Figure 5From: In vitro and in vivo double-enhanced suicide gene therapy mediated by generation 5 polyamidoamine dendrimers for PC-3 cell lineHistological analysis of tumor specimen. Hematoxylin and eosin staining (magnification × 100) in excised tumor tissues were conducted after treatment with different mixtures by intratumoral injection. Cell necrosis and hemorrhage with leukocyte infiltration in the tumors were observed from Group I to IV. No obvious pathological changes were shown from Group V to VIII.Back to article page