These fluorescent images show bone metastases (green) that were treated with chemotherapy alone (left) or in combination with antibody 15D11 (right). When combined with the antibody developed by Princeton University's Yibin Kang, chemotherapy becomes much more effective against cancer tumors in bone. Cancer cells are green, and osteoblasts (bone rebuilders) are red. Nuclei of normal and cancer cells were shown in blue. The scale bar in the bottom right represents 40 millimeters.