Transcriptomics

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A prostate cancer risk element functions as a repressive loop that regulates HOXA13


ABSTRACT: Prostate cancer (PCa) is the leading cancer among men in the United States, with genetic factors contributing to ~42% of the susceptibility to PCa. To understand the causal genetic factors associated with PCa, we have focused on a PCa risk region located at 7p15.2. We performed Hi-C analysis and demonstrated that this region has long range interactions with the HOXA locus, located ~873 kb away. Using the CRISPR/Cas9 system, we deleted a 4 kb region encompassing several prostate cancer risk-associated SNPs and performed RNA-seq to investigate transcriptomic changes in RWPE1 prostate cells lacking the regulatory element. Our results suggest that the risk element affects the expression of HOXA13 and HOTTIP, but not other genes in the HOXA locus, via a repressive loop. Forced expression of HOXA13 was also performed to gain insight into the mechanisms by which this risk element affects prostate cancer risk.

ORGANISM(S): Homo sapiens

PROVIDER: GSE98898 | GEO | 2017/11/01

SECONDARY ACCESSION(S): PRJNA386902

REPOSITORIES: GEO

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