FALEC exerts oncogenic properties to regulate cell proliferation and cell-cycle in endometrial cancer.

Focally amplified lncRNA on chromosome 1 (FALEC) is novel lncRNA located in a focal amplicon on chromosome 1q21.2, and has been identified as an oncogenic properties in a variety of human cancers. However, there was no report about the expression pattern and biological function of FALEC in endometrial cancer. In our research, FALEC expression was increased in endometrial cancer tissue samples and cell lines compared with corresponding paracancerous normal tissue samples and cell line, respectively. Furthermore, we investigated the clinical significance of FALEC in endometrial cancer patients, and found endometrial cancer patients with advanced clinical stage or large tumor size had higher levels of FALEC expression than those with early clinical stage or small tumor size. The in vitro studies showed silencing of FALEC expression inhibited cell proliferation and arrested cell cycle at G0/G1. In conclusion, FALEC is overexpressed in endometrial cancer tissues and cells, and involved in regulating cell proliferation and cell-cycle.

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