
PHILADELPHIA-Intranasal delivery of an adenoviral vector containing the murine interleukin-12 (IL-12) gene has been shown to inhibit osteosarcoma lung metastases in mice. IL-12 is a molecule that activates the immune system and has recently been shown to have antiangiogenic activity. “Our hypothesis is that IL-12 interfered with tumor angiogenesis,” Laura L. Worth, MD, PhD, said at the annual meeting of the American Association for Cancer Research.

