DISEASE CHARACTERISTICS:

• Histologically confirmed high-risk stage II, III, or IV soft tissue sarcoma expressing NY-ESO-1 or LAGE antigen (including, but not limited to, synovial sarcoma)
• HLA-A2 allele for NY-ESO-1 peptides
• Declined, failed, or completed standard therapy
• CNS metastases allowed if treated and stable

PATIENT CHARACTERISTICS:

Age:

• 18 and over

Performance status:

• Not specified

Life expectancy:

• At least 3 months

Hematopoietic:

• Hemoglobin at least 9.0 g/dL
• Lymphocyte count at least 500/mm3
• Platelet count at least 100,000/mm3
• No bleeding disorders

Hepatic:

• Bilirubin no greater than 2 mg/dL
• Hepatitis B and C negative

Renal:

• Creatinine no greater than 1.8 mg/dL

Cardiovascular:

• No New York Heart Association class III or IV heart disease

Other:

• Not pregnant or nursing
• Negative pregnancy test
• Fertile patients must use effective contraception
• HIV negative
• No other serious illness (e.g., serious infection requiring antibiotics)
• No immunodeficiency disease
• No psychiatric or addictive disorders that would preclude study

PRIOR CONCURRENT THERAPY:

Biologic therapy:

• No prior bone marrow or peripheral blood stem cell transplantation
• At least 4 weeks since prior immunotherapy

Chemotherapy:

• At least 4 weeks since prior chemotherapy (6 weeks for nitrosoureas)
• No concurrent chemotherapy

Endocrine therapy:

• No concurrent steroids except topical or inhaled steroids
• Concurrent noncytotoxic anticancer hormonal therapy allowed (e.g., hormones for breast or prostate cancer)

Radiotherapy:

• At least 4 weeks since prior radiotherapy

Surgery:

• At least 4 weeks since prior surgery

Other:

• At least 4 weeks since prior participation in any other clinical trial involving another investigational agent
• No concurrent antihistamines
• No concurrent non-steroidal anti-inflammatory drugs except low doses for prevention of an acute cardiovascular event or pain control
• No concurrent immunosuppressive agents
• Concurrent noncytotoxic anticancer therapy allowed