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Hsa-miR-203 inhibits fracture healing via targeting PBOV1

S-Y Zhang1, F Gao, C-G Peng

  • 1Department of Orthopedics, The Second Hospital of Jilin University, Changchun, China. wuminfei999@163.com.

European Review for Medical and Pharmacological Sciences
|October 4, 2018
PubMed
Abstract

Insights

MicroRNA hsa-miR-203 inhibits fracture healing by affecting osteoblast viability and apoptosis. It targets PBOV1, impacting bone repair mechanisms.

Area of Science:

  • Molecular Biology
  • Biochemistry
  • Orthopedics

Background:

  • Fracture healing is a complex biological process involving cellular proliferation, differentiation, and matrix deposition.
  • MicroRNAs (miRNAs) play crucial roles in regulating gene expression and have emerged as important factors in bone regeneration.
  • Understanding the specific roles of miRNAs in fracture healing can provide novel therapeutic targets.

Purpose of the Study:

  • To investigate the role of hsa-miR-203 in the process of fracture healing.
  • To elucidate the underlying molecular mechanism by which hsa-miR-203 influences bone repair.
  • To identify the target gene of hsa-miR-203 involved in osteoblast function.

Main Methods:

  • Quantitative Real-Time-Polymerase Chain Reaction (qRT-PCR) to measure hsa-miR-203 and PBOV1 expression in fracture patients.
  • Cell counting kit-8 (CCK-8) assay and flow cytometry to assess osteoblast viability and apoptosis.
  • Bioinformatics prediction and dual-luciferase reporter gene assay to validate PBOV1 as the target gene of hsa-miR-203.
  • Rescue experiments involving PBOV1 knockdown to confirm the regulatory pathway.

Main Results:

  • hsa-miR-203 expression was upregulated in patients with hand and intra-articular fractures by day 14 post-treatment.
  • PBOV1 expression showed a gradual decrease with prolonged treatment time.
  • Overexpression of hsa-miR-203 reduced osteoblast viability and induced apoptosis, effects reversed by PBOV1 knockdown.
  • PBOV1 was confirmed as a direct target gene of hsa-miR-203.

Conclusions:

  • Hsa-miR-203 plays an inhibitory role in fracture healing.
  • The mechanism involves the regulation of osteoblast viability and apoptosis through targeting PBOV1.
  • Hsa-miR-203-PBOV1 axis represents a potential therapeutic target for enhancing fracture repair.

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