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Histocompatibility antigen combinations in rheumatoid arthritis
Clinical and Experimental Rheumatology
|January 1, 1983
Summary
Certain combinations of human leukocyte antigen (HLA) genes within the major histocompatibility complex (MHC) appear to increase rheumatoid arthritis (RA) susceptibility in Caucasian populations. These findings highlight the role of specific MHC gene combinations in RA predisposition.
Area of Science:
- Immunogenetics
- Rheumatology
- Human Genetics
Background:
- Rheumatoid arthritis (RA) is a complex autoimmune disease with a known genetic component.
- The Major Histocompatibility Complex (MHC) plays a crucial role in immune regulation and is implicated in autoimmune diseases.
Purpose of the Study:
- To investigate the frequencies of specific human leukocyte antigen (HLA) antigens in Caucasian patients with rheumatoid arthritis.
- To identify potential associations between combinations of MHC genes and rheumatoid arthritis susceptibility.
Main Methods:
- Serologic typing was performed to determine the frequencies of HLA-A, -B, -C, DR, and MT lymphocyte alloantigens.
- Frequencies in 65 Caucasian RA patients were compared to those in a control group of normal individuals.
Main Results:
- Several HLA antigens showed altered frequencies in RA patients compared to controls.
- Significant associations were observed between specific HLA antigen combinations and RA, including HLA-A1-DR4, A1-MT2, Bw40-DR4, and Cw3-DR4.
Conclusions:
- The study suggests that combinations of genes within the MHC are influential in predisposing individuals to rheumatoid arthritis.
- These findings underscore the importance of MHC genetics in the pathogenesis of RA.