Related Experiment Video
Updated: Dec 22, 2025
11:52
An Isolated Semi-intact Preparation of the Mouse Vestibular Sensory Epithelium for Electrophysiology and High-resolution Two-photon Microscopy
Published on: June 13, 2013
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Calbindin expression in adult vestibular epithelia
Terry J Prins1,2, Zachary A Myers1, Johnny J Saldate1
1Department of Head and Neck Surgery, David Geffen School of Medicine at UCLA, Box 951624, Los Angeles, CA, 90095-1624, USA.
Summary
Planar cell polarity (PCP) influences vestibular epithelia organization. Calbindin expression patterns suggest PCP and other factors regulate neuroepithelial structure, with calbindin colocalizing with calretinin in specific zones.
Area of Science:
- Neuroscience
- Cell Biology
- Otolaryngology
Background:
- Mammalian vestibular epithelia display stereotyped organization controlled by planar cell polarity (PCP).
- PCP mechanisms govern hair cell polarization and calretinin expression, defining key vestibular zones.
- Oncomodulin expression variations suggest heterogeneous factors influence vestibular organization.
Purpose of the Study:
- To investigate the topographic expression pattern of the calcium-binding protein calbindin.
- To determine the extent to which PCP mechanisms control vestibular neuroepithelial organization.
- To compare calbindin expression with oncomodulin and calretinin.
Main Methods:
- Immunohistochemical analysis of calbindin expression in mammalian vestibular epithelia.
- Comparative analysis of calbindin topographic patterns with oncomodulin and calretinin.
- Confocal microscopy to assess colocalization of proteins.
Main Results:
- Calbindin exhibited an expression pattern highly similar to oncomodulin.
- Calbindin was colocalized with calretinin within the calyces of the central zone.
- These findings highlight complex regulatory mechanisms in vestibular epithelia.
Conclusions:
- Vestibular neuroepithelial organization is influenced by PCP mechanisms.
- Additional, yet undefined, factors also contribute to vestibular epithelia organization.
- Calbindin's expression pattern provides insights into the multifaceted regulation of vestibular structure.
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