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Amorphous, Smart, and Bioinspired Polyphosphate Nano/Microparticles: A Biomaterial for Regeneration and Repair of Osteo-Articular Impairments In-Situ

2018

Using femur explants from mice as an in vitro model, we investigated the effect of the physiological polymer, inorganic polyphosphate (polyP), on differentiation of the cells of the bone marrow in their natural microenvironment into the osteogenic and chondrogenic lineages. In the form of amorphous Ca-polyP nano/microparticles, polyP retains its function to act as both an intra- and extracellular metabolic fuel and a stimulus eliciting morphogenetic signals. The method for synthesis of the nano/microparticles with the polyanionic polyP also allowed the fabrication of hybrid particles with the bisphosphonate zoledronic acid, a drug used in therapy of bone metastases in cancer patients. The r…

0301 basic medicineBone Regenerationlong bone defects; bone marrow cells; inorganic polyphosphate; microparticles; bisphosphonates; <i>Runx2</i>; <i>Sox9</i>; cathepsin-K; tumor metastases; human mesenchymal stem cellsmedicine.medical_treatmentBiocompatible MaterialsCore Binding Factor Alpha 1 SubunitZoledronic Acidlcsh:ChemistryMiceRunx2OsteogenesisPolyphosphatesFemurlcsh:QH301-705.5tumor metastasesSpectroscopymicroparticlescathepsin-KDiphosphonatesTissue ScaffoldsChemistryImidazolesBiomaterialSOX9 Transcription FactorGeneral MedicineUp-RegulationComputer Science ApplicationsCell biologyRUNX2medicine.anatomical_structureinorganic polyphosphateChondrogenesisSox9medicine.drugArticleCatalysisChondrocyteInorganic Chemistryhuman mesenchymal stem cells03 medical and health sciencesOsteoclastmedicineAnimalsHumansPhysical and Theoretical Chemistrybone marrow cellsbisphosphonatesMolecular BiologyOrganic ChemistryMesenchymal stem cellMesenchymal Stem CellsBisphosphonateRatslong bone defects030104 developmental biologyZoledronic acidlcsh:Biology (General)lcsh:QD1-999Gene Expression RegulationNanoparticlesBone marrowInternational Journal of Molecular Sciences
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