Hsa_circRNA_103809 regulated the cell proliferation and migration in colorectal cancer via miR-532–3p / FOXO4 axis
2018
Abstract Circular RNAs(circRNAs) are a class of non-coding RNAs that are widely expressed in a variety of cell species. The role they play in cancers is poorly understood, especially in colorectal cancer (CRC). Hsa_circRNA_103809 (hsa_circ_0072088, circZFR)has been demonstrated to be lowly expressed in colorectal cancer tissues and is associated with stage and lymph node metastasis of cancer tissues. Real-time quantitative PCR (qRT-PCR) was used to verify the relationship of hsa_circRNA_103809 between colorectal cancer and paired adjacent tissue in clinical tissue samples. Then, the proliferative capacity, migration ability, cell cycle, and apoptosis were measured using wound-healing assay, CCK8, transwell assay, flow cytometry, and the like, when hsa_circRNA_103809 expression in SW620 and COCA-2. The qRT-PCR, western bolt and other experiments verify that the expression of hsa_circRNA_103809 can regulate the expression of miR-532–3P and FOXO4. Hsa_circRNA_103809 was found to be significantly down regulated in CRC tissues and cell lines and compared with paired adjacent non-tumorous tissues and normal FHC cells. Hsa_circRNA_103809 participates in the regulation of biological functions through the miR-532–3P/FOXO4 axis in the CRC. Hsa_circRNA_103809 may be a potential novel gene target for the diagnosis and treatment of CRC.
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