Label-free toxicology screening of primary human mesenchymal cells and iPS-derived neurons

PLoS One. 2018 Sep 4;13(9):e0201671. doi: 10.1371/journal.pone.0201671. eCollection 2018.

Abstract

The high-throughput, label-free Corning Epic assay has applications in drug discovery, pharmacogenomics, cell receptor signaling, cell migration, and viral titration. The utility of Epic technology for biocompatibility testing has not been well established. In manufacturing of medical devices, in vitro and in vivo biocompatibility assessments are mandatory, according to ISO 10993. The new medical device regulation MDR 745/2017 specifies that ex vivo assays that can closely recapitulate in vivo scenarios are needed to better evaluate biomedical devices. We propose herein that Epic technology-which enables detection of variations in cell mass distribution-is suitable for biocompatibility screening of compounds. In this study, we challenged primary human osteoblasts, endothelial cells, and neurons derived from induced pluripotent stem cells with specific concentrations of methyl methacrylate (MMA). Polymeric MMA has long been applied in cranioplasty, where it makes contact with multiple cell types. Application of Epic technology yielded real-time cytotoxicity profiles for all considered cell types. The results were compared with those from microscopic observation of the same culture plate used in the Epic analyses. The Epic assay should be further examined for its utility for cell biology, genomics, and proteomics companion assays. Our results suggest that Epic technology can be applied to biocompatibility evaluation of human cells in medical device development.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Cell Differentiation*
  • Drug Evaluation, Preclinical / instrumentation
  • Drug Evaluation, Preclinical / methods
  • Humans
  • Induced Pluripotent Stem Cells / metabolism*
  • Induced Pluripotent Stem Cells / pathology
  • Mesenchymal Stem Cells / metabolism*
  • Mesenchymal Stem Cells / pathology
  • Methylmethacrylate / toxicity*
  • Neurons / metabolism*
  • Neurons / pathology
  • Primary Cell Culture

Substances

  • Methylmethacrylate

Grants and funding

This work was funded by the Emilia Romagna region, POR-FESR 2014-2020, Asse 1, Azione 1.2.2, and project TECNO EN-P.