In this application note, we begin by examining the interactions between t-cells, dendritic cells, and macrophages (case study 1). We then image t-cells responses to cancer cells (case study 2) and the interactions that occur between t-cells and macrophages (case study 3). We show Nanolive imaging can be used to monitor the response of cancer cells to promising antibody drug conjugate (ADCs) products (case study 4) and novel bispecific antibodies (case studies 5 and 6). Finally, we finish with an example of a drug screen where we describe the phenotypic response of living cells to various kinase inhibitors that have shown promise as anti-cancer treatments (case study 7).