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Zhao H, Chen W, Li F, Wang X, Pan X, Liu Y, Wang L, Sun W, Li F, Jiang S. Dissecting the long-term neurobehavioral impact of embryonic benz[a]anthracene exposure on zebrafish: Social dysfunction and molecular pathway activation. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 930:172615. [PMID: 38657801 DOI: 10.1016/j.scitotenv.2024.172615] [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: 01/29/2024] [Revised: 04/11/2024] [Accepted: 04/17/2024] [Indexed: 04/26/2024]
Abstract
Benz[a]anthracene (BaA), a prevalent environmental contaminant within the polycyclic aromatic hydrocarbon class, poses risks to both human health and aquatic ecosystems. The impact of BaA on neural development and subsequent social behavior patterns remains inadequately explored. In this investigation, we employed the zebrafish as a model to examine the persisting effects of BaA exposure on social behaviors across various developmental stages, from larvae, juveniles to adults, following embryonic exposure. Our findings indicate that BaA exposure during embryogenesis yields lasting neurobehavioral deficits into adulthood. Proteomic analysis highlights that BaA may impair neuro-immune crosstalk in zebrafish larvae. Remarkably, our proteomic data also hint at the activation of the aryl hydrocarbon receptor (AHR) and cytochrome P450 1A (CYP1A) pathway by BaA, leading to the hypothesis that this pathway may be implicated in the disruption of neuro-immune interactions, contributing to observable behavioral disruptions. In summary, our findings suggest that early exposure to BaA disrupts social behaviors, such as social ability and shoaling behaviors, from the larval stage through to maturity in zebrafish, potentially through the detrimental effects on neuro-immune processes mediated by the AHR-CYP1A pathway.
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Affiliation(s)
- Haichu Zhao
- Institute for Advanced Study, Shenzhen University, Shenzhen 518060, China; College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China
| | - Weiran Chen
- Ministry of Education and Shanghai Key Laboratory of Children's Environmental Health, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200092, China; Department of Developmental and Behavioral Pediatric & Child Primary Care, Brain and Behavioral Research Unit of Shanghai Institute for Pediatric Research, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
| | - Fei Li
- Biomedical Analysis Center, Army Medical University, Chongqing 400038, China
| | - Xiaoyang Wang
- Biomedical Analysis Center, Army Medical University, Chongqing 400038, China
| | - Xin Pan
- Institute for Advanced Study, Shenzhen University, Shenzhen 518060, China
| | - Yang Liu
- Biomedical Analysis Center, Army Medical University, Chongqing 400038, China
| | - Liting Wang
- Biomedical Analysis Center, Army Medical University, Chongqing 400038, China
| | - Wei Sun
- Biomedical Analysis Center, Army Medical University, Chongqing 400038, China
| | - Fei Li
- Ministry of Education and Shanghai Key Laboratory of Children's Environmental Health, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200092, China; Department of Developmental and Behavioral Pediatric & Child Primary Care, Brain and Behavioral Research Unit of Shanghai Institute for Pediatric Research, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
| | - Shan Jiang
- Institute for Advanced Study, Shenzhen University, Shenzhen 518060, China.
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Zhang Y, Wang B, Sun W, Wang G, Liu Z, Zhang X, Ding J, Han Y, Zhang H. Paternal exposures to endocrine-disrupting chemicals induce intergenerational epigenetic influences on offspring: A review. ENVIRONMENT INTERNATIONAL 2024; 187:108689. [PMID: 38688236 DOI: 10.1016/j.envint.2024.108689] [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: 01/23/2024] [Revised: 03/28/2024] [Accepted: 04/22/2024] [Indexed: 05/02/2024]
Abstract
Endocrine-disrupting chemicals (EDCs) are ubiquitous in ecological environments and have become a great issue of public health concern since the 1990 s. There is a deep scientific understanding of the toxicity of EDCs. However, recent studies have found that the abnormal physiological functions of the parents caused by EDCs could be transmitted to their unexposed offspring, leading to intergenerational toxicity. We questioned whether sustained epigenetic changes occur through the male germline. In this review, we (1) systematically searched the available research on the intergenerational impacts of EDCs in aquatic and mammal organisms, including 42 articles, (2) summarized the intergenerational genetic effects, such as decreased offspring survival, abnormal reproductive dysfunction, metabolic disorders, and behavioral abnormalities, (3) summarized the mechanisms of intergenerational toxicity through paternal interactions, and (4) propose suggestions on future research directions to develop a deeper understanding of the ecological risk of EDCs.
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Affiliation(s)
- Yinan Zhang
- Hangzhou Normal University, Hangzhou 310018, China
| | - Bingyi Wang
- Hangzhou Normal University, Hangzhou 310018, China
| | - Wenhui Sun
- Hangzhou Normal University, Hangzhou 310018, China
| | | | - Zhiquan Liu
- Hangzhou Normal University, Hangzhou 310018, China; Hangzhou International Urbanology Research Center, Hangzhou 311121, China
| | | | - Jiafeng Ding
- Hangzhou Normal University, Hangzhou 310018, China
| | - Yu Han
- Hangzhou Normal University, Hangzhou 310018, China
| | - Hangjun Zhang
- Hangzhou Normal University, Hangzhou 310018, China; Hangzhou International Urbanology Research Center, Hangzhou 311121, China.
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3
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Frøysa HG, Nepstad R, Meier S, Donald C, Sørhus E, Bockwoldt M, Carroll J, Vikebø FB. Mind the gap - Relevant design for laboratory oil exposure of fish as informed by a numerical impact assessment model. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 904:166951. [PMID: 37696403 DOI: 10.1016/j.scitotenv.2023.166951] [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: 05/05/2023] [Revised: 08/30/2023] [Accepted: 09/08/2023] [Indexed: 09/13/2023]
Abstract
Laboratory experiments provide knowledge of species-specific effects thresholds that are used to parameterize impact assessment models of oil contamination on marine ecosystems. Such experiments typically place individuals of species and life stages in tanks with different contaminant concentrations. Exposure concentrations are usually fixed, and the individuals experience a shock treatment being moved from clean water directly into contaminated water and then back to clean water. In this study, we use a coupled numerical model that simulates ocean currents and state, oil dispersal and fate, and early life stages of fish to quantify oil exposure histories, specifically addressing oil spill scenarios of high rates and long durations. By including uptake modelling we also investigate the potential of buffering transient high peaks in exposure. Our simulation results are the basis for a recommendation on the design of laboratory experiments to improve impact assessment model development and parameterization. We recommend an exposure profile with three main phases: i) a gradual increase in concentration, ii) a transient peak that is well above the subsequent level, and iii) a plateau of fixed concentration lasting ∼3 days. In addition, a fourth phase with a slow decrease may be added.
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Affiliation(s)
- Håvard G Frøysa
- Institute of Marine Research, PO Box 1870, Nordnes, 5817 Bergen, Norway.
| | - Raymond Nepstad
- SINTEF Ocean, PO Box 4762, Torgarden, 7465 Trondheim, Norway
| | - Sonnich Meier
- Institute of Marine Research, PO Box 1870, Nordnes, 5817 Bergen, Norway
| | - Carey Donald
- Institute of Marine Research, PO Box 1870, Nordnes, 5817 Bergen, Norway
| | - Elin Sørhus
- Institute of Marine Research, PO Box 1870, Nordnes, 5817 Bergen, Norway
| | - Mathias Bockwoldt
- Department of Geosciences, UiT The Arctic University of Norway, 9037 Tromsø, Norway
| | - JoLynn Carroll
- Department of Geosciences, UiT The Arctic University of Norway, 9037 Tromsø, Norway; Akvaplan-Niva, FRAM - High North Research Centre for Climate and the Environment, 9296 Tromsø, Norway
| | - Frode B Vikebø
- Institute of Marine Research, PO Box 1870, Nordnes, 5817 Bergen, Norway; Geophysical Institute, University of Bergen, PO Box 7830, 5020 Bergen, Norway
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Wu L, Zeeshan M, Dang Y, Zhang YT, Liang LX, Huang JW, Zhou JX, Guo LH, Fan YY, Sun MK, Yu T, Wen Y, Lin LZ, Liu RQ, Dong GH, Chu C. Maternal transfer of F-53B inhibited neurobehavior in zebrafish offspring larvae and potential mechanisms: Dopaminergic dysfunction, eye development defects and disrupted calcium homeostasis. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 894:164838. [PMID: 37353013 DOI: 10.1016/j.scitotenv.2023.164838] [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: 02/22/2023] [Revised: 05/25/2023] [Accepted: 06/10/2023] [Indexed: 06/25/2023]
Abstract
Maternal exposure to environment toxicants is an important risk factor for neurobehavioral health in their offspring. In our study, we investigated the impact of maternal exposure to chlorinated polyfluoroalkyl ether sulfonic acids (Cl-PFESAs, commercial name: F-53B) on behavioral changes and the potential mechanism in the offspring larvae of zebrafish. Adult zebrafish exposed to Cl-PFESAs (0, 0.2, 2, 20 and 200 μg/L) for 21 days were subsequently mated their embryos were cultured for 5 days. Higher concentrations of Cl-PFESAs in zebrafish embryos were observed, along with, reduced swimming speed and distance travelled in the offspring larvae. Molecular docking analysis revealed that Cl-PFESAs can form hydrogen bonds with brain-derived neurotropic factor (BDNF), protein kinase C, alpha, (PKCα), Ca2+-ATPase and Na, K - ATPase. Molecular and biochemical studies evidenced Cl-PFESAs induce dopaminergic dysfunction, eye developmental defects and disrupted Ca2+ homeostasis. Together, our results showed that maternal exposure to Cl-PFESAs lead to behavioral alteration in offspring mediated by disruption in Ca2+ homeostasis, dopaminergic dysfunction and eye developmental defects.
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Affiliation(s)
- Luyin Wu
- Guangdong Provincial Engineering Technology Research Center of Environmental Pollution and Health Risk Assessment, Department of Occupational and Environmental Health, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
| | - Mohammed Zeeshan
- Guangdong Provincial Engineering Technology Research Center of Environmental Pollution and Health Risk Assessment, Department of Occupational and Environmental Health, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
| | - Yao Dang
- State Environmental Protection Key Laboratory of Environmental Pollution Health Risk Assessment, South China Institute of Environmental Sciences, Ministry of Ecology and Environment, Guangzhou 510655, China
| | - Yun-Ting Zhang
- Guangdong Provincial Engineering Technology Research Center of Environmental Pollution and Health Risk Assessment, Department of Occupational and Environmental Health, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
| | - Li-Xia Liang
- Guangdong Provincial Engineering Technology Research Center of Environmental Pollution and Health Risk Assessment, Department of Occupational and Environmental Health, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
| | - Jing-Wen Huang
- Guangdong Provincial Engineering Technology Research Center of Environmental Pollution and Health Risk Assessment, Department of Occupational and Environmental Health, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
| | - Jia-Xin Zhou
- Guangdong Provincial Engineering Technology Research Center of Environmental Pollution and Health Risk Assessment, Department of Occupational and Environmental Health, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
| | - Li-Hao Guo
- Guangdong Provincial Engineering Technology Research Center of Environmental Pollution and Health Risk Assessment, Department of Occupational and Environmental Health, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
| | - Yuan-Yuan Fan
- Guangdong Provincial Engineering Technology Research Center of Environmental Pollution and Health Risk Assessment, Department of Occupational and Environmental Health, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
| | - Ming-Kun Sun
- Guangdong Provincial Engineering Technology Research Center of Environmental Pollution and Health Risk Assessment, Department of Occupational and Environmental Health, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
| | - Tao Yu
- Guangdong Provincial Engineering Technology Research Center of Environmental Pollution and Health Risk Assessment, Department of Occupational and Environmental Health, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
| | - Yue Wen
- Guangdong Provincial Engineering Technology Research Center of Environmental Pollution and Health Risk Assessment, Department of Occupational and Environmental Health, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
| | - Li-Zi Lin
- Guangdong Provincial Engineering Technology Research Center of Environmental Pollution and Health Risk Assessment, Department of Occupational and Environmental Health, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
| | - Ru-Qing Liu
- Guangdong Provincial Engineering Technology Research Center of Environmental Pollution and Health Risk Assessment, Department of Occupational and Environmental Health, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
| | - Guang-Hui Dong
- Guangdong Provincial Engineering Technology Research Center of Environmental Pollution and Health Risk Assessment, Department of Occupational and Environmental Health, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
| | - Chu Chu
- Guangdong Provincial Engineering Technology Research Center of Environmental Pollution and Health Risk Assessment, Department of Occupational and Environmental Health, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China.
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5
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Thambirajah AA, Miliano RC, Abbott EA, Buday C, Shang D, Kwok H, Helbing CC. Dynamic cyp1a1 transcript responses in the caudal fin of coho salmon (Oncorhynchus kisutch) smolts to low sulfur marine diesel water accommodated fraction exposures and depuration. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2023; 256:106412. [PMID: 36716652 DOI: 10.1016/j.aquatox.2023.106412] [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: 11/15/2022] [Revised: 01/24/2023] [Accepted: 01/26/2023] [Indexed: 06/18/2023]
Abstract
Oil spills that occur in high traffic coastal environments can have profound consequences for the health of marine ecosystems and the commercial and social interests that are dependent upon these habitats. Given that the global reliance on marine fuels is not abating, it is imperative to develop sensitive and robust tools to monitor oil contamination and remediation in a timely manner. Such tools are increasingly important for ascertaining the immediate and long-term effects of oil contamination on species of interest and local habitats as water-soluble components of oils, such as polycyclic aromatic hydrocarbons (PAHs), can persist post-remediation. We previously demonstrated that 3-methylcholanthrene responsive cytochrome P450-1a (cyp1a1) transcript abundance in the liver and caudal fin of coho salmon smolts (Onchorhynchus kisutch) was sensitive to exposure to low sulfur marine diesel (LSMD) seawater accommodated fractions (seaWAF) in cold water. We expanded upon this paradigm by assessing the utility of the cyp1a1 transcript to track both exposure to LSMD seaWAF and recovery from exposure by measuring cyp1a1 abundance in coho smolts using quantitative polymerase chain reaction (qPCR). Smolts were exposed to either 100 mg/L LSMD seaWAF or clean seawater (control) for 4 days. Fish were then transferred to clean seawater for depuration and tissues sampled at 0, 1, 2, 4, and 8 days from both treatments. Livers and caudal fins were dissected from 40 smolts per group (ntotal = 400 smolts). The LSMD seaWAF-induced cyp1a1 transcript levels significantly decreased one day after depuration in the liver and caudal fin in a sex-independent manner in genotyped females and males. After four days of depuration, cyp1a1 transcript abundance decreased to baseline control levels, regardless of tissue or sex. The present study demonstrates the value of using the caudal fin as a reliable, sensitive, and non-lethal sampling and monitoring tool.
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Affiliation(s)
- Anita A Thambirajah
- Department of Biochemistry and Microbiology, University of Victoria, Victoria, British Columbia V8P 5C2, Canada
| | - Rachel C Miliano
- Pacific & Yukon Laboratory for Environmental Testing, Pacific Environmental Science Centre, Environment and Climate Change Canada, North Vancouver, British Columbia V7H 1B1, Canada
| | - Ethan A Abbott
- Department of Biochemistry and Microbiology, University of Victoria, Victoria, British Columbia V8P 5C2, Canada
| | - Craig Buday
- Pacific & Yukon Laboratory for Environmental Testing, Pacific Environmental Science Centre, Environment and Climate Change Canada, North Vancouver, British Columbia V7H 1B1, Canada
| | - Dayue Shang
- Pacific & Yukon Laboratory for Environmental Testing, Pacific Environmental Science Centre, Environment and Climate Change Canada, North Vancouver, British Columbia V7H 1B1, Canada
| | - Honoria Kwok
- Pacific & Yukon Laboratory for Environmental Testing, Pacific Environmental Science Centre, Environment and Climate Change Canada, North Vancouver, British Columbia V7H 1B1, Canada
| | - Caren C Helbing
- Department of Biochemistry and Microbiology, University of Victoria, Victoria, British Columbia V8P 5C2, Canada.
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Shen C, Zhao X, He C, Zuo Z. Developmental toxicity and neurotoxicity assessment of R-, S-, and RS-propylene glycol enantiomers in zebrafish (Danio rerio) larvae. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:30537-30547. [PMID: 35000155 DOI: 10.1007/s11356-021-17538-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2021] [Accepted: 11/11/2021] [Indexed: 06/14/2023]
Abstract
Propylene glycol (PG) is widely used in the foods, pharmaceuticals, oil industry, animal feed, cosmetics and other industries. Because of the existence of a chiral carbon center, PG forms R (Rectus)- and S (Sinister)-enantiomers. Currently, the toxicity study of its R-, S-enantiomers is still very scarce. In this study, we have assessed the developmental toxicity and neurotoxicity of the R-, S-, and RS-PG enantiomers in zebrafish larvae. We found that exposure to R-, S-, and RS-PG enantiomers did not significantly affect the basic developmental endpoints of embryos or larvae (i.e., embryonic movement, hatching, mortality, malformation, heartbeat, body length), indicating that R-, S-, and RS-PG exposures did not exhibit the basic developmental toxicity in zebrafish larvae. The toxicity of three enantiomers was lower than that of ethanol, and there was no significant difference between them. However, R-, S-, and RS-PG exposures with high doses could significantly change the eye diameter and locomotor activity of larval zebrafish, indicating that R-, S-, and RS-PG enantiomers of high doses could potentially exhibit the neurotoxicity and ocular developmental toxicity in zebrafish larvae. Therefore, the potential neurotoxicity and ocular developmental toxicity of R-, S-, and RS-PG enantiomers for infants and toddlers should be considered.
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Affiliation(s)
- Chao Shen
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen, 361005, Fujian, China
| | - Xijing Zhao
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen, 361005, Fujian, China
| | - Chengyong He
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen, 361005, Fujian, China
| | - Zhenghong Zuo
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen, 361005, Fujian, China.
- State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen, 361005, Fujian, China.
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Wang Z, Zhao H, Xu Y, Zhao J, Song Z, Bi Y, Li Y, Lan X, Pan C, Foulkes NS, Zhang S. Early-life lead exposure induces long-term toxicity in the central nervous system: From zebrafish larvae to juveniles and adults. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 804:150185. [PMID: 34509844 DOI: 10.1016/j.scitotenv.2021.150185] [Citation(s) in RCA: 36] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Revised: 09/01/2021] [Accepted: 09/02/2021] [Indexed: 06/13/2023]
Abstract
Lead induced neurotoxicity has been extensively investigated. However, the potential connections between early-life lead exposure and the frequently observed aberrant neurobehavior in juveniles and adults remain unclear. In this study, zebrafish model was used to explore the immediate and long-term effects of early-life exposure to environmental levels of lead on the central nervous system, and the cellular and molecular mechanisms underlying the consequent abnormal neurobehavior. Lead exposed zebrafish larvae exhibited neurologic damage and defective neurobehavior. Consistent with clinical studies, despite being raised in lead-free conditions, the juvenile and adult fish experienced lead exposure earlier, presented ADHD-like symptoms, and the adult fish exhibited remarkably affected vitality and shoaling behavior. Their anxiety levels were elevated, whereas their social interaction, as well as learning and memory were strongly depressed. The expression profiles of key genes involved in neurodevelopment and neurotransmitter systems were significantly modulated, in similar patterns as in the larval stage. Notably, the density of neurons was decreased and varicosities in neuronal axons were frequently observed in the lead-exposed groups. It's tempting to speculate that the disruption of early neurodevelopment as well as the prolonged modulation of neuromorphic and neurotransmitter systems contribute to the lead-induced neurobehavioral disorders observed in juveniles and adulthood.
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Affiliation(s)
- Zuo Wang
- School of Life Sciences, Gansu Key Laboratory of Biomonitoring and Bioremediation for Environmental Pollution, Lanzhou University, No. 222 South Tianshui Road, Lanzhou 730000, Gansu Province, China
| | - Haiyu Zhao
- School of Life Sciences, Gansu Key Laboratory of Biomonitoring and Bioremediation for Environmental Pollution, Lanzhou University, No. 222 South Tianshui Road, Lanzhou 730000, Gansu Province, China.
| | - Yanyi Xu
- School of Life Sciences, Gansu Key Laboratory of Biomonitoring and Bioremediation for Environmental Pollution, Lanzhou University, No. 222 South Tianshui Road, Lanzhou 730000, Gansu Province, China
| | - Jianing Zhao
- School of Life Sciences, Gansu Key Laboratory of Biomonitoring and Bioremediation for Environmental Pollution, Lanzhou University, No. 222 South Tianshui Road, Lanzhou 730000, Gansu Province, China; Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, No. 22 Xinong Road, Yangling 712100, Shaanxi Province, China
| | - Zan Song
- School of Life Sciences, Gansu Key Laboratory of Biomonitoring and Bioremediation for Environmental Pollution, Lanzhou University, No. 222 South Tianshui Road, Lanzhou 730000, Gansu Province, China
| | - Yi Bi
- School of Life Sciences, Gansu Key Laboratory of Biomonitoring and Bioremediation for Environmental Pollution, Lanzhou University, No. 222 South Tianshui Road, Lanzhou 730000, Gansu Province, China; Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, No. 22 Xinong Road, Yangling 712100, Shaanxi Province, China
| | - Yang Li
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, No. 22 Xinong Road, Yangling 712100, Shaanxi Province, China
| | - Xianyong Lan
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, No. 22 Xinong Road, Yangling 712100, Shaanxi Province, China
| | - Chuanying Pan
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, No. 22 Xinong Road, Yangling 712100, Shaanxi Province, China
| | - Nicholas S Foulkes
- Institute of Biological and Chemical Systems, Biological Information Processing (IBCS-BIP), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
| | - Shengxiang Zhang
- School of Life Sciences, Gansu Key Laboratory of Biomonitoring and Bioremediation for Environmental Pollution, Lanzhou University, No. 222 South Tianshui Road, Lanzhou 730000, Gansu Province, China
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8
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Philibert DA, Lyons DD, Tierney KB. Comparing the effects of unconventional and conventional crude oil exposures on zebrafish and their progeny using behavioral and genetic markers. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 770:144745. [PMID: 33736363 DOI: 10.1016/j.scitotenv.2020.144745] [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: 10/22/2020] [Revised: 12/07/2020] [Accepted: 12/21/2020] [Indexed: 06/12/2023]
Abstract
Diluted bitumen, also known as dilbit, is transported by rail and pipeline across Canada and the United States. Due to the fewer number of studies characterizing the toxicity of dilbit, a dilbit spill poses an unknown risk to freshwater aquatic ecosystems. In the following study, we compared the impact of early-life exposure to conventional and unconventional crude oils on the optomotor behavior, reproductive success, and transgenerational differences in gene expression in zebrafish and their progeny. For exposures, water accommodated fractions (WAFs) of crude oil were generated using a 1:1000 oil to water ratio for 3 different crudes; mixed sweet blend (MSB), medium sour composite (MSC) and dilbit. All three oils generated unique volatile organic compound (VOC) and polycyclic aromatic compound (PAC) profiles. Of the WAFs tested, only dilbit decreased the eye size of 2 dpf larvae, and only MSB exposed larvae had an altered behavioral response to a visual simulation of a predator. Early-life exposure to crude oil had no lasting impact on reproductive success of adult fish; however, each oil had unique impacts on the basal gene expression of the somatically exposed offspring. In this study, the biological effects differed between each of the oils tested, which implied chemical composition plays a critical role in determining the sublethal toxicity of conventional and unconventional crude oils in freshwater ecosystems.
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Affiliation(s)
- Danielle A Philibert
- Huntsman Marine Science Centre, St. Andrews, New Brunswick E5B 2L7, Canada; Department of Biological Sciences, University of Alberta, Edmonton, Alberta T6G 2E9, Canada.
| | - Danielle D Lyons
- Department of Biological Sciences, University of Alberta, Edmonton, Alberta T6G 2E9, Canada
| | - Ketih B Tierney
- Huntsman Marine Science Centre, St. Andrews, New Brunswick E5B 2L7, Canada; School of Public Health, University of Alberta, Edmonton, Alberta T6G 2E9, Canada
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9
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Philibert DA, Lyons DD, Tierney KB. Early-life exposure to weathered, unweathered and dispersed oil has persisting effects on ecologically relevant behaviors in sheepshead minnow. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2020; 205:111289. [PMID: 32949839 DOI: 10.1016/j.ecoenv.2020.111289] [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: 04/04/2020] [Revised: 09/01/2020] [Accepted: 09/03/2020] [Indexed: 06/11/2023]
Abstract
The Deepwater Horizon oil spill released 3.19 million barrels of crude oil into the Gulf of Mexico, making it the largest oil spill in U.S. history. Weathering and the application of dispersants can alter the solubility of compounds within crude oil, thus modifying the acute toxicity of the crude oil to aquatic life. The primary aim of our study was to determine the lasting impact of early-life stage sheepshead minnow (Cyprinodon variegatus variegatus) exposure to weathered, unweathered and dispersed crude oil on prey capture, male aggression, novel object interaction and global DNA methylation. Embryos were exposed from 1 to 10 dpf to water accommodations of crude oil and were raised to adulthood in artificial seawater. Our results suggest exposure to crude oil did not result in lasting impairment of complex behavioral responses of male sheepshead minnow. Exposure to dispersed weathered oil, however, decreased border dwelling in response to a novel object (i.e. decreased anxiety). Principal component analysis revealed that exposure to weathered oil had no overarching effect, but that unweathered crude oil increased variability in exploratory behaviors but decreased variability in anxiety-associated behaviors. Further work is needed to understand the effects of oil exposure on fish behavior and the potential ecological impact of subtle behavioral changes in fishes.
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Affiliation(s)
- Danielle A Philibert
- Department of Biological Sciences, University of Alberta, Edmonton, Alberta, T6G 2E9, Canada; Huntsman Marine Science Centre, St. Andrews, NB, E5B 2L7, Canada.
| | - Danielle D Lyons
- Department of Biological Sciences, University of Alberta, Edmonton, Alberta, T6G 2E9, Canada
| | - Keith B Tierney
- Department of Biological Sciences, University of Alberta, Edmonton, Alberta, T6G 2E9, Canada; School of Public Health, University of Alberta, Edmonton, Alberta, T6G 2E9, Canada
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10
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Shen C, Zuo Z. Zebrafish (Danio rerio) as an excellent vertebrate model for the development, reproductive, cardiovascular, and neural and ocular development toxicity study of hazardous chemicals. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:43599-43614. [PMID: 32970263 DOI: 10.1007/s11356-020-10800-5] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2020] [Accepted: 09/09/2020] [Indexed: 06/11/2023]
Abstract
In the past decades, the type of chemicals has gradually increased all over the world, and many of these chemicals may have a potentially toxic effect on human health. The zebrafish, as an excellent vertebrate model, is increasingly used for assessing chemical toxicity and safety. This review summarizes the efficacy of zebrafish as a model for the study of developmental toxicity, reproductive toxicity, cardiovascular toxicity, neurodevelopmental toxicity, and ocular developmental toxicity of hazardous chemicals, and the transgenic zebrafish as biosensors are used to detect the environmental pollutants.
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Affiliation(s)
- Chao Shen
- Key Laboratory of Ministry of Education for Subtropical Wetland Ecosystem Research, School of Life Sciences, Xiamen University, Xiangan South Road, Xiamen, 361002, Fujian, China
| | - Zhenghong Zuo
- Key Laboratory of Ministry of Education for Subtropical Wetland Ecosystem Research, School of Life Sciences, Xiamen University, Xiangan South Road, Xiamen, 361002, Fujian, China.
- State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen, 361002, Fujian, China.
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11
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Shen C, Zhou Y, Tang C, He C, Zuo Z. Developmental exposure to mepanipyrim induces locomotor hyperactivity in zebrafish (Danio rerio) larvae. CHEMOSPHERE 2020; 256:127106. [PMID: 32447115 DOI: 10.1016/j.chemosphere.2020.127106] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Revised: 05/14/2020] [Accepted: 05/15/2020] [Indexed: 06/11/2023]
Abstract
Mepanipyrim is a widely used fungicide, and residues of mepanipyrim are frequently detected in commodities. However, the neurotoxicity and underlying mechanisms of mepanipyrim are still insufficiently understood. In this study, zebrafish embryos at 0.5-1.0 post-fertilization hours (hpf) were exposed to 0.1, 1, 10 and 100 μg/L mepanipyrim for 7 days. Our results showed that mepanipyrim could cause the locomotor hyperactivity and increase the concentration of γ-amino butyric acid (GABA) and the Na+/K+- and Ca2+-ATPase activities in zebrafish larvae. We have conducted the RNA-sequence and RT-qPCR to analyze the gene expressions. The mRNA expression levels of calcium/sodium ion conduction associated genes were observably up-regulated, demonstrating that mepanipyrim could enhance the cell energy metabolism, the synaptic transmission and skeletal muscle contraction, which were consistent with the locomotor hyperactivity. Meanwhile, exposure to mepanipyrim could significantly change the gene expression levels of gad1, bdnf, nlgn1, and type A and B GABA receptors in zebrafish larvae. This is the first study focusing on the underlying mechanisms of the neurotoxic effects that are induced by mepanipyrim.
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Affiliation(s)
- Chao Shen
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen, Fujian, 361005, China
| | - Yixi Zhou
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen, Fujian, 361005, China
| | - Chen Tang
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen, Fujian, 361005, China
| | - Chengyong He
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen, Fujian, 361005, China
| | - Zhenghong Zuo
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen, Fujian, 361005, China; State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen, Fujian, 361005, China.
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12
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Park K, Han EJ, Ahn G, Kwak IS. Effects of thermal stress-induced lead (Pb) toxicity on apoptotic cell death, inflammatory response, oxidative defense, and DNA methylation in zebrafish (Danio rerio) embryos. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2020; 224:105479. [PMID: 32417751 DOI: 10.1016/j.aquatox.2020.105479] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/19/2019] [Revised: 03/01/2020] [Accepted: 03/24/2020] [Indexed: 06/11/2023]
Abstract
Lead (Pb) is a toxic environmental pollutant that is frequently present in effluents from urban, mining, and industrial sources. The combinatorial effects of heavy metal exposure and temperature in aquatic organisms have received considerable attention as heat stress occurs simultaneously in conjunction with several contaminants in a natural environment. In this study, we examined the potential effects of Pb exposure in conditions of thermal stress (34 °C) in zebrafish (Danio rerio) embryos. Thermal stress at 34 °C induced a dramatic decrease in the survival rate, although exposure to Pb at 26 °C decreased the survival rate of the embryos. Malformations, such as the curved body shape, were increased in response to exposure to a combination of Pb and heat stress. The combination of Pb and heat stress also caused a decrease in the heart rate. Moreover, Pb and high-temperature exposure induced the upregulation of SOD, CAT, TNF-α, IL-1β, p53, and BAX transcripts, and downregulation of Dnmt1 and Dnmt3b transcripts. Thermal stress enhanced transcriptional responses of eight indicator genes following Pb toxicity. The induction of cell death in response to combined exposures was also confirmed in the body of zebrafish by fluorescence intensity image analysis. These data indicated that thermal stress enhanced the poisonous effects of Pb exposure on antioxidant defense, inflammation, and apoptotic mechanisms. Transcriptional inhibition of DNA methylation-related genes might serve as a crucial factor contributing to the possibility of epigenetic adaptation by altering combined stress. We suggest that a careful evaluation of the potential effects of climate change (especially temperature) should be considered when investigating the toxic levels of metal pollution, such as Pb, in an aquatic environment.
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Affiliation(s)
- Kiyun Park
- Fisheries Science Institute, Chonnam National University, Yeosu, 59626, South Korea
| | - Eui Jeong Han
- Department of Marine Bio-food Science, College of Fisheries and Ocean Sciences, Chonnam National University, 500-749, South Korea
| | - Ginnae Ahn
- Department of Marine Bio-food Science, College of Fisheries and Ocean Sciences, Chonnam National University, 500-749, South Korea
| | - Ihn-Sil Kwak
- Fisheries Science Institute, Chonnam National University, Yeosu, 59626, South Korea; Faculty of Marine Technology, Chonnam National University, Yeosu, 550-749, South Korea.
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He R, Zhao L, Xu X, Zheng W, Zhang J, Zhang J, Yan Q, Huang L. Aryl hydrocarbon receptor is required for immune response in Epinephelus coioides and Danio rerio infected by Pseudomonas plecoglossicida. FISH & SHELLFISH IMMUNOLOGY 2020; 97:564-570. [PMID: 31891808 DOI: 10.1016/j.fsi.2019.12.084] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2019] [Revised: 12/22/2019] [Accepted: 12/27/2019] [Indexed: 06/10/2023]
Abstract
Aryl hydrocarbon receptor (AhR), a ligand-dependent transcriptional factor that responds to environmental chemicals, has been recently found to be closely associated with immune response in mammals. Pseudomonas plecoglossicida (P. plecoglossicida) is a temperature-dependent bacterial pathogen of visceral white spot disease in fish. Using dual RNA-seq, we previously evaluated the expression levels of ahr1a, ahr1b, ahr2 and cyp1a in the spleen of Epinephelus coioides at different time points after infection with P. plecoglossicida. In the present study, the expression levels of ahr1a, ahr1b, ahr2 and cyp1a in different organs of E. coioides and Danio rerio showed similar trends after being infected by P. plecoglossicida. It also was noted that liver, intestine, spleen, and heart were the most obviously affected organs, and ahr2 particularly showed a dramatically increase in the spleen. Subsequently, macrophages of E. coioides were isolated, and then infected by P. plecoglossicida, followed by quantitative reverse transcription polymerase chain reaction (qRT-PCR) assay, which revealed that the expression level of ahr1a in macrophages was significantly down-regulated, while expression levels of ahr1b, ahr2 and cyp1a were noticeably up-regulated. Eventually, it was noted that ahr1b and ahr2 were knocked-down in macrophages, and intracellular survival rate and immune escape rate of P. plecoglossicida were markedly improved. Taken together, ahr1a, ahr1b, ahr2 and cyp1a participate in the immune response to P. plecoglossicida in different organs of fish, while ahr1b and ahr2 may play pivotal roles in the immune response of spleen and macrophages.
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Affiliation(s)
- Rongchao He
- Fisheries College, Key Laboratory of Healthy Mariculture for the East China Sea, Ministry of Agriculture, Jimei University, Xiamen, Fujian, PR China
| | - Lingmin Zhao
- Fisheries College, Key Laboratory of Healthy Mariculture for the East China Sea, Ministry of Agriculture, Jimei University, Xiamen, Fujian, PR China
| | - Xiaojin Xu
- Fisheries College, Key Laboratory of Healthy Mariculture for the East China Sea, Ministry of Agriculture, Jimei University, Xiamen, Fujian, PR China
| | - Weiqiang Zheng
- State Key Laboratory of Large Yellow Croaker Breeding, Ningde, Fujian, 352000, PR China
| | - Jiaonan Zhang
- Key Laboratory of Special Aquatic Feed for Fujian, Fujian Tianma Technology Company Limited, Fuzhou, Fujian, 350308, China
| | - Jiaolin Zhang
- Key Laboratory of Special Aquatic Feed for Fujian, Fujian Tianma Technology Company Limited, Fuzhou, Fujian, 350308, China
| | - Qingpi Yan
- Fisheries College, Key Laboratory of Healthy Mariculture for the East China Sea, Ministry of Agriculture, Jimei University, Xiamen, Fujian, PR China.
| | - Lixing Huang
- Fisheries College, Key Laboratory of Healthy Mariculture for the East China Sea, Ministry of Agriculture, Jimei University, Xiamen, Fujian, PR China.
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14
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Yan J, Chen S, Zuo Z, He C, Yi M. Graphene oxide quantum dot exposure induces abnormalities in locomotor activities and mechanisms in zebrafish (
Danio rerio
). J Appl Toxicol 2020; 40:794-803. [DOI: 10.1002/jat.3944] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2019] [Revised: 12/21/2019] [Accepted: 12/23/2019] [Indexed: 12/17/2022]
Affiliation(s)
- Jinhui Yan
- School of KinesiologyShanghai University of Sport Shanghai China
- College of Physical EducationJimei University Xiamen Fujian China
| | - Shujing Chen
- State Key Laboratory of Cellular Stress Biology, School of Life SciencesXiamen University Xiamen Fujian China
| | - Zhenghong Zuo
- State Key Laboratory of Cellular Stress Biology, School of Life SciencesXiamen University Xiamen Fujian China
| | - Chengyong He
- State Key Laboratory of Cellular Stress Biology, School of Life SciencesXiamen University Xiamen Fujian China
| | - Muqing Yi
- School of KinesiologyShanghai University of Sport Shanghai China
- Center for Sports NutritionNational Institute of Sports Medicine Beijing China
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15
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Yang H, Liu R, Liang Z, Zheng R, Yang Y, Chai L, Wang H. Chronic effects of lead on metamorphosis, development of thyroid gland, and skeletal ossification in Bufo gargarizans. CHEMOSPHERE 2019; 236:124251. [PMID: 31310984 DOI: 10.1016/j.chemosphere.2019.06.221] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2019] [Revised: 06/27/2019] [Accepted: 06/28/2019] [Indexed: 06/10/2023]
Abstract
We examined the Pb2+ exposure on tadpoles of Bufo gargarizans from Gosner stage 26-42. Mortality, growth and development, time to metamorphosis, size, and skeletal ossification at metamorphic climax of Bufo gargarizans were examined. Also, histological characteristics of thyroid glands in tadpoles at Gosner stage 33, 38, and 42 as well as transcript levels of thyroid hormone-related genes in the hind-limb, tail, and liver of tadpoles at metamorphic climax were examined. Pb2+ exposure induced mortality in a concentration-dependent manner in Bufo gargarizans larvae. The significant increase in growth and development, percent metamorphosis, size at metamorphic climax, and skeletal ossification were observed at 50 μg Pb2+ L-1; however, exposure to 1000 μg Pb2+ L-1 resulted in the opposite effects in tadpoles. In addition, histological alterations of thyroid gland, such as follicular cell hyperplasia and colloid depletion could be found in 50-1000 μg Pb2+ L-1 treatments. Furthermore, Pb2+ exposure at 1000 μg L-1 resulted in significantly decreased transcript levels of Dio2, TRα and TRβ, and increased transcript levels of Dio3. In contrast, 50 μg Pb2+ L-1 significantly upregulated the mRNA levels of Dio2, TRα, and TRβ, but it reduced the Dio3 expression. These results suggested that Pb2+ might disrupt TH homeostasis in tadpoles by histological alterations of thyroid gland and disturb the transcript levels of Dio2, Dio3, TRα, and TRβ, leading to altered growth and development, as well as percent metamorphosis and skeletal ossification. Further studies are needed to elucidate the underlying mechanisms of low-dose stimulation and high-dose inhibition effects.
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Affiliation(s)
- Hongyu Yang
- College of Life Science, Shaanxi Normal University, Xi'an, 710119, China
| | - Rong Liu
- College of Life Science, Shaanxi Normal University, Xi'an, 710119, China
| | - Zhijia Liang
- College of Life Science, Shaanxi Normal University, Xi'an, 710119, China
| | - Rui Zheng
- College of Life Science, Shaanxi Normal University, Xi'an, 710119, China
| | - Yijie Yang
- School of Environmental Science and Engineering, Chang'an University, Xi'an, 710054, China; Key Laboratory of Subsurface Hydrology and Ecological Effect in Arid Region of Ministry of Education, Xi'an, 710062, China
| | - Lihong Chai
- School of Environmental Science and Engineering, Chang'an University, Xi'an, 710054, China; Key Laboratory of Subsurface Hydrology and Ecological Effect in Arid Region of Ministry of Education, Xi'an, 710062, China
| | - Hongyuan Wang
- College of Life Science, Shaanxi Normal University, Xi'an, 710119, China.
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16
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Li X, Xiong D, Ding G, Fan Y, Ma X, Wang C, Xiong Y, Jiang X. Exposure to water-accommodated fractions of two different crude oils alters morphology, cardiac function and swim bladder development in early-life stages of zebrafish. CHEMOSPHERE 2019; 235:423-433. [PMID: 31272002 DOI: 10.1016/j.chemosphere.2019.06.199] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2019] [Revised: 06/25/2019] [Accepted: 06/25/2019] [Indexed: 06/09/2023]
Abstract
The present study investigated the developmental toxicity of water-accommodated fractions (WAFs) of Oman crude oil (OCO) and Merey crude oil (MCO) on zebrafish (Danio rerio) in early-life stages (ELS). Based on total petroleum hydrocarbons (TPH), LC50 values manifested that OCO WAF was 1.2-fold more lethal to zebrafish embryos than MCO WAF. As for hatching rate, EC50 value for OCO WAF was 5.7-fold lower than that for MCO WAF. To evaluate the sublethal morphological effects, semi-quantitative extended general morphological score (GMS) and general teratogenic score (GTS) systems were adopted. The GMS and GTS scores indicated that the WAFs caused remarkable developmental delay and high frequencies of malformation in a dose-dependent manner. Additionally, OCO and MCO WAFs exposure exhibited severe bradycardia (reduced heart rate) and overt reduction of stroke volume, with a concomitant decrease in the cardiac output. Meanwhile, the WAFs also induced dose-dependent down-regulated expressions of several key functional genes of excitation-contraction coupling in cardiomyocytes, including ryr2, atp2a2a, atp2a2b, ncx1h, and kcnh2. For key gene markers of swim bladder development, results showed that high dose of TPH induced significant down-regulation of hb9 and anxa5 with no obvious change of acta2, suggesting that the WAFs could affect the specification and development of epithelium and outer mesothelium of swim bladder in zebrafish ELS. A strong negative relationship between the failure of swim bladder inflation and cardiac dysfunction via cardiac output was found. All these findings provide novel insights into the complicated mechanisms of the developmental toxicity of crude oil on fish in ELS.
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Affiliation(s)
- Xishan Li
- College of Environmental Science and Engineering, Dalian Maritime University, Dalian, 116026, China
| | - Deqi Xiong
- College of Environmental Science and Engineering, Dalian Maritime University, Dalian, 116026, China.
| | - Guanghui Ding
- College of Environmental Science and Engineering, Dalian Maritime University, Dalian, 116026, China
| | - Youmei Fan
- College of Environmental Science and Engineering, Dalian Maritime University, Dalian, 116026, China
| | - Xinrui Ma
- College of Environmental Science and Engineering, Dalian Maritime University, Dalian, 116026, China
| | - Chengyan Wang
- College of Environmental Science and Engineering, Dalian Maritime University, Dalian, 116026, China
| | - Yijun Xiong
- Biological Chemistry & Statistics, Grinnell College, IA, 50112, USA
| | - Xi Jiang
- China Railway No.9 Group Fourth Engineering Co., Ltd, Shenyang, 110013, China
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17
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Coupling Genome-wide Transcriptomics and Developmental Toxicity Profiles in Zebrafish to Characterize Polycyclic Aromatic Hydrocarbon (PAH) Hazard. Int J Mol Sci 2019; 20:ijms20102570. [PMID: 31130617 PMCID: PMC6566387 DOI: 10.3390/ijms20102570] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2019] [Revised: 05/23/2019] [Accepted: 05/23/2019] [Indexed: 01/13/2023] Open
Abstract
Polycyclic Aromatic Hydrocarbons (PAHs) are diverse environmental pollutants associated with adverse human health effects. Many studies focus on the carcinogenic effects of a limited number of PAHs and there is an increasing need to understand mechanisms of developmental toxicity of more varied yet environmentally relevant PAHs. A previous study characterized the developmental toxicity of 123 PAHs in zebrafish. Based on phenotypic responses ranging from complete inactivity to acute mortality, we classified these PAHs into eight bins, selected 16 representative PAHs, and exposed developing zebrafish to the concentration of each PAH that induced 80% phenotypic effect. We conducted RNA sequencing at 48 h post fertilization to identify gene expression changes as a result of PAH exposure. Using the Context Likelihood of Relatedness algorithm, we inferred a network that links the PAHs based on coordinated gene responses to PAH exposure. The 16 PAHs formed two broad clusters: Cluster A was transcriptionally more similar to the controls, while Cluster B consisted of PAHs that were generally more developmentally toxic, significantly elevated cyp1a transcript levels, and induced Ahr2-dependent Cyp1a protein expression in the skin confirmed by gene-silencing studies. We found that cyp1a transcript levels were associated with transcriptomic response, but not with PAH developmental toxicity. While all cluster B PAHs predominantly activated Ahr2, they also each enriched unique pathways like ion transport signaling, which likely points to differing molecular events between the PAHs downstream of Ahr2. Thus, using a systems biology approach, we have begun to evaluate, classify, and define mechanisms of PAH toxicity.
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18
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Imbery JJ, Buday C, Miliano RC, Shang D, Round JM, Kwok H, Van Aggelen G, Helbing CC. Evaluation of Gene Bioindicators in the Liver and Caudal Fin of Juvenile Pacific Coho Salmon in Response to Low Sulfur Marine Diesel Seawater-Accommodated Fraction Exposure. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2019; 53:1627-1638. [PMID: 30614687 DOI: 10.1021/acs.est.8b05429] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Low sulfur marine diesel (LSMD) is frequently involved in coastal spills and monitoring ecosystem damage, and the effectiveness of cleanup methods remains a challenge. The present study investigates the concentration and composition of polycyclic aromatic hydrocarbons (PAHs) dispersed in LSMD seawater accommodated fractions (WAFs) and assesses the effects of exposure on juvenile coho salmon ( Onchorhynchus kisutch). Three WAFs were prepared with 333, 1067, and 3333 mg/L LSMD. The sum of 50 common PAHs and alkylated PAHs (tPAH50) measured by gas chromatography/triple quadrupole mass spectrometry showed saturation at ∼90 mg/L for all WAFs. These WAFs were diluted 30% for 96 h fish exposures. qPCR was performed on liver and caudal fin from the same genotypically sexed individuals to evaluate PAH exposure, general and oxidative stress, estrogenic activity, and defense against metals. Excluding metal response, our analyses reveal significant changes in gene expression following WAF exposure on juvenile salmon with differential sensitivity between males and females. The 3-methylcholanthrene responsive cytochrome P450-1a ( cyp1a) transcript exhibited the greatest increase in transcript abundance in the caudal fin (10-18-fold) and liver (6-10-fold). This demonstrates that cyp1a is a robust, sex-independent bioindicator of oil exposure in caudal fin, a tissue that is amenable to nonlethal sampling.
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Affiliation(s)
- Jacob J Imbery
- Department of Biochemistry and Microbiology , University of Victoria , Victoria , British Columbia V8P 5C2 , Canada
| | - Craig Buday
- Pacific & Yukon Laboratory for Environmental Testing, Pacific Environmental Science Centre , Environment and Climate Change Canada , North Vancouver , British Columbia V7H 1B1 , Canada
| | - Rachel C Miliano
- Pacific & Yukon Laboratory for Environmental Testing, Pacific Environmental Science Centre , Environment and Climate Change Canada , North Vancouver , British Columbia V7H 1B1 , Canada
| | - Dayue Shang
- Pacific & Yukon Laboratory for Environmental Testing, Pacific Environmental Science Centre , Environment and Climate Change Canada , North Vancouver , British Columbia V7H 1B1 , Canada
| | - Jessica M Round
- Department of Biochemistry and Microbiology , University of Victoria , Victoria , British Columbia V8P 5C2 , Canada
| | - Honoria Kwok
- Pacific & Yukon Laboratory for Environmental Testing, Pacific Environmental Science Centre , Environment and Climate Change Canada , North Vancouver , British Columbia V7H 1B1 , Canada
| | - Graham Van Aggelen
- Pacific & Yukon Laboratory for Environmental Testing, Pacific Environmental Science Centre , Environment and Climate Change Canada , North Vancouver , British Columbia V7H 1B1 , Canada
| | - Caren C Helbing
- Department of Biochemistry and Microbiology , University of Victoria , Victoria , British Columbia V8P 5C2 , Canada
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Bautista NM, Pothini T, Meng K, Burggren WW. Behavioral consequences of dietary exposure to crude oil extracts in the Siamese fighting fish (Betta splendens). AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2019; 207:34-42. [PMID: 30513419 DOI: 10.1016/j.aquatox.2018.11.025] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2018] [Revised: 10/14/2018] [Accepted: 11/28/2018] [Indexed: 05/24/2023]
Abstract
Uptake by fishes of crude oil and its polycyclic aromatic hydrocarbons (PAHs) components occurs via gills, dietary intake, or diffusion through the skin. Dietary exposure to crude oil and its components is environmentally relevant, and induces physiological and morphological disruptions in fish. However, the impacts of crude oil on fish social and reproductive behaviors and thus the possible influences on reproductive success are poorly understood. As a part of their intraspecific interactions, male Siamese fighting fish (Betta splendens) exhibit highly stereotypic behavioral and territorial displays. This makes this species a tractable model for testing crude oil effects on behavior. After 2 weeks of acclimation at 29 °C, male adult betta fish were divided into three groups and fed for 4 weeks with food spiked with water (control), low oil concentrations or high oil concentrations (∑Total PAH concentrations 340, 3960 or 8820 ng/g dw, respectively) to determine subsequent alterations in behavioral displays. Compared with control fish, the aggressive display of "opercular flaring" was significantly increased (P < 0.03, n = 14-16) in oil-exposed fish. Bubble nest building, as well as testis and brain mass, were significantly reduced in treated fish (P < 0.05). Hematocrit of treated groups was increased significantly (P < 0.02) from 21% in control fish to ∼27% in both oil exposure groups. Dietary exposure over a 4-week period to low, relevant levels of crude oil thus leads to an increase in aggressive behavioral displays, a decrease in reproductive activity and additional morphological changes.
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Affiliation(s)
- Naim M Bautista
- Developmental Integrative Biology Research Group, Department of Biological Sciences, University of North Texas,1155 Union Circle #305220, Denton, TX, 76203-5017, USA.
| | - Tanushri Pothini
- Developmental Integrative Biology Research Group, Department of Biological Sciences, University of North Texas,1155 Union Circle #305220, Denton, TX, 76203-5017, USA
| | - Kelly Meng
- Developmental Integrative Biology Research Group, Department of Biological Sciences, University of North Texas,1155 Union Circle #305220, Denton, TX, 76203-5017, USA
| | - Warren W Burggren
- Developmental Integrative Biology Research Group, Department of Biological Sciences, University of North Texas,1155 Union Circle #305220, Denton, TX, 76203-5017, USA
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20
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Zhu QL, Li WY, Zheng JL. Life-cycle exposure to cadmium induced compensatory responses towards oxidative stress in the liver of female zebrafish. CHEMOSPHERE 2018; 210:949-957. [PMID: 30208555 DOI: 10.1016/j.chemosphere.2018.07.095] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2018] [Revised: 07/15/2018] [Accepted: 07/16/2018] [Indexed: 06/08/2023]
Abstract
The current study examined effects of waterborne cadmium (Cd) at environmental relevant concentrations (0, 2.5 and 5 μg/L) on growth, survival, histology, ultrastructure, metal homeostasis, and antioxidant responses in female zebrafish from embryos to sexually maturity for 15 weeks. Growth and survival rate were not significantly affected by Cd exposure. There were no significant changes in ultrastructure of cellular organelles, reactive oxygen species (ROS) levels, lipid peroxidation (LPO) in liver. However, Cd exposure increased Cd and lipid accumulation, reduced contents of zinc, copper and reduced glutathione (GSH), and down-regulated activity of copper/zinc-superoxide dismutase (Cu/Zn-SOD) in liver of zebrafish. Contrarily, the mRNA and activity levels of catalase (CAT), the mRNA levels of Cu/Zn-SOD, and the mRNA and protein levels of metallothioneins (MTs) were up-regulated. The transcriptional regulation of Cu and Zn transporters might be a vital mechanism by which fish slow the Zn and Cu uptake. Taken together, our data demonstrated that long-term and low-dose Cd induced adaptive responses with interlinked compensatory mechanism, which may protect fish against oxidative stress.
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Affiliation(s)
- Qing-Ling Zhu
- Zhejiang Ocean University, Zhoushan 316022, PR China
| | - Wei-Ye Li
- Zhoushan Fisheries Research Institute, Zhoushan 316022, PR China
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