HLA-B and nasopharyngeal carcinoma: More specifically, studies have reproducibly reported associations with NPC for the following HLA class I alleles: HLA-A*0207 (risk allele in LD with HLA-B*4601), HLA-A*1101 (protective allele in LD with HLA-B*13), and HLA-B*5801 (risk allele in LD with HLA-A*3303) (9, 14).