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Erschienen in: Journal of Bone and Mineral Metabolism 3/2017

16.04.2016 | Original Article

MiR-142-5p promotes bone repair by maintaining osteoblast activity

verfasst von: Manli Tu, Juanjuan Tang, Hongbo He, Peng Cheng, Chao Chen

Erschienen in: Journal of Bone and Mineral Metabolism | Ausgabe 3/2017

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Abstract

MicroRNAs play important roles in regulating bone regeneration and remodeling. However, the pathophysiological roles of microRNAs in bone repair remain unclear. Here we identify a significant upregulation of miR-142-5p correlated with active osteoblastogenesis during the bone healing process. In vitro, miR-142-5p promoted osteoblast activity and matrix mineralization by targeting the gene encoding WW-domain-containing E3 ubiquitin protein ligase 1. We also found that the expression of miR-142-5p in the callus of aged mice was lower than that in the callus of young mice and directly correlated with the age-related delay in bone healing. Furthermore, treatment with agomir-142-5p in the fracture areas stimulated osteoblast activity which repaired the bone fractures in aged mice. Thus, our study revealed that miR-142-5p plays a crucial role in healing fractures by maintaining osteoblast activity, and provided a new molecular target therapeutic strategy for bone healing.
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Metadaten
Titel
MiR-142-5p promotes bone repair by maintaining osteoblast activity
verfasst von
Manli Tu
Juanjuan Tang
Hongbo He
Peng Cheng
Chao Chen
Publikationsdatum
16.04.2016
Verlag
Springer Japan
Erschienen in
Journal of Bone and Mineral Metabolism / Ausgabe 3/2017
Print ISSN: 0914-8779
Elektronische ISSN: 1435-5604
DOI
https://doi.org/10.1007/s00774-016-0757-8

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