转录因子Nrf2在小鼠巨细胞激活综合征中的保护作用
Paul M Gallo1, Em Elliott2, Grace C Ford2
1Division of Hematology, Children's Hospital of Philadelphia, 3615 Civic Center Blvd, Philadelphia, PA 19104, United States.
Journal of leukocyte biology
|October 11, 2024
概括
转录因子 Nrf2 在巨细胞激活综合征 (MAS) 中起着保护作用. 红细胞产品激活Nrf2抑制了促炎性细胞因子的产生,在小鼠模型中降低了疾病的严重程度.
科学领域:
- 免疫学 免疫学 免疫学
- 转毒生物学 转毒生物学
- 血液学 血液学 血液学
背景情况:
- 巨细胞激活综合征 (MAS) 涉及多系细胞衰竭和细胞激活高血.
- 核因子红色素2相关因子2 (Nrf2) 是细胞回氧稳态的关键调节者.
- 了解Nrf2在MAS中的作用对于开发向疗法至关重要.
研究的目的:
- 为了研究Nrf2在超炎症的小鼠模型中的作用.
- 阐明由红细胞产品激活Nrf2调节促炎性细胞因子产生的机制.
主要方法:
- 在野生类型和Nrf2淘汰赛小鼠中,使用TLR9主激素CpG诱导了小鼠MAS.
- 评估了临床和生化标志物,包括细胞因子概况和器官病理.
- 在体外研究中利用骨髓衍生的巨细胞和树突细胞来检查Nrf2-依赖的细胞因子表达的调节.
主要成果:
- 在患有高炎症性疾病的患者中,nrf2基因表达升高.
- Nrf2淘汰赛小鼠表现出恶化过度炎症,器官病理和超细胞动血.
- 在体外,氧化红细胞和血红素以Nrf2依赖的方式抑制了IL-12的产生.
结论:
- 转录因子Nrf2在患有高炎症性疾病的患者中表达高.
- Nrf2在小鼠MAS模型中表现出一种保护作用.
- 通过Nrf2介导的促炎性细胞因子的抑制有助于其在MAS中的保护作用.
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