Immunomodulatory Effects of Chronic Trichinellosis on RH Virulent Strain in Experimental Rats

Overview

Journal Pathog Glob Health

Specialties Infectious Diseases
Microbiology
Public Health

Date 2023 Mar 16

PMID 36922743

Authors

Abeer E Saad

Dalia S Ashour

Eman Rashad

Affiliations

Soon will be listed here.

Abstract

Mixed parasitic infections could affect the host immunological responses and re-design the pathogenesis of each other. The impact of () and () co-infection on the immune response remains unclear. The objective of the present study was to investigate the possible effect of chronic trichinellosis on the immune response of rats infected with virulent RH strain. Animals were divided into four groups: group I: non-infected negative control; group II: infected with ; group III: infected with and group IV: infected with then infected with 35 days post infection (co-infected group). The interaction between and was evaluated by histopathological examination of liver and brain tissues, immunohistochemical expression of inducible nitric oxide synthase (iNOS), and β-catenin in the brain tissues, and CD4 and CD8 T cells percentages, and tumor necrosis factor (TNF)-alpha expression in the spleen tissues. Along with, splenic interleukin (IL)-4 and IL-10 mRNA expression levels were measured 15 days post- infection. Our study revealed that prior infection with leads to attenuation of Th1 response against , including iNOS, TNF-α, and CD8 T-cell response with improvement of the histopathological changes in the tissues. In conclusion, in the co-infected rats, a balanced immune response has been developed with the end result, improvement of the histopathological changes in the liver and brain.

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