Skip to main content
Log in

MiR-337-3p confers protective effect on facet joint osteoarthritis by targeting SKP2 to inhibit DUSP1 ubiquitination and inactivate MAPK pathway

  • Original Article
  • Published:
Cell Biology and Toxicology Aims and scope Submit manuscript

Abstract

Objective

To probe the performance of miR-337-3p on the facet joint osteoarthritis (FJOA) and its underlying mechanism.

Methods

qRT-PCR and Western blot were utilized to analyze the levels of miR-337-3p and DUSP1 in the synovial tissues from 36 FJOA patients and 10 healthy controls. The human synovial fibroblasts of FJOA were isolated and cultured followed by cell transfection. Then, cells were exposed to 10 ng/mL of IL-1β to induce inflammatory response of synovial fibroblasts. The alternation on cell biological function in cell models was determined. The binding of miR-337-3p and SKP2 was predicted by StarBase, TargetScan, DIANA-microT and miRmap, and further verified by RIP assay and dual-luciferase reporter assay. Co-IP experiment and ubiquitination assay were used to display the binding of SKP2 and DUSP1 as well as the ubiquitination and degradation of DUSP1. After that, the FJOA rat model was established and miR-337-3p mimic or negative control was given to rats by tail vein injection. The pathological changes of synovial tissues, synovitis score, and inflammation level in rats were assessed.

Results

The low expressions of miR-337-3p and DUSP1 were noticed in the synovial tissues of FJOA patients and in IL-1β-induced synovial fibroblasts, and highly expressed p-p38 MAPK was noticed. Upregulation of miR-337-3p/DUSP1 or downregulation of SKP2 inhibited IL-1β-induced proliferation and inflammatory response of synovial fibroblasts. SKP2 was the target gene of miR-337-3p, and SKP2 induced the ubiquitination and degradation of DUSP1. MiR-337-3p exerted a protective effect on FJOA rats by alleviating damage of rat synovial tissues, promoting cell apoptosis and repressing inflammatory response.

Conclusion

MiR-337-3p plays a protective role in FJOA by negatively targeting SKP2 to suppress DUSP1 ubiquitination and inactivate the p38 MAPK pathway.

Graphical abstract

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
Fig. 6
Fig. 7
Fig. 8
Fig. 9

Similar content being viewed by others

Data availability

The datasets used or analyzed during the current study are available from the corresponding author on reasonable request.

Abbreviations

FJOA:

facet joint osteoarthritis

OA:

osteoarthritis

miRNAs:

microRNAs

Co-IP:

co-immunoprecipitation

Ni-NTA:

Ni-nitrilotriacetic acid

H&E:

hematoxylin and eosin

SD:

standard deviation

References

Download references

Acknowledgements

Thanks to all the participants and contributors.

Funding

This research was funded by the grant from the Natural Science Foundation of Guangdong Province (Grant No. 2018A0303130183).

Author information

Authors and Affiliations

Authors

Contributions

X.Z. Zhou and S.S. Jian conceived the ideas. X.Z. Zhou and S.S. Jian designed the experiments. D.X. Luo, Y.Y. Wang, and W.Y. Xu performed the experiments. S.S. Jian and H. Zhang analyzed the data. L. Zhang and S.S. Jian provided critical materials. D.X. Luo and Y.Y. Wang wrote the manuscript. X.Z. Zhou supervised the study. All the authors have read and approved the final version for publication.

Corresponding author

Correspondence to Xiaozhong Zhou.

Ethics declarations

Ethics approval and consent to participate

The experimental etiquettes were carried out after approval and in accordance with the guidelines set by the Ethics Committee of the Guangdong Second Provincial General Hospital, and all the patients provided their written informed consent. The study was performed based on the Declaration of Helsinki. All of the experiments involving animals were in accordance with the Guide for the Care and Use of Laboratory Animals (National Institutes of Health), and the experimental scheme was authorized by the Committee of Experimental Animals of Guangdong Second Provincial General Hospital. All surgery was performed aseptically and every attempt was made to minimize animal suffering.

Consent for publication

All of the authors have approved the publication of the article.

Competing interests

The authors declare no competing interests.

Additional information

Publisher’s note

Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Jian, S., Luo, D., Wang, Y. et al. MiR-337-3p confers protective effect on facet joint osteoarthritis by targeting SKP2 to inhibit DUSP1 ubiquitination and inactivate MAPK pathway. Cell Biol Toxicol 39, 1099–1118 (2023). https://doi.org/10.1007/s10565-021-09665-2

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s10565-021-09665-2

Keywords

Navigation