由饮食诱导的肥胖引起的中性粒细胞细胞外陷增加,延迟骨折愈合
Xuan Zhao1,2, Qijun Wang1,2, Wei Wang1,2
1Department of Orthopedics, Xuanwu Hospital, Capital Medical University, Beijing, China.
概括
肥胖症通过增加中性粒细胞外细胞陷 (NETs) 来延缓骨折愈合. 准NET可能会改善肥胖个体的骨修复,为骨折恢复提供一种新的治疗策略.
科学领域:
- 生物医学科学 生物医学科学
- 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:
- 肥胖是一个已知的危险因素,影响骨折愈合和非联合.
- 肥胖对骨修复产生负面影响的确切机制尚未完全理解.
- 中性粒细胞是骨折愈合早期关键免疫细胞.
研究的目的:
- 研究中性粒细胞透和中性粒细胞外细胞陷 (NETs) 在与肥胖有关的骨折愈合延迟中的作用.
- 阐明将肥胖,NET和骨修复受损联系在一起的分子机制.
主要方法:
- 使用了饮食诱导肥胖 (DIO) 的小鼠模型和体内骨折愈合评估.
- 在内分泌阶段分析了中性粒细胞透,NET形成和发育.
- 使用骨髓介质干细胞 (BMSC) 和巨细胞进行了体外研究,以评估NETs对细胞分化和两极化的影响.
主要成果:
- 饮食诱导的肥胖加速了中性粒细胞的透,并在骨折修复的内分体阶段增加了NET的形成.
- 基因删除Padi4减少了NET的形成,并改善了高脂肪饮食引起的骨折愈合延迟.
- 试验室实验表明,NETs抑制了BMSC的骨质分化,并通过NLRP3炎症酶激活促进了M1样巨细胞极化.
结论:
- 在内分泌阶段形成的NET是导致肥胖相关的骨折愈合延迟的关键因素.
- 针对NETs提供了一个潜在的治疗策略,以改善肥胖患者的骨折恢复.
关键词:
饮食引起的肥胖症 饮食引起的肥胖症骨折,骨折,骨折,骨折,骨折,骨折,骨折,骨折,骨折,骨折,骨折,骨折,骨折,骨折,骨折,骨折,骨折,骨折,骨折,骨折,骨折.巨细胞的两极分化中性粒细胞外细胞陷骨质性分化的骨质性差异化更多相关视频
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