Development of a single-cassette system for spatiotemporal gene regulation in mice.

Abstract:

:The tetracycline-regulated gene expression system has been widely used in mice to turn a transgene on and off in a target organ, but with only limited success. We developed an advanced system in which a Tet-off regulation unit was integrated into the ROSA26 locus and became active after Cre-mediated excision of the neo(r) gene. We examined the utility of this system through regulable expression of the homeodomain transcription factor pdx-1 and enhanced green fluorescent protein. The resulting mice showed strict tetracycline-regulable gene expression in all the organs where the neo(r) gene had been removed. When combined with organ-specific Cre recombinase transgenic mice, our system allows us to manipulate the gene expression in an organ-specific and temporal manner. This Tet-off system should serve as an efficient tool to analyze the roles of genes in complex biological systems, such as embryogenesis, metabolism, immune system, etc.

authors

Miyazaki S,Miyazaki T,Tashiro F,Yamato E,Miyazaki J

doi

10.1016/j.bbrc.2005.10.054

subject

Has Abstract

pub_date

2005-12-16 00:00:00

pages

1083-8

issue

2

eissn

0006-291X

issn

1090-2104

pii

S0006-291X(05)02303-X

journal_volume

338

pub_type

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