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Cadmium exposure caused cardiotoxicity in common carps (Cyprinus carpio L.): miR-9-5p, oxidative stress, energetic impairment, mitochondrial division/fusion imbalance, inflammation, and autophagy

文献类型: 外文期刊

作者: Liu, Yuhao 1 ; Lin, Xu 1 ; Hao, Zhiyu 1 ; Yu, Meijin 1 ; Tang, You 2 ; Teng, Xiaohua 1 ; Sun, Wei 1 ; Kang, Lu 3 ;

作者机构: 1.Northeast Agr Univ, Coll Anim Sci & Technol, 600 Chang Jiang Rd, Harbin 150030, Peoples R China

2.JiLin Agr Sci & Technol Univ, Elect & Informat Engn Coll, Jilin 132101, Peoples R China

3.Xinjiang Acad Agr Sci, Inst Agr Qual Stand & Testing Technol, Urumqi 830091, Peoples R China

关键词: Heavy metal; microRNA-9-5p; Energetic impairment; Mitochondrial dynamics; NF-& kappa;B-COX-2 axis; Autophagic injury

期刊名称:FISH & SHELLFISH IMMUNOLOGY ( 影响因子:4.7; 五年影响因子:4.7 )

ISSN: 1050-4648

年卷期: 2023 年 138 卷

页码:

收录情况: SCI

摘要: Cadmium (Cd), a toxic heavy metal pollutant, is a threat to human and eatable fish health. Common carps are widely cultivated and eaten by humans. However, there are no reports about Cd-damaged common carp hearts. Our experiment attempted to investigate the cardiotoxicity of Cd to common carps by establishing a common carp Cd exposure model. Our results showed that Cd injured hearts. Moreover, Cd treatment induced autophagy via miR-9-5p/Sirt1/mTOR/ULK1 pathway. Cd exposure caused oxidant/antioxidant imbalance and oxidative stress; and led to energetic impairment. Energetic impairment partook in oxidative stress-mediated autophagy through AMPK/mTOR/ULK1 pathway. Furthermore, Cd caused mitochondrial division/fusion imbalance and resulted in inflammatory injury via NF-?B-COX-2-PTGEs and NF-?B-COX-2-TNF-a pathways. Oxidative stress mediated mitochondrial division/fusion imbalance, further induced inflammation and autophagy via OPA1/NF-?B-COX-2-TNF-a-Beclin1 and OPA1/NF-?B-COX-2-TNF-a/P62 pathways under Cd treatment. Taken together, miR-9-5p, oxidative stress, energetic impairment, mitochondrial division/fusion imbalance, inflammation, and autophagy participated in the mechanism of Cd-cardiotoxicity to common carps. Our study revealed harmful effect of Cd on hearts, and provided new information for researches of environmental pollutant toxicity.

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