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2012 ; 11
(8
): 4091-101
Nephropedia Template TP
gab.com Text
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Proteome alterations in primary human alveolar macrophages in response to
influenza A virus infection
#MMPMID22709384
Liu L
; Zhou J
; Wang Y
; Mason RJ
; Funk CJ
; Du Y
J Proteome Res
2012[Aug]; 11
(8
): 4091-101
PMID22709384
show ga
To obtain a global picture of how alveolar macrophages respond to influenza A
virus (IAV) infection, we used a quantitative proteomics method to systematically
examine protein expression in the IAV-infected primary human alveolar
macrophages. Of the 1214 proteins identified, 43 were significantly up-regulated
and 63 significantly down-regulated at >95% confidence. The expression of an
array of interferon (IFN)-induced proteins was significantly increased in the
IAV-infected macrophages. The protein with the greatest expression increase was
ISG15, an IFN-induced protein that has been shown to play an important role in
antiviral defense. Concomitantly, quantitative real-time PCR analysis revealed
that the gene expression of type I IFNs increased substantially following virus
infection. Our results are consistent with the notion that type I IFNs play a
vital role in the response of human alveolar macrophages to IAV infection. In
addition to the IFN-mediated responses, inflammatory response, apoptosis, and
redox state rebalancing appeared also to be major pathways that were affected by
IAV infection. Furthermore, our data suggest that alveolar macrophages may play a
crucial role in regenerating alveolar epithelium during IAV infection.
|Cells, Cultured
[MESH]
|Gene Expression
[MESH]
|Gene Expression Regulation
[MESH]
|Host-Pathogen Interactions
[MESH]
|Humans
[MESH]
|Immunity, Innate
[MESH]
|Influenza A Virus, H1N1 Subtype/immunology/*physiology
[MESH]