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Tumor progression is a phenomenon where the pre-formed tumor acquires successive mutations to become clinically more aggressive and malignant. In the 1950s, Foulds first described the stepwise progression of cancer cells through successive stages.
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Tumor proliferation and diffusion on percolation clusters.

Chongming Jiang1,2, Chunyan Cui3, Weirong Zhong4

  • 1School of Physics, Sun Yat-sen University, Guangzhou, 510275, China.

Journal of Biological Physics
|September 29, 2016
PubMed
Summary
This summary is machine-generated.

Tumor cell invasion and spread are significantly influenced by the surrounding tissue

Keywords:
InhomogeneityInvasive and metastatic diffusionPercolationReaction–diffusion systemsTumor

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Area of Science:

  • Computational Biology
  • Biophysics
  • Cancer Research

Background:

  • Tumor growth and metastasis depend on the tumor microenvironment.
  • Tissue inhomogeneity is a key factor influencing tumor cell behavior.
  • Percolation theory provides a framework for studying complex systems like tumor spread.

Purpose of the Study:

  • To investigate the in silico influence of host tissue inhomogeneity on tumor cell proliferation and diffusion.
  • To characterize tumor mobility and invasion dynamics within varying tissue structures.
  • To explore the relationship between tissue homogeneity and tumor invasion velocity.

Main Methods:

  • Simulations of tumor cell mobility on percolation clusters with varying tissue homogeneities.
  • Application of percolation theory to model tumor proliferation and diffusion.
  • Analysis of tumor cell movement patterns, including pressure variation and invasion pathways.

Main Results:

  • Identified critical transitions in tumor cell survival and diffusion.
  • Observed specific invasion sites and facilitating 'tunnels' on percolation clusters.
  • Demonstrated a positive correlation between tissue homogeneity and tumor diffusion/invasion rates.

Conclusions:

  • Tumor invasion is controlled by the homogeneity of the tumor microenvironment.
  • Tissue inhomogeneity critically influences tumor cell proliferation, diffusion, and metastatic potential.
  • Simulation findings align with experimental data and clinical observations.