eISSN: 1896-9151
ISSN: 1734-1922
Archives of Medical Science
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SCImago Journal & Country Rank
6/2017
vol. 13
 
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abstract:
Basic research

Down-regulation of microRNA-182 and microRNA-183 predicts progression of osteosarcoma

Mohammad Reza Golbakhsh
,
Bahram Boddouhi
,
Negin Hatami
,
Peyman Karimi Goudarzi
,
Mohammadreza Shakeri
,
Emad Yahaghi
,
Afshin Taheriazam

Arch Med Sci 2017; 13, 6: 1352–1356
Online publish date: 2016/05/20
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Introduction: The aim of this study was to investigate the expression levels of microRNA-182 and microRNA-183 and their association with clinicopathological features in patients with osteosarcoma.

Material and methods: Total RNA was purified from samples and noncancerous bone tissues and then quantitative real-time polymerase chain reaction was applied to evaluate the expression levels of microRNAs, and their relationship with clinicopathological features and survival in osteosarcoma patients.

Results: Our findings showed that expression of MiR-182 was clearly lower in osteosarcoma bone tissue (mean ± SD: 2.84 ±.07) compared with noncancerous bone tissues (6.23 ±1.72, p = 0.004). On the other hand, lower expression of MiR-183 was seen in osteosarcoma bone tissue (1.43 ±0.59) when compared with normal tissues (4.36 ±2.47, p = 0.036). Decreased expression of MiR-182 was clearly correlated with advanced clinical stage (p = 0.001), metastasis or recurrence (p = 0.024), and large tumor size (p = 0.032). Decreased expression of MiR-183 was associated with advanced TNM stage (p = 0.004), and metastasis or recurrence (p = 0.002). A multivariate Cox proportional hazards model revealed that low expression of MiR-182 and MiR-183 (p = 0.02; p = 0.016), TNM stage (p = 0.04), and metastasis or recurrence (p = 0.03) were significantly associated with poor survival as independent prognostic factors.

Conclusions: These findings suggest that MiR-182 and MiR-183 may be associated with progression and metastasis of osteosarcoma.
keywords:

tumor, oncology, pathology, marker, expression

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