Evidence map›Paper›PMID 25988619›Full record

ArticleThe Laryngoscope2015

Identification of distinct layers within the stratified squamous epithelium of the adult human true vocal fold.

Jayme R Dowdall, Peter M Sadow, Christopher Hartnick, Vladimir Vinarsky, Hongmei Mou, Rui Zhao, Phillip C Song, Ramon A Franco, Jayaraj Rajagopal

Abstract read
In one paragraph

Article in The Laryngoscope, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
2.2field-weighted citation impact, top 12% 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

17 citing papers in PubMed, 28 citations in OpenAlex.

  1. Article
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  3. Proceedings of the National Academy of Sciences of the United States of America · 2025
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  9. Hydrogel-Supported, Engineered Model of Vocal Fold Epithelium.ACS biomaterials science & engineering · 2021
    Article
  10. Article
  11. Article
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  14. Apoptosis and Vocal Fold Disease: Clinically Relevant Implications of Epithelial Cell Death.Journal of speech, language, and hearing research : JSLHR · 2017
    Review
  15. Review
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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

9 authors at 3 institutions in 1 country.

Jayme R DowdallDepartment of Otolaryngology, Harvard Medical School.
Peter M SadowDepartments of Pathology, Massachusetts General Hospital and Harvard Medical School.
Christopher HartnickDepartment of Otolaryngology, Harvard Medical School.
Vladimir VinarskyCenter for Regenerative Medicine.
Hongmei MouCenter for Regenerative Medicine.
Rui ZhaoCenter for Regenerative Medicine.
Phillip C SongDepartment of Otolaryngology, Harvard Medical School.
Ramon A FrancoDepartment of Otolaryngology, Harvard Medical School.
Jayaraj RajagopalDepartment of Otolaryngology, Harvard Medical School.
Massachusetts Eye and Ear Infirmary · USMassachusetts General Hospital · USBrigham and Women's Hospital · US

Funding

Progenitor Cell Biology Consortium Administrative Coordinating CenterU01HL099997 · NHLBI · UNIVERSITY OF MARYLAND BALTIMORE · PI TERRIN, MICHAEL L · 2009 to 2015
$29.9M
Defining the role of Hippo signaling in airway injury repair and remodelingR01HL116756 · NHLBI · MASSACHUSETTS GENERAL HOSPITAL · PI RAJAGOPAL, JAYARAJ · 2013 to 2017
$2.2M
Center for Regenerative Medicine (CRM) Support for New Faculty MemberP30HL101287 · NHLBI · MASSACHUSETTS GENERAL HOSPITAL · PI SCADDEN, DAVID T · 2009 to 2010
$1.5M
NHLBI NIH HHS 1R01HL116756-01ANHLBI NIH HHS 5P30HL101287-02NHLBI NIH HHS 5U01HL099997-04NHLBI NIH HHS P30 HL101287NHLBI NIH HHS R01 HL116756NHLBI NIH HHS U01 HL099997
6 · The paper itself

Abstract

objectives/hypothesisA precise molecular schema for classifying the different cell types of the normal human vocal fold epithelium is lacking. We hypothesize that the true vocal fold epithelium has a cellular architecture and organization similar to that of other stratified squamous epithelia including the skin, cornea, oral mucosa, and esophagus. In analogy to disorders of the skin and gastrointestinal tract, a molecular definition of the normal cell types within the human vocal fold epithelium and a description of their geometric relationships should serve as a foundation for characterizing cellular changes associated with metaplasia, dysplasia, and cancer. STUDY

designQualitative study with adult human larynges.

methodsHistologic sections of normal human laryngeal tissue were analyzed for morphology (hematoxylin and eosin) and immunohistochemical protein expression profile, including cytokeratins (CK13 and CK14), cornified envelope proteins (involucrin), basal cells (NGFR/p75), and proliferation markers (Ki67).

resultsWe demonstrated that three distinct cell strata with unique marker profiles are present within the stratified squamous epithelium of the true vocal fold. We used these definitions to establish that cell proliferation is restricted to certain cell types and layers within the epithelium. These distinct cell types are reproducible across five normal adult larynges.

conclusionWe have established that three layers of cells are present within the normal adult stratified squamous epithelium of the true vocal fold. Furthermore, replicating cell populations are largely restricted to the parabasal strata within the epithelium. This delineation of distinct cell populations will facilitate future studies of vocal fold regeneration and cancer. LEVEL OF EVIDENCE: N/A.

Indexed as

AdultAnimalsCell ProliferationEpithelial CellsFemaleHumansImmunohistochemistryKeratin-13Keratin-14Ki-67 AntigenLaryngeal MucosaMaleMiceProtein PrecursorsRabbitsRatsinvolucrinKeratin-13Keratin-14Ki-67 AntigenProtein Precursorsbasal cellbiomarkerscytokeratindifferentiationepitheliumhistologyinvolucrinlarynxproliferationstratified squamoustrue vocal cordVocal fold

Identifiers

PMID25988619
PMCPMC4910522
OpenAlexW1894759568

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.