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In this study, we model avascular tumour growth in epithelial tissue. This can help us to get a macroscopic view of the interaction between the tumour with its surrounding microenvironment and the physical changes within the tumour…

组织与器官 · 定量生物学 2019-05-15 Sounak Sadhukhan , S. K. Basu

We study an initial-boundary value problem (IBVP) for a coupled Cahn-Hilliard-Hele-Shaw system that models tumor growth. For large initial data with finite energy, we prove global (local resp.) existence, uniqueness, higher order spatial…

偏微分方程分析 · 数学 2012-05-31 John Lowengrub , Edriss S. Titi , Kun Zhao

Tissue growth underpins a wide array of biological and developmental processes, and numerical modeling of growing systems has been shown to be a useful tool for understanding these processes. However, the phenomena that can be captured are…

软凝聚态物质 · 物理学 2023-11-08 Andrew Killeen , Benjamin Partridge , Thibault Bertrand , Chiu Fan Lee

It is widely recognized that reciprocal interactions between cells and their microenvironment, via mechanical forces and biochemical signaling pathways, regulate cell behaviors during normal development, homeostasis and disease progression…

生物物理 · 物理学 2024-12-05 Nonthakorn Olaranont , Chaozhen Wei , John Lowengrub , Min Wu

The work presents a study of the non-linear mathematical model of tumor growth, proposed by Kolev and Zubik-Kowal (2011). The model is described by a system composed of four partial differential equations that represent the evolution of the…

组织与器官 · 定量生物学 2025-06-02 Jesika Maganin , Neyva Maria Lopes Romeiro , Eliandro Rodrigues Cirilo , Paulo Laerte Natti

This study builds upon a model proposed by Joanny and collaborators that examines the dynamics of interfaces between two distinct cell populations, particularly during tumor growth in healthy tissues. This framework leads to the…

偏微分方程分析 · 数学 2024-09-20 Juan Campos , Carlos Pulido , Juan Soler

We study the optimal control problem of a free boundary PDE model describing the growth of multilayered tumor tissue in vitro. We seek the optimal amount of tumor growth inhibitor that simultaneously minimizes the thickness of the tumor…

偏微分方程分析 · 数学 2024-10-21 Xinyue Evelyn Zhao , Yixiang Wu , Rachel Leander , Wandi Ding , Suzanne Lenhart

We propose a strange-attractor model of tumor growth and metastasis. It is a 4-dimensional spatio-temporal cancer model with strong nonlinear couplings. Even the same type of tumor is different in every patient both in size and appearance,…

细胞行为 · 定量生物学 2008-10-28 Tijana T. Ivancevic , Murk J. Bottema , Lakhmi C. Jain

This paper deals with the evolution equation of a curve obtained as the sharp interface limit of a non-linear system of two reaction-diffusion PDEs. This system was introduced as a phase-field model of (crawling) motion of eukaryotic cells…

偏微分方程分析 · 数学 2016-03-23 Matthew S. Mizuhara , Leonid Berlyand , Volodymyr Rybalko , Lei Zhang

We study a distributed optimal control problem for a nonisothermal Caginalp-type phase-field model that describes tumour growth under thermal therapy. The PDE system couples a possibly viscous Cahn-Hilliard equation, governing the evolution…

最优化与控制 · 数学 2026-05-05 Giulia Cavalleri , Pierluigi Colli , Elisabetta Rocca

We present and analyze new multi-species phase-field mathematical models of tumor growth and ECM invasion. The local and nonlocal mathematical models describe the evolution of volume fractions of tumor cells, viable cells (proliferative and…

偏微分方程分析 · 数学 2020-02-20 Marvin Fritz , Ernesto A. B. F. Lima , Vanja Nikolić , J. Tinsley Oden , Barbara Wohlmuth

In this paper, we consider an age-structured mechanical model for tumor growth. This model takes into account the life-cycle of tumor cells by including an age variable. The underlying process for tumor growth is the same as classical tumor…

偏微分方程分析 · 数学 2026-03-05 Maeve Wildes

We develop an existence and regularity theory for solutions to a geometric free boundary problem motivated by models of tumor growth. In this setting, the tumor invades an accessible region $D$, its motion is directed along a constant…

偏微分方程分析 · 数学 2025-07-10 Giulia Bevilacqua , Matteo Carducci

We consider a biphasic continuum model for avascular tumour growth in two spatial dimensions, in which a cell phase and a fluid phase follow conservation of mass and momentum. A limiting nutrient that follows a diffusion process controls…

数值分析 · 数学 2020-10-21 Jerome Droniou , Jennifer A. Flegg , Gopikrishnan C. Remesan

In this article, we present a multispecies reaction-advection-diffusion partial differential equation (PDE) coupled with linear elasticity for modeling tumor growth. The model aims to capture the phenomenological features of glioblastoma…

医学物理 · 物理学 2019-05-28 Shashank Subramanian , Amir Gholami , George Biros

Topology changes in multi-phase fluid flows are difficult to model within a traditional sharp interface theory. Diffuse interface models turn out to be an attractive alternative to model two-phase flows. Based on a…

流体动力学 · 物理学 2017-08-02 Luca Dedè , Harald Garcke , Kei Fong Lam

We propose a two-component reaction-transport model for the migration-proliferation dichotomy in the spreading of tumor cells. By using a continuous time random walk (CTRW) we formulate a system of the balance equations for the cancer cells…

细胞行为 · 定量生物学 2015-06-26 Sergei Fedotov , Alexander Iomin

A phase field model for tumour growth is introduced that is based on a Brinkman law for convective velocity fields. The model couples a convective Cahn-Hilliard equation for the evolution of the tumour to a reaction-diffusion-advection…

偏微分方程分析 · 数学 2021-09-07 Matthias Ebenbeck , Harald Garcke , Robert Nürnberg

In this paper, the authors study the distributed optimal control of a system of three evolutionary equations involving fractional powers of three selfadjoint, monotone, unbounded linear operators having compact resolvents. The system is a…

最优化与控制 · 数学 2019-07-25 Pierluigi Colli , Gianni Gilardi , Jürgen Sprekels

The formation of interface from an initial sharp interface in polydisperse A/B blends is studied using the external potential dynamic method. The present model is a nonlocal coupling model as we take into account the correlation between…

软凝聚态物质 · 物理学 2015-05-13 Shuanhu Qi , Xinghu Zhang , Dadong Yan