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  • Title: [miR-25 promotes cell proliferation by targeting RECK in human cervical carcinoma HeLa cells].
    Author: Qiu G, Fang B, Xin G, Wei Q, Yuan X, Wu D.
    Journal: Xi Bao Yu Fen Zi Mian Yi Xue Za Zhi; 2015 Jan; 31(1):40-3. PubMed ID: 25575057.
    Abstract:
    OBJECTIVE: To investigate the effect of miR-25 on the proliferation of human cervical carcinoma HeLa cells and its association with reversion-inducing cysteine-rich protein with Kazal motifs (RECK). METHODS: The recombinant plasmids of pcDNATM6.2-GW-pre-miR-25, pmirGLO-RECK-WT, pmirGLO-RECK-MT and anti-miR-25 were constructed, and their transfection efficiencies into HeLa cells were identified by real-time quantitative PCR (qRT-PCR). The potential proliferation-stimulating function of miR-25 was analyzed by MTT assay in HeLa cells. Furthermore, the target effect of miR-25 on the RECK was determined by dual-luciferase reporter assay system, qRT-PCR and Western blotting. RESULTS: Sequence analysis demonstrated that the recombinant plasmids of pcDNATM6.2-GW-pre-miR-25 and pmirGLO-RECK-WT, pmirGLO-RECK-MT were successfully constructed, and qRT-PCR revealed that the transfection efficiencies of pre-miR-25 and anti-miR-25 were desirable in HeLa cells. MTT assay showed that miR-25 over-expression promoted the proliferation of HeLa cells. In addition, the luciferase activity was significantly reduced in HeLa cells cotransfected with pre-miR-25 and RECK-WT. The qRT-PCR and Western blotting indicated that the expression level of RECK was up-regulated in HeLa cells transfected with anti-miR-25 at the transcriptional and posttranscriptional levels. CONCLUSION: miR-25 could promote cell proliferation by targeting RECK in HeLa cells.
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