Fusobacterium nucleatum enhances enterotoxigenic Bacteroides fragilis-mediated neuron loss and intestinal motility dysfunction.

Fusobacterium nucleatum amplifies Bacteroides fragilis-induced neuron loss and gut motility issues, with 2-hydroxybutyric acid worsening neurotoxicity in mice.

• Why it matters: Understanding how gut bacteria interact to cause long-term intestinal dysfunction is crucial for developing treatments for conditions like inflammatory bowel disease and colorectal cancer.
• What they did: Researchers used mouse colonization models and human patient data to examine the effects of ETBF and F. nucleatum, focusing on bacterial toxins, metabolites, and neuronal apoptosis pathways.
• The result: F. nucleatum's metabolite increased BFT production, worsening neuron loss and dysmotility, which heightened colitis susceptibility; probiotic intervention showed potential for therapy.