Fig. 1
From: Chimeric antigen receptor natural killer (CAR-NK) cell design and engineering for cancer therapy
CAR-NK cells: growing interest and diversity of tumor targets. a Bar graph showing the number of manuscripts reporting experimental data on human CAR-NK cells until December 2020. Stacked bars show the number of publications per year with CAR-NK cells derived from cell lines (black) and primary NK cells (pink). b Tumor targets for cell line-derived (black) and primary NK cell-derived (pink) CAR-NK cells. Each symbol represents one study with experimental data, with blood drops for hematological malignancies and rectangles for solid malignancies. Numbers per tumor type are shown, with annotated boxes highlighting the most important tumor targets