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Peng C, Zhou S, Zhang Y, Zhang H, Zhang W, Ling S, Hu S. Dynamics and mechanisms of bioaccumulation and elimination of nonylphenol in zebrafish. Toxicology 2023; 483:153375. [PMID: 36375624 DOI: 10.1016/j.tox.2022.153375] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Revised: 11/01/2022] [Accepted: 11/09/2022] [Indexed: 11/13/2022]
Abstract
Nonylphenol (NP) has been widely concerned for its endocrine disrupting effects. In this study, we investigated the accumulation and elimination of NP for the whole body and trunk of zebrafish (Danio rerio). The results show that the LC50 values of NP in zebrafish ranged from 474 μg·L-1 (24-h exposure) to 238 μg·L-1 (96-h exposure). Meanwhile, the NP concentrations in zebrafish during the depuration stage fitted the first-order kinetic model well, and the depuration rate constant (K2) was reduced from 0.412 d-1 to 0.2827 d-1 with higher NP. The half-life (t1/2) of NP was 1.75-2.45 d in the whole fish and 0.56-0.86 d in the trunk under low to high NP, respectively. Both the accumulation and elimination of NP in trunk were faster than those in whole fish, indicating the preferential transfer from viscera to muscle and rapidly diffusion in reverse. The bioconcentration factors (BCFSS) of NP were 104-112 L·kg-1 in whole body and 76-104 L·kg-1 in trunk, respectively, suggesting that the muscle was a major position for NP storage.
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Affiliation(s)
- Cheng Peng
- State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process, School of Resource and Environmental Engineering, East China University of Science and Technology, Shanghai 200237, China; Shanghai Academy of Environmental Sciences, Shanghai 200233, China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, China
| | - Shanqi Zhou
- State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process, School of Resource and Environmental Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Yinjie Zhang
- State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process, School of Resource and Environmental Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Hongchang Zhang
- Shanghai Academy of Environmental Sciences, Shanghai 200233, China
| | - Wei Zhang
- State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process, School of Resource and Environmental Engineering, East China University of Science and Technology, Shanghai 200237, China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, China.
| | - Siyuan Ling
- Shanghai Academy of Environmental Sciences, Shanghai 200233, China
| | - Shuangqing Hu
- Shanghai Academy of Environmental Sciences, Shanghai 200233, China.
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Ardeshir RA, Rastgar S, Salati AP, Zabihi E, Movahedinia A, Feizi F. The effect of nonylphenol exposure on the stimulation of melanomacrophage centers, estrogen and testosterone level, and ERα gene expression in goldfish. Comp Biochem Physiol C Toxicol Pharmacol 2022; 254:109270. [PMID: 35026400 DOI: 10.1016/j.cbpc.2022.109270] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Revised: 12/25/2021] [Accepted: 01/05/2022] [Indexed: 11/22/2022]
Abstract
The present study tried to measure the formation of melanomacrophage centers (MMCs) in various organs of male and female goldfish exposed to nonylphenol (NP) and aimed to assess its relationship with the main sexual hormones, estrogen receptor expression, and the pigment content of the MMCs. Immature goldfish were exposed to 10-6 and 10-7 M NP for 25 days. After obtaining blood for measuring testosterone and estrogen (E2) levels, tissue samples were collected from various organs for histological studies, quantifying pigments using ImageJ software and chemical analysis, and measuring ERα gene expression. Results showed that the order of forming MMCs in various organs exposed to NP was liver > spleen > kidney, and the order of ERα gene expression was liver > testes > spleen > kidney in the male, and liver > spleen > kidney > ovaries in the female. Among the three pigments present in MMCs after exposure to the two doses of NP, melanin was more obvious (especially in the liver) and increased mostly in a dose-dependent manner in both sexes (especially in the male). Chemical analyses confirmed these results. Measurement of testosterone and E2 level in male and female goldfish showed that NP had more effect on the concentration of these hormones in male fish, indicating more endocrine-disrupting potential of NP against the male fish. Generally, the increase of melanin content of melanomacrophage centers coincided with the increase of ERα gene expression and decrease of testosterone level in goldfish after exposure to NP.
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Affiliation(s)
| | - Sara Rastgar
- Department of Marine Biology, Faculty of Marine Sciences, Khorramshahr University of Marine Science and Technology, P.O. Box 669, Khorramshahr, Iran
| | - Amir Parviz Salati
- Department of Fisheries, Faculty of Marine Natural Resources, Khoramshahr University of Marine Science and Technology, P.O. Box 669, Khorramshahr, Iran
| | - Ebrahim Zabihi
- Cellular and Molecular Biology Research Center, Health Research Institute, Babol University of Medical Sciences, Babol, Iran
| | - Abdolali Movahedinia
- Department of Marine Biology, Faculty of Marine Sciences, University of Mazandaran, Babolsar, Iran.
| | - Farideh Feizi
- Cellular and Molecular Biology Research Center, Health Research Institute, Babol University of Medical Sciences, Babol, Iran
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Segner H, Rehberger K, Bailey C, Bo J. Assessing Fish Immunotoxicity by Means of In Vitro Assays: Are We There Yet? Front Immunol 2022; 13:835767. [PMID: 35296072 PMCID: PMC8918558 DOI: 10.3389/fimmu.2022.835767] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Accepted: 02/01/2022] [Indexed: 11/28/2022] Open
Abstract
There is growing awareness that a range of environmental chemicals target the immune system of fish and may compromise the resistance towards infectious pathogens. Existing concepts to assess chemical hazards to fish, however, do not consider immunotoxicity. Over recent years, the application of in vitro assays for ecotoxicological hazard assessment has gained momentum, what leads to the question whether in vitro assays using piscine immune cells might be suitable to evaluate immunotoxic potentials of environmental chemicals to fish. In vitro systems using primary immune cells or immune cells lines have been established from a wide array of fish species and basically from all immune tissues, and in principal these assays should be able to detect chemical impacts on diverse immune functions. In fact, in vitro assays were found to be a valuable tool in investigating the mechanisms and modes of action through which environmental agents interfere with immune cell functions. However, at the current state of knowledge the usefulness of these assays for immunotoxicity screening in the context of chemical hazard assessment appears questionable. This is mainly due to a lack of assay standardization, and an insufficient knowledge of assay performance with respect to false positive or false negative signals for the different toxicant groups and different immune functions. Also the predictivity of the in vitro immunotoxicity assays for the in vivo immunotoxic response of fishes is uncertain. In conclusion, the currently available database is too limited to support the routine application of piscine in vitro assays as screening tool for assessing immunotoxic potentials of environmental chemicals to fish.
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Affiliation(s)
- Helmut Segner
- Centre for Fish and Wildlife Health, Department of Pathobiology and Infectious Diseases, Vetsuisse Faculty, University of Bern, Bern, Switzerland
- *Correspondence: Helmut Segner,
| | - Kristina Rehberger
- Centre for Fish and Wildlife Health, Department of Pathobiology and Infectious Diseases, Vetsuisse Faculty, University of Bern, Bern, Switzerland
| | | | - Jun Bo
- Laboratory of Marine Biology and Ecology, Third Institute of Oceanography, Xiamen, China
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Rehberger K, Wernicke von Siebenthal E, Bailey C, Bregy P, Fasel M, Herzog EL, Neumann S, Schmidt-Posthaus H, Segner H. Long-term exposure to low 17α-ethinylestradiol (EE2) concentrations disrupts both the reproductive and the immune system of juvenile rainbow trout, Oncorhynchus mykiss. ENVIRONMENT INTERNATIONAL 2020; 142:105836. [PMID: 32563011 DOI: 10.1016/j.envint.2020.105836] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/29/2020] [Revised: 05/08/2020] [Accepted: 05/28/2020] [Indexed: 06/11/2023]
Abstract
Estrogenic endocrine disrupting compounds (EEDCs), such as ethinylestradiol (EE2), are well studied for their impact on the reproductive system of fish. EEDCs may also impact the immune system and, as a consequence, the disease susceptibility of fish. It is currently not yet known whether the low concentrations of EEDCs that are able to disrupt the reproductive system of trout are effective in disrupting the immune system and the fish host resistance towards pathogens, too, or whether such immunodisruptive effects would occur only at higher EEDC concentrations. Therefore, in the present study we compare the effect thresholds of low 17α-ethinylestradiol concentrations (1.5 and 5.5 EE2 ng/L) on the reproductive system, the immune system, the energy expenditures and the resistance of juvenile rainbow trout (Oncorhynchus mykiss) against the parasite Tetracapsuloides bryosalmonae - the etiological agent of proliferative kidney disease (PKD) of salmonids. The parasite infection was conducted without injection and under low pathogen exposure concentrations. The disease development was followed over 130 days post infection - in the presence or absence of EE2 exposure. The results show that the long-term EE2 exposure affected, at both concentrations, reproductive parameters like the mRNA levels of hepatic vitellogenin and estrogen receptors. At the same concentrations, EE2 exposure modulated the immune parameters: mRNA levels of several immune genes were altered and the parasite intensity as well as the disease severity (histopathology) were significantly reduced in EE2-exposed fish compared to infected control fish. The combination of EE2 exposure and parasite infection was energetically costly, as indicated by the decreased values of the swim tunnel respirometry. Although further substantiation is needed, our findings suggest that EE2 exerts endocrine disruptive and immunomodulating activities at comparable effect thresholds, since reproductive and immune parameters were affected by the same, low EE2 concentrations.
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Affiliation(s)
- Kristina Rehberger
- Centre for Fish and Wildlife Health, Vetsuisse Faculty, University of Bern, Bern, Switzerland.
| | | | - Christyn Bailey
- Centre for Fish and Wildlife Health, Vetsuisse Faculty, University of Bern, Bern, Switzerland
| | - Patrick Bregy
- Centre for Fish and Wildlife Health, Vetsuisse Faculty, University of Bern, Bern, Switzerland
| | - Melanie Fasel
- Centre for Fish and Wildlife Health, Vetsuisse Faculty, University of Bern, Bern, Switzerland
| | - Elio L Herzog
- Centre for Fish and Wildlife Health, Vetsuisse Faculty, University of Bern, Bern, Switzerland
| | - Silvia Neumann
- Centre for Fish and Wildlife Health, Vetsuisse Faculty, University of Bern, Bern, Switzerland
| | - Heike Schmidt-Posthaus
- Centre for Fish and Wildlife Health, Vetsuisse Faculty, University of Bern, Bern, Switzerland
| | - Helmut Segner
- Centre for Fish and Wildlife Health, Vetsuisse Faculty, University of Bern, Bern, Switzerland
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Amenyogbe E, Chen G, Wang Z, Lu X, Lin M, Lin AY. A Review on Sex Steroid Hormone Estrogen Receptors in Mammals and Fish. Int J Endocrinol 2020; 2020:5386193. [PMID: 32089683 PMCID: PMC7029290 DOI: 10.1155/2020/5386193] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/01/2019] [Revised: 11/04/2019] [Accepted: 11/19/2019] [Indexed: 12/26/2022] Open
Abstract
Steroid hormones play essential roles in the reproductive biology of vertebrates. Estrogen exercises its effect through estrogen receptors and is not only a female reproductive hormone but acts virtually in all vertebrates, including fish, and is involved in the physiological and pathological states in all males and females. Estrogen has been implicated in mandible conservation and circulatory and central nervous systems as well as the reproductive system. This review intended to understand the structure, function, binding affinities, and activations of estrogens and estrogen receptors and to discuss the understanding of the role of sex steroid hormone estrogen receptors in mammals and fish.
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Affiliation(s)
- Eric Amenyogbe
- College of Fisheries, Guangdong Ocean University, Zhanjiang 524025, China
- Guangdong Provincial Key Laboratory of Aquaculture in the South China Sea for Aquatic Economic Animal of Guangdong Higher Education Institutes, Laboratory of Fish Aquaculture, Zhanjiang 524025, China
| | - Gang Chen
- College of Fisheries, Guangdong Ocean University, Zhanjiang 524025, China
- Guangdong Provincial Key Laboratory of Aquaculture in the South China Sea for Aquatic Economic Animal of Guangdong Higher Education Institutes, Laboratory of Fish Aquaculture, Zhanjiang 524025, China
| | - Zhongliang Wang
- College of Fisheries, Guangdong Ocean University, Zhanjiang 524025, China
- Guangdong Provincial Key Laboratory of Aquaculture in the South China Sea for Aquatic Economic Animal of Guangdong Higher Education Institutes, Laboratory of Fish Aquaculture, Zhanjiang 524025, China
| | - Xiaoying Lu
- College of Fisheries, Guangdong Ocean University, Zhanjiang 524025, China
- Guangdong Provincial Key Laboratory of Aquaculture in the South China Sea for Aquatic Economic Animal of Guangdong Higher Education Institutes, Laboratory of Fish Aquaculture, Zhanjiang 524025, China
| | - Mingde Lin
- College of Fisheries, Guangdong Ocean University, Zhanjiang 524025, China
- Guangdong Provincial Key Laboratory of Aquaculture in the South China Sea for Aquatic Economic Animal of Guangdong Higher Education Institutes, Laboratory of Fish Aquaculture, Zhanjiang 524025, China
| | - Ai Ying Lin
- College of Fisheries, Guangdong Ocean University, Zhanjiang 524025, China
- Guangdong Provincial Key Laboratory of Aquaculture in the South China Sea for Aquatic Economic Animal of Guangdong Higher Education Institutes, Laboratory of Fish Aquaculture, Zhanjiang 524025, China
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Jayaprada T, Hu J, Zhang Y, Feng H, Shen D, Geekiyanage S, Yao Y, Wang M. The interference of nonylphenol with bacterial cell-to-cell communication. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2020; 257:113352. [PMID: 31672371 DOI: 10.1016/j.envpol.2019.113352] [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: 06/19/2019] [Revised: 10/04/2019] [Accepted: 10/04/2019] [Indexed: 06/10/2023]
Abstract
The interference of nonylphenol (NP) with humans and animals, especially in hormone systems, has been well-studied. There is rarely any record of its effect on bacteria, which dominate in various environments. In our study, we employed Pseudomonas aeruginosa PAO1 as a model microorganism and took its common lifestyle biofilm, mainly regulated by quorum sensing (QS), as a cut-in point to investigate the effect of NP (1, 5, 10 mg L-1) on bacteria. The results showed that more than 5 mg L-1 of NP did interfere with biofilm formation and affected bacterial QS. In detail, the LasI/R circuit, but not the RhlI/R circuit, was considerably obstructed. The decrease in lasI and lasR expression resulted in a significant reduction in N-3-oxo-dodecanoyl homoserine lactone (3OC12-HSL) signals and the downstream production of elastases. Docking results indicated the binding of NP with LasR protein, simulating the binding of 3OC12-HSL with LasR protein, which explained the obstruction of the LasIR circuit. We concluded that NP competed with 3OC12-HSL and blocked 3OC12-HSL binding with the LasR protein, resulting in a direct interference in bacterial biofilm formation. This is the first report of NP interference with bacterial signaling, which is not only helpful to understand the effect of NP on various ecosystems, but is also beneficial to enrich our knowledge of inter-kingdom communication.
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Affiliation(s)
- Thilini Jayaprada
- School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310012, China
| | - Jingming Hu
- School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310012, China
| | - Yunyun Zhang
- School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310012, China
| | - Huajun Feng
- School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310012, China; Zhejiang Provincial Key Laboratory of Solid Waste Treatment and Recycling, Hangzhou 310012, China
| | - Dongsheng Shen
- School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310012, China; Zhejiang Provincial Key Laboratory of Solid Waste Treatment and Recycling, Hangzhou 310012, China
| | - Sudarshanee Geekiyanage
- Department of Agricultural Biology, University of Ruhuna, Mapalana, Kamburupitiya, 81100, Sri Lanka
| | - Yanlai Yao
- Institute of Environment Resource, Soil and Fertilizer, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
| | - Meizhen Wang
- School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310012, China; Zhejiang Provincial Key Laboratory of Solid Waste Treatment and Recycling, Hangzhou 310012, China.
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