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The Circular RNA circSKA3 Facilitates the Malignant Biological Behaviors of Medulloblastoma via miR-520 h/CDK6 Pathway

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Abstract

Circular RNAs (circRNAs) are reported to participate in the development of diverse human malignancies. This work investigated the mechanism of circSKA3 in modulating medulloblastoma progression. A total of 15 cases of medulloblastoma were collected in this work. Daoy cells were used to construct cell models. The expression level of circSKA3, microRNA-520 h (miR-520 h), and cyclin-dependent kinase 6 (CDK6) mRNA in tissues or cells was examined by quantitative real-time polymerase chain reaction (qRT-PCR). Western blot was employed to detect CDK6 protein expression. CCK-8 experiment, Transwell assay, and flow cytometry were applied to detect the regulatory effects of circSKA3 on cell proliferation, migration, invasion, and cell cycle. Dual-luciferase reporter gene experiment was executed to determine the relationship between circSKA3 and miR-520 h, and between miR-520 h and CDK6. circSKA3 was remarkably up-modulated in medulloblastoma tissues. CircSKA3 depletion markedly suppressed Daoy cell viability, migration, invasion, and cell cycle progression. CircSKA3 overexpression induced the opposite effects. circSKA3 could decoyed miR-520 h, which targeted the 3’ UTR of CDK6. circSKA3 expression in medulloblastoma tissues was negatively correlated with miR-520 h expression and positively correlated with CDK6 expression. “Rescue” experiments revealed that miR-520 h down-modulation or CDK6 overexpression remarkably counteracted the inhibitory effect of circSKA3 knockdown on Daoy cells. circSKA3 facilitates medulloblastoma progression through miR-520 h/CDK6.

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Data Availability

The data used to support the findings of this study are available from the corresponding author upon request.

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Authors and Affiliations

  1. Department of Neurosurgery, Weifang Yidu Central Hospital, Qingzhou, 262500, Shandong, China

    Xu-chang Liu & Fa-Chen Wang

  2. Department of Pediatrics, Central Hospital of Linyi, Linyi, 276400, Shandong, China

    Ji-Hong Wang

  3. Department of Laboratory, Lixia District People’s Hospital of **an City, **an, 250014, Shandong, China

    Jun-Yan Zhao

  4. Pharmaceutical Department, Second People’s Hospital, **gyi Road, No.148, **an, 250001, Shandong, China

    Si-Yong Ye

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  1. Xu-chang Liu
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  3. Ji-Hong Wang
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Contributions

JHW and JYZ conceived and designed the experiments:. JHW performed the experiments and statistical analysis. XCL, JHW, and JYZ wrote the paper. XCL, FCW, and SYY performed the revision. All authors read and approved the final manuscript.

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Correspondence to Si-Yong Ye.

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Liu, Xc., Wang, FC., Wang, JH. et al. The Circular RNA circSKA3 Facilitates the Malignant Biological Behaviors of Medulloblastoma via miR-520 h/CDK6 Pathway. Mol Biotechnol 64, 1022–1033 (2022). https://doi.org/10.1007/s12033-022-00466-4

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  • DOI: https://doi.org/10.1007/s12033-022-00466-4

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