Upregulated RAB27A, SYTL2, and VWF expression was confirmed in two human ASPS cell lines, ASPS-KY and ASPS1, in comparison with two Ewing sarcomas, two synovial sarcomas, and one osteosarcoma cell line (Supplementary Fig. 4h). This evidence concerns the gene SYTL2 and osteosarcoma.