Analysis of the androgen receptor-regulated lncRNA landscape identifies a role for ARLNC1 in prostate cancer progression

Nat Genet. 2018 Jun;50(6):814-824. doi: 10.1038/s41588-018-0120-1. Epub 2018 May 28.

Abstract

The androgen receptor (AR) plays a critical role in the development of the normal prostate as well as prostate cancer. Using an integrative transcriptomic analysis of prostate cancer cell lines and tissues, we identified ARLNC1 (AR-regulated long noncoding RNA 1) as an important long noncoding RNA that is strongly associated with AR signaling in prostate cancer progression. Not only was ARLNC1 induced by the AR protein, but ARLNC1 stabilized the AR transcript via RNA-RNA interaction. ARLNC1 knockdown suppressed AR expression, global AR signaling and prostate cancer growth in vitro and in vivo. Taken together, these data support a role for ARLNC1 in maintaining a positive feedback loop that potentiates AR signaling during prostate cancer progression and identify ARLNC1 as a novel therapeutic target.

Publication types

  • Research Support, N.I.H., Extramural
  • Research Support, Non-U.S. Gov't
  • Research Support, U.S. Gov't, Non-P.H.S.

MeSH terms

  • Androgens / genetics
  • Androgens / metabolism
  • Cell Line, Tumor
  • Disease Progression
  • Gene Expression Regulation, Neoplastic
  • Humans
  • Male
  • Prostate / physiology
  • Prostatic Neoplasms / genetics*
  • Prostatic Neoplasms / metabolism
  • Prostatic Neoplasms / pathology
  • RNA, Long Noncoding / genetics*
  • RNA, Long Noncoding / metabolism
  • Receptors, Androgen / genetics*
  • Receptors, Androgen / metabolism
  • Signal Transduction

Substances

  • AR protein, human
  • Androgens
  • RNA, Long Noncoding
  • Receptors, Androgen