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Zheng, Zi-Qi; Li, Zhi-Xuan; Zhou, Guan-Qun; Lin, Li; Zhang, Lu-Lu; Lv, Jia-Wei; Huang, Xiao-Dan; Liu, Rui-Qi; Chen, FoPing; He, Xiao-Jun; Kou, Jia; Zhang, Jian; Wen, Xin; Li, Ying-Qin; Ma, Jun; Liu, Na; Sun, Ying
Cancer research (Chicago, Ill.), 09/2019, Volume: 79, Issue: 18Journal Article
Long noncoding RNAs (lncRNA) play important roles in the tumorigenesis and progression of cancers. However, the clinical significance of lncRNAs and their regulatory mechanisms in nasopharyngeal carcinogenesis (NPC) are largely unknown. Here, based on a microarray analysis, we identified 384 dysregulated lncRNAs, of which, was one of the most upregulated lncRNAs in NPC. significantly associated with poor survival in NPC. N(6)-Methyladenosine (m6A) was highly enriched within and enhanced its RNA stability. functioned as an oncogenic lncRNA that promoted NPC cell proliferation, migration, invasion, tumor growth, and metastasis. Mechanistically, functioned as a competing endogenous RNA (ceRNA) for sponging miR-590-3p and miR-1275, leading to the upregulation of their target ( ), and the activation of FAK/PI3K/Akt signaling to promote NPC cell proliferation and invasion. In summary, our study reveals a potential ceRNA regulatory pathway in which modulates expression by binding to miR-590-3p and miR-1275, ultimately promoting tumorigenesis and metastasis in NPC. SIGNIFICANCE: These findings demonstrate the clinical significance of the lncRNA in nasopharyngeal carcinoma (NPC) and the regulatory mechanism involved in NPC development and progression, providing a novel prognostic indicator and promising therapeutic target.
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