Zearalenone-induced changes in the lymphoid tissue and mucosal nerve fibers in the porcine ileum

• Autorzy: Obremski K. , Gonkowski S. , Wojtacha P.
• Języki publikacji: EN

Abstrakty

EN

This is the first study to examine zearalenone-(ZEN) induced changes in the immune system of the ileum and substance P-(SP-) and vasoactive intestinal peptide-(VIP-) immunoreactive nerve fibers in the mucosa, which participate in the regulation of intestinal functions under physiological conditions and during pathological processes. The aim of this study was also to identify potential relationships between selected immune and neural elements in ileal Peyer's patches in pigs that were and were not exposed to ZEN. The experiment was performed on 10 prepubertal gilts divided into two groups: the experimental group (n=5) where ZEN was administered at 0.1 mg kg-1 feed day-1 for 42 days, and the control group (n=5) which was administered a placebo. The tissue levels of cytokines were determined by enzyme-linked immunosorbent assay which revealed elevated concentrations of IL-12/23 40p and IL-1 ß in animals exposed to ZEN. Flow cytometry revealed a lower percentage of CD21+ lymphocytes in pigs exposed to ZEN in comparison with control animals. The tissue levels of neuropeptides were evaluated in the dot blot procedure which demonstrated higher concentrations of VIP and SP in experimental pigs. In experimental animals, numerous VIP-like immunoreactive processes were observed, and SP-immunoreactive nerve fibers formed a very dense network. Our results demonstrate for the first time that ZEN can modify the chemical coding of nerve structures in the gastrointestinal system. Those modifications can be attributed to ZEN's impact on estrogen receptors or its pro-inflammatory properties, and they reflect changes that take place in the nervous system at the transcriptional, translational and metabolic level.

• Wydawca: -
• Czasopismo: Polish Journal of Veterinary Sciences
• Rocznik: 2015
• Tom: 18
• Numer: 2
• Opis fizyczny: p.357-365,fig.,ref.

Twórcy

autor

Obremski K.

• Department of Veterinary Prevention and Feed Hygiene, Faculty of Veterinary Medicine, University of Warmia and Mazury in Olsztyn, Oczapowskiego 13, 10-718 Olsztyn, Poland

autor

Gonkowski S.

• Department of Clinical Physiology, Faculty of Veterinary Medicine, University of Warmia and Mazury in Olsztyn, Oczapowskiego 13, 10-957 Olsztyn, Poland

autor

Wojtacha P.

• Department of Pathophysiology, Faculty of Veterinary Medicine, University of Warmia and Mazury in Olsztyn, Oczapowskiego 13, 10-957 Olsztyn, Poland

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Identyfikatory

DOI

10.1515/pjvs-2015-0046