Pooling-analysis for diagnostic and prognostic value of MiRNA-100 in various cancers
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Zhe Dou1,*, Shuai Lin1,*, Cong Dai1,*, Ye Lu2, Tian Tian1, Meng Wang1, Xinghan Liu1, Yi Zheng1, Peng Xu1, Shanli Li1, Qianwen Sheng1, Yujiao Deng1 and Zhijun Dai1
1Department of Oncology, Second Affiliated Hospital of Xi’an Jiaotong University, Xi’an 710004, China
2Department of Student Affairs, Second Affiliated Hospital of Xi’an Jiaotong University, Xi’an 710004, China
*ZD, SL and CD have contributed equally to this work
Keywords: miRNA-100, diagnosis, prognosis, meta-analysis
Received: December 14, 2016 Accepted: May 15, 2017 Published: June 27, 2017
Many studies manifested miRNA-100 was deregulated in various cancers, which indicated that miRNA-100 might be a potential biomarker of cancer diagnosis and prognosis. However, the role of miRNA-100 was still uncertain. We searched for qualified studies using PubMed, EMBASE, Web of Science, Cochrane library and CNKI databases. The diagnostic effect was evaluated by the pooled sensitivity, specificity, and other indexes. Pooled hazard ratios (HRs) with 95% confidence intervals (CIs) for overall survival (OS) were calculated to assess the prognostic value. This meta-analysis included 7 and 19 studies about diagnosis and prognosis, respectively. The results of pooled sensitivity, specificity, positive likelihood ratio (PLR), negative likelihood ratio (NLR) and diagnostic odds ratio (DOR) were 0.75 (95%CI: 0.71-0.78), 0.74 (95%CI: 0.69-0.78), 2.61 (95%CI: 1.81-3.76), 0.33 (95%CI: 0.24-0.45), 8.46 (95%CI: 4.85-14.77), respectively. And, the area under SROC curve (AUC) was 0.8141. We also found that lower expression of miRNA-100 in cancer tissues could significantly predict poorer prognosis in overall cancer (HR = 0.59, 95%CI: 0.39-0.90), especially in genital system tumors (HR = 0.42, 95%CI: 0.27-0.66, P = 0.431), bladder cancer (HR = 0.21, 95%CI: 0.06-0.73, P = 0.143) and esophageal squamous cell carcinoma (HR = 0.26, 95%CI: 0.13-0.52, P = 0.164). Our studies concluded that miRNA-100 has a certain value in diagnosis and it may indicate a poor prognosis of cancers.
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