在急性性骨髓炎中,SPA通过抑制SETD2来抑制hBMSC骨质分化和M1巨分化,从而抑制急性性骨髓炎
Dongsheng Zhu1, Feng Chen2, Hongjia Qiang3
1Department of Pediatric Surgery, The First People's Hospital of Lianyungang, Lianyungang, Jiangsu Province, China. zhudongsheng@tmu.edu.cn.
Scientific reports
|June 3, 2024
概括
在骨髓炎中SETD2 (含SET域2) 的下调会增加M1巨细胞的极化和糖解. 这一途径涉及HIF-1α调节,并影响骨愈合,建议SETD2作为治疗点.
科学领域:
- 分子生物学分子生物学
- 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:
- 急性性骨髓炎是一种影响儿科患者的骨感染.
- 在骨髓炎期间巨细胞功能中SETD2 (含SET域2) 的作用尚不清楚.
- 巨细胞两极分化和代谢重编程在炎症性骨疾病中至关重要.
研究的目的:
- 研究SETD2对小儿骨髓炎中巨细胞功能的影响.
- 阐明SETD2在这种疾病中的作用背后的分子机制.
- 探索SETD2作为骨髓炎的潜在治疗点.
主要方法:
- 人类骨髓介质干细胞 (hBMSC) 和THP-1衍生巨细胞的共同培养模型.
- 技术包括qPCR,西式涂抹,ELISA,性酸酶活性测试,阿利沙林红色S染色,露西法酶记者测试和ChIP.
- 分析了SETD2,HIF-1α表达,M1巨细胞两极分化,糖解和骨质分化.
主要成果:
- 在受到葡萄球菌蛋白A (SPA) 刺激的THP-1细胞中,SETD2的表达减少.
- 降低SETD2的调节导致M1巨细胞的极化和糖解增加,由HIF-1α介导.
- 确定M1巨分化是BMP4对hBMSC骨质分化的抑制作用的调解者.
结论:
- 在骨髓炎期间,SETD2在调节巨细胞功能和新陈代谢方面发挥着至关重要的作用.
- SETD2-HIF-1α轴影响M1极化和糖解,影响骨病原性.
- 准SETD2为治疗骨髓炎提供了一个新的治疗策略.
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