托芬代谢重编程可能有助于SARS-CoV-2感染小鼠和人类的原血栓环境
Saravanan Subramaniam1,2,3, Marc Arthur Napoleon3, Saran Lotfollahzadeh3
1Department of Pharmacology and Toxicology, School of Pharmacy, Massachusetts College of Pharmacy and Health Sciences, Boston, MA.
Blood vessels, thrombosis & hemostasis
|February 26, 2026
概括
严重急性呼吸系统综合征冠状病毒2 (SARS-CoV-2) 感染增加了tryptophan代谢物kynurenine. 这种代谢物激活基碳化合物受体 (AHR) 和组织因子 (TF) 途径,促进COVID-19中的血栓形成.
科学领域:
- 生物化学 生物化学
- 免疫学 免疫学 免疫学
- 病理学 病理学 病理学
背景情况:
- 由SARS-CoV-2引起的COVID-19破坏了血液凝固,导致血栓形成和器官衰竭.
- 与COVID-19相关的凝血病相关的特定原血栓代谢物尚未完全理解.
研究的目的:
- 为了研究托代谢物在SARS-CoV-2引起的凝血病中的作用.
- 探索金氨酸-氨酸碳化合物受体 (AHR) -组织因子 (TF) 轴作为潜在的治疗点.
主要方法:
- 利用感染SARS-CoV-2的K18-hACE2小鼠分析代谢物水平和酶活性.
- 在感染小鼠和人类患者的内皮细胞 (ECs) 中检查了AHR激活和TF表达.
- 测量了COVID-19患者血清中的kynurenine和相关代谢物水平.
- 评估了IDO-1和AHR抑制剂对TF活性的影响.
主要成果:
- 感染SARS-CoV-2的小鼠表现出高瑞宁水平和瑞宁生物发生酶 (IDO-1,TDO) 的活性增加.
- 在感染小鼠和人类的肺部和脏的EC中观察到AHR激活和TF表达.
- COVID-19患者血清显示基努伦因,基努伦酸,酸和酸的增加,与TF诱导活性相关.
- 在暴露于COVID-19患者血清的EC中,IDO-1和AHR抑制降低了TF活性.
结论:
- 在SARS-CoV-2感染上调节了胺2,3-二氧化酶1 (IDO-1),导致金氨酸及其原血栓代谢产物增加.
- kynurenine-AHR-TF轴与COVID-19相关的凝血病有关.
- 这一途径代表了COVID-19的潜在诊断和治疗目标.
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