中性粒细胞扩散和脱压疾病肺损伤中的NETosis:通过多模型询问验证的P-selectin/PSGL-1/NOX2/PAD4轴控制的途径
1The First Affiliated Hospital of Nanjing Medical University, Nanjing, China; Naval Medical Centre, Shanghai, China.
Free radical biology & medicine
|July 18, 2025
概括
减压性疾病 (DCI) 肺损伤涉及P-selectin激活中性粒细胞,导致损伤. 针对这种途径为DCI肺损伤提供了潜在的治疗策略.
科学领域:
- 病理学 病理学 病理学
- 分子生物学分子生物学
- 生物医学工程 生物医学工程
背景情况:
- 减压性疾病 (DCI) 导致多器官损伤,包括肺损伤,由于快速的压力变化.
- 中性粒细胞激活和细胞外陷 (NETosis) 形成与DCI诱导的肺病理有关.
研究的目的:
- 为了阐明DCI诱导的肺损伤的分子机制.
- 用一个新的体外模型来验证中性粒细胞扩散和NETosis在DCI肺损伤中的作用.
- 探索缓解DCI肺损伤的治疗目标.
主要方法:
- 综合转录和蛋白质组分析以确定关键分子参与者.
- 开发和利用人类肺部芯片上的有机体 (OOC) 模型来模拟DCI.
- 在体内药理干预以测试治疗策略.
主要成果:
- 通过PSGL-1,P-选择素通过PSGL-1激活中性粒细胞NADPH氧化酶2 (NOX2) 和丁丁氨酸减小酶4 (PAD4),调节中性粒细胞扩散和NETosis.
- OOC模型证实了内皮屏障损伤,中性粒细胞外内皮迁移和NETosis在DCI肺损伤中的关键作用.
- 向P-选择素/PSGL-1或NOX2/PAD4轴在体内显示出治疗潜力.
结论:
- 涉及P-选择素,NOX2和PAD4的信号级联是DCI诱导的肺损伤的核心.
- OOC模型为研究DCI病原和验证治疗点提供了一个强大的平台.
- 抑制中性粒细胞激活通路为DCI肺损伤提供了一个有希望的治疗途径.
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