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Circular RNA OMA1 regulates the progression of breast cancer via modulation of the miR‑1276/SIRT4 axis

  • Authors:
    • Lingli Xu
    • Ke Xu
    • Lijun Xiang
    • Jiamei Yan
  • View Affiliations / Copyright

    Affiliations: Department of Ultrasound, Ningbo Zhenghai Longsai Hospital, Ningbo, Zhejiang 315200, P.R. China, Department of Radiology, Ningbo Zhenghai Traditional Chinese Medicine Hospital, Ningbo, Zhejiang 315200, P.R. China, Department of Ultrasound, Ningbo Medical Center Lihuili Eastern Hospital, Ningbo, Zhejiang 315040, P.R. China
    Copyright: © Xu et al. This is an open access article distributed under the terms of Creative Commons Attribution License.
  • Article Number: 728
    |
    Published online on: August 13, 2021
       https://doi.org/10.3892/mmr.2021.12367
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Abstract

Mounting evidence has indicated that circular RNAs (circRNAs) serve essential roles in the tumorigenesis and development of various types of cancer. However, the biological functions and the underlying mechanisms of circRNAs in breast cancer (BC) remain largely elusive. In the present study, the expression pattern of circRNAs in three pairs of BC tissues and adjacent normal tissues was determined using a circRNA microarray. The expression and prognostic value of circOMA1 were evaluated by reverse transcription‑quantitative PCR in 64 pairs of BC tissues and adjacent normal tissues. Survival curves were generated by the Kaplan‑Meier method, and statistical significance was estimated using the log‑rank test. A series of in vitro functional experiments were then performed to investigate the role of circOMA1 in the tumorigenesis of BC. The results revealed that the expression levels of circOMA1 were upregulated in BC tissues, and its expression was markedly associated with tumor size and lymph node metastasis. Receiver operating characteristic analysis demonstrated that the expression of circOMA1 could be used to discriminate between BC tissues and adjacent normal tissues. Functionally, overexpression of circOMA1 promoted the viability, migration and invasion of BC cells, whereas circOMA1 knockdown had the opposite effect. Mechanistic investigations showed that circOMA1 promoted the progression of BC by sponging microRNA (miR)‑1276 and upregulating sirtuin 4 (SIRT4) expression. In conclusion, circOMA1 may act as an oncogenic circRNA in BC via regulation of the miR‑1276/SIRT4 axis.
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Copy and paste a formatted citation
Spandidos Publications style
Xu L, Xu K, Xiang L and Yan J: Circular RNA OMA1 regulates the progression of breast cancer via modulation of the miR‑1276/SIRT4 axis. Mol Med Rep 24: 728, 2021.
APA
Xu, L., Xu, K., Xiang, L., & Yan, J. (2021). Circular RNA OMA1 regulates the progression of breast cancer via modulation of the miR‑1276/SIRT4 axis. Molecular Medicine Reports, 24, 728. https://doi.org/10.3892/mmr.2021.12367
MLA
Xu, L., Xu, K., Xiang, L., Yan, J."Circular RNA OMA1 regulates the progression of breast cancer via modulation of the miR‑1276/SIRT4 axis". Molecular Medicine Reports 24.4 (2021): 728.
Chicago
Xu, L., Xu, K., Xiang, L., Yan, J."Circular RNA OMA1 regulates the progression of breast cancer via modulation of the miR‑1276/SIRT4 axis". Molecular Medicine Reports 24, no. 4 (2021): 728. https://doi.org/10.3892/mmr.2021.12367
Copy and paste a formatted citation
x
Spandidos Publications style
Xu L, Xu K, Xiang L and Yan J: Circular RNA OMA1 regulates the progression of breast cancer via modulation of the miR‑1276/SIRT4 axis. Mol Med Rep 24: 728, 2021.
APA
Xu, L., Xu, K., Xiang, L., & Yan, J. (2021). Circular RNA OMA1 regulates the progression of breast cancer via modulation of the miR‑1276/SIRT4 axis. Molecular Medicine Reports, 24, 728. https://doi.org/10.3892/mmr.2021.12367
MLA
Xu, L., Xu, K., Xiang, L., Yan, J."Circular RNA OMA1 regulates the progression of breast cancer via modulation of the miR‑1276/SIRT4 axis". Molecular Medicine Reports 24.4 (2021): 728.
Chicago
Xu, L., Xu, K., Xiang, L., Yan, J."Circular RNA OMA1 regulates the progression of breast cancer via modulation of the miR‑1276/SIRT4 axis". Molecular Medicine Reports 24, no. 4 (2021): 728. https://doi.org/10.3892/mmr.2021.12367
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