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Pierron A, Kleber A, Mayer E, Gerner W. Effect of DON and ZEN and their metabolites DOM-1 and HZEN on B cell proliferation and antibody production. Front Immunol 2024; 15:1338937. [PMID: 38449861 PMCID: PMC10915041 DOI: 10.3389/fimmu.2024.1338937] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2023] [Accepted: 01/24/2024] [Indexed: 03/08/2024] Open
Abstract
Introduction The mycotoxins deoxynivalenol (DON) and zearalenone (ZEN), produced by Fusarium fungi, are frequently found in the cereal-rich diet of pigs and can modulate the immune system. Some enzymes or bacteria present in the digestive tract can de-epoxydize DON to deepoxy-deoxynivalenol (DOM-1) and biotransform ZEN into hydrolyzed ZEN (HZEN). The effects of these metabolites on immune cells, particularly with respect to the vaccine responses, are poorly documented. The aim of this study was to address the impact of DON and ZEN and their respective derivatives, on proliferation, and antibody production of porcine B cells in vitro. Methods Peripheral blood mononuclear cells (PBMCs), isolated from healthy pigs, were stimulated with the Toll-like receptor (TLR) 7/8-agonist Resiquimod (R848) or the TLR/1/2-agonist Pam3Cys-SKKKK in combination with DON [0.1-1.6 µM] or DOM-1 [1.6 µM and 16 µM] and ZEN [2.5-40 µM] or HZEN [40 µM]. Results A strong decrease in B-cell proliferation was observed at DON concentrations equal to or exceeding 0.8 µM and at ZEN concentrations equal to or exceeding 20 µM. Treatment with 1.6 µM DON or 40 µM ZEN led to almost a complete loss of live CD79α+ B cells. Moreover, CD21 expression of proliferating IgG+ and IgM+ B-cell subsets was decreased at DON concentrations equal to and exceeding 0.4 µM and at ZEN concentrations equal to or exceeding 10 µM. ELISpot assays revealed a decrease of IgG-secreting B cells at concentrations of and exceeding 0.4 µM and at ZEN concentrations equal to and exceeding 10 µM. ELISA assays showed a decrease of IgM, IgG, and IgA secretion at concentrations equal to or exceeding 0.4 µM DON. ZEN reduced IgM secretion at 20-40 µM (both R848 and Pam3Cys-SKKKK), IgG secretion at 40 µM (both R848 and Pam3Cys-SKKKK) and IgA secretion at 20-40 µM. Discussion Our in vitro experiments show that while DON and ZEN impair immunoglobulin production and B-cell proliferation, this effect is abrogated by HZEN and DOM-1.
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Affiliation(s)
- Alix Pierron
- Department of Pathobiology, Institute of Immunology, University of Veterinary Medicine, Vienna, Austria
| | - Alexandra Kleber
- dsm-firmenich, Animal Nutrition and Health R&D Center, Tulln, Austria
| | - Elisabeth Mayer
- dsm-firmenich, Animal Nutrition and Health R&D Center, Tulln, Austria
| | - Wilhelm Gerner
- Department of Pathobiology, Institute of Immunology, University of Veterinary Medicine, Vienna, Austria
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Pierron A, Vatzia E, Stadler M, Mair KH, Schmidt S, Stas MR, Dürlinger S, Kreutzmann H, Knecht C, Balka G, Lagler J, Zaruba M, Rümenapf T, Saalmüller A, Mayer E, Ladinig A, Gerner W. Influence of deoxynivalenol-contaminated feed on the immune response of pigs after PRRSV vaccination and infection. Arch Toxicol 2023; 97:1079-1089. [PMID: 36781434 PMCID: PMC10025202 DOI: 10.1007/s00204-023-03449-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2022] [Accepted: 01/24/2023] [Indexed: 02/15/2023]
Abstract
The impact of the Fusarium mycotoxin deoxynivalenol (DON) on the immune response against porcine reproductive and respiratory syndrome virus (PRRSV) vaccination and infection was investigated. Forty-two weaned piglets were separated into seven groups and received three different diets: Low DON (1.09 ppm), High DON (2.81 ppm) or No DON. These three treatments were split further into either vaccinated (Ingelvac PRRSFLEX EU) and challenged with PRRSV 28 days post-vaccination, or only infected at day 28. A seventh group received no DON, no vaccination, and no infection. Two weeks after challenge infection, when pigs were euthanized, the number of IFN-γ producing lymphocytes in the blood of vaccinated animals was lower in pigs on High DON compared to animals on Low DON or No DON. Intracellular cytokine staining showed that vaccinated animals fed with the Low DON diet had higher frequencies of TNF-α/IFN-γ co-producing CD4+ T cells than the other two vaccinated groups, particularly in lung tissue. Vaccinated animals on High DON had similar viral loads in the lung as the non-vaccinated groups, but several animals of the Low DON or No DON group receiving vaccination had reduced titers. In these two groups, there was a negative correlation between lung virus titers and vaccine-specific TNF-α/IFN-γ co-producing CD4+ T cells located either in lung tissue or blood. These results indicate that after PRRSV vaccination and infection, high levels of DON negatively influence immune parameters and clearance of the virus, whereas low DON concentrations have immunomodulatory effects.
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Affiliation(s)
- Alix Pierron
- Institute of Immunology, Department of Pathobiology, University of Veterinary Medicine, Vienna, Austria
- ENVT (National Veterinary School of Toulouse), IHAP, Toulouse, France
| | - Eleni Vatzia
- Institute of Immunology, Department of Pathobiology, University of Veterinary Medicine, Vienna, Austria
- The Pirbright Institute, Woking, UK
| | - Maria Stadler
- Institute of Immunology, Department of Pathobiology, University of Veterinary Medicine, Vienna, Austria
| | - Kerstin H Mair
- Institute of Immunology, Department of Pathobiology, University of Veterinary Medicine, Vienna, Austria
| | - Selma Schmidt
- Institute of Immunology, Department of Pathobiology, University of Veterinary Medicine, Vienna, Austria
- The Pirbright Institute, Woking, UK
| | - Melissa R Stas
- University Clinic for Swine, Department for Farm Animals and Veterinary Public Health, University of Veterinary Medicine, Vienna, Austria
| | - Sophie Dürlinger
- University Clinic for Swine, Department for Farm Animals and Veterinary Public Health, University of Veterinary Medicine, Vienna, Austria
| | - Heinrich Kreutzmann
- University Clinic for Swine, Department for Farm Animals and Veterinary Public Health, University of Veterinary Medicine, Vienna, Austria
| | - Christian Knecht
- University Clinic for Swine, Department for Farm Animals and Veterinary Public Health, University of Veterinary Medicine, Vienna, Austria
| | - Gyula Balka
- Department of Pathology, University of Veterinary Medicine, Budapest, Hungary
- National Laboratory of Infectious Animal Diseases, Antimicrobial Resistance, Veterinary Public Health and Food Chain Safety, University of Veterinary Medicine, Budapest, Hungary
| | - Julia Lagler
- Institute of Immunology, Department of Pathobiology, University of Veterinary Medicine, Vienna, Austria
- Institute of Virology, University of Zurich, Zurich, Switzerland
| | - Marianne Zaruba
- Institute of Virology, Department of Pathobiology, University of Veterinary Medicine, Vienna, Austria
| | - Till Rümenapf
- Institute of Virology, Department of Pathobiology, University of Veterinary Medicine, Vienna, Austria
| | - Armin Saalmüller
- Institute of Immunology, Department of Pathobiology, University of Veterinary Medicine, Vienna, Austria
| | | | - Andrea Ladinig
- University Clinic for Swine, Department for Farm Animals and Veterinary Public Health, University of Veterinary Medicine, Vienna, Austria
| | - Wilhelm Gerner
- Institute of Immunology, Department of Pathobiology, University of Veterinary Medicine, Vienna, Austria.
- The Pirbright Institute, Woking, UK.
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3
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Mercier J, Osman M, Bouiller K, Tipirdamaz C, Gendrin V, Chirouze C, Lepiller Q, Bouvier E, Royer P, Pierron A, Toko L, Plantin J, Kadiane‐Oussou N, Zayet S, Klopfenstein T. Olfactory dysfunction in COVID-19, new insights from a cohort of 353 patients: The ANOSVID study. J Med Virol 2022; 94:4762-4775. [PMID: 35672249 PMCID: PMC9347548 DOI: 10.1002/jmv.27918] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Revised: 03/15/2022] [Accepted: 06/05/2022] [Indexed: 12/15/2022]
Abstract
Olfactory disorders (OD) pathogenesis, underlying conditions, and prognostic in coronavirus disease 2019 (COVID-19) remain partially described. ANOSVID is a retrospective study in Nord Franche-Comté Hospital (France) that included COVID-19 patients from March 1 2020 to May 31 2020. The aim was to compare COVID-19 patients with OD (OD group) and patients without OD (no-OD group). A second analysis compared patients with anosmia (high OD group) and patients with hyposmia or no OD (low or no-OD group). The OD group presented less cardiovascular and other respiratory diseases compared to the no-OD group (odds ratio [OR] = 0.536 [0.293-0.981], p = 0.041 and OR = 0.222 [0.056-0.874], p = 0.037 respectively). Moreover, history of malignancy was less present in the high OD group compared with the low or no-OD group (OR = 0.170 [0.064-0.455], p < 0.001). The main associated symptoms (OR > 5) with OD were loss of taste (OR = 24.059 [13.474-42.959], p = 0.000) and cacosmia (OR = 5.821 [2.246-15.085], p < 0.001). Most of all ORs decreased in the second analysis, especially for general, digestive, and ENT symptoms. Only two ORs increased: headache (OR = 2.697 [1.746-4.167], p < 0.001) and facial pain (OR = 2.901 [1.441-5.842], p = 0.002). The high OD group had a higher creatinine clearance CKD than the low or no-OD group (89.0 ± 21.1 vs. 81.0 ± 20.5, p = 0.040). No significant difference was found concerning the virological, radiological, and severity criteria. OD patients seem to have less comorbidity, especially better cardiovascular and renal function. Associated symptoms with OD were mostly neurological symptoms. We did not find a significant relationship between OD and less severity in COVID-19 possibly due to methodological bias.
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Affiliation(s)
- Julien Mercier
- Department of Infectious DiseaseNord Franche‐Comté HospitalTrévenansFrance
| | - Molka Osman
- Faculty of Medicine of TunisUniversity Tunis El ManarTunisTunisia
| | - Kevin Bouiller
- Department of Infectious DiseaseUniversity Hospital of BesançonBesançonFrance
| | - Can Tipirdamaz
- Department of Infectious DiseaseNord Franche‐Comté HospitalTrévenansFrance
| | - Vincent Gendrin
- Department of Infectious DiseaseNord Franche‐Comté HospitalTrévenansFrance
| | - Catherine Chirouze
- Department of Infectious DiseaseUniversity Hospital of BesançonBesançonFrance
| | - Quentin Lepiller
- Department of VirologyUniversity Hospital of BesançonBesançonFrance
| | - Elodie Bouvier
- Clinical Research Unit, Nord Franche‐Comté HospitalTrévenansFrance
| | - Pierre‐Yves Royer
- Department of Infectious DiseaseNord Franche‐Comté HospitalTrévenansFrance
| | - Alix Pierron
- Department of Infectious DiseaseNord Franche‐Comté HospitalTrévenansFrance
| | - Lynda Toko
- Department of Infectious DiseaseNord Franche‐Comté HospitalTrévenansFrance
| | - Julie Plantin
- Department of MicrobiologyNord Franche‐Comté HospitalTrévenansFrance
| | | | - Souheil Zayet
- Department of Infectious DiseaseNord Franche‐Comté HospitalTrévenansFrance
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Klopfenstein T, Tipirdamaz C, Gendrin V, Osman M, Mercier J, Bouvier E, Bouiller K, Lepiller Q, Toko L, Pierron A, Royer PY, Garnier P, Kadiane-Oussou NJ, Chirouze C, Zayet S. Third of patients have gustatory dysfunction 9 months after SARS-CoV-2 infection: the ANOSVID study. Int J Infect Dis 2022; 119:114-116. [PMID: 35364286 PMCID: PMC8964443 DOI: 10.1016/j.ijid.2022.03.053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Revised: 03/22/2022] [Accepted: 03/24/2022] [Indexed: 11/07/2022] Open
Affiliation(s)
| | - Can Tipirdamaz
- Infectious Disease Department, Nord Franche-Comté Hospital, France
| | - Vincent Gendrin
- Infectious Disease Department, Nord Franche-Comté Hospital, France
| | - Molka Osman
- Faculty of Medicine of Tunis, University Tunis El Manar, Tunis 1007, Tunisia
| | - Julien Mercier
- Infectious Disease Department, Nord Franche-Comté Hospital, France
| | - Elodie Bouvier
- Clinical Research Unit, Nord Franche-Comté Hospital, France
| | - Kevin Bouiller
- Infectious Disease Department, University Hospital of Besançon, France
| | | | - Lynda Toko
- Infectious Disease Department, Nord Franche-Comté Hospital, France
| | - Alix Pierron
- Infectious Disease Department, Nord Franche-Comté Hospital, France
| | | | - Pauline Garnier
- Microbiology Department, Nord Franche-Comté Hospital, France
| | | | | | - Souheil Zayet
- Infectious Disease Department, Nord Franche-Comté Hospital, France.
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Pierron A, Neves M, Puel S, Lippi Y, Soler L, Miller JD, Oswald IP. Intestinal toxicity of the new type A trichothecenes, NX and 3ANX. Chemosphere 2022; 288:132415. [PMID: 34600008 DOI: 10.1016/j.chemosphere.2021.132415] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Revised: 09/22/2021] [Accepted: 09/28/2021] [Indexed: 06/13/2023]
Abstract
NX and its acetylated form 3ANX are two new type A trichothecenes produced by Fusarium graminearum whose toxicity is poorly documented. The aim of this study was to obtain a general view of the intestinal toxicity of these toxins. Deoxynivalenol (DON), which differs from NX by the keto group at C8, served as a benchmark. The viability of human intestinal Caco-2 cells decreased after 24 h of exposure to 3 μM NX (-21.4%), 3 μM DON (-20.2%) or 10 μM 3ANX (-17.4%). Histological observations of porcine jejunal explants exposed for 4 h to 10 μM of the different toxins showed interstitial edema and cellular debris. Explants exposed to NX also displayed cell vacuolization, a broken epithelial barrier and high loss of villi. Whole transcriptome profiling revealed that NX, DON and 3ANX modulated 369, 146 and 55 genes, respectively. Functional analyses indicated that the three toxins regulate the same gene networks and signaling pathways mainly; cell proliferation, differentiation, apoptosis and growth, and particularly immune and pro-inflammatory responses. Greater transcriptional impacts were observed with NX than with DON. In conclusion, our data revealed that the three toxins have similar impacts on the intestine but of different magnitude: NX > DON ≫ 3ANX. NX and 3ANX should consequently be included in overall risk analysis linked to the presence of trichothecenes in our diet.
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Affiliation(s)
- Alix Pierron
- Toxalim (Research Center in Food Toxicology), Université de Toulouse, INRAE, ENVT, INP-Purpan, Toulouse, France
| | - Manon Neves
- Toxalim (Research Center in Food Toxicology), Université de Toulouse, INRAE, ENVT, INP-Purpan, Toulouse, France
| | - Sylvie Puel
- Toxalim (Research Center in Food Toxicology), Université de Toulouse, INRAE, ENVT, INP-Purpan, Toulouse, France
| | - Yannick Lippi
- Toxalim (Research Center in Food Toxicology), Université de Toulouse, INRAE, ENVT, INP-Purpan, Toulouse, France
| | - Laura Soler
- Toxalim (Research Center in Food Toxicology), Université de Toulouse, INRAE, ENVT, INP-Purpan, Toulouse, France
| | - J David Miller
- Department of Chemistry, Carleton University, 1125 Colonel By Drive, Ottawa, Ontario, K1S 5B6, Canada
| | - Isabelle P Oswald
- Toxalim (Research Center in Food Toxicology), Université de Toulouse, INRAE, ENVT, INP-Purpan, Toulouse, France.
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6
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Pierron A, Bozon F, Berceanu A, Fontan J, Brion A, Deconinck E, Chirouze C, Brunel AS. Vaccination coverage in hematological patients undergoing chemotherapy: Should we move towards personalized vaccination? Vaccine 2021; 39:7036-7043. [PMID: 34740475 DOI: 10.1016/j.vaccine.2021.10.040] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Revised: 10/15/2021] [Accepted: 10/18/2021] [Indexed: 12/23/2022]
Abstract
INTRODUCTION Immunocompromised patients are at high-risk for severe influenza and invasive pneumococcal diseases (IPD). Despite the French Public Health Council (FPHC) and the 7th European Conference on Infections in Leukaemia (ECIL7) recommendations, vaccination coverage remains insufficient. This study aimed to estimate the coverage and determinants of influenza, pneumococcal and diphtheria-tetanus-poliomyelitis (dTP) vaccinations in hematological patients underlying chemotherapy. METHODS A survey was distributed to all patients of the hematology day hospital assessing vaccine uptakes and general opinion about vaccination. Vaccine uptakes were collected from medical and vaccination records; knowledge of and attitudes towards vaccinations in immunocompromised patients were evaluated for each general practitioner (GP) by phone call. Adequacy between vaccine uptakes and indication or not to vaccinate according to ECIL7 guidelines was assessed. Factors associated with vaccine uptakes were assessed by multivariate logistic regression. RESULTS Among 145 patients, 66 % were aged 65 years or older, 40 % were followed for lymphoma and 38 % for multiple myeloma, 39 % were treated with anti-CD20 antibodies. Vaccination coverage was suboptimal for influenza (45-56 %), dTP (44 %) and IPD (16-19 %) regardless of the guidelines followed, with a wide variation in rates by information source (19-76 %). Adequacy rate with ECIL7 recommendations were 63 % and 87 % for influenza and IPD respectively. Information of patients on specific vaccinations was positively associated with flu and IPD vaccinations, as well as favorable attitude toward vaccination and age ≥ 65 years for flu vaccination, and recommendation by hematologist for pneumococcal vaccination. CONCLUSION Despite vaccination opportunities, the complexity of these specific recommendations and the lack of communication between the health actors could explain the suboptimal vaccination coverage in this high-risk population. A proactive attitude of all actors in the city and hospital, including better patient information and a personalized and evolving vaccination schedule to help GPs to coordinate vaccination would allow to improve vaccine coverage.
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Affiliation(s)
- Alix Pierron
- Infectious Diseases Unit, Besancon University Hospital, Besancon, France
| | - Fabienne Bozon
- Infectious Diseases Unit, Besancon University Hospital, Besancon, France
| | - Ana Berceanu
- Hematology Unit, Besancon University Hospital, Besancon, France
| | - Jean Fontan
- Hematology Unit, Besancon University Hospital, Besancon, France
| | - Annie Brion
- Hematology Unit, Besancon University Hospital, Besancon, France
| | - Erick Deconinck
- Hematology Unit, Besancon University Hospital, Besancon, France
| | - Catherine Chirouze
- Infectious Diseases Unit, Besancon University Hospital, Besancon, France
| | - Anne-Sophie Brunel
- Infectious Diseases Unit, Besancon University Hospital, Besancon, France.
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Zayet S, Klopfenstein T, Pierron A, Royer PY, Toko L, Garnier P, Gendrin V. Shigella sonnei, an emerging multidrug-resistant sexually transmitted pathogen in Franche-Comté, France. Emerg Microbes Infect 2021; 10:1702-1705. [PMID: 34392809 PMCID: PMC8381955 DOI: 10.1080/22221751.2021.1969289] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022]
Abstract
Shigella sonnei (S. sonnei) is sometimes sexually transmitted. Men, who have sex with men (MSM), may have sexual behaviours different from heterosexual population, and thus may be at risk for S. sonnei infection. We describe three cases of multidrug-resistant S. sonnei in MSM (one HIV-infected patient and two patients receiving pre-exposure prophylaxis against HIV). S. sonnei was isolated from stool specimens and all patients were successfully treated with parenteral third-generation cephalosporins following laboratory confirmation that the isolates were resistant to azithromycin. Two men (patients 2 and 3) were linked epidemiologically. These cases highlight the emergence of this pathogen and its association with some sexual behaviours among MSM in Franche-Comté, France.
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Affiliation(s)
- Souheil Zayet
- Department of Infectious Disease, Nord Franche-Comté Hospital, Trevenans, France
| | | | - Alix Pierron
- Department of Infectious Disease, Nord Franche-Comté Hospital, Trevenans, France
| | - Pierre-Yves Royer
- Department of Infectious Disease, Nord Franche-Comté Hospital, Trevenans, France
| | - Lynda Toko
- Department of Infectious Disease, Nord Franche-Comté Hospital, Trevenans, France
| | - Pauline Garnier
- Department of Microbiology, Nord Franche-Comté Hospital, Trevenans, France
| | - Vincent Gendrin
- Department of Infectious Disease, Nord Franche-Comté Hospital, Trevenans, France
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Payros D, Garofalo M, Pierron A, Soler-Vasco L, Al-Ayoubi C, Maruo VM, Alassane-Kpembi I, Pinton P, Oswald IP. Les mycotoxines en alimentation humaine : un défi pour la recherche. Cahiers de Nutrition et de Diététique 2021. [DOI: 10.1016/j.cnd.2021.02.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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Zayet S, Royer PY, Toko L, Pierron A, Gendrin V, Klopfenstein T. Recurrence of COVID-19 after recovery ? A case series in health care workers, France. Microbes Infect 2021; 23:104803. [PMID: 33667643 PMCID: PMC7923857 DOI: 10.1016/j.micinf.2021.104803] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Revised: 02/18/2021] [Accepted: 02/18/2021] [Indexed: 10/26/2022]
Abstract
We describe 3 cases of coronavirus disease 2019 in health care workers in France involving presumed clinical and microbiological recurrence after recovery. All patients were immunocompetent with clinical mild form. These cases highlight the possibility of coronavirus disease-recurrence.
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Affiliation(s)
- Souheil Zayet
- Infectious Disease Department, Nord Franche-Comté Hospital, France.
| | | | - Lynda Toko
- Infectious Disease Department, Nord Franche-Comté Hospital, France
| | - Alix Pierron
- Infectious Disease Department, Nord Franche-Comté Hospital, France
| | - Vincent Gendrin
- Infectious Disease Department, Nord Franche-Comté Hospital, France
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10
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Schmidt S, Sassu EL, Vatzia E, Pierron A, Lagler J, Mair KH, Stadler M, Knecht C, Spergser J, Dolezal M, Springer S, Theuß T, Fachinger V, Ladinig A, Saalmüller A, Gerner W. Vaccination and Infection of Swine With Salmonella Typhimurium Induces a Systemic and Local Multifunctional CD4 + T-Cell Response. Front Immunol 2021; 11:603089. [PMID: 33584671 PMCID: PMC7874209 DOI: 10.3389/fimmu.2020.603089] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2020] [Accepted: 11/25/2020] [Indexed: 01/14/2023] Open
Abstract
The gram-negative facultative intracellular bacteria Salmonella Typhimurium (STM) often leads to subclinical infections in pigs, but can also cause severe enterocolitis in this species. Due to its high zoonotic potential, the pathogen is likewise dangerous for humans. Vaccination with a live attenuated STM strain (Salmoporc) is regarded as an effective method to control STM infections in affected pig herds. However, information on the cellular immune response of swine against STM is still scarce. In this study, we investigated the T-cell immune response in pigs that were vaccinated twice with Salmoporc followed by a challenge infection with a virulent STM strain. Blood- and organ-derived lymphocytes (spleen, tonsils, jejunal and ileocolic lymph nodes, jejunum, ileum) were stimulated in vitro with heat-inactivated STM. Subsequently, CD4+ T cells present in these cell preparations were analyzed for the production of IFN-γ, TNF-α, and IL-17A by flow cytometry and Boolean gating. Highest frequencies of STM-specific cytokine-producing CD4+ T cells were found in lamina propria lymphocytes of jejunum and ileum. Significant differences of the relative abundance of cytokine-producing phenotypes between control group and vaccinated + infected animals were detected in most organs, but dominated in gut and lymph node-residing CD4+ T cells. IL-17A producing CD4+ T cells dominated in gut and gut-draining lymph nodes, whereas IFN-γ/TNF-α co-producing CD4+ T cells were present in all locations. Additionally, the majority of cytokine-producing CD4+ T cells had a CD8α+CD27- phenotype, indicative of a late effector or effector memory stage of differentiation. In summary, we show that Salmonella-specific multifunctional CD4+ T cells exist in vaccinated and infected pigs, dominate in the gut and most likely contribute to protective immunity against STM in the pig.
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Affiliation(s)
- Selma Schmidt
- Institute of Immunology, Department of Pathobiology, University of Veterinary Medicine, Vienna, Austria
| | - Elena L Sassu
- University Clinic for Swine, Department for Farm Animals and Veterinary Public Health, University of Veterinary Medicine, Vienna, Austria
| | - Eleni Vatzia
- Institute of Immunology, Department of Pathobiology, University of Veterinary Medicine, Vienna, Austria
| | - Alix Pierron
- Institute of Immunology, Department of Pathobiology, University of Veterinary Medicine, Vienna, Austria
| | - Julia Lagler
- Institute of Immunology, Department of Pathobiology, University of Veterinary Medicine, Vienna, Austria.,Clinic for Poultry and Fish Medicine, Department for Farm Animals and Veterinary Public Health, University of Veterinary Medicine, Vienna, Austria
| | - Kerstin H Mair
- Institute of Immunology, Department of Pathobiology, University of Veterinary Medicine, Vienna, Austria
| | - Maria Stadler
- Institute of Immunology, Department of Pathobiology, University of Veterinary Medicine, Vienna, Austria
| | - Christian Knecht
- University Clinic for Swine, Department for Farm Animals and Veterinary Public Health, University of Veterinary Medicine, Vienna, Austria
| | - Joachim Spergser
- Institute of Microbiology, Department of Pathobiology, University of Veterinary Medicine, Vienna, Austria
| | - Marlies Dolezal
- Platform for Bioinformatics and Biostatistics, Department of Biomedical Sciences, University of Veterinary Medicine, Vienna, Austria
| | | | - Tobias Theuß
- Ceva Innovation Center GmbH, Dessau-Roßlau, Germany
| | | | - Andrea Ladinig
- University Clinic for Swine, Department for Farm Animals and Veterinary Public Health, University of Veterinary Medicine, Vienna, Austria
| | - Armin Saalmüller
- Institute of Immunology, Department of Pathobiology, University of Veterinary Medicine, Vienna, Austria
| | - Wilhelm Gerner
- Institute of Immunology, Department of Pathobiology, University of Veterinary Medicine, Vienna, Austria
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11
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Pierron A, Zayet S, Toko L, Royer PY, Garnier P, Gendrin V. Catheter-related bacteremia with endocarditis caused by Kocuria rhizophila. Infect Dis Now 2020; 51:97-98. [PMID: 33010354 DOI: 10.1016/j.medmal.2020.09.007] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Revised: 03/27/2020] [Accepted: 09/21/2020] [Indexed: 11/19/2022]
Affiliation(s)
- A Pierron
- Department of Infectious diseases, Nord Franche-Comté Hospital, 100, route de Moval, Trevenans, France
| | - S Zayet
- Department of Infectious diseases, Nord Franche-Comté Hospital, 100, route de Moval, Trevenans, France.
| | - L Toko
- Department of Infectious diseases, Nord Franche-Comté Hospital, 100, route de Moval, Trevenans, France
| | - P Y Royer
- Department of Infectious diseases, Nord Franche-Comté Hospital, 100, route de Moval, Trevenans, France
| | - P Garnier
- Department of Microbiology, Nord Franche-Comté Hospital, 100, route de Moval, Trevenans, France
| | - V Gendrin
- Department of Infectious diseases, Nord Franche-Comté Hospital, 100, route de Moval, Trevenans, France
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12
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Vatzia E, Pierron A, Hoog AM, Saalmüller A, Mayer E, Gerner W. Deoxynivalenol Has the Capacity to Increase Transcription Factor Expression and Cytokine Production in Porcine T Cells. Front Immunol 2020; 11:2009. [PMID: 32903433 PMCID: PMC7438481 DOI: 10.3389/fimmu.2020.02009] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Accepted: 07/24/2020] [Indexed: 12/13/2022] Open
Abstract
Deoxynivalenol (DON) is a Fusarium mycotoxin that frequently contaminates the feed of farm animals. Pigs with their monogastric digestive system are in particular sensitive to DON-contaminated feed. At high concentrations, DON causes acute toxic effects, whereas lower concentrations lead to more subtle changes in the metabolism. This applies in particular to the immune system, for which immunosuppressive but also immunostimulatory phenomena have been described. Research in human and rodent cell lines indicates that this may be partially explained by a binding of DON to the ribosome and subsequent influences on cell signaling molecules like mitogen-activated protein kinases. However, a detailed understanding of the influence of DON on functional traits of porcine immune cells is still lacking. In this study, we investigated the influence of DON on transcription factor expression and cytokine production within CD4+, CD8+, and γδ T cells in vitro. At a DON concentration, that already negatively affects proliferation after Concanavalin A stimulation (0.8 μM) an increase of T-bet expression in CD4+ and CD8+ T cells was observed. This increase in T-bet expression coincided with elevated levels of IFN-γ and TNF-α producing T-cell populations. Increases in T-bet expression and cytokine production were found in proliferating and non-proliferating T cells, although increases were more prominent in proliferating cell subsets. Differently, IL-17A production by CD4+ T cells was not influenced by DON. In addition, frequencies of regulatory T cells and their expression of Foxp3 were not affected. In γδ T cells, GATA-3 expression was slightly reduced by DON, whereas T-bet levels were only slightly modulated and hence IFN-γ, TNF-α, or IL-17A production were not affected. Our results show for the single-cell level that DON has the capacity to modulate the expression of transcription factors and related cytokines. In particular, they suggest that for CD4+ and CD8+ T cells, DON can drive T-cell differentiation into a pro-inflammatory type-1 direction, probably depending on the already prevailing cytokine milieu. This could have beneficial or detrimental effects in ongoing immune responses to infection or vaccination.
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Affiliation(s)
- Eleni Vatzia
- Institute of Immunology, Department of Pathobiology, University of Veterinary Medicine Vienna, Vienna, Austria
| | - Alix Pierron
- Institute of Immunology, Department of Pathobiology, University of Veterinary Medicine Vienna, Vienna, Austria
| | - Anna Maria Hoog
- Institute of Immunology, Department of Pathobiology, University of Veterinary Medicine Vienna, Vienna, Austria
| | - Armin Saalmüller
- Institute of Immunology, Department of Pathobiology, University of Veterinary Medicine Vienna, Vienna, Austria
| | | | - Wilhelm Gerner
- Institute of Immunology, Department of Pathobiology, University of Veterinary Medicine Vienna, Vienna, Austria
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13
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Bracarense APFL, Pierron A, Pinton P, Gerez JR, Schatzmayr G, Moll WD, Zhou T, Oswald IP. Reduced toxicity of 3-epi-deoxynivalenol and de-epoxy-deoxynivalenol through deoxynivalenol bacterial biotransformation: In vivo analysis in piglets. Food Chem Toxicol 2020; 140:111241. [PMID: 32194137 DOI: 10.1016/j.fct.2020.111241] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2019] [Revised: 02/25/2020] [Accepted: 03/02/2020] [Indexed: 12/17/2022]
Abstract
Ingestion of deoxynivalenol (DON), one of the most common mycotoxin contaminants of cereals, leads to adverse effects for animal and human health. Bacterial biotransformation is a strategy to mitigate the toxicity of this mycotoxin. The present study aims to evaluate the toxicity of two bacterial biotranformation products of DON: 3-epi-deoxynivalenol (3-epi-DON) and de-epoxy-deoxynivalenol (DOM-1) through zootechnical, hematological, histological and immunological assays. Twenty-four 4-weeks-old piglets received a control diet or a diet contaminated with 3 mg kg-1 DON, DOM-1, or 3-epi-DON for 7 days. Sample tissues were collected for histomorphometrical analysis, expression of cytokines and cell protein junctions. The zootechnical and hematological parameters were not modulated by any treatment. Ingestion of DON induced histological alterations in the intestine, liver and lymphoid organs, as well as an overexpression of pro-inflammatory cytokines, E-cadherin and occludin. These changes were not observed in piglets receiving the DOM-1 and 3-epi-DON contaminated diets. Pigs fed 3-epi-DON contaminated diet showed an increase in IgM levels in comparison with other diets, while no change was observed in IgA and IgG levels among the diets. Our results indicate that DOM-1 and 3-epi-DON are not toxic for piglets; thus bacterial biotransformation seems to be a sustainable alternative to reduce mycotoxin toxicity.
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Affiliation(s)
- Ana Paula F L Bracarense
- Laboratory of Animal Pathology, Universidade Estadual de Londrina, Rodovia Celso Garcia Cid, Km 380, 86057-970, Londrina, PR, Brazil.
| | - Alix Pierron
- Toxalim, Research Center in Food Toxicology, Université de Toulouse, INRAe, ENVT, INP-Purpan, UPS, Toulouse, France
| | - Philippe Pinton
- Toxalim, Research Center in Food Toxicology, Université de Toulouse, INRAe, ENVT, INP-Purpan, UPS, Toulouse, France
| | - Juliana R Gerez
- Laboratory of Animal Pathology, Universidade Estadual de Londrina, Rodovia Celso Garcia Cid, Km 380, 86057-970, Londrina, PR, Brazil
| | | | | | - Ting Zhou
- Guelph Food Research Center Agriculture &Agri-Food Canada, Guelph, Ontario, N1G 5C, Canada
| | - Isabelle P Oswald
- Toxalim, Research Center in Food Toxicology, Université de Toulouse, INRAe, ENVT, INP-Purpan, UPS, Toulouse, France
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14
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Lagler J, Mitra T, Schmidt S, Pierron A, Vatzia E, Stadler M, Hammer SE, Mair KH, Grafl B, Wernsdorf P, Rauw F, Lambrecht B, Liebhart D, Gerner W. Cytokine production and phenotype of Histomonas meleagridis-specific T cells in the chicken. Vet Res 2019; 50:107. [PMID: 31806018 PMCID: PMC6896354 DOI: 10.1186/s13567-019-0726-z] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2019] [Accepted: 11/15/2019] [Indexed: 11/10/2022] Open
Abstract
The protozoan parasite Histomonas meleagridis is the causative agent of the re-emerging disease histomonosis of chickens and turkeys. Due to the parasite’s extracellular occurrence, a type-2 differentiation of H. meleagridis-specific T cells has been hypothesized. In contrast, a recent study suggested that IFN-γ mRNA+ cells are involved in protection against histomonosis. However, the phenotype and cytokine production profile of H. meleagridis-specific T cells still awaits elucidation. In this work, clonal cultures of a virulent monoxenic strain of H. meleagridis were used for infecting chickens to detect IFN-γ protein and IL-13 mRNA by intracellular cytokine staining and PrimeFlow™ RNA Assays, respectively, in CD4+ and CD8β+ T cells. Infection was confirmed by characteristic pathological changes in the cecum corresponding with H. meleagridis detection by immunohistochemistry and H. meleagridis-specific antibodies in serum. In splenocytes stimulated either with H. meleagridis antigen or PMA/ionomycin, IFN-γ-producing CD4+ T cells from infected chickens increased in comparison to cells from non-infected birds 2 weeks and 5 weeks post-infection. Additionally, an increase of IFN-γ-producing CD4−CD8β− cells upon H. meleagridis antigen and PMA/ionomycin stimulation was detected. Contrariwise, frequencies of IL-13 mRNA-expressing cells were low even after PMA/ionomycin stimulation and mainly had a CD4−CD8β− phenotype. No clear increase of IL-13+ cells related to H. meleagridis infection could be found. In summary, these data suggest that H. meleagridis infection induces a type-1 differentiation of CD4+ T cells but also of non-CD4+ cells. This phenotype could include γδ T cells, which will be addressed in future studies.
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Affiliation(s)
- Julia Lagler
- Department of Pathobiology, Institute of Immunology, University of Veterinary Medicine Vienna, Vienna, Austria.,Department for Farm Animals and Veterinary Public Health, Clinic for Poultry and Fish Medicine, University of Veterinary Medicine Vienna, Vienna, Austria
| | - Taniya Mitra
- Department for Farm Animals and Veterinary Public Health, Clinic for Poultry and Fish Medicine, University of Veterinary Medicine Vienna, Vienna, Austria
| | - Selma Schmidt
- Department of Pathobiology, Institute of Immunology, University of Veterinary Medicine Vienna, Vienna, Austria
| | - Alix Pierron
- Department of Pathobiology, Institute of Immunology, University of Veterinary Medicine Vienna, Vienna, Austria
| | - Eleni Vatzia
- Department of Pathobiology, Institute of Immunology, University of Veterinary Medicine Vienna, Vienna, Austria
| | - Maria Stadler
- Department of Pathobiology, Institute of Immunology, University of Veterinary Medicine Vienna, Vienna, Austria
| | - Sabine E Hammer
- Department of Pathobiology, Institute of Immunology, University of Veterinary Medicine Vienna, Vienna, Austria
| | - Kerstin H Mair
- Department of Pathobiology, Institute of Immunology, University of Veterinary Medicine Vienna, Vienna, Austria
| | - Beatrice Grafl
- Department for Farm Animals and Veterinary Public Health, Clinic for Poultry and Fish Medicine, University of Veterinary Medicine Vienna, Vienna, Austria
| | - Patricia Wernsdorf
- Department for Farm Animals and Veterinary Public Health, Clinic for Poultry and Fish Medicine, University of Veterinary Medicine Vienna, Vienna, Austria
| | - Fabienne Rauw
- Avian Virology & Immunology Unit, Sciensano, Brussels, Belgium
| | | | - Dieter Liebhart
- Department for Farm Animals and Veterinary Public Health, Clinic for Poultry and Fish Medicine, University of Veterinary Medicine Vienna, Vienna, Austria
| | - Wilhelm Gerner
- Department of Pathobiology, Institute of Immunology, University of Veterinary Medicine Vienna, Vienna, Austria.
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15
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Pierron A, Bracarense APFL, Cossalter AM, Laffitte J, Schwartz-Zimmermann HE, Schatzmayr G, Pinton P, Moll WD, Oswald IP. Deepoxy-deoxynivalenol retains some immune-modulatory properties of the parent molecule deoxynivalenol in piglets. Arch Toxicol 2018; 92:3381-3389. [DOI: 10.1007/s00204-018-2293-x] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2018] [Accepted: 08/20/2018] [Indexed: 12/23/2022]
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16
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Gouverneur J, Pierron A, Ruche V. Fistule colovésicale et diverticulose sigmoïdienne colique. Ann Fr Med Urgence 2018. [DOI: 10.3166/afmu-2018-0030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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17
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Novak B, Vatzia E, Springler A, Pierron A, Gerner W, Reisinger N, Hessenberger S, Schatzmayr G, Mayer E. Bovine Peripheral Blood Mononuclear Cells Are More Sensitive to Deoxynivalenol Than Those Derived from Poultry and Swine. Toxins (Basel) 2018; 10:toxins10040152. [PMID: 29641442 PMCID: PMC5923318 DOI: 10.3390/toxins10040152] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2018] [Revised: 03/26/2018] [Accepted: 04/07/2018] [Indexed: 01/04/2023] Open
Abstract
Deoxynivalenol (DON) is one of the most prevalent mycotoxins, contaminating cereals and cereal-derived products. Its derivative deepoxy-deoxynivalenol (DOM-1) is produced by certain bacteria, which either occur naturally or are supplemented in feed additive. DON-induced impairments in protein synthesis are particularly problematic for highly proliferating immune cells. This study provides the first comparison of the effects of DON and DOM-1 on the concanavalin A-induced proliferation of porcine, chicken, and bovine peripheral blood mononuclear cells (PBMCs). Therefore, isolated PBMCs were treated with DON (0.01–3.37 µM) and DOM-1 (1.39–357 µM) separately, and proliferation was measured using a bromodeoxyuridine (BrdU) assay. Although pigs are considered highly sensitive to DON, the present study revealed a substantially higher sensitivity of bovine (IC50 = 0.314 µM) PBMCs compared to chicken (IC50 = 0.691 µM) and porcine (IC50 = 0.693 µM) PBMCs. Analyses on the proliferation of bovine T-cell subsets showed that all major subsets, namely, CD4+, CD8β+, and γδ T cells, were affected to a similar extent. In contrast, DOM-1 did not affect bovine PBMCs, but reduced the proliferation of chicken and porcine PBMCs at the highest tested concentration (357 µM). Results confirm the necessity of feed additives containing DON-to-DOM-1-transforming bacteria and highlights species-specific differences in the DON sensitivity of immune cells.
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Affiliation(s)
- Barbara Novak
- BIOMIN Research Center, Technopark 1, 3430 Tulln, Austria.
| | - Eleni Vatzia
- Institute of Immunology, Department of Pathobiology, University of Veterinary Medicine Vienna, 1210 Vienna, Austria.
| | | | - Alix Pierron
- Institute of Immunology, Department of Pathobiology, University of Veterinary Medicine Vienna, 1210 Vienna, Austria.
| | - Wilhelm Gerner
- Institute of Immunology, Department of Pathobiology, University of Veterinary Medicine Vienna, 1210 Vienna, Austria.
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18
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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] [What about the content of this article? (0)] [Affiliation(s)] [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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19
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Pierron A, Alassane-Kpembi I, Oswald IP. Impact of two mycotoxins deoxynivalenol and fumonisin on pig intestinal health. Porcine Health Manag 2016; 2:21. [PMID: 28405447 PMCID: PMC5382503 DOI: 10.1186/s40813-016-0041-2] [Citation(s) in RCA: 76] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2016] [Accepted: 07/25/2016] [Indexed: 11/16/2022] Open
Abstract
Mycotoxins are secondary metabolites of fungi that grow on a variety of substrates. Due to their high consumption of cereals and their sensitivity, pigs are highly impacted by the presence of mycotoxins. At the European level, regulations and recommendations exist for several mycotoxins in pig feed. Among these toxins, fumonisin B1 (FB1), and deoxynivalenol (DON) have a great impact on the intestine and the immune system. Indeed, the intestine is the first barrier to food contaminants and can be exposed to high concentrations of mycotoxins upon ingestion of contaminated feed. FB1 and DON alter the intestinal barrier, impair the immune response, reduce feed intake and weight gain. Their presence in feed increases the translocation of bacteria; mycotoxins can also impair the immune response and enhance the susceptibility to infectious diseases. In conclusion, because of their effect on the intestine, FB1 and DON are a major threat to pig health, welfare and performance.
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Affiliation(s)
- Alix Pierron
- ToxAlim Research Centre in Food Toxicology, INRA, UMR 1331, ENVT, INP Purpan, 180 chemin de Tournefeuille, BP93173, 31027 Toulouse, Cedex 03 France.,BIOMIN Research Center, Technopark 1, 3430 Tulln, Austria
| | - Imourana Alassane-Kpembi
- ToxAlim Research Centre in Food Toxicology, INRA, UMR 1331, ENVT, INP Purpan, 180 chemin de Tournefeuille, BP93173, 31027 Toulouse, Cedex 03 France
| | - Isabelle P Oswald
- ToxAlim Research Centre in Food Toxicology, INRA, UMR 1331, ENVT, INP Purpan, 180 chemin de Tournefeuille, BP93173, 31027 Toulouse, Cedex 03 France
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20
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De Donatis GM, Le Pape E, Pierron A, Cheli Y, Hofman V, Hofman P, Allegra M, Zahaf K, Bahadoran P, Rocchi S, Bertolotto C, Ballotti R, Passeron T. NF-kB2 induces senescence bypass in melanoma via a direct transcriptional activation of EZH2. Oncogene 2016; 35:2813. [PMID: 27225420 DOI: 10.1038/onc.2015.468] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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21
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Pierron A, Alassane-Kpembi I, Oswald IP. Impact of mycotoxin on immune response and consequences for pig health. ACTA ACUST UNITED AC 2016; 2:63-68. [PMID: 29767037 PMCID: PMC5941016 DOI: 10.1016/j.aninu.2016.03.001] [Citation(s) in RCA: 104] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2016] [Accepted: 03/10/2016] [Indexed: 01/18/2023]
Abstract
Mycotoxins are fungal secondary metabolites detected in many agricultural commodities, especially cereals. Due to their high consumption of cereals, pigs are exposed to these toxins. In the European Union, regulations and/or recommendations exist in pig feed for aflatoxins, ochratoxin A, fumonisins, zearalenone, and trichothecenes, deoxynivalenol and T-2 toxin. These mycotoxins have different toxic effects, but they all target the immune system. They have immunostimulatory or immunosuppressive effects depending on the toxin, the concentration and the parameter investigated. The immune system is primarily responsible for defense against invading organisms. The consequences of the ingestion of mycotoxin-contaminated feed are an increased susceptibility to infectious diseases, a reactivation of chronic infection and a decreased vaccine efficacy. In this review we summarized the data available on the effect of mycotoxins on the immune system and the consequences for pig health.
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Affiliation(s)
- Alix Pierron
- INRA, UMR 1331, ToxAlim Research Centre in Food Toxicology, BP93173, Toulouse Cedex 03 31027, France.,Université de Toulouse, INP, UMR 1331, ToxAlim, BP93173, Toulouse Cedex 03 31027, France.,BIOMIN Research Center, Technopark 1, Tulln 3430, Austria
| | - Imourana Alassane-Kpembi
- INRA, UMR 1331, ToxAlim Research Centre in Food Toxicology, BP93173, Toulouse Cedex 03 31027, France.,Université de Toulouse, INP, UMR 1331, ToxAlim, BP93173, Toulouse Cedex 03 31027, France
| | - Isabelle P Oswald
- INRA, UMR 1331, ToxAlim Research Centre in Food Toxicology, BP93173, Toulouse Cedex 03 31027, France.,Université de Toulouse, INP, UMR 1331, ToxAlim, BP93173, Toulouse Cedex 03 31027, France
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22
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Pierron A, Revert M, Goueslard K, Vuagnat A, Cottenet J, Benzenine E, Fresson J, Quantin C. [Evaluation of the metrological quality of the medico-administrative data for perinatal indicators: A pilot study in 3 university hospitals]. Rev Epidemiol Sante Publique 2015; 63:237-46. [PMID: 26143088 DOI: 10.1016/j.respe.2015.05.001] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2014] [Revised: 03/10/2015] [Accepted: 05/11/2015] [Indexed: 11/30/2022] Open
Abstract
BACKGROUND In order to assess public health policies for the perinatal period, routinely produced indicators are needed for the whole population. In France, these indicators are used to compare the national public health policy with those of other European countries. French administrative and medical data (PMSI) are straightforward and reliable and may be a valuable source of information for research. This study aimed to measure the quality of PMSI data from three university health centers for core indicators in perinatal health. METHOD PMSI data were compared with medical files in 2012 from 300 live births after 22 weeks of amenorrhea, drawn at random from University Hospitals in Dijon, Paris and Nancy. The variables were chosen based on the Europeristat Project's core and recommended indicators, as well as those of the French National Perinatal survey conducted in 2010. The information gathered blindly from the medical files was compared with the PMSI data positive predictive value (PPV) and the sensitivity was used to assess data quality. RESULTS Data on maternal age, parity and mode of delivery as well as the rates of premature births were superimposable for the two sources. The PPV for epidural injection was 96.2% and 94.3% for perineal tears. Overall, maternal morbidity was underdocumented in the PMSI, so the PPV was 100.0% for pre-existing diabetes, 88.9% for gestational diabetes and 100.0% for high blood pressure with a rate of 9.0% in PMSI and 6.3% in the medical files. The PPV for bleeding during labor was 89.5%. CONCLUSION To conclude, PMSI data are apparently becoming more and more reliable for two reasons: on one hand, the importance of these data for budgetary promotion in hospitals; on the other, the increasing use of this information for statistical and epidemiological purposes.
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Affiliation(s)
- A Pierron
- Service de biostatistique et d'informatique médicale (DIM), CHRU de Dijon, 21000 Dijon, France
| | - M Revert
- École de sages-femmes Saint-Antoine, hôpital Saint-Antoine, AP-HP, 184, rue du Faubourg-Saint-Antoine, 75012 Paris, France; Unité de recherche EA7285, risques cliniques et sécurité en santé des femmes et en santé périnatale, université Versailles St-Quentin, 2, avenue de la Source-de-la-Bièvre, 78180 Montigny-le-Bretonneux, France
| | - K Goueslard
- École de sages-femmes, service de biostatistique et d'informatique médicale (DIM), CHRU de Dijon, 21000 Dijon, France
| | - A Vuagnat
- Ministère des Affaires sociales et de la Santé, direction de la recherche, des études, de l'évaluation et des statistiques, 14, avenue Duquesne, 75350 Paris, France
| | - J Cottenet
- Service de biostatistique et d'informatique médicale (DIM), CHRU de Dijon, 21000 Dijon, France
| | - E Benzenine
- Service de biostatistique et d'informatique médicale (DIM), CHRU de Dijon, 21000 Dijon, France
| | - J Fresson
- Département d'information médicale, maternité régionale, CHU de Nancy, 54000 Nancy, France
| | - C Quantin
- Service de biostatistique et d'informatique médicale (DIM), CHRU de Dijon, 21000 Dijon, France; Inserm, U866, université de Bourgogne, 21000 Dijon, France.
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Pierron A, Revert M, Goueslard K, Vuagnat A, Cottenet J, Benzenine E, Fresson J, Quantin C. Évaluation de la qualité métrologique des données du Programme de médicalisation du système d’information (PMSI) en périnatalité. Étude pilote réalisée dans les CHU de Dijon, Port-Royal et Nancy. Rev Epidemiol Sante Publique 2015. [DOI: 10.1016/j.respe.2015.01.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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Breton O, Vial F, Feugeas J, Podrez K, Hosseini K, Boileau S, Guerci P, Bouaziz H, Aubert F, Audibert G, Borgo J, Chalot Y, Didelot F, Fuchs-Buder T, Hotton J, Junke E, Lalot JM, Losser MR, Pierron A. [Risks acceptability related to obstetrical epidural analgesia]. ACTA ACUST UNITED AC 2014; 33:581-6. [PMID: 25441550 DOI: 10.1016/j.annfar.2014.06.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2013] [Accepted: 06/06/2014] [Indexed: 11/29/2022]
Abstract
OBJECTIVES Evaluation of the acceptability of complications related to obstetrical epidural analgesia in two populations, parturients and anesthesiologists. STUDY DESIGN Prospective, transversal, single center study. MATERIALS AND METHODS Evaluation of the acceptability of complications associated with obstetric epidural analgesia performed using a questionnaire of six clinical scenarii in two populations: parturients cared at the University maternity of Nancy and anesthesiologists of Lorraine. Patients were interviewed by an anesthesiologist, physicians via Internet. Acceptability was assessed using two tools, the absolute acceptability with a visual analog scale and the relative acceptability obtained by classifying clinical scenario against each other, in ascending order of acceptability. RESULTS One hundred and forty-six parturients and 87 anesthetists assessed the acceptability of the different scenarios. The three less serious scenarios (hypotension, failure, dural tap) were acceptable for both populations. One case (spinal hematoma) was unacceptable for parturients. Three cases of varying severity (failure, dural tap, plexus injury with sequelae) were judged significantly less acceptable by patients than physicians (5.9 vs. 7.9 [P<0.001], 5.75 vs. 8.1 [P<0.01], 4.1 vs. 5.1 [P=0.035]). Multivariate analysis did not show any predictive factor of acceptability in both populations. CONCLUSION In this study, the overall acceptability of the inherent complications of epidural analgesia was good in the two populations. It was essentially based on the notion of severity and preventability. A large interindividual variability was observed and a better acceptance by the anesthesiologists.
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Affiliation(s)
- O Breton
- Service d'anesthésie-réanimation, maternité régionale de Nancy, 10, rue du Docteur-Heydenreich, 54000 Nancy, France
| | - F Vial
- Service d'anesthésie-réanimation, maternité régionale de Nancy, 10, rue du Docteur-Heydenreich, 54000 Nancy, France.
| | - J Feugeas
- Service d'anesthésie-réanimation, maternité régionale de Nancy, 10, rue du Docteur-Heydenreich, 54000 Nancy, France
| | - K Podrez
- Service d'anesthésie-réanimation, maternité régionale de Nancy, 10, rue du Docteur-Heydenreich, 54000 Nancy, France
| | - K Hosseini
- Service d'épidémiologie et évaluation cliniques, CHU de Nancy, hôpitaux de Brabois, avenue du Morvan, 54500 Vandœuvre, France
| | - S Boileau
- Service d'anesthésie-réanimation, maternité régionale de Nancy, 10, rue du Docteur-Heydenreich, 54000 Nancy, France
| | - P Guerci
- Département d'anesthésie-réanimation, CHU de Nancy, hôpitaux de Brabois, avenue du Morvan, 54500 Vandœuvre, France
| | - H Bouaziz
- Service d'anesthésie-réanimation, maternité régionale de Nancy, 10, rue du Docteur-Heydenreich, 54000 Nancy, France
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Bemer M, Poussel JF, Draux S, Pierron A, Rionde J. [Traumatic myocardial infarct. A case study]. Cah Anesthesiol 1986; 34:441-3. [PMID: 3779490] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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Couzigou P, Vincendeau P, Fleury B, Richard-Molard B, Pierron A, Bergeron JL, Bezian JH, Amouretti M, Béraud C. [Changes in circulating lymphocyte subsets in alcoholic hepatopathies. Respective role of alcohol, hepatocellular insufficiency and malnutrition]. Gastroenterol Clin Biol 1984; 8:915-9. [PMID: 6519399] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Peripheral lymphocyte subpopulations have been quantified by a direct and indirect, immunofluorescence technique, using monoclonal antibodies, in 22 patients with continued heavy drinking, hepatocellular dysfunction (spider angiomata, ascites, and factor V decrease) (group I), in 16 patients with a history of heavy drinking and abstinence maintained for at least 6 months and hepatocellular dysfunction (group II) and in 28 patients admitted for continued heavy drinking, without hepatocellular dysfunction (group III). Sixteen normal subjects were studied as controls. The total number of lymphocytes and T lymphocytes (OKT3+) were significantly reduced (p less than 0.001) in groups I and II. A significant decrease of B lymphocytes was observed in group II (p less than 0.02). The OKT8+ lymphocytes were significantly reduced in group I (p less than 0.01) and in group II (p less than 0.001); the decrease of the OKT4+ lymphocytes was significant in group II (p less than 0.01) only. The OKT4/OKT8 ratio was higher in group I (p less than 0.05) and group II (p less than 0.01) than in the control group. Normal values of total lymphocytes, B lymphocytes, T lymphocytes subsets and OKT4/OKT8 ratio were observed in group III. In group III, the lymphocyte subpopulations and OKT4/OKT8 ratio were similar in patients with or without abnormalities of liver function tests. In group I and II, no correlation was found between the lymphocyte subpopulations or the OKT4/OKT8 ratio and factor V or nutritional status assessed by anthropometrical and biological tests. T-cell imbalance in alcoholic liver disease does not seem to be related to alcohol consumption, factor V decrease or malnutrition.
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