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.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 PLoS+Pathog
2013 ; 9
(3
): e1003207
Nephropedia Template TP
gab.com Text
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Twit Text #
English Wikipedia
Cooperativity between CD8+ T cells, non-neutralizing antibodies, and alveolar
macrophages is important for heterosubtypic influenza virus immunity
#MMPMID23516357
Laidlaw BJ
; Decman V
; Ali MA
; Abt MC
; Wolf AI
; Monticelli LA
; Mozdzanowska K
; Angelosanto JM
; Artis D
; Erikson J
; Wherry EJ
PLoS Pathog
2013[Mar]; 9
(3
): e1003207
PMID23516357
show ga
Seasonal epidemics of influenza virus result in ?36,000 deaths annually in the
United States. Current vaccines against influenza virus elicit an antibody
response specific for the envelope glycoproteins. However, high mutation rates
result in the emergence of new viral serotypes, which elude neutralization by
preexisting antibodies. T lymphocytes have been reported to be capable of
mediating heterosubtypic protection through recognition of internal, more
conserved, influenza virus proteins. Here, we demonstrate using a recombinant
influenza virus expressing the LCMV GP33-41 epitope that influenza virus-specific
CD8+ T cells and virus-specific non-neutralizing antibodies each are relatively
ineffective at conferring heterosubtypic protective immunity alone. However, when
combined virus-specific CD8 T cells and non-neutralizing antibodies cooperatively
elicit robust protective immunity. This synergistic improvement in protective
immunity is dependent, at least in part, on alveolar macrophages and/or other
lung phagocytes. Overall, our studies suggest that an influenza vaccine capable
of eliciting both CD8+ T cells and antibodies specific for highly conserved
influenza proteins may be able to provide heterosubtypic protection in humans,
and act as the basis for a potential "universal" vaccine.