Issue 95, 2015

Causal inference methods to assist in mechanistic interpretation of classification nano-SAR models

Abstract

Knowledge about the toxicity of nanomaterials and factors responsible for such phenomena are important tasks necessary for efficient human health protection and safety risk estimation associated with nanotechnology. In this study, the causation inference method within structure-activity relationship modeling for nanomaterials was introduced to elucidate the underlying structure of the nanotoxicity data. As case studies, the structure-activity relationships for toxicity of metal oxide nanoparticles (nano-SARs) towards BEAS-2B and RAW 264.7 cell lines were established. To describe the nanoparticles, the simple ionic, fragmental and “liquid drop model” based descriptors that represent the nanoparticles' structure and characteristics were applied. The developed classification nano-SAR models were validated to confirm reliability of predicting toxicity for all studied metal oxide nanoparticles. Developed models suggest different mechanisms of nanotoxicity for the two types of cells.

Graphical abstract: Causal inference methods to assist in mechanistic interpretation of classification nano-SAR models

Supplementary files

Article information

Article type
Paper
Submitted
15 Jun 2015
Accepted
07 Sep 2015
First published
08 Sep 2015

RSC Adv., 2015,5, 77739-77745

Author version available

Causal inference methods to assist in mechanistic interpretation of classification nano-SAR models

N. Sizochenko, B. Rasulev, A. Gajewicz, E. Mokshyna, V. E. Kuz'min, J. Leszczynski and T. Puzyn, RSC Adv., 2015, 5, 77739 DOI: 10.1039/C5RA11399G

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