A research team at Stanford University led by Drs. Kathleen Sakamoto and Irv Weissman has received a $1.37 million grant from CureSearch titled “Development of CD47 Monoclonal Antibody Therapy for Pediatric Tumors.”
In a healthy person, when the body makes abnormal cells or cells become old, the body’s scavenger cells, called macrophages, eliminate them in a process defined as programmed cell removal. When a person has cancer, the abnormal cells are not eliminated by the macrophages. Researchers under the leadership of Dr. Irv Weissman discovered that pediatric brain tumor, leukemia, bone tumor and neuroblastoma cells overproduce a cell surface protein known as CD47. The overproduction of CD47 on cancer cells tells macrophages “don’t eat me,” allowing the disease to progress.