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在人类免疫血栓,内毒素和败血症期间,单细胞子集中的组织因子表达
Kathryn M Musgrave1, Jonathan Scott2, Wezi Sendama3
1Translational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, UK; Department of Haematology, The Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, UK.
Thrombosis research
|June 1, 2023
概括
在败血症中,单细胞子集的组织因子表达不同. 这项研究揭示了单细胞子集 (古典,中间,非古典) 在败血症和内毒性病期间如何改变组织因子表达.
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:
- 单细胞上的组织因子 (TF) 在败血症引起的凝血病中至关重要.
- 了解跨单细胞子集的TF表达对于败血症研究至关重要.
研究的目的:
- 在各种条件下,研究TF表面表达在不同的单细胞子集 (经典,中间,非经典) 上.
- 阐明单细胞子集在与败血症相关的凝血病中的作用.
主要方法:
- 使用人类单细胞和内皮细胞共同培养的体外研究.
- 在志愿者体内体内毒素的模型,由脂聚糖 (LPS) 诱导.
- 在重症监护病房中对单细胞TF表达的分析,这些患者患有败血症或重症.
主要成果:
- LPS刺激和内皮接触改变了单细胞子集的比例.
- 在LPS后的古典和非古典单细胞上,TF表达增加.
- 内毒素导致过渡性单细胞衰减和凝血激活.
- 在内毒性病期间,TF在中间单细胞上升调节;约60%的个体显示了广泛的TF上升调节.
- 与非败血症对照组相比,严重病的败血症患者在中间和非经典单细胞上表现出更高的TF.
- 经典单细胞TF表达在败血症恢复后增加.
结论:
- 单细胞子集TF表达是动态的,在健康,内毒性和败血症方面有显著的变化.
- 单细胞子集上明显的TF表达模式有助于败血症病理生理学.
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