The lncRNA <i>PCAT29</i> Inhibits Oncogenic Phenotypes in Prostate Cancer

  • Rohit Malik
    1Michigan Center for Translational Pathology, University of Michigan, Ann Arbor, Michigan.
  • Lalit Patel
    1Michigan Center for Translational Pathology, University of Michigan, Ann Arbor, Michigan.
  • John R. Prensner
    1Michigan Center for Translational Pathology, University of Michigan, Ann Arbor, Michigan.
  • Yang Shi
    1Michigan Center for Translational Pathology, University of Michigan, Ann Arbor, Michigan.
  • Matthew K. Iyer
    1Michigan Center for Translational Pathology, University of Michigan, Ann Arbor, Michigan.
  • Shruthi Subramaniyan
    1Michigan Center for Translational Pathology, University of Michigan, Ann Arbor, Michigan.
  • Alexander Carley
    1Michigan Center for Translational Pathology, University of Michigan, Ann Arbor, Michigan.
  • Yashar S. Niknafs
    1Michigan Center for Translational Pathology, University of Michigan, Ann Arbor, Michigan.
  • Anirban Sahu
    1Michigan Center for Translational Pathology, University of Michigan, Ann Arbor, Michigan.
  • Sumin Han
    1Michigan Center for Translational Pathology, University of Michigan, Ann Arbor, Michigan.
  • Teng Ma
    1Michigan Center for Translational Pathology, University of Michigan, Ann Arbor, Michigan.
  • Meilan Liu
    4Department of Radiation Oncology, University of Michigan, Ann Arbor, Michigan.
  • Irfan A. Asangani
    1Michigan Center for Translational Pathology, University of Michigan, Ann Arbor, Michigan.
  • Xiaojun Jing
    1Michigan Center for Translational Pathology, University of Michigan, Ann Arbor, Michigan.
  • Xuhong Cao
    1Michigan Center for Translational Pathology, University of Michigan, Ann Arbor, Michigan.
  • Saravana M. Dhanasekaran
    1Michigan Center for Translational Pathology, University of Michigan, Ann Arbor, Michigan.
  • Dan R. Robinson
    1Michigan Center for Translational Pathology, University of Michigan, Ann Arbor, Michigan.
  • Felix Y. Feng
    1Michigan Center for Translational Pathology, University of Michigan, Ann Arbor, Michigan.
  • Arul M. Chinnaiyan
    1Michigan Center for Translational Pathology, University of Michigan, Ann Arbor, Michigan.

説明

<jats:title>Abstract</jats:title> <jats:p>Long noncoding RNAs (lncRNA) have recently been associated with the development and progression of a variety of human cancers. However, to date, the interplay between known oncogenic or tumor-suppressive events and lncRNAs has not been well described. Here, the novel lncRNA, prostate cancer–associated transcript 29 (PCAT29), is characterized along with its relationship to the androgen receptor. PCAT29 is suppressed by DHT and upregulated upon castration therapy in a prostate cancer xenograft model. PCAT29 knockdown significantly increased proliferation and migration of prostate cancer cells, whereas PCAT29 overexpression conferred the opposite effect and suppressed growth and metastases of prostate tumors in chick chorioallantoic membrane assays. Finally, in prostate cancer patient specimens, low PCAT29 expression correlated with poor prognostic outcomes. Taken together, these data expose PCAT29 as an androgen-regulated tumor suppressor in prostate cancer.</jats:p> <jats:p>Implications: This study identifies PCAT29 as the first androgen receptor–repressed lncRNA that functions as a tumor suppressor and that its loss may identify a subset of patients at higher risk for disease recurrence.</jats:p> <jats:p>Visual Overview: http://mcr.aacrjournals.org/content/early/2014/07/31/1541-7786.MCR-14-0257/F1.large.jpg. Mol Cancer Res; 12(8); 1081–7. ©2014 AACR.</jats:p>

収録刊行物

  • Molecular Cancer Research

    Molecular Cancer Research 12 (8), 1081-1087, 2014-08-14

    American Association for Cancer Research (AACR)

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