Fig. 3.
Induction of tumor necrosis following intratumoral injection with AdNK4.
BALB/c mice with 8-day established subcutaneous Colon-26 tumors were treated with intratumoral injections of 109 pfu of AdNK4 (A), AdNull (B), or PBS alone (no transduction, C). Tumors were resected 3 days after injection, and frozen tumor sections were stained with H&E. Original magnification × 40.