This study reports our observations on the correlation between HLA-DR2 subtypes and their DR-DQ haplotypes in patients with tuberculoid (TT) leprosy and pulmonary tuberculosis (PTB). DRB1*1501 was significantly increased in patients with PTB (90%) as compared to controls (p < 0.05); whereas the prevalence of DRB1*1502 was significantly increased in patients with TT leprosy (p < 0.05), suggesting allele-specific binding of the pathogen to form disease-causing motifs to the T-cell receptor. Among DR2-DQ haplotypes, the deviation was noted in the distribution of unique and common haplotypes in patients with TT leprosy and PTB. A significant decrease of haplotype DRB 1*1501-DRB5*0101-DQA1*0102-DQB1*0502 in TT leprosy and a significant increase of DRB1*1501-DRB5*0101-DQA1*0103-DQB1*0601 in PTB patients were observed. The occurrence of specific DR2 subtypes and their haplotypes in the two disease groups suggests their involvement in disease pathogenesis.
|Original language||English (US)|
|Number of pages||8|
|Journal||International Journal of Leprosy|
|State||Published - Jan 1 1995|
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