Title |
Sustained production of ROS triggers compensatory proliferation and is required for regeneration to proceed
|
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Published in |
Scientific Reports, June 2013
|
DOI | 10.1038/srep02084 |
Pubmed ID | |
Authors |
Carole Gauron, Christine Rampon, Mohamed Bouzaffour, Eliane Ipendey, Jérémie Teillon, Michel Volovitch, Sophie Vriz |
Abstract |
A major issue in regenerative medicine is the role of injury in promoting cell plasticity. Here we explore the function of reactive oxygen species (ROS) induced through lesions in adult zebrafish. We show that ROS production, following adult fin amputation, is tightly regulated in time and space for at least 24 hours, whereas ROS production remains transient (2 hours) in mere wound healing. In regenerative tissue, ROS signaling triggers two distinct parallel pathways: one pathway is responsible for apoptosis, and the other pathway is responsible for JNK activation. Both events are involved in the compensatory proliferation of stump epidermal cells and are necessary for the progression of regeneration. Both events impact the Wnt, SDF1 and IGF pathways, while apoptosis only impacts progenitor marker expression. These results implicate oxidative stress in regeneration and provide new insights into the differences between healing and regeneration. |
X Demographics
Geographical breakdown
Country | Count | As % |
---|---|---|
United States | 3 | 43% |
United Kingdom | 1 | 14% |
Italy | 1 | 14% |
Unknown | 2 | 29% |
Demographic breakdown
Type | Count | As % |
---|---|---|
Members of the public | 3 | 43% |
Practitioners (doctors, other healthcare professionals) | 2 | 29% |
Scientists | 2 | 29% |
Mendeley readers
Geographical breakdown
Country | Count | As % |
---|---|---|
United Kingdom | 2 | <1% |
United States | 2 | <1% |
Chile | 1 | <1% |
Brazil | 1 | <1% |
Sweden | 1 | <1% |
Portugal | 1 | <1% |
Spain | 1 | <1% |
Germany | 1 | <1% |
Japan | 1 | <1% |
Other | 1 | <1% |
Unknown | 269 | 96% |
Demographic breakdown
Readers by professional status | Count | As % |
---|---|---|
Student > Ph. D. Student | 66 | 23% |
Student > Master | 47 | 17% |
Researcher | 37 | 13% |
Student > Bachelor | 37 | 13% |
Professor > Associate Professor | 18 | 6% |
Other | 37 | 13% |
Unknown | 39 | 14% |
Readers by discipline | Count | As % |
---|---|---|
Agricultural and Biological Sciences | 92 | 33% |
Biochemistry, Genetics and Molecular Biology | 90 | 32% |
Engineering | 7 | 2% |
Neuroscience | 7 | 2% |
Medicine and Dentistry | 7 | 2% |
Other | 30 | 11% |
Unknown | 48 | 17% |