训练有素的免疫力会导致髓状细胞的高凝固性
Aisling M Rehill1,2, Seán McCluskey1,2, Anna E Ledwith3
1Irish Centre for Vascular Biology, School of Pharmacy and Biomolecular Sciences, RCSI University of Medicine and Health Sciences, Dublin, Ireland.
训练有素的免疫,一种持久的免疫细胞记忆,增强了髓状细胞的原血栓活动. 这种与炎症性疾病相关的不适应性反应为免疫血栓性疾病提供了新的治疗点.
科学领域:
- 免疫学 免疫学 免疫学
- 血液学 血液学 血液学
- 病理生理学 病理生理学
背景情况:
- 炎症性疾病与增加的血栓形成风险之间的联系尚未完全理解.
- 训练有素的免疫包括在最初的炎症暴露后持久的先天免疫细胞记忆.
- 这种记忆可以导致对后续刺激的反应过度.
研究的目的:
- 调查训练有素免疫力是否有助于增加血栓形成风险.
- 在训练免疫中确定增强髓状细胞前血栓活动背后的机制.
- 探索免疫血栓疾病的潜在治疗点.
主要方法:
- 巨细胞被训练用β-葡萄糖或血红素,然后用脂多糖 (LPS) 刺激.
- 测量了益血凝剂活性,重点是酸美林酶介导的组织因子解密.
- 随着时间的推移,被训练小鼠的脏单细胞,造血原生细胞和骨髓液中的血凝剂活性被评估.
主要成果:
- 来自受过训练的捐赠者的巨细胞在LPS刺激后显著增强了前凝剂活性.
- 这种增强是通过依赖酸髓酶的组织因子解密来实现的.
- 经过训练的单细胞,原生细胞和骨髓液在训练后长达4周内表现出持续的血凝剂活性.
结论:
- 训练有素的免疫力促进了不适应性髓状细胞的原血栓活动.
- 与训练免疫相关的代谢变化可能导致免疫血栓形成.
- 准训练有素的免疫力是预防炎症条件下的血栓性并发症的潜在策略.
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