1
|
Chang J, Huang R, Zhang Z, Pan Y, Ma Z, Wan B, Wang H. A ubiquitous tire rubber additive induced serious eye injury in zebrafish (Danio rerio). JOURNAL OF HAZARDOUS MATERIALS 2024; 472:134461. [PMID: 38696959 DOI: 10.1016/j.jhazmat.2024.134461] [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: 02/23/2024] [Revised: 04/12/2024] [Accepted: 04/26/2024] [Indexed: 05/04/2024]
Abstract
Previous studies have indicated that tire wear particles (TWPs) leachate exposure induced serious eye injury in fish through inhibiting the thyroid peroxidase (TPO) enzyme activity. However, the main TPO inhibitors in the leachate were still unknown. In this study, we identified 2-Mercaptobenzothiazole (MBT) as the potential TPO inhibitor in the TWPs leachate through references search, model prediction based on Danish QSAR and ToxCast database, molecular docking, and in vivo assay. We further explored the toxic mechanism of MBT under environmentally relevant concentrations. The decreased eye size of zebrafish larvae was mainly caused by the decreased lens diameter and cell density in the inner nuclear layer (INL) and outer nuclear layer (ONL) of the retina. Transcriptomics analysis demonstrated that the eye phototransduction function was significantly suppressed by inhibiting the photoreceptor cell proliferation process after MBT exposure. The altered opsin gene expression and decreased opsin protein levels were induced by weakening thyroid hormone signaling after MBT treatment. These results were comparable to those obtained from a known TPO inhibitor, methimazole. This study has identified MBT as the primary TPO inhibitor responsible for inducing eye impairment in zebrafish larvae exposed to TWPs leachate. It is crucial for reducing the toxicity of TWPs leachate in fish.
Collapse
Affiliation(s)
- Jing Chang
- Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Shuangqing RD 18, Beijing 100085, China
| | - Rui Huang
- Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Shuangqing RD 18, Beijing 100085, China; University of Chinese Academy of Sciences, Yuquan RD 19 a, Beijing 100049, China
| | - Zhaoguang Zhang
- North China Electric Power University, Beinong RD 2, Beijing 102206, China
| | - Yunrui Pan
- Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Shuangqing RD 18, Beijing 100085, China; University of Chinese Academy of Sciences, Yuquan RD 19 a, Beijing 100049, China
| | - Zheng Ma
- Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Shuangqing RD 18, Beijing 100085, China; University of Chinese Academy of Sciences, Yuquan RD 19 a, Beijing 100049, China
| | - Bin Wan
- Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Shuangqing RD 18, Beijing 100085, China
| | - Huili Wang
- Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Shuangqing RD 18, Beijing 100085, China.
| |
Collapse
|
2
|
Raine JC, Su S, Lin E, Yang ZL, Giesy JP, Jones PD. Prefertilization Exposure of Rainbow Trout Eggs to Per- and Polyfluoroalkyl Substances to Simulate Accumulation During Oogenesis. ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY 2021; 40:3159-3165. [PMID: 34449918 DOI: 10.1002/etc.5200] [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: 09/21/2020] [Revised: 12/01/2020] [Accepted: 08/24/2021] [Indexed: 06/13/2023]
Abstract
Aqueous film-forming foams (AFFFs) are used in firefighting and are sources of per- and polyfluoroalkyl substances (PFAS) to the environment through surface runoff and groundwater contamination at defense and transportation sites. Little is known regarding the toxicity and bioaccumulation of newer AFFF formulations containing novel PFAS. To mimic maternal transfer of PFAS, prefertilization rainbow trout eggs were exposed to three PFAS using novel methodologies. Batches of unfertilized oocytes were exposed for 3 h to 0, 0.01, 0.1, 1, or 10 µg/ml separately to perfluorooctanoic acid, perfluorohexanoic acid, or perfluorooctanesulfonic acid in either coelomic fluid or Cortland's solution. After exposure, the gametes were fertilized and rinsed with dechlorinated water. Egg yolk was aspirated from a subset of fertilized eggs for PFAS quantification. Each PFAS was detected in yolks of eggs exposed to the respective PFAS, and yolk concentrations were directly proportional to concentrations in aqueous media to which they were exposed. Exposure in coelomic fluid or Cortland's solution resulted in similar concentrations of PFAS in egg yolks. Ratios of PFAS concentrations in oocytes to concentrations in exposure media (oocyte fluid ratios) were <0.99 when exposed from 0.01 to 10 µg/ml and <0.45 when exposed from 0.1 to 10 µg/ml for both media and all three PFAS, demonstrating that the water solubility of the chemicals was relatively great. Prefertilization exposure of eggs effectively introduced PFAS into unfertilized egg yolk. This method provided a means of mimicking maternal transfer to evaluate toxicity to developing embryos from an early stage. This method is more rapid and efficient than injection of individual fertilized eggs and avoids trauma from inserting needles into eggs. Environ Toxicol Chem 2021;40:3159-3165. © 2021 SETAC.
Collapse
Affiliation(s)
- J C Raine
- Toxicology Centre, University of Saskatchewan, Saskatoon, Saskatchewan, Canada
| | - S Su
- Toxicology Centre, University of Saskatchewan, Saskatoon, Saskatchewan, Canada
| | - E Lin
- Toxicology Centre, University of Saskatchewan, Saskatoon, Saskatchewan, Canada
| | - Z L Yang
- Toxicology Centre, University of Saskatchewan, Saskatoon, Saskatchewan, Canada
| | - J P Giesy
- Toxicology Centre, University of Saskatchewan, Saskatoon, Saskatchewan, Canada
- Department of Veterinary Biomedical Sciences, University of Saskatchewan, Saskatoon, Saskatchewan, Canada
- Department of Environmental Sciences, Baylor University, Waco, Texas, USA
| | - P D Jones
- Toxicology Centre, University of Saskatchewan, Saskatoon, Saskatchewan, Canada
- School of Environment and Sustainability, University of Saskatchewan, Saskatoon, Saskatchewan, Canada
| |
Collapse
|
3
|
Kudo H, Eto A, Abe T, Mochida K. Detection and localization of the thyroid hormone receptor beta mRNA in the immature olfactory receptor neurons of chum salmon. Heliyon 2018; 4:e00744. [PMID: 30148220 PMCID: PMC6106697 DOI: 10.1016/j.heliyon.2018.e00744] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2018] [Revised: 07/04/2018] [Accepted: 08/15/2018] [Indexed: 01/01/2023] Open
Abstract
Thyroid hormone (TH) plays an important role in regulating multiple cellular and metabolic processes, including cell proliferation, cell death, and energy metabolism, in various organs and tissues of vertebrates. It is generally accepted that anadromous Pacific salmon (Oncorhynchus spp.) imprint odorants from their natal stream during their seaward migration, and they then use olfaction to discriminate their natal stream during the spawning migration. Both serum TH levels and the specific binding values of TH in the salmon olfactory epithelium were markedly increased during the seaward migration. However, thyroid hormone receptor (TR) expression in the olfactory epithelium has not been confirmed in vertebrates. We investigated gene expression of TR isoforms in chum salmon (O. keta) by both molecular biological and histochemical techniques. Expression of TRβ mRNA was detected in the olfactory epithelium by reverse transcriptase polymerase chain reaction (RT-PCR). Nucleotide sequencing demonstrated the existence of a remarkable homology between the RT-PCR product and part of the ligand-binding domain of other teleost TRβ isoforms. By in situ hybridization using a digoxygenin-labeled salmon olfactory TRβ cRNA probe, signals for salmon olfactory TRβ mRNA were observed preferentially in the perinuclear regions of immature olfactory receptor neurons (ORNs), as protein gene product 9.5 (PGP9.5)-immunopositive ORNs. Our results provide the first detection of TRβ gene expression in the olfactory epithelium, and suggested the possibility that TRβ may be involved in cell maturation and/or cell differentiation of the ORNs in Pacific salmon.
Collapse
Affiliation(s)
- Hideaki Kudo
- Laboratory of Humans and the Ocean, Faculty of Fisheries Sciences, Hokkaido University, Hakodate 041-8611, Hokkaido, Japan
| | - Akihiro Eto
- Laboratory of Humans and the Ocean, Faculty of Fisheries Sciences, Hokkaido University, Hakodate 041-8611, Hokkaido, Japan
| | - Takashi Abe
- Laboratory of Humans and the Ocean, Faculty of Fisheries Sciences, Hokkaido University, Hakodate 041-8611, Hokkaido, Japan
| | - Kazuhiko Mochida
- National Research Institute of Fisheries and Environment of Inland Sea, Japan Fisheries Research and Education Agency, Hatsukaichi 739-0452, Hiroshima, Japan
| |
Collapse
|
4
|
Ruuskanen S, Hsu BY. Maternal Thyroid Hormones: An Unexplored Mechanism Underlying Maternal Effects in an Ecological Framework. Physiol Biochem Zool 2018; 91:904-916. [DOI: 10.1086/697380] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
|
5
|
Reider M, Connaughton VP. Effects of low-dose embryonic thyroid disruption and rearing temperature on the development of the eye and retina in zebrafish. ACTA ACUST UNITED AC 2014; 101:347-54. [PMID: 25250784 DOI: 10.1002/bdrb.21118] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2014] [Accepted: 07/23/2014] [Indexed: 11/09/2022]
Abstract
Thyroid hormones are required for vertebrate development, and disruption of the thyroid system in developing embryos can result in a large range of morphologic and physiologic changes, including in the eye and retina. In this study, our anatomic analyses following low-dose, chronic thyroid inhibition reveal that both methimazole (MMI) exposure and rearing temperature affect eye development in a time- and temperature-dependent fashion. Maximal sensitivity to MMI for external eye development occurred at 65 hr postfertilization (hpf) for zebrafish reared at 28°C, and at 69 hpf for those reared at 31°C. Changes in eye diameter corresponded to changes in thickness of two inner retinal layers: the ganglion cell layer and the inner plexiform layer, with irreversible MMI-induced decreases in layer thickness observed in larvae treated with MMI until 66 hpf at 28°C. We infer that maximal sensitivity to MMI between 65 and 66 hpf at 28°C indicates a critical period of thyroid-dependent eye and retinal development. Furthermore, our results support previous work that shows spontaneous escape from MMI-induced effects potentially due to embryonic compensatory actions, as our data show that embryos treated beyond the critical period generally resemble controls.
Collapse
Affiliation(s)
- Masha Reider
- Department of Biology, American University, Washington, District of Columbia
| | | |
Collapse
|