Pasquali J L, Urlacher A, Storck D
Clin Exp Immunol. 1984 Feb;55(2):281-6.
In order to explain long term seronegativity in certain patients with rheumatoid arthritis (RA), we looked for the presence of anti-idiotypic antibodies against rheumatoid factors (RFs). From a patient's serum with classical but seronegative RA, we isolated a low quantity of the IgG fraction which partially recognized polyclonal RF idiotypes. The purified Fab'2 anti-idiotypic antibodies were able to inhibit up to 48% of in vitro RF production by pokeweed mitogen stimulated lymphocytes from a patient's peripheral blood with seropositive RA. The two main conclusions of this study are: (1) this single patient with seronegative RA has serum antibodies directed against RF idiotypes and (2) these anti-idiotypic antibodies could be implicated in the generation of seronegativity.
为了解释某些类风湿关节炎(RA)患者的长期血清学阴性情况,我们探寻了抗类风湿因子(RF)独特型抗体的存在。从一名患有典型血清学阴性RA的患者血清中,我们分离出少量IgG组分,其能部分识别多克隆RF独特型。纯化的Fab'2抗独特型抗体能够抑制来自一名血清学阳性RA患者外周血的商陆有丝分裂原刺激淋巴细胞体外产生RF的能力,抑制率高达48%。本研究的两个主要结论是:(1)这名血清学阴性RA患者的血清中有针对RF独特型的抗体;(2)这些抗独特型抗体可能与血清学阴性的产生有关。