Interplay of MPP5a with Rab11 synergistically builds epithelial apical polarity and zonula adherens.
Adherens Junctions
/ genetics
Animals
Cadherins
/ genetics
Cell Movement
/ physiology
Cell Polarity
/ physiology
Epithelial Cells
Golgi Apparatus
/ genetics
Guanylate Cyclase
/ genetics
Protein Transport
/ physiology
Zebrafish
/ embryology
Zebrafish Proteins
/ genetics
rab GTP-Binding Proteins
/ genetics
Adherens junctions remodeling
Apical polarity
MPP5a
Rab11
Zonula adherens
Journal
Development (Cambridge, England)
ISSN: 1477-9129
Titre abrégé: Development
Pays: England
ID NLM: 8701744
Informations de publication
Date de publication:
19 11 2020
19 11 2020
Historique:
received:
02
09
2019
accepted:
09
10
2020
pubmed:
17
10
2020
medline:
20
1
2021
entrez:
16
10
2020
Statut:
epublish
Résumé
Adherens junction remodeling regulated by apical polarity proteins constitutes a major driving force for tissue morphogenesis, although the precise mechanism remains inconclusive. Here, we report that, in zebrafish, the Crumbs complex component MPP5a interacts with small GTPase Rab11 in Golgi to transport cadherin and Crumbs components synergistically to the apical domain, thus establishing apical epithelial polarity and adherens junctions. In contrast, Par complex recruited by MPP5a is incapable of interacting with Rab11 but might assemble cytoskeleton to facilitate cadherin exocytosis. In accordance, dysfunction of MPP5a induces an invasive migration of epithelial cells. This adherens junction remodeling pattern is frequently observed in zebrafish lens epithelial cells and neuroepithelial cells. The data identify an unrecognized MPP5a-Rab11 complex and describe its essential role in guiding apical polarization and zonula adherens formation in epithelial cells.
Identifiants
pubmed: 33060129
pii: dev.184457
doi: 10.1242/dev.184457
pii:
doi:
Substances chimiques
Cadherins
0
Zebrafish Proteins
0
mpp5a protein, zebrafish
EC 2.7.4.8
rab11 protein
EC 3.6.1.-
rab GTP-Binding Proteins
EC 3.6.5.2
Guanylate Cyclase
EC 4.6.1.2
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Informations de copyright
© 2020. Published by The Company of Biologists Ltd.
Déclaration de conflit d'intérêts
Competing interestsThe authors declare no competing or financial interests.