arXiv:2608.03927cs.LG2026-08

用物理启发的神经网络自动解析肌组织收缩动力学

A Physics-Flavored Transformer Network for Parametrizing Contraction Dynamics of Engineered Skeletal Muscle Tissues

论文配图:A Physics-Flavored Transformer Network for Parametrizing Contraction Dynamics of Engineered Skeletal Muscle Tissues
图 1 · 摘自论文原文
  • 将拉伸指数物理模型嵌入CNN-Transformer,直接从力-时间曲线提取参数
  • 在多种肌病模型上实现高保真参数化,包括杜氏肌营养不良细胞系
  • 先合成数据练物理直觉,再用真实数据自校准,适合生物力学高通量研究

工程化骨骼肌组织(ESMs)已成为生物医学疾病建模和药理筛选的关键结构,但其功能表征常依赖峰值力等简化指标,忽略了关键的动力学信息。这主要源于机制模型带来的高数学复杂性,阻碍了其规模化应用。本文提出一种物理启发的神经网络(PFNN),可自动化解析ESMs的动力学表型。该架构将拉伸指数物理模型融入CNN-Transformer,直接从力-时间曲线提取具有物理解释意义的参数。针对标注生物数据稀缺问题,采用混合训练范式:模型先在合成数据上学习“物理直觉”,再通过无监督自对齐在未标注的真实测量数据上优化。结果表明,该方法在多种收缩表型和细胞系中均实现高保真参数化,包括杜氏肌营养不良模型。其可扩展、自我优化的流程弥合了理想化生物物理与嘈杂体外数据之间的鸿沟,为高通量生物物理学研究提供可靠工具。

原文摘要 · Abstract (English)

Engineered Skeletal Muscle Tissues (ESMs) have become a key structure for biomedical disease modeling and pharmacological screening, yet their functional characterization often relies on simplistic metrics like peak force, discarding critical kinetic information. This is partially due to the high level of mathematical complexity which mechanistic models introduce to capture these dynamics. Hence, exactly the complexity prevents scalable application and widespread adaptation in the field. Here we present a Physics-Flavored Neural Network (PFNN) that automates the kinetic phenotyping of ESMs. Our architecture integrates a stretched-exponential physical model into a CNN-Transformer, enabling the extraction of physically meaningful parameters directly from force-time profiles. To address the scarcity of labeled biological data, we employ a hybrid training paradigm: the model develops a "physical intuition" on synthetic data before undergoing unsupervised self-alignment on unlabeled real-world measurements. Our results demonstrate that this physics-flavored approach achieves high-fidelity parameterization across diverse contractile phenotypes and cell lines, including Duchenne Muscular Dystrophy models. Our scalable, self-improving pipeline bridges the gap between idealized biophysics and noisy \emph{in vitro} data, providing a robust tool for high-throughput biophysical research.

生物力学神经网络肌组织

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