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Godoy-Monzon D, Buttaro M, Comba F, Piccaluga F, Cid-Casteulani A, Ordas A. Comparative study of radiological and functional outcomes following a direct anterior approach versus to a posterolateral approach to the hip. Rev Esp Cir Ortop Traumatol (Engl Ed) 2019. [DOI: 10.1016/j.recote.2019.07.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
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Van Wijk RC, Krekels EHJ, Kantae V, Ordas A, Kreling T, Harms AC, Hankemeier T, Spaink HP, van der Graaf PH. Mechanistic and Quantitative Understanding of Pharmacokinetics in Zebrafish Larvae through Nanoscale Blood Sampling and Metabolite Modeling of Paracetamol. J Pharmacol Exp Ther 2019; 371:15-24. [PMID: 31371482 DOI: 10.1124/jpet.119.260299] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2019] [Accepted: 07/31/2019] [Indexed: 12/27/2022] Open
Abstract
Zebrafish larvae are increasingly used for pharmacological research, but internal drug exposure is often not measured. Understanding pharmacokinetics is necessary for reliable translation of pharmacological results to higher vertebrates, including humans. Quantification of drug clearance and distribution requires measurements of blood concentrations. Additionally, measuring drug metabolites is of importance to understand clearance in this model organism mechanistically. We therefore mechanistically studied and quantified pharmacokinetics in zebrafish larvae, and compared this to higher vertebrates, using paracetamol (acetaminophen) as a paradigm compound. A method was developed to sample blood from zebrafish larvae 5 days post fertilization. Blood concentrations of paracetamol and its major metabolites, paracetamol-glucuronide and paracetamol-sulfate, were measured. Blood concentration data were combined with measured amounts in larval homogenates and excreted amounts and simultaneously analyzed through nonlinear mixed-effects modeling, quantifying absolute clearance and distribution volume. Blood sampling from zebrafish larvae was most successful from the posterior cardinal vein, with a median volume (interquartile range) of 1.12 nl (0.676-1.66 nl) per blood sample. Samples were pooled (n = 15-35) to reach measurable levels. Paracetamol blood concentrations at steady state were only 10% of the external paracetamol concentration. Paracetamol-sulfate was the major metabolite, and its formation was quantified using a time-dependent metabolic formation rate. Absolute clearance and distribution volume correlated well with reported values in higher vertebrates, including humans. Based on blood concentrations and advanced data analysis, the mechanistic and quantitative understanding of paracetamol pharmacokinetics in zebrafish larvae has been established. This will improve the translational value of this vertebrate model organism in drug discovery and development. SIGNIFICANCE STATEMENT: In early phases of drug development, new compounds are increasingly screened in zebrafish larvae, but the internal drug exposure is often not taken into consideration. We developed innovative experimental and computational methods, including a blood-sampling technique, to measure the paradigm drug paracetamol (acetaminophen) and its major metabolites and quantify pharmacokinetics (absorption, distribution, elimination) in zebrafish larvae of 5 days post fertilization with a total volume of only 300 nl. These parameter values were scaled to higher vertebrates, including humans.
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Affiliation(s)
- Rob C Van Wijk
- Systems Biomedicine and Pharmacology, Leiden Academic Centre for Drug Research (R.C.v.W., E.H.J.K., V.K., T.K., A.C.H., T.H., P.H.v.d.G.) and Animal Sciences and Health, Institute of Biology Leiden (A.O., H.P.S.), Leiden University, Leiden, The Netherlands; and Certara QSP, Canterbury, United Kingdom (P.H.v.d.G.)
| | - Elke H J Krekels
- Systems Biomedicine and Pharmacology, Leiden Academic Centre for Drug Research (R.C.v.W., E.H.J.K., V.K., T.K., A.C.H., T.H., P.H.v.d.G.) and Animal Sciences and Health, Institute of Biology Leiden (A.O., H.P.S.), Leiden University, Leiden, The Netherlands; and Certara QSP, Canterbury, United Kingdom (P.H.v.d.G.)
| | - Vasudev Kantae
- Systems Biomedicine and Pharmacology, Leiden Academic Centre for Drug Research (R.C.v.W., E.H.J.K., V.K., T.K., A.C.H., T.H., P.H.v.d.G.) and Animal Sciences and Health, Institute of Biology Leiden (A.O., H.P.S.), Leiden University, Leiden, The Netherlands; and Certara QSP, Canterbury, United Kingdom (P.H.v.d.G.)
| | - Anita Ordas
- Systems Biomedicine and Pharmacology, Leiden Academic Centre for Drug Research (R.C.v.W., E.H.J.K., V.K., T.K., A.C.H., T.H., P.H.v.d.G.) and Animal Sciences and Health, Institute of Biology Leiden (A.O., H.P.S.), Leiden University, Leiden, The Netherlands; and Certara QSP, Canterbury, United Kingdom (P.H.v.d.G.)
| | - Thijs Kreling
- Systems Biomedicine and Pharmacology, Leiden Academic Centre for Drug Research (R.C.v.W., E.H.J.K., V.K., T.K., A.C.H., T.H., P.H.v.d.G.) and Animal Sciences and Health, Institute of Biology Leiden (A.O., H.P.S.), Leiden University, Leiden, The Netherlands; and Certara QSP, Canterbury, United Kingdom (P.H.v.d.G.)
| | - Amy C Harms
- Systems Biomedicine and Pharmacology, Leiden Academic Centre for Drug Research (R.C.v.W., E.H.J.K., V.K., T.K., A.C.H., T.H., P.H.v.d.G.) and Animal Sciences and Health, Institute of Biology Leiden (A.O., H.P.S.), Leiden University, Leiden, The Netherlands; and Certara QSP, Canterbury, United Kingdom (P.H.v.d.G.)
| | - Thomas Hankemeier
- Systems Biomedicine and Pharmacology, Leiden Academic Centre for Drug Research (R.C.v.W., E.H.J.K., V.K., T.K., A.C.H., T.H., P.H.v.d.G.) and Animal Sciences and Health, Institute of Biology Leiden (A.O., H.P.S.), Leiden University, Leiden, The Netherlands; and Certara QSP, Canterbury, United Kingdom (P.H.v.d.G.)
| | - Herman P Spaink
- Systems Biomedicine and Pharmacology, Leiden Academic Centre for Drug Research (R.C.v.W., E.H.J.K., V.K., T.K., A.C.H., T.H., P.H.v.d.G.) and Animal Sciences and Health, Institute of Biology Leiden (A.O., H.P.S.), Leiden University, Leiden, The Netherlands; and Certara QSP, Canterbury, United Kingdom (P.H.v.d.G.)
| | - Piet H van der Graaf
- Systems Biomedicine and Pharmacology, Leiden Academic Centre for Drug Research (R.C.v.W., E.H.J.K., V.K., T.K., A.C.H., T.H., P.H.v.d.G.) and Animal Sciences and Health, Institute of Biology Leiden (A.O., H.P.S.), Leiden University, Leiden, The Netherlands; and Certara QSP, Canterbury, United Kingdom (P.H.v.d.G.)
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Anelli V, Ordas A, Kneitz S, Sagredo LM, Gourain V, Schartl M, Meijer AH, Mione M. Ras-Induced miR-146a and 193a Target Jmjd6 to Regulate Melanoma Progression. Front Genet 2018; 9:675. [PMID: 30619488 PMCID: PMC6305343 DOI: 10.3389/fgene.2018.00675] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2018] [Accepted: 12/04/2018] [Indexed: 12/17/2022] Open
Abstract
Ras genes are among the most commonly mutated genes in human cancer; yet our understanding of their oncogenic activity at the molecular mechanistic level is incomplete. To identify downstream events that mediate ras-induced cellular transformation in vivo, we analyzed global microRNA expression in three different models of Ras-induction and tumor formation in zebrafish. Six microRNAs were found increased in Ras-induced melanoma, glioma and in an inducible model of ubiquitous Ras expression. The upregulation of the microRNAs depended on the activation of the ERK and AKT pathways and to a lesser extent, on mTOR signaling. Two Ras-induced microRNAs (miR-146a and 193a) target Jmjd6, inducing downregulation of its mRNA and protein levels at the onset of Ras expression during melanoma development. However, at later stages of melanoma progression, jmjd6 levels were found elevated. The dynamic of Jmjd6 levels during progression of melanoma in the zebrafish model suggests that upregulation of the microRNAs targeting Jmjd6 may be part of an anti-cancer response. Indeed, triple transgenic fish engineered to express a microRNA-resistant Jmjd6 from the onset of melanoma have increased tumor burden, higher infiltration of leukocytes and shorter melanoma-free survival. Increased JMJD6 expression is found in several human cancers, including melanoma, suggesting that the up-regulation of Jmjd6 is a critical event in tumor progression. The following link has been created to allow review of record GSE37015: http://www.ncbi.nlm.nih.gov/geo/query/acc.cgi?token=jjcrbiuicyyqgpc&acc=GSE37015.
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Affiliation(s)
| | - Anita Ordas
- Institute of Biology, Leiden University, Leiden, Netherlands
| | - Susanne Kneitz
- Physiological Chemistry, Biocenter, University of Würzburg, Würzburg, Germany
| | - Leonel Munoz Sagredo
- Institute of Toxicology and Genetics, Karlsruhe Institute of Technology, Karlsruhe, Germany.,Faculty of Medicine, University of Valparaiso, Valparaíso, Chile
| | - Victor Gourain
- Institute of Toxicology and Genetics, Karlsruhe Institute of Technology, Karlsruhe, Germany
| | - Manfred Schartl
- Physiological Chemistry, Biocenter, University of Würzburg, Würzburg, Germany.,Comprehensive Cancer Center, University Clinic Würzburg, Würzburg, Germany.,Hagler Institute for Advanced Study and Department of Biology, Texas A&M University, College Station, TX, United States
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Kantae V, Krekels EHJ, Ordas A, González O, van Wijk RC, Harms AC, Racz PI, van der Graaf PH, Spaink HP, Hankemeier T. Pharmacokinetic Modeling of Paracetamol Uptake and Clearance in Zebrafish Larvae: Expanding the Allometric Scale in Vertebrates with Five Orders of Magnitude. Zebrafish 2016; 13:504-510. [PMID: 27632065 PMCID: PMC5124745 DOI: 10.1089/zeb.2016.1313] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Zebrafish larvae (Danio rerio) are increasingly used to translate findings regarding drug efficacy and safety from in vitro-based assays to vertebrate species, including humans. However, the limited understanding of drug exposure in this species hampers its implementation in translational research. Using paracetamol as a paradigm compound, we present a novel method to characterize pharmacokinetic processes in zebrafish larvae, by combining sensitive bioanalytical methods and nonlinear mixed effects modeling. The developed method allowed quantification of paracetamol and its two major metabolites, paracetamol-sulfate and paracetamol-glucuronide in pooled samples of five lysed zebrafish larvae of 3 days post-fertilization. Paracetamol drug uptake was quantified to be 0.289 pmole/min and paracetamol clearance was quantified to be 1.7% of the total value of the larvae. With an average volume determined to be 0.290 μL, this yields an absolute clearance of 2.96 × 107 L/h, which scales reasonably well with clearance rates in higher vertebrates. The developed methodology will improve the success rate of drug screens in zebrafish larvae and the translation potential of findings, by allowing the establishment of accurate exposure profiles and thereby also the establishment of concentration–effect relationships.
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Affiliation(s)
- Vasudev Kantae
- 1 Division of Analytical Biosciences, Systems Pharmacology Cluster, Leiden Academic Centre for Drug Research, Leiden University , Leiden, The Netherlands
| | - Elke H J Krekels
- 2 Division of Pharmacology, Systems Pharmacology Cluster, Leiden Academic Centre for Drug Research, Leiden University , Leiden, The Netherlands
| | - Anita Ordas
- 3 IBL, Institute of Biology, Leiden University , Leiden, the Netherlands
| | - Oskar González
- 1 Division of Analytical Biosciences, Systems Pharmacology Cluster, Leiden Academic Centre for Drug Research, Leiden University , Leiden, The Netherlands .,4 Science and Technology Faculty, Analytical Chemistry Department, University of the Basque Country/EHU , Bilbao, Spain
| | - Rob C van Wijk
- 2 Division of Pharmacology, Systems Pharmacology Cluster, Leiden Academic Centre for Drug Research, Leiden University , Leiden, The Netherlands
| | - Amy C Harms
- 1 Division of Analytical Biosciences, Systems Pharmacology Cluster, Leiden Academic Centre for Drug Research, Leiden University , Leiden, The Netherlands
| | | | - Piet H van der Graaf
- 2 Division of Pharmacology, Systems Pharmacology Cluster, Leiden Academic Centre for Drug Research, Leiden University , Leiden, The Netherlands
| | - Herman P Spaink
- 3 IBL, Institute of Biology, Leiden University , Leiden, the Netherlands
| | - Thomas Hankemeier
- 1 Division of Analytical Biosciences, Systems Pharmacology Cluster, Leiden Academic Centre for Drug Research, Leiden University , Leiden, The Netherlands
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Ordas A, Raterink RJ, Cunningham F, Jansen HJ, Wiweger MI, Jong-Raadsen S, Bos S, Bates RH, Barros D, Meijer AH, Vreeken RJ, Ballell-Pages L, Dirks RP, Hankemeier T, Spaink HP. Testing tuberculosis drug efficacy in a zebrafish high-throughput translational medicine screen. Antimicrob Agents Chemother 2015; 59:753-62. [PMID: 25385118 PMCID: PMC4335901 DOI: 10.1128/aac.03588-14] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2014] [Accepted: 11/05/2014] [Indexed: 12/17/2022] Open
Abstract
The translational value of zebrafish high-throughput screens can be improved when more knowledge is available on uptake characteristics of potential drugs. We investigated reference antibiotics and 15 preclinical compounds in a translational zebrafish-rodent screening system for tuberculosis. As a major advance, we have developed a new tool for testing drug uptake in the zebrafish model. This is important, because despite the many applications of assessing drug efficacy in zebrafish research, the current methods for measuring uptake using mass spectrometry do not take into account the possible adherence of drugs to the larval surface. Our approach combines nanoliter sampling from the yolk using a microneedle, followed by mass spectrometric analysis. To date, no single physicochemical property has been identified to accurately predict compound uptake; our method offers a great possibility to monitor how any novel compound behaves within the system. We have correlated the uptake data with high-throughput drug-screening data from Mycobacterium marinum-infected zebrafish larvae. As a result, we present an improved zebrafish larva drug-screening platform which offers new insights into drug efficacy and identifies potential false negatives and drugs that are effective in zebrafish and rodents. We demonstrate that this improved zebrafish drug-screening platform can complement conventional models of in vivo Mycobacterium tuberculosis-infected rodent assays. The detailed comparison of two vertebrate systems, fish and rodent, may give more predictive value for efficacy of drugs in humans.
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Affiliation(s)
- Anita Ordas
- IBL, Leiden University, Leiden, The Netherlands
| | - Robert-Jan Raterink
- Division of Analytical BioSciences, Leiden Academic Centre for Drug Research and Netherlands Metabolomics Centre, Leiden University, Leiden, The Netherlands
| | | | | | - Malgorzata I Wiweger
- IBL, Leiden University, Leiden, The Netherlands ZF-screens B.V., Leiden, The Netherlands
| | | | - Sabine Bos
- Division of Analytical BioSciences, Leiden Academic Centre for Drug Research and Netherlands Metabolomics Centre, Leiden University, Leiden, The Netherlands
| | | | | | | | - Rob J Vreeken
- Division of Analytical BioSciences, Leiden Academic Centre for Drug Research and Netherlands Metabolomics Centre, Leiden University, Leiden, The Netherlands
| | | | | | - Thomas Hankemeier
- Division of Analytical BioSciences, Leiden Academic Centre for Drug Research and Netherlands Metabolomics Centre, Leiden University, Leiden, The Netherlands
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Veneman WJ, de Sonneville J, van der Kolk KJ, Ordas A, Al-Ars Z, Meijer AH, Spaink HP. Analysis of RNAseq datasets from a comparative infectious disease zebrafish model using GeneTiles bioinformatics. Immunogenetics 2014; 67:135-47. [PMID: 25503064 PMCID: PMC4325186 DOI: 10.1007/s00251-014-0820-3] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2014] [Accepted: 11/28/2014] [Indexed: 11/30/2022]
Abstract
We present a RNA deep sequencing (RNAseq) analysis of a comparison of the transcriptome responses to infection of zebrafish larvae with Staphylococcus epidermidis and Mycobacterium marinum bacteria. We show how our developed GeneTiles software can improve RNAseq analysis approaches by more confidently identifying a large set of markers upon infection with these bacteria. For analysis of RNAseq data currently, software programs such as Bowtie2 and Samtools are indispensable. However, these programs that are designed for a LINUX environment require some dedicated programming skills and have no options for visualisation of the resulting mapped sequence reads. Especially with large data sets, this makes the analysis time consuming and difficult for non-expert users. We have applied the GeneTiles software to the analysis of previously published and newly obtained RNAseq datasets of our zebrafish infection model, and we have shown the applicability of this approach also to published RNAseq datasets of other organisms by comparing our data with a published mammalian infection study. In addition, we have implemented the DEXSeq module in the GeneTiles software to identify genes, such as glucagon A, that are differentially spliced under infection conditions. In the analysis of our RNAseq data, this has led to the possibility to improve the size of data sets that could be efficiently compared without using problem-dedicated programs, leading to a quick identification of marker sets. Therefore, this approach will also be highly useful for transcriptome analyses of other organisms for which well-characterised genomes are available.
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Affiliation(s)
- Wouter J Veneman
- Institute of Biology, Leiden University, Einsteinweg 55, 2333 CC, Leiden, The Netherlands,
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Veneman WJ, Marín-Juez R, de Sonneville J, Ordas A, Jong-Raadsen S, Meijer AH, Spaink HP. Establishment and optimization of a high throughput setup to study Staphylococcus epidermidis and Mycobacterium marinum infection as a model for drug discovery. J Vis Exp 2014:e51649. [PMID: 24998295 PMCID: PMC4206090 DOI: 10.3791/51649] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Zebrafish are becoming a valuable tool in the preclinical phase of drug discovery screenings as a whole animal model with high throughput screening possibilities. They can be used to bridge the gap between cell based assays at earlier stages and in vivo validation in mammalian models, reducing, in this way, the number of compounds passing through to testing on the much more expensive rodent models. In this light, in the present manuscript is described a new high throughput pipeline using zebrafish as in vivo model system for the study of Staphylococcus epidermidis and Mycobacterium marinum infection. This setup allows the generation and analysis of large number of synchronous embryos homogenously infected. Moreover the flexibility of the pipeline allows the user to easily implement other platforms to improve the resolution of the analysis when needed. The combination of the zebrafish together with innovative high throughput technologies opens the field of drug testing and discovery to new possibilities not only because of the strength of using a whole animal model but also because of the large number of transgenic lines available that can be used to decipher the mode of action of new compounds.
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Zope HR, Versluis F, Ordas A, Voskuhl J, Spaink HP, Kros A. In Vitro and In Vivo Supramolecular Modification of Biomembranes Using a Lipidated Coiled-Coil Motif. Angew Chem Int Ed Engl 2013; 52:14247-51. [DOI: 10.1002/anie.201306033] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2013] [Revised: 08/30/2013] [Indexed: 01/22/2023]
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Zope HR, Versluis F, Ordas A, Voskuhl J, Spaink HP, Kros A. Supramolekulare In-vitro- und In-vivo-Funktionalisierung von Biomembranen durch ein lipidiertes Coiled-Coil-Bindungsmotiv. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201306033] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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Ordas A, Kanwal Z, Lindenberg V, Rougeot J, Mink M, Spaink HP, Meijer AH. MicroRNA-146 function in the innate immune transcriptome response of zebrafish embryos to Salmonella typhimurium infection. BMC Genomics 2013; 14:696. [PMID: 24112639 PMCID: PMC3852110 DOI: 10.1186/1471-2164-14-696] [Citation(s) in RCA: 77] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2013] [Accepted: 09/17/2013] [Indexed: 12/20/2022] Open
Abstract
Background MicroRNAs (miRNAs) have recently been shown to play important roles in development of the immune system and in fine-tuning of immune responses. Human miR-146 family members are known as inflammation-inducible miRNAs involved in negative feedback regulation of Toll-like receptor (TLR) signalling. Dysregulation of the miR-146 family has often been linked to inflammatory diseases and malignancies. This study reports on miR-146a and miR-146b as infection-inducible miRNAs in zebrafish, which has emerged as a model species for human disease. Results Using a custom-designed microarray platform for miRNA expression we found that both members of the zebrafish miR-146 family, miR-146a and miR-146b, were commonly induced by infection of zebrafish embryos with Salmonella typhimurium and by infection of adult fish with Mycobacterium marinum. The induction of these miRNAs was confirmed by Taqman miRNA assays. Subsequently, we used zebrafish embryos, in which adaptive immunity is not yet active, as an in vivo system to investigate the role of miR-146 in the innate immune response to S. typhimurium infection. Knockdown of traf6 and use of myd88 mutants demonstrated that the induction of miR-146a and miR-146b by S. typhimurium infection was affected by disruption of the MyD88-Traf6 pathway that mediates transduction of TLR signals and cytokine responses. In turn, knockdown of miR-146 itself had no major effects on the expression of known targets of MyD88-Traf6 signalling. Instead, RNA sequencing analysis showed that miR-146 knockdown led to an increased induction of six members of the apolipoprotein gene family in S. typhimurium-infected embryos. Conclusion Based on microarray analysis and Taqman miRNA assays we conclude that members of the miR-146 family, which is highly conserved between fish and human, are induced by bacterial infection in zebrafish in a MyD88 and Traf6 dependent manner. The combined knockdown of miR-146a and miR-146b in zebrafish embryos infected with S. typhimurium had no major effect on the expression of pro-inflammatory genes and transcription factors known to be downstream of the MyD88-Traf6 pathway. In contrast, apolipoprotein-mediated lipid transport emerged as an infection-inducible pathway under miR-146 knockdown conditions, suggesting a possible function of miR-146 in regulating lipid metabolism during inflammation.
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Affiliation(s)
- Anita Ordas
- Institute of Biology, Leiden University, Einsteinweg 55, 2333 CC Leiden, The Netherlands.
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Hajdu E, Matuz M, Benko R, Ordas A, Nagy E. An 8-Year Evaluation of Antibiotic Consumption and Antibiotic Resistance AmongStreptococcus pneumoniaefrom In- and Out-Patients in Szeged, Hungary. J Chemother 2013; 19:519-27. [DOI: 10.1179/joc.2007.19.5.519] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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Spaink HP, Cui C, Wiweger MI, Jansen HJ, Veneman WJ, Marín-Juez R, de Sonneville J, Ordas A, Torraca V, van der Ent W, Leenders WP, Meijer AH, Snaar-Jagalska BE, Dirks RP. Robotic injection of zebrafish embryos for high-throughput screening in disease models. Methods 2013; 62:246-54. [PMID: 23769806 DOI: 10.1016/j.ymeth.2013.06.002] [Citation(s) in RCA: 69] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2013] [Revised: 05/31/2013] [Accepted: 06/03/2013] [Indexed: 12/31/2022] Open
Abstract
The increasing use of zebrafish larvae for biomedical research applications is resulting in versatile models for a variety of human diseases. These models exploit the optical transparency of zebrafish larvae and the availability of a large genetic tool box. Here we present detailed protocols for the robotic injection of zebrafish embryos at very high accuracy with a speed of up to 2000 embryos per hour. These protocols are benchmarked for several applications: (1) the injection of DNA for obtaining transgenic animals, (2) the injection of antisense morpholinos that can be used for gene knock-down, (3) the injection of microbes for studying infectious disease, and (4) the injection of human cancer cells as a model for tumor progression. We show examples of how the injected embryos can be screened at high-throughput level using fluorescence analysis. Our methods open up new avenues for the use of zebrafish larvae for large compound screens in the search for new medicines.
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Affiliation(s)
- Herman P Spaink
- Department of Molecular Cell Biology, Institute of Biology, Leiden University, The Netherlands.
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Ordas A, Hegedus Z, Henkel CV, Stockhammer OW, Butler D, Jansen HJ, Racz P, Mink M, Spaink HP, Meijer AH. Deep sequencing of the innate immune transcriptomic response of zebrafish embryos to Salmonella infection. Fish Shellfish Immunol 2011; 31:716-724. [PMID: 20816807 DOI: 10.1016/j.fsi.2010.08.022] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2010] [Revised: 08/15/2010] [Accepted: 08/24/2010] [Indexed: 05/29/2023]
Abstract
Salmonella enterica serovar Typhimurium (S. typhimurium) bacteria cause an inflammatory and lethal infection in zebrafish embryos. To characterize the embryonic innate host response at the transcriptome level, we have extended and validated previous microarray data by Illumina next-generation sequencing analysis. We obtained 10 million sequence reads from control and Salmonella-infected zebrafish embryos using a tag-based sequencing method (DGE or Tag-Seq) and 15 million reads using whole transcript sequencing (RNA-Seq), which respectively mapped to circa 65% and 85% of 28,716 known Ensembl transcripts. Both sequencing methods showed a strong correlation of sequence read counts per transcript and an overlap of 241 transcripts differentially expressed in response to infection. A lower overlap of 165 transcripts was observed with previous microarray data. Based on the combined sequencing-based and microarray-based transcriptome data we compiled an annotated reference set of infection-responsive genes in zebrafish embryos, encoding transcription factors, signal transduction proteins, cytokines and chemokines, complement factors, proteins involved in apoptosis and proteolysis, proteins with anti-microbial activities, as well as many known or novel proteins not previously linked to the immune response. Furthermore, by comparison of the deep sequencing data of S. typhimurium infection in zebrafish embryos with previous deep sequencing data of Mycobacterium marinum infection in adult zebrafish we derived a common set of infection-responsive genes. This gene set consists of known and putative innate host defense genes that are expressed both in the absence and presence of a fully developed adaptive immune system and that provide a valuable reference for future studies of host-pathogen interactions using zebrafish infection models.
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Affiliation(s)
- Anita Ordas
- Institute of Biology, Leiden University, Einsteinweg 55, 2333 CC Leiden, The Netherlands
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van Soest JJ, Stockhammer OW, Ordas A, Bloemberg GV, Spaink HP, Meijer AH. Comparison of static immersion and intravenous injection systems for exposure of zebrafish embryos to the natural pathogen Edwardsiella tarda. BMC Immunol 2011; 12:58. [PMID: 22003892 PMCID: PMC3206475 DOI: 10.1186/1471-2172-12-58] [Citation(s) in RCA: 61] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2011] [Accepted: 10/17/2011] [Indexed: 11/25/2022] Open
Abstract
Background The zebrafish embryo is an important in vivo model to study the host innate immune response towards microbial infection. In most zebrafish infectious disease models, infection is achieved by micro-injection of bacteria into the embryo. Alternatively, Edwardsiella tarda, a natural fish pathogen, has been used to treat embryos by static immersion. In this study we used transcriptome profiling and quantitative RT-PCR to analyze the immune response induced by E. tarda immersion and injection. Results Mortality rates after static immersion of embryos in E. tarda suspension varied between 25-75%, while intravenous injection of bacteria resulted in 100% mortality. Quantitative RT-PCR analysis on the level of single embryos showed that expression of the proinflammatory marker genes il1b and mmp9 was induced only in some embryos that were exposed to E. tarda in the immersion system, whereas intravenous injection of E. tarda led to il1b and mmp9 induction in all embryos. In addition, microarray expression profiles of embryos subjected to immersion or injection showed little overlap. E. tarda-injected embryos displayed strong induction of inflammatory and defense genes and of regulatory genes of the immune response. E. tarda-immersed embryos showed transient induction of the cytochrome P450 gene cyp1a. This gene was also induced after immersion in Escherichia coli and Pseudomonas aeruginosa suspensions, but, in contrast, was not induced upon intravenous E. tarda injection. One of the rare common responses in the immersion and injection systems was induction of irg1l, a homolog of a murine immunoresponsive gene of unknown function. Conclusions Based on the differences in mortality rates between experiments and gene expression profiles of individual embryos we conclude that zebrafish embryos cannot be reproducibly infected by exposure to E. tarda in the immersion system. Induction of il1b and mmp9 was consistently observed in embryos that had been systemically infected by intravenous injection, while the early transcriptional induction of cyp1a and irg1l in the immersion system may reflect an epithelial or other tissue response towards cell membrane or other molecules that are shed or released by bacteria. Our microarray expression data provide a useful reference for future analysis of signal transduction pathways underlying the systemic innate immune response versus those underlying responses to external bacteria and secreted virulence factors and toxins.
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Affiliation(s)
- Joost J van Soest
- Institute of Biology, Leiden University, PO Box 9502, 2300 RA Leiden, The Netherlands
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Tóthpál A, Ordas A, Hajdú E, Kardos S, Nagy E, Nagy K, Dobay O. A marked shift in the serotypes of pneumococci isolated from healthy children in Szeged, Hungary, over a 6-year period. Acta Microbiol Immunol Hung 2011; 58:239-46. [PMID: 21983326 DOI: 10.1556/amicr.58.2011.3.8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Streptococcus pneumoniae is an important pathogen with significant morbidity and mortality rates worldwide, especially among children <5 years. Healthy carriers are the most important sources of pneumococcal infections, and the nasopharyngeal colonisation is the most prevalent among children attending communities such as day-care centres (DCCs). The conjugate pneumococcal vaccines (PCVs) were shown to have an impact on the colonisation, and so play an important role in inhibiting infections. In this study we compared the nasal carriage of healthy children attending DCCs in Szeged, Hungary in 2003/2004, when nobody was vaccinated, and in 2010, when already 1/5 of the children received PCV-7. Significant differences were observed in the serotype distribution, representing a marked shift from the previously widespread vaccine-types (mostly 6A or 14) to others (11A and 23F). The new serotypes showed higher antibiotic susceptibility. The bacterium exchange between children was clear from the pulsed-field gel electrophoresis (PFGE) patterns, and the circulation of certain international clones plays also a role in these dynamic changes.
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Affiliation(s)
- Adrienn Tóthpál
- 1 Semmelweis University Institute of Medical Microbiology Nagyvárad tér 4 H-1089 Budapest Hungary
| | - Anita Ordas
- 2 University of Szeged Department of Clinical Microbiology, Faculty of Medicine Semmelweis u. 6 H-6725 Szeged Hungary
| | | | - Szilvia Kardos
- 1 Semmelweis University Institute of Medical Microbiology Nagyvárad tér 4 H-1089 Budapest Hungary
| | - Erzsébet Nagy
- 2 University of Szeged Department of Clinical Microbiology, Faculty of Medicine Semmelweis u. 6 H-6725 Szeged Hungary
| | - K. Nagy
- 1 Semmelweis University Institute of Medical Microbiology Nagyvárad tér 4 H-1089 Budapest Hungary
| | - Orsolya Dobay
- 1 Semmelweis University Institute of Medical Microbiology Nagyvárad tér 4 H-1089 Budapest Hungary
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Szauter K, Ordas A, Laxer R, Pope E, Wherrett D, Alman B, Mink M, Boyd C, Csiszar K, Hinek A. A novel fibrotic disorder associated with increased dermal fibroblast proliferation and downregulation of genes of the microfibrillar network. Br J Dermatol 2010; 163:1102-15. [DOI: 10.1111/j.1365-2133.2010.09911.x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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Hegedűs Z, Zakrzewska A, Ágoston VC, Ordas A, Rácz P, Mink M, Spaink HP, Meijer AH. Deep sequencing of the zebrafish transcriptome response to mycobacterium infection. Mol Immunol 2009; 46:2918-30. [PMID: 19631987 DOI: 10.1016/j.molimm.2009.07.002] [Citation(s) in RCA: 167] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2009] [Accepted: 07/01/2009] [Indexed: 10/20/2022]
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Racz P, Mink M, Ordas A, Cao T, Szalma S, Szauter KM, Csiszar K. The human orthologue of murine Mpzl3 with predicted adhesive and immune functions is a potential candidate gene for immune-related hereditary hair loss. Exp Dermatol 2008; 18:261-3. [PMID: 19054061 DOI: 10.1111/j.1600-0625.2008.00797.x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We have recently reported a mutation within the conserved immunoglobulin V-type domain of the predicted adhesion protein Mpzl3 (MIM 611707) in rough coat (rc) mice with severe skin abnormalities and progressive cyclic hair loss. In this study, we tested the hypothesis that the human orthologue MPZL3 on chromosome 11q23.3 is a candidate for similar symptoms in humans. The predicted conserved MPZL3 protein has two transmembrane motifs flanking an extracellular Ig-like domain. The R100Q rc mutation is within the Ig-domain recognition loop that has roles in T-cell receptors and cell adhesion. Results of the rc mouse study, 3D structure predictions, homology with Myelin Protein Zero and EVA1, comprehensive database analyses of polymorphisms and mutations within the human MPZL3 gene and its cell, tissue expression and immunostaining pattern indicate that homozygous or compound heterozygous mutations of MPZL3 might be involved in immune-mediated human hereditary disorders with hair loss.
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Velasco P, Soengas P, Revilla P, Ordas A, Malvar RA. Mean generation analysis of the damage caused by Sesamia nonagrioides (Lepidoptera: Noctuidae) and Ostrinia nubilalis (Lepidoptera: Crambidae) in sweet corn ears. J Econ Entomol 2004; 97:120-126. [PMID: 14998135 DOI: 10.1093/jee/97.1.120] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Sesamia nonagrioides (Lefebvre) and Ostrinia nubilalis (Hübner) are the main maize (Zea mays L.) pests in Mediterranean countries. To develop insect-resistant cultivars, it is helpful to know the genetic control of the resistance. Our objective was to determine the genetic control of the resistance to both borers. For each of two crosses (EP59 x P51 and 15125 x EP61), six generations were evaluated (P1, P2, F1, F2, BC1, and BC2). Genetic effects x environment interactions were not significant. For the O. nubilalis resistance traits; both crosses fitted an additive-dominance model. EP59 x P51 had important dominance and additive effects, whereas for 15125 x EP61 we did not detect significant genetic effects, but significant year effects were detected. For S. nonagrioides infestation, both crosses fitted to an additive-dominance model. There were additive effects for most traits in EP59 x P51. The cross I5125 x EP61 showed significant dominance effects for several traits. Resistance to both corn borers fit an additive-dominance model, but genetic effects depend on the cross evaluated. In the resistance to S. nonagrioides, additive effects were important for shank resistance, which is a useful trait for avoiding S. nonagrioides damage on the ear. Early sowings are recommended to make good use of the resistance to both corn borers. In the late sowings, damage is so high that resistant plants are not able to control the pest.
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Affiliation(s)
- P Velasco
- Misi6n Biol6gica de Galicia, Spanish Council for Scientific Research (Consejo Superior de Investigaciones Cientificas), Apartado 28, 36080 Pontevedra, Spain
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Wardley RC, de M Andrade C, Black DN, de Castro Portugal FL, Enjuanes L, Hess WR, Mebus C, Ordas A, Rutili D, Sanchez Vizcaino J, Vigario JD, Wilkinson PJ, Moura Nunes JF, Thomson G. African Swine Fever virus. Brief review. Arch Virol 1983; 76:73-90. [PMID: 6307224 DOI: 10.1007/bf01311692] [Citation(s) in RCA: 73] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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Pan IC, Trautman R, Hess WR, DeBoer CJ, Tessler J, Ordas A, Botija CS, Ovejero J, Sanchez MC. African swine fever: comparison of four serotests on porcine serums in Spain. Am J Vet Res 1974; 35:787-90. [PMID: 4209190] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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Botija CS, Ordas A, Ovejero JI. [Diagnosis of equine plague in Spain]. Bull Off Int Epizoot 1967; 68:695-703. [PMID: 4308949] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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