Hepatic lipid metabolism disorders and immunotoxicity induced by cysteamine in early developmental stages of zebrafish.
Cysteamine
Inflammation
Lipid metabolism
Liver
Pantetheinase
Zebrafish
Journal
Toxicology
ISSN: 1879-3185
Titre abrégé: Toxicology
Pays: Ireland
ID NLM: 0361055
Informations de publication
Date de publication:
07 2023
07 2023
Historique:
received:
16
04
2023
revised:
13
05
2023
accepted:
23
05
2023
medline:
16
6
2023
pubmed:
27
5
2023
entrez:
26
5
2023
Statut:
ppublish
Résumé
Cysteamine, a sulfhydryl compound, is an intermediate in the metabolism of coenzyme A to taurine in living organisms. However, the potential side effects of cysteamine such as hepatotoxicity in pediatric patients have been reported in some studies. To evaluate the impact of cysteamine on infants and children, larval zebrafish (a vertebrate model) were exposed to 0.18, 0.36 and 0.54 mM cysteamine from 72 hpf to 144 hpf. Alterations in general and pathological evaluation, biochemical parameters, cell proliferation, lipid metabolism factors, inflammatory factors and Wnt signaling pathway levels were examined. Increased liver area and lipid accumulation were observed in liver morphology, staining and histopathology in a dose-dependent manner with cysteamine exposure. In addition, the experimental cysteamine group exhibited higher alanine aminotransferase, aspartate aminotransferase, total triglyceride and total cholesterol levels than the control group. Meanwhile, the levels of lipogenesis-related factors ascended whereas lipid transport-related factors descended. Oxidative stress indicators such as reactive oxygen species, MDA and SOD were upregulated after cysteamine exposure. Afterwards, transcription assays revealed that biotinidase and Wnt pathway-related genes were upregulated in the exposed group, and inhibition of Wnt signaling partially rescued the abnormal liver development. The current study found that cysteamine-induced hepatotoxicity in larval zebrafish is due to inflammation and abnormal lipid metabolism, which is mediated by biotinidase (a potential pantetheinase isoenzyme) and Wnt signaling. This provides a perspective on the safety of cysteamine administration in children and identifies potential targets for protection against adverse reactions.
Identifiants
pubmed: 37236339
pii: S0300-483X(23)00141-5
doi: 10.1016/j.tox.2023.153555
pii:
doi:
Substances chimiques
Cysteamine
5UX2SD1KE2
Biotinidase
EC 3.5.1.12
Triglycerides
0
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
153555Informations de copyright
Copyright © 2023 Elsevier B.V. All rights reserved.
Déclaration de conflit d'intérêts
Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.