Hyperhomocysteinaemia Promotes Doxorubicin-Induced Cardiotoxicity in Mice

Doxorubicin, a widely used chemotherapeutic drug in clinical oncology, causes a series of cardiac side effects referred to as doxorubicin-induced cardiotoxicity. Hyperhomocysteinaemia is an independent risk factor for multiple cardiovascular diseases. However, whether hyperhomocysteinaemia contribut...

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Main Authors: Rui Fan, Yao Wang, Jinjin Zhang, Xiangbo An, Shuang Liu, Jie Bai, Jiatian Li, Qiuyue Lin, Yunpeng Xie, Jiawei Liao, Yunlong Xia
Format: Article
Language:English
Published: MDPI AG 2023-08-01
Series:Pharmaceuticals
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Online Access:https://www.mdpi.com/1424-8247/16/9/1212
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author Rui Fan
Yao Wang
Jinjin Zhang
Xiangbo An
Shuang Liu
Jie Bai
Jiatian Li
Qiuyue Lin
Yunpeng Xie
Jiawei Liao
Yunlong Xia
author_facet Rui Fan
Yao Wang
Jinjin Zhang
Xiangbo An
Shuang Liu
Jie Bai
Jiatian Li
Qiuyue Lin
Yunpeng Xie
Jiawei Liao
Yunlong Xia
author_sort Rui Fan
collection DOAJ
description Doxorubicin, a widely used chemotherapeutic drug in clinical oncology, causes a series of cardiac side effects referred to as doxorubicin-induced cardiotoxicity. Hyperhomocysteinaemia is an independent risk factor for multiple cardiovascular diseases. However, whether hyperhomocysteinaemia contributes to doxorubicin-induced cardiotoxicity is currently unknown. In this study, we explored the pathogenic effects of hyperhomocysteinaemia induced by dietary methionine supplementation (2% wt/wt in rodent chow) in a mouse model of doxorubicin-induced cardiotoxicity. Our data showed that methionine supplementation doubled serum homocysteine levels, inducing mild hyperhomocysteinaemia. Doxorubicin at a cumulative dosage of 25 mg/kg body weight led to significant weight loss and severe cardiac dysfunction, which were further exacerbated by methionine-induced mild hyperhomocysteinaemia. Doxorubicin-induced cardiac atrophy, cytoplasmic vacuolisation, myofibrillar disarray and loss, as well as cardiac fibrosis, were also exacerbated by methionine-induced mild hyperhomocysteinaemia. Additional folic acid supplementation (0.006% wt/wt) prevented methionine-induced hyperhomocysteinaemia and inhibited hyperhomocysteinaemia-aggravated cardiac dysfunction and cardiomyopathy. In particular, hyperhomocysteinaemia increased both serum and cardiac oxidative stress, which could all be inhibited by folic acid supplementation. Therefore, we demonstrated for the first time that hyperhomocysteinaemia could exacerbate doxorubicin-induced cardiotoxicity in mice, and the pathogenic effects of hyperhomocysteinaemia might at least partially correlate with increased oxidative stress and could be prevented by folic acid supplementation. Our study provides preliminary experimental evidence for the assessment of hyperhomocysteinaemia as a potential risk factor for chemotherapy-induced cardiotoxicity in cancer patients.
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spelling doaj.art-5ed4bfda7aa84d0ab1a3e43fa5162a832023-11-19T12:24:07ZengMDPI AGPharmaceuticals1424-82472023-08-01169121210.3390/ph16091212Hyperhomocysteinaemia Promotes Doxorubicin-Induced Cardiotoxicity in MiceRui Fan0Yao Wang1Jinjin Zhang2Xiangbo An3Shuang Liu4Jie Bai5Jiatian Li6Qiuyue Lin7Yunpeng Xie8Jiawei Liao9Yunlong Xia10Institute of Cardiovascular Diseases, First Affiliated Hospital of Dalian Medical University, Dalian 116011, ChinaInstitute of Cardiovascular Diseases, First Affiliated Hospital of Dalian Medical University, Dalian 116011, ChinaInstitute of Cardiovascular Diseases, First Affiliated Hospital of Dalian Medical University, Dalian 116011, ChinaDepartment of Interventional Therapy, First Affiliated Hospital of Dalian Medical University, Dalian 116011, ChinaCollege of Basic Medical Sciences, Dalian Medical University, Dalian 116004, ChinaDepartment of Nutrition and Food Hygiene, School of Public Health, Dalian Medical University, Dalian 116004, ChinaInstitute of Cardiovascular Diseases, First Affiliated Hospital of Dalian Medical University, Dalian 116011, ChinaInstitute of Cardiovascular Diseases, First Affiliated Hospital of Dalian Medical University, Dalian 116011, ChinaInstitute of Cardiovascular Diseases, First Affiliated Hospital of Dalian Medical University, Dalian 116011, ChinaInstitute of Cardiovascular Diseases, First Affiliated Hospital of Dalian Medical University, Dalian 116011, ChinaInstitute of Cardiovascular Diseases, First Affiliated Hospital of Dalian Medical University, Dalian 116011, ChinaDoxorubicin, a widely used chemotherapeutic drug in clinical oncology, causes a series of cardiac side effects referred to as doxorubicin-induced cardiotoxicity. Hyperhomocysteinaemia is an independent risk factor for multiple cardiovascular diseases. However, whether hyperhomocysteinaemia contributes to doxorubicin-induced cardiotoxicity is currently unknown. In this study, we explored the pathogenic effects of hyperhomocysteinaemia induced by dietary methionine supplementation (2% wt/wt in rodent chow) in a mouse model of doxorubicin-induced cardiotoxicity. Our data showed that methionine supplementation doubled serum homocysteine levels, inducing mild hyperhomocysteinaemia. Doxorubicin at a cumulative dosage of 25 mg/kg body weight led to significant weight loss and severe cardiac dysfunction, which were further exacerbated by methionine-induced mild hyperhomocysteinaemia. Doxorubicin-induced cardiac atrophy, cytoplasmic vacuolisation, myofibrillar disarray and loss, as well as cardiac fibrosis, were also exacerbated by methionine-induced mild hyperhomocysteinaemia. Additional folic acid supplementation (0.006% wt/wt) prevented methionine-induced hyperhomocysteinaemia and inhibited hyperhomocysteinaemia-aggravated cardiac dysfunction and cardiomyopathy. In particular, hyperhomocysteinaemia increased both serum and cardiac oxidative stress, which could all be inhibited by folic acid supplementation. Therefore, we demonstrated for the first time that hyperhomocysteinaemia could exacerbate doxorubicin-induced cardiotoxicity in mice, and the pathogenic effects of hyperhomocysteinaemia might at least partially correlate with increased oxidative stress and could be prevented by folic acid supplementation. Our study provides preliminary experimental evidence for the assessment of hyperhomocysteinaemia as a potential risk factor for chemotherapy-induced cardiotoxicity in cancer patients.https://www.mdpi.com/1424-8247/16/9/1212hyperhomocysteinaemiahomocysteinemethioninedoxorubicincardiotoxicityfolic acid
spellingShingle Rui Fan
Yao Wang
Jinjin Zhang
Xiangbo An
Shuang Liu
Jie Bai
Jiatian Li
Qiuyue Lin
Yunpeng Xie
Jiawei Liao
Yunlong Xia
Hyperhomocysteinaemia Promotes Doxorubicin-Induced Cardiotoxicity in Mice
Pharmaceuticals
hyperhomocysteinaemia
homocysteine
methionine
doxorubicin
cardiotoxicity
folic acid
title Hyperhomocysteinaemia Promotes Doxorubicin-Induced Cardiotoxicity in Mice
title_full Hyperhomocysteinaemia Promotes Doxorubicin-Induced Cardiotoxicity in Mice
title_fullStr Hyperhomocysteinaemia Promotes Doxorubicin-Induced Cardiotoxicity in Mice
title_full_unstemmed Hyperhomocysteinaemia Promotes Doxorubicin-Induced Cardiotoxicity in Mice
title_short Hyperhomocysteinaemia Promotes Doxorubicin-Induced Cardiotoxicity in Mice
title_sort hyperhomocysteinaemia promotes doxorubicin induced cardiotoxicity in mice
topic hyperhomocysteinaemia
homocysteine
methionine
doxorubicin
cardiotoxicity
folic acid
url https://www.mdpi.com/1424-8247/16/9/1212
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