Evidence map›Paper›PMID 22194996›Full record

ArticlePloS one2011

MicroRNA-449a overexpression, reduced NOTCH1 signals and scarce goblet cells characterize the small intestine of celiac patients.

Marina Capuano, Laura Iaffaldano, Nadia Tinto, Donatella Montanaro, Valentina Capobianco, Valentina Izzo, Francesca Tucci, Giancarlo Troncone, Luigi Greco, Lucia Sacchetti

Erratum issuedOpen access · goldAbstract read
In one paragraph

Article in PloS one, 2011. 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 52 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
52citing papers in PubMed, 3 pooled it
4.0field-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

52 citing papers in PubMed, 3 syntheses or guidelines pooled it, 99 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Trial
  5. Review
  6. Intestinal stem cell niche: An upcoming area of immense importance in gastrointestinal disorders.Indian journal of gastroenterology : official journal of the Indian Society of Gastroenterology · 2025
    Review
  7. Review
  8. Review
  9. Article
  10. The protective role ofFrontiers in medicine · 2023
    Article
  11. Article
  12. Review
  13. Celiac disease: From genetics to epigenetics.World journal of gastroenterology · 2022
    Review
  14. Article
  15. Article
  16. Article
  17. Molecular Biomarkers for Celiac Disease: Past, Present and Future.International journal of molecular sciences · 2020
    Review
  18. Review
  19. Review
  20. Dietary Gluten and Neurodegeneration: A Case for Preclinical Studies.International journal of molecular sciences · 2020
    Review
4 · The record

Corrections and comments

  • Erratum issued
5 · Who and what money

Authors and funding

10 authors at 2 institutions in 1 country.

Marina CapuanoCEINGE (Centro di Ingegneria Genetica) Advanced Biotechnology, s. c. a r. l., Naples, Italy.
Laura Iaffaldano
Nadia Tinto
Donatella Montanaro
Valentina Capobianco
Valentina Izzo
Francesca Tucci
Giancarlo Troncone
Luigi Greco
Lucia Sacchetti
University of Naples Federico II · ITSDN Istituto di Ricerca Diagnostica e Nucleare · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

MiRNAs play a relevant role in regulating gene expression in a variety of physiological and pathological conditions including autoimmune disorders. MiRNAs are also important in the differentiation and function of the mouse intestinal epithelium. Our study was aimed to look for miRNA-based modulation of gene expression in celiac small intestine, and particularly for genes involved in cell intestinal differentiation/proliferation mechanisms. A cohort of 40 children (20 with active CD, 9 on a gluten-free diet (GFD), and 11 controls), were recruited at the Paediatrics Department (University of Naples Federico II). The expression of 365 human miRNAs was quantified by TaqMan low-density arrays. We used bioinformatics to predict putative target genes of miRNAs and to select biological pathways. The presence of NOTCH1, HES1, KLF4, MUC-2, Ki67 and beta-catenin proteins in the small intestine of CD and control children was tested by immunohistochemistry. The expression of about 20% of the miRNAs tested differed between CD and control children. We found that high miR-449a levels targeted and reduced both NOTCH1 and KLF4 in HEK-293 cells. NOTCH1, KLF4 signals and the number of goblet cells were lower in small intestine of children with active CD and in those on a GFD than in controls, whereas more nuclear beta-catenin staining, as a sign of the WNT pathway activation, and more Ki67 staining, as sign of proliferation, were present in crypts from CD patients than in controls. In conclusion we first demonstrate a miRNA mediated gene regulation in small intestine of CD patients. We also highlighted a reduced NOTCH1 pathway in our patients, irrespective of whether the disease was active or not. We suggest that NOTCH pathway could be constitutively altered in the celiac small intestine and could drive the increased proliferation and the decreased differentiation of intestinal cells towards the secretory goblet cell lineage.

Indexed as

Signal Transduction3' Untranslated RegionsAnimalsBasic Helix-Loop-Helix Proteinsbeta CateninCase-Control StudiesCeliac DiseaseCell CountChildChild, PreschoolComputational BiologyDiet, Gluten-FreeFemaleGene Expression ProfilingGene Expression RegulationGoblet Cells3' Untranslated RegionsBasic Helix-Loop-Helix Proteinsbeta CateninHES1 protein, humanHomeodomain ProteinsKLF4 protein, humanKlf4 protein, mouseKruppel-Like Factor 4Kruppel-Like Transcription FactorsMicroRNAsMIRN449 microRNA, humanMucin-2NOTCH1 protein, humanReceptor, Notch1Transcription Factor HES-1

Identifiers

PMID22194996
PMCPMC3240641
OpenAlexW1978575041

What OpenQuestion holds

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Registered trials

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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.