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3D收缩和重塑行为功能正常和缩的人类中枢间歇性细胞

Toni M West¹, Gabriel Peery¹, Sanjana S Chemuturi¹

¹James T. Willerson Center for Cardiovascular Modeling and Simulation, Oden Institute for Computational Engineering and Sciences, The University of Texas at Austin, Austin, TX 78712, USA.

bioRxiv : the preprint server for biology

|November 24, 2025

概括

mitra 门脱落 (MVP) 改变了人类的 mitra 门间歇细胞 (hMVICs). MVP hMVICs重塑细胞外基质,并改变收缩能力不同于正常细胞,影响MVP病理.

科学领域:

生物医学工程生物医学工程
心血管研究研究心血管研究
细胞力学细胞力学

背景情况:

密特拉脱落 (MVP) 是一种严重的心血管疾病,治疗选择有限.
了解MVP的细胞机制对于开发新疗法至关重要.
人类中膜间歇细胞 (hMVICs) 在膜结构和功能中起着关键作用.

研究的目的:

研究MVP对hMVIC细胞外基质 (ECM) 重塑和收缩性的影响.
将MVP患者的hMVIC行为与健康个体的hMVIC行为进行比较.

主要方法:

从MVP患者和正常对照中分离和培养hMVICs.
嵌入hMVICs在聚乙烯基醇基水凝中.
使用3D引力显微镜和反向建模来分析ECM变化和细胞收缩性.

主要成果:

与正常的hMVIC相比,MVP hMVICs诱导了较大的水凝硬化和较少的降解,这表明ECM重塑发生了改变.
在hMVIC附近观察到原沉积,有助于水凝硬化.
尽管基底收缩位移较高,但MVP hMVIC 具有较低的引力和水凝应变能量密度.

结论:

MVP显著改变了hMVICs的生物物理特性和ECM重塑行为.
在MVP hMVIC中发生的这些细胞变化为对 mitra prolapse病理过程提供了新的见解.
这些发现突出了针对hMVIC行为在未来MVP疗法中的潜力.

关键词:

3D拉力力显微镜 3D拉力力显微镜细胞外矩阵重塑细胞外矩阵重塑反向建模的反向建模 mitra 膜间歇细胞间歇细胞 mitrale 门的发生

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