Evidence map›Paper›PMID 19904830›Full record

ArticleStem cells (Dayton, Ohio)2010

Excision of reprogramming transgenes improves the differentiation potential of iPS cells generated with a single excisable vector.

Cesar A Sommer, Andreia Gianotti Sommer, Tyler A Longmire, Constantina Christodoulou, Dolly D Thomas, Monica Gostissa, Fred W Alt, George J Murphy, Darrell N Kotton, Gustavo Mostoslavsky

Open access · bronzeAbstract read
In one paragraph

Article in Stem cells (Dayton, Ohio), 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 131 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
131citing papers in PubMed, 1 pooled it
14.5field-weighted citation impact, top 1% 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

131 citing papers in PubMed, 1 synthesis or guideline pooled it, 268 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Generation of iPSCs Using Sendai Virus Vectors.Methods in molecular biology (Clifton, N.J.) · 2024
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  17. Rhesus Macaque iPSC Generation and Maintenance.Current protocols in stem cell biology · 2017
    Article
  18. Article
  19. Article
  20. Review

71 more citing papers are in PubMed but not listed here.

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

10 authors at 2 institutions in 1 country.

Cesar A SommerSection of Gastroenterology, Department of Medicine, Boston University School of Medicine, Boston, Massachusetts 02118, USA.
Andreia Gianotti Sommer
Tyler A Longmire
Constantina Christodoulou
Dolly D Thomas
Monica Gostissa
Fred W Alt
George J Murphy
Darrell N Kotton
Gustavo Mostoslavsky
Boston University · USHarvard University · US

Funding

Study of Rag1 hypomorphic mice and their rescue by lentiviral gene transferR21HD060308 · NICHD · BOSTON MEDICAL CENTER · PI MOSTOSLAVSKY, GUSTAVO · 2008 to 2009
$462k
NICHD NIH HHS R21 HD060308
6 · The paper itself

Abstract

The residual presence of integrated transgenes following the derivation of induced pluripotent stem (iPS) cells is highly undesirable. Here we demonstrate efficient derivation of iPS cells free of exogenous reprogramming transgenes using an excisable polycistronic lentiviral vector. A novel version of this vector containing a reporter fluorochrome allows direct visualization of vector excision in living iPS cells in real time. We find that removal of the reprogramming vector markedly improves the developmental potential of iPS cells and significantly augments their capacity to undergo directed differentiation in vitro. We further propose that methods to efficiently excise reprogramming transgenes with minimal culture passaging, such as those demonstrated here, are critical since we find that iPS cells may acquire chromosomal abnormalities, such as trisomy of chromosome 8, similar to embryonic stem cells after expansion in culture. Our findings illustrate an efficient method for the generation of transgene-free iPS cells and emphasize the potential beneficial effects that may result from elimination of integrated reprogramming factors. In addition, our results underscore the consequences of long-term culture that will need to be taken into account for the clinical application of iPS cells.

Indexed as

Cellular ReprogrammingGene Expression Regulation, DevelopmentalGenetic VectorsTransduction, GeneticTransgenesAnimalsBiomarkersCell DifferentiationCell ProliferationGreen Fluorescent ProteinsInduced Pluripotent Stem CellsIntegrasesKruppel-Like Factor 4Kruppel-Like Transcription FactorsLentivirusMiceBiomarkersCre recombinaseGreen Fluorescent ProteinsIntegrasesKruppel-Like Factor 4Kruppel-Like Transcription FactorsOctamer Transcription Factor-3Pou5f1 protein, mouseProto-Oncogene Proteins c-mycRecombinant Fusion ProteinsSox2 protein, mouseSOXB1 Transcription Factors

Identifiers

PMID19904830
PMCPMC4848036
OpenAlexW2167874626

What OpenQuestion holds

Textmetadata
LicenceTDM
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.