Expression profile of long non-coding RNAs in pancreatic cancer and their clinical significance as biomarkers | Zendy

Yingxue Wang | Zendy; Zhihua Li | Zendy; Shangyou Zheng | Zendy; Yu Zhou | Zendy; Lei Zhao | Zendy; Huilin Ye | Zendy; Xiaohui Zhao | Zendy; Wenchao Gao | Zendy; Zhiqiang Fu | Zendy; Quanbo Zhou | Zendy; Yimin Liu | Zendy; Rufu Chen | Zendy

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Expression profile of long non-coding RNAs in pancreatic cancer and their clinical significance as biomarkers

Author(s) -

Yingxue Wang,

Zhihua Li,

Shangyou Zheng,

Yu Zhou,

Lei Zhao,

Huilin Ye,

Xiaohui Zhao,

Wenchao Gao,

Zhiqiang Fu,

Quanbo Zhou,

Yimin Liu,

Rufu Chen

Publication year - 2015

Publication title -

oncotarget

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.373

H-Index - 127

ISSN - 1949-2553

DOI - 10.18632/oncotarget.5533

Subject(s) - pancreatic cancer , long non coding rna , medicine , clinical significance , microrna , biomarker , cancer , cancer research , bioinformatics , oncology , biology , computational biology , rna , genetics , gene

Long non-coding RNAs (lncRNAs) have shown great potential as powerful and non-invasive tumor markers. However, little is known about their value as biomarkers in pancreatic cancer (PC). We applied an Arraystar Human LncRNA Microarray which targeting 7419 lncRNAs to determine the lncRNA expression profile in PC and to screen the potential biomarkers. The most increased lncRNAs in PC tissues were HOTTIP-005, XLOC_006390, and RP11-567G11.1. Increased HOTTIP-005 and RP11-567G11.1 expression were poor prognostic factors for patients with PC (n = 144, p < 0.0001). The expression patterns of HOTTIP splice variants in PC were also detected. HOTTIP-005 and HOTTIP-001 were the first and second most increased HOTTIP splice variants, respectively. Plasma HDRF and RDRF (HOTTIP-005 and RP11-567G11.1 derived RNA fragments in plasma/serum) were present in stable form. Their levels were significantly increased in the patients with PC as compared to the healthy controls (n = 127 and 122 respectively, p < 0.0001) and the high levels were derived from PC. HDRF and RDRF levels are promising indicators for distinguishing patients with PC from those without PC. This study identified HOTTIP-005 and RP11-567G11.1 and their plasma fragments with the potential to be used as prognostic and diagnostic biomarkers of PC. Further large-scale prospective studies are needed to confirm our findings.

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