Journal
JAPANESE JOURNAL OF CLINICAL ONCOLOGY
Volume 48, Issue 5, Pages 480-484Publisher
OXFORD UNIV PRESS
DOI: 10.1093/jjco/hyy037
Keywords
long non-coding RNAs; colorectal cancer; metastasis; biomarkers
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Funding
- Youth Fund of National Natural Science Foundation of China [81502042]
- Natural Science Foundation for Young Scholars of Jiangsu Province, China [BK20140171]
- Program for Wuxi key medical Talents
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Background: Long non-coding RNAs (lncRNAs) have essential regulatory function, yet their roles in colorectal cancer (CRC) are not well understood. Materials and methods: Microarray was applied to detect lncRNAs expression profiles in tumor tissues, liver metastasis and paired adjacent normal tissues of CRC. And using RT-PCR to verify chip results. Results: A total of 10 680 lncRNAs demonstrated differential expressions (fold change >= 2) between tumor tissues and adjacent normal tissues; furthermore there were 2970 lncRNAs, which showed different expression level between CRC tissues with liver metastasis and adjacent normal tissues. Especially, lncRNA-AK098783 expression level was frequently higher in cancerous tissues than corresponding noncancerous tissue. Higher AK098783 expression was significantly correlated with shortened overall survival (P < 0.001) and distant metastasis (P < 0.001). Conclusions: Our results suggest that AK098783 is involved in distant metastasis and dramatically associated with poor prognosis in patients with CRC.
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