Evidence map›Paper›PMID 17848139›Full record

ArticleThe Biochemical journal2007

The epigenetic signature of CFTR expression is co-ordinated via chromatin acetylation through a complex intronic element.

Thankam Paul, SiDe Li, Sanjeev Khurana, Neal S Leleiko, Martin J Walsh

Open access · greenAbstract read
In one paragraph

Article in The Biochemical journal, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
1.5field-weighted citation impact, top 17% 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

22 citing papers in PubMed, 30 citations in OpenAlex.

  1. Review
  2. Tissue-Specific Regulation ofInternational journal of molecular sciences · 2023
    Review
  3. Review
  4. International journal of molecular sciences · 2021
    Article
  5. Article
  6. Review
  7. MicroRNAs and Long Non-coding RNAs in Genetic Diseases.Molecular diagnosis & therapy · 2019
    Review
  8. Cftr Modulates Wnt/β-Catenin Signaling and Stem Cell Proliferation in Murine Intestine.Cellular and molecular gastroenterology and hepatology · 2018
    Article
  9. Article
  10. Article
  11. Long Non-coding RNA BGas Regulates the Cystic Fibrosis Transmembrane Conductance Regulator.Molecular therapy : the journal of the American Society of Gene Therapy · 2016
    Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Histone deacetylase: a potential therapeutic target for fibrotic disorders.The Journal of pharmacology and experimental therapeutics · 2010
    Review
  18. Article
  19. Article
  20. Article
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

5 authors at 2 institutions in 1 country.

Thankam PaulDepartment of Pediatrics, Mount Sinai School of Medicine, One Gustave L. Levy Place, New York, NY 10029, USA.
SiDe Li
Sanjeev Khurana
Neal S Leleiko
Martin J Walsh
Mount Sinai Hospital · USHasbro Children's Hospital · US

Funding

Regulation of CFTR gene expressionR01HL067099 · NHLBI · MOUNT SINAI SCHOOL OF MEDICINE OF NYU · PI WALSH, MARTIN JOHN · 2001 to 2004
$1.2M
NHLBI NIH HHS HL067099NHLBI NIH HHS R01 HL067099
6 · The paper itself

Abstract

The CFTR (cystic fibrosis transmembrane conductance regulator) gene is a tightly regulated and differentially expressed transcript in many mucosal epithelial cell types. It appears that DNA sequence variations alone do not explain CFTR-related gastrointestinal disease patterns and that epigenetic modifiers influence CFTR expression. Our aim was to characterize the native chromatin environment in cultured cells for intestinal CFTR expression by determining the relationship between histone acetylation and occupation of CFTR by multiple transcription factors, through a common regulatory element. We used HDAC (histone deacetylase) inhibition and ChIP (chromatin immunoprecipitation) analyses to define regions associated with acute acetylation of histone at the CFTR locus. We identified a region within the first intron associated with acute acetylation of histone H4 as an epigenetic signature corresponding to an intestine-specific enhancer element for CFTR. DHS (DNase I-hypersensitivity) assays and ChIP were used to specify control elements and occupation by regulatory factors. Quantitative ChIP procedures indicate that HNF1alpha (hepatic nuclear factor 1alpha) and Cdx2 (caudal homeobox protein 2) occupy and regulate through a novel intronic enhancer element of CFTR and that Tcf4 (T-cell factor 4) overlaps the same DNA element. RNAi (RNA interference) of Tcf4 and HNF1alpha decreased intestinal cell CFTR expression, identifying these as positive regulatory factors and CFTR as a target for Wnt signalling. We have linked the acetylation signature of nucleosomal histones to active intestinal CFTR expression and occupation by transcription factors HNF1alpha, Cdx2 and Tcf4 which converge to modify chromatin architecture. These studies suggest the therapeutic potential of histone modification strategies, such as inhibition of HDAC activity, to treat CFTR-associated disease by selectively enhancing CFTR expression.

Indexed as

Epigenesis, GeneticIntronsAcetylationBase SequenceCell Line, TumorChromatinChromatin ImmunoprecipitationCystic Fibrosis Transmembrane Conductance RegulatorDNA PrimersHistone Deacetylase InhibitorsHumansIntestinal MucosaRNA InterferenceTranscription FactorsChromatinCystic Fibrosis Transmembrane Conductance RegulatorDNA PrimersHistone Deacetylase InhibitorsTranscription Factors

Identifiers

PMID17848139
PMCPMC2267364
OpenAlexW2037445818

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.