microRNA-107 functions as a candidate tumor suppressor gene in renal clear cell carcinoma involving multiple genes

Urologic Oncology
Nan SongXu Zhang

Abstract

MicroRNAs (miRNAs) are small RNAs with oncogenic and tumor-suppressing functions in cancer. miRNAs not only regulate various target genes but also participate in vital signaling pathways. The tumor-suppressing function of miRNA-107 (miR-107) was confirmed in clear cell renal cell carcinoma in 52 paired clinical specimens and renal cell carcinoma cell lines. Significant correlations were noted between clinical features and miR-107 expression level. Lentiviral vector and biosynthesis mimics were used to overexpress pre-miR-107 or mimicked miR-107 to investigate further the tumorigenesis of miR-107 in vivo and in vitro. Cell proliferation and invasiveness were inhibited in the 786-O cell line after miR-107 was delivered. High miR-107 level expression can apparently induce cell cycle arrest at the G2/M phase and retard tumor growth in nude mice. In addition, eukaryotic translation initiation factor 5 was found to be a direct target of miR-107 and exhibited an inverse relationship with miR-107. It was seen that p53 and VHL genes, which are implicated in renal tumors, were associated with miR-107. In summary, our results showed that miR-107 can inhibit cell proliferation and invasiveness of renal cell carcinoma. Furthermore, this stu...Continue Reading

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Citations

Aug 16, 2016·Clinical Gastroenterology and Hepatology : the Official Clinical Practice Journal of the American Gastroenterological Association·Giovanni MussoElena Paschetta
Sep 15, 2020·The EMBO Journal·Ryota KurimotoHiroshi Asahara
Jul 21, 2017·Frontiers in Molecular Neuroscience·Shasha ZhangRenjie Chai
May 15, 2021·Frontiers in Cell and Developmental Biology·Jiarui LiuXin Wang

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