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- W4247557928 abstract "Abstract Background: Mounting evidence has shown that Circular RNAs (circRNAs) are associated with initiation and progression of human cancers. However, the expression and function of circRNAs in the development of osteosarcoma (OS) remain unclear. Methods: In this study, the expression profiles of circRNA circ-ANKS1B in OS were identified through qRT-PCR and in situ hybridization (ISH). The relationships between expression of circ-ANKS1B and clinicopathological features of OS patients was analyzed. Cell proliferation potential, migration and invasion ability of OS cells were evaluated through CCK8, colony formation, transwell and wound healing assays in vitro . Xenograft nude mouse experiment was performed to investigate tumor formation ability in vivo . The downstream regulated microRNA of circ-ANKS1B was proved via qRT-PCR and dual-luciferase reporter. Results: We found expression of circ-ANKS1B was markedly overexpressed in OS cell lines and tumor tissues, and high expression of circ-ANKS1B was correlated with advanced TNM stage and poor prognosis of OS patients. The results of functional experiments showed that depletion of circ-ANKS1B could inhibit proliferation and invasion ability of OS cells in vitro , and tumor formation ability in vivo . Further mechanistic studies revealed that circ-ANKS1B could sponge endogenous miR-149-5p and partially reversed the suppressive effect of miR-149-5p in OS cells. Furthermore, we demonstrated that circ-ANKS1B regulated Ki-67 expression by sponging miR-149-5p. Conclusions: In summary, our data showed that circ-ANKS1B accelerated cell growth and invasion in OS by sponging miR-149-5p and regulating Ki-67." @default.
- W4247557928 created "2022-05-12" @default.
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- W4247557928 date "2020-02-13" @default.
- W4247557928 modified "2023-10-12" @default.
- W4247557928 title "circ-ANKS1B facilitates osteosarcoma cell proliferation and invasiveness via upregulating Ki-67 expression by sponging miR-149-5p" @default.
- W4247557928 doi "https://doi.org/10.21203/rs.2.22619/v2" @default.
- W4247557928 hasPublicationYear "2020" @default.
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