J Cancer 2021; 12(21):6429-6438. doi:10.7150/jca.62120 This issue

Research Paper

FGF14-AS2 accelerates tumorigenesis in glioma by forming a feedback loop with miR-320a/E2F1 axis

Peng Zhang1,2,3#, Xueping Gu1#, Na Zhang1#, Liang Liu1, Xuchen Dong4, Haoran Li1, Shan Cheng1, Suwen Li1, Jiaqi Yuan1, Yongdong Li1, Jun Dong1✉

1. Department of Neurosurgery, The Second Affiliated Hospital of Soochow University, Suzhou 215004, Jiangsu, China.
2. Rugao Hospital Affiliated to Nantong University, Nantong 226500, Jiangsu, China.
3. Rugao Clinical College, Jiangsu Health Vocational College, Nantong 226500, Jiangsu, China.
4. Medical College of Soochow University, Suzhou 215123, Jiangsu, China.
#These authors contributed equally to this work.

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Citation:
Zhang P, Gu X, Zhang N, Liu L, Dong X, Li H, Cheng S, Li S, Yuan J, Li Y, Dong J. FGF14-AS2 accelerates tumorigenesis in glioma by forming a feedback loop with miR-320a/E2F1 axis. J Cancer 2021; 12(21):6429-6438. doi:10.7150/jca.62120. Available from https://www.jcancer.org/v12p6429.htm

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Abstract

Graphic abstract

Glioma is the most common primary tumour in the central nervous system in adults, and at present, there is no effective treatment to cure this malignancy. Long noncoding RNAs (lncRNAs) are closely related to tumour progression and have attracted increasing attention in tumour research. However, the role of lncRNA FGF14-AS2 in glioma tumorigenesis has not been determined. In the present study, we found that FGF14-AS2 expression was significantly elevated in glioma tissues and was associated with poor survival in glioma patients. Silencing FGF14-AS2 inhibited the proliferation, migration and invasion ability of glioma cells. In vivo assay showed that silencing FGF14-AS2 led to inhibition of tumour growth. In addition, FGF14-AS2 was observed to promote glioma progression via the miR-320a/E2F1 axis. Moreover, E2F1 could bind to the promoter region of FGF14-AS2, thereby enhancing FGF14-AS2 expression. In conclusion, FGF14-AS2 could accelerate tumorigenesis of glioma by forming a feedback loop with the miR-320a/E2F1 axis which suggested that FGF14-AS2 could serve as a therapeutic target for glioma.

Keywords: glioma, lncRNA, FGF14-AS2, miR-320a, E2F1