Combining Cytotoxicity Assessment and Xenopus laevis Phenotypic Abnormality Assay as a Predictor of Nanomaterial Safety

Karamallah Al-Yousuf, Carl A. Webster, Grant N. Wheeler, Francesca Baldelli Bombelli, Victoria Sherwood (Lead / Corresponding author)

    Research output: Chapter in Book/Report/Conference proceedingChapter (peer-reviewed)peer-review

    1 Citation (Scopus)


    The African clawed frog, Xenopus laevis, has been used as an efficient preclinical screening tool to predict drug safety during the early stages of the drug discovery process. X. laevis is a relatively inexpensive model that can be used in whole organism high-throughput assays whilst maintaining a high degree of homology to the higher vertebrate models often used in scientific research. Despite an ever-increasing volume of biomedical nanoparticles (NPs) in development, their unique physico-chemical properties challenge the use of standard toxicology assays. Here, we present a protocol that directly compares the sensitivity of X. laevis development as a tool to assess potential NP toxicity by observation of embryo phenotypic abnormalities/lethality after NP exposure to in vitro cytotoxicity obtained using mammalian cell lines. In combination with conventional cytotoxicity assays, the X. laevis phenotypic assay provides accurate data to efficiently assess the safety of novel biomedical NPs.
    Original languageEnglish
    Title of host publicationCurrent Protocols in Toxicology
    PublisherJohn Wiley & Sons Inc.
    Number of pages33
    VolumeSupplement 73
    ISBN (Electronic)9780471140856
    Publication statusPublished - 4 Aug 2017


    • nanoparticles
    • nanotoxicity
    • physical-chemical characterization of nanoparticles
    • cytotoxicity
    • Xenopus laevis embryos

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