- Infliximab, but not etanercept, induces IgM anti-double-stranded DNA autoantibodies as main antinuclear reactivity: biologic and clinical implications in autoimmune arthritis. De Rycke, L., Baeten, D., Kruithof, E., Van den Bosch, F., Veys, E.M., De Keyser, F. Arthritis Rheum. (2005)