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一种HGF-VEGF介导的内皮细胞增殖和血管透性的机械计算模型

Rebeca Hannah de Melo Oliveira¹, Akash Patil¹, Brian H Annex²

¹Department of Biomedical Engineering, School of Medicine, Johns Hopkins University, Baltimore, MD 21205, USA.

|August 18, 2025

概括

肝细胞生长因子 (HGF) 和血管内皮生长因子 (VEGF) 不同调节血管透性和增殖. 一个计算模型显示,VEGF可以阻碍HGF的血管稳定作用,为血管生成依赖的疾病提供了洞察力.

科学领域:

分子生物学分子生物学
计算生物学计算生物学
生物医学工程生物医学工程

背景情况:

肝细胞生长因子 (HGF) 和血管内皮生长因子 (VEGF) 是关键的亲血管性因素,与各种疾病有关.
尽管它们有共同的信号通路,但它们在血管透性中的独特作用需要进一步阐明.
了解这些机制对于开发针对血管生成依赖性疾病的向疗法至关重要.

研究的目的:

开发和验证一个数据驱动的计算模型,模拟内皮细胞 (EC) 中的HGF和VEGF信号传递.
研究HGF和VEGF对血管透性和扩散的差异影响的机制基础.
探索计算建模在分析血管生成依赖疾病中的潜力.

主要方法:

在EC中开发,校准和验证HGF和VEGF信号通路的机械计算模型.
包括RAC1-PAK1的特定位点酸化作为血管透性的潜在调节者.
引入透性和扩散指数来量化模拟的细胞反应.

主要成果:

模拟显示了VEGF对高基因引发的血管稳定性的剂量依赖的抑制作用.
HGF被证明可以影响VEGFR2激活的透性和增殖.
该模型成功地复制了HGF和VEGF对EC透性和扩散的不同影响.

结论:

开发的计算模型为HGF和VEGF在血管生成中的复杂相互作用提供了宝贵的见解.
研究结果表明,VEGF可以抵消高酸的稳定性影响,突出了关键的监管机制.
该模型可以作为评估血管新生相关疾病治疗策略的潜在工具.

关键词:

生物约束生物约束系统生物学中的实验模型在 silico 生物学.细胞生物学的整合性方面

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