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Cell-mediated immunity in subjects immunized with HLA antigens
Haematologia
|January 1, 1977
Summary
Most subjects immunized against human leukocyte antigen (HLA) developed cell-mediated immunity, with some producing HLA antibodies. Cellular and humoral responses were complementary, and in vivo skin tests correlated with in vitro migration inhibition tests.
Area of Science:
- Immunology
- Transplantation Science
Background:
- Human leukocyte antigen (HLA) compatibility is crucial for successful transplantation.
- Immune responses to HLA antigens can involve both cellular and humoral mechanisms.
Purpose of the Study:
- To investigate the cellular immune response in individuals immunized against HLA antigens.
- To compare in vitro and in vivo methods for detecting cell-mediated immunity to HLA.
Main Methods:
- Cellular immune reactions were assessed using the capillary migration inhibition test (in vitro).
- Skin tests were performed in vivo to evaluate cell-mediated immunity.
- Humoral immune responses were monitored for HLA antibody production.
Main Results:
- A majority of immunized subjects (10/13) demonstrated cell-mediated immunity.
- HLA antibody production was observed in a smaller subset of subjects.
- Results from in vitro and in vivo tests showed good correlation.
Conclusions:
- Immunization against HLA antigens elicits a predominantly cell-mediated immune response.
- Humoral and cellular immune responses appear complementary.
- Both migration inhibition and skin tests are reliable indicators of HLA-specific cellular immunity.