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Updated: Jun 1, 2025

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解开双骨动脉损伤的分子复杂性:比较蛋白质组学的教训

Bárbara Pozo-Vilumbrales¹, Laura Martín-Chaves², Miguel A López-Unzu³

¹Department of Animal Biology, Faculty of Science, University of Málaga, Málaga, Spain; Biomedical Research Institute of Málaga and Platform on Nanomedicine (IBIMA-Plataforma BIONAND), Málaga, Spain.

Biochimica et biophysica acta. Molecular basis of disease

|January 20, 2025

概括

这项研究揭示了像PI3K/AKT这样的关键分子途径,涉及双主动脉损伤,确定了27个胸前主动脉扩张 (TAD) 的新生物标志物. 这些发现有助于更好地了解双主动脉 (BAV) 疾病机制.

科学领域:

心血管生物学心血管生物学
分子病理学分子病理学
蛋白质组学是指蛋白质组学.

背景情况:

双大动脉损伤 (BAV) 和胸大动脉扩张 (TAD) 的分子基础仍然不清楚.
了解这些机制对于识别预测生物标志物和治疗点至关重要.

研究的目的:

研究BAV相关TAD背后的分子和细胞机制.
通过同位素仓鼠模型识别BAV相关TAD的潜在预测分子标记物.

主要方法:

在具有三 (TAV) 和双主动脉 (BAV) 的同源性仓鼠模型中进行了比较量的蛋白质组学和西部斑分析.
来自T菌株和对照菌株的TAV和BAV仓鼠上升大动脉的形态分子分析.
疾病病因学中的遗传和血液动力学因素之间的歧视.

主要成果:

PI3K/AKT通路的过度激活是BAV主动脉动病的主要分子变化,由EGF,ANGII和TGF-β通路驱动.
观察到对eNOS,MAP2K1/2,NF-κB,mTOR和WNT通路的下游影响,与患者数据相关.
在TAV仓鼠中发现了WNT通路的下调,这表明了不同的遗传贡献.

结论:

一组常见的相互连接的分子通路缺陷,以PI3K/AKT为中心,将患者和仓鼠的BAV相关的TAD联系起来.
这些缺陷促进了平滑肌肉细胞的转变,内皮细胞转变为介质细胞,氧化应激和炎症.
WNT信号可能会导致大动脉异常,而血液动力学可能会引发分子变化和疾病进展,已确定27种新生物标志物.

关键词:

双主动脉门的双主动脉门生物标志物生物标志物在PI3K/AKT中使用.平滑肌肉细胞的表型转移变化胸前大动脉扩张

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