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LncRNA TINCR is Associated with Clinical Progression and Serves as a Tumor Suppressive Role in Prostate Cancer

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Introduction: Terminal differentiation-induced non-coding RNA (TINCR) has been suggested to have aberrant expression in multiple human cancers, and functions as tumor suppressor or promoter in various types of human tumors depending on the specific cancer types. The expression status and biological function of TINCR in prostate cancer is still unknown.
Materials and methods: In our study, we detected TINCR expression in prostate cancer tissue samples and cell lines, and analyzed the association between TINCR expression and clinical parameters in 160 prostate cancer patients. Moreover, we conducted gain-of-function and loss-of-function studies in prostate cancer cell to explore the biological function and molecular mechanism of TINCR.
Results: In our results, low-expression TINCR was observed in prostate cancer, and correlated with advanced clinical T stage, lymph node involvement, distant metastasis, high Gleason score and poor prognosis in prostate cancer patients. Moreover, levels of TINCR expression were negatively associated with TRIP13 mRNA and protein expressions in prostate cancer tissues, and negatively regulated the TRIP13 mRNA and protein expressions in prostate cancer cell lines. TINCR inhibits prostate cancer cell proliferation, migration and invasion via suppressing TRIP13 expression.
Conclusion: TINCR plays a tumor suppressive role in regulating prostate cancer cell proliferation, migration and invasion through modulating TRIP13 expression.

Research/Investigative Sites

Department of Urology, The Fourth Affiliated Hospital of China Medical University, Liaoning 110000, Shenyang, China

Department of Urology, The Affiliated Hospital of Chifeng Medical College, Chifeng 024000, Inner Mongolia, China

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