Cited by 204Microplastics and Plastic PollutionEnvironmental Toxicology and EcotoxicologyPharmaceutical and Antibiotic Environmental Impacts

Pathway analysis of systemic transcriptome responses to injected polystyrene particles in zebrafish larvae

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Veneman, Wouter J., Spaink, Herman P., Brun, Nadja R., Bosker, Thijs, Vijver, Martina G.·2017·Aquatic Toxicology

Abstract

Microplastics are a contaminant of emergent concern in the environment, however, to date there is a limited understanding on their movement within organisms and the response of organisms. In the current study zebrafish embryos at different development stages were exposed to 700nm fluorescent polystyrene (PS) particles and the response pathway after exposure was investigated using imaging and transcriptomics. Our results show limited spreading of particles within the larvae after injection during the blastula stage. This is in contrast to injection of PS particles in the yolk of 2-day old embryos, which resulted in redistribution of the PS particles throughout the bloodstream, and accumulation in the heart region. Although injection was local, the transcriptome profiling showed strong responses of zebrafish embryos exposed to PS particle, indicating a systemic response. We found several biological pathways activated which are related to an immune response in the PS exposed zebrafish larvae. Most notably the complement system was enriched as indicated by upregulation of genes in the alternative complement pathway (e.g. cfhl3, cfhl4, cfb and c9). The fact that complement pathway is activated indicates that plastic microparticles are integrated in immunological recognition processes. This was supported by fluorescence microscopy results, in which we observed co-localisation of neutrophils and macrophages around the PS particles. Identifying these key events can be a first building block to the development of an adverse outcome pathway (AOP). These data subsequently can be used within ecological and human risk assessment.

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  1. Janeway, C.A., Travers, P., Walport, M., Shlomchik, M.J., 2001. Immunobiology, 5th edition. Garland Science, New York, USA. http://refhub.elsevier.com/S0166-445X(1730168-6/sbref0075)

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Authors
Veneman, W. J., Spaink, H. P., Brun, N. R., Bosker, T., & Vijver, M. G.
Affiliations
Leiden University (NL)
Corresponding author
Vijver, Martina G.
Venue
Aquatic Toxicology
Publisher
Elsevier BV
Published
2017-09
Volume
190
Pages
112-120
ISSN
0166-445X (ISSN-L)
OpenAlex
W2725794579
Cited by
204
References
45
Citations by year
2026: 9 · 2025: 25 · 2024: 25 · 2023: 32 · 2022: 29 · 2021: 36 · 2020: 25 · 2019: 14 · 2018: 8 · 2017: 1
FWCI
5.92
Type
journal article
Language
en
Locations
  • Aquatic Toxicology (publishedVersion)
  • PubMed (publishedVersion)
  • Leiden Repository (Leiden University) (submittedVersion)
  • Data Archiving and Networked Services (DANS) (submittedVersion)
Funders
  • NWO VIDI Project
  • Gratama Foundation of the Leiden University Fund
Topics
  • Physical Sciences › Environmental Science › Pollution › Microplastics and Plastic Pollution
  • Physical Sciences › Environmental Science › Health, Toxicology and Mutagenesis › Environmental Toxicology and Ecotoxicology
  • Physical Sciences › Environmental Science › Pollution › Pharmaceutical and Antibiotic Environmental Impacts
Keywords
microplastics, polystyrene particles, zebrafish larvae, complement system, alternative complement pathway, immune response, blastula stage, neutrophils, macrophages, adverse outcome pathways, risk assessment
MeSH terms
Animals, Larva, Particle Size, Polystyrenes, Tissue Distribution, Water Pollutants, Chemical, Zebrafish, Gene Expression Profiling, Transcriptome

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