RRC ID 22011
Author Lewellyn L, Cetera M, Horne-Badovinac S.
Title Misshapen decreases integrin levels to promote epithelial motility and planar polarity in Drosophila.
Journal J Cell Biol
Abstract Complex organ shapes arise from the coordinate actions of individual cells. The Drosophila egg chamber is an organ-like structure that lengthens along its anterior-posterior axis as it grows. This morphogenesis depends on an unusual form of planar polarity in the organ's outer epithelial layer, the follicle cells. Interestingly, this epithelium also undergoes a directed migration that causes the egg chamber to rotate around its anterior-posterior axis. However, the functional relationship between planar polarity and migration in this tissue is unknown. We have previously reported that mutations in the Misshapen kinase disrupt follicle cell planar polarity. Here we show that Misshapen's primary role in this system is to promote individual cell motility. Misshapen decreases integrin levels at the basal surface, which may facilitate detachment of each cell's trailing edge. These data provide mechanistic insight into Misshapen's conserved role in cell migration and suggest that follicle cell planar polarity may be an emergent property of individual cell migratory behaviors within the epithelium.
Volume 200(6)
Pages 721-9
Published 2013-3-18
DOI 10.1083/jcb.201209129
PII jcb.201209129
PMID 23509067
PMC PMC3601364
MeSH Animals Cell Movement / physiology* Cell Polarity / physiology* Drosophila Proteins / genetics Drosophila Proteins / metabolism* Drosophila melanogaster Epithelial Cells / cytology Epithelial Cells / metabolism* Integrins / genetics Integrins / metabolism* Protein Serine-Threonine Kinases / genetics Protein Serine-Threonine Kinases / metabolism*
IF 8.811
Times Cited 37
WOS Category CELL BIOLOGY
Resource
Drosophila tj-Gal4 (DGRC#104055) and msn-YFP (DGRC#115454)