Forkhead box protein F2 (FOXF2)

Forkhead box protein F2 (FOXF2) is a mesenchymal transcription factor belonging to the forkhead box (FOX) family, characterized by a conserved forkhead DNA-binding domain[1][3][4]. It is essential in embryonic development, organogenesis, and maintenance of tissue homeostasis, particularly in craniofacial development, blood–brain barrier integrity, respiratory and gastrointestinal tract formation, and extracellular matrix homeostasis[1][2]. In cancer, FOXF2 displays context-dependent roles that are sometimes diametrically opposed: in some tumor types (e.g., luminal-type breast cancer, colorectal, cervical, ovarian cancers), its loss leads to increased proliferation and invasion, and is linked to poor prognosis; in others (e.g., basal-like breast cancer, pancreatic cancer), overexpression drives epithelial-mesenchymal transition and metastasis[1][2][4]. FOXF2 expression is regulated by several mechanisms, including microRNAs and promoter methylation. It can act through key pathways like Wnt/β-catenin, BMP/SMAD, and VEGF-C/VEGFR3, affecting cell cycle, EMT, and invasion[1][4]. Its dual roles in tumorigenesis, developmental biology, and tissue remodeling highlight its potential as both a therapeutic target and a biomarker[1][2][4]. No approved drugs or targeted therapies currently act directly on FOXF2.

Other names

FKHL6FREAC2FREAC-2Forkhead-related activator 2Forkhead-related protein FKHL6Forkhead-related transcription factor 2forkhead-like 6