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Transmission Electron Microscopy as the Visualization Technique for Analysis of Circadian Synaptic Plasticity in the Mouse Barrel Cortex
Published on: August 19, 2025
726
Circadian Clocks: Structural Plasticity on the Input Side.
François Rouyer1, Abhishek Chatterjee1
1Institut des Neurosciences Paris-Saclay, Université Paris-Sud, Université Paris-Saclay, CNRS, 91190 Gif-sur-Yvette, France.
Current Biology : CB
|August 5, 2020
Summary
Fruit fly brain cells that control daily rhythms change their structure daily. This daily remodeling is crucial for processing sensory information, not just controlling the fly's internal clock output.
Area of Science:
- Neuroscience
- Chronobiology
- Cell Biology
Background:
- Daily structural changes in Drosophila clock neurons are known.
- These changes were previously thought to primarily regulate clock neuron output.
Purpose of the Study:
- To investigate the function of daily axonal remodeling in Drosophila clock neurons.
- To determine if this remodeling impacts sensory input modulation.
Main Methods:
- Utilized advanced imaging techniques in Drosophila melanogaster.
- Observed axonal arborization dynamics of clock neurons over a 24-hour cycle.
Main Results:
- Confirmed daily remodeling of axonal arborization in key Drosophila clock neurons.
- New data indicate this remodeling plays a significant role in modulating sensory inputs.
Conclusions:
- Axonal remodeling in Drosophila clock neurons is essential for sensory processing.
- The function of daily remodeling extends beyond controlling clock output.
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