Related Experiment Videos
Immunological resistance to dermatophyte infections
1Department of Dermatology, University of Minnesota Medical School, Minneapolis.
Advances in Dermatology
|January 1, 1987
Summary
Cell-mediated immunity is crucial for controlling dermatophytic fungal infections by limiting spread and clearing the fungus. Its absence leads to severe, chronic infections, highlighting its importance in host defense.
Area of Science:
- Immunology
- Dermatology
- Mycology
Background:
- Dermatophytic fungus infections commonly affect the stratum corneum.
- Host defense involves both nonspecific and specific immune factors.
- Cell-mediated immunity is the primary mechanism against dermatophyte invasion.
Purpose of the Study:
- To elucidate the host immune mechanisms controlling dermatophytic fungal infections.
- To understand the roles of cell-mediated immunity, complement, and antibodies in fungal defense.
- To investigate factors contributing to severe and chronic infections.
Main Methods:
- Review of existing literature on host immune responses to dermatophytic fungi.
- Analysis of the roles of cellular and humoral immunity in infection control.
- Examination of the impact of immune deficiencies on infection outcomes.
Main Results:
- Cell-mediated immunity effectively limits dermatophyte spread and promotes fungal clearance.
- Absence of cell-mediated immunity results in severe, widespread, and chronic infections.
- Complement and polymorphonuclear leukocytes inhibit fungal growth in viable tissues, promoting clearance via inflammation and epidermal turnover.
- The role of specific antibodies is minor; high levels do not prevent or resolve infection, though IgE antibodies are associated with chronic cases.
Conclusions:
- Cell-mediated immunity is essential for controlling dermatophytic fungal infections.
- While complement and polymorphonuclear leukocytes contribute, they are secondary to cell-mediated immunity.
- Antibody responses appear to play a limited role in host defense against these fungi.