含有7的F-Box和WD重复域通过调节MYB稳定性和无处不在性来诱导传染性骨髓炎
Yongbo Wan1, Gehan Jiang2, Haojie Shan3
1Department of Orthopaedic Surgery, Haikou Orthopedic and Diabetes Hospital of Shanghai Sixth People's Hospital, Haikou, Hainan, China.
Scandinavian journal of immunology
|November 2, 2024
概括
含有7 (Fbxw7) 的F-Box和WD重复域通过调节MYB稳定性促进骨髓炎. 在患者和巨细胞中减少Fbxw7表达减少了在黄金葡萄球菌感染期间的炎症症状和骨损失.
科学领域:
- 免疫学 免疫学 免疫学
- 分子生物学分子生物学
- 病理学 病理学 病理学
背景情况:
- 骨髓炎是一种涉及巨细胞和炎症的骨感染.
- 含有7 (Fbxw7) 的F-Box和WD重复域是一种瘤抑制剂和E3无素酶.
- Fbxw7在骨髓炎发病过程中的作用尚不清楚.
研究的目的:
- 研究Fbxw7在骨髓炎中的作用.
- 探索Fbxw7影响骨髓炎进展的分子机制.
主要方法:
- 在患者骨髓细胞和感染S. aureus的巨细胞中测量Fbxw7mRNA水平.
- 产生的Fbxw7条件淘汰赛小鼠缺乏Fbxw7在骨髓细胞.
- 在Fbxw7缺乏的巨细胞中评估炎症性细胞因子表达 (IL-6,IL-23a,No2).
- 在淘汰赛小鼠中评估了骨质炎的严重程度 (体重减轻,细菌负担,骨损失).
- 确定了Fbxw7的交互伙伴,并测试了他们的交互.
主要成果:
- 在骨髓炎患者和感染S. aureus的大细胞中,Fbxw7的表达升高.
- 在受感染的巨细胞中,Fbxw7缺乏抑制了IL-6,IL-23a和Nos2的表达.
- Fbxw7淘汰赛小鼠的体重减轻,细菌负担降低,骨损失减少.
- Fbxw7与MYB相互作用,其缺乏导致MYB水平增加并减少MYB无处不在.
结论:
- Fbxw7促进骨髓炎的症状.
- Fbxw7通过控制MYB无处不在和稳定性来调节骨髓炎.
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