Epigallocatechin-3-gallate pretreatment alleviates doxorubicin-induced ferroptosis and cardiotoxicity by upregulating AMPKα2 and activating adaptive autophagy
Reports indicate that the mechanism of doxorubicin (Dox)-induced cardiotoxicity is very complex, involving multiple regulatory cell death forms. Furthermore, the clinical intervention effect is not ideal. Iron dependence, abnormal lipid metabolism, and excess reactive oxygen species generation, thre...
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2021
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oai:doaj.org-article:8c83b72294f346a0b2e9f1e91941b4042021-11-12T04:33:12ZEpigallocatechin-3-gallate pretreatment alleviates doxorubicin-induced ferroptosis and cardiotoxicity by upregulating AMPKα2 and activating adaptive autophagy2213-231710.1016/j.redox.2021.102185https://doaj.org/article/8c83b72294f346a0b2e9f1e91941b4042021-12-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S2213231721003451https://doaj.org/toc/2213-2317Reports indicate that the mechanism of doxorubicin (Dox)-induced cardiotoxicity is very complex, involving multiple regulatory cell death forms. Furthermore, the clinical intervention effect is not ideal. Iron dependence, abnormal lipid metabolism, and excess reactive oxygen species generation, three characteristics of ferroptosis, are potential therapeutic intervention targets. Here, we confirmed in vitro and in vivo that at least autophagy, apoptosis, and ferroptosis are involved in Dox cardiotoxicity-induced damage. When the neonatal rat cardiomyocytes and H9C2 cells or C57BL/6 mice were subjected to Dox-induced cardiotoxicity, epigallocatechin-3-gallate pretreatment could effectively decrease iron accumulation, inhibit oxidative stress and abnormal lipid metabolism, and thereby alleviate Dox cardiotoxicity-induced ferroptosis and protect the myocardium according to multiple functional, enzymatic, and morphological indices. The underlying mechanism was verified to involve the upregulation and activation of AMP-activated protein kinase α2, which promoted adaptive autophagy, increased energy supply, and maintained mitochondrial function. We believe that epigallocatechin-3-gallate is a candidate phytochemical against Dox-induced cardiotoxicity.Huan HeLiang WangYang QiaoBin YangDong YinMing HeElsevierarticleAMP-Activated protein kinase α2AutophagyCardiotoxicityDoxorubicinEpigallocatechin-3-gallateFerroptosisMedicine (General)R5-920Biology (General)QH301-705.5ENRedox Biology, Vol 48, Iss , Pp 102185- (2021) |
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AMP-Activated protein kinase α2 Autophagy Cardiotoxicity Doxorubicin Epigallocatechin-3-gallate Ferroptosis Medicine (General) R5-920 Biology (General) QH301-705.5 |
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AMP-Activated protein kinase α2 Autophagy Cardiotoxicity Doxorubicin Epigallocatechin-3-gallate Ferroptosis Medicine (General) R5-920 Biology (General) QH301-705.5 Huan He Liang Wang Yang Qiao Bin Yang Dong Yin Ming He Epigallocatechin-3-gallate pretreatment alleviates doxorubicin-induced ferroptosis and cardiotoxicity by upregulating AMPKα2 and activating adaptive autophagy |
description |
Reports indicate that the mechanism of doxorubicin (Dox)-induced cardiotoxicity is very complex, involving multiple regulatory cell death forms. Furthermore, the clinical intervention effect is not ideal. Iron dependence, abnormal lipid metabolism, and excess reactive oxygen species generation, three characteristics of ferroptosis, are potential therapeutic intervention targets. Here, we confirmed in vitro and in vivo that at least autophagy, apoptosis, and ferroptosis are involved in Dox cardiotoxicity-induced damage. When the neonatal rat cardiomyocytes and H9C2 cells or C57BL/6 mice were subjected to Dox-induced cardiotoxicity, epigallocatechin-3-gallate pretreatment could effectively decrease iron accumulation, inhibit oxidative stress and abnormal lipid metabolism, and thereby alleviate Dox cardiotoxicity-induced ferroptosis and protect the myocardium according to multiple functional, enzymatic, and morphological indices. The underlying mechanism was verified to involve the upregulation and activation of AMP-activated protein kinase α2, which promoted adaptive autophagy, increased energy supply, and maintained mitochondrial function. We believe that epigallocatechin-3-gallate is a candidate phytochemical against Dox-induced cardiotoxicity. |
format |
article |
author |
Huan He Liang Wang Yang Qiao Bin Yang Dong Yin Ming He |
author_facet |
Huan He Liang Wang Yang Qiao Bin Yang Dong Yin Ming He |
author_sort |
Huan He |
title |
Epigallocatechin-3-gallate pretreatment alleviates doxorubicin-induced ferroptosis and cardiotoxicity by upregulating AMPKα2 and activating adaptive autophagy |
title_short |
Epigallocatechin-3-gallate pretreatment alleviates doxorubicin-induced ferroptosis and cardiotoxicity by upregulating AMPKα2 and activating adaptive autophagy |
title_full |
Epigallocatechin-3-gallate pretreatment alleviates doxorubicin-induced ferroptosis and cardiotoxicity by upregulating AMPKα2 and activating adaptive autophagy |
title_fullStr |
Epigallocatechin-3-gallate pretreatment alleviates doxorubicin-induced ferroptosis and cardiotoxicity by upregulating AMPKα2 and activating adaptive autophagy |
title_full_unstemmed |
Epigallocatechin-3-gallate pretreatment alleviates doxorubicin-induced ferroptosis and cardiotoxicity by upregulating AMPKα2 and activating adaptive autophagy |
title_sort |
epigallocatechin-3-gallate pretreatment alleviates doxorubicin-induced ferroptosis and cardiotoxicity by upregulating ampkα2 and activating adaptive autophagy |
publisher |
Elsevier |
publishDate |
2021 |
url |
https://doaj.org/article/8c83b72294f346a0b2e9f1e91941b404 |
work_keys_str_mv |
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1718431303137755136 |