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HLA antigens in microscopic polyarteritis (MP) with renal involvement
C Papasteriades1, D Hatziyannakos, M Siakotos
1Department of Immunology and Histocompatibility, Evangelismos Hospital, Athens, Greece.
Disease Markers
|April 1, 1997
Summary
Human Leukocyte Antigen (HLA) gene variants are associated with microscopic polyarteritis. Specific HLA types like HLA-A26 and HLA-A11 showed increased frequency, while HLA-DR3 was decreased in patients, impacting disease outcome.
Area of Science:
- Immunogenetics
- Rheumatology
- Nephrology
Background:
- Microscopic polyarteritis (MPA) is a systemic vasculitis with potential renal involvement.
- The role of Human Leukocyte Antigen (HLA) genes in MPA pathogenesis and prognosis is not fully understood.
Purpose of the Study:
- To investigate the association between specific HLA gene products and MPA in a Greek cohort.
- To explore the potential influence of HLA types on disease expression and treatment response.
Main Methods:
- Serological typing of HLA-A, B, C, DR, and DQ loci was performed.
- A cohort of 23 MPA patients with renal involvement was compared to 405 healthy Greek individuals.
Main Results:
- Increased frequencies of HLA-A26 and HLA-A11 were observed in MPA patients compared to controls.
- A decreased frequency of HLA-DR3 was noted in the patient group.
- Five of six non-responding patients carried the HLA-DR5 allele.
Conclusions:
- HLA gene products may play a role in the susceptibility to microscopic polyarteritis.
- Specific HLA alleles might influence the clinical presentation and treatment outcomes in MPA patients.