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Related Concept Videos

Reporter Genes02:11

Reporter Genes

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Reporter genes are a type of protein-coding gene that are often tagged to a gene of interest. Once inside a target cell, reporter genes usually produce visually identifiable characteristics like fluorescence and luminescence when expressed along with the gene of interest. Thus, reporter genes “report” the presence or absence of genes of interest in an organism, determine the gene expression pattern, or track the physical location of a DNA segment or protein in the cell.
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Using Luciferase to Image Bacterial Infections in Mice
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Autonomous bioluminescence emission from transgenic mice.

Kamila A Kiszka1, Christian Dullin2,3,4, Heinz Steffens1

  • 1Department of NanoBiophotonics, Max Planck Institute for Multidisciplinary Sciences, Göttingen, Germany.

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|July 9, 2025
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Summary
This summary is machine-generated.

Researchers created a transgenic mouse that glows without needing external chemicals. This breakthrough enables non-invasive, real-time imaging of living mammals using bacterial bioluminescence technology.

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Area of Science:

  • Biotechnology
  • Molecular Biology
  • Genetics

Background:

  • Bacterial bioluminescence systems offer potential for in vivo imaging.
  • Previous applications were limited to in vitro cell cultures.
  • Stable integration into mammalian cells remained a challenge.

Purpose of the Study:

  • To develop a method for substrate-free in vivo bioluminescence imaging in mammals.
  • To generate a transgenic mouse model with constitutive bacterial bioluminescence.
  • To overcome the limitations of in vitro applications.

Main Methods:

  • Constitutive expression of bacterial bioluminescence genes in a mouse model.
  • Generation of a transgenic mouse line.
  • In vivo luminescence imaging techniques.

Main Results:

  • Successfully generated an autobioluminescent transgenic mouse line.
  • Demonstrated substrate-free in vivo luminescence imaging in a living mammal.
  • Established a novel platform for non-invasive biological research.

Conclusions:

  • The bacterial bioluminescence system can be stably integrated and expressed in vivo in mammals.
  • This transgenic model enables novel applications in biological research and diagnostics.
  • Substrate-free in vivo imaging is achievable in living mammals.