Evidence map›Paper›PMID 20971966›Full record

ArticleDiabetes2011

Production of functional glucagon-secreting α-cells from human embryonic stem cells.

Alireza Rezania, Michael J Riedel, Rhonda D Wideman, Francis Karanu, Ziliang Ao, Garth L Warnock, Timothy J Kieffer

Open access · bronzeAbstract read
In one paragraph

Article in Diabetes, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 112 papers.

0numbers the graph read from it
0cells of the map it votes in
112citing papers in PubMed
17.5field-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

112 citing papers in PubMed, 229 citations in OpenAlex.

  1. Article
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  9. The human α cell in health and disease.The Journal of endocrinology · 2023
    Review
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  11. Article
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  18. Review
  19. Adapting Physiology in Functional Human Islet Organogenesis.Frontiers in cell and developmental biology · 2022
    Article
  20. Review

52 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

7 authors at 1 institution in 1 country.

Alireza RezaniaBetaLogics Venture, Centocor Research and Development, Skillman, New Jersey, USA.
Michael J Riedel
Rhonda D Wideman
Francis Karanu
Ziliang Ao
Garth L Warnock
Timothy J Kieffer
University of British Columbia · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveDifferentiation of human embryonic stem (hES) cells to fully developed cell types holds great therapeutic promise. Despite significant progress, the conversion of hES cells to stable, fully differentiated endocrine cells that exhibit physiologically regulated hormone secretion has not yet been achieved. Here we describe an efficient differentiation protocol for the in vitro conversion of hES cells to functional glucagon-producing α- cells. RESEARCH DESIGN AND

methodsUsing a combination of small molecule screening and empirical testing, we developed a six-stage differentiation protocol for creating functional α-cells. An extensive in vitro and in vivo characterization of the differentiated cells was performed.

resultsA high rate of synaptophysin expression (>75%) and robust expression of glucagon and the α-cell transcription factor ARX was achieved. After a transient polyhormonal state in which cells coexpress glucagon and insulin, maturation in vitro or in vivo resulted in depletion of insulin and other β-cell markers with concomitant enrichment of α-cell markers. After transplantation, these cells secreted fully processed, biologically active glucagon in response to physiologic stimuli including prolonged fasting and amino acid challenge. Moreover, glucagon release from transplanted cells was sufficient to reduce demand for pancreatic glucagon, resulting in a significant decrease in pancreatic α-cell mass.

conclusionsThese results indicate that fully differentiated pancreatic endocrine cells can be created via stepwise differentiation of hES cells. These cells may serve as a useful screening tool for the identification of compounds that modulate glucagon secretion as well as those that promote the transdifferentiation of α-cells to β-cells.

Indexed as

AnimalsBlood GlucoseCell DifferentiationCell LineDNAEmbryonic Stem CellsGlucagonGlucagon-Secreting CellsHumansImmunohistochemistryInsulinIslets of LangerhansMiceProglucagonReverse Transcriptase Polymerase Chain ReactionBlood GlucoseDNAGlucagonInsulinProglucagon

Identifiers

PMID20971966
PMCPMC3012176
OpenAlexW2134202966

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.