alexa Rabies lyssavirus Isolates from Brazilian Different Reservoirs Species Present Distinct Pattern of Propagation in N2a Cell | OMICS International | Abstract
ISSN: 2161-0517

Virology & Mycology
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Research Article

Rabies lyssavirus Isolates from Brazilian Different Reservoirs Species Present Distinct Pattern of Propagation in N2a Cell

Bruno Amorim Costa1, Natalia Langenfeld Fuoco1, Luciana Botelho Chaves1, Adriana Candido Rodrigues1, Orlando Garcia Ribeiro2, Keila Iamamoto Nogi1,Karin Corrêa Scheffer1 and Iana Suly Santos Katz1*

1Rabies Diagnostic Laboratory, Pasteur Institute, São Paulo, SP, Brazil

2Immunogenetics Laboratory, Instituto Butantan, São Paulo, SP, Brazil

*Corresponding Author:
Katz ISS
Rabies Diagnostic Laboratory
Pasteur Institute, São Paulo
SP, Brazil
Tel: +551131453183
E-mail: [email protected]

Received date: August 01, 2016; Accepted date: November 01, 2016; Published date: November 03, 2016

Citation: Costa BA, Fuoco NL, Chaves LB, Rodrigues AC,Ribeiro OG,Nogi KI, Scheffer KC and Katz ISS (2016) Rabies lyssavirus Isolates from Brazilian Different Reservoirs Species Present Distinct Pattern of Propagation in N2a Cell . Virol-mycol 5:159. doi: 10.4172/2161-0517.1000159

Copyright: © 2016 Costa BA, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

Abstract

Background: Rabies cell culture infection test was developed for the isolation of Rabies lyssavirus and as an alternative for the mouse inoculation test. However, tissue culture for street rabies strains produces low viral titer. Here, we assessed the quantity of brain tissue for successful viral isolation toward increased virus titer in effective way.

Methods: Brain tissue isolates from different reservoirs species of Brazil were harvested in different concentration and inoculated in mouse neuroblastoma cells (N2a). These isolates were measured infectious viral titer and cell viability followed by consecutive passages in N2a cells.

Results: Inoculum containing were prominent Rabies lyssavirus due to higher viral titer and not significantly dead cell. After consecutive passages in N2a cells Rabies lyssavirus variant maintained by vampire bat had remarkable adaptation to the culture system, while isolates from marmoset presents distinct pattern of propagation in N2a cell when compared with other groups.

Conclusion: Based on these results, the isolation followed by viral replication assay may be used in isolates from different reservoirs which enable an effective amplification of the wild type virus strains.

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