Upregulation of the long non-coding RNA SPRY4-IT1 indicates a poor prognosis and promotes tumorigenesis in ovarian cancer

Abstract Long non-coding RNAs (lncRNAs) have been identified to be critical mediators in various tumors associated with cancer progression. LncRNA SPRY4-IT1 serves as a novel prognostic biomarker for hepatocellular carcinoma. However, the biological role and clinical significance of lncRNA SPRY4-IT1...

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Published in:Biomedicine & pharmacotherapy 2017-04, Vol.88, p.529-534
Main Authors: Li, Hongxia, Liu, Chunhua, Lu, Zhanbin, Chen, Li, Wang, Juan, Li, Yindi, Ma, Huiping
Format: Article
Language:English
Subjects:
Carcinogenesis - genetics
Carcinogenesis - pathology
Cell Line, Tumor
Cell Proliferation
Disease-Free Survival
Female
Gene Expression Regulation, Neoplastic
Gene Knockdown Techniques
Humans
Internal Medicine
Long non-coding RNA
Medical Education
Middle Aged
Multivariate Analysis
Ovarian cancer
Ovarian Neoplasms - genetics
Ovarian Neoplasms - pathology
Prognosis
RNA, Long Noncoding - genetics
RNA, Long Noncoding - metabolism
ROC Curve
SPRY4-IT1
Up-Regulation - genetics
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Summary:Abstract Long non-coding RNAs (lncRNAs) have been identified to be critical mediators in various tumors associated with cancer progression. LncRNA SPRY4-IT1 serves as a novel prognostic biomarker for hepatocellular carcinoma. However, the biological role and clinical significance of lncRNA SPRY4-IT1 in human ovarian cancer (OC) need to be completely elucidated. The aim of the present study was to explore the lncRNA SPRY4-IT1 expression in human OC patients and its role in OC cells. We show that lncRNA SPRY4-IT1 expression is significantly upregulated in ovarian tumor tissues and OC cell lines in comparison with adjacent non-tumor control tissues and the human ovarian immortalized nontumorigenic ovarian surface epithelial (IOSE), respectively. Further analysis by Kaplan-Meier survival analysis and multivariate analysis indicated that high lncRNA SPRY4-IT1 expression may be an independent prognostic factor for progression-free survival (PFS) and overall survival (OS) in OC patients. Furthermore, the area under the receiver operating characteristic (ROC) curve of lncRNA SPRY4-IT1 was up to 0.8512, indicating lncRNA SPRY4-IT1 has diagnostic values to discriminate tumor tissues from nontumorous tissues. Also, knockdown of lncRNA SPRY4-IT1 inhibited the proliferation of OC cells by CCK-8 assay and clonogenic assay and arrested cell cycle at a G0/G1 stage in OC cells. In conclusion, these results suggest that lncRNA SPRY4-IT1 may be considered as a new predictor in the clinical prognosis of OC patients.
ISSN:0753-3322
1950-6007
DOI:10.1016/j.biopha.2017.01.037