Patterning of wound-induced intercellular Ca(2+) flashes in a developing epithelium

Physical Biology
Cody NarcisoJeremiah Zartman

Abstract

Differential mechanical force distributions are increasingly recognized to provide important feedback into the control of an organ's final size and shape. As a second messenger that integrates and relays mechanical information to the cell, calcium ions (Ca(2+)) are a prime candidate for providing important information on both the overall mechanical state of the tissue and resulting behavior at the individual-cell level during development. Still, how the spatiotemporal properties of Ca(2+) transients reflect the underlying mechanical characteristics of tissues is still poorly understood. Here we use an established model system of an epithelial tissue, the Drosophila wing imaginal disc, to investigate how tissue properties impact the propagation of Ca(2+) transients induced by laser ablation. The resulting intercellular Ca(2+) flash is found to be mediated by inositol 1,4,5-trisphosphate and depends on gap junction communication. Further, we find that intercellular Ca(2+) transients show spatially non-uniform characteristics across the proximal-distal axis of the larval wing imaginal disc, which exhibit a gradient in cell size and anisotropy. A computational model of Ca(2+) transients is employed to identify the principle factors...Continue Reading

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Citations

Apr 5, 2017·Current Opinion in Cell Biology·Iswar K Hariharan, Florenci Serras
Feb 22, 2017·Scientific Reports·Ramya BalajiAnne-Kathrin Classen
Apr 4, 2018·Physical Biology·Pavel A Brodskiy, Jeremiah J Zartman
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Jan 1, 2016·Journal of the Royal Society, Interface·Jochen KursaweAlexander G Fletcher
Jan 10, 2020·Wiley Interdisciplinary Reviews. Systems Biology and Medicine·Jia GouHans G Othmer
May 3, 2019·Journal of Biological Engineering·Qinfeng WuJeremiah J Zartman
Oct 6, 2017·Biophysical Journal·Erica K ShannonM Shane Hutson
Nov 2, 2021·PLoS Computational Biology·Dharsan K SoundarrajanJeremiah J Zartman

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