Epigenetic down-regulation of SOX2 is an independent poor prognostic factor for hypopharyngeal cancers.
Mehmet Özgür AvinçsalNaoe JimboKohei FujikuraHirotaka ShinomiyaNaoki OtsukiKoichi MorimotoTatsuya FurukawaNaruhiko MoritaRitsuko MaeharaTomoo ItohKen-Ichi NibuYoh ZenPublished in: Histopathology (2018)
Similarly to oesophageal cancers, a small subset (8%) of HPSCCs characteristically almost completely lacking SOX2 expression appeared to be aggressive neoplasms with high recurrence rates. Promoter hypermethylation was determined to be a major mechanism underlying epigenetic SOX2 silencing.