Zeb1 affects epithelial cell adhesion by diverting glycosphingolipid metabolism.
EMBO Rep
; 16(3): 321-31, 2015 Mar.
Article
in En
| MEDLINE
| ID: mdl-25643708
ABSTRACT
This study proposes that the transcription factor Zeb1 modulates epithelial cell adhesion by diverting glycosphingolipid metabolism. Zeb1 promotes expression of a-series glycosphingolipids via regulating expression of GM3 synthase (St3gal5), which mechanistically involves Zeb1 binding to the St3gal5 promoter as well as suppressing microRNA-mediated repression of St3gal5. Functionally, the repression of St3gal5 suffices to elevate intercellular adhesion and expression of distinct junction-associated proteins, reminiscent of knockdown of Zeb1. Conversely, overexpressing St3gal5 sensitizes cells towards TGF-ß1-induced disruption of cell-cell interaction and partially antagonizes elevation of intercellular adhesion imposed by Zeb1 knockdown. These results highlight a direct connection of glycosphingolipid metabolism and epithelial cell adhesion via Zeb1.
Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Sialyltransferases
/
Glycosphingolipids
/
Gene Expression Regulation, Enzymologic
/
Cell Adhesion
/
Homeodomain Proteins
/
Epithelial Cells
/
Kruppel-Like Transcription Factors
Limits:
Animals
Language:
En
Journal:
EMBO Rep
Journal subject:
BIOLOGIA MOLECULAR
Year:
2015
Type:
Article
Affiliation country:
Germany