Although there were numerous instances of nucleolin-expressing cells in the tumor cryosections of both groups, more co-localization of Rh fluorescent signal with nucleolin-expressing cells were found in the NucA-PTX-Rh-treated mice as compared to the CRO-PTX-Rh treated mice at 4 h after injection (Fig. 6c, d). The gene discussed is NUCLEOLIN; the disease is neoplasm.