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Zhang J, Yang A, Cui W, Zhang J, Niu A, Hu X, Li Q. Tracing toxic path of antimony: From bioaccumulation to DNA hypomethylation in zebrafish (Danio rerio). ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2024; 277:116351. [PMID: 38653027 DOI: 10.1016/j.ecoenv.2024.116351] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2024] [Revised: 04/04/2024] [Accepted: 04/17/2024] [Indexed: 04/25/2024]
Abstract
The increasing concentration of Antimony (Sb) in ecological environments has raised serious concerns about its potential biotoxicological impact. This study investigated the toxicokinetics, Global DNA Methylation (GDM), biomarker expression, and Integrated Biological Response (IBR) of Sb at different concentrations in zebrafish. The toxic mechanism of Sb exposure was simulated using molecular dynamics (MD). The results showed that significant differences effect existed (BCFk: liver > ovary > gut > brain) and uptake saturation phenomenon of Sb among zebrafish tissues. Over a 54-day exposure period, the liver emerged as the main target site for Sb-induced GDM, and the restoration was slower than in other tissues during the 54-day recovery period. Moreover, the concentration of Sb had a significant impact on the normally expression of biomarkers, with GSTM1 inhibited and MTF2, MT1, TET3, and p53 showing varying degrees of activation at different Sb concentrations. This could be attributed to Sb3+ potentially occupying the active site or tightly binding to the deep cavity of these genes. The IBR and MD results highlighted DNMT1 as the most sensitive biomarker among those assessed. This heightened sensitivity can be attributed to the stable binding of Sb3+ to DNMT1, resulting in alterations in the conformation of DNMT1's catalytic domain and inhibition of its activity. Consequently, this disruption leads to damage to the integrity of GDM. The study suggests that DNA methylation could serve as a valuable biomarker for assessing the ecotoxicological impact of Sb exposure. It contributes to a better understanding of the toxicity mechanisms in aquatic environments caused potential pollutants.
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Affiliation(s)
- Jingyun Zhang
- The College of Resources and Environmental Engineering, Guizhou University, Guiyang 550025, PR China
| | - Aijiang Yang
- The College of Resources and Environmental Engineering, Guizhou University, Guiyang 550025, PR China; Guizhou Karst Environmental Ecosystems Observation and Research Station, Ministry of Education, Guiyang 550025, PR China; Institute of Environmental Engineering Planning and Designing, Guizhou University, Guiyang 550025, PR China.
| | - Wen Cui
- The College of Resources and Environmental Engineering, Guizhou University, Guiyang 550025, PR China; Guizhou Karst Environmental Ecosystems Observation and Research Station, Ministry of Education, Guiyang 550025, PR China
| | - Jian Zhang
- The College of Resources and Environmental Engineering, Guizhou University, Guiyang 550025, PR China; Guizhou Karst Environmental Ecosystems Observation and Research Station, Ministry of Education, Guiyang 550025, PR China
| | - Apin Niu
- The College of Resources and Environmental Engineering, Guizhou University, Guiyang 550025, PR China; Guizhou Karst Environmental Ecosystems Observation and Research Station, Ministry of Education, Guiyang 550025, PR China; Institute of Environmental Engineering Planning and Designing, Guizhou University, Guiyang 550025, PR China
| | - Xia Hu
- The College of Resources and Environmental Engineering, Guizhou University, Guiyang 550025, PR China; Guizhou Karst Environmental Ecosystems Observation and Research Station, Ministry of Education, Guiyang 550025, PR China; Institute of Environmental Engineering Planning and Designing, Guizhou University, Guiyang 550025, PR China
| | - Qing Li
- The College of Resources and Environmental Engineering, Guizhou University, Guiyang 550025, PR China; Guizhou Karst Environmental Ecosystems Observation and Research Station, Ministry of Education, Guiyang 550025, PR China; Institute of Environmental Engineering Planning and Designing, Guizhou University, Guiyang 550025, PR China
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Liu C, Huang D, Sheng X, Zhu J, Dong S, Chen S, Wang Y, Tang A, Duan R, Yang Z, Bai J, Zheng Y. Integrated physiological, intestinal microbiota, and metabolomic responses of adult zebrafish (Danio rerio) to subacute exposure to antimony at environmentally relevant concentrations. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2024; 277:116326. [PMID: 38640800 DOI: 10.1016/j.ecoenv.2024.116326] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/17/2024] [Revised: 03/30/2024] [Accepted: 04/11/2024] [Indexed: 04/21/2024]
Abstract
The available information regarding the impact of antimony (Sb), a novel environmental pollutant, on the intestinal microbiota and host health is limited. In this study, we conducted physiological characterizations to investigate the response of adult zebrafish to different environmental concentrations (0, 30, 300, and 3000 µg/L) of Sb over a period of 14 days. Biochemical and pathological changes demonstrated that Sb effectively compromised the integrity of the intestinal physical barrier and induced inflammatory responses as well as oxidative stress. Analysis of both intestinal microbial community and metabolome revealed that exposure to 0 and 30 µg/L of Sb resulted in similar microbiota structures; however, exposure to 300 µg/L altered microbial communities' composition (e.g., a decline in genus Cetobacterium and an increase in Vibrio). Furthermore, exposure to 300 µg/L significantly decreased levels of bile acids and glycerophospholipids while triggering intestinal inflammation but activating self-protective mechanisms such as antibiotic presence. Notably, even exposure to 30 µg/L of Sb can trigger dysbiosis of intestinal microbiota and metabolites, potentially impacting fish health through the "microbiota-intestine-brain axis" and contributing to disease initiation. This study provides valuable insights into toxicity-related information concerning environmental impacts of Sb on aquatic organisms with significant implications for developing management strategies.
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Affiliation(s)
- Can Liu
- Hunan University of Humanities, Science and Technology, Loudi, Hunan 417000, China; Hunan Provincial Collaborative Innovation Center for Field Weeds Control, Hunan University of Humanities, Science and Technology, Loudi, Hunan 417000, China
| | - Dongmei Huang
- Hunan University of Humanities, Science and Technology, Loudi, Hunan 417000, China
| | - Xiangquan Sheng
- Hunan University of Humanities, Science and Technology, Loudi, Hunan 417000, China
| | - Jianzhong Zhu
- Hunan University of Humanities, Science and Technology, Loudi, Hunan 417000, China
| | - Si Dong
- Hunan University of Humanities, Science and Technology, Loudi, Hunan 417000, China
| | - Song Chen
- Hunan University of Humanities, Science and Technology, Loudi, Hunan 417000, China
| | - Yaying Wang
- Hunan University of Humanities, Science and Technology, Loudi, Hunan 417000, China
| | - Ao Tang
- Hunan University of Humanities, Science and Technology, Loudi, Hunan 417000, China
| | - Renyan Duan
- Hunan University of Humanities, Science and Technology, Loudi, Hunan 417000, China
| | - Zeliang Yang
- Hunan University of Humanities, Science and Technology, Loudi, Hunan 417000, China
| | - Jing Bai
- Hunan University of Humanities, Science and Technology, Loudi, Hunan 417000, China.
| | - Yu Zheng
- Hunan University of Humanities, Science and Technology, Loudi, Hunan 417000, China; Hunan Provincial Collaborative Innovation Center for Field Weeds Control, Hunan University of Humanities, Science and Technology, Loudi, Hunan 417000, China.
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Li Y, Li H, Zhang R, Bing X. Toxicity of antimony to Daphnia magna: Influence of environmental factors, development of biotic ligand approach and biochemical response at environmental relevant concentrations. JOURNAL OF HAZARDOUS MATERIALS 2024; 462:132738. [PMID: 37832444 DOI: 10.1016/j.jhazmat.2023.132738] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Revised: 09/20/2023] [Accepted: 10/06/2023] [Indexed: 10/15/2023]
Abstract
Acute toxicity of antimony pentavalent to neonatal Daphnia magna and the influence of water quality parameters were investigated, and enzymatic activities of organisms at environmentally relevant levels of antimony were determined. EC50 values of antimony to neonatal D. magna were 90.3 and 63.8 mg/L at 24 and 48 h of exposure, respectively. Dissolved organic matter (FA and HA) and cation (Ca2+, Mg2+ or Na+) had significant protective effects on D. magna against antimony toxicity. With increasing pH in the range from 7.4 to 8.5, increase of EC50 were observed due to the competition of OH- on biotic ligands. Based on the biotic ligand model (BLM) concept, stability constants for the binding of Sb(OH)6- and OH- to the biotic ligand were estimated, and the Log [Formula: see text] - and LogKXOH- were 3.137 and 2.859, respectively. Moreover, antimony exposure in low concentrations significantly increased MDA levels and maybe exert oxidative stress to the organisms. Antimony can also induce toxicity in D. magna by affecting oxidative stress and neurotransmitter systems. The relatively comprehensive toxicological data can contribute to the toxicity prediction and ecological risk assessments of antimony.
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Affiliation(s)
- Yue Li
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China; School of Ecology and Environment, Inner Mongolia University, Huhhot 010021, China
| | - Huixian Li
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China.
| | - Ruiqing Zhang
- School of Ecology and Environment, Inner Mongolia University, Huhhot 010021, China.
| | - Xiaojie Bing
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China; School of Ecology and Environment, Inner Mongolia University, Huhhot 010021, China
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Zhang JM, Han H, Li YC, Fu B, Kaneko G, Li K, Jin XC, Ji S, Yu EM, Liu LP. Comprehensive mRNA and microRNA analysis revealed the effect and response strategy of freshwater fish, grass carp (Ctenopharyngodon idella) under geosmin exposure. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2024; 269:115775. [PMID: 38070413 DOI: 10.1016/j.ecoenv.2023.115775] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Revised: 11/07/2023] [Accepted: 11/28/2023] [Indexed: 01/12/2024]
Abstract
Geosmin is an environmental pollutant that causes off-flavor in water and aquatic products. The high occurrence of geosmin contamination in aquatic systems and aquaculture raises public awareness, however, few studies have investigated the response pathways of geosmin stress on freshwater fish. In this research, grass carp were exposed to 50 μg/L geosmin for 96 h, liver tissue was sequenced and validated using real-time qPCR. In total of 528 up-regulated genes and 488 down-regulated genes were observed, includes cytochrome P450 and uridine diphosphate (UDP)-glucuronosyltransferase related genes. KEGG analysis showed that chemical carcinogenesis-DNA adducts, metabolism of xenobiotics by cytochrome P450, drug metabolism-cytochrome P450 pathway was enriched. Common genes from the target genes of microRNAs and differential expression genes are enriched in metabolism of xenobiotics cytochrome P450 pathway. Two miRNAs (dre-miR-146a and miR-212-3p) down regulated their target genes (LOC127510138 and adh5, respectively) which are enriched cytochrome P450 related pathway. The results present that geosmin is genetoxic to grass carp and indicate that cytochrome P450 system and UDP-glucuronosyltransferase play essential roles in biotransformation of geosmin. MicroRNAs regulate the biotransformation of geosmin by targeting specific genes, which contributes to the development of strategies to manage its negative impacts in both natural and artificial environments.
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Affiliation(s)
- Jun-Ming Zhang
- China-ASEAN "The Belt and Road" Joint Laboratory of Marine Culture Technology (Shanghai), Shanghai Ocean University, Shanghai 201306, China; Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, Shanghai Ocean University, Shanghai 201306, China
| | - Huan Han
- China-ASEAN "The Belt and Road" Joint Laboratory of Marine Culture Technology (Shanghai), Shanghai Ocean University, Shanghai 201306, China; Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, Shanghai Ocean University, Shanghai 201306, China
| | - Yi-Chao Li
- Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, Shanghai Ocean University, Shanghai 201306, China; Key Laboratory of Tropical & Subtropical Fishery Resource Application & Cultivation, Pearl River Fisheries Research Institute of CAFS, Guangzhou 510380, China
| | - Bing Fu
- College of Marine Sciences, South China Agricultural University, Guangzhou 510640, China
| | - Gen Kaneko
- College of Natural & Applied Science, University of Houston-Victoria, Victoria, TX 77901, USA
| | - Kang Li
- China-ASEAN "The Belt and Road" Joint Laboratory of Marine Culture Technology (Shanghai), Shanghai Ocean University, Shanghai 201306, China; Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, Shanghai Ocean University, Shanghai 201306, China.
| | - Xi-Chen Jin
- China-ASEAN "The Belt and Road" Joint Laboratory of Marine Culture Technology (Shanghai), Shanghai Ocean University, Shanghai 201306, China; Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, Shanghai Ocean University, Shanghai 201306, China
| | - Shuang Ji
- China-ASEAN "The Belt and Road" Joint Laboratory of Marine Culture Technology (Shanghai), Shanghai Ocean University, Shanghai 201306, China; Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, Shanghai Ocean University, Shanghai 201306, China
| | - Er-Meng Yu
- Key Laboratory of Tropical & Subtropical Fishery Resource Application & Cultivation, Pearl River Fisheries Research Institute of CAFS, Guangzhou 510380, China
| | - Li-Ping Liu
- China-ASEAN "The Belt and Road" Joint Laboratory of Marine Culture Technology (Shanghai), Shanghai Ocean University, Shanghai 201306, China; Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, Shanghai Ocean University, Shanghai 201306, China.
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Shi J, Ma C, Zheng Z, Zhang T, Li Z, Sun X, He Z, Zhang Z, Zhang C. Low-dose antimony exposure promotes prostate cancer proliferation by inhibiting ferroptosis via activation of the Nrf2-SLC7A11-GPX4 pathway. CHEMOSPHERE 2023; 339:139716. [PMID: 37562508 DOI: 10.1016/j.chemosphere.2023.139716] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Revised: 07/09/2023] [Accepted: 08/01/2023] [Indexed: 08/12/2023]
Abstract
Antimony (Sb) is a typical environmental pollutant. With the development of industrialization, antimony is widely used in daily life and enters the human body through the food chain, water source, air pollution, and other channels. The risk of antimony exposure has emerged as one of the public's major health concerns. Current research on antimony shows that antimony has certain biological toxicity, and antimony exposure may be one of the carcinogenic risk factors for bladder cancer, prostate cancer (PCa), and other cancers. But the molecular mechanism of antimony exposure in PCa is still unclear. Our results showed that serum antimony levels were significantly higher in PCa patients than in benign prostatic hyperplasia (BPH), and high levels of serum antimony were associated with poorer prognosis in PCa. We demonstrate that antimony exposure promotes PCa progression in vivo and in vitro. In addition, our results also showed that low-dose antimony exposure resulted in increased GSH, increased GPX4 expression, and decreased Fe2+. Since GPX4 and Fe2+ are important molecular features in the mechanism of ferroptosis, we further found that low-dose antimony exposure can inhibit RSL3-induced ferroptosis and promote PCa proliferation. Finally, our study demonstrates that low-dose antimony exposure promotes Nrf2 expression, increases the expression level of SLC7A11, and then increases the expression of GPX4, inhibits ferroptosis, and promotes PCa progression. Taken together, our experimental results suggest that low-dose antimony exposure promotes PCa cell proliferation by inhibiting ferroptosis through activation of the Nrf2-SLC7A11-GPX4 pathway. These findings highlight the link between low-dose antimony exposure and the Nrf2-SLC7A11-GPX4 ferroptosis pathway, providing a new potential direction for the prevention and treatment of PCa.
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Affiliation(s)
- Jianxi Shi
- Tianjin Institute of Urology, The Second Hospital of Tianjin Medical University, Tianjin, China.
| | - Chunlei Ma
- Department of Urology, Tianjin 4th Center Hospital, The 4th Center Clinical College of Tianjin Medical University, Tianjin, China.
| | - Zhiwen Zheng
- Tianjin Institute of Urology, The Second Hospital of Tianjin Medical University, Tianjin, China.
| | - Tianxiao Zhang
- Tianjin Institute of Urology, The Second Hospital of Tianjin Medical University, Tianjin, China.
| | - Zhaopeng Li
- Tianjin Institute of Urology, The Second Hospital of Tianjin Medical University, Tianjin, China.
| | - Xiaoyu Sun
- Tianjin Institute of Urology, The Second Hospital of Tianjin Medical University, Tianjin, China.
| | - Zhen He
- Tianjin Institute of Urology, The Second Hospital of Tianjin Medical University, Tianjin, China.
| | - Zhihong Zhang
- Tianjin Institute of Urology, The Second Hospital of Tianjin Medical University, Tianjin, China.
| | - Changwen Zhang
- Tianjin Institute of Urology, The Second Hospital of Tianjin Medical University, Tianjin, China.
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Yao Q, Yang A, Hu X, Zou H, Chen J, Li Q, Lv S, Yu X, Li C. Effects of antimony exposure on DNA damage and genome-wide variation in zebrafish (Danio rerio) liver. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2023; 259:106524. [PMID: 37031539 DOI: 10.1016/j.aquatox.2023.106524] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Revised: 03/21/2023] [Accepted: 04/05/2023] [Indexed: 05/15/2023]
Abstract
Antimony (Sb) is a potentially toxic and carcinogenic cumulative contaminant that poses a serious threat to aquatic ecosystems. To better clarify the genotoxicity of Sb and its mechanism of action. In this study, we investigated DNA damage and genome-wide variation in the liver of a model organism, zebrafish (Danio rerio), under subacute Sb exposure and explored its potential toxicological mechanisms. The results showed that medium and high concentrations of Sb significantly reduced the total antioxidant capacity and increased the content of reactive oxygen species in zebrafish liver, and further studies revealed that it increased oxidative DNA damage and DNA-DNA cross-link (DDC), but had little effect on DNA-protein cross-link (DPC). The result of resequencing showed that the mutation sites of the genes with high concentrations of Sb were higher than those with medium concentrations, and the mutation was mainly a single nucleotide. The pathways significantly enriched for nonsynonymous single nucleotide polymorphisms (SNPs) and insertion/deletion mutations (InDels) variant genes in the coding regions of both the medium and high Sb-treated groups were ECM-receptor interactions, and the high Sb-treated group also included lysine degradation, hematopoietic cell lineage, and cytokine-cytokine receptor interactions. This suggests that ECM-receptor interactions play an important role in the mechanism of antimony toxicity to the liver of zebrafish.
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Affiliation(s)
- Qin Yao
- The College of Resources and Environmental Engineering, Guizhou University, Guiyang 550025, PR China
| | - Aijiang Yang
- The College of Resources and Environmental Engineering, Guizhou University, Guiyang 550025, PR China; Guizhou Karst Environmental Ecosystems Observation and Research Station, Ministry of Education, Guiyang 550025, PR China; Institute of Environmental Engineering Planning and Designing, Guizhou University, Guiyang 550025, PR China.
| | - Xia Hu
- The College of Resources and Environmental Engineering, Guizhou University, Guiyang 550025, PR China; Guizhou Karst Environmental Ecosystems Observation and Research Station, Ministry of Education, Guiyang 550025, PR China; Institute of Environmental Engineering Planning and Designing, Guizhou University, Guiyang 550025, PR China
| | - HaiTao Zou
- The College of Resources and Environmental Engineering, Guizhou University, Guiyang 550025, PR China
| | - Jiangfeng Chen
- The College of Animal Science, Guizhou University, Guiyang 550025, PR China
| | - Qing Li
- The College of Resources and Environmental Engineering, Guizhou University, Guiyang 550025, PR China
| | - Shenghan Lv
- Guizhou Provincial Academy of Agricultural Sciences, Guiyang 550025, PR China
| | - Xuegang Yu
- The College of Resources and Environmental Engineering, Guizhou University, Guiyang 550025, PR China
| | - Cixing Li
- The College of Resources and Environmental Engineering, Guizhou University, Guiyang 550025, PR China
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