破骨细胞在类风湿关节炎致骨破坏病理变化中的作用及其调控

被引:53
作者
陈红梅
王友莲
机构
[1] 江西省人民医院风湿免疫科
关键词
破骨细胞; 类风湿关节炎; 骨破坏; 细胞因子;
D O I
暂无
中图分类号
R593.22 [类风湿性关节炎];
学科分类号
100201 [内科学];
摘要
类风湿关节炎(RA)是一种严重的慢性自身免疫性炎症性疾病,关节软骨及骨破坏是RA的主要病理变化,是患者致残的主要原因。破骨细胞(OC)在RA骨破坏的病理过程中起关键作用,其调控依赖于OC形成、分化及活化的过程。巨噬细胞、滑膜成纤维细胞等是OC形成的主要来源,促炎性细胞因子在这个过程中起重要作用。主要的是RANK/RANKL/OPG、MCSF、TNF、IL-1和IL-17,这些细胞因子通过不同的信号传导通路促进OC的成熟及分化;此外,有些细胞因子对OC的分化及骨吸收作用产生负性调控作用,如IL-27、IL-4、IL-10、IFN-γ,大部分细胞因子通过RANK/RANKL/OPG系统,直接或间接作用于OC,两者之间的平衡决定骨破坏的结局。这些细胞因子通过多条信号传导通路介导OC对骨破坏的调控作用,其中NFATc1是关键的调节因子,如RANKL通过NF-κB/AP-1/c-fos和钙离子信号通路两条信号通路,调节NFATc1的活化,促进OC分化;TNF通过激活NF-κB,JNK和p38通路,活化NFATc1促进OC形成,还包括MAPK、STAT等通路。深入了解OC的病理过程及骨形成和骨吸收机制,监测及干扰促进OC活化的细胞因子,为早期RA的治疗提供新的靶点。
引用
收藏
页码:1168 / 1173
页数:6
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