title: An association between HLA DRI and lichen planus.
abstract: Serological typing for HLA Class II antigens in 72 patients with lichen planus (LP) revealed a highly significant association with HLA DRI and MTI (DQWI). DRI was present in 80% of patients with generalized LP, 54% with localized LP, 56% of patients with drug-induced LP and in 31% of patients with mucosal LP, compared with 25% of normal controls. MTI (DQWI) was found in 83% of the LP group and 62% of the normal controls. These findings strongly suggest a genetic predisposition or susceptibility to the development of generalized LP and perhaps also to drug-induced LP.
mesh_terms: D000328:Adult; D000368:Aged; D005260:Female; D006684:HLA-DR Antigens; D015798:HLA-DR1 Antigen; D000949:Histocompatibility Antigens Class II / Q000032:analysis*; D006801:Humans; D008010:Lichen Planus / Q000139:chemically induced / Q000276:immunology* / Q000473:pathology; D008297:Male; D008875:Middle Aged; D012867:Skin / Q000473:pathology
chemical_list: D006684:HLA-DR Antigens; D015798:HLA-DR1 Antigen; D000949:Histocompatibility Antigens Class II