Gunther Zupanc Professor of Biology g.zupanc@northeastern.edu 617.373.2260 Expertise behavioral neurobiology, Comparative Neurobiology, Developmental Neurobiology, regenerative biology Gunther Zupanc for Northeastern Global News Northeastern researchers may have discovered why some tumors grow back aggressively after radiation, chemotherapy Northeastern researchers may have discovered why some tumors grow back aggressively after radiation, chemotherapy Using computer modeling, Northeastern professors may have figured out why some cancer tumors respond to treatment by growing faster.