The Role of HLA-DRB1 Alleles in Pulmonary Cystic Fibrosis

Article Type:
Research/Original Article (دارای رتبه معتبر)

Cystic fibrosis (CF) is the most common lethal autosomal recessive disease in white Caucasians. It affects many organs including the lung, pancreas, and liver. Whilst CF is a monogenic disease, several studies revealed a complex relationship between genotype and clinical phenotype of diseases. We examined the expression of human leukocyte antigen (HLA) class II alleles among Iranian CF patients with disease-related microbial infection. This study was conducted on 50 hospitalized CF patients (27 males, 23 females aged 15.5±6.5 years), and 50 healthy age- and gender-matched control subjects. 5ml whole blood was harvested and after isolation of genomic DNA, HLA-DRB1 subtypes were determined by single specific primer polymerase chain reaction methods. HLA-DRB1*10 was less frequent and HLA-DRB1*04 and HLA-DRB1*11 was the most frequent allele in CF patients, but none reached significance. HLA-DRB1*04 allele was frequently seen among16 CF patients with high serum IgE levels (430.25±219.7 IU/mL) and 27 CF patients that were positive for Pseudomonas aeruginosa colonization. A total of 31 CF patients had candida Albicans colonization in whom HLA-DRB1*11 was mostly seen. A total of 3 CF patients had allergic bronchopulmonary aspergillosis and two were diabetic. The DR4 and DR11 serotypes that recognize the HLA-DRB1*04 and HLA-DRB1*11 gene products respectively are not significantly enriched in the Iranian CF population. Further research should be conducted on DR4 and DR11 in CF patients to understand their possible role in infection and IgE expression.

Iranian Journal of Allergy, Asthma and Immunology, Volume:21 Issue: 2, Apr 2022
189 to 196  
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