PTPRC and neoplasm: Specifically, the tumor epithelium (EpCAM), stromal compartment (FAP), immune cells (CD45) and proliferation (Ki67) were analyzed in baseline (Fig. 2B–E, Suppl Fig. S2B–E) and 48 h after culturing (Fig. 2G–J, Suppl Fig. S2G–J; representative images from two cases are displayed).