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 Immunoljournal_title
Current opinion in immunologyauthors
Abt MC,Pamer EGdoi
10.1016/j.coi.2014.03.003subject
Has Abstractpub_date
2014-08-01 00:00:00pages
16-22eissn
0952-7915issn
1879-0372pii
S0952-7915(14)00048-Xjournal_volume
29pub_type
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