Evidence map›Paper›PMID 31871203›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2020

Actin protrusions push at apical junctions to maintain E-cadherin adhesion.

John Xiao He Li, Vivian W Tang, William M Brieher

Open access · bronzeAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 43 papers.

0numbers the graph read from it
0cells of the map it votes in
43citing papers in PubMed
4.7field-weighted citation impact, top 4% 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

43 citing papers in PubMed, 89 citations in OpenAlex.

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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

3 authors at 1 institution in 1 country.

John Xiao He LiDepartment of Cell and Developmental Biology, University of Illinois at Urbana-Champaign, Urbana, IL 61801.
Vivian W TangDepartment of Cell and Developmental Biology, University of Illinois at Urbana-Champaign, Urbana, IL 61801.
William M BrieherDepartment of Cell and Developmental Biology, University of Illinois at Urbana-Champaign, Urbana, IL 61801 wbrieher@illinois.edu.ORCID 0000-0002-3168-6688
University of Illinois Urbana-Champaign · US

Funding

Actin Assembly at Cadherin Dependent Adherens JunctionsR01GM106106 · NIGMS · UNIVERSITY OF ILLINOIS AT URBANA-CHAMPAIGN · PI BRIEHER, WILLIAM · 2013 to 2022
$2.6M
Disrupting FSGS1-associated Actin Assembly in GlomerulosclerosisR01DK098398 · NIDDK · UNIVERSITY OF ILLINOIS AT URBANA-CHAMPAIGN · PI TANG, VIVIAN · 2013 to 2017
$1.4M
NIDDK NIH HHS R01 DK098398NIGMS NIH HHS R01 GM106106
6 · The paper itself

Abstract

Cadherin-mediated cell-cell adhesion is actin-dependent, but the precise role of actin in maintaining cell-cell adhesion is not fully understood. Actin polymerization-dependent protrusive activity is required to push distally separated cells close enough to initiate contact. Whether protrusive activity is required to maintain adhesion in confluent sheets of epithelial cells is not known. By electron microscopy as well as live cell imaging, we have identified a population of protruding actin microspikes that operate continuously near apical junctions of polarized Madin-Darby canine kidney (MDCK) cells. Live imaging shows that microspikes containing E-cadherin extend into gaps between E-cadherin clusters on neighboring cells, while reformation of cadherin clusters across the cell-cell boundary correlates with microspike withdrawal. We identify Arp2/3, EVL, and CRMP-1 as 3 actin assembly factors necessary for microspike formation. Depleting these factors from cells using RNA interference (RNAi) results in myosin II-dependent unzipping of cadherin adhesive bonds. Therefore, actin polymerization-dependent protrusive activity operates continuously at cadherin cell-cell junctions to keep them shut and to prevent myosin II-dependent contractility from tearing cadherin adhesive contacts apart.

Indexed as

Actin CytoskeletonActin-Related Protein 2-3 ComplexActinsAdherens JunctionsAnimalsCadherinsCell AdhesionCollapsin Response Mediator Protein 1DogsIntravital MicroscopyMadin Darby Canine Kidney CellsMicroscopy, ElectronMyosin Type IINerve Tissue ProteinsPhosphoproteinsRNA InterferenceActin-Related Protein 2-3 ComplexActinsCadherinsCollapsin Response Mediator Protein 1Myosin Type IINerve Tissue ProteinsPhosphoproteinsactinadhesionE-cadherinepithelialjunction

Identifiers

PMID31871203
PMCPMC6955295
OpenAlexW2997007510

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.