摘要
目的研制epstein-Bar(EB)病毒诊断试剂。方法将重组痘苗病毒表达的Epstein-Bar病毒(EBV)壳抗原(VCA)主要多肽gp125纯化,作为诊断抗原建立了酶联免疫吸附试验(ELISA),检测了48份鼻咽癌(NPC)病人血清及10份正常人血清中的VCA/IgA抗体。结果该方法与免疫荧光(IF)检测结果一致,但ELISA的平均几何滴度(GMT)是IF的12倍。结论以纯化的EB病毒壳抗原主要多肽gp125作为诊断抗原建立的检测方法,更适合于EBV相关疾病的血清学诊断和血清流行病学调查。
Epstein-Barr virus (EBV)virion capsid antigen (VCA)gp125 as a diagnostic antigen was expressed in infected cells by recombinant vaccinia virus. The presence of IgA antibody to VCA of EBV was tested by ELISA in sera from nasopharyngeal carcinoma (NPC) patients and normal individuals. The ELISA consisted of three steps involving test serum,mouse monoclonal antibody to human IgA and rabbit anti-mouse IgG.The antibody titers of sera determined by this way correlated well with those by IF.The GMT by ELISA was 12 times higher than that by IF.Furthermore,efforts to develop gold-conjugated immunosorbent assay (GCISA),which is a more sensitive assay for measuring IgA antibody to VCA,has met with initial results.
出处
《中华实验和临床病毒学杂志》
CAS
CSCD
1998年第2期143-146,共4页
Chinese Journal of Experimental and Clinical Virology
关键词
病毒抗原
血清学诊断
EB病毒
ELISA
Epstein-Barr virus Antigen viral Serodiagnosis Enzyme-linked immunosorbent assay