Alternatively, the authors could accomplish tumor imaging and gene therapy at the same time to treat the cancer by using the targeted liposome to carry a triple fusion plasmid, involving gene expression cassettes for red fluorescence protein (RFP), renilla luciferase (Rluc), and a truncated herpes simplex virus thymidine kinase (HSV-TTK) gene. The gene discussed is TTK; the disease is neoplasm.