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Missawi O, Wouters C, Lambert J, Garigliany MM, Kestemont P, Cornet V. Realistic microplastics harness bacterial presence and promote impairments in early zebrafish embryos: Behavioral, developmental, and transcriptomic approaches. CHEMOSPHERE 2024; 350:141107. [PMID: 38171397 DOI: 10.1016/j.chemosphere.2023.141107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Revised: 12/05/2023] [Accepted: 12/31/2023] [Indexed: 01/05/2024]
Abstract
The plastisphere is a newly recognized ecosystem. However, its interaction with early life stages of aquatic vertebrates is a multifaceted issue that requires further research. This study investigated the involvement of bacteria in shaping realistic microplastics hazards in zebrafish Danio rerio embryos. Fish were exposed to bottle micro-fragments (FR) and textile micro-fibers (FI) of polyethylene terephthalate (5-15 μm), concomitant with Aeromonas salmonicida achromogenes challenge from 2h post-fertilization for 3 days. Egg chorion showed affinity for FR and FI, inducing earlier embryo hatching. However, this effect was masked by biofilm invasion. Fragments were more detrimental than fibers on developmental parameters, while bacterial presence compromised body length, eye, and yolk sac surface area. In a further finding, MPs alone increased locomotor activity in zebrafish larvae, without synergistic effect when combined with bacteria. Data showed that realistic MPs had no significant effects except for downregulated sod and cyp1a gene expression, whereas bacterial challenge inhibited larval potency for most of the evaluated mRNA levels (mpx (immune system), apoeb (lipid metabolism), nfkb and tfa (inflammation), cyp and sod (oxidative stress)). This study provides new insights into realistic microplastic effects under relevant conditions when combined with environmental pathogen within the first life stages of aquatic vertebrates.
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Affiliation(s)
- Omayma Missawi
- University of Namur, Research Unit in Environmental and Evolutionary Biology (URBE), Institute of Life, Earth & Environment, Namur, Belgium.
| | - Charlotte Wouters
- University of Namur, Research Unit in Environmental and Evolutionary Biology (URBE), Institute of Life, Earth & Environment, Namur, Belgium
| | - Jérôme Lambert
- University of Namur, Research Unit in Environmental and Evolutionary Biology (URBE), Institute of Life, Earth & Environment, Namur, Belgium
| | - Mutien-Marie Garigliany
- University of Liege, Laboratory of Veterinary Pathology, Fundamental and Applied Research for Animals & Health (FARAH), Liege, Belgium
| | - Patrick Kestemont
- University of Namur, Research Unit in Environmental and Evolutionary Biology (URBE), Institute of Life, Earth & Environment, Namur, Belgium
| | - Valérie Cornet
- University of Namur, Research Unit in Environmental and Evolutionary Biology (URBE), Institute of Life, Earth & Environment, Namur, Belgium
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Ollewagen T, Benecke R, Smith C. High species homology potentiates quantitative inflammation profiling in zebrafish using immunofluorescence. Heliyon 2024; 10:e23635. [PMID: 38187273 PMCID: PMC10770569 DOI: 10.1016/j.heliyon.2023.e23635] [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: 08/14/2023] [Revised: 12/08/2023] [Accepted: 12/08/2023] [Indexed: 01/09/2024] Open
Abstract
Due to substantial homology between the human and zebrafish genome and a high level of conservation of the innate immune system across species, zebrafish larvae have become an invaluable research tool for studying inflammation and modelling inflammatory disease. However, further microscopy techniques need to be developed for better profiling of inflammation and in particular, integrated cytokine responses to different stimuli - approaches are currently largely limited to assessment of changes in cytokine gene transcription and in vivo visualisation using transgenics, which is limited in terms of the number of cytokines that may be assessed at once. In this study, after confirming substantial homology of human vs zebrafish cytokine amino acid sequences, immunofluorescence staining using antibodies directed at human cytokines was performed. Inflammatory cytokine signalling responses to experimental tailfin transection was assessed over 24 h (1 hpi (hours post injury), 2 hpi, 4 hpi, 24 hpi) in zebrafish larvae, with experimental end point at 120 h post fertilization (hpf). When immunofluorescence results were compared to responses observed in rodent and human literature, it is clear that the cytokines follow a similar response, albeit with a condensed total time course. Notably, tumor necrosis factor-α and monocyte chemoattractant protein-1 increased and remained elevated over the 24-h period. In contrast, interleukin-1β and interleukin-6 peaked at 4 hpi and 2 hpi respectively but had both returned to baseline levels by 24 hpi. Macrophage migration inhibitory factor was lowest at 1 hpi, potentially encouraging macrophage movement into the site of injury, followed by a sharp increase. This protocol provides valuable insight into inflammation over a time course and more so, provides an affordable and accessible method to comprehensively assess inflammation in zebrafish disease models.
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Affiliation(s)
| | - R.M. Benecke
- Experimental Medicine Research Group, Department of Medicine, Faculty of Medicine and Health Sciences, Stellenbosch University, South Africa
| | - C. Smith
- Experimental Medicine Research Group, Department of Medicine, Faculty of Medicine and Health Sciences, Stellenbosch University, South Africa
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Leiba J, Özbilgiç R, Hernández L, Demou M, Lutfalla G, Yatime L, Nguyen-Chi M. Molecular Actors of Inflammation and Their Signaling Pathways: Mechanistic Insights from Zebrafish. BIOLOGY 2023; 12:biology12020153. [PMID: 36829432 PMCID: PMC9952950 DOI: 10.3390/biology12020153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Revised: 01/12/2023] [Accepted: 01/16/2023] [Indexed: 01/21/2023]
Abstract
Inflammation is a hallmark of the physiological response to aggressions. It is orchestrated by a plethora of molecules that detect the danger, signal intracellularly, and activate immune mechanisms to fight the threat. Understanding these processes at a level that allows to modulate their fate in a pathological context strongly relies on in vivo studies, as these can capture the complexity of the whole process and integrate the intricate interplay between the cellular and molecular actors of inflammation. Over the years, zebrafish has proven to be a well-recognized model to study immune responses linked to human physiopathology. We here provide a systematic review of the molecular effectors of inflammation known in this vertebrate and recapitulate their modes of action, as inferred from sterile or infection-based inflammatory models. We present a comprehensive analysis of their sequence, expression, and tissue distribution and summarize the tools that have been developed to study their function. We further highlight how these tools helped gain insights into the mechanisms of immune cell activation, induction, or resolution of inflammation, by uncovering downstream receptors and signaling pathways. These progresses pave the way for more refined models of inflammation, mimicking human diseases and enabling drug development using zebrafish models.
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Rabezanahary ANA, Piette M, Missawi O, Garigliany MM, Kestemont P, Cornet V. Microplastics alter development, behavior, and innate immunity responses following bacterial infection during zebrafish embryo-larval development. CHEMOSPHERE 2023; 311:136969. [PMID: 36306963 DOI: 10.1016/j.chemosphere.2022.136969] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Revised: 09/25/2022] [Accepted: 10/19/2022] [Indexed: 06/16/2023]
Abstract
Although the hazards of microplastics (MPs) have been explored, no complete data exists on the effect of MPs on the egg chorion. This study aims to evaluate the modification of immune responses, metabolism, and behavior of zebrafish larvae (Danio rerio) depending on the moment of exposure. Larvae were exposed to 5 μm polystyrene microbeads at a concentration of 0, 100, or 1000 μg/l, according to a specified times of exposure (0-4, 4-8, 0-8 days postfertilization (dpf)), followed by a bacterial challenge at 8 dpf. After every 4 and 8 dpf, swimming activity, gene expression related to oxidative stress and immune system responses were assessed. During embryonic development, larvae exposed to a concentration of 1000 μg/l MPs already showed a significantly reduced tail coiling frequency, yolk sac resorption and heartbeat. At 8 dpf, swimming activity was altered, even without ingestion and a few days after the end of MP exposure. Our results indicated a difference in immune system (nfkb, il1β) and apoptosis (casp3a, bcl2) related gene expression depending on the timing of MP exposure, which highlighted a contrasting sensitivity according to the exposure time in MP studies. This study brings new insight into how MPs might affect zebrafish larvae health and development even without ingestion.
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Affiliation(s)
- Andry Ny Aina Rabezanahary
- University of Namur, Research Unit in Environmental and Evolutionary Biology (URBE), Institute of Life, Earth & Environment, Namur, Belgium
| | - Mathilde Piette
- University of Namur, Research Unit in Environmental and Evolutionary Biology (URBE), Institute of Life, Earth & Environment, Namur, Belgium
| | - Omayma Missawi
- University of Namur, Research Unit in Environmental and Evolutionary Biology (URBE), Institute of Life, Earth & Environment, Namur, Belgium
| | - Mutien-Marie Garigliany
- University of Liège, Laboratory of Veterinary Pathology, Fundamental and Applied Research for Animals & Health (FARAH), Liège, Belgium
| | - Patrick Kestemont
- University of Namur, Research Unit in Environmental and Evolutionary Biology (URBE), Institute of Life, Earth & Environment, Namur, Belgium
| | - Valérie Cornet
- University of Namur, Research Unit in Environmental and Evolutionary Biology (URBE), Institute of Life, Earth & Environment, Namur, Belgium.
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Dudziak K, Nowak M, Sozoniuk M. One Host-Multiple Applications: Zebrafish (Danio rerio) as Promising Model for Studying Human Cancers and Pathogenic Diseases. Int J Mol Sci 2022; 23:ijms231810255. [PMID: 36142160 PMCID: PMC9499349 DOI: 10.3390/ijms231810255] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2022] [Revised: 09/03/2022] [Accepted: 09/03/2022] [Indexed: 11/17/2022] Open
Abstract
In recent years, zebrafish (ZF) has been increasingly applied as a model in human disease studies, with a particular focus on cancer. A number of advantages make it an attractive alternative for mice widely used so far. Due to the many advantages of zebrafish, modifications can be based on different mechanisms and the induction of human disease can take different forms depending on the research goal. Genetic manipulation, tumor transplantation, or injection of the pathogen are only a few examples of using ZF as a model. Most of the studies are conducted in order to understand the disease mechanism, monitor disease progression, test new or alternative therapies, and select the best treatment. The transplantation of cancer cells derived from patients enables the development of personalized medicine. To better mimic a patient’s body environment, immune-deficient models (SCID) have been developed. A lower immune response is mostly generated by genetic manipulation but also by irradiation or dexamethasone treatment. For many studies, using SCID provides a better chance to avoid cancer cell rejection. In this review, we describe the main directions of using ZF in research, explain why and how zebrafish can be used as a model, what kind of limitations will be met and how to overcome them. We collected recent achievements in this field, indicating promising perspectives for the future.
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Affiliation(s)
- Karolina Dudziak
- Chair and Department of Biochemistry and Molecular Biology, Medical University of Lublin, 20-059 Lublin, Poland
- Correspondence: (K.D.); (M.N.)
| | - Michał Nowak
- Institute of Plant Genetics, Breeding and Biotechnology, University of Life Sciences in Lublin, 20-950 Lublin, Poland
- Correspondence: (K.D.); (M.N.)
| | - Magdalena Sozoniuk
- Institute of Plant Genetics, Breeding and Biotechnology, University of Life Sciences in Lublin, 20-950 Lublin, Poland
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Zebrafish: an underutilized tool for discovery in host–microbe interactions. Trends Immunol 2022; 43:426-437. [DOI: 10.1016/j.it.2022.03.011] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2022] [Revised: 03/31/2022] [Accepted: 03/31/2022] [Indexed: 12/31/2022]
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