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  • Title: MiR-29a inhibits invasion and metastasis of cervical cancer via modulating methylation of tumor suppressor SOCS1.
    Author: Gong Y, Wan JH, Zou W, Lian GY, Qin JL, Wang QM.
    Journal: Future Oncol; 2019 May; 15(15):1729-1744. PubMed ID: 31038361.
    Abstract:
    Aims: To investigate roles of miR-29a-DNMT1-SOCS1 axis in cervical cancer invasion and migration. Materials & methods: The methylation level of SOCS1 was determined by methylation specific PCR. The cell apoptosis, proliferation, migration and invasion were examined by Annexin-V/PI staining, MTT and colony formation assays, plus scratch and transwell assays respectively. The expressions of epithelial-mesenchymal transition and NF-κB related proteins were determined by western blotting. Results: MiR-29a was downregulated, accompanied with DNMT1 upregulation and SOCS1 downregulation in cervical cancer tissues. MiR-29a suppressed DNMT1, inhibited SOCS1 promoter methylation and upregulated its expression. Moreover, miR-29a promoted cell apoptosis, suppressed proliferation, inhibited migration and invasion via inactivation of NF-κB signaling pathway in cervical cancer cells. Conclusion: MiR-29a-DNMT1-SOCS1 axis plays an important role on invasion and metastasis in cervical cancer via NF-κB signaling pathway.
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