A potential role of Semaphorin 3A during orthodontic tooth movement
Background: Induced tooth movement during orthodontic therapy requires mechano-induced bone remodeling. Besides various cytokines and growth-factors, neuronal guidance molecules gained attention for their roles in bone homeostasis and thus, potential roles during tooth movement. Several neuronal gui...
Gespeichert in:
| Hauptverfasser: | , , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
2 August 2021
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| In: |
International journal of molecular sciences
Year: 2021, Jahrgang: 22, Heft: 15, Pages: 1-17 |
| ISSN: | 1422-0067 |
| DOI: | 10.3390/ijms22158297 |
| Online-Zugang: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.3390/ijms22158297 Verlag, lizenzpflichtig, Volltext: https://www.mdpi.com/1422-0067/22/15/8297 
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| Verfasserangaben: | Sinan Şen, Christopher J. Lux and Ralf Erber |
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| 520 | |a Background: Induced tooth movement during orthodontic therapy requires mechano-induced bone remodeling. Besides various cytokines and growth-factors, neuronal guidance molecules gained attention for their roles in bone homeostasis and thus, potential roles during tooth movement. Several neuronal guidance molecules have been implicated in the regulation of bone remodeling. Amongst them, Semaphorin 3A is particular interesting as it concurrently induces osteoblast differentiation and disturbs osteoclast differentiation. Methods: Mechano-regulation of Sema3A and its receptors PlexinA1 and Neuropilin (RT-qPCR, WB) was evaluated by applying compressive and tension forces to primary human periodontal fibroblasts (hPDLF) and alveolar bone osteoblasts (hOB). The association of the transcription factor Osterix (SP7) and SEMA3A was studied by RT-qPCR. Mechanisms involved in SEMA3A-mediated osteoblast differentiation were assessed by Rac1GTPase pull-downs, β-catenin expression analyses (RT-qPCR) and nuclear translocation assays (IF). Osteogenic markers were analyzed by RT-qPCR. Results: SEMA3A, PLXNA1 and NRP1 were differentially regulated by tension or compressive forces in hPDLF. Osterix (SP7) displayed the same pattern of regulation. Recombinant Sema3A induced the activation of Rac1GTPase, the nuclear translocation of β-catenin and the expression of osteogenic marker genes. Conclusion: Sema3A, its receptors and Osterix are regulated by mechanical forces in hPDLF. SEMA3A upregulation was associated with Osterix (SP7) modulation. Sema3A-enhanced osteogenic marker gene expression in hOB might be dependent on a pathway involving Rac1GTPase and β-catenin. Thus, Semaphorin 3A might contribute to bone remodeling during induced tooth movement. | ||
| 650 | 4 | |a bone remodeling | |
| 650 | 4 | |a mechanotransduction | |
| 650 | 4 | |a neuronal guidance molecules | |
| 650 | 4 | |a Semaphorins | |
| 650 | 4 | |a tooth movement | |
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| 700 | 1 | |a Erber, Ralf |d 1967- |e VerfasserIn |0 (DE-588)136076572 |0 (DE-627)69405433X |0 (DE-576)285643452 |4 aut | |
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