Identification of autoantibody biomarkers for primary Sjögren's syndrome using protein microarrays.

Identification of autoantibody biomarkers for primary Sjögren's syndrome using protein microarrays.
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DOI:
10.1002/pmic.201000206
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发表时间:
2011-04
期刊:
影响因子:
3.4
通讯作者:
Wong, David T.
Wong, David T.
中科院分区:
生物学3区
文献类型:
--
作者:
Hu, Shen;Vissink, Arjan;Arellano, Martha;Roozendaal, Caroline;Zhou, Hui;Kallenberg, Cees G. M.;Wong, David T.

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干燥综合征(SS)是一种慢性、进行性自身免疫性疾病,主要影响女性。SS的诊断需要侵袭性唾液腺组织活检,并且经常观察到从症状开始到最终诊断的长时间延迟。在这项研究中,我们的目的是确定唾液自身抗体的生物标志物原发性SS(pSS)使用蛋白质微阵列的方法。免疫应答原阵列用于分析pSS患者(n=14)、系统性红斑狼疮(SLE,n=13)和健康对照受试者(n=13)的唾液自身抗体。我们确定了24种潜在的自身抗体生物标志物,可以区分pSS患者与SLE患者和健康个体。在独立的pSS(n=34)、SLE(n=34)和健康对照(n = 34)受试者中进一步测试了四种唾液自身抗体生物标志物,抗转氨酶、抗组蛋白、抗SSA和抗SSB,并且全部成功地用ELISA验证。这项研究已经证明了高通量蛋白质微阵列方法用于发现自身抗体生物标志物的潜力。鉴定的唾液自身抗体生物标志物可能导致以低成本进行简单、非侵入性检测pSS的临床工具。
Sjögren's syndrome (SS) is a chronic, progressive autoimmune disease primarily affecting women. Diagnosis of SS requires an invasive salivary gland tissue biopsy and a long delay from the start of the symptoms to final diagnosis has been frequently observed. In this study, we aim to identify salivary autoantibody biomarkers for primary SS (pSS) using a protein microarray approach. Immune-response protoarrays were used to profile saliva autoantibodies from patients with pSS (n=14), patients with systemic lupus erythematosus (SLE, n=13), and healthy control subjects (n=13). We identified 24 potential autoantibody biomarkers that can discriminate patients with pSS from both patients with SLE and healthy individuals. Four saliva autoantibody biomarkers, anti-transglutaminase, anti-histone, anti-SSA, and anti-SSB, were further tested in independent pSS (n=34), SLE (n=34), and healthy control (n=34) subjects and all were successfully validated with ELISA. This study has demonstrated the potential of a high-throughput protein microarray approach for the discovery of autoantibody biomarkers. The identified saliva autoantibody biomarkers may lead to a clinical tool for simple, noninvasive detection of pSS at low cost.
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