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Methyl salicylate 2-O-β-D-lactoside alleviates the pathological progression of pristane-induced systemic lupus erythematosus-like disease in mice via suppression of inflammatory response and signal transduction

Authors He Y, Yan Y, Zhang H, Lin Y, Chen Y, Yan Y, Wu P, Fang J, Yang S, Du G

Received 7 June 2016

Accepted for publication 22 July 2016

Published 29 September 2016 Volume 2016:10 Pages 3183—3196


Checked for plagiarism Yes

Review by Single anonymous peer review

Peer reviewer comments 2

Editor who approved publication: Prof. Dr. Wei Duan

Yang-Yang He,1,2,* Yu Yan,1,3,* Hui-Fang Zhang,1,3 Yi-Huang Lin,3 Yu-Cai Chen,1,3 Yi Yan,4 Ping Wu,1,3 Jian-Song Fang,5 Shu-Hui Yang,2 Guan-Hua Du1,3

1Beijing Key Laboratory of Drug Target Identification and Drug Screening, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 2State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 3State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 4Shanghai Pulmonary Hospital, Tongji University School of Medicine, Shanghai, 5Institute of Clinical Pharmacology, Guangzhou University of Traditional Chinese Medicine, Guangzhou, People’s Republic of China

*These authors contributed equally to this work

Abstract: Systemic lupus erythematosus (SLE), with a high incidence rate and insufficient therapy worldwide, is a complex disease involving multiple organs characterized primarily by inflammation due to deposition of immunocomplexes formed by production of autoantibodies. The mechanism of SLE remains unclear, and the disease still cannot be cured. We used pristane to induce SLE in female BALB/c mice. Methyl salicylate 2-O-β-D-lactoside (MSL; 200, 400, and 800 mg/kg) was orally administered 45 days after pristane injection for 4.5 months. The results showed that MSL antagonized the increasing levels of multiple types of antibodies and cytokines in lupus mice. MSL was found to suppress joint swelling and have potent inhibitory effect on arthritis-like symptoms. MSL also significantly decreased the spleen index and expression of inflammatory markers in the lupus mice. MSL protected the kidneys of lupus mice from injury through inhibiting the expression of inflammatory cytokines and reducing the IgG and C3 immunocomplex deposits. Further Western blot assays revealed that the downregulation of the intracellular inflammatory signals of NFκB and JAK/STAT3 might be the potential molecular mechanisms of the pharmacological activity of MSL against SLE in vivo. These findings may demonstrate that MSL has the potential to be a useful and highly effective treatment for SLE.

Keywords: methyl salicylate 2-O-β-D-lactoside, systemic lupus erythematosus, inflammatory response, lupus nephritis, signal transduction

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