Inclusion Criteria

DISEASE CHARACTERISTICS:

- Histologically confirmed low grade B-cell lymphoma

- Measurable residual disease after maximal response to prior chemotherapy OR

- Indolent disease not yet requiring therapy

- No congenital immunodeficiency associated lymphoma

- No primary lymphoma of the brain

- No active brain involvement or leptomeningeal disease NOTE: A new classification
scheme for adult non-Hodgkin's lymphoma has been adopted by PDQ. The terminology of
"indolent" or "aggressive" lymphoma will replace the former terminology of "low",
"intermediate", or "high" grade lymphoma. However, this protocol uses the former
terminology.

PATIENT CHARACTERISTICS:

Age:

- 18 and over

Performance status:

- Karnofsky 50-100%

Life expectancy:

- At least 4 months

Hematopoietic:

- Neutrophil count at least 1,500/mm3

- Platelet count at least 100,000/mm3

- Hemoglobin at least 10 g/dL

Hepatic:

- Bilirubin less than 2.0 mg/dL

- SGOT/SGPT no greater than 2.5 times upper limit of normal (ULN) (no greater than 5
times ULN if liver metastases present)

Renal:

- Creatinine no greater than 2.0 mg/dL

- Calculated creatinine clearance at least 60 mL/min

Cardiovascular:

- No uncontrolled angina, heart failure, or arrhythmia

- No acute changes on EKG

Other:

- Not pregnant or nursing

- Fertile patients must use effective contraception

- HIV negative

- No AIDS

- Adequate nutritional status (total protein at least 60.0 g/L)

- No active bacterial infections (e.g., abscess or with fistula)

- No nonmalignant disease that would preclude study

- No history of alcoholism, drug addiction, or psychotic disorders that would preclude
study

PRIOR CONCURRENT THERAPY:

Biologic therapy:

- Prior bone marrow transplantation allowed

- At least 4 weeks since prior immunotherapy or cytokines

Chemotherapy:

- See Disease Characteristics

- Prior intensive chemotherapy with stem cell support allowed

- At least 4 weeks since prior chemotherapy (6 weeks for nitrosoureas, mitomycin, or
high dose carboplatin)

Endocrine therapy:

- No concurrent corticosteroids

Radiotherapy:

- At least 4 weeks since prior radiotherapy to more than 25% of bone marrow

Surgery:

- Recovered from prior surgery

- No prior solid organ transplantation

Other:

- No concurrent antiinflammatory agents including aspirin, or over the counter or
prescription nonsteroidal antiinflammatory drugs

- No concurrent immunosuppressive agents

- No other concurrent investigational agents