Open Access

MicroRNA‑100‑5p inhibits osteoclastogenesis and bone resorption by regulating fibroblast growth factor 21

  • Authors:
    • Long Zhou
    • Han‑Yi Song
    • Lin‑Lin Gao
    • Li‑Yu Yang
    • Shuai Mu
    • Qin Fu
  • View Affiliations

  • Published online on: December 6, 2018     https://doi.org/10.3892/ijmm.2018.4017
  • Pages: 727-738
  • Copyright: © Zhou et al. This is an open access article distributed under the terms of Creative Commons Attribution License.

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Abstract

MicroRNAs (miRNAs/miRs) are post‑transcriptional regulators that serve important roles in osteoclastogenesis and bone metabolism; however, the roles of miRNAs have not been completely clarified. The present study aimed to investigate the effects of miR‑100‑5p on the mechanism of liver‑bone endocrine metabolism. A miRNA microarray analysis was conducted to evaluate the miRNA expression profile during receptor activator of nuclear factor‑κB ligand‑stimulated osteoclastogenesis. Hematoxylin and eosin and tartrate‑resistant acid phosphatase staining were performed to analyze the trabecular bone microstructure and osteoclast differentiation. The mRNA and protein expression levels were assessed by reverse transcription‑quantitative polymerase chain reaction and western blotting, respectively. The results revealed that in vitro osteoclast differentiation and in vivo bone resorption were suppressed by miR‑100‑5p overexpression. In vivo, a decrease in miR‑100‑5p and an increase in FGF21 were simultaneously observed in mice following ovariectomy (OVX). Bioinformatics analysis and experimental data confirmed that FGF21 was a direct target of miR‑100‑5p. Conversely, augmentation of miR‑100‑5p using a specific agomir in OVX‑operated mice decreased the levels of FGF21 in the serum and liver, and prevented osteoclastogenesis and bone loss. The present study revealed that FGF21 may be a signal molecule associated with the mechanism of liver‑bone endocrine metabolism and may be targeted by miR‑100‑5p. In addition, miR‑100‑5p may serve an important role in protecting against OVX‑induced osteoporosis.
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February-2019
Volume 43 Issue 2

Print ISSN: 1107-3756
Online ISSN:1791-244X

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Spandidos Publications style
Zhou L, Song HY, Gao LL, Yang LY, Mu S and Fu Q: MicroRNA‑100‑5p inhibits osteoclastogenesis and bone resorption by regulating fibroblast growth factor 21. Int J Mol Med 43: 727-738, 2019.
APA
Zhou, L., Song, H., Gao, L., Yang, L., Mu, S., & Fu, Q. (2019). MicroRNA‑100‑5p inhibits osteoclastogenesis and bone resorption by regulating fibroblast growth factor 21. International Journal of Molecular Medicine, 43, 727-738. https://doi.org/10.3892/ijmm.2018.4017
MLA
Zhou, L., Song, H., Gao, L., Yang, L., Mu, S., Fu, Q."MicroRNA‑100‑5p inhibits osteoclastogenesis and bone resorption by regulating fibroblast growth factor 21". International Journal of Molecular Medicine 43.2 (2019): 727-738.
Chicago
Zhou, L., Song, H., Gao, L., Yang, L., Mu, S., Fu, Q."MicroRNA‑100‑5p inhibits osteoclastogenesis and bone resorption by regulating fibroblast growth factor 21". International Journal of Molecular Medicine 43, no. 2 (2019): 727-738. https://doi.org/10.3892/ijmm.2018.4017