Anti-chromatin antibodies have recently been described in patients with systemic lupus erythematosus (SLE) and it has been suggested that their presence is associated with lupus nephritis.
Department of Autoimmune Diseases, Institut Clínic d'Infeccions i Immunologia, Hospital Clínic, Institut d'Investigacions Biomédiques August Pi i Sunyer, Barcelona, Catalonia, Spain. rcervera@clinic.ub.es