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Mosaic Analysis of Gene Function in Postnatal Mouse Brain Development by Using Virus-based Cre Recombination
Published on: August 1, 2011
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Comparative analysis of potential broad-spectrum neuronal Cre drivers
Katie M Paton1, Jim Selfridge1, Jacky Guy1
1Wellcome Centre for Cell Biology, University of Edinburgh, Edinburgh, EH9 3BF, UK.
Wellcome Open Research
|August 15, 2022
Summary
The Snap25-IRES2-cre mouse line offers superior pan-neuronal Cre expression compared to Syn1-cre. Snap25-IRES2-cre targets ~85% of neurons and avoids non-brain tissues, making it ideal for neurological studies.
Area of Science:
- Genetics
- Neuroscience
- Molecular Biology
Background:
- Cre/Lox technology allows precise genetic manipulation in mice.
- Understanding Cre expression patterns is crucial for accurate phenotype interpretation.
- A reliable pan-neuronal Cre driver is needed for brain and neurological disease research.
Purpose of the Study:
- To compare the Cre expression patterns of two mouse lines: Syn1-cre and Snap25-IRES2-cre.
- To evaluate their suitability as pan-neuronal Cre drivers for neuroscience research.
Main Methods:
- Comparative analysis of Cre expression in different brain regions and non-brain tissues.
- Utilizing Cre/Lox technology for genetic lineage tracing and gene manipulation studies.
Main Results:
- Syn1-cre showed broad but incomplete neuronal expression and activity in testes.
- Snap25-IRES2-cre demonstrated high neuronal expression (~85%) and no activity in non-brain tissues.
- Snap25-IRES2-cre exhibited superior specificity and efficiency as a pan-neuronal Cre driver.
Conclusions:
- Snap25-IRES2-cre is a more effective pan-neuronal Cre driver than Syn1-cre for neuroscience applications.
- This finding aids researchers in selecting appropriate tools for studying brain function and disease.
