Synchronized infection of cell cultures by magnetically controlled virus

被引:38
作者
Haim, H [1 ]
Steiner, I
Panet, A
机构
[1] Hebrew Univ Jerusalem, Fac Med, Dept Virol, Hadassah Med Sch, IL-91120 Jerusalem, Israel
[2] Hebrew Univ Jerusalem, Hadassah Med Sch, Lab Neurovirol, Dept Neurol, Jerusalem, Israel
关键词
D O I
10.1128/JVI.79.1.622-625.2005
中图分类号
Q93 [微生物学];
学科分类号
071005 ; 100705 ;
摘要
To override the diffusion-limited adsorption step of viral infection, we magnetically synchronized cell attachment. Human immunodeficiency virus type 1-based lentivirus preparations were rendered magnetically reactive by association with magnetite nanoparticles, 50 nm in diameter. Application of a magnetic field resulted in immediate redistribution of the viral inoculum to the cell-associated state and completion of the productive adsorption process within 1 min. Independent of adsorption time, viral concentration, and diffusion rate, infection subsequently progressed by the receptor-mediated entry mechanism. Synchronization of this rate-limiting step of infection may now be applied to analyze isolated events in the viral replication sequence.
引用
收藏
页码:622 / 625
页数:4
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