Alpha-Tocopherol Counteracts the Cytotoxicity Induced by Ochratoxin A in Primary Porcine Fibroblasts

Autor: Eleonora Fusi, Raffaella Rebucci, Chiara Pecorini, Anna Campagnoli, Luciano Pinotti, Francesca Saccone, Federica Cheli, Stig Purup, Kristen Sejrsen, Antonella Baldi
Jazyk: angličtina
Rok vydání: 2010
Předmět:
Zdroj: Toxins, Vol 2, Iss 6, Pp 1265-1278 (2010)
Druh dokumentu: article
ISSN: 2072-6651
DOI: 10.3390/toxins2061265
Popis: The aims of the current study were to determine the half-lethal concentration of ochratoxin A (OTA) as well as the levels of lactate dehydrogenase release and DNA fragmentation induced by OTA in primary porcine fibroblasts, and to examine the role of α-tocopherol in counteracting its toxicity. Cells showed a dose-, time- and origin-dependent (ear vs. embryo) sensitivity to ochratoxin A. Pre-incubation for 3 h with 1 nM α-tocopherol significantly (P < 0.01) reduced OTA cytotoxicity, lactate dehydrogenase release and DNA damage in both fibroblast cultures. These findings indicate that α-tocopherol supplementation may counteract short-term OTA toxicity, supporting its defensive role in the cell membrane.
Databáze: Directory of Open Access Journals