补充因子H相关蛋白-5 (CFHR5) 在结性脊髓炎中加剧了病态骨形成
Ji-Hyun Lee1,2, Seung Hoon Lee3, Chanhyeok Jeon3
1Department of Rheumatology, Eulji Rheumatology Research Institute, Eulji University School of Medicine, 712 Dongil-Ro, Uijeongbu, Gyeonggi-Do, 11759, Republic of Korea.
概括
补充因子H相关蛋白-5 (CFHR5) 在结性脊柱炎 (AS) 中升高,并加剧了病态骨质形成. 准CFHR5可能为AS患者提供新的治疗策略.
科学领域:
- 类风湿病学 类风湿病学
- 免疫学 免疫学 免疫学
- 骨生物学 骨生物学 骨生物学
背景情况:
- 化脊柱炎 (AS) 是一种慢性炎症性疾病,其特征是过度的新骨形成.
- 补充因子H相关蛋白-5 (CFHR5) 在AS患者中升高.
- CFHR5在AS病变发生中的作用,特别是新的骨形成,尚未完全理解.
研究的目的:
- 研究CFHR5在与结性脊柱炎相关的病态骨形成中的作用.
- 探索CFHR5,促炎细胞因子和AS中的C反应蛋白 (CRP) 之间的关系.
- 确定CFHR5对AS模型中的骨质产生器和宫外骨形成的影响.
主要方法:
- 在AS患者和健康对照者 (HC) 中,CFHR5和益炎性细胞因子 (TNF,IL-6,IL-17A,IL-23) 的量化血清水平.
- 分析了CFHR5,细胞因子和CRP之间的相关性.
- 在AS的小鼠模型中 (注射curdlan的SKG) 给药了复合CFHR5,并通过微型CT评估了骨形成.
- 检查了AS衍生的骨质原生体中CFHR5的表达及其对骨质原体分化和矿化 in vitro的影响,包括MMP13的表达.
主要成果:
- 与HC患者相比,AS患者的CFHR5和益炎性细胞因子升高.
- 在AS中,CFHR5水平与高CRP呈正相关性,但与炎症性细胞因子无显著相关性.
- 在体内,CFHR5治疗增加了AS模型小鼠的脚关节外宫骨形成.
- 在体外,CFHR5提高了AS-骨质原生体的基底表达,并在骨质分化过程中增强了骨矿化,伴随着MMP13表达的增加.
结论:
- CFHR5在AS上调节,并有助于病态骨形成.
- 在AS中,CFHR5加剧了宫外骨的形成,并增强了骨质原生体矿化.
- 对CFHR5的治疗向是治疗结性脊柱炎的潜在策略.
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