Interaction of the mucosal barrier with accessory immune cells during fungal infection

Area of Science:

• Immunology
• Microbiology
• Cell Biology

Background:

• The mucosal epithelium is crucial for host defense against microorganisms.
• Innate immune responses are initiated by pattern recognition receptors sensing fungal components.
• Toll-like receptors (TLRs) are key sensors for fungal pathogens, triggering defense mechanisms.

Purpose of the Study:

• To review the role of epithelial Toll-like receptors (TLRs) in oral immunity.
• To elucidate the molecular mechanisms of innate immune responses against Candida albicans.
• To highlight the cooperative interaction between oral epithelium and neutrophils.

Main Methods:

• Review of recent scientific literature on epithelial immunity and fungal infections.
• Analysis of molecular pathways involved in host-pathogen recognition.
• Discussion of immunological crosstalk between epithelial cells and myeloid cells.

Main Results:

• Oral epithelial cells secrete cytokines upon Candida albicans infection, activating myeloid cells.
• Epithelial TLRs play a significant role in recognizing fungal pathogens.
• Cooperation between epithelial cells and neutrophils is vital for mucosal defense.

Conclusions:

• Epithelial TLRs are essential for initiating antifungal innate immunity in the oral cavity.
• The interplay between oral epithelium and neutrophils effectively combats Candida albicans invasion.
• Understanding these mechanisms enhances strategies for mucosal protection against fungal pathogens.