Investigation of HLA susceptibility alleles and genotypes with hematological disease among Chinese Han population.

ABSTRACT

Several genes involved in the pathogenesis have been identified, with the human leukocyte antigen (HLA) system playing an essential role. However, the relationship between HLA and a cluster of hematological diseases has received little attention in China. Blood samples (n = 123913) from 43568 patients and 80345 individuals without known pathology were genotyped for HLA class I and II using sequencing-based typing. We discovered that HLA-A*1101, B*4001, C*0102, DQB1*0301, and DRB1*0901 were prevalent in China. Furthermore, three high-frequency alleles (DQB1*0301, DQB1*0602, and DRB1*1501) were found to be hazardous in malignant hematologic diseases when compared to controls. In addition, for benign hematologic disorders, 7 high-frequency risk alleles (A*0101, B*4601, C*0102, DQB1*0303, DQB1*0502, DRB1*0901, and DRB1*1454) and 8 high-frequency susceptible genotypes (A*1101-A*1101, B*4601-B*5801, B*4601-B*4601, C*0102-C*0304, DQB1*0301-DQB1*0502, DQB1*0303-DQB1*0601, DRB1*0901-DRB1*1501, and DRB1*1454-DRB1*1501) were observed. To summarize, our findings indicate the association between HLA alleles/genotypes and a variety of hematological disorders, which is critical for disease surveillance.