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Related Experiment Videos

Histocompatibility antigens in progressive systemic sclerosis (PSS; scleroderma)

C J Lynch, G Singh, T L Whiteside

    Journal of Clinical Immunology
    |October 1, 1982
    PubMed
    Summary

    This study investigated human leukocyte antigen (HLA) associations in progressive systemic sclerosis (PSS). While no general HLA-A or -B links were found, specific HLA types like Bw35 and DR1 showed associations in diffuse PSS and pulmonary fibrosis subsets.

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    STUDIES ON THE RELATION BETWEEN TUMOR SUSCEPTIBILITY AND HEREDITY. I.

    The Journal of experimental medicine·2009

    Area of Science:

    • Immunogenetics
    • Rheumatology
    • Dermatology

    Background:

    • Progressive systemic sclerosis (PSS), also known as scleroderma, is an autoimmune disease with complex genetic factors.
    • Human leukocyte antigen (HLA) genes are crucial in immune regulation and have been implicated in autoimmune diseases.

    Purpose of the Study:

    • To investigate the association of HLA-A, HLA-B, and HLA-DR antigens with progressive systemic sclerosis (PSS).
    • To explore potential correlations between specific HLA types and clinical subtypes of PSS, including diffuse scleroderma and pulmonary fibrosis.

    Main Methods:

    • HLA typing was performed on a cohort of patients with PSS.
    • Antigen frequencies were compared between PSS patients and control groups.
    • Statistical analyses were used to determine significant associations, including corrected p-values.

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    Main Results:

    • No significant differences in HLA-A or HLA-B antigen frequencies were observed in the overall PSS cohort.
    • An increased frequency of HLA-Bw35 was noted in patients with diffuse PSS (PSS-DS).
    • An increased frequency of HLA-DR1 was observed in PSS-DS patients, and HLA-DR3 was associated with pulmonary fibrosis, while HLA-DR4 was decreased in this subset.
    • Serum antibodies to centromere were more frequent in DR1-positive patients.

    Conclusions:

    • Specific HLA antigens, particularly Bw35 and DR1, may be associated with distinct clinical manifestations of PSS.
    • The study did not confirm previously reported associations of PSS with the HLA-B8/DR3 haplotype or HLA-DR5.
    • Further research is needed to elucidate the role of these HLA associations in PSS pathogenesis and clinical outcomes.