Evidence map›Paper›PMID 22889305›Full record

ArticleStem cells and development2013

The generation of definitive neural stem cells from PiggyBac transposon-induced pluripotent stem cells can be enhanced by induction of the NOTCH signaling pathway.

Ryan P Salewski, Josef Buttigieg, Robert A Mitchell, Derek van der Kooy, Andras Nagy, Michael G Fehlings

Open access · greenAbstract read
In one paragraph

Article in Stem cells and development, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
2.6field-weighted citation impact, top 11% 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

23 citing papers in PubMed, 55 citations in OpenAlex.

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  11. Induced Pluripotent Stem Cells for Traumatic Spinal Cord Injury.Frontiers in cell and developmental biology · 2016
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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

6 authors at 5 institutions in 2 countries.

Ryan P SalewskiDivision of Genetics and Development, Toronto Western Research Institute, Toronto, Canada.
Josef Buttigieg
Robert A Mitchell
Derek van der Kooy
Andras Nagy
Michael G Fehlings
University of Toronto · CAMount Sinai Hospital · CAToronto Western Hospital · CAUniversity Health Network · CAUniversity of Regina · CA

Funding

Canadian Institutes of Health Research NHG 99090
6 · The paper itself

Abstract

Cell-based therapies using neural stem cells (NSCs) have shown positive outcomes in various models of neurological injury and disease. Induced pluripotent stem cells (iPSCs) address many problems associated with NSCs from various sources, including the immune response and cell availability. However, due to inherent differences between embryonic stem cells (ESCs) and iPSCs, detailed characterization of the iPS-derived NSCs will be required before translational experiments can be performed. Murine piggyBac transposon iPSCs were clonally expanded in floating sphere colonies to generate primitive NSCs initially with serum-free media (SFM) containing the leukemia inhibitory factor and followed by SFM with the fibroblast growth factor-2 (FGF2) to form colonies of definitive NSCs (dNSCs). Primitive and definitive clonally derived neurospheres were successfully generated using the default conditions from iPSCs and ESCs. However, the iPSC-dNSCs expressed significantly higher levels of pluripotency and nonectoderm lineage genes compared to equivalent ESC-dNSCs. The addition of the bone morphogenetic proteins antagonist, Noggin, to the media significantly increased primary neurosphere generation from the iPSC lines, but did not affect the dNSC sphere colonies generated. The induction of the NOTCH pathway by the Delta-like ligand 4 (DLL4) improved the generation and quality of dNSCs, as demonstrated by a reduction in pluripotency and nonectodermal markers, while maintaining NSC-specific gene expression. The iPS-dNSCs (+DLL4) showed functional neural differentiation by immuncytochemical staining and electrophysiology. This study suggests the intrinsic differences between ESCs and iPSCs in their ability to acquire a dNSC fate that can be overcome by inducing the NOTCH pathway.

Indexed as

Cell DifferentiationSignal TransductionAnimalsBasic Helix-Loop-Helix ProteinsCarrier ProteinsCells, CulturedDipeptidesDNA Transposable ElementsEmbryonic Stem CellsInduced Pluripotent Stem CellsIntracellular Signaling Peptides and ProteinsMembrane PotentialsMembrane ProteinsMiceNerve Tissue ProteinsNeural Stem CellsBasic Helix-Loop-Helix ProteinsCarrier Proteinsdelta proteinDipeptidesDNA Transposable ElementsHes3 protein, mouseIntracellular Signaling Peptides and ProteinsMembrane ProteinsNerve Tissue ProteinsN-(N-(3,5-difluorophenacetyl)alanyl)phenylglycine tert-butyl esterNoggin ProteinNotch1 protein, mouseReceptor, Notch1Repressor Proteins

Identifiers

PMID22889305
PMCPMC3549637
OpenAlexW1968336312

What OpenQuestion holds

Textmetadata
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.