血小板驱动的单细胞激活通过HIF-1α-NLRP3-EGR-1轴促进缺氧性血栓炎症
Shankar Chanchal1, Kashika Singh1, Raishal Safdar1
1Department of Biotechnology, Faculty of Life Sciences, Jamia Millia Islamia, New Delhi.
Haematologica
|October 9, 2025
概括
缺氧通过激活HIF-1α-NLRP3炎症酶途径促进深静脉血栓 (DVT),导致无菌炎症和血栓形成. 针对这一轴为缺氧诱导的血栓炎症提供了潜在的治疗策略.
科学领域:
- * 心血管生物学 * 心血管生物学
- * 炎症研究 炎症研究
- * 血栓形成和血液静止
背景情况:
- *低氧是已知的血栓塞栓症的危险因素,特别是深静脉血栓症 (DVT).
- * 缺氧,无菌炎症和血栓形成之间的相互作用是复杂的,并未完全阐明.
- *NLRP3炎症酶和HIF-1α与炎症过程和血栓形成有关.
研究的目的:
- * 调查缺氧,无菌炎症和血栓形成之间的机械联系.
- * 确定关键的分子参与者和细胞相互作用驱动低氧诱导的DVT.
- * 评估人类高海拔DVT中确定的点的转化潜力.
主要方法:
- * 综合体内细胞系,ex vivo人体初级血液单核细胞 (hPBMC),体内动物模型和人类患者研究.
- * 在低氧条件下研究了单细胞粘附,炎酶激活和凝血因子表达.
- *利用药理抑制剂和siRNAs来评估目标分子的治疗潜力.
主要成果:
- *低氧增加单细胞通过CD11a/CD18和F11R.R.通过内皮细胞的粘附.
- *确定HIF-1α-NLRP3-Egr1-TF/FVII轴对于无菌炎症诱导的凝血至关重要.
- *在高海拔DVT患者中确认了HIF-1α,NLRP3,Egr1和TF/FVII的升高水平.
结论:
- * HIF-1α-NLRP3-Egr1-TF/FVII轴是缺氧诱导的血栓炎症的一个关键调解器.
- * 准这一轴可能会逆转缺氧驱动的前血栓形成过程.
- * 这一途径代表了在低氧条件下预防和治疗DVT的有前途的治疗标.
更多相关视频
相关概念视频
Inflammation
61.6K
Overview
61.6K
Formation of the Platelet Plug
8.7K
The platelet phase, the second stage of hemostasis, commences around 15-20 seconds after an injury. It follows and overlaps with the vascular phase, during which blood vessels constrict to minimize blood loss.
As the injured blood vessel contracts, endothelial cells undergo contraction, revealing collagen fibers in the basement membrane and underlying connective tissue. Furthermore, the plasma membrane of endothelial cells becomes adhesive, preparing the site for platelet adhesion. Platelets...
As the injured blood vessel contracts, endothelial cells undergo contraction, revealing collagen fibers in the basement membrane and underlying connective tissue. Furthermore, the plasma membrane of endothelial cells becomes adhesive, preparing the site for platelet adhesion. Platelets...
8.7K
Structure and Function of Platelets
2.9K
The cell fragments known as platelets are disc-shaped, with an average diameter of about 3 μm and a thickness of roughly 1 μm. They play a crucial role in the body's vascular clotting system, which also involves plasma proteins, blood cells, and blood vessel tissues.
Platelets are continually replenished, circulating in the bloodstream for 9-12 days before being removed by phagocytes, primarily in the spleen. A microliter of circulating blood contains between 150,000 and 450,000...
Platelets are continually replenished, circulating in the bloodstream for 9-12 days before being removed by phagocytes, primarily in the spleen. A microliter of circulating blood contains between 150,000 and 450,000...
2.9K
Regulation of Angiogenesis and Blood Supply
3.3K
Rapidly dividing tumors, embryos, and wounded tissues require more oxygen than usual, lowering the oxygen concentration in the blood. At low oxygen or hypoxic conditions, an oxygen-sensitive transcription factor called the hypoxia-inducible factor 1 or HIF1 is activated. HIF1 is a dimeric protein of alpha (ɑ) and beta (β) subunits. Under optimal oxygen conditions, HIF1β is present in the nucleus while HIF1ɑ remains in the cytosol. HIF1ɑ is hydroxylated by prolyl...
3.3K
Intracellular Signaling Affects Focal Adhesions
3.5K
Integrins act both as extracellular input receivers and as intracellular processing activators. As their name suggests, integrins are entirely integrated into the membrane structure. Their hydrophobic membrane-spanning regions interact with the phospholipid bilayer's hydrophobic region. These membrane receptors provide extracellular attachment sites for effectors like hormones and growth factors. They activate intracellular response cascades when their effectors are bound and active.
Some...
Some...
3.5K
Differentiation of Common Myeloid Progenitor Cells
3.9K
Common myeloid progenitors (CMPs) are oligopotent cells that can differentiate into granulocytes and macrophages. Granulocytes and macrophages are essential for protecting the body against bacterial, viral, or fungal infections. They migrate from the bone marrow into the circulating blood to reach specific tissue sites where they differentiate and help in immune surveillance. However, they survive only for a few days and must be continuously made available to the organism to maintain a robust...
3.9K


