Abstract
Mitochondria adapt to cellular needs by changes in morphology through fusion and fission events, referred to as mitochondrial dynamics. Mitochondrial function and morphology are intimately connected and the dysregulation of mitochondrial dynamics is linked to several human diseases. In this work, we investigated the role of mitochondrial dynamics in wound healing in the Drosophila embryonic epidermis. Mutants for mitochondrial fusion and fission proteins fail to close their wounds, indicating that the regulation of mitochondrial dynamics is required for wound healing. By live-imaging, we found that loss of function of the mitochondrial fission protein Dynamin-related protein 1 (Drp1) compromises the increase of cytosolic and mitochondrial calcium upon wounding and leads to reduced ROS production and F-actin defects at the wound edge, culminating in wound healing impairment. Our results highlight a new role for mitochondrial dynamics in the regulation of calcium, ROS and F-actin during epithelial repair.
- Received October 7, 2019.
- Accepted March 9, 2020.
- © 2020. Published by The Company of Biologists Ltd
This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution and reproduction in any medium provided that the original work is properly attributed.
Article Navigation
Related articles
Cited by...
More in this TOC section
Similar articles
Other journals from The Company of Biologists
Biology Open and COVID-19
We are aware that the COVID-19 pandemic is having an unprecedented impact on researchers worldwide. The Editors of all The Company of Biologists’ journals have been considering ways in which we can alleviate concerns that members of our community may have around publishing activities during this time. Read about the actions we are taking at this time.
Please don’t hesitate to contact the Editorial Office if you have any questions or concerns.
Future Leader Review - Cardiac myosin super relaxation
A new Future Leader Review by Manuel Schmid and Christopher Toepfer discusses the rapidly-expanding field of myosin super relaxation in the context of cardiovascular disease. Read the full Review and their accompanying interview.
Find out more about our Future Leader Reviews – they are an exclusive opportunity for early-career researchers who want to establish themselves in their field.
An interview with Roberta Azzarelli
In an interview, first author Roberta Azzarelli discusses her 3D model of glioblastoma and shares her thoughts on how to improve the professional lives of early-career researchers: formal mentorship programmes, a clearly structured career path and taking part in initiatives such as the Node Network.
News from our sister journals
Development continues to run a successful new webinar series, Development presents…, while Journal of Cell Science has recently welcomed Esperanza Agullo-Pascual as FocalPlane’s new Community Manager. Journal of Experimental Biology’s new special issue highlights the role of comparative biology in tackling climate change and Liz Patton, the new Editor-in-Chief of Disease Models & Mechanisms, sets out her visions and priorities.