Changes in the metabolome and microRNA levels in biological fluids might represent biomarkers of neurotoxicity: A trimethyltin study.

Abstract:

Neurotoxicity has been linked with exposure to a number of common drugs and chemicals, yet efficient, accurate, and minimally invasive methods to detect it are lacking. Fluid-based biomarkers such as those found in serum, plasma, urine, and cerebrospinal fluid have great potential due to the relative ease of sampling but at present, data on their expression and translation are lacking or inconsistent. In this pilot study using a trimethyl tin rat model of central nervous system toxicity, we have applied state-of-the-art assessment techniques to identify potential individual biomarkers and patterns of biomarkers in serum, plasma, urine or cerebral spinal fluid that may be indicative of nerve cell damage and degeneration. Overall changes in metabolites and microRNAs were observed in biological fluids that were associated with neurotoxic damage induced by trimethyl tin. Behavioral changes and magnetic resonance imaging T2 relaxation and ventricle volume changes served to identify animals that responded to the adverse effects of trimethyl tin. Impact statement These data will help design follow-on studies with other known neurotoxicants to be used to assess the broad applicability of the present findings. Together this approach represents an effort to begin to develop and qualify a set of translational biochemical markers of neurotoxicity that will be readily accessible in humans. Such biomarkers could prove invaluable for drug development research ranging from preclinical studies to clinical trials and may prove to assist with monitoring of the severity and life cycle of brain lesions.

Read more here: Imam SZ et al. Changes in the metabolome and microRNA levels in biological fluids might represent biomarkers of neurotoxicity: A trimethyltin study. Exp Biol Med (Maywood). 2018 Feb;243(3):228-236

By |2018-06-27T16:11:13+00:00February 28th, 2018|Toxicology, Publications|Comments Off on Changes in the metabolome and microRNA levels in biological fluids might represent biomarkers of neurotoxicity: A trimethyltin study.

About the Author:

Professor Ruth A Roberts, PhD, ATS, FBTS, ERT, FRSB, FRCPath Director and Cofounder, ApconiX, UK and Chair and Director of Drug Discovery, University of Birmingham, UK Ruth is chair of drug discovery at Birmingham University, UK and Cofounder of ApconiX, an integrated toxicology and ion channel company that brings together a team of world-renowned nonclinical safety experts with over 400 years of drug discovery and development experience. Previously, Ruth was Global Head of Regulatory Safety at AstraZeneca and Director of Toxicology for Aventis. Ruth is an established science professional bringing rigorous expert thinking to toxicology, drug discovery and drug development. With >140 publications in peer reviewed journals, she is focused on reducing attrition attributable to safety and toxicity. A former president of the British Toxicology Society, former president of EUROTOX, former secretary to SOT and president elect of the Academy of Toxicological Sciences, Ruth was the recipient of the SOT Achievement award in 2002, the EUROTOX Bo Holmstedt Award in 2009 and the SOT Founders award in 2018 for outstanding leadership in toxicology.