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Exploration of the role of the virulence factor ElrA during Enterococcus faecalis cell infection.

Abstract：

:Enterococcus faecalis, an organism generally not pathogenic for healthy humans, has the potential to cause disease in susceptible hosts. While it seems to be equipped to interact with and circumvent host immune defense, most of the molecular and cellular mechanisms underlying the enterococcal infectious process remain elusive. Here, we investigated the role of the Enterococcal Leucine Rich protein A (ElrA), an internalin-like protein of E. faecalis also known as a virulence factor. ElrA was previously shown to prevent adhesion to macrophages. We show that ElrA does not inhibit the basic phagocytic process, but is able to prevent sensing and migration of macrophages toward E. faecalis. Presence or absence of FHL2, a eukaryotic partner of ElrA, does not affect the ElrA-dependent mechanism preventing macrophage migration. However, we highlight a partial contribution of FHL2 in ElrA-mediated virulence in vivo. Our results indicate that ElrA plays at least a dual role of which anti-phagocytic activity may contribute to dissemination of extracellular E. faecalis during infection.

journal_name

Sci Rep

journal_title

Scientific reports

authors

Nunez N,Derré-Bobillot A,Gaubert S,Herry JM,Deschamps J,Wei Y,Baranek T,Si-Tahar M,Briandet R,Serror P,Archambaud C

doi

10.1038/s41598-018-20206-6

subject

Has Abstract

pub_date

2018-01-29 00:00:00

pages

1749

issue

1

issn

2045-2322

pii

10.1038/s41598-018-20206-6

journal_volume

8

pub_type

杂志文章

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