在骨髓细胞中准mTOR可以防止感染相关的炎症
Yohana C Toner1,2,3, Jazz Munitz1,2,4, Geoffrey Prevot1,2,4
1BioMedical Engineering and Imaging Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA.
iScience
|April 3, 2025
概括
这项研究揭示了猛素 (mTOR) 途径的哺乳动物点是COVID-19期间髓状细胞调节的关键. 一种抑制mTOR的纳米生物 (mTORi-nanobiologic) 疗法在临床前模型中有效降低了炎症.
科学领域:
- 免疫学 免疫学 免疫学
- 纳米医学是一种纳米医学.
- 分子生物学分子生物学
背景情况:
- 危及生命的超级炎症可能是由感染,癌症和创伤引起的.
- 猛素 (mTOR) 途径的哺乳动物点与髓状细胞调节有关,特别是在COVID-19患者中.
研究的目的:
- 为了研究mTOR途径在高炎症期间髓状细胞调节中的作用.
- 在高炎症和急性呼吸困扰综合征的临床前模型中评估mTOR抑制纳米生物 (mTORi-nanobiologic) 的治疗潜力.
主要方法:
- 循环免疫细胞的单细胞RNA测序.
- 使用人类原发性免疫细胞进行体外研究.
- 在活体中研究过度炎症和急性呼吸困扰综合征的小鼠模型,使用18F-FDG吸收和流细胞计.
主要成果:
- 在COVID-19患者中,mTOR途径关键调节髓状细胞.
- 在体外,mTORi-纳米生物有效抑制感染相关的炎症.
- 在体内,mTORi-纳米生物疗法显著降低了小鼠模型中的血液形成器官代谢活动和炎症.
结论:
- 用mTORi-纳米生物药物向骨髓形成是一种有希望的策略,可以减轻感染相关并发症中的器官炎症.
- 在高炎症的临床前模型中,mTORi纳米生物药物在减少炎症和代谢活性方面表现出有效性.
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