SRY-box transcription factor 3 (SOX3)

SRY-box transcription factor 3 (SOX3) is a member of the SOX (SRY-related HMG-box) family of transcription factors specialized in regulating embryonic development and cell fate specification[1][3][5]. SOX3 is critical for neural and pituitary development and is one of the earliest markers of neural progenitors, with expression tightly regulated by specific promoter and epigenetic mechanisms[3][4]. Pathogenic changes in the SOX3 gene—including mutations, duplications, or altered expression—are linked to X-linked hypopituitarism, cognitive disability, sex development disorders, craniofacial and neural tube defects, and some cardiac and limb malformations[1][3][5]. SOX3 is also implicated in oncogenesis, where overexpression promotes proliferation, invasion, and oncogenic transformation in several tumor types[2][3]. Despite its biological importance, no approved drugs are documented to target SOX3 directly, nor established mechanisms of drug action or biomarkers for patient stratification have been reported.

Other names

Transcription factor SOX-3GHDXMRGHPHPPHPXSOXBSRY (sex determining region Y)-box 3SRY-box 3