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Article Publish Status: FREE
Abstract Title:

Berberine Modulates LPA Function to Inhibit the Proliferation and Inflammation of FLS-RA via p38/ERK MAPK Pathway Mediated by LPA.

Abstract Source:

Evid Based Complement Alternat Med. 2019 ;2019:2580207. Epub 2019 Nov 3. PMID: 31781264

Abstract Author(s):

Hui Wang, Shenghao Tu, Sisi Yang, Pan Shen, Yao Huang, Xin Ba, Weiji Lin, Ying Huang, Yu Wang, Kai Qin, Zhe Chen

Article Affiliation:

Hui Wang

Abstract:

Objective: This study aimed to investigate whether berberine exerted anti-inflammatory and antiproliferative effects on the fibroblast-like synoviocytes of rheumatoid arthritis (FLS-RA) through regulating the lysophosphatidic acid (LPA) function.

Methods: Firstly, the expression levels of LPA and lysophosphatidic acid receptor 1 (LPA) in RA patients, osteoarthritis (OA) patients, and healthy controls were detected. Moreover, molecular docking was employed to characterize the binding sites of berberine in the predicted protein targets. Later, FLS-RA were stimulated using berberine, LPA, and the specific inhibitor (Ki16425) of LPAthereafter, the effects on the proliferation, apoptosis, the release of inflammatory mediators of FLS-RA, and the MAPK pathway were observed.

Results: Compared with healthy controls ( = 25), the plasma LPA level ( = 28) and synovial fluid ( = 10) were markedly higher in RA patients. LPAwas highly expressed in RA patients ( = 4) relative to that in OA patients ( = 4). Berberine remarkably inhibited the proliferation and the excessive production of IL-6 and TNF-in FLS-RA, whereas suppressing the expression of K-ras, c-Raf, and p-38/ERK-phosphorylation. In addition, berberine inhibited the LPA-induced p-38/ERK-phosphorylation through binding to LPA.

Conclusions: LPA plays a certain role in promoting the proliferation and inflammation of FLS-RA. Berberine potentially modulates LPA function to suppress the proliferation and inflammation of FLS-RA through blocking the p38/ERK MAPK pathway mediated by LPA. These findings suggest that, berberine possesses potential lipid-regulating, antiarthritis, and synovial hyperplasia inhibition activities against RA, which may provide a promising therapeutic target for the clinical drug development for RA patients with dyslipidemia and high CVD risk.

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