Gene expression profile changes induced by acute toxicity of [C16 mim]Cl in loach (Paramisgurnus dabryanus)

Environmental Toxicology
Ping NanZhongjie Chang

Abstract

Ionic liquids (ILs) are widely used as reaction media in various commercial applications. Many reports have indicated that most ILs are poorly decomposed by microorganisms and are toxic to aquatic organisms. In this study, differential gene expression profiling was conducted using a suppression subtraction hybridization cDNA library from hepatic tissue of the loach (Paramisgurnus dabryanus) after exposure to 1-hexadecyl-3-methylimidazolium chloride ([C16 mim]Cl), a representative IL. Two hundred and fifty-nine differentially expressed candidate genes, whose expression was altered by >2.0-fold by the [C16 mim]Cl treatment, were identified, including 127 upregulated genes and 132 downregulated genes. A gene ontology analysis of the known genes isolated in this study showed that [C16 mim]Cl-responsive genes were involved in cell cycle, stimulus response, defense response, DNA damage response, oxidative stress responses, and other biological responses. To identify candidate genes that may be involved in [C16 mim]Cl-induced toxicity, 259 clones were examined by Southern blot macroarray hybridization, and 20 genes were further characterized using quantitative real-time polymerase chain reaction. Finally, six candidate genes were sele...Continue Reading

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Jan 27, 2017·Chemical Reviews·Ksenia S EgorovaValentine P Ananikov

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