Abstract
CircRNA is a kind of covalent head-to-tail looped RNA and plays an important role in tumor development. However, the identification of new potential targetable circRNAs to inhibit cancer development is still a huge challenge. In this study, we found that circEHMT1 inhibited migration and invasion of breast cancer cells. Mechanistically, we identified miR-1233-3p as a target of circEHMT1, and the circEHMT1/miR-1233-3p axis regulated matrix metalloprotease 2 (MMP2) by modulating the transcription factor Krϋppel-like factor 4 (KLF4). In summary, we showed that circEHMT1 has potential as a prognostic factor in breast cancer and played a tumor suppressor role via the circEHMT1/miR-1233-3p/KLF4/MMP2 axis.
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