Evidence map›Paper›PMID 28581197›Full record

ArticleThe Laryngoscope2017

NR4A1 is an endogenous inhibitor of vocal fold fibrosis.

Nao Hiwatashi, Renjie Bing, Iv Kraja, Ryan C Branski

Open access · greenAbstract read
In one paragraph

Article in The Laryngoscope, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
0.6field-weighted citation impact, top 39% 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

12 citing papers in PubMed, 17 citations in OpenAlex.

  1. Preclinical Vocal Fold and Airway Injury Models: A Scoping Review.Laryngoscope investigative otolaryngology · 2025
    Review
  2. Article
  3. Balkan medical journal · 2024
    Article
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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

4 authors at 1 institution in 1 country.

Nao HiwatashiNew York University Voice Center, Department of Otolaryngology-Head and Neck Surgery, New York University School of Medicine, New York, New York, U.S.A.
Renjie BingNew York University Voice Center, Department of Otolaryngology-Head and Neck Surgery, New York University School of Medicine, New York, New York, U.S.A.
Iv KrajaNew York University Voice Center, Department of Otolaryngology-Head and Neck Surgery, New York University School of Medicine, New York, New York, U.S.A.
Ryan C BranskiNew York University Voice Center, Department of Otolaryngology-Head and Neck Surgery, New York University School of Medicine, New York, New York, U.S.A.ORCID 0000-0003-1190-9036
New York University · US

Funding

Optimal RNA-based therapeutics for vocal fold injury and fibrosisR01DC013277 · NIDCD · NEW YORK UNIVERSITY SCHOOL OF MEDICINE · PI BRANSKI, RYAN COMFORT · 2014 to 2018
$2.3M
NIDCD NIH HHS R01 DC013277
6 · The paper itself

Abstract

objectives/hypothesisNR4A1 was recently identified as an endogenous inhibitor of transforming growth factor (TGF)-β-induced fibrosis, and the role of this nuclear receptor has not been elucidated in tissue health or the response to injury in the vocal folds. Given the clinical implications of vocal fold fibrosis, we investigated NR4A1 expression during vocal fold wound healing in vivo and the regulatory roles of NR4A1 on vocal fold fibroblasts (VFFs) in vitro with the ultimate goal of developing targeted therapies for this challenging patient population. STUDY

designIn vivo and in vitro.

methodsIn vivo, the temporal pattern of NR4A1 mRNA expression was quantified following rat vocal fold injury. In vitro, the role of NR4A1 on TGF-β1-mediated transcription of genes underlying fibrosis as well as myofibroblast differentiation and collagen gel contraction was quantified in our human VFF line. Small interfering RNA was employed to alter NR4A1 expression to further elucidate this complex system.

resultsNr4a1 mRNA increased 1 day after injury and peaked at 7 days. Knockdown of NR4A1 resulted in upregulation of COL1A1 and TGF-β1, with TGF-β1 stimulation (both P < .001) in VFFs. NR4A1 knockdown also resulted in increased α-smooth muscle actin-positive cells (P = .013) and contraction (P = .002) in response to TGF-β1.

conclusionsNR4A1 has not been described in vocal fold health or disease. Upregulation of TGF-β following vocal fold injury was concurrent with increased NR4A1 expression. These data provide a foundation for the development of therapeutic strategies given persistent TGF-β signaling in vocal fold fibrosis. LEVEL OF EVIDENCE: N/A Laryngoscope, 127:E317-E323, 2017.

Indexed as

AnimalsCell LineCollagen Type ICollagen Type I, alpha 1 ChainDisease Models, AnimalFemaleFibrosisHumansMyofibroblastsNuclear Receptor Subfamily 4, Group A, Member 1RatsRats, Sprague-DawleyRNA, MessengerSignal TransductionTime FactorsTransforming Growth Factor beta1Collagen Type ICollagen Type I, alpha 1 ChainNr4a1 protein, ratNuclear Receptor Subfamily 4, Group A, Member 1RNA, MessengerTransforming Growth Factor beta1fibrosisNR4A1nuclear receptortransforming growth factor-βVocal foldvoice

Identifiers

PMID28581197
PMCPMC5568959
OpenAlexW2621442638

What OpenQuestion holds

Textmetadata
LicenceTDM
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.