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MicroRNA 452 regulates ASB8, NOL8, and CDR2 expression in colorectal cancer cells

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Abstract

Background

MicroRNAs play important roles in the pathogenesis of human diseases by regulating target gene expression in specific cells or tissues. Previously, we identified microRNA 452 (MIR452), which was specifically up-regulated in early stage human colorectal cancer (CRC) tissue.

Objective

The current study aims to identify and verify the target genes of MIR452 associated with CRC.

Methods

A luciferase reporter system was used to confirm the effect of MIR452 on ASB8, NOL8, and CDR2 expression. The expression levels of MIR452 and the target genes were evaluated by quantitative RT-PCR (qRT-PCR) and western blotting.

Results

We verified the association between MIR452 and three genes, ASB8, NOL8, and CDR2, and showed that their transcripts were down-regulated by MIR452. Up-regulated MIR452 also down-regulated ASB8, NOL8, and CDR2 mRNA and protein levels in CRC cells. CDR2 protein expression was decreased in CRC tissues compared to adjacent non-tumor tissues.

Conclusions

These results suggest that ASB8, NOL8, and CDR2 were target genes of MIR452 in CRC cells and that up-regulated MIR452 in CRC tissue regulated ASB8, NOL8, and CDR2 expression during colorectal carcinogenesis.

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Data availability

All data generated or analyzed during this study are included in this published article.

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Acknowledgements

The biospecimens for this study were provided by the Biobank of Wonkwang University Hospital, a member of the National Biobank of Korea, which is supported by the Ministry of Health and Welfare. This research was supported by Wonkwang University in 2018.

Funding

This research was supported by Wonkwang University in 2018.

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Authors and Affiliations

Authors

Contributions

J-S Mo performed the experiments and analyzed the data, and S-C Chae conceived, designed the experiments, analyzed the data and wrote the manuscript.

Corresponding author

Correspondence to Soo-Cheon Chae.

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Conflict of interest

Ji-Su Mo and Soo-Cheon Chae declare that they have no conflicts of interests.

Ethics approval

The study (WKIRB-201703-BR-010) was reviewed and approved by the review board of Wonkwang University, Republic of Korea. This study did not use animal's subjects.

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Mo, JS., Chae, SC. MicroRNA 452 regulates ASB8, NOL8, and CDR2 expression in colorectal cancer cells. Genes Genom 43, 33–41 (2021). https://doi.org/10.1007/s13258-020-01016-5

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  • DOI: https://doi.org/10.1007/s13258-020-01016-5

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