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Magnesium Phosphate Ceramics Incorporating a Novel Indene Compound Promote Osteoblast Differentiation in Vitro and Bone Regeneration in Vivo

Magnesium Phosphate Ceramics Incorporating a Novel Indene Compound Promote Osteoblast Differentiation in Vitro and Bone Regeneration in Vivo

Ju Ang Kim, Hui-Suk Yun, Young-Ae Choi, Jung-Eun Kim, So-Young Choi, Tae-Geon Kwon, Young Kyung Kim, Tae-Yub Kwon, Myung Ae Bae, Nak Jeong Kim, Yong Chul Bae, Hong-In Shin, Eui Kyun Park

Biomaterials. 2018 Mar;157:51-61.

PMID: 29245051

Abstract:

Incorporating bioactive molecules into synthetic ceramic scaffolds is challenging. In this study, to enhance bone regeneration, a magnesium phosphate (MgP) ceramic scaffold was incorporated with a novel indene compound, KR-34893. KR-34893 induced the deposition of minerals and expression of osteoblast marker genes in primary human bone marrow mesenchymal stem cells (BMSCs) and a mouse osteoblastic MC3T3-E1 cell line. Analysis of the mode of action showed that KR-34893 induced the phosphorylation of MAPK/extracellular signal-regulated kinase and extracellular signal-regulated kinase, and subsequently the expression of bone morphogenetic protein 7, accompanied by SMAD1/5/8 phosphorylation. Accordingly, KR-34893 was incorporated into an MgP scaffold prepared by 3D printing at room temperature, followed by cement reaction. KR-34893-incorporated MgP (KR-MgP) induced the expression of osteoblast differentiation marker genes in vitro. In a rat calvaria defect model, KR-MgP scaffolds enhanced bone regeneration and increased bone volume compared with MgP scaffolds, as assessed by micro-computed tomography and histological analyses. In conclusion, we developed a method for producing osteoinductive MgP scaffolds incorporating a bioactive organic compound, without high temperature sintering. The KR-MgP scaffolds enhanced osteoblast activation in vitro and bone regeneration in vivo.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP10233871	Magnesium phosphate		10233-87-1	Price

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