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Published on: January 12, 2020
Downregulation of lncRNA TUBA4B is Associated with Poor Prognosis for Epithelial Ovarian Cancer
Fang-Fang Zhu1, Fei-Yun Zheng1, Hai-Ou Wang2
1Department of Gynaecology, the First Affiliated Hospital of Wenzhou Medical University, 1 Fuxue Lane, Lucheng District, Wenzhou, Zhejiang, 325000, People's Republic of China.
Abstract:
A host of studies have revealed that long non-coding RNAs (lncRNAs) are critically involved in the development and progression of epithelial ovarian cancer. LncRNA TUBA4B is recently identified to be a critical mediator in non-small cell lung cancer. However, the clinical roles and biological functions of lncRNA TUBA4B in epithelial ovarian cancer have yet to be fully clarified. The present study was conducted to explore the expression of lncRNA TUBA4B in human epithelial ovarian cancer tissues and potential roles of lncRNA TUBA4B in ovarian cancer cells. The matched epithelial ovarian cancer specimens and adjacent normal tissues were employed to detect the expression of lncRNA TUBA4B. The prognostic value of lncRNA TUBA4B for tumor progression and survival rate was investigated. The effects of lncRNA TUBA4B on ovarian cancer cell proliferation and migration were also explored. The expression of lncRNA TUBA4B was significantly decreased in epithelial ovarian cancer tissue specimens. The low lncRNA TUBA4B level was closely related with pathological grade, FIGO stage and lymph node metastases, and serum CA125 level. Enforced expression of lncRNA TUBA4B obviously reduced the proliferation of SKOV3 cells, and attenuated the activation of ERK and Akt signaling pathways. Our data demonstrate for the first time that lower lncRNA TUBA4B may be a novel independent prognostic biomarker for overall survival of epithelial ovarian cancer. Overexpression of lncRNA TUBA4B inhibits the proliferation of ovarian cancer cells. LncRNA TUBA4B may be an important target for therapeutic intervention in ovarian cancer.
Insights
Lower levels of long non-coding RNA TUBA4B (lncRNA TUBA4B) are linked to poorer outcomes in epithelial ovarian cancer. Restoring lncRNA TUBA4B expression inhibits cancer cell growth, suggesting its therapeutic potential.
Area of Science:
- Oncology
- Molecular Biology
- Genetics
Background:
- Long non-coding RNAs (lncRNAs) play a role in epithelial ovarian cancer (EOC) development.
- LncRNA TUBA4B is implicated in non-small cell lung cancer, but its role in EOC is unclear.
Purpose of the Study:
- Investigate lncRNA TUBA4B expression in EOC tissues.
- Determine the prognostic value of lncRNA TUBA4B in EOC.
- Explore the functional role of lncRNA TUBA4B in EOC cells.
Main Methods:
- Quantitative analysis of lncRNA TUBA4B expression in EOC tissues and adjacent normal tissues.
- Correlation analysis between lncRNA TUBA4B levels and clinical parameters (pathological grade, FIGO stage, lymph node metastasis, CA125).
- In vitro experiments involving enforced expression of lncRNA TUBA4B in SKOV3 cells to assess effects on proliferation, migration, and signaling pathways (ERK, Akt).
Main Results:
- LncRNA TUBA4B expression was significantly decreased in EOC tissues compared to normal tissues.
- Low lncRNA TUBA4B levels correlated with advanced pathological grade, FIGO stage, lymph node metastasis, and elevated serum CA125.
- Enforced lncRNA TUBA4B expression reduced SKOV3 cell proliferation and attenuated ERK and Akt signaling.
Conclusions:
- Reduced lncRNA TUBA4B expression is a potential independent prognostic biomarker for overall survival in epithelial ovarian cancer.
- Overexpression of lncRNA TUBA4B inhibits ovarian cancer cell proliferation.
- LncRNA TUBA4B represents a potential therapeutic target for ovarian cancer.
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