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  • Title: OIC-A006 promotes osteogenesis in vitro and in vivo.
    Author: Cai M, Liu X, Shao J, Qi J, Wang J, Zhu Y, Zhou Q, Wang J, Zhao Q, Li G, Liang J, Lu WW, Deng L.
    Journal: Pharmazie; 2008 Oct; 63(10):751-6. PubMed ID: 18972839.
    Abstract:
    Bone morphogenesis proteins (BMPs) are one of the potent bone-forming factors. However, the safety, utility, and cost effectiveness of BMPs must be considered. Nowadays, there has been substantial interest in developing a chemical compound that safely promotes bone formation and facilitates fracture repair. Based on previous research with high throughout screening assay, we found one potent osteogenic inductive compound, named as OIC-A006 (Osteogenic inducible compound-active 006), which is classified in the amine family. In this study, we aimed to investigate the inducing effects of OIC-A006 on osteogenesis by bone marrow stem cells (BMSCs) in vitro and in vivo. We demonstrated that OIC-A006, at different concentrations, especially at optimal concentration of 6.25 microM, could stimulate BMSCs to express alkaline phosphatase (ALP), core-binding factor a1 (Cbfa1), osteopontin (OPN) and osteocalcin (OC), and to form calcified nodules in vitro. Under the bone tissue culture conditions, OIC-A006 also stimulated new bone formation of murine calvarial and metatarsal bone, indicating that OIC-A006 may exert positive effects on osteogenesis. Furthermore, to elucidate the in vivo osteogenic potential of OIC-A006, we used a rabbit skull defect model treated with sustained release microcapsules (OIC-A006/PLGA-MC) injected s.c. adjacent to the defect. These results revealed, for the first time, that OIC-A006 has the potential to promote osteogenesis in vitro and in vivo. This new compound may provide a new alterative agent for growth factors to promote bone healing and bone regeneration.
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