Comparison of radioimmunoprecipitation versus antigen-specific assays for identification of myositis-specific autoantibodies in dermatomyositis patients

摘要

Background. To confirm the antigen specificities of autoantibodies that precipitate 140-kDa (anti-p140) or 155/140-kDa polypeptides (anti-p155/140) previously identified by radioimmunoprecipitation in Korean patients with dermatomyositis (DM) and to look into the relationship between each MSA and clinical features of DM.