Basic Mechanisms.- Delineation of the Pathogenesis of Systemic Lupus Erythematosus by Using Murine Models.- Factors Contributing to Autoimmune Disease.- Control of Autoimmunity by Regulatory T Cells.- Autoimmunity, Self-Tolerance, and Immune Homeostasis: From Whole Animal Phenotypes to Molecular Pathways.- Peripheral Tolerance and Organ Specific Autoimmunity.- Autoimmune Lymphoproliferative Syndrome: Types I, II, and Beyond.- Pathogenesis.- The Role of MHC Class II Molecules in the Pathogenesis and Prevention of Type I Diabetes.- Control of Autoreactive T Cell Activation by Immunoregulatory T Cells.- Immune Tolerance and The Nervous System.- Functional Role of Epitope Spreading in the Chronic Pathogenesis of Autoimmune and Virus-Induced Demyelinating Diseases.- Therapy.- Multiple Sclerosis and Gene Expression Profiling.- Treatment of Autoimmunity by Inhibition of T Cell Costimulation.- Cytokine Blockade in Rheumatoid Arthritis.