Abstract
Dysregulated miRNAs have been demonstrated to be associated with the progression of colon cancer. The dysregulation of miR-3133 was observed in colon cancer, but its specific function was unclear. The functional role of miR-3133 in colon cancer was investigated in this study. A total of 113 colon cancer patients were included. miR-3133 expression was evaluated by PCR. The biological effects of miR-3133 in colon cancer cells were assessed with the help of the transwell and CCK8 assay. The prognostic value of miR-3133 was estimated by a series of statistical analyses. In mechanism, the interaction between miR-3133 and RUFY3 was evaluated by luciferase reporter. The significant downregulation of miR-3133 was observed in colon cancer, which showed a significant association with the advanced TNM stage and bad survival of patients. miR-3133 and TNM stage were identified as independent prognostic indicators of colon cancer. In vitro, the overexpression of miR-3133 exerted a dramatically inhibitory effect on cellular processes of colon cancer, which were enhanced by miR-3133 knockdown. Additionally, miR-3133 could negatively regulate the luciferase activity and expression of RUFY3, which was speculated as the underlying mechanism mediating the regulatory effect of miR-3133. miR-3133 functioned as a prognostic biomarker indicating the progression and prognosis of colon cancer, and it also served as a tumor suppressor via negatively regulating RUFY3, which provides a potential therapeutic target for colon cancer.
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The datasets used and/or analyzed during the current study are available from the corresponding author on reasonable request.
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All authors designed this study. H. J. G. and C. X. Z. conducted the experiment and analyzed the data. H. J. G. wrote the manuscript. C. X. Z. revised the manuscript. All authors reviewed and approved for publication.
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Gao, H., Zhang, C. miR-3133 is an unfavorable prognosis factor and tumor suppressor in colon cancer. Funct Integr Genomics 23, 132 (2023). https://doi.org/10.1007/s10142-023-01059-3
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DOI: https://doi.org/10.1007/s10142-023-01059-3