Methodenartikel

Inducible Tet-On Regulatable System-Based Gene Expression In Vivo: A Tetracycline-Induced Gene Expression System for Target Gene Transcription Activation in Mouse Model

8 juli 2025

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Samenvatting

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Source: Hubner, E. K. et al.  Constitutive and Inducible Systems for Genetic In Vivo Modification of Mouse Hepatocytes Using Hydrodynamic Tail Vein Injection. J. Vis. Exp. (2018)

This video demonstrates the tetracycline, or Tet-On, gene expression system in a mouse model. In the presence of doxycycline, a tetracycline derivative, the Tet-On system consisting of reverse tetracycline-controlled transactivator protein becomes activated and expresses the gene of interest.

Protocol

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All procedures involving animal models have been reviewed by the local institutional animal care committee and the JoVE veterinary review board.

1. Induction of Tetracycline-dependent Gene or shRNA Expression

CAUTION: Doxycycline may be harmful. Please refer to the safety data sheet.

NOTE: Depending on the type and duration of the experiment, doxycycline can be supplied in drinking water.

  1. For short term experiments (<10 days) administer doxycycline via drinking water using the following protocol.
    1. Dissolve 5 g sucrose in 100 mL of tap water. Autoclave.
    2. Dissolve 100 mg of doxycycline-hyclate in 5 mL of sucrose solution (step 1.1.1) in a 15-mL conical tube.
    3. Using a 10-mL syringe, sterile filter the solution through a 0.2 µm filter. Add to the sucrose solution prepared in step 1.1.1.
    4. Supply doxycycline-sucrose solution as drinking water to the mouse. Check daily and replace when the solution becomes cloudy indicating bacterial overgrowth (replace clear solution after three days at the latest).

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Openbaarmakingen

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No conflicts of interest declared.

Materialen

Lijst van materialen gebruikt in dit artikel
NaamBedrijfCatalogusnummerOpmerkingen
D(+)-SaccharoseCarl Roth4621.1For sweetening of the doxycyline solution
Doxycycline hyclateAppliChemA2951,0025Activation of tetracycline-dependent expression
Injekt 10 ml SyringeBraun4606108V
Filtropur S 0.2Sarstedt831.826.001For filtration of doxycycline

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Trefwoorden

Tet On systeemdoxycycline inductiereverse tetracycline controlled transactivatortetracycline responsief elementhydrodynamische staartvene injectiehepatocyten van muizenconditionele genexpressietranscriptionele activatiereportergenexpressie

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