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Open Access Research article

Anti-invasive effects of Celastrus Orbiculatus extract on interleukin-1 beta and tumour necrosis factor-alpha combination-stimulated fibroblast-like synoviocytes

Guoqing Li1*, Dan Liu2, Shiyu Guo3, Masataka Sunagawa3, Tadashi Hisamitsu3 and Yanqing Liu4*

Author Affiliations

1 Department of Rheumatology, Clinical Medical College, Yangzhou University, Yangzhou 225000, China

2 Department of Pathology, Clinical Medical College, Yangzhou University, Yangzhou 225000, China

3 Department of Physiology, School of Medicine, Showa University, Tokyo 142-8555, Japan

4 Institution of Traditional Chinese Medicine and Western Medicine, Medical College, Yangzhou University, Yangzhou 225000, China

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BMC Complementary and Alternative Medicine 2014, 14:62  doi:10.1186/1472-6882-14-62

Published: 19 February 2014

Abstract

Background

Invasion of fibroblast-like synoviocytes (FLSs) is critical in the pathogenesis of rheumatoid arthritis (RA). The metalloproteinases (MMPs) and activator of nuclear factor-kappa B (NF-κB) pathway play a critical role in RA-FLS invasion induced by interleukin-1 beta (IL-1β) and tumour necrosis factor-alpha (TNF-α). The present study aimed to explore the anti-invasive activity and mechanism of Celastrus orbiculatus extract (COE) on IL-1β and TNF-α combination-stimulated human RA-FLSs.

Methods

We investigated the effect of COE on IL-1β and TNF-α combination-induced FLS invasion as well as MMP expression and explored upstream signal transduction.

Results

COE suppressed IL-1β and TNF-α combination-stimulated FLSs invasion by inhibiting MMP-9 expression and activity. Furthermore, our results revealed that COE inhibited the transcriptional activity of MMP-9 by suppression of the binding activity of NF-κB in the MMP-9 promoter, and inhibited IκBα phosphorylation and nuclear translocation of NF-κB.

Conclusions

COE inhibits IL-1β and TNF-α combination-induced FLSs invasion by suppressing NF-κB-mediated MMP-9 expression.

Keywords:
Celastrus orbiculatus; Invasion; Fibroblast-like synoviocyte; MMP; Rheumatoid arthritis