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Tumor Biology

, Volume 37, Issue 5, pp 5769–5773 | Cite as

RETRACTED ARTICLE: Downregulation of microRNA-217 and microRNA-646 acts as potential predictor biomarkers in progression, metastasis, and unfavorable prognosis of human osteosarcoma

  • Afshin Taheri Azam
  • Reza Bahador
  • Hamid Hesarikia
  • Mohammadreza Shakeri
  • Ali Yeganeh
Original Article

Abstract

Despite the progress in therapeutic targets, it remains dissatisfactory for most osteosarcoma patients with metastasis or recurrence osteosarcoma. Therefore, it is required to determine the involved mechanisms of osteosarcoma. The aim of this study was to investigate the expression level of MiR-217 and miR-646 and also their association with clinicopathological features in patients with osteosarcoma. Total RNA was purified from patients with osteosarcoma and noncancerous bone tissues, and then quantitative real-time PCR was applied to evaluate the expression level of microRNAs. Our result suggested that miR-217 expression was remarkably deceased in osteosarcoma bone tissue when compared with noncancerous bone tissues (mean ± SD 5.32 ± 1.231, 2.01 ± 0.78; P = 0.024) and miR-646 expression decreased in osteosarcoma bone tissue in comparison with normal tissues (mean ± SD 4.56 ± 1.45, 1.76 ± 1.24; P = 0.041). Our findings indicated that decreased expression of MiR-217 and miR-646 was strongly correlated with high tumor, node, and metastasis (TNM) stage (P = 0.015, P = 0.002) and large cancer diameter (P = 0.041, P = 0.053). Kaplan-Meier survival and log-rank analysis indicated that shorter overall survival was strongly linked to decreased expression of miR-217 and miR-646 (log-rank test P = 0.034, P = 0.026). In terms of miR-217, multivariate Cox proportional hazards model analysis has showed that reduction of miR-217 expression (P = 0.001), TNM stage (P = 0.046), and lymph node metastasis (P = 0.006) were independently linked to a short-time survival of patients. In terms of miR-646, low expression of miR-646 (P = 0.021), TNM stage (P = 0.052), and tumor size (P = 0.043) were independently associated with poor survival of patients as prognostic factors. Our findings suggested that downregulation of MiR-217 and miR-646 was associated with progression of osteosarcoma. MiR-217 and miR-646 may play a key role in suppression of tumor in osteosarcoma and would be applied as a novel therapeutic agent.

Keywords

Osteosarcoma MiRNAs Pathology Metastasis Patient 

Notes

Acknowledgments

We thank Dr. Heydari, Dr. Mousavi and Dr. Alizadeh for their technical assistance in this article.

Conflicts of interest

None

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Copyright information

© International Society of Oncology and BioMarkers (ISOBM) 2015

Authors and Affiliations

  • Afshin Taheri Azam
    • 1
  • Reza Bahador
    • 2
  • Hamid Hesarikia
    • 3
  • Mohammadreza Shakeri
    • 2
  • Ali Yeganeh
    • 4
  1. 1.Department of Orthopedics SurgeryIslamic Azad UniversityTehranIran
  2. 2.Department of Orthopaedic and Trauma SurgeryBirjand University of Medical SciencesBirjandIran
  3. 3.Trauma Research Center, Department of Orthopedics, Baqiyatallah HospitalBaqiyatallah University of Medical SciencesTehranIran
  4. 4.Department of Orthopedic Surgery, Rasoul Akram HospitalIran University of Medical SciencesTehranIran

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