Publications Scientifiques

[ Article ] The emerging mycotoxin, enniatin B1, down-modulates the gastrointestinal toxicity of T-2 toxin in vitro on intestinal epithelial cells and ex vivo on intestinal explants

Date de soumission: 27-06-2017
Année de Publication: 2013
Entité/Laboratoire Autres laboratoires
Document type : Article
Discipline(s) : Pharmacie, Pharmacologie & Toxicologie
Titre The emerging mycotoxin, enniatin B1, down-modulates the gastrointestinal toxicity of T-2 toxin in vitro on intestinal epithelial cells and ex vivo on intestinal explants
Auteurs ALASSANE-KPEMBI IMOURANA [5],
Journal: Archives of Toxicology
Catégorie Journal: Internationale
Impact factor: 0
Volume Journal: 87
DOI: 10.1007/s00204-013-1067-8.
Resume Enniatins, the most prevalent emerging mycotoxins, represent an emerging food safety issue, because of their common co-occurrence with other fusariotoxins such as trichothecenes co-produced by Fusarium spp on field grains and because of their extensive prevalence in grains. In this study, the intestinal toxicity of enniatin B1 (ENN) alone and mixed with the most toxic trichothecene T-2 toxin (T2) was characterized by using two biological models from pig, the most sensitive species: the intestinal cell line IPEC1 (in vitro exposure) and jejunal explants (ex vivo exposure). Dose-dependent decreases in cell proliferation in IPEC1 and in the histopathological scores of explants were observed for ENN at μM-levels and for T2 at nM-levels, with IC50 values for ENN of 15.8 and 29.7 μM, and for T2 of 9.3 and 15.1 nM in vitro and ex vivo, respectively. Interaction analysis by probabilistic and by determinist approaches showed a less than additive effect both in vitro and ex vivo, at IC50 values, with increasing antagonism with decreasing concentrations of toxins. The results obtained by the determinist median-effect dose analysis and by the nonlinear regression analysis were concordant. All the median-effect doses estimated for IPEC cells were included in the IC50 confidence intervals of the nonlinear regression fitting. Given the occurrence of enniatins, potential synergy following the co-occurrence of enniatins and the major fusariotoxins, especially trichothecene B deoxynivalenol should be investigated.Enniatins, the most prevalent emerging mycotoxins, represent an emerging food safety issue, because of their common co-occurrence with other fusariotoxins such as trichothecenes co-produced by Fusarium spp on field grains and because of their extensive prevalence in grains. In this study, the intestinal toxicity of enniatin B1 (ENN) alone and mixed with the most toxic trichothecene T-2 toxin (T2) was characterized by using two biological models from pig, the most sensitive species: the intestinal cell line IPEC1 (in vitro exposure) and jejunal explants (ex vivo exposure). Dose-dependent decreases in cell proliferation in IPEC1 and in the histopathological scores of explants were observed for ENN at μM-levels and for T2 at nM-levels, with IC50 values for ENN of 15.8 and 29.7 μM, and for T2 of 9.3 and 15.1 nM in vitro and ex vivo, respectively. Interaction analysis by probabilistic and by determinist approaches showed a less than additive effect both in vitro and ex vivo, at IC50 values, with increasing antagonism with decreasing concentrations of toxins. The results obtained by the determinist median-effect dose analysis and by the nonlinear regression analysis were concordant. All the median-effect doses estimated for IPEC cells were included in the IC50 confidence intervals of the nonlinear regression fitting. Given the occurrence of enniatins, potential synergy following the co-occurrence of enniatins and the major fusariotoxins, especially trichothecene B deoxynivalenol should be investigated.
Mots clés Emerging mycotoxins Enniatins Gastrointestinal toxicity Jejunal explants Interactions Combination index
Pages 2233 - 2241
Fichier (PDF)

Publications par entité

  • Centre de Formation et de Recherche en matière de Population (CEFORP) (15)
  • Centre Interfacultaire de Formation et de Recherche en Environnement pour le Développement Durable (CIFRED) (18)
  • Chaire Internationale en Physique Mathématique et Applications (CIPMA-Chaire UNESCO) (16)
  • Ecole Doctorale Pluridisciplinaire <<Espaces, Culture et Développement>> (0)
  • Ecole Nationale d'Administration et de Magistrature (ENAM) (47)
  • Ecole Nationle d'Economie Appliquée et de Management (80)
  • Ecole Normale Supérieure (24)
  • Ecole Polytechnique d'Abomey-Calavi (EPAC) (877)
  • Faculté de droit et de Science Politique (FADESP) (57)
  • Faculté des Lettres et Sciences Humaines (FLASH) (889)
  • Faculté des Lettres, Langues, Arts et Communications (FLLAC) (0)
  • Faculté des Sciences Agronomiques (1433)
  • Faculté des Sciences de la Santé (FSS) (1757)
  • Faculté des Sciences Economiques et de Gestion (FASEG) (144)
  • Faculté des Sciences et Techniques (FAST) (789)
  • Faculté des Sciences Humaines et Sociales (FASHS) (19)
  • Institut de Formation et de Recherche en Informatique (IFRI) (72)
  • Institut de Mathématiques et de Sciences Physiques (IMSP) (75)
  • Institut National de l'Eau (INE) (13)
  • INSTITUT NATIONAL DE LA JEUNESSE DE L’EDUCATION PHYSIQUE ET SPORT(INJEPS) (192)
  • Institut National des Métiers d'Art d'Archéologie et de la Culture (INMAAC) (4)
  • Institut National Médico Sanitaire ( INMeS) (0)
  • Institut Régional de Santé Publique (IRSP) (51)

Publications par sexe

  • Femme( 993 )
  • Homme (