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Controlled gene activation and inactivation in the mouse
1Instituto Gulbenkian de Ciencia, 2780-156 Oeiras, Portugal. mallo@igc.gulbenkian.pt
Frontiers in Bioscience : a Journal and Virtual Library
|September 9, 2005
Summary
Gene manipulation in mice allows studying diseases in living animals. Techniques like Tet, lac, Gal4/UAS, Cre/lox, and FLP/FRT offer precise, reversible control over gene expression for research and therapeutic development.
Area of Science:
- Molecular Biology
- Genetics
- Animal Models
Background:
- Gene expression manipulation in mice is crucial for studying biological processes and modeling human diseases.
- Existing systems often borrow regulatory mechanisms from yeast and prokaryotes for precise cellular control.
Purpose of the Study:
- To review widely used gene manipulation systems in mice.
- To highlight their application in achieving spatial, temporal, and reversible control of gene expression.
- To focus on systems enabling specific gene activation.
Main Methods:
- Discussion of transcriptional regulation systems: Tet, lac, and Gal4/UAS.
- Explanation of site-specific recombination systems: Cre/lox and FLP/FRT.
- Emphasis on achieving specific gene activation through these methods.
Main Results:
- Tet, lac, and Gal4/UAS systems provide spatial and temporal control over gene expression reversibly.
- Cre/lox and FLP/FRT systems utilize site-specific recombination for gene manipulation.
- These systems facilitate targeted gene activation in mouse models.
Conclusions:
- Advanced gene manipulation techniques in mice are vital for understanding disease mechanisms and evaluating therapies.
- Transcriptional and recombination-based systems offer powerful tools for precise gene expression control.
- These methods advance the development of sophisticated animal models for biomedical research.