SYP-3343 drives abnormal vascularization in zebrafish through regulating endothelial cell behavior. (April 2023)

• Record Type: Journal Article
• Authors: Chen, Guoliang; Liu, Juan; Wang, Huiyun; Wang, Mingxing; Wang, Guixue; Hu, Tingzhang
• Is Part Of: Food and chemical toxicology. Volume 174(2023)
• Publication Date: 2023-04
• Subjects: SYP-3343 -- Apoptosis -- Reactive oxygen species -- Vascular development -- Zebrafish; Toxicology -- Periodicals; Food poisoning -- Periodicals; Food Poisoning -- Periodicals; Toxicology -- Periodicals; Toxicologie -- Périodiques; Intoxications alimentaires -- Périodiques; Food poisoning; Toxicology; Periodicals; Electronic journals; 615.9
• DOI: 10.1016/j.fct.2023.113671
• Languages: English
• ISSNs: 0278-6915

Abstract

Abstract: SYP-3343 is a novel strobilurin fungicide with excellent and broad-spectrum antifungal activity, and its potential toxicity raises public health concerns. However, the vascular toxicity of SYP-3343 to zebrafish embryos is still not well understood. In the present study, we investigated the effects of SYP-3343 on vascular growth and its potential mechanism of action. SYP-3343 inhibited zebrafish endothelial cell (zEC) migration, altered nuclear morphology, and triggered abnormal vasculogenesis and zEC sprouting angiogenesis, resulting in angiodysplasia. RNA sequencing showed that SYP-3343 exposure altered the transcriptional levels of vascular development-related biological processes in zebrafish embryos including angiogenesis, sprouting angiogenesis, blood vessel morphogenesis, blood vessel development, and vasculature development. Whereas, the addition of NAC exerted an improvement effect on zebrafish vascular defects owing to SYP-3343 exposure. Additionally, SYP-3343 altered cell cytoskeleton and morphology, obstructed migration and viability, disrupted cell cycle progression, and depolarized mitochondrial membrane potential, as well as promoted apoptosis and reactive oxygen species (ROS) in HUVEC. SYP-3343 also caused an imbalance of the oxidation and antioxidant systems and irritated the alterations in the cell cycle- and apoptosis-related genes in HUVECs. Collectively, SYP-3343 has high cytotoxicity, possibly by up-regulating p53 and caspase3 expressions and bax/bcl-2 ratio via ROS, leading to malformed vascular development. Graphical abstract: Image 1 Highlights: SYP-3343 drives abnormally vascularization in zebrafish. SYP-3343 inhibits the migration of zebrafish endothelial cell. SYP-3343 induces changes in nucleic morphology of zebrafish endothelial cell. SYP-3343 irritates changes in vascular development-related biological processes. SYP-3343 provokes acute toxicity to human umbilical vein endothelial cells.