RATIONALE: Drugs used in chemotherapy use different ways to stop cancer cells from dividing so they stop growing or die. Combining chemotherapy with autologous stem cell transplantation may allow the doctor to give higher doses of chemotherapy drugs and kill more cancer cells. Giving immunotherapy using cyclosporine, interferon gamma, and interleukin-2 after stem cell transplantation may help the transplanted cells make an immune response and kill any remaining cancer cells. It is not yet known whether high-dose chemotherapy followed by autologous stem cell transplantation is more effective with or without immunotherapy.