 OUTLINE: Patients undergo blood collection for the preparation of the autologous dendritic cell DC vaccine. Immature DCs are transduced with latent membrane protein-1 LMP-1 and latent membrane protein-2 LMP-2 using the adenoviral vector 5F35. Beginning 1 week after blood collection, patients receive vaccination with autologous DCs transduced with AD5F35-LMP-1LMP-2 intradermally every 2 weeks for a total of 5 vaccinations. Patients also receive celecoxib twice a day beginning 1 week before the first vaccination and continuing for up to 6 weeks after completion of the last vaccination. 