PATIENT CHARACTERISTICS: Age: 18 and over Performance status: ECOG 0-1 Life expectancy: Not specified Hematopoietic: WBC at least 3,000/mm3 Platelet count at least 100,000/mm3 No clinically significant hematologic disorder Hepatic: Bilirubin less than 2.0 mg/dL No clinically significant hepatic disease Hepatitis B surface antigen negative Renal: Creatinine less than 2.0 mg/dL No clinically significant renal disease Cardiovascular: No clinically significant cardiac disease Other: Not pregnant or nursing Fertile patients must use effective contraception Negative pregnancy test HIV-1 and HIV-2 negative HTLV-1 negative No significant psychiatric disorder that would prevent compliance No underlying condition that would preclude study therapy No autoimmune disease or other major immune system illness No active infection requiring parenteral antibiotic therapy