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Updated: May 27, 2025

A Micropatterning Assay for Measuring Cell Chirality
Published on: March 11, 2022
Homochirality in the Vicsek model: Fluctuations and potential implications for cellular flocks.
Ludwig A Hoffmann1, Luca Giomi2
1Harvard University, Instituut-Lorentz, Universiteit Leiden, P. O. Box 9506, 2300 RA Leiden, The Netherlands and John A. Paulson School of Engineering and Applied Sciences, Cambridge, Massachusetts 02138, USA.
This study models how cells could develop homochirality, a state where only one chiral form exists. System openness and noise influence the transition to this chiral state in biological systems.
Area of Science:
- Biological Physics
- Systems Biology
- Biophysics
Background:
- Chirality is fundamental in biology, with natural sugars and amino acids exhibiting homochirality.
- Cellular chirality and its impact on tissues remain poorly understood, representing an active research area.
Purpose of the Study:
- To develop a simple model for the origin of homochirality in cells.
- To investigate the evolution of cellular homochirality from symmetric states without explicit symmetry-breaking mechanisms.
Main Methods:
- Combined the Vicsek model for collective behavior with Jafarpour et al.'s model for molecular homochirality.
- Investigated the transition to homochirality in a simulated cellular system.
Main Results:
- Demonstrated a potential pathway for the emergence of cellular homochirality.
- Identified system openness and noise as critical factors determining the achievement of a globally homochiral state.
Conclusions:
- The model provides a hypothetical framework for understanding cellular homochirality.
- Suggests that collective behavior and environmental factors can drive homochirality in multicellular systems.
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