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Zhou Y, Li F, Fu K, Zhang Y, Zheng N, Tang H, Xu Z, Luo L, Han J, Yang L, Zhou B. Bis(2-ethylhexyl)-2,3,4,5-tetrabromophthalate Enhances foxo1-Mediated Lipophagy to Remodel Lipid Metabolism in Zebrafish Liver. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2024; 58:4581-4593. [PMID: 38422554 DOI: 10.1021/acs.est.4c00421] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/02/2024]
Abstract
An emerging environmental contaminant, bis(2-ethylhexyl)-2,3,4,5-tetrabromophthalate (TBPH), can bioaccumulate in the liver and affect hepatic lipid metabolism. However, the in-depth mechanism has yet to be comprehensively explored. In this study, we utilized transgenic zebrafish Tg (Apo14: GFP) to image the interference of TBPH on zebrafish liver development and lipid metabolism at the early development stage. Using integrated lipidomic and transcriptomic analyses to profile the lipid remodeling effect, we uncovered the potential effects of TBPH on lipophagy-related signaling pathways in zebrafish larvae. Decreased lipid contents accompanied by enhanced lipophagy were confirmed by the measurements of Oil Red O staining and transmission electron microscopy in liver tissues. Particularly, the regulatory role of the foxo1 factor was validated via its transcriptional inhibitor. Double immunofluorescence staining integrated with biochemical analysis indicated that the enhanced lipophagy and mitochondrial fatty acid oxidation induced by TBPH were reversed by the foxo1 inhibitor. To summarize, our study reveals, for the first time, the essential role of foxo1-mediated lipophagy in TBPH-induced lipid metabolic disorders and hepatoxicity, providing new insights for metabolic disease studies and ecological health risk assessment of TBPH.
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Affiliation(s)
- Yuxi Zhou
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China
| | - Fan Li
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Kaiyu Fu
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yindan Zhang
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Na Zheng
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Huijia Tang
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China
- School of Environmental Studies, China University of Geosciences, Wuhan 430074, China
| | - Zhixiang Xu
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China
- College of Fisheries and Life Science, Dalian Ocean University, Dalian 116023, China
| | - Lijun Luo
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China
- College of Fisheries and Life Science, Dalian Ocean University, Dalian 116023, China
| | - Jian Han
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China
| | - Lihua Yang
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China
| | - Bingsheng Zhou
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China
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Hernández-Juárez C, Morales-Villafaña G, López-Casillas F, Jiménez-Sánchez A. Fluorescent Probe for in Vivo Partitioning into Dynamic Lipid Droplets Enables Monitoring of Water Permeability-Induced Edema. ACS Sens 2023; 8:3076-3085. [PMID: 37477354 DOI: 10.1021/acssensors.3c00725] [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] [Indexed: 07/22/2023]
Abstract
Lipid droplets (LDs) are intracellular organelles found in most cell types from adipocytes to cancer cells. Although recent investigations have implicated LDs in numerous diseases, the current available methods to monitor them in vertebrate models rely on static imaging using fluorescent dyes, limiting the investigation of their rapid in vivo dynamics. Here, we report a fluorophore chemistry approach to enable in vivo LD dynamic monitoring using a Nernstian partitioning mechanism. Interestingly, the effect of atorvastatin and osmotic treatments toward LDs revealed an unprecedented dynamic enhancement. Then, using a designed molecular probe with an optimized response to hydration and LD dynamics applied to Zebrafish developing pericardial and yolk-sac edema, which represents a tractable model of a human cardiovascular disease, we also provide a unique dual method to detect disease evolution and recovery.
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Affiliation(s)
- Cinthia Hernández-Juárez
- Bioorganic Chemistry Laboratory (BioChela) at Instituto de Química, Universidad Nacional Autónoma de México (UNAM), Ciudad Universitaria. Circuito Exterior s/n, Coyoacán, Mexico City 04510, Mexico
| | - Gilberto Morales-Villafaña
- Laboratory of Developmental Biology at Instituto de Fisiología Celular, Universidad Nacional Autónoma de México (UNAM), Ciudad Universitaria, Circuito Exterior s/n, Coyoacán, Mexico City 04510, Mexico
| | - Fernando López-Casillas
- Laboratory of Developmental Biology at Instituto de Fisiología Celular, Universidad Nacional Autónoma de México (UNAM), Ciudad Universitaria, Circuito Exterior s/n, Coyoacán, Mexico City 04510, Mexico
| | - Arturo Jiménez-Sánchez
- Bioorganic Chemistry Laboratory (BioChela) at Instituto de Química, Universidad Nacional Autónoma de México (UNAM), Ciudad Universitaria. Circuito Exterior s/n, Coyoacán, Mexico City 04510, Mexico
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3
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Konadu B, Cox CK, Garrett MR, Gibert Y. Excess glucose or fat differentially affects metabolism and appetite-related gene expression during zebrafish embryogenesis. iScience 2023; 26:107063. [PMID: 37534154 PMCID: PMC10391732 DOI: 10.1016/j.isci.2023.107063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Revised: 03/28/2023] [Accepted: 06/02/2023] [Indexed: 08/04/2023] Open
Abstract
Zebrafish embryos use their yolk sac reserve as the sole nutrient source during embryogenesis. The two main forms of energy fuel can be found in the form of glucose or fat. Zebrafish embryos were exposed to glucose or injected with free fatty acid/Triacylglycerol (FFA/TAG) into the yolk sac at 24 hpf. At 72 hpf, glucose exposed or FFA/TAG injected had differential effects on gene expression in embryos, with fat activating lipolysis and β-oxidation and glucose activating the insulin pathway. Bulk RNA-seq revealed that more gene expression was affected by glucose exposure compared to FFA/TAGs injection. Appetite-controlling genes were also differently affected by glucose exposure or FFA/TAG injections. Because the embryo did not yet feed itself at the time of our analysis, gene expression changes occurred in absence of actual hunger and revealed how the embryo manages its nutrient intake before active feeding.
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Affiliation(s)
- Bridget Konadu
- Department of Cell and Molecular Biology, Cancer Center and Research Institute, University of Mississippi Medical Center, Jackson, MS 39216, USA
| | - Carol K. Cox
- Department of Cell and Molecular Biology, Cancer Center and Research Institute, University of Mississippi Medical Center, Jackson, MS 39216, USA
| | - Michael R. Garrett
- Department of Pharmacology and Toxicology, University of Mississippi Medical Center, Jackson, MS 39216, USA
| | - Yann Gibert
- Department of Cell and Molecular Biology, Cancer Center and Research Institute, University of Mississippi Medical Center, Jackson, MS 39216, USA
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4
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Wang W, Li Z, Zhang X, Zhang J, Ru S. Bisphenol S Impairs Behaviors through Disturbing Endoplasmic Reticulum Function and Reducing Lipid Levels in the Brain of Zebrafish. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2023; 57:582-594. [PMID: 36520979 DOI: 10.1021/acs.est.2c07828] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
The number of neurotoxic pollutants is increasing, but their mechanism of action is unclear. Here, zebrafish were exposed to 0, 1, 10, and 100 μg/L bisphenol S (BPS) for different durations beginning at 2 h postfertilization (hpf) to explore the neurotoxic mechanisms of BPS. Zebrafish larvae exposed to BPS displayed abnormal neurobehaviors. At 48 and 120 hpf, BPS inhibited yolk lipid consumption and reduced the lipid distribution in the zebrafish brain. Moreover, BPS downregulated the mRNA levels of genes involved in fatty acid elongation in the endoplasmic reticulum (ER) and activated ER stress pathways at 48 and 120 hpf, and KEGG analysis after RNA-seq showed that the protein processing pathway in the ER was significantly enriched after BPS exposure. Exposure to ER toxicants (thapsigargin and tunicamycin), two positive controls, induced neurotoxic effects on zebrafish embryos and larvae similar to those of BPS exposure. These data suggested that BPS and ER toxicants disturbed ER function and reduced brain lipid levels. Continued exposure to BPS into adulthood not only inhibited brain fatty acid elongation and ER function but also caused abnormal swelling of the ER in zebrafish. Our data provide new insights into the neurotoxic mechanism of BPS.
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Affiliation(s)
- Weiwei Wang
- College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China
| | - Ze Li
- College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China
| | - Xiaona Zhang
- College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China
| | - Jie Zhang
- College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China
| | - Shaoguo Ru
- College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China
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5
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Concha ML, Reig G. Origin, form and function of extraembryonic structures in teleost fishes. Philos Trans R Soc Lond B Biol Sci 2022; 377:20210264. [PMID: 36252221 PMCID: PMC9574637 DOI: 10.1098/rstb.2021.0264] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2022] [Accepted: 04/12/2022] [Indexed: 12/18/2022] Open
Abstract
Teleost eggs have evolved a highly derived early developmental pattern within vertebrates as a result of the meroblastic cleavage pattern, giving rise to a polar stratified architecture containing a large acellular yolk and a small cellular blastoderm on top. Besides the acellular yolk, the teleost-specific yolk syncytial layer (YSL) and the superficial epithelial enveloping layer are recognized as extraembryonic structures that play critical roles throughout embryonic development. They provide enriched microenvironments in which molecular feedback loops, cellular interactions and mechanical signals emerge to sculpt, among other things, embryonic patterning along the dorsoventral and left-right axes, mesendodermal specification and the execution of morphogenetic movements in the early embryo and during organogenesis. An emerging concept points to a critical role of extraembryonic structures in reinforcing early genetic and morphogenetic programmes in reciprocal coordination with the embryonic blastoderm, providing the necessary boundary conditions for development to proceed. In addition, the role of the enveloping cell layer in providing mechanical, osmotic and immunological protection during early stages of development, and the autonomous nutritional support provided by the yolk and YSL, have probably been key aspects that have enabled the massive radiation of teleosts to colonize every ecological niche on the Earth. This article is part of the theme issue 'Extraembryonic tissues: exploring concepts, definitions and functions across the animal kingdom'.
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Affiliation(s)
- Miguel L. Concha
- Integrative Biology Program, Institute of Biomedical Sciences (ICBM), Facultad de Medicina, Universidad de Chile, Santiago 8380453, Chile
- Biomedical Neuroscience Institute (BNI), Santiago 8380453, Chile
- Center for Geroscience, Brain Health and Metabolism (GERO), Santiago 7800003, Chile
| | - Germán Reig
- Escuela de Tecnología Médica y del Centro Integrativo de Biología y Química Aplicada (CIBQA), Universidad Bernardo O’Higgins, Santiago 7800003, Chile
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6
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Delnoy B, Haskovic M, Vanoevelen J, Steinbusch LKM, Vos EN, Knoops K, Zimmermann LJI, Noga M, Lefeber DJ, Martini PGV, Coelho AI, Rubio‐Gozalbo ME. Novel mRNA therapy restores GALT protein and enzyme activity in a zebrafish model of classic galactosemia. J Inherit Metab Dis 2022; 45:748-758. [PMID: 35527402 PMCID: PMC9541528 DOI: 10.1002/jimd.12512] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/10/2022] [Revised: 05/04/2022] [Accepted: 05/05/2022] [Indexed: 11/24/2022]
Abstract
Messenger RNA (mRNA) has emerged as a novel therapeutic approach for inborn errors of metabolism. Classic galactosemia (CG) is an inborn error of galactose metabolism caused by a severe deficiency of galactose-1-phosphate:uridylyltransferase (GALT) activity leading to neonatal illness and chronic impairments affecting the brain and female gonads. In this proof of concept study, we used our zebrafish model for CG to evaluate the potential of human GALT mRNA (hGALT mRNA) packaged in two different lipid nanoparticles to restore GALT expression and activity at early stages of development. Both one cell-stage and intravenous single-dose injections resulted in hGALT protein expression and enzyme activity in the CG zebrafish (galt knockout) at 5 days post fertilization (dpf). Moreover, the levels of galactose-1-phosphate (Gal-1-P) and galactonate, metabolites that accumulate because of the deficiency, showed a decreasing trend. LNP-packaged mRNA was effectively translated and processed in the CG zebrafish without signs of toxicity. This study shows that mRNA therapy restores GALT protein and enzyme activity in the CG zebrafish model, and that the zebrafish is a suitable system to test this approach. Further studies are warranted to assess whether repeated injections safely mitigate the chronic impairments of this disease.
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Affiliation(s)
- Britt Delnoy
- Department of PediatricsMaastricht University Medical Center+Maastrichtthe Netherlands
- GROW, Maastricht UniversityMaastrichtthe Netherlands
| | - Minela Haskovic
- Department of PediatricsMaastricht University Medical Center+Maastrichtthe Netherlands
- GROW, Maastricht UniversityMaastrichtthe Netherlands
| | - Jo Vanoevelen
- GROW, Maastricht UniversityMaastrichtthe Netherlands
- Department of Clinical GeneticsMaastricht University Medical Center+Maastrichtthe Netherlands
| | - Laura K. M. Steinbusch
- Department of Clinical GeneticsMaastricht University Medical Center+Maastrichtthe Netherlands
| | - Esther Naomi Vos
- Department of PediatricsMaastricht University Medical Center+Maastrichtthe Netherlands
| | - Kèvin Knoops
- Microscopy CORE LaboratoryMaastricht UniversityMaastrichtthe Netherlands
| | - Luc J. I. Zimmermann
- Department of PediatricsMaastricht University Medical Center+Maastrichtthe Netherlands
- GROW, Maastricht UniversityMaastrichtthe Netherlands
| | - Marek Noga
- Translational Metabolic LaboratoryRadboud University Medical CenterNijmegenthe Netherlands
| | - Dirk J. Lefeber
- Translational Metabolic LaboratoryRadboud University Medical CenterNijmegenthe Netherlands
- Department of NeurologyDonders Institute for Brain, Cognition and Behavior, Radboud University Medical CenterNijmegenthe Netherlands
| | | | - Ana I. Coelho
- Department of PediatricsMaastricht University Medical Center+Maastrichtthe Netherlands
| | - Maria Estela Rubio‐Gozalbo
- Department of PediatricsMaastricht University Medical Center+Maastrichtthe Netherlands
- GROW, Maastricht UniversityMaastrichtthe Netherlands
- Department of Clinical GeneticsMaastricht University Medical Center+Maastrichtthe Netherlands
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7
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Partial fads2 Gene Knockout Diverts LC-PUFA Biosynthesis via an Alternative Δ8 Pathway with an Impact on the Reproduction of Female Zebrafish (Danio rerio). Genes (Basel) 2022; 13:genes13040700. [PMID: 35456508 PMCID: PMC9032720 DOI: 10.3390/genes13040700] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2022] [Revised: 04/01/2022] [Accepted: 04/08/2022] [Indexed: 11/22/2022] Open
Abstract
The zebrafish (Danio rerio) genome contains a single gene fads2 encoding a desaturase (FADS2) with both Δ6 and Δ5 activities, the key player in the endogenous biosynthesis of long-chain polyunsaturated fatty acids (LC-PUFAs), which serve essential functions as membrane components, sources of energy and signaling molecules. LC-PUFAs include the precursors of eicosanoids and are thus predicted to be indispensable molecules for reproductive health in virtually all vertebrates. In mice, an amniotic vertebrate, fads2 deletion mutants, both males and females, have been confirmed to be sterile. In anamniotic vertebrates, such as fish, there is still no information available on the reproductive (in)ability of fads2 mutants, although zebrafish have become an increasingly important model of lipid metabolism, including some aspects of the generation of germ cells and early embryonic development. In the present study, we apply the CRISPR/Cas9 genome editing system to induce mutations in the zebrafish genome and create crispants displaying a degree of fads2 gene editing within the range of 50–80%. Focusing on adult G0 crispant females, we investigated the LC-PUFA profiles of eggs. Our data suggest an impaired pathway of the LC-PUFA biosynthesis of the ω6 and ω3 series in the first-rate limiting steps of the conversion of linoleic acid (LA) into γ-linolenic acid (GLA), and α-linolenic acid (ALA) into stearidonic acid (SDA), respectively, finally resulting in bad-quality eggs. Our data suggest the existence of an alternative Δ8 pathway, which bypasses the first endogenous LC-PUFA biosynthetic step in zebrafish in vivo, and suggest that the zebrafish bifunctional FADS2 enzyme is actually a trifunctional Δ6/Δ5/Δ8 desaturase.
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8
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Pant DC, Nazarko TY. Selective autophagy: the rise of the zebrafish model. Autophagy 2021; 17:3297-3305. [PMID: 33228439 PMCID: PMC8632090 DOI: 10.1080/15548627.2020.1853382] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Accepted: 11/16/2020] [Indexed: 12/31/2022] Open
Abstract
Selective autophagy is a specific elimination of certain intracellular substrates by autophagic pathways. The most studied macroautophagy pathway involves tagging and recognition of a specific cargo by the autophagic membrane (phagophore) followed by the complete sequestration of targeted cargo from the cytosol by the double-membrane vesicle, autophagosome. Until recently, the knowledge about selective macroautophagy was minimal, but now there is a panoply of links elucidating how phagophores engulf their substrates selectively. The studies of selective autophagy processes have further stressed the importance of using the in vivo models to validate new in vitro findings and discover the physiologically relevant mechanisms. However, dissecting how the selective autophagy occurs yet remains difficult in living organisms, because most of the organelles are relatively inaccessible to observation and experimental manipulation in mammals. In recent years, zebrafish (Danio rerio) is widely recognized as an excellent model for studying autophagic processes in vivo because of its optical accessibility, genetic manipulability and translational potential. Several selective autophagy pathways, such as mitophagy, xenophagy, lipophagy and aggrephagy, have been investigated using zebrafish and still need to be studied further, while other selective autophagy pathways, such as pexophagy or reticulophagy, could also benefit from the use of the zebrafish model. In this review, we shed light on how zebrafish contributed to our understanding of these selective autophagy processes by providing the in vivo platform to study them at the organismal level and highlighted the versatility of zebrafish model in the selective autophagy field.Abbreviations: AD: Alzheimer disease; ALS: amyotrophic lateral sclerosis; Atg: autophagy-related; CMA: chaperone-mediated autophagy; CQ: chloroquine; HsAMBRA1: human AMBRA1; KD: knockdown; KO: knockout; LD: lipid droplet; MMA: methylmalonic acidemia; PD: Parkinson disease; Tg: transgenic.
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Affiliation(s)
- Devesh C. Pant
- Department of Biology, Georgia State University, Atlanta, GA, USA
| | - Taras Y. Nazarko
- Department of Biology, Georgia State University, Atlanta, GA, USA
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9
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Cooman T, Bergeron SA, Coltogirone R, Horstick E, Arroyo L. Evaluation of fentanyl toxicity and metabolism using a zebrafish model. J Appl Toxicol 2021; 42:706-714. [PMID: 34647333 DOI: 10.1002/jat.4253] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2021] [Revised: 09/18/2021] [Accepted: 09/21/2021] [Indexed: 01/02/2023]
Abstract
The increased abuse of novel drugs has created a critical need for cheap and rapid in vivo models to understand whole organism drug-induced toxicity and metabolic impacts. One such model is zebrafish, which share many similarities to human. Assays have been developed for behavioral, toxicity, and metabolism elucidation following chemical exposure. The zebrafish model provides the advantage of assessing these parameters within a single study. Previous zebrafish studies have evaluated the behavioral effects of fentanyl, but not developmental toxicity and its relation to metabolism. In this study, we evaluate the effects of fentanyl on the development of wild-type (TL strain) zebrafish and its metabolism over 4 days. Fertilized eggs were exposed to six concentrations of fentanyl (0.01, 0.1, 1, 10, 50, and 100 μM) through embryo media incubated at 28-29°C. Observations included egg coagulation, somite formation, heartbeat, tail and yolk morphology, pericardial formation, and swim bladder inflation. The incubation media was analyzed for the presence of metabolites using a targeted metabolomics approach. Fentanyl concentration caused significant effects on survival and development, with notable defects to the tail, yolk, and pericardium at 50 and 100 μM. Despropionyl fentanyl (4-ANPP), β-hydroxy fentanyl, and norfentanyl were detected in zebrafish larvae. We present a single in vivo model to assess toxicity and metabolism of fentanyl exposure in a vertebrate model system. Our findings provide a foundation for further investigations into fentanyl's mechanism of action and translation to human drug exposure.
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Affiliation(s)
- Travon Cooman
- Department of Forensic and Investigative Science, West Virginia University, Morgantown, West Virginia, USA
| | - Sadie A Bergeron
- Department of Biology, West Virginia University, Morgantown, West Virginia, USA
| | - Rebecca Coltogirone
- Department of Biology, West Virginia University, Morgantown, West Virginia, USA
| | - Eric Horstick
- Department of Biology, West Virginia University, Morgantown, West Virginia, USA
| | - Luis Arroyo
- Department of Forensic and Investigative Science, West Virginia University, Morgantown, West Virginia, USA
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10
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Zeng X, Lyu L, Zhao D, Zhong J, Feng Y, Wan H, Li C, Zhang Z, Wang Y. dLp/HDL-BGBP and MTP Cloning and Expression Profiles During Embryonic Development in the Mud Crab Scylla paramamosain. Front Physiol 2021; 12:717751. [PMID: 34489734 PMCID: PMC8416765 DOI: 10.3389/fphys.2021.717751] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Accepted: 07/22/2021] [Indexed: 11/21/2022] Open
Abstract
Lipids are the main energy source for embryonic development in oviparous animals. Prior to the utilization and catabolism, lipids are primarily transported from the yolk sac to embryonic tissues. In the present study, cDNA encoding a circulatory large lipid transfer protein (LLTP) superfamily member, the precursor of large discoidal lipoprotein (dLp) and high-density lipoprotein/β-1,3-glucan-binding protein (HDL-BGBP), named dLp/HDL-BGBP of 14,787 bp in length, was cloned from the mud crab Scylla paramamosain. dLp/HDL-BGBP was predicted to encode a 4,831 amino acids (aa) protein that was the precursor of dLp and HDL-BGBP, which were both detected in hemolymph by liquid chromatography–mass spectrometry (LC-MS/MS) analysis. For the intracellular LLTP, three microsomal triglyceride transfer protein (MTP) cDNAs of 2,905, 2,897, and 3,088 bp in length were cloned from the mud crab and were predicted to encode MTP-A of 881 aa, MTP-B of 889 aa, and MTP-C of 919 aa, respectively, which were different merely in the N-terminal region and shared an identical sequence of 866 aa. During embryonic development, the expression level of dLp/HDL-BGBP consecutively increased from the early appendage formation stage to the eye pigment-formation stage, which indicated that HDL-BGBP is probably the scaffolding protein for yolk lipid. For the MTP gene, MTP-C accounted for ~70% of MTP mRNA from the blastocyst stage to the nauplius stage, as well as the pre-hatching stage; MTP-C and MTP-A expression levels were comparable from the early appendage formation stage to the late eye pigment-formation stage; MTP-A was extremely low in blastocyst and gastrula stages; MTP-B was expressed at a relatively low-level throughout embryo development. The variations in the expression profiles among MTP transcripts suggested that MTP might play roles in the lipid droplet maturation and lipoprotein assembly during embryonic development.
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Affiliation(s)
- Xianyuan Zeng
- Key Laboratory of Healthy Mariculture for the East China Sea, Ministry of Agriculture and Rural Affairs, Fisheries College, Jimei University, Xiamen, China.,School of Life Sciences, Ningde Normal University, Ningde, China
| | - Liang Lyu
- Key Laboratory of Healthy Mariculture for the East China Sea, Ministry of Agriculture and Rural Affairs, Fisheries College, Jimei University, Xiamen, China
| | - Dousha Zhao
- Key Laboratory of Healthy Mariculture for the East China Sea, Ministry of Agriculture and Rural Affairs, Fisheries College, Jimei University, Xiamen, China
| | - Jinying Zhong
- Key Laboratory of Healthy Mariculture for the East China Sea, Ministry of Agriculture and Rural Affairs, Fisheries College, Jimei University, Xiamen, China
| | - Yan Feng
- Key Laboratory of Healthy Mariculture for the East China Sea, Ministry of Agriculture and Rural Affairs, Fisheries College, Jimei University, Xiamen, China
| | - Haifu Wan
- Key Laboratory of Healthy Mariculture for the East China Sea, Ministry of Agriculture and Rural Affairs, Fisheries College, Jimei University, Xiamen, China
| | - Chunyang Li
- Department of Student Affairs, Ningde Normal University, Ningde, China
| | - Ziping Zhang
- Key Laboratory of Marine Biotechnology of Fujian Province, Institute of Oceanology, College of Animal Science, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Yilei Wang
- Key Laboratory of Healthy Mariculture for the East China Sea, Ministry of Agriculture and Rural Affairs, Fisheries College, Jimei University, Xiamen, China
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11
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Evolution and Functional Characteristics of the Novel elovl8 That Play Pivotal Roles in Fatty Acid Biosynthesis. Genes (Basel) 2021; 12:genes12081287. [PMID: 34440461 PMCID: PMC8392482 DOI: 10.3390/genes12081287] [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: 06/23/2021] [Revised: 08/15/2021] [Accepted: 08/18/2021] [Indexed: 12/20/2022] Open
Abstract
Elongation of very long-chain fatty acid (Elovl) proteins are key enzymes that catalyze the rate-limiting step in the fatty acid elongation pathway. The most recently discovered member of the Elovl family, Elovl8, has been proposed to be a fish-specific elongase with two gene paralogs described in teleosts. However, the biological functions of Elovl8 are still to be elucidated. In this study, we showed that in contrast to previous findings, elovl8 is not unique to teleosts, but displays a rather unique and ample phylogenetic distribution. For functional determination, we generated elovl8a (elovl8a−/−) and elovl8b (elovl8b−/−) zebrafish using CRISPR/Cas9 technology. Fatty acid composition in vivo and zebrafish liver cell experiments suggest that the substrate preference of Elovl8 overlapped with other existing Elovl enzymes. Zebrafish Elovl8a could elongate the polyunsaturated fatty acids (PUFAs) C18:2n-6 and C18:3n-3 to C20:2n-6 and C20:3n-3, respectively. Along with PUFA, zebrafish Elovl8b also showed the capacity to elongate C18:0 and C20:1. Gene expression quantification suggests that Elovl8a and Elovl8b may play a potentially important role in fatty acid biosynthesis. Overall, our results provide novel insights into the function of Elovl8a and Elovl8b, representing additional fatty acid elongases not previously described in chordates.
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12
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Patton EE, Zon LI, Langenau DM. Zebrafish disease models in drug discovery: from preclinical modelling to clinical trials. Nat Rev Drug Discov 2021; 20:611-628. [PMID: 34117457 PMCID: PMC9210578 DOI: 10.1038/s41573-021-00210-8] [Citation(s) in RCA: 180] [Impact Index Per Article: 60.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/12/2021] [Indexed: 02/03/2023]
Abstract
Numerous drug treatments that have recently entered the clinic or clinical trials have their genesis in zebrafish. Zebrafish are well established for their contribution to developmental biology and have now emerged as a powerful preclinical model for human disease, as their disease characteristics, aetiology and progression, and molecular mechanisms are clinically relevant and highly conserved. Zebrafish respond to small molecules and drug treatments at physiologically relevant dose ranges and, when combined with cell-specific or tissue-specific reporters and gene editing technologies, drug activity can be studied at single-cell resolution within the complexity of a whole animal, across tissues and over an extended timescale. These features enable high-throughput and high-content phenotypic drug screening, repurposing of available drugs for personalized and compassionate use, and even the development of new drug classes. Often, drugs and drug leads explored in zebrafish have an inter-organ mechanism of action and would otherwise not be identified through targeted screening approaches. Here, we discuss how zebrafish is an important model for drug discovery, the process of how these discoveries emerge and future opportunities for maximizing zebrafish potential in medical discoveries.
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Affiliation(s)
- E Elizabeth Patton
- MRC Human Genetics Unit and Cancer Research UK Edinburgh Centre, MRC Institute of Genetics and Cancer, Western General Hospital Campus, University of Edinburgh, Edinburgh, UK.
| | - Leonard I Zon
- Stem Cell Program and Division of Hematology/Oncology, Boston 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, MA, USA.
| | - David M Langenau
- Department of Pathology, Massachusetts General Research Institute, Boston, MA, USA.
- Center of Cancer Research, Massachusetts General Hospital, Charlestown, MA, USA.
- Harvard Stem Cell Institute, Harvard University, Boston, MA, USA.
- Center of Regenerative Medicine, Massachusetts General Hospital, Boston, MA, USA.
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13
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A network-based approach to identify protein kinases critical for regulating srebf1 in lipid deposition causing obesity. Funct Integr Genomics 2021; 21:557-570. [PMID: 34327622 DOI: 10.1007/s10142-021-00798-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2021] [Revised: 07/09/2021] [Accepted: 07/15/2021] [Indexed: 12/12/2022]
Abstract
Obesity is a rapidly growing health pandemic, underlying a wide variety of disease conditions leading to increases in global mortality. It is known that the phosphorylation of various proteins regulates sterol regulatory element-binding transcription factors 1 (srebf1), a key lipogenic transcription factor, to cause the development of obesity. To detect the key protein kinases for regulating srebf1 in lipid deposition, we established the srebf1 knockout model in zebrafish (KO, srebf1-/-) by CRISPR/Cas9. The KO zebrafish exhibited a significant reduction of total free fatty acid content (fell 60.5%) and lipid deposition decrease compared with wild-type (WT) zebrafish. Meanwhile, srebf1 deletion in zebrafish eliminated lipid deposition induced by high-fat diet feeding. Compared with WT zebrafish, a total of 697 differentially expressed proteins and 316 differentially expressed phosphoproteins with 439 sites were identified in KO by differential proteomic and phosphoproteomic analyses. A significant number of proteins identified were involved in lipid and glucose metabolism. Moreover, some protein kinases critical for regulating srebf1 in lipid deposition, including Cdk2, Pkc, Prkceb, mTORC1, Mapk12, and Wnk1, were determined by network analyses. An in vitro study was performed to verify the network analysis results. Our findings provide potential targets (kinases) for human obesity treatments.
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14
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Hu J, Yang R, Qin H, Sun Y, Qu L, Li Z. Spying on the Polarity Dynamics during Wound Healing of Zebrafish by Using Rationally Designed Carbon Dots. Adv Healthc Mater 2021; 10:e2002268. [PMID: 34165910 DOI: 10.1002/adhm.202002268] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Revised: 05/27/2021] [Indexed: 12/20/2022]
Abstract
Wound healing is an essential and complex biological process. Research into its mechanism and factors that influence its effectiveness has led to better treatments. Changes in the microenvironment are demonstrated to affect wound healing. Cell polarity is a significant microenvironment-related parameter that is associated with many physiological and pathological activities. However, dynamic changes in polarity during wound healing have not been investigated. Monitoring cell polarity during wound healing may open up a new avenue for developing better treatments. Here, a method is developed to monitor cell polarity that involved taking advantage of the fascinating optical properties and biocompatibility of carbon dots (CDs). Specifically, near-infrared (NIR) polarity-sensitive N-phenyl-p-phenylenediamine (PPh-CDs) are successfully prepared, which exhibit high sensitivity to polarity, with 509-fold stronger fluorescence in dioxane than in water. The PPh-CDs are successfully applied to monitor the changes of lysosomal polarity during starvation conditions. Using this method, dynamic changes of polarity during wound healing of zebrafish are monitored for the first time. Upon an amputation performed at the zebrafish tail, stronger PPh-CDs fluorescence appeared at the wound sites, and the intensity increased for 25 min and then gradually decreased. This report provides an important experimental basis for investigating wound healing by employing polarity-sensitive CDs.
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Affiliation(s)
- Jingyu Hu
- College of Chemistry Green Catalysis Center Henan Joint International Research Laboratory of Green Construction of Functional Molecules and Their Bioanalytical Applications Zhengzhou Key Laboratory of Functional Nanomaterial and Medical Theranostic Zhengzhou University Zhengzhou 450001 P. R. China
| | - Ran Yang
- College of Chemistry Green Catalysis Center Henan Joint International Research Laboratory of Green Construction of Functional Molecules and Their Bioanalytical Applications Zhengzhou Key Laboratory of Functional Nanomaterial and Medical Theranostic Zhengzhou University Zhengzhou 450001 P. R. China
| | - Haoyue Qin
- College of Chemistry Green Catalysis Center Henan Joint International Research Laboratory of Green Construction of Functional Molecules and Their Bioanalytical Applications Zhengzhou Key Laboratory of Functional Nanomaterial and Medical Theranostic Zhengzhou University Zhengzhou 450001 P. R. China
| | - Yuanqiang Sun
- College of Chemistry Green Catalysis Center Henan Joint International Research Laboratory of Green Construction of Functional Molecules and Their Bioanalytical Applications Zhengzhou Key Laboratory of Functional Nanomaterial and Medical Theranostic Zhengzhou University Zhengzhou 450001 P. R. China
| | - Lingbo Qu
- College of Chemistry Green Catalysis Center Henan Joint International Research Laboratory of Green Construction of Functional Molecules and Their Bioanalytical Applications Zhengzhou Key Laboratory of Functional Nanomaterial and Medical Theranostic Zhengzhou University Zhengzhou 450001 P. R. China
| | - Zhaohui Li
- College of Chemistry Green Catalysis Center Henan Joint International Research Laboratory of Green Construction of Functional Molecules and Their Bioanalytical Applications Zhengzhou Key Laboratory of Functional Nanomaterial and Medical Theranostic Zhengzhou University Zhengzhou 450001 P. R. China
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15
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Asslan M, Lauzon N, Beus M, Maysinger D, Rousseau S. Mass spectrometry imaging in zebrafish larvae for assessing drug safety and metabolism. Anal Bioanal Chem 2021; 413:5135-5146. [PMID: 34173039 DOI: 10.1007/s00216-021-03476-4] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Revised: 06/07/2021] [Accepted: 06/11/2021] [Indexed: 01/16/2023]
Abstract
Drug safety assessment in the early phases of drug discovery is critical to facilitate the rapid development of novel therapeutics. Recently, teleost zebrafish (Danio rerio) has emerged as a promising vertebrate model for the assessment of drug safety. Zebrafish is a convenient model because of its small size, high fecundity, embryo transparency, and ex utero development. In this study, we developed a matrix-assisted laser desorption/ionization mass spectrometry imaging (MALDI MSI) method applied to zebrafish larvae to investigate safety and metabolism of sahaquine (Sq), an anticancer agent inhibiting histone deacetylase 6. This technique improves on prior studies using liquid chromatography-mass spectrometry (LC-MS) by adding analysis of the drug spatial distribution. Using this method, it was determined that Sq dissolved in fish water (1-2000 μM) did not reach the larval body and was mainly distributed throughout the yolk. High Sq concentration (800 μM) administered intravenously allowed the compound to reach the larval body but did not induce phenotypic abnormalities. Sq was metabolized into its glucuronidated form within 24 h and was excreted within 72 h. MALDI MSI was instrumental in showing that Sq-glucuronide was mainly formed in the gut and slightly in yolk syncytial layer, and provided valuable insights into xenobiotics elimination in zebrafish larvae. This study indicates that Sq has a good safety profile and merits further investigations in other disease models. In addition, the optimized MALDI MSI protocol provided here can be widely applied to study distribution and metabolic fate of other structurally related molecules.
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Affiliation(s)
- Mariana Asslan
- Research Institute of the McGill University Health Centre, 1001 Boul. Décarie, Montréal, H4A 3J1, Canada.,Department of Pharmacology and Therapeutics, McGill University, McIntyre Medical Sciences Building, 3655 Prom. Sir-William-Osler, Montreal, H3G 1Y6, Canada
| | - Nidia Lauzon
- Research Institute of the McGill University Health Centre, 1001 Boul. Décarie, Montréal, H4A 3J1, Canada
| | - Maja Beus
- Institute for Medical Research and Occupational Health, Ksaver road 2, 10 000, Zagreb, Croatia
| | - Dusica Maysinger
- Department of Pharmacology and Therapeutics, McGill University, McIntyre Medical Sciences Building, 3655 Prom. Sir-William-Osler, Montreal, H3G 1Y6, Canada
| | - Simon Rousseau
- Research Institute of the McGill University Health Centre, 1001 Boul. Décarie, Montréal, H4A 3J1, Canada. .,Department of Pharmacology and Therapeutics, McGill University, McIntyre Medical Sciences Building, 3655 Prom. Sir-William-Osler, Montreal, H3G 1Y6, Canada.
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16
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RedEfish: Generation of the Polycistronic mScarlet: GSG-T2A: Ttpa Zebrafish Line. Antioxidants (Basel) 2021; 10:antiox10060965. [PMID: 34208660 PMCID: PMC8235169 DOI: 10.3390/antiox10060965] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Accepted: 06/10/2021] [Indexed: 11/17/2022] Open
Abstract
The vitamin E regulatory protein, the alpha-tocopherol transfer protein (Ttpa), is necessary for zebrafish embryo development. To evaluate zebrafish embryo Ttpa function, we generated a fluorescent-tagged zebrafish transgenic line using CRISPR-Cas9 technology. One-cell stage embryos (from Casper (colorless) zebrafish adults) were injected the mScarlet coding sequence in combination with cas9 protein complexed to single guide RNA molecule targeting 5′ of the ttpa genomic region. Embryos were genotyped for proper insertion of the mScarlet coding sequence, raised to adulthood and successively in-crossed to produce the homozygote RedEfish (mScarlet: GSG-T2A: Ttpa). RedEfish were characterized by in vivo fluorescence detection at 1, 7 and 14 days post-fertilization (dpf). Fluorescent color was detectable in RedEfish embryos at 1 dpf; it was distributed throughout the developing brain, posterior tailbud and yolk sac. At 7 dpf, the RedEfish was identifiable by fluorescence in olfactory pits, gill arches, pectoral fins, posterior tail region and residual yolk sac. Subsequently (14 dpf), the mScarlet protein was found in olfactory pits, distributed throughout the digestive tract, along the lateral line and especially in caudal vertebrae. No adverse morphological outcomes or developmental delays were observed. The RedEfish will be a powerful model to study Ttpa function during embryo development.
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17
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Schwartz AV, Sant KE, Navarrete J, George UZ. Mathematical modeling of the interaction between yolk utilization and fish growth in zebrafish, Danio rerio. Development 2021; 148:261800. [PMID: 33960383 DOI: 10.1242/dev.193508] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Accepted: 03/29/2021] [Indexed: 12/12/2022]
Abstract
Optimal embryonic development plays a major role in the health of an individual beyond the developmental stage. Nutritional perturbation during development is associated with cardiovascular and metabolic disease later in life. With both nutritional uptake and overall growth being risk factors for eventual health, it is necessary to understand not only the behavior of the processes during development but also their interactions. In this study, we used differential equations, image analyses, curve fittings, parameter estimation and laboratory experiments to quantify the rate of yolk absorption and its effect on early development of a vertebrate model (Danio rerio). Findings from this study establish a nonlinear functional relationship between nutrient absorption and early fish growth. We found that the rate of change in fish length and yolk utilization is logistic, that is the yolk decays rapidly for a period of time before leveling out. An interesting finding from this study is that yolk utilization reaches its maximum at 84 h post-fertilization. We validated our mathematical models against experimental observations, making them powerful tools for replication and future simulations.
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Affiliation(s)
- Ashley V Schwartz
- Department of Mathematics and Statistics, San Diego State University, 5500 Campanile Drive, San Diego, CA 92182, USA
| | - Karilyn E Sant
- School of Public Health, San Diego State University, 5500 Campanile Drive, San Diego, CA 92182, USA
| | - Julian Navarrete
- School of Public Health, San Diego State University, 5500 Campanile Drive, San Diego, CA 92182, USA
| | - Uduak Z George
- Department of Mathematics and Statistics, San Diego State University, 5500 Campanile Drive, San Diego, CA 92182, USA
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18
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Riddle MR, Hu CK. Fish models for investigating nutritional regulation of embryonic development. Dev Biol 2021; 476:101-111. [PMID: 33831748 DOI: 10.1016/j.ydbio.2021.03.012] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Revised: 03/16/2021] [Accepted: 03/17/2021] [Indexed: 01/13/2023]
Abstract
In recent decades, biologist have focused on the spatiotemporal regulation and function of genes to understand embryogenesis. It is clear that maternal diet impacts fetal development but how nutrients, like lipids and vitamins, modify developmental programs is not completely understood. Fish are useful research organisms for such investigations. Most species of fish produce eggs that develop outside the mother, dependent on a finite amount of yolk to form and grow. The developing embryo is a closed system that can be readily biochemically analyzed, easily visualized, and manipulated to understand the role of nutrients in tissue specification, organogenesis, and growth. Natural variation in yolk composition observed across fish species may be related to unique developmental strategies. In this review, we discuss the reasons that teleost fishes are powerful models to understand nutritional control of development and highlight three species that are particularly valuable for future investigations: the zebrafish, Danio rerio, the African Killifish, Nothobranchius furzeri, and the Mexican tetra, Astyanax mexicanus. This review is a part of a special issue on nutritional, hormonal, and metabolic drivers of development.
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Affiliation(s)
- Misty R Riddle
- Department of Biology, University of Nevada, Reno, Reno, NV, USA.
| | - Chi-Kuo Hu
- Department of Biochemistry and Cell Biology, Stony Brook University, Stony Brook, NY, USA
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19
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Halbach K, Holbrook T, Reemtsma T, Wagner S. Effective processing and evaluation of chemical imaging data with respect to morphological features of the zebrafish embryo. Anal Bioanal Chem 2021; 413:1675-1687. [PMID: 33523257 PMCID: PMC7921040 DOI: 10.1007/s00216-020-03131-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2020] [Revised: 12/01/2020] [Accepted: 12/15/2020] [Indexed: 01/16/2023]
Abstract
A workflow was developed and implemented in a software tool for the automated combination of spatially resolved laser ablation-inductively coupled plasma-mass spectrometry (LA-ICP-MS) data and data on the morphology of the biological tissue. Making use of a recently published biological annotation software, FishImager automatically assigns the biological feature as regions of interest (ROIs) and overlays them with the quantitative LA-ICP-MS data. Furthermore, statistical tools including cluster algorithms can be applied to the elemental intensity data and directly compared with the ROIs. This is effectively visualized in heatmaps. This allows gaining statistical significance on distribution and co-localization patterns. Finally, the biological functions of the assigned ROIs can then be easily linked with elemental distributions. We demonstrate the versatility of FishImager with quantitative LA-ICP-MS data of the zebrafish embryo tissue. The distribution of natural elements and xenobiotics is analyzed and discussed. With the help of FishImager, it was possible to identify compartments affected by toxicity effects or biological mechanisms to eliminate the xenobiotic. The presented workflow can be used for clinical and ecotoxicological testing, for example. Ultimately, it is a tool to simplify and reproduce interpretations of imaging LA-ICP-MS data in many applications. ![]()
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Affiliation(s)
- Katharina Halbach
- Department of Analytical Chemistry, Helmholtz Centre for Environmental Research - UFZ, 04318, Leipzig, Germany
| | - Timothy Holbrook
- Department of Analytical Chemistry, Helmholtz Centre for Environmental Research - UFZ, 04318, Leipzig, Germany
| | - Thorsten Reemtsma
- Department of Analytical Chemistry, Helmholtz Centre for Environmental Research - UFZ, 04318, Leipzig, Germany.,Institute of Analytical Chemistry, University of Leipzig, 04103, Leipzig, Germany
| | - Stephan Wagner
- Department of Analytical Chemistry, Helmholtz Centre for Environmental Research - UFZ, 04318, Leipzig, Germany. .,Institute for Water and Energy Management, University of Applied Sciences Hof, 95028, Hof, Germany.
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20
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Clark EM, Link BA. Complementary and divergent functions of zebrafish Tango1 and Ctage5 in tissue development and homeostasis. Mol Biol Cell 2021; 32:391-401. [PMID: 33439675 PMCID: PMC8098853 DOI: 10.1091/mbc.e20-11-0745] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
Coat protein complex II (COPII) factors mediate cargo export from the endoplasmic reticulum (ER), but bulky collagens and lipoproteins are too large for traditional COPII vesicles. Mammalian CTAGE5 and TANGO1 have been well characterized individually as specialized cargo receptors at the ER that function with COPII coats to facilitate trafficking of bulky cargoes. Here, we present a genetic interaction study in zebrafish of deletions in ctage5, tango1, or both to investigate their distinct and complementary potential functions. We found that Ctage5 and Tango1 have different roles related to organogenesis, collagen versus lipoprotein trafficking, stress-pathway activation, and survival. While disruption of both ctage5 and tango1 compounded phenotype severity, mutation of either factor alone revealed novel tissue-specific defects in the building of heart, muscle, lens, and intestine, in addition to previously described roles in the development of neural and cartilage tissues. Together, our results demonstrate that Ctage5 and Tango1 have overlapping functions, but also suggest divergent roles in tissue development and homeostasis.
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Affiliation(s)
- Eric M Clark
- Department of Cell Biology, Neurobiology and Anatomy, Medical College of Wisconsin, Milwaukee, WI 53226
| | - Brian A Link
- Department of Cell Biology, Neurobiology and Anatomy, Medical College of Wisconsin, Milwaukee, WI 53226
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21
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Halbach K, Ulrich N, Goss KU, Seiwert B, Wagner S, Scholz S, Luckenbach T, Bauer C, Schweiger N, Reemtsma T. Yolk Sac of Zebrafish Embryos as Backpack for Chemicals? ENVIRONMENTAL SCIENCE & TECHNOLOGY 2020; 54:10159-10169. [PMID: 32639148 DOI: 10.1021/acs.est.0c02068] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The zebrafish embryo (Danio rerio) has developed into one of the most important nonsentient animal models for the hazard assessments of chemicals, but the processes governing its toxicokinetics (TK) are poorly understood. This study compares the uptake of seven test compounds into the embryonic body and the yolk sac of the zebrafish embryo using TK experiments, a dialysis approach, thermodynamic calculations, and kinetic modeling. Experimental data show that between 95% (4-iodophenol) and 67% (carbamazepine) of the total internal amount in 26 h post fertilization (hpf) embryos and between 80 and 49% in 74 hpf embryos were found in the yolk. Thus, internal concentrations determined for the whole embryo overestimate the internal concentration in the embryonic body: for the compounds of this study, up to a factor of 5. Partition coefficients for the embryonic body and a one-compartment model with diffusive exchange were calculated for the neutral test compounds and agreed reasonably with the experimental data. For prevalently ionic test compounds at exposure pH (bromoxynil, paroxetine), however, the extent and the speed of uptake were low and could not be modeled adequately. A better understanding of the TK of ionizable test compounds is essential to allow assessment of the validity of this organismic test system for ionic test compounds.
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Affiliation(s)
- Katharina Halbach
- Department of Analytical Chemistry, Helmholtz Centre for Environmental Research-UFZ, 04318 Leipzig, Germany
| | - Nadin Ulrich
- Department of Environmental Analytical Chemistry, Helmholtz Centre for Environmental Research-UFZ, 04318 Leipzig, Germany
| | - Kai-Uwe Goss
- Department of Environmental Analytical Chemistry, Helmholtz Centre for Environmental Research-UFZ, 04318 Leipzig, Germany
- Institute of Chemistry, University of Halle-Wittenberg, 06120 Halle, Germany
| | - Bettina Seiwert
- Department of Analytical Chemistry, Helmholtz Centre for Environmental Research-UFZ, 04318 Leipzig, Germany
| | - Stephan Wagner
- Department of Analytical Chemistry, Helmholtz Centre for Environmental Research-UFZ, 04318 Leipzig, Germany
| | - Stefan Scholz
- Department of Bioanalytical Ecotoxicology, Helmholtz Centre for Environmental Research-UFZ, 04318 Leipzig, Germany
| | - Till Luckenbach
- Department of Bioanalytical Ecotoxicology, Helmholtz Centre for Environmental Research-UFZ, 04318 Leipzig, Germany
| | - Coretta Bauer
- Department of Analytical Chemistry, Helmholtz Centre for Environmental Research-UFZ, 04318 Leipzig, Germany
| | - Nicole Schweiger
- Department of Bioanalytical Ecotoxicology, Helmholtz Centre for Environmental Research-UFZ, 04318 Leipzig, Germany
| | - Thorsten Reemtsma
- Department of Analytical Chemistry, Helmholtz Centre for Environmental Research-UFZ, 04318 Leipzig, Germany
- Institute of Analytical Chemistry, University of Leipzig, 04103 Leipzig, Germany
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22
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Wilson MH, Rajan S, Danoff A, White RJ, Hensley MR, Quinlivan VH, Recacha R, Thierer JH, Tan FJ, Busch-Nentwich EM, Ruddock L, Hussain MM, Farber SA. A point mutation decouples the lipid transfer activities of microsomal triglyceride transfer protein. PLoS Genet 2020; 16:e1008941. [PMID: 32760060 PMCID: PMC7444587 DOI: 10.1371/journal.pgen.1008941] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2020] [Revised: 08/18/2020] [Accepted: 06/17/2020] [Indexed: 01/08/2023] Open
Abstract
Apolipoprotein B-containing lipoproteins (B-lps) are essential for the transport of hydrophobic dietary and endogenous lipids through the circulation in vertebrates. Zebrafish embryos produce large numbers of B-lps in the yolk syncytial layer (YSL) to move lipids from yolk to growing tissues. Disruptions in B-lp production perturb yolk morphology, readily allowing for visual identification of mutants with altered B-lp metabolism. Here we report the discovery of a missense mutation in microsomal triglyceride transfer protein (Mtp), a protein that is essential for B-lp production. This mutation of a conserved glycine residue to valine (zebrafish G863V, human G865V) reduces B-lp production and results in yolk opacity due to aberrant accumulation of cytoplasmic lipid droplets in the YSL. However, this phenotype is milder than that of the previously reported L475P stalactite (stl) mutation. MTP transfers lipids, including triglycerides and phospholipids, to apolipoprotein B in the ER for B-lp assembly. In vitro lipid transfer assays reveal that while both MTP mutations eliminate triglyceride transfer activity, the G863V mutant protein unexpectedly retains ~80% of phospholipid transfer activity. This residual phospholipid transfer activity of the G863V mttp mutant protein is sufficient to support the secretion of small B-lps, which prevents intestinal fat malabsorption and growth defects observed in the mttpstl/stl mutant zebrafish. Modeling based on the recent crystal structure of the heterodimeric human MTP complex suggests the G865V mutation may block triglyceride entry into the lipid-binding cavity. Together, these data argue that selective inhibition of MTP triglyceride transfer activity may be a feasible therapeutic approach to treat dyslipidemia and provide structural insight for drug design. These data also highlight the power of yolk transport studies to identify proteins critical for B-lp biology.
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Affiliation(s)
- Meredith H. Wilson
- Department of Embryology, Carnegie Institution for Science, Baltimore, Maryland, United States of America
| | - Sujith Rajan
- New York University Long Island School of Medicine, Mineola, New York, United States of America
| | - Aidan Danoff
- Department of Embryology, Carnegie Institution for Science, Baltimore, Maryland, United States of America
- Department of Biology, Johns Hopkins University, Baltimore, Maryland, United States of America
| | - Richard J. White
- Wellcome Sanger Institute, Wellcome Genome Campus, Hinxton, Cambridge, United Kingdom
- Cambridge Institute of Therapeutic Immunology & Infectious Disease, Department of Medicine, University of Cambridge, Cambridge, United Kingdom
| | - Monica R. Hensley
- Department of Embryology, Carnegie Institution for Science, Baltimore, Maryland, United States of America
| | - Vanessa H. Quinlivan
- Department of Embryology, Carnegie Institution for Science, Baltimore, Maryland, United States of America
| | - Rosario Recacha
- Faculty of Biochemistry and Molecular Medicine, University of Oulu, Oulu, Finland
| | - James H. Thierer
- Department of Embryology, Carnegie Institution for Science, Baltimore, Maryland, United States of America
- Department of Biology, Johns Hopkins University, Baltimore, Maryland, United States of America
| | - Frederick J. Tan
- Department of Embryology, Carnegie Institution for Science, Baltimore, Maryland, United States of America
| | - Elisabeth M. Busch-Nentwich
- Wellcome Sanger Institute, Wellcome Genome Campus, Hinxton, Cambridge, United Kingdom
- Cambridge Institute of Therapeutic Immunology & Infectious Disease, Department of Medicine, University of Cambridge, Cambridge, United Kingdom
| | - Lloyd Ruddock
- Faculty of Biochemistry and Molecular Medicine, University of Oulu, Oulu, Finland
| | - M. Mahmood Hussain
- New York University Long Island School of Medicine, Mineola, New York, United States of America
| | - Steven A. Farber
- Department of Embryology, Carnegie Institution for Science, Baltimore, Maryland, United States of America
- Department of Biology, Johns Hopkins University, Baltimore, Maryland, United States of America
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23
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Wnt-controlled sphingolipids modulate Anthrax Toxin Receptor palmitoylation to regulate oriented mitosis in zebrafish. Nat Commun 2020; 11:3317. [PMID: 32620775 PMCID: PMC7335183 DOI: 10.1038/s41467-020-17196-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2019] [Accepted: 06/17/2020] [Indexed: 11/24/2022] Open
Abstract
Oriented cell division is a fundamental mechanism to control asymmetric stem cell division, neural tube elongation and body axis extension, among other processes. During zebrafish gastrulation, when the body axis extends, dorsal epiblast cells display divisions that are robustly oriented along the animal-vegetal embryonic axis. Here, we use a combination of lipidomics, metabolic tracer analysis and quantitative image analysis to show that sphingolipids mediate spindle positioning during oriented division of epiblast cells. We identify the Wnt signaling as a regulator of sphingolipid synthesis that mediates the activity of serine palmitoyltransferase (SPT), the first and rate-limiting enzyme in sphingolipid production. Sphingolipids determine the palmitoylation state of the Anthrax receptor, which then positions the mitotic spindle of dividing epiblast cells. Our data show how Wnt signaling mediates sphingolipid-dependent oriented division and how sphingolipids determine Anthrax receptor palmitoylation, which ultimately controls the activation of Diaphanous to mediate spindle rotation and oriented mitosis. During development, oriented cell division is important to proper body axis extension. Here, the authors show that sphingolipids are required to direct spindle rotation and oriented mitosis via Anthrax receptor palmitoylation in zebrafish gastrulation.
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24
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Anderson RA, Schwalbach KT, Mui SR, LeClair EE, Topczewska JM, Topczewski J. Zebrafish models of skeletal dysplasia induced by cholesterol biosynthesis deficiency. Dis Model Mech 2020; 13:dmm042549. [PMID: 32430393 PMCID: PMC7328163 DOI: 10.1242/dmm.042549] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2019] [Accepted: 04/27/2020] [Indexed: 12/23/2022] Open
Abstract
Human disorders of the post-squalene cholesterol biosynthesis pathway frequently result in skeletal abnormalities, yet our understanding of the mechanisms involved is limited. In a forward-genetic approach, we have found that a late-onset skeletal mutant, named kolibernu7 , is the result of a cis-acting regulatory mutation leading to loss of methylsterol monooxygenase 1 (msmo1) expression within pre-hypertrophic chondrocytes. Generated msmo1nu81 knockdown mutation resulted in lethality at larval stage. We demonstrated that this is a result of both cholesterol deprivation and sterol intermediate accumulation by creating a mutation eliminating activity of Lanosterol synthase (Lss). Our results indicate that double lssnu60;msmo1nu81 and single lssnu60 mutants survive significantly longer than msmo1nu81 homozygotes. Liver-specific restoration of either Msmo1 or Lss in corresponding mutant backgrounds suppresses larval lethality. Rescued mutants develop dramatic skeletal abnormalities, with a loss of Msmo1 activity resulting in a more-severe patterning defect of a near-complete loss of hypertrophic chondrocytes marked by col10a1a expression. Our analysis suggests that hypertrophic chondrocytes depend on endogenous cholesterol synthesis, and blocking C4 demethylation exacerbates the cholesterol deficiency phenotype. Our findings offer new insight into the genetic control of bone development and provide new zebrafish models for human disorders of the cholesterol biosynthesis pathway.
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Affiliation(s)
- Rebecca A Anderson
- Department of Pediatrics, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Kevin T Schwalbach
- Developmental Biology Program, Stanley Manne Children's Research Institute, Ann and Robert H. Lurie Children's Hospital of Chicago, Chicago, IL 60611, USA
| | - Stephanie R Mui
- Developmental Biology Program, Stanley Manne Children's Research Institute, Ann and Robert H. Lurie Children's Hospital of Chicago, Chicago, IL 60611, USA
| | - Elizabeth E LeClair
- Department of Biological Sciences, DePaul University, Chicago, IL 60614, USA
| | - Jolanta M Topczewska
- Developmental Biology Program, Stanley Manne Children's Research Institute, Ann and Robert H. Lurie Children's Hospital of Chicago, Chicago, IL 60611, USA
| | - Jacek Topczewski
- Department of Pediatrics, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
- Developmental Biology Program, Stanley Manne Children's Research Institute, Ann and Robert H. Lurie Children's Hospital of Chicago, Chicago, IL 60611, USA
- Department of Biochemistry and Molecular Biology, Medical University of Lublin, Lublin 20-093, Poland
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Valanciunaite J, Kempf E, Seki H, Danylchuk DI, Peyriéras N, Niko Y, Klymchenko AS. Polarity Mapping of Cells and Embryos by Improved Fluorescent Solvatochromic Pyrene Probe. Anal Chem 2020; 92:6512-6520. [DOI: 10.1021/acs.analchem.0c00023] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Jurga Valanciunaite
- Laboratoire de Bioimagerie et Pathologies, UMR 7021 CNRS, Université de Strasbourg, 74 route du Rhin, 67401, Illkirch, France
| | - Emilie Kempf
- Laboratoire de Bioimagerie et Pathologies, UMR 7021 CNRS, Université de Strasbourg, 74 route du Rhin, 67401, Illkirch, France
| | - Hitomi Seki
- Research and Education Faculty, Multidisciplinary Science Cluster, Interdisciplinary Science Unit, Kochi University, 2-5-1, Akebono-cho, Kochi-shi, Kochi, 780-8520, Japan
| | - Dmytro I. Danylchuk
- Laboratoire de Bioimagerie et Pathologies, UMR 7021 CNRS, Université de Strasbourg, 74 route du Rhin, 67401, Illkirch, France
| | - Nadine Peyriéras
- CNRS USR3695 BioEmergences, Avenue de la Terrasse, 91190 Gif-sur-Yvette, France
| | - Yosuke Niko
- Research and Education Faculty, Multidisciplinary Science Cluster, Interdisciplinary Science Unit, Kochi University, 2-5-1, Akebono-cho, Kochi-shi, Kochi, 780-8520, Japan
| | - Andrey S. Klymchenko
- Laboratoire de Bioimagerie et Pathologies, UMR 7021 CNRS, Université de Strasbourg, 74 route du Rhin, 67401, Illkirch, France
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Qiu Y, Sun S, Yu X, Zhou J, Cai W, Qian L. Carboxyl ester lipase is highly conserved in utilizing maternal supplied lipids during early development of zebrafish and human. Biochim Biophys Acta Mol Cell Biol Lipids 2020; 1865:158663. [PMID: 32061751 DOI: 10.1016/j.bbalip.2020.158663] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2019] [Revised: 01/13/2020] [Accepted: 02/10/2020] [Indexed: 01/05/2023]
Abstract
Carboxyl ester lipase (Cel), is a lipolytic enzyme secreted by the pancreas, which hydrolyzes various species of lipids in the gut. Cel is also secreted by mammary gland during lactation and exists in breast milk. It facilitates dietary fat digestion and absorption, thus contributing to normal infant development. This study aimed to examine whether the Cel in zebrafish embryos has a similar role of maternal lipid utilization as in human infants, and how Cel contributes to the utilization of yolk lipids in zebrafish. The cel1 and cel2 genes were expressed ubiquitously in the blastodisc and yolk syncytial layer before 24 hpf, and in the exocrine pancreas after 72 hpf. The cel1 and cel2 morphants exhibited developmental retardation and yolk sac retention. The total cholesterol, cholesterol ester, free cholesterol, and triglyceride were reduced in the morphants' body while accumulated in the yolk (except triglyceride). The FFA content of whole embryos was much lower in morphants than in standard controls. Moreover, the delayed development in cel (cel1/cel2) double morphants was partially rescued by FFA and cholesterol supplementation. Delayed and weakened cholesterol ester transport to the brain and eyes was observed in cel morphants. Correspondingly, shrunken midbrain tectum, microphthalmia, pigmentation-delayed eyes as well as down-regulated Shh target genes were observed in the CNS of double morphants. Interestingly, cholesterol injections reversed these CNS alterations. Our findings suggested that cel genes participate in the lipid releasing from yolk sac to developing body, thereby contributing to the normal growth rate and CNS development in zebrafish.
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Affiliation(s)
- Yaqi Qiu
- Xinhua Hospital, Shanghai Institute for Pediatric Research, School of Medicine, Shanghai Jiao Tong University, 1665 Kongjiang Road, Shanghai 200092, China
| | - Shuna Sun
- Cardiovascular Center, Children's Hospital of Fudan University, 399 Wanyuan Road, Shanghai 201102, China
| | - Xianxian Yu
- Xinhua Hospital, Shanghai Institute for Pediatric Research, School of Medicine, Shanghai Jiao Tong University, 1665 Kongjiang Road, Shanghai 200092, China
| | - Jiefei Zhou
- Xinhua Hospital, Shanghai Institute for Pediatric Research, School of Medicine, Shanghai Jiao Tong University, 1665 Kongjiang Road, Shanghai 200092, China
| | - Wei Cai
- Xinhua Hospital, Shanghai Institute for Pediatric Research, School of Medicine, Shanghai Jiao Tong University, 1665 Kongjiang Road, Shanghai 200092, China.
| | - Linxi Qian
- Xinhua Hospital, Shanghai Institute for Pediatric Research, School of Medicine, Shanghai Jiao Tong University, 1665 Kongjiang Road, Shanghai 200092, China.
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27
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Guo W, Han J, Wu S, Shi X, Wang Q, Zhou B. Bis(2-ethylhexyl)-2,3,4,5-tetrabromophthalate Affects Lipid Metabolism in Zebrafish Larvae via DNA Methylation Modification. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2020; 54:355-363. [PMID: 31804803 DOI: 10.1021/acs.est.9b05796] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
Bis(2-ethylhexyl)-2,3,4,5-tetrabromophthalate (TBPH) is a ubiquitous environmental contaminant, but its toxicity is not fully understood. Accordingly, we investigated the effects of TBPH and its metabolite, mono-(2-ethyhexyl)tetrabromophthalate (TBMEHP), on lipid metabolism using a zebrafish model. The molecular docking study revealed that TBPH and TBMEHP bind to zebrafish peroxisome proliferator-activated receptor γ (PPARγ), with binding energies similar to rosiglitazone, a PPARγ agonist. Zebrafish embryos 0.75 hpf were exposed to TBPH (0.2-2000 nM) or TBMEHP (0.2-2000 nM) until 72 hpf, and their effects on PPARγ-mediated lipid metabolism were evaluated. Significant regional DNA demethylation of the PPARγ promoter was observed in the larvae at 72 hpf. Demethylation of the PPARγ promoter accompanied by upregulation of tet1 and tet2 transcription caused upregulation of PPARγ transcription and certain downstream genes involved in lipid lipolysis, transport, and metabolism. The triglyceride and total cholesterol concentrations in the larvae were significantly reduced following exposure to TBPH or TBMEHP. Furthermore, significant increases in the whole ATP content and locomotor activity in the 120 hpf larvae were observed. The overall results suggest that both TBPH and TBMEHP affect methylation of the PPARγ promoter, subsequently influencing larvae lipid metabolism via the PPARγ signaling pathway and disrupting energy homeostasis.
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Affiliation(s)
- Wei Guo
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jian Han
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China
| | - Shengmin Wu
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China
- Nanjing Institute of Environmental Sciences, Ministry of Ecology and Environment, Nanjing 210042, China
| | - Xiongjie Shi
- College of Life Sciences, the Institute for Advanced Studies, Wuhan University, Wuhan 430072, China
| | - Qiangwei Wang
- Ministry of Agriculture Key Laboratory of Molecular Biology of Crop Pathogens and Insects, Institute of Pesticide and Environmental Toxicology, Zhejiang University, Hangzhou 310058, China
| | - Bingsheng Zhou
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China
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Zhao X, Chen J, Zhang W, Yang C, Ma X, Zhang S, Zhang X. Lipid Alterations during Zebrafish Embryogenesis Revealed by Dynamic Mass Spectrometry Profiling with C=C Specificity. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2019; 30:2646-2654. [PMID: 31628596 DOI: 10.1007/s13361-019-02334-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/01/2019] [Revised: 08/24/2019] [Accepted: 08/24/2019] [Indexed: 06/10/2023]
Abstract
Lipids exert substantial influences on vertebrate embryogenesis, but their metabolic dynamics at detailed structural levels remains elusive, primarily owing to the lack of a tool capable of resolving their huge structural diversity. Herein, we present the first large-scale and spatiotemporal monitoring of unsaturated lipids with C=C specificity in single developing zebrafish embryos enabled by photochemical derivatization and tandem mass spectrometry (MS). The lipid isomer composition was found extremely stable in yolk throughout embryogenesis, while notable differences in ratios of C=C location (e.g., PC 16:0_16:1 (7) vs. 16:0_16:1 (9)) and fatty acyl composition isomers (e.g., PC 16:1_18:1 vs. 16:0_18:2) were unveiled between blastomeres and yolk from zygote to 4 h post fertilization (hpf). From 24 hpf onwards, lipid isomer compositions in embryo head and tail evolved distinctively with development, suggesting a meticulously regulated lipid remodeling essential for cell division and differentiation. This work has laid the foundation for functional studies of structurally defined lipids in vertebrate embryology.
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Affiliation(s)
- Xu Zhao
- Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Jing Chen
- Laboratory of Molecular Developmental Biology, State Key Laboratory of Membrane Biology, Tsinghua-Peking Center for Life Sciences, School of Life Sciences, Tsinghua University, Beijing, 100084, China
| | - Weiying Zhang
- Laboratory of Molecular Developmental Biology, State Key Laboratory of Membrane Biology, Tsinghua-Peking Center for Life Sciences, School of Life Sciences, Tsinghua University, Beijing, 100084, China
| | - Chengdui Yang
- Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Xiaoxiao Ma
- State Key Laboratory of Precision Measurement Technology and Instruments, Department of Precision Instrument, Tsinghua University, Beijing, 100084, China.
| | - Sichun Zhang
- Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Xinrong Zhang
- Department of Chemistry, Tsinghua University, Beijing, 100084, China
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29
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Gupta R, Ranjan S, Yadav A, Verma B, Malhotra K, Madan M, Chopra O, Jain S, Gupta S, Joshi A, Bhasin C, Mudgal P. Toxic Effects of Food Colorants Erythrosine and Tartrazine on Zebrafish Embryo Development. CURRENT RESEARCH IN NUTRITION AND FOOD SCIENCE 2019. [DOI: 10.12944/crnfsj.7.3.26] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Erythrosine and tartrazine are common artificial food additives which have become a part of daily human consumption. Advised daily intake values for these agents are set strictly, however, the actual intake is much higher than the recommended ADI. A higher intake of erythrosine and tartrazine is shown to exhibit adverse effects in mammalian models, and is thus a matter of public health concern. In this study we have assessed and compared the dose-dependent effects of erythrosine and tartrazine on inducing oxidative stress in zebrafish embryos. We performed the superoxide dismutase (SOD) enzyme activity assay to test the effect of the two food colorants on reactive oxygen species (ROS) production. Erythrosine and tartrazine treated embryos showed significantly increased SOD activity in an enzyme assay. Additionally SOD mRNA transcripts in the treated embryos were found to be upregulated. Erythrosine and tartrazine treatment specifically altered SOD1 mRNA transcript levels while it had no effect on SOD2 mRNA, the other isoform found in zebrafish. Our study shows that erythrosine at a concentration of 0.05% is embryotoxic in a dose and time dependent manner. Tartrazine treated embryos exhibit similar toxicity at a concentration of 0.5%. Erythrosine treated zebrafish embryos hatch much slower when compared to tartrazine treated embryos and control embryos. While erythrosine affects the yolk utilization, tartrazine exhibits teratogenic effects on early zebrafish embryos. The mRNA expression as well as biochemical analysis indicates that exposure to food colorants induces cytoplasmic SOD transcription to combat the ROS toxicity in zebrafish embryos.
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Affiliation(s)
- Radhika Gupta
- Department of Biochemistry, Daulat Ram College, University of Delhi, Delhi-110007
| | | | - Aanchal Yadav
- Department of Biochemistry, Daulat Ram College, University of Delhi, Delhi-110007
| | - Bhawana Verma
- Department of Biochemistry, Daulat Ram College, University of Delhi, Delhi-110007
| | - Kangana Malhotra
- Department of Biochemistry, Daulat Ram College, University of Delhi, Delhi-110007
| | - Mahima Madan
- Department of Biochemistry, Daulat Ram College, University of Delhi, Delhi-110007
| | - Ojasvi Chopra
- Department of Biochemistry, Daulat Ram College, University of Delhi, Delhi-110007
| | - Shefali Jain
- Department of Biochemistry, Daulat Ram College, University of Delhi, Delhi-110007
| | - Sonali Gupta
- Department of Biochemistry, Daulat Ram College, University of Delhi, Delhi-110007
| | | | - Chitra Bhasin
- Department of Zoology, Daulat Ram College, University of Delhi, Delhi-110007
| | - Padmshree Mudgal
- Department of Biochemistry, Daulat Ram College, University of Delhi, Delhi-110007
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30
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Dóró É, Jacobs SH, Hammond FR, Schipper H, Pieters RP, Carrington M, Wiegertjes GF, Forlenza M. Visualizing trypanosomes in a vertebrate host reveals novel swimming behaviours, adaptations and attachment mechanisms. eLife 2019; 8:48388. [PMID: 31547905 PMCID: PMC6759355 DOI: 10.7554/elife.48388] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2019] [Accepted: 08/14/2019] [Indexed: 01/08/2023] Open
Abstract
Trypanosomes are important disease agents of humans, livestock and cold-blooded species, including fish. The cellular morphology of trypanosomes is central to their motility, adaptation to the host’s environments and pathogenesis. However, visualizing the behaviour of trypanosomes resident in a live vertebrate host has remained unexplored. In this study, we describe an infection model of zebrafish (Danio rerio) with Trypanosoma carassii. By combining high spatio-temporal resolution microscopy with the transparency of live zebrafish, we describe in detail the swimming behaviour of trypanosomes in blood and tissues of a vertebrate host. Besides the conventional tumbling and directional swimming, T. carassii can change direction through a ‘whip-like’ motion or by swimming backward. Further, the posterior end can act as an anchoring site in vivo. To our knowledge, this is the first report of a vertebrate infection model that allows detailed imaging of trypanosome swimming behaviour in vivo in a natural host environment. Trypanosomes are one-celled parasites that cause the disease trypanosomiasis, which is also known as sleeping sickness. Trypanosomiasis is transmitted to humans and animals by a type of fly, known as tse-tse, which is commonly found in sub-Saharan Africa. A bite from the tse-tse fly transfers the trypanosome cells into the host’s bloodstream, where they spread from the blood to the internal organs and brain. This leads to a long-term illness, which can sometimes result in a coma and eventually death. Once in the blood trypanosomes move around using a structure similar to an underwater propeller called the flagellum. How the trypanosomes move and behave in the blood determines how the infection will progress. Until now it has only been possible to observe trypanosomes in plastic dishes or in blood drawn from infected patients. However, neither of these settings mimic the conditions of the bloodstream, and it is currently impossible to look inside human hosts to watch how trypanosomes move. To overcome this hurdle, Doro et al. infected zebrafish with Trypanosoma carassii, a close relative of the sub-Saharan trypanosomes that specifically infects fish. Zebrafish are transparent when young, making it possible to observe the parasite in the blood and tissues of live fish using a microscope. Doro et al. noticed that Trypanosoma carassii cells adapt to different environments in the host by using different swimming techniques. For example, in small capillaries trypanosomes were dragged along with the blood flow, whilst in larger vessels, when blood flow was slow or there were fewer red blood cells, trypanosomes actively swam against the current. The parasites were also able to change direction by using their flagella in a ‘whip-like’ motion. Lastly, it was discovered that Trypanosoma carassii could rapidly attach to blood vessel walls using one end of its cell body, even when blood flow was strong. This behaviour may help the parasites escape from the bloodstream into the surrounding tissues, making the infection more dangerous. Studying how trypanosomes infect zebrafish at this high level of detail provides new insights into how these parasites move and behave inside a host. An important question that remains to be answered, is how exactly the trypanosomes leave the bloodstream. A better understanding of the whole infection process may hint at new ways of fighting these deadly infections in future.
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Affiliation(s)
- Éva Dóró
- Department of Animal Sciences, Cell Biology and Immunology Group, Wageningen University & Research, Wageningen, Netherlands
| | - Sem H Jacobs
- Department of Animal Sciences, Cell Biology and Immunology Group, Wageningen University & Research, Wageningen, Netherlands
| | - Ffion R Hammond
- Department of Animal Sciences, Cell Biology and Immunology Group, Wageningen University & Research, Wageningen, Netherlands
| | - Henk Schipper
- Department of Animal Sciences, Experimental Zoology Group, Wageningen University & Research, Wageningen, Netherlands
| | - Remco Pm Pieters
- Department of Animal Sciences, Experimental Zoology Group, Wageningen University & Research, Wageningen, Netherlands
| | - Mark Carrington
- Department of Biochemistry, University of Cambridge, Cambridge, United Kingdom
| | - Geert F Wiegertjes
- Department of Animal Sciences, Cell Biology and Immunology Group, Wageningen University & Research, Wageningen, Netherlands.,Department of Animal Sciences, Aquaculture and Fisheries Group, Wageningen University & Research, Wageningen, Netherlands
| | - Maria Forlenza
- Department of Animal Sciences, Cell Biology and Immunology Group, Wageningen University & Research, Wageningen, Netherlands
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31
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Van Dycke J, Ny A, Conceição-Neto N, Maes J, Hosmillo M, Cuvry A, Goodfellow I, Nogueira TC, Verbeken E, Matthijnssens J, de Witte P, Neyts J, Rocha-Pereira J. A robust human norovirus replication model in zebrafish larvae. PLoS Pathog 2019; 15:e1008009. [PMID: 31536612 PMCID: PMC6752765 DOI: 10.1371/journal.ppat.1008009] [Citation(s) in RCA: 93] [Impact Index Per Article: 18.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2019] [Accepted: 07/29/2019] [Indexed: 01/15/2023] Open
Abstract
Human noroviruses (HuNoVs) are the most common cause of foodborne illness, with a societal cost of $60 billion and 219,000 deaths/year. The lack of robust small animal models has significantly hindered the understanding of norovirus biology and the development of effective therapeutics. Here we report that HuNoV GI and GII replicate to high titers in zebrafish (Danio rerio) larvae; replication peaks at day 2 post infection and is detectable for at least 6 days. The virus (HuNoV GII.4) could be passaged from larva to larva two consecutive times. HuNoV is detected in cells of the hematopoietic lineage and the intestine, supporting the notion of a dual tropism. Antiviral treatment reduces HuNoV replication by >2 log10, showing that this model is suited for antiviral studies. Zebrafish larvae constitute a simple and robust replication model that will largely facilitate studies of HuNoV biology and the development of antiviral strategies.
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Affiliation(s)
- Jana Van Dycke
- KU Leuven–Department of Microbiology, Immunology and Transplantation, Rega Institute, Laboratory of Virology and Chemotherapy, Leuven, Belgium
| | - Annelii Ny
- KU Leuven–Department of Pharmaceutical and Pharmacological Sciences, Laboratory for Molecular Biodiscovery, Leuven, Belgium
| | - Nádia Conceição-Neto
- KU Leuven–Department of Microbiology, Immunology and Transplantation, Rega Institute, Laboratory of Clinical and Epidemiological Virology, Leuven, Belgium
| | - Jan Maes
- KU Leuven–Department of Pharmaceutical and Pharmacological Sciences, Laboratory for Molecular Biodiscovery, Leuven, Belgium
| | - Myra Hosmillo
- University of Cambridge–Department of Pathology, Division of Virology, Addenbrooke's Hospital, Cambridge, United Kingdom
| | - Arno Cuvry
- KU Leuven–Department of Microbiology, Immunology and Transplantation, Rega Institute, Laboratory of Virology and Chemotherapy, Leuven, Belgium
| | - Ian Goodfellow
- University of Cambridge–Department of Pathology, Division of Virology, Addenbrooke's Hospital, Cambridge, United Kingdom
| | - Tatiane C. Nogueira
- KU Leuven–Department of Microbiology, Immunology and Transplantation, Rega Institute, Laboratory of Virology and Chemotherapy, Leuven, Belgium
| | - Erik Verbeken
- KU Leuven–Department of Imaging & Pathology, Translational Cell & Tissue Research, Leuven, Belgium
| | - Jelle Matthijnssens
- KU Leuven–Department of Microbiology, Immunology and Transplantation, Rega Institute, Laboratory of Clinical and Epidemiological Virology, Leuven, Belgium
| | - Peter de Witte
- KU Leuven–Department of Pharmaceutical and Pharmacological Sciences, Laboratory for Molecular Biodiscovery, Leuven, Belgium
| | - Johan Neyts
- KU Leuven–Department of Microbiology, Immunology and Transplantation, Rega Institute, Laboratory of Virology and Chemotherapy, Leuven, Belgium
- Global Virus Network (GVN), Centers of Excellence
| | - Joana Rocha-Pereira
- KU Leuven–Department of Microbiology, Immunology and Transplantation, Rega Institute, Laboratory of Virology and Chemotherapy, Leuven, Belgium
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32
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Thierer JH, Ekker SC, Farber SA. The LipoGlo reporter system for sensitive and specific monitoring of atherogenic lipoproteins. Nat Commun 2019; 10:3426. [PMID: 31366908 PMCID: PMC6668417 DOI: 10.1038/s41467-019-11259-w] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2018] [Accepted: 06/28/2019] [Indexed: 12/18/2022] Open
Abstract
Apolipoprotein-B (ApoB) is the structural component of atherogenic lipoproteins, lipid-rich particles that drive atherosclerosis by accumulating in the vascular wall. As atherosclerotic cardiovascular disease is the leading cause of death worldwide, there is an urgent need to develop new strategies to prevent lipoproteins from causing vascular damage. Here we report the LipoGlo system, which uses a luciferase enzyme (NanoLuc) fused to ApoB to monitor several key determinants of lipoprotein atherogenicity including particle abundance, size, and localization. Using LipoGlo, we comprehensively characterize the lipoprotein profile of individual larval zebrafish and collect images of atherogenic lipoprotein localization in an intact organism. We report multiple extravascular lipoprotein localization patterns, as well as identify Pla2g12b as a potent regulator of lipoprotein size. ApoB-fusion proteins thus represent a sensitive and specific approach to study atherogenic lipoproteins and their genetic and small molecule modifiers. Atherosclerosis results from the accumulation of lipoproteins in the vascular wall. Here, Thierer et al. report the design of a chemiluminescent reporter for atherogenic lipoproteins using fusion of apolipoprotein-B to a luciferase enzyme, and find it bears potential for the identification of regulators of lipoprotein metabolism in vivo.
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Affiliation(s)
- James H Thierer
- Carnegie Institution for Science Department of Embryology, 3520 San Martin Drive, Baltimore, MD, 21218, USA.,Johns Hopkins University Department of Biology, 3400N Charles Street, Baltimore, MD, 21218, USA
| | - Stephen C Ekker
- Department of Biochemistry and Molecular Biology, Mayo Clinic, 200 First Street SW, Rochester, MN, 55905, USA
| | - Steven A Farber
- Carnegie Institution for Science Department of Embryology, 3520 San Martin Drive, Baltimore, MD, 21218, USA. .,Johns Hopkins University Department of Biology, 3400N Charles Street, Baltimore, MD, 21218, USA.
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33
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Dar OI, Sharma S, Singh K, Kaur A. Teratogenicity and accumulation of triclosan in the early life stages of four food fish during the bioassay. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2019; 176:346-354. [PMID: 30954000 DOI: 10.1016/j.ecoenv.2019.03.102] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/24/2018] [Revised: 03/22/2019] [Accepted: 03/25/2019] [Indexed: 06/09/2023]
Abstract
TCS [5-chloro-2-(2,4-dichlorophenoxy)phenol] caused a concentration dependent delay in embryonic development, delay and decline in hatching and reduction in length and weight of hatchlings along with an increase in abnormal/deformed embryos and larvae and percent mortality. These parameters varied in a species specific manner and increased with TCS residue in body. The 96 h LC50 values of TCS for Cyprinus carpio, Ctenopharyngodon idella, Labeo rohita and Cirrhinus mrigala were estimated at 0.315, 0.116, 0.096 and 0.131 mg/L, respectively. Hatching got delayed by 16.33 h for C. carpio (0.47 and 0.50 mg/L TCS) and C. idella (0.20 mg/L TCS) but by 18.07 h for L. rohita (0.15 mg/L TCS) and by 19.33 h for C. mrigala (0.18 mg/L TCS). Spine malformations, oedema (yolk sac and cardiac) and deflated swim bladder were present in 100% larvae of C. carpio, C. idella, L. rohita and C. mrigala at 0.30, 0.08, 0.13 and 0.14 mg/L TCS, respectively. TCS also caused hemorrhage (all but C. idella, only 3.33%), albinism and deformed caudal fin (C. idella), hypopigmentation and rupturing of yolk sac (C. mrigala), gas bubble disease (C. mrigala and L. rohita), fusion of eyes (C. carpio) and degeneration of digestive tract (L. rohita) in 10-40% hatchlings. Exposed hatchlings were very weak and paralyzed, could not swim and remained settled at the bottom of jars. Embryonic development was observed to be an early indicator of the toxicity of TCS as oedema and bubbles in yolk were observed in 40-100% embryos/hatchlings at 0.08 mg/L TCS while 100% mortality was observed between 0.15 and 0.50 mg/L TCS. L. rohita was most sensitive and C. carpio was least sensitive to the stress of TCS. Accumulation of TCS in the hatchlings (1/10 of TCS in water) after 96 h exposure hints that even small quantities of TCS may change species diversity in natural waters.
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Affiliation(s)
- Owias Iqbal Dar
- Department of Zoology, Guru Nanak Dev University, Amritsar, 143005, Punjab, India
| | - Sunil Sharma
- Department of Zoology, Guru Nanak Dev University, Amritsar, 143005, Punjab, India
| | - Kirpal Singh
- Department of Zoology, Guru Nanak Dev University, Amritsar, 143005, Punjab, India
| | - Arvinder Kaur
- Department of Zoology, Guru Nanak Dev University, Amritsar, 143005, Punjab, India.
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Teame T, Zhang Z, Ran C, Zhang H, Yang Y, Ding Q, Xie M, Gao C, Ye Y, Duan M, Zhou Z. The use of zebrafish ( Danio rerio) as biomedical models. Anim Front 2019; 9:68-77. [PMID: 32002264 PMCID: PMC6951987 DOI: 10.1093/af/vfz020] [Citation(s) in RCA: 105] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Affiliation(s)
- Tsegay Teame
- China-Norway Joint Lab on Fish Gut Microbiota, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Zhen Zhang
- China-Norway Joint Lab on Fish Gut Microbiota, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Chao Ran
- Key Laboratory for Feed Biotechnology of the Ministry of Agriculture, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Hongling Zhang
- China-Norway Joint Lab on Fish Gut Microbiota, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Yalin Yang
- Key Laboratory for Feed Biotechnology of the Ministry of Agriculture, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Qianwen Ding
- China-Norway Joint Lab on Fish Gut Microbiota, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Minxu Xie
- China-Norway Joint Lab on Fish Gut Microbiota, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Chenchen Gao
- China-Norway Joint Lab on Fish Gut Microbiota, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Yongan Ye
- Dongzhimen Hospital, affiliated to Beijing university of Chinese Medicine (BUCM), Beijing, China
| | - Ming Duan
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, Hubei, China
| | - Zhigang Zhou
- China-Norway Joint Lab on Fish Gut Microbiota, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing, China
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Kim YI, Nam IK, Lee DK, Bhandari S, Charton L, Kwak S, Lim JY, Hong K, Kim SJ, Lee JN, Kwon SW, So HS, Linka N, Park R, Choe SK. Slc25a17 acts as a peroxisomal coenzyme A transporter and regulates multiorgan development in zebrafish. J Cell Physiol 2019; 235:151-165. [PMID: 31187491 DOI: 10.1002/jcp.28954] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2019] [Revised: 05/23/2019] [Accepted: 05/24/2019] [Indexed: 01/05/2023]
Abstract
Slc25a17 is known as a peroxisomal solute carrier, but the in vivo role of the protein has not been demonstrated. We found that the zebrafish genome contains two slc25a17 genes that function redundantly, but additively. Notably, peroxisome function in slc25a17 knockdown embryos is severely compromised, resulting in an altered lipid composition. Along the defects found in peroxisome-associated phenotypic presentations, we highlighted that development of the swim bladder is also highly dependent on Slc25a17 function. As Slc25a17 showed substrate specificity towards coenzyme A (CoA), injecting CoA, but not NAD+ , rescued the defective swim bladder induced by slc25a17 knockdown. These results indicated that Slc25a17 acts as a CoA transporter, involved in the maintenance of functional peroxisomes that are essential for the development of multiple organs during zebrafish embryogenesis. Given high homology in protein sequences, the role of zebrafish Slc25a17 may also be applicable to the mammalian system.
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Affiliation(s)
- Yong-Il Kim
- Department of Microbiology and Center for Metabolic Function Regulation, Wonkwang University School of Medicine, Iksan, South Korea
| | - In-Koo Nam
- Department of Microbiology and Center for Metabolic Function Regulation, Wonkwang University School of Medicine, Iksan, South Korea.,Department of Biomedical Science and Engineering, Gwangju Institute of Science and Technology, Gwangju, South Korea
| | - Dong-Kyu Lee
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul, South Korea
| | - Sushil Bhandari
- Department of Microbiology and Center for Metabolic Function Regulation, Wonkwang University School of Medicine, Iksan, South Korea
| | - Lennart Charton
- Department of Plant Biochemistry, Heinrich-Heine University Düsseldorf, Düsseldorf, Germany
| | - SeongAe Kwak
- Zoonosis Research Center, Wonkwang University School of Medicine, Iksan, South Korea
| | - Jae-Young Lim
- Department of Microbiology and Center for Metabolic Function Regulation, Wonkwang University School of Medicine, Iksan, South Korea.,Department of Biomedical Science and Engineering, Gwangju Institute of Science and Technology, Gwangju, South Korea
| | - KwangHeum Hong
- Department of Microbiology and Center for Metabolic Function Regulation, Wonkwang University School of Medicine, Iksan, South Korea
| | - Se-Jin Kim
- Department of Biomedical Science and Engineering, Gwangju Institute of Science and Technology, Gwangju, South Korea
| | - Joon No Lee
- Department of Biomedical Science and Engineering, Gwangju Institute of Science and Technology, Gwangju, South Korea
| | - Sung Won Kwon
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul, South Korea
| | - Hong-Seob So
- Department of Microbiology and Center for Metabolic Function Regulation, Wonkwang University School of Medicine, Iksan, South Korea
| | - Nicole Linka
- Department of Plant Biochemistry, Heinrich-Heine University Düsseldorf, Düsseldorf, Germany
| | - Raekil Park
- Department of Biomedical Science and Engineering, Gwangju Institute of Science and Technology, Gwangju, South Korea
| | - Seong-Kyu Choe
- Department of Microbiology and Center for Metabolic Function Regulation, Wonkwang University School of Medicine, Iksan, South Korea.,Wonkwang Medical Institute, Wonkwang University School of Medicine, Iksan, South Korea
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Wang W, Zhang X, Qin J, Wei P, Jia Y, Wang J, Ru S. Long-term bisphenol S exposure induces fat accumulation in liver of adult male zebrafish (Danio rerio) and slows yolk lipid consumption in F1 offspring. CHEMOSPHERE 2019; 221:500-510. [PMID: 30660906 DOI: 10.1016/j.chemosphere.2019.01.020] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2018] [Revised: 12/29/2018] [Accepted: 01/03/2019] [Indexed: 05/27/2023]
Abstract
Bisphenol S (BPS), as a substitute for bisphenol A, was frequently detected in human urine and blood. It has been reported that BPS could disrupt fat metabolism in vivo and vitro although mechanisms remain unclear. Additionally, there is no study that the disruptive effect of BPS on parental fat metabolism indirectly interferes with the lipid metabolism of offspring. Here, after 120-d exposure to 1, 10, 100, and 1000 μg/L BPS, the transcription level of genes involved in lipid metabolism in liver and feeding regulation of brain-gut axis, as well as the hepatic triacylglycerol (TAG) and plasma lipid levels were investigated in both male and female zebrafish. Results showed that in male liver, fatty acid synthesis and degradation were inhibited by reducing transcription levels of srebp1 and pparα, and the synthesis of TAG was significantly increased using fatty acid as a precursor by elevating agpat4 and dgat2 mRNA expression levels. As a consequence, fat accumulation and the increased TAG levels were observed in male liver, and lipid levels were also elevated in male plasma. In female liver, there was no excessive fat accumulation and BPS exposure had a non-monotonic effect on the gene expression of fasn, dagt2, and pparα. Notably, the unexposed offspring showed a large amount of yolk lipid remain at 5 days post fertilization. This study obviously demonstrated that long-term BPS exposure increases the risk of non-alcoholic fatty liver disease in male zebrafish and life-cycle exposure hazard on offspring is noteworthy.
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Affiliation(s)
- Weiwei Wang
- College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China
| | - Xiaona Zhang
- College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China.
| | - Jingyu Qin
- College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China
| | - Penghao Wei
- College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China
| | - Yi Jia
- College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China
| | - Jun Wang
- College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China
| | - Shaoguo Ru
- College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China.
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Sant KE, Timme-Laragy AR. Zebrafish as a Model for Toxicological Perturbation of Yolk and Nutrition in the Early Embryo. Curr Environ Health Rep 2019; 5:125-133. [PMID: 29417450 DOI: 10.1007/s40572-018-0183-2] [Citation(s) in RCA: 92] [Impact Index Per Article: 18.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
PURPOSE OF REVIEW Developmental toxicity assessments often focus on structural outcomes and overlook subtle metabolic differences which occur during the early embryonic period. Deviant embryonic nutrition can result in later-life disease, including diabetes, obesity, and cardiovascular disease. Prior to placenta-mediated nutrient exchange, the human embryo requires maternally supplied nutritional substrates for growth, called yolk. Here, we compare the biology of the human and zebrafish yolk and review examples of toxicant-mediated perturbation of yolk defects, composition, and utilization. RECENT FINDINGS Zebrafish embryos, like human embryos, have a protruding yolk sac that serves as a nutritional cache. Aberrant yolk morphology is a common qualitative finding in fish embryotoxicity studies, but quantitative assessment and characterization provides an opportunity to uncover mechanistic targets of toxicant effects on embryonic nutrition. The zebrafish and the study of its yolk sac is an excellent model for uncovering toxicant disruptions to early embryonic nutrition and has potential to discover mechanistic insights into the developmental origins of health and disease.
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Affiliation(s)
- Karilyn E Sant
- Department of Environmental Health Sciences, School of Public Health and Health Sciences, University of Massachusetts, Goessman 171, 686 N Pleasant St, Amherst, MA, 01003, USA
| | - Alicia R Timme-Laragy
- Department of Environmental Health Sciences, School of Public Health and Health Sciences, University of Massachusetts, Goessman 171, 686 N Pleasant St, Amherst, MA, 01003, USA.
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38
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Michiels EDG, Vergauwen L, Lai FY, Town RM, Covaci A, van Nuijs ALN, Van Cruchten SJ, Knapen D. Advancing the Zebrafish embryo test for endocrine disruptor screening using micro-injection: Ethinyl estradiol as a case study. ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY 2019; 38:533-547. [PMID: 30569562 DOI: 10.1002/etc.4343] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/10/2018] [Revised: 11/25/2018] [Accepted: 12/16/2018] [Indexed: 06/09/2023]
Abstract
Fish (embryo) toxicity test guidelines are mostly based on aquatic exposures. However, in some cases, other exposure routes can be more practical and relevant. Micro-injection into the yolk of fish embryos could offer a particular advantage for administering hydrophobic compounds, such as many endocrine disruptors. Single-dose micro-injection was compared with continuous aquatic exposure in terms of compound accumulation and biological responses. 17α-Ethinyl estradiol (EE2) was used as a model compound. First, the optimal solvent and droplet size were optimized, and needle variation was assessed. Next, biological endpoints were evaluated. The accumulated internal dose of EE2 decreased over time in both exposure scenarios. Estrogen receptor activation was concentration/injected dose dependent, increased daily, and was related to esr2b transcription. Transcription of vitellogenin 1 (vtg1) and brain aromatase (cyp19a1b) was induced in both scenarios, but the cyp19a1b transcription pattern differed between routes. Injection caused an increase in cyp19a1b transcripts from 48 hours post fertilization (hpf) onward, whereas after aquatic exposure the main increase occurred between 96 and 120 hpf. Some malformations only occurred after injection, whereas others were present for both scenarios. We conclude that responses can differ between exposure routes and therefore micro-injection is not a direct substitute for, but can be complementary to aquatic exposure. Nevertheless, vtg1and cyp19a1b transcription and estrogen receptor activation are suitable biomarkers for endocrine disruptor screening in both scenarios. Environ Toxicol Chem 2019;38:533-547. © 2018 SETAC.
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Affiliation(s)
- Ellen D G Michiels
- Zebrafishlab, Veterinary Physiology and Biochemistry, Department of Veterinary Sciences, University of Antwerp, Wilrijk, Belgium
| | - Lucia Vergauwen
- Zebrafishlab, Veterinary Physiology and Biochemistry, Department of Veterinary Sciences, University of Antwerp, Wilrijk, Belgium
- Systemic Physiological and Ecotoxicological Research, Department of Biology, University of Antwerp, Antwerp, Belgium
| | - Foon Yin Lai
- Toxicological Centre, Department of Pharmaceutical Sciences, University of Antwerp, Antwerp, Belgium
| | - Raewyn M Town
- Systemic Physiological and Ecotoxicological Research, Department of Biology, University of Antwerp, Antwerp, Belgium
| | - Adrian Covaci
- Toxicological Centre, Department of Pharmaceutical Sciences, University of Antwerp, Antwerp, Belgium
| | - Alexander L N van Nuijs
- Toxicological Centre, Department of Pharmaceutical Sciences, University of Antwerp, Antwerp, Belgium
| | - Steven J Van Cruchten
- Applied Veterinary Morphology, Department of Veterinary Sciences, University of Antwerp, Wilrijk, Belgium
| | - Dries Knapen
- Zebrafishlab, Veterinary Physiology and Biochemistry, Department of Veterinary Sciences, University of Antwerp, Wilrijk, Belgium
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Verweij FJ, Revenu C, Arras G, Dingli F, Loew D, Pegtel DM, Follain G, Allio G, Goetz JG, Zimmermann P, Herbomel P, Del Bene F, Raposo G, van Niel G. Live Tracking of Inter-organ Communication by Endogenous Exosomes In Vivo. Dev Cell 2019; 48:573-589.e4. [PMID: 30745143 DOI: 10.1016/j.devcel.2019.01.004] [Citation(s) in RCA: 206] [Impact Index Per Article: 41.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2018] [Revised: 12/21/2018] [Accepted: 12/31/2018] [Indexed: 01/05/2023]
Abstract
Extracellular vesicles (EVs) are released by most cell types but providing evidence for their physiological relevance remains challenging due to a lack of appropriate model organisms. Here, we developed an in vivo model to study EV function by expressing CD63-pHluorin in zebrafish embryos. A combination of imaging methods and proteomic analysis allowed us to study biogenesis, composition, transfer, uptake, and fate of individual endogenous EVs. We identified a subpopulation of EVs with exosome features, released in a syntenin-dependent manner from the yolk syncytial layer into the blood circulation. These exosomes are captured, endocytosed, and degraded by patrolling macrophages and endothelial cells in the caudal vein plexus (CVP) in a scavenger receptor- and dynamin-dependent manner. Interference with exosome biogenesis affected CVP growth, suggesting a role in trophic support. Altogether, our work represents a system for studying endogenous EV function in vivo with high spatiotemporal accuracy, demonstrating functional inter-organ communication by exosomes.
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Affiliation(s)
- Frederik J Verweij
- Institut Curie, PSL Research University, CNRS UMR144, Paris 75005, France; Institute for Psychiatry and Neuroscience Paris, Hopital Saint-Anne, Université Descartes, INSERM U894, Paris 75014, France.
| | - Celine Revenu
- Institut Curie, PSL Research University, INSERM U934, CNRS UMR3215, Sorbonne Université, Paris 75005, France
| | - Guillaume Arras
- Institut Curie, PSL Research University, Centre de Recherche, Laboratoire de Spectrométrie de Masse Protéomique, Paris, France
| | - Florent Dingli
- Institut Curie, PSL Research University, Centre de Recherche, Laboratoire de Spectrométrie de Masse Protéomique, Paris, France
| | - Damarys Loew
- Institut Curie, PSL Research University, Centre de Recherche, Laboratoire de Spectrométrie de Masse Protéomique, Paris, France
| | - D Michiel Pegtel
- Department of Pathology, Cancer Center Amsterdam, the Netherlands
| | - Gautier Follain
- INSERM UMR_S1109, Université de Strasbourg, Fédération de Médecine Translationnelle de Strasbourg, Strasbourg, France
| | - Guillaume Allio
- INSERM UMR_S1109, Université de Strasbourg, Fédération de Médecine Translationnelle de Strasbourg, Strasbourg, France
| | - Jacky G Goetz
- INSERM UMR_S1109, Université de Strasbourg, Fédération de Médecine Translationnelle de Strasbourg, Strasbourg, France
| | - Pascale Zimmermann
- Centre de Recherche en Cancérologie de Marseille, Aix-Marseille Université, Marseille 13284, France
| | - Philippe Herbomel
- Institut Pasteur, Department of Developmental & Stem Cell Biology, 25 rue du Dr Roux, Paris 75015, France
| | - Filippo Del Bene
- Institut Curie, PSL Research University, INSERM U934, CNRS UMR3215, Sorbonne Université, Paris 75005, France
| | - Graça Raposo
- Institut Curie, PSL Research University, CNRS UMR144, Paris 75005, France
| | - Guillaume van Niel
- Institut Curie, PSL Research University, CNRS UMR144, Paris 75005, France; Institute for Psychiatry and Neuroscience Paris, Hopital Saint-Anne, Université Descartes, INSERM U894, Paris 75014, France.
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40
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Singh H, Sreedharan S, Tiwari K, Green NH, Smythe C, Pramanik SK, Thomas JA, Das A. Two photon excitable graphene quantum dots for structured illumination microscopy and imaging applications: lysosome specificity and tissue-dependent imaging. Chem Commun (Camb) 2019; 55:521-524. [DOI: 10.1039/c8cc08610a] [Citation(s) in RCA: 54] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Two-photon active graphene quantum dots (GQDs) are obtained from extracts of the neem root.
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Affiliation(s)
- Harwinder Singh
- CSIR-Central Salt and Marine Chemicals Research Institute
- Bhavnagar
- India
- Academy of Scientific & Innovative Research
- CSIR-CSMCRI
| | | | - Karishma Tiwari
- CSIR-Central Salt and Marine Chemicals Research Institute
- Bhavnagar
- India
| | - Nicola H. Green
- Department of Materials Science and Engineering
- Kroto Research Institute
- North Campus
- Broad Lane
- University of Sheffield
| | - Carl Smythe
- Department of Biomedical Science
- University of Sheffield
- Sheffield
- UK
| | | | - Jim A. Thomas
- Department of Chemistry
- University of Sheffield
- Western Bank
- Sheffield
- UK
| | - Amitava Das
- CSIR-Central Salt and Marine Chemicals Research Institute
- Bhavnagar
- India
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Faillaci F, Milosa F, Critelli RM, Turola E, Schepis F, Villa E. Obese zebrafish: A small fish for a major human health condition. Animal Model Exp Med 2018; 1:255-265. [PMID: 30891575 PMCID: PMC6388073 DOI: 10.1002/ame2.12042] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2018] [Revised: 10/11/2018] [Accepted: 10/18/2018] [Indexed: 12/14/2022] Open
Abstract
Obesity is becoming a silent worldwide epidemic, with a steady increase in both adults and children. To date, even though several drugs have been licensed for long-term obesity treatment, none of them are yet used in routine clinical practice. So far the only successful intervention has been behavioral therapy. A suitable and economic experimental model mimicking the human condition would therefore be extremely useful to evaluate preventive measures and novel treatments. Zebrafish are emerging as an important model system to study obesity and related metabolic disease. Remarkable similarities have been reported in lipid metabolism and the adipogenic pathway between zebrafish and mammals. Moreover, the zebrafish possesses a number of features-the relative inexpensiveness of animal husbandry, its optical transparency and the ability to produce a large number of offspring at low cost-that make it ideal for large-scale screening and for testing drugs and intervention. In this review, we summarize recent progress in using zebrafish as a model system to study obesity and obesity-related metabolic disorders. We describe several zebrafish models (in both larvae and adult animals) that develop obesity and non-alcoholic fatty liver disease (NAFLD) using different approaches, including gene manipulation, diet manipulation and modification of microbiota composition. For these models, we have outlined the specific aspects related to obesity and its development and we have summarized their advantages and limitations.
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Affiliation(s)
- Francesca Faillaci
- Department of Internal MedicineGastroenterology UnitUniversity of Modena and Reggio EmiliaModenaItaly
- Women in Hepatology GroupModenaItaly
| | - Fabiola Milosa
- Women in Hepatology GroupModenaItaly
- National Institute of Gastroenterology“S. de Bellis” Research HospitalCastellana GrotteItaly
| | - Rosina Maria Critelli
- Department of Internal MedicineGastroenterology UnitUniversity of Modena and Reggio EmiliaModenaItaly
- Women in Hepatology GroupModenaItaly
| | - Elena Turola
- Department of Internal MedicineEndocrinology UnitAOU of ParmaParmaItaly
| | - Filippo Schepis
- Department of Internal MedicineGastroenterology UnitUniversity of Modena and Reggio EmiliaModenaItaly
| | - Erica Villa
- Department of Internal MedicineGastroenterology UnitUniversity of Modena and Reggio EmiliaModenaItaly
- Women in Hepatology GroupModenaItaly
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Mu X, Liu J, Yang K, Huang Y, Li X, Yang W, Qi S, Tu W, Shen G, Li Y. 0# Diesel water-accommodated fraction induced lipid homeostasis alteration in zebrafish embryos. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2018; 242:952-961. [PMID: 30373040 DOI: 10.1016/j.envpol.2018.07.055] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2018] [Revised: 07/13/2018] [Accepted: 07/13/2018] [Indexed: 06/08/2023]
Abstract
To investigate the developmental effects and corresponding molecular mechanism of diesel in freshwater organisms, zebrafish embryos were exposed to 0# diesel water-accommodated fraction (WAF) at different concentrations. Mortality, embryonic morphological endpoints, transcriptional profile and lipid profile were evaluated after exposure. Exposure to 0# diesel WAF had no significant effect on the survival of zebrafish embryos from 1.5 to 96 hpf. However, a significant increase in mortality was observed at 144 and 196 hpf in the groups of 20 and 40 mg/L 0# diesel WAF. RNA-Seq results demonstrated that 0# diesel WAF could induce significant alterations in transcription profile at concentrations of 0.05 mg/L (the limit for petroleum hydrocarbon concentration in surface water in China) and 5 mg/L. Gene Ontology enrichment and similarity analysis indicated that lipid metabolism, lipid synthesis, biological transport, drug metabolism and homeostatic processes were the most altered biological processes after exposure to 0# diesel WAF. Further, transcription levels of genes involved in cholesterol and fatty acid synthesis were significantly inhibited by diesel WAF according to qPCR results. Lipidomics results also indicated that several lipid species (cholesterol ester, fatty acid, diglyceride and triglyceride) decreased after 0# diesel WAF exposure. These results reflect the potential risk of diesel pollution in freshwater ecosystems especially on the alteration of lipid homeostasis and enable a better understanding of the molecular pathways underlying the action of diesel WAF in zebrafish embryos.
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Affiliation(s)
- Xiyan Mu
- Fishery Resource and Environment Research Center, Chinese Academy of Fishery Sciences, Beijing, People's Republic of China.
| | - Jia Liu
- Fishery Resource and Environment Research Center, Chinese Academy of Fishery Sciences, Beijing, People's Republic of China
| | - Ke Yang
- Fishery Resource and Environment Research Center, Chinese Academy of Fishery Sciences, Beijing, People's Republic of China
| | - Ying Huang
- Fishery Resource and Environment Research Center, Chinese Academy of Fishery Sciences, Beijing, People's Republic of China
| | - Xuxing Li
- Fishery Resource and Environment Research Center, Chinese Academy of Fishery Sciences, Beijing, People's Republic of China
| | - Wenbo Yang
- Fishery Resource and Environment Research Center, Chinese Academy of Fishery Sciences, Beijing, People's Republic of China
| | - Suzhen Qi
- Institute of Apicultural Research, Chinese Academy of Agricultural Sciences, Beijing, People's Republic of China
| | - Wenqing Tu
- Research Institute of Poyang Lake, Jiangxi Academy of Sciences, Nanchang 330012, People's Republic of China
| | - Gongming Shen
- Fishery Resource and Environment Research Center, Chinese Academy of Fishery Sciences, Beijing, People's Republic of China
| | - Yingren Li
- Fishery Resource and Environment Research Center, Chinese Academy of Fishery Sciences, Beijing, People's Republic of China.
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Piccinetti CC, De Leo A, Cosoli G, Scalise L, Randazzo B, Cerri G, Olivotto I. Measurement of the 100 MHz EMF radiation in vivo effects on zebrafish D. rerio embryonic development: A multidisciplinary study. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2018; 154:268-279. [PMID: 29477917 DOI: 10.1016/j.ecoenv.2018.02.053] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2017] [Revised: 02/12/2018] [Accepted: 02/15/2018] [Indexed: 06/08/2023]
Abstract
The augmented exposure of both environment and human being to electromagnetic waves and the concomitant lack of an unequivocal knowledge about biological consequences of these radiations, raised public interest on electromagnetic pollution. In this context, the present study aims to evaluate the biological effects on zebrafish (ZF) embryos of 100 MHz radiofrequency electromagnetic field (RF-EMF) exposure through a multidisciplinary protocol. Because of the shared synteny between human and ZF genomes that validated its use in biomedical research, toxicology and developmental biology studies, ZF was here selected as experimental model and a measurement protocol and biological analyses have been set up to clearly discriminate between RF-EMF biological and thermal effects. The results showed that a 100 MHz EMF was able to affect ZF embryonic development, from 24 to 72 h post fertilization (hpf) in all the analyzed pathways. Particularly, at the 48 hpf stage, a reduced growth, an increased transcription of oxidative stress genes, the onset of apoptotic/autophagic processes and a modification in cholesterol metabolism were detected. ZF embryos faced stress induced by EMF radiation by triggering detoxification mechanisms and at 72 hpf they partially recovered from stress reaching the hatching time in a comparable way respect to the control group. Data here obtained showed unequivocally the in vivo effects of RF-EMF on an animal model, excluding thermal outcomes and thus represents the starting point for more comprehensive studies on dose response effects of electromagnetic fields radiations consequences.
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Affiliation(s)
- Chiara Carla Piccinetti
- Dipartimento di Scienze della Vita e dell'Ambiente, Universita' Politecnica delle Marche, Ancona, Italy
| | - Alfredo De Leo
- Dipartimento di Ingegneria dell'Informazione, Universita' Politecnica delle Marche, Ancona, Italy
| | - Gloria Cosoli
- Dipartimento di Ingegneria Industriale e Scienze Matematiche, Universita' Politecnica delle Marche, Ancona, Italy
| | - Lorenzo Scalise
- Dipartimento di Ingegneria Industriale e Scienze Matematiche, Universita' Politecnica delle Marche, Ancona, Italy
| | - Basilio Randazzo
- Dipartimento di Scienze della Vita e dell'Ambiente, Universita' Politecnica delle Marche, Ancona, Italy
| | - Graziano Cerri
- Dipartimento di Ingegneria dell'Informazione, Universita' Politecnica delle Marche, Ancona, Italy
| | - Ike Olivotto
- Dipartimento di Scienze della Vita e dell'Ambiente, Universita' Politecnica delle Marche, Ancona, Italy.
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44
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Wang W, Zhang X, Wang Z, Qin J, Wang W, Tian H, Ru S. Bisphenol S induces obesogenic effects through deregulating lipid metabolism in zebrafish (Danio rerio) larvae. CHEMOSPHERE 2018; 199:286-296. [PMID: 29448196 DOI: 10.1016/j.chemosphere.2018.01.163] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/23/2017] [Revised: 01/28/2018] [Accepted: 01/29/2018] [Indexed: 05/27/2023]
Abstract
It has been suggested that dramatic increase in obesity may be caused by growing exposure to environmental chemicals. In vitro data has suggested bisphenol S (BPS), a compound widely used in polycarbonate plastic production, can induce lipid accumulation in preadipocytes. However, the mechanisms responsible for BPS-induced obesity in vivo remain unclear. In this study, we used translucent zebrafish (Danio rerio) larvae as a model to investigate the effect of environmentally relevant BPS exposure (1, 10, and 100 μg/L from 2 h to 15 d post fertilization) on lipid accumulation, triacylglycerol (TAG) and lipoproteins content, and mRNA expression of genes involved in the regulation of lipid synthesis, transport, degradation, and storage. We also analyzed activities of two enzymes critical to TAG metabolism: lipoprotein lipase and diglyceride acyltransferase. Overfed, obese larvae were used as positive control. The results indicated that BPS-treated and overfed larvae had much higher TAG levels and visceral fat accumulation compared with control. BPS exhibited obesogenic effects by interfering with lipid metabolism as evidenced by (a) upregulation of the mRNA expression of fasn, acc1, and agpat4 genes encoding enzymes involved in the de novo synthesis of TAG in the liver, (b) downregulation of apolipoprotein expression, which should reduce TAG transport from the liver, and (c) increase in rxrα expression, which should promote visceral fat accumulation. Our study is the first to demonstrate that the obesogenic effects of BPS in zebrafish are related to the disruption of TAG metabolism.
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Affiliation(s)
- Weiwei Wang
- College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China
| | - Xiaona Zhang
- College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China.
| | - Zihao Wang
- College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China
| | - Jingyu Qin
- College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China
| | - Wei Wang
- College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China
| | - Hua Tian
- College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China
| | - Shaoguo Ru
- College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China.
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45
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Lai CY, Lin CY, Hsu CC, Yeh KY, Her GM. Liver-directed microRNA-7a depletion induces nonalcoholic fatty liver disease by stabilizing YY1-mediated lipogenic pathways in zebrafish. Biochim Biophys Acta Mol Cell Biol Lipids 2018; 1863:844-856. [PMID: 29678641 DOI: 10.1016/j.bbalip.2018.04.009] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2017] [Revised: 03/16/2018] [Accepted: 04/15/2018] [Indexed: 01/12/2023]
Abstract
Nonalcoholic fatty liver disease (NAFLD) has been associated with the function and changes in expression levels of microRNAs (miRs). MiR-7 has been proven to play an important role in many cellular processes; however, its functions in the context of liver lipogenesis remain unknown. We applied the microRNA-sponge (miR-SP) technology and generated transgenic miR-7a-SP models (hC7aSP and bC7aSP), which disrupted the activities of hepatic miR-7a and induced the early onset of NAFLD and nonalcoholic steatohepatitis (NASH) in zebrafish. We identified a novel miR-7a target, YY1, and demonstrated novel miR-7a functions to regulate zebrafish hepatic lipid metabolism by controlling YY1 stabilization through the regulation of the expression of lipogenic signaling pathways. Correspondingly, liver specific miR-7a depletion functionally promoted lipid accumulation in hC7ASP livers. NASH hC7aSP increased the expression of inflammatory genes (il-1b, il-6, tnf-α, ifn-γ, nfkb2, and NF-kB) and endoplasmic reticulum stress markers (atf6, ern2, ire1, perk, hspa5 and ddit3). Molecular analysis revealed that miR-7a-SP can stabilize YY1 expression and contribute to the accumulation of hepatic triglycerides by reducing the CHOP-10 expression in the hC7aSP and then inducing the transactivation of C/EBP-α and PPAR-γ expression. PPAR-γ antagonists and miR-7a mimic treatment ameliorate hC7aSP NASH phenotypes. CONCLUSION Our results suggest that miR-7a-SP acts as a lipid enhancer by directly increasing YY1 stability to disrupt CHOP-10-dependent suppression of lipogenic pathways, resulting in increased lipid accumulation. MiR-7a expression improves liver steatosis and steatohepatitis in hC7aSPs, which suggests a novel strategy for the prevention and early treatment of NASH in humans.
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Affiliation(s)
- Chi-Yu Lai
- Department of Bioscience and Biotechnology, National Taiwan Ocean University, 2, Pei Ning Road, Keelung 202, Taiwan
| | - Chiu-Ya Lin
- Department of Bioscience and Biotechnology, National Taiwan Ocean University, 2, Pei Ning Road, Keelung 202, Taiwan
| | - Chia-Chun Hsu
- Department of Radiology, Buddhist Tzu Chi General Hospital, Taichung Branch, No. 66 Fēngxìng Road Section 1, Taichung 427, Taiwan; School of Medicine, Tzu Chi University, No. 701, Sec. 3, Jhongyang Road, Hualien 97004, Taiwan
| | - Kun-Yun Yeh
- Division of Hemato-Oncology, Department of Internal Medicine, Chang Gung Memorial Hospital, 222 Maijin Road, Keelung 204, Taiwan.
| | - Guor Mour Her
- Department of Bioscience and Biotechnology, National Taiwan Ocean University, 2, Pei Ning Road, Keelung 202, Taiwan; Institute of Biopharmaceutical Sciences, National Yang Ming University, TNo. 155, Sec. 2, Linong Street, Taipei 112, Taiwan.
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46
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Tay SS, Kuah MK, Shu-Chien AC. Transcriptional activation of zebrafish fads2 promoter and its transient transgene expression in yolk syncytial layer of zebrafish embryos. Sci Rep 2018; 8:3874. [PMID: 29497119 PMCID: PMC5832746 DOI: 10.1038/s41598-018-22157-4] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2017] [Accepted: 02/16/2018] [Indexed: 12/12/2022] Open
Abstract
The front-end desaturases (Fads) are rate-limiting enzymes responsible for production of long-chain polyunsaturated fatty acids (LC-PUFA). The full spectrum of the transcriptional regulation of fads is still incomplete, as cloning of fads promoter is limited to a few species. Here, we described the cloning and characterisation of the zebrafish fads2 promoter. Using 5'-deletion and mutation analysis on this promoter, we identified a specific region containing the sterol regulatory element (SRE) which is responsible for the activation of the fads2 promoter. In tandem, two conserved CCAAT boxes were also present adjacent to the SRE and mutation of either of these binding sites attenuates the transcriptional activation of the fads2 promoter. An in vivo analysis employing GFP reporter gene in transiently transfected zebrafish embryos showed that this 1754 bp upstream region of the fads2 gene specifically directs GFP expression in the yolk syncytial layer (YSL) region. This indicates a role for LC-PUFA in the transport of yolk lipids through this tissue layer. In conclusion, besides identifying novel core elements for transcriptional activation in zebrafish fads2 promoter, we also reveal a potential role for fads2 or LC-PUFA in YSL during development.
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Affiliation(s)
- Shu-Shen Tay
- School of Biological Sciences, Universiti Sains Malaysia, 11800, Minden, Penang, Malaysia
| | - Meng-Kiat Kuah
- Centre for Chemical Biology, Universiti Sains Malaysia, Sains@USM, Block B No. 10, Persiaran Bukit Jambul, 11900, Bayan Lepas, Penang, Malaysia
| | - Alexander Chong Shu-Chien
- School of Biological Sciences, Universiti Sains Malaysia, 11800, Minden, Penang, Malaysia. .,Centre for Chemical Biology, Universiti Sains Malaysia, Sains@USM, Block B No. 10, Persiaran Bukit Jambul, 11900, Bayan Lepas, Penang, Malaysia.
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47
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Zhang Y, Liu M, Liu J, Wang X, Wang C, Ai W, Chen S, Wang H. Combined toxicity of triclosan, 2,4-dichlorophenol and 2,4,6-trichlorophenol to zebrafish (Danio rerio). ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2018; 57:9-18. [PMID: 29169085 DOI: 10.1016/j.etap.2017.11.006] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/19/2017] [Accepted: 11/14/2017] [Indexed: 05/10/2023]
Abstract
Triclosan (TCS), 2,4,6-trichlorophenol (2,4,6-TCP) and 2,4-dichlorophenol (2,4-DCP) are the most prevalent chlorinated phenolic pollutants in aquatic environments. Our results showed LC50 and EC50 values of 0.51, 1.11, 2.45mg/L, and 0.36, 0.74, 1.53mg/L for TCS, 2,4,6-TCP and 2,4-DCP, respectively, to 120hpf zebrafish. The highest TCSD (the mixture of TCS, 2,4,6-TCP and 2,4-DCP) toxicity was observed at a TCS:2,4,6-TCP:2,4-DCP concentration ratio of 1:2:4. LC50 and EC50 values of TCSD mixtures for 120-hpf zebrafish were 2.28 and 1.16mg/L, respectively. Two toxicity assessment methods (Toxic Unit and Mixture Toxicity Index) indicated that TCSD interactions produced partly additive toxicity. TCSD exposure decreased zebrafish hatching rate and led to a series of malformations. Following alkaline phosphatase staining, a large area of vascular ablation was observed with almost complete disappearance of vascular branches and a smaller coverage range. Prominent reddening of the yolk sac and visceral mass after oil red O staining implied that TCSD exposure severely affected fat metabolism. Following acridine orange staining, cell death occurred in eyes while high TCSD concentrations (0.84mg/L) induced cardiovascular circulation dysfunction. Alcian blue staining increased the α angle between Meckel's cartilages and β angle between two ceratobranchial. Basihyal and palatoquadrate became shorter and developmental abnormality or defects occurred in the fifth ceratobranchial. Overall, these results provide a theoretical basis for systematically evaluating the combined toxicity of the prevalent chlorinated phenolic pollutants in real-world aquatic environments.
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Affiliation(s)
- Yuhuan Zhang
- College of Life Sciences, Wenzhou Medical University, Wenzhou 325035, China
| | - Mi Liu
- College of Life Sciences, Wenzhou Medical University, Wenzhou 325035, China
| | - Jinfeng Liu
- College of Life Sciences, Wenzhou Medical University, Wenzhou 325035, China
| | - Xuedong Wang
- Key Laboratory of Watershed Sciences and Health of Zhejiang Province, Wenzhou Medical University, Wenzhou 325035, China
| | - Caihong Wang
- College of Life Sciences, Wenzhou Medical University, Wenzhou 325035, China
| | - Weiming Ai
- College of Life Sciences, Wenzhou Medical University, Wenzhou 325035, China
| | - Shaobo Chen
- College of Life Sciences, Wenzhou Medical University, Wenzhou 325035, China
| | - Huili Wang
- College of Life Sciences, Wenzhou Medical University, Wenzhou 325035, China.
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48
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Bourassa D, Gleber SC, Vogt S, Shin CH, Fahrni CJ. MicroXRF tomographic visualization of zinc and iron in the zebrafish embryo at the onset of the hatching period. Metallomics 2017; 8:1122-1130. [PMID: 27531414 DOI: 10.1039/c6mt00073h] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Transition metals such as zinc, copper, and iron play key roles in cellular proliferation, cell differentiation, growth, and development. Over the past decade, advances in synchrotron X-ray fluorescence instrumentation presented new opportunities for the three-dimensional mapping of trace metal distributions within intact specimens. Taking advantage of microXRF tomography, we visualized the 3D distribution of zinc and iron in a zebrafish embryo at the onset of the hatching period. The reconstructed volumetric data revealed distinct differences in the elemental distributions, with zinc predominantly localized to the yolk and yolk extension, and iron to various regions of the brain as well as the myotome extending along the dorsal side of the embryo. The data set complements an earlier tomographic study of an embryo at the pharyngula stage (24 hpf), thus offering new insights into the trace metal distribution at key stages of embryonic development.
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Affiliation(s)
- Daisy Bourassa
- School of Chemistry and Biochemistry and Petit Institute for Bioengineering and Bioscience, Georgia Institute of Technology, 901 Atlantic Drive, Atlanta, GA 30332, USA.
| | - Sophie-Charlotte Gleber
- Advanced Photon Source, X-ray Science Division, Argonne National Laboratory, 9700 S. Cass Avenue, Argonne, IL 60439, USA
| | - Stefan Vogt
- Advanced Photon Source, X-ray Science Division, Argonne National Laboratory, 9700 S. Cass Avenue, Argonne, IL 60439, USA
| | - Chong Hyun Shin
- School of Biological Sciences and Petit Institute for Bioengineering and Bioscience, Georgia Institute of Technology, 315 Ferst Drive, Atlanta, GA 30332, USA
| | - Christoph J Fahrni
- School of Chemistry and Biochemistry and Petit Institute for Bioengineering and Bioscience, Georgia Institute of Technology, 901 Atlantic Drive, Atlanta, GA 30332, USA.
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49
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Corre T, Arjona FJ, Hayward C, Youhanna S, de Baaij JHF, Belge H, Nägele N, Debaix H, Blanchard MG, Traglia M, Harris SE, Ulivi S, Rueedi R, Lamparter D, Macé A, Sala C, Lenarduzzi S, Ponte B, Pruijm M, Ackermann D, Ehret G, Baptista D, Polasek O, Rudan I, Hurd TW, Hastie ND, Vitart V, Waeber G, Kutalik Z, Bergmann S, Vargas-Poussou R, Konrad M, Gasparini P, Deary IJ, Starr JM, Toniolo D, Vollenweider P, Hoenderop JGJ, Bindels RJM, Bochud M, Devuyst O. Genome-Wide Meta-Analysis Unravels Interactions between Magnesium Homeostasis and Metabolic Phenotypes. J Am Soc Nephrol 2017; 29:335-348. [PMID: 29093028 DOI: 10.1681/asn.2017030267] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2017] [Accepted: 07/19/2017] [Indexed: 12/15/2022] Open
Abstract
Magnesium (Mg2+) homeostasis is critical for metabolism. However, the genetic determinants of the renal handling of Mg2+, which is crucial for Mg2+ homeostasis, and the potential influence on metabolic traits in the general population are unknown. We obtained plasma and urine parameters from 9099 individuals from seven cohorts, and conducted a genome-wide meta-analysis of Mg2+ homeostasis. We identified two loci associated with urinary magnesium (uMg), rs3824347 (P=4.4×10-13) near TRPM6, which encodes an epithelial Mg2+ channel, and rs35929 (P=2.1×10-11), a variant of ARL15, which encodes a GTP-binding protein. Together, these loci account for 2.3% of the variation in 24-hour uMg excretion. In human kidney cells, ARL15 regulated TRPM6-mediated currents. In zebrafish, dietary Mg2+ regulated the expression of the highly conserved ARL15 ortholog arl15b, and arl15b knockdown resulted in renal Mg2+ wasting and metabolic disturbances. Finally, ARL15 rs35929 modified the association of uMg with fasting insulin and fat mass in a general population. In conclusion, this combined observational and experimental approach uncovered a gene-environment interaction linking Mg2+ deficiency to insulin resistance and obesity.
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Affiliation(s)
- Tanguy Corre
- Institute of Social and Preventive Medicine.,Department of Computational Biology, University of Lausanne, Lausanne, Switzerland.,Swiss Institute of Bioinformatics, Lausanne, Switzerland
| | - Francisco J Arjona
- Department of Physiology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Caroline Hayward
- Medical Research Council Human Genetics Unit, Institute of Genetics and Molecular Medicine
| | - Sonia Youhanna
- Institute of Physiology, University of Zürich, Zurich, Switzerland
| | - Jeroen H F de Baaij
- Department of Physiology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Hendrica Belge
- Institute of Physiology, University of Zürich, Zurich, Switzerland
| | - Nadine Nägele
- Institute of Physiology, University of Zürich, Zurich, Switzerland
| | - Huguette Debaix
- Institute of Physiology, University of Zürich, Zurich, Switzerland
| | - Maxime G Blanchard
- Department of Physiology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Michela Traglia
- Division of Genetics and Cell Biology, San Raffaele Scientific Institute, Milan, Italy
| | - Sarah E Harris
- Centre for Cognitive Ageing and Cognitive Epidemiology.,Medical Genetics Section, University of Edinburgh Centre for Genomic and Experimental Medicine and Medical Research Council Institute of Genetics and Molecular Medicine, Western General Hospital, Edinburgh, Scotland, UK
| | - Sheila Ulivi
- Department of Medical Genetics, Institute for Maternal and Child Health, Istituto di Ricovero e Cura a Carattere Scientifico "Burlo Garofolo," Trieste, Italy
| | - Rico Rueedi
- Department of Computational Biology, University of Lausanne, Lausanne, Switzerland.,Swiss Institute of Bioinformatics, Lausanne, Switzerland
| | - David Lamparter
- Department of Computational Biology, University of Lausanne, Lausanne, Switzerland.,Swiss Institute of Bioinformatics, Lausanne, Switzerland
| | - Aurélien Macé
- Institute of Social and Preventive Medicine.,Swiss Institute of Bioinformatics, Lausanne, Switzerland
| | - Cinzia Sala
- Division of Genetics and Cell Biology, San Raffaele Scientific Institute, Milan, Italy
| | - Stefania Lenarduzzi
- Department of Medical Genetics, Institute for Maternal and Child Health, Istituto di Ricovero e Cura a Carattere Scientifico "Burlo Garofolo," Trieste, Italy
| | | | - Menno Pruijm
- Service of Nephrology, University Hospital of Lausanne, Lausanne, Switzerland
| | - Daniel Ackermann
- University Clinic for Nephrology and Hypertension, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Georg Ehret
- Division of Cardiology, Department of Internal Medicine Specialties, University Hospital of Geneva, Geneva, Switzerland
| | - Daniela Baptista
- Division of Cardiology, Department of Internal Medicine Specialties, University Hospital of Geneva, Geneva, Switzerland
| | - Ozren Polasek
- Faculty of Medicine, University of Split, Split, Croatia
| | - Igor Rudan
- Usher Institute of Population Health Sciences and Informatics
| | - Toby W Hurd
- Medical Research Council Human Genetics Unit, Institute of Genetics and Molecular Medicine
| | - Nicholas D Hastie
- Medical Research Council Human Genetics Unit, Institute of Genetics and Molecular Medicine
| | - Veronique Vitart
- Medical Research Council Human Genetics Unit, Institute of Genetics and Molecular Medicine
| | | | - Zoltán Kutalik
- Institute of Social and Preventive Medicine.,Swiss Institute of Bioinformatics, Lausanne, Switzerland
| | - Sven Bergmann
- Department of Computational Biology, University of Lausanne, Lausanne, Switzerland.,Swiss Institute of Bioinformatics, Lausanne, Switzerland.,Department of Integrative Biomedical Sciences, University of Cape Town, Cape Town, South Africa
| | - Rosa Vargas-Poussou
- Department of Genetics, Hôpital Européen Georges Pompidou, Assistance Publique Hôpitaux de Paris, Paris, France.,Centre de Référence des Maladies Rénales Héréditaires de l'Enfant et de l'Adulte, Paris, France
| | - Martin Konrad
- Department of General Pediatrics, University Hospital Münster, Munster, Germany
| | - Paolo Gasparini
- Department of Medical, Surgical and Health Sciences, University of Trieste, Trieste, Italy; and.,Department of Experimental Genetics, Sidra, Doha, Qatar
| | - Ian J Deary
- Centre for Cognitive Ageing and Cognitive Epidemiology.,Department of Psychology, and
| | - John M Starr
- Centre for Cognitive Ageing and Cognitive Epidemiology.,Alzheimer Scotland Dementia Research Centre, University of Edinburgh, Edinburgh, Scotland, UK
| | - Daniela Toniolo
- Division of Genetics and Cell Biology, San Raffaele Scientific Institute, Milan, Italy
| | | | - Joost G J Hoenderop
- Department of Physiology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, The Netherlands
| | - René J M Bindels
- Department of Physiology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, The Netherlands
| | | | - Olivier Devuyst
- Institute of Physiology, University of Zürich, Zurich, Switzerland;
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50
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Teijeiro-Valiño C, Yebra-Pimentel E, Guerra-Varela J, Csaba N, Alonso MJ, Sánchez L. Assessment of the permeability and toxicity of polymeric nanocapsules using the zebrafish model. Nanomedicine (Lond) 2017; 12:2069-2082. [DOI: 10.2217/nnm-2017-0078] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Aim: To assess the capacity of a new drug delivery nanocapsule (NC) with a double shell of hyaluronic acid and protamine to overcome biological barriers using the zebrafish model. Materials & methods: NCs were prepared by the solvent displacement method, tagged with fluorescent makers and physicochemically characterized. Toxicity was evaluated according to the Fish Embryo Acute Toxicity test, and permeability was tested by exposing zebrafish, with and without chorion, to the fluorescent NCs. Results: Toxicity of NCs was very low as compared with that of a control nanoemulsion. Double-shell NCs were able to cross chorion and skin. Conclusion: Beyond the potential value of hyaluronic acid:protamine NCs for overcoming epithelial barriers, this works highlights the utility of zebrafish for fast screening of nanocarriers.
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Affiliation(s)
- Carmen Teijeiro-Valiño
- Nanobiofar Group, Center for Research in Molecular Medicine & Chronic Diseases (CIMUS), Universidade de Santiago de Compostela, 15706 Santiago de Compostela, Spain
| | - Elena Yebra-Pimentel
- ZF-Screens B.V., 2333 Leiden, The Netherlands
- Department of Zoology, Genetics & Anthropology, Universidade de Santiago de Compostela, 27002 Lugo, Spain
| | - Jorge Guerra-Varela
- Department of Zoology, Genetics & Anthropology, Universidade de Santiago de Compostela, 27002 Lugo, Spain
| | - Noemi Csaba
- Nanobiofar Group, Center for Research in Molecular Medicine & Chronic Diseases (CIMUS), Universidade de Santiago de Compostela, 15706 Santiago de Compostela, Spain
| | - María J Alonso
- Nanobiofar Group, Center for Research in Molecular Medicine & Chronic Diseases (CIMUS), Universidade de Santiago de Compostela, 15706 Santiago de Compostela, Spain
| | - Laura Sánchez
- Department of Zoology, Genetics & Anthropology, Universidade de Santiago de Compostela, 27002 Lugo, Spain
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