BtpB, a novel Brucella TIR-containing effector protein with immune modulatory functions.

Abstract:

:Several bacterial pathogens have TIR domain-containing proteins that contribute to their pathogenesis. We identified a second TIR-containing protein in Brucella spp. that we have designated BtpB. We show it is a potent inhibitor of TLR signaling, probably via MyD88. BtpB is a novel Brucella effector that is translocated into host cells and interferes with activation of dendritic cells. In vivo mouse studies revealed that BtpB is contributing to virulence and control of local inflammatory responses with relevance in the establishment of chronic brucellosis. Together, our results show that BtpB is a novel Brucella effector that plays a major role in the modulation of host innate immune response during infection.

authors

Salcedo SP,Marchesini MI,Degos C,Terwagne M,Von Bargen K,Lepidi H,Herrmann CK,Santos Lacerda TL,Imbert PR,Pierre P,Alexopoulou L,Letesson JJ,Comerci DJ,Gorvel JP

doi

10.3389/fcimb.2013.00028

subject

Has Abstract

pub_date

2013-07-08 00:00:00

pages

28

issn

2235-2988

journal_volume

3

pub_type

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