Emerging molecular insights into the interaction between probiotics and the host intestinal mucosa

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Abstract

Probiotic bacteria can modulate immune responses in the host gastrointestinal tract to promote health. The genomics era has provided novel opportunities for the discovery and characterization of bacterial probiotic effector molecules that elicit specific responses in the intestinal system. Furthermore, nutrigenomic analyses of the response to probiotics have unravelled the signalling and immune response pathways which are modulated by probiotic bacteria. Together, these genomic approaches and nutrigenomic analyses have identified several bacterial factors that are involved in modulation of the immune system and the mucosal barrier, and have revealed that a molecular 'bandwidth of human health' could represent a key determinant in an individual's physiological responsiveness to probiotics. These approaches may lead to improved stratification of consumers and to subpopulation-level probiotic supplementation to maintain or improve health, or to reduce the risk of disease
Original languageEnglish
Pages (from-to)66-78
JournalNature Reviews Microbiology
Volume10
DOIs
Publication statusPublished - 2012

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Keywords

  • regulatory t-cells
  • lactobacillus-rhamnosus gg
  • human gut microbiome
  • toll-like receptor-2
  • antibiotic-associated diarrhea
  • inflammatory-bowel-disease
  • placebo-controlled trial
  • tight junction proteins
  • murine dendritic cells
  • innate immune-system

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