IFNG and neoplasm: To evaluate the dynamic expression in vivo of the transgene from the recombinant human IFNγ adenovirus, we used ELISA to test the levels of IFNγ in samples collected from tumor, heart, liver, spleen, lung, kidney, brain, and blood on days 1, 2, 3, 5, 7, 14, and 21 post-injection of Ad-IFNγ.