相关实验视频
Updated: Jun 20, 2026
13:42
A Murine Closed-chest Model of Myocardial Ischemia and Reperfusion
Published on: July 17, 2012
28.8K
转录组分析显示,缺血后调节抑制了肺缺血-再输液损伤中炎症基因的表达
Liangen Lin1, Congcong Sun2, Yuanwen Ye1
1Department of Emergency, Wenzhou People's Hospital, The Third Affiliated to Shanghai University, Wenzhou, Zhejiang, China.
Frontiers in genetics
|December 10, 2024
概括
缺血后调节 (I-post C) 通过减少炎症和抑制IL-17信号通路,防止肺缺血/反损伤 (LIRI). 这种治疗策略可能涉及中性粒细胞外细胞陷用于肺部保护.
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:
- 缺血后调节 (I-post C) 是对肺缺血/反损伤 (LIRI) 的治疗策略.
- I-post C在肺部的保护作用的精确分子机制尚未完全理解.
- 研究这些机制对于优化LIRI治疗至关重要.
研究的目的:
- 阐明肺组织I-post C的保护机制.
- 确定涉及I-post C介导肺部保护的分子调节网络.
- 了解特定基因和途径在缓解LIRI中的作用.
主要方法:
- 用RNA测序 (RNA-seq) 来分析来自Sham,缺血-再输液 (IR) 和I-post C组的老鼠肺组织中的基因表达.
- 进行了生物信息分析,包括基因本体学 (GO),基因和基因组的京都百科全书 (KEGG) 和基因组丰富分析 (GSEA).
- 蛋白质与蛋白质相互作用 (PPI) 网络分析,血素-素 (H&E) 染色,免疫光学和西方斑点被用于验证.
主要成果:
- I-post C显著减少了肺和肺组织中的炎症细胞透.
- 转录组分析在I-post C和IR组之间发现了38个差异表达基因 (DEG),CXCL1和CXCL6的显着下调.
- GO和KEGG分析强调了中性粒细胞激活,化学反应,IL-17,TNF和NF-κB信号通路的参与,GSEA证实了中性粒细胞化学反应和IL-17信号的下调.
结论:
- I-post C通过减轻炎症和抑制IL-17信号通路来保护LIRI.
- 降低CXCL1和CXCL6的调节似乎是I后C介导肺部保护的关键机制.
- 进一步的研究可能会探索中性粒细胞外细胞陷在这些保护作用中的参与.
相关概念视频
02:32Exon Recombination
The evolution of new genes is critical for speciation. Exon recombination, also known as exon shuffling or domain shuffling, is an important means of new gene formation. It is observed across vertebrates, invertebrates, and in some plants such as potatoes and sunflowers. During exon recombination, exons from the same or different genes recombine and produce new exon-intron combinations, which might evolve into new genes.
Exon shuffling follows “splice frame rules.” Each exon has three reading...
Exon shuffling follows “splice frame rules.” Each exon has three reading...
01:24Regulation of Angiogenesis and Blood Supply
Rapidly dividing tumors, embryos, and wounded tissues require more oxygen than usual, lowering the oxygen concentration in the blood. At low oxygen or hypoxic conditions, an oxygen-sensitive transcription factor called the hypoxia-inducible factor 1 or HIF1 is activated. HIF1 is a dimeric protein of alpha (ɑ) and beta (β) subunits. Under optimal oxygen conditions, HIF1β is present in the nucleus while HIF1ɑ remains in the cytosol. HIF1ɑ is hydroxylated by prolyl hydroxylase and factor...