Nerves, H 2 O 2 and Shh: Three players in the game of regeneration

The tight control of reactive oxygen species (ROS) levels is required during regeneration. H O in particular assumes clear signalling functions at different steps in this process. Injured nerves induce high levels of H O through the activation of the Hedgehog (Shh) pathway, providing an environment...

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Veröffentlicht in:Seminars in cell & developmental biology 2018-08, Vol.80, p.65
Hauptverfasser: Meda, Francesca, Rampon, Christine, Dupont, Edmond, Gauron, Carole, Mourton, Aurélien, Queguiner, Isabelle, Thauvin, Marion, Volovitch, Michel, Joliot, Alain, Vriz, Sophie
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container_title Seminars in cell & developmental biology
container_volume 80
creator Meda, Francesca
Rampon, Christine
Dupont, Edmond
Gauron, Carole
Mourton, Aurélien
Queguiner, Isabelle
Thauvin, Marion
Volovitch, Michel
Joliot, Alain
Vriz, Sophie
description The tight control of reactive oxygen species (ROS) levels is required during regeneration. H O in particular assumes clear signalling functions at different steps in this process. Injured nerves induce high levels of H O through the activation of the Hedgehog (Shh) pathway, providing an environment that promotes cell plasticity, progenitor recruitment and blastema formation. In turn, high H O levels contribute to growing axon attraction. Once re-innervation is completed, nerves subsequently downregulate H O levels to their original state. A similar regulatory loop between H O levels and nerves also exists during development. This suggests that redox signalling is a major actor in cell plasticity.
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subjects Animals
Hedgehog Proteins - metabolism
Humans
Hydrogen Peroxide - metabolism
Nerve Net - metabolism
Reactive Oxygen Species - metabolism
Regeneration - physiology
Signal Transduction - physiology
title Nerves, H 2 O 2 and Shh: Three players in the game of regeneration
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