Evidence map›Paper›PMID 17668046›Full record

ArticlePloS one2007

A unique role for nonmuscle myosin heavy chain IIA in regulation of epithelial apical junctions.

Andrei I Ivanov, Moshe Bachar, Brian A Babbin, Robert S Adelstein, Asma Nusrat, Charles A Parkos

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 102 papers.

0numbers the graph read from it
0cells of the map it votes in
102citing papers in PubMed
8.0field-weighted citation impact, top 3% 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

102 citing papers in PubMed, 171 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Non-Muscle Myosin II A: Friend or Foe in Cancer?International journal of molecular sciences · 2024
    Review
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Review
  16. A myosin chaperone, UNC-45A, is a novel regulator of intestinal epithelial barrier integrity and repair.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2022
    Article
  17. Article
  18. Article
  19. Article
  20. Review

42 more citing papers are in PubMed but not listed here.

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

6 authors at 2 institutions in 1 country.

Andrei I IvanovEpithelial Pathobiology Research Unit, Department of Pathology and Laboratory Medicine, Emory University, Atlanta, Georgia, United States of America. aiivano@emory.edu
Moshe Bachar
Brian A Babbin
Robert S Adelstein
Asma Nusrat
Charles A Parkos
Emory University · USNational Heart Lung and Blood Institute · US

Funding

Regulation of intestinal epithelial barrier function by intercellular junction proteins in health and diseaseR01DK059888 · NIDDK · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI ASMA NUSRAT · 2001 to 2026
$10.5M
Intestinal Mucosal Wound Resealing in IBDR01DK055679 · NIDDK · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI ASMA NUSRAT · 2004 to 2026
$8.1M
Neutrophil Interactions with Intestinal Epithelial CellsR01DK072564 · NIDDK · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI PARKOS, CHARLES A · 2005 to 2020
$6.5M
Structure-Function Studies on Intestinal Epithelial JAMR01DK061379 · NIDDK · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI PARKOS, CHARLES A · 2002 to 2021
$6.3M
Emory Epithelial Pathobiology Research Development CenterR24DK064399 · NIDDK · EMORY UNIVERSITY · PI PARKOS, CHARLES A · 2003 to 2012
$5.3M
Role of signal regulatory protein in neutrophil functionR01HL072124 · NHLBI · EMORY UNIVERSITY · PI PARKOS, CHARLES A · 2003 to 2006
$1.5M
In Vivo Function of Nonmuscle Myosin II-AZ01HL004218 · NHLBI · NATIONAL HEART, LUNG, AND BLOOD INSTITUTE · PI ADELSTEIN, ROBERT · 1991 to 2008
$826k
INTESTINAL MUCOSAL WOUND RESEALING IN SURGICAL DISEASESR29DK055679 · NIDDK · EMORY UNIVERSITY · PI NUSRAT, ASMA · 1998 to 2002
$324k
NHLBI NIH HHS HL72124NHLBI NIH HHS R01 HL072124NIDDK NIH HHS DK 55679NIDDK NIH HHS DK 59888NIDDK NIH HHS DK 61379NIDDK NIH HHS DK 72564NIDDK NIH HHS R01 DK055679NIDDK NIH HHS R01 DK059888NIDDK NIH HHS R01 DK061379NIDDK NIH HHS R01 DK072564NIDDK NIH HHS R24 DK064399NIDDK NIH HHS R29 DK055679
6 · The paper itself

Abstract

The integrity and function of the epithelial barrier is dependent on the apical junctional complex (AJC) composed of tight and adherens junctions and regulated by the underlying actin filaments. A major F-actin motor, myosin II, was previously implicated in regulation of the AJC, however direct evidence of the involvement of myosin II in AJC dynamics are lacking and the molecular identity of the myosin II motor that regulates formation and disassembly of apical junctions in mammalian epithelia is unknown. We investigated the role of nonmuscle myosin II (NMMII) heavy chain isoforms, A, B, and C in regulation of epithelial AJC dynamics and function. Expression of the three NMMII isoforms was observed in model intestinal epithelial cell lines, where all isoforms accumulated within the perijunctional F-actin belt. siRNA-mediated downregulation of NMMIIA, but not NMMIIB or NMMIIC expression in SK-CO15 colonic epithelial cells resulted in profound changes of cell morphology and cell-cell adhesions. These changes included acquisition of a fibroblast-like cell shape, defective paracellular barrier, and substantial attenuation of the assembly and disassembly of both adherens and tight junctions. Impaired assembly of the AJC observed after NMMIIA knock-down involved dramatic disorganization of perijunctional actin filaments. These findings provide the first direct non-pharmacological evidence of myosin II-dependent regulation of AJC dynamics in mammalian epithelia and highlight a unique role of NMMIIA in junctional biogenesis.

Indexed as

Cell AdhesionCell Line, TumorCell PolarityDNA PrimersDown-RegulationEpithelial CellsGene SilencingHeterocyclic Compounds, 4 or More RingsHumansIntercellular JunctionsIntestinal MucosaMyosin Heavy ChainsPolymerase Chain ReactionProtein IsoformsRNA, Small InterferingblebbistatinDNA PrimersHeterocyclic Compounds, 4 or More RingsMyosin Heavy ChainsProtein IsoformsRNA, Small Interfering

Identifiers

PMID17668046
PMCPMC1920554
OpenAlexW2002167899

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.