Visualization of the Dynamics of Gene Expression in the Living Mouse

Reporter genes can monitor the status and activity of recombinant genomes in a diverse array of organisms, from bacteria and yeast to plants and animals. We have combined luciferase reporter genes with a conditional gene expression system based on regulatory elements from the lac Operon of Escherich...

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Main Authors: Amy Ryan, Heidi Scrable
Format: Article
Language:English
Published: SAGE Publishing 2004-01-01
Series:Molecular Imaging
Online Access:https://doi.org/10.1162/15353500200403193
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author Amy Ryan
Heidi Scrable
author_facet Amy Ryan
Heidi Scrable
author_sort Amy Ryan
collection DOAJ
description Reporter genes can monitor the status and activity of recombinant genomes in a diverse array of organisms, from bacteria and yeast to plants and animals. We have combined luciferase reporter genes with a conditional gene expression system based on regulatory elements from the lac Operon of Escherichia coli to visualize the dynamics of gene expression in realtime in the living mouse. Using this technology, we have determined the rate of gene induction and repression, the level of target gene activity in response to different doses of inducer, and the schedule of induction during early embryogenesis of both the endogenous and the experimentally manipulated programs of mammalian gene expression associated with the HD/Hdh locus. The combination of in vivo imaging and lac regulation is a powerful tool for generating conditional transgenic mice that can be screened rapidly for optimal regulation and expression patterns, and for monitoring the induction and repression of regulated genes noninvasively in the living animal.
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series Molecular Imaging
spelling doaj-art-5e662a0cec8742fc80cacab435b3edba2025-01-03T00:11:46ZengSAGE PublishingMolecular Imaging1536-01212004-01-01310.1162/1535350020040319310.1162_15353500200403193Visualization of the Dynamics of Gene Expression in the Living MouseAmy RyanHeidi ScrableReporter genes can monitor the status and activity of recombinant genomes in a diverse array of organisms, from bacteria and yeast to plants and animals. We have combined luciferase reporter genes with a conditional gene expression system based on regulatory elements from the lac Operon of Escherichia coli to visualize the dynamics of gene expression in realtime in the living mouse. Using this technology, we have determined the rate of gene induction and repression, the level of target gene activity in response to different doses of inducer, and the schedule of induction during early embryogenesis of both the endogenous and the experimentally manipulated programs of mammalian gene expression associated with the HD/Hdh locus. The combination of in vivo imaging and lac regulation is a powerful tool for generating conditional transgenic mice that can be screened rapidly for optimal regulation and expression patterns, and for monitoring the induction and repression of regulated genes noninvasively in the living animal.https://doi.org/10.1162/15353500200403193
spellingShingle Amy Ryan
Heidi Scrable
Visualization of the Dynamics of Gene Expression in the Living Mouse
Molecular Imaging
title Visualization of the Dynamics of Gene Expression in the Living Mouse
title_full Visualization of the Dynamics of Gene Expression in the Living Mouse
title_fullStr Visualization of the Dynamics of Gene Expression in the Living Mouse
title_full_unstemmed Visualization of the Dynamics of Gene Expression in the Living Mouse
title_short Visualization of the Dynamics of Gene Expression in the Living Mouse
title_sort visualization of the dynamics of gene expression in the living mouse
url https://doi.org/10.1162/15353500200403193
work_keys_str_mv AT amyryan visualizationofthedynamicsofgeneexpressioninthelivingmouse
AT heidiscrable visualizationofthedynamicsofgeneexpressioninthelivingmouse