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Istituto di scienza dell'alimentazione

Torna all'elenco Contributi in rivista anno 2006

Contributo in rivista

Tipo: Articolo in rivista

Titolo: Interactive effects of fumonisin B1 and a-zearalenol on proliferation and cytokine expression in Jurkat T cells.

Anno di pubblicazione: 2006

Formato: Elettronico Cartaceo

Autori: Luongo D; Severino L; Bergamo P; De Luna R; Lucisano A; Rossi M.

Affiliazioni autori: Department of Pathology and Animal Health -Division of Toxicology- University of Naples "Federico II", via Delpino 1, 80137 Naples, Italy. Istituto di Scienze dell'Alimentazione, CNR

Autori CNR:

  • PAOLO BERGAMO
  • DIOMIRA LUONGO
  • MAURO ROSSI

Lingua: inglese

Abstract: Mycotoxins are secondary metabolites of fungi that grow on various food and feed. These compounds elicit a wide spectrum of toxicological effects, including the capacity to alter normal immune function. Feed commodities are usually contaminated with more than one mycotoxin; however, extensive information on the interaction between concomitantly occurring mycotoxins and the consequence for their toxicity is lacking. In the present study, we examined the effects in vitro of fumonisin B1 (FB1) and alpha-zearalenol (alpha-ZEA), alone or in combination, on the immune function in the human lymphoblastoid Jurkat T cell line. Treatment of cells with increasing concentrations of FB1 resulted in a dose-dependent induction of proliferation. In contrast, alpha-ZEA showed a marked inhibitory effect on cell proliferation, even at very low doses, essentially mediated by apoptosis. In stimulated cells pre-incubated with FB1, the levels of IL-2 and IFN gamma mRNAs were similar to control whereas a reduction of cytokine transcripts was reported following alpha-ZEA treatment. Interestingly, co-administration of mycotoxins resulted in further inhibition of both proliferation and IFN gamma mRNA expression when compared with alpha-ZEA alone. In conclusion, FB1 and alpha-ZEA showed different immunomodulation abilities when individually administered. Combination of mycotoxins resulted instead in interactive effects.

Lingua abstract: inglese

Pagine da: 1403

Pagine a: 1410

Rivista:

Toxicology in vitro Pergamon.
Paese di pubblicazione: Regno Unito
Lingua: inglese
ISSN: 0887-2333

Numero volume: 20

Numero fascicolo: 8

DOI: 10.1016/j.tiv.2006.06.006

Indicizzato da: ISI Web of Science (WOS) [000242136100016]

Strutture CNR:

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