Faecalibacterium prausnitzii: from microbiology to diagnostics and prognostics

Area of Science:

• Microbiome Research
• Gut Health
• Bacterial Phylogeny

Background:

• Faecalibacterium prausnitzii is a dominant gut bacterium with significant health implications.
• Factors influencing its abundance and its diverse phylogenetic groups are not fully understood.
• Reduced F. prausnitzii levels are observed in various intestinal disorders.

Purpose of the Study:

• To review the phylogeny, ecophysiology, and diversity of F. prausnitzii.
• To explore strategies for modulating F. prausnitzii abundance in the gut.
• To discuss the potential of F. prausnitzii as a diagnostic and prognostic biomarker for gut diseases.

Main Methods:

• Literature review and synthesis of existing research on F. prausnitzii.
• Analysis of phylogenetic data to understand F. prausnitzii diversity.
• Discussion of studies on factors affecting F. prausnitzii abundance and its clinical applications.

Main Results:

• Identified at least two distinct F. prausnitzii phylogroups with differential distribution in health and disease.
• Highlighted the challenge in identifying factors crucial for maintaining F. prausnitzii abundance.
• Confirmed reduced F. prausnitzii levels in multiple intestinal conditions.

Conclusions:

• F. prausnitzii exhibits significant phylogenetic diversity, with potential for undiscovered species and phylogroups.
• Modulating F. prausnitzii abundance is a potential therapeutic strategy.
• F. prausnitzii shows promise as a biomarker for diagnosing and predicting gut diseases, particularly ulcerative colitis and Crohn's disease.