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Differentiation of Embryonic Stem Cells into Oligodendrocyte Precursors
Published on: May 19, 2010
Functional identification of neural stem cell-derived oligodendrocytes
Sofia Grade1, Fabienne Agasse, Liliana Bernardino
1Neuroprotection and Neurogenesis in Brain Repair Group, Center for Neuroscience and Cell Biology, University of Coimbra, Coimbra, Portugal.
Methods in Molecular Biology (Clifton, N.J.)
|May 22, 2012
Summary
This study introduces a new calcium imaging method to rapidly identify neural stem cell progeny in living cultures. This technique aids in developing cell therapies for demyelinating diseases like multiple sclerosis.
Area of Science:
- Neuroscience
- Cell Biology
- Regenerative Medicine
Background:
- Cell replacement therapies for demyelinating diseases require directing neural stem cell (NSC) differentiation.
- Current methods for evaluating NSC differentiation (immunocytochemistry, Western blot) use fixed cells or lysates.
- Electrophysiology allows live-cell studies but is time-consuming and limited for population analysis.
Purpose of the Study:
- To develop a rapid and accurate functional method for distinguishing NSC progeny phenotypes in living cultures.
- To identify mature oligodendrocytes within heterogeneous subventricular zone (SVZ) cell populations.
- To provide a tool for screening pro-oligodendrogenic compounds for treating demyelinating disorders.
Main Methods:
- Single-cell calcium imaging of living NSC cultures derived from the postnatal mouse SVZ.
- Application of a sequential stimulation protocol: KCl, histamine, and thrombin.
- Analysis of unique intracellular calcium signatures to identify distinct cell phenotypes.
Main Results:
- A novel calcium imaging method accurately and rapidly distinguishes NSC progeny.
- Mature oligodendrocytes were identified as thrombin-responsive cells with no calcium response to KCl or histamine.
- Neurons and immature cells showed distinct calcium responses to KCl and histamine, respectively.
Conclusions:
- Single-cell calcium imaging provides a valuable functional assay for NSC differentiation.
- This method enables rapid identification of mature oligodendrocytes in living SVZ cultures.
- The technique can accelerate the discovery of therapeutic compounds for demyelinating diseases like multiple sclerosis.
