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HLA and alveolar echinococcosis
T H Eiermann1, F Bettens, P Tiberghien
1Department of Transfusion Medicine, University of Ulm, Red Cross Blood Bank Ulm, Germany. eiermann@uke.uni-hamburg.de
Tissue Antigens
|October 2, 1998
Summary
Human leukocyte antigen (HLA) gene variations influence susceptibility to alveolar echinococcosis. Specific HLA types, like HLA-DRB1*11, may offer protection, while others, such as HLA-DQB1*02, indicate a higher risk for progressive disease.
Area of Science:
- Immunogenetics
- Parasitology
- Human Medicine
Background:
- Susceptibility to Echinococcus multilocularis infection in animal models is linked to host factors.
- Human leukocyte antigen (MHC) polymorphism may influence host resistance and disease progression in alveolar echinococcosis.
Purpose of the Study:
- To investigate human leukocyte antigen (HLA) polymorphism as a marker for susceptibility and disease course in alveolar echinococcosis.
- To identify specific HLA alleles associated with protection or risk in patients with alveolar echinococcosis.
Main Methods:
- Studied HLA-A, -B, -DRB1, -DQB1, and -DPB1 polymorphism in 151 alveolar echinococcosis patients.
- Compared HLA allele frequencies between patients (categorized as cured, regressive, or progressive) and healthy controls.
Main Results:
- HLA-DRB1*11 was associated with a reduced risk of developing alveolar echinococcosis (OR=0.55, P=0.01).
- HLA-DQB1*02 was more frequent in patients with progressive disease compared to those with regressive disease (P=0.02).
Conclusions:
- HLA-DRB1*11 may confer protection against alveolar echinococcosis.
- HLA-DQB1*02 may indicate an increased risk for progressive disease development.
- Findings could aid in identifying immunodominant T-cell epitopes of E. multilocularis.