Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 245.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 245.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 245.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 245.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 245.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 245.2 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\24808359
.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 J+Immunol
2014 ; 192
(12
): 5679-86
Nephropedia Template TP
gab.com Text
Twit Text FOAVip
Twit Text #
English Wikipedia
Deletion of CD24 impairs development of heat shock protein gp96-driven autoimmune
disease through expansion of myeloid-derived suppressor cells
#MMPMID24808359
Thaxton JE
; Liu B
; Zheng P
; Liu Y
; Li Z
J Immunol
2014[Jun]; 192
(12
): 5679-86
PMID24808359
show ga
CD24 binds to and suppresses inflammation triggered by danger-associated
molecular patterns such as heat shock proteins (HSPs) and high-mobility group box
1. Paradoxically, CD24 has been shown to enhance autoimmune disease. In this
study, we attempt to reconcile this paradox by deletion of CD24 (24KO) in a
lupus-like disease model driven by forced expression of HSP gp96 at the cell
surface (transgenic mice [tm]). As expected, tm24KO mice showed increased
CD11c(+) dendritic cell activation coupled to a significant increase in dendritic
cell-specific IL-12 production compared with tm mice. However, tm24KO mice showed
less CD4 T cell activation and peripheral inflammatory cytokine production in
comparison with tm mice. We characterized an enhanced immune suppressive milieu
in tm24KO mice distinguished by increased TGF-? and greater regulatory T
cell-suppressive capacity. We found greater absolute numbers of myeloid-derived
suppressor cells (MDSCs) in tm24KO mice and showed that the Ly6C(+) MDSC subset
had greater suppressive capacity from tm24KO mice. Deletion of CD24 in tm mice
led to diminished lupus-like pathology as evidenced by anti-nuclear Ab deposition
and glomerulonephritis. Finally, we show that expanded MDSC populations were
mediated by increased free high-mobility group box 1 in tm24KO mice. Thus, the
deletion of CD24 in an HSP-driven model of autoimmunity led to the unexpected
development of regulatory T cell and MDSC populations that augmented immune
tolerance. Further study of these populations as possible negative regulators of
inflammation in the context of autoimmunity is warranted.