Evidence map›Paper›PMID 21953612›Full record

ArticleDiabetes2011

Specific control of pancreatic endocrine β- and δ-cell mass by class IIa histone deacetylases HDAC4, HDAC5, and HDAC9.

Olivia Lenoir, Kathleen Flosseau, Feng Xia Ma, Bertrand Blondeau, Antonello Mai, Rhonda Bassel-Duby, Philippe Ravassard, Eric N Olson, Cécile Haumaitre, Raphaël Scharfmann

Open access · greenAbstract 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 76 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
76citing papers in PubMed, 2 pooled it
8.8field-weighted citation impact, top 2% 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

76 citing papers in PubMed, 2 syntheses or guidelines pooled it, 144 citations in OpenAlex.

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16 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

10 authors at 7 institutions in 3 countries.

Olivia LenoirInstitut National de la Santé et de la Recherche Médicale, U845, Research Center Growth and Signalling, Paris Descartes University, Sorbonne Paris Cité, Necker Hospital, Paris, France.
Kathleen Flosseau
Feng Xia Ma
Bertrand Blondeau
Antonello Mai
Rhonda Bassel-Duby
Philippe Ravassard
Eric N Olson
Cécile Haumaitre
Raphaël Scharfmann
Inserm · FRThe University of Texas Southwestern Medical Center · USDélégation Paris 5 · FRSapienza University of Rome · ITSorbonne Paris Cité · FRSorbonne Université · FRUniversité Paris Cité · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveClass IIa histone deacetylases (HDACs) belong to a large family of enzymes involved in protein deacetylation and play a role in regulating gene expression and cell differentiation. Previously, we showed that HDAC inhibitors modify the timing and determination of pancreatic cell fate. The aim of this study was to determine the role of class IIa HDACs in pancreas development. RESEARCH DESIGN AND

methodsWe took a genetic approach and analyzed the pancreatic phenotype of mice lacking HDAC4, -5, and -9. We also developed a novel method of lentiviral infection of pancreatic explants and performed gain-of-function experiments.

resultsWe show that class IIa HDAC4, -5, and -9 have an unexpected restricted expression in the endocrine β- and δ-cells of the pancreas. Analyses of the pancreas of class IIa HDAC mutant mice revealed an increased pool of insulin-producing β-cells in Hdac5(-/-) and Hdac9(-/-) mice and an increased pool of somatostatin-producing δ-cells in Hdac4(-/-) and Hdac5(-/-) mice. Conversely, HDAC4 and HDAC5 overexpression showed a decreased pool of insulin-producing β-cells and somatostatin-producing δ-cells. Finally, treatment of pancreatic explants with the selective class IIa HDAC inhibitor MC1568 enhances expression of Pax4, a key factor required for proper β-and δ-cell differentiation and amplifies endocrine β- and δ-cells.

conclusionsWe conclude that HDAC4, -5, and -9 are key regulators to control the pancreatic β/δ-cell lineage. These results highlight the epigenetic mechanisms underlying the regulation of endocrine cell development and suggest new strategies for β-cell differentiation-based therapies.

Indexed as

AlgorithmsAnimalsAnimals, NewbornCell DifferentiationEmbryo, MammalianEnzyme InhibitorsGene Expression Regulation, DevelopmentalHistone DeacetylasesHomeodomain ProteinsInsulinInsulin-Secreting CellsIsoenzymesMiceMice, Mutant StrainsOrgan SizeOrgan SpecificityEnzyme InhibitorsHdac5 protein, mouseHdac9 protein, mouseHistone DeacetylasesHomeodomain ProteinsInsulinIsoenzymesPaired Box Transcription FactorsPax4 protein, mouseRepressor ProteinsRNA, MessengerSomatostatin

Identifiers

PMID21953612
PMCPMC3198089
OpenAlexW2152483590

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.