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.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 PLoS+One
2016 ; 11
(5
): e0156583
Nephropedia Template TP
gab.com Text
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English Wikipedia
Alpha 1 Antitrypsin Inhibits Dendritic Cell Activation and Attenuates Nephritis
in a Mouse Model of Lupus
#MMPMID27232337
Elshikha AS
; Lu Y
; Chen MJ
; Akbar M
; Zeumer L
; Ritter A
; Elghamry H
; Mahdi MA
; Morel L
; Song S
PLoS One
2016[]; 11
(5
): e0156583
PMID27232337
show ga
Systemic lupus erythematosus (SLE) is an autoimmune disorder with a worldwide
distribution and considerable mortality and morbidity. Although the pathogenesis
of this disease remains elusive, over-reactive dendritic cells (DCs) play a
critical role in the disease development. It has been shown that human alpha-1
antitrypsin (hAAT) has protective effects in type 1 diabetes and rheumatoid
arthritis mouse models. In the present study, we tested the effect of AAT on DC
differentiation and functions, as well as its protective effect in a lupus-prone
mouse model. We showed that hAAT treatment significantly inhibited LPS (TLR4
agonist) and CpG (TLR9 agonist) -induced bone-marrow (BM)-derived conventional
and plasmacytoid DC (cDC and pDC) activation and reduced the production of
inflammatory cytokines including IFN-I, TNF-? and IL-1?. In MRL/lpr mice, hAAT
treatment significantly reduced BM-derived DC differentiation, serum autoantibody
levels, and importantly attenuated renal pathology. Our results for the first
time demonstrate that hAAT inhibits DC activation and function, and it also
attenuates autoimmunity and renal damage in the MRL/lpr lupus model. These
results imply that hAAT has a therapeutic potential for the treatment of SLE in
humans.