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Frequency analysis of HLA class I alleles in Iranian patients with progressive and non-progressive chronic lymphocytic leukemia.

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posted on 2024-10-29, 12:15 authored by M Hojjat-Farsangi, SM Razavi, RA Sharifian, F Shokri
Chronic lymphocytic leukemia (CLL) is a malignant disorder of B cell origin, with low incidence in Asian populations. In this study we investigated the HLA-class I A and B allele frequencies in 87 Iranian CLL patients and 64 healthy controls using sequence specific primer-polymerase chain reaction (SSP-PCR) technique. Our results showed increased frequencies of HLA-A11:01 (p=0.02) and HLA-B35:01 (p=0.002) alleles and HLA-A11:01/B35:01 haplotype (p=0.036) and decreased frequencies of HLA-A01:01 (p=0.02), HLA-A26:01 (p=0.03), HLA-B65:01 (p=0.03) and HLA-B53:01 (p<0.00001) alleles in CLL patients compared to the control group. Classification of the patients into non-progressive and progressive groups did not reveal significant differences for the frequency of any of the HLA-A and -B alleles or haplotypes between these two subtypes. Comparison between patients with immunoglobulin heavy chain variable region genes (IGHV) mutated (n=56) and unmutated (n=31) subtypes showed a significant increase in HLA-A32:01 (p=0.05) and HLA-A33:01 (p=0.05) alleles in IGHV unmutated patients compared to IGHV mutated patients. Similarly, a higher frequency of HLA-B52:01 (p=0.037) alleles was observed in CD38(+) compared with CD38(-) patients. Our results obtained from an Iranian population indicate that CLL is associated with distinct HLA class I alleles and haplotypes some of which are linked to disease prognostic factors.

History

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  • Accepted manuscript

Publication status

Published

Sub type

Article

Journal

Hum Immunol

ISSN

0198-8859

eISSN

1879-1166

Volume

75

Issue

2

Pagination

170-175

Language

  • eng

Original self archiving date

2013-12-17

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