Open Access

circKL inhibits the growth and metastasis of kidney cancer by sponging miR‑182‑5p and upregulating FBXW7

  • Authors:
    • Juan Cao
    • Uet Yu
    • Li Li
    • Xiuli Yuan
    • Senmin Chen
    • Huanli Xu
    • Meng Yi
    • Sixi Liu
  • View Affiliations

  • Published online on: February 17, 2022     https://doi.org/10.3892/or.2022.8286
  • Article Number: 75
  • Copyright: © Cao et al. This is an open access article distributed under the terms of Creative Commons Attribution License.

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Abstract

Circular RNAs (circRNAs) are a type of non‑coding RNA with important roles in the regulation of various biological processes involved in malignant progression. However, the potential molecular mechanisms and roles of circRNAs in kidney cancer have remained to be fully elucidated. In a previous study by our group, high‑throughput microarray sequencing data were analyzed to determine the differentially expressed circRNAs in kidney cancer. In this analysis, a novel circRNA (hsa_circ_0100312, named circKL) was identified as a frequently downregulated circRNA in kidney cancer cells and tissues by reverse transcription‑quantitative PCR. In the present study, Cell Counting Kit‑8, colony formation, Transwell, wound‑healing and mouse xenograft assays as well as a lung metastasis experiment were performed to confirm the functions of circKL. The experiments confirmed that circKL overexpression significantly inhibited the proliferation, migration, tumor growth and metastasis of kidney cancer both in vitro and in vivo. The potential molecular mechanisms of circKL were investigated by performing dual‑luciferase and RNA immunoprecipitation assays. Western blot assays confirmed that overexpression of circKL significantly increased the protein level of F‑box and WD repeat domain containing 7 (FBXW7). All results suggested that circKL suppressed the growth and migration of kidney cancer by sponging microRNA (miR)‑182‑5p and upregulating FBXW7 expression. Overall, the circKL/miR‑182‑5p/FBXW7 axis was indicated to have a key role in the growth and metastasis of kidney cancer and may be targeted as a novel therapeutic strategy.
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April-2022
Volume 47 Issue 4

Print ISSN: 1021-335X
Online ISSN:1791-2431

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Spandidos Publications style
Cao J, Yu U, Li L, Yuan X, Chen S, Xu H, Yi M and Liu S: circKL inhibits the growth and metastasis of kidney cancer by sponging miR‑182‑5p and upregulating FBXW7. Oncol Rep 47: 75, 2022.
APA
Cao, J., Yu, U., Li, L., Yuan, X., Chen, S., Xu, H. ... Liu, S. (2022). circKL inhibits the growth and metastasis of kidney cancer by sponging miR‑182‑5p and upregulating FBXW7. Oncology Reports, 47, 75. https://doi.org/10.3892/or.2022.8286
MLA
Cao, J., Yu, U., Li, L., Yuan, X., Chen, S., Xu, H., Yi, M., Liu, S."circKL inhibits the growth and metastasis of kidney cancer by sponging miR‑182‑5p and upregulating FBXW7". Oncology Reports 47.4 (2022): 75.
Chicago
Cao, J., Yu, U., Li, L., Yuan, X., Chen, S., Xu, H., Yi, M., Liu, S."circKL inhibits the growth and metastasis of kidney cancer by sponging miR‑182‑5p and upregulating FBXW7". Oncology Reports 47, no. 4 (2022): 75. https://doi.org/10.3892/or.2022.8286