AUTOANTIBODY PRODUCTION INHIBITOR

摘要

The present invention provides an autoantibody production inhibitor which can specifically suppress the autoantibodies and which can effectively prevent or treat the autoimmune disease of autoantibody type. According to the present invention, there is provided an autoantibody production inhibitor comprising, as an effective ingredient, a fusion protein which consists of a protein (X) containing a site recognized by autoantibodies which are a cause of the autoimmune disease of autoantibody type and a protein (A) containing a fragment which exhibits the antibody-dependent cellular cytotoxicity of the antibody heavy chain constant region.