Abstract
Objective
Osteosarcoma is one of the most common malignant bone tumors which mainly occurs in children and adolescents. It is characterized by high malignancy and high metastasis rate, resulting in high mortality and disability. Accumulating studies have validated that long noncoding RNAs (lncRNAs) exerted vital roles in multiple cancer progression by regulating the expression of specific genes. This work aimed to explore the potential molecular mechanism of EWS in osteosarcoma.
Results
In this study, we discovered that both EWS and Sox2 were highly expressed in osteosarcoma tissue samples. In addition, the expression of EWS was positively associated with Sox2 level. We conducted a series of functional assays and observed that Sox2 overexpression could significantly overturned the enhancement of cell proliferation and the decline of cell apoptosis induced by EWS knockdown in osteosarcoma. Moreover, we found a key upstream regulatory gene of Sox2: miR-199a-5p.
Conclusions
Through molecular biology studies and rescue assays, we further demonstrated that EWS promotes tumor growth through the miR-199a-5p/Sox2 signaling axis in osteosarcoma. These findings may provide an important theoretical basis for the clinical diagnosis and treatment of osteosarcoma.
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He, P., Ding, J. EWS promotes cell proliferation and inhibits cell apoptosis by regulating miR-199a-5p/Sox2 axis in osteosarcoma. Biotechnol Lett 42, 1263–1274 (2020). https://doi.org/10.1007/s10529-020-02859-4
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DOI: https://doi.org/10.1007/s10529-020-02859-4