CD48 and neoplasm: The majority of GFP+ tumor cells expressed CD48 (99.3±0.7%), CD47 (89.5±6.9%) and Mac1 (74.4±14.7%), while expression of Gr1 (4.73±2.65%), B220 (1.35±1.52%), CD4 (18.6±16.8%), and Ter119 (3.13±1.6%, Fig. 1E) was low or absent.