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Zhou Z, Luo D, Li M, Lao G, Zhou Z, Dinnyés A, Xu W, Sun Q. A Novel Multicellular Placental Barrier Model to Investigate the Effect of Maternal Aflatoxin B 1 Exposure on Fetal-Side Neural Stem Cells. Toxins (Basel) 2023; 15:toxins15050312. [PMID: 37235346 DOI: 10.3390/toxins15050312] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Revised: 04/20/2023] [Accepted: 04/21/2023] [Indexed: 05/28/2023] Open
Abstract
Ingestion of food toxins such as aflatoxin B1 (AFB1) during pregnancy may impair fetal neurodevelopment. However, animal model results may not be accurate due to the species' differences, and testing on humans is ethically impermissible. Here, we developed an in vitro human maternal-fetal multicellular model composed of a human hepatic compartment, a bilayer placental barrier, and a human fetal central nervous system compartment using neural stem cells (NSCs) to investigate the effect of AFB1 on fetal-side NSCs. AFB1 passed through the HepG2 hepatocellular carcinoma cells to mimic the maternal metabolic effects. Importantly, even at the limited concentration (0.0641 ± 0.0046 μM) of AFB1, close to the national safety level standard of China (GB-2761-2011), the mixture of AFB1 crossing the placental barrier induced NSC apoptosis. The level of reactive oxygen species in NSCs was significantly elevated and the cell membrane was damaged, causing the release of intracellular lactate dehydrogenase (p < 0.05). The comet experiment and γ-H2AX immunofluorescence assay showed that AFB1 caused significant DNA damage to NSCs (p < 0.05). This study provided a new model for the toxicological evaluation of the effect of food mycotoxin exposure during pregnancy on fetal neurodevelopment.
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Affiliation(s)
- Zhiwei Zhou
- Key Laboratory of Bio-Resources and Eco-Environment Ministry of the Education, College of Life Sciences, Sichuan University, Chengdu 610064, China
| | - Dongmei Luo
- Key Laboratory of Bio-Resources and Eco-Environment Ministry of the Education, College of Life Sciences, Sichuan University, Chengdu 610064, China
| | - Mengxue Li
- Key Laboratory of Bio-Resources and Eco-Environment Ministry of the Education, College of Life Sciences, Sichuan University, Chengdu 610064, China
| | - Guangjie Lao
- Key Laboratory of Bio-Resources and Eco-Environment Ministry of the Education, College of Life Sciences, Sichuan University, Chengdu 610064, China
| | - Zhiqiang Zhou
- Department of Food Engineering, Sichuan University, Chengdu 610064, China
| | - András Dinnyés
- Key Laboratory of Bio-Resources and Eco-Environment Ministry of the Education, College of Life Sciences, Sichuan University, Chengdu 610064, China
- BioTalentum Ltd., Aulich Lajos Str. 26, 2100 Godollo, Hungary
- Department of Cell Biology and Molecular Medicine, University of Szeged, 6720 Szeged, Hungary
| | - Wenming Xu
- Key Laboratory of Birth Defects and Related Diseases of Women and Children, Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu 610064, China
- Reproductive Endocrinology and Regulation Laboratory West China Second University Hospital, Sichuan University, Chengdu 610064, China
| | - Qun Sun
- Key Laboratory of Bio-Resources and Eco-Environment Ministry of the Education, College of Life Sciences, Sichuan University, Chengdu 610064, China
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Toutounchi NS, Braber S, Land BV, Thijssen S, Garssen J, Folkerts G, Hogenkamp A. Deoxynivalenol exposure during pregnancy has adverse effects on placental structure and immunity in mice model. Reprod Toxicol 2022; 112:109-118. [PMID: 35840118 DOI: 10.1016/j.reprotox.2022.07.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2021] [Revised: 06/10/2022] [Accepted: 07/06/2022] [Indexed: 11/30/2022]
Abstract
Deoxynivalenol (DON), a highly prevalent food contaminant, is known to induce reproductive and immunotoxicity in humans upon exposure. The present study focused on the consequences of exposure to DON during pregnancy for placental barrier and immune function, as well as fetal survival. Female mice received diets contaminated with DON (6.25 and 12.5 mg/kg of diet), starting immediately after mating until the end of the experiment. On day 17 of pregnancy the animals were killed, and maternal and fetal samples were collected for further analysis. Feeding on DON-contaminated diets decreased fetal survival, and DON was detected at significant levels in the fetus. Placentae from DON-exposed mice revealed a reduction in expression of junctional proteins, ZO-1, E-cadherin and claudins, upregulation of AHR mRNA expressions, and increase in IFN-ꝩ, IL-6 and IL-4 production. In conclusion, results of this study demonstrate harmful effects of DON on the course of pregnancy and fetal survival, which might be due to immunological changes in maternal immune organs and placenta. Altogether, these data underline the importance of the quality of maternal diet during pregnancy as they clearly demonstrate the potential harmful effects of a commonly present food-contaminant.
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Affiliation(s)
- Negisa Seyed Toutounchi
- Division of Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Faculty of Science, Utrecht University, Utrecht, the Netherlands
| | - Saskia Braber
- Division of Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Faculty of Science, Utrecht University, Utrecht, the Netherlands
| | - Belinda Van't Land
- Department of Immunology, Danone Nutricia Research, Utrecht, the Netherlands; Laboratory of Translational Immunology, Wilhelmina Children's Hospital, University Medical Center Utrecht, Utrecht, Netherlands
| | - Suzan Thijssen
- Division of Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Faculty of Science, Utrecht University, Utrecht, the Netherlands
| | - Johan Garssen
- Division of Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Faculty of Science, Utrecht University, Utrecht, the Netherlands; Department of Immunology, Danone Nutricia Research, Utrecht, the Netherlands
| | - Gert Folkerts
- Division of Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Faculty of Science, Utrecht University, Utrecht, the Netherlands
| | - Astrid Hogenkamp
- Division of Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Faculty of Science, Utrecht University, Utrecht, the Netherlands.
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3
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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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4
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Cai J, Wang N, Chen J, Wu A, Nepovimova E, Valis M, Long M, Wu W, Kuca K. Bacillus velezensis A2 Inhibited the Cecal Inflammation Induced by Zearalenone by Regulating Intestinal Flora and Short-Chain Fatty Acids. Front Nutr 2022; 9:806115. [PMID: 35360686 PMCID: PMC8963806 DOI: 10.3389/fnut.2022.806115] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2021] [Accepted: 02/09/2022] [Indexed: 12/16/2022] Open
Abstract
Zearalenone (ZEA) as an estrogen-like mycotoxin can cause the inflammatory injury of the cecum. How to reduce the harm that ZEA causes to humans and animals is a current concern for researchers. In this study, we aimed to ascertain whether Bacillus velezensis A2 (A2) could alleviate injury caused by ZEA by regulating the intestinal flora and the content of short chain fatty acids in the cecum among mice. Our results showed that Bacillus velezensis A2 improved the fold height, myometrial thickness, and crypt depth of the cecum induced by ZEA. Enzyme-linked immunosorbent assay and Western blotting results showed that A2 could decrease the ZEA-induced increase in expression levels of IL-2, IL-6, IFN-γ, TNF-α, and FC. Studies also showed that A2 increased the content of SCFA in the cecum which was decreased by ZEA. The microbial communities in the cecum were changed when given ZEA or A2. A2 was found to greatly reduce the ZEN-induced increase in the relative abundance of p_Actinobacteria, p_Protebacteria, o_Coriobacteriales, g_Anaerotruncus, g_Pseudoflavonifractor, g_Lachnoclostridium, g_Enterorhabdus, and f_Oscillospiraceae, and increase the ZEN-induced decrease in the relative abundance of f_Coriobacteriales. Results indicated that Bacillus velezensis A2 can largely ameliorate the intestinal inflammatory injury induced by ZEA in mice by regulating the microflora and short chain fatty acids content.
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Affiliation(s)
- Jing Cai
- Key Laboratory of Zoonosis of Liaoning Province, College of Animal Science and Veterinary Medicine, Shenyang Agricultural University, Shenyang, China
| | - Nan Wang
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
| | - Jia Chen
- Key Laboratory of Zoonosis of Liaoning Province, College of Animal Science and Veterinary Medicine, Shenyang Agricultural University, Shenyang, 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, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, China
| | - Eugenie Nepovimova
- Department of Chemistry, Faculty of Science, University of Hradec Kralove, Hradec Kralove, Czechia
| | - Martin Valis
- Department of Neurology, Faculty of Medicine and University Hospital Hradec Kralove, Charles University, Hradec Kralove, Czechia
| | - Miao Long
- Key Laboratory of Zoonosis of Liaoning Province, College of Animal Science and Veterinary Medicine, Shenyang Agricultural University, Shenyang, China
- *Correspondence: Miao Long,
| | - Wenda Wu
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
- Department of Chemistry, Faculty of Science, University of Hradec Kralove, Hradec Kralove, Czechia
- Wenda Wu,
| | - Kamil Kuca
- Department of Chemistry, Faculty of Science, University of Hradec Kralove, Hradec Kralove, Czechia
- Biomedical Research Center, University Hospital Hradec Kralove, Hradec Kralove, Czechia
- Kamil Kuca, ;
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5
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Toutounchi NS, Braber S, Hogenkamp A, Varasteh S, Cai Y, Wehkamp T, Tims S, Leusink-Muis T, van Ark I, Wiertsema S, Stahl B, Kraneveld AD, Garssen J, Folkerts G, van’t Land B. Human Milk Oligosaccharide 3'-GL Improves Influenza-Specific Vaccination Responsiveness and Immunity after Deoxynivalenol Exposure in Preclinical Models. Nutrients 2021; 13:3190. [PMID: 34579070 PMCID: PMC8466816 DOI: 10.3390/nu13093190] [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: 08/16/2021] [Revised: 09/03/2021] [Accepted: 09/10/2021] [Indexed: 01/15/2023] Open
Abstract
Deoxynivalenol (DON), a highly prevalent mycotoxin food contaminant, is known to have immunotoxic effects. In the current study, the potential of dietary interventions with specific mixtures of trans-galactosyl-oligosaccharides (TOS) to alleviate these effects were assessed in a murine influenza vaccination model. Vaccine-specific immune responses were measured in C57Bl/6JOlaHsd mice fed diets containing DON, TOS or a combination, starting 2 weeks before the first vaccination. The direct effects of TOS and its main oligosaccharide, 3'-galactosyl-lactose (3'-GL), on DON-induced damage were studied in Caco-2 cells, as an in vitro model of the intestinal epithelial barrier. Exposure to DON significantly reduced vaccine-specific immune responses and the percentages of Tbet+ Th1 cells and B cells in the spleen. DON significantly altered epithelial structure and integrity in the ileum and reduced the SCFA levels in the cecum. Adding TOS into DON-containing diets significantly improved vaccine-specific immune responses, restored the immune cell balance in the spleen and increased SCFA concentrations in the cecum. Incubating Caco-2 cells with TOS and 3'-GL in vitro further confirmed their protective effects against DON-induced barrier disruption, supporting immune modulation. Overall, dietary intervention with TOS can attenuate the adverse effects of DON on Th1-mediated immune responses and gut homeostasis. These beneficial properties might be linked to the high levels of 3'-GL in TOS.
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Affiliation(s)
- Negisa Seyed Toutounchi
- Division of Pharmacology, Faculty of Science, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, 3584 CG Utrecht, The Netherlands; (N.S.T.); (S.B.); (A.H.); (S.V.); (Y.C.); (T.L.-M.); (I.v.A.); (B.S.); (A.D.K.); (J.G.); (G.F.)
| | - Saskia Braber
- Division of Pharmacology, Faculty of Science, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, 3584 CG Utrecht, The Netherlands; (N.S.T.); (S.B.); (A.H.); (S.V.); (Y.C.); (T.L.-M.); (I.v.A.); (B.S.); (A.D.K.); (J.G.); (G.F.)
| | - Astrid Hogenkamp
- Division of Pharmacology, Faculty of Science, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, 3584 CG Utrecht, The Netherlands; (N.S.T.); (S.B.); (A.H.); (S.V.); (Y.C.); (T.L.-M.); (I.v.A.); (B.S.); (A.D.K.); (J.G.); (G.F.)
| | - Soheil Varasteh
- Division of Pharmacology, Faculty of Science, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, 3584 CG Utrecht, The Netherlands; (N.S.T.); (S.B.); (A.H.); (S.V.); (Y.C.); (T.L.-M.); (I.v.A.); (B.S.); (A.D.K.); (J.G.); (G.F.)
| | - Yang Cai
- Division of Pharmacology, Faculty of Science, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, 3584 CG Utrecht, The Netherlands; (N.S.T.); (S.B.); (A.H.); (S.V.); (Y.C.); (T.L.-M.); (I.v.A.); (B.S.); (A.D.K.); (J.G.); (G.F.)
| | - Tjalling Wehkamp
- Danone Nutricia Research, 3584 CG Utrecht, The Netherlands; (T.W.); (S.T.); (S.W.)
| | - Sebastian Tims
- Danone Nutricia Research, 3584 CG Utrecht, The Netherlands; (T.W.); (S.T.); (S.W.)
| | - Thea Leusink-Muis
- Division of Pharmacology, Faculty of Science, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, 3584 CG Utrecht, The Netherlands; (N.S.T.); (S.B.); (A.H.); (S.V.); (Y.C.); (T.L.-M.); (I.v.A.); (B.S.); (A.D.K.); (J.G.); (G.F.)
| | - Ingrid van Ark
- Division of Pharmacology, Faculty of Science, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, 3584 CG Utrecht, The Netherlands; (N.S.T.); (S.B.); (A.H.); (S.V.); (Y.C.); (T.L.-M.); (I.v.A.); (B.S.); (A.D.K.); (J.G.); (G.F.)
| | - Selma Wiertsema
- Danone Nutricia Research, 3584 CG Utrecht, The Netherlands; (T.W.); (S.T.); (S.W.)
| | - Bernd Stahl
- Division of Pharmacology, Faculty of Science, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, 3584 CG Utrecht, The Netherlands; (N.S.T.); (S.B.); (A.H.); (S.V.); (Y.C.); (T.L.-M.); (I.v.A.); (B.S.); (A.D.K.); (J.G.); (G.F.)
- Danone Nutricia Research, 3584 CG Utrecht, The Netherlands; (T.W.); (S.T.); (S.W.)
| | - Aletta D. Kraneveld
- Division of Pharmacology, Faculty of Science, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, 3584 CG Utrecht, The Netherlands; (N.S.T.); (S.B.); (A.H.); (S.V.); (Y.C.); (T.L.-M.); (I.v.A.); (B.S.); (A.D.K.); (J.G.); (G.F.)
| | - Johan Garssen
- Division of Pharmacology, Faculty of Science, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, 3584 CG Utrecht, The Netherlands; (N.S.T.); (S.B.); (A.H.); (S.V.); (Y.C.); (T.L.-M.); (I.v.A.); (B.S.); (A.D.K.); (J.G.); (G.F.)
- Danone Nutricia Research, 3584 CG Utrecht, The Netherlands; (T.W.); (S.T.); (S.W.)
| | - Gert Folkerts
- Division of Pharmacology, Faculty of Science, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, 3584 CG Utrecht, The Netherlands; (N.S.T.); (S.B.); (A.H.); (S.V.); (Y.C.); (T.L.-M.); (I.v.A.); (B.S.); (A.D.K.); (J.G.); (G.F.)
| | - Belinda van’t Land
- Danone Nutricia Research, 3584 CG Utrecht, The Netherlands; (T.W.); (S.T.); (S.W.)
- Center of Translational Immunology, Wilhelmina Children’s Hospital, University Medical Center Utrecht, 3584 CG Utrecht, The Netherlands
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6
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Deng L, Shi Y, Liu P, Wu S, Lv Y, Xu H, Chen X. GeGen QinLian decoction alleviate influenza virus infectious pneumonia through intestinal flora. Biomed Pharmacother 2021; 141:111896. [PMID: 34246956 DOI: 10.1016/j.biopha.2021.111896] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Revised: 06/18/2021] [Accepted: 06/29/2021] [Indexed: 12/26/2022] Open
Abstract
Influenza in humans is often accompanied by gastroenteritis-like symptoms. GeGen QinLian decoction (GQD), a Chinese herb formula, has been widely used to treat infectious diarrhea for centuries and has the effect of restoring intestinal flora. Studies have also reported that GQD were used to treat patients with influenza. However, whether regulating the intestinal flora is one of the ways GQD treats influenza has not been confirmed. In present research, we conducted a systemic pharmacological study, and the results showed that GQD may acts through multiple targets and pathways. In influenza-infected mice, GQD treatment reduced mortality and lung inflammation. Most importantly, the mortality and lung inflammation were also reduced in influenza-infected mice that have undergone fecal microbiota transplantation (FMT) from GQD (FMT-GQD) treated mice. GQD treatment or FMT-GQD treatment restores the intestinal flora, resulting in an increase in Akkermansia_muciniphila, Desulfovibrio_C21_c20 and Lactobacillus_salivarius, and a decrease in Escherichia_coli. FMT-GQD treatment inhibited the NOD/RIP2/NF-κB signaling pathway in the intestine and affected the expression of downstream related inflammatory cytokines in mesenteric lymph nodes (mLNs) and serum. In addition, FMT-GQD treatment showed systemic protection by restraining the inflammatory differentiation of CD4+ T cells. In conclusion, our study shows that GQD can affect systemic immunity, at least in part, through the intestinal flora, thereby protect the mice against influenza virus infectious pneumonia.
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Affiliation(s)
- Li Deng
- College of Traditional Chinese Medicine, Jinan University, Guangzhou 510632, China
| | - Yucong Shi
- College of Traditional Chinese Medicine, Jinan University, Guangzhou 510632, China
| | - Pei Liu
- College of Traditional Chinese Medicine, Jinan University, Guangzhou 510632, China
| | - Sizhi Wu
- College of Traditional Chinese Medicine, Jinan University, Guangzhou 510632, China
| | - Yiwen Lv
- College of Traditional Chinese Medicine, Jinan University, Guangzhou 510632, China
| | - Huachong Xu
- College of Traditional Chinese Medicine, Jinan University, Guangzhou 510632, China.
| | - Xiaoyin Chen
- College of Traditional Chinese Medicine, Jinan University, Guangzhou 510632, China.
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7
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Zearalenone and the Immune Response. Toxins (Basel) 2021; 13:toxins13040248. [PMID: 33807171 PMCID: PMC8066068 DOI: 10.3390/toxins13040248] [Citation(s) in RCA: 44] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2021] [Revised: 03/20/2021] [Accepted: 03/27/2021] [Indexed: 12/12/2022] Open
Abstract
Zearalenone (ZEA) is an estrogenic fusariotoxin, being classified as a phytoestrogen, or as a mycoestrogen. ZEA and its metabolites are able to bind to estrogen receptors, 17β-estradiol specific receptors, leading to reproductive disorders which include low fertility, abnormal fetal development, reduced litter size and modification at the level of reproductive hormones especially in female pigs. ZEA has also significant effects on immune response with immunostimulatory or immunosuppressive results. This review presents the effects of ZEA and its derivatives on all levels of the immune response such as innate immunity with its principal component inflammatory response as well as the acquired immunity with two components, humoral and cellular immune response. The mechanisms involved by ZEA in triggering its effects are addressed. The review cited more than 150 publications and discuss the results obtained from in vitro and in vivo experiments exploring the immunotoxicity produced by ZEA on different type of immune cells (phagocytes related to innate immunity and lymphocytes related to acquired immunity) as well as on immune organs. The review indicates that despite the increasing number of studies analyzing the mechanisms used by ZEA to modulate the immune response the available data are unsubstantial and needs further works.
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8
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Tran VN, Viktorová J, Ruml T. Mycotoxins: Biotransformation and Bioavailability Assessment Using Caco-2 Cell Monolayer. Toxins (Basel) 2020; 12:E628. [PMID: 33008111 PMCID: PMC7601793 DOI: 10.3390/toxins12100628] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2020] [Revised: 08/24/2020] [Accepted: 09/18/2020] [Indexed: 12/17/2022] Open
Abstract
The determination of mycotoxins content in food is not sufficient for the prediction of their potential in vivo cytotoxicity because it does not reflect their bioavailability and mutual interactions within complex matrices, which may significantly alter the toxic effects. Moreover, many mycotoxins undergo biotransformation and metabolization during the intestinal absorption process. Biotransformation is predominantly the conversion of mycotoxins meditated by cytochrome P450 and other enzymes. This should transform the toxins to nontoxic metabolites but it may possibly result in unexpectedly high toxicity. Therefore, the verification of biotransformation and bioavailability provides valuable information to correctly interpret occurrence data and biomonitoring results. Among all of the methods available, the in vitro models using monolayer formed by epithelial cells from the human colon (Caco-2 cell) have been extensively used for evaluating the permeability, bioavailability, intestinal transport, and metabolism of toxic and biologically active compounds. Here, the strengths and limitations of both in vivo and in vitro techniques used to determine bioavailability are reviewed, along with current detailed data about biotransformation of mycotoxins. Furthermore, the molecular mechanism of mycotoxin effects is also discussed regarding the disorder of intestinal barrier integrity induced by mycotoxins.
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Affiliation(s)
| | | | - Tomáš Ruml
- Department of Biochemistry and Microbiology, University of Chemistry and Technology, Technicka 3, 166 28 Prague 6, Czech Republic; (V.N.T.); (J.V.)
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9
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Abstract
Pregnancy is not a disease condition; it is a physiological process. However, the risks prevail until this process ends. While many pregnancies and births culminate without any problems, a considerable number of them end up with undesirable pregnancy outcomes such as intrauterine growth retardation, preterm labor, and low birth weight infants. Although the causes of these negative pregnancy outcomes are not fully understood, they occur in a multifactorial ways. One of the important issues here is the foods consumed by women with pregnancy. Pregnant women should avoid consuming fast food products, alcohol, or tobacco, which are already known to be harmful to human health, as well as harmful natural products containing mycotoxins. Mycotoxins are natural toxins with a wide range of chemical structures. While people can get these toxins directly from agricultural products, they can also be exposed indirectly through products of animals fed with contaminated feed. Mycotoxins have negative impacts on human health with their carcinogenic, teratogenic, and mutagenic effects. There are some evidences that mycotoxins can lead to negative pregnancy outcomes. These possible negative effects have been determined to be lower birth weight, neonatal jaundice, fetal loss, fetal defects, preterm birth, maternal anemia, and preeclampsia. However, more evidence is needed on this topic. This review aims to investigate the adverse effects of mycotoxins during pregnancy.
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Affiliation(s)
| | | | - Serkan Yilmaz
- Faculty of Nursing, Department of Midwifery, University of Ankara, Ankara, Turkey.,Faculty of Health Sciences, University of Ankara, Ankara, Turkey
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