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      Are We Economically Efficient Enough to Increase the Potential of in Vitro Proliferation of Osteoblasts by Means of Pharmacochemical Agents?

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          Abstract

          Background:

          The aim of this study was to test the necessity of using expensive and unaccesible pharmacological-chemical agents in the proliferation of bone tissue cultures and in the induction of mineralized matrix formation to increase the osteogenic effect.

          Methods:

          For this purpose, human primary cell cultures were prepared and then divided into two groups. Whereas the cells in group I were fed with an osteoblast stimulator medium containing Dulbecco’s Modified Eagle Medium (DMEM) and β-glycerophosphate, the cells in group II were fed with DMEM containing dexamethasone and 2-phospho-L-ascorbic acid trisodium salt. Both groups were evaluated in terms of viability, toxicity, and proliferation and then compared in terms of cell surface morphology through inverted light and environmental scanning electron microscopy. In addition to immunoflow cytometric analyses, the effects of alkaline phosphatase activities were evaluated using the spectrophotometric method to examine the osteoblastic activities. Costs were calculated in the currency of the European Union (Euros). The Tukey Honestly Significant Difference test was used to reach the statistical evaluation of the data after the analysis of variance.

          Results:

          It was reported that the level of the alkaline phosphates was higher in group I compared to group II. It was observed that the surface morphology quality, the number of living cells, and proliferation were higher in group II and that the results were deemed statistically significant.

          Conclusion:

          It was found that the 2-phospho-L-ascorbic acid trisodium salt and dexamethasone mixture was as effective as the expensive commercial kits on the osteogenic effect on human primary bone tissue.

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          Most cited references31

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          Radiological assessment of osteo-arthrosis.

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            Tissue engineering--current challenges and expanding opportunities.

            Tissue engineering can be used to restore, maintain, or enhance tissues and organs. The potential impact of this field, however, is far broader-in the future, engineered tissues could reduce the need for organ replacement, and could greatly accelerate the development of new drugs that may cure patients, eliminating the need for organ transplants altogether.
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              Mechanically stimulated bone cells secrete paracrine factors that regulate osteoprogenitor recruitment, proliferation, and differentiation.

              Bone formation requires the recruitment, proliferation and osteogenic differentiation of mesenchymal progenitors. A potent stimulus driving this process is mechanical loading, yet the signalling mechanisms underpinning this are incompletely understood. The objective of this study was to investigate the role of the mechanically-stimulated osteocyte and osteoblast secretome in coordinating progenitor contributions to bone formation. Initially osteocytes (MLO-Y4) and osteoblasts (MC3T3) were mechanically stimulated for 24 hrs and secreted factors within the conditioned media were collected and used to evaluate mesenchymal stem cell (MSC) and osteoblast recruitment, proliferation and osteogenesis. Paracrine factors secreted by mechanically stimulated osteocytes significantly enhanced MSC migration, proliferation and osteogenesis and furthermore significantly increased osteoblast migration and proliferation when compared to factors secreted by statically cultured osteocytes. Secondly, paracrine factors secreted by mechanically stimulated osteoblasts significantly enhanced MSC migration but surprisingly, in contrast to the osteocyte secretome, inhibited MSC proliferation when compared to factors secreted by statically cultured osteoblasts. A similar trend was observed in osteoblasts. This study provides new information on mechanically driven signalling mechanisms in bone and highlights a contrasting secretome between cells at different stages in the bone lineage, furthering our understanding of loading-induced bone formation and indirect biophysical regulation of osteoprogenitors.
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                Author and article information

                Journal
                Open Orthop J
                Open Orthop J
                TOORTHJ
                The Open Orthopaedics Journal
                Bentham Open
                1874-3250
                9 September 2016
                2016
                : 10
                : 420-430
                Affiliations
                [1 ]Department of Orthopaedic and Traumatology, Istanbul Medipol University School of Medicine, 34214, Istanbul, Turkey
                [2 ]General Secretariat of the Public Hospitals Union, Republic of Turkey, Ministry of Health, 59100, Tekirdag, Turkey
                [3 ]Department of Pharmacovigilance, Materiovigilance and Rational Use of Drugs, State Hospital, Republic of Turkey, Ministry of Health, 59100, Tekirdag, Turkey
                [4 ]Department of Molecular Biology and Genetic, Namik Kemal University, Faculty of Arts and Sciences, 59100, Tekirdag, Turkey
                [5 ]Department of Orthopaedics and Traumatology, Adiyaman University School of Medicine, 02000, Adıyaman, Turkey
                Author notes
                [* ] Address correspondence to this author at the Department of Pharmacovigilance, Materiovigilance and Rational Use of Drugs, State Hospital, Republic of Turkey, Ministry of Health, 59100, Tekirdag, Turkey; Tel: +9053 2701 2858; Fax: +902822625355; E-mail: ibrahimyilmaz77@ 123456yahoo.com
                Article
                TOORTHJ-10-420
                10.2174/1874325001610010420
                5034028
                27708738
                3015e6cb-82e4-4523-b110-4eccc4dc3b19
                © Isyar et al.; Licensee Bentham Open.

                This is an open access article licensed under the terms of the Creative Commons Attribution-Non-Commercial 4.0 International Public License (CC BY-NC 4.0) ( https://creativecommons.org/licenses/by-nc/4.0/legalcode), which permits unrestricted, non-commercial use, distribution and reproduction in any medium, provided the work is properly cited.

                History
                : 05 February 2016
                : 16 March 2016
                : 19 June 2016
                Categories
                Article

                Orthopedics
                2-phospho-l-ascorbic acid trisodium salt,cell differentiation,cost effectiveness,dexamethasone,osteogenic effect,proliferation

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