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Title: Tick-borne encephalitis virus infection of cultured mouse macrophages
Authors: Arunee Ahantarig
Daniel Rüžek
Marie Vancová
Anna Janowitz
Hana Št'Astná
Martina Tesařová
Libor Grubhoffer
Mahidol University
Jihoceska Univerzita v Ceskuch Budejovicich
University of Glasgow
Keywords: Immunology and Microbiology;Medicine
Issue Date: 1-Sep-2009
Citation: Intervirology. Vol.52, No.5 (2009), 283-290
Abstract: The interactions of tick-borne encephalitis virus (TBEV) with mouse macrophages were studied at the electron microscopic level. The cultured mouse macrophages were sensitive to infection with TBEV strain Hypr (a highly neuroinvasive and neurovirulent strain for laboratory mice) and produced relatively high virus titers. However, these macrophage cells remained morphologically inactivated. Viral particles were located mainly in the ER but were also present in other exocytic compartments. No virus production was observed in cells infected with the attenuated, non-neuroinvasive TBEV strain 263. In this case, the infection led to a clear morphological activation of the macrophages. In conclusion, the virus replication process in mouse macrophage cells might be different from that in other mammalian cell lines since the smooth membrane structures, which are thought to be the sites for flavivirus replication, were not observed. Moreover, different TBEV strains exhibited a different interaction with the host macrophages. The inability of strain 263 to replicate in mouse macrophages as the first site of significant viral replication in vivo could be associated with the inability of this strain to establish a serious infection in mice. © 2009 S. Karger AG, Basel.
ISSN: 03005526
Appears in Collections:Scopus 2006-2010

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