Exosomal microRNA‑210 is a potentially non‑invasive biomarker for the diagnosis and prognosis of glioma

  • Authors:
    • Fengming Lan
    • Xiao Yue
    • Tingyi Xia
  • View Affiliations

  • Published online on: January 7, 2020     https://doi.org/10.3892/ol.2020.11249
  • Pages: 1967-1974
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Abstract

MicroRNAs (miRs) transferred by exosomes can function as non‑invasive potential biomarkers for the diagnosis and prognosis in various types of cancer. The present study examined the diagnostic and prognostic value of serum exosomal‑(exo‑)miR‑210 levels in association with hypoxic conditions in patients with glioma. Serum levels of exo‑miR‑210 were determined by quantitative PCR in samples obtained from patients with glioma. Patients were divided into low‑and high‑expression exo‑miR‑210 groups according to the median expression value. Statistical analyses were conducted to examine the potential value of exo‑miR‑210 in predicting the diagnosis and prognosis of patients with glioma. A significant increase in serum exo‑miR‑210 levels was observed in patients with glioma compared with healthy controls. Additionally, the expression levels of exo‑miR‑210 were increased with ascending pathological grades. Furthermore, expression levels of miR‑210 in serum exosomes from patients with glioblastoma were markedly decreased following surgery and upregulated once more at the recurrences of primary tumors, indicating that exo‑miR‑210 could reflect alterations in malignant glioma loads. In addition, Kaplan‑Meier analysis was performed to analyze overall survival (OS) time. Patients with malignant glioma with high exo‑miR‑210 expression exhibited a poorer OS compared with patients with low expression. Importantly, univariate and multivariate Cox regression analysis revealed that the expression levels of exo‑miR‑210 in glioma serum samples were independently associated with OS. Finally, increased serum exo‑miR‑210 expression was positively associated with high levels of hypoxia‑inducible factor 1a and reflected hypoxia in patients with glioma. In conclusion, serum levels of exo‑miR‑210 may serve as a diagnostic, prognostic and hypoxic biomarker to reflect glioma status and hypoxic signatures.

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March 2020
Volume 19 Issue 3

Print ISSN: 1792-1074
Online ISSN:1792-1082

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APA
Lan, F., Yue, X., & Xia, T. (2020). Exosomal microRNA‑210 is a potentially non‑invasive biomarker for the diagnosis and prognosis of glioma. Oncology Letters, 19, 1967-1974. https://doi.org/10.3892/ol.2020.11249
MLA
Lan, F., Yue, X., Xia, T."Exosomal microRNA‑210 is a potentially non‑invasive biomarker for the diagnosis and prognosis of glioma". Oncology Letters 19.3 (2020): 1967-1974.
Chicago
Lan, F., Yue, X., Xia, T."Exosomal microRNA‑210 is a potentially non‑invasive biomarker for the diagnosis and prognosis of glioma". Oncology Letters 19, no. 3 (2020): 1967-1974. https://doi.org/10.3892/ol.2020.11249