Bidirectional multiciliated cell extrusion is controlled by Notch-driven basal extrusion and Piezo1-driven apical extrusion

Abstract: Xenopus embryos are covered with a complex epithelium containing numerous multiciliated cells (MCCs). During late-stage development, there is a dramatic remodeling of the epithelium that involves the complete loss of MCCs. Cell extrusion is a well-characterized process for driving cell loss while maintaining epithelial barrier function. Normal cell extrusion is typically unidirectional, whereas bidirectional extrusion is often associated with disease (e.g. cancer). We describe two distinct mechanisms for MCC extrusion, a basal extrusion driven by Notch signaling and an apical extrusion driven by Piezo1. Early in the process there is a strong bias towards basal extrusion, but as development continues there is a shift towards apical extrusion. Importantly, response to the Notch signal is age dependent and governed by the maintenance of the MCC transcriptional program such that extension of this program is protective against cell loss. In contrast, later apical extrusion is regulated by Piezo1, such that premature activation of Piezo1 leads to early extrusion while blocking Piezo1 leads to MCC maintenance. Distinct mechanisms for MCC loss underlie the importance of their removal during epithelial remodeling

Standort
Deutsche Nationalbibliothek Frankfurt am Main
Umfang
Online-Ressource
Sprache
Englisch
Anmerkungen
Development. - 150, 17 (2023) , dev201612, ISSN: 1477-9129

Ereignis
Veröffentlichung
(wo)
Freiburg
(wer)
Universität
(wann)
2023
Urheber
Ventrella, Rosa
Kim, Sun K.
Sheridan, Jennifer
Grata, Aline
Bresteau, Enzo
Hassan, Osama A.
Suva, Eve E.
Walentek, Peter
Mitchell, Brian

DOI
10.1242/dev.201612
URN
urn:nbn:de:bsz:25-freidok-2408864
Rechteinformation
Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
Letzte Aktualisierung
14.08.2025, 11:01 MESZ

Datenpartner

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Beteiligte

  • Ventrella, Rosa
  • Kim, Sun K.
  • Sheridan, Jennifer
  • Grata, Aline
  • Bresteau, Enzo
  • Hassan, Osama A.
  • Suva, Eve E.
  • Walentek, Peter
  • Mitchell, Brian
  • Universität

Entstanden

  • 2023

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