IL-17 + γδT细胞:在高压氧气治疗中的新目标,可以减少脊髓损伤
Mo Liu1, Zhencheng Sun2, Fang Liang1
1Department of Hyperbaric Oxygen, Beijing Chao-Yang Hospital Capital Medical University, Beijing, 100020, China.
Journal of translational medicine
|October 18, 2025
概括
高压氧气疗法通过减少炎症性IL-17+ γδT细胞来改善脊髓损伤的恢复. 这种治疗调节了STAT3/RORγt通路,为SCI提供了潜在的治疗点.
科学领域:
- 免疫学 免疫学 免疫学
- 神经科学是一个神经科学.
- 生物医学工程 生物医学工程
背景情况:
- 脊髓损伤 (SCI) 引发炎症反应,高压氧 (HBO) 治疗显示潜在的衰减.
- 在SCI中HBO的抗炎作用背后的精确分子机制仍然不完全理解.
- 马三角形T (γδT) 细胞被认为是关键的免疫调节器,这表明它们参与SCI病理生理学和HBO的治疗作用.
研究的目的:
- 阐明HBO治疗减轻脊髓损伤的机制,重点关注 γδT 细胞的作用.
- 为了研究HBO对γδT细胞种群的影响,特别是IL-17产生γδT细胞,在SCI之后.
- 探索STAT3/RORγt信号通路作为HBO在SCI中的影响的潜在调解者.
主要方法:
- 在野生型 (WT),TCRδ-/-和IL-17小鼠中建立伤SCI模型.
- 对SCI模型进行HBO治疗,并评估后肢运动功能,运动神经元存活率,γδT细胞比例和炎症性细胞因子水平.
- 在接受HBO治疗后,在WT和STAT3过度表达的小鼠中测量STAT3和RORγt蛋白和基因表达.
主要成果:
- 在SCI后的WT小鼠中,HBO治疗显著改善了发动机恢复和减少了γδT细胞,包括IL-17+γδT细胞和炎症性细胞因子.
- 在TCRδ-/-和IL-17小鼠中,HBO对运动功能和炎症的有益影响被废除了,这表明γδT细胞和IL-17的关键作用.
- 在WT小鼠中,HBO治疗抑制了STAT3和RORγt的表达,而STAT3的过度表达降低了HBO对IL-17+ γδT细胞和炎症的抑制作用.
结论:
- 在脊髓损伤后,IL-17+ γδT细胞是HBO抗炎作用的关键参与者.
- 通过STAT3/RORγt信号通路,HBO治疗可能会调节IL-17+γδT细胞.
- 这项研究提供了机制基础,并确定了HBO在SCI管理中的潜在治疗目标.
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