在慢性肌病的发病过程中,FABP4的升调诱导了炎症
Zebin Ma1, Angel Yuk Wa Lee1, Cheuk Hin Kot1
1Department of Orthopaedics and Traumatology, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong SAR, China.
Journal of orthopaedic translation
|July 15, 2024
概括
脂肪酸结合蛋白4 (FABP4) 在肌病症中被上调,导致炎症和病原性. 在这种情况下,FABP4可以作为治疗点.
科学领域:
- 生物化学 生化学
- 免疫学 免疫学 免疫学
- 整形外科 整形外科 整形外科
背景情况:
- 过度的炎症是肌病发展的关键因素.
- 脂肪酸结合蛋白4 (FABP4),一种促炎性阿迪波金,与各种炎症性疾病有关.
研究的目的:
- 研究FABP4表达及其与肌病中的炎症性细胞因子的相关性.
- 评估FABP4对肌病理和炎症的影响.
- 探索FABP4对炎症性细胞因子表达和IL-1β对肌衍生干细胞/原生细胞 (TDSCs) FABP4表达的影响.
主要方法:
- 临床肌病样本和小鼠模型的免疫组织化学和免疫光染色.
- 在注射后对小鼠肌进行组织学和微CT分析.
- 定量实时PCR (qRT-PCR) 和免疫光测定在孤立的人类和小鼠TDSCs.
主要成果:
- 在骨和旋转袖口肌病样本中,FABP4的调节显著上升,与IL-1β和TNF-α等炎症标志物共同定位.
- 在小鼠肌中,FABP4注射诱导了类似肌病变化的变化和炎症性细胞因子表达的增加.
- 在TDSC中,FABP4调节了炎症性细胞因子表达,而IL-1β刺激增加了这些细胞中的FABP4表达.
结论:
- 上调的FABP4因过度炎症而涉及肌病变的发病.
- 在肌炎症期间,TDSCs代表了FABP4的潜在来源.
- FABP4成为肌病的潜在治疗标.
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