Open Access

MicroRNA‑1224 inhibits cell proliferation by downregulating CBX3 expression in chordoma

  • Authors:
    • Wei Xia
    • Jihe Huang
    • Chunhua Sun
    • Fei Shen
    • Kejia Yang
  • View Affiliations

  • Published online on: April 10, 2024     https://doi.org/10.3892/ol.2024.14395
  • Article Number: 262
  • Copyright: © Xia et al. This is an open access article distributed under the terms of Creative Commons Attribution License.

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Abstract

MicroRNAs (miRNAs/miRs) have abnormal expression in numerous tumors and are closely related to tumor development and resistance to radiotherapy and chemotherapy. However, there are few studies assessing the role and mechanism of miRNA in chordoma. The sequencing data of three pairs of chordoma and notochord tissues from the GSE56183 dataset were analyzed in the present study. Cell proliferation was assessed in vitro using Cell Counting Kit‑8. Bioinformatics analysis and the dual luciferase reporter assay were used to evaluate the regulatory relationship between miR‑1224 and chromobox 3 (CBX3) in chordoma. The results demonstrated that miR‑1224 had a significantly lower expression level in chordoma tissues and cell lines. Overexpression of miR‑1224 inhibited proliferation in the chordoma cells, while the knockdown of miR‑1224 promoted proliferation of the chordoma cells. Bioinformatics analysis and the dual luciferase reporter assay confirmed that CBX3 was a direct target gene of miR‑1224 and that miR‑1224 induced the proliferation of chordoma cells through the inhibition of CBX3. In summary, miR‑1224 reduced the proliferation of chordoma cells through inhibition of CBX3, which provides a theoretical basis for selecting a novel therapeutic target for chordoma.
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June-2024
Volume 27 Issue 6

Print ISSN: 1792-1074
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Copy and paste a formatted citation
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Spandidos Publications style
Xia W, Huang J, Sun C, Shen F and Yang K: MicroRNA‑1224 inhibits cell proliferation by downregulating CBX3 expression in chordoma. Oncol Lett 27: 262, 2024
APA
Xia, W., Huang, J., Sun, C., Shen, F., & Yang, K. (2024). MicroRNA‑1224 inhibits cell proliferation by downregulating CBX3 expression in chordoma. Oncology Letters, 27, 262. https://doi.org/10.3892/ol.2024.14395
MLA
Xia, W., Huang, J., Sun, C., Shen, F., Yang, K."MicroRNA‑1224 inhibits cell proliferation by downregulating CBX3 expression in chordoma". Oncology Letters 27.6 (2024): 262.
Chicago
Xia, W., Huang, J., Sun, C., Shen, F., Yang, K."MicroRNA‑1224 inhibits cell proliferation by downregulating CBX3 expression in chordoma". Oncology Letters 27, no. 6 (2024): 262. https://doi.org/10.3892/ol.2024.14395