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Evaluation of Cancer Stem Cell Migration Using Compartmentalizing Microfluidic Devices and Live Cell Imaging

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Published on: December 23, 2011

Biological soliton in multicellular movement.

Hidekazu Kuwayama¹, Shuji Ishida

¹Faculty of Life and Environmental Sciences, University of Tsukuba, Tsukuba, Tennodai, 1-1-1, Ibaraki 305-8572, Japan. hidekuwayama@biol.tsukuba.ac.jp

Scientific Reports

|July 30, 2013

Summary

Biological solitons, or soliton-like structures (SLS), were observed in the mass cell movement of Dictyostelium discoideum mutants. These structures form due to cell-cell adhesion, offering new insights into multicellular biological movement.

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Area of Science:

* Cellular and Molecular Biology
* Biophysics
* Developmental Biology

Background:

* Solitary waves, known as solitons, are prevalent in diverse physical systems.
* Cellular slime mould Dictyostelium discoideum typically aggregates and differentiates during starvation to form a fruiting body.
* Non-chemotactic mutants of D. discoideum fail to form organized multicellular structures.

Purpose of the Study:

* To investigate the presence and characteristics of soliton-like structures (SLS) in non-chemotactic Dictyostelium discoideum mutants.
* To elucidate the underlying mechanisms driving the formation of these biological solitons.

Main Methods:

* Observation and characterization of cell movement in non-chemotactic D. discoideum mutants under starvation conditions.
* Analysis of the role of cell-cell adhesive interactions in the induction of soliton-like structures.

Main Results:

* Non-chemotactic D. discoideum mutants exhibit mass cell movement forming pulsatile soliton-like structures (SLS).
* The induction and formation of these SLS are significantly mediated by adhesive cell-cell interactions.
* These findings demonstrate soliton characteristics in biological multicellular movement.

Conclusions:

* Soliton-like structures represent a novel mode of collective cell migration in non-chemotactic Dictyostelium discoideum mutants.
* Adhesive cell-cell interactions are crucial for the generation of biological solitons in this system.
* The study provides new perspectives on the biophysical mechanisms governing multicellular dynamics and biological pattern formation.