Frontiers in Endocrinology (Oct 2020)

A Comprehensive Analysis of MicroRNAs in Human Osteoporosis

  • Ying Huai,
  • Ying Huai,
  • Ying Huai,
  • Wenjuan Zhang,
  • Wenjuan Zhang,
  • Wenjuan Zhang,
  • Zhihao Chen,
  • Zhihao Chen,
  • Zhihao Chen,
  • Fan Zhao,
  • Fan Zhao,
  • Fan Zhao,
  • Wei Wang,
  • Wei Wang,
  • Wei Wang,
  • Kai Dang,
  • Kai Dang,
  • Kai Dang,
  • Kaiyue Xue,
  • Kaiyue Xue,
  • Kaiyue Xue,
  • Yongguang Gao,
  • Yongguang Gao,
  • Yongguang Gao,
  • Shanfeng Jiang,
  • Shanfeng Jiang,
  • Shanfeng Jiang,
  • Zhiping Miao,
  • Zhiping Miao,
  • Zhiping Miao,
  • Meng Li,
  • Qiang Hao,
  • Chu Chen,
  • Airong Qian,
  • Airong Qian,
  • Airong Qian

DOI
https://doi.org/10.3389/fendo.2020.516213
Journal volume & issue
Vol. 11

Abstract

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MicroRNAs (miRNAs) are single-stranded RNA molecules that control gene expression in various processes, such as cancers, Alzheimer’s disease, and bone metabolic diseases. However, the regulatory roles of miRNAs in osteoporosis have not been systematically analyzed. Here, we performed a comprehensive analysis to identify the differentially expressed miRNAs involved in osteoporosis. MiRNAs associated with osteoporosis were collected through literature retrieval and further screened based on specific inclusion and exclusion criteria. The osteoporosis therapeutic targets of miRNAs were obtained by the integration of miRWalk 3.0 database and five human disease therapeutic target databases. Then, the network analysis and functional enrichment analysis of miRNAs and their targets were performed. As a result, 11 eligible miRNAs were identified highly associated with osteoporosis. MiRNA-mRNA network demonstrated there were the complex mutual interactions between miRNAs and their targets. Besides, ADRB2, AR, ESR1, FGFR1, TRAF6, etc., were identified as the top hub genes in protein-protein interaction (PPI) network. Functional enrichment analysis revealed that miRNAs and their targets were mainly mapped on processes associated with bone and immune system, such as bone remolding, bone mineralization, PI3K/AKt, TNF signaling pathways and Th17 cell differentiation. RT-PCR results showed that the expression of miR-335-3p was significantly down-regulated in hind limb unloading (HLU) mice tibia samples compared with controls, the remaining 10 miRNAs were significantly up-regulated after HLU (P < 0.01). In summary, we identified 11 differentially expressed miRNAs and their hub target genes in osteoporosis, which may be novel diagnostic biomarkers for osteoporosis.

Keywords