Zebrafish larva as a reliable model for in vivo assessment of membrane remodeling involvement in the hepatotoxicity of chemical agents. Issue 6 (28th November 2016)

• Record Type: Journal Article
• Authors: Podechard, Normand; Chevanne, Martine; Fernier, Morgane; Tête, Arnaud; Collin, Aurore; Cassio, Doris; Kah, Olivier; Lagadic‐Gossmann, Dominique; Sergent, Odile
• Is Part Of: Journal of applied toxicology. Volume 37:Issue 6(2017)
• Page Start: 732
• Page End: 746
• Publication Date: 2016-11-28
• Subjects: zebrafish larva -- in vivo model -- membrane remodeling -- hepatotoxicity -- chemical agents; Toxicology -- Periodicals; Industrial toxicology -- Periodicals; Environmentally induced diseases -- Periodicals; Toxicology -- Periodicals; 615.9005
• DOI: 10.1002/jat.3421
• Languages: English
• ISSNs: 0260-437X

Abstract

Abstract: The easy‐to‐use in vivo model, zebrafish larva, is being increasingly used to screen chemical‐induced hepatotoxicity, with a good predictivity for various mechanisms of liver injury. However, nothing is known about its applicability in exploring the mechanism called membrane remodeling, depicted as changes in membrane fluidity or lipid raft properties. The aim of this study was, therefore, to substantiate the zebrafish larva as a suitable in vivo model in this context. Ethanol was chosen as a prototype toxicant because it is largely described, both in hepatocyte cultures and in rodents, as capable of inducing a membrane remodeling leading to hepatocyte death and liver injury. The zebrafish larva model was demonstrated to be fully relevant as membrane remodeling was maintained even after a 1‐week exposure without any adaptation as usually reported in rodents and hepatocyte cultures. It was also proven to exhibit a high sensitivity as it discriminated various levels of cytotoxicity depending on the extent of changes in membrane remodeling. In this context, its sensitivity appeared higher than that of WIF‐B9 hepatic cells, which is suited for analyzing this kind of hepatotoxicity. Finally, the protection afforded by a membrane stabilizer, ursodeoxycholic acid (UDCA), or by a lipid raft disrupter, pravastatin, definitely validated zebrafish larva as a reliable model to quickly assess membrane remodeling involvement in chemical‐induced hepatotoxicity. In conclusion, this model, compatible with a high throughput screening, might be adapted to seek hepatotoxicants via membrane remodeling, and also drugs targeting membrane features to propose new preventive or therapeutic strategies in chemical‐induced liver diseases. Copyright © 2016 John Wiley & Sons, Ltd. Abstract : The easy‐to‐use in vivo model, zebrafish larva, is increasingly used to screen chemical‐induced hepatotoxicity. However, nothing is known about its applicability in exploring the mechanism called membrane remodeling, depicted as changes in membrane fluidity or lipid raft properties. Its suitability and sensitivity were demonstrated by the ability to maintain membrane remodeling after 1 week of ethanol exposure, and by alleviating or enhancing ethanol‐induced hepatotoxicity after membrane manipulation with membrane stabilizer, lipid raft disrupter or stimulator of lipid raft clustering.