methods A total of 169 patients with SLE,50 patients with rheumatoid arthritis(RA) and 50 patients with primary Sjögren's syndrome(pSS) were enrolled,and 102 healthy subjects were enrolled as healthy control group. Plasma GAS5 level was determined by real-time quantitation reverse transcription polymerase chain reaction(qRT-PCR). The correlations between GAS5 and anti-double-stranded DNA(dsDNA) and anti-Smith(Sm) antibodies were analyzed. Receiver operating characteristic(ROC) curves were used to identify the diagnostic efficiency of plasma GAS5 for SLE. In the 169 patients with SLE,39 cases were selected,and their plasma GAS5 levels were compared before and after treatment. Results Compared to RA,pSS and healthy control groups,the GAS5 level was higher in SLE group(P<0.001). GAS5 had positive correlations with anti-dsDNA antibody(r=0.53,P<0.001) and anti-Sm antibody(r=0.45,P<0.001). The area under curve(AUC) of plasma GAS5 was 0.84. At the optimal cut-off value of 0.56,the diagnostic sensitivity and specificity were 89% and 75%. The AUC of GAS5 for the diagnosis of RA and pSS were 0.61 and 0.53,respectively. The GAS5 level after treatment was decreased compared with that before treatment. Conclusions Plasma GAS5 can provide a reference for the diagnosis and treatment of SLE. It can be used as a new biomarker for the diagnosis of SLE.

Key words: Growth arrest-specific 5, Anti-double-stranded-DNA antibody, Anti-Smith antibody, Systemic lupus erythematosus

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