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Article

Expression and clinical significance of estrogen‑regulated long non-coding RNAs in estrogen receptor α-positive ovarian cancer progression

  • Authors:
    • Jun-Jun Qiu
    • Le-Chi Ye
    • Jing-Xin Ding
    • Wei-Wei Feng
    • Hong‑Yan Jin
    • Ying Zhang
    • Qing Li
    • Ke-Qin Hua
  • View Affiliations / Copyright

    Affiliations: Department of Gynecology, Obstetrics and Gynecology Hospital, Fudan University, Shanghai 200011, P.R. China, Department of General Surgery, Zhongshan Hospital of Fudan University, Shanghai 200032, P.R. China
  • Pages: 1613-1622
    |
    Published online on: January 27, 2014
       https://doi.org/10.3892/or.2014.3000
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Abstract

Estrogen (E2) has long been implicated in epithelial ovarian cancer (EOC) progression. The effects of E2 on cancer progression can be mediated by numerous target genes, including coding RNAs and, more recently, non-coding RNAs (ncRNAs). Among the ncRNAs, long ncRNAs (lncRNAs) have emerged as new regulators in cancer progression; therefore, our aim was to determine whether the expression of any lncRNAs is regulated by E2 and, if so, whether a subset of these lncRNAs have some clinical significance in EOC progression. A microarray was performed to identify E2-regulated lncRNAs in E2 receptor (ER) α-positive EOC cells. Bioinformatics analyses of lncRNAs were conducted, focusing on gene ontology and pathway analyses. Quantitative real-time polymerase chain reactions were performed to confirm the expression of certain lncRNAs in ERα-positive EOC tissues. The correlation between certain lncRNA expression and clinicopathological factors as well as prognosis in ERα-positive EOC patients was then analyzed. We showed that 115 lncRNAs exhibited significant changes in E2-treated SKOV3 cells compared with untreated controls. Most of these lncRNAs were predicated to have potential to contribute to cancer progression. Notably, three candidates (TC0100223, TC0101686 and TC0101441) were aberrantly expressed in ERα-positive compared to ERα-negative EOC tissues, showing correlations with some malignant cancer phenotypes such as advanced FIGO stage and/or high histological grade. Furthermore, multivariate analysis indicated that TC0101441 was an independent prognostic factor for overall survival. Taken together, these results indicate for the first time that E2 can modulate lncRNA expression in ERα-positive EOC cells and that certain lncRNAs are correlated with advanced cancer progression and suggestive of a prognostic indicator in ERα-positive EOC patients. Knowledge of these E2-regulated lncRNAs could aid in the future understanding of the estrogenic effect on EOC progression and may assist in the clinical design of new target therapies based on a perspective of lncRNA.
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Copy and paste a formatted citation
Spandidos Publications style
Qiu J, Ye L, Ding J, Feng W, Jin HY, Zhang Y, Li Q and Hua K: Expression and clinical significance of estrogen‑regulated long non-coding RNAs in estrogen receptor α-positive ovarian cancer progression. Oncol Rep 31: 1613-1622, 2014.
APA
Qiu, J., Ye, L., Ding, J., Feng, W., Jin, H., Zhang, Y. ... Hua, K. (2014). Expression and clinical significance of estrogen‑regulated long non-coding RNAs in estrogen receptor α-positive ovarian cancer progression. Oncology Reports, 31, 1613-1622. https://doi.org/10.3892/or.2014.3000
MLA
Qiu, J., Ye, L., Ding, J., Feng, W., Jin, H., Zhang, Y., Li, Q., Hua, K."Expression and clinical significance of estrogen‑regulated long non-coding RNAs in estrogen receptor α-positive ovarian cancer progression". Oncology Reports 31.4 (2014): 1613-1622.
Chicago
Qiu, J., Ye, L., Ding, J., Feng, W., Jin, H., Zhang, Y., Li, Q., Hua, K."Expression and clinical significance of estrogen‑regulated long non-coding RNAs in estrogen receptor α-positive ovarian cancer progression". Oncology Reports 31, no. 4 (2014): 1613-1622. https://doi.org/10.3892/or.2014.3000
Copy and paste a formatted citation
x
Spandidos Publications style
Qiu J, Ye L, Ding J, Feng W, Jin HY, Zhang Y, Li Q and Hua K: Expression and clinical significance of estrogen‑regulated long non-coding RNAs in estrogen receptor α-positive ovarian cancer progression. Oncol Rep 31: 1613-1622, 2014.
APA
Qiu, J., Ye, L., Ding, J., Feng, W., Jin, H., Zhang, Y. ... Hua, K. (2014). Expression and clinical significance of estrogen‑regulated long non-coding RNAs in estrogen receptor α-positive ovarian cancer progression. Oncology Reports, 31, 1613-1622. https://doi.org/10.3892/or.2014.3000
MLA
Qiu, J., Ye, L., Ding, J., Feng, W., Jin, H., Zhang, Y., Li, Q., Hua, K."Expression and clinical significance of estrogen‑regulated long non-coding RNAs in estrogen receptor α-positive ovarian cancer progression". Oncology Reports 31.4 (2014): 1613-1622.
Chicago
Qiu, J., Ye, L., Ding, J., Feng, W., Jin, H., Zhang, Y., Li, Q., Hua, K."Expression and clinical significance of estrogen‑regulated long non-coding RNAs in estrogen receptor α-positive ovarian cancer progression". Oncology Reports 31, no. 4 (2014): 1613-1622. https://doi.org/10.3892/or.2014.3000
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