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The Use of Three Long Non-Coding RNAs as Potential Prognostic Indicators of Astrocytoma

Author

Listed:
  • Feng Zhi
  • Qiang Wang
  • Lian Xue
  • Naiyuan Shao
  • Rong Wang
  • Danni Deng
  • Suinuan Wang
  • Xiwei Xia
  • Yilin Yang

Abstract

Long noncoding RNAs (lncRNAs) are pervasively transcribed and play a key role in tumorigenesis. The aim of the study was to determine the lncRNA expression profile in astrocytomas and to assess its potential clinical value. We performed a three-step analysis to establish the lncRNA profile for astrocytoma: a) the lncRNA expression was examined on 3 astrocytomas as well as 3 NATs (normal adjacent tissues) using the lncRNA microarray; b) the top-hits were validated in 40 astrocytomas (WHO grade II-IV) by quantitative real time-PCR (qRT-PCR); c) the hits with significant differences were re-evaluated using qRT-PCR in 90 astrocytomas. Finally, 7 lncRNAs were found to have a significantly different expression profile in astrocytoma samples compared to the NAT samples. Unsupervised clustering analysis further revealed the potential of the 7-lncRNA profile to differentiate between tumors and NAT samples. The upregulation of ENST00000545440 and NR_002809 was associated with advanced clinical stages of astrocytoma. Using Kaplan-Meier survival analysis, we showed that the low expression of BC002811 or XLOC_010967, or the high expression of NR_002809 was significantly associated with poor patient survival. Moreover, Cox proportional hazard regression analysis revealed that this prognostic impact was independent of other clinicopathological factors. Our results indicate that the lncRNA profile may be a potential prognostic biomarker for the prediction of post-surgical outcomes.

Suggested Citation

  • Feng Zhi & Qiang Wang & Lian Xue & Naiyuan Shao & Rong Wang & Danni Deng & Suinuan Wang & Xiwei Xia & Yilin Yang, 2015. "The Use of Three Long Non-Coding RNAs as Potential Prognostic Indicators of Astrocytoma," PLOS ONE, Public Library of Science, vol. 10(8), pages 1-14, August.
    • Handle: RePEc:plo:pone00:0135242
    DOI: 10.1371/journal.pone.0135242
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    1. Rajnish A. Gupta & Nilay Shah & Kevin C. Wang & Jeewon Kim & Hugo M. Horlings & David J. Wong & Miao-Chih Tsai & Tiffany Hung & Pedram Argani & John L. Rinn & Yulei Wang & Pius Brzoska & Benjamin Kong, 2010. "Long non-coding RNA HOTAIR reprograms chromatin state to promote cancer metastasis," Nature, Nature, vol. 464(7291), pages 1071-1076, April.
    2. Mitchell Guttman & Julie Donaghey & Bryce W. Carey & Manuel Garber & Jennifer K. Grenier & Glen Munson & Geneva Young & Anne Bergstrom Lucas & Robert Ach & Laurakay Bruhn & Xiaoping Yang & Ido Amit & , 2011. "lincRNAs act in the circuitry controlling pluripotency and differentiation," Nature, Nature, vol. 477(7364), pages 295-300, September.
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