Patients receive adenovirus-p53 transduced dendritic cell vaccine intradermally (ID) in weeks 1, 3, 5, and 10, and then every 3 weeks for 6 total doses. Patients also receive 1-methyl-d-tryptophan orally (PO) once daily (QD) on days 1-21. Treatment with 1-methyl-d-tryptophan repeats every 28 days (patients with stable disease) for up to 12 courses in the absence of disease progression or unacceptable toxicity.