Genomics

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ONECUT2 Activates Diverse Resistance Drivers of Androgen Receptor-Independent Heterogeneity in Prostate Cancer (ATAC-seq)


ABSTRACT: Androgen receptor- (AR-) indifference is a mechanism of resistance to hormonal therapy in prostate cancer (PC). Here we demonstrate that the HOX/CUT transcription factor ONECUT2 (OC2) directly activates resistance through multiple drivers associated with adenocarcinoma, stem-like and neuroendocrine (NE) variants. OC2 regulates gene expression by promoter binding, enhancement of chromatin accessibility, and formation of novel super-enhancers. Pharmacologic inhibition of OC2 suppresses lineage plasticity reprogramming induced by the AR signaling inhibitor enzalutamide. These results demonstrate that OC2 activation promotes a range of drug resistance mechanisms associated with treatment-emergent lineage variation in PC.

ORGANISM(S): Homo sapiens

PROVIDER: GSE244022 | GEO | 2023/11/21

REPOSITORIES: GEO

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