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Synchronized infection of cell cultures by magnetically controlled virus
Journal article   Open access   Peer reviewed

Synchronized infection of cell cultures by magnetically controlled virus

Hillel Haim, Israel Steiner and Amos Panet
Journal of virology, Vol.79(1), pp.622-625
01/2005
DOI: 10.1128/JVI.79.1.622-625.2005
PMCID: PMC538731
PMID: 15596857
url
https://doi.org/10.1128/JVI.79.1.622-625.2005View
Published (Version of record) Open Access

Abstract

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.
Endothelium, Vascular - cytology Receptors, Virus - metabolism Cells, Cultured Viral Envelope Proteins Rats Magnetics Virology - methods Lentivirus - chemistry Lentivirus - metabolism Animals Adsorption Endothelium, Vascular - virology Lentivirus - genetics Lentivirus - pathogenicity Aorta - cytology Membrane Glycoproteins Endothelial Cells - virology

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