MicroRNA-296, a suppressor non-coding RNA, downregulates SGLT2 expression in lung cancer

  • Authors:
    • Xiaotian Zhang
    • Xinju Zhang
    • Xiaomin Liu
    • Pengfei Qi
    • Huimin Wang
    • Zhongliang Ma
    • Yimin Chai
  • View Affiliations

  • Published online on: October 19, 2018     https://doi.org/10.3892/ijo.2018.4599
  • Pages: 199-208
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Abstract

Non-small cell lung cancer (NSCLC) is one of the most common types of cancer worldwide and has the highest mortality rate in China. MicroRNAs (miRNAs or miRs) are involved in tumorigenesis and their important role in cancer is becoming increasingly apparent. The expression of miR‑296‑5p in particular has been shown to be significantly downregulated in lung cancer. Sodium-glucose co-transporter-2 [SGLT2, also known as solute carrier family 5 member 2 (SLC5A2)] is an oncogene that promotes tumorigenesis. In this study, we aimed to determine the role of miR‑296‑5p in lung cancer and whether this involves the targeting of SGLT2. For this purpose, we examined miR‑296‑5p and SGLT2 expression in human lung cancer samples and cell lines by RT-qPCR and western blot analysis. In addition, the data analysis website TCGA was used for survival analysis with respect to SGLT2 expression. The effects of miR‑296‑5p were also examined on cell proliferation and cell cycle progression using respective assays. The results demonstrate that miR‑296‑5p is significantly downregulated in NSCLC tissues. Additionally, it is demonstrated that SGLT2 is directly targeted by miR‑296‑5p. Furthermore, our data reveal that the knockdown of SGLT2 using siRNA inhibits cell proliferation and impedes cell cycle progression. Collectively, data suggest that miR‑296‑5p not only inhibits NSCLC by downregulating SGLT2 expression, but also acts as a novel regulator of aberrant lung cancer cells to limit lung cancer progression.
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January 2019
Volume 54 Issue 1

Print ISSN: 1019-6439
Online ISSN:1791-2423

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Copy and paste a formatted citation
APA
Zhang, X., Zhang, X., Liu, X., Qi, P., Wang, H., Ma, Z., & Chai, Y. (2019). MicroRNA-296, a suppressor non-coding RNA, downregulates SGLT2 expression in lung cancer. International Journal of Oncology, 54, 199-208. https://doi.org/10.3892/ijo.2018.4599
MLA
Zhang, X., Zhang, X., Liu, X., Qi, P., Wang, H., Ma, Z., Chai, Y."MicroRNA-296, a suppressor non-coding RNA, downregulates SGLT2 expression in lung cancer". International Journal of Oncology 54.1 (2019): 199-208.
Chicago
Zhang, X., Zhang, X., Liu, X., Qi, P., Wang, H., Ma, Z., Chai, Y."MicroRNA-296, a suppressor non-coding RNA, downregulates SGLT2 expression in lung cancer". International Journal of Oncology 54, no. 1 (2019): 199-208. https://doi.org/10.3892/ijo.2018.4599