NLRP3-GSDMD轴对PDGF-BB诱导的血管光滑肌细胞表型转变的贡献
Yun-Ting Wang1, Alexandra K Moura1, Rui Zuo1
1Department of Pharmacological and Pharmaceutical Sciences, College of Pharmacy, University of Houston, Houston, Texas, United States.
American journal of physiology. Cell physiology
|July 21, 2025
概括
NLRP3-GSDMD炎症酶途径驱动血管光滑肌肉细胞的变化和炎症,导致内脏增生. 抑制这种途径可能为心血管疾病提供新的治疗方法.
科学领域:
- 心血管生物学 心血管生物学
- 炎症研究 炎症研究
- 细胞信号传输 细胞信号传输
背景情况:
- 内体增生症是心血管疾病的关键特征,如静脉缩,涉及血管光滑肌细胞 (VSMC) 现型过渡.
- 类似NOD的受体pyrin域3 (NLRP3) 炎症体及其效应体gasdermin D (GSDMD) 都与炎症过程有关.
研究的目的:
- 调查NLRP3-GSDMD轴在VSMC表型转变和内增生症发展中的作用.
- 探索针对心血管疾病中的NLRP3-GSDMD途径的治疗潜力.
主要方法:
- 主要培养的VSMC被PDGF-BB刺激,以评估NLRP3-GSDMD的激活,增殖,迁移和炎症.
- 药理抑制 (caspase-1 抑制剂 YVAD) 和遗传沉默 (Gsdmd 基因) 用于评估途径的参与.
- 在体内使用动脉结合在高胆固醇贫血野生类型 (Nlrp3+/+) 和淘汰赛 (Nlrp3-/-) 小鼠中的内极性增生模型.
主要成果:
- 在VSMC中,PDGF-BB激活了NLRP3-GSDMD轴,促进炎症,增殖和迁移.
- 抑制或静止NLRP3或GSDMD减弱的PDGF-BB诱导的VSMC反应.
- 与Nlrp3+/+小鼠相比,Nlrp3-/-小鼠的血管损伤显著降低了炎症酶/GSDMD激活,炎,炎症和内膜增生.
结论:
- NLRP3-GSDMD轴是VSMC表型过渡和炎症的关键调节者,导致内增生.
- 针对NLRP3-GSDMD途径,为与内密增生相关的心血管疾病提供了一个有希望的治疗策略.
- 这项研究确定NLRP3-GSDMD信号作为病理性血管改造的新型驱动因素.
更多相关视频
08:28Isolation of Primary Patient-specific Aortic Smooth Muscle Cells and Semiquantitative Real-time Contraction Measurements In Vitro
Published on: February 15, 2022
3.8K
11:38Visualization and Quantification of TGFβ/BMP/SMAD Signaling under Different Fluid Shear Stress Conditions using Proximity-Ligation-Assay
Published on: September 14, 2021
3.5K
相关概念视频
TGF - β Signaling Pathway
7.7K
The TGF-β signaling pathway regulates cell growth, differentiation, adhesion, motility, and development. TGF-β ligands that induce TGF-β signaling are synthesized in their latent form. Several proteases or cell surface receptors such as integrins act upon the latent form, releasing the active ligand. There are three types of mammalian TGF-βs: (TGF-β1, TGF-β2, and TGF-β3) that bind as homodimers or heterodimers to TGF-β receptors. The TGF-β receptors...
7.7K
Cell Polarization by Rho Proteins
2.8K
Cell polarity is the asymmetric distribution of cellular and membrane components, making one side of the cell different from the other. This polarity is essential to many processes such as embryogenesis, axon migration, glucose transport across epithelial cells, and directional cell migration. A migrating cell responds to intracellular or extracellular signals via molecular cascades that reorganize the actin cytoskeleton to establish this polarity. In these cells, the Rho family proteins Cdc42,...
2.8K
