Linked Life Data

11835669

Source:http://linkedlifedata.com/resource/pubmed/id/11835669

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
2002-2-8
pubmed:abstractText
Cre-mediated site-specific recombination allows conditional transgene expression or gene knockouts in mice. Inducible Cre recombination systems have been developed to bypass initial embryonic lethal phenotypes and provide access to later embryonic or adult phenotypes. We have produced Cre transgenic mice in which excision is tamoxifen inducible and occurs in a widespread mosaic pattern. We utilized our Cre excision reporter system combined with an embryonic stem (ES) cell screen to identify ES cell clones with undetectable background Cre activity in the absence of tamoxifen but efficient excision upon addition of tamoxifen. The CreER transgenic mouse lines derived from the ES cells were tested using the Z/AP and Z/EG Cre reporter lines. Reporter gene expression indicated Cre excision was maximal in midgestation embryos by 2 days after tamoxifen administration, with an overall efficiency of 5-10% of cells with Cre excision. At 3 days after tamoxifen treatment most reporter gene expression marked groups of cells, suggesting an expansion of cells with Cre excision, and the proportion of cells with Cre excision was maintained. In adults, Cre excision was also observed with varying efficiencies in all tissues after tamoxifen treatment.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jan
pubmed:issn
1526-954X
pubmed:author
pubmed:copyrightInfo
Copyright 2002 Wiley-Liss, Inc.
pubmed:issnType
Print
pubmed:volume
32
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
8-18
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
2002
pubmed:articleTitle
A Cre recombinase transgene with mosaic, widespread tamoxifen-inducible action.
pubmed:affiliation
Molecular and Cellular Biology Research, Sunnybrook and Women's College Health Science Centre, Toronto, Ontario, Canada.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't