Curvature-dependent constraints drive remodeling of epithelia.


Journal

Journal of cell science
ISSN: 1477-9137
Titre abrégé: J Cell Sci
Pays: England
ID NLM: 0052457

Informations de publication

Date de publication:
24 01 2019
Historique:
received: 11 07 2018
accepted: 17 12 2018
pubmed: 24 12 2018
medline: 6 2 2020
entrez: 23 12 2018
Statut: epublish

Résumé

Epithelial tissues function as barriers that separate the organism from the environment. They usually have highly curved shapes, such as tubules or cysts. However, the processes by which the geometry of the environment and the cell's mechanical properties set the epithelium shape are not yet known. In this study, we encapsulated two epithelial cell lines, MDCK and J3B1A, into hollow alginate tubes and grew them under cylindrical confinement forming a complete monolayer. MDCK monolayers detached from the alginate shell at a constant rate, whereas J3B1A monolayers detached at a low rate unless the tube radius was reduced. We showed that this detachment is driven by contractile stresses in the epithelium and can be enhanced by local curvature. This allows us to conclude that J3B1A cells exhibit smaller contractility than MDCK cells. Monolayers inside curved tubes detach at a higher rate on the outside of a curve, confirming that detachment is driven by contraction.

Identifiants

pubmed: 30578312
pii: jcs.222372
doi: 10.1242/jcs.222372
pmc: PMC6398478
pii:
doi:

Substances chimiques

Alginates 0
Drug Combinations 0
Laminin 0
Proteoglycans 0
matrigel 119978-18-6
Collagen 9007-34-5

Types de publication

Journal Article Research Support, Non-U.S. Gov't

Langues

eng

Sous-ensembles de citation

IM

Subventions

Organisme : European Research Council
ID : 311536
Pays : International

Informations de copyright

© 2019. Published by The Company of Biologists Ltd.

Déclaration de conflit d'intérêts

Competing interestsThe authors declare no competing or financial interests.

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Auteurs

Florian A Maechler (FA)

Department of Biochemistry, University of Geneva, CH-1211 Geneva, Switzerland.

Cédric Allier (C)

CEA, LETI, DTBS, LISA, Université Grenoble Alpes, F-38000 Grenoble, France.

Aurélien Roux (A)

Department of Biochemistry, University of Geneva, CH-1211 Geneva, Switzerland aurelien.roux@unige.ch caterina.tomba@unige.ch.
NCCR Chemical Biology, University of Geneva, CH-1211 Geneva, Switzerland.

Caterina Tomba (C)

Department of Biochemistry, University of Geneva, CH-1211 Geneva, Switzerland aurelien.roux@unige.ch caterina.tomba@unige.ch.

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Classifications MeSH