miR-145-5p suppresses osteogenic differentiation of adipose-derived stem cells by targeting semaphorin 3A

  • Xiangdong Liu
  • Wenzhong Zhu
  • Lei Wang
  • Jin Wu
  • Feng Ding
  • Yingliang SongEmail author


Adipose-derived stem cells (ADSCs) provide a novel method for bone tissue regeneration, but their adipogenic tendency limits their therapeutic efficacy. MicroRNAs (miRNAs) have been reported to regulate stem cell differentiation and bone tissue regeneration, but the detailed mechanism is poorly investigated. Our study indicated that inhibition of miR-145-5p enhanced the osteogenic potential of ADSCs and reduced the adipogenic differentiation. Osteogenesis- and adipogenesis-associated genes were detected by qRT-PCR indicating a corresponding result. Moreover, semaphorin 3A (sema3A) was found to be a target of miR-145-5p, as confirmed by a luciferase activity assay, qRT-PCR, and western blotting. Inhibition of miR-145-5p promoted migration, as detected by wound healing and Transwell assays, but did not affect proliferation, as detected by CCK-8 and ki-67 assays. The effects of miR-145-5p inhibitors on ADSC progression rescued by siRNA of Sema3a and si-sema3a exerted the same effect as miR-145-5p inhibitors on ADSC progression. Furthermore, siRNA of Sema3a rescued synergistic effects with miR-145-5p inhibitors in ADSCs. qRT-PCR and immunofluorescence assays showed that miR-145-5p activated the Wnt signaling pathway for osteogenic differentiation. In conclusion, miR-145-5p and sema3a represent new targets for improving the osteogenic capacity of ADSCs.


Adipose-derived stem cells Semaphorin 3A microRNA-145-5p 



This study was funded by the Natural Science Foundation of China (NSFC) Nos. 81470775 and 81771107.

Compliance with ethical standards

Conflict of interest

The authors declare that they have no conflict of interest.

Supplementary material

11626_2019_318_MOESM1_ESM.docx (283 kb)
ESM 1 (DOCX 283 kb)


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Copyright information

© The Society for In Vitro Biology 2019

Authors and Affiliations

  • Xiangdong Liu
    • 1
  • Wenzhong Zhu
    • 2
  • Lei Wang
    • 1
  • Jin Wu
    • 3
  • Feng Ding
    • 1
  • Yingliang Song
    • 1
    Email author
  1. 1.State Key Laboratory of Military Stomatology and National Clinical Research Center for Oral Diseases and Shaanxi Engineering Research Center for Dental Materials and Advanced Manufacture, Department of Implant Dentistry, School of StomatologyThe Fourth Military Medical UniversityXi’anChina
  2. 2.Department of StomatologySecond People’s Hospital of Shaanxi ProvinceXi’anChina
  3. 3.Dalian Medical UniversityDalianChina

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