miR-539 inhibits human colorectal cancer progression by targeting RUNX2

Biomedicine & Pharmacotherapy = Biomédecine & Pharmacothérapie
Dacheng WenShutao Zhao


Emerging evidence has shown that microRNAs (miRNAs) such as miR-539 play critical roles in carcinogenesis and progression in many types of cancer, including human colorectal cancer (CRC). However, the roles and underlying mechanism of miR-539 in CRC have not been well identified. The aims of this study were, therefore, to investigate the regulatory role and potential mechanism of miR-539 in human CRC. Here, we show that miR-539 expression is downregulated in CRC tissues and cell lines. The expression level of miR-539 is inversely associated with advanced clinical stage and lymph node metastasis. In vitro studies reveal that overexpression of miR-539 inhibits CRC cell proliferation and colony formation as well as migration and invasion; in vivo results demonstrate that overexpression of miR-539 dramatically reduces CRC xenograft tumor growth. Moreover, runt-related transcription factor 2 (RUNX2), a known oncogene, was identified as a target transcript of miR-539 in CRC by bioinformatic analysis, luciferase reporter assay, qPCR, and western blotting. RUNX2 expression levels were upregulated and inversely correlated with miR-539 expression in CRC tissues. Importantly, overexpression of RUNX2 without the 3'-untranslated region that...Continue Reading


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Related Concepts

RUNX2 protein, human
MIRN539 microRNA, human
DNA Sequence
Cell Motility
Mice, Inbred BALB C
Mice, Nude
Neoplasm Invasiveness
Tumor Stem Cell Assay
Colorectal Neoplasms

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