TNF and neoplasm: Although as shown in Fig. 4c, the tumor burden was markedly increased at day 30 compared to day 11, there were no significant differences in TNFα and IFNγ levels in the pleural lavage obtained from mice at day 11 (before the initiation of the treatment) or day 30 that were treated with saline or control adenovirus (Fig. 8a,b).