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Related Experiment Video

Updated: Jul 17, 2026

An Ecdysone Receptor-based Singular Gene Switch for Deliberate Expression of Transgene with Robustness, Reversibility, and Negligible Leakiness

An Ecdysone Receptor-based Singular Gene Switch for Deliberate Expression of Transgene with Robustness, Reversibility, and Negligible Leakiness

Published on: May 7, 2018

Tetracycline-controlled genetic switches.

R Sprengel¹, M T Hasan

¹Max Planck Institute for Medical Research, Jahnstrasse 29, 69120 Heidelberg, Germany.

Handbook of Experimental Pharmacology

|January 6, 2007

Summary

Tetracycline-controlled genetic switches offer reversible gene expression in mice, unlike older methods. Optimized Tet-Off and Tet-On systems provide complementary tools for developing advanced mouse models.

Area of Science:

Molecular Biology
Genetics
Animal Models

Background:

Recombinase-mediated gene manipulation offers limited reversibility.
Tetracycline (Tet)-controlled genetic switches provide a powerful tool for regulating gene expression.
Tet-Off and Tet-On systems offer distinct mechanisms for transcriptional control.

Purpose of the Study:

To compare and contrast Tet-Off and Tet-On systems for gene expression control.
To highlight the advantages of Tet-controlled switches for reversible gene manipulation.
To underscore the utility of optimized Tet systems in developing mouse models.

Main Methods:

Utilizing tetracycline-controlled transcriptional activators (tTA) for Tet-Off systems.
Employing reverse tetracycline-controlled transcriptional activators (rtTA) for Tet-On systems.

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Optimizing both Tet-Off and Tet-On systems for enhanced performance and reliability.

Main Results:

Tet-controlled genetic switches enable reversible control of gene expression in mice.
Tet-Off systems activate transcription in the absence of Tet; Tet-On systems activate in the presence of Tet.
Both systems have been refined and are suitable for creating sophisticated mouse models.

Conclusions:

Tet-controlled genetic switches represent a significant advancement over traditional gene manipulation techniques.
The choice between Tet-Off and Tet-On systems depends on the specific experimental design.
Optimized Tet systems are valuable tools for genetic research and the development of mouse models.