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J Virol Meth ; 105: 181-186, 2002.
Article in Portuguese | Sec. Est. Saúde SP, SESSP-IPPROD, Sec. Est. Saúde SP | ID: biblio-1063717

ABSTRACT

Following previous studies reporting microbiological diagnosis by flow cytometry, the possibility of using this method was examined to monitor infection of susceptible cell lines by a fixed rabies virus strain (Pasteur Virus strain—PV) or a wild rabies virus strain (WRS). Suspensions of BHK-21 and C6 cells were infected with viruses and a time course of virus infection was established. Sequentially, at several time points, infected and control uninfected cells were fixed, permeabilized, and stained with a rabies virus-specific antibody conjugate. This was achieved by resuspending cells in a solution containing p-formaldehyde in FACS lysis fluid, which allowed the detection of intracellular virus with flourescein-coupled antibodies by flow cytometry. A Becton Dickinson FACSCalibur® flow cytometer was used to analyze the percentage of cells infected and the kinetics of the infection process was determined. As early as 12 h after inoculation with both rabies virus strains, significant levels (P<0.01) of infection (from 4.7 to 7.1%) were detected by flow cytometry. The maximum level of infection was obtained at 48 h in C6 cells (88%) with both viruses. The advantages of this method for examination of intracellular virus infection are discussed.


Subject(s)
Flow Cytometry , Rabies , Rabies virus
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