FOXM1 and neoplasm: Wnt3a increases the level of forkhead box M1 (FoxM1), which binds directly to β-catenin, enhancing β-catenin nuclear localization and transcriptional activity in tumor cells [75], and increases prostaglandin E2 (PGE2) levels through very early 15-hydroxyprostaglandin dehydrogenase (15-PGDH) suppression to promote colorectal tumorigenesis [76].