Deprecated: Implicit conversion from float 235.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 235.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 235.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 235.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 235.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 235.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 235.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 269.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 269.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Warning: imagejpeg(C:\Inetpub\vhosts\kidney.de\httpdocs\phplern\25105760
.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 PLoS+One
2014 ; 9
(8
): e104506
Nephropedia Template TP
Zhao X
; Dai J
; Xiao X
; Wu L
; Zeng J
; Sheng J
; Su J
; Chen X
; Wang G
; Li K
PLoS One
2014[]; 9
(8
): e104506
PMID25105760
show ga
Macrophages polarized to M1 (pro-inflammation) or M2 (anti-inflammation)
phenotypes in response to environmental signals. In this study, we examined the
polarization of alveolar macrophage (AM), following induction by different
influenza virus strains (ST169 (H1N1), ST602 (H3N2) and HKG9 (H9N2)). Macrophages
from other tissues or cell line exert alternative responding pattern, and AM is
necessary for investigating the respiratory system. AM polarized toward the M1
phenotype after 4 hours of infection by all three virus strains, and AM to
presented M2b phenotype after 8 hours induction, and immunosuppressive phenotype
after 24 hours of induction. Protein expression assay showed similar results as
the gene expression analysis for phenotype verification. The ELISA assay showed
that TNF-? secretion was up-regulated after 4 and 8 hours of infection by
influenza viruses, and it returned to basal levels after 24 hours of infection.
IL-10 expression was elevated after 8 and 24 hours of infection.
Immunofluorescence showed that iNOS expression was up-regulated but not Arg1
expression. Influenza virus notably increased phospho-Akt but not phospho-Erk1/2
or phospho-p38, and the AM polarization pattern have been changed by LY294002
(PI3K inhibitor). In conclusion, our results demonstrate the dynamic polarization
of AM induced by influenza viruses, and suggested that PI3K/Akt signaling pathway
modulates AM polarization to M1/M2b.
|Animals
[MESH]
|Female
[MESH]
|Humans
[MESH]
|Influenza A Virus, H1N1 Subtype/immunology
[MESH]
|Influenza A Virus, H3N2 Subtype/immunology
[MESH]
|Influenza A Virus, H9N2 Subtype/immunology
[MESH]