Sensitivity of Zebrafish Embryogenesis to Risk of Fotemustine Exposure

Author:

Di Paola DavideORCID,Iaria CarmeloORCID,Lanteri GiovanniORCID,Cordaro MarikaORCID,Crupi RosaliaORCID,Siracusa RosalbaORCID,D’Amico RamonaORCID,Fusco RobertaORCID,Impellizzeri DanielaORCID,Cuzzocrea SalvatoreORCID,Spanò NunziacarlaORCID,Gugliandolo EnricoORCID,Peritore AlessioORCID

Abstract

Several anthropogenic products in wastewater are considered a threat to the aquatic environment. In addition to common industrial pollutants, levels of pharmaceuticals have been increasingly found in the environment in recent years, which may present a strong risk to the aquatic species that live there. The constant consumption of biologically active chemicals for human health has been matched by an increase in the leaking of these compounds in natural habitats over the last two decades. This study is aimed at evaluating the developmental toxicity of fotemustine in the ecological environment. Zebrafish embryos were exposed to doses of 25, 50 and 100 µg/mL from 4 h post-fertilization to 120 h. This study confirms that fotemustine exposure at 50 and 100 µg/mL affects the survival and hatching rate, morphology score and body length. Additionally, it significantly disturbs the antioxidant defense system and increases ROS in zebrafish larvae. From the molecular point of view, fotemustine exposure strongly induces apoptosis, endoplasmic reticulum stress (ERS) and the Wnt signaling pathway.

Publisher

MDPI AG

Subject

Ecology,Aquatic Science,Ecology, Evolution, Behavior and Systematics

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