The value of zebrafish as an integrative model in effect-directed analysis: a review

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Di Paolo, CarolinaDepartment of Ecosystem Analysis, Institute for Environmental Research, ABBt - Aachen Biology and Biotechnology, RWTH Aachen University, Aachen, Germany (author)

The value of zebrafish as an integrative model in effect-directed analysis : a review

Article/chapterEnglish2015

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2015-03-14
Springer,2015
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LIBRIS-ID:oai:DiVA.org:oru-48135
https://urn.kb.se/resolve?urn=urn:nbn:se:oru:diva-48135URI
https://doi.org/10.1186/s12302-015-0040-yDOI

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Language:English
Summary in:English

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Subject category:for swepub-publicationtype

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Bioassays play a central role in effect-directed analysis (EDA), and their selection and application have to consider rather specific aspects of this approach. Meanwhile, bioassays with zebrafish, an established model organism in different research areas, are increasingly being utilized in EDA. Aiming to contribute for the optimal application of zebrafish bioassays in EDA, this review provides a critical overview of previous EDA investigations that applied zebrafish bioassays, discusses the potential contribution of such methods for EDA and proposes strategies to improve future studies. Over the last 10 years, zebrafish bioassays have guided EDA of natural products and environmental samples. The great majority of studies performed bioassays with embryos and early larvae, which allowed small-scale and low-volume experimental setups, minimized sample use and reduced workload. Biotesting strategies applied zebrafish bioassays as either the only method guiding EDA or instead integrated into multiple bioassay approaches. Furthermore, tiered biotesting applied zebrafish methods in both screening phase as well as for further investigations. For dosing, most of the studies performed solvent exchange of extracts and fractions to dimethyl sulfoxide (DMSO) as carrier. However, high DMSO concentrations were required for the testing of complex matrix extracts, indicating that future studies might benefit from the evaluation of alternative carrier solvents or passive dosing. Surprisingly, only a few studies reported the evaluation of process blanks, indicating a need to improve and standardize methods for blank preparation and biotesting. Regarding evaluated endpoints, while acute toxicity brought limited information, the assessment of specific endpoints was of strong value for bioactivity identification. Therefore, the bioassay specificity and sensitivity to identify the investigated bioactivity are important criteria in EDA. Additionally, it might be necessary to characterize the most adequate exposure windows and assessment setups for bioactivity identification. Finally, a great advantage of zebrafish bioassays in EDA of environmental samples is the availability of mechanism- and endpoint-specific methods for the identification of important classes of contaminants. The evaluation of mechanism-specific endpoints in EDA is considered to be a promising strategy to facilitate the integration of EDA into weight-of-evidence approaches, ultimately contributing for the identification of environmental contaminants causing bioassay and ecological effects.

Subject headings and genre

NATURVETENSKAP Geovetenskap och miljövetenskap Miljövetenskap hsv//swe
NATURAL SCIENCES Earth and Related Environmental Sciences Environmental Sciences hsv//eng
Effect-directed analysis; Bioassay-guided fractionation; Zebrafish; Embryo; Larva; Bioassay; In vitro ; In vivo
Enviromental Science
Miljövetenskap

Added entries (persons, corporate bodies, meetings, titles ...)

Seiler, Thomas B.Department of Ecosystem Analysis, Institute for Environmental Research, ABBt - Aachen Biology and Biotechnology, RWTH Aachen University, Aachen, Germany (author)
Keiter, Steffen,1971-Örebro universitet,Institutionen för naturvetenskap och teknik,Department of Ecosystem Analysis, Institute for Environmental Research, ABBt - Aachen Biology and Biotechnology, RWTH Aachen University, Aachen, Germany,MTM(Swepub:oru)sfkr (author)
Hu, MengHelmholtz-Zentrum für Umweltforschung (UFZ), Helmholtz Centre for Environmental Research, Leipzig, Germany (author)
Muz, MelisHelmholtz-Zentrum für Umweltforschung (UFZ), Helmholtz Centre for Environmental Research, Leipzig, Germany (author)
Brack, WernerHelmholtz-Zentrum für Umweltforschung (UFZ), Helmholtz Centre for Environmental Research, Leipzig, Germany (author)
Hollert, HennerDepartment of Ecosystem Analysis, Institute for Environmental Research, ABBt - Aachen Biology and Biotechnology, RWTH Aachen University, Aachen, Germany; College of Resources and Environmental Science, Chongqing University Beibei, Chongqing, China; College of Environmental Science and Engineering and State Key Laboratory of Pollution Control and Resource Reuse, Tongji University, Shanghai, China; State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, China (author)
Department of Ecosystem Analysis, Institute for Environmental Research, ABBt - Aachen Biology and Biotechnology, RWTH Aachen University, Aachen, GermanyInstitutionen för naturvetenskap och teknik (creator_code:org_t)

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In:Environmental Sciences Europe: Springer27:8, s. 1-112190-47072190-4715

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