Fumonisin B₁ Induces Oxidative Stress and Breaks Barrier Functions in Pig Iliac Endothelium Cells

• Main Authors: Qiaoling Yuan, Yancheng Jiang, Ying Fan, Yingfeng Ma, Hongyu Lei, Jianming Su
• Format: Article
• Language: English
• Published: MDPI AG 2019-07-01
• Series: Toxins
• Subjects: Fumonisin B₁; pig iliac endothelial cells; oxidative stress; tight junction
• Online Access: https://www.mdpi.com/2072-6651/11/7/387

Fumonisins (Fums) are types of mycotoxin that widely contaminante feed material crops, and can trigger potential biological toxicities to humans and various animals. However, the toxicity of Fums on porcine blood vessels has not been fully explored. Fumonisin B₁ (FB₁) is the main component of Fums. Therefore, the aim of this study was to explore the effects of FB₁ on the oxidative stress and tight junctions of the pig iliac endothelial cells (PIECs) in vitro. The results showed that FB₁ reduced the viability of PIECs, increased the contents of lipid peroxidation product malondialdehyde (MDA), decreased the activities of antioxidant enzymes superoxide dismutase (SOD), glutathione peroxidase (GSH-Px), catalase (CAT) and thioredoxin reductase (TrxR), and decreased the level of glutathione (GSH). In addition, the barrier functions were destroyed, along with the down-regulations on Claudin 1, Occludin and ZO-1 and the increase of paracellular permeability. Thus, this research indicates that FB₁ facilitates oxidative stress and breaks barrier functions to damage pig iliac endothelium cells.