Tannic Acid Improves Renal Function Recovery after Renal Warm Ischemia-Reperfusion in a Rat Model.
cold ischemia
oxidative stress
renal function recovery
tannic acid
warm ischemia
Journal
Biomolecules
ISSN: 2218-273X
Titre abrégé: Biomolecules
Pays: Switzerland
ID NLM: 101596414
Informations de publication
Date de publication:
12 03 2020
12 03 2020
Historique:
received:
11
02
2020
revised:
05
03
2020
accepted:
09
03
2020
entrez:
18
3
2020
pubmed:
18
3
2020
medline:
18
3
2021
Statut:
epublish
Résumé
Ischemia-reperfusion injury is encountered in numerous processes such as cardiovascular diseases or kidney transplantation; however, the latter involves cold ischemia, different from the warm ischemia found in vascular surgery by arterial clamping. The nature and the intensity of the processes induced by ischemia types are different, hence the therapeutic strategy should be adapted. Herein, we investigated the protective role of tannic acid, a natural polyphenol in a rat model reproducing both renal warm ischemia and kidney allotransplantation. The follow-up was done after 1 week. To characterize the effect of tannic acid, an in vitro model of endothelial cells subjected to hypoxia-reoxygenation was used. Tannic acid statistically improved recovery after warm ischemia but not after cold ischemia. In kidneys biopsies, 3h after warm ischemia-reperfusion, oxidative stress development was limited by tannic acid and the production of reactive oxygen species was inhibited, potentially through Nuclear Factor erythroid-2-Related factor 2 (NRF2) activation. In vitro, tannic acid and its derivatives limited cytotoxicity and the generation of reactive oxygen species. Molecular dynamics simulations showed that tannic acid efficiently interacts with biological membranes, allowing efficient lipid oxidation inhibition. Tannic acid also promoted endothelial cell migration and proliferation during hypoxia. Tannic acid was able to improve renal recovery after renal warm ischemia with an antioxidant effect putatively extended by the production of its derivatives in the body and promoted cell regeneration during hypoxia. This suggests that the mechanisms induced by warm and cold ischemia are different and require specific therapeutic strategies.
Sections du résumé
BACKGROUND AND PURPOSE
Ischemia-reperfusion injury is encountered in numerous processes such as cardiovascular diseases or kidney transplantation; however, the latter involves cold ischemia, different from the warm ischemia found in vascular surgery by arterial clamping. The nature and the intensity of the processes induced by ischemia types are different, hence the therapeutic strategy should be adapted. Herein, we investigated the protective role of tannic acid, a natural polyphenol in a rat model reproducing both renal warm ischemia and kidney allotransplantation. The follow-up was done after 1 week.
EXPERIMENTAL APPROACH
To characterize the effect of tannic acid, an in vitro model of endothelial cells subjected to hypoxia-reoxygenation was used.
KEY RESULTS
Tannic acid statistically improved recovery after warm ischemia but not after cold ischemia. In kidneys biopsies, 3h after warm ischemia-reperfusion, oxidative stress development was limited by tannic acid and the production of reactive oxygen species was inhibited, potentially through Nuclear Factor erythroid-2-Related factor 2 (NRF2) activation. In vitro, tannic acid and its derivatives limited cytotoxicity and the generation of reactive oxygen species. Molecular dynamics simulations showed that tannic acid efficiently interacts with biological membranes, allowing efficient lipid oxidation inhibition. Tannic acid also promoted endothelial cell migration and proliferation during hypoxia.
CONCLUSIONS
Tannic acid was able to improve renal recovery after renal warm ischemia with an antioxidant effect putatively extended by the production of its derivatives in the body and promoted cell regeneration during hypoxia. This suggests that the mechanisms induced by warm and cold ischemia are different and require specific therapeutic strategies.
Identifiants
pubmed: 32178273
pii: biom10030439
doi: 10.3390/biom10030439
pmc: PMC7175177
pii:
doi:
Substances chimiques
Tannins
0
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Déclaration de conflit d'intérêts
There are no conflicts of interest to disclose by any of the authors.
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