Toxicogenomic applications of Chinese rare minnow (Gobiocypris rarus) in aquatic toxicology

Rare minnow (Gobiocypris rarus), a Chinese native species, are an excellent emerging model organism for aquatic toxicity testing and chemical safety assessment. “Big data” omics approaches (i.e., genomics, proteomics, and metabolomics) to inform mechanistic toxicology are now applied to studies in rare minnows to better understand toxicity and molecular pathways perturbed by chemicals. This review highlights recent applications of toxicogenomics to study changes in the gene and protein expression profiles in rare minnows in response to chemicals. The authors briefly describe studies that utilised cDNA microarrays in characterisation of the cellular effects of rare minnows in single and mixed chemical exposures. Then gel-based proteomics studies in liver of rare minnows following treatment with endocrine disrupting chemicals including 17?-oestradiol, 17?-methyltestosterone, pentachlorophenol, and perfluorooctanoic acid were compared. A total of 90 proteins identified in these studies were functionally annotated and categorized. These responsive proteins have roles in biological processes that include metabolism (37.8%), response to oxidation/chemicals (16.7%), signal transduction (11.1%), transport (10%), cytoskeleton (6.7%) and others (17.8%). In addition, recent investigations of endocrine disrupting effects and neurotoxicity of benzotriazole, an emerging contaminant, are summarised. The objective is to continue to enrich genome and protein databases for this species and to integrate molecular datasets to consider temporal effects and complex regulation at the level of the genome and proteome.

Authors: Liang X, Zha J. ;Full Source: Comparative Biochemistry and Physiology Part D Genomics Proteomics. 2016 Jun 21. pii: S1744-117X(16)30046-6. doi: 10.1016/j.cbd.2016.06.007. [fusion_builder_container hundred_percent=”yes” overflow=”visible”][fusion_builder_row][fusion_builder_column type=”1_1″ background_position=”left top” background_color=”” border_size=”” border_color=”” border_style=”solid” spacing=”yes” background_image=”” background_repeat=”no-repeat” padding=”” margin_top=”0px” margin_bottom=”0px” class=”” id=”” animation_type=”” animation_speed=”0.3″ animation_direction=”left” hide_on_mobile=”no” center_content=”no” min_height=”none”][Epub ahead of print] ;[/fusion_builder_column][/fusion_builder_row][/fusion_builder_container]