Conjugated action of two species-specific invasion proteins for fetoplacental listeriosis - Institut Pasteur Access content directly
Journal Articles Nature Year : 2008

Conjugated action of two species-specific invasion proteins for fetoplacental listeriosis

Eugenie Huillet
Olivier Dussurget
Pascale Cossart

Abstract

The ability to cross host barriers is an essential virulence determinant of invasive microbial pathogens. Listeria monocytogenes is a model microorganism that crosses human intestinal and placental barriers, and causes severe maternofetal infections by an unknown mechanism. Several studies have helped to characterize the bacterial invasion proteins InlA and InlB. However, their respective species specificity has complicated investigations on their in vivo role. Here we describe two novel and complementary animal models for human listeriosis: the gerbil, a natural host for L. monocytogenes, and a knock-in mouse line ubiquitously expressing humanized E-cadherin. Using these two models, we uncover the essential and interdependent roles of InlA and InlB in fetoplacental listeriosis, and thereby decipher the molecular mechanism underlying the ability of a microbe to target and cross the placental barrier.

Dates and versions

pasteur-02456680 , version 1 (27-01-2020)

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Olivier Disson, Solène Grayo, Eugenie Huillet, Georgios Nikitas, Francina Langa-Vives, et al.. Conjugated action of two species-specific invasion proteins for fetoplacental listeriosis. Nature, 2008, 455 (7216), pp.1114-1118. ⟨10.1038/nature07303⟩. ⟨pasteur-02456680⟩
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