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Kumar VV, Heller M, Götz H, Schiegnitz E, Al-Nawas B, Kämmerer PW. Comparison of growth & function of endothelial progenitor cells cultured on deproteinized bovine bone modified with covalently bound fibronectin and bound vascular endothelial growth factor. Clin Oral Implants Res 2016; 28:543-550. [PMID: 26992449 DOI: 10.1111/clr.12832] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/27/2016] [Indexed: 01/07/2023]
Abstract
OBJECTIVES The objective of this study was to assess and compare the growth and function of Endothelial Progenitor Cells (EPCs) cultured on covalently bonded Vascular Endothelial Growth Factor (VEGF) and covalently bonded Fibronectin (FN) coating on deproteinized bovine bone (DBB) (test samples), compared to non-modified DBB blocks (control sample). MATERIALS AND METHODS The test samples were prepared by plasma polymerization of allylamine onto DBB blocks. Group1 of test samples were prepared with VEGF coating (VEGF-DBB) where as the Group2 test samples were coated with FN (FN-DBB). Non-modified DBB blocks served as a Control. EPCs were isolated and cultivated from buffy coats of peripheral blood of healthy volunteers and cultivated in the different samples and examined at time intervals of 24 h, 3 days, and 7 days. Evaluation of growth by cell count and cell morphology was done using Confocal Laser Scanning Electron Microscopy; vitality and function of cells was assessed using MTT assay and RT-PCR and ELISA for eNOS and iNOS respectively. RESULTS The results of the study show that both VEGF and FN could be successfully immobilized by plasma polymerization onto a complex, porous, three-dimensional structure of DBB. When comparing vital cell coverage, proliferation and function of EPCs, FN-DBB provided more positive values followed by VEGF-DBB as compared to DBB samples. eNOS level were significant higher in VEGF-DBB and FN-DBB when compared to DBB (P = 0.019 and P = 0.002). The difference between VEGF-DBB and FN-DBB was not significant. CONCLUSIONS Biomimetic coatings of Fibronectin may clinically relate to faster angiogenesis and earlier healing potential.
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Affiliation(s)
- Vinay V Kumar
- Department of Oral and Maxillofacial Surgery, University Medical Center of Johannes Gutenberg University, Mainz, Germany.,Department of Oral and Maxillofacial Surgery, University Medical Center of Rostock University, Rostock, Germany.,Head and Neck Institute, Mazumdar Shaw Medical Center and Center for Translational Research, Narayana Health, Bangalore, India
| | - Martin Heller
- Max Plank Institute for Polymer Research, Mainz, Germany
| | - Hermann Götz
- Department of Applied Structure and Microanalysis, University Medical Center of Johannes Gutenberg University, Mainz, Germany
| | - Eik Schiegnitz
- Department of Oral and Maxillofacial Surgery, University Medical Center of Johannes Gutenberg University, Mainz, Germany
| | - Bilal Al-Nawas
- Department of Oral and Maxillofacial Surgery, University Medical Center of Johannes Gutenberg University, Mainz, Germany
| | - Peer W Kämmerer
- Department of Oral and Maxillofacial Surgery, University Medical Center of Rostock University, Rostock, Germany
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Miron RJ, Chandad F, Buser D, Sculean A, Cochran DL, Zhang Y. Effect of Enamel Matrix Derivative Liquid on Osteoblast and Periodontal Ligament Cell Proliferation and Differentiation. J Periodontol 2015; 87:91-9. [PMID: 26334247 DOI: 10.1902/jop.2015.150389] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
BACKGROUND Enamel matrix derivatives (EMDs) have been used clinically for more than a decade for the regeneration of periodontal tissues. The aim of the present study is to analyze the effect on cell growth of EMDs in a gel carrier in comparison to EMDs in a liquid carrier. EMDs in a liquid carrier have been shown to adsorb better to bone graft materials. METHODS Primary human osteoblasts and periodontal ligament (PDL) cells were exposed to EMDs in both gel and liquid carriers and compared for their ability to induce cell proliferation and differentiation. Alizarin red staining and real-time polymerase chain reaction for expression of genes encoding collagen 1, osteocalcin, and runt-related transcription factor 2, as well as bone morphogenetic protein 2 (BMP2), transforming growth factor (TGF)-β1, and interleukin (IL)-1β, were assessed. RESULTS EMDs in both carriers significantly increased cell proliferation of both osteoblasts and PDL cells in a similar manner. Both formulations also significantly upregulated the expression of genes encoding BMP2 and TGF-β1 as well as decreased the expression of IL-1β. EMDs in the liquid carrier further retained similar differentiation potential of both osteoblasts and PDL cells by demonstrating increased collagen and osteocalcin gene expression and significantly higher alizarin red staining. CONCLUSIONS The results from the present study indicate that the new formulation of EMDs in a liquid carrier is equally as potent as EMDs in a gel carrier in inducing osteoblast and PDL activity. Future study combining EMDs in a liquid carrier with bone grafting materials is required to further evaluate its potential for combination therapies.
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Affiliation(s)
- Richard J Miron
- Faculty of Dentistry, Dental School, Laval University, Québec City, QC.,Department of Periodontology, School of Dental Medicine, University of Bern, Bern, Switzerland.,Department of Oral Surgery and Stomatology, School of Dental Medicine, University of Bern
| | - Fatiha Chandad
- Faculty of Dentistry, Dental School, Laval University, Québec City, QC
| | - Daniel Buser
- Department of Oral Surgery and Stomatology, School of Dental Medicine, University of Bern
| | - Anton Sculean
- Department of Periodontology, School of Dental Medicine, University of Bern, Bern, Switzerland
| | - David L Cochran
- Department of Periodontics, Dental School, University of Texas Health Science Center, San Antonio, TX
| | - Yufeng Zhang
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST), School and Hospital of Stomatology, Wuhan, China
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Promotion of Osteogenic Cell Response Using Quasicovalent Immobilized Fibronectin on Titanium Surfaces: Introduction of a Novel Biomimetic Layer System. J Oral Maxillofac Surg 2012; 70:1827-34. [DOI: 10.1016/j.joms.2012.04.004] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2012] [Accepted: 04/02/2012] [Indexed: 01/16/2023]
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Acevedo-Morantes CY, Irizarry-Ortiz RA, Caceres-Valencia PG, Singh SP, Ramirez-Vick JE. Combinatorial growth of oxide nanoscaffolds and its influence in osteoblast cell adhesion. JOURNAL OF APPLIED PHYSICS 2012; 111:102810-1028107. [PMID: 22670064 PMCID: PMC3365913 DOI: 10.1063/1.4714727] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2011] [Accepted: 08/26/2011] [Indexed: 06/01/2023]
Abstract
We report a novel method for high-throughput investigations on cell-material interactions based on metal oxide nanoscaffolds. These scaffolds possess a continuous gradient of various titanium alloys allowing the compositional and morphological variation that could substantially improve the formation of an osseointegrative interface with bone. The model nanoscaffold has been fabricated on commercially pure titanium (cp-Ti) substrate with a compositional gradients of tin (Sn), chromium (Cr), and niobium (Nb) deposited using a combinatorial approach followed by annealing to create native oxide surface. As an invitro test system, the human fetal osteoblastic cell line (hFOB 1.19) has been used. Cell-adhesion of hFOB 1.19 cells and the suitability of these alloys have been evaluated for cell-morphology, cell-number, and protein adsorption. Although, cell-morphology was not affected by surface composition, cell-proliferation rates varied significantly with surface metal oxide composition; with the Sn- and Nb-rich regions showing the highest proliferation rate and the Cr-rich regions presenting the lowest. The results suggest that Sn and Nb rich regions on surface seems to promote hFOB 1.19 cell proliferation and may therefore be considered as implant material candidates that deserve further analysis.
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Rho kinase inhibitors stimulate the migration of human cultured osteoblastic cells by regulating actomyosin activity. Cell Mol Biol Lett 2011; 16:279-95. [PMID: 21394446 PMCID: PMC6275969 DOI: 10.2478/s11658-011-0006-z] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2010] [Accepted: 03/02/2011] [Indexed: 11/20/2022] Open
Abstract
We investigated the effects of Rho-associated kinase (ROCK) on migration and cytoskeletal organization in primary human osteoblasts and Saos-2 human osteosarcoma cells. Both cell types were exposed to two different ROCK inhibitors, Y-27632 and HA-1077. In the improved motility assay used in the present study, Y-27632 and HA-1077 significantly increased the migration of both osteoblasts and osteosarcoma cells on plastic in a dose-dependent and reversible manner. Fluorescent images showed that cells of both types cultured with Y-27632 or HA-1077 exhibited a stellate appearance, with poor assembly of stress fibers and focal contacts. Western blotting showed that ROCK inhibitors reduced myosin light chain (MLC) phosphorylation within 5 min without affecting overall myosin light-chain protein levels. Inhibition of ROCK activity is thought to enhance the migration of human osteoblasts through reorganization of the actin cytoskeleton and regulation of myosin activity. ROCK inhibitors may be potentially useful as anabolic agents to enhance the biocompatibility of bone and joint prostheses.
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Howard C, Murray PE, Namerow KN. Dental Pulp Stem Cell Migration. J Endod 2010; 36:1963-6. [DOI: 10.1016/j.joen.2010.08.046] [Citation(s) in RCA: 74] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2010] [Revised: 08/24/2010] [Accepted: 08/25/2010] [Indexed: 11/26/2022]
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Beuvelot J, Pascaretti-Grizon F, Filmon R, Moreau MF, Baslé MF, Chappard D. In vitro assessment of osteoblast and macrophage mobility in presence of β-TCP particles by videomicroscopy. J Biomed Mater Res A 2010; 96:108-15. [DOI: 10.1002/jbm.a.32959] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2010] [Revised: 06/14/2010] [Accepted: 06/16/2010] [Indexed: 11/07/2022]
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Qu Z, Laky M, Ulm C, Matejka M, Dard M, Andrukhov O, Rausch-fan X. Effect of Emdogain on proliferation and migration of different periodontal tissue-associated cells. ACTA ACUST UNITED AC 2010; 109:924-31. [PMID: 20399692 DOI: 10.1016/j.tripleo.2010.01.007] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2009] [Revised: 01/04/2010] [Accepted: 01/12/2010] [Indexed: 10/19/2022]
Abstract
OBJECTIVES Although Emdogain is widely used as a gel in periodontal therapy, the exact mechanisms underlying its regenerative ability still need to be further investigated. Therefore, we tested in vitro the effect of the product Emdogain on proliferation, viability, and migration of various human cell types of periodontium. STUDY DESIGN Proliferation and viability of alveolar osteoblasts (AOBs), epithelial cell line HSC-2, and human umbilical vein endothelial cells (HUVECs) were measured using [(3)H]-thymidine uptake and 3,4,5-dimethylthiazol-2-yl-2,5-diphenyl tetrazolium bromide (MTT)-assay, respectively. Cell migration was investigated in microchemotaxis chamber. RESULTS The proliferation and viability of AOB, HSC-2, and HUVECs were significantly stimulated by Emdogain (12.5-250 microg/mL) in direct relationship with the amount of product present in the cell culture medium. Cell migration was stimulated in AOB and HUVECs depending on Emdogain amount. In contrast, in HSC-2 cells the migration was stimulated only by less than 50 microg/mL of Emdogain, whereas at higher amounts this stimulating effect was either diminished or absent. CONCLUSION Emdogain stimulates proliferation, viability, and migration of AOB, HSC-2, and HUVECs in vitro. This biological versatility of Emdogain could correspond to an essential mechanism underlying its ability to promote periodontal regeneration.
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Affiliation(s)
- Zhe Qu
- Department of Periodontology, Bernhard Gottlieb University Clinic of Dentistry, Medical University of Vienna, Vienna, Austria
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Laaksonen M, Sorsa T, Salo T. Emdogain in carcinogenesis: a systematic review of in vitro studies. J Oral Sci 2010; 52:1-11. [PMID: 20339227 DOI: 10.2334/josnusd.52.1] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
Abstract
Emdogain is a commercial product of unknown composition and is clinically used to induce periodontal regeneration. This study aims to review current knowledge of the in vitro effects of Emdogain on oral tissues and, in particular, factors related to carcinoma. A systematic approach was used to review studies from the Embase and Pubmed databases; a total of 76 studies were included. These comprised in vitro studies of the cytokines in, or regulated by, Emdogain and assays designed to study the effects of EMD on human cells in oral tissues or malignant cells. Several studies have shown that EMD regulates the proliferation, migration, adhesion, gene expression, and cytokine production of (pre-)osteoblasts, periodontal fibroblasts, and gingival fibroblasts. However, the effects of EMD on malignant oral cells are not well understood. EMD seems to have broad regulatory effects on malignant cells and on several carcinoma-related factors. Evidence suggests that patients with premalignant or malignant mucosal lesions should not be treated with EMD.
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Affiliation(s)
- Matti Laaksonen
- Department of Oral and Maxillofacial Diseases, Helsinki University Central Hospital, Institute of Dentistry, University of Helsinki, Finland
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Jue SS, Lee WY, Kwon YD, Kim YR, Pae A, Lee B. The effects of enamel matrix derivative on the proliferation and differentiation of human mesenchymal stem cells. Clin Oral Implants Res 2010; 21:741-6. [DOI: 10.1111/j.1600-0501.2009.01901.x] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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Reichert C, Al-Nawas B, Smeets R, Kasaj A, Götz W, Klein MO. In vitro proliferation of human osteogenic cells in presence of different commercial bone substitute materials combined with enamel matrix derivatives. Head Face Med 2009; 5:23. [PMID: 19909545 PMCID: PMC2780983 DOI: 10.1186/1746-160x-5-23] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2009] [Accepted: 11/12/2009] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Cellular reactions to alloplastic bone substitute materials (BSM) are a subject of interest in basic research. In regenerative dentistry, these bone grafting materials are routinely combined with enamel matrix derivatives (EMD) in order to additionally enhance tissue regeneration. MATERIALS AND METHODS The aim of this study was to evaluate the proliferative activity of human osteogenic cells after incubation over a period of seven days with commercial BSM of various origin and chemical composition. Special focus was placed on the potential additional benefit of EMD on cellular proliferation. RESULTS Except for PerioGlas, osteogenic cell proliferation was significantly promoted by the investigated BSM. The application of EMD alone also resulted in significantly increased cellular proliferation. However, a combination of BSM and EMD resulted in only a moderate additional enhancement of osteogenic cell proliferation. CONCLUSION The application of most BSM, as well as the exclusive application of EMD demonstrated a positive impact on the proliferation of human osteogenic cells in vitro. In order to increase the benefit from substrate combination (BSM + EMD), further studies on the interactions between BSM and EMD are needed.
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Affiliation(s)
- Christoph Reichert
- Department of Oral and Maxillofacial Surgery, University Hospital Aachen, Aachen, Germany.
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Implementation of new software for fast screening of cell compatibility on surface modifications using low-contrast time-lapsed microscopy. Clin Oral Investig 2009; 14:499-506. [DOI: 10.1007/s00784-009-0339-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2009] [Accepted: 08/07/2009] [Indexed: 11/27/2022]
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Roediger M, Miró X, Geffers R, Irmer M, Huels A, Miosge N, Gersdorff N. Profiling of Differentially Expressed Genes in Peri-implantitis and Periodontitis in vivo by Microarray Analysis. J Oral Biosci 2009. [DOI: 10.1016/s1349-0079(09)80018-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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Bosshardt DD. Biological mediators and periodontal regeneration: a review of enamel matrix proteins at the cellular and molecular levels. J Clin Periodontol 2008; 35:87-105. [DOI: 10.1111/j.1600-051x.2008.01264.x] [Citation(s) in RCA: 194] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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