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Pöschl F, Höher T, Pirklbauer S, Wolinski H, Lienhart L, Ressler M, Riederer M. Dose and route dependent effects of the mycotoxin deoxynivalenol in a 3D gut-on-a-chip model with flow. Toxicol In Vitro 2023; 88:105563. [PMID: 36709839 DOI: 10.1016/j.tiv.2023.105563] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Revised: 12/22/2022] [Accepted: 01/23/2023] [Indexed: 01/28/2023]
Abstract
Deoxynivalenol (DON) is the most prevalent mycotoxin in human food and is ubiquitously detected in human bodyfluids. DON leads to intestinal barrier dysfunction, as observed from animal- and cell culture models with the known disadvantages. Here we present the effects of DON in a gut-on-a-chip model, as the first study incorporating the effects of intestinal flow. Using the OrganoPlate 3-lane, Caco-2 cells were seeded against an extracellular matrix (ECM) and formed leak tight tubules. DON was then applied in different concentrations (3 μM to 300 μM) via the apical or the basolateral channel. Permeability was assessed using continuous TEER and barrier integrity assays (BIA). Zonulin-1, toxicity (LDH) and proinflammatory status (IL-8) was analyzed. DON exposure led to a dose dependent decrease in para-and transcellular barrier integrity, which was more sensitive to basal than apical application (route). Timelaps/Continuous TEER measurements however revealed bidirectional effects, with even TEER-inducing effects of lower concentrations (until 10 μM). IL-8 secretion into luminal supernatants was only induced by apical DON. Attributed to the flow, the barrier-disintegrating effects of DON start at higher concentrations than in other culture models. The barrier was more sensitive to basolateral DON, even though DON had to pass the ECM; and IL-8 secretion was independent of TEER-alterations. Thus, the gut-on-a chip model might be a good alternative to further characterize the bidirectional effects of DON with reasonable throughput incorporating flow.
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Affiliation(s)
- Franziska Pöschl
- Institute of Biomedical Science, University of Applied Sciences, JOANNEUM, Graz, Austria.
| | - Theresa Höher
- Institute of Biomedical Science, University of Applied Sciences, JOANNEUM, Graz, Austria.
| | - Sarah Pirklbauer
- Institute of Biomedical Science, University of Applied Sciences, JOANNEUM, Graz, Austria.
| | - Heimo Wolinski
- Institute of Molecular Biosciences, BioTechMed-Graz, University of Graz, Graz, Austria.
| | - Lisa Lienhart
- Institute of Biomedical Science, University of Applied Sciences, JOANNEUM, Graz, Austria.
| | - Miriam Ressler
- Institute of Biomedical Science, University of Applied Sciences, JOANNEUM, Graz, Austria.
| | - Monika Riederer
- Institute of Biomedical Science, University of Applied Sciences, JOANNEUM, Graz, Austria.
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2
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Zhang Z, Fan K, Meng J, Nie D, Zhao Z, Han Z. Deoxynivalenol hijacks the pathway of Janus kinase 2/signal transducers and activators of transcription 3 (JAK2/STAT-3) to drive caspase-3-mediated apoptosis in intestinal porcine epithelial cells. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 864:161058. [PMID: 36565876 DOI: 10.1016/j.scitotenv.2022.161058] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Revised: 11/25/2022] [Accepted: 12/16/2022] [Indexed: 06/17/2023]
Abstract
Deoxynivalenol (DON) can easily injure the intestinal tract, which represents the first barrier against food contaminants. The intestinal toxicity induced by DON was mainly focused on mitogen-activated protein kinase (MAPK) activation, however, the underlying mechanisms by which DON triggers apoptosis by other pathways remain poorly understood. In this study, the Janus kinase 2/signal transducers and activators of transcription 3 (JAK2/STAT-3) pathway was proposed to regulate the intrinsic apoptosis induced by DON and thoroughly investigated in intestinal porcine epithelial cells (IPEC-J2). First, DON was found to be able to efficiently inhibit cell viability and increase the release of lactate dehydrogenase. It could also enhance the activity of the cleaved caspase-3 in a time-dependent manner, accompanied by a loss of mitochondrial membrane potential and an up-regulation of the apoptosis rate. Then, the expression of genes associated with inflammation and apoptosis were investigated. DON increased the expression of IL-6, IL-1β, TNF-α, SOCS3 and Bax, but decreased the expression of Bcl-2 and Bcl-xL. Moreover, we discovered that DON robustly inhibited STAT-3 activity together with the down-regulation of JAK2, Bcl-2 and Bcl-xL, paralleling the increase in p38 phosphorylation. Furthermore, a pharmacological activation of JAK2/STAT-3 alleviated DON induced-apoptosis. Concurrent with the apoptotic pathway, during the initial exposure to DON (first 4 h), a survival pathway involving phosphorylated Erk1/2, Akt, and FoxO1 was also observed. Thus, apoptosis induced by DON was Janus faced: although the survival pathway was activated, the DON-induced apoptotic JAK2/STAT-3/caspase-3 pathway dominated, leading to an imbalance in cell homeostasis. This study provides a novel avenue to comprehensively reveal the pathological mechanisms of DON-induced intestinal disorders, which is promising for future applications to other contaminants in food and feed.
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Affiliation(s)
- Zhiqi Zhang
- Institute for Agro-food Standards and Testing Technology, Shanghai Academy of Agricultural Sciences, Shanghai 201403, China
| | - Kai Fan
- Institute for Agro-food Standards and Testing Technology, Shanghai Academy of Agricultural Sciences, Shanghai 201403, China
| | - Jiajia Meng
- Institute for Agro-food Standards and Testing Technology, Shanghai Academy of Agricultural Sciences, Shanghai 201403, China
| | - Dongxia Nie
- Institute for Agro-food Standards and Testing Technology, Shanghai Academy of Agricultural Sciences, Shanghai 201403, China
| | - Zhihui Zhao
- Institute for Agro-food Standards and Testing Technology, Shanghai Academy of Agricultural Sciences, Shanghai 201403, China
| | - Zheng Han
- Institute for Agro-food Standards and Testing Technology, Shanghai Academy of Agricultural Sciences, Shanghai 201403, China.
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Zhuo Y, Yang P, Hua L, Zhu L, Zhu X, Han X, Pang X, Xu S, Jiang X, Lin Y, Che L, Fang Z, Feng B, Wang J, Li J, Wu D, Huang J, Jin C. Effects of Chronic Exposure to Diets Containing Moldy Corn or Moldy Wheat Bran on Growth Performance, Ovarian Follicular Pool, and Oxidative Status of Gilts. Toxins (Basel) 2022; 14:toxins14060413. [PMID: 35737074 PMCID: PMC9230446 DOI: 10.3390/toxins14060413] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2022] [Revised: 06/09/2022] [Accepted: 06/14/2022] [Indexed: 02/06/2023] Open
Abstract
Background: We investigated the effect of replacing normal corn (NC) or normal wheat bran (NW) with moldy corn (MC) or moldy wheat bran (MW) on growth, ovarian follicular reserves, and oxidative status. Methods: Sixty-three Landrace × Yorkshire gilts were assigned to seven diets formulated by using MC to replace 0% (control), 25% (25% MC), 50% (50% MC), 75% (75% MC), and 100% NC (100% MC), MW to replace 100% NW (100% MW), and MC and MW to replace 100% NC and 100% NW (100% MC + MW), from postnatal day 110 to day 19 of the second estrous cycle. Results: Feeding the gilts with MC or MW induced a lower average daily gain at days 29−56 of the experiment. Age at puberty remained unchanged, but MC inclusion resulted in a linear decrease in antral follicles with diameter >3.0 mm, and control gilts had a 12.7 more large antral follicles than gilts in the 100% MC + MW treatment. MC inclusion linearly decreased the numbers of primordial follicles, growing follicles, and corpora lutea, associated with a lower anti-Müllerian hormone level in serum and 17β-estradiol level in follicular fluid. MC inclusion decreased the serum concentrations of insulin-like growth factor 1 and its mRNA levels in the liver, combined with higher malondialdehyde concentration and lower total superoxide dismutase activities in serum and liver. Conclusion: Chronic exposure to MC-containing diets caused the loss of follicles, even if levels of deoxynivalenol, zearalenone, and aflatoxin B1 were below the levels allowed by China and Europe standards.
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Affiliation(s)
- Yong Zhuo
- Animal Nutrition Institute, Sichuan Agricultural University, Chengdu 611130, China; (Y.Z.); (P.Y.); (L.H.); (L.Z.); (X.Z.); (X.H.); (X.P.); (S.X.); (X.J.); (Y.L.); (L.C.); (Z.F.); (B.F.); (J.W.); (J.L.); (D.W.)
| | - Pu Yang
- Animal Nutrition Institute, Sichuan Agricultural University, Chengdu 611130, China; (Y.Z.); (P.Y.); (L.H.); (L.Z.); (X.Z.); (X.H.); (X.P.); (S.X.); (X.J.); (Y.L.); (L.C.); (Z.F.); (B.F.); (J.W.); (J.L.); (D.W.)
| | - Lun Hua
- Animal Nutrition Institute, Sichuan Agricultural University, Chengdu 611130, China; (Y.Z.); (P.Y.); (L.H.); (L.Z.); (X.Z.); (X.H.); (X.P.); (S.X.); (X.J.); (Y.L.); (L.C.); (Z.F.); (B.F.); (J.W.); (J.L.); (D.W.)
| | - Lei Zhu
- Animal Nutrition Institute, Sichuan Agricultural University, Chengdu 611130, China; (Y.Z.); (P.Y.); (L.H.); (L.Z.); (X.Z.); (X.H.); (X.P.); (S.X.); (X.J.); (Y.L.); (L.C.); (Z.F.); (B.F.); (J.W.); (J.L.); (D.W.)
- College of Animal Science and Technology, Sichuan Agricultural University, Chengdu 611130, China
| | - Xin Zhu
- Animal Nutrition Institute, Sichuan Agricultural University, Chengdu 611130, China; (Y.Z.); (P.Y.); (L.H.); (L.Z.); (X.Z.); (X.H.); (X.P.); (S.X.); (X.J.); (Y.L.); (L.C.); (Z.F.); (B.F.); (J.W.); (J.L.); (D.W.)
- College of Animal Science and Technology, Sichuan Agricultural University, Chengdu 611130, China
| | - Xinfa Han
- Animal Nutrition Institute, Sichuan Agricultural University, Chengdu 611130, China; (Y.Z.); (P.Y.); (L.H.); (L.Z.); (X.Z.); (X.H.); (X.P.); (S.X.); (X.J.); (Y.L.); (L.C.); (Z.F.); (B.F.); (J.W.); (J.L.); (D.W.)
| | - Xiaoxue Pang
- Animal Nutrition Institute, Sichuan Agricultural University, Chengdu 611130, China; (Y.Z.); (P.Y.); (L.H.); (L.Z.); (X.Z.); (X.H.); (X.P.); (S.X.); (X.J.); (Y.L.); (L.C.); (Z.F.); (B.F.); (J.W.); (J.L.); (D.W.)
| | - Shengyu Xu
- Animal Nutrition Institute, Sichuan Agricultural University, Chengdu 611130, China; (Y.Z.); (P.Y.); (L.H.); (L.Z.); (X.Z.); (X.H.); (X.P.); (S.X.); (X.J.); (Y.L.); (L.C.); (Z.F.); (B.F.); (J.W.); (J.L.); (D.W.)
| | - Xuemei Jiang
- Animal Nutrition Institute, Sichuan Agricultural University, Chengdu 611130, China; (Y.Z.); (P.Y.); (L.H.); (L.Z.); (X.Z.); (X.H.); (X.P.); (S.X.); (X.J.); (Y.L.); (L.C.); (Z.F.); (B.F.); (J.W.); (J.L.); (D.W.)
| | - Yan Lin
- Animal Nutrition Institute, Sichuan Agricultural University, Chengdu 611130, China; (Y.Z.); (P.Y.); (L.H.); (L.Z.); (X.Z.); (X.H.); (X.P.); (S.X.); (X.J.); (Y.L.); (L.C.); (Z.F.); (B.F.); (J.W.); (J.L.); (D.W.)
| | - Lianqiang Che
- Animal Nutrition Institute, Sichuan Agricultural University, Chengdu 611130, China; (Y.Z.); (P.Y.); (L.H.); (L.Z.); (X.Z.); (X.H.); (X.P.); (S.X.); (X.J.); (Y.L.); (L.C.); (Z.F.); (B.F.); (J.W.); (J.L.); (D.W.)
| | - Zhengfeng Fang
- Animal Nutrition Institute, Sichuan Agricultural University, Chengdu 611130, China; (Y.Z.); (P.Y.); (L.H.); (L.Z.); (X.Z.); (X.H.); (X.P.); (S.X.); (X.J.); (Y.L.); (L.C.); (Z.F.); (B.F.); (J.W.); (J.L.); (D.W.)
| | - Bin Feng
- Animal Nutrition Institute, Sichuan Agricultural University, Chengdu 611130, China; (Y.Z.); (P.Y.); (L.H.); (L.Z.); (X.Z.); (X.H.); (X.P.); (S.X.); (X.J.); (Y.L.); (L.C.); (Z.F.); (B.F.); (J.W.); (J.L.); (D.W.)
| | - Jianping Wang
- Animal Nutrition Institute, Sichuan Agricultural University, Chengdu 611130, China; (Y.Z.); (P.Y.); (L.H.); (L.Z.); (X.Z.); (X.H.); (X.P.); (S.X.); (X.J.); (Y.L.); (L.C.); (Z.F.); (B.F.); (J.W.); (J.L.); (D.W.)
| | - Jian Li
- Animal Nutrition Institute, Sichuan Agricultural University, Chengdu 611130, China; (Y.Z.); (P.Y.); (L.H.); (L.Z.); (X.Z.); (X.H.); (X.P.); (S.X.); (X.J.); (Y.L.); (L.C.); (Z.F.); (B.F.); (J.W.); (J.L.); (D.W.)
| | - De Wu
- Animal Nutrition Institute, Sichuan Agricultural University, Chengdu 611130, China; (Y.Z.); (P.Y.); (L.H.); (L.Z.); (X.Z.); (X.H.); (X.P.); (S.X.); (X.J.); (Y.L.); (L.C.); (Z.F.); (B.F.); (J.W.); (J.L.); (D.W.)
| | - Jiankui Huang
- Animal Nutrition Institute, Sichuan Agricultural University, Chengdu 611130, China; (Y.Z.); (P.Y.); (L.H.); (L.Z.); (X.Z.); (X.H.); (X.P.); (S.X.); (X.J.); (Y.L.); (L.C.); (Z.F.); (B.F.); (J.W.); (J.L.); (D.W.)
- Guangxi Shangda Technology, Co., Ltd., Guangxi Research Center for Nutrition and Engineering Technology of Breeding Swine, Nanning 530105, China
- Correspondence: (J.H.); (C.J.)
| | - Chao Jin
- Animal Nutrition Institute, Sichuan Agricultural University, Chengdu 611130, China; (Y.Z.); (P.Y.); (L.H.); (L.Z.); (X.Z.); (X.H.); (X.P.); (S.X.); (X.J.); (Y.L.); (L.C.); (Z.F.); (B.F.); (J.W.); (J.L.); (D.W.)
- Correspondence: (J.H.); (C.J.)
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4
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Li J, Wang Y, Deng Y, Wang X, Wu W, Nepovimova E, Wu Q, Kuca K. Toxic mechanisms of the trichothecenes T-2 toxin and deoxynivalenol on protein synthesis. Food Chem Toxicol 2022; 164:113044. [PMID: 35452771 DOI: 10.1016/j.fct.2022.113044] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2021] [Revised: 04/02/2022] [Accepted: 04/14/2022] [Indexed: 11/19/2022]
Abstract
The toxic mechanisms of trichothecenes, including T-2 toxin and deoxynivalenol (DON), are closely related with their effects on protein synthesis. Increasing lines of evidence show that T-2 toxin can reduce the levels of tight junction proteins, and nuclear factor erythroid 2-related factor 2 (Nrf2) by disrupting cellular barriers and the cyclic adenosine monophosphate (cAMP)-protein kinase A (PKA) and Nrf2/heme oxygenase (HO)-1 pathways. Moreover, it can inhibit aggrecan synthesis, thus causing Kashin-Beck disease. Regarding type B trichothecene, DON inhibits activation marker and β-catenin synthesis by acting on immune cells and the wingless/integrated (Wnt) pathway; it also inhibits cell proliferation and immune surveillance. In addition, DON has been shown to destroy tight junctions, glucose transport, and tumor endothelial marker 8, thus disturbing intestinal function and changing cell migration. This review summarizes the inhibitory effects of the trichothecenes T-2 toxin and DON on different protein synthesis, while discussing their underlying mechanisms. Focus is given to the effects of these toxins on tight junctions, aggrecan, activation markers, and hormones including testosterone under the influence of steroidogenic enzymes. This review can extend the current understanding of the effects of trichothecenes on protein synthesis and help to further understand their toxic mechanisms.
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Affiliation(s)
- Jiefeng Li
- College of Life Science, Yangtze University, Jingzhou, 434025, China
| | - Yating Wang
- College of Life Science, Yangtze University, Jingzhou, 434025, China
| | - Ying Deng
- College of Life Science, Yangtze University, Jingzhou, 434025, China
| | - Xu Wang
- National Reference Laboratory of Veterinary Drug Residues and MAO Key Laboratory for Detection of Veterinary Drug Residues, Huazhong Agricultural University (HZAU), Wuhan, Hubei, 430070, China
| | - Wenda Wu
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095, China; Department of Chemistry, Faculty of Science, University of Hradec Králové, 50003, Hradec Králové, Czech Republic
| | - Eugenie Nepovimova
- Department of Chemistry, Faculty of Science, University of Hradec Králové, 50003, Hradec Králové, Czech Republic
| | - Qinghua Wu
- College of Life Science, Yangtze University, Jingzhou, 434025, China; Department of Chemistry, Faculty of Science, University of Hradec Králové, 50003, Hradec Králové, Czech Republic.
| | - Kamil Kuca
- Department of Chemistry, Faculty of Science, University of Hradec Králové, 50003, Hradec Králové, Czech Republic; Biomedical Research Center, University Hospital Hradec Kralove, 500 05, Hradec Kralove, Czech Republic.
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Liu A, Guo M, He L, Martínez MA, Martínez M, Lopez-Torres B, Martínez-Larrañaga MR, Wang X, Anadón A, Ares I. Nicotinamide N-methyltransferase protects against deoxynivalenol-induced growth inhibition by suppressing pro-inflammatory cytokine expression. Food Chem Toxicol 2022; 163:112969. [PMID: 35351591 DOI: 10.1016/j.fct.2022.112969] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Revised: 02/22/2022] [Accepted: 03/24/2022] [Indexed: 11/19/2022]
Abstract
Deoxynivalenol (DON) is an inevitable contaminant in cereals for infants. Indeed, children's growth retardation caused by widespread DON pollution has become a global problem that cannot be ignored. Accumulating evidence has shown that DON stunts growth in children through pro-inflammatory cytokines. An exogenous increase of methylnicotinamide, a metabolite produced by nicotinamide N-methyltransferase (NNMT), has anti-inflammatory effects, but it is not clear whether NNMT has the same effect, and the role of NNMT in DON-induced inflammation and growth impairment remains indistinct. The present research reports that NNMT is an inflammatory self-protective factor in DON-exposed L02 cells. DON promoted the production of pro-inflammatory cytokines. Furthermore, DON increased NNMT to reduce pro-inflammatory cytokines, including interleukin (IL)-1β, IL-11 and IL-6, and thus increased IGF-1 and cell viability, alleviating the cell growth inhibition induced by DON. Interestingly, NNMT negatively regulated the expression of IL-1β through Sirtuin type 1 (SIRT1). Collectively, these findings provide new mechanistic insights into the toxicity of DON-induced growth retardation and inflammatory responses in children.
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Affiliation(s)
- Aimei Liu
- National Reference Laboratory of Veterinary Drug Residues (HZAU) and MAO Key Laboratory for Detection of Veterinary Drug Residues, Huazhong Agricultural University, Wuhan, Hubei, 430070, China; Hanxi Key Lab. for Modernization of TCVM, College of Veterinary Medicine, Shanxi Agricultural University, Taigu, 030801, Shanxi, China
| | - Mingyue Guo
- National Reference Laboratory of Veterinary Drug Residues (HZAU) and MAO Key Laboratory for Detection of Veterinary Drug Residues, Huazhong Agricultural University, Wuhan, Hubei, 430070, China
| | - Lixuan He
- MOA Laboratory for Risk Assessment of Quality and Safety of Livestock and Poultry Products, Hubei, 430070, China
| | - María-Aránzazu Martínez
- Department of Pharmacology and Toxicology, Faculty of Veterinary Medicine, Universidad Complutense de Madrid, Madrid, 28040, Spain
| | - Marta Martínez
- Department of Pharmacology and Toxicology, Faculty of Veterinary Medicine, Universidad Complutense de Madrid, Madrid, 28040, Spain
| | - Bernardo Lopez-Torres
- Department of Pharmacology and Toxicology, Faculty of Veterinary Medicine, Universidad Complutense de Madrid, Madrid, 28040, Spain
| | - María-Rosa Martínez-Larrañaga
- Department of Pharmacology and Toxicology, Faculty of Veterinary Medicine, Universidad Complutense de Madrid, Madrid, 28040, Spain
| | - Xu Wang
- National Reference Laboratory of Veterinary Drug Residues (HZAU) and MAO Key Laboratory for Detection of Veterinary Drug Residues, Huazhong Agricultural University, Wuhan, Hubei, 430070, China; MOA Laboratory for Risk Assessment of Quality and Safety of Livestock and Poultry Products, Hubei, 430070, China.
| | - Arturo Anadón
- Department of Pharmacology and Toxicology, Faculty of Veterinary Medicine, Universidad Complutense de Madrid, Madrid, 28040, Spain.
| | - Irma Ares
- Department of Pharmacology and Toxicology, Faculty of Veterinary Medicine, Universidad Complutense de Madrid, Madrid, 28040, Spain
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Jia B, Yu S, Yu D, Liu N, Zhang S, Wu A. Mycotoxin deoxynivalenol affects myoblast differentiation via downregulating cytoskeleton and ECM-integrin-FAK-RAC-PAK signaling pathway. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2021; 226:112850. [PMID: 34607188 DOI: 10.1016/j.ecoenv.2021.112850] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Revised: 09/27/2021] [Accepted: 09/28/2021] [Indexed: 06/13/2023]
Abstract
As a common mycotoxin, deoxynivalenol (DON) contaminates cereal grains and feed in field or during processing and storage. DON elicits a spectrum of adverse effects in animals including anorexia and growth retardation. Especially, the presence of DON has also been detected in muscle, suggesting that DON may has the potential to affect the development of muscle. However, the relevant research is very rare and the molecular mechanism remains unclear. Myoblasts differentiation into multinucleated myotubes is one of the crucial steps of skeletal muscle development. In the present study, we investigated the effects of DON on differentiation of myoblasts using murine C2C12 cells model. The results indicated that DON dose-dependent inhibited the formation of myotubes in C2C12 cells. After performing omics techniques, a total of 149 differentially expressed genes were identified. The expression of cytoskeleton proteins and extracellular matrix (ECM) proteins were downregulated by DON. Furthermore, DON significantly downregulated the expression of integrin αv and integrin β5, leading to inhibition of the ECM-integrin receptor interaction. The focal adhesion kinase (FAK) and phosphorylated forms, ras-related C3 botulinum toxin substrate (RAC) and p21-activated kinases 1 (PAK1) were also downregulated by DON. Taken together, our findings suggest that DON has the potent to affect the differentiation of myoblasts via downregulating of cytoskeleton and ECM-integrin-FAK-RAC-PAK signaling pathway.
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Affiliation(s)
- Bingxuan Jia
- SIBS-UGENT-SJTU Joint Laboratory of Mycotoxin Research, CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of Nutrition and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai 200031, China
| | - Song Yu
- SIBS-UGENT-SJTU Joint Laboratory of Mycotoxin Research, CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of Nutrition and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai 200031, China
| | - Dianzhen Yu
- SIBS-UGENT-SJTU Joint Laboratory of Mycotoxin Research, CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of Nutrition and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai 200031, China
| | - Na Liu
- SIBS-UGENT-SJTU Joint Laboratory of Mycotoxin Research, CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of Nutrition and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai 200031, China
| | - Shuo Zhang
- NHC Key Laboratory of Food Safety Risk Assessment, China National Center for Food Safety Risk Assessment, Beijing 100021, China
| | - Aibo Wu
- SIBS-UGENT-SJTU Joint Laboratory of Mycotoxin Research, CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of Nutrition and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai 200031, China.
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7
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Dänicke S, Heymann AK, Oster M, Wimmers K, Tesch T, Bannert E, Bühler S, Kersten S, Frahm J, Kluess J, Kahlert S, Rothkötter HJ, Billenkamp F. Does chronic dietary exposure to the mycotoxin deoxynivalenol affect the porcine hepatic transcriptome when an acute-phase response is initiated through first or second-pass LPS challenge of the liver? Innate Immun 2021; 27:388-408. [PMID: 34338001 PMCID: PMC8419296 DOI: 10.1177/17534259211030563] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
The sensitivity of pigs to deoxynivalenol (DON) might be increased by systemic inflammation (SI), which also has consequences for hepatic integrity. Liver lesions and a dys-regulated gene network might hamper hepatic handling and elimination of DON whereby the way of initiation of hepatic inflammation might play an additional role. First and second-pass exposure of the liver with LPS for triggering a SI was achieved by LPS infusion via pre- or post-hepatic venous route, respectively. Each infusion group was pre-conditioned either with a control diet (0.12 mg DON/kg diet) or with a DON-contaminated diet (4.59 mg DON/kg diet) for 4 wk. Liver transcriptome was evaluated at 195 min after starting infusions. DON exposure alone failed to modulate the mRNA expression significantly. However, pre- and post-hepatic LPS challenges prompted transcriptional responses in immune and metabolic levels. The mRNAs for B-cell lymphoma 2-like protein 11 as a key factor in apoptosis and IFN-γ released by T cells were clearly up-regulated in DON-fed group infused with LPS post-hepatically. On the other hand, mRNAs for nucleotide binding oligomerization domain containing 2, IFN-α and eukaryotic translation initiation factor 2α kinase 3 as ribosomal stress sensors were exclusively up-regulated in control pigs with pre-hepatic LPS infusion. These diverse effects were traced back to differences in TLR4 signalling.
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Affiliation(s)
- Sven Dänicke
- Institute of Animal Nutrition, Federal Research Institute for Animal Health, Friedrich-Loeffler-Institut, Germany
| | - Ann-Katrin Heymann
- Institute of Animal Nutrition, Federal Research Institute for Animal Health, Friedrich-Loeffler-Institut, Germany
| | - Michael Oster
- Institute of Genome Biology, Leibniz Institute for Farm Animal Biology (FBN), Germany
| | - Klaus Wimmers
- Institute of Genome Biology, Leibniz Institute for Farm Animal Biology (FBN), Germany
| | - Tanja Tesch
- Institute of Animal Nutrition, Federal Research Institute for Animal Health, Friedrich-Loeffler-Institut, Germany
| | - Erik Bannert
- Institute of Animal Nutrition, Federal Research Institute for Animal Health, Friedrich-Loeffler-Institut, Germany
| | - Susanne Bühler
- Institute of Animal Nutrition, Federal Research Institute for Animal Health, Friedrich-Loeffler-Institut, Germany
| | - Susanne Kersten
- Institute of Animal Nutrition, Federal Research Institute for Animal Health, Friedrich-Loeffler-Institut, Germany
| | - Jana Frahm
- Institute of Animal Nutrition, Federal Research Institute for Animal Health, Friedrich-Loeffler-Institut, Germany
| | - Jeannette Kluess
- Institute of Animal Nutrition, Federal Research Institute for Animal Health, Friedrich-Loeffler-Institut, Germany
| | - Stefan Kahlert
- Institute of Anatomy, Otto-von-Guericke University Magdeburg, Germany
| | | | - Fabian Billenkamp
- Institute of Animal Nutrition, Federal Research Institute for Animal Health, Friedrich-Loeffler-Institut, Germany
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8
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Gu C, Gao X, Guo D, Wang J, Wu Q, Nepovimova E, Wu W, Kuca K. Combined Effect of Deoxynivalenol (DON) and Porcine Circovirus Type 2 (Pcv2) on Inflammatory Cytokine mRNA Expression. Toxins (Basel) 2021; 13:toxins13060422. [PMID: 34199278 PMCID: PMC8231776 DOI: 10.3390/toxins13060422] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Revised: 06/07/2021] [Accepted: 06/10/2021] [Indexed: 12/02/2022] Open
Abstract
A host’s immune system can be invaded by mycotoxin deoxynivalenol (DON) poisoning and porcine circovirus type 2 (PCV2) infections, which affect the host’s natural immune function. Pro-inflammatory cytokines, IL-1β and IL-6, are important regulators in the process of natural immune response, which participate in inflammatory response and enhance immune-mediated tissue damage. Preliminary studies have shown that DON promotes PCV2 infection by activating the MAPK signaling pathway. Here, we explored whether the mRNA expression of IL-1β and IL-6, induced by the combination of DON and PCV2, would depend on the MAPK signaling pathway. Specific pharmacological antagonists U0126, SP600125 and SB203580, were used to inhibit the activities of ERK, JNK and p38 in the MAPK signaling pathway, respectively. Then, the mRNA expression of IL-1β and IL-6 in PK-15 cells was detected to explore the effect of the MAPK signaling pathway on IL-1β and IL-6 mRNA induced by DON and PCV2. The results showed that PK-15 cells treated with DON or PCV2 induced the mRNA expression of IL-1β and IL-6 in a time- and dose-dependent manner. The combination of DON and PCV2 has an additive effect on inducing the mRNA expression of IL-1β and IL-6. Additionally, both DON and PCV2 could induce the mRNA expression of IL-1β and IL-6 via the ERK and the p38 MAPK signal pathways, while PCV2 could induce it via the JNK signal pathway. Taken together, our results suggest that MAPKs play a contributory role in IL-1β and IL-6 mRNA expression when induced by both DON and PCV2.
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Affiliation(s)
- Chao Gu
- MOE Joint International Research Laboratory of Animal Health and Food Safety, Engineering Center of Innovative Veterinary Drugs, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, China; (C.G.); (X.G.); (D.G.)
| | - Xiuge Gao
- MOE Joint International Research Laboratory of Animal Health and Food Safety, Engineering Center of Innovative Veterinary Drugs, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, China; (C.G.); (X.G.); (D.G.)
| | - Dawei Guo
- MOE Joint International Research Laboratory of Animal Health and Food Safety, Engineering Center of Innovative Veterinary Drugs, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, China; (C.G.); (X.G.); (D.G.)
| | - Jiacai Wang
- Shandong Vocational Animal Science and Veterinary College, 88 Shengli East Street, Weifang 261061, China;
| | - Qinghua Wu
- Department of Chemistry, Faculty of Science, University of Hradec Králové, Rokitanského 62, 500 03 Hradec Kralove, Czech Republic; (Q.W.); (E.N.)
- College of Life Science, Yangtze University, Jingzhou 434025, China
| | - Eugenie Nepovimova
- Department of Chemistry, Faculty of Science, University of Hradec Králové, Rokitanského 62, 500 03 Hradec Kralove, Czech Republic; (Q.W.); (E.N.)
| | - Wenda Wu
- MOE Joint International Research Laboratory of Animal Health and Food Safety, Engineering Center of Innovative Veterinary Drugs, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, China; (C.G.); (X.G.); (D.G.)
- Department of Chemistry, Faculty of Science, University of Hradec Králové, Rokitanského 62, 500 03 Hradec Kralove, Czech Republic; (Q.W.); (E.N.)
- Correspondence: (W.W.); (K.K.)
| | - Kamil Kuca
- Department of Chemistry, Faculty of Science, University of Hradec Králové, Rokitanského 62, 500 03 Hradec Kralove, Czech Republic; (Q.W.); (E.N.)
- Biomedical Research Center, University Hospital Hradec Kralove, 500 03 Hradec Kralove, Czech Republic
- Correspondence: (W.W.); (K.K.)
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9
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Ookawara T, Aihara R, Morimoto A, Iwashita N, Kurata K, Takagi Y, Miyasaka A, Kushiro M, Miyake S, Fukuyama T. Acute and subacute oral toxicity of deoxynivalenol exposure in a Dermatophagoides farinae induced murine asthma model. Toxicol Sci 2020; 179:229-240. [PMID: 33170220 DOI: 10.1093/toxsci/kfaa168] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Previously, researchers have demonstrated that mycotoxin deoxynivalenol significantly enhances immunocyte activation. However, the interaction between deoxynivalenol exposure and immune disorders remains unclear. In this study, we aimed to investigate whether acute and subacute oral exposure to deoxynivalenol exacerbates the development of respiratory allergy using a mite allergen (Dermatophagoides farina, Derf)-induced mouse model of asthma. The direct relationship between deoxynivalenol exposure and asthma development was examined following acute oral deoxynivalenol administration (0, 0.1, or 0.3 mg/kg body weight), immediately before the final mite allergen challenge. Simultaneously, the influence of subacute oral exposure via low dose deoxynivalenol contaminated wheat (0.33 ppm) was evaluated using the same settings. To detect the pro-inflammatory effects of deoxynivalenol exposure, we examined the total and Derf-specific serum IgE levels, histology, number of immunocytes, and cytokine and chemokine secretion. Acute oral deoxynivalenol significantly enhanced the inflammatory responses, including cellular infiltration into bronchoalveolar lavage fluid, infiltration of immunocytes and cytokine production in local lymph nodes, and cytokine levels in lung tissues. Corresponding pro-inflammatory responses were observed in a mouse group exposed to subacute oral deoxynivalenol. In vivo results were validated by in vitro experiments using the human bronchial epithelial (BEAS-2B) and human eosinophilic leukemia (EOL-1) cell lines. Following exposure to deoxynivalenol, the secretion of interleukin (IL)-1β, IL-6, IL-8, and/or tumor necrosis factor (TNF)-α in BEAS-2B cells, as well as EoL-1 cells, increased significantly. Our findings indicate that deoxynivalenol exposure is significantly involved in the pro-inflammatory response observed in respiratory allergy.
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Affiliation(s)
- Toa Ookawara
- Laboratory of Veterinary Pharmacology, School of Veterinary Medicine, Azabu University, 1-17-71 Fuchinobe, Chuo-ku, Sagamihara-shi, Kanagawa, Japan
| | - Ryota Aihara
- Laboratory of Veterinary Pharmacology, School of Veterinary Medicine, Azabu University, 1-17-71 Fuchinobe, Chuo-ku, Sagamihara-shi, Kanagawa, Japan
| | - Ai Morimoto
- Laboratory of Veterinary Pharmacology, School of Veterinary Medicine, Azabu University, 1-17-71 Fuchinobe, Chuo-ku, Sagamihara-shi, Kanagawa, Japan
| | - Naoki Iwashita
- Laboratory of Veterinary Pharmacology, School of Veterinary Medicine, Azabu University, 1-17-71 Fuchinobe, Chuo-ku, Sagamihara-shi, Kanagawa, Japan.,Bioalchemis, 3-28-61 Honshuku-cho, Fuchu-shi, Tokyo, Japan
| | - Keigo Kurata
- Institute of Tokyo Environmental Allergy, ITEA Inc, 1-2-5, Yushima, Bunkyo-ku, Tokyo, Japan
| | - Yoshiichi Takagi
- Laboratory of Veterinary Pharmacology, School of Veterinary Medicine, Azabu University, 1-17-71 Fuchinobe, Chuo-ku, Sagamihara-shi, Kanagawa, Japan.,Japan SLC, Inc, 85 Ohara-cho, Kita-ku, Hamamatsu-shi, Shizuoka, Japan
| | - Atsushi Miyasaka
- Kyushu Okinawa Agricultural Research Center, National Agriculture and Food Research Organization (NARO), Suya 2421, Koshi, Kumamoto, Japan
| | - Masayo Kushiro
- Food Research Institute, National Agriculture and Food Research Organization (NARO), 2-1-12 Kannondai, Tsukuba, Ibaraki, Japan
| | - Shiro Miyake
- Laboratory of Food and Hygiene, School of Food and Life Science, Azabu University, 1-17-71 Fuchinobe, Chuo-ku, Sagamihara-shi, Kanagawa, Japan
| | - Tomoki Fukuyama
- Laboratory of Veterinary Pharmacology, School of Veterinary Medicine, Azabu University, 1-17-71 Fuchinobe, Chuo-ku, Sagamihara-shi, Kanagawa, Japan
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10
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Aihara R, Ookawara T, Morimoto A, Iwashita N, Takagi Y, Miyasaka A, Kushiro M, Miyake S, Fukuyama T. Acute and subacute oral administration of mycotoxin deoxynivalenol exacerbates the pro-inflammatory and pro-pruritic responses in a mouse model of allergic dermatitis. Arch Toxicol 2020; 94:4197-4207. [DOI: 10.1007/s00204-020-02875-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Accepted: 08/12/2020] [Indexed: 12/24/2022]
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11
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Moldal T, Bernhoft A, Rosenlund G, Kaldhusdal M, Koppang EO. Dietary Deoxynivalenol (DON) May Impair the Epithelial Barrier and Modulate the Cytokine Signaling in the Intestine of Atlantic Salmon ( Salmo salar). Toxins (Basel) 2018; 10:toxins10090376. [PMID: 30223534 PMCID: PMC6162859 DOI: 10.3390/toxins10090376] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2018] [Revised: 09/07/2018] [Accepted: 09/12/2018] [Indexed: 12/16/2022] Open
Abstract
Impaired growth, immunity, and intestinal barrier in mammals, poultry, and carp have been attributed to the mycotoxin deoxynivalenol (DON). The increased use of plant ingredients in aquaculture feed implies a risk for contamination with mycotoxins. The effects of dietary DON were explored in 12-month-old Atlantic salmon (Salmo salar) (start weight of 58 g) that were offered a standard feed with non-detectable levels of mycotoxins (control group) or 5.5 mg DON/kg feed (DON group). Each group comprised two tanks with 25 fish per tank. Five fish from each tank were sampled eight weeks after the start of the feeding trial, when mean weights for the control and DON groups were 123.2 g and 80.2 g, respectively. The relative expression of markers for three tight junction proteins (claudin 25b, occludin, and tricellulin) were lower, whereas the relative expression of a marker for proliferating cell nuclear antigen was higher in both the mid-intestine and the distal intestine in fish fed DON compared with fish from the control group. The relative expression of markers for two suppressors of cytokine signaling (SOCS1 and SOCS2) were higher in the distal intestine in fish fed DON. There was no indication of inflammation attributed to the feed in any intestinal segments. Our findings suggest that dietary DON impaired the intestinal integrity, while an inflammatory response appeared to be mitigated by suppressors of cytokine signaling. A dysfunctional intestinal barrier may have contributed to the impaired production performance observed in the DON group.
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Affiliation(s)
- Torfinn Moldal
- Norwegian Veterinary Institute, Post box 750 Sentrum, 0106 Oslo, Norway.
| | - Aksel Bernhoft
- Norwegian Veterinary Institute, Post box 750 Sentrum, 0106 Oslo, Norway.
| | | | - Magne Kaldhusdal
- Norwegian Veterinary Institute, Post box 750 Sentrum, 0106 Oslo, Norway.
| | - Erling Olaf Koppang
- Department of Basic Sciences and Aquatic Medicine, Norwegian University of Life Sciences, Post box 369 Sentrum, 0102 Oslo, Norway.
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12
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Huang D, Cui L, Guo P, Xue X, Wu Q, Hussain HI, Wang X, Yuan Z. Nitric oxide mediates apoptosis and mitochondrial dysfunction and plays a role in growth hormone deficiency by nivalenol in GH3 cells. Sci Rep 2017; 7:17079. [PMID: 29213091 PMCID: PMC5719085 DOI: 10.1038/s41598-017-16908-y] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2017] [Accepted: 11/20/2017] [Indexed: 12/11/2022] Open
Abstract
Nivalenol (NIV), a type B trichothecenes commonly found in cereal crops, can cause growth impairment in animals. However, limited information about its mechanisms is available. Trichothecenes have been characterized as an inhibitor of protein synthesis and induce apoptosis in cells. Oxidative stress is considered an underlying mechanism. However, whether NIV can induce oxidative stress and apoptosis in rat pituitary cells line GH3 is unclear. The present study showed that NIV significantly reduced the viability of cells and caused oxidative stress in GH3 cells. Further experiments showed that nitric oxide (NO), but not ROS, mediated NIV-induced oxidative stress. Additionally, NIV induced caspase-dependent apoptosis, decrease in mitochondrial membrane potential and mitochondrial ultrastructural changes. However, NIV-induced caspase activation, mitochondrial damage and apoptosis were partially alleviated by Z-VAD-FMK or NO scavenger hemoglobin. Finally, NIV changed the expression of growth-associated genes and pro-inflammatory cytokines. NIV also reduced the GH secretion in GH3 cells, which was reversed by hemoglobin. Taken together, these results suggested that NIV induced apoptosis in caspase-dependent mitochondrial pathway in GH3 cells, which might be an underlying mechanism of NIV-induced GH deficiency. Importantly, NO played a critical role in the induction of oxidative stress, apoptosis and GH deficiency in NIV-treated GH3 cells.
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Affiliation(s)
- Deyu Huang
- The Key Laboratory for the Detection of Veterinary Drug Residues, Ministry of Agriculture, Wuhan, P.R. China
| | - Luqing Cui
- Laboratory of Quality & Safety Risk Assessment for Livestock and Poultry Products (Wuhan), Ministry of Agriculture, Wuhan, P.R. China
| | - Pu Guo
- Laboratory of Quality & Safety Risk Assessment for Livestock and Poultry Products (Wuhan), Ministry of Agriculture, Wuhan, P.R. China
| | - Xijuan Xue
- Laboratory of Quality & Safety Risk Assessment for Livestock and Poultry Products (Wuhan), Ministry of Agriculture, Wuhan, P.R. China
| | - Qinghua Wu
- College of Life Science, Yangtze University, Jingzhou, Hubei, 434025, P.R. China
| | - Hafiz Iftikhar Hussain
- Laboratory of Quality & Safety Risk Assessment for Livestock and Poultry Products (Wuhan), Ministry of Agriculture, Wuhan, P.R. China
| | - Xu Wang
- Laboratory of Quality & Safety Risk Assessment for Livestock and Poultry Products (Wuhan), Ministry of Agriculture, Wuhan, P.R. China.
| | - Zonghui Yuan
- The Key Laboratory for the Detection of Veterinary Drug Residues, Ministry of Agriculture, Wuhan, P.R. China. .,Laboratory of Quality & Safety Risk Assessment for Livestock and Poultry Products (Wuhan), Ministry of Agriculture, Wuhan, P.R. China.
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13
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Reddy KE, Lee W, Jeong JY, Lee Y, Lee HJ, Kim MS, Kim DW, Yu D, Cho A, Oh YK, Lee SD. Effects of deoxynivalenol- and zearalenone-contaminated feed on the gene expression profiles in the kidneys of piglets. ASIAN-AUSTRALASIAN JOURNAL OF ANIMAL SCIENCES 2017; 31:138-148. [PMID: 28920417 PMCID: PMC5756916 DOI: 10.5713/ajas.17.0454] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/13/2017] [Revised: 07/31/2017] [Accepted: 08/31/2017] [Indexed: 02/08/2023]
Abstract
Objective Fusarium mycotoxins deoxynivalenol (DON) and zearalenone (ZEN), common contaminants in the feed of farm animals, cause immune function impairment and organ inflammation. Consequently, the main objective of this study was to elucidate DON and ZEN effects on the mRNA expression of pro-inflammatory cytokines and other immune related genes in the kidneys of piglets. Methods Fifteen 6-week-old piglets were randomly assigned to three dietary treatments for 4 weeks: control diet, and diets contaminated with either 8 mg DON/kg feed or 0.8 mg ZEN/kg feed. Kidney samples were collected after treatment, and RNA-seq was used to investigate the effects on immune-related genes and gene networks. Results A total of 186 differentially expressed genes (DEGs) were screened (120 upregulated and 66 downregulated). Gene ontology analysis revealed that the immune response, and cellular and metabolic processes were significantly controlled by these DEGs. The inflammatory stimulation might be an effect of the following enriched Kyoto encyclopedia of genes and genomes pathway analysis found related to immune and disease responses: cytokine-cytokine receptor interaction, chemokine signaling pathway, toll-like receptor signaling pathway, systemic lupus erythematosus (SLE), tuberculosis, Epstein-Barr virus infection, and chemical carcinogenesis. The effects of DON and ZEN on genome-wide expression were assessed, and it was found that the DEGs associated with inflammatory cytokines (interleukin 10 receptor, beta, chemokine [C-X-C motif] ligand 9, CXCL10, chemokine [C-C motif] ligand 4), proliferation (insulin like growth factor binding protein 4, IgG heavy chain, receptor-type tyrosine-protein phosphatase C, cytochrome P450 1A1, ATP-binding cassette sub-family 8), and other immune response networks (lysozyme, complement component 4 binding protein alpha, oligoadenylate synthetase 2, signaling lymphocytic activation molecule-9, α-aminoadipic semialdehyde dehydrogenase, Ig lambda chain c region, pyruvate dehydrogenase kinase, isozyme 4, carboxylesterase 1), were suppressed by DON and ZEN. Conclusion In summary, our results indicate that high concentrations of DON and ZEN suppress the inflammatory response in kidneys, leading to potential effects on immune homeostasis.
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Affiliation(s)
- Kondreddy Eswar Reddy
- Animal Nutritional and Physiology Team, National Institute of Animal Science, RDA, Wanju 55365, Korea
| | - Woong Lee
- Animal Nutritional and Physiology Team, National Institute of Animal Science, RDA, Wanju 55365, Korea
| | - Jin Young Jeong
- Animal Nutritional and Physiology Team, National Institute of Animal Science, RDA, Wanju 55365, Korea
| | - Yookyung Lee
- Animal Nutritional and Physiology Team, National Institute of Animal Science, RDA, Wanju 55365, Korea
| | - Hyun-Jeong Lee
- Animal Nutritional and Physiology Team, National Institute of Animal Science, RDA, Wanju 55365, Korea
| | - Min Seok Kim
- Animal Nutritional and Physiology Team, National Institute of Animal Science, RDA, Wanju 55365, Korea
| | - Dong-Woon Kim
- Animal Nutritional and Physiology Team, National Institute of Animal Science, RDA, Wanju 55365, Korea
| | - Dongjo Yu
- Swine Science Division, National Institute of Animal Science, RDA, Cheonan 31000, Korea
| | - Ara Cho
- Animal Disease and Biosecurity Team, National Institute of Animal Science, RDA, Wanju 55365, Korea
| | - Young Kyoon Oh
- Animal Nutritional and Physiology Team, National Institute of Animal Science, RDA, Wanju 55365, Korea
| | - Sung Dae Lee
- Animal Nutritional and Physiology Team, National Institute of Animal Science, RDA, Wanju 55365, Korea
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14
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Sun XD, Su P, Shan H. Mycotoxin Contamination of Maize in China. Compr Rev Food Sci Food Saf 2017; 16:835-849. [DOI: 10.1111/1541-4337.12286] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2017] [Revised: 06/03/2017] [Accepted: 06/06/2017] [Indexed: 10/19/2022]
Affiliation(s)
- Xiang Dong Sun
- Quality & Safety Inst. of Agricultural Products; Heilongjiang Academy of Agricultural Sciences; Harbin 150086 China
- Laboratory of Quality & Safety Risk Assessment for Agro-products (Harbin); Ministry of Agriculture; Harbin 150086 China
| | - Ping Su
- Quality & Safety Inst. of Agricultural Products; Heilongjiang Academy of Agricultural Sciences; Harbin 150086 China
- Laboratory of Quality & Safety Risk Assessment for Agro-products (Harbin); Ministry of Agriculture; Harbin 150086 China
| | - Hong Shan
- Quality & Safety Inst. of Agricultural Products; Heilongjiang Academy of Agricultural Sciences; Harbin 150086 China
- Laboratory of Quality & Safety Risk Assessment for Agro-products (Harbin); Ministry of Agriculture; Harbin 150086 China
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15
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Peng Z, Chen L, Nüssler AK, Liu L, Yang W. Current sights for mechanisms of deoxynivalenol-induced hepatotoxicity and prospective views for future scientific research: A mini review. J Appl Toxicol 2016; 37:518-529. [DOI: 10.1002/jat.3428] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2016] [Revised: 11/07/2016] [Accepted: 11/07/2016] [Indexed: 12/25/2022]
Affiliation(s)
- Zhao Peng
- Department of Nutrition and Food Hygiene, Hubei Key Laboratory of Food Nutrition and Safety, Tongji Medical College; Huazhong University of Science and Technology; Hangkong Road 13 430030 Wuhan China
| | - Liangkai Chen
- Department of Nutrition and Food Hygiene, Hubei Key Laboratory of Food Nutrition and Safety, Tongji Medical College; Huazhong University of Science and Technology; Hangkong Road 13 430030 Wuhan China
| | - Andreas K. Nüssler
- Department of Traumatology, BG Trauma center; University of Tübingen; Schnarrenbergstr. 95 72076 Tübingen Germany
| | - Liegang Liu
- Department of Nutrition and Food Hygiene, Hubei Key Laboratory of Food Nutrition and Safety, Tongji Medical College; Huazhong University of Science and Technology; Hangkong Road 13 430030 Wuhan China
- Department of Nutrition and Food Hygiene and MOE Key Lab of Environment and Health, School of Public Health, Tongji Medical College; Huazhong University of Science and Technology; Hangkong Road 13 430030 Wuhan China
| | - Wei Yang
- Department of Nutrition and Food Hygiene, Hubei Key Laboratory of Food Nutrition and Safety, Tongji Medical College; Huazhong University of Science and Technology; Hangkong Road 13 430030 Wuhan China
- Department of Nutrition and Food Hygiene and MOE Key Lab of Environment and Health, School of Public Health, Tongji Medical College; Huazhong University of Science and Technology; Hangkong Road 13 430030 Wuhan China
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16
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Co-exposure to low doses of the food contaminants deoxynivalenol and nivalenol has a synergistic inflammatory effect on intestinal explants. Arch Toxicol 2016; 91:2677-2687. [DOI: 10.1007/s00204-016-1902-9] [Citation(s) in RCA: 59] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2016] [Accepted: 11/24/2016] [Indexed: 01/24/2023]
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17
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Payros D, Alassane-Kpembi I, Pierron A, Loiseau N, Pinton P, Oswald IP. Toxicology of deoxynivalenol and its acetylated and modified forms. Arch Toxicol 2016; 90:2931-2957. [PMID: 27663890 DOI: 10.1007/s00204-016-1826-4] [Citation(s) in RCA: 204] [Impact Index Per Article: 25.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2016] [Accepted: 08/22/2016] [Indexed: 12/14/2022]
Abstract
Mycotoxins are the most frequently occurring natural contaminants in human and animal diet. Among them, deoxynivalenol (DON), produced by Fusarium, is one of the most prevalent and thus represents an important health risk. Recent detection methods revealed new mycotoxins and new molecules derivated from the "native" mycotoxins. The main derivates of DON are the acetylated forms produced by the fungi (3- and 15-acetyl-DON), the biologically "modified" forms produced by the plant (deoxynivalenol-3-β-D-glucopyranoside), or after bacteria transformation (de-epoxy DON, 3-epi-DON and 3-keto-DON) as well as the chemically "modified" forms (norDON A-C and DON-sulfonates). High proportions of acetylated and modified forms of DON co-occur with DON, increasing the exposure and the health risk. DON and its acetylated and modified forms are rapidly absorbed following ingestion. At the molecular level, DON binds to the ribosome, induces a ribotoxic stress leading to the activation of MAP kinases, cellular cell-cycle arrest and apoptosis. The toxic effects of DON include emesis and anorexia, alteration of intestinal and immune functions, reduced absorption of the nutrients as well as increased susceptibility to infection and chronic diseases. In contrast to DON, very little information exists concerning the acetylated and modified forms; some can be converted back to DON, their ability to bind to the ribosome and to induce cellular effects varies according to the toxin. Except for the acetylated forms, their toxicity and impact on human and animal health are poorly documented.
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Affiliation(s)
- Delphine Payros
- Toxalim (Research center in Food Toxicology), Université de Toulouse, INRA, ENVT, INP-Purpan, UPS, Toulouse, France
| | - Imourana Alassane-Kpembi
- Toxalim (Research center in Food Toxicology), Université de Toulouse, INRA, ENVT, INP-Purpan, UPS, Toulouse, France
| | - Alix Pierron
- Toxalim (Research center in Food Toxicology), Université de Toulouse, INRA, ENVT, INP-Purpan, UPS, Toulouse, France.,BIOMIN Research Center, Technopark 1, 3430, Tulln, Austria
| | - Nicolas Loiseau
- Toxalim (Research center in Food Toxicology), Université de Toulouse, INRA, ENVT, INP-Purpan, UPS, Toulouse, France
| | - Philippe Pinton
- Toxalim (Research center in Food Toxicology), Université de Toulouse, INRA, ENVT, INP-Purpan, UPS, Toulouse, France
| | - Isabelle P Oswald
- Toxalim (Research center in Food Toxicology), Université de Toulouse, INRA, ENVT, INP-Purpan, UPS, Toulouse, France.
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18
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Liu Y, Lu Y, Wang L, Chang F, Yang L. Occurrence of deoxynivalenol in wheat, Hebei Province, China. Food Chem 2016; 197 Pt B:1271-4. [DOI: 10.1016/j.foodchem.2015.11.047] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2015] [Revised: 11/09/2015] [Accepted: 11/11/2015] [Indexed: 10/22/2022]
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19
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Wan D, Wang X, Wu Q, Lin P, Pan Y, Sattar A, Huang L, Ahmad I, Zhang Y, Yuan Z. Integrated Transcriptional and Proteomic Analysis of Growth Hormone Suppression Mediated by Trichothecene T-2 Toxin in Rat GH3 Cells. Toxicol Sci 2015; 147:326-38. [PMID: 26141394 DOI: 10.1093/toxsci/kfv131] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2023] Open
Abstract
Chronic exposure to trichothecenes is known to disturb insulin-like growth factor 1 and signaling of insulin and leptin hormones and causes considerable growth retardation in animals. However, limited information was available on mechanisms underlying trichothecene-induced growth retardation. In this study, we employed an integrated transcriptomics, proteomics, and RNA interference (RNAi) approach to study the molecular mechanisms underlying trichothecene cytotoxicity in rat pituitary adenoma GH3 cells. Our results showed that trichothecenes suppressed the synthesis of growth hormone 1 (Gh1) and inhibited the eukaryotic transcription and translation initiation by suppressing aminoacyl-tRNA synthetases transcription, inducing eukaryotic translation initiation factor 2-alpha kinase 2 (EIF2AK2) and reducing eukaryotic translation initiation factor 5 a. The sulfhydryl oxidases , protein disulfide isomerase,and heat shock protein 90 (were greatly reduced, which resulted in adverse regulation of protein processing and folding. Differential genes and proteins associated with a decline in energy metabolism and cell cycle arrest were also found in our study. However, use of RNAi to interfere with hemopoietic cell kinase (Hck) and EIF2AK2 transcriptions or use of chemical inhibitors of MAPK, p38, Ras, and JNK partially reversed the reduction of Gh1 levels induced by trichothecenes. It indicated that the activation of MAPKs, Hck, and EIF2AK2 were important for trichothecene-induced growth hormone suppression. Considering the potential hazards of exposure to trichothecenes, our findings could help to improve our understanding regarding human and animal health implications.
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Affiliation(s)
- Dan Wan
- *National Reference Laboratory of Veterinary Drug Residues (HZAU) and MAO Key Laboratory for Detection of Veterinary Drug Residues; MOA Laboratory for Risk Assessment of Quality and Safety of Livestock and Poultry Products, Huazhong Agricultural University; Hubei Collaborative Innovation Center for Animal Nutrition and Feed Safety, Wuhan, Hubei, China; Research Center of Healthy Livestock Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, China
| | - Xu Wang
- *National Reference Laboratory of Veterinary Drug Residues (HZAU) and MAO Key Laboratory for Detection of Veterinary Drug Residues; MOA Laboratory for Risk Assessment of Quality and Safety of Livestock and Poultry Products, Huazhong Agricultural University; Hubei Collaborative Innovation Center for Animal Nutrition and Feed Safety, Wuhan, Hubei, China
| | - Qinghua Wu
- *National Reference Laboratory of Veterinary Drug Residues (HZAU) and MAO Key Laboratory for Detection of Veterinary Drug Residues; College of Life Science, Yangtze University, Jingzhou, Hubei, China; and Center for Basic and Applied Research, Faculty of Informatics and Management, University of Hradec Kralove, Hradec Kralove, Czech Republic
| | - Pingping Lin
- MOA Laboratory for Risk Assessment of Quality and Safety of Livestock and Poultry Products, Huazhong Agricultural University; Hubei Collaborative Innovation Center for Animal Nutrition and Feed Safety, Wuhan, Hubei, China
| | - Yuanhu Pan
- MOA Laboratory for Risk Assessment of Quality and Safety of Livestock and Poultry Products, Huazhong Agricultural University; Hubei Collaborative Innovation Center for Animal Nutrition and Feed Safety, Wuhan, Hubei, China
| | - Adeel Sattar
- *National Reference Laboratory of Veterinary Drug Residues (HZAU) and MAO Key Laboratory for Detection of Veterinary Drug Residues; Hubei Collaborative Innovation Center for Animal Nutrition and Feed Safety, Wuhan, Hubei, China
| | - Lingli Huang
- *National Reference Laboratory of Veterinary Drug Residues (HZAU) and MAO Key Laboratory for Detection of Veterinary Drug Residues; MOA Laboratory for Risk Assessment of Quality and Safety of Livestock and Poultry Products, Huazhong Agricultural University
| | - Ijaz Ahmad
- *National Reference Laboratory of Veterinary Drug Residues (HZAU) and MAO Key Laboratory for Detection of Veterinary Drug Residues; Hubei Collaborative Innovation Center for Animal Nutrition and Feed Safety, Wuhan, Hubei, China
| | - Yuanyuan Zhang
- *National Reference Laboratory of Veterinary Drug Residues (HZAU) and MAO Key Laboratory for Detection of Veterinary Drug Residues; MOA Laboratory for Risk Assessment of Quality and Safety of Livestock and Poultry Products, Huazhong Agricultural University
| | - Zonghui Yuan
- *National Reference Laboratory of Veterinary Drug Residues (HZAU) and MAO Key Laboratory for Detection of Veterinary Drug Residues; MOA Laboratory for Risk Assessment of Quality and Safety of Livestock and Poultry Products, Huazhong Agricultural University; Hubei Collaborative Innovation Center for Animal Nutrition and Feed Safety, Wuhan, Hubei, China;
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Capasso L, Longhin E, Caloni F, Camatini M, Gualtieri M. Synergistic inflammatory effect of PM10 with mycotoxin deoxynivalenol on human lung epithelial cells. Toxicon 2015; 104:65-72. [PMID: 26263889 DOI: 10.1016/j.toxicon.2015.08.008] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2015] [Revised: 06/10/2015] [Accepted: 08/06/2015] [Indexed: 01/08/2023]
Abstract
The presence of deoxynivalenol (DON), a mycotoxin produced by Fusarium species, has been reported worldwide in food and feedstuffs. Even though oral intake is the main route of exposure, DON inhalation is also of concern in workers and exposed population. Particulate matter (PM) is one of the most important causes of air quality detriment and it induces several adverse health effects. Therefore it is of primary importance to understand possible combined effects of DON and PM. The alveolar type II, A549, and the bronchial epithelial, BEAS-2B, cell lines were exposed for 24 h to different concentrations of DON (10-1000 ng/ml), PM10 (5 μg/cm(2), sampled in summer or winter season), and a combination of these pollutants. Cell death, interleukins release and cell cycle alteration were analysed; protein array technique was also applied to evaluate proteins activation related to MAP-kinases cascade. Our results demonstrate that low doses of PM and DON used alone have scarce toxic effects, while induce cytotoxicity and inflammation when used in combination. This observation outlines the importance of investigation on the combined effects of air pollutants for their possible outcomes on human health.
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Affiliation(s)
- Laura Capasso
- Polaris Research Centre, Dept. of Earth and Environmental Sciences, University of Milano-Bicocca, Piazza della Scienza, 1, 20126, Milan, Italy
| | - Eleonora Longhin
- Polaris Research Centre, Dept. of Earth and Environmental Sciences, University of Milano-Bicocca, Piazza della Scienza, 1, 20126, Milan, Italy
| | - Francesca Caloni
- Department of Health, Animal Science and Food Safety (VESPA), Università degli Studi di Milano, Via Celoria, 10 20133 Milan, Italy
| | - Marina Camatini
- Polaris Research Centre, Dept. of Earth and Environmental Sciences, University of Milano-Bicocca, Piazza della Scienza, 1, 20126, Milan, Italy
| | - Maurizio Gualtieri
- ENEA-UTTS/SSPT-MET-INAT, Strada per Crescentino 41, 13040, Saluggia, VC, Italy.
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Clark ES, Flannery BM, Pestka JJ. Murine Anorectic Response to Deoxynivalenol (Vomitoxin) Is Sex-Dependent. Toxins (Basel) 2015; 7:2845-59. [PMID: 26230710 PMCID: PMC4549728 DOI: 10.3390/toxins7082845] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2015] [Revised: 07/17/2015] [Accepted: 07/17/2015] [Indexed: 11/16/2022] Open
Abstract
Deoxynivalenol (DON, vomitoxin), a common trichothecene mycotoxin found in cereal foods, dysregulates immune function and maintenance of energy balance. The purpose of this study was to determine if sex differences are similarly evident in DON's anorectic responses in mice. A bioassay for feed refusal, previously developed by our lab, was used to compare acute i.p. exposures of 1 and 5 mg/kg bw DON in C57BL6 mice. Greater anorectic responses were seen in male than female mice. Male mice had higher organ and plasma concentrations of DON upon acute exposure than their female counterparts. A significant increase in IL-6 plasma levels was also observed in males while cholecystokinin response was higher in females. When effects of sex on food intake and body weight changes were compared after subchronic dietary exposure to 1, 2.5, and 10 ppm DON, males were found again to be more sensitive. Demonstration of male predilection to DON-induced changes in food intake and weight gain might an important consideration in future risk assessment of DON and other trichothecenes.
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Affiliation(s)
- Erica S Clark
- Department of Food Science and Human Nutrition, Michigan State University, East Lansing, MI 48824, USA.
- Center for Integrative Toxicology, Michigan State University, East Lansing, MI 48824, USA.
| | - Brenna M Flannery
- Department of Food Science and Human Nutrition, Michigan State University, East Lansing, MI 48824, USA.
- Center for Integrative Toxicology, Michigan State University, East Lansing, MI 48824, USA.
| | - James J Pestka
- Department of Food Science and Human Nutrition, Michigan State University, East Lansing, MI 48824, USA.
- Center for Integrative Toxicology, Michigan State University, East Lansing, MI 48824, USA.
- Department of Microbiology and Molecular Genetics, Michigan State University, East Lansing, MI 48824, USA.
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22
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Wu L, Liao P, He L, Ren W, Yin J, Duan J, Li T. Growth performance, serum biochemical profile, jejunal morphology, and the expression of nutrients transporter genes in deoxynivalenol (DON)- challenged growing pigs. BMC Vet Res 2015; 11:144. [PMID: 26138080 PMCID: PMC4490653 DOI: 10.1186/s12917-015-0449-y] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2014] [Accepted: 06/02/2015] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND Fusarium infection with concurrent production of deoxynivalenol (DON) causes an increasing safety concern with feed worldwide. This study was conducted to determine the effects of varying levels of DON in diets on growth performance, serum biochemical profile, jejunal morphology, and the differential expression of nutrients transporter genes in growing pigs. RESULTS A total of twenty-four 60-day-old healthy growing pigs (initial body weight = 16.3 ± 1.5 kg SE) were individually housed and randomly assigned to receive one of four diets containing 0, 3, 6 or 12 mg DON/kg feed for 21 days. Differences were observed between control and the 12 mg/kg DON treatment group with regards to average daily gain (ADG), although the value for average daily feed intake (ADFI) in the 3 mg/kg DON treatment group was slightly higher than that in control (P<0.01). The relative liver weight in the 12 mg/kg DON treatment group was significantly greater than that in the control (P<0.01), but there were no significant differences in other organs. With regard to serum biochemistry, the values of blood urea nitrogen (BUN), alkaline phosphatase (ALP), alanine aminotransferase (ALT) and aspartate amino transferase (AST) in the 3 treatment groups were higher than those in the control, and the serum concentrations of L-valine, glycine, L-serine, and L-glutamine were significantly reduced in the 3 treatment groups, especially in the 12 mg/kg DON group (P<0.01). Serum total superoxide dismutase (T-SOD), glutathione peroxidase (GSH-Px) were markedly decreased after exposure to DON contaminated feeds (P<0.01). The villi height was markedly decreased and the lymphocyte cell numbers markedly increased in the 3 DON contaminated feeds (P<0.01). The mRNA expression levels of excitatory amino acid transporter-3 (EAAC-3), sodium-glucose transporter-1 (SGLT-1), dipeptide transporter-1 (PepT-1), cationic amino acid transporter-1 (CAT-1) and y(+)L-type amino acid transporter-1 (LAT-1) in control were slightly or markedly higher than those in the 3 DON treatment groups. CONCLUSIONS These results showed that feeds containing DON cause a wide range of effects in a dose-dependent manner. Such effects includes weight loss, live injury and oxidation stress, and malabsorption of nutrients as a result of selective regulation of nutrient transporter genes such as EAAC-3, SGLT-1, PepT-1, CAT-1 and LAT-1.
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Affiliation(s)
- Li Wu
- Institute of Subtropical Agriculture, Chinese Academy of Sciences, 644# Yuandaer Road, Changsha, 410125, China.
| | - Peng Liao
- Institute of Subtropical Agriculture, Chinese Academy of Sciences, 644# Yuandaer Road, Changsha, 410125, China.
| | - Liuqin He
- Institute of Subtropical Agriculture, Chinese Academy of Sciences, 644# Yuandaer Road, Changsha, 410125, China.
| | - Wenkai Ren
- Institute of Subtropical Agriculture, Chinese Academy of Sciences, 644# Yuandaer Road, Changsha, 410125, China.
| | - Jie Yin
- Institute of Subtropical Agriculture, Chinese Academy of Sciences, 644# Yuandaer Road, Changsha, 410125, China.
| | - Jielin Duan
- Institute of Subtropical Agriculture, Chinese Academy of Sciences, 644# Yuandaer Road, Changsha, 410125, China.
| | - Tiejun Li
- Institute of Subtropical Agriculture, Chinese Academy of Sciences, 644# Yuandaer Road, Changsha, 410125, China.
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Morris G, Berk M, Walder K, Maes M. The Putative Role of Viruses, Bacteria, and Chronic Fungal Biotoxin Exposure in the Genesis of Intractable Fatigue Accompanied by Cognitive and Physical Disability. Mol Neurobiol 2015; 53:2550-71. [PMID: 26081141 DOI: 10.1007/s12035-015-9262-7] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2014] [Accepted: 05/28/2015] [Indexed: 01/08/2023]
Abstract
Patients who present with severe intractable apparently idiopathic fatigue accompanied by profound physical and or cognitive disability present a significant therapeutic challenge. The effect of psychological counseling is limited, with significant but very slight improvements in psychometric measures of fatigue and disability but no improvement on scientific measures of physical impairment compared to controls. Similarly, exercise regimes either produce significant, but practically unimportant, benefit or provoke symptom exacerbation. Many such patients are afforded the exclusionary, non-specific diagnosis of chronic fatigue syndrome if rudimentary testing fails to discover the cause of their symptoms. More sophisticated investigations often reveal the presence of a range of pathogens capable of establishing life-long infections with sophisticated immune evasion strategies, including Parvoviruses, HHV6, variants of Epstein-Barr, Cytomegalovirus, Mycoplasma, and Borrelia burgdorferi. Other patients have a history of chronic fungal or other biotoxin exposure. Herein, we explain the epigenetic factors that may render such individuals susceptible to the chronic pathology induced by such agents, how such agents induce pathology, and, indeed, how such pathology can persist and even amplify even when infections have cleared or when biotoxin exposure has ceased. The presence of active, reactivated, or even latent Herpes virus could be a potential source of intractable fatigue accompanied by profound physical and or cognitive disability in some patients, and the same may be true of persistent Parvovirus B12 and mycoplasma infection. A history of chronic mold exposure is a feasible explanation for such symptoms, as is the presence of B. burgdorferi. The complex tropism, life cycles, genetic variability, and low titer of many of these pathogens makes their detection in blood a challenge. Examination of lymphoid tissue or CSF in such circumstances may be warranted.
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Affiliation(s)
- Gerwyn Morris
- Tir Na Nog, Bryn Road seaside 87, Llanelli, SA15 2LW, Wales, UK
| | - Michael Berk
- IMPACT Strategic Research Centre, School of Medicine, Deakin University, Geelong, Australia.,Orygen, The National Centre of Excellence in Youth Mental Health, Department of Psychiatry and The Florey Institute of Neuroscience and Mental Health, The University of Melbourne, Parkville, Australia
| | - Ken Walder
- Centre for Molecular and Medical Research, School of Medicine, Deakin University, Geelong, Australia
| | - Michael Maes
- IMPACT Strategic Research Centre, School of Medicine, Deakin University, Geelong, Australia. .,Department of Psychiatry, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand.
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Dysregulation of energy balance by trichothecene mycotoxins: Mechanisms and prospects. Neurotoxicology 2015; 49:15-27. [PMID: 25956358 DOI: 10.1016/j.neuro.2015.04.009] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2015] [Revised: 04/14/2015] [Accepted: 04/26/2015] [Indexed: 11/23/2022]
Abstract
Trichothecenes are toxic metabolites produced by fungi that constitute a worldwide hazard for agricultural production and both animal and human health. More than 40 countries have introduced regulations or guidelines for food and feed contamination levels of the most prevalent trichothecene, deoxynivalenol (DON), on the basis of its ability to cause growth suppression. With the development of analytical tools, evaluation of food contamination and exposure revealed that a significant proportion of the human population is chronically exposed to DON doses exceeding the provisional maximum tolerable daily dose. Accordingly, a better understanding of trichothecene impact on health is needed. Upon exposure to low or moderate doses, DON and other trichothecenes induce anorexia, vomiting and reduced weight gain. Several recent studies have addressed the mechanisms by which trichothecenes induce these symptoms and revealed a multifaceted action targeting gut, liver and brain and causing dysregulation in neuroendocrine signaling, immune responses, growth hormone axis, and central neurocircuitries involved in energy homeostasis. Newly identified trichothecene toxicosis biomarkers are just beginning to be exploited and already open up new questions on the potential harmful effects of chronic exposure to DON at apparently asymptomatic very low levels. This review summarizes our current understanding of the effects of DON and other trichothecenes on food intake and weight growth.
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25
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Pietsch C, Michel C, Kersten S, Valenta H, Dänicke S, Schulz C, Kloas W, Burkhardt-Holm P. In vivo effects of deoxynivalenol (DON) on innate immune responses of carp (Cyprinus carpio L.). Food Chem Toxicol 2014; 68:44-52. [DOI: 10.1016/j.fct.2014.03.012] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2013] [Revised: 02/09/2014] [Accepted: 03/07/2014] [Indexed: 12/29/2022]
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26
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Pinton P, Oswald IP. Effect of deoxynivalenol and other Type B trichothecenes on the intestine: a review. Toxins (Basel) 2014; 6:1615-43. [PMID: 24859243 PMCID: PMC4052256 DOI: 10.3390/toxins6051615] [Citation(s) in RCA: 232] [Impact Index Per Article: 23.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2013] [Revised: 03/28/2014] [Accepted: 05/09/2014] [Indexed: 12/23/2022] Open
Abstract
The natural food contaminants, mycotoxins, are regarded as an important risk factor for human and animal health, as up to 25% of the world's crop production may be contaminated. The Fusarium genus produces large quantities of fusariotoxins, among which the trichothecenes are considered as a ubiquitous problem worldwide. The gastrointestinal tract is the first physiological barrier against food contaminants, as well as the first target for these toxicants. An increasing number of studies suggest that intestinal epithelial cells are targets for deoxynivalenol (DON) and other Type B trichothecenes (TCTB). In humans, various adverse digestive symptoms are observed on acute exposure, and in animals, these toxins induce pathological lesions, including necrosis of the intestinal epithelium. They affect the integrity of the intestinal epithelium through alterations in cell morphology and differentiation and in the barrier function. Moreover, DON and TCTB modulate the activity of intestinal epithelium in its role in immune responsiveness. TCTB affect cytokine production by intestinal or immune cells and are supposed to interfere with the cross-talk between epithelial cells and other intestinal immune cells. This review summarizes our current knowledge of the effects of DON and other TCTB on the intestine.
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Affiliation(s)
- Philippe Pinton
- INRA (Institut National de la Recherche Agronomique), UMR1331, Toxalim, Research Centre in Food Toxicology, Toulouse F-31027, France.
| | - Isabelle P Oswald
- INRA (Institut National de la Recherche Agronomique), UMR1331, Toxalim, Research Centre in Food Toxicology, Toulouse F-31027, France.
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27
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Wu W, He K, Zhou HR, Berthiller F, Adam G, Sugita-Konishi Y, Watanabe M, Krantis A, Durst T, Zhang H, Pestka JJ. Effects of oral exposure to naturally-occurring and synthetic deoxynivalenol congeners on proinflammatory cytokine and chemokine mRNA expression in the mouse. Toxicol Appl Pharmacol 2014; 278:107-15. [PMID: 24793808 DOI: 10.1016/j.taap.2014.04.016] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2014] [Revised: 04/15/2014] [Accepted: 04/17/2014] [Indexed: 11/28/2022]
Abstract
The foodborne mycotoxin deoxynivalenol (DON) induces a ribotoxic stress response in mononuclear phagocytes that mediate aberrant multi-organ upregulation of TNF-α, interleukins and chemokines in experimental animals. While other DON congeners also exist as food contaminants or pharmacologically-active derivatives, it is not known how these compounds affect expression of these cytokine genes in vivo. To address this gap, we compared in mice the acute effects of oral DON exposure to that of seven relevant congeners on splenic expression of representative cytokine mRNAs after 2 and 6h. Congeners included the 8-ketotrichothecenes 3-acetyldeoxynivalenol (3-ADON), 15-acetyldeoxynivalenol (15-ADON), fusarenon X (FX), nivalenol (NIV), the plant metabolite DON-3-glucoside (D3G) and two synthetic DON derivatives with novel satiety-inducing properties (EN139528 and EN139544). DON markedly induced transient upregulation of TNF-α IL-1β, IL-6, CXCL-2, CCL-2 and CCL-7 mRNA expressions. The two ADONs also evoked mRNA expression of these genes but to a relatively lesser extent. FX induced more persistent responses than the other DON congeners and, compared to DON, was: 1) more potent in inducing IL-1β mRNA, 2) approximately equipotent in the induction of TNF-α and CCL-2 mRNAs, and 3) less potent at upregulating IL-6, CXCL-2, and CCL-2 mRNAs. EN139528's effects were similar to NIV, the least potent 8-ketotrichothecene, while D3G and EN139544 were largely incapable of eliciting cytokine or chemokine mRNA responses. Taken together, the results presented herein provide important new insights into the potential of naturally-occurring and synthetic DON congeners to elicit aberrant mRNA upregulation of cytokines associated with acute and chronic trichothecene toxicity.
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Affiliation(s)
- Wenda Wu
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, PR China; Dept. of Food Science and Human Nutrition, Michigan State University, East Lansing, MI 48824, USA
| | - Kaiyu He
- Center for Integrative Toxicology, Michigan State University, East Lansing, MI 48824, USA; Dept. of Microbiology and Molecular Genetics, Michigan State University, East Lansing, MI 48824, USA
| | - Hui-Ren Zhou
- Dept. of Food Science and Human Nutrition, Michigan State University, East Lansing, MI 48824, USA
| | - Franz Berthiller
- Christian Doppler Laboratory for Mycotoxin Metabolism and Center for Analytical Chemistry, University of Natural Resources and Life Sciences, Tulln, Austria
| | - Gerhard Adam
- Dept. of Applied Genetics and Cell Biology, University of Natural Resources and Life Sciences, Vienna, Austria
| | - Yoshiko Sugita-Konishi
- Food and Life Sciences, Azabu University, 1-17-71 Fuchinobe Chuo-ku, Sagamihara, Kanagawa Pref., 252-5201, Japan
| | - Maiko Watanabe
- Division of Microbiology, National Institute of Health Sciences, 1-18-1 Kamiyoga, Setagaya, Tokyo 158-8501, Japan
| | - Anthony Krantis
- Dept. of Cellular and Molecular Medicine, University of Ottawa, Canada
| | - Tony Durst
- Dept. of Chemistry, University of Ottawa, Canada
| | - Haibin Zhang
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, PR China
| | - James J Pestka
- Dept. of Food Science and Human Nutrition, Michigan State University, East Lansing, MI 48824, USA; Center for Integrative Toxicology, Michigan State University, East Lansing, MI 48824, USA; Dept. of Microbiology and Molecular Genetics, Michigan State University, East Lansing, MI 48824, USA.
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28
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Wu W, Zhang H. Role of tumor necrosis factor-α and interleukin-1β in anorexia induction following oral exposure to the trichothecene deoxynivalenol (vomitoxin) in the mouse. J Toxicol Sci 2014; 39:875-86. [DOI: 10.2131/jts.39.875] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Affiliation(s)
- Wenda Wu
- College of Veterinary Medicine, Nanjing Agricultural University, China
| | - Haibin Zhang
- College of Veterinary Medicine, Nanjing Agricultural University, China
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29
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Critical role for peripherally-derived interleukin-10 in mediating the thermoregulatory manifestations of fever and hypothermia in severe forms of lipopolysaccharide-induced inflammation. Pflugers Arch 2013; 466:1451-66. [DOI: 10.1007/s00424-013-1371-4] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2013] [Accepted: 09/23/2013] [Indexed: 02/05/2023]
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Halawa A, Dänicke S, Kersten S, Breves G. Intestinal transport of deoxynivalenol across porcine small intestines. Arch Anim Nutr 2013; 67:134-46. [PMID: 23521693 DOI: 10.1080/1745039x.2013.776327] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Deoxynivalenol (DON) is one of the most important trichothecenes, due to its worldwide distribution and common contamination of animal feed. It mainly affects the gastrointestinal tract and the immune system with a high susceptibility for swine. Lipopolysaccharides (LPS) are endotoxins and are part of the outer membrane of most gram-negative bacteria. They induce inflammatory responses under systemic application. We hypothesised that dietary DON as well as LPS challenge could affect the transport of DON in vitro. For assessment of this hypothesis, a total of 16 pigs were divided into two groups, Control and DON-feeding. In each group, four animals were injected intraperitoneally with LPS (5 µg/kg BW). Jejunal preparations were mounted on the Ussing chambers, and after luminal addition of DON at two different concentrations (4000 and 8000 ng/ml), buffer samples were collected at different time points to measure the concentration of DON using LC-MS/MS analysis. Our findings revealed a significant interaction effect between dietary DON and DON in vitro represented by higher mucosal uptake of DON in DON-fed animals. Animals challenged with LPS showed higher mucosal uptake but without significant effect of LPS. We concluded that the transport of DON was proportional to its concentration and DON in feed could have an effect on the transport of DON across porcine jejunal mucosa. LPS challenge induced no apparent significant effect on DON transport, although induction of acute phase reaction was present.
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Affiliation(s)
- Amal Halawa
- Physiological Institute , University of Veterinary Medicine, Hannover , Germany
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Flannery BM, He K, Pestka JJ. Deoxynivalenol-induced weight loss in the diet-induced obese mouse is reversible and PKR-independent. Toxicol Lett 2013; 221:9-14. [PMID: 23707852 DOI: 10.1016/j.toxlet.2013.05.008] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2013] [Accepted: 05/15/2013] [Indexed: 11/18/2022]
Abstract
The trichothecene deoxynivalenol (DON), a potent ribotoxic mycotoxin produced by the cereal blight fungus Fusarium graminearum, commonly contaminates grain-based foods. Oral exposure to DON causes decreased food intake, reduced weight gain and body weight loss in experimental animals - effects that have been linked to dysregulation of hormones responsible for mediating satiety at the central nervous system level. When diet-induced obese (DIO) mice are fed DON, they consume less food, eventually achieving body weights of control diet-fed mice. Here, we extended these findings by characterizing: (1) reversibility of DON-induced body weight loss and anorexia in DIO mice and (2) the role of double-stranded RNA-activated protein kinase (PKR) which has been previously linked to initiation of the ribotoxic stress response. The results demonstrated that DON-induced weight loss was reversible in DIO mice and this effect corresponded to initiation of a robust hyperphagic response. When DIO mice deficient in PKR were exposed to DON, they exhibited weight suppression similar to DIO wild-type fed the toxin, suggesting the toxin's weight effects were not dependent on PKR. Taken together, DON's effects on food consumption and body weight are not permanent and, furthermore, PKR is not an essential signaling molecule for DON's anorectic and weight effects.
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Affiliation(s)
- Brenna M Flannery
- Department of Food Science and Human Nutrition, Michigan State University, East Lansing, MI 48824-1224, USA
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Do KH, Choi HJ, Kim J, Park SH, Kim KH, Moon Y. SOCS3 Regulates BAFF in Human Enterocytes under Ribosomal Stress. THE JOURNAL OF IMMUNOLOGY 2013; 190:6501-10. [DOI: 10.4049/jimmunol.1203004] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Deoxynivalenol as a new factor in the persistence of intestinal inflammatory diseases: an emerging hypothesis through possible modulation of Th17-mediated response. PLoS One 2013; 8:e53647. [PMID: 23326479 PMCID: PMC3542340 DOI: 10.1371/journal.pone.0053647] [Citation(s) in RCA: 86] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2012] [Accepted: 12/03/2012] [Indexed: 01/11/2023] Open
Abstract
BACKGROUND/AIMS Deoxynivalenol (DON) is a mycotoxin produced by Fusarium species which is commonly found in temperate regions worldwide as a natural contaminant of cereals. It is of great concern not only in terms of economic losses but also in terms of animal and public health. The digestive tract is the first and main target of this food contaminant and it represents a major site of immune tolerance. A finely tuned cross-talk between the innate and the adaptive immune systems ensures the homeostatic equilibrium between the mucosal immune system and commensal microorganisms. The aim of this study was to analyze the impact of DON on the intestinal immune response. METHODOLOGY Non-transformed intestinal porcine epithelial cells IPEC-1 and porcine jejunal explants were used to investigate the effect of DON on the intestinal immune response and the modulation of naive T cells differentiation. Transcriptomic proteomic and flow cytometry analysis were performed. RESULTS DON induced a pro-inflammatory response with a significant increase of expression of mRNA encoding for IL-8, IL-1α and IL-1β, TNF-α in all used models. Additionally, DON significantly induced the expression of genes involved in the differentiation of Th17 cells (STAT3, IL-17A, IL-6, IL-1β) at the expenses of the pathway of regulatory T cells (Treg) (FoxP3, RALDH1). DON also induced genes related to the pathogenic Th17 cells subset such as IL-23A, IL-22 and IL-21 and not genes related to the regulatory Th17 cells (rTh17) such as TGF-β and IL-10. CONCLUSION DON triggered multiple immune modulatory effects which could be associated with an increased susceptibility to intestinal inflammatory diseases.
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Evaluation of insulin-like growth factor acid-labile subunit as a potential biomarker of effect for deoxynivalenol-induced proinflammatory cytokine expression. Toxicology 2013; 304:192-8. [PMID: 23298694 DOI: 10.1016/j.tox.2012.12.017] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2012] [Revised: 12/19/2012] [Accepted: 12/27/2012] [Indexed: 01/08/2023]
Abstract
Consumption of the trichothecene deoxynivalenol (DON) suppresses growth in experimental animals - an adverse effect that was used to establish the tolerable daily intake for this toxin. DON ingestion has been recently found to suppress plasma insulin-like growth factor acid-labile subunit (IGFALS), a protein essential for growth. Studies were conducted to explore the feasibility of using plasma IGFALS as a biomarker of effect for DON. In the first study, weanling mice were fed 0, 1, 2.5, 5 and 10 ppm DON and weight and plasma IGFALS determined at intervals over 9 wk. Reduced body weight gains were detectable beginning at wk 5 in the 10 ppm dose and wk 7 at the 5 ppm dose. Plasma IGFALS was significantly depressed at wk 5 in the 5 and 10 ppm groups at wk 9 in the 10 ppm group. Depressed IGFALS significantly correlated with reduced body weight at wk 5 and 9. Benchmark dose modeling revealed the BMDL and BMD for plasma IGFALS reduction were 1.1 and 3.0 ppm DON and for weight reduction were 2.1 and 4.5 ppm DON. In the second study, it was demonstrated that mice fed 15 ppm DON diet had significantly less plasma IGFALS than mice fed identical amounts of control diet. Thus DON's influence on IGFALS likely reflects the combined effects of reduced food intake as well as its physiological action involving suppressors of cytokine signaling. Taken together, these findings suggest that plasma IGFALS might be a useful biomarker for DON's adverse effects on growth.
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Trichothecene toxicity in eukaryotes: cellular and molecular mechanisms in plants and animals. Toxicol Lett 2012; 217:149-58. [PMID: 23274714 DOI: 10.1016/j.toxlet.2012.12.003] [Citation(s) in RCA: 102] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2012] [Revised: 12/03/2012] [Accepted: 12/04/2012] [Indexed: 01/24/2023]
Abstract
Trichothecenes are sesquiterpenoid mycotoxins commonly found as contaminants in cereal grains and are a major health and food safety concern due to their toxicity to humans and farm animals. Trichothecenes are predominantly produced by the phytopathogenic Fusarium fungus, and in plants they act as a virulence factor aiding the spread of the fungus during disease development. Known for their inhibitory effect on eukaryotic protein synthesis, trichothecenes also induce oxidative stress, DNA damage and cell cycle arrest and affect cell membrane integrity and function in eukaryotic cells. In animals, trichothecenes can be either immunostimulatory or immunosuppressive and induce apoptosis via mitochondria-mediated or -independent pathway. In plants, trichothecenes induce programmed cell death via production of reactive oxygen species. Recent advances in molecular techniques have led to the elucidation of signal transduction pathways that manifest trichothecene toxicity in eukaryotes. In animals, trichothecenes induce mitogen-activated protein kinase (MAPK) signalling cascades via ribotoxic stress response and/or endoplasmic reticulum stress response. The upstream signalling events that lead to the activation trichothecene-induced ribotoxic stress response are discussed. In plants, trichothecenes exhibit elicitor-like activity leading to the inductions MAPKs and genes involved in oxidative stress, cell death and plant defence response. Trichothecenes might also modulate hormone-mediated defence signalling and abiotic stress signalling in plants.
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Comparison of murine anorectic responses to the 8-ketotrichothecenes 3-acetyldeoxynivalenol, 15-acetyldeoxynivalenol, fusarenon X and nivalenol. Food Chem Toxicol 2012; 50:2056-61. [DOI: 10.1016/j.fct.2012.03.055] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2012] [Revised: 03/12/2012] [Accepted: 03/14/2012] [Indexed: 11/19/2022]
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Wang X, Liu Q, Ihsan A, Huang L, Dai M, Hao H, Cheng G, Liu Z, Wang Y, Yuan Z. JAK/STAT Pathway Plays a Critical Role in the Proinflammatory Gene Expression and Apoptosis of RAW264.7 Cells Induced by Trichothecenes as DON and T-2 Toxin. Toxicol Sci 2012; 127:412-24. [DOI: 10.1093/toxsci/kfs106] [Citation(s) in RCA: 93] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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An analysis of the phosphoproteome of immune cell lines exposed to the immunomodulatory mycotoxin deoxynivalenol. BIOCHIMICA ET BIOPHYSICA ACTA-PROTEINS AND PROTEOMICS 2011; 1814:850-7. [DOI: 10.1016/j.bbapap.2011.04.001] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2010] [Revised: 03/17/2011] [Accepted: 04/01/2011] [Indexed: 11/19/2022]
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Flannery BM, Wu W, Pestka JJ. Characterization of deoxynivalenol-induced anorexia using mouse bioassay. Food Chem Toxicol 2011; 49:1863-9. [PMID: 21575669 DOI: 10.1016/j.fct.2011.05.004] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2011] [Revised: 05/02/2011] [Accepted: 05/04/2011] [Indexed: 11/17/2022]
Abstract
A short-term mouse model was devised to investigate induction of food refusal by the common foodborne trichothecene deoxynivalenol (DON). DON dose-dependently induced anorexia within 2 h of exposure when administered either by intraperitoneal (ip.) injection or by oral gavage. The no observed adverse effect and lowest observed adverse effect levels in this assay were 0.5 and 1 mg/kg bw for ip. exposure and 1 and 2.5 mg/kg bw for oral exposure, respectively. DON's effects on food intake were transient, lasting up to 3h at 1 mg/kg bw and up to 6 h at 5 mg/kg bw. Interestingly, a dose-dependent orexigenic response was observed in the 14 h following the initial 2h food intake measurement. Toxin-treated mice exhibited partial resistance to feed refusal when exposed to DON subsequently after 2 d, but not after 7 d suggesting that this modest tolerance was reversible. The short-term mouse bioassay described here was useful in characterizing DON-induced anorexia and should be applicable to elucidating mechanisms underlying this adverse nutritional effect.
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Affiliation(s)
- Brenna M Flannery
- Department of Food Science and Human Nutrition, Michigan State University, East Lansing, MI 48824-1224, USA
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Kobayashi-Hattori K, Amuzie CJ, Flannery BM, Pestka JJ. Body composition and hormonal effects following exposure to mycotoxin deoxynivalenol in the high-fat diet-induced obese mouse. Mol Nutr Food Res 2011; 55:1070-8. [PMID: 21538849 DOI: 10.1002/mnfr.201000640] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2010] [Revised: 02/06/2011] [Accepted: 02/24/2011] [Indexed: 11/08/2022]
Abstract
SCOPE To characterize the effects of ingesting the common foodborne mycotoxin deoxynivalenol (DON) on body weight and composition in the high-fat (HF) diet-induced obese mice, a model of human obesity. METHODS AND RESULTS Female B6C3F1 mice were initially fed HF diets containing 45% kcal (HF45) or 60% kcal (HF60) as fat for 94 days to induce obesity. Half of each group was either continued on unamended HF diets or fed HF diets containing 10 mg/kg DON (DON-HF45 or DON-HF60) for another 54 days. Additional control mice were fed a low-fat (LF) diet containing 10% kcal as fat for the entire 148-day period. DON induced rapid decreases in body weights and fat mass, which stabilized to those of the LF control within 11 days. These effects corresponded closely to a robust transient decrease in food consumption. While lean body mass did not decline in DON-fed groups, further increases were suppressed. DON exposure reduced plasma insulin, leptin, insulin-like growth factor 1, and insulin-like growth factor acid labile subunit as well as increased hypothalamic mRNA level of the orexigenic agouti-related protein. CONCLUSION DON-mediated effects on body weight, fat mass, food intake, and hormonal levels in obese mice were consistent with a state of chronic energy restriction.
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Affiliation(s)
- Kazuo Kobayashi-Hattori
- Department of Food Science and Human Nutrition, Michigan State University, East Lansing, MI 48824, USA
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da Costa AN, Mijal RS, Keen JN, Findlay JBC, Wild CP. Proteomic analysis of the effects of the immunomodulatory mycotoxin deoxynivalenol. Proteomics 2011; 11:1903-14. [DOI: 10.1002/pmic.201000580] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2010] [Revised: 01/22/2011] [Accepted: 01/31/2011] [Indexed: 01/19/2023]
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Amuzie CJ, Flannery BM, Ulrich AM, Pestka JJ. Effects of deoxynivalenol consumption on body weight and adiposity in the diet-induced obese mouse. JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH. PART A 2011; 74:658-667. [PMID: 21432715 DOI: 10.1080/15287394.2011.539119] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
The potential for the obese state to alter sensitivity to toxic chemicals is poorly understood. In this study, dose-response effects of the trichothecene deoxynivalenol (DON), a common food-borne mycotoxin, were determined on body weight of diet-induced obese mice. In study 1, the effects of feeding adult female B6C3F1 mice a high-fat diet (HFD; 60% kcal from fat) containing 0, 2, 5, or 10 ppm DON for 10 wk on body weight and adiposity were compared. Mice consuming 5 or 10 ppm DON exhibited a 15 and 24% decrease in weight gain and a 50 and 83% reduction in periuterine fat, respectively. In study 2, mice were fed HFD for 8 wk to induce obesity and the effects of consuming HFD + 0, 2, 5, or 10 ppm DON for 8 wk were then determined. Mice fed 5 or 10 ppm DON exhibited a 16 and 23% weight reduction and a 0 and 40% periuterine fat reduction, respectively. In a follow-up experiment, food consumption was measured prior to and after the transition from HFD to HFD + 10 ppm DON. Exposure to DON was found to lower HFD consumption within 1 d, with significant weight loss in DON-fed mice evident after 6 d. In both studies 1 and 2, consumption of 5 or 10 ppm DON diminished circulating levels of insulin-like growth factor acid-labile subunit. Taken together, DON consumption lowered weight gain and produced weight loss in diet-induced obese mice at higher thresholds than that observed previously in normal B6C3F1 mice.
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Affiliation(s)
- C J Amuzie
- Center for Integrative Toxicology, Michigan State University, East Lansing, Michigan, USA
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Pestka J. Toxicological mechanisms and potential health effects of deoxynivalenol and nivalenol. WORLD MYCOTOXIN J 2010. [DOI: 10.3920/wmj2010.1247] [Citation(s) in RCA: 161] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Produced by the mould genus Fusarium, the type B trichothecenes include deoxynivalenol (DON), nivalenol (NIV) and their acetylated precursors. These mycotoxins often contaminate cereal staples, posing a potential threat to public health that is still incompletely understood. Understanding the mechanistic basis by which these toxins cause toxicity in experimental animal models will improve our ability to predict the specific thresholds for adverse human effects as well as the persistence and reversibility of these effects. Acute exposure to DON and NIV causes emesis in susceptible species such as pigs in a manner similar to that observed for certain bacterial enterotoxins. Chronic exposure to these mycotoxins at low doses causes growth retardation and immunotoxicity whereas much higher doses can interfere with reproduction and development. Pathophysiological events that precede these toxicities include altered neuroendocrine responses, upregulation of proinflammatory gene expression, interference with growth hormone signalling and disruption of gastrointestinal tract permeability. The underlying molecular mechanisms involve deregulation of protein synthesis, aberrant intracellular cell signalling, gene transactivation, mRNA stabilisation and programmed cell death. A fusion of basic and translational research is now needed to validate or refine existing risk assessments and regulatory standards for DON and NIV. From the perspective of human health translation, biomarkers have been identified that potentially make it possible to conduct epidemiological studies relating DON consumption to potential adverse human health effects. Of particular interest will be linkages to growth retardation, gastrointestinal illness and chronic autoimmune diseases. Ultimately, such knowledge can facilitate more precise science-based risk assessment and management strategies that protect consumers without reducing availability of critical food sources.
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Affiliation(s)
- J. Pestka
- Deptartment of Food Science and Human Nutrition, Deptartment of Microbiology and Molecular Genetics, Center for Integrative Toxicology, 234 G. Malcolm Trout Building, Michigan State University, East Lansing, MI 48824-1224, USA
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Han Z, Liu X, Ren Y, Luan L, Wu Y. A rapid method with ultra-high-performance liquid chromatography-tandem mass spectrometry for simultaneous determination of five type B trichothecenes in traditional Chinese medicines. J Sep Sci 2010; 33:1923-32. [PMID: 20533344 DOI: 10.1002/jssc.201000094] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
A speedy and selective ultra-HPLC-MS/MS method for simultaneous determination of deoxynivalenol (DON), 3-acetyldeoxynivalenol (3-ADON), 15-ADON, nivalenol and fusarenon X in traditional Chinese medicines (TCMs) was developed. The method was based on one-step sample cleanup using reliable homemade cleanup cartridges. A linear gradient mobile-phase system, consisting of water containing 0.2% aqueous ammonia and acetonitrile/methanol (90:10, v/v) at a flow rate of 0.4 mL/min, and an Acquity UPLC HSS T3 column (100 mm x 2.1 mm, 1.8 microm) were employed to obtain the best resolution of the target analytes. [(13)C(15)]-DON was used as the internal standard to accomplish as accurate as possible quantitation. The established method was further validated by determining the linearity (R(2) > or = 0.9990), sensitivity (LOQ, 0.29-0.99 microg/kg), recovery (88.5-119.5%) and precision (RSD < or = 15.8%). It was shown to be a suitable method for simultaneous determination of DON, 3-ADON, 15-ADON, nivalenol and fusarenon X in various TCM matrices. The utility and practical impact of the method was demonstrated using different TCM samples.
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Affiliation(s)
- Zheng Han
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, P. R. China
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Pestka JJ. Deoxynivalenol: mechanisms of action, human exposure, and toxicological relevance. Arch Toxicol 2010; 84:663-79. [PMID: 20798930 DOI: 10.1007/s00204-010-0579-8] [Citation(s) in RCA: 670] [Impact Index Per Article: 47.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2010] [Accepted: 08/06/2010] [Indexed: 10/19/2022]
Abstract
The trichothecene mycotoxin deoxynivalenol (DON) is produced in wheat, barley and corn following infestation by the fungus Fusarium in the field and during storage. Colloquially known as "vomitoxin" because of its emetic effects in pigs, DON has been associated with human gastroenteritis. Since DON is commonly detected in cereal foods, there are significant questions regarding the risks of acute poisoning and chronic effects posed to persons ingesting this trichothecene. A further challenge is how to best manage perceived risks without rendering critical food staples unavailable to an ever-expanding world population. In experimental animal models, acute DON poisoning causes emesis, whereas chronic low-dose exposure elicits anorexia, growth retardation, immunotoxicity as well as impaired reproduction and development resulting from maternal toxicity. Pathophysiologic effects associated with DON include altered neuroendocrine signaling, proinflammatory gene induction, disruption of the growth hormone axis, and altered gut integrity. At the cellular level, DON induces ribotoxic stress thereby disrupting macromolecule synthesis, cell signaling, differentiation, proliferation, and death. There is a need to better understand the mechanistic linkages between these early dose-dependent molecular effects and relevant pathological sequelae. Epidemiological studies are needed to determine if relationships exist between consumption of high DON levels and incidence of both gastroenteritis and potential chronic diseases. From the perspective of human health translation, a particularly exciting development is the availability of biomarkers of exposure (e.g. DON glucuronide) and effect (e.g. IGF1) now make it possible to study the relationship between DON consumption and growth retardation in susceptible human populations such as children and vegetarians. Ultimately, a fusion of basic and translational research is needed to validate or refine existing risk assessments and regulatory standards for this common mycotoxin.
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Affiliation(s)
- James J Pestka
- Department of Microbiology and Molecular Genetics, Michigan State University, East Lansing, MI 48824, USA.
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Sahu SC, O'Donnell MW, Wiesenfeld PL. Comparative hepatotoxicity of deoxynivalenol in rat, mouse and human liver cells in culture. J Appl Toxicol 2010; 30:566-73. [DOI: 10.1002/jat.1527] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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Deoxynivalenol-induced proinflammatory gene expression: mechanisms and pathological sequelae. Toxins (Basel) 2010; 2:1300-17. [PMID: 22069639 PMCID: PMC3153246 DOI: 10.3390/toxins2061300] [Citation(s) in RCA: 145] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2010] [Revised: 05/25/2010] [Accepted: 05/28/2010] [Indexed: 01/18/2023] Open
Abstract
The trichothecene mycotoxin deoxynivalenol (DON) is commonly encountered in human cereal foods throughout the world as a result of infestation of grains in the field and in storage by the fungus Fusarium. Significant questions remain regarding the risks posed to humans from acute and chronic DON ingestion, and how to manage these risks without imperiling access to nutritionally important food commodities. Modulation of the innate immune system appears particularly critical to DON's toxic effects. Specifically, DON induces activation of mitogen-activated protein kinases (MAPKs) in macrophages and monocytes, which mediate robust induction of proinflammatory gene expression-effects that can be recapitulated in intact animals. The initiating mechanisms for DON-induced ribotoxic stress response appear to involve the (1) activation of constitutive protein kinases on the damaged ribosome and (2) autophagy of the chaperone GRP78 with consequent activation of the ER stress response. Pathological sequelae resulting from chronic low dose exposure include anorexia, impaired weight gain, growth hormone dysregulation and aberrant IgA production whereas acute high dose exposure evokes gastroenteritis, emesis and a shock-like syndrome. Taken together, the capacity of DON to evoke ribotoxic stress in mononuclear phagocytes contributes significantly to its acute and chronic toxic effects in vivo. It is anticipated that these investigations will enable the identification of robust biomarkers of effect that will be applicable to epidemiological studies of the human health effects of this common mycotoxin.
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Affiliation(s)
- Kenneth A Voss
- Toxicology and Mycotoxin Research Unit, United States Department of Agriculture, Agricultural Research Service, Athens, Georgia 30604-5677, USA.
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Amuzie CJ, Pestka JJ. Suppression of insulin-like growth factor acid-labile subunit expression--a novel mechanism for deoxynivalenol-induced growth retardation. Toxicol Sci 2009; 113:412-21. [PMID: 19805407 DOI: 10.1093/toxsci/kfp225] [Citation(s) in RCA: 64] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
Consumption of deoxynivalenol (DON), a trichothecene mycotoxin commonly detected in cereal-based foods, causes impaired growth in many animal species. While growth retardation is used as a basis for regulating DON levels in human food, the underlying mechanisms remain poorly understood. Oral exposure of mice to DON rapidly induces multiorgan expression of proinflammatory cytokines, and this is followed by upregulation of several suppressors of cytokine signaling (SOCS), some of which are capable of impairing growth hormone (GH) signaling. The purpose of this study was to test the hypothesis that impairment of the GH axis precedes DON-induced growth retardation in the mouse. Subchronic dietary exposure of young (4-week old) mice to DON (20 ppm) over a period of 2-8 weeks was found to (1) impair weight gain, (2) result in a steady-state plasma DON concentration (40-60 ng/ml), (3) downregulate hepatic insulin-like growth factor acid-labile subunit (IGFALS) mRNA expression, and (4) reduce circulating insulin-like growth factor 1 (IGF1) and IGFALS levels. Acute oral exposure to DON at 0.5-12.5 mg/kg body weight (bw) markedly suppressed hepatic IGFALS mRNA levels within 2 h in a dose-dependent fashion, whereas 0.1 mg/kg bw was without effect. DON-induced IGFALS mRNA upregulation occurred both with and without exogenous GH treatment. These latter effects co-occurred with robust hepatic suppressors of cytokine signaling 3 upregulation. Taken together, these data suggest that oral DON exposure perturbs GH axis by suppressing two clinically relevant growth-related proteins, IGFALS and IGF1. Both have potential to serve as biomarkers of effect in populations exposed to this common foodborne mycotoxin.
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Affiliation(s)
- Chidozie J Amuzie
- Comparative Medicine and Integrative Biology Program, Michigan State University, East Lansing, Michigan 48824, USA
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