Evidence map›Paper›PMID 23734247›Full record

ArticlePloS one2013

To clone or not to clone? Induced pluripotent stem cells can be generated in bulk culture.

Charlotte A Willmann, Hatim Hemeda, Lisa A Pieper, Michael Lenz, Jie Qin, Sylvia Joussen, Stephanie Sontag, Paul Wanek, Bernd Denecke, Herdit M Schüler and 2 more

Abstract read
In one paragraph

Article in PloS one, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

24 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Mental health dished up-the use of iPSC models in neuropsychiatric research.Journal of neural transmission (Vienna, Austria : 1996) · 2020
    Pooled it
  2. Article
  3. Article
  4. Article
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  6. Novel test strategies for in vitro seizure liability assessment.Expert opinion on drug metabolism & toxicology · 2021
    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

12 authors.

Charlotte A WillmannHelmholtz-Institute for Biomedical Technology, Stem Cell Biology and Cellular Engineering, RWTH Aachen University Medical School, Aachen, Germany.
Hatim Hemeda
Lisa A Pieper
Michael Lenz
Jie Qin
Sylvia Joussen
Stephanie Sontag
Paul Wanek
Bernd Denecke
Herdit M Schüler
Martin Zenke
Wolfgang Wagner

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Induced pluripotent stem cells (iPSCs) are usually clonally derived. The selection of fully reprogrammed cells generally involves picking of individual colonies with morphology similar to embryonic stem cells (ESCs). Given that fully reprogrammed cells are highly proliferative and escape from cellular senescence, it is conceivable that they outgrow non-pluripotent and partially reprogrammed cells during culture expansion without the need of clonal selection. In this study, we have reprogrammed human dermal fibroblasts (HDFs) with episomal plasmid vectors. Colony frequency was higher and size was larger when using murine embryonic fibroblasts (MEFs) as stromal support instead of HDFs or human mesenchymal stromal cells (MSCs). We have then compared iPSCs which were either clonally derived by manual selection of a single colony, or derived from bulk-cultures of all initial colonies. After few passages their morphology, expression of pluripotency markers, and gene expression profiles did not reveal any significant differences. Furthermore, clonally-derived and bulk-cultured iPSCs revealed similar in vitro differentiation potential towards the three germ layers. Therefore, manual selection of individual colonies does not appear to be necessary for the generation of iPSCs - this is of relevance for standardization and automation of cell culture procedures.

Indexed as

Cell ProliferationAnimalsCell Culture TechniquesCell DifferentiationCells, CulturedClone CellsEmbryonic Stem CellsFibroblastsFlow CytometryGene Expression ProfilingHumansInduced Pluripotent Stem CellsKaryotypingMesenchymal Stem CellsMiceMicroscopy, Fluorescence

Identifiers

PMID23734247
PMCPMC3667031

What OpenQuestion holds

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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.