The Research Progress on Intestinal Stem Cells and Its Relationship with Intestinal Microbiota

Area of Science:

• Gastroenterology
• Microbiology
• Cell Biology

Background:

• The intestine hosts trillions of microorganisms, forming a diverse gut microbiota crucial for intestinal mucosal barrier integrity.
• Intestinal stem cells (ISCs) are vital for epithelial renewal and are implicated in various intestinal diseases.
• The gut microbiota influences ISC proliferation and differentiation, impacting intestinal health.

Purpose of the Study:

• To review the current understanding of intestinal stem cell (ISC) models and niches.
• To explore the complex interactions between the gut microbiota and ISCs.
• To highlight the significance of microbiota-ISC interplay in intestinal disease mechanisms.

Main Methods:

• Literature review of research on intestinal stem cells and gut microbiota.
• Analysis of studies investigating the communication pathways between microbes and ISCs.
• Examination of disease models involving gut dysbiosis and ISC dysfunction.

Main Results:

• The gut microbiota, including species like Lactobacillus, directly and indirectly modulates ISC behavior.
• Salmonella infection was shown to reduce key ISC markers (Lgr5, Bmi1).
• The precise mechanisms governing microbiota-ISC interactions remain incompletely understood.

Conclusions:

• The intricate relationship between the gut microbiota and ISCs is fundamental to intestinal homeostasis.
• Further research into this interaction is essential for elucidating the pathogenesis of gut diseases.
• Targeting the microbiota-ISC axis may offer novel therapeutic strategies for intestinal disorders.