Healing Regimes for Microscopic Wounds in the Vertex Model of Cell Tissues

Fuente: arXiv
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Hauptverfasser: Almada, R. F., Araujo, N. A. M., Patricio, P.
Format: Preprint
Veröffentlicht: 2024
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author Almada, R. F.
Araujo, N. A. M.
Patricio, P.
author_facet Almada, R. F.
Araujo, N. A. M.
Patricio, P.
contents Wounds in epithelial tissues compromise their vital role in homeostasis. A rapid and efficient wound healing encompasses different mechanisms, which includes the formation of a contractile actin-myosin cable around its edge, known as the purse-string mechanism. We combine mean-field calculations and numerical simulations of the Vertex model to study the interplay between tissue properties and the purse-string mechanism and its impact on the healing process. We find different regimes, where the wound opens, closes partially or completely. We also derive an analytic expression for the closure time which is validated by numerical simulations. This study establishes under which conditions the purse-string mechanism suffices for closure, providing an analytical mean-field expression for the respective thresholds.
format Preprint
id arxiv_https___arxiv_org_abs_2403_14501
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Healing Regimes for Microscopic Wounds in the Vertex Model of Cell Tissues
Almada, R. F.
Araujo, N. A. M.
Patricio, P.
Soft Condensed Matter
Statistical Mechanics
Cell Behavior
Wounds in epithelial tissues compromise their vital role in homeostasis. A rapid and efficient wound healing encompasses different mechanisms, which includes the formation of a contractile actin-myosin cable around its edge, known as the purse-string mechanism. We combine mean-field calculations and numerical simulations of the Vertex model to study the interplay between tissue properties and the purse-string mechanism and its impact on the healing process. We find different regimes, where the wound opens, closes partially or completely. We also derive an analytic expression for the closure time which is validated by numerical simulations. This study establishes under which conditions the purse-string mechanism suffices for closure, providing an analytical mean-field expression for the respective thresholds.
title Healing Regimes for Microscopic Wounds in the Vertex Model of Cell Tissues
topic Soft Condensed Matter
Statistical Mechanics
Cell Behavior
url https://arxiv.org/abs/2403.14501