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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 Cell+Mol+Immunol
2015 ; 12
(4
): 409-23
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HMGB1 contributes to allergen-induced airway remodeling in a murine model of
chronic asthma by modulating airway inflammation and activating lung fibroblasts
#MMPMID25152078
Hou C
; Kong J
; Liang Y
; Huang H
; Wen H
; Zheng X
; Wu L
; Chen Y
Cell Mol Immunol
2015[Jul]; 12
(4
): 409-23
PMID25152078
show ga
The pro-inflammation factor high-mobility group box protein 1 (HMGB1) has been
implicated in the pathogenesis of asthma. In this study, we used a murine model
of chronic asthma to evaluate the effects of HMGB1 on airway remodeling. Female
BALB/c mice were randomly divided into four groups: control, ovalbumin (OVA)
asthmatic, OVA+isotype antibody and OVA+anti-HMGB1 antibody. Anti-HMGB1 antibody
therapy was started on day 21 and was administered three times per week for 6
weeks before intranasal challenge with OVA. In this mouse model, HMGB1 expression
is significantly elevated. The anti-HMGB1 antibody group exhibited decreased
levels of immunoglobulin E (IgE) and inflammatory mediators and reduced
inflammatory cell accumulation, airway hyperresponsiveness (AHR), mucus
synthesis, smooth muscle thickness and lung collagen content compared with the
OVA groups. Treatment with HMGB1 increased proliferation, migration, collagen
secretion and ?-smooth muscle actin (SMA) expression in MRC-5 cells. Treatment
with the HMGB1/IL-1? complex significantly increased the expression and secretion
of transforming growth factor (TGF-?1), matrix metalloproteinase (MMP)-9 and
vascular endothelial growth factor (VEGF). Altogether, these results suggest that
blocking HMGB1 activity may reverse airway remodeling by suppressing airway
inflammation and modulating lung fibroblast phenotype and activation.