Journal
ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY
Volume 67, Issue -, Pages 29-34Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.etap.2019.01.010
Keywords
Caenorhabditis elegant; Engineered nanoparticles; Intestinal permeability; Neurotoxicity; Oxidative stress
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The wide-spread implementation of nanoparticles poses a major health concern. Unique biokinetics allow them to transfer to neurons throughout the body and inflict neurotoxicity, which is challenging to evaluate solely in mammalian experimental models due to logistics, financial and ethical limitations. In recent years, the nematode Caenorhabditis elegant has emerged as a promising nanotoxicology experimental surrogate due to characteristics such as ease of culture, short life cycle and high number of progeny. Most importantly, this model organism has a well conserved and fully described nervous system rendering it ideal for use in neurotoxicity assessment of nanoparticles. In that context, this mini review aims to summarize the main mechanistic findings on nanoparticle related neurotoxicity in the setting of Caenorhabditis elegant screening. The injury pathway primarily involves changes in intestinal permeability and defecation frequency both of which facilitate translocation at the site of neurons, where toxicity formation is linked partly to oxidative stress and perturbed neurotransmission.
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