Effect of diet on pathogen performance in the microbiome

Area of Science:

• Microbiology
• Immunology
• Nutrition Science

Background:

• Commensal bacteria, diet, and immune responses shape microbiome composition.
• Microbiome community composition is vital for colonisation resistance against enteric pathogens.
• The influence of diet on microbiota and colonisation resistance is underappreciated.

Purpose of the Study:

• To review the interplay between diet, microbiota, and their metabolites.
• To explore how diet influences colonisation resistance.
• To discuss pathogen strategies for evading colonisation resistance.

Main Methods:

• Literature review of existing research on diet, microbiota, and host-pathogen interactions.
• Analysis of nutrient utilization pathways exploited by pathogens.
• Examination of microbial metabolites as nutrient sources for pathogens.

Main Results:

• Diet significantly impacts gut microbiota composition and function.
• Dietary components can either enhance or diminish colonisation resistance.
• Pathogens utilize specific nutrient pathways and microbial metabolites to thrive.

Conclusions:

• Diet is a critical factor in modulating the gut microbiome's protective functions.
• Understanding diet-microbiota-pathogen interactions is key to developing strategies against enteric infections.
• Metabolites produced by the microbiota play a dual role in health and disease.