Commensal bacteria mediated defenses against pathogens.

Abstract:

:Commensal bacterial communities residing within the intestinal lumen of mammals have evolved to flourish in this microenvironment. To preserve this niche, commensal bacteria act with the host to prevent colonization by invasive pathogens that induce inflammation and disrupt the intestinal niche commensal bacteria occupy. Thus, it is mutually beneficial to the host and commensal bacteria to inhibit a pathogen's ability to establish an infection. Commensal bacteria express factors that support colonization, maximize nutrient uptake, and produce metabolites that confer a survival advantage over pathogens. Further, commensal bacteria stimulate the host's immune defenses and drive tonic expression of anti-microbial factors. In combination, these mechanisms preserve the niche for commensal bacteria and assist the host in preventing infection.

journal_name

Curr Opin Immunol

authors

Abt MC,Pamer EG

doi

10.1016/j.coi.2014.03.003

subject

Has Abstract

pub_date

2014-08-01 00:00:00

pages

16-22

eissn

0952-7915

issn

1879-0372

pii

S0952-7915(14)00048-X

journal_volume

29

pub_type

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