Evidence map›Paper›PMID 27610270›Full record

ArticleBioResearch open access2016

Hepatic Differentiation of Human Induced Pluripotent Stem Cells in a Perfused Three-Dimensional Multicompartment Bioreactor.

Nora Freyer, Fanny Knöspel, Nadja Strahl, Leila Amini, Petra Schrade, Sebastian Bachmann, Georg Damm, Daniel Seehofer, Frank Jacobs, Mario Monshouwer and 1 more

Open access · diamondAbstract read
In one paragraph

Article in BioResearch open access, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
3.8field-weighted citation impact, top 6% 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

21 citing papers in PubMed, 47 citations in OpenAlex.

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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

11 authors at 3 institutions in 2 countries.

Nora FreyerBioreactor Group, Berlin Brandenburg Center for Regenerative Therapies (BCRT), Charité-Universitätsmedizin Berlin , Berlin, Germany .
Fanny KnöspelBioreactor Group, Berlin Brandenburg Center for Regenerative Therapies (BCRT), Charité-Universitätsmedizin Berlin , Berlin, Germany .
Nadja StrahlBioreactor Group, Berlin Brandenburg Center for Regenerative Therapies (BCRT), Charité-Universitätsmedizin Berlin , Berlin, Germany .
Leila AminiBioreactor Group, Berlin Brandenburg Center for Regenerative Therapies (BCRT), Charité-Universitätsmedizin Berlin , Berlin, Germany .
Petra SchradeCharité Centrum Grundlagenmedizin, Institut für Vegetative Anatomie, Charité-Universitätsmedizin Berlin , Berlin, Germany .
Sebastian BachmannCharité Centrum Grundlagenmedizin, Institut für Vegetative Anatomie, Charité-Universitätsmedizin Berlin , Berlin, Germany .
Georg DammDepartment of General-, Visceral- and Transplantation Surgery, Charité-Universitätsmedizin Berlin, Berlin, Germany.; Department of Hepatobiliary Surgery and Visceral Transplantation, University of Leipzig, Leipzig, Germany.
Daniel SeehoferDepartment of General-, Visceral- and Transplantation Surgery, Charité-Universitätsmedizin Berlin, Berlin, Germany.; Department of Hepatobiliary Surgery and Visceral Transplantation, University of Leipzig, Leipzig, Germany.
Frank JacobsJanssen Research and Development , Beerse, Belgium .
Mario MonshouwerJanssen Research and Development , Beerse, Belgium .
Katrin ZeilingerBioreactor Group, Berlin Brandenburg Center for Regenerative Therapies (BCRT), Charité-Universitätsmedizin Berlin , Berlin, Germany .
Berlin-Brandenburger Centrum für Regenerative Therapien · DECharité - Universitätsmedizin Berlin · DEJanssen (Belgium) · BE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The hepatic differentiation of human induced pluripotent stem cells (hiPSC) holds great potential for application in regenerative medicine, pharmacological drug screening, and toxicity testing. However, full maturation of hiPSC into functional hepatocytes has not yet been achieved. In this study, we investigated the potential of a dynamic three-dimensional (3D) hollow fiber membrane bioreactor technology to improve the hepatic differentiation of hiPSC in comparison to static two-dimensional (2D) cultures. A total of 100 × 10(6) hiPSC were seeded into each 3D bioreactor (n = 3). Differentiation into definitive endoderm (DE) was induced by adding activin A, Wnt3a, and sodium butyrate to the culture medium. For further maturation, hepatocyte growth factor and oncostatin M were added. The same differentiation protocol was applied to hiPSC maintained in 2D cultures. Secretion of alpha-fetoprotein (AFP), a marker for DE, was significantly (p < 0.05) higher in 2D cultures, while secretion of albumin, a typical characteristic for mature hepatocytes, was higher after hepatic differentiation of hiPSC in 3D bioreactors. Functional analysis of multiple cytochrome P450 (CYP) isoenzymes showed activity of CYP1A2, CYP2B6, and CYP3A4 in both groups, although at a lower level compared to primary human hepatocytes (PHH). CYP2B6 activities were significantly (p < 0.05) higher in 3D bioreactors compared with 2D cultures, which is in line with results from gene expression. Immunofluorescence staining showed that the majority of cells was positive for albumin, cytokeratin 18 (CK18), and hepatocyte nuclear factor 4-alpha (HNF4A) at the end of the differentiation process. In addition, cytokeratin 19 (CK19) staining revealed the formation of bile duct-like structures in 3D bioreactors similar to native liver tissue. The results indicate a better maturation of hiPSC in the 3D bioreactor system compared to 2D cultures and emphasize the potential of dynamic 3D culture systems in stem cell differentiation approaches for improved formation of differentiated tissue structures.

Indexed as

stem cellstissue engineering

Identifiers

PMID27610270
PMCPMC5003005
OpenAlexW2513501421

What OpenQuestion holds

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LicenceCC BY
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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.