Molecular Toxicity Identification Evaluation (mTIE) Approach Predicts Chemical Exposure in Daphnia magna SCIE SCOPUS

Cited 23 time in WEB OF SCIENCE Cited 0 time in Scopus
Title
Molecular Toxicity Identification Evaluation (mTIE) Approach Predicts Chemical Exposure in Daphnia magna
Author(s)
Antczak, Philipp; Jo, Hun Je; Woo, Seonock; Scanlan, Leona; Poynton, Helen; Loguinov, Alex; Chan, Sarah; Falciani, Francesco; Vulpe, Chris
Publication Year
2013-10-15
Abstract
Daphnia magna is a bioindicator organism accepted by several international water quality regulatory agencies. Current approaches for assessment of water quality rely on acute and chronic toxicity that provide no insight into the cause of toxicity. Recently, molecular approaches, such as genome wide gene expression responses, are enabling an alternative mechanism based approach to toxicity assessment. While these genomic methods are providing important mechanistic insight into toxicity, statistically robust prediction systems that allow the identification of chemical contaminants from the molecular response to exposure are needed. Here we apply advanced machine learning approaches to develop predictive models of contaminant exposure using a D. magna gene expression data set for 36 chemical exposures. We demonstrate here that we can discriminate between chemicals belonging to different chemical classes including endocrine disruptors and inorganic and organic chemicals based on gene expression. We also show that predictive models based on indices of whole pathway transcriptional activity can achieve comparable results while facilitating biological interpretability.
ISSN
0013-936X
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/3082
DOI
10.1021/es402819c
Bibliographic Citation
ENVIRONMENTAL SCIENCE & TECHNOLOGY, v.47, no.20, pp.11747 - 11756, 2013
Publisher
AMER CHEMICAL SOC
Subject
ENDOCRINE DISRUPTION; VARIABLE SELECTION; RESPONSES; PATHWAY; ECOTOXICOGENOMICS; BIOMARKER; PROFILES; CADMIUM; MARINE; MODELS
Type
Article
Language
English
Document Type
Article
Publisher
AMER CHEMICAL SOC
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