Abstract
HOTAIR has been reported to be associated with development and metastasis in different types of cancer. This meta- analysis collected all relevant articles and explored the correlation of HOTAIR with lymph node metastasis (LNM) and distant metastasis (DM). A literature collection was conducted by searching PubMed, Web of Science, Google Scholar and Cochrane Library (up to Sep 11, 2016). The odds ratio (OR) with 95% confidence interval (95% CI) was calculated to assess the association with strength. Nineteen studies were included in this study, with a total of 1874 patients. The study objects were all Asians. We found high HOTAIR expression in tumor tissues was significantly correlated with LNM and DM, and analysis showed a pooled OR of 3.18 (95% CI: 2.10-4.81, p<0.00001) and 3.93 (95% CI: 2.39-6.47, p<0.00001), respectively. HOTAIR may serve as a novel diagnostic biomarker for cancer metastasis.
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