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Related Experiment Video

Updated: Apr 17, 2026

Reconstitution of Basic Mitotic Spindles in Spherical Emulsion Droplets

Reconstitution of Basic Mitotic Spindles in Spherical Emulsion Droplets

Published on: August 13, 2016

Dynamic force balances and cell shape changes during cytokinesis.

Anirban Sain¹, Mandar M Inamdar², Frank Jülicher³

¹Physics Department, Indian Institute of Technology-Bombay, Powai, Mumbai 400076, India.

Physical Review Letters

|February 14, 2015

Summary

This summary is machine-generated.

This study models animal cell division, explaining how actomyosin ring contraction drives cell shape changes and cytokinesis furrow formation. The physical model accurately predicts interface closure dynamics in C. elegans embryos.

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Area of Science:

Cell Biology
Biophysics
Developmental Biology

Background:

Animal cell division involves an actomyosin ring in the cell cortex.
Ring contraction causes cell shape changes and cytokinesis furrow formation.
A cell-cell interface often forms, separating daughter cells.

Purpose of the Study:

To present a simple physical model of cell shape changes during division.
To describe the dynamics of cell-cell interface closure.
To investigate conditions for symmetric and asymmetric interface closure.

Main Methods:

Developed a physical description based on force balances.
Incorporated active stresses and viscous friction into the model.
Applied the model to analyze cytokinesis in C. elegans embryos.

Main Results:

The model explains cell shape changes driven by actomyosin ring contraction.
It accurately describes the dynamics of cell-cell interface closure.
The model accounts for both axially symmetric and asymmetric closure scenarios.

Conclusions:

The physical model provides a quantitative understanding of cell division mechanics.
It successfully predicts the observed dynamics of ring contraction and interface closure.
This framework aids in comprehending the biophysical basis of cytokinesis.