Deprecated: Implicit conversion from float 233.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 233.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 233.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 233.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 233.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 233.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 233.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 233.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 267.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 267.2 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\27486199
.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 Mol+Cell+Proteomics
2016 ; 15
(10
): 3203-3219
Nephropedia Template TP
gab.com Text
Twit Text FOAVip
Twit Text #
English Wikipedia
Phosphoproteomics to Characterize Host Response During Influenza A Virus
Infection of Human Macrophages
#MMPMID27486199
Söderholm S
; Kainov DE
; Öhman T
; Denisova OV
; Schepens B
; Kulesskiy E
; Imanishi SY
; Corthals G
; Hintsanen P
; Aittokallio T
; Saelens X
; Matikainen S
; Nyman TA
Mol Cell Proteomics
2016[Oct]; 15
(10
): 3203-3219
PMID27486199
show ga
Influenza A viruses cause infections in the human respiratory tract and give rise
to annual seasonal outbreaks, as well as more rarely dreaded pandemics. Influenza
A viruses become quickly resistant to the virus-directed antiviral treatments,
which are the current main treatment options. A promising alternative approach is
to target host cell factors that are exploited by influenza viruses. To this end,
we characterized the phosphoproteome of influenza A virus infected primary human
macrophages to elucidate the intracellular signaling pathways and critical host
factors activated upon influenza infection. We identified 1675 phosphoproteins,
4004 phosphopeptides and 4146 nonredundant phosphosites. The phosphorylation of
1113 proteins (66%) was regulated upon infection, highlighting the importance of
such global phosphoproteomic profiling in primary cells. Notably, 285 of the
identified phosphorylation sites have not been previously described in publicly
available phosphorylation databases, despite many published large-scale
phosphoproteome studies using human and mouse cell lines. Systematic
bioinformatics analysis of the phosphoproteome data indicated that the
phosphorylation of proteins involved in the ubiquitin/proteasome pathway (such as
TRIM22 and TRIM25) and antiviral responses (such as MAVS) changed in infected
macrophages. Proteins known to play roles in small GTPase-, mitogen-activated
protein kinase-, and cyclin-dependent kinase- signaling were also regulated by
phosphorylation upon infection. In particular, the influenza infection had a
major influence on the phosphorylation profiles of a large number of
cyclin-dependent kinase substrates. Functional studies using cyclin-dependent
kinase inhibitors showed that the cyclin-dependent kinase activity is required
for efficient viral replication and for activation of the host antiviral
responses. In addition, we show that cyclin-dependent kinase inhibitors protect
IAV-infected mice from death. In conclusion, we provide the first comprehensive
phosphoproteome characterization of influenza A virus infection in primary human
macrophages, and provide evidence that cyclin-dependent kinases represent
potential therapeutic targets for more effective treatment of influenza
infections.