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J. Virol., Oct 1996, 7327-7330, Vol 70, No. 10
A von Poblotzki, C Gerdes, U Reischl, H Wolf and S Modrow
Immunity after infection with the parvovirus B19 is assumed to be conferred
by a humoral immune response with development of neutralizing antibody. In
contrast, little is known about the nature of T-cell- mediated responses to
parvovirus B19 infection in humans. We used recombinant proteins VP1, VP2,
and NS1, as well as a recombinant VP1- specific amino-terminal sequence, to
test the proliferative responses of peripheral blood mononuclear cells
after infection of otherwise healthy individuals with parvovirus B19. These
proteins were used as antigens for the stimulation of freshly isolated
cells. The results show that a B19 virus-specific cellular immunity
develops that is directed against the capsid proteins VP1 and VP2. We also
demonstrate that viral determinants are presented to CD4+ T cells by HLA
class II molecules.
Copyright © 1996, American Society for Microbiology
Lymphoproliferative responses after infection with human parvovirus B19
Institut fur Medizinische Mikrobiologie und Hygiene der Universitat Regensburg, Germany.
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