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Article Dans Une Revue PLoS ONE Année : 2018

Carbonylation accumulation of the Hypsibius exemplaris anhydrobiote reveals age-associated marks

Résumé

Together with nematodes and rotifers, tardigrade belong to micrometazoans that can cope with environmental extremes such as UV and solar radiations, dehydration, supercooling or overheating. Tardigrade can resist the harshest conditions by turning to cryptobiosis, an anhydrobiotic state that results from almost complete dehydration and is characterized by an ametabolic status. Although reports have challenged the molecular basis of the mechanisms underlying genomic injury resistance, little is yet known regarding the possible involvement of other tardigrade macromolecules in injury during a stress experience. In this report, we show that the tardigrade Hypsibius exemplaris can accumulate molecular damages by means of in situ detection of carbonyls. Furthermore, we demonstrate that living tardigrade can accumulate carbonylation. Finally, we reveal that anhydrobiotic tardigrade can be constitutively affected by carbonylation that marks aging in other metazoans. © 2018 Kuzmic et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
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hal-02881824 , version 1 (28-02-2022)

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M. Kuzmic, M. Richaud, P. Cuq, S. Frelon, S. Galas. Carbonylation accumulation of the Hypsibius exemplaris anhydrobiote reveals age-associated marks. PLoS ONE, 2018, 13 (12), pp.e0208617. ⟨10.1371/journal.pone.0208617⟩. ⟨hal-02881824⟩
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