Evidence map›Paper›PMID 40050973›Full record

ArticleStem cell research & therapy2025

The local pulsatile parathyroid hormone delivery system induces the osteogenic differentiation of dental pulp mesenchymal stem cells to reconstruct mandibular defects.

Yuanyuan Jia, Mianmian Duan, Yan Yang, Duchenhui Li, Dongxiang Wang, Zhenglong Tang

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Article in Stem cell research & therapy, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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5 · Who and what money

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6 authors.

Yuanyuan Jia *Department of Oral and Maxillofacial Surgery, School and Hospital of Stomatology, Guizhou Medical University, Guiyang, 550000, China.ORCID http://orcid.org/0000-0002-8706-1281
Mianmian Duan *Department of Oral and Maxillofacial Surgery, School and Hospital of Stomatology, Guizhou Medical University, Guiyang, 550000, China.
Yan YangCenter for Tissue Engineering and Stem Cell Research, Guizhou Medical University, Guiyang, 550000, China.
Duchenhui LiDepartment of Oral and Maxillofacial Surgery, School and Hospital of Stomatology, Guizhou Medical University, Guiyang, 550000, China.
Dongxiang WangDepartment of Oral and Maxillofacial Surgery, School and Hospital of Stomatology, Guizhou Medical University, Guiyang, 550000, China.
Zhenglong TangDepartment of Oral and Maxillofacial Surgery, School and Hospital of Stomatology, Guizhou Medical University, Guiyang, 550000, China. 1985149363@qq.com.ORCID http://orcid.org/0000-0001-6309-0486

Funding

Science and Technology Program of Guizhou Province ZK [2023] Key 036
6 · The paper itself

Abstract

backgroundTumors and injuries often lead to large mandibular defects. Accelerating the osteogenesis of large bone defect areas is a major concern in current research. In this study, dental pulp mesenchymal stem cells (DPSCs) were used as seed cells, and the local pulsatile parathyroid hormone (PTH) delivery system was used as an osteogenic-inducing active ingredient to act on DPSCs and osteoblasts, which were applied to the jaw defect area to evaluate its therapeutic effect on bone regeneration.

methodsPulsatile delivery systems, both with and without PTH, were developed following the protocols outlined in our previous study. In vitro, the biocompatibility of the pulsatile delivery system with DPSCs was assessed using the Cell Counting Kit-8 (CCK8) assay and live/dead cell staining. Osteogenic differentiation was evaluated through alkaline phosphatase staining and alizarin red staining. In vivo, critical bone defects with a diameter of 10 mm were created in the mandibles of white rabbits. The osteogenic effect was further assessed through gross observation, X-ray imaging, and histological examination.

resultsIn vitro experiments using CCK8 assays and live/dead cell staining demonstrated that DPSCs successfully adhered to the surface of the PTH pulsatile delivery system, showing no significant difference compared to the control group. Furthermore, alkaline phosphatase staining and Alizarin Red staining confirmed that the localized pulsatile parathyroid hormone delivery system effectively induced the differentiation of DPSCs into osteoblasts, leading to the secretion of abundant calcium nodules. Animal studies further revealed that the PTH pulsatile delivery system promoted the osteogenic differentiation of DPSCs, facilitating the repair of critical mandibular bone defects.

conclusionThe rhythmic release of PTH from the pulsatile delivery system effectively induces the osteogenic differentiation of DPSCs. By leveraging the synergistic interaction between PTH and DPSCs, this approach facilitates the repair of extensive mandibular bone defects.

Indexed as

Cell DifferentiationDental PulpMandibleMesenchymal Stem CellsOsteogenesisParathyroid HormoneAnimalsBone RegenerationCells, CulturedHumansMaleOsteoblastsRabbitsParathyroid Hormone

Identifiers

PMID40050973
PMCPMC11887249

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