Effect of long non-coding RNA highly up-regulated in liver cancer (HULC) on the prognosis of cancer: A meta-analysis

Yong Li, Yi-Hong Liu, Xian Chen, Yan-Juan Zhu, Hai-Bo Zhang _, Yan Li, Jian-Ping Bai, Li-Rong Liu, Yan-Chun Qu and Xin Qu

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Oncotarget. 2017; 8:83246-83250. https://doi.org/10.18632/oncotarget.18452

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Yong Li1,*, Yi-Hong Liu1,*, Xian Chen1, Yan-Juan Zhu1, Hai-Bo Zhang1, Yan Li1, Jian-Ping Bai1, Li-Rong Liu1, Yan-Chun Qu1 and Xin Qu1

1Department of Oncology, Guangdong Provincial Hospital of Chinese Medicine, Guangzhou 510120, Guangdong, China

*Yong Li and Yi-Hong Liu contributed equally to this work

Correspondence to:

Hai-Bo Zhang, email: [email protected]

Keywords: long non-coding RNAs, HULC, cancer, overall survival

Received: April 18, 2017     Accepted: May 03, 2017     Published: June 13, 2017


Some studies investigated the association between highly up-regulated in liver cancer (HULC) and the overall survival (OS) of cancer. However, the results were conflicted and inconclusive. Therefore, we performed this meta-analysis to determine the association between HULC and the OS of cancer. A comprehensive online search was conducted on Online electronic databases (PubMed, EMBASE, and Wanfang database) from the earliest date to Aug 30, 2016. The strength of the association was calculated with the HRs and respective 95% CIs. The expression of HULC was significantly associated with OS of cancers (HR = 2.12; 95% CI 1.61 – 2.79; P<0.00001). In the subgroup analysis by ethnicity, the expression of HULC was significantly associated with OS in Chinese patients (HR = 2.04; 95% CI 1.55 – 2.70; P<0.00001). In the subgroup analysis by cancer type, HULC was associated with OS in osteosarcoma patients (HR = 3.36; 95% CI 1.02 – 11.07; P = 0.05) and in gastric cancer patients (HR = 2.17; 95% CI 1.08 – 4.38; P = 0.03). We performed the sensitivity analysis to assess the stability of the meta-analysis. A significant association was found in studies with adjustment (HR = 2.01; 95% CI 1.35 – 2.99; P= 0.0006). In conclusion, this meta-analysis suggested that high expression of HULC was significantly associated with OS of cancer.

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