Evidence map›Paper›PMID 35203278›Full record

ArticleCells2022

The ACE2 Receptor for Coronavirus Entry Is Localized at Apical Cell-Cell Junctions of Epithelial Cells.

Florian Rouaud, Isabelle Méan, Sandra Citi

Open access · goldAbstract read
In one paragraph

Article in Cells, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
2.1field-weighted citation impact, top 11% 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

13 citing papers in PubMed, 22 citations in OpenAlex.

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  12. Shared Inflammatory Pathology of Stroke and COVID-19.International journal of molecular sciences · 2022
    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

3 authors at 1 institution in 1 country.

Florian RouaudDepartment of Cell Biology, Faculty of Sciences, University of Geneva, 1205 Geneva, Switzerland.
Isabelle MéanDepartment of Cell Biology, Faculty of Sciences, University of Geneva, 1205 Geneva, Switzerland.
Sandra CitiDepartment of Cell Biology, Faculty of Sciences, University of Geneva, 1205 Geneva, Switzerland.
University of Geneva · CH

Funding

Swiss National Science Foundation 31003A_172809
6 · The paper itself

Abstract

Transmembrane proteins of adherens and tight junctions are known targets for viruses and bacterial toxins. The coronavirus receptor ACE2 has been localized at the apical surface of epithelial cells, but it is not clear whether ACE2 is localized at apical Cell-Cell junctions and whether it associates with junctional proteins. Here we explored the expression and localization of ACE2 and its association with transmembrane and tight junction proteins in epithelial tissues and cultured cells by data mining, immunoblotting, immunofluorescence microscopy, and co-immunoprecipitation experiments. ACE2 mRNA is abundant in epithelial tissues, where its expression correlates with the expression of the tight junction proteins cingulin and occludin. In cultured epithelial cells ACE2 mRNA is upregulated upon differentiation and ACE2 protein is widely expressed and co-immunoprecipitates with the transmembrane proteins ADAM17 and CD9. We show by immunofluorescence microscopy that ACE2 colocalizes with ADAM17 and CD9 and the tight junction protein cingulin at apical junctions of intestinal (Caco-2), mammary (Eph4) and kidney (mCCD) epithelial cells. These observations identify ACE2, ADAM17 and CD9 as new epithelial junctional transmembrane proteins and suggest that the cytokine-enhanced endocytic internalization of junction-associated protein complexes comprising ACE2 may promote coronavirus entry.

Indexed as

ADAM17 ProteinAdherens JunctionsAngiotensin-Converting Enzyme 2CadherinsCarrier ProteinsCell LineCell Membrane PermeabilityCoronavirusEpithelial CellsGene ExpressionIntercellular JunctionsTetraspanin 29Tight Junction ProteinsTight JunctionsTranscriptomeACE2 protein, humanADAM17 ProteinADAM17 protein, humanAngiotensin-Converting Enzyme 2CadherinsCarrier ProteinsCD9 protein, humanTetraspanin 29Tight Junction ProteinsACE2Cell—Cell junctionscoronavirusepithelium

Identifiers

PMID35203278
PMCPMC8870730
OpenAlexW4213342824

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.