Open Access

Otubain 2 stabilizes TNF‑receptor associated factor 3 to accelerate bone fracture healing

  • Authors:
    • Li Zhang
    • Jialiang Guo
    • Shan Feng
    • Yue Zheng
    • Haixu Wang
    • Huijie Ma
    • Wei Chen
    • Yingze Zhang
    • Zhiyong Hou
  • View Affiliations

  • Published online on: June 5, 2025     https://doi.org/10.3892/mmr.2025.13588
  • Article Number: 223
  • Copyright: © Zhang et al. This is an open access article distributed under the terms of Creative Commons Attribution License [CC BY_NC 4.0].

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Abstract

Increased incidence of traumatic fracture markedly effects the quality of life of patients. Using a rat model of femur fracture, the present study aimed to investigate the effects of otubain 2 (OTUB2), a deubiquitinating enzyme, on bone fracture healing. Bone marrow mesenchymal stem cells (BMSCs) were harvested from the marrow cavity of rat femurs and tibiae and subsequently subjected to osteogenic differentiation in vitro. Results of the present study revealed that lentivirus‑mediated OTUB2 overexpression accelerated rat bone fracture healing, potentiated fracture callus formation and cartilaginous ossification and regulated the expression of proteins associated with bone remodeling. In addition, OTUB2 overexpression facilitated the osteogenic differentiation and mineralization of BMSCs and promoted the expression of TNF‑receptor associated factor 3 (TRAF3) both in vivo and in vitro. Co‑immunoprecipitation analysis was used to verify the physical interaction between OTUB2 and TRAF3 and further results demonstrated that OTUB2 reduced the ubiquitination of TRAF3. The results of the present study also demonstrated that TRAF3 knockdown repressed the OTUB2‑induced osteogenic differentiation and mineralization of BMSCs. Collectively, these results demonstrated that OTUB2 may stabilize TRAF3 to accelerate bone fracture healing.
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August-2025
Volume 32 Issue 2

Print ISSN: 1791-2997
Online ISSN:1791-3004

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Spandidos Publications style
Zhang L, Guo J, Feng S, Zheng Y, Wang H, Ma H, Chen W, Zhang Y and Hou Z: Otubain 2 stabilizes TNF‑receptor associated factor 3 to accelerate bone fracture healing. Mol Med Rep 32: 223, 2025.
APA
Zhang, L., Guo, J., Feng, S., Zheng, Y., Wang, H., Ma, H. ... Hou, Z. (2025). Otubain 2 stabilizes TNF‑receptor associated factor 3 to accelerate bone fracture healing. Molecular Medicine Reports, 32, 223. https://doi.org/10.3892/mmr.2025.13588
MLA
Zhang, L., Guo, J., Feng, S., Zheng, Y., Wang, H., Ma, H., Chen, W., Zhang, Y., Hou, Z."Otubain 2 stabilizes TNF‑receptor associated factor 3 to accelerate bone fracture healing". Molecular Medicine Reports 32.2 (2025): 223.
Chicago
Zhang, L., Guo, J., Feng, S., Zheng, Y., Wang, H., Ma, H., Chen, W., Zhang, Y., Hou, Z."Otubain 2 stabilizes TNF‑receptor associated factor 3 to accelerate bone fracture healing". Molecular Medicine Reports 32, no. 2 (2025): 223. https://doi.org/10.3892/mmr.2025.13588