Split-Cre Complements Gene Activity in Mice
Author Information
Author(s): Hirrlinger Johannes, Scheller Anja, Hirrlinger Petra G., Kellert Beate, Tang Wannan, Wehr Michael C., Goebbels Sandra, Reichenbach Andreas, Sprengel Rolf, Rossner Moritz J., Kirchhoff Frank
Primary Institution: Max Planck Institute of Experimental Medicine
Hypothesis
Can split-Cre fragments be used to achieve efficient gene activation in specific cell types in vivo?
Conclusion
The split-Cre system allows for precise genetic targeting of distinct cell populations based on the simultaneous activity of two promoters.
Supporting Evidence
- Split-Cre allows for the identification of distinct populations of glial progenitors.
- Functional complementation of split-Cre was demonstrated in both transgenic mice and via viral infection.
- Split-Cre can target cell populations defined by the simultaneous expression of two genes.
Takeaway
Scientists created a new tool that helps them turn on genes in specific brain cells only when two signals are present, making it easier to study how these cells work.
Methodology
The study involved creating transgenic mice expressing split-Cre fragments and using viral vectors to test gene activation in specific cell types.
Potential Biases
There may be risks of bias due to the variability in transgene expression and the reliance on specific promoter activity.
Limitations
The efficiency of split-Cre complementation may vary due to the need for two transgenes and potential variability in expression patterns.
Participant Demographics
Transgenic mice were used, specifically those expressing NCre and CCre under the control of GFAP and PLP promoters.
Digital Object Identifier (DOI)
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