Journal
ENVIRONMENTAL POLLUTION
Volume 271, Issue -, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.envpol.2020.116368
Keywords
ATP-Binding cassette; ABCB; ABCC2; Mitochondrial activity; Molecular docking; Cell line
Categories
Funding
- Coordenacao de aperfeicoamento de Pessoal de Nivel Superior (CAPES) [001]
- National Institute of Science and Technology-Aquatic Toxicology from Conselho Nacional de Desenvolvimento Cientifico e Tecnologico [573949/2008-5]
- Brazilian CNPq [311806/2017-1]
Ask authors/readers for more resources
This study revealed that triclosan is cytotoxic to zebrafish hepatocytes, causing impaired mitochondria function, plasma membrane rupture, and increased apoptosis, while also inhibiting ABC proteins activity. Molecular docking showed high affinity between triclosan and tested ABC proteins, particularly with ABCC2.
Chemicals such as triclosan are a concern because of their presence on daily products (soap, deodorant, hand sanitizers ...), consequently this compound has an ubiquitous presence in the environment. Little is known about the effect of this bactericide on aquatic life. The aim of this study is to analyze triclosan exposure (24 h) to an in vitro model, zebrafish hepatocytes cell line (ZF-L), if it can be cytotoxic (mitochondria) activity, membrane stability and apoptosis) and if can activate ATP-binding cassette (ABC) proteins (activity, expression and protein/compound affinity). Triclosan was cytotoxic to hepatocytes when exposed to concentrations (1-4 mg/L). The results showed impaired mitochondria function, as well, plasma membrane rupture and an increase of apoptotic cells. We observed an ABC proteins activity inhibition in cells exposed to 0.5 and 1 mg/L. When ABCBs and ABCC2 proteins expression were analyzed, there was an increase of protein expression in both ABC proteins families on cells exposed to 1 mg/L of triclosan. On molecular docking results, triclosan and the fluorescent used as substrate (rhodamine) presented high affinity with all ABC proteins family tested, showing a greater affinity with ABCC2. In conclusion, this study showed that triclosan can be cytotoxic to ZF-L. Molecular docking indicated high affinity between triclosan and the tested pumps. (C) 2020 Elsevier Ltd. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available