FOXO1 and gastrointestinal stromal tumor: With the help of a Oncomine software (Life Technologies, Thermo Fisher Scientific, Waltham, MA, USA), we analyzed the published gene expression data of 181 tumors including 16 types of human bone and soft tissue sarcomas.26 We found that expression of FOXO1 was very low in gastrointestinal stromal tumor and OS compared with other sarcomas (Supplementary Figures 1 and 3: types of sarcomas with only one specimen were not analyzed).