يعرض 1 - 6 نتائج من 6 نتيجة بحث عن '"ELISA quantification"', وقت الاستعلام: 0.38s تنقيح النتائج
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    Academic Journal

    المؤلفون: O Evrova, J Buschmann

    المصدر: European Cells & Materials, Vol 34, Pp 15-39 (2017)

    مصطلحات موضوعية: the range of bioactive components in dentine and specific biological effects on bone-derived mesenchymal stem cells (MSCs) in humans are less well understood. The aims of this study were to further elucidate the biological response of MSCs to demineralised dentine matrix (DDM) in enhancing wound repair responses and ascertain key contributing components. Dentine was obtained from human teeth and DDM proteins solubilised with ethylenediaminetetraacetic acid (EDTA). Bone marrow derived MSCs were commercially obtained. Cells with a more immature phenotype were then selected by preferential fibronectin adhesion (FN-BMMSCs) for use in subsequent in vitro assays. DDM at 10 µg/mL reduced cell expansion, attenuated apoptosis and was the minimal concentration capable of inducing osteoblastic differentiation. Enzyme-linked immunosorbent assay (ELISA) quantification of growth factors indicated physiological levels produced the above responses, transforming growth factor β (TGF-β1) was predominant (15.6 ng/mg DDM), with relatively lower concentrations of BMP-2, FGF, VEGF and PDGF (6.2-4.7 ng/mg DDM). Fractionation of growth factors from other DDM components by heparin affinity chromatography diminished osteogenic responses. Depletion of biglycan from DDM also attenuated osteogenic potency, which was partially rescued by the isolated biglycan. Decorin depletion from DDM had no influence on osteogenic potency. Collectively, these results demonstrate the potential of DDM for the delivery of physiological levels of growth factors for bone repair processes, Mesenchymal stem cells, dentine, growth factors, biglycan, decorin, cell expansion, osteoblast differentiation, migration, apoptosis, Diseases of the musculoskeletal system, RC925-935, Orthopedic surgery, RD701-811

    وصف الملف: electronic resource

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    المصدر: Sao Paulo Medical Journal, Volume: 138, Issue: 2, Pages: 133-139, Published: 01 JUN 2020
    São Paulo Medical Journal, Vol 138, Iss 2, Pp 133-139
    Sao Paulo Medical Journal v.138 n.2 2020
    São Paulo medical journal
    Associação Paulista de Medicina
    instacron:APM

    وصف الملف: text/html

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    المؤلفون: Olivera Evrova, Johanna Buschmann

    المساهمون: University of Zurich

    المصدر: European Cells & Materials, Vol 34, Pp 15-39 (2017)

    مصطلحات موضوعية: 0301 basic medicine, VEGF and PDGF (6.2-4.7 ng/mg DDM). Fractionation of growth factors from other DDM components by heparin affinity chromatography diminished osteogenic responses. Depletion of biglycan from DDM also attenuated osteogenic potency, 1303 Biochemistry, lcsh:Diseases of the musculoskeletal system, Angiogenesis, these results demonstrate the potential of DDM for the delivery of physiological levels of growth factors for bone repair processes, Becaplermin, Bioinformatics, with relatively lower concentrations of BMP-2, migration, dentine, 1307 Cell Biology, Tendons, Drug Delivery Systems, FGF, 10266 Clinic for Reconstructive Surgery, decorin, biology, apoptosis, Proto-Oncogene Proteins c-sis, osteoblast differentiation, Drug delivery, the range of bioactive components in dentine and specific biological effects on bone-derived mesenchymal stem cells (MSCs) in humans are less well understood. The aims of this study were to further elucidate the biological response of MSCs to demineralised dentine matrix (DDM) in enhancing wound repair responses and ascertain key contributing components. Dentine was obtained from human teeth and DDM proteins solubilised with ethylenediaminetetraacetic acid (EDTA). Bone marrow derived MSCs were commercially obtained. Cells with a more immature phenotype were then selected by preferential fibronectin adhesion (FN-BMMSCs) for use in subsequent in vitro assays. DDM at 10 µg/mL reduced cell expansion, Platelet-derived growth factor receptor, cell expansion, medicine.drug, Signal Transduction, lcsh:Surgery, 2204 Biomedical Engineering, Context (language use), 610 Medicine & health, Models, Biological, Fibrin, 03 medical and health sciences, In vivo, growth factors, medicine, Animals, Humans, Wound Healing, 1502 Bioengineering, business.industry, 2502 Biomaterials, lcsh:RD1-811, biglycan, In vitro, 030104 developmental biology, attenuated apoptosis and was the minimal concentration capable of inducing osteoblastic differentiation. Enzyme-linked immunosorbent assay (ELISA) quantification of growth factors indicated physiological levels produced the above responses, transforming growth factor β (TGF-β1) was predominant (15.6 ng/mg DDM), biology.protein, Mesenchymal stem cells, lcsh:RC925-935, business, which was partially rescued by the isolated biglycan. Decorin depletion from DDM had no influence on osteogenic potency. Collectively

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    Academic Journal