Proteomic approach to identify candidate effector molecules during the in vitro immune exclusion of infective Teladorsagia circumcincta in the abomasum of sheep

Veterinary Research
Spiridoula AthanasiadouJohn F Huntley

Abstract

In the present study we have employed an in vitro organ challenge model to study the post-challenge responses in parasite naïve and immune gastric tissue of sheep, in an attempt to identify the host derived factors involved in immune exclusion of Teladorsagia circumcincta larvae. Proteins present in the epithelial cells and mucus from ovine abomasa following parasite challenge in previously naïve and immune animals were analysed through Matrix Assisted Laser Desorption/Ionization-Time of Flight (MALDI-Tof)-MS and shotgun proteomics. MALDI-ToF analysis of epithelial cell lysates revealed that a number of proteins identified were differentially expressed in naïve and immune cells. These included intelectin and lysozymes, which were present at higher levels in epithelial cell lysates derived from immune samples. A large number of proteins were identified in the mucosal wash from immune tissue which were not present in the mucosal wash of the naïve tissue. Some of these proteins were present in washes of immune tissue prior to the parasite challenge including immunoglobulin A, galectin 14 and 15 and sheep mast cell protease 1. However, other proteins, such as calcium activated chloride channel and intelectin were only detected in t...Continue Reading

References

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Citations

Sep 6, 2012·The American Journal of Tropical Medicine and Hygiene·Samuel Campista-LeónSylvia Páz Díaz-Camacho
Nov 19, 2019·Molecular and Biochemical Parasitology·Marla I HertzPhilip J Budge
Oct 8, 2017·Acta Tropica·Weikun ShiFangli Lu
Apr 2, 2011·Research in Veterinary Science·Alan D PembertonJeffrey P Pearson

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