GLI1+细胞有助于在肺高血压中血管重塑
Xuran Chu1,2,3, Vahid Kheirollahi3, Arun Lingampally3,4
1Oujiang Laboratory (Zhejiang Lab for Regenerative Medicine, Vision and Brain Health) (X.C., S.B.), Wenzhou Medical University, China.
Circulation research
|April 19, 2024
概括
质瘤相关的瘤基因同源1 (GLI1+) 细胞对肺高血压中的血管重塑有显著的贡献. 这些细胞为治疗这种疾病提供了潜在的治疗点.
科学领域:
- 心血管研究研究心血管研究
- 细胞生物学 细胞生物学
- 肺高血压是什么意思 肺高血压
背景情况:
- 在肺高血压期间,在非肌肉化的肺血管中,新的阿尔法光滑肌肉活性阳性 (ACTA2+) 细胞的细胞起源受到争论.
- 现有的研究表明,主要来源于先前存在的血管光滑肌细胞 (VSMC).
研究的目的:
- 研究质瘤相关的瘤基因同源1 (GLI1+) 细胞对肺高血压中新肌肉化的贡献.
- 探索GLI1+细胞及其相关信号通路在血管改造中的作用.
主要方法:
- 在Gli1+;td番茄小鼠的血统追踪使用低氧和烟雾模型的肺高血压.
- 血液动力学测量,右心室缩评估,流细胞计和3D组织学重建.
- 分类GLI1+细胞的单细胞RNA测序和人类肺高血压样本的分析.
主要成果:
- 在通常非肌肉化的肺血管中,GLI1+细胞是新ACTA2+细胞的重要来源 (~50%).
- 作为对低氧反应的反应,GLI1+细胞系有助于血管重塑和右心脏缩.
- 在人类肺高血压中,GLI1信号过度激活,促进细胞增殖和肌性分化.
结论:
- GLI1+细胞代表了肺高血压中VSMCs的替代细胞来源.
- 准GLI1+细胞及其信号通路可能为肺高血压提供一种新的治疗策略.
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