Back ضد ذاتي (مناعة) Arabic Autoantitijelo BS Autoanticòs Catalan Autoprotilátka Czech Autoantikörper German Autoanticuerpo Spanish Autoantikehad Estonian Autoantigorputz Basque اتوآنتیبادی Persian Auto-anticorps French
An autoantibody is an antibody (a type of protein) produced by the immune system that is directed against one or more of the individual's own proteins. Many autoimmune diseases (notably lupus erythematosus) are associated with such antibodies.