Cited by 58Cell Adhesion Molecules ResearchBiotin and Related StudiesAdvanced Proteomics Techniques and Applications

The N-cadherin interactome in primary cardiomyocytes as defined using quantitative proximity proteomics

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Li, Yang, Merkel, Chelsea D., Zeng, Xuemei, Heier, Jonathon A., Cantrell, Pamela S., Sun, Mai, Stolz, Donna B., Watkins, Simon C. +2 more·2019·Journal of Cell Science

Published version of a preprint

Abstract

The junctional complexes that couple cardiomyocytes must transmit the mechanical forces of contraction while maintaining adhesive homeostasis. The adherens junction (AJ) connects the actomyosin networks of neighboring cardiomyocytes and is required for proper heart function. Yet little is known about the molecular composition of the cardiomyocyte AJ or how it is organized to function under mechanical load. Here, we define the architecture, dynamics and proteome of the cardiomyocyte AJ. Mouse neonatal cardiomyocytes assemble stable AJs along intercellular contacts with organizational and structural hallmarks similar to mature contacts. We combine quantitative mass spectrometry with proximity labeling to identify the N-cadherin (CDH2) interactome. We define over 350 proteins in this interactome, nearly 200 of which are unique to CDH2 and not part of the E-cadherin (CDH1) interactome. CDH2-specific interactors comprise primarily adaptor and adhesion proteins that promote junction specialization. Our results provide novel insight into the cardiomyocyte AJ and offer a proteomic atlas for defining the molecular complexes that regulate cardiomyocyte intercellular adhesion. This article has an associated First Person interview with the first authors of the paper.

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Authors
Li, Y., Merkel, C. D., Zeng, X., Heier, J. A., Cantrell, P. S., Sun, M., Stolz, D. B., Watkins, S. C., Yates, N. A., & Kwiatkowski, A. V.
Affiliations
  • University of Pittsburgh School of Medicine 1 Department of Cell Biology , , Pittsburgh, PA 15261 , USA
  • University of Pittsburgh (US)
Corresponding author
Kwiatkowski, Adam V.
Venue
Journal of Cell Science
Published
2019-02-01
Volume
132
Issue
3
ISSN
  • 0021-9533 (ISSN-L)
  • 1477-9137
OpenAlex
W2808271009
Cited by
58
References
94
Citations by year
2026: 10 · 2025: 3 · 2024: 4 · 2023: 6 · 2022: 10 · 2021: 8 · 2020: 12 · 2019: 4 · 2018: 1
FWCI
6.47
Type
journal article
Language
en
Open access
Locations
  • Journal of Cell Science (publishedVersion, cc-by)
  • bioRxiv (Cold Spring Harbor Laboratory) (acceptedVersion)
  • Europe PMC (PubMed Central) (publishedVersion, other-oa)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • HighWire Press Open Archive (submittedVersion)
Funders
  • National Institutes of Health (F31 HL136069, 1S10OD011967, R01 HL127711)
  • National Cancer Institute (P30CA047904)
Topics
  • Health Sciences › Medicine › Immunology and Allergy › Cell Adhesion Molecules Research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Biotin and Related Studies
  • Physical Sciences › Chemistry › Spectroscopy › Advanced Proteomics Techniques and Applications
Keywords
N-cadherin, E-cadherin, CDH1, adherens junctions, cardiomyocytes, protein-protein interaction network, cell-cell adhesion, junctional complexes, mechanical force transmission, proximity labeling, neonatal cardiomyocytes
MeSH terms
Actomyosin, Animals, Animals, Newborn, Cell Adhesion, Cell Communication, Gene Expression Regulation, Actin Cytoskeleton, Protein Binding, Cadherins, Adherens Junctions, Protein Interaction Mapping, Myocytes, Cardiac, Mechanotransduction, Cellular, Proteomics, Mice, Molecular Sequence Annotation, Primary Cell Culture, Gene Ontology

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