Evidence map›Paper›PMID 26292218›Full record

ArticleThe Journal of biological chemistry2015

Cleavage and cell adhesion properties of human epithelial cell adhesion molecule (HEPCAM).

Thanos Tsaktanis, Heidi Kremling, Miha Pavšič, Ricarda von Stackelberg, Brigitte Mack, Akio Fukumori, Harald Steiner, Franziska Vielmuth, Volker Spindler, Zhe Huang and 6 more

Erratum issuedOpen access · hybridAbstract read
In one paragraph

Article in The Journal of biological chemistry, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 37 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
37citing papers in PubMed, 1 pooled it
4.3field-weighted citation impact, top 6% 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

37 citing papers in PubMed, 1 synthesis or guideline pooled it, 55 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Journal of bacteriology · 2026
    Article
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  5. Article
  6. Review
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  16. ACS omega · 2020
    Article
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

16 authors at 4 institutions in 2 countries.

Thanos TsaktanisFrom the Department of Otorhinolaryngology, Head and Neck Surgery, Grosshadern Medical Center.
Heidi KremlingFrom the Department of Otorhinolaryngology, Head and Neck Surgery, Grosshadern Medical Center.
Miha Pavšičthe Department of Chemistry and Biochemistry, Faculty of Chemistry and Chemical Technology, University of Ljubljana, Večna Pot 113, SI-1000 Ljubljana, Slovenia.
Ricarda von StackelbergFrom the Department of Otorhinolaryngology, Head and Neck Surgery, Grosshadern Medical Center.
Brigitte MackFrom the Department of Otorhinolaryngology, Head and Neck Surgery, Grosshadern Medical Center.
Akio Fukumorithe DZNE-German Center for Neurodegenerative Diseases, Feodor-Lynen-Strasse 17, 81377 Munich, Germany.
Harald Steinerthe DZNE-German Center for Neurodegenerative Diseases, Feodor-Lynen-Strasse 17, 81377 Munich, Germany, Biomedical Center, Biochemistry.
Franziska VielmuthInstitute of Anatomy and Cell Biology, Department I.
Volker SpindlerInstitute of Anatomy and Cell Biology, Department I.
Zhe HuangFrom the Department of Otorhinolaryngology, Head and Neck Surgery, Grosshadern Medical Center.
Jasmine JakubowskiFrom the Department of Otorhinolaryngology, Head and Neck Surgery, Grosshadern Medical Center, the Munich Center for Neurosciences, LMU Biocenter, AMGEN Scholars Programme, Ludwig-Maximilians-Universität Munich, Grosshaderner Strasse 2, 82152 Planegg-Martinsried, Germany, and.
Nikolas H Stoeckleinthe Department for General, Visceral, and Pediatric Surgery, University Hospital and Medical Faculty of the Heinrich-Heine University Düsseldorf, Moorenstrasse 5, D-40225 Düsseldorf, Germany.
Elke LuxenburgerFrom the Department of Otorhinolaryngology, Head and Neck Surgery, Grosshadern Medical Center.
Kirsten LauberClinic for Radiotherapy and Radiation Oncology, and the Clinical Cooperation Group Personalized Radiotherapy of Head and Neck Tumors, Ludwig-Maximilians-University of Munich, Marchioninistrasse 15, 81377 Munich, Germany.
Brigita Lenarčičthe Department of Chemistry and Biochemistry, Faculty of Chemistry and Chemical Technology, University of Ljubljana, Večna Pot 113, SI-1000 Ljubljana, Slovenia.
Olivier GiresFrom the Department of Otorhinolaryngology, Head and Neck Surgery, Grosshadern Medical Center, Olivier.gires@med.uni-muenchen.de.
Ludwig-Maximilians-Universität München · DEUniversity of Ljubljana · SIDüsseldorf University Hospital · DEGerman Center for Neurodegenerative Diseases · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Human epithelial cell adhesion molecule (HEPCAM) is a tumor-associated antigen frequently expressed in carcinomas, which promotes proliferation after regulated intramembrane proteolysis. Here, we describe extracellular shedding of HEPCAM at two α-sites through a disintegrin and metalloprotease (ADAM) and at one β-site through BACE1. Transmembrane cleavage by γ-secretase occurs at three γ-sites to generate extracellular Aβ-like fragments and at two ϵ-sites to release human EPCAM intracellular domain HEPICD, which is efficiently degraded by the proteasome. Mapping of cleavage sites onto three-dimensional structures of HEPEX cis-dimer predicted conditional availability of α- and β-sites. Endocytosis of HEPCAM warrants acidification in cytoplasmic vesicles to dissociate protein cis-dimers required for cleavage by BACE1 at low pH values. Intramembrane cleavage sites are accessible and not part of the structurally important transmembrane helix dimer crossing region. Surprisingly, neither chemical inhibition of cleavage nor cellular knock-out of HEPCAM using CRISPR-Cas9 technology impacted the adhesion of carcinoma cell lines. Hence, a direct function of HEPCAM as an adhesion molecule in carcinoma cells is not supported and appears to be questionable.

Indexed as

Amino AcidsAmyloid Precursor Protein SecretasesAntigens, NeoplasmAspartic Acid EndopeptidasesBinding SitesCell AdhesionCell Adhesion MoleculesCell Line, TumorCell MembraneCell SeparationEndocytosisEpithelial Cell Adhesion MoleculeFlow CytometryHEK293 CellsHumansHydrogen-Ion ConcentrationAmino AcidsAmyloid Precursor Protein SecretasesAntigens, NeoplasmAspartic Acid EndopeptidasesBACE1 protein, humanCell Adhesion MoleculesEPCAM protein, humanEpithelial Cell Adhesion MoleculeADAMcell adhesionepithelial cell adhesion molecule (EPCAM)proteolysisβ-secretase 1 (BACE1)

Identifiers

PMID26292218
PMCPMC4591836
OpenAlexW2218722424

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.