Article Publish Status: FREE
Abstract Title:

Saponin Promotes Bone Regeneration in Distraction Osteogenesis via the TGF-1 Signaling Pathway.

Abstract Source:

Evid Based Complement Alternat Med. 2021 ;2021:2895659. Epub 2021 Oct 21. PMID: 34721625

Abstract Author(s):

Di Liu, Zhenchen Zhao, Weidong Jiang, Peiqi Zhu, Xiaoning An, Yu Xie, Xuanping Huang, Nuo Zhou

Article Affiliation:

Di Liu


Distraction osteogenesis (DO) is an efficient strategy that is employed for the treatment of large bone defects in craniomaxillofacial surgery. Despite its utility, however, DO is associated with a prolonged consolidation phase and a high complication rate that hinder its more widespread utilization.(PNS) is a traditional Chinese medicine that is frequently administered for the treatment of a range of conditions. Herein, we explored the ability of PNS treatment to influence osteogenic differentiation using both rabbit bone marrow mesenchymal cells (BMSCs) and a model of mandibular DO. BMSC proliferation was assessed via CCK-8 assay, while osteogenic differentiation was monitored through ALP and alizarin red S staining. A PCR approach was used to evaluate the expression of genes associated with osteogenesis (ALP, Runx2, and OCN) and genes linked to the TGF pathway (TR-II, SMAD2, SMAD3, and PPM1A). Forexperiments, treated BMSCs were locally injected into the DO gap, with PNS being injected into treated rabbits every other day throughout the experimental period. The quality of the regenerative process was assessedscanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), X-ray imaging, and hematoxylin and eosin (H&E) staining. These analyses revealed that PNS was able to promote BMSC osteogenesis and mandibular generation, driving the upregulation of osteogenesis-related genes at the mRNA levels through the modulation of the TGF-1/Smad pathway. Consistently, the overexpression or silencing of TR-II in PNS-treated BMSCs was sufficient to modulate their osteogenic potential. Analyses ofmandibular DO outcomes revealed significantly augmented new bone growth in the PNS-treated group relative to control animals, with maximal osteogenesis in the group overexpressing rabbit TR-II. Together, these results highlight the PNS as a promising and cost-effective therapeutic tool with the potential to enhance bone regeneration in clinical contexts through the modulation of the TGF-1/Smad pathway.

Study Type : Animal Study, In Vitro Study

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Sayer Ji
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