Search results for "Osteoblast"

showing 10 items of 152 documents

Silver nanoparticle based coatings enhance adipogenesis compared to osteogenesis in human mesenchymal stem cells through oxidative stress.

2020

Silver nanoparticle (AgNP) based antibacterial surfaces were fabricated using plasma polymerization technology and their effects on differentiation of human bone-marrow derived mesenchymal stem cells (hMSCs) were investigated in this study. The results showed that AgNP coated surfaces do not affect the initial adhesion, spreading and proliferation of hMSCs. Furthermore, the silver coated surface promoted adipogenic differentiation of hMSCs as demonstrated by more accumulation of lipid droplets and upregulation of adipogenesis-related genes such as peroxisome proliferator activated receptor gamma (PPAR gamma), adipocyte determination and differentiation factor (ADD1) and CCAAT/enhancer bindi…

0301 basic medicineMaterials scienceMaterials ScienceBiomedical Engineeringmechanism02 engineering and technologysurfacesSilver nanoparticle03 medical and health sciencesEnhancer bindingLipid dropletGeneral Materials Scienceadipocyte differentiationfunctional-groupsAntibacterial agentnadph oxidasesMaterials Science BiomaterialstherapypathwayMesenchymal stem cellosteoblaststoxicityGeneral ChemistryGeneral Medicine021001 nanoscience & nanotechnologyCell biology030104 developmental biologyBiochemistryexposureAdipogenesisAlkaline phosphataseStem cell0210 nano-technologyJournal of materials chemistry. B
researchProduct

Amorphous polyphosphate–hydroxyapatite: A morphogenetically active substrate for bone-related SaOS-2 cells in vitro

2015

There is increasing evidence that inorganic calcium-polyphosphates (polyP) are involved in human bone hydroxyapatite (HA) formation. Here we investigated the morphology of the particles, containing calcium phosphate (CaP) with different concentrations of various Na-polyP concentrations, as well as their effects in cell culture. We used both SaOS-2 cells and human mesenchymal stem cells. The polymeric phosphate readily binds calcium ions under formation of insoluble precipitates. We found that addition of low concentrations of polyP (10wt.%, referred to the CaP deposits) results in an increased size of the HA crystals. Surprisingly, at higher polyP concentrations (10wt.%) the formation of cr…

0301 basic medicinePolymersBiocompatible Materials02 engineering and technologyBone tissueBiochemistryApatitechemistry.chemical_compoundX-Ray DiffractionOsteogenesisPolyphosphatesSpectroscopy Fourier Transform InfraredTissue ScaffoldsBiomaterialGeneral Medicine021001 nanoscience & nanotechnologyMicrospheresGene Expression Regulation Neoplasticmedicine.anatomical_structureBiochemistryvisual_artvisual_art.visual_art_mediumAlkaline phosphataseHydroxyapatites0210 nano-technologyBiotechnologyMaterials scienceBiocompatibilityBiomedical Engineeringchemistry.chemical_elementCalciumCollagen Type IBiomaterials03 medical and health sciencesCalcification PhysiologicMicroscopy Electron TransmissionCell Line TumormedicineHumansBone regenerationMolecular BiologyCell ProliferationIonsOsteoblastsTissue EngineeringSodiumMesenchymal Stem CellsAlkaline PhosphatasePhosphateMicroscopy ElectronDurapatite030104 developmental biologychemistryBiophysicsCalciumActa Biomaterialia
researchProduct

Cabozantinib targets bone microenvironment modulating human osteoclast and osteoblast functions

2016

Cabozantinib, a c-MET and vascular endothelial growth factor receptor 2 inhibitor, demonstrated to prolong progression free survival and improve skeletal disease-related endpoints in castration-resistant prostate cancer and in metastatic renal carcinoma. Our purpose is to investigate the direct effect of cabozantinib on bone microenvironment using a total human model of primary osteoclasts and osteoblasts.Osteoclasts were differentiated from monocytes isolated from healthy donors; osteoblasts were derived from human mesenchymal stem cells obtained from bone fragments of orthopedic surgery patients. Osteoclast activity was evaluated by tartrate resistant acid phosphatase (TRAP) staining and …

0301 basic medicinePyridines -- pharmacologyPyridinesPyridineImmunoenzyme TechniqueOsteoclastsApoptosisRANK Ligand -- genetics -- metabolismImmunoenzyme Techniqueschemistry.chemical_compoundBone Resorption -- drug therapy -- metabolism -- pathology0302 clinical medicineOsteogenesisCathepsin KMedicineAnilidesAnilides -- pharmacologyOsteoprotegerin -- genetics -- metabolismOsteoclasts -- cytology -- drug effects -- physiologyHuman primary cellCells CulturedTartrate-resistant acid phosphataseReceptor Activator of Nuclear Factor-kappa B -- genetics -- metabolismbiologyProto-Oncogene Proteins c-met -- genetics -- metabolismReceptor Activator of Nuclear Factor-kappa BReverse Transcriptase Polymerase Chain ReactionOsteoblastOsteogenesiOsteoblastCell DifferentiationSciences bio-médicales et agricolesProto-Oncogene Proteins c-metOsteoblasts -- cytology -- drug effects -- physiologymedicine.anatomical_structureCell Differentiation -- drug effectsOncologyRANKL030220 oncology & carcinogenesishuman primary cellsOsteoclastosteoprotegerin (OPG)bone microenvironmentHumanResearch Papermusculoskeletal diseasesmedicine.medical_specialtyCabozantinibBlotting WesternOsteogenesis -- drug effects -- physiologyReal-Time Polymerase Chain ReactionBone resorption03 medical and health sciencesOsteoprotegerinOsteoclastcabozantinibInternal medicineHumansRNA MessengerBone ResorptionCell ProliferationOsteoblastsbusiness.industryRANK LigandAnilideOsteoprotegerinApoptosiBone microenvironment; Cabozantinib; Human primary cells; Osteoprotegerin (OPG); Receptor activator of nuclear factor-kb ligand (RANKL); Anilides; Apoptosis; Blotting Western; Bone Resorption; Cell Differentiation; Cell Proliferation; Cells Cultured; Humans; Immunoenzyme Techniques; Osteoblasts; Osteoclasts; Osteogenesis; Osteoprotegerin; Proto-Oncogene Proteins c-met; Pyridines; RANK Ligand; RNA Messenger; Real-Time Polymerase Chain Reaction; Receptor Activator of Nuclear Factor-kappa B; Reverse Transcriptase Polymerase Chain Reaction; Oncology030104 developmental biologyEndocrinologychemistrybiology.proteinbusinessRNA Messenger -- geneticsreceptor activator of nuclear factor-kb ligand (RANKL)
researchProduct

Stanozolol promotes osteogenic gene expression and apposition of bone mineral in vitro

2018

Abstract Stanozolol (ST) is a synthetic androgen with high anabolic potential. Although it is known that androgens play a positive role in bone metabolism, ST action on bone cells has not been sufficiently tested to support its clinical use for bone augmentation procedures. Objective: This study aimed to assess the effects of ST on osteogenic activity and gene expression in SaOS-2 cells. Material and Methods: SaOS-2 deposition of mineralizing matrix in response to increasing doses of ST (0-1000 nM) was evaluated through Alizarin Red S and Calcein Green staining techniques at 6, 12 and 24 days. Gene expression of runt-related transcription factor 2 (RUNX2), vitamin D receptor (VDR), osteopon…

0301 basic medicineTime FactorsBone matrixCore Binding Factor Alpha 1 SubunitReal-Time Polymerase Chain ReactionCalcitriol receptorBone remodelingCalcificationAndrology03 medical and health sciencesAnabolic AgentsCalcification PhysiologicOsteogenesisCell Line TumorBone cellHumansOsteonectinOsteopontinGeneral DentistryBone mineralAnalysis of VarianceOsteoblastsbiologyChemistryReproducibility of Resultslcsh:RK1-715RUNX2Apposition030104 developmental biologylcsh:DentistryLinear Modelsbiology.proteinAndrogensReceptors CalcitriolOriginal ArticleOsteopontinGene expressionOsteonectinStanozolol
researchProduct

Phenolic Compounds in Extra Virgin Olive Oil Stimulate Human Osteoblastic Cell Proliferation.

2016

In this study, we aimed to clarify the effects of phenolic compounds and extracts from different extra virgin olive oil (EVOO) varieties obtained from fruits of different ripening stages on osteoblast cells (MG-63) proliferation. Cell proliferation was increased by hydroxytyrosol, luteolin, apigenin, p-coumaric, caffeic, and ferulic acids by approximately 11-16%, as compared with controls that were treated with one vehicle alone, while (+)-pinoresinol, oleuropein, sinapic, vanillic acid and derivative (vanillin) did not affect cell proliferation. All phenolic extracts stimulated MG-63 cell growth, and they induced higher cell proliferation rates than individual compounds. The most effective…

0301 basic medicineTime Factorslcsh:MedicineBiochemistryMass SpectrometryTreeschemistry.chemical_compoundAnimal CellsPlant ProductsMedicine and Health SciencesCaffeic acidApigeninlcsh:ScienceLuteolinChromatography High Pressure LiquidConnective Tissue CellsCultured Tumor CellsPrincipal Component AnalysisMultidisciplinaryAgricultureCell DifferentiationRipeningPlantsPhenylethyl AlcoholLipidsOsteoblast DifferentiationChemistryBiochemistryCell ProcessesConnective TissuePhysical SciencesApigeninBiological CulturesCellular TypesAnatomyResearch ArticleOlive TreesCoumaric AcidsResearch and Analysis MethodsVegetable Oils03 medical and health sciencesCaffeic AcidsPhenolsOleuropeinCell Line TumorOleaVanillic acidHumansPhenolsOlive OilCell ProliferationAnalysis of Variance030109 nutrition & dieteticsOsteoblastsDose-Response Relationship Druglcsh:RChemical CompoundsOrganismsBiology and Life SciencesCell BiologyCell CulturesOsteosarcoma CellsAgronomyOlive treesBiological Tissue030104 developmental biologychemistryFruitHydroxytyrosollcsh:QOilsCrop ScienceDevelopmental Biology
researchProduct

SNPs in bone-related miRNAs are associated with the osteoporotic phenotype

2017

AbstractBiogenesis and function of microRNAs can be influenced by genetic variants in the pri-miRNA sequences leading to phenotypic variability. This study aims to identify single nucleotide polymorphisms (SNPs) affecting the expression levels of bone-related mature microRNAs and thus, triggering an osteoporotic phenotype. An association analysis of SNPs located in pri-miRNA sequences with bone mineral density (BMD) was performed in the OSTEOMED2 cohort (n = 2183). Functional studies were performed for assessing the role of BMD-associated miRNAs in bone cells. Two SNPs, rs6430498 in the miR-3679 and rs12512664 in the miR-4274, were significantly associated with femoral neck BMD. Further, we…

0301 basic medicineconformation:Diseases::Wounds and Injuries::Fractures Bone::Hip Fractures [Medical Subject Headings]:Phenomena and Processes::Genetic Phenomena::Phenotype [Medical Subject Headings]Polimorfismo de nucleótido simpleGene ExpressionboneOsteoblastosDensidad ósea:Organisms::Eukaryota::Animals::Chordata::Vertebrates::Mammals::Primates::Haplorhini::Catarrhini::Hominidae::Humans [Medical Subject Headings]Cohort StudiesGene Frequencysingle nucleotide polymorphismBone DensityBone cellOssosgeneticsFracturas osteoporóticasCells CulturedGeneticsBone mineralMicroARNsMultidisciplinarymicroRNAbiologyQalleleR:Diseases::Wounds and Injuries::Fractures Bone::Osteoporotic Fractures [Medical Subject Headings]clinical trialMiddle Agedcohort analysisPhenotypeHumanosFenotipmedicine.anatomical_structureCancellous BoneosteoblastMedicine:Diseases::Musculoskeletal Diseases::Bone Diseases [Medical Subject Headings]:Phenomena and Processes::Genetic Phenomena::Genotype [Medical Subject Headings]:Anatomy::Cells::Connective Tissue Cells::Osteoblasts [Medical Subject Headings]AlelosFenotipomusculoskeletal diseasesmedicine.medical_specialtyGenotypeScienceSingle-nucleotide polymorphismBiologychemistryPolymorphism Single NucleotideArticleBone and Bones:Anatomy::Musculoskeletal System::Skeleton::Bone and Bones::Cancellous Bone [Medical Subject Headings]03 medical and health sciencesCalcification PhysiologicInternal medicinemicroRNAmedicineHumanshumanproceduresAllele:Phenomena and Processes::Genetic Phenomena::Genetic Structures::Genome::Genome Components::Genes::Alleles [Medical Subject Headings]AllelesFemoral neckGenetic associationAgedcell culture:Phenomena and Processes::Musculoskeletal and Neural Physiological Phenomena::Musculoskeletal Physiological Phenomena::Bone Density [Medical Subject Headings]:Phenomena and Processes::Genetic Phenomena::Genetic Variation::Polymorphism Genetic::Polymorphism Single Nucleotide [Medical Subject Headings]OsteoblastsEnfermedades óseasFracturas de caderaComputational BiologyCuello femoral:Chemicals and Drugs::Nucleic Acids Nucleotides and Nucleosides::Antisense Elements (Genetics)::RNA Antisense::MicroRNAs [Medical Subject Headings]MicroRNAs030104 developmental biologyEndocrinologymulticenter studybone mineralizationNucleic Acid ConformationOsteoporosispathology:Anatomy::Musculoskeletal System::Skeleton::Bone and Bones::Bones of Lower Extremity::Leg Bones::Femur::Femur Neck [Medical Subject Headings]TranscriptomemetabolismGenotipoFractures
researchProduct

Quercetin-Based Nanocomposites as a Tool to Improve Dental Disease Management

2020

The restoration and prosthetic rehabilitation of missing teeth are commonly performed using dental implants, which are extremely effective and long-lasting techniques due to their osteointegration ability with the preimplant tissues. Quercetin is a phytoestrogen-like flavonoid well known for its several positive effects on human health, mostly linked to the anti-inflammatory, antioxidant, and antibacterial activities against both Gram-positive and Gram-negative bacteria. Moreover, many studies in dentistry and the maxillofacial fields have highlighted the positive effects of quercetin on osteogenesis, acting on osteoblast activity and angiogenetic process, and promoting soft and hard tissue…

0301 basic medicinedental diseasemedicine.medical_treatmentMedicine (miscellaneous)DentistryReviewGeneral Biochemistry Genetics and Molecular BiologyOsseointegrationquercetin03 medical and health scienceschemistry.chemical_compoundHuman health0302 clinical medicineIn vivoantibacterial effectOral and maxillofacial pathologymedicineheterocyclic compoundsDental implantlcsh:QH301-705.5dental implantbusiness.industryRegeneration (biology)osteoinductive effectOsteoblast030206 dentistrymedicine.disease030104 developmental biologymedicine.anatomical_structurechemistrylcsh:Biology (General)businessQuercetinquercetin scaffoldBiomedicines
researchProduct

The link between bone microenvironment and immune cells in multiple myeloma: Emerging role of CD38

2018

The relationship between bone and immune cells is well established both in physiological and pathological conditions. Multiple myeloma (MM) is a plasma cell malignancy characterized by an increase of number and activity of osteoclasts (OCLs) and a decrease of osteoblasts (OBs). These events are responsible for bone lesions of MM patients. OCLs support MM cells survival in vitro and in vivo. Recently, the possible role of OCLs as immunosuppressive cells in the MM BM microenvironment has been underlined. OCLs protect MM cells against T cell-mediated cytotoxicity through the expression of several molecules including programmed death-ligand (PD-L) 1, galectin (Gal) 9, CD200, and indoleamine-2,3…

0301 basic medicinemedicine.drug_classT-LymphocytesT cellImmunologyOsteoclastsPlasma cellCD38Monoclonal antibodyImmunomodulation03 medical and health sciencesImmune systemOsteogenesisOsteoclastTumor MicroenvironmentmedicineAnimalsHumansImmunology and AllergyGalectinMembrane GlycoproteinsChemistryAntibodies MonoclonalOsteoblastADP-ribosyl Cyclase 1030104 developmental biologymedicine.anatomical_structureCancer researchMultiple MyelomaImmunology Letters
researchProduct

Wnt1 is an Lrp5-independent bone-anabolic Wnt ligand.

2018

Wnt signaling is important for proper embryonic development, shaping cell fate and migration, stem cell renewal, and organ and tissue formation. Here, Luther et al. investigated the role of Wnt1 in osteoporosis. Patients with early-onset osteoporosis and with WNT1 mutations had low bone turnover and high fracture rates, and loss of Wnt1 activity caused fracture and osteoporosis in mice. Inducing Wnt1 in bone-forming cells increased bone mass in aged mice, and this process did not require Lrp5, a co-receptor involved in Wnt signaling. This study identifies Wnt1 as an anabolic (bone building) factor and suggests that it might be a therapeutic target for osteoporosis.WNT1 mutations in humans a…

0301 basic medicinemedicine.medical_specialtyAginganimal structuresAnabolismCellular differentiationOsteoporosis030209 endocrinology & metabolismMice TransgenicWnt1 ProteinLigandsBone and BonesBone remodeling03 medical and health sciencesFractures Bone0302 clinical medicineAnabolic AgentsOsteogenesisInternal medicineCortical BoneMedicineAnimalsHumansTransgenesOsteoblastsbusiness.industryIncidenceWnt signaling pathwayLRP5OsteoblastCell DifferentiationGeneral MedicineOrgan Sizemedicine.disease030104 developmental biologyEndocrinologymedicine.anatomical_structureLow Density Lipoprotein Receptor-Related Protein-5Osteogenesis imperfectaembryonic structuresMutationBone RemodelingbusinessScience translational medicine
researchProduct

Isoquercitrin and polyphosphate co-enhance mineralization of human osteoblast-like SaOS-2 cells via separate activation of two RUNX2 cofactors AFT6 a…

2014

Isoquercitrin, a dietary phytoestrogen, is a potential stimulator of bone mineralization used for prophylaxis of osteoporotic disorders. Here we studied the combined effects of isoquercitrin, a cell membrane permeable 3-O-glucoside of quercetin, and polyphosphate [polyP], a naturally occurring inorganic polymer inducing bone formation, on mineralization of human osteoblast-like SaOS-2 cells. Both compounds isoquercitrin and polyP induce at non-toxic concentrations the mineralization process of SaOS-2 cells. Co-incubation experiments revealed that isoquercitrin (at 0.1 and 0.3μM), if given simultaneously with polyP (as Ca(2+) salt; at 3, 10, 30 and 100μM) amplifies the mineralization-enhanci…

Activating transcription factorBiochemistryProto-Oncogene Protein c-ets-103 medical and health sciences0302 clinical medicineCalcification PhysiologicPolyphosphatesCell Line TumormedicineHumansSaos-2 cells030304 developmental biologyPharmacology0303 health sciencesOsteoblastsbiologyATF6OsteoblastDrug SynergismActivating Transcription Factor 6RUNX2medicine.anatomical_structureBiochemistryGene Expression Regulation030220 oncology & carcinogenesisOsteocalcinbiology.proteinAlkaline phosphataseCalciumQuercetinSignal transductionBiochemical pharmacology
researchProduct