Zearalenone (ZEN) disrupts the anti-inflammatory response of bovine oviductal epithelial cells to sperm in vitro

Mohamed S Yousef, Mitsuhiro Takagi, Anup K Talukder, Mohamed A Marey, Rasoul Kowsar, Abdel-Razek Kh Abdel-Razek, Takashi Shimizu, Johanna Fink-Gremmels, Akio Miyamoto*

*Corresponding author for this work

    Research output: Contribution to journalArticleAcademicpeer-review

    Abstract

    Dietary contamination by Zearalenone (ZEN) has a detrimental effect on bovine fertility. Recently, we showed a novel anti-inflammatory response of bovine oviductal epithelial cells (BOEC) to active sperm cells in vitro. The aim of the present study was to investigate the effect of ZEN exposure of BOEC on the immune-related cytokine expression in response to bovine sperm. At concentrations of 100 and 1000ng/mL, ZEN induced the expression of TNF and IL1B (pro-inflammatory cytokines) as well as IL8 (chemokine) in BOEC in a dose-dependent manner. Furthermore, ZEN induced PTGES expression and PGE2 secretion in BOEC. Sperm co-culture induced an anti-inflammatory response in BOEC with upregulation of TGFB, secretion of PGE2 and downregulation of TNF. Most importantly, ZEN at 1-1000ng/mL eliminated the response of BOEC to sperm. Estradiol-17β (5ng/mL) treatment did not produce the same effects as ZEN, suggesting that the response of BOEC to ZEN is, at least in part, not mediated by estrogen receptors. Taken together, ZEN can produce inflammatory effects on BOEC by stimulating the expressions of pro-inflammatory cytokines and disrupt the normal interaction between sperm and BOEC at the level of cytokine expressions and PGE2 production. Thus, exposure of the bovine oviduct to ZEN may negatively affect sperm survival and reduce fertility.

    Original languageEnglish
    Pages (from-to)158-163
    Number of pages6
    JournalReproductive Toxicology
    Volume74
    DOIs
    Publication statusPublished - Dec 2017

    Keywords

    • Zearalenone
    • Oviduct
    • Sperm
    • Cytokine
    • Inflammation

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