Evidence map›Paper›PMID 22253858›Full record

ArticlePloS one2012

A modified RMCE-compatible Rosa26 locus for the expression of transgenes from exogenous promoters.

Jan S Tchorz, Thomas Suply, Iwona Ksiazek, Claudio Giachino, Dimitri Cloëtta, Claus-Peter Danzer, Thierry Doll, Andrea Isken, Marianne Lemaistre, Verdon Taylor and 3 more

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 38 papers.

0numbers the graph read from it
0cells of the map it votes in
38citing papers in PubMed
3.2field-weighted citation impact, top 7% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

38 citing papers in PubMed, 71 citations in OpenAlex.

  1. Article
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  8. Article
  9. Targeted Integration of Transgenes at the Mouse Gt(ROSA)26Sor Locus.Methods in molecular biology (Clifton, N.J.) · 2023
    Article
  10. Building Blocks of Artificial CRISPR-Based Systems beyond Nucleases.International journal of molecular sciences · 2022
    Review
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

13 authors at 4 institutions in 3 countries.

Jan S TchorzNovartis Institute for Biomedical Research, Developmental and Molecular Pathways, Novartis Pharma AG, Basel, Switzerland.
Thomas Suply
Iwona Ksiazek
Claudio Giachino
Dimitri Cloëtta
Claus-Peter Danzer
Thierry Doll
Andrea Isken
Marianne Lemaistre
Verdon Taylor
Bernhard Bettler
Bernd Kinzel
Matthias Mueller
Novartis (Switzerland) · CHUniversity of Basel · CHMax Planck Institute of Immunobiology and Epigenetics · DEUniversity of Sheffield · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Generation of gain-of-function transgenic mice by targeting the Rosa26 locus has been established as an alternative to classical transgenic mice produced by pronuclear microinjection. However, targeting transgenes to the endogenous Rosa26 promoter results in moderate ubiquitous expression and is not suitable for high expression levels. Therefore, we now generated a modified Rosa26 (modRosa26) locus that combines efficient targeted transgenesis using recombinase-mediated cassette exchange (RMCE) by Flipase (Flp-RMCE) or Cre recombinase (Cre-RMCE) with transgene expression from exogenous promoters. We silenced the endogenous Rosa26 promoter and characterized several ubiquitous (pCAG, EF1α and CMV) and tissue-specific (VeCad, αSMA) promoters in the modRosa26 locus in vivo. We demonstrate that the ubiquitous pCAG promoter in the modRosa26 locus now offers high transgene expression. While tissue-specific promoters were all active in their cognate tissues they additionally led to rare ectopic expression. To achieve high expression levels in a tissue-specific manner, we therefore combined Flp-RMCE for rapid ES cell targeting, the pCAG promoter for high transgene levels and Cre/LoxP conditional transgene activation using well-characterized Cre lines. Using this approach we generated a Cre/LoxP-inducible reporter mouse line with high EGFP expression levels that enables cell tracing in live cells. A second reporter line expressing luciferase permits efficient monitoring of Cre activity in live animals. Thus, targeting the modRosa26 locus by RMCE minimizes the effort required to target ES cells and generates a tool for the use exogenous promoters in combination with single-copy transgenes for predictable expression in mice.

Indexed as

AnimalsAttachment Sites, MicrobiologicalEmbryonic Stem CellsGenes, ReporterGenetic LociGreen Fluorescent ProteinsIntegrasesLuciferasesMiceMice, Inbred BALB CMice, TransgenicMutagenesis, InsertionalOrgan SpecificityPromoter Regions, GeneticProteinsRNA, UntranslatedCre recombinaseenhanced green fluorescent proteinGreen Fluorescent ProteinsGt(ROSA)26Sor non-coding RNA, mouseIntegrasesLuciferasesProteinsRNA, Untranslated

Identifiers

PMID22253858
PMCPMC3258265
OpenAlexW2159789034

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.