Aflatoxin M1 cytotoxicity against human intestinal Caco-2 cells is enhanced in the presence of other mycotoxins
文献类型: 外文期刊
第一作者: Gao, Y. N.
作者: Gao, Y. N.;Wang, J. Q.;Li, S. L.;Zhang, Y. D.;Zheng, N.;Gao, Y. N.;Wang, J. Q.;Li, S. L.;Zhang, Y. D.;Zheng, N.
作者机构:
关键词: Mycotoxin;Co-contamination;Cytotoxicity;Human colon adenocarcinoma cells
期刊名称:FOOD AND CHEMICAL TOXICOLOGY ( 影响因子:6.023; 五年影响因子:5.844 )
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收录情况: SCI
摘要: Aflatoxin M1 (AFM1), a class 2B human carcinogen, is the only mycotoxin with established maximum residue limits (MRLs) in milk. Toxicological data for other mycotoxins in baby food, containing cereals and milk, either in isolation or in combination with AFM1, are sparse. The aim of this study was to investigate the cytotoxicity of AFM1, ochratoxin A (OTA), zearalenone (ZEA), and alpha-zearalenol (alpha-ZOL), individually and in combinations, in human Caco-2 cells. The tetrazolium salt (MU) assay demonstrated that (i) OTA and AFM1 had similar cytotoxicity, which was higher than that of ZEA and alpha-ZOL, after a 72 h exposure; and (ii) the quaternary combination had the highest cytotoxicity, followed by tertiary and binary combinations and individual mycotoxins. Isobologram analysis indicated that the presence of OTA, ZEA, and/or alpha-ZOL with AFM1 led to additive and synergistic cytotoxicity in most combinations. The cytotoxicity of OTA was similar to that of AFM1, suggesting that OTA in food poses a health risk to consumers. Furthermore, AFM1 cytotoxicity increased dramatically in the presence of OTA, ZEA, and/or alpha-ZOL (p < 0.01), indicating that the established MRLs for AFM1 should be re-evaluated considering its frequent co-occurrence with other mycotoxins in baby food which contains milk and cereals. (C) 2016 Elsevier Ltd. All rights reserved.
分类号: R99
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