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LncRNA PCAT6 Regulated by YY1 Accelerates the Progression of Glioblastoma via miR-513/IGF2BP1

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Abstract

Glioblastoma is one of the most frequent and aggressive primary tumor of glial brain tumors. Long non-coding RNA Prostate cancer-associated ncRNA transcript 6 (PCAT6) has been identified to influence the progression of many cancers, but its expression and functions in glioblastoma remain unclear. In this study, we intended to investigate the expression, functions and the corresponding mechanisms of PCAT6 in glioblastoma. We observed that PCAT6 expression was upregulated in glioblastoma tissues and cell lines and its high expression was due to the transcriptional activation by Yin Yang 1. miR-513 was a target of PCAT6 and Insulin like growth factor 2 mRNA binding protein 1 (IGF2BP1) was a target of miR-513. Hence, PCAT6 upregulated IGF2BP1 expression via miR-513 in a competing endogenous RNAs manner. PCAT6 and IGF2BP1 functioned as oncogenes while miR-513 acted as a tumor suppressor gene in glioblastoma. PCAT6 and miR-513 modulated the proliferation and survival of glioblastoma cells via AKT signaling by mediating IGF2BP1. IGF2BP1 raised the expression of PCAT6 by increasing its stability. In conclusion, our results indicate that PCAT6/miR-513/IGF2BP1 positive feedback loop plays a crucial role in facilitating glioblastoma progression.

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Availability of Data and Material

The data and materials used in the current study are available from the corresponding author on reasonable request.

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Funding

This work was supported by grants from Training foundation for Excellent Young Talents (2019-KY-005).

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Authors and Affiliations

  1. Department of Neurosurgery, The Huangdao District People’s Hospital, No. 287 Renmin Road, Qingdao, 266400, Shandong, China

    Peng Liu, Peng Zhao, Bing Li & Kun Wang

  2. Department of Neurosurgery, The Huangdao District Second People’s Hospital, Qingdao, Shandong, China

    Dianxiang Xu

Authors
  1. Peng Liu
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  2. Peng Zhao
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  3. Bing Li
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  4. Dianxiang Xu
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  5. Kun Wang
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Contributions

All authors contributed to the study conception and design. Experiments were performed by Peng Liu, Peng Zhao and Kun Wang. Samples collection and data analysis were performed by Peng Liu, Bing Li and Dianxiang Xu. The first draft of the manuscript was written by Kun Wang and all authors commented on previous versions of the manuscript. All authors read and approved the final manuscript.

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Correspondence to Kun Wang.

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This research was approved by the ethic committee of The Huangdao District People's Hospital.

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Liu, P., Zhao, P., Li, B. et al. LncRNA PCAT6 Regulated by YY1 Accelerates the Progression of Glioblastoma via miR-513/IGF2BP1. Neurochem Res 45, 2894–2902 (2020). https://doi.org/10.1007/s11064-020-03138-4

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  • DOI: https://doi.org/10.1007/s11064-020-03138-4

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