Journal article
Multiparametric Profiling of Engineered Nanomaterials: Unmasking the Surface Coating Effect
Karolinska Institutet1
Finnish Institute of Occupational Health2
Tampere University3
University of Eastern Finland4
National Food Institute, Technical University of Denmark5
Research group for Nano-Bio Science, National Food Institute, Technical University of Denmark6
University of Manchester7
University of Bordeaux8
Royal College of Surgeons in Ireland9
University of Plymouth10
...and 0 moreDespite considerable efforts, the properties that drive the cytotoxicity of engineered nanomaterials (ENMs) remain poorly understood. Here, the authors inverstigate a panel of 31 ENMs with different core chemistries and a variety of surface modifications using conventional in vitro assays coupled with omics‐based approaches.
Cytotoxicity screening and multiplex‐based cytokine profiling reveals a good concordance between primary human monocyte‐derived macrophages and the human monocyte‐like cell line THP‐1. Proteomics analysis following a low‐dose exposure of cells suggests a nonspecific stress response to ENMs, while microarray‐based profiling reveals significant changes in gene expression as a function of both surface modification and core chemistry.
Pathway analysis highlights that the ENMs with cationic surfaces that are shown to elicit cytotoxicity downregulated DNA replication and cell cycle responses, while inflammatory responses are upregulated. These findings are validated using cell‐based assays. Notably, certain small, PEGylated ENMs are found to be noncytotoxic yet they induce transcriptional responses reminiscent of viruses.
In sum, using a multiparametric approach, it is shown that surface chemistry is a key determinant of cellular responses to ENMs. The data also reveal that cytotoxicity, determined by conventional in vitro assays, does not necessarily correlate with transcriptional effects of ENMs.
Language: | English |
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Publisher: | John Wiley and Sons Inc. |
Year: | 2020 |
Pages: | 2002221 |
ISSN: | 21983844 |
Types: | Journal article |
DOI: | 10.1002/advs.202002221 |
ORCIDs: | 0000-0001-5559-8482 and Löschner, Katrin |