The Proteolipid Protein Promoter Drives Expression outside of the Oligodendrocyte Lineage during Embryonic and Early Postnatal Development
Author Information
Author(s): Michalski John-Paul, Anderson Carrie, Beauvais Ariane, De Repentigny Yves, Kothary Rashmi
Primary Institution: Ottawa Hospital Research Institute
Hypothesis
The Plp promoter drives expression in a broader range of cell types than previously thought, particularly during early development.
Conclusion
The study shows that the Plp promoter is active in various cell types beyond oligodendrocytes during embryonic and early postnatal development.
Supporting Evidence
- The Plp promoter was shown to drive expression in both oligodendrocytes and other CNS cell types during early development.
- Cre expression was detected in various tissues, including the spinal cord and cerebellum, at different developmental stages.
- Transgenic mice demonstrated a shift in Plp promoter activity from widespread expression in early development to more specific expression in oligodendrocytes later on.
Takeaway
This study found that a gene usually linked to brain cells called oligodendrocytes is also active in other types of brain cells when the brain is still developing.
Methodology
Transgenic mice expressing Cre recombinase under the control of the Plp promoter were generated and analyzed for expression patterns in various CNS tissues.
Limitations
The transgene may not completely mimic the endogenous Plp gene expression due to position-effect in transgenic mice.
Digital Object Identifier (DOI)
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