Evidence map›Paper›PMID 21969560›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2011

Elevated Hedgehog/Gli signaling causes beta-cell dedifferentiation in mice.

Limor Landsman, Audrey Parent, Matthias Hebrok

Open access · bronzeAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 53 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
53citing papers in PubMed, 1 pooled it
4.1field-weighted citation impact, top 7% 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

53 citing papers in PubMed, 1 synthesis or guideline pooled it, 77 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Review
  4. Article
  5. Article
  6. Article
  7. Review
  8. Article
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  11. Article
  12. Article
  13. Article
  14. Rediscovering Primary Cilia in Pancreatic Islets.Diabetes & metabolism journal · 2023
    Review
  15. Review
  16. Article
  17. Review
  18. Pancreatic β-Cell Development and Regeneration.Cold Spring Harbor perspectives in biology · 2022
    Review
  19. Review
  20. Review
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

3 authors at 1 institution in 1 country.

Limor LandsmanDiabetes Center, Department of Medicine, University of California, San Francisco, CA 94143, USA.
Audrey Parent
Matthias Hebrok
University of California, San Francisco · US

Funding

Research BaseP30DK063720 · NIDDK · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI KRUMMEL, MATTHEW F · 2003 to 2019
$21.8M
Effects of Hedgehog Signaling on Pancreas OrganogenesisR01DK060533 · NIDDK · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI HEBROK, MATTHIAS · 2003 to 2012
$3.3M
NIDDK NIH HHS DK60533NIDDK NIH HHS P30 DK063720NIDDK NIH HHS P30 DK63720NIDDK NIH HHS R01 DK060533
6 · The paper itself

Abstract

Although Hedgehog (Hh) signaling regulates cell differentiation during pancreas organogenesis, the consequences of pathway up-regulation in adult β-cells in vivo have not been investigated. Here, we elevate Hh signaling in β-cells by expressing an active version of the GLI2 transcription factor, a mediator of the Hh pathway, in β-cells that are also devoid of primary cilia, a critical regulator of Hh activity. We show that increased Hh signaling leads to impaired β-cell function and insulin secretion, resulting in glucose intolerance in transgenic mice. This phenotype was accompanied by reduced expression of both genes critical for β-cell function and transcription factors associated with their mature phenotype. Increased Hh signaling further correlated with increased expression of the precursor cell markers Hes1 and Sox9, both direct Hh targets that are normally excluded from β-cells. Over time, the majority of β-cells down-regulated GLI2 levels, thereby regaining the full differentiation state and restoring normoglycemia in transgenic mice. However, sustained high Hh levels in some insulin-producing cells further eroded the β-cell identity and eventually led to the development of undifferentiated pancreatic tumors. Summarily, our results indicate that deregulation of the Hh pathway impairs β-cell function by interfering with the mature β-cell differentiation state.

Indexed as

AnimalsCell DedifferentiationCiliaGlucose IntoleranceHedgehog ProteinsHomeodomain ProteinsInsulin-Secreting CellsKruppel-Like Transcription FactorsMaleMiceMice, TransgenicNuclear ProteinsPancreatic NeoplasmsRecombinant ProteinsSignal TransductionSOX9 Transcription FactorGLI2 protein, humanHedgehog ProteinsHomeodomain ProteinsKruppel-Like Transcription FactorsNuclear Proteinspancreatic and duodenal homeobox 1 proteinRecombinant ProteinsSox9 protein, mouseSOX9 Transcription FactorTrans-ActivatorsTranscription FactorsZinc Finger Protein Gli2

Identifiers

PMID21969560
PMCPMC3193206
OpenAlexW1992106677

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.