Integrins are required for synchronous ommatidial rotation in the Drosophila eye linking planar cell polarity signalling to the extracellular matrixShow others and affiliations
2019 (English)In: Open Biology, E-ISSN 2046-2441, Vol. 9, no 8, article id 190148
Article in journal (Refereed) Published
Abstract [en]
Integrins mediate the anchorage between cells and their environment, the extracellular matrix (ECM), and form transmembrane links between the ECM and the cytoskeleton, a conserved feature throughout development and morphogenesis of epithelial organs. Here, we demonstrate that integrins and components of the ECM are required during the planar cell polarity (PCP) signalling-regulated cell movement of ommatidial rotation in the Drosophila eye. The loss-of-function mutations of integrins or ECM components cause defects in rotation, with mutant clusters rotating asynchronously compared to wild-type clusters. Initially, mutant clusters tend to rotate faster, and at later stages they fail to be synchronous with their neighbours, leading to aberrant rotation angles and resulting in a disorganized ommatidial arrangement in adult eyes. We further demonstrate that integrin localization changes dynamically during the rotation process. Our data suggest that core Frizzled/PCP factors, acting through RhoA and Rho kinase, regulate the function/activity of integrins and that integrins thus contribute to the complex interaction network of PCP signalling, cell adhesion and cytoskeletal elements required for a precise and synchronous 90 degrees rotation movement.
Place, publisher, year, edition, pages
ROYAL SOC , 2019. Vol. 9, no 8, article id 190148
Keywords [en]
planar cell polarity, Drosophila eye, ommatidial rotation, integrins, extracellular matrix
National Category
Cell and Molecular Biology
Identifiers
URN: urn:nbn:se:uu:diva-394163DOI: 10.1098/rsob.190148ISI: 000483917300006PubMedID: 31409231OAI: oai:DiVA.org:uu-394163DiVA, id: diva2:1357819
2019-10-042019-10-042023-08-17Bibliographically approved