摘要
用CJ-S131菌苗经口免疫小鼠16周,观察免疫小鼠体内的自身抗体(抗ds-DNA,ss-DNA,组蛋白和ENA抗体)产生动力学。在CJ-S131菌苗连续免疫的16周内,免疫小鼠有两个自身抗体产生峰。免疫后第6周,出现第一峰,抗组蛋白和ENA抗体的阳性率高于抗ds-DNA和ss-DNA抗体;在第16周,抗ds-DNA和ss-DNA抗体的阳性率高于抗组蛋白和ENA抗体。在正常小鼠体内,存在“自然”抗核酸抗体(抗ds-DNA和ss-DNA抗体),随年龄而增长,但个体差异较大;而抗核蛋白抗体(抗组蛋白和ENA抗体)始终测不出。上述结果提示,抗组蛋白抗体和抗ENA抗体在自身免疫病的发病机理和早期诊断中,具有潜在意义,值得进一步研究。
KM mice were orally immunized with formalized C. jejuni (CJ-S131 vaccine) for 16 weeks. The production kinetics of autoanti bodies against ss-DNA, ds-DNA, histories and extractable nuclear antigens (ENA) was investigated and two peaks of autoantibody production were observed within 16 weeks after immunizalion. The first peak appeared at 6th week after immunization when the positive percentage of autoantibody against histones (83%) and ENA (67%) was higher than that against ds-DNA (33%) and ss-DNA ( 0 %), and the second peak at 16th week when the positive percentage of anti-ds-DNA (50%) and anti-ss-DNA (83%) antibody higher than that of anti-histones (33%) and anti-ENA (33%) anti body. Natural autoanti bodies against nuclear acid (ds-DNA and ss-DNA) in the controlled mice could be detected, too, by ELISA, which raised with aging but obviously demonstrating individual difference; however, autoanti bodies to nucleoproteins (histones and ENA) could not be detected at the matched times. The results suggested that autoantibody against histones or ENA was more specific for autoimmune diseases than that against DNA, and might be of significance for earlier diagnosis of the systemic autoimmune diseases, e. g. SLE, in clinic.
出处
《中国免疫学杂志》
CAS
CSCD
北大核心
1991年第1期7-10,共4页
Chinese Journal of Immunology
基金
国家自然科学基金会
卫生部和上海市高教局资助
关键词
自身抗体
空弯菌抗原
动力学
autoantibody
vaccine of C. jejuni
kinetics of antibody production
oralimmunization
