Figure 6
Histological and immunohistochemical analysis of mouse tissue. A: Lung section from untreated tumor-bearing animal. Hematoxylin/eosin staining, original magnification × 25. B: Detection of EGFP-expressing tumor cells in lung of untreated animal. Immunohistochemical reaction with anti-EGFP polyclonal antibody, original magnification × 200, visualization with 3,3′-diaminobenzidine. C: Lung section of animal treated with combined GDEPT. Hematoxylin/eosin staining, original magnification × 25. D: No EGFP detection in lung of double treated animal. Immunohistochemical reaction with anti-EGFP polyclonal antibody. Original magnification × 200, visualization with 3,3′-diaminobenzidine.