Astragaloside IV suppresses inflammatory mediator production in synoviocytes and collagen‑induced arthritic rats

  • Authors:
    • Hao Xu
    • Chang‑Yao Wang
    • Hai‑Ning Zhang
    • Cheng‑Yu Lv
    • Ying‑Zhen Wang
  • View Affiliations

  • Published online on: February 22, 2016     https://doi.org/10.3892/mmr.2016.4923
  • Pages: 3289-3296
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Abstract

The aim of the current study was to investigate the effects of Astragaloside‑IV (AS‑IV) on inflammatory mediators in synoviocytes and collagen‑induced arthritic rats. Synoviocytes were stimulated with lipopolysaccharides (LPS) and Sprague‑Dawley rats were injected with type II collagen. AS‑IV was administered to the LPS‑stimulated synoviocytes and collagen‑induced arthritis (CIA) rats. The inflammation of LPS‑stimulated synoviocytes and CIA rats was assessed using enzyme‑linked immunosorbent assays and western blotting. Using Cell Counting Kit‑8 analysis, it was demonstrated that AS‑IV (5, 20 and 50 mg/ml) inhibited the LPS‑stimulated synoviocytes proliferation in a dose‑dependent manner. AS‑IV significantly inhibited the LPS‑stimulated inflammatory response, as indicated by the expression levels of TNF‑α, IL‑1β, IL‑6 and IL‑8. In addition, treatment with AS‑IV significantly reduced the LPS‑stimulated cyclooxygenase (COX)‑1, COX‑2, high mobility group box 1 protein (HMGB1) and intercellular adhesion molecule 1 overexpression, and intranuclear nuclear factor (NF)‑κBp65 subunit accumulation and activation of c‑Jun N‑terminal kinase (JNK)1/2 and p38. Similar to the protective effects of AS‑IV on LPS‑stimulated synoviocytes, AS‑IV treatment significantly reduced the expression levels of tumor necrosis factor α, interleukin (IL)‑1β, IL‑6 and IL‑8 expression levels, and attenuated intranuclear NF‑κBp65 subunit accumulation and overexpression of COX‑2 and inducible nitric oxide synthase in CIA rats. In conclusion, the results of the present study demonstrated for the first time, to the best of our knowledge, that AS‑IV protects synoviocytes against LPS‑ and collagen‑induced inflammatory responses through inhibition of the HMGB1‑dependent JNK1/2‑ and p38‑activated NF‑κB/COX‑2 pathway.
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April-2016
Volume 13 Issue 4

Print ISSN: 1791-2997
Online ISSN:1791-3004

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Spandidos Publications style
Xu H, Wang CY, Zhang HN, Lv CY and Wang YZ: Astragaloside IV suppresses inflammatory mediator production in synoviocytes and collagen‑induced arthritic rats. Mol Med Rep 13: 3289-3296, 2016.
APA
Xu, H., Wang, C., Zhang, H., Lv, C., & Wang, Y. (2016). Astragaloside IV suppresses inflammatory mediator production in synoviocytes and collagen‑induced arthritic rats. Molecular Medicine Reports, 13, 3289-3296. https://doi.org/10.3892/mmr.2016.4923
MLA
Xu, H., Wang, C., Zhang, H., Lv, C., Wang, Y."Astragaloside IV suppresses inflammatory mediator production in synoviocytes and collagen‑induced arthritic rats". Molecular Medicine Reports 13.4 (2016): 3289-3296.
Chicago
Xu, H., Wang, C., Zhang, H., Lv, C., Wang, Y."Astragaloside IV suppresses inflammatory mediator production in synoviocytes and collagen‑induced arthritic rats". Molecular Medicine Reports 13, no. 4 (2016): 3289-3296. https://doi.org/10.3892/mmr.2016.4923