Ontology highlight
ABSTRACT: Background
Osteosarcoma is a most common bone malignant tumor which threatens children and adolescents. Circular RNAs (circRNAs) fundamentally play essential roles in the progress and development of human cancers by sponging with microRNAs (miRNAs). However, the role of circRNAs in osteosarcoma is not clear. The aim of the study was to investigate the roles and molecular mechanism of circRNAs in osteosarcoma.Results
The data from qRT-PCR showed that circ_0051079 expression was higher in osteosarcoma cells and tissues compared to their normal controls. Meanwhile, bioinformatic analysis indicated that circ_0051079 was a sponge of miR-26a-5p, which was verified by luciferase activity assay. Subsequently, TGF-?1 was verified as a putative target mRNA of miR-26a-5p by luciferase assay. Cellular function assays were conducted and the findings revealed that circ_0051079/miR-26a-5p/TGF-?1 regulated osteosarcoma proliferation and metastasis.Conclusion
The study demonstrated that circ_0051079 could act as an oncogene via regulating miR-26a-5p/TGF-?1 and a potential biomarker for osteosarcoma diagnose.
SUBMITTER: Zhang Z
PROVIDER: S-EPMC6883546 | biostudies-literature | 2019
REPOSITORIES: biostudies-literature
Zhang Zuojun Z Zhao Ming M Wang Guojie G
Cell & bioscience 20191129
<h4>Background</h4>Osteosarcoma is a most common bone malignant tumor which threatens children and adolescents. Circular RNAs (circRNAs) fundamentally play essential roles in the progress and development of human cancers by sponging with microRNAs (miRNAs). However, the role of circRNAs in osteosarcoma is not clear. The aim of the study was to investigate the roles and molecular mechanism of circRNAs in osteosarcoma.<h4>Results</h4>The data from qRT-PCR showed that circ_0051079 expression was hi ...[more]