Ecker J R, Hyman R W
J Virol. 1981 Oct;40(1):314-8. doi: 10.1128/JVI.40.1.314-318.1981.
The DNAs of a varicella-zoster virus vaccine and its parental virus were compared by CsCl buoyant density centrifugation and restriction enzyme cleavage analysis. The varicella-zoster virus vaccine DNA showed a heterogeneous buoyant profile and altered restriction enzyme cleavage patterns. These changed properties are probably the result of the accumulation of virus containing defective varicella-zoster virus DNA during extensive cell culture passage of the vaccine virus.
通过氯化铯浮力密度离心和限制性内切酶切割分析,对水痘-带状疱疹病毒疫苗及其亲本病毒的DNA进行了比较。水痘-带状疱疹病毒疫苗DNA呈现出异质的浮力图谱,并改变了限制性内切酶切割模式。这些变化的特性可能是疫苗病毒在广泛的细胞培养传代过程中,含有缺陷水痘-带状疱疹病毒DNA的病毒积累的结果。