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Zhao T, Tan XY, Pantopoulos K, Xu JJ, Zheng H, Xu YC, Song YF, Luo Z. miR-20a-5p targeting mfn2-mediated mitochondria-lipid droplet contacts regulated differential changes in hepatic lipid metabolism induced by two Mn sources in yellow catfish. JOURNAL OF HAZARDOUS MATERIALS 2024; 462:132749. [PMID: 37871441 DOI: 10.1016/j.jhazmat.2023.132749] [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: 06/12/2023] [Revised: 10/05/2023] [Accepted: 10/07/2023] [Indexed: 10/25/2023]
Abstract
Understanding the hazards of different forms of metal elements provided innovative insights into their toxicity and environmental risk assessment. To date, few studies had been conducted to investigate the differential effects and mechanisms of MnO2 NPs and MnSO4, two widely distributed environmental pollutants, on hepatic toxicity and lipid metabolism since lipid metabolism-relevant parameters were broadly used as biomarkers for risk assessment of hazardous contaminants. Thus, using yellow catfish Pelteobagrus fulvidraco, an ecologically and economically important freshwater fish as the model, the present study investigated the differential effects and mechanisms of MnO2 NPs and MnSO4 influencing hepatic lipid metabolism. Compared to MnSO4, MnO2 NPs increased hepatic Mn content, induced lipotoxicity, up-regulated the mRNA expression of lipogenic genes, increased peridroplet mitochondrial (PDM) contents, intensified the contact between mitochondria and lipid droplets (LDs), and downregulated miR-20a-5p abundance. Importantly, miR-20a-5p targeted mfn2, which mediated the contact between mitochondria and LDs and influenced changes in lipid metabolism induced by MnO2 NPs. Mechanistically, the direct Mfn2-Plin2 binding and Mfn2 GTPase activity promoted the MnO2 NPs-induced interactions between mitochondria and LDs, which in turn influenced MnO2 NPs-induced changes in hepatic lipid metabolism. For the first time, our findings indicated the significant differences between the changes in body metabolism induced by nanoparticles and inorganic elements, which helped to illuminate different mechanisms governing the responses of aquatic vertebrates to hazardous metal pollutants (MnO2 NPs and MnSO4).
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Affiliation(s)
- Tao Zhao
- Hubei Hongshan Laboratory, Fishery College, Huazhong Agricultural University, Wuhan 430070, China
| | - Xiao-Ying Tan
- Hubei Hongshan Laboratory, Fishery College, Huazhong Agricultural University, Wuhan 430070, China
| | - Kostas Pantopoulos
- Lady Davis Institute for Medical Research and Department of Medicine, McGill University, Montreal, Quebec H3T1E2, Canada
| | - Jie-Jie Xu
- Hubei Hongshan Laboratory, Fishery College, Huazhong Agricultural University, Wuhan 430070, China
| | - Hua Zheng
- Hubei Hongshan Laboratory, Fishery College, Huazhong Agricultural University, Wuhan 430070, China
| | - Yi-Chuang Xu
- Hubei Hongshan Laboratory, Fishery College, Huazhong Agricultural University, Wuhan 430070, China
| | - Yu-Feng Song
- Hubei Hongshan Laboratory, Fishery College, Huazhong Agricultural University, Wuhan 430070, China
| | - Zhi Luo
- Hubei Hongshan Laboratory, Fishery College, Huazhong Agricultural University, Wuhan 430070, China; Laboratory for Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266237, China.
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Zhao T, Zheng H, Xu JJ, Xu YC, Liu LL, Luo Z. MnO 2 nanoparticles and MnSO 4 differentially affected hepatic lipid metabolism through miR-92a/acsl3-dependent de novo lipogenesis in yellow catfish Pelteobagrusfulvidraco. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 336:122416. [PMID: 37598932 DOI: 10.1016/j.envpol.2023.122416] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Revised: 08/13/2023] [Accepted: 08/17/2023] [Indexed: 08/22/2023]
Abstract
With the increasing production and use of MnO2 NPs and MnSO4 in various fields, their discharge into the aquatic environment is inevitable, which poses potential threats to aquatic organisms and humans. However, to date, few studies have been conducted to investigate the potential mechanism of the toxicity of MnO2 NPs, and a comprehensive understanding of the differences between this mechanism and the toxicity mechanism of inorganic Mn (MnSO4) is still lacking. Since lipid metabolism-relevant parameters have been widely recognized as novel biomarkers for risk assessment of environmental contaminants, the present study investigated the differential mechanisms of how MnO2 NPs and MnSO4 affect hepatic lipid metabolism in a freshwater fish yellow catfish. Compared to MnSO4, dietary MnO2 NPs caused liver injury, increased hepatic lipid accumulation and induced lipotoxicity, and up-regulated mRNA expression of de novo lipogenic genes. Moreover, MnO2 NPs downregulated the expression of miR-92a and miR-92b-3p, microRNAs involved in regulation of lipid metabolism, in the liver. Mechanistically, we found that acls3, an acetyl-coenzyme A synthetase, is target gene of miR-92a, and miR-92a-acsl3-dependent de novo lipogenesis contributes to lipid accumulation and lipotoxicity induced by MnO2 NPs. Collectively, these findings provided novel insights into mechanism whereby miRNAs mediate nanoparticles- and inorganic Mn-induced hepatic lipotoxicity and changes of lipid metabolism in vertebrates. Our findings also shed new perspective for ecotoxicity and ecological risk of MnO2 NPs and MnSO4 in aquatic environment.
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Affiliation(s)
- Tao Zhao
- Hubei Hongshan Laboratory, Fishery College, Huazhong Agricultural University, Wuhan, 430070, China
| | - Hua Zheng
- Hubei Hongshan Laboratory, Fishery College, Huazhong Agricultural University, Wuhan, 430070, China
| | - Jie-Jie Xu
- Hubei Hongshan Laboratory, Fishery College, Huazhong Agricultural University, Wuhan, 430070, China
| | - Yi-Chuang Xu
- Hubei Hongshan Laboratory, Fishery College, Huazhong Agricultural University, Wuhan, 430070, China
| | - Lu-Lu Liu
- Hubei Hongshan Laboratory, Fishery College, Huazhong Agricultural University, Wuhan, 430070, China
| | - Zhi Luo
- Hubei Hongshan Laboratory, Fishery College, Huazhong Agricultural University, Wuhan, 430070, China; Laboratory for Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266237, China.
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Abdelrahman SA, El-Shal AS, Abdelrahman AA, Saleh EZH, Mahmoud AA. Neuroprotective effects of quercetin on the cerebellum of zinc oxide nanoparticles (ZnoNps)-exposed rats. Tissue Barriers 2023; 11:2115273. [PMID: 35996208 PMCID: PMC10364653 DOI: 10.1080/21688370.2022.2115273] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Revised: 08/08/2022] [Accepted: 08/16/2022] [Indexed: 10/15/2022] Open
Abstract
Engineered nanomaterials induce hazardous effects at the cellular and molecular levels. We investigated different mechanisms underlying the neurotoxic potential of zinc oxide nanoparticles (ZnONPs) on cerebellar tissue and clarified the ameliorative role of Quercetin supplementation. Forty adult male albino rats were divided into control group (I), ZnONPs-exposed group (II), and ZnONPs and Quercetin group (III). Oxidative stress biomarkers (MDA & TOS), antioxidant biomarkers (SOD, GSH, GR, and TAC), serum interleukins (IL-1β, IL-6, IL-8), and tumor necrosis factor alpha (TNF-α) were measured. Serum micro-RNA (miRNA): miRNA-21-5p, miRNA-122-5p, miRNA-125b-5p, and miRNA-155-3p expression levels were quantified by real-time quantitative polymerase-chain reaction (RT-QPCR). Cerebellar tissue sections were stained with Hematoxylin & Eosin and Silver stains and examined microscopically. Expression levels of Calbindin D28k, GFAP, and BAX proteins in cerebellar tissue were detected by immunohistochemistry. Quercetin supplementation lowered oxidative stress biomarkers levels and ameliorated the antioxidant parameters that were decreased by ZnONPs. No significant differences in GR activity were detected between the study groups. ZnONPs significantly increased serum IL-1β, IL-6, IL-8, and TNF-α which were improved with Quercetin. Serum miRNA-21-5p, miRNA-122-5p, miRNA-125b-5p, and miRNA-155-p expression levels showed significant increase in ZnONPs group, while no significant difference was observed between Quercetin-treated group and control group. ZnONPs markedly impaired cerebellar tissue structure with decreased levels of calbindin D28k, increased BAX and GFAP expression. Quercetin supplementation ameliorated cerebellar tissue apoptosis, gliosis and improved calbindin levels. In conclusion: Quercetin supplementation ameliorated cerebellar neurotoxicity induced by ZnONPs at cellular and molecular basis by different studied mechanisms.Abbreviations: NPs: Nanoparticles, ROS: reactive oxygen species, ZnONPs: Zinc oxide nanoparticles, AgNPs: silver nanoparticles, BBB: blood-brain barrier, ncRNAs: Non-coding RNAs, miRNA: Micro RNA, DMSO: Dimethyl sulfoxide, LPO: lipid peroxidation, MDA: malondialdehyde, TBA: thiobarbituric acid, TOS: total oxidative status, ELISA: enzyme-linked immunosorbent assay, H2O2: hydrogen peroxide, SOD: superoxide dismutase, GR: glutathione reductase, TAC: total antioxidant capacity, IL-1: interleukin-1, TNF: tumor necrosis factor alpha, cDNA: complementary DNA, RT-QPCR: Real-time quantitative polymerase-chain reaction, ABC: Avidin biotin complex technique, DAB: 3', 3-diaminobenzidine, SPSS: Statistical Package for Social Sciences, ANOVA: One way analysis of variance, Tukey's HSD: Tukey's Honestly Significant Difference, GFAP: glial fiberillar acitic protein, iNOS: Inducible nitric oxide synthase, NO: nitric oxide, HO-1: heme oxygenase-1, Nrf2: nuclear factor erythroid 2-related factor 2, NF-B: nuclear factor-B, SCI: spinal cord injury, CB: Calbindin.
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Affiliation(s)
- Shaimaa A. Abdelrahman
- Medical Histology and Cell Biology Department, Faculty of Medicine, Zagazig University, Zagazig, Egypt
| | - Amal S. El-Shal
- Medical Biochemistry and Molecular Biology Department, Faculty of Medicine, Zagazig University, Zagazig, Egypt
- Medical Biochemistry and Molecular Biology Department, Armed Forces College of Medicine (AFCM), Cairo, Egypt
| | - Abeer A. Abdelrahman
- Medical Biochemistry and Molecular Biology Department, Faculty of Medicine, Zagazig University, Zagazig, Egypt
| | - Ebtehal Zaid Hassen Saleh
- Medical Histology and Cell Biology Department, Faculty of Medicine, Zagazig University, Zagazig, Egypt
| | - Abeer A. Mahmoud
- Medical Histology and Cell Biology Department, Faculty of Medicine, Zagazig University, Zagazig, Egypt
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Khabib MNH, Sivasanku Y, Lee HB, Kumar S, Kue CS. Alternative animal models in predictive toxicology. Toxicology 2022; 465:153053. [PMID: 34838596 DOI: 10.1016/j.tox.2021.153053] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Revised: 11/16/2021] [Accepted: 11/23/2021] [Indexed: 11/28/2022]
Abstract
Toxicity testing relies heavily on animals, especially rodents as part of the non-clinical laboratory testing of substances. However, the use of mammalians and the number of animals employed in research has become a concern for institutional ethics committees. Toxicity testing involving rodents and other mammals is laborious and costly. Alternatively, non-rodent models are used as replacement, as they have less ethical considerations and are cost-effective. Of the many alternative models that can be used as replacement models, which ones can be used in predictive toxicology? What is the correlation between these models and rodents? Are there standardized protocols governing the toxicity testing of these commonly used predictive models? This review outlines the common alternative animal models for predictive toxicology to address the importance of these models, the challenges, and their standard testing protocols.
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Affiliation(s)
- Muhammad Nur Hamizan Khabib
- Faculty of Health and Life Science, Management and Science University, Seksyen 13, 40100, Shah Alam, Selangor, Malaysia
| | - Yogeethaa Sivasanku
- Faculty of Health and Life Science, Management and Science University, Seksyen 13, 40100, Shah Alam, Selangor, Malaysia
| | - Hong Boon Lee
- School of Biosciences, Taylor's University Lakesike Campus, 47500, Subang Jaya, Malaysia
| | - Suresh Kumar
- Faculty of Health and Life Science, Management and Science University, Seksyen 13, 40100, Shah Alam, Selangor, Malaysia
| | - Chin Siang Kue
- Faculty of Health and Life Science, Management and Science University, Seksyen 13, 40100, Shah Alam, Selangor, Malaysia.
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Giambò F, Leone GM, Gattuso G, Rizzo R, Cosentino A, Cinà D, Teodoro M, Costa C, Tsatsakis A, Fenga C, Falzone L. Genetic and Epigenetic Alterations Induced by Pesticide Exposure: Integrated Analysis of Gene Expression, microRNA Expression, and DNA Methylation Datasets. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:ijerph18168697. [PMID: 34444445 PMCID: PMC8394939 DOI: 10.3390/ijerph18168697] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Revised: 08/12/2021] [Accepted: 08/16/2021] [Indexed: 02/07/2023]
Abstract
Environmental or occupational exposure to pesticides is considered one of the main risk factors for the development of various diseases. Behind the development of pesticide-associated pathologies, there are both genetic and epigenetic alterations, where these latter are mainly represented by the alteration in the expression levels of microRNAs and by the change in the methylation status of the DNA. At present, no studies have comprehensively evaluated the genetic and epigenetic alterations induced by pesticides; therefore, the aim of the present study was to identify modifications in gene miRNA expression and DNA methylation useful for the prediction of pesticide exposure. For this purpose, an integrated analysis of gene expression, microRNA expression, and DNA methylation datasets obtained from the GEO DataSets database was performed to identify putative genes, microRNAs, and DNA methylation hotspots associated with pesticide exposure and responsible for the development of different diseases. In addition, DIANA-miRPath, STRING, and GO Panther prediction tools were used to establish the functional role of the putative biomarkers identified. The results obtained demonstrated that pesticides can modulate the expression levels of different genes and induce different epigenetic alterations in the expression levels of miRNAs and in the modulation of DNA methylation status.
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Affiliation(s)
- Federica Giambò
- CEMAD Digestive Disease Center, Fondazione Policlinico Universitario “A. Gemelli” IRCCS, Università Cattolica del Sacro Cuore, 00168 Roma, Italy;
| | - Gian Marco Leone
- Department of Biomedical and Biotechnological Sciences, University of Catania, 95123 Catania, Italy; (G.M.L.); (G.G.); (R.R.); (A.C.)
| | - Giuseppe Gattuso
- Department of Biomedical and Biotechnological Sciences, University of Catania, 95123 Catania, Italy; (G.M.L.); (G.G.); (R.R.); (A.C.)
| | - Roberta Rizzo
- Department of Biomedical and Biotechnological Sciences, University of Catania, 95123 Catania, Italy; (G.M.L.); (G.G.); (R.R.); (A.C.)
| | - Alessia Cosentino
- Department of Biomedical and Biotechnological Sciences, University of Catania, 95123 Catania, Italy; (G.M.L.); (G.G.); (R.R.); (A.C.)
| | - Diana Cinà
- Health Management of the “Cannizzaro” Emergency Hospital of Catania, 95126 Catania, Italy;
- Clinical Pathology and Clinical Molecular Biology Unit, “Garibaldi Centro” Hospital, ARNAS Garibaldi, 95123 Catania, Italy
| | - Michele Teodoro
- Department of Biomedical and Dental Sciences and Morphofunctional Imaging, Occupational Medicine Section, University of Messina, 98125 Messina, Italy; (M.T.); (C.F.)
| | - Chiara Costa
- Clinical and Experimental Medicine Department, University of Messina, 98125 Messina, Italy;
| | - Aristides Tsatsakis
- Department of Forensic Sciences and Toxicology, Faculty of Medicine, University of Crete, 71003 Heraklion, Greece;
| | - Concettina Fenga
- Department of Biomedical and Dental Sciences and Morphofunctional Imaging, Occupational Medicine Section, University of Messina, 98125 Messina, Italy; (M.T.); (C.F.)
| | - Luca Falzone
- Epidemiology and Biostatistics Unit, National Cancer Institute-IRCCS ‘Fondazione G. Pascale’, 80131 Naples, Italy
- Correspondence: ; Tel.: +39-095-478-1278
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Hu M, Palić D. Role of MicroRNAs in regulation of DNA damage in monocytes exposed to polystyrene and TiO 2 nanoparticles. Toxicol Rep 2020; 7:743-751. [PMID: 32579136 PMCID: PMC7305267 DOI: 10.1016/j.toxrep.2020.05.007] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2019] [Revised: 05/11/2020] [Accepted: 05/27/2020] [Indexed: 12/18/2022] Open
Abstract
Time and dose dependent DNA damage profile was established to determine the genotoxicity of PSNPs and nano-TiO2-ARS. Expression of DNA damage repairing genes was elevated post nano-TiO2-ARS, but not post PSNPs exposure. miRNA expression screening with different potential activators revealed miR-155-5p as best candidate. Transfection of miR-155-5p mimic influenced expression of genes invovled in DNA damage post expousre to TiO2 and PSNPs. miR-155-5p showed the highest potential to be used as biomarker for PSNPs and nano-TiO2-ARS induced adverse effects.
The release of nanoparticles into the environment can interfere with the health of the exposed organisms. MicroRNAs have been suggested as potential toxicology biomarkers. The expression of potential zebrafish nano-toxicity biomarker miRNAs in our previous study was validated in THP-1 human monocytic cell line after exposure to polystyrene (PSNPs) and ARS labeled Titanium dioxide nanoparticles (nano-TiO2-ARS). miRNAs expression post exposure to PLGA nanoparticles and E. coli BioParticles was used to exclude potential activation and engagement of miRNAs through phagocytosis or pro-inflammatory specific responses. miR-155-5p showed the highest potential to be used as biomarker for PSNPs and nano-TiO2-ARS induced toxicity. To determine effects of PSNPs and nano-TiO2-ARS on genotoxicity, time and dose dependent DNA damage profile was established. Severe DNA damage was triggered by both nanoparticles, and expression of DNA damage repairing genes was elevated post nano-TiO2-ARS, but not post PSNPs exposure, questioning the utility of the comet assay as universal assessment tool for genotoxicity induced by nanoparticles in general. Transfection of miR-155-5p mimic influenced the expression of miR-155-5p related, DNA damage responsible genes post both nano-TiO2-ARS and PSNPs exposure. Transfection results suggest significant involvement of miR-155-5p in gene repair mechanisms triggered by adverse effects of PSNPs and nano-TiO2-ARS on monocytes.
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Affiliation(s)
- Moyan Hu
- Chair for Fish Diseases and Fisheries Biology, Faculty of Veterinary Medicine, Ludwig Maximilian University of Munich, Munich, Germany
| | - Dušan Palić
- Chair for Fish Diseases and Fisheries Biology, Faculty of Veterinary Medicine, Ludwig Maximilian University of Munich, Munich, Germany
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Balasubramanian S, Gunasekaran K, Sasidharan S, Jeyamanickavel Mathan V, Perumal E. MicroRNAs and Xenobiotic Toxicity: An Overview. Toxicol Rep 2020; 7:583-595. [PMID: 32426239 PMCID: PMC7225592 DOI: 10.1016/j.toxrep.2020.04.010] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2020] [Revised: 04/13/2020] [Accepted: 04/19/2020] [Indexed: 12/27/2022] Open
Abstract
The advent of new technologies has paved the rise of various chemicals that are being employed in industrial as well as consumer products. This leads to the accumulation of these xenobiotic compounds in the environment where they pose a serious threat to both target and non-target species. miRNAs are one of the key epigenetic mechanisms that have been associated with toxicity by modulating the gene expression post-transcriptionally. Here, we provide a comprehensive view on miRNA biogenesis, their mechanism of action and, their possible role in xenobiotic toxicity. Further, we review the recent in vitro and in vivo studies involved in xenobiotic exposure induced miRNA alterations and the mRNA-miRNA interactions. Finally, we address the challenges associated with the miRNAs in toxicological studies.
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Key Words
- ADAMTS9, A disintegrin and metalloproteinase with thrombospondin motifs 9
- AHR, Aryl Hydrocarbon Receptor
- AMPK, Adenosine Monophosphate-activated protein kinase
- ARRB1, Arrestin beta 1
- Ag, Silver
- Al2O3, Aluminium oxide
- Au, Gold
- Aβ, Amyloid Beta
- BCB, Blood-cerebrospinal fluid barrier
- BNIP3−3, BCL2/adenovirus E1B 19 kDa protein-interacting protein 3
- BaP, Benzo[a]pyrene
- Biomarkers
- CCNB1, Cyclin B1
- CDC25A, M-phase inducer phosphatase 1
- CDC25C, M-phase inducer phosphatase 3
- CDK, Cyclin-dependent Kinase
- CDK1, Cyclin-dependent kinase 1
- CDK6, Cyclin-dependent kinase 6
- CDKN1b, Cyclin-dependent kinase Inhibitor 1B
- CEC, Contaminants of Emerging Concern
- COPD, Chronic obstructive pulmonary disease
- COX2, Cyclooxygenase-2
- CTGF, Connective Tissue Growth Factor
- DGCR8, DiGeorge syndrome chromosomal [or critical] region 8
- DNA, Deoxy ribonucleic acid
- DON, Deoxynivalenol
- ER, Endoplasmic Reticulum
- Environment
- Epigenetics
- Fadd, Fas-associated protein with death domain
- GTP, Guanosine triphosphate
- Gene regulation
- Grp78/BIP, Binding immunoglobulin protein
- HSPA1A, Heat shock 70 kDa protein 1
- Hpf, Hours post fertilization
- IL-6, Interleukin 6
- IL1R1, Interleukin 1 receptor, type 1
- LIN28B, Lin-28 homolog B
- LRP-1-, Low density lipoprotein receptor-related protein 1
- MAPK, Mitogen Activated Protein Kinase
- MC-LR, Microcystin-Leucine Arginine
- MC-RR, Microcystin-Arginine Arginine
- MRE, MicroRNA Response Elements
- Mn, Manganese
- NASH, Non-alcoholic steatohepatitis
- NET1, Neuroepithelial Cell Transforming 1
- NF- ҡB, Nuclear Factor kappa-light-chain-enhancer of activated B cells
- NFKBAP, NFKB Activating protein-1
- NMDAR, N-methyl-d-aspartate receptor
- NPs, Nanoparticles
- Non-coding RNAs
- Nrf2, Nuclear factor erythroid 2-related factor 2
- PDCD4, Programmed cell death protein 4
- PFAS, Poly-fluoroalkyl substances
- PM2.5, Particulate Matter2.5
- RISC, RNA-induced silencing complex
- RNA, Ribonucleic acid
- RNAi, RNA interference
- RNase III, Ribonuclease III
- SEMA6D, Semaphorin-6D
- SOLiD, Sequencing by Oligonucleotide Ligation and Detection
- SPIONs, Superparamagnetic Iron Oxide Nanoparticles
- SiO2, Silicon dioxide
- TCDD, 2,3,7,8-Tetrachlorodibenzodioxin
- TNF-α, Tumor necrosis factor – alpha
- TP53, Tumor protein 53
- TRBP, Transactivation Response RNA Binding Protein
- Toxicity
- UTR, Untranslated region
- WHO, World Health Organization
- Wnt, Wingless-related integration site
- ZEA, Zearalanone
- Zn, Zinc
- bcl2l11, B-cell lymphoma-2-like protein 11
- ceRNA, Competing endogenous RNA
- lncRNAs, Long non-coding RNA
- mRNA, Messenger RNA
- miRNA, MicroRNA
- qRT-PCR, quantitative Real Time-Polymerase Chain Reaction
- ripk 1, Receptor-interacting serine/threonine-protein kinase 1
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Affiliation(s)
| | - Kanmani Gunasekaran
- Molecular Toxicology Laboratory, Department of Biotechnology, Bharathiar University, Coimbatore, 641 046, India
| | - Saranyadevi Sasidharan
- Molecular Toxicology Laboratory, Department of Biotechnology, Bharathiar University, Coimbatore, 641 046, India
| | | | - Ekambaram Perumal
- Molecular Toxicology Laboratory, Department of Biotechnology, Bharathiar University, Coimbatore, 641 046, India
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Ahkin Chin Tai JK, Freeman JL. Zebrafish as an integrative vertebrate model to identify miRNA mechanisms regulating toxicity. Toxicol Rep 2020; 7:559-570. [PMID: 32373477 PMCID: PMC7195498 DOI: 10.1016/j.toxrep.2020.03.010] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Revised: 03/22/2020] [Accepted: 03/24/2020] [Indexed: 12/12/2022] Open
Abstract
Zebrafish are an established vertebrate model for toxicity studies. Zebrafish have a fully sequenced genome and the capability to create genetic models. Zebrafish have over 80 % homology for genes related to human disease. Functions of miRNAs in the zebrafish genome are being characterized. Zebrafish are ideal for mechanistic studies on how miRNAs regulate toxicity.
Zebrafish (Danio rerio) are an integrative vertebrate model ideal for toxicity studies. The zebrafish genome is sequenced with detailed characterization of all life stages. With their genetic similarity to humans, zebrafish models are established to study biological processes including development and disease mechanisms for translation to human health. The zebrafish genome, similar to other eukaryotic organisms, contains microRNAs (miRNAs) which function along with other epigenetic mechanisms to regulate gene expression. Studies have now established that exposure to toxins and xenobiotics can change miRNA expression profiles resulting in various physiological and behavioral alterations. In this review, we cover the intersection of miRNA alterations from toxin or xenobiotic exposure with a focus on studies using the zebrafish model system to identify miRNA mechanisms regulating toxicity. Studies to date have addressed exposures to toxins, particulate matter and nanoparticles, various environmental contaminants including pesticides, ethanol, and pharmaceuticals. Current limitations of the completed studies and future directions for this research area are discussed.
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Affiliation(s)
| | - Jennifer L Freeman
- School of Health Sciences, Purdue University, West Lafayette, IN 47907 USA
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Vinken M, Suter-Dick L, Kandárová H. ESTIV2018: 20th anniversary of the International Congress on In Vitro Toxicology. Toxicol In Vitro 2019; 60:293-295. [PMID: 31220529 DOI: 10.1016/j.tiv.2019.06.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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