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Identification of autoantibody against poly (ADP-ribose) polymerase (PARP) fragment as a serological marker in systemic lupus erythematosus.
Journal of Autoimmunity ( IF 7.9 ) Pub Date : 2004-01-08 , DOI: 10.1016/j.jaut.2003.10.009
Dooil Jeoung 1 , Yoon Lim , Eun Bong Lee , Seongeun Lee , Hae-Yeong Kim , Hansoo Lee , Yeong Wook Song
Affiliation  

OBJECTIVES By utilizing serological analysis of a recombinant cDNA expression library (SEREX), we previously found that autoantibodies to poly (ADP-ribose) polymerase (PARP) are specifically present in the sera of patients with SLE. In this study, recombinant proteins of various domains of PARP were used to determine the PARP domain that is associated with SLE. METHODS We produced four recombinant PARP proteins, which contained various PARP domains, and then carried out enzyme linked immunosorbent assay (ELISA) using these recombinant proteins to identify domains useful for SLE diagnosis. The recombinant proteins used in this analysis were; ADPNF (amino acids 1-234), ET-L2 (amino acids 339-680), ET-L3 (amino acids 681-1014), and ADPCF (amino acids 300-1014). RESULT ELISA with ADPNF or ET-L2 showed low sensitivity in the sera of patients with SLE (14.3% and 17.0% respectively), whereas ELISA with ET-L3 or ADPCF showed high sensitivity in the sera of patients with SLE (34.0% and 49.1%, respectively). Autoantibodies to ADPCF were not found in the sera of patients with rheumatoid arthritis (0/30), systemic sclerosis (0/30) or healthy donors (0/54) and were rarely found in polymyositis/dermatomyositis (1/30) and Sjogren syndrome (1/14). Autoantibodies to ADPCF were closely associated with the presence of an oral ulcer in SLE (P=0.03, by the chi-square test). CONCLUSION The high sensitivity and specificity shown by autoantibodies to ADPCF protein could be used as a valuable serologic maker for the diagnosis of SLE.

中文翻译:

鉴定抗聚(ADP-核糖)聚合酶(PARP)片段的自身抗体作为系统性红斑狼疮的血清学标志物。

目的通过对重组cDNA表达文库(SEREX)进行血清学分析,我们先前发现针对聚(ADP-核糖)聚合酶(PARP)的自身抗体特别存在于SLE患者的血清中。在这项研究中,使用了PARP各个域的重组蛋白来确定与SLE相关的PARP域。方法我们生产了四个包含不同PARP域的重组PARP蛋白,然后使用这些重组蛋白进行酶联免疫吸附测定(ELISA),以鉴定可用于SLE诊断的域。用于该分析的重组蛋白为:ADPNF(氨基酸1-234),ET-L2(氨基酸339-680),ET-L3(氨基酸681-1014)和ADPCF(氨基酸300-1014)。结果ADPNF或ET-L2 ELISA对SLE患者的血清敏感性低(分别为14.3%和17.0%),而ET-L3或ADPCF ELISA对SLE患者的血清敏感性高(34.0%和49.1) %, 分别)。在类风湿性关节炎(0/30),系统性硬化症(0/30)或健康供体(0/54)的患者血清中未发现针对ADPCF的自身抗体,在多发性肌炎/皮肌炎(1/30)和Sjogren中很少发现综合症(1/14)。ADPCF的自身抗体与SLE中口腔溃疡的存在密切相关(卡方检验,P = 0.03)。结论自身抗体对ADPCF蛋白的高敏感性和特异性可作为SLE诊断的有价值的血清学标志物。而ET-L3或ADPCF的ELISA在SLE患者的血清中显示出高敏感性(分别为34.0%和49.1%)。在类风湿性关节炎(0/30),系统性硬化症(0/30)或健康供体(0/54)的患者血清中未发现针对ADPCF的自身抗体,在多发性肌炎/皮肌炎(1/30)和Sjogren中很少发现综合症(1/14)。ADPCF的自身抗体与SLE中口腔溃疡的存在密切相关(卡方检验,P = 0.03)。结论自身抗体对ADPCF蛋白的高敏感性和特异性可作为SLE诊断的有价值的血清学标志物。而ET-L3或ADPCF的ELISA在SLE患者的血清中显示出高敏感性(分别为34.0%和49.1%)。在类风湿性关节炎(0/30),系统性硬化症(0/30)或健康供体(0/54)的患者血清中未发现针对ADPCF的自身抗体,在多发性肌炎/皮肌炎(1/30)和Sjogren中很少发现综合症(1/14)。ADPCF的自身抗体与SLE中口腔溃疡的存在密切相关(卡方检验,P = 0.03)。结论自身抗体对ADPCF蛋白的高敏感性和特异性可作为SLE诊断的有价值的血清学标志物。全身性硬化症(0/30)或健康捐献者(0/54),在多发性肌炎/皮肌炎(1/30)和干燥综合征(1/14)中很少发现。ADPCF的自身抗体与SLE中口腔溃疡的存在密切相关(按卡方检验,P = 0.03)。结论自身抗体对ADPCF蛋白的高敏感性和特异性可作为SLE诊断的有价值的血清学标志物。全身性硬化症(0/30)或健康捐献者(0/54),在多发性肌炎/皮肌炎(1/30)和干燥综合征(1/14)中很少发现。ADPCF的自身抗体与SLE中口腔溃疡的存在密切相关(按卡方检验,P = 0.03)。结论自身抗体对ADPCF蛋白的高敏感性和特异性可作为SLE诊断的有价值的血清学标志物。
更新日期:2019-11-01
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