p53-inducible long non-coding RNA PICART1 mediates cancer cell proliferation and migration

  • Authors:
    • Yu Cao
    • Minglin Lin
    • Yiwen Bu
    • Hongyan Ling
    • Yingchun He
    • Chenfei Huang
    • Yi Shen
    • Bob Song
    • Deliang Cao
  • View Affiliations

  • Published online on: March 20, 2017     https://doi.org/10.3892/ijo.2017.3918
  • Pages:1671-1682
0

Abstract

Long non-coding RNAs (lncRNAs) function in the development and progression of cancer, but only a small portion of lncRNAs have been characterized to date. A novel lncRNA transcript, 2.53 kb in length, was identified by transcriptome sequencing analysis, and was named p53-inducible cancer-associated RNA transcript 1 (PICART1). PICART1 was found to be upregulated by p53 through a p53-binding site at -1808 to -1783 bp. In breast and colorectal cancer cells and tissues, PICART1 expression was found to be decreased. Ectopic expression of PICART1 suppressed the growth, proliferation, migration, and invasion of MCF7, MDA-MB-231 and HCT116 cells whereas silencing of PICART1 stimulated cell growth and migration. In these cells, the expression of PICART1 suppressed levels of p-AKT (Thr308 and Ser473) and p-GSK3β (Ser9), and accordingly, β-catenin, cyclin D1 and c-Myc expression were decreased, while p21Waf/cip1 expression was increased. Together these data suggest that PICART1 is a novel p53-inducible tumor-suppressor lncRNA, functioning through the AKT/GSK3β/β-catenin signaling cascade.

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May 2017
Volume 50 Issue 5

Print ISSN: 1019-6439
Online ISSN:1791-2423

2016 Impact Factor: 3.079
Ranked #33/217 Oncology
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Copy and paste a formatted citation
APA
Cao, Y., Lin, M., Bu, Y., Ling, H., He, Y., Huang, C. ... Cao, D. (2017). p53-inducible long non-coding RNA PICART1 mediates cancer cell proliferation and migration . International Journal of Oncology, 50, 1671-1682. https://doi.org/10.3892/ijo.2017.3918
MLA
Cao, Y., Lin, M., Bu, Y., Ling, H., He, Y., Huang, C., Shen, Y., Song, B., Cao, D."p53-inducible long non-coding RNA PICART1 mediates cancer cell proliferation and migration ". International Journal of Oncology 50.5 (2017): 1671-1682.
Chicago
Cao, Y., Lin, M., Bu, Y., Ling, H., He, Y., Huang, C., Shen, Y., Song, B., Cao, D."p53-inducible long non-coding RNA PICART1 mediates cancer cell proliferation and migration ". International Journal of Oncology 50, no. 5 (2017): 1671-1682. https://doi.org/10.3892/ijo.2017.3918