Forkhead box protein 3 (Foxp3) is a member of the forkhead/winged helix family of transcription factors.23 However, the functions of Foxp3 on different cancer are controversial.24, 25, 26 Our previous research found that ectopic tumoral Foxp3 can promote gastric cancer proliferation, migration and invasion.27 Therefore, it is necessary to verify whether Foxp3 is involved in miR‐664a‐3p/MOB1A axis. This evidence concerns the gene FOXP3 and gastric cancer.