Evidence map›Paper›PMID 17963525›Full record

ArticleBMC biotechnology2007

Long term expression of bicistronic vector driven by the FGF-1 IRES in mouse muscle.

Camille Allera-Moreau, Aurélie Delluc-Clavières, Caroline Castano, Loïc Van den Berghe, Muriel Golzio, Marc Moreau, Justin Teissié, Jean-François Arnal, Anne-Catherine Prats

Open access · goldAbstract read
In one paragraph

Article in BMC biotechnology, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
0.8field-weighted citation impact, top 29% 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

12 citing papers in PubMed, 21 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Internal ribosome entry site-based vectors for combined gene therapy.World journal of experimental medicine · 2015
    Review
  7. Article
  8. Article
  9. Article
  10. IRES-based vector coexpressing FGF2 and Cyr61 provides synergistic and safe therapeutics of lower limb ischemia.Molecular therapy : the journal of the American Society of Gene Therapy · 2009
    Article
  11. Review
  12. Review
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

9 authors at 5 institutions in 1 country.

Camille Allera-MoreauInstitut national de la santé et de la recherche médicale (INSERM), U858, Toulouse, France. camille.allera@toulouse.inserm.fr
Aurélie Delluc-Clavières
Caroline Castano
Loïc Van den Berghe
Muriel Golzio
Marc Moreau
Justin Teissié
Jean-François Arnal
Anne-Catherine Prats
Centre National de la Recherche Scientifique · FRInserm · FRUniversité Fédérale de Toulouse Midi-Pyrénées · FRUniversité Toulouse III - Paul Sabatier · FRInstitut de Pharmacologie et de Biologie Structurale · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundElectrotransfer of plasmid DNA into skeletal muscle is a promising strategy for the delivery of therapeutic molecules targeting various muscular diseases, cancer and lower-limb ischemia. Internal Ribosome Entry Sites (IRESs) allow co-expression of proteins of interest from a single transcriptional unit. IRESs are RNA elements that have been found in viral RNAs as well as a variety of cellular mRNAs with long 5' untranslated regions. While the encephalomyocarditis virus (EMCV) IRES is often used in expression vectors, we have shown that the FGF-1 IRES is equally active to drive short term transgene expression in mouse muscle. To compare the ability of the FGF-1 IRES to drive long term expression against the EMCV and FGF-2 IRESs, we performed analyses of expression kinetics using bicistronic vectors that express the bioluminescent renilla and firefly luciferase reporter genes. Long term expression of bicistronic vectors was also compared to that of monocistronic vectors. Bioluminescence was quantified ex vivo using a luminometer and in vivo using a CCD camera that monitors luminescence within live animals.

resultsOur data demonstrate that the efficiency of the FGF-1 IRES is comparable to that of the EMCV IRES for long term expression of bicistronic transgenes in mouse muscle, whereas the FGF-2 IRES has a very poor activity. Interestingly, we show that despite the global decrease of vector expression over time, the ratio of firefly to renilla luciferase remains stable with bicistronic vectors containing the FGF-1 or FGF-2 IRES and is slightly affected with the EMCV IRES, whereas it is clearly unstable for mixed monocistronic vectors. In addition, long term expression more drastically decreases with monocistronic vectors, and is different for single or mixed vector injection.

conclusionThese data validate the use of bicistronic vectors rather than mixed monocistronic vectors for long term expression, and support the use of the FGF-1 IRES. The use of a cellular IRES over one of viral origin is of particular interest in the goal of eliminating viral sequences from transgenic vectors. In addition, the FGF-1 IRES, compared to the EMCV IRES, has a more stable activity, is shorter in length and more flexible in terms of downstream cloning of second cistrons. Finally, the FGF-1 IRES is very attractive to develop multicistronic expression cassettes for gene transfer in mouse muscle.

Indexed as

Gene Expression RegulationAnimalsDisease Models, AnimalDNAFibroblast Growth Factor 1Fibroblast Growth Factor 2Genetic VectorsKineticsMiceMice, Inbred C57BLModels, BiologicalMuscle, SkeletalRegression AnalysisRibosomesRNA, MessengerTransgenesDNAFibroblast Growth Factor 1Fibroblast Growth Factor 2RNA, Messenger

Identifiers

PMID17963525
PMCPMC2180170
OpenAlexW2026363818

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.