Quantification of lymphocytic choriomeningitis virus with an immunological focus assay in 24- or 96-well plates - PubMed (original) (raw)
Comparative Study
Quantification of lymphocytic choriomeningitis virus with an immunological focus assay in 24- or 96-well plates
M Battegay et al. J Virol Methods. 1991 Jun.
Erratum in
- J Virol Methods. 1991 Nov;35(1):115
- J Virol Methods. 1992 Aug;38(2):263
Abstract
Titers of lymphocytic choriomeningitis virus (LCMV) were determined on adherent fibroblast cell lines in 24- or 96-well plates. After absorption of virus by cells and 48 h incubation under a methylcellulose overlay, cell monolayers were fixed with 4% formaldehyde in phosphate-buffered saline, permeabilized by incubation in 0.5% Triton X-100 in balanced salt solution and then stained with a monoclonal rat anti-LCMV and a peroxidase-labeled second stage antibody. The sensitivity of the assay is within a factor of 2-4 of conventional plaquing methods. The method also detects poorly or non-plaquing LCMV isolates, and therefore drastically reduces the need for titration of LCMV in mice. The method is quicker (2-3 days), as compared to conventional methods (4-6 days) and less expensive in terms of work and materials.
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