SOX2 and p63 occupancy in human squamous carcinoma cell lines and embryonic stem cells.

ABSTRACT: SOX2 is a transcription factor essential for pluripotent stem cells, and development and maintenance of squamous epithelium. We previously reported SOX2 an oncogene subject to highly recurrent genomic amplification in squamous cell carcinomas (SCCs). Here we demonstrate in SCCs that SOX2 interacts with another master squamous transcription factor p63, and through ChIP-seq show that genomic occupancy of SOX2 overlaps with that of p63 at a large number of loci and that they cooperatively regulate gene expression including ETV4, which we find essential for SOX2-amplified SCC cell survival. Furthermore, SOX2 binds to distinct genomic loci in SCCs than in embryonic stem cells and the SOX2-p63 coordinate binding is unique to SCC. In addition, a subset of SOX2 genomic binding sites in SCC that

ORGANISM(S): Homo sapiens

SUBMITTER: Shouyong Peng 

PROVIDER: E-GEOD-46837 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress