Interferon-gamma inhibits interleukin-1beta-induced matrix metalloproteinase production by synovial fibroblasts and protects articular cartilage in early arthritis.

Interferon-gamma inhibits interleukin-1beta-induced matrix metalloproteinase production by synovial fibroblasts and protects articular cartilage in early arthritis.
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DOI:
10.1186/ar2960
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发表时间:
2010
影响因子:
4.9
通讯作者:
Williams AS
Williams AS
中科院分区:
医学2区
文献类型:
--
作者:
Page CE;Smale S;Carty SM;Amos N;Lauder SN;Goodfellow RM;Richards PJ;Jones SA;Topley N;Williams AS

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症状发作后的最初几个月是类风湿性关节炎(RA)的一个病理学不同阶段。我们使用相关的实验模型来确定干扰素-γ(IFN-γ)在早期炎性关节炎中的病理作用。我们使用RA成纤维细胞样滑膜细胞(FLS)、牛关节软骨外植体(BACE)/RA-FLS共培养模型和实验性炎症性关节炎模型(小鼠抗原诱导的关节炎(AIA))研究了IFN-γ调节白细胞介素-1 β(IL-1β)诱导的退行性反应的能力。IFN-γ在体外可调节IL-1β驱动的基质金属蛋白酶(MMP)的合成,导致MMP-1和MMP-3的产生下调。IFN-γ不影响IL-1β诱导的RA FLS产生的金属蛋白酶组织抑制剂-1(TIMP-1),但使MMP/TIMP-1平衡充分倾斜,以减弱我们的BACE模型中的糖胺聚糖耗竭。IFN-γ在AIA的第3天减少关节炎关节中的IL-1β表达并防止软骨退变。IFN-γ的早期治疗干预可能对炎症性关节炎期间的组织保护反应至关重要。
The first few months after symptom onset represents a pathologically distinct phase in rheumatoid arthritis (RA). We used relevant experimental models to define the pathological role of interferon-γ (IFN-γ) during early inflammatory arthritis. We studied IFN-γ's capacity to modulate interleukin-1β (IL-1β) induced degenerative responses using RA fibroblast-like synoviocytes (FLS), a bovine articular cartilage explant (BACE)/RA-FLS co-culture model and an experimental inflammatory arthritis model (murine antigen-induced arthritis (AIA)). IFN-γ modulated IL-1β driven matrix metalloproteinases (MMP) synthesis resulting in the down-regulation of MMP-1 and MMP-3 production in vitro. IFN-γ did not affect IL-1β induced tissue inhibitor of metalloproteinase-1 (TIMP-1) production by RA FLS but skewed the MMP/TIMP-1 balance sufficiently to attenuate glycosaminoglycan-depletion in our BACE model. IFN-γ reduced IL-1β expression in the arthritic joint and prevented cartilage degeneration on Day 3 of AIA. Early therapeutic intervention with IFN-γ may be critical to orchestrate tissue-protective responses during inflammatory arthritis.
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