This video shows T cells actively killing cancer cells, captured using Nanolive’s 3D Cell Explorer—a label-free, live-cell imaging technology. The study focuses on understanding how immune cells interact with tumor cells in real time, which is crucial for improving immunotherapy approaches in cancers like bladder and colon cancer. The experiment uses T cells isolated from OT-I mice, which are genetically engineered to recognize a specific antigen (OVA). These T cells were co-cultured with MC38-O