Nonlinear Sciences – Adaptation and Self-Organizing Systems
Scientific paper
1993-11-25
Nonlinear Sciences
Adaptation and Self-Organizing Systems
submitted to Physica D; figures are not included
Scientific paper
10.1016/0167-2789(94)90277-1
A novel mechanism for cell differentiation is proposed, based on the dynamic clustering in a globally coupled chaotic system. A simple model with metabolic reaction, active transport of chemicals from media, and cell division is found to show three successive stages with the growth of the number of cells; coherent growth, dynamic clustering, and fixed cell differentiation. At the last stage, disparity in activities, germ line segregation, somatic cell differentiation, and homeochaotic stability against external perturbation are found. Our results, in consistency with the experiments of the preceding paper, imply that cell differentiation can occur without a spatial pattern. From dynamical systems viewpoint, the new concept of ``open chaos" is proposed, as a novel and general scenario for systems with growing numbers of elements, also seen in economics and sociology.A
Kaneko Kunihiko
Yomo Tetsuya
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