Anti-rheumatic effects of Aconitum leucostomum Worosch. on human fibroblast-like synoviocyte rheumatoid arthritis cells

Yang,Junling; Zhao,Feicui; Nie,Jihong

doi:10.3892/etm.2017.4503

Anti-rheumatic effects of Aconitum leucostomum Worosch. on human fibroblast-like synoviocyte rheumatoid arthritis cells

Authors:
- Junling Yang
- Feicui Zhao
- Jihong Nie
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Affiliations: College of Traditional Chinese Medicine, Xinjiang Medical University, Urumqi, Xinjiang 830011, P.R. China, Department of Pharmacy, Chinese Medicine Hospital Affiliated to Xinjiang Medical University, Urumqi, Xinjiang 830000, P.R. China
Published online on: May 23, 2017 https://doi.org/10.3892/etm.2017.4503
Pages: 453-460

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Abstract

The aim of the present study was to investigate the effects of Aconitum leucostomum Worosch. crude drug, processed products and monomer components on human fibroblast‑like synoviocyte rheumatoid arthritis (HFLS‑RA) cells, and its associated mechanisms. Following drug treatment, cell proliferation was assessed using a Cell Counting Kit‑8 assay. Cellular apoptosis and cell cycle were evaluated using flow cytometry. Levels of hypoxia‑inducible factor 1α (HIF‑1α), vascular endothelial growth factor (VEGF) and toll‑like receptor 4 (TLR4) mRNA and protein were evaluated using reverse transcription‑quantitative polymerase chain reaction (RT‑qPCR) and western blot analysis, respectively. Levels of pro‑inflammatory cytokines were evaluated using ELISA. Analysis of cell proliferation indicated that crude drug and processed products markedly inhibited the cell proliferation. Compared with the control group, the apoptosis rates were significantly elevated in all treatment groups (all P<0.05). Furthermore, the proportion of cells in G0/G1 phase was significantly decreased in all treatment groups compared with the control group (all P<0.05). RT‑qPCR and western blotting indicated that, compared with the control group, mRNA and protein expression levels of HIF‑1α, and TLR4 were significantly downregulated in all treatment groups (P<0.05). The mRNA and protein expression levels of VEGF in all treatment groups were decreased compared with those in the control group, but the difference was not significant. Results from ELISA demonstrated that the levels of interleukin (IL)‑6, IL‑1β and tumor necrosis factor‑α in the cell culture supernatant were all significantly decreased following drug treatment in HFLS‑RA cells (all P<0.05). Therefore, A. leucostomum Worosch. crude drug, processed products and monomer components may exert anti‑rheumatic effects on HFLS-RA cells, inhibiting cell proliferation and enhancing cellular apoptosis. These effects may be attributable to the downregulated expression of HIF‑1α and TLR4, as well as decreased levels of pro‑inflammatory cytokines.

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