Deprecated: Implicit conversion from float 231.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 231.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 231.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 231.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 231.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 231.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 231.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 265.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 265.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 265.2 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\19164548
.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 Proc+Natl+Acad+Sci+U+S+A
2009 ; 106
(5
): 1560-5
Nephropedia Template TP
gab.com Text
Twit Text FOAVip
Twit Text #
English Wikipedia
A critical role for the sphingosine analog AAL-R in dampening the cytokine
response during influenza virus infection
#MMPMID19164548
Marsolais D
; Hahm B
; Walsh KB
; Edelmann KH
; McGavern D
; Hatta Y
; Kawaoka Y
; Rosen H
; Oldstone MB
Proc Natl Acad Sci U S A
2009[Feb]; 106
(5
): 1560-5
PMID19164548
show ga
Pulmonary tissue damage resulting from influenza virus infection is caused by
both the cytolytic activity of the virus and the host immune response.
Immune-mediated injury results from T cell-mediated destruction of virus-infected
cells and by release of cytokines and chemokines that attract polymorphonuclear
leukocytes (PML) and macrophages to the infected site. The cytokines/chemokines
potentiate dendritic cell (DC) activation and T cell expansion, which further
enhances local damage. Here we report that immune modulation by local
administration to the respiratory tract of sphingosine analog AAL-R significantly
dampens the release of cytokines and chemokines while maintaining protective
neutralizing antibody and cytotoxic T cell responses. As a result there was a
marked reduction of infiltrating PML and macrophages into the lung and resultant
pulmonary tissue injury. DC maturation was suppressed, which limited
proliferation of specific antiviral T cells in the lung and draining lymph nodes.
Further, AAL-R was effective in controlling CD8(+) T cell accumulation in the
lungs even when given 4 days after initiation of influenza virus infection. These
data indicate that sphingosine analogs display useful potential for controlling
the immunopathology caused by influenza virus.