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Prof. Ayman Samir Farid :: Publications:

Title:
Hepatoprotective immune response during Trichinella spiralis infection in mice.
Authors: Farid, A.S., Fath, E.M., Mido, S., Nonaka, N., Horii, Y.
Year: 2019
Keywords: Trichinella spiralis; inflammation; liver; paraoxonase-1; zoonotic nematode
Journal: Journal of Veterinary Medical Science
Volume: 9
Issue: 81
Pages: 169-176
Publisher: Not Available
Local/International: International
Paper Link:
Full paper Ayman samir_jvms-81-169.pdf
Supplementary materials Not Available
Abstract:

Infections with gastrointestinal nematodes provoke immune and inflammatory responses mediated by cytokines released from T-helper type-2 (Th2) cells. Infections with Trichinella species have been reported to differ by the host species. Previously, in rats, we observed acute liver inflammation in response to infection with Trichinella spiralis, and the rat hosts showed a series of biochemical changes characterized by a decrease in serum paraoxonase (PON) 1 activity associated with the down-regulation of hepatic PON1 synthesis. In the present study, we investigated the effect(s) of species differences on the immune response against T. spiralis infection by analyzing serum PON1 activity and the associated inflammatory/anti-inflammatory mediators in mice. There were inconsistent changes in the serum PON1 activity of mice infected with T. spiralis, and these changes were associated with significant increases in the serum levels of interleukin (IL)-2, IL-4, IL-10, IL-12 (p70), granulocyte-macrophage colony-stimulating factor, and tumor necrosis factor α during the enteric phase of the infection, while the levels of IL-5 and interferon γ were significantly increased throughout the entire experimental period. Moreover, T. spiralis infection in mice was associated with little inflammatory cell infiltration in hepatic tissues. Given the zoonotic prevalence of T. spiralis, further mechanistic research in this area is warranted.

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