The Local Defender and Functional Mediator: Gut Microbiome

Area of Science:

• Microbiology
• Immunology
• Gastroenterology

Background:

• The gut microbiome co-evolves with its host, influencing health from birth.
• Gut dysbiosis is increasingly linked to immune, metabolic, infectious, and neurological diseases.
• Mechanisms include gut barrier modulation, the microbiome-gut-brain axis, and metabolite production, such as short-chain fatty acids (SCFAs).

Purpose of the Study:

• To review recent research on the gut microbiome's influence on local gut functions and systemic host modulation.
• To explore the impact of factors like diet and antibiotics on the gut microbiome.
• To highlight the role of SCFAs in host-microbiome interactions.

Main Methods:

• Literature review of recent scientific research.
• Analysis of studies investigating gut microbiome composition and function.
• Examination of host-microbiome interactions and their impact on health and disease.

Main Results:

• The gut microbiome significantly influences local gut structure, function, and metabolism.
• Systemic host modulation by the gut microbiome is evident across various physiological processes.
• Factors like diet and antibiotics demonstrably affect the gut microbiome's composition and activity.

Conclusions:

• Immune homeostasis relies on the balance of immune cells and cytokines, potentially influenced by the gut microbiome.
• Microbiota-derived SCFAs are crucial mediators connecting the gut microbiome to local and systemic host functions.
• Understanding these interactions may pave the way for microbiome-targeted disease prevention and treatment strategies.