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MicroRNAs as a novel class of diagnostic biomarkers for the detection of osteosarcoma: a meta-analysis

Authors Liu H, Li P, Chen L, Jian C, Li ZH, Yu AX

Received 14 June 2017

Accepted for publication 17 August 2017

Published 1 November 2017 Volume 2017:10 Pages 5229—5236


Checked for plagiarism Yes

Review by Single-blind

Peer reviewers approved by Dr Akshita Wason

Peer reviewer comments 2

Editor who approved publication: Dr Jianmin Xu

Hong Liu,1 Ping Li,2 Liang Chen,1 Chao Jian,1 Zonghuan Li,1 Aixi Yu1

1Department of Orthopedics, Zhongnan Hospital of Wuhan University, Wuhan, China; 2Department of Surgery, Experimental Surgery and Regenerative Medicine, Ludwig-Maximilians University, München, Germany

Abstract: MicroRNAs (miRNAs) have been considered as promising diagnostic biomarkers for many diseases, especially for cancers. Numerous studies have reported the value of miRNAs in the diagnosis of osteosarcoma (OS), but the results vary greatly across different studies. Therefore, we conducted this meta-analysis to assess the prospective diagnostic value of miRNAs in diagnosing OS. All relevant articles from prior to July 28, 2017 were selected from PubMed, EMBASE, Web of Science, Cochrane Library, Chinese National Knowledge Infrastructure, and Wan-fang databases. The Quality Assessment of Diagnostic Accuracy Studies-2 (QUADAS-2) was performed to assess the quality of each article. A random-effects model was used to pool the sensitivity and specificity of the positive likelihood ratio (PLR), negative likelihood ratio (NLR) and, diagnostic odds ratio (DOR) together with the area under the curve (AUC) to evaluate diagnostic values. Seventeen studies comprising 2,214 OS patients and 1,534 healthy humans were included in our meta-analysis. The pooled estimations indicated that the miRNAs had a high accuracy for diagnosing OS, with a sensitivity of 0.82, specificity of 0.88, PLR of 10.96, NLR of 0.20, DOR of 54.55, and AUC of 0.93. Twenty-five miRNAs were differentially expressed in OS, including 17 upregulated and 8 downregulated. These miRNAs were correlated with survival time, tumor size, cell differentiation, tumor node metastasis staging, metastasis, tumor/cell invasion, pathological type, and response to radiotherapy and chemotherapy. Several different miRNAs are expressed in OS, and some of them might be potential biomarkers for the early diagnosis of OS.

Keywords: osteosarcoma, miRNAs, diagnosis, biomarker, meta-analysis

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