3. For cytopenias that are immune mediated, participants must be BILAG hematologic category A. Participants must have an inability to maintain platelets > 15,000, an inability to prevent active bleeding without transfusion, an inability to maintain hemoglobin > 7.0, or an inability to prevent cardiovascular disease without transfusion. In addition, participants must fail corticosteroids (either oral prednisone > 0.5 mg/kg/day for more than 6 months or pulse methylprednisolone for at least one cycle of three days), be refractory to IVIG, and at least one of the following: azathioprine at 2 mg/kg/day for at least 3 months, mycophenolate mofetil 2 grams daily for more than 3 months, cyclophosphamide intravenously or orally for at least 3 months, or cyclosporine at least 3 mg/kg/day for at least 3 months, danazol for at least 3 months, or splenectomy.