Fungi facilitate gut healing

Area of Science:

• Microbiology
• Gastroenterology
• Immunology

Background:

• Intestinal barrier integrity is crucial for health.
• Dysfunction of the intestinal barrier is implicated in various gastrointestinal diseases.
• Commensal microorganisms play a role in maintaining gut homeostasis.

Purpose of the Study:

• To investigate the role of proteins secreted by commensal fungi in intestinal repair.
• To identify specific fungal proteins that promote healing of the intestinal lining.

Main Methods:

• Mice models were used to study intestinal repair.
• A specific protein secreted by a mouse commensal fungus was isolated and characterized.
• The effect of this protein on intestinal epithelial cells was assessed in vitro and in vivo.

Main Results:

• A protein secreted by the mouse commensal fungus *Malassezia globosa* was identified.
• This protein significantly accelerated the repair of chemically induced intestinal damage in mice.
• The protein demonstrated the ability to promote proliferation and migration of intestinal epithelial cells.

Conclusions:

• A fungal protein can stimulate intestinal repair, highlighting a novel therapeutic target.
• This finding opens new avenues for developing treatments for inflammatory bowel diseases and other gastrointestinal disorders.
• The study underscores the complex interplay between commensal fungi and host intestinal health.