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Hydrogen peroxide is necessary during tail regeneration in juvenile axolotl - PubMed

. 2022 Jun;251(6):1054-1076.

doi: 10.1002/dvdy.386. Epub 2021 Jun 24.

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Hydrogen peroxide is necessary during tail regeneration in juvenile axolotl

Belfran Carbonell M et al. Dev Dyn. 2022 Jun.

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Abstract

Background: Hydrogen peroxide (H2 O2 ) is a key reactive oxygen species (ROS) generated during appendage regeneration among vertebrates. However, its role during tail regeneration in axolotl as redox signaling molecule is unclear.

Results: Treatment with exogenous H2 O2 rescues inhibitory effects of apocynin-induced growth suppression in tail blastema cells leading to cell proliferation. H2 O2 also promotes recruitment of immune cells, regulate the activation of AKT kinase and Agr2 expression during blastema formation. Additionally, ROS/H2 O2 regulates the expression and transcriptional activity of Yap1 and its target genes Ctgf and Areg.

Conclusions: These results show that H2 O2 is necessary and sufficient to promote tail regeneration in axolotls. Additionally, Akt signaling and Agr2 were identified as ROS targets, suggesting that ROS/H2 O2 is likely to regulate epimorphic regeneration through these signaling pathways. In addition, ROS/H2 O2 -dependent-Yap1 activity is required during tail regeneration.

Keywords: Agr2; Akt signaling; ROS signaling; Yap1; blastema; salamander.

© 2021 American Association for Anatomy.

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REFERENCES

    1. Iismaa SE, Kaidonis X, Nicks AM, et al. Comparative regenerative mechanisms across different mammalian tissues. npj Regen Med. 2018;3:1-20.
    1. Brockes JP, Kumar A. Comparative aspects of animal regeneration. Annu Rev Cell Dev Biol. 2008;24:525-549.
    1. Joven A, Elewa A, Simon A. Model systems for regeneration: Salamanders. Development (Cambridge). 2019;146(14). https://doi.org/10.1242/dev.167700.
    1. Phipps LS, Marshall L, Dorey K, Amaya E. Model systems for regeneration: Xenopus. Development (Cambridge). 2020;147(6). https://doi.org/10.1242/dev.180844.
    1. Marques IJ, Lupi E, Mercader N. Model systems for regeneration: Zebrafish. Development (Cambridge). 2019;146(18). https://doi.org/10.1242/dev.167692.

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