PATIENT CHARACTERISTICS: Age: 18 and over Performance status: ECOG 0-3 OR Karnofsky 60-100% Life expectancy: At least 3 months Hematopoietic: Not specified Hepatic: Not specified Renal: Not specified Cardiovascular: No prior or concurrent significant cardiovascular disease Pulmonary: No prior or concurrent significant pulmonary disease Other: No AIDS HIV negative No prior or concurrent autoimmune disease No other concurrent major medical illness Not pregnant or nursing Fertile patients must use effective contraception