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Zheng Y, Liu C, Chen J, Tang J, Luo J, Zou D, Tang Z, He J, Bai J. Integrated transcriptomic and biochemical characterization of the mechanisms governing stress responses in soil-dwelling invertebrate (Folsomia candida) upon exposure to dibutyl phthalate. JOURNAL OF HAZARDOUS MATERIALS 2024; 462:132644. [PMID: 37820532 DOI: 10.1016/j.jhazmat.2023.132644] [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: 07/13/2023] [Revised: 09/23/2023] [Accepted: 09/25/2023] [Indexed: 10/13/2023]
Abstract
Dibutyl phthalate (DBP) is one of the most commonly utilized plasticizers and a frequently detected phthalic acid ester (PAE) compound in soil samples. However, the toxicological effects of DBP on soil-dwelling organisms remain poorly understood. This study employed a multi-biomarker approach to investigate the impact of DBP exposure on Folsomia candida's survival, reproduction, enzyme activity levels, and transcriptional profiles. Analyses of antioxidant biomarkers, including catalase (CAT) and glutathione S-transferase (GST), as well as detoxifying enzymes such as acetylcholinesterase (AChE), Cytochrome P450 (CYP450), and lipid peroxidation (LPO), revealed significant increases in CAT activity, GST levels, and CYP450 expression following treatment with various doses of DBP for 2, 4, 7, or 14 days. Additionally, LPO induction was observed along with significant AChE inhibition. In total, 3175 differentially expressed genes (DEGs) were identified following DBP treatment that were enriched in six Gene Ontology (GO) terms and 144 Kyoto Encyclopedia of Genes and Genomes (KEGG) pathways, including 85 upregulated and 59 downregulated primarily associated with lipid metabolism, signal transduction, DNA repair, and cell growth and death. Overall these results provide foundational insights for further research into the molecular mechanisms underlying responses of soil invertebrates to DBP exposure.
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Affiliation(s)
- 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.
| | - Can Liu
- Hunan University of Humanities, Science and Technology, Loudi, Hunan 417000, China
| | - Jiayi Chen
- Hunan University of Humanities, Science and Technology, Loudi, Hunan 417000, China
| | - Jianquan Tang
- Hunan University of Humanities, Science and Technology, Loudi, Hunan 417000, China
| | - Jiali Luo
- Hunan University of Humanities, Science and Technology, Loudi, Hunan 417000, China
| | - Di Zou
- Hunan University of Humanities, Science and Technology, Loudi, Hunan 417000, China
| | - Zhen Tang
- Hunan University of Humanities, Science and Technology, Loudi, Hunan 417000, China
| | - Jiali He
- Hunan University of Humanities, Science and Technology, Loudi, Hunan 417000, China
| | - Jing Bai
- Hunan University of Humanities, Science and Technology, Loudi, Hunan 417000, China.
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Zhang L, Louie A, Rigutto G, Guo H, Zhao Y, Ahn S, Dahlberg S, Sholinbeck M, Smith MT. A systematic evidence map of chronic inflammation and immunosuppression related to per- and polyfluoroalkyl substance (PFAS) exposure. ENVIRONMENTAL RESEARCH 2023; 220:115188. [PMID: 36592815 PMCID: PMC10044447 DOI: 10.1016/j.envres.2022.115188] [Citation(s) in RCA: 15] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Revised: 12/26/2022] [Accepted: 12/28/2022] [Indexed: 06/01/2023]
Abstract
BACKGROUND The ability to induce chronic inflammation and immunosuppression are two key characteristics of carcinogens and important forms of immunotoxicity. The National Toxicology Program (NTP) evaluated the immunotoxicity of two per- and polyfluoroalkyl substances (PFASs), PFOA (perfluorooctanoic acid) and PFOS (perfluorooctane sulfonate), in 2016. However, the potential pro-inflammatory and immunosuppressive effects of other PFASs remain largely uncharacterized. METHODS We developed an expanded set of search terms pertaining to the chronic inflammatory and immunosuppressive effects of PFASs based on those of the International Agency for Research on Cancer (IARC) and NTP. To confirm searching effectiveness and scope, we compared our search term results with those of IARC and NTP for both PFASs and two other known carcinogens, chromium (VI) and benzene. Systematic evidence maps (SEMs) were also produced using Tableau to visualize the distribution of study numbers and types reporting immunotoxic effects and specific biomarkers elicited by PFAS exposures. RESULTS In total, 1155 PFAS studies were retrieved, of which 321 qualified for inclusion in our dataset. Using our search terms, we identified a greater number of relevant studies than those obtained using IARC and NTP's search terms. From the SEM findings, increased cytokine production strengthened an association between PFAS exposure and chronic inflammation, and decreased B-cell activation and altered levels of T-cell subtypes and immunoglobulins confirmed PFAS-induced immunosuppression. CONCLUSION Our SEM findings confirm that several PFASs commonly found in both in the environment, including those that are lesser-known, may induce immunosuppression and chronic inflammation, two key characteristics of carcinogens. This approach, including development of search terms, study screening process, data coding, and evidence mapping visualizations, can be applied to other key characteristics of chemical carcinogens.
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Affiliation(s)
- Luoping Zhang
- Division of Environmental Health Sciences, School of Public Health, University of California, Berkeley, CA, 94720, USA.
| | - Allen Louie
- Division of Environmental Health Sciences, School of Public Health, University of California, Berkeley, CA, 94720, USA; Molecular Toxicology Interdepartmental Program, Fielding School of Public Health, University of California, Los Angeles, CA, 90095, USA
| | - Gabrielle Rigutto
- Division of Environmental Health Sciences, School of Public Health, University of California, Berkeley, CA, 94720, USA
| | - Helen Guo
- Division of Environmental Health Sciences, School of Public Health, University of California, Berkeley, CA, 94720, USA
| | - Yun Zhao
- Division of Environmental Health Sciences, School of Public Health, University of California, Berkeley, CA, 94720, USA
| | - Stacy Ahn
- Division of Environmental Health Sciences, School of Public Health, University of California, Berkeley, CA, 94720, USA
| | - Sarah Dahlberg
- Division of Environmental Health Sciences, School of Public Health, University of California, Berkeley, CA, 94720, USA
| | - Michael Sholinbeck
- Bioscience, Natural Resources & Public Health Library, University of California, Berkeley, CA, 94720, USA
| | - Martyn T Smith
- Division of Environmental Health Sciences, School of Public Health, University of California, Berkeley, CA, 94720, USA
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Gundacker C, Audouze K, Widhalm R, Granitzer S, Forsthuber M, Jornod F, Wielsøe M, Long M, Halldórsson TI, Uhl M, Bonefeld-Jørgensen EC. Reduced Birth Weight and Exposure to Per- and Polyfluoroalkyl Substances: A Review of Possible Underlying Mechanisms Using the AOP-HelpFinder. TOXICS 2022; 10:toxics10110684. [PMID: 36422892 PMCID: PMC9699222 DOI: 10.3390/toxics10110684] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Revised: 11/04/2022] [Accepted: 11/07/2022] [Indexed: 05/14/2023]
Abstract
Prenatal exposure to per- and polyfluorinated substances (PFAS) may impair fetal growth. Our knowledge of the underlying mechanisms is incomplete. We used the Adverse Outcome Pathway (AOP)-helpFinder tool to search PubMed for studies published until March 2021 that examined PFAS exposure in relation to birth weight, oxidative stress, hormones/hormone receptors, or growth signaling pathways. Of these 1880 articles, 106 experimental studies remained after abstract screening. One clear finding is that PFAS are associated with oxidative stress in in vivo animal studies and in vitro studies. It appears that PFAS-induced reactive-oxygen species (ROS) generation triggers increased peroxisome proliferator-activated receptor (PPAR)γ expression and activation of growth signaling pathways, leading to hyperdifferentiation of pre-adipocytes. Fewer proliferating pre-adipocytes result in lower adipose tissue weight and in this way may reduce birth weight. PFAS may also impair fetal growth through endocrine effects. Estrogenic effects have been noted in in vivo and in vitro studies. Overall, data suggest thyroid-damaging effects of PFAS affecting thyroid hormones, thyroid hormone gene expression, and histology that are associated in animal studies with decreased body and organ weight. The effects of PFAS on the complex relationships between oxidative stress, endocrine system function, adipogenesis, and fetal growth should be further explored.
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Affiliation(s)
- Claudia Gundacker
- Institute of Medical Genetics, Medical University of Vienna, 1090 Vienna, Austria
- Correspondence: ; Tel.: +43-1-40160-56503
| | - Karine Audouze
- Unit T3S, Université Paris Cité, Inserm U1124, 75006 Paris, France
| | - Raimund Widhalm
- Institute of Medical Genetics, Medical University of Vienna, 1090 Vienna, Austria
| | - Sebastian Granitzer
- Institute of Medical Genetics, Medical University of Vienna, 1090 Vienna, Austria
| | - Martin Forsthuber
- Institute of Medical Genetics, Medical University of Vienna, 1090 Vienna, Austria
| | - Florence Jornod
- Unit T3S, Université Paris Cité, Inserm U1124, 75006 Paris, France
| | - Maria Wielsøe
- Department of Public Health, Aarhus University, 8000 Aarhus, Denmark
| | - Manhai Long
- Department of Public Health, Aarhus University, 8000 Aarhus, Denmark
| | - Thórhallur Ingi Halldórsson
- Faculty of Food Science and Nutrition, University of Iceland, 102 Reykjavík, Iceland
- Department of Epidemiology Research, Statens Serum Institut, 2300 Copenhagen, Denmark
| | - Maria Uhl
- Environment Agency Austria, 1090 Vienna, Austria
| | - Eva Cecilie Bonefeld-Jørgensen
- Department of Public Health, Aarhus University, 8000 Aarhus, Denmark
- Greenland Center for Health Research, Greenland University, Nuuk 3905, Greenland
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Bao X, Wang W, Yuan T, Li Y, Chen X, Liu X, Xu X, Sun G, Li B, Yang J, Feng Y, Li Z. Transcriptome profiling based on larvae at different time points after hatching provides a core set of gene resource for understanding the immune response mechanisms of the egg-protecting behavior against Vibrio anguillarum infection in Amphioctopus fangsiao. FISH & SHELLFISH IMMUNOLOGY 2022; 124:430-441. [PMID: 35472401 DOI: 10.1016/j.fsi.2022.04.030] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2021] [Revised: 04/17/2022] [Accepted: 04/20/2022] [Indexed: 06/14/2023]
Abstract
Mollusks have recently received increasing attention because of their unique immune systems. Mollusks such as Amphioctopus fangsiao are economically important cephalopods, and the effects of their egg-protecting behavior on the larval immune response are unclear. Meanwhile, little research has been done on the resistance response of cephalopod larvae infected with pathogenic bacteria such as Vibrio anguillarum. In this study, V. anguillarum was used to infect the primary hatching A. fangsiao larvae under different egg-protecting behaviors for 24 h, and a total of 7156 differentially expressed genes (DEGs) were identified at four time points after hatching based on transcriptome analysis. GO and KEGG enrichment analyses showed that multiple immune-related GO terms and KEGG signaling pathways were enriched. Protein-protein interaction networks (PPI networks) were used to search functional relationships between immune-related DEGs. Finally, 20 hub genes related to multiple gene functions or involved in multiple signaling pathways were identified, and their accuracy was verified using quantitative RT-PCR. PPI networks were first used to study the effects A. fangsiao larvae after infection with V. anguillarum under different egg-protecting behaviors. The results provide significant genetic resources for exploring invertebrate larval immune processes. The data lays a foundation for further study the immune response mechanisms for invertebrates after infection.
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Affiliation(s)
- Xiaokai Bao
- School of Agriculture, Ludong University, Yantai, 264025, China
| | - Weijun Wang
- School of Agriculture, Ludong University, Yantai, 264025, China
| | - Tingzhu Yuan
- Marine Economy Promotion Center of Changdao County Marine Ecological Civilization Comprehensive Experimental Zone, Yantai, 265800, China
| | - Yan Li
- School of Agriculture, Ludong University, Yantai, 264025, China
| | - Xipan Chen
- School of Agriculture, Ludong University, Yantai, 264025, China
| | - Xiumei Liu
- College of Life Sciences, Yantai University, Yantai, 264005, China
| | - Xiaohui Xu
- School of Agriculture, Ludong University, Yantai, 264025, China
| | - Guohua Sun
- School of Agriculture, Ludong University, Yantai, 264025, China
| | - Bin Li
- School of Agriculture, Ludong University, Yantai, 264025, China; Yantai Haiyu Marine Science and Technology Co. Ltd., Yantai, 264004, China
| | - Jianmin Yang
- School of Agriculture, Ludong University, Yantai, 264025, China
| | - Yanwei Feng
- School of Agriculture, Ludong University, Yantai, 264025, China.
| | - Zan Li
- School of Agriculture, Ludong University, Yantai, 264025, China.
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Gao Z, Pan L, Xu R, Zhou Y, Li D. Insights into disruption of lipid metabolism in digestive gland of female scallop Chlamys farreri under B[a]P exposure. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2022; 299:118904. [PMID: 35091022 DOI: 10.1016/j.envpol.2022.118904] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Revised: 01/20/2022] [Accepted: 01/23/2022] [Indexed: 06/14/2023]
Abstract
Lipids are the main energy support during gametogenesis. Digestive gland is the key organ of aquatic animal metabolism for storing nutrition and supplying energy. It participates in a variety of life activities (such as growth, digestion, immunity, and reproduction). Nutrients stored in digestive glands, especially lipids, provide energy for reproductive behaviors such as gametogenesis and ovulation. A large number of studies have confirmed the accumulation of lipids from digestive gland to gonad during gametogenesis. At present, the research on the interference mechanism of persistent organic pollutants (POPs) on lipid metabolism of aquatic animals and the adaptive response of aquatic animals to POPs stress focus on biochemical levels or a few genes. The potential molecular mechanism of lipid metabolism interference needs to be further studied. In addition, as an important stage of aquatic animals, the reproductive period is a vigorous period of lipid metabolism. However, at present, there is no report on the molecular mechanism of POPs interfering with the lipid metabolism of the digestive gland in the reproductive process of aquatic animals. In this study, female scallop C. farreri was cultured in natural seawater and exposed to 4 μg/L B[a]P in seawater. Transcriptome analysis of digestive glands at multiple stages (proliferative stage, growth stage, mature stage and spawn stage) was performed, and iPath pathway analysis was used to analyze lipid metabolism pathways and differential genes. The interference mechanism of lipid metabolism in bivalves during reproductive period was revealed. This study will provide valuable genomic information on the role of digestive glands in lipid metabolism and reproduction of C. farreri, and will contribute to further functional genomics of bivalves and other closely related species.
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Affiliation(s)
- Zhongyuan Gao
- The Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao, 266003, China
| | - Luqing Pan
- The Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao, 266003, China.
| | - Ruiyi Xu
- The Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao, 266003, China
| | - Yueyao Zhou
- The Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao, 266003, China
| | - Dongyu Li
- The Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao, 266003, China
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Beale DJ, Hillyer K, Nilsson S, Limpus D, Bose U, Broadbent JA, Vardy S. Bioaccumulation and metabolic response of PFAS mixtures in wild-caught freshwater turtles (Emydura macquariimacquarii) using omics-based ecosurveillance techniques. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 806:151264. [PMID: 34715216 DOI: 10.1016/j.scitotenv.2021.151264] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Revised: 10/14/2021] [Accepted: 10/22/2021] [Indexed: 06/13/2023]
Abstract
PFAS mixtures in the environment are common and identifying PFAS constituents, bioaccumulation, and biological impacts of mixtures remains a challenge. Here, an omics-based ecosurveillance approach was taken to investigate the impacts of PFAS pollution in freshwater turtles (Emydura macquariimacquarii). Four turtles were collected from an impacted waterway downstream from an industrial source of PFAS contamination in Queensland, Australia and analysed for 49 different PFAS. One turtle was collected from a suitable control site. PFAS concentrations were quantified in turtle serum using an established targeted methodology. The serum PFAS concentration was ten-fold greater at the impacted site (Σ49 PFAS 1933 ± 481 ng/mL) relative to the control sample (Σ49 PFAS 140 ng/mL). Perfluorooctane sulfonate (PFOS; 889 ± 56 ng/mL) was 235 times higher in turtle serum than in the water that they were collected from (ΣPFAS 32.0 μg/L). Perfluorobutane sulfonamide (FBSA; 403 ± 83 ng/mL) and perfluorohexane sulfonamide (FHxSA; 550 ± 330 ng/mL) were also reported at substantial concentrations in the serum of impacted turtles. Biochemical profiles were analysed using a mixture of liquid chromatography triple quadrupole (QqQ) and quadrupole time-of-flight (QToF) mass spectrometry methodologies. These profiles demonstrated a positive correlation in the impacted turtles exposed to elevated PFAS with an enhanced purine metabolism, glycerophosphocholines and an innate immune response, which suggest an inflammation response, metabolic preservation and re-routing of central carbon metabolites. Conversely, lipid transport and binding activity were negatively correlated. Using these preliminary data, we were able to demonstrate the negative metabolic impact from PFAS mixtures on turtle metabolic health. With further research on a larger turtle cohort, omics-based data will contribute towards linking adverse outcome pathways for turtle populations exposed to PFAS mixtures. Moreover, expanding the use of ecosurveillance tools will inform mechanistic toxicological data for risk assessment and regulatory applications.
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Affiliation(s)
- David J Beale
- Land and Water, Commonwealth Scientific and Industrial Research Organisation, Ecosciences Precinct, Dutton Park, QLD 4102, Australia.
| | - Katie Hillyer
- Land and Water, Commonwealth Scientific and Industrial Research Organisation, Ecosciences Precinct, Dutton Park, QLD 4102, Australia
| | - Sandra Nilsson
- Queensland Alliance for Environmental Health Sciences, The University of Queensland, Woolloongabba, QLD 4102, Australia
| | - Duncan Limpus
- Aquatic Threatened Species, Wildlife and Threatened Species Operations, Department of Environment and Science, Queensland Government, Australia
| | - Utpal Bose
- Agriculture and Food, Commonwealth Scientific and Industrial Research Organisation, Queensland Bioscience Precinct, St Lucia, QLD 4067, Australia
| | - James A Broadbent
- Agriculture and Food, Commonwealth Scientific and Industrial Research Organisation, Queensland Bioscience Precinct, St Lucia, QLD 4067, Australia
| | - Suzanne Vardy
- Water Quality and Investigation, Science and Technology Division, Department of Environment and Science, Queensland Government, Australia
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Jiang W, Fang J, Du M, Gao Y, Fang J, Jiang Z. Integrated transcriptomics and metabolomics analyses reveal benzo[a]pyrene enhances the toxicity of mercury to the Manila clam, Ruditapes philippinarum. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2021; 213:112038. [PMID: 33636467 DOI: 10.1016/j.ecoenv.2021.112038] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2020] [Revised: 02/05/2021] [Accepted: 02/06/2021] [Indexed: 06/12/2023]
Abstract
Mercury (Hg2+) and benzo[a]pyrene (BaP) are ubiquitous and persistent pollutants with multiple toxicities in bivalve molluscs. Here, the toxicological responses in the gills of Manila clams, Ruditapes philippinarum, to Hg2+ (10 μg L-1), BaP (3 μg L-1), and their mixture were analysed using transcriptomics and metabolomics approaches. Comparisons of the transcriptomes and metabolomes of Hg2+-and/or BaP-treated clams with control animals revealed the involvement of the detoxification metabolism, immune defence, energy-related pathways, and osmotic regulation in the stress response of R. philippinarum. Exposure to Hg2+ alone primarily enhanced the detoxification and energy metabolic pathways by significantly increasing the expression of genes associated with heat-shock proteins and oxidative phosphorylation. However, co-exposure to Hg2+ and BaP caused greater immunotoxicity and disrupted detoxification metabolism, the TCA cycle, glycolysis, and ATP generation. The expression levels of cytochrome P450 1A1 (CYP1A1), multidrug resistance-associated protein 1 (MRP1), and myosin (MYO), and the activity of electron transport system (ETS) in gills were detected, supporting the underlying toxic mechanisms of Hg2+ and BaP. We suggest that the presence of BaP enhances the toxicity of Hg2+ by 1) hampering the detoxification of Hg2+, 2) increasing the immunotoxicity of Hg2+, and 3) constraining energy availability for clams.
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Affiliation(s)
- Weiwei Jiang
- Key Laboratory of Sustainable Development of Marine Fisheries, Ministry of Agriculture, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China
| | - Jinghui Fang
- Key Laboratory of Sustainable Development of Marine Fisheries, Ministry of Agriculture, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China
| | - Meirong Du
- Key Laboratory of Sustainable Development of Marine Fisheries, Ministry of Agriculture, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China
| | - Yaping Gao
- Key Laboratory of Sustainable Development of Marine Fisheries, Ministry of Agriculture, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China
| | - Jianguang Fang
- Key Laboratory of Sustainable Development of Marine Fisheries, Ministry of Agriculture, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China; Laboratory for Marine Fisheries Science and Food Production Processes, Qingdao Pilot National Laboratory for Marine Science and Technology, Qingdao 266200, China
| | - Zengjie Jiang
- Key Laboratory of Sustainable Development of Marine Fisheries, Ministry of Agriculture, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China; Laboratory for Marine Fisheries Science and Food Production Processes, Qingdao Pilot National Laboratory for Marine Science and Technology, Qingdao 266200, China.
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