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Gao X, Su Q, Pan H, You Y, Ruan Z, Wu Y, Tang Z, Hu L. Arsenic-Induced Ferroptosis in Chicken Hepatocytes via the Mitochondrial ROS Pathway. Biol Trace Elem Res 2024; 202:4180-4190. [PMID: 38102534 DOI: 10.1007/s12011-023-03968-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Accepted: 11/16/2023] [Indexed: 12/17/2023]
Abstract
Arsenic has been shown to be highly toxic and can cause liver damage. Previous studies have shown that arsenic causes severe liver damage and induces accumulation of reactive oxygen species (ROS). This study aimed to investigate the effects of ferroptosis on the liver in arsenic trioxide (ATO) and to explore the underlying mechanisms. We confirmed the hepatotoxic effects of arsenic by in vivo and in vitro experiments. After 28 days of administration of arsenic trioxide (4-mg/kg, 8-mg/kg) by gavage, chickens exhibited body weight loss and liver damage in a dose-dependent manner. In addition, in vivo and in vitro western blot and real-time fluorescence quantitative PCR analyses simultaneously indicated that ferroptosis might be the main pathway of arsenic-induced liver injury. Finally, Mito-TEMPO effectively eliminated the ROS accumulation in mitochondria, significantly attenuating the process of cellular ferroptosis. In summary, the hepatotoxic effects of arsenic are related to ferroptosis, and the hepatic ferroptosis process of arsenic is regulated by mitochondrial ROS (MtROS). Our study reveals new mechanisms of arsenic toxicity to the liver, which may deepen our understanding of arsenic toxicology.
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Affiliation(s)
- Xinglin Gao
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, 510642, China
| | - Qian Su
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, 510642, China
| | - Hang Pan
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, 510642, China
| | - Yanli You
- College of Life Science, Yantai University, Yantai City, 264005, Shandong Province, China
| | - Zhiyan Ruan
- School of Pharmacy, Guangdong Food & Drug Vocational College, No. 321, Longdong North Road, Tianhe District, Guangzhou, 510520, Guangdong Province, People's Republic of China
| | - Yuhan Wu
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, 510642, China
| | - Zhaoxin Tang
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, 510642, China
| | - Lianmei Hu
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, 510642, China.
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Aljohani ASM. Heavy metal toxicity in poultry: a comprehensive review. Front Vet Sci 2023; 10:1161354. [PMID: 37456954 PMCID: PMC10340091 DOI: 10.3389/fvets.2023.1161354] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Accepted: 05/22/2023] [Indexed: 07/18/2023] Open
Abstract
Arsenic (As), lead (Pb), cadmium (Cd), and mercury (Hg) have been recognized as most toxic heavy metals that are continuously released into the environment, both from natural sources and from anthropogenic production of fertilizers, industrial activities, and waste disposal. Therefore, As, Cd, Hg, and Pb are found in increasing concentrations in bodies of water, fodder, feed, and in the tissues of livestock, including poultry, in the surroundings of industrial areas, leading to metabolic, structural, and functional abnormalities in various organs in all animals. In poultry, bioaccumulation of As, Pb, Cd, and Hg occurs in many organs (mainly in the kidneys, liver, reproductive organs, and lungs) as a result of continuous exposure to heavy metals. Consumption of Cd lowers the efficiency of feed conversion, egg production, and growth in poultry. Chronic exposure to As, Pb, Cd, and Hg at low doses can change the microscopic structure of tissues (mainly in the brain, liver, kidneys, and reproductive organs) as a result of the increased content of these heavy metals in these tissues. Histopathological changes occurring in the kidneys, liver, and reproductive organs are reflected in their negative impact on enzyme activity and serum biochemical parameters. Metal toxicity is determined by route of exposure, length of exposure, and absorbed dosage, whether chronic and acute. This review presents a discussion of bioaccumulation of As, Cd, Pb, and Hg in poultry and the associated histopathological changes and toxic concentrations in different tissues.
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Ma F, Huo Y, Li H, Yang F, Liao J, Han Q, Li Y, Pan J, Hu L, Guo J, Tang Z. New insights into the interaction between duodenal toxicity and microbiota disorder under copper exposure in chicken: Involving in endoplasmic reticulum stress and mitochondrial toxicity. Chem Biol Interact 2022; 366:110132. [PMID: 36030842 DOI: 10.1016/j.cbi.2022.110132] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Revised: 08/18/2022] [Accepted: 08/21/2022] [Indexed: 12/17/2022]
Abstract
Copper (Cu) has been widely used in industrial agricultural production, but excess use can lead to toxic effect on host physiology, which poses a threaten to public hygiene. However, the relationship between gut microbiota and Cu-induced intestinal toxicity is unclear. Here, we identified that intestinal flora disturbance was related to duodenal toxicity under Cu exposure. We found that excess Cu disturbed gut microbiota homeostasis, resulting in Cu accumulation and intestinal damage. In addition, Cu considerably increased intestinal permeability by reducing expression of tight junction proteins (Claudlin-1, Occludin, and ZO-1). Meanwhile, Cu could induce endoplasmic reticulum stress, mitophagy, and mitochondria-mediated apoptosis in the duodenum, with the evidence by the elevated levels of GRP78, GRP94, LC3Ⅱ/LC3Ⅰ and Caspase-3 protein expression. Correlation analysis showed that Melainabacteria was closely related to tight junction proteins and endoplasmic reticulum stress of duodenum, indicating that disturbance of intestinal flora may aggravate the toxic effect of Cu. Therefore, our results suggest that the destruction of intestinal flora induced by excessive Cu may further lead to intestinal barrier damage, ultimately leading to endoplasmic reticulum stress, mitophagy and apoptosis. This research provides a new insight into interpretation of the interrelationship between microbiota disorder and duodenal toxicity under Cu exposure.
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Affiliation(s)
- Feiyang Ma
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, 510642, China.
| | - Yihui Huo
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, 510642, China.
| | - Huayu Li
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, 510642, China.
| | - Fan Yang
- Jiangxi Provincial Key Laboratory for Animal Health, Institute of Animal Population Health, College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang, 330045, China.
| | - Jianzhao Liao
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, 510642, China.
| | - Qingyue Han
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, 510642, China.
| | - Ying Li
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, 510642, China.
| | - Jiaqiang Pan
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, 510642, China.
| | - Lianmei Hu
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, 510642, China.
| | - Jianying Guo
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, 510642, China.
| | - Zhaoxin Tang
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, 510642, China.
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Zhong G, Rao G, Tang L, Wu S, Tang Z, Huang R, Ruan Z, Hu L. Combined effect of arsenic and polystyrene-nanoplastics at environmentally relevant concentrations in mice liver: Activation of apoptosis, pyroptosis and excessive autophagy. CHEMOSPHERE 2022; 300:134566. [PMID: 35413363 DOI: 10.1016/j.chemosphere.2022.134566] [Citation(s) in RCA: 41] [Impact Index Per Article: 20.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 03/28/2022] [Accepted: 04/06/2022] [Indexed: 06/14/2023]
Abstract
The ecological risks caused by the coexistence of pollutants such as arsenic (As) and polystyrene-nanoplastics (PSNPs) in the environment have become a non-negligible problem. However, the effects of As and PSNPs co-exposure on mammals and the underlying toxicity mechanisms have remained unclear. Therefore, the present study established mouse models of As and/or PSNPS exposure to systematically analyze the underlying role of autophagy, apoptosis and pyroptosis in hepatotoxicity induced by co-exposure of As and PSNPs. Our findings demonstrated for the first time that mice co-exposure to As and PSNPs displayed significant pathological changes in the liver, while exposure to As or PSNPs alone did not produce significant toxic effects. More importantly, As and PSNPs co-exposure activated excessive autophagy through altered expression levels of PI3K, mTOR, Beclin-1, ATG5, LC3 and P62. Meanwhile, co-treatment with As and PSNPs induced apoptosis in the liver, which was confirmed by ultrastructure observation and changes in the expression of apoptosis indicators (P53, Bax, Bcl-2, Caspase-3, Caspase-9, Cleaved-Caspase-3 and Cytc). Additionally, co-exposure of As and PSNPs induced pyroptosis in the liver through NLRP3/Caspase-1 pathway via targeting NLRP3, ASC, Pro-Caspase-1, GSDMD and Cleaved-Caspase-1 expressions. Overall, our findings provide deeper insight into the roles of apoptosis, pyroptosis and excessive autophagy in the aggravation of liver injury, which could contribute to a better understanding of the interactions between As and PSNPS exposure and the molecular mechanisms of hepatotoxicity.
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Affiliation(s)
- Gaolong Zhong
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, 510642, China.
| | - Gan Rao
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, 510642, China.
| | - Lixuan Tang
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, 510642, China.
| | - Shaofeng Wu
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, 510642, China.
| | - Zhaoxin Tang
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, 510642, China.
| | - Riming Huang
- Guangdong Provincial Key Laboratory of Food Quality and Safety, College of Food Science, South China Agricultural University, Guangzhou, 510642, China.
| | - Zhiyan Ruan
- School of Pharmacy, Guangdong Food & Drug Vocational College, Guangzhou, 510520, China.
| | - Lianmei Hu
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, 510642, China.
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