Tetracycline Inducible Cells
Tetracycline Inducible Cells - Related Videos
06:19
Inducible Tet-Off Regulatable System: An In Vitro Method to Modulate Gene Expression in Cultured Cells Using Tetracycline-Off System
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2025
This video describes the method of regulating gene expression in cultured cells by transfection with a plasmid containing a gene of interest and a regulatory plasmid. The expression of this plasmid can be controlled by tetracycline or its synthetic analogs, making this system a useful model to study regulatable gene expression.
09:51
Generation of Stable Human Cell Lines with Tetracycline-inducible (Tet-on) shRNA or cDNA Expression
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Cited by 16 •
2013
A rapid and simple way to generate human cell lines with inducible and reversible cDNA overexpression or shRNA-mediated knock-down of the gene of interest. This method enables researchers to reliably and highly reproducibly manipulate cell lines that are difficult to alter by transient transfection methods or conventional knockdown/knockout strategies.
03:33
Generating Conditional Knockdown Cells Using a Tetracycline-Responsive Lentiviral shRNA Expression System
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2026
Source: Kubala, M. H. & DeClerck, Y. A. Conditional Knockdown of Gene Expression in Cancer Cell Lines to Study the Recruitment of Monocytes/Macrophages to the Tumor Microenvironment. J. Vis. Exp. (2017)This video demonstrates the generation of conditional knockdown cancer cell lines using a Tet-inducible lentiviral shRNA system. It outlines the steps for viral transduction, antibiotic selection, and doxycycline-induced gene silencing.
03:27
Inducible Tet-On Regulatable System-Based Gene Expression In Vivo: A Tetracycline-Induced Gene Expression System for Target Gene Transcription Activation in Mouse Model
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2025
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.
16:04
A Tetracycline-regulated Cell Line Produces High-titer Lentiviral Vectors that Specifically Target Dendritic Cells
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Cited by 6 •
2013
Here, we use retroviral transduction and concatemeric transfection to create a cell line that can express the components of a lentiviral vector (LV) in the absence of tetracycline. This LV encodes GFP and is pseudotyped with a glycoprotein, SVGmu, which is specific for a receptor on dendritic cells.
FAQs
In a Tet-On design, doxycycline binds the reverse tetracycline-controlled transactivator, changing its regulatory behavior so it can recognize tetracycline response elements. This interaction connects antibiotic exposure to transcription of the engineered target gene. The system therefore provides a controllable link between adding doxycycline and activating gene expression in cultured cells.
Tet-On and Tet-Off systems use opposite regulatory responses to tetracycline exposure. In Tet-On cells, doxycycline enables the transactivator to recognize tetracycline response elements and activate transcription. In a Tet-Off arrangement, tetracycline blocks gene expression instead. This distinction allows investigators to select the control logic that best fits the timing and direction of their experiment.
Conditional control helps researchers separate a gene’s effects during cell development from its effects during routine cell maintenance. Constitutive expression can expose cells to the target gene continuously, making those stages difficult to distinguish. Tetracycline-regulated cells provide a way to examine gene activation or suppression at selected experimental stages, clarifying relationships between gene activity and cellular behavior.
The response depends on an engineered regulatory system containing a tetracycline-controlled transactivator and tetracycline response elements associated with the target gene. In Tet-On cells, doxycycline influences the transactivator so it can recognize those elements. Their coordinated presence determines whether antibiotic exposure is connected to transcription, making both regulatory components central to the experimental design.
A study begins with cultured cells carrying the engineered tetracycline-responsive target system. Researchers then compare cellular behavior under the relevant regulatory conditions, such as doxycycline-associated activation in a Tet-On design or tetracycline-associated blocking in a Tet-Off design. Measurements of gene-related or cellular changes can then be interpreted against the controlled expression state.
Researchers may choose this approach when continuous target-gene expression could interfere with cell maintenance, development, or interpretation of results. Regulated expression allows the gene to be examined in relation to a defined experimental state rather than being active throughout the cell’s history. This is useful for investigating gene function, signaling pathways, differentiation, disease mechanisms, and drug responses.
They can support experiments that examine how controlled gene activity affects signaling pathways, differentiation, disease mechanisms, and responses to drugs. Because expression can be linked to tetracycline exposure, investigators can compare cellular outcomes across regulated conditions. In cultured biological models, this helps connect a target gene’s activity with changes in development, maintenance, or experimentally measured behavior.
Their value extends beyond gene-switch design because they provide a controlled model for testing cause-and-effect relationships in cells. Researchers can investigate what happens when a target gene is activated or blocked while studying development, maintenance, signaling, disease-related processes, or pharmacological responses. This conditional framework helps organize experiments around changes in gene activity rather than continuous expression alone.