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Adjuvant properties of Micropolyspora faeni
International Archives of Allergy and Applied Immunology
|January 1, 1977
Summary
Micropolyspora faeni acts as an adjuvant, enhancing cell-mediated immunity but not antibody production in rabbits. This suggests a role in hypersensitivity pneumonitis, like farmer's lung.
Area of Science:
- Immunology
- Microbiology
Background:
- Micropolyspora faeni is a key antigen in farmer's lung.
- Adjuvants enhance immune responses to antigens.
Purpose of the Study:
- To evaluate the adjuvant properties of Micropolyspora faeni.
- To compare immune responses using different adjuvants.
Main Methods:
- Rabbits were immunized with bovine serum albumin (BSA) in Freund's adjuvants (CFA, IFA) and M. faeni-containing adjuvant (MFA).
- Antibody and cell-mediated immune responses were assessed.
Main Results:
- M. faeni (MFA) significantly enhanced macrophage migration inhibition, lymphocyte stimulation, and delayed skin reactivity, similar to CFA.
- No adjuvant effect on specific antibody production was observed with MFA.
Conclusions:
- Micropolyspora faeni acts as a selective immunologic adjuvant for delayed hypersensitivity.
- This adjuvant property may contribute to mononuclear cell infiltrates in hypersensitivity pneumonitis.