Aims: This paper investigates the presence of M3 muscarinic acetylcholine receptor autoantibody present in the serum of patients with primary Sj?gren syndrome (pSS). Main methods: We detected the levels of M3mAChR pep...Aims: This paper investigates the presence of M3 muscarinic acetylcholine receptor autoantibody present in the serum of patients with primary Sj?gren syndrome (pSS). Main methods: We detected the levels of M3mAChR peptide IgG, PGE2, IL-1β in serum of SS patients using the enzyme-linked immune sorbent assay (ELISA). To measure the quantity of nitrite/nitrate, we used Griess reagent system. Key findings: Titres of M3mAChR antibody in sera from SS patients are significantly enhanced compared to healthy subjects (control). The enhancement of these autoantibodies is accompanied by the increase of the levels of PGE2, IL-1β and nitrite/nitrate in serum. Under in vitro conditions, the synthetic human M3 peptide impaires the increment of M3mAChR antibody but not that of nati-Ro/SSA antibody. In positive anti-Ro/SSA antibody patients, the increment of M3mAChR peptide IgG and the measured pro-inflammatory substances is related. Significance: On this basis, anti M3mAChR peptide IgG can be said to act as a modulator of the immune system and to play a role in the host-chronic increment of proinflammatory substances in SS patients with positive Ro/SSA antibody. This association between the antibody and the pathogenesis of SS disease may result in useful predicting SS.展开更多
目的评价5个不同厂家自身抗体谱线性免疫印迹法(LIA)试剂中的抗60 k D Ro/SSA Ig G抗体项目的一致性及符合率。方法收集本院54例自身免疫性疾病病人和10份2013年卫生部临检中心室间质评血清及30例健康人血清,同时使用酶联免疫吸附(ELISA...目的评价5个不同厂家自身抗体谱线性免疫印迹法(LIA)试剂中的抗60 k D Ro/SSA Ig G抗体项目的一致性及符合率。方法收集本院54例自身免疫性疾病病人和10份2013年卫生部临检中心室间质评血清及30例健康人血清,同时使用酶联免疫吸附(ELISA)法和5个不同品牌LIA法试剂对血清中的抗60 k D Ro/SSA Ig G抗体进行检测,比较5个不同品牌LIA法试剂检测60 k D Ro/SSA Ig G抗体的一致性及总体符合率。结果 ELISA法试剂盒检测94例血清中阳性标本37例,阴性标本57例,同时进行的5种不同品牌LIA法抗核抗体谱试剂检测抗60 k D Ro/SSA Ig G抗体结果的总体符合率均超过90%,吻合系数均>0.8,说明一致性很好,但5种品牌均出现不相一致的阳性和阴性。结论 LIA法的抗核抗体谱检测试剂盒在检测抗60 k D Ro/SSA Ig G抗体项目中一致性很好,但检测结果可疑时应使用天然抗原包被的ELISA法试剂或双向扩散法进行复测。展开更多
文摘Aims: This paper investigates the presence of M3 muscarinic acetylcholine receptor autoantibody present in the serum of patients with primary Sj?gren syndrome (pSS). Main methods: We detected the levels of M3mAChR peptide IgG, PGE2, IL-1β in serum of SS patients using the enzyme-linked immune sorbent assay (ELISA). To measure the quantity of nitrite/nitrate, we used Griess reagent system. Key findings: Titres of M3mAChR antibody in sera from SS patients are significantly enhanced compared to healthy subjects (control). The enhancement of these autoantibodies is accompanied by the increase of the levels of PGE2, IL-1β and nitrite/nitrate in serum. Under in vitro conditions, the synthetic human M3 peptide impaires the increment of M3mAChR antibody but not that of nati-Ro/SSA antibody. In positive anti-Ro/SSA antibody patients, the increment of M3mAChR peptide IgG and the measured pro-inflammatory substances is related. Significance: On this basis, anti M3mAChR peptide IgG can be said to act as a modulator of the immune system and to play a role in the host-chronic increment of proinflammatory substances in SS patients with positive Ro/SSA antibody. This association between the antibody and the pathogenesis of SS disease may result in useful predicting SS.
文摘目的评价5个不同厂家自身抗体谱线性免疫印迹法(LIA)试剂中的抗60 k D Ro/SSA Ig G抗体项目的一致性及符合率。方法收集本院54例自身免疫性疾病病人和10份2013年卫生部临检中心室间质评血清及30例健康人血清,同时使用酶联免疫吸附(ELISA)法和5个不同品牌LIA法试剂对血清中的抗60 k D Ro/SSA Ig G抗体进行检测,比较5个不同品牌LIA法试剂检测60 k D Ro/SSA Ig G抗体的一致性及总体符合率。结果 ELISA法试剂盒检测94例血清中阳性标本37例,阴性标本57例,同时进行的5种不同品牌LIA法抗核抗体谱试剂检测抗60 k D Ro/SSA Ig G抗体结果的总体符合率均超过90%,吻合系数均>0.8,说明一致性很好,但5种品牌均出现不相一致的阳性和阴性。结论 LIA法的抗核抗体谱检测试剂盒在检测抗60 k D Ro/SSA Ig G抗体项目中一致性很好,但检测结果可疑时应使用天然抗原包被的ELISA法试剂或双向扩散法进行复测。
