Abstract:
:The androgen receptor (AR) plays a central role in establishing an oncogenic cascade that drives prostate cancer progression. Some prostate cancers escape androgen dependence and are often associated with an aggressive phenotype. The oestrogen receptor alpha (ERα) is expressed in prostate cancers, independent of AR status. However, the role of ERα remains elusive. Using a combination of chromatin immunoprecipitation (ChIP) and RNA-sequencing data, we identified an ERα-specific non-coding transcriptome signature. Among putatively ERα-regulated intergenic long non-coding RNAs (lncRNAs), we identified nuclear enriched abundant transcript 1 (NEAT1) as the most significantly overexpressed lncRNA in prostate cancer. Analysis of two large clinical cohorts also revealed that NEAT1 expression is associated with prostate cancer progression. Prostate cancer cells expressing high levels of NEAT1 were recalcitrant to androgen or AR antagonists. Finally, we provide evidence that NEAT1 drives oncogenic growth by altering the epigenetic landscape of target gene promoters to favour transcription.
journal_name
Nat Communjournal_title
Nature communicationsauthors
Chakravarty D,Sboner A,Nair SS,Giannopoulou E,Li R,Hennig S,Mosquera JM,Pauwels J,Park K,Kossai M,MacDonald TY,Fontugne J,Erho N,Vergara IA,Ghadessi M,Davicioni E,Jenkins RB,Palanisamy N,Chen Z,Nakagawa S,Hirose Tdoi
10.1038/ncomms6383subject
Has Abstractpub_date
2014-11-21 00:00:00pages
5383issn
2041-1723pii
ncomms6383journal_volume
5pub_type
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