MicroRNA-1247 inhibits cell proliferation by directly targeting ZNF346 in childhood neuroblastoma
Biol. Res; 51 (), 2018
Publication year: 2018
BACKGROUND:
Neuroblastoma (NB) represents the most common extracranial solid tumor in children. Accumulating evidence shows that microRNAs (miRs) play an important role in the carcinogenesis of NB. Here, we investigated the biological function of miR-1247 in NB in vitro. METHODS/RESULTS: We found miR-1247 was downregulated in NB tissues and cells using quantitative PCR analysis. Gain- and loss-of-function studies demonstrated that miR-1247 significantly suppressed cell proliferation and induced cell cycle G0/G1 phase arrest and cell apoptosis of NB cells in vitro by using MTT, colony formation assay and Flow cytometry analysis. Luciferase assay suggested ZNF346 was the target of miR-1247 and its expression could be down-regulated by miR-1247 overexpression using Western blotting. Furthermore, downregulation of ZNF346 by siRNA performed similar effects with overexpression of miR-1247 in NB cells.CONCLUSIONS:
Our findings suggested miR-1247 directly targeted to repress ZNF346 expression, thus suppressing the progression of NB, which might be a novel therapeutic target against NB.
Proteínas de Unión al ADN/metabolismo, MicroARNs/metabolismo, Neuroblastoma/metabolismo, Proteínas de Unión al ARN/metabolismo, Proliferación Celular/genética, Proteínas de Unión al ADN/genética, MicroARNs/genética, Neuroblastoma/genética, Neuroblastoma/patología, Proteínas de Unión al ARN/genética, Preescolar, Ensayo de Unidades Formadoras de Colonias, Regulación hacia Abajo, Citometría de Flujo, Regulación Neoplásica de la Expresión Génica, Fenotipo, Reacción en Cadena en Tiempo Real de la Polimerasa, Factores de Tiempo, Células Tumorales Cultivadas