Dr. Bin Zhang, associate professor of medicine-hematology/oncology and microbiology-immunology at Northwestern University Feinberg School of Medicine, is among a group of international scientists awarded $8 million to attack cancer from multiple perspectives. Dr. Zhang is participating in a project targeting CD73, an enzyme that is overexpressed in many different forms of the disease. Although CD73 helps produce energy in cells, it can also suppress the immune system and allow tumor cells to reproduce.