New research from UPMC Hillman Cancer Center and the University of Pittsburgh School of Medicine, led by Dr. Greg Delgoffe, shows how chemicals in the areas surrounding tumors—known as the tumor microenvironment—weaken the immune system and allow cancer to avoid attacks. These findings suggest that an existing drug could potentially shrink tumors and boost cancer immunotherapy. In this video, Dr. Delgoffe answers a few questions about these groundbreaking findings and explains the relationship b