Gut-brain axis interacts with immunomodulation in inflammatory bowel disease

Area of Science:

• Neurogastroenterology
• Immunology
• Microbiology

Background:

• The brain and gastrointestinal tract are crucial sensory organs with bidirectional communication regulating physiological functions.
• Emerging research links gut-brain axis communication to functional GI disorders and central nervous system (CNS) disorders.
• Inflammatory bowel disease (IBD) is prevalent, yet its pathogenesis remains unclear, with many studies focusing on brain-to-gut influences.

Purpose of the Study:

• To explore the bidirectional communication links within the gut-brain axis specifically concerning inflammatory bowel disease (IBD).
• To highlight the involvement of key components like gut microbiota, vagus nerve (VN), receptors, and immune cells in IBD regulation through the gut-brain axis.

Main Methods:

• Review of existing scientific literature on the gut-brain axis and inflammatory bowel disease (IBD).
• Analysis of studies focusing on the top-down influence of psychological and physical disorders on intestinal conditions.
• Synthesis of evidence detailing the roles of gut microbiota, vagus nerve, receptors, and immune cells in IBD via the gut-brain axis.

Main Results:

• The gut-brain axis plays a critical role in the development and progression of inflammatory bowel disease (IBD).
• Gut microbiota composition, vagus nerve signaling, specific receptors, and immune cell activity are key mediators in the gut-brain axis's influence on IBD.
• Bidirectional communication pathways are essential for understanding and potentially treating IBD.

Conclusions:

• The gut-brain axis is a significant factor in inflammatory bowel disease (IBD) pathogenesis.
• Targeting components of the gut-brain axis, including microbiota and neural pathways, may offer novel therapeutic strategies for IBD.
• Further research into the intricate mechanisms of gut-brain communication is crucial for advancing IBD treatment.