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Time-Lapse Imaging of Glial-Axonal Interactions
Kalliopi Ioannidou1,2, Julia M Edgar3,2, Susan C Barnett3
1Clinical Tumor Biology & Immunotherapy Group, Ludwig Centre for Cancer Research, Department of Oncology, University Hospital of Lausanne, Lausanne, Switzerland.
Current Protocols in Neuroscience
|July 2, 2015
Summary
This study details methods for visualizing oligodendrocyte precursor cell (OPC) interactions with axons in the central nervous system (CNS). These techniques enable time-lapse imaging of dynamic cellular processes for myelin formation research.
Area of Science:
- Neuroscience
- Cell Biology
- Developmental Biology
Background:
- Myelin in the central nervous system (CNS) is formed by oligodendrocytes, which originate from oligodendrocyte precursor cells (OPCs).
- Understanding OPC differentiation and axon interactions is crucial for studying CNS development and repair.
- Existing methods for observing these dynamic processes are limited.
Purpose of the Study:
- To describe a protocol for generating in vitro and ex vivo systems for time-lapse imaging of OPC-axon interactions.
- To enable detailed visualization of OPC differentiation and dynamic cellular behaviors.
- To facilitate research into the mechanisms of myelination and CNS development.
Main Methods:
- Utilizing mixed neural cell cultures for in vitro studies.
- Employing intact spinal cord explants for ex vivo investigations.
- Implementing cell-type-specific markers or green fluorescent protein (GFP) tags for OPC identification.
- Employing fluorescent and 2-photon microscopy for time-lapse imaging.
Main Results:
- Successful generation of two distinct experimental systems for observing OPC-axon dynamics.
- Demonstration of time-lapse imaging capabilities for dynamic cellular interactions.
- Visualization of OPC differentiation and interaction stages with axons.
Conclusions:
- The described protocol provides robust methodologies for studying OPC behavior in the CNS.
- These imaging techniques offer new avenues for investigating myelination and neurological disorders.
- The systems are valuable tools for advancing our understanding of oligodendrocyte development and function.
