CD244和SHP2之间的相互作用通过向MAPK/NF-κB信号通路来调节慢性阻塞性肺病中的炎症
Xiaobing Gao1, Suhua Shao1, Xi Zhang2
1Department of Emergency Medicine, General Hospital of Central Theater Command, Wuhan, Hubei Province, China.
PloS one
|October 18, 2024
概括
CD244/SHP2通路调节COPD的炎症和亡,提供了一个潜在的治疗点. 调节CD244会影响参与疾病进展的关键信号通路.
科学领域:
- 肺部医学 肺部医学
- 分子生物学分子生物学
- 免疫学 免疫学 免疫学
背景情况:
- 慢性阻塞性肺病 (COPD) 的发病过程涉及复杂的细胞和分子机制.
- 香烟烟雾提取物 (CSE) 是COPD的主要原因,诱导呼吸道上皮细胞的炎症和亡.
- 在COPD中CD244和Src同质性2域含有酸酶-2 (SHP2) 的作用尚未完全阐明.
研究的目的:
- 为了研究CD244和SHP2在COPD病变发生过程中的相互作用.
- 为了确定CD244调制对CSE治疗的人类支气管上皮细胞 (HBE) 中的亡和炎症的影响.
- 探索CD244/SHP2轴作为COPD治疗点的潜力.
主要方法:
- 对COPD中差异表达基因 (DEGs) 的GSE100153数据集的分析.
- 权重基因共同表达网络分析 (WGCNA) 以确定关键基因模块.
- 对DEGs的功能丰富分析.
- 在体外实验中使用CSE处理的HBE细胞,包括CD244敲击和过度表达.
- 同免疫沉 (Co-IP) 证实蛋白相互作用.
- 西部斑点分析以评估信号通路激活 (NF-κB,MAPK).
主要成果:
- WGCNA发现了一种绿模块与COPD样本有显著的相关性.
- CD244表达被CSE以剂量依赖的方式上调,与炎症类细胞因子相关.
- CD244敲击减少了CSE诱导的亡和炎症;过度表达加剧了这些影响.
- 联合IP证实了CD244和SHP2之间的物理相互作用.
- 调节CD244受影响的NF-κB和MAPK信号通路组件,通过SHP2敲击扭转效应.
结论:
- CD244/SHP2轴在CSE暴露的HBE细胞中调节炎症和亡反应中起着至关重要的作用.
- 这个轴是COPD病变发生过程中的关键参与者.
- 向CD244/SHP2通路为COPD提供了一个有前途的治疗策略.
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