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Updated: May 10, 2025
07:07
Evaluation of Planar-Cell-Polarity Phenotypes in Ciliopathy Mouse Mutant Cochlea
Published on: February 21, 2016
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Junctional force patterning drives both positional order and planar polarity in the auditory epithelia
Anubhav Prakash1, Julian Weninger2, Nishant Singh1,3
1National Centre for Biological Sciences, Tata Institute for Fundamentals Research, GKVK PO, Bangalore, India.
Nature Communications
|April 25, 2025
Summary
Cellular organization in the cochlea ensures hearing fidelity through precise force patterning. This study reveals how myosin II regulation at cell junctions controls tissue-scale rearrangements for auditory development.
Area of Science:
- Developmental biology
- Cell biology
- Auditory neuroscience
Background:
- Tissue function relies on cellular organization.
- Cochlear hair cell arrangement and planar cell polarity are crucial for hearing.
- Simultaneous emergence of order and cellular flux during development poses a challenge.
Purpose of the Study:
- Investigate the link between tissue-scale cellular rearrangements and intrinsic cellular mechanisms.
- Elucidate the force patterning underlying positional order and planar cell polarity in the cochlea.
Main Methods:
- Combined experimental and theoretical approaches.
- Analysis of non-muscle myosin II levels and phospho-type.
- Examination of cell-cell junctions in the auditory epithelium.
Main Results:
- Identified precise force patterning critical for positional order and planar cell polarity.
- Demonstrated modulation of non-muscle myosin II at specific cell-cell junctions.
- Linked junctional mechanics to the simultaneous emergence of cellular order and development.
Conclusions:
- Control of junctional mechanics is vital for organizing multi-cell-type epithelia.
- Force patterning via myosin II regulation underlies cochlear development and auditory function.
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