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MDC1-AS, an antisense long noncoding RNA, regulates cell proliferation of glioma

Hongsheng Yue1, Jie Zhu1, Shugang Xie2

  • 1Department of Neurosurgery, Ji'nan Central Hospital Affiliated to Shandong University, Ji'nan 250013, PR China.

Biomedicine & Pharmacotherapy = Biomedecine & Pharmacotherapie
|June 5, 2016
PubMed
Abstract

Insights

Mediator of DNA damage checkpoint protein 1 antisense RNA (MDC1-AS) acts as a tumor suppressor in glioma. Its downregulation correlates with glioma progression, suggesting MDC1-AS as a potential therapeutic target.

Area of Science:

  • Oncology
  • Molecular Biology
  • Genetics

Background:

  • Long noncoding RNAs (lncRNAs) are increasingly recognized as key regulators in cancer development and progression.
  • Mediator of DNA damage checkpoint protein 1 antisense RNA (MDC1-AS), a lncRNA with an uncharacterized function, is the antisense transcript of the tumor suppressor gene MDC1.

Purpose of the Study:

  • To investigate the expression patterns and functional significance of lncRNA MDC1-AS in glioma.
  • To elucidate the role of MDC1-AS in glioma cell proliferation and cell cycle regulation.

Main Methods:

  • Real-time PCR was employed to determine expression levels of MDC1-AS and MDC1 in glioma tissues and cell lines.
  • Gain- and loss-of-function studies were conducted to assess the impact of MDC1-AS on glioma cell behavior.

Main Results:

  • lncRNA MDC1-AS and MDC1 expression were significantly reduced in glioma tissues and cell lines compared to normal controls.
  • Overexpression of MDC1-AS inhibited glioma cell proliferation and cell cycle progression.
  • MDC1-AS expression positively correlated with MDC1 expression, and its inhibitory effect was dependent on MDC1 levels.

Conclusions:

  • MDC1-AS functions as a novel tumor suppressor in glioma by upregulating its antisense tumor-suppressing gene, MDC1.
  • MDC1-AS presents a promising potential biomarker and therapeutic target for glioma treatment.
Keywords:
Cell proliferationGliomaLong non-coding RNA MDC1-ASMDC1

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