Figure 1From: Targeted gene therapy of nasopharyngeal cancer in vitro and in vivo by enhanced thymidine kinase expression driven by human TERT promoter and CMV enhancerTK gene expression detected with fluorescent microscopy. Shown here are the cells 24 hours after transfection under fluorescent microscope (×100). (a) NPC 5-8F cells transfected with pGL3-basic-hTERTp-TK-EGFP-CMV; (b) MCF-7 cells transfected with pGL3-basic-hTERTp-TK-EGFP-CMV; (c) NPC 5-8F cells transfected with pGL3-basic-TRETp-TK-EGFP; (d) ECV cells transfected with pGL3-basic-hTERTp-TK- EGFP.Back to article page