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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 Br+J+Pharmacol
2014 ; 171
(14
): 3526-38
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Methyl salicylate lactoside inhibits inflammatory response of fibroblast-like
synoviocytes and joint destruction in collagen-induced arthritis in mice
#MMPMID24712652
Xin W
; Huang C
; Zhang X
; Xin S
; Zhou Y
; Ma X
; Zhang D
; Li Y
; Zhou S
; Zhang D
; Zhang T
; Du G
Br J Pharmacol
2014[Jul]; 171
(14
): 3526-38
PMID24712652
show ga
BACKGROUND AND PURPOSE: Methyl salicylate 2-O-?-d-lactoside (MSL), whose chemical
structure is similar to that of salicylic acid, is a natural product derivative
isolated from a traditional Chinese herb. The aim of this study was to
investigate the therapeutic effect of MSL in mice with collagen-induced arthritis
(CIA) and explore its underlying mechanism. EXPERIMENTAL APPROACH: The
anti-arthritic effects of MSL were evaluated on human rheumatoid fibroblast-like
synoviocytes (FLS) in vitro and CIA in mice in vivo by obtaining clinical scores,
measuring hind paw thickness and inflammatory cytokine levels, radiographic
evaluations and histopathological assessments. KEY RESULTS: Treatment with MSL
after the onset of arthritis significantly prevented the progression and
development of rheumatoid arthritis (RA) in CIA mice without megascopic gastric
mucosa damage. In addition, MSL inhibited the production of pro-inflammatory
mediators, the phosphorylation and translocation of NF-?B, and cell proliferation
induced by TNF-? in FLS. MSL non-selectively inhibited the activity of COX?in
vitro, but was a more potent inhibitor of COX-2 than COX-1. MSL also inhibited
the phosphorylation of inhibitor of NF-?B kinase, I?B? and p65, thus blocking the
nuclear translocation of NF-?B in TNF-?-stimulated FLS. CONCLUSION AND
IMPLICATIONS: MSL exerts therapeutic effects on CIA mice, suppressing the
inflammatory response and joint destruction by non-selectively inhibiting the
activity of COX and suppressing activation of the NF-?B signalling pathway, but
without damaging the gastric mucosa. Therefore, MSL has great potential to be
developed into a novel therapeutic agent for the treatment of RA.