Toll-like receptors expressed by synovial fibroblasts perpetuate Th1 and th17 cell responses in rheumatoid arthritis.
Toll-like receptors expressed by synovial fibroblasts perpetuate Th1 and th17 cell responses in rheumatoid arthritis.
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滑膜成纤维细胞表达的 Toll 样受体使类风湿关节炎中的 Th1 和 Th17 细胞反应持久
DOI:
10.1371/journal.pone.0100266
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发表时间:
2014
期刊:
影响因子:
3.7
通讯作者:
Li Z
中科院分区:
文献类型:
--
作者:
Hu F;Li Y;Zheng L;Shi L;Liu H;Zhang X;Zhu H;Tang S;Zhu L;Xu L;Yang Y;Li Z
Rheumatoid arthritis (RA) is a chronic inflammatory disease characterized by synovial fibroblast hyperplasia and bone and cartilage erosion. Synovial fibroblast- and T cell-mediated inflammation plays crucial roles in the pathogenesis of RA. However how this inflammation is initiated, propagated, and maintained remains controversial. Here, we systemically examined the contribution of toll-like receptors (TLRs) to the inflammatory mediator production as well as Th1 and Th17 cell hyperactivity in RA. Our results show that rheumatoid arthritis synovial fibroblasts (RASF) express a series of TLRs, including TLR2, TLR3, TLR4, and TLR9, with the predominant expression of TLR3. Moreover, the expression levels of these TLRs were higher than those in osteoarthritis synovial fibroblasts (OASF). Ligation of TLR3, as well as TLR2 and TLR4, resulted in vigorous production of inflammatory cytokines, matrix metalloproteinases (MMPs), and vascular endothelial growth factor (VEGF) in RASF, with activation of the NF-κB, MAPK, and IRF3 pathways. More important, activation of these TLRs expressed by RASF exacerbated inflammatory Th1 and Th17 cell expansion both in cell-cell contact-dependent and inflammatory cytokine-dependent manners, which induced more IFN-γ and IL-17 accumulation. Targeting TLRs may modulate the inflammation in RA and provide new therapeutic strategies for overcoming this persistent disease.
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影响因子:
4
作者:
Taylor, Peter C.
通讯作者:
Taylor, Peter C.
影响因子:
3.7
作者:
Hu F;Zhang L;Zheng J;Zhao L;Huang J;Shao W;Liao Q;Ma T;Geng L;Yin CC;Qiu X
通讯作者:
Qiu X
影响因子:
--
作者:
Ospelt, Caroline;Brentano, Fabia;Kyburz, Diego
通讯作者:
Kyburz, Diego
影响因子:
--
作者:
Brentano, F;Schorr, O;Kyburz, D
通讯作者:
Kyburz, D
影响因子:
4.4
作者:
Akira, S;Hemmi, H
通讯作者:
Hemmi, H