Evidence map›Paper›PMID 24936458›Full record

ArticleStem cell reports2014

A 3D sphere culture system containing functional polymers for large-scale human pluripotent stem cell production.

Tomomi G Otsuji, Jiang Bin, Azumi Yoshimura, Misayo Tomura, Daiki Tateyama, Itsunari Minami, Yoshihiro Yoshikawa, Kazuhiro Aiba, John E Heuser, Taito Nishino and 2 more

Erratum issuedAbstract read
In one paragraph

Article in Stem cell reports, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 58 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
58citing 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

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

  1. Pooled it
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  10. Biofabrication of engineered blood vessels for biomedical applications.Science and technology of advanced materials · 2024
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

12 authors.

Tomomi G OtsujiInstitute for Integrated Cell-Material Sciences (WPI-iCeMS), Kyoto University, Ushinomiya-cho, Yoshida, Sakyo-ku, Kyoto 606-8501, Japan.
Jiang BinInstitute for Integrated Cell-Material Sciences (WPI-iCeMS), Kyoto University, Ushinomiya-cho, Yoshida, Sakyo-ku, Kyoto 606-8501, Japan.
Azumi YoshimuraInstitute for Integrated Cell-Material Sciences (WPI-iCeMS), Kyoto University, Ushinomiya-cho, Yoshida, Sakyo-ku, Kyoto 606-8501, Japan.
Misayo TomuraNissan Chemical Industries, Ltd., 3-7-1 Kanda Nishiki-cho, Chiyoda-ku, Tokyo 101-1154, Japan.
Daiki TateyamaNipro Corporation, 3023 Noji-cho, Kusatsu, Shiga 525-0055, Japan.
Itsunari MinamiInstitute for Integrated Cell-Material Sciences (WPI-iCeMS), Kyoto University, Ushinomiya-cho, Yoshida, Sakyo-ku, Kyoto 606-8501, Japan.
Yoshihiro YoshikawaNipro Corporation, 3023 Noji-cho, Kusatsu, Shiga 525-0055, Japan.
Kazuhiro AibaInstitute for Integrated Cell-Material Sciences (WPI-iCeMS), Kyoto University, Ushinomiya-cho, Yoshida, Sakyo-ku, Kyoto 606-8501, Japan.
John E HeuserInstitute for Integrated Cell-Material Sciences (WPI-iCeMS), Kyoto University, Ushinomiya-cho, Yoshida, Sakyo-ku, Kyoto 606-8501, Japan.
Taito NishinoNissan Chemical Industries, Ltd., 3-7-1 Kanda Nishiki-cho, Chiyoda-ku, Tokyo 101-1154, Japan.
Kouichi HasegawaInstitute for Integrated Cell-Material Sciences (WPI-iCeMS), Kyoto University, Ushinomiya-cho, Yoshida, Sakyo-ku, Kyoto 606-8501, Japan ; Institute for Stem Cell Biology and Regenerative Medicine, National Centre for Biological Sciences, GKVK, Bellary Road, Bangalore 560065, India.
Norio NakatsujiInstitute for Integrated Cell-Material Sciences (WPI-iCeMS), Kyoto University, Ushinomiya-cho, Yoshida, Sakyo-ku, Kyoto 606-8501, Japan ; Institute for Frontier Medical Sciences, Kyoto University, 53 Kawahara-cho, Sakyo-ku, Kyoto 606-8507, Japan.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Utilizing human pluripotent stem cells (hPSCs) in cell-based therapy and drug discovery requires large-scale cell production. However, scaling up conventional adherent cultures presents challenges of maintaining a uniform high quality at low cost. In this regard, suspension cultures are a viable alternative, because they are scalable and do not require adhesion surfaces. 3D culture systems such as bioreactors can be exploited for large-scale production. However, the limitations of current suspension culture methods include spontaneous fusion between cell aggregates and suboptimal passaging methods by dissociation and reaggregation. 3D culture systems that dynamically stir carrier beads or cell aggregates should be refined to reduce shearing forces that damage hPSCs. Here, we report a simple 3D sphere culture system that incorporates mechanical passaging and functional polymers. This setup resolves major problems associated with suspension culture methods and dynamic stirring systems and may be optimal for applications involving large-scale hPSC production.

Indexed as

Cell Culture TechniquesEmbryonic Stem CellsHumansKaryotypingMicroscopy, Electron, TransmissionPluripotent Stem CellsPolymersTeratomaTranscription FactorsPolymersTranscription Factors

Identifiers

PMID24936458
PMCPMC4050473

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.