INO80 governs super-enhancer-mediated oncogenic transcription and tumor growth in melanoma [RNA-seq]

ABSTRACT: Super-enhancers (SEs) are large genomic regions with high density of enhancer marks. In cancer, SEs are found near oncogenes and dictate cancer gene expression. However, how oncogenic SEs are regulated remains poorly understood. Here, we show that INO80, a chromatin remodeling complex, is required for SE-mediated oncogenic transcription and tumor growth in melanoma. The expression of Ino80, the SWI/SNF ATPase, is elevated in melanoma cells and patient melanomas compared to normal melanocytes and benign nevi. Furthermore, Ino80 silencing selectively inhibits melanoma cell proliferation, anchorage-independent growth, as well as tumorigenesis and tumor maintenance in mouse xenografts. Mechanistically, Ino80 occupies more than 90% of SEs, and its occupancy is dependent on transcription factors

ORGANISM(S): Homo sapiens

SUBMITTER: Li Wang 

PROVIDER: E-GEOD-82333 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress