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Tumor Biology

, Volume 36, Issue 6, pp 4461–4466 | Cite as

Decreased expression of microRNA-107 predicts poorer prognosis in glioma

  • Yuchen Ji
  • Yujun Wei
  • Jianyong Wang
  • Qiang Ao
  • Kai Gong
  • Huancong Zuo
Research Article

Abstract

The expression level of microRNA-107 (miR-107) has been proved to be decreased in many human malignant cancers. Especially in glioma, accumulating evidence indicates that miR-107 may play important parts in cell proliferation, apoptosis, and invasion in glioma. However, its clinical significance in glioma has not been investigated. This study aims at investigating the relationship between miR-107 expression level and clinical significance and analyzing its value of miR-107 in valuing the prognosis of glioma patients. Quantitative real-time polymerase chain reaction (qRT-PCR) was used to measure the expression of miR-107 in 80 glioma and 17 normal brain tissues. The results showed the miR-107 expression level in glioma tissues was significantly lower than those in normal brain tissues (p < 0.001). The decreased expression of miR-107 in glioma was positively associated with high WHO grade (p < 0.001), low Karnofsky performance score (KPS) (p < 0.001), and large tumor size (p < 0.001) and had a significant impact on overall survival (OS) (p < 0.001) and progression-free survival (PFS) (p < 0.001) according to Kaplan–Meier survival with log-rank test. Finally, Cox regression analyses showed that low miR-107 expression (p < 0.001) might be an independent prognostic parameter to predict poor prognosis. In conclusion, it is the first data to prove that expression level of miR-107 may be a novel and valuable prognostic factor in glioma.

Keywords

Glioma microRNA-107 Overall survival Progression-free survival 

Notes

Ethical statement

All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.

This article does not contain any studies with animals performed by any of the authors.

Additional informed consent was obtained from all individual participants for whom identifying information is included in this article.

Conflicts of interest

None

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Copyright information

© International Society of Oncology and BioMarkers (ISOBM) 2015

Authors and Affiliations

  • Yuchen Ji
    • 1
    • 2
  • Yujun Wei
    • 1
    • 2
  • Jianyong Wang
    • 3
  • Qiang Ao
    • 1
    • 2
  • Kai Gong
    • 1
    • 2
  • Huancong Zuo
    • 1
    • 2
  1. 1.Medical CenterTsinghua UniversityHaidian DistrictChina
  2. 2.Department of NeurosurgeryYuquan Hospital ,Tsinghua UniversityBeijingChina
  3. 3.School of clinical MedicineInner Mongolia University for the NationalitiesTongliaoChina

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