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Abstract Title:

Paeoniflorin ameliorates collagen-induced arthritis via suppressing nuclear factor-κB signalling pathway in osteoclast differentiation.

Abstract Source:

Immunology. 2018 Feb 17. Epub 2018 Feb 17. PMID: 29453823

Abstract Author(s):

Haiyan Xu, Li Cai, Lili Zhang, Guojue Wang, Rongli Xie, Yongshuai Jiang, Yuanyang Yuan, Hong Nie

Article Affiliation:

Haiyan Xu

Abstract:

Paeoniflorin (PF), extracted from the root of Paeonia lactiflora Pall, exhibits anti-inflammatory properties in several autoimmune diseases. Osteoclast, the only somatic cell with bone resorbing capacity, was the direct cause of bone destruction in rheumatoid arthritis (RA) and its mouse model, collagen-induced arthritis (CIA). The objective of this study was to estimate the effect of PF on CIA mice, and explore the mechanism of PF in bone destruction. We demonstrated that PF treatment significantly ameliorated CIA through inflammatory response inhibition and bone destruction suppression. Furthermore, PF treatment markedly decreased osteoclast number through the altered RANKL/RANK/OPG ratio and inflammatory cytokines profile. Consistently, we found that osteoclast differentiation was significantly inhibited by PF through down-regulation of nuclear factor-κB activation in vitro. Moreover, we found that PF suppressed nuclear factor-κB activation by decreasing its translocation to the nucleus in osteoclast precursor cells. Taken together, our new findings provide insights into a novel function of PF in osteoclastogenesis and demonstrate that PF wouldbe a new therapeutic modality as a natural agent for RA treatment and other autoimmune conditions with bone erosion.

Study Type : In Vitro Study

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Sayer Ji
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