Su Wan, Chang Su, Jin Ding, Ji Liu, Lingli He, Lifen Liu, Qi Peng, Guantai Ni, Weipei Zhu
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LncRNA LOXL1-AS1 promotes ovarian cancer progression by enhanced BRIP1 mRNA stability.
Long non-coding RNAs (lncRNAs) have crucial effects on the development of malignant tumors. This work focused on determining how LOXL1-AS1 contributed to epithelial ovarian cancer development. As indicated by quantitative RT-polymerase chain reaction (qRT-PCR), LOXL1-AS1 showed significant overexpression within ovarian epithelial cancer tissues and ovarian cancer cells compared with non-cancer samples and regular human epithelial cell lines. According to CCK-8, flow cytometry, plate cloning, cell scratch test, a series of cell function tests in vitro, a nude mouse transplanted tumor model, and Western blot assays, LOXL1-AS1 siRNA transfection suppressed the growth, invasion, and epithelial-to-mesenchymal transformation characteristics of SKOV3 and A2780 cells in vitro and vivo. As discovered, LOXL1-AS1 targets BRCA1-interacting protein C-terminal helicase 1 (BRIP1) mRNA, resulting in a malignant phenotype of ovarian cancer. Overexpression of BRIP1 reversed the inhibition of cell progression induced by LOXL1-AS1 siRNA. In addition, based on RNA stability experiments, LOXL1-AS1 enhanced ovarian cancer cell growth and metastasis by stabilizing BRIP1 mRNA. Our findings reveal a novel mechanism of how LOXL1-AS1 enhances epithelial ovarian cancer progression by specifically regulating BRIP1 mRNA stability. This provides the potential therapeutic application of LOXL1-AS1 targeting BRIP1 for treating ovarian cancer.
期刊介绍：
Medical Oncology (MO) communicates the results of clinical and experimental research in oncology and hematology, particularly experimental therapeutics within the fields of immunotherapy and chemotherapy. It also provides state-of-the-art reviews on clinical and experimental therapies. Topics covered include immunobiology, pathogenesis, and treatment of malignant tumors.
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