RRC ID 57303
Author Díaz de la Loza MC, Díaz-Torres A, Zurita F, Rosales-Nieves AE, Moeendarbary E, Franze K, Martín-Bermudo MD, González-Reyes A.
Title Laminin Levels Regulate Tissue Migration and Anterior-Posterior Polarity during Egg Morphogenesis in Drosophila.
Journal Cell Rep
Abstract Basement membranes (BMs) are specialized extracellular matrices required for tissue organization and organ formation. We study the role of laminin and its integrin receptor in the regulation of tissue migration during Drosophila oogenesis. Egg production in Drosophila involves the collective migration of follicle cells (FCs) over the BM to shape the mature egg. We show that laminin content in the BM increases with time, whereas integrin amounts in FCs do not vary significantly. Manipulation of integrin and laminin levels reveals that a dynamic balance of integrin-laminin amounts determines the onset and speed of FC migration. Thus, the interplay of ligand-receptor levels regulates tissue migration in vivo. Laminin depletion also affects the ultrastructure and biophysical properties of the BM and results in anterior-posterior misorientation of developing follicles. Laminin emerges as a key player in the regulation of collective cell migration, tissue stiffness, and the organization of anterior-posterior polarity in Drosophila.
Volume 20(1)
Pages 211-223
Published 2017-7-5
DOI 10.1016/j.celrep.2017.06.031
PII S2211-1247(17)30828-8
PMID 28683315
PMC PMC5507772
MeSH Animals Basement Membrane / metabolism Basement Membrane / ultrastructure Cell Movement* Cell Polarity Drosophila Drosophila Proteins / genetics Drosophila Proteins / metabolism* Female Integrins / metabolism Laminin / genetics Laminin / metabolism* Morphogenesis* Oogenesis* Ovarian Follicle / cytology Ovarian Follicle / growth & development Ovarian Follicle / metabolism*
IF 7.815
Times Cited 15
Resource
Drosophila