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转化生长因子-β1与通过调节肺损伤模型小鼠的巨细胞两极分化与炎症解决有关

Ren Jing¹, Xianlong Xie², Xiaoting Liao³

¹Guangxi Clinical Research Center for Anesthesiology, Nanning 530021, PR China; Department of Breast and Thyroid Surgery, South China Hospital, Medical School, Shenzhen University, Shenzhen 518116, PR China.

International immunopharmacology

|September 1, 2024

概括

转化生长因子-β1 (TGF-β1) 促进M2巨细胞的两极分化,解决呼吸机引起的肺损伤. 精确的TGF-β1分泌是治愈炎症性肺损伤的关键.

科学领域:

免疫学免疫学免疫学
肺部医学肺部医学
细胞生物学细胞生物学

背景情况:

机械通风对于急性呼吸困难综合征至关重要,但可以导致呼吸器诱导的急性肺损伤 (ALI).
在ALI中,巨细胞两极分化对于解决炎症和组织修复至关重要.
转化生长因子β1 (TGF-β1) 与炎症过程有关.

研究的目的:

调查TGF-β1在减弱呼吸机引起的ALI中的作用.
为了确定TGF-β1是否促进M2巨细胞两极分化,以解决肺损伤.
了解TGF-β1在控制呼吸机引起的肺炎中的精确机制.

主要方法:

C57BL/6小鼠接受机械通风,并在输出管后进行监测.
肺损伤,透气性和炎症通过支气管支气管洗,ELISA和组织学来评估.
巨细胞子集,TGF-β1水平和蛋白质/基因表达被分析使用流动细胞计,西斑和qPCR.

主要成果:

呼吸器诱导的肺损伤和炎症在呼吸后3-10天后消失,与增加的TGF-β1.1相关.
M1巨细胞在急性阶段占主导地位,而M2a和M2c巨细胞在分辨率期间增加.
外源的TGF-β1减轻了肺损伤,而过度的TGF-β1抑制了M2极化和损伤恶化.

结论:

以TGF-β1为媒介的巨细胞两极分化对于解决呼吸器诱导的炎症性肺损伤至关重要.
精确调节TGF-β1分泌对于有效的肺组织修复至关重要.
针对TGF-β1诱导的巨细胞两极分化可能为ALI提供治疗策略.

关键词:

炎症炎症是一种炎症.在M2c巨细胞中.巨细胞的两极分化在TGF-β1中.呼吸机引起的肺损伤

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