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Type of publication: Journal Article
Type of document: Full Paper

Year: 2020

Authors: Menanteau-Ledouble, S; Nöbauer, K; Razzazi-Fazeli, E; El-Matbouli, M

Title: Effects of Yersinia ruckeri invasion on the proteome of the Chinook salmon cell line CHSE-214.

Source: Sci Rep. 2020; 10(1):11840

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Authors Vetmeduni Vienna:

El-Matbouli Mansour
Menanteau-Ledouble Simon
Nöbauer Katharina
Razzazi-Fazeli Ebrahim

Vetmed Research Units
University Clinic for Poultry and Fish Medicine, Clinical Unit of Fish Medicine

Project(s): Host factors contributing to Yersinia ruckeri`s invasiveness

Yersinia ruckeri is an important bacterial pathogen of fish, in particular salmonids, it has been associated with systemic infections worldwide and, like many enteric bacteria, it is a facultative intracellular pathogen. However, the effect of Y. ruckeri's interactions with the host at the cellular level have received little investigation. In the present study, a culture of Chinook Salmon Embryo (CHSE) cell line was exposed to Y. ruckeri. Afterwards, the proteins were investigated and identified by mass spectrometry and compared to the content of unexposed cultures. The results of this comparison showed that 4.7% of the identified proteins were found at significantly altered concentrations following infection. Interestingly, infection with Y. ruckeri was associated with significant changes in the concentration of surface adhesion proteins, including a significantly decreased presence of β-integrins. These surface adhesion molecules are known to be the target for several adhesion molecules of Yersiniaceae. The concentration of several anti-apoptotic regulators (HSP90 and two DNAj molecules) appeared similarly downregulated. Taken together, these findings suggest that Y. ruckeri affects the proteome of infected cells in a notable manner and our results shed some light on the interaction between this important bacterial pathogen and its host.

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