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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 Nat+Commun
2017 ; 8
(1
): 846
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English Wikipedia
Alveolar macrophages are critical for broadly-reactive antibody-mediated
protection against influenza A virus in mice
#MMPMID29018261
He W
; Chen CJ
; Mullarkey CE
; Hamilton JR
; Wong CK
; Leon PE
; Uccellini MB
; Chromikova V
; Henry C
; Hoffman KW
; Lim JK
; Wilson PC
; Miller MS
; Krammer F
; Palese P
; Tan GS
Nat Commun
2017[Oct]; 8
(1
): 846
PMID29018261
show ga
The aim of candidate universal influenza vaccines is to provide broad protection
against influenza A and B viruses. Studies have demonstrated that broadly
reactive antibodies require Fc-Fc gamma receptor interactions for optimal
protection; however, the innate effector cells responsible for mediating this
protection remain largely unknown. Here, we examine the roles of alveolar
macrophages, natural killer cells, and neutrophils in antibody-mediated
protection. We demonstrate that alveolar macrophages play a dominant role in
conferring protection provided by both broadly neutralizing and non-neutralizing
antibodies in mice. Our data also reveal the potential mechanisms by which
alveolar macrophages mediate protection in vivo, namely antibody-induced
inflammation and antibody-dependent cellular phagocytosis. This study highlights
the importance of innate effector cells in establishing a broad-spectrum
antiviral state, as well as providing a better understanding of how multiple arms
of the immune system cooperate to achieve an optimal antiviral response following
influenza virus infection or immunization.Broadly reactive antibodies that
recognize influenza A virus HA can be protective, but the mechanism is not
completely understood. Here, He et al. show that the inflammatory response and
phagocytosis mediated by the interaction between protective antibodies and
macrophages are essential for protection.