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Kweon J, Lee H, Park J, Hong T, An G, Song G, Lim W, Jeong W. Developmental and organ toxicity of fenpropimorph in zebrafish: Involvement of apoptosis and inflammation. Chem Biol Interact 2025; 415:111512. [PMID: 40239885 DOI: 10.1016/j.cbi.2025.111512] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2024] [Revised: 04/07/2025] [Accepted: 04/14/2025] [Indexed: 04/18/2025]
Abstract
Pesticides are increasingly the focus as a prominent factor in environmental pollution. Fenpropimorph, a widely utilized morpholine fungicide, is a significant water pollutant. Because of its extensive usage, fenpropimorph is readily detected in diverse aquatic ecosystems. Despite its well-known toxicity to aquatic organisms, its toxicity to zebrafish development and accompanying mechanics remain unexplored. To assess fenpropimorph's toxicity and potential mechanism, we employed the zebrafish model, a representative tool in toxicological studies. Our results showed that exposure to fenpropimorph reduced embryonic viability during the early stages of development and reduced head and body size. Moreover, fenpropimorph triggered apoptosis, DNA fragmentation, and inflammation. Aberrations in the vascular network were observed in the fli1:eGFP transgenic zebrafish model. Additionally, neurotoxic impacts were further assessed using transgenic olig2:dsRed zebrafish, accompanied by a reduction of liver size and fluorescence intensity of fabp10a:dsRed zebrafish. mRNA expression analysis related to corresponding organ development further supported our data. Overall, our research suggests that fenpropimorph may cause aberrations in aquatic organisms.
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Affiliation(s)
- Junhun Kweon
- Department of Biotechnology, Korea University, Seoul, 02841, Republic of Korea
| | - Hojun Lee
- Department of Biotechnology, Korea University, Seoul, 02841, Republic of Korea
| | - Junho Park
- Department of Biological Sciences, Sungkyunkwan University, Suwon, 16419, Republic of Korea
| | - Taeyeon Hong
- Department of Biological Sciences, Sungkyunkwan University, Suwon, 16419, Republic of Korea
| | - Garam An
- Department of Biological Sciences, Sungkyunkwan University, Suwon, 16419, Republic of Korea
| | - Gwonhwa Song
- Department of Biotechnology, Korea University, Seoul, 02841, Republic of Korea.
| | - Whasun Lim
- Department of Biological Sciences, Sungkyunkwan University, Suwon, 16419, Republic of Korea.
| | - Wooyoung Jeong
- Department of Biomedical Sciences, Catholic Kwandong University, Gangneung, 25601, Republic of Korea.
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Xue M, Jia M, Qin Y, Francis F, Gu X. Toxicity of parental co-exposure of microplastic and bisphenol compounds on adult zebrafish: Multi-omics investigations on offspring. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 955:176897. [PMID: 39401590 DOI: 10.1016/j.scitotenv.2024.176897] [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: 06/07/2024] [Revised: 09/20/2024] [Accepted: 10/10/2024] [Indexed: 10/20/2024]
Abstract
In recent years, the widespread use of bisphenol compounds and microplastics (MP) have attracted attention due to their harmful effects. Here, individual and combined effects of MP and bisphenol compounds, were assessed on adult zebrafish after co-exposure of bisphenol A (BPA) or bisphenol S (BPS) and 25 μm polyethylene MP. Impacts on their offspring (the F1 generation) were also investigated. The reproductive toxicity in adult zebrafish impacted exerted by bisphenol compounds were aggravated by the co-presence of MP. Transcriptomics and metabolomics further showed single or co-exposure of bisphenol compounds and MP could together regulate apoptosis, calcium signaling pathway and glycerophospholipid signaling pathways. Our results also showed the different toxicity mechanisms on transcriptional and metabolic profiles in the combination effects of bisphenol compounds and MP. The co-exposure of BPA and MP predominantly influenced neurotoxicity via the MAPK signaling pathway and voltage-dependent calcium channels, whereas the co-exposure of BPS and MP principally affected visual development through phototransduction and retinol metabolism. The co-exposure of BPA and MP, as well as BPS and MP, specifically regulate lipid metabolism and carbohydrate metabolism in zebrafish offspring, respectively. Overall, this study provided a deep understanding of the toxicity differences between co-exposure and single exposure of bisphenol compound and MP in zebrafish, as well as the transgenerational effects and potential molecular mechanisms of bisphenol compounds and MP in zebrafish offspring.
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Affiliation(s)
- Moyong Xue
- Functional and Evolutionary Entomology, Gembloux Agro-Bio Tech, University of Liege, Gembloux, Belgium; Institute of Animal Science, Chinese Academy of Agriculture Sciences, Beijing, China
| | - Ming Jia
- Feed Research Institute, Chinese Academy of Agricultural Science, Beijing, China
| | - Yuchang Qin
- Institute of Animal Science, Chinese Academy of Agriculture Sciences, Beijing, China
| | - Frédéric Francis
- Functional and Evolutionary Entomology, Gembloux Agro-Bio Tech, University of Liege, Gembloux, Belgium
| | - Xu Gu
- Feed Research Institute, Chinese Academy of Agricultural Science, Beijing, China.
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Chan CK, Lim KS, Low SK, Tan CT, Ng CC. Genetic interaction between GABRA1 and ERBB4 variants in the pathogenesis of genetic generalized epilepsy. Epilepsy Res 2023; 189:107070. [PMID: 36584483 DOI: 10.1016/j.eplepsyres.2022.107070] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Revised: 12/06/2022] [Accepted: 12/17/2022] [Indexed: 12/24/2022]
Abstract
Epilepsy is a complex neurological disease that can be caused by both genetic and environmental factors. Many studies have been conducted to investigate the genetic risk variants and molecular mechanisms of epilepsy. Disruption of excitation-inhibition balance (E/I balance) is one of the widely accepted disease mechanisms of epilepsy. The maintenance of E/I balance is an intricate process that is governed by multiple proteins. Using whole exome sequencing (WES), we identified a novel GABRA1 c.448G>A (p.E150K) variant and ERBB4 c.1972A>T (p.I658F, rs190654033) variant in a Malaysian Chinese family with genetic generalized epilepsy (GGE). The GGE may be triggered by dysregulation of E/I balance mechanism. Segregation of the variants in the family was verified by Sanger sequencing. All family members with GGE inherited both variants. However, family members who carried only one of the variants did not show any symptoms of GGE. Both the GABRA1 and ERBB4 variants were predicted damaging by MutationTaster and CADD, and protein structure analysis showed that the variants had resulted in the formation of additional hydrogen bonds in the mutant proteins. GABRA1 variant could reduce the efficiency of GABAA receptors, and constitutively active ERBB4 receptors caused by the ERBB4 variant promote internalization of GABAA receptors. The interaction between the two variants may cause a greater disruption in E/I balance, which is more likely to induce a seizure. Nevertheless, this disease model was derived from a single small family, further studies are still needed to confirm the verifiability of the purported disease model.
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Affiliation(s)
- Chung-Kin Chan
- Genetics and Molecular Biology, Institute of Biological Sciences, Faculty of Science, Universiti Malaya, Kuala Lumpur, Malaysia; Division of Neurology, Department of Medicine, Faculty of Medicine, Universiti Malaya, Kuala Lumpur, Malaysia
| | - Kheng-Seang Lim
- Division of Neurology, Department of Medicine, Faculty of Medicine, Universiti Malaya, Kuala Lumpur, Malaysia.
| | - Siew-Kee Low
- Cancer Precision Medicine Center, Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Chong-Tin Tan
- Division of Neurology, Department of Medicine, Faculty of Medicine, Universiti Malaya, Kuala Lumpur, Malaysia
| | - Ching-Ching Ng
- Genetics and Molecular Biology, Institute of Biological Sciences, Faculty of Science, Universiti Malaya, Kuala Lumpur, Malaysia.
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Wu P, He M, Zhang X, Zhou K, Zhang T, Xie K, Dai G, Wang J, Wang X, Zhang G. miRNA-seq analysis in skeletal muscle of chicken and function exploration of miR-24-3p. Poult Sci 2022; 101:102120. [PMID: 36113166 PMCID: PMC9483787 DOI: 10.1016/j.psj.2022.102120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Revised: 06/16/2022] [Accepted: 08/03/2022] [Indexed: 10/31/2022] Open
Abstract
The regulation of skeletal muscle growth and development in chicken is complex. MicroRNAs (miRNAs) have been found to play an important role in the process, and more research is needed to further understand the regulatory mechanism of miRNAs. In this study, leg muscles of Jinghai yellow chickens at 300 d with low body weight (slow-growing group) and high body weight (fast-growing group) were collected for miRNA sequencing (miRNA-seq) and Bioinformatics analysis revealed 12 differentially expressed miRNAs (DEMs) between the two groups. We predicted 150 target genes for the DEMs, and GO and KEGG pathway analysis showed the target genes of miR-24-3p and novel_miR_133 were most enriched in the terms related to growth and development. Moreover, networks of DEMs and target genes showed that miR-24-3p and novel_miR_133 were the 2 core miRNAs. Hence, miR-24-3p was selected for further functional exploration in chicken primary myoblasts (CPMs) with molecular biology technologies including qPCR, cell counting kit-8 (CCK-8), 5-ethynyl-2'-deoxyuridine (EdU) and immunofluorescence. When proliferating CPMs were transfected with miR-24-3p mimic, the expression of cyclin dependent kinase inhibitor 1A (P21) was up-regulated and both CCK-8 and EdU assays showed that the proliferation of CPMs was inhibited. However, when the inhibitor was transfected into the proliferating CPMs, the opposite results were found. In differentiated CPMs, transfection with miR-24-3p mimic resulted in up regulation of MYOD, MYOG and MYHC after 48 h. Myotube areas also increased significantly compared to the mimic negative control (NC) group. When treated with inhibitor, differentiation CPMs produced the opposite effects. Overall, we revealed 2 miRNAs (novel_miR_133 and miR-24-3p) significantly related with growth and development and further proved that miR-24-3p could suppress the proliferation and promote differentiation of CPMs. The results would facilitate understanding the effects of miRNAs on the growth and development of chickens at the post-transcriptional level and could also have an important guiding role in yellow-feathered chicken breeding.
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Affiliation(s)
- Pengfei Wu
- College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, China; Joint International Research Laboratory of Agriculture & Agri-Product Safety, Yangzhou University, Yangzhou 225009, China
| | - Mingliang He
- College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, China; Joint International Research Laboratory of Agriculture & Agri-Product Safety, Yangzhou University, Yangzhou 225009, China
| | - Xinchao Zhang
- College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, China; Joint International Research Laboratory of Agriculture & Agri-Product Safety, Yangzhou University, Yangzhou 225009, China
| | - Kaizhi Zhou
- College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, China; Joint International Research Laboratory of Agriculture & Agri-Product Safety, Yangzhou University, Yangzhou 225009, China
| | - Tao Zhang
- College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, China; Joint International Research Laboratory of Agriculture & Agri-Product Safety, Yangzhou University, Yangzhou 225009, China
| | - Kaizhou Xie
- College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, China; Joint International Research Laboratory of Agriculture & Agri-Product Safety, Yangzhou University, Yangzhou 225009, China
| | - Guojun Dai
- College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, China; Joint International Research Laboratory of Agriculture & Agri-Product Safety, Yangzhou University, Yangzhou 225009, China
| | - Jinyu Wang
- College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, China; Joint International Research Laboratory of Agriculture & Agri-Product Safety, Yangzhou University, Yangzhou 225009, China
| | - Xinglong Wang
- College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, China; Joint International Research Laboratory of Agriculture & Agri-Product Safety, Yangzhou University, Yangzhou 225009, China
| | - Genxi Zhang
- College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, China; Joint International Research Laboratory of Agriculture & Agri-Product Safety, Yangzhou University, Yangzhou 225009, China.
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Shi J, Li W, Liu A, Ren L, Zhang P, Jiang T, Han Y, Liu L. MiRNA sequencing of Embryonic Myogenesis in Chengkou Mountain Chicken. BMC Genomics 2022; 23:571. [PMID: 35948880 PMCID: PMC9364561 DOI: 10.1186/s12864-022-08795-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2022] [Accepted: 07/27/2022] [Indexed: 12/30/2022] Open
Abstract
BACKGROUND Skeletal muscle tissue is among the largest organ systems in mammals, essential for survival and movement. Embryonic muscle development determines the quantity and quality of muscles after the birth of an individual. MicroRNAs (miRNAs) are a significant class of non-coding RNAs that bind to the 3'UTR region of mRNA to regulate gene function. Total RNA was extracted from the leg muscles of chicken embryos in different developmental stages of Chengkou Mountain Chicken and used to generate 171,407,341 clean small RNA reads. Target prediction, GO, and KEGG enrichment analyses determined the significantly enriched genes and pathways. Differential analysis determined the significantly different miRNAs between chicken embryo leg muscles at different developmental stages. Meanwhile, the weighted correlation network analysis (WGCNA) identified key modules in different developmental stages, and the hub miRNAs were screened following the KME value. RESULTS The clean reads contained 2047 miRNAs, including 721 existing miRNAs, 1059 known miRNAs, and 267 novel miRNAs. Many genes and pathways related to muscle development were identified, including ERBB4, MEF2C, FZD4, the Wnt, Notch, and MAPK signaling pathways. The WGCNA established the greenyellow module and gga-miR-130b-5p for E12, magenta module and gga-miR-1643-5p for E16, purple module and gga-miR-12218-5p for E19, cyan module and gga-miR-132b-5p for E21. CONCLUSION These results lay a foundation for further research on the molecular regulatory mechanism of embryonic muscle development in Chengkou mountain chicken and provide a reference for other poultry and livestock muscle development studies.
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Affiliation(s)
- Jun'an Shi
- College of Animal Science and Technology, Chongqing Key Laboratory of Herbivore Science, Southwest University, Beibei, Chongqing, 400700, China
| | - Wendong Li
- College of Animal Science and Technology, Chongqing Key Laboratory of Herbivore Science, Southwest University, Beibei, Chongqing, 400700, China
| | - Anfang Liu
- College of Animal Science and Technology, Chongqing Key Laboratory of Herbivore Science, Southwest University, Beibei, Chongqing, 400700, China
| | - Lingtong Ren
- College of Animal Science and Technology, Chongqing Key Laboratory of Herbivore Science, Southwest University, Beibei, Chongqing, 400700, China
| | - Pusen Zhang
- College of Animal Science and Technology, Chongqing Key Laboratory of Herbivore Science, Southwest University, Beibei, Chongqing, 400700, China
| | - Ting Jiang
- College of Animal Science and Technology, Chongqing Key Laboratory of Herbivore Science, Southwest University, Beibei, Chongqing, 400700, China
| | - Yuqing Han
- College of Animal Science and Technology, Chongqing Key Laboratory of Herbivore Science, Southwest University, Beibei, Chongqing, 400700, China
| | - Lingbin Liu
- College of Animal Science and Technology, Chongqing Key Laboratory of Herbivore Science, Southwest University, Beibei, Chongqing, 400700, China.
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Guo W, Vandoorne T, Steyaert J, Staats KA, Van Den Bosch L. The multifaceted role of kinases in amyotrophic lateral sclerosis: genetic, pathological and therapeutic implications. Brain 2021; 143:1651-1673. [PMID: 32206784 PMCID: PMC7296858 DOI: 10.1093/brain/awaa022] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2019] [Revised: 11/23/2019] [Accepted: 12/11/2019] [Indexed: 02/07/2023] Open
Abstract
Amyotrophic lateral sclerosis is the most common degenerative disorder of motor neurons in adults. As there is no cure, thousands of individuals who are alive at present will succumb to the disease. In recent years, numerous causative genes and risk factors for amyotrophic lateral sclerosis have been identified. Several of the recently identified genes encode kinases. In addition, the hypothesis that (de)phosphorylation processes drive the disease process resulting in selective motor neuron degeneration in different disease variants has been postulated. We re-evaluate the evidence for this hypothesis based on recent findings and discuss the multiple roles of kinases in amyotrophic lateral sclerosis pathogenesis. We propose that kinases could represent promising therapeutic targets. Mainly due to the comprehensive regulation of kinases, however, a better understanding of the disturbances in the kinome network in amyotrophic lateral sclerosis is needed to properly target specific kinases in the clinic.
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Affiliation(s)
- Wenting Guo
- KU Leuven-University of Leuven, Department of Neurosciences, Experimental Neurology, and Leuven Brain Institute (LBI), Leuven, Belgium.,VIB, Center for Brain & Disease Research, Laboratory of Neurobiology, Leuven, Belgium.,KU Leuven-Stem Cell Institute (SCIL), Leuven, Belgium
| | - Tijs Vandoorne
- KU Leuven-University of Leuven, Department of Neurosciences, Experimental Neurology, and Leuven Brain Institute (LBI), Leuven, Belgium.,VIB, Center for Brain & Disease Research, Laboratory of Neurobiology, Leuven, Belgium
| | - Jolien Steyaert
- KU Leuven-University of Leuven, Department of Neurosciences, Experimental Neurology, and Leuven Brain Institute (LBI), Leuven, Belgium.,VIB, Center for Brain & Disease Research, Laboratory of Neurobiology, Leuven, Belgium
| | - Kim A Staats
- Department of Stem Cell Biology and Regenerative Medicine, University of Southern California, Los Angeles, California, USA
| | - Ludo Van Den Bosch
- KU Leuven-University of Leuven, Department of Neurosciences, Experimental Neurology, and Leuven Brain Institute (LBI), Leuven, Belgium.,VIB, Center for Brain & Disease Research, Laboratory of Neurobiology, Leuven, Belgium
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Kanerva M, Tue NM, Kunisue T, Vuori K, Iwata H. Effects on the Liver Transcriptome in Baltic Salmon: Contributions of Contamination with Organohalogen Compounds and Origin of Salmon. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2020; 54:15246-15256. [PMID: 33166131 DOI: 10.1021/acs.est.0c04763] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Hatchery-reared Atlantic salmon (Salmo salar) has been released to support the wild salmon stocks in the Baltic Sea for decades. During their feeding migration, salmon are exposed to organohalogen compounds (OHCs). Here, we investigated the OHC levels and transcriptome profiles in the liver of wild and hatchery-reared salmon collected from the Baltic main basin (BMB), the Bothnian Sea (BS), and the Gulf of Finland (GoF) and examined whether salmon origin and OHC levels contributed to the hepatic transcriptome profiles. There were no differences in the OHC concentrations between wild and reared fish but larger differences between areas. Several transcript levels were associated with non-dioxin-like polychlorinated biphenyls, polybrominated diphenylethers, chlordanes, and dichlorodiphenyltrichloroethane in a concentration-dependent manner. Between wild and reared salmon, lipid metabolism and related signaling pathways were enriched within the BMB and BS, while amino acid metabolism was altered within the GoF. When comparing the different areas, lipid metabolism, environmental stress and cell growth, and death-related pathways were enriched. Class coinertia analysis showed that the covariation in the OHC levels and the transcriptome were significantly similar. These results suggest that the hepatic transcriptomes in wild and hatchery-reared salmon are more affected by the OHC levels rather than the origin of salmon.
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Affiliation(s)
- Mirella Kanerva
- CMES, Lab. of Environmental Toxicology, Ehime University, Bunkyo-cho 2-5, Matsuyama 790-8577, Japan
| | - Nguyen Minh Tue
- CMES, Lab. of Environmental Chemistry, Ehime University, Bunkyo-cho 2-5, Matsuyama 790-8577, Japan
| | - Tatsuya Kunisue
- CMES, Lab. of Environmental Chemistry, Ehime University, Bunkyo-cho 2-5, Matsuyama 790-8577, Japan
| | - Kristiina Vuori
- Department of Equine and Small Animal Medicine, University of Helsinki, P.O. Box 57, Koetilantie 2, Helsinki FI-00014, Finland
| | - Hisato Iwata
- CMES, Lab. of Environmental Toxicology, Ehime University, Bunkyo-cho 2-5, Matsuyama 790-8577, Japan
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Cassar S, Adatto I, Freeman JL, Gamse JT, Iturria I, Lawrence C, Muriana A, Peterson RT, Van Cruchten S, Zon LI. Use of Zebrafish in Drug Discovery Toxicology. Chem Res Toxicol 2019; 33:95-118. [PMID: 31625720 DOI: 10.1021/acs.chemrestox.9b00335] [Citation(s) in RCA: 338] [Impact Index Per Article: 56.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Unpredicted human safety events in clinical trials for new drugs are costly in terms of human health and money. The drug discovery industry attempts to minimize those events with diligent preclinical safety testing. Current standard practices are good at preventing toxic compounds from being tested in the clinic; however, false negative preclinical toxicity results are still a reality. Continual improvement must be pursued in the preclinical realm. Higher-quality therapies can be brought forward with more information about potential toxicities and associated mechanisms. The zebrafish model is a bridge between in vitro assays and mammalian in vivo studies. This model is powerful in its breadth of application and tractability for research. In the past two decades, our understanding of disease biology and drug toxicity has grown significantly owing to thousands of studies on this tiny vertebrate. This Review summarizes challenges and strengths of the model, discusses the 3Rs value that it can deliver, highlights translatable and untranslatable biology, and brings together reports from recent studies with zebrafish focusing on new drug discovery toxicology.
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Affiliation(s)
- Steven Cassar
- Preclinical Safety , AbbVie , North Chicago , Illinois 60064 , United States
| | - Isaac Adatto
- Stem Cell and Regenerative Biology , Harvard University , Cambridge , Massachusetts 02138 , United States
| | - Jennifer L Freeman
- School of Health Sciences , Purdue University , West Lafayette , Indiana 47907 , United States
| | - Joshua T Gamse
- Drug Safety Evaluation , Bristol-Myers Squibb , New Brunswick , New Jersey 08901 , United States
| | | | - Christian Lawrence
- Aquatic Resources Program , Boston Children's Hospital , Boston , Massachusetts 02115 , United States
| | | | - Randall T Peterson
- Pharmacology and Toxicology, College of Pharmacy , University of Utah , Salt Lake City , Utah 84112 , United States
| | | | - Leonard I Zon
- Stem Cell Program and Division of Hematology/Oncology, Children's Hospital and Dana Farber Cancer Institute, Howard Hughes Medical Institute, Harvard Medical School, Harvard Stem Cell Institute, Stem Cell and Regenerative Biology Department , Harvard University , Boston , Massachusetts 02138 , United States
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