MicroRNAs at the epicenter of intestinal homeostasis

Area of Science:

• Gastroenterology and Immunology
• Molecular Biology
• Microbiome Research

Background:

• Intestinal homeostasis is vital for gut health, involving intricate communication between gut microbiota, intestinal epithelial cells, and the host immune system.
• While regulatory proteins and signaling pathways are well-studied, the role of non-coding RNAs, particularly microRNAs (miRNAs), in intestinal homeostasis is an emerging area of research.
• Gut microbes significantly influence the host immune system, modulating gene expression and eliciting tolerant responses essential for symbiotic relationships.

Purpose of the Study:

• To review the latest scientific understanding of how microRNAs (miRNAs) contribute to the regulation of intestinal homeostasis.
• To elucidate the central role of miRNAs in the signaling networks that maintain the balance between microbiota, intestinal cells, and immunity.
• To highlight the emerging importance of non-coding RNAs in the context of gut health and disease.

Main Methods:

• This review synthesizes recent findings from preclinical and clinical studies.
• It analyzes the literature on microRNA (miRNA) involvement in host-microbiota interactions.
• The focus is on identifying key miRNAs and their regulatory mechanisms in maintaining intestinal homeostasis.

Main Results:

• MicroRNAs (miRNAs) are identified as key players at the core of signaling networks regulating intestinal homeostasis.
• Evidence shows miRNAs modulate gene expression in response to gut microbiota signals.
• miRNAs are involved in immune cell sensing of gut microbes, promoting tolerant responses.

Conclusions:

• MicroRNAs (miRNAs) are critical regulators of intestinal homeostasis, bridging communication between the gut microbiota, intestinal epithelium, and immune system.
• The emerging role of miRNAs in maintaining gut health underscores their potential as therapeutic targets.
• Further research into miRNA-mediated regulation is essential for understanding and treating gut-related disorders.