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Flow Cytometry and Single-Cell Analysis for Characterizing Microglia Activation in Early Postnatal Mouse Brain Development
Published on: October 3, 2025
804
Postnatal Development of Microglia-Like Cells in Mouse Cochlea
Penghui Chen1,2,3, Yongchuan Chai1,2,3, Haijin Liu4
1Department of Otorhinolaryngology-Head and Neck Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
Neural Plasticity
|August 30, 2018
Summary
Microglial-like cells (MLCs) in the developing mouse cochlea change in number, distribution, and form. These dynamic changes suggest MLCs are crucial for cochlear maturation and remodeling.
Area of Science:
- Neuroscience
- Developmental Biology
- Otolaryngology
Background:
- Microglial cells are key for central nervous system maintenance.
- Microglial-like cells (MLCs) have been identified in the adult cochlea, with roles in inflammation.
- The presence and function of MLCs during cochlear development are largely unknown.
Purpose of the Study:
- To investigate the presence, distribution, and morphology of MLCs in the developing mouse cochlea.
- To understand the dynamic changes of MLCs during postnatal cochlear development.
Main Methods:
- Immunostaining using the MLC-specific marker IBA1.
- Characterization of MLCs in the developing mouse cochlea from postnatal day 0 (P0) to P14.
- Analysis of MLC distribution, number, and morphology across different cochlear regions.
Main Results:
- MLCs are present in various cochlear regions (modiolus, spiral lamina, spiral ganglion, spiral ligament, organ of Corti) from P0 to P14.
- MLC numbers increase from P0, peak at P5, and then decrease by P14.
- MLC distribution shifts within the spiral ligament, and their morphology changes from activated (amoeboid) to quiescent (ramified) forms.
Conclusions:
- MLCs undergo significant morphological and distributional changes during postnatal cochlear development.
- These dynamic changes suggest MLCs play a role in cochlear maturation and remodeling.
- Further research is needed to elucidate the precise functions of MLCs in cochlear development.
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