Transcriptome analysis of the effects of Cd and nanomaterial-loaded Cd on the liver in zebrafish

Ecotoxicology and Environmental Safety
Minling GaoZhengguo Song

Abstract

The wide application of engineered nanoparticles to remove heavy metals in aquatic environments has raised concerns over nanomaterial-adsorbed heavy metal toxicity. To ensure safe use of nanomaterial-heavy metal composites, understanding their biological effects at the molecular level is crucial. In the present study, we used the Illumina HiSeq technology to study the transcriptome changes induced by Cd2+ and nano-manganese dioxide- or nano-hydroxyapatite-adsorbed CdCl2 composites (nMnO2-Cd, nHAP20-Cd, and nHAP40-Cd) in zebrafish liver cells. We identified 545 differentially expressed genes (DEGs), 33 of which were in common between the nMnO2-Cd, nHAP20-Cd, and nHAP40-Cd groups. The DEGs could be classified in four categories: hydrolases (enzymes involved in various physiological functions, including digestion, immune response, blood coagulation, and reproduction), biological binding (FMN-, actin- and metal ion-binding), metabolic enzymes (e.g., ceramidase, alpha-amylase, carboxylic ester hydrolase, and carboxypeptidase), and cell structure (cell surface, intermediate filament, and muscle myopen protein). The DEGs identified in this study are potentially useful markers to understand the physiological responses induced by Cd2+ a...Continue Reading

Citations

Nov 27, 2019·Zebrafish·Urmila JagtapChetana Sachidanandan
Apr 24, 2020·Journal of Toxicology and Environmental Health. Part B, Critical Reviews·Ali KermanizadehVicki Stone
Sep 16, 2019·Journal of Environmental Management·Jun Feng SuQiong Wen
Aug 11, 2019·Ecotoxicology and Environmental Safety·Houjuan XingXiaohua Teng

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