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一个数据驱动的计算模型,用于工程心脏微组织.

Javiera Jilberto1, Samuel J DePalma1, Jason Lo1

  • 1Department of Biomedical Engineering, University of Michigan, MI, USA.

Acta biomaterialia
|October 25, 2023
PubMed
概括
此摘要是机器生成的。

工程心脏组织 (EHT) 的计算模型揭示了机械力如何影响心肌细胞成熟. 这项研究增强了我们对EHT机械生物学的理解,以改善心脏组织工程.

关键词:
心脏生物力学心脏生物力学计算建模计算建模工程造型的心脏组织机械生物学 机械生物学

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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
  • 计算生物学 计算生物学

背景情况:

  • 工程心脏组织 (EHTs) 对心脏病治疗有希望,但实现成熟的,像成年人的心脏组织是具有挑战性的.
  • 机械刺激改善了EHT功能和心肌细胞 (CM) 成熟,但根本的机械生物学尚未完全理解.

研究的目的:

  • 使用实验数据开发用于EHTs的组织特定计算建模管道.
  • 研究机械环境对EHT功能和CM成熟的影响.

主要方法:

  • 从机械调节的设置中利用实验数据创建基于图像的EHT计算模型.
  • 纳入ECM和肌纤维细胞结构,并根据实验数据估计的功能参数.
  • 估计的CM活性应力和肌纤维细胞和ECM对组织力输出的剖析贡献.

主要成果:

  • 实验力中的显著差异是由CMs在不同机械环境中的肌纤维细胞形成的不同水平解释的.
  • 与整体组织力相比,CMs中的活跃应力显示出更温和的变化.
  • 该模型成功地剖析了肌纤维素和ECM对组织力量产生的相对贡献.

结论:

  • 组织特定的计算建模对于增强EHT实验和提供对EHT机械生物学更深入的见解至关重要.
  • 结合in-silico和in-vitro方法,可以更好地了解驱动EHT发展和功能的生物机械机制.