FOXO1 and pituitary gland adenoma: A study correlating methylation and gene expression identified several hub proteins associated with pituitary adenomas, including DCC, DLG5, ETS2, FOXO1, HBP1, HMGA2, PCGF3, PSME4, RBPMS, RREB1, SMAD1, SOCS1, SOX2, YAP1, and ZFHX3 [24].