Figure 6

Heterotopic tumors treated by H19-DTA-P4-DTA. Heterotopic bladder tumors treated with H19-DTA-P4-DTA vector (black) or with H19-Luc-P4-Luc control vector (white) were excised and the ex-vivo tumors volume were measured (A) and weighted (B). C-D: Necrosis of heterotopic tumors treated with H19-DTA-P4-DTA: Hematoxylin Eosin (HE) staining (×10) of representative sections of tumors treated with H19-Luc-P4-Luc (C), or with H19-DTA-P4-DTA (D). The necrotic areas are indicated by arrows (D). Inserts are macroscopic photographs of the heterotopic tumors.