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Metabolomics and Lipidomics Reveal the Metabolic Disorders Induced by Single and Combined Exposure of Fusarium Mycotoxins in IEC-6 Cells

文献类型： 外文期刊

作者： Wang, Xinlu 1 ; Xu, Yanyang 2 ; Yu, Haiqi 1 ; Lu, Yushun 2 ; Qian, Yongzhong 2 ; Wang, Meng 1 ;

作者机构： 1.Beijing Acad Agr & Forestry Sci, Inst Qual Stand & Testing Technol, Beijing 100097, Peoples R China

2.Chinese Acad Agr Sci, Inst Qual Stand & Testing Technol Agroprod, Key Lab Agrifood Qual & Safety, Minist Agr & Rural Affairs, Beijing 100081, Peoples R China

关键词： fusarium mycotoxins; combined toxicity; IEC-6 cells; metabolomics; lipidomics

期刊名称：FOODS （ 影响因子：5.1； 五年影响因子：5.6 ）

ISSN：

年卷期： 2025 年 14 卷 2 期

页码：

收录情况： SCI

摘要： Deoxynivalenol (DON), fumonisin B-1 (FB1), and zearalenone (ZEN) are typical fusarium mycotoxins that occur worldwide in foodstuffs, posing significant health hazards to humans and animals. Single and combined exposure of DON, FB1, and ZEN leads to intestinal toxicity but the toxicology mechanism research is still limited. In this study, we explored the cytotoxicity effects of DON, FB1, ZEN, and their combination in rat intestinal epithelial cell line 6 (IEC-6) cells. Cell viability results showed that the cytotoxicity potency ranking was DON > ZEN > FB1. Furthermore, both DON + FB1 and DON + ZEN presented synergism to antagonism effects based on a combination index (CI)-isobologram equation model. Integrated metabolomics and lipidomics was adopted to explore cell metabolism disorders induced by fusarium mycotoxin exposure. A total of 2011 metabolites and 670 lipids were identified. An overlap of 37 and 62 differential compounds was confirmed after single and combined mycotoxin exposure by multivariate analysis, respectively. Some of the differential compounds were endocellular antioxidants and were significantly downregulated in mycotoxin exposure groups, indicating metabolic disorders as well as antioxidant capacity damage in cells. Pathway enrichment analysis annotated ethanol metabolism production of ROS by CYP2E1 was mainly involved in the disturbance of DON, FB1, and ZEN. The results obtained in this study help to define the toxicity effects of DON, FB1, and ZEN singly and in co-existence, providing an important scientific basis for combined risk recognition of mycotoxin contamination.

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