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Preparation and Immunostaining of Myelinating Organotypic Cerebellar Slice Cultures
Published on: March 20, 2019
Tcf7l2 is tightly controlled during myelin formation
Hui Fu1, Santosh Kesari, Jun Cai
1Department of Physiology, Basic Medical College of Nanchang University, Nanchang, Jiangxi, China. hueyfu@yahoo.com
Cellular and Molecular Neurobiology
|December 14, 2011
Summary
Transcription factor Tcf7l2 is crucial for myelin repair. Its protein expression is tightly regulated during oligodendrocyte development and remyelination in both mouse models and human patients.
Area of Science:
- Neuroscience
- Molecular Biology
- Developmental Biology
Background:
- Tcf7l2 is a key transcription factor in the Wnt pathway.
- Tcf7l2 plays critical roles in oligodendrocyte development and myelin formation.
Purpose of the Study:
- To investigate the regulation of Tcf7l2 during myelin formation and remyelination.
- To elucidate the role of Tcf7l2 in oligodendrocyte precursor cells during myelin repair.
Main Methods:
- Analysis of Tcf7l2 mRNA and protein expression during early development in mice.
- Induction of demyelination and subsequent remyelination in a mouse model.
- Examination of Tcf7l2 expression in human patients with demyelination diseases.
- Investigation of Tcf7l2 protein interactions with Olig1 and Olig2.
Main Results:
- Tcf7l2 mRNA precedes protein expression, indicating translational regulation.
- Tcf7l2 protein is specifically expressed during active remyelination phases in mice and humans.
- Tcf7l2 is found in non-dividing oligodendrocyte precursors and interacts with Olig2, not Olig1.
- Tcf7l2/beta-catenin regulation is temporal, spatial, and expression-level controlled during myelin formation.
Conclusions:
- Tcf7l2 plays a pivotal role in myelination and remyelination.
- Tcf7l2 acts via tightly controlled activation of the Wnt/beta-catenin pathway.
- Tcf7l2's interaction with Olig2 is essential for its function in myelin repair.
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