摘要
目的 :检验EB病毒 (Epstein BarrVirus,EBV)蛋白对培养的人B细胞产生免疫球蛋白 (Immunoglobulin ,Ig)的影响。方法 :用UV灭活和热处理的EBV刺激培养的人脐带血B细胞 ,流式细胞仪检测UV灭活EBV组细胞CD5、CD3、CD4和CD8的表达 ,ELISA法检测培养上清中IgG和IgM ,同时与EBV转化B细胞产生的IgG和IgM作对比。结果 :第 14天未检测到T细胞 ,CD5 + B细胞占 4 3% ;2 8天时CD5 + B细胞占 4 7%。UV灭活EBV组 :第 10、18、2 2和 2 6天IgGA值与对照组相比有显著差异 (P <0 0 5 ) ,第 10天以后各时间点IgMA值与对照组相比有显著差异 (P <0 0 5 )。EBV转化培养B细胞 4 0天 ,IgG和IgMA值与同期其它各组有显著差异 (P <0 0 5 )。结论 :EBV蛋白有诱导Ig产生的作用。
Objective:To investigate the effect of EBV protein on the production of Immunoglobulin(Ig)by cultured B cells.Methods:The purified human umbilical blood B cells were treated respectively with UV and Heat-inactivated EBV and cultured in complete IMDM. CD5, CD3, CD4 and CD8 cells were measured by flow cytometric analysis. IgG and IgM in the supernatant were detected by ELISA. At the mean time, IgG and IgM in the supernatant of cultured EBV-transformed B lymphocytes were detected by ELISA,and compared with that of UV-inactivated EBV group at the same period.Results:In UV-inactivated EBV group,CD3, CD4 and CD8 T cells couldn’t be detected,CD5 + cells occupied about 42% of all detected cells at the 14th day; and at the 28th day, 47%.The IgG A value of the 10th、18th、22th and 26th day in UV-inactivated EBV group have a significant difference compared with that in the control group ( P <0.05);The IgM A value of various time points after the 10th day in UV-inactivated EBV group have a significant difference( P <0.05). At the 40th day, IgG and IgM A value in EBV-transformed B cell group had significant difference compared with that in UV-inactivated EBV group( P <0.05).Conclusion:It is suggested that EBV protein is a key component to stimulate Ig production. These results make the base for further researching the effect of EBV gp350 on the production of natural autoantibodies.
出处
《中国免疫学杂志》
CAS
CSCD
北大核心
2003年第8期524-526,529,共4页
Chinese Journal of Immunology
基金
国家自然科学基金资助项目 (3 0 170 862 )