Mir155 regulates osteogenesis and bone mass phenotype via targeting S1pr1 gene
- Affiliated Stomatology Hospital of Guangzhou Medical University, China
- First Affiliated Hospital of Guangzhou Medical University, China
- Southern Medical University, China
- Vrije Universiteit Amsterdam, Netherlands
Abstract
MicroRNA-155 (miR155) is overexpressed in various inflammatory diseases and cancer, in which bone resorption and osteolysis are frequently observed. However, the role of miR155 on osteogenesis and bone mass phenotype is still unknown. Here, we report a low bone mass phenotype in the long bone of Mir155-Tg mice compared with wild-type mice. In contrast, Mir155-KO mice showed a high bone mass phenotype and protective effect against inflammation-induced bone loss. Mir155-KO mice showed robust bone regeneration in the ectopic and orthotopic model, but Mir155-Tg mice showed compromised bone regeneration compared with the wild-type mice. Similarly, the osteogenic differentiation potential of bone marrow stromal stem cells (BMSCs) from Mir155-KO mice was robust and Mir155-Tg was compromised compared with that of wild-type mice. Moreover, Mir155 knockdown in BMSCs from wild-type mice showed higher osteogenic differentiation potential, supporting the results from Mir155-KO mice. TargetScan analysis predicted S1pr1 as a target gene of Mir155, which was further confirmed by luciferase assay and Mir155 knockdown. S1pr1 overexpression in BMSCs robustly promoted osteogenic differentiation without affecting cell viability and proliferation. Furthermore, osteoclastogenic differentiation of Mir155-Tg bone marrow-derived macrophages was inhibited compared with that of wild-type mice. Thus, Mir155 showed a catabolic effect on osteogenesis and bone mass phenotype via interaction with the S1pr1 gene, suggesting inhibition of Mir155 as a potential strategy for bone regeneration and bone defect healing.
Data availability
Source data files have been provided as Figure 1 source data-1, Figure 2 source data-2, Figure 3 source data-3, Figure 4 source data-4, Figure 5 source data-5, Figure 6 source data-6, Figure 7 source data-7, Figure 8 source data-8, Figure 9 source data-9, Figure S1 source data-S1.
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Author details
Funding
The Science and Techonolgoy program of Guangzhou (202201010073)
- Lihong Wu
The Science and Technology program of Guangzhou (202201020116)
- Zhichao Zheng
The National Natural Science Foundation of China (U22A20159)
- Lihong Wu
The National Natural Science Foundation of China (82150410451)
- Janak L. Pathak
The General Guiding Project of Guangzhou (20201A011105)
- Zhichao Zheng
The Medical Scientific Research Foundation of Guangdong Province (B2020027)
- Zhichao Zheng
The Undergraduate Science and Technology Innovation Project of Guangzhou Medical University (2020A049)
- Ruoshu Tang
The High-level University Construction Founding of Guangzhou Medical University (02-412-B205002-1003017,06-410-2106035)
- Janak L. Pathak
The funders had no role in study design, data collection and interpretation, or the decision to submit the work for publication.
Ethics
Animal experimentation: The animal experiment was conducted in accordance with the guidelines approved by the Institutional Animal Care and Use Committee of the First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China (2017-078).
Copyright
© 2023, Zheng et al.
This article is distributed under the terms of the Creative Commons Attribution License permitting unrestricted use and redistribution provided that the original author and source are credited.
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Mir155 regulates osteogenesis and bone mass phenotype via targeting S1pr1 gene
eLife 12:e77742.
https://doi.org/10.7554/eLife.77742
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