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抑制MIF-CD74/CD44通路的加勒-9抑制了慢性关节炎的发生
Meiling Li1, Min-Kyung Nam2, Jung Gon Kim3
1Department of Biomedicine & Health Sciences, Department of Medical Life Sciences, College of Medicine, The Catholic University of Korea, Seoul, Korea; Department of Rheumatology and Immunology, The Second Affiliated Hospital of Soochow University, Suzhou, China.
概括
使用加勒-9 (sGal-9) 的新疗法有效地向了类风湿性关节炎 (RA) 中的侵袭性纤维细胞样同胞细胞 (FLS). 这种巨细胞迁移抑制因子 (MIF) 阻断剂减少了关节的破坏和炎症,提供了一个有前途的新治疗途径.
科学领域:
- 免疫学 免疫学 免疫学
- 类风湿病学 类风湿病学
- 分子生物学分子生物学
背景情况:
- 类风湿性关节炎 (RA) 涉及侵袭性纤维细胞样同胞细胞 (FLSs),导致软骨和骨质侵蚀,即使在缓解中也会持续下去.
- 目前针对FLS的RA疗法缺乏临床批准的药物.
研究的目的:
- 调查巨细胞迁移抑制因子 (MIF) 在RA-FLS攻击性中的作用.
- 评估加勒-9 (sGal-9) 作为抗MIF诱导的RA-FLS表型的CD44抑制剂的治疗潜力.
主要方法:
- 单细胞RNA测序确定了一个明显的MIF-高FLS子集与细胞功能障碍.
- 在实验室中评估sGal-9对MIF诱导的FLS扩散,迁移和入侵的影响.
- 在异种移植和原诱导关节炎小鼠模型中评估sGal-9的疗效.
主要成果:
- 高MIF的FLS表现出增加的生存率,增殖,迁移和CD44/CD44v6表达.
- 通过阻断MIF-CD44通路,sGal-9显著抑制了MIF诱导的RA-FLS攻击性行为.
- 在小鼠模型中,局部和全身sGal-9的使用减少了关节的破坏,并减轻了关节炎的严重程度.
结论:
- sGal-9有效地抑制RA-FLSs的破坏性表型.
- sGal-9作为一种新型抗MIF药物,具有对类风湿性关节炎的治疗潜力.
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