The mechanisms of complement activation in normal bovine serum and normal horse serum against Yersinia enterocolitica O:9 strains with different outer membrane proteins content

• Autorzy: Mietka K. , Brzostek K. , Guz-Regner K. , Bugla-Ploskonska G.
• Języki publikacji: EN

Abstrakty

EN

Yersinia enterocolitica is a common zoonotic pathogen and facultative intracellular bacterium which can survive within blood cells. Cattle and horses are considered a reservoir of Y. enterocolitica which often causes several serious syndromes associated with yersiniosis such as abortions, premature births or infertility. The aim of our investigation was to determine the vitality of Y. enterocolitica O:9 strains (Ye9) in bovine and horse sera (NBS and NHrS) and explain the role of outer membrane proteins (OMPs) in serum resistance of these bacteria. Our previous studies demonstrated moderate human serum (NHS) resistance of the wild type Ye9 strain, whereas mutants lacking YadA, Ail or OmpC remained sensitive to the bactericidal activity of NHS. The present study showed that the wild type of Ye9 strain was resistant to the bactericidal activity of both NHrS and NBS, while Ye9 mutants lacking the YadA, Ail and OmpC proteins were sensitive to NHrS and NBS as well as to NHS. The mechanisms of complement activation against Ye9 strains lacking Ail and YadA were distinguished, i.e. activation of the classical/lectin pathways decisive in the bactericidal mechanism of complement activation of NBS, parallel activation of the classical/lectin and alternative pathways of NHrS. In this research the mechanism of independent activation of the classical/lectin or the alternative pathway of NBS and NHrS against Ye9 lacking OmpC porin was also established. The results indicate that serum resistance of Ye9 is multifactorial, in which extracellular structures, i.e. outer membrane proteins (OMPs) such as Ail, OmpC or YadA, play the main role.

• Wydawca: -
• Czasopismo: Polish Journal of Veterinary Sciences
• Rocznik: 2016
• Tom: 19
• Numer: 1
• Opis fizyczny: p.99-107,fig.,ref.

Twórcy

autor

Mietka K.

• Department of Microbiology, Institute of Genetics and Microbiology, Faculty of Biological Sciences, University of Wroclaw, S. Przybyszewskiego 63-77, 51-148 Wroclaw, Poland

autor

Brzostek K.

• Department of Applied Microbiology, Institute of Microbiology, Faculty of Biology, University of Warsaw, I. Miecznikowa 1, 02-096, Warsaw, Poland

autor

Guz-Regner K.

• Department of Microbiology, Institute of Genetics and Microbiology, Faculty of Biological Sciences, University of Wroclaw, S. Przybyszewskiego 63-77, 51-148 Wroclaw, Poland

autor

Bugla-Ploskonska G.

• Department of Microbiology, Institute of Genetics and Microbiology, Faculty of Biological Sciences, University of Wroclaw, S. Przybyszewskiego 63-77, 51-148 Wroclaw, Poland

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Identyfikatory

DOI

10.1515/pjvs-2016-0013