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arXiv 2302.09445q-bio.CB
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癌症细胞伤口愈合实验中描述迁移与增殖机制的弱形式偏微分方程推断

Inference of weak-form partial differential equations describing migration and proliferation mechanisms in wound healing experiments on cancer cells

Patrick C. Kinnunen, Siddhartha Srivastava, Zhenlin Wang, Kenneth K. Y. Ho, Brock A. Humphries, Siyi Chen, Jennifer J. Linderman, Gary D. Luker, Kathryn E. Luke… 展开作者

Patrick C. Kinnunen, Siddhartha Srivastava, Zhenlin Wang, Kenneth K. Y. Ho, Brock A. Humphries, Siyi Chen, Jennifer J. Linderman, Gary D. Luker, Kathryn E. Luker, Krishna Garikipati

AI总结:

本文结合高通量划痕实验、视频显微镜和弱形式系统辨识推断癌细胞迁移与增殖的偏微分方程模型,并发现低浓度曲美替尼主要通过降低约20%的随机细胞迁移抑制伤口闭合。

摘要:

靶向驱动癌细胞迁移或增殖的信号通路是一种常见的治疗策略。划痕实验是一种常用的实验技术,用于测量由迁移和增殖驱动的融合细胞单层中缺损的闭合情况,但这些实验无法测量动态效应。为了改进划痕实验的分析,我们将高通量划痕实验、视频显微镜和系统辨识相结合,以推断细胞迁移和增殖的偏微分方程(PDE)模型。我们利用活细胞显微镜和自动化图像处理捕捉细胞密度场随时间的演化。我们采用基于弱形式的系统辨识技术,对以一阶动力学描述的对流-扩散-反应系统的细胞密度动态进行建模。我们将我们的方法与在先前分析的一维划痕实验数据上使用传统推断方法得到的结果进行了比较。我们展示了该流程在高通量二维划痕实验中的应用,并发现低浓度的曲美替尼主要通过将随机细胞迁移降低约20%来抑制伤口闭合。我们的集成实验与计算流程可适用于定量推断生物扰动对不同细胞系中细胞迁移和增殖的影响。

英文摘要:

Targeting signaling pathways that drive cancer cell migration or proliferation is a common therapeutic approach. A popular experimental technique, the scratch assay, measures the migration and proliferation-driven cell closure of a defect in a confluent cell monolayer. These assays do not measure dynamic effects. To improve analysis of scratch assays, we combine high-throughput scratch assays, video microscopy, and system identification to infer partial differential equation (PDE) models of cell migration and proliferation. We capture the evolution of cell density fields over time using live cell microscopy and automated image processing. We employ weak form-based system identification techniques for cell density dynamics modeled with first-order kinetics of advection-diffusion-reaction systems. We present a comparison of our methods to results obtained using traditional inference approaches on previously analyzed 1-dimensional scratch assay data. We demonstrate the application of this pipeline on high throughput 2-dimensional scratch assays and find that low levels of trametinib inhibit wound closure primarily by decreasing random cell migration by approximately 20%. Our integrated experimental and computational pipeline can be adapted for quantitatively inferring the effect of biological perturbations on cell migration and proliferation in various cell lines.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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