Evidence map›Paper›PMID 21075858›Full record

ArticleThe American journal of pathology2010

Plakoglobin rescues adhesive defects induced by ectodomain truncation of the desmosomal cadherin desmoglein 1: implications for exfoliative toxin-mediated skin blistering.

Cory L Simpson, Shin-ichiro Kojima, Victoria Cooper-Whitehair, Spiro Getsios, Kathleen J Green

Open access · bronzeAbstract read
In one paragraph

Article in The American journal of pathology, 2010. 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
1.7field-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, 38 citations in OpenAlex.

  1. Article
  2. Crosstalk in Skin: Loss of Desmoglein 1 in Keratinocytes Inhibits BRAFThe Journal of investigative dermatology · 2025
    Article
  3. Review
  4. Article
  5. Article
  6. Article
  7. Damaged Keratin Filament Network Caused byFrontiers in genetics · 2021
    Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Review
  15. Article
  16. Article
  17. Desmosome assembly and dynamics.Trends in cell biology · 2013
    Review
  18. Article
  19. Review
  20. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

5 authors at 2 institutions in 2 countries.

Cory L SimpsonDepartment of Pathology, Northwestern University Feinberg School of Medicine, 303 E. Chicago Ave., Chicago, IL 60611, USA.
Shin-ichiro Kojima
Victoria Cooper-Whitehair
Spiro Getsios
Kathleen J Green
Northwestern University · USInstitute of Molecular and Cell Biology · RU

Funding

Tumor Environment and Metastasis (TEAM) Research ProgramP30CA060553 · NCI · NORTHWESTERN UNIVERSITY AT CHICAGO · PI Daniela E Matei · 1993 to 2026
$153.9M
MOLECULAR GENETICS OF PEMPHIGUS FOLIACEUS ANTIGENR01AR041836 · NIAMS · NORTHWESTERN UNIVERSITY AT CHICAGO · PI Kathleen Janee Green · 1993 to 2026
$11.8M
The Role of Keratinocytes as Independent ThermosensorsP30AR057216 · NIAMS · NORTHWESTERN UNIVERSITY AT CHICAGO · PI PEREZ WHITE, BETHANY E · 2009 to 2018
$6.0M
Regulation of Desmosomal Cadherins in Oral CancerR01CA122151 · NCI · NORTHWESTERN UNIVERSITY AT CHICAGO · PI GREEN, KATHLEEN JANEE · 2006 to 2016
$2.6M
Exfoliative toxin A and desmosomal adhesion in epidermisF30ES014990 · NIEHS · NORTHWESTERN UNIVERSITY AT CHICAGO · PI SIMPSON, CORY L · 2006 to 2009
$148k
NCI NIH HHS P30 CA060553NCI NIH HHS P30-CA060553NCI NIH HHS R01 CA122151NCI NIH HHS R01-CA122151NIAMS NIH HHS P30 AR057216NIAMS NIH HHS P30-AR057216NIAMS NIH HHS R01 AR041836NIAMS NIH HHS R01-AR041836NIEHS NIH HHS F30 ES014990NIEHS NIH HHS F30-ES014990
6 · The paper itself

Abstract

Desmoglein 1 (Dsg1) is a desmosomal cadherin that is essential to epidermal integrity. In the blistering diseases bullous impetigo and staphylococcal scalded-skin syndrome, pathogenesis depends on cleavage of Dsg1 by a bacterial protease, exfoliative toxin A, which removes residues 1 to 381 of the Dsg1 ectodomain. However, the cellular responses to Dsg1 cleavage that precipitate keratinocyte separation to induce blister formation are unknown. Here, we show that ectodomain-deleted Dsg1 (Δ381-Dsg1) mimics the toxin-cleaved cadherin, disrupts desmosomes, and reduces the mechanical integrity of keratinocyte sheets. In addition, we demonstrate that truncated Dsg1 remains associated with its catenin partner, plakoglobin, and causes a reduction in the levels of endogenous desmosomal cadherins in a dose-dependent manner, leading us to hypothesize that plakoglobin sequestration by truncated Dsg1 destabilizes other cadherins. Accordingly, a triple-point mutant of the ectodomain-deleted cadherin, which is uncoupled from plakoglobin, does not impair adhesion, indicating that this interaction is essential to the pathogenic potential of truncated Dsg1. Moreover, we demonstrate that increasing plakoglobin levels rescues cadherin expression, desmosome organization, and functional adhesion in cells expressing Δ381-Dsg1 or treated with exfoliative toxin A. Finally, we report that histone deacetylase inhibition up-regulates desmosomal cadherins and prevents the loss of adhesion induced by Dsg1 truncation. These findings further our understanding of the mechanism of exfoliative toxin-induced pathology and suggest novel strategies to suppress blistering in bulbous impetigo and staphylococcal scalded-skin syndrome.

Indexed as

BlisterCell AdhesionCells, CulturedDermatitis, ExfoliativeDesmoglein 1Desmosomal CadherinsExfoliatinsgamma CateninHumansKeratinocytesProtein Interaction Domains and MotifsProtein Processing, Post-TranslationalSequence DeletionSkinStaphylococcal Skin InfectionsTransduction, GeneticDesmoglein 1Desmosomal CadherinsDSG1 protein, humanExfoliatinsgamma Catenin

Identifiers

PMID21075858
PMCPMC2993287
OpenAlexW32765225

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.