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J. Virol., Oct 1997, 7214-7219, Vol 71, No. 10
S Niewiesk, I Eisenhuth, A Fooks, JC Clegg, JJ Schnorr, S Schneider-Schaulies and V ter Meulen
Immune suppression during measles accounts for most of the morbidity and
mortality associated with the virus infection. Experimental study of this
phenomenon has been hampered by the lack of a suitable animal model. We
have used the cotton rat to demonstrate that mitogen-induced proliferation
of spleen cells from measles virus-infected animals is impaired.
Proliferation inhibition is seen in all lymphocyte subsets and is not
dependent on viral replication. Cells which express the viral glycoproteins
(hemagglutinin and fusion protein) transiently by transfection induce
proliferation inhibition after intraperitoneal inoculation, whereas
application of a recombinant measles virus in which measles virus
glycoproteins are replaced with the vesicular stomatitis virus G protein
does not have an antiproliferative effect. Therefore, in vivo expression of
measles virus glycoproteins is sufficient and necessary to induce
inhibition of lymphocyte proliferation.
Copyright © 1997, American Society for Microbiology
Measles virus-induced immune suppression in the cotton rat (Sigmodon hispidus) model depends on viral glycoproteins
Institute of Virology and Immunobiology, University of Wurzburg, Germany.
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