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Liang Y, Shi J, He Q, Sun G, Gao L, Ye J, Tang X, Qu H. Hsa_circ_0026416 promotes proliferation and migration in colorectal cancer via miR-346/NFIB axis. Cancer Cell Int 2020; 20:494. [PMID: 33061846 PMCID: PMC7549246 DOI: 10.1186/s12935-020-01593-1] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2020] [Accepted: 10/06/2020] [Indexed: 02/07/2023] Open
Abstract
Background Colorectal cancer (CRC) is one of the most common cancers worldwide. Circular RNAs (circRNAs), a novel class of non-coding RNAs, have been confirmed to be key regulators of many diseases. With many scholars devoted to studying the biological function and mechanism of circRNAs, their mysterious veil is gradually being revealed. In our research, we explored a new circRNA, hsa_circ_0026416, which was identified as upregulated in CRC with the largest fold change (logFC = 3.70) of the evaluated circRNAs via analysing expression profiling data by high throughput sequencing of members of the GEO dataset (GSE77661) to explore the molecular mechanisms of CRC. Methods qRT-PCR and western blot analysis were utilized to assess the expression of hsa_circ_0026416, miR-346 and Nuclear Factor I/B (NFIB). CCK-8 and transwell assays were utilized to examine cell proliferation, migration and invasion in vitro, respectively. A luciferase reporter assay was used to verify the combination of hsa_circ_0026416, miR-346 and NFIB. A nude mouse xenograft model was also utilized to determine the role of hsa_circ_0026416 in CRC cell growth in vivo. Results Hsa_circ_0026416 was markedly upregulated in CRC patient tissues and plasma and was a poor prognosis in CRC patients. In addition, the area under the curve (AUC) of hsa_circ_0026416 (0.767) was greater than the AUC of CEA (0.670), CA19-9 (0.592) and CA72-4 (0.575). Functionally, hsa_circ_0026416 promotes cell proliferation, migration and invasion both in vitro and in vivo. Mechanistically, hsa_circ_0026416 may function as a ceRNA via competitively absorbing miR-346 to upregulate the expression of NFIB. Conclusions In summary, our findings demonstrate that hsa_circ_0026416 is an oncogene in CRC. Hsa_circ_0026416 promotes the progression of CRC via the miR-346/NFIB axis and may represent a potential biomarker for diagnosis and therapy in CRC.
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Affiliation(s)
- Yahang Liang
- Department of General Surgery, Qilu Hospital, Cheeloo College of Medicine, Shandong University, No. 107, West of Wenhua Street, Lixia District, Jinan, 250012 China
| | - Jingbo Shi
- Department of General Surgery, Qilu Hospital, Cheeloo College of Medicine, Shandong University, No. 107, West of Wenhua Street, Lixia District, Jinan, 250012 China
| | - Qingsi He
- Department of General Surgery, Qilu Hospital, Cheeloo College of Medicine, Shandong University, No. 107, West of Wenhua Street, Lixia District, Jinan, 250012 China
| | - Guorui Sun
- Department of General Surgery, Qilu Hospital, Cheeloo College of Medicine, Shandong University, No. 107, West of Wenhua Street, Lixia District, Jinan, 250012 China
| | - Lei Gao
- Department of General Surgery, Qilu Hospital, Cheeloo College of Medicine, Shandong University, No. 107, West of Wenhua Street, Lixia District, Jinan, 250012 China
| | - Jianhong Ye
- Department of General Surgery, Qilu Hospital, Cheeloo College of Medicine, Shandong University, No. 107, West of Wenhua Street, Lixia District, Jinan, 250012 China
| | - Xiaolong Tang
- Department of General Surgery, Qilu Hospital, Cheeloo College of Medicine, Shandong University, No. 107, West of Wenhua Street, Lixia District, Jinan, 250012 China
| | - Hui Qu
- Department of General Surgery, Qilu Hospital, Cheeloo College of Medicine, Shandong University, No. 107, West of Wenhua Street, Lixia District, Jinan, 250012 China
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