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Song W, Zhao L, Gao Y, Han C, Gao S, Guo M, Bai J, Wang L, Yin W, Wu F, Zhang P. Dual growth factor-modified microspheres nesting human-derived umbilical cord mesenchymal stem cells for bone regeneration. J Biol Eng 2023; 17:43. [PMID: 37430290 DOI: 10.1186/s13036-023-00360-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Accepted: 06/01/2023] [Indexed: 07/12/2023] Open
Abstract
BACKGROUND Modular tissue engineering (MTE) is a novel "bottom-up" approach that aims to mimic complex tissue microstructural features. The constructed micromodules are assembled into engineered biological tissues with repetitive functional microunits and form cellular networks. This is emerging as a promising strategy for reconstruction of biological tissue. RESULTS Herein, we constructed a micromodule for MTE and developed engineered osteon-like microunits by inoculating human-derived umbilical cord mesenchymal stem cells (HUMSCs) onto nHA/PLGA microspheres with surface modification of dual growth factors (BMP2/bFGF). By evaluating the results of proliferation and osteogenic differentiation ability of HUMSCs in vitro, the optimal ratio of the dual growth factor (BMP2/bFGF) combination was derived as 5:5. In vivo assessments showed the great importance of HUMSCs for osteogneic differentiation. Ultimately, direct promotion of early osteo-differentiation manifested as upregulation of Runx-2 gene expression. The vascularization capability was evaluated by tube formation assays, demonstrating the importance of HUMSCs in the microunits for angiogenesis. CONCLUSIONS The modification of growth factors and HUMSCs showed ideal biocompatibility and osteogenesis combined with nHA/PLGA scaffolds. The micromodules constructed in the current study provide an efficient stem cell therapy strategy for bone defect repair.
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Affiliation(s)
- Wenzhi Song
- Department of Stomatology, China-Japan Union Hospital, Jilin University, Changchun, 130031, PR China
| | - Lanlan Zhao
- Department of Stomatology, China-Japan Union Hospital, Jilin University, Changchun, 130031, PR China
| | - Yuqi Gao
- Department of Stomatology, China-Japan Union Hospital, Jilin University, Changchun, 130031, PR China
| | - Chunyu Han
- Department of Stomatology, China-Japan Union Hospital, Jilin University, Changchun, 130031, PR China
| | - Shengrui Gao
- Department of Otorhinolaryngology, First Clinical Hospital of Jilin University, Changchun, 130021, PR China
| | - Min Guo
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, PR China
| | - Jianfei Bai
- Department of Stomatology, China-Japan Union Hospital, Jilin University, Changchun, 130031, PR China
| | - Liqiang Wang
- Department of Ophthalmology, Third Medical Center, Chinese PLA General Hospital, Beijing, 100853, PR China
| | - Wanzhong Yin
- Department of Otorhinolaryngology, First Clinical Hospital of Jilin University, Changchun, 130021, PR China.
| | - Feng Wu
- Foshan Hospital of Traditional Chinese Medicine/Foshan Hospital of TCM, Foshan, China.
| | - Peibiao Zhang
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, PR China
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2
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Biogenic preparation of biphasic calcium phosphate powder from natural source of snail shells: bioactivity study. SN APPLIED SCIENCES 2022. [DOI: 10.1007/s42452-022-05025-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
Abstract
AbstractIn this present work, carbonated apatite powder (CAP) and β-tricalcium phosphate (β-TCP) were prepared from waste snail shells via thermal decomposition followed by chemical precipitation method with phosphoric acid in a one step process. The CAP produced was thereafter reacted with a pore forming agent solution of ammonium bicarbonate to formed carbonated apatite powder- ammonium bicarbonate scaffold composites (CAP-AMB) and was deployed in a bioactivity experiment with simulated body fluid (SBF) media. The phase purity, crystallinity, particle size, thermal behaviour, elemental composition, morphology as well as the functional groups of snail shells, synthesized CAP and CAP-AMB scaffold were assessed by XRD, FE-SEM, TGA, EDX, TEM and FT-IR. XRD and selected area electron diffraction (SAED) results confirmed the synthesized apatite as pure amorphous powder which upon heat treatment, transformed to polycrystalline powder. Analysis of FT-IR results revealed that the apatite produced from snail shells (SS) contains phosphates and hydroxyl functional groups. Furthermore, the formation of carbonated apatite was also confirmed from the FT-IR result with peaks which appeared at 882 and 1484 cm−1 respectively, thus depicting a B-type apatite. Microscopy analyses by FE-SEM and TEM indicated that the prepared apatite is composed of different morphologies in the range of 5 to 200 nm long. The presence of trace elements such as K, C, Na, Mg and Mg which could play crucial functions in biological applications were detected by EDX measurement alongside Ca and P. The mixture of CAP with AMB produced interconnected pores structure with porosity in the range of 35–67%. The bioactivity study of the SBF treated CAP-AMB composite confirmed apatite formation on the scaffold surface which totally covered the pores after seven days of incubation. Thus, waste biomaterial of snail shells origin can be use for the production of pure apatite that could be useful in medical application.
Graphical abstract
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3
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Divband B, Aghazadeh M, Al-Qaim ZH, Samiei M, Hussein FH, Shaabani A, Shahi S, Sedghi R. Bioactive chitosan biguanidine-based injectable hydrogels as a novel BMP-2 and VEGF carrier for osteogenesis of dental pulp stem cells. Carbohydr Polym 2021; 273:118589. [PMID: 34560990 DOI: 10.1016/j.carbpol.2021.118589] [Citation(s) in RCA: 49] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Revised: 07/24/2021] [Accepted: 08/17/2021] [Indexed: 12/31/2022]
Abstract
Nowadays, vascularization and mineralization of bone defects is the main bottleneck in the bone regeneration field that is needed to be overcome and developed. Here, we prepared novel in-situ formed injectable hydrogels based on chitosan biguanidine and carboxymethylcellulose loaded with vascular endothelial growth factor (VEGF) and recombinant Bone morphogenetic protein 2 (BMP-2) and studied its influence on osteoblastic differentiation of dental pulp stem cells (DPSCs). The sequential release behavior of the VEGF and BMP-2 from hydrogels adjusted with the pattern of normal human bone growth. MTT assay exhibited that these hydrogels were non-toxic and significantly increased DPSCs proliferation. The Real-time PCR and Western blot analysis on CG11/BMP2-VEGF showed significantly higher gene and protein expression of ALP, COL1α1, and OCN. These results were confirmed by mineralization assay by Alizarin Red staining and Alkaline phosphatase enzyme activity. Based on these evaluations, these hydrogel holds potential as an injectable bone tissue engineering platform.
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Affiliation(s)
- Baharak Divband
- Dental and Periodontal Research Center, Tabriz University of Medical Sciences, Tabriz, Iran; Inorganic Chemistry Department, Faculty of Chemistry, University of Tabriz, Iran.
| | - Marziyeh Aghazadeh
- Stem Cell Research Center and Oral Medicine, Department of Tabriz, University of Medical Sciences, Iran.
| | - Zahraa Haleem Al-Qaim
- Almustaqbal University College, - Medical Laebroterise, Analytic, Babylon 51005, Iraq
| | - Mohammad Samiei
- Dental and Periodontal Research Center, Tabriz University of Medical Sciences, Tabriz, Iran; Department of Endodontics, Dental School, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Falah H Hussein
- College of Pharmacy, University of Babylon, Babylon 51002, Iraq
| | - Alireza Shaabani
- Department of Polymer and Materials Chemistry, Faculty of Chemistry and Petroleum Sciences, Shahid Beheshti University, Tehran, GC 1983969411, Iran
| | - Shahriar Shahi
- Dental and Periodontal Research Center, Tabriz University of Medical Sciences, Tabriz, Iran; Department of Endodontics, Dental School, Tabriz University of Medical Sciences, Tabriz, Iran.
| | - Roya Sedghi
- Department of Polymer and Materials Chemistry, Faculty of Chemistry and Petroleum Sciences, Shahid Beheshti University, Tehran, GC 1983969411, Iran.
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Shanthamurthy CD, Gimeno A, Leviatan Ben-Arye S, Kumar NV, Jain P, Padler-Karavani V, Jiménez-Barbero J, Kikkeri R. Sulfation Code and Conformational Plasticity of l-Iduronic Acid Homo-Oligosaccharides Mimic the Biological Functions of Heparan Sulfate. ACS Chem Biol 2021; 16:2481-2489. [PMID: 34586794 DOI: 10.1021/acschembio.1c00582] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Recently, the activity of heparan sulfate (HS) has led to the discovery of many drug candidates that have the potential to impact both medical science and human health. However, structural diversity and synthetic challenges impede the progress of HS research. Here, we report a library of novel l-iduronic acid (IdoA)-based HS mimics that are highly tunable in conformation plasticity and sulfation patterns to produce many of the functions of native HS oligosaccharides. The NMR analysis of HS mimics confirmed that 4-O-sulfation enhances the population of the 1C4 geometry. Interestingly, the 1C4 conformer becomes exclusive upon additional 2-O-sulfation. HS mimic microarray binding studies with different growth factors showed that selectivity and avidity are greatly modulated by the oligosaccharide length, sulfation code, and IdoA conformation. Particularly, we have identified 4-O-sulfated IdoA disaccharide (I-21) as a potential ligand for vascular endothelial growth factor (VEGF165), which in a multivalent display modulated endothelial cell proliferation, migration, and angiogenesis. Overall, these results encourage the consideration of HS mimics for therapeutic applications.
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Affiliation(s)
| | - Ana Gimeno
- CIC bioGUNE, Basque Research Technology Alliance, BRTA, Bizkaia Technology park, 48160 Derio, Spain
| | - Shani Leviatan Ben-Arye
- Department of Cell Research and Immunology, The Shmunis School of Biomedicine and Cancer Research, The George S. Wise Faculty of Life Sciences, Tel Aviv University, Tel Aviv 69978, Israel
| | - Nanjundaswamy Vijendra Kumar
- Indian Institute of Science Education and Research, Dr. Homi Bhabha Road, Pune 411008, India
- Department of Chemistry, JSS College of Arts, Commerce & Science, Mysuru 570025, India
| | - Prashant Jain
- Indian Institute of Science Education and Research, Dr. Homi Bhabha Road, Pune 411008, India
| | - Vered Padler-Karavani
- Department of Cell Research and Immunology, The Shmunis School of Biomedicine and Cancer Research, The George S. Wise Faculty of Life Sciences, Tel Aviv University, Tel Aviv 69978, Israel
| | - Jesús Jiménez-Barbero
- CIC bioGUNE, Basque Research Technology Alliance, BRTA, Bizkaia Technology park, 48160 Derio, Spain
- Ikerbasque, Basque Foundation for Science, 48009 Bilbao, Spain
- Department Organic Chemistry II, Faculty of Science and Technology, UPV-EHU, 48940 Leioa, Spain
| | - Ragahvendra Kikkeri
- Indian Institute of Science Education and Research, Dr. Homi Bhabha Road, Pune 411008, India
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5
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Gao K, Wang X, Wang Z, He L, Lin J, Bai Z, Jiang K, Huang S, Zheng W, Liu L. Design of novel functionalized collagen-chitosan-MBG scaffolds for enhancing osteoblast differentiation in BMSCs. Biomed Mater 2021; 16. [PMID: 34670204 DOI: 10.1088/1748-605x/ac3146] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Accepted: 10/20/2021] [Indexed: 11/12/2022]
Abstract
Collagen and chitosan are two different kinds of natural biodegradable polymers commonly used in the regeneration of bone defects. Mesoporous bioactive glass (MBG) is a type of favorable bone filler which can effectively constitute an enlarged microenvironment to facilitate an exchange of important factors between the cells and scaffolds. Here we prepared a collagen-chitosan-MBG (C-C-MBG) scaffold which displayed significantly increased proliferation, differentiation and mineralization in bone mesenchymal stem cells (BMSCs). Additionally, we found that the scaffold can stimulate extra-cellular signal regulated kinase 1/2 (Erk1/2) activated Runx2 pathway, which is the predominant signaling pathway involved in osteoblast differentiation. Consistently, we observed that the scaffold can markedly enhance the expression ofType I collagen, Osteopontin(Opn), andRunx2, which are important osteoblastic marker genes implicated in the process of osteoblast differentiation. Therefore, we conclude that the composite scaffold can significantly promote the differentiation of BMSCs into osteoblasts by activating Erk1/2-Runx2 pathway. Our finding thereby implies that the C-C-MBG scaffold can possibly act as a potential biomaterial in the bone regeneration.
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Affiliation(s)
- Kai Gao
- Department of Biology and Chemistry, College of Liberal Arts and Sciences, National University of Defense Technology, Changsha, Hunan 410073, People's Republic of China.,Kunming Sanatorium, Kunming, Yunnan 650000, People's Republic of China
| | - Xiaoyan Wang
- Department of Biology and Chemistry, College of Liberal Arts and Sciences, National University of Defense Technology, Changsha, Hunan 410073, People's Republic of China
| | - Zhonghua Wang
- Kunming Sanatorium, Kunming, Yunnan 650000, People's Republic of China
| | - Lijiao He
- Army Medical University, Chongqing 400038, People's Republic of China
| | | | | | - Kai Jiang
- Department of Biology and Chemistry, College of Liberal Arts and Sciences, National University of Defense Technology, Changsha, Hunan 410073, People's Republic of China
| | - Shan Huang
- Department of Biology and Chemistry, College of Liberal Arts and Sciences, National University of Defense Technology, Changsha, Hunan 410073, People's Republic of China
| | - Weijia Zheng
- Department of Biology and Chemistry, College of Liberal Arts and Sciences, National University of Defense Technology, Changsha, Hunan 410073, People's Republic of China
| | - Long Liu
- Department of Biology and Chemistry, College of Liberal Arts and Sciences, National University of Defense Technology, Changsha, Hunan 410073, People's Republic of China
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6
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Galli M, Yao Y, Giannobile WV, Wang HL. Current and future trends in periodontal tissue engineering and bone regeneration. PLASTIC AND AESTHETIC RESEARCH 2021; 8. [PMID: 35765666 PMCID: PMC9236184 DOI: 10.20517/2347-9264.2020.176] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Periodontal tissue engineering involves a multi-disciplinary approach towards the regeneration of periodontal ligament, cementum and alveolar bone surrounding teeth, whereas bone regeneration specifically applies to ridge reconstruction in preparation for future implant placement, sinus floor augmentation and regeneration of peri-implant osseous defects. Successful periodontal regeneration is based on verifiable cementogenesis on the root surface, oblique insertion of periodontal ligament fibers and formation of new and vital supporting bone. Ultimately, regenerated periodontal and peri-implant support must be able to interface with surrounding host tissues in an integrated manner, withstand biomechanical forces resulting from mastication, and restore normal function and structure. Current regenerative approaches utilized in everyday clinical practice are mainly guided tissue/bone regeneration-based. Although these approaches have shown positive outcomes for small and medium-sized defects, predictability of clinical outcomes is heavily dependent on the defect morphology and clinical case selection. In many cases, it is still challenging to achieve predictable regenerative outcomes utilizing current approaches. Periodontal tissue engineering and bone regeneration (PTEBR) aims to improve the state of patient care by promoting reconstitution of damaged and lost tissues through the use of growth factors and signaling molecules, scaffolds, cells and gene therapy. The present narrative review discusses key advancements in PTEBR including current and future trends in preclinical and clinical research, as well as the potential for clinical translatability.
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Affiliation(s)
- Matthew Galli
- Department of Periodontics and Oral Medicine, University of Michigan School of Dentistry, Ann Arbor, MI 48109, USA
| | - Yao Yao
- Department of Periodontics and Oral Medicine, University of Michigan School of Dentistry, Ann Arbor, MI 48109, USA
| | - William V Giannobile
- Department of Periodontics and Oral Medicine, University of Michigan School of Dentistry, Ann Arbor, MI 48109, USA.,Biointerfaces Institute, North Campus Research Complex, University of Michigan School of Dentistry, Ann Arbor, MI 48109, USA.,Harvard School of Dental Medicine, Boston, MA 02115, USA
| | - Hom-Lay Wang
- Department of Periodontics and Oral Medicine, University of Michigan School of Dentistry, Ann Arbor, MI 48109, USA
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7
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Acri TM, Laird NZ, Jaidev LR, Meyerholz DK, Salem AK, Shin K. Nonviral Gene Delivery Embedded in Biomimetically Mineralized Matrices for Bone Tissue Engineering. Tissue Eng Part A 2020; 27:1074-1083. [PMID: 33086991 DOI: 10.1089/ten.tea.2020.0206] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
Abstract
Research in bone tissue engineering aims to design materials that are effective at generating bone without causing significant side effects. The osteogenic potential of combining matrices and protein growth factors has been well documented, however, improvements are necessary to achieve optimal therapeutic benefits upon clinical translation. In this article, rat calvarial defects were treated with gene-activated matrices (GAMs). The GAMs used were collagen sponges mineralized with a simulated body fluid (SBF) containing a nonviral gene delivery system. Both in vitro and in vivo studies were performed to determine the optimal mode of gene delivery. After 6 weeks, the defects were extracted to assess bone formation and tissue quality through histological and microcomputed tomography analyses. The optimal GAM consisted of a collagen sponge with polyethylenimine plasmid DNA (PEI-pDNA) complexes embedded in a calcium phosphate coating produced by SBF, which increased total bone formation by 39% compared with 19% for control samples. A follow-up in vivo study was performed to optimize the ratio of growth factors included in the GAM. The optimal ratio for supporting bone formation after 6 weeks of implantation was five parts of pBMP-2 to three parts pFGF-2. These studies demonstrated that collagen matrices biomimetically mineralized and activated with plasmids encoding fibroblast growth factor-2 (FGF-2) and bone morphogenetic protein-2 (BMP-2) can optimally improve bone regeneration outcomes. Impact statement Bone tissue engineering has explored both nonviral gene delivery and the concept of biomimetic mineralization. In this study, we combined these two concepts to further enhance bone regeneration outcomes. We demonstrated that embedding polyethylenimine (PEI)-based gene delivery within a mineral layer formed from simulated body fluid (SBF) immersion can increase bone formation rates. We also demonstrated that the ratio of growth factors utilized for matrix fabrication can impact the amount of bone formed in the defect site. This research highlights a combined approach using SBF and nonviral gene delivery both in vitro and in vivo and prepares the way for future optimization of synthetic gene activated matrices.
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Affiliation(s)
- Timothy M Acri
- Department of Pharmaceutical Sciences and Experimental Therapeutics, University of Iowa College of Pharmacy, Iowa City, Iowa, USA
| | - Noah Z Laird
- Department of Pharmaceutical Sciences and Experimental Therapeutics, University of Iowa College of Pharmacy, Iowa City, Iowa, USA
| | - Leela R Jaidev
- Department of Pharmaceutical Sciences and Experimental Therapeutics, University of Iowa College of Pharmacy, Iowa City, Iowa, USA
| | - David K Meyerholz
- Department of Pathology, University of Iowa Carver College of Medicine, Iowa City, Iowa, USA
| | - Aliasger K Salem
- Department of Pharmaceutical Sciences and Experimental Therapeutics, University of Iowa College of Pharmacy, Iowa City, Iowa, USA
| | - Kyungsup Shin
- Department of Orthodontics, University of Iowa College of Dentistry and Dental Clinics, Iowa City, Iowa, USA
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8
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Kauffmann F, Höhne C, Assaf AT, Vollkommer T, Semmusch J, Reitmeier A, Michel Stein J, Heiland M, Smeets R, Rutkowski R. The Influence of Local Pamidronate Application on Alveolar Dimensional Preservation after Tooth Extraction-An Animal Experimental Study. Int J Mol Sci 2020; 21:ijms21103616. [PMID: 32443867 PMCID: PMC7279330 DOI: 10.3390/ijms21103616] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2020] [Revised: 05/13/2020] [Accepted: 05/18/2020] [Indexed: 12/02/2022] Open
Abstract
The aim of this randomized, controlled animal exploratory trial was to investigate the influence of local application of aminobisphosphonate pamidronate during the socket preservation procedure. Mandibular premolars were extracted in five Göttingen minipigs. Two animals underwent socket preservation using BEGO OSS (n = 8 sockets) and three animals using BEGO OSS + Pamifos (15 mg) (n = 12 sockets). After jaw impression, cast models (baseline, eight weeks postoperative) were digitized using an inLab X5 scanner (Dentsply Sirona) and the generated STL data were superimposed and analyzed with GOM Inspect 2018 (GOM, Braunschweig). After 16 weeks, the lower jaws were prepared and examined using standard histological methods. In the test group (BEGO OSS + pamidronate), buccooral dimensional loss was significantly lower, both vestibulary (−0.80 ± 0.57 mm vs. −1.92 ± 0.63 mm; p = 0.00298) and lingually (−1.36 ± 0.58 mm vs. −2.56 ± 0.65 mm; p = 0.00104) compared with the control group (BEGO OSS). The test group showed a significant difference between vestibular and lingual dimensional loss (p = 0.04036). Histology showed cortical and cancellous bone in the alveolar sockets without signs of local inflammation. Adjuvant application of pamidronate during socket preservation reduces alveolar dimensional loss significantly. Further investigations with regard to dose–response relationships, volume effects, side effects, and a verification of the suitability in combination with other bone substitute materials (BSMs) are necessary.
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Affiliation(s)
- Frederic Kauffmann
- Department of Oral and Craniomaxillofacial Surgery, Center for Dental Medicine, University Medical Center Freiburg, 79106 Freiburg, Germany;
| | - Christian Höhne
- Department of Prosthodontics, Julius-Maximilians-University, 97070 Würzburg, Germany;
| | - Alexandre Thomas Assaf
- Department of Oral and Maxillofacial Surgery, University Medical Center Hamburg-Eppendorf, 20251 Hamburg, Germany; (A.T.A.); (T.V.); (J.S.); (R.S.)
| | - Tobias Vollkommer
- Department of Oral and Maxillofacial Surgery, University Medical Center Hamburg-Eppendorf, 20251 Hamburg, Germany; (A.T.A.); (T.V.); (J.S.); (R.S.)
| | - Jan Semmusch
- Department of Oral and Maxillofacial Surgery, University Medical Center Hamburg-Eppendorf, 20251 Hamburg, Germany; (A.T.A.); (T.V.); (J.S.); (R.S.)
| | - Aline Reitmeier
- Department of Laboratory Animal Science, University Medical Center Hamburg-Eppendorf, 20251 Hamburg, Germany;
| | - Jamal Michel Stein
- Department of Operative Dentistry, Periodontology and Preventive Dentistry, University Hospital Aachen (RWTH), 52074 Aachen, Germany;
| | - Max Heiland
- Charité – Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Department of Oral and Maxillofacial Surgery, 14197 Berlin, Germany;
| | - Ralf Smeets
- Department of Oral and Maxillofacial Surgery, University Medical Center Hamburg-Eppendorf, 20251 Hamburg, Germany; (A.T.A.); (T.V.); (J.S.); (R.S.)
- Department of Oral and Maxillofacial Surgery, Division of Regenerative Orofacial Medicine, University Medical Center Hamburg-Eppendorf, 20251 Hamburg, Germany
| | - Rico Rutkowski
- Department of Oral and Maxillofacial Surgery, University Medical Center Hamburg-Eppendorf, 20251 Hamburg, Germany; (A.T.A.); (T.V.); (J.S.); (R.S.)
- Correspondence: ; Tel.: +49-1522-2887432
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9
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May RD, Frauchiger DA, Albers CE, Tekari A, Benneker LM, Klenke FM, Hofstetter W, Gantenbein B. Application of Cytokines of the Bone Morphogenetic Protein (BMP) Family in Spinal Fusion - Effects on the Bone, Intervertebral Disc and Mesenchymal Stromal Cells. Curr Stem Cell Res Ther 2020; 14:618-643. [PMID: 31455201 PMCID: PMC7040507 DOI: 10.2174/1574888x14666190628103528] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2019] [Revised: 04/30/2019] [Accepted: 05/02/2019] [Indexed: 12/17/2022]
Abstract
Low back pain is a prevalent socio-economic burden and is often associated with damaged or degenerated intervertebral discs (IVDs). When conservative therapy fails, removal of the IVD (discectomy), followed by intersomatic spinal fusion, is currently the standard practice in clinics. The remaining space is filled with an intersomatic device (cage) and with bone substitutes to achieve disc height compensation and bone fusion. As a complication, in up to 30% of cases, spinal non-fusions result in a painful pseudoarthrosis. Bone morphogenetic proteins (BMPs) have been clinically applied with varied outcomes. Several members of the BMP family, such as BMP2, BMP4, BMP6, BMP7, and BMP9, are known to induce osteogenesis. Questions remain on why hyper-physiological doses of BMPs do not show beneficial effects in certain patients. In this respect, BMP antagonists secreted by mesenchymal cells, which might interfere with or block the action of BMPs, have drawn research attention as possible targets for the enhancement of spinal fusion or the prevention of non-unions. Examples of these antagonists are noggin, gremlin1 and 2, chordin, follistatin, BMP3, and twisted gastrulation. In this review, we discuss current evidence of the osteogenic effects of several members of the BMP family on osteoblasts, IVD cells, and mesenchymal stromal cells. We consider in vitro and in vivo studies performed in human, mouse, rat, and rabbit related to BMP and BMP antagonists in the last two decades. We give insights into the effects that BMP have on the ossification of the spine. Furthermore, the benefits, pitfalls, and possible safety concerns using these cytokines for the improvement of spinal fusion are discussed.
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Affiliation(s)
- Rahel Deborah May
- Department for BioMedical Research (DBMR), University of Bern, Bern, Switzerland
| | | | - Christoph Emmanuel Albers
- Department of Orthopaedic Surgery and Traumatology, Inselspital, University of Bern, Bern, Switzerland
| | - Adel Tekari
- Laboratory of Molecular and Cellular Screening Processes, Centre of Biotechnology of Sfax, University of Sfax, Sfax, Tunisia
| | - Lorin Michael Benneker
- Department of Orthopaedic Surgery and Traumatology, Inselspital, University of Bern, Bern, Switzerland
| | - Frank Michael Klenke
- Department of Orthopaedic Surgery and Traumatology, Inselspital, University of Bern, Bern, Switzerland
| | - Willy Hofstetter
- Department for BioMedical Research (DBMR), University of Bern, Bern, Switzerland
| | - Benjamin Gantenbein
- Department for BioMedical Research (DBMR), University of Bern, Bern, Switzerland.,Department of Orthopaedic Surgery and Traumatology, Inselspital, University of Bern, Bern, Switzerland
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10
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Zhao W, Li Y, Zhou A, Chen X, Li K, Chen S, Qiao B, Jiang D. Controlled release of basic fibroblast growth factor from a peptide biomaterial for bone regeneration. ROYAL SOCIETY OPEN SCIENCE 2020; 7:191830. [PMID: 32431879 PMCID: PMC7211882 DOI: 10.1098/rsos.191830] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2019] [Accepted: 02/12/2020] [Indexed: 05/13/2023]
Abstract
Self-assembled peptide scaffolds based on D-RADA16 are an important matrix for controlled drug release and three-dimensional cell culture. In this work, D-RADA16 peptide hydrogels were coated on artificial bone composed of nano-hydroxyapatite/polyamide 66 (nHA/PA66) to obtain a porous drug-releasing structure for treating bone defects. The developed materials were characterized via transmission electron microscopy and scanning electron microscopy. The proliferation and adhesion of bone mesenchymal stem cells (BMSCs) were examined by confocal laser microscopy and CCK-8 experiments. The osteogenic ability of the porous materials towards bone BMSCs was examined in vitro by staining with Alizarin Red S and alkaline phosphatase, and bioactivity was evaluated in vivo. The results revealed that nHA/PA66/D-RADA16/bFGF reduces the degradation rate of D-RADA16 hydrogels and prolongs sustained release of bFGF, which would promote BMSCs proliferation, adhesion and osteogenesis in vitro and bone repair in vivo. Thus, it deserves more attention and is worthy of further research.
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Affiliation(s)
- WeiKang Zhao
- Department of Orthopaedics, The First Affiliated Hospital of Chongqing Medical University, No. 1 Youyi Road, Chongqing, Yuzhong District 400016, People's Republic of China
- Department of Orthopaedics, Third Affiliated Hospital of Chongqing Medical University, No. 1 Shuanghu Road, Chongqing City, Yubei District 401120, People's Republic of China
| | - Yuling Li
- Department of Orthopaedics, Affiliated Hospital of North Sichuan Medical College, No. 63 Wenhua Road, Nanchong City, Sichuan Province 637000, People's Republic of China
| | - Ao Zhou
- Department of Orthopaedics, Third Affiliated Hospital of Chongqing Medical University, No. 1 Shuanghu Road, Chongqing City, Yubei District 401120, People's Republic of China
| | - Xiaojun Chen
- Department of Orthopaedics, Hospital (T.C.M) Affiliated to Southwest Medical University, No. 182 Chunhui Road, Luzhou City, Sichuan Province, 646000, People's Republic of China
| | - Kai Li
- Department of Orthopaedics, The First Affiliated Hospital of Chongqing Medical University, No. 1 Youyi Road, Chongqing, Yuzhong District 400016, People's Republic of China
- Department of Orthopaedics, Third Affiliated Hospital of Chongqing Medical University, No. 1 Shuanghu Road, Chongqing City, Yubei District 401120, People's Republic of China
| | - Sinan Chen
- Department of Orthopaedics, The First Affiliated Hospital of Chongqing Medical University, No. 1 Youyi Road, Chongqing, Yuzhong District 400016, People's Republic of China
- Department of Orthopaedics, Third Affiliated Hospital of Chongqing Medical University, No. 1 Shuanghu Road, Chongqing City, Yubei District 401120, People's Republic of China
| | - Bo Qiao
- Department of Orthopaedics, The First Affiliated Hospital of Chongqing Medical University, No. 1 Youyi Road, Chongqing, Yuzhong District 400016, People's Republic of China
| | - Dianming Jiang
- Department of Orthopaedics, The First Affiliated Hospital of Chongqing Medical University, No. 1 Youyi Road, Chongqing, Yuzhong District 400016, People's Republic of China
- Department of Orthopaedics, Third Affiliated Hospital of Chongqing Medical University, No. 1 Shuanghu Road, Chongqing City, Yubei District 401120, People's Republic of China
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11
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Diao S, Yang H, Cao Y, Yang D, Fan Z. IGF2 enhanced the osteo-/dentinogenic and neurogenic differentiation potentials of stem cells from apical papilla. J Oral Rehabil 2019; 47 Suppl 1:55-65. [PMID: 31291686 DOI: 10.1111/joor.12859] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2019] [Revised: 07/02/2019] [Accepted: 07/04/2019] [Indexed: 12/27/2022]
Abstract
OBJECTIVES In dental tissue engineering, niche is important for maintaining stem cell function and regenerating the dental tissues. However, there is limited knowledge for the growth factors in niche to maintain the function of stem cells. In this study, we investigated the effect of IGF2, a growth factor in stem cells from apical papilla (SCAPs) niche, on differentiation and proliferation potentials of SCAPs. MATERIALS AND METHODS Recombinant human IGF2 protein (rhIGF2) was used. Cell counting kit-8 assay, Carboxyfluorescein succinimidyl ester assay, alkaline phosphatase (ALP) activity, Alizarin Red staining, quantitative calcium analysis, immunofluorescence staining and real-time RT-PCR were performed to investigate the cell proliferation and differentiation potentials of SCAPs. And proteomic analysis was used to identify the differential secreted proteins. RESULTS By ALP activity assay, we found that 5 ng/mL rhIGF2 might be the optimal concentration for treatment. Then, Alizarin Red staining, quantitative calcium analysis and osteogenesis-related gene expression results showed that 5 ng/mL rhIGF2 could enhance the osteo-/dentinogenic differentiation potentials in SCAPs. Immunofluorescence staining and real-time RT-PCR results showed that neurogenic markers were significantly induced by 5 ng/mL rhIGF2 in SCAPs. Then, CCK-8 assay and CFSE assay results showed that 5 ng/mL rhIGF2 could enhance the cell proliferation in SCAPs. Furthermore, proteomic analysis showed that IGF2 could induce some secreted proteins which function related to the osteogenesis, neurogenesis and cell proliferation. CONCLUSIONS Our results identified that IGF2 might be the potential mediator in niche to promote SCAP function and dental tissue regeneration.
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Affiliation(s)
- Shu Diao
- Laboratory of Molecular Signaling and Stem Cells Therapy, Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, Capital Medical University School of Stomatology, Beijing, China.,Department of Pediatric dentistry, Capital Medical University School of Stomatology, Beijing, China
| | - Haoqing Yang
- Laboratory of Molecular Signaling and Stem Cells Therapy, Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, Capital Medical University School of Stomatology, Beijing, China
| | - Yangyang Cao
- Laboratory of Molecular Signaling and Stem Cells Therapy, Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, Capital Medical University School of Stomatology, Beijing, China
| | - Dongmei Yang
- Laboratory of Molecular Signaling and Stem Cells Therapy, Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, Capital Medical University School of Stomatology, Beijing, China.,Department of Pediatric dentistry, Capital Medical University School of Stomatology, Beijing, China
| | - Zhipeng Fan
- Laboratory of Molecular Signaling and Stem Cells Therapy, Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, Capital Medical University School of Stomatology, Beijing, China
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12
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Del Fabbro M, Panda S, Taschieri S. Adjunctive Use of Plasma Rich in Growth Factors for Improving Alveolar Socket Healing: A Systematic Review. J Evid Based Dent Pract 2019; 19:166-176. [DOI: 10.1016/j.jebdp.2018.11.003] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2018] [Revised: 11/13/2018] [Accepted: 11/19/2018] [Indexed: 01/03/2023]
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13
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Munir A, Døskeland A, Avery SJ, Fuoco T, Mohamed-Ahmed S, Lygre H, Finne-Wistrand A, Sloan AJ, Waddington RJ, Mustafa K, Suliman S. Efficacy of copolymer scaffolds delivering human demineralised dentine matrix for bone regeneration. J Tissue Eng 2019; 10:2041731419852703. [PMID: 31210921 PMCID: PMC6545639 DOI: 10.1177/2041731419852703] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2019] [Accepted: 05/03/2019] [Indexed: 02/06/2023] Open
Abstract
Poly(L-lactide-co-ε-caprolactone) scaffolds were functionalised by 10 or 20 µg/mL of human demineralised dentine matrix. Release kinetics up to 21 days and their osteogenic potential on human bone marrow stromal cells after 7 and 21 days were studied. A total of 390 proteins were identified by mass spectrometry. Bone regeneration proteins showed initial burst of release. Human bone marrow stromal cells were cultured on scaffolds physisorbed with 20 µg/mL and cultured in basal medium (DDM group) or physisorbed and cultured in osteogenic medium or cultured on non-functionalised scaffolds in osteogenic medium. The human bone marrow stromal cells proliferated less in demineralised dentine matrix group and activated ERK/1/2 after both time points. Cells on DDM group showed highest expression of IL-6 and IL-8 at 7 days and expressed higher collagen type 1 alpha 2, SPP1 and bone morphogenetic protein-2 until 21 days. Extracellular protein revealed higher collagen type 1 and bone morphogenetic protein-2 at 21 days in demineralised dentine matrix group. Cells on DDM group showed signs of mineralisation. The functionalised scaffolds were able to stimulate osteogenic differentiation of human bone marrow stromal cells.
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Affiliation(s)
- Arooj Munir
- Centre for Clinical Dental Research, Department of Clinical Dentistry, Faculty of Medicine, University of Bergen, Bergen, Norway
| | - Anne Døskeland
- Department of Biomedicine, University of Bergen, Bergen, Norway
| | - Steven J Avery
- Department of Oral and Biomedical Sciences, School of Dentistry, Cardiff University, Cardiff, UK.,Cardiff Institute for Tissue Engineering and Repair (CITER), Cardiff, UK
| | - Tiziana Fuoco
- Department of Fibre and Polymer Technology, KTH Royal Institute of Technology, Stockholm, Sweden
| | - Samih Mohamed-Ahmed
- Centre for Clinical Dental Research, Department of Clinical Dentistry, Faculty of Medicine, University of Bergen, Bergen, Norway
| | - Henning Lygre
- Centre for Clinical Dental Research, Department of Clinical Dentistry, Faculty of Medicine, University of Bergen, Bergen, Norway
| | - Anna Finne-Wistrand
- Department of Fibre and Polymer Technology, KTH Royal Institute of Technology, Stockholm, Sweden
| | - Alastair J Sloan
- Department of Oral and Biomedical Sciences, School of Dentistry, Cardiff University, Cardiff, UK.,Cardiff Institute for Tissue Engineering and Repair (CITER), Cardiff, UK
| | - Rachel J Waddington
- Department of Oral and Biomedical Sciences, School of Dentistry, Cardiff University, Cardiff, UK.,Cardiff Institute for Tissue Engineering and Repair (CITER), Cardiff, UK
| | - Kamal Mustafa
- Centre for Clinical Dental Research, Department of Clinical Dentistry, Faculty of Medicine, University of Bergen, Bergen, Norway
| | - Salwa Suliman
- Centre for Clinical Dental Research, Department of Clinical Dentistry, Faculty of Medicine, University of Bergen, Bergen, Norway
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14
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Kang W, Liang Q, Du L, Shang L, Wang T, Ge S. Sequential application of bFGF and BMP-2 facilitates osteogenic differentiation of human periodontal ligament stem cells. J Periodontal Res 2019; 54:424-434. [DOI: 10.1111/jre.12644] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2018] [Revised: 12/12/2018] [Accepted: 02/01/2019] [Indexed: 12/31/2022]
Affiliation(s)
- Wenyan Kang
- Shandong Provincial Key Laboratory of Oral Tissue Regeneration; School of Stomatology; Shandong University; Jinan China
- Department of Periodontology; School of Stomatology; Shandong University; Jinan China
| | - Qianyu Liang
- Shandong Provincial Key Laboratory of Oral Tissue Regeneration; School of Stomatology; Shandong University; Jinan China
- Department of Periodontology; School of Stomatology; Shandong University; Jinan China
| | - Lingqian Du
- Department of Stomatology; The Second Hospital of Shandong University; Jinan China
| | - Lingling Shang
- Shandong Provincial Key Laboratory of Oral Tissue Regeneration; School of Stomatology; Shandong University; Jinan China
- Department of Periodontology; School of Stomatology; Shandong University; Jinan China
| | - Ting Wang
- Shandong Provincial Key Laboratory of Oral Tissue Regeneration; School of Stomatology; Shandong University; Jinan China
- Department of Periodontology; School of Stomatology; Shandong University; Jinan China
| | - Shaohua Ge
- Shandong Provincial Key Laboratory of Oral Tissue Regeneration; School of Stomatology; Shandong University; Jinan China
- Department of Periodontology; School of Stomatology; Shandong University; Jinan China
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15
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Abstract
Bone morphogenetic proteins (BMPs) constitute the largest subdivision of the transforming growth factor-β family of ligands. BMPs exhibit widespread utility and pleiotropic, context-dependent effects, and the strength and duration of BMP pathway signaling is tightly regulated at numerous levels via mechanisms operating both inside and outside the cell. Defects in the BMP pathway or its regulation underlie multiple human diseases of different organ systems. Yet much remains to be discovered about the BMP pathway in its original context, i.e., the skeleton. In this review, we provide a comprehensive overview of the intricacies of the BMP pathway and its inhibitors in bone development, homeostasis, and disease. We frame the content of the review around major unanswered questions for which incomplete evidence is available. First, we consider the gene regulatory network downstream of BMP signaling in osteoblastogenesis. Next, we examine why some BMP ligands are more osteogenic than others and what factors limit BMP signaling during osteoblastogenesis. Then we consider whether specific BMP pathway components are required for normal skeletal development, and if the pathway exerts endogenous effects in the aging skeleton. Finally, we propose two major areas of need of future study by the field: greater resolution of the gene regulatory network downstream of BMP signaling in the skeleton, and an expanded repertoire of reagents to reliably and specifically inhibit individual BMP pathway components.
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Affiliation(s)
- Jonathan W Lowery
- Division of Biomedical Science, Marian University College of Osteopathic Medicine , Indianapolis, Indiana ; and Department of Developmental Biology, Harvard School of Dental Medicine , Boston, Massachusetts
| | - Vicki Rosen
- Division of Biomedical Science, Marian University College of Osteopathic Medicine , Indianapolis, Indiana ; and Department of Developmental Biology, Harvard School of Dental Medicine , Boston, Massachusetts
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16
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Lee E, Ko JY, Kim J, Park JW, Lee S, Im GI. Osteogenesis and angiogenesis are simultaneously enhanced in BMP2-/VEGF-transfected adipose stem cells through activation of the YAP/TAZ signaling pathway. Biomater Sci 2019; 7:4588-4602. [DOI: 10.1039/c9bm01037h] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
While bone has the capability to heal itself, there is a great difficulty in reconstituting large bone defects created by heavy trauma or the resection of malignant tumors.
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Affiliation(s)
- Eugene Lee
- Research Institute for Integrative Regenerative Biomedical Engineering
- Dongguk University
- Goyang 10326
- Republic of Korea
- Department of Orthopaedics
| | - Ji-Yun Ko
- Research Institute for Integrative Regenerative Biomedical Engineering
- Dongguk University
- Goyang 10326
- Republic of Korea
| | - Juyoung Kim
- Research Institute for Integrative Regenerative Biomedical Engineering
- Dongguk University
- Goyang 10326
- Republic of Korea
| | - Jeong-Won Park
- Research Institute for Integrative Regenerative Biomedical Engineering
- Dongguk University
- Goyang 10326
- Republic of Korea
| | - Songhee Lee
- Research Institute for Integrative Regenerative Biomedical Engineering
- Dongguk University
- Goyang 10326
- Republic of Korea
| | - Gun-Il Im
- Research Institute for Integrative Regenerative Biomedical Engineering
- Dongguk University
- Goyang 10326
- Republic of Korea
- Department of Orthopaedics
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17
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Vascularization converts the lineage fate of bone mesenchymal stem cells to endothelial cells in tissue-engineered bone grafts by modulating FGF2-RhoA/ROCK signaling. Cell Death Dis 2018; 9:959. [PMID: 30237398 PMCID: PMC6147920 DOI: 10.1038/s41419-018-0999-6] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2018] [Revised: 08/06/2018] [Accepted: 08/20/2018] [Indexed: 01/03/2023]
Abstract
The prevascularization of tissue-engineered bone grafts (TEBGs) has been shown to accelerate capillary vessel ingrowth in bone defect remodeling and to enhance new bone formation. However, the exact mechanisms behind this positive effect remain unknown. Here, we report that basic fibroblast growth factor (FGF2)-Ras homolog gene family member A (RhoA)/Rho-associated protein kinase (ROCK) signaling functions as a molecular switch to regulate the lineage fate of bone mesenchymal stem cells (BMSCs) and that prevascularization promotes the cell fate switch, which contributes to increased bone regeneration with the use of prevascularized TEBGs compared with control TEBGs. Prevascularized TEBGs enhanced the in vivo endothelial differentiation of BMSCs by inhibiting RhoA/ROCK signaling. In vitro data more clearly showed that BMSCs differentiated into von Willebrand factor (vWF)-positive endothelial cells, and FGF2-induced inhibition of RhoA/ROCK signaling played a key role. Our novel findings uncovered a new mechanism that stimulates the increased vascularization of engineered bone and enhanced regeneration by promoting the endothelial differentiation of BMSCs implanted in TEBGs. These results offer a new molecular target to regulate TEBG-induced bone regeneration.
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18
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Kuttappan S, Mathew D, Jo JI, Tanaka R, Menon D, Ishimoto T, Nakano T, Nair SV, Nair MB, Tabata Y. Dual release of growth factor from nanocomposite fibrous scaffold promotes vascularisation and bone regeneration in rat critical sized calvarial defect. Acta Biomater 2018; 78:36-47. [PMID: 30067947 DOI: 10.1016/j.actbio.2018.07.050] [Citation(s) in RCA: 57] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2018] [Revised: 07/02/2018] [Accepted: 07/27/2018] [Indexed: 11/27/2022]
Abstract
A promising strategy for augmenting bone formation involves the local delivery of multiple osteoinductive and vasculogenic growth factors. However, success depends on sustained growth factor release and its appropriate combination to induce stem cells and osteogenic cells at the bony site. Herein, we have developed a nanocomposite fibrous scaffold loaded with fibroblast growth factor 2 (FGF2), vascular endothelial growth factor (VEGF) and bone morphogenetic protein 2 (BMP2) and its ability to promote vascularisation and bone regeneration in critical sized calvarial defect was compared to the scaffold with VEGF + BMP2 and FGF2 + BMP2. Simple loading of growth factors on the scaffold could provide a differential release pattern, both in vitro and in vivo (VEGF release for 1 week where as BMP2 and FGF2 release for 3 weeks). Among all the groups, dual growth factor loaded scaffold (VEGF + BMP2 & FGF2 + BMP2) enhanced vascularisation and new bone formation, but there was no difference between FGF2 and VEGF loaded scaffolds although its release pattern was different. FGF2 mainly promoted stem cell migration, whereas VEGF augmented new blood vessel formation at the defect site. This study suggests that biomimetic nanocomposite scaffold is a promising growth factor delivery vehicle to improve bone regeneration in critical sized bone defects. STATEMENT OF SIGNIFICANCE Many studies have shown the effect of growth factors like VEGF-BMP2 or FGF2-BMP2 in enhancing bone formation in critical sized defects, but there are no reports that demonstrate the direct comparison of VEGF-BMP2 and FGF2-BMP2. In this study, we have developed a nanocomposite fibrous scaffold that could differentially release growth factors like VEGF, BMP2 and FGF2 (VEGF release for 1 week where as BMP2 and FGF2 release for 3 weeks), which in turn promoted neovascularisation and new bone formation in critical sized defects. There was no difference in vascularisation and bone formation induced by VEGF + BMP2 or FGF2 + BMP2. The growth factor was loaded in a simple manner, which would ensure ease of use for the end-user, especially for the surgeons treating a patient in an operating room.
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19
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Zhang X, Chen S, Liu Y, Zhang P, Ge Y, Guo J, Wu G, Zhou Y. Heterodimeric BMP-2/7 exhibits different osteoinductive effects in human and murine cells. Growth Factors 2018; 36:141-152. [PMID: 30238816 DOI: 10.1080/08977194.2018.1477139] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
As robust osteoinductive cytokines, bone morphogenetic proteins (BMPs) play a significant role in bone tissue engineering. Constituted of two different polypeptides, heterodimeric BMPs are more effective than the homodimers in bone formation. While most studies focused on the murine cell lines, such as murine preosteoblasts MC3T3-E1, the role of heterodimeric BMPs in the osteogenic differentiation of human cells remains uncertain, which hinders their application to practical treatment. In this study, we compared the osteoinductive effects of BMP-2/7 heterodimer in human adipose-derived stem cells (hASCs) with their homodimers BMP-2 and BMP-7, in which MC3T3-E1 cells were utilized as a positive control. The results indicated that BMP-2/7 was not a stronger inducer during the osteogenic differentiation of hASCs as that for MC3T3-E1, and extracellular-signal-regulated kinase signaling played a role in the different effects of BMP-2/7 between hASCs and MC3T3-E1. Our study demonstrates the osteoinductive effects of heterodimeric BMP-2/7 present in a cell-specific pattern and cautions should be taken when applying heterodimeric BMP-2/7 to clinical practice.
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Affiliation(s)
- Xiao Zhang
- a Department of Prosthodontics , Peking University School and Hospital of Stomatology , Beijing , China
- b National Engineering Lab for Digital and Material Technology of Stomatology , Beijing , China
- c National Clinical Research Center for Oral Diseases , Beijing , China
- d Beijing Key Laboratory for Digital Stomatology , Beijing , China
| | - Si Chen
- a Department of Prosthodontics , Peking University School and Hospital of Stomatology , Beijing , China
- b National Engineering Lab for Digital and Material Technology of Stomatology , Beijing , China
- c National Clinical Research Center for Oral Diseases , Beijing , China
- d Beijing Key Laboratory for Digital Stomatology , Beijing , China
| | - Yunsong Liu
- a Department of Prosthodontics , Peking University School and Hospital of Stomatology , Beijing , China
- b National Engineering Lab for Digital and Material Technology of Stomatology , Beijing , China
- c National Clinical Research Center for Oral Diseases , Beijing , China
- d Beijing Key Laboratory for Digital Stomatology , Beijing , China
| | - Ping Zhang
- a Department of Prosthodontics , Peking University School and Hospital of Stomatology , Beijing , China
- b National Engineering Lab for Digital and Material Technology of Stomatology , Beijing , China
- c National Clinical Research Center for Oral Diseases , Beijing , China
- d Beijing Key Laboratory for Digital Stomatology , Beijing , China
| | - Yanjun Ge
- a Department of Prosthodontics , Peking University School and Hospital of Stomatology , Beijing , China
- b National Engineering Lab for Digital and Material Technology of Stomatology , Beijing , China
- c National Clinical Research Center for Oral Diseases , Beijing , China
- d Beijing Key Laboratory for Digital Stomatology , Beijing , China
| | - Jing Guo
- e Department of Oral Cell Biology , Academic Centre for Dentistry Amsterdam (ACTA), Research Institute MOVE, VU University and University of Amsterdam , LA Amsterdam , The Netherland
| | - Gang Wu
- f Department of Oral Implantology and Prosthetic Dentistry , Academic Centre for Dentistry Amsterdam (ACTA), Research Institute MOVE, VU University and University of Amsterdam , LA Amsterdam , The Netherland
| | - Yongsheng Zhou
- a Department of Prosthodontics , Peking University School and Hospital of Stomatology , Beijing , China
- b National Engineering Lab for Digital and Material Technology of Stomatology , Beijing , China
- c National Clinical Research Center for Oral Diseases , Beijing , China
- d Beijing Key Laboratory for Digital Stomatology , Beijing , China
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20
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Li ZJ, Lu CT, Lai RF. Ectopic osteogenesis effect of antigen-extracted xenogeneic cancellous bone graft with chitosan/rhBMP-2/bFGF sequential sustained-release nanocapsules. J Biomater Appl 2018; 33:23-43. [PMID: 29498305 DOI: 10.1177/0885328218761193] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
To explore the ectopic osteogenesis effect of sequential sustained release application of recombinant human bone morphogenic protein-2 (rhBMP-2) and basic fibroblast growth factor (bFGF). Antigen-extracted xenogeneic cancellous bone coupled with growth factor-loaded chitosan nanocapsules were implanted in rats in intramuscular site in accordance with the following experimental pattern: group A: simultaneous burst release of rhBMP-2 and bFGF; group B: simultaneous sustained release of rhBMP-2 and bFGF; group C: preferential burst release of rhBMP-2, then sustained release of bFGF; group D: preferential burst release of bFGF, then sustained release of rhBMP-2; group E: sustained release of rhBMP-2 alone; group F: sustained release of bFGF alone, blank control group G: antigen-extracted xenogeneic cancellous bone graft only; negative control group H: not filled with anything. Specimens were obtained after executing the animals at 2 and 4 weeks for general observation and weighing, calcium content detection, micro-CT scanning and bone parameter measurement analysis, H&E staining, ALP staining and CD34 staining. The materials weight of A-2, B-2, C-2, A-4, B-4, C-4, D-4 and E-4 were significantly higher than that of preoperative materials ( P < 0.05). The concentration of calcium of group B-4 was the highest (414.7 ± 12.03 mg/dl). Micro-CT scanning and bone parameter measurement analysis showed that the values of bone mineral density and trabecular thickness of group A, B, D, E at 4 weeks were both higher than the ones at 2 weeks ( P < 0.05), and both the bone mineral density (367.52 ± 11.64 mg/cc) and the trabecular thickness (126.17 ± 11.36 μm) of group B-4 were the highest. H&E staining showed that a large region of calcified cartilage and haemopoietic tissues were newly formed, especially in group B-4. ALP staining and CD34 staining showed the most positive expression region in group B-4. Therefore, we conclude that simultaneous sustained release of rhBMP-2 and bFGF is the ideal way to release drug, and has better inducement of antigen-extracted xenogeneic cancellous bone graft.
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Affiliation(s)
- Ze-Jian Li
- 1 Medical Centre of Stomatology, First Affiliated Hospital, Jinan University, Guangzhou, China
| | - Chun-Ting Lu
- 2 Science and Education Office, First Affiliated Hospital, Jinan University, Guangzhou, China
| | - Ren-Fa Lai
- 1 Medical Centre of Stomatology, First Affiliated Hospital, Jinan University, Guangzhou, China
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21
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Deng M, Luo K, Hou T, Luo F, Xie Z, Zhang Z, Yang A, Yu B, Yi S, Tan J, Dong S, Xu J. IGFBP3 deposited in the human umbilical cord mesenchymal stem cell-secreted extracellular matrix promotes bone formation. J Cell Physiol 2018; 233:5792-5804. [PMID: 29219174 PMCID: PMC6220941 DOI: 10.1002/jcp.26342] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2017] [Accepted: 11/27/2017] [Indexed: 01/07/2023]
Abstract
The extracellular matrix (ECM) contains rich biological cues for cell recruitment, proliferationm, and even differentiation. The osteoinductive potential of scaffolds could be enhanced through human bone marrow mesenchymal stem cell (hBMSC) directly depositing ECM on surface of scaffolds. However, the role and mechanism of human umbilical cord mesenchymal stem cells (hUCMSC)-secreted ECM in bone formation remain unknown. We tested the osteoinductive properties of a hUCMSC-secreted ECM construct (hUCMSC-ECM) in a large femur defect of a severe combined immunodeficiency (SCID) mouse model. The hUCMSC-ECM improved the colonization of endogenous MSCs and bone regeneration, similar to the hUCMSC-seeded scaffold and superior to the scaffold substrate. Besides, the hUCMSC-ECM enhanced the promigratory molecular expressions of the homing cells, including CCR2 and TβRI. Furthermore, the hUCMSC-ECM increased the number of migrated MSCs by nearly 3.3 ± 0.1-fold, relative to the scaffold substrate. As the most abundant cytokine deposited in the hUCMSC-ECM, insulin-like growth factor binding protein 3 (IGFBP3) promoted hBMSC migration in the TβRI/II- and CCR2-dependent mechanisms. The hUCMSC-ECM integrating shRNA-mediated silencing of Igfbp3 that down-regulated IGFBP3 expression by approximately 60%, reduced the number of migrated hBMSCs by 47%. In vivo, the hUCMSC-ECM recruited 10-fold more endogenous MSCs to initiate bone formation compared to the scaffold substrate. The knock-down of Igfbp3 in the hUCMSC-ECM inhibited nearly 60% of MSC homing and bone regeneration capacity. This research demonstrates that IGFBP3 is an important MSC homing molecule and the therapeutic potential of hUCMSC-ECM in bone regeneration is enhanced by improving MSC homing in an IGFBP3-dependent mechanism.
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Affiliation(s)
- Moyuan Deng
- National and Regional United Engineering Lab of Tissue Engineering, Department of Orthopaedics, Southwest Hospital, The Third Military Medical University, Chongqing, China
| | - Keyu Luo
- National and Regional United Engineering Lab of Tissue Engineering, Department of Orthopaedics, Southwest Hospital, The Third Military Medical University, Chongqing, China
| | - Tianyong Hou
- National and Regional United Engineering Lab of Tissue Engineering, Department of Orthopaedics, Southwest Hospital, The Third Military Medical University, Chongqing, China
| | - Fei Luo
- National and Regional United Engineering Lab of Tissue Engineering, Department of Orthopaedics, Southwest Hospital, The Third Military Medical University, Chongqing, China
| | - Zhao Xie
- National and Regional United Engineering Lab of Tissue Engineering, Department of Orthopaedics, Southwest Hospital, The Third Military Medical University, Chongqing, China
| | - Zehua Zhang
- National and Regional United Engineering Lab of Tissue Engineering, Department of Orthopaedics, Southwest Hospital, The Third Military Medical University, Chongqing, China
| | - Aijun Yang
- National and Regional United Engineering Lab of Tissue Engineering, Department of Orthopaedics, Southwest Hospital, The Third Military Medical University, Chongqing, China
| | - Bo Yu
- National and Regional United Engineering Lab of Tissue Engineering, Department of Orthopaedics, Southwest Hospital, The Third Military Medical University, Chongqing, China
| | - Shaoxuan Yi
- National and Regional United Engineering Lab of Tissue Engineering, Department of Orthopaedics, Southwest Hospital, The Third Military Medical University, Chongqing, China
| | - Jiulin Tan
- National and Regional United Engineering Lab of Tissue Engineering, Department of Orthopaedics, Southwest Hospital, The Third Military Medical University, Chongqing, China
| | - Shiwu Dong
- National and Regional United Engineering Lab of Tissue Engineering, Department of Orthopaedics, Southwest Hospital, The Third Military Medical University, Chongqing, China.,Department of Biomedical Materials Science, College of Biomedical Engineering, Third Military Medical University, Chongqing, China
| | - Jianzhong Xu
- National and Regional United Engineering Lab of Tissue Engineering, Department of Orthopaedics, Southwest Hospital, The Third Military Medical University, Chongqing, China
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22
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Zhang Y, Ruan Z, Shen M, Tan L, Huang W, Wang L, Huang Y. Clinical effect of platelet-rich fibrin on the preservation of the alveolar ridge following tooth extraction. Exp Ther Med 2018; 15:2277-2286. [PMID: 29456635 PMCID: PMC5795808 DOI: 10.3892/etm.2018.5696] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2017] [Accepted: 10/13/2017] [Indexed: 11/18/2022] Open
Abstract
The aim of the present study was to evaluate the clinical efficacy of platelet-rich fibrin (PRF) in preserving the alveolar ridge following human tooth extraction. A total of 28 patients were divided into two groups: The experimental and control groups (n=14 each). Following tooth extraction, the experimental group was implanted with PRF membrane, whereas the control group was not. The gingival healing effect was assessed at 7 days, 1 and 3 months later. Cone-beam computed tomography was performed immediately and at 3 months following tooth extraction. The changes in alveolar ridge height, width, and bone mineral density were compared between the two groups. The alveolar bone was removed using the ring drill during the implant surgery at 3 months following tooth extraction. Histomorphometric evaluation was performed to compare new bone formation between groups. The patients in the experimental group reportedly felt better compared with the patients in the control group. The healing of gingival tissue was better in the experimental group than in the control group. A significantly greater novel bone area was observed in the PRF group compared with the control group (P<0.01). However, no statistically significant differences were observed in the mean value of buccal alveolar ridge height, lingual/palatal alveolar ridge height and alveolar ridge width between the two groups. These results suggested that PRF was advantageous in human alveolar ridge preservation with ease of use and simple handling. Histological analysis of novel bone formation confirmed that PRF increased the quality of the novel bone and enhanced the rate of bone formation, despite the effect of PRF was not significant to reduce alveolar bone resorption in the extraction socket alone.
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Affiliation(s)
- Yingdi Zhang
- Department of Stomatology, East Hospital Affiliated to Tongji University, Shanghai 200120, P.R. China
| | - Zheng Ruan
- Department of Stomatology, East Hospital Affiliated to Tongji University, Shanghai 200120, P.R. China
| | - Minhua Shen
- Department of Stomatology, East Hospital Affiliated to Tongji University, Shanghai 200120, P.R. China
| | - Luanjun Tan
- Department of Stomatology, East Hospital Affiliated to Tongji University, Shanghai 200120, P.R. China
| | - Weiqin Huang
- Department of Stomatology, East Hospital Affiliated to Tongji University, Shanghai 200120, P.R. China
| | - Lei Wang
- Department of Stomatology, East Hospital Affiliated to Tongji University, Shanghai 200120, P.R. China
| | - Yuanliang Huang
- Department of Stomatology, East Hospital Affiliated to Tongji University, Shanghai 200120, P.R. China
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Cai Y, Tan X, Zhao L, Zhang R, Zhu T, Du Y, Wang X. Synthesis of a Novel bFGF/nHAP/COL Bone Tissue Engineering Scaffold for Mandibular Defect Regeneration in a Rabbit Model. J HARD TISSUE BIOL 2018. [DOI: 10.2485/jhtb.27.85] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Yue Cai
- Department of Oral and Maxillofacial Surgery, School of Stomatology, China Medical University, Liaoning Institute of Dental Research
| | - Xuexin Tan
- Department of Oral and Maxillofacial Surgery, School of Stomatology, China Medical University, Liaoning Institute of Dental Research
| | - Li Zhao
- The affiliated Zhongshan Hospital Dalian University
| | - Ran Zhang
- Department of Oral and Maxillofacial Surgery, School of Stomatology, China Medical University, Liaoning Institute of Dental Research
| | - Tong Zhu
- Department of Oral and Maxillofacial Surgery, School of Stomatology, China Medical University, Liaoning Institute of Dental Research
| | - Yang Du
- Department of Oral Medicine, School of Stomatology, Jinzhou Medical University
| | - Xukai Wang
- Department of Oral and Maxillofacial Surgery, School of Stomatology, China Medical University, Liaoning Institute of Dental Research
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24
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Effect of Serial Use of Bone Morphogenetic Protein 2 and Fibroblast Growth Factor 2 on Periodontal Tissue Regeneration. IMPLANT DENT 2017; 26:664-673. [DOI: 10.1097/id.0000000000000624] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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25
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Luo G, Huang Y, Gu F. rhBMP2-loaded calcium phosphate cements combined with allogenic bone marrow mesenchymal stem cells for bone formation. Biomed Pharmacother 2017; 92:536-543. [DOI: 10.1016/j.biopha.2017.05.083] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2017] [Revised: 05/15/2017] [Accepted: 05/17/2017] [Indexed: 12/16/2022] Open
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26
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Basic Fibroblast Growth Factor-Anchored Multilayered Mesenchymal Cell Sheets Accelerate Periosteal Bone Formation. BIOMED RESEARCH INTERNATIONAL 2017; 2017:4371460. [PMID: 28761877 PMCID: PMC5518495 DOI: 10.1155/2017/4371460] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/16/2017] [Revised: 04/18/2017] [Accepted: 06/06/2017] [Indexed: 01/09/2023]
Abstract
Cell-based regenerative therapy has the potential to repair bone injuries or large defects that are recalcitrant to conventional treatment methods, including drugs and surgery. Here, we developed a multilayered cell-based bone formation system using cells coated with fibronectin-gelatin (FN-G) nanofilms. The multilayered mesenchymal cells (MLMCs) were formed after two days of culture and were shown to express higher levels of BMP-2 and VEGF compared to monolayer cultures of MCs. The MLMCs were used as a graft material in combination with a fusion protein consisting of basic fibroblast growth factor (bFGF), polycystic kidney disease (PKD) domain, and the collagen-binding domain (CBD) of Clostridium histolyticum collagenase. In femur sites grafted with the MLMCs, significantly higher levels of callus volume and bone mineral content were observed compared to the sham controls. The callus volume and bone mineral content were further increased in femur sites grafted with bFGF-PKD-CBD/MLMCs. Taken together, these results suggest that bFGF-PKD-CBD/MLMCs, which can be simply and rapidly generated in vitro, have the potential to promote bone repair when grafted into large defect sites.
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Choi M, Choi D, Han U, Hong J. Inkjet-based multilayered growth factor-releasing nanofilms for enhancing proliferation of mesenchymal stem cells in vitro. J IND ENG CHEM 2017. [DOI: 10.1016/j.jiec.2017.02.014] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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28
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Diao S, Lin X, Wang L, Dong R, Du J, Yang D, Fan Z. Analysis of gene expression profiles between apical papilla tissues, stem cells from apical papilla and cell sheet to identify the key modulators in MSCs niche. Cell Prolif 2017; 50. [PMID: 28145066 DOI: 10.1111/cpr.12337] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2016] [Accepted: 01/04/2017] [Indexed: 12/11/2022] Open
Abstract
OBJECTIVES The microenvironmental niche plays the key role for maintaining the cell functions. The stem cells from apical papilla (SCAPs) are important for tooth development and regeneration. However, there is limited knowledge about the key factors in niche for maintaining the function of SCAPs. In this study, we analyse the gene expression profiles between apical papilla tissues, SCAPs and SCAPs cell sheet to identify the key genes in SCAPs niche. MATERIALS AND METHODS Microarray assays and bioinformatic analysis were performed to screen the differential genes between apical papilla tissues and SCAPs, and SCAPs and SCAPs cell sheet. Recombinant human BMP6 protein was used in SCAPs. Then CCK-8 assay, CFSE assay, alkaline phosphatase activity, alizarin red staining, quantitative calcium analysis and real-time reverse transcriptase-polymerase chain reaction were performed to investigate the cell proliferation and differentiation potentials of SCAPs. RESULTS Microarray analysis found that 846 genes were up-regulated and 1203 genes were down-regulated in SCAPs compared with apical papilla tissues. While 240 genes were up-regulated and 50 genes were down-regulated in SCAPs compared to in SCAPs cell sheet. Moreover, only 31 gene expressions in apical papilla tissues were recovered in cell sheet compared with SCAPs. Bioinformatic analysis identified that TGF-β, WNT and MAPK signalling pathways may play an important role in SCAPs niche. Based on the analysis, we identified one key growth factor in niche, BMP6, which could enhance the cell proliferation, the osteo/dentinogenic, neurogenic and angiogenic differentiation potentials of SCAPs. CONCLUSIONS Our results provided insight into the mechanisms of the microenvironmental niche which regulate the function of SCAPs, and identified the key candidate genes in niche to promote mesenchymal stem cells-mediated dental tissue regeneration.
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Affiliation(s)
- Shu Diao
- Laboratory of Molecular Signaling and Stem Cells Therapy, Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, Capital Medical University School of Stomatology, Beijing, China.,Department of Pediatric dentistry, Capital Medical University School of Stomatology, Beijing, China
| | - Xiao Lin
- Laboratory of Molecular Signaling and Stem Cells Therapy, Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, Capital Medical University School of Stomatology, Beijing, China.,Department of Implant Dentistry, Capital Medical University School of Stomatology, Beijing, China
| | - Liping Wang
- Laboratory of Molecular Signaling and Stem Cells Therapy, Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, Capital Medical University School of Stomatology, Beijing, China
| | - Rui Dong
- Laboratory of Molecular Signaling and Stem Cells Therapy, Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, Capital Medical University School of Stomatology, Beijing, China
| | - Juan Du
- Laboratory of Molecular Signaling and Stem Cells Therapy, Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, Capital Medical University School of Stomatology, Beijing, China.,Molecular Laboratory for Gene Therapy and Tooth Regeneration, Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, Capital Medical University School of Stomatology, Beijing, China
| | - Dongmei Yang
- Laboratory of Molecular Signaling and Stem Cells Therapy, Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, Capital Medical University School of Stomatology, Beijing, China.,Department of Pediatric dentistry, Capital Medical University School of Stomatology, Beijing, China
| | - Zhipeng Fan
- Laboratory of Molecular Signaling and Stem Cells Therapy, Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, Capital Medical University School of Stomatology, Beijing, China
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Acellular dermal matrix loading with bFGF achieves similar acceleration of bone regeneration to BMP-2 via differential effects on recruitment, proliferation and sustained osteodifferentiation of mesenchymal stem cells. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 70:62-70. [DOI: 10.1016/j.msec.2016.08.049] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/22/2016] [Revised: 08/02/2016] [Accepted: 08/20/2016] [Indexed: 11/19/2022]
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30
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Saito E, Saito A, Kato H, Shibukawa Y, Inoue S, Yuge F, Nakajima T, Takahashi T, Kawanami M. A Novel Regenerative Technique Combining Bone Morphogenetic Protein-2 With Fibroblast Growth Factor-2 for Circumferential Defects in Dog Incisors. J Periodontol 2016; 87:1067-74. [PMID: 27240475 DOI: 10.1902/jop.2016.150746] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
BACKGROUND Periodontal regeneration of incisors is necessary for esthetic recovery. A novel regenerative method combining bone morphogenetic protein (BMP)-2 and fibroblast growth factor (FGF)-2 was developed. The purpose of this study is to evaluate periodontal healing, including root coverage, in circumferential defects of incisors. METHODS Fifty incisors in five beagles were used. After circumferential defects were surgically created, each group, consisting of ten recipient sites, received: 1) a double layer with FGF-2 (2 μg)/collagen as inner layer and BMP-2 (4 μg)/collagen as outer layer (FB-DL group); 2) collagen impregnated with both FGF-2 (2 μg) and BMP-2 (4 μg) (FB-M group); 3) BMP-2 (4 μg)/collagen (B group); 4) FGF-2 (4 μg)/collagen (F group); or 5) collagen (C group). Dogs were sacrificed 8 weeks post-surgery, and healing was evaluated histologically. RESULTS The three groups treated with BMP-2 showed enhanced new bone formation compared with control and F groups (P < 0.05). Furthermore, connective tissue attachment with cementum regeneration in the FB-DL group was significantly greater than in FB-M and B groups (P <0.05). Ankylosis in the FB-DL group was significantly less than in FB-M and B groups (P <0.05). Gingival recession was inhibited significantly better in FB-DL and FB-M groups compared with control and B groups. CONCLUSION These data support development of a double-layer method combining BMP-2 and FGF-2 as a therapeutic approach to periodontal regeneration at incisors with horizontal circumferential defects.
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Affiliation(s)
- Emiko Saito
- Department of Periodontology and Endodontology, Hokkaido University Graduate School of Dental Medicine, Sapporo, Japan
| | - Akira Saito
- Department of Crown and Bridge Prosthodontics, Hokkaido University Graduate School of Dental Medicine
| | | | | | - Satoshi Inoue
- Division of Clinical Education, Hokkaido University Graduate School of Dental Medicine
| | - Fumihiko Yuge
- Department of Crown and Bridge Prosthodontics, Hokkaido University Graduate School of Dental Medicine
| | - Toshinori Nakajima
- Department of Crown and Bridge Prosthodontics, Hokkaido University Graduate School of Dental Medicine
| | - Tomomi Takahashi
- Support Section for Education and Research, Hokkaido University Graduate School of Dental Medicine
| | - Masamitsu Kawanami
- Department of Periodontology and Endodontology, Hokkaido University Graduate School of Dental Medicine, Sapporo, Japan
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31
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Özdal-Kurt F, Tuğlu I, Vatansever HS, Tong S, Şen BH, Deliloğlu-Gürhan SI. The effect of different implant biomaterials on the behavior of canine bone marrow stromal cells during their differentiation into osteoblasts. Biotech Histochem 2016; 91:412-22. [DOI: 10.1080/10520295.2016.1183819] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
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32
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Rasi Ghaemi S, Delalat B, Cetó X, Harding FJ, Tuke J, Voelcker NH. Synergistic influence of collagen I and BMP 2 drives osteogenic differentiation of mesenchymal stem cells: A cell microarray analysis. Acta Biomater 2016. [PMID: 26196081 DOI: 10.1016/j.actbio.2015.07.027] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Cell microarrays are a novel platform for the high throughput discovery of new biomaterials. By re-creating a multitude of cell microenvironments on a single slide, this approach can identify the optimal surface composition to drive a desired cell response. To systematically study the effects of molecular microenvironments on stem cell fate, we designed a cell microarray based on parallel exposure of mesenchymal stem cells (MSCs) to surface-immobilised collagen I (Coll I) and bone morphogenetic protein 2 (BMP 2). This was achieved by means of a reactive coating on a slide surface, enabling the covalent anchoring of Coll I and BMP 2 as microscale spots printed by a robotic contact printer. The surface between the printed protein spots was passivated using poly (ethylene glycol) bisamine 10,000Da (A-PEG). MSCs were then captured and cultured on array spots composed of binary mixtures of Coll I and BMP 2, followed by automated image acquisition and quantitative, multi-parameter analysis of cellular responses. Surface compositions that gave the highest osteogenic differentiation were determined using Runx2 expression and calcium deposition. Quantitative single cell analysis revealed subtle concentration-dependent effects of surface-immobilised proteins on the extent of osteogenic differentiation obscured using conventional analysis. In particular, the synergistic interaction of Coll I and BMP 2 in supporting osteogenic differentiation was confirmed. Our studies demonstrate the value of cell microarray platforms to decipher the combinatorial interactions at play in stem cell niche microenvironments.
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Meng Y, Li X, Li Z, Liu C, Zhao J, Wang J, Liu Y, Yuan X, Cui Z, Yang X. Surface Functionalization of Titanium Alloy with miR-29b Nanocapsules To Enhance Bone Regeneration. ACS APPLIED MATERIALS & INTERFACES 2016; 8:5783-5793. [PMID: 26887789 DOI: 10.1021/acsami.5b10650] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Titanium and its alloys have been widely used over the past 3 decades as implants for healing bone defects. Nevertheless, the bioinert property of titanium alloy limits its clinical application and surface modification method is frequently performed to improve the biological and chemical properties. Recently, the delivery of microRNA with osteogenesis capability has been recognized as a promising tool to enhance bone regeneration of implants. Here, we developed a biodegradable coating to modify the titanium surface in order to enhance osteogenic bioactivity. The previous developed nanocapsules were used as the building blocks, and then a bioactive titanium coating was designed to entrap the miR-29b nanocapsules. This coating was not only favorable for cell adhesion and growth but also provided sufficient microRNA transfection efficacy and osteoinductive potential, resulting in a significant enhancement of bone regeneration on the surface of bioinert titanium alloy.
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Affiliation(s)
- Yubin Meng
- Tianjin Key Laboratory of Composite and Functional Materials, School of Materials Science & Engineering, Tianjin University , Tianjin 300072, China
| | - Xue Li
- Department of Clinical Microbiology, School of Laboratory Medicine, Tianjin Medical University , Tianjin 300203, China
| | - Zhaoyang Li
- Tianjin Key Laboratory of Composite and Functional Materials, School of Materials Science & Engineering, Tianjin University , Tianjin 300072, China
| | - Chaoyong Liu
- Tianjin Key Laboratory of Composite and Functional Materials, School of Materials Science & Engineering, Tianjin University , Tianjin 300072, China
| | - Jin Zhao
- Tianjin Key Laboratory of Composite and Functional Materials, School of Materials Science & Engineering, Tianjin University , Tianjin 300072, China
| | - Jianwei Wang
- Tianjin Key Laboratory of Composite and Functional Materials, School of Materials Science & Engineering, Tianjin University , Tianjin 300072, China
| | - Yunde Liu
- Department of Clinical Microbiology, School of Laboratory Medicine, Tianjin Medical University , Tianjin 300203, China
| | - Xubo Yuan
- Tianjin Key Laboratory of Composite and Functional Materials, School of Materials Science & Engineering, Tianjin University , Tianjin 300072, China
| | - Zhenduo Cui
- Tianjin Key Laboratory of Composite and Functional Materials, School of Materials Science & Engineering, Tianjin University , Tianjin 300072, China
| | - Xianjin Yang
- Tianjin Key Laboratory of Composite and Functional Materials, School of Materials Science & Engineering, Tianjin University , Tianjin 300072, China
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Salim S, Ariani MD. In vitro and in vivo evaluation of carbonate apatite-collagen scaffolds with some cytokines for bone tissue engineering. J Indian Prosthodont Soc 2016; 15:349-55. [PMID: 26929539 PMCID: PMC4762346 DOI: 10.4103/0972-4052.171821] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
Background: Collagen is regarded as one of the most useful biomaterials. We tried to combine collagen and carbonate apatite (CA) with some cytokines in order to enhance bone formation ability. In this study, we found that CA-collagen sponge (CA-CS) was a possible candidate of newly graft material for bone formation. Materials and Methods: CA-CS was fabricated by the following procedure. One wt% of pig hide collagen solution (Nippon Meat Packers. Inc., Tokyo, Japan) was neutralized with 0.1 N NaOH, and then mixed immediately 243 mg apatite powder with 0.06 M carbonate contents. After centrifugation at 1500 rpm for 10 min, excess water was removed, and the mixture was packed into Teflon molds (5.0 mm × 2.0 mm). Each 10 µg of basic fibroblast growth factor (bFGF) and recombinant human bone morphogenetic protein-2 (rh-BMP2) were involved in these sponges. Then these scaffolds frozen at −80°C for 2 h and dried in a freeze dry machine for 24 h. CA-CS without cytokines were also prepared as a control. Mouse osteoblast-like cell (MC3T3-E1) proliferations in these scaffolds were investigated by 3-day in vitro cell culture using MTT assay examination. Ten New Zealand rabbits (weight: 3–3.5 kg) were used in this in vivo study. After 3 weeks of placement, the scaffolds, rabbits were sacrificed, and bone formation in the sockets was evaluated histologically and histomorphometrically. Results and Conclusion: By histological observation and measurement of bone area ratio, CA-CS with cytokines showed higher bone formation ability (bFGF/CA-CS: 50.7 ± 7.3%, rh-BMP2/CA-CS: 54.2 ± 5.0%) than other groups. From the limited results of this study, it is suggested that CA collagen scaffolds with some cytokines may become an attractive scaffold for bone regeneration.
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Affiliation(s)
- Sherman Salim
- Department of Prosthodontics, Faculty of Dentistry, Airlangga University, Surabaya, Indonesia
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35
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Chen T, Gomez AW, Zuo Y, Li X, Zhang Z, Li Y, Hu J, Li J. Osteogenic potential and synergistic effects of growth factors delivered from a bionic composite system. J Biomed Mater Res A 2015; 104:659-668. [PMID: 26514654 DOI: 10.1002/jbm.a.35605] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2015] [Revised: 10/15/2015] [Accepted: 10/28/2015] [Indexed: 01/18/2023]
Affiliation(s)
- Tao Chen
- State Key Laboratory of Oral Diseases and Department of Oral and Maxillofacial Surgery, West China College of Stomatology; Sichuan University; Chengdu 610041 China
| | - Alan W. Gomez
- Department of Surgery, Division of Plastic and Reconstructive Surgery; Stanford School of Medicine, Stanford University; Stanford California 94305
| | - Yi Zuo
- Research Center for Nano-Biomaterials, Analytical and Testing Center, Sichuan University; Chengdu 610064 China
| | - Xiang Li
- State Key Laboratory of Oral Diseases and Department of Oral and Maxillofacial Surgery, West China College of Stomatology; Sichuan University; Chengdu 610041 China
| | - Zhen Zhang
- State Key Laboratory of Oral Diseases and Department of Oral and Maxillofacial Surgery, West China College of Stomatology; Sichuan University; Chengdu 610041 China
| | - Yubao Li
- Research Center for Nano-Biomaterials, Analytical and Testing Center, Sichuan University; Chengdu 610064 China
| | - Jing Hu
- State Key Laboratory of Oral Diseases and Department of Oral and Maxillofacial Surgery, West China College of Stomatology; Sichuan University; Chengdu 610041 China
| | - Jihua Li
- State Key Laboratory of Oral Diseases and Department of Oral and Maxillofacial Surgery, West China College of Stomatology; Sichuan University; Chengdu 610041 China
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Wang JJ, Liu YL, Sun YC, Ge W, Wang YY, Dyce PW, Hou R, Shen W. Basic Fibroblast Growth Factor Stimulates the Proliferation of Bone Marrow Mesenchymal Stem Cells in Giant Panda (Ailuropoda melanoleuca). PLoS One 2015; 10:e0137712. [PMID: 26375397 PMCID: PMC4574107 DOI: 10.1371/journal.pone.0137712] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2015] [Accepted: 08/20/2015] [Indexed: 01/01/2023] Open
Abstract
It has been widely known that the giant panda (Ailuropoda melanoleuca) is one of the most endangered species in the world. An optimized platform for maintaining the proliferation of giant panda mesenchymal stem cells (MSCs) is very necessary for current giant panda protection strategies. Basic fibroblast growth factor (bFGF), a member of the FGF family, is widely considered as a growth factor and differentiation inducer within the stem cell research field. However, the role of bFGF on promoting the proliferation of MSCs derived from giant panda bone marrow (BM) has not been reported. In this study, we aimed to investigate the role of bFGF on the proliferation of BM-MSCs derived from giant panda. MSCs were cultured for cell proliferation analysis at 24, 48 and 72 hrs following the addition of bFGF. With increasing concentrations of bFGF, cell numbers gradually increased. This was further demonstrated by performing 3-(4,5-dimethyl-2-thiazolyl)-2,5-diphenyl-2-H-tetrazolium bromide (MTT) cell proliferation assay, 5-Bromo-2-deoxyUridine (BrdU) labeling and cell cycle testing. Furthermore, the percentage of MSCs that were OCT4 positive increased slightly following treatment with 5 ng/ml bFGF. Moreover, we demonstrated that the extracellular signal-regulated kinase (ERK) signaling pathway may play an important role in the proliferation of panda MSCs stimulated by bFGF. In conclusion, this study suggests that giant panda BM-MSCs have a high proliferative capacity with the addition of 5 ng/ml bFGF in vitro.
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Affiliation(s)
- Jun-Jie Wang
- Institute of Reproductive Sciences, Qingdao Agricultural University, Qingdao, Shandong, 266109, China; Key Laboratory of Animal Reproduction and Germplasm Enhancement in Universities of Shandong, College of Animal Science and Technology, Qingdao Agricultural University, Qingdao, Shandong, 266109, China
| | - Yu-Liang Liu
- Chengdu Research Base of Giant Panda Breeding, Chengdu, Sichuan, 610081, China
| | - Yuan-Chao Sun
- Institute of Reproductive Sciences, Qingdao Agricultural University, Qingdao, Shandong, 266109, China; Key Laboratory of Animal Reproduction and Germplasm Enhancement in Universities of Shandong, College of Animal Science and Technology, Qingdao Agricultural University, Qingdao, Shandong, 266109, China
| | - Wei Ge
- Institute of Reproductive Sciences, Qingdao Agricultural University, Qingdao, Shandong, 266109, China; Key Laboratory of Animal Reproduction and Germplasm Enhancement in Universities of Shandong, College of Animal Science and Technology, Qingdao Agricultural University, Qingdao, Shandong, 266109, China
| | - Yong-Yong Wang
- Institute of Reproductive Sciences, Qingdao Agricultural University, Qingdao, Shandong, 266109, China; College of Life Sciences, Qingdao Agricultural University, Qingdao, Shandong, 266109, China
| | - Paul W Dyce
- Department of Animal Sciences, Auburn University, Auburn, Alabama, 36849, United States of America
| | - Rong Hou
- Chengdu Research Base of Giant Panda Breeding, Chengdu, Sichuan, 610081, China
| | - Wei Shen
- Institute of Reproductive Sciences, Qingdao Agricultural University, Qingdao, Shandong, 266109, China; Key Laboratory of Animal Reproduction and Germplasm Enhancement in Universities of Shandong, College of Animal Science and Technology, Qingdao Agricultural University, Qingdao, Shandong, 266109, China
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Manzano-Moreno FJ, Medina-Huertas R, Ramos-Torrecillas J, García-Martínez O, Ruiz C. The effect of low-level diode laser therapy on early differentiation of osteoblast via BMP-2/TGF-β1 and its receptors. J Craniomaxillofac Surg 2015; 43:1926-32. [PMID: 26447026 DOI: 10.1016/j.jcms.2015.08.026] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2015] [Revised: 07/17/2015] [Accepted: 08/26/2015] [Indexed: 10/23/2022] Open
Abstract
OBJECTIVES The objective of this study was to determine the effect of LLDL therapy on the gene expression of osteoblast markers of growth and differentiation. MATERIALS AND METHODS The MG-63 cell line was exposed to diode laser (ezLase) of 940 nm at 1-1.5 W and 3-4 J, and gene expressions (Runx-2, alkaline phosphatase [ALP], type I collagen [Col-I], osterix [OSX], osteocalcin [OSC], osteoprotegerin [OPG], bone morphogenetic protein [BMP]-2 and -7, transforming growth factor-β1 [TGF-β1], and TGF-β receptors [TGF-β R1, TGF-β R2; TGF-β R3]) were evaluated by quantitative RT-PCR. RESULTS LLDL treatment stimulated the expression of osteoblast differentiation markers ALP, Col-I, Runx-2, and OSX in relation to the doses applied (P < 0.05), but no changes were detected in OSC, OPG, or BMP-7 at any study dose. This effect may be mediated by TGF-β1 and BMP-2, given that the treatment increased their expression and that of TGF-β receptors R1, R2, and R3 (P < 0.001). CONCLUSION These results suggest that the biostimulatory effect of laser therapy on osteoblasts may be attributable to the release of autocrine factors in response to the irradiation. A clinical trial is warranted to test its therapeutic usefulness in bone tissue regeneration and to define a treatment protocol.
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Affiliation(s)
- Francisco J Manzano-Moreno
- Department of Stomatology (Head: Prof. Pilar Aranda-Ramirez), School of Dentistry, University of Granada, Spain; Biomedical Group (BIO277), Department of Nursing (Head: Prof. Pilar Aranda-Ramirez), Faculty of Health Sciences, University of Granada, Spain; Instituto Investigación Biosanitaria, ibs.Granada (Head: Prof. Nicolas Olea-Serrano), Spain
| | - Rosa Medina-Huertas
- Biomedical Group (BIO277), Department of Nursing (Head: Prof. Pilar Aranda-Ramirez), Faculty of Health Sciences, University of Granada, Spain
| | - Javier Ramos-Torrecillas
- Biomedical Group (BIO277), Department of Nursing (Head: Prof. Pilar Aranda-Ramirez), Faculty of Health Sciences, University of Granada, Spain; Instituto Investigación Biosanitaria, ibs.Granada (Head: Prof. Nicolas Olea-Serrano), Spain
| | - Olga García-Martínez
- Biomedical Group (BIO277), Department of Nursing (Head: Prof. Pilar Aranda-Ramirez), Faculty of Health Sciences, University of Granada, Spain; Instituto Investigación Biosanitaria, ibs.Granada (Head: Prof. Nicolas Olea-Serrano), Spain
| | - Concepción Ruiz
- Biomedical Group (BIO277), Department of Nursing (Head: Prof. Pilar Aranda-Ramirez), Faculty of Health Sciences, University of Granada, Spain; Instituto Investigación Biosanitaria, ibs.Granada (Head: Prof. Nicolas Olea-Serrano), Spain; Institute of Neuroscience (Head: Prof. Pilar Aranda-Ramirez), Parque Tecnológico Ciencias de la Salud, Armilla (Granada), University of Granada, Spain.
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Herberg S, Aguilar-Perez A, Howie RN, Kondrikova G, Periyasamy-Thandavan S, Elsalanty ME, Shi X, Hill WD, Cray JJ. Mesenchymal stem cell expression of SDF-1β synergizes with BMP-2 to augment cell-mediated healing of critical-sized mouse calvarial defects. J Tissue Eng Regen Med 2015; 11:1806-1819. [PMID: 26227988 DOI: 10.1002/term.2078] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2014] [Revised: 04/28/2015] [Accepted: 06/16/2015] [Indexed: 01/07/2023]
Abstract
Bone has the potential for spontaneous healing. This process, however, often fails in patients with comorbidities. Tissue engineering combining functional cells, biomaterials and osteoinductive cues may provide alternative treatment strategies. We have recently demonstrated that stromal cell-derived factor-1β (SDF-1β) works in concert with bone morphogenetic protein-2 (BMP-2) to potentiate osteogenic differentiation of bone marrow-derived mesenchymal stem/stromal cells (BMSCs). Here, we test the hypothesis that SDF-1β overexpressed in Tet-Off-SDF-1β BMSCs, delivered on acellular dermal matrix (ADM), synergistically augments BMP-2-induced healing of critical-sized mouse calvarial defects. BMSC therapies alone showed limited bone healing, which was increased with co-delivery of BMP-2. This was further enhanced in Tet-Off-SDF-1β BMSCs + BMP-2. Only limited BMSC retention on ADM constructs was observed after 4 weeks in vivo, which was increased with BMP-2 co-delivery. In vitro cell proliferation studies showed that supplementing BMP-2 to Tet-Off BMSCs significantly increased the cell number during the first 24 h. Consequently, the increased cell numbers decreased the detectable BMP-2 levels in the medium, but increased cell-associated BMP-2. The data suggest that SDF-1β provides synergistic effects supporting BMP-2-induced, BMSC-mediated bone formation and appears suitable for optimization of bone augmentation in combination therapy protocols. Copyright © 2015 John Wiley & Sons, Ltd.
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Affiliation(s)
- Samuel Herberg
- Department of Biomedical Engineering, Case Western Reserve University, Cleveland, OH, USA
| | - Alexandra Aguilar-Perez
- Department of Cellular Biology and Anatomy, Georgia Regents University, Augusta, GA, USA.,Department of Cellular and Molecular Biology, Universidad Central del Caribe, Bayamón, Puerto Rico, USA
| | - R Nicole Howie
- Department of Cellular Biology and Anatomy, Georgia Regents University, Augusta, GA, USA.,Department of Oral Biology, Georgia Regents University, Augusta, GA, USA
| | - Galina Kondrikova
- Department of Cellular Biology and Anatomy, Georgia Regents University, Augusta, GA, USA
| | | | - Mohammed E Elsalanty
- Department of Cellular Biology and Anatomy, Georgia Regents University, Augusta, GA, USA.,Department of Oral Biology, Georgia Regents University, Augusta, GA, USA.,Department of Orthopedic Surgery, Georgia Regents University, Augusta, GA, USA.,Institute for Regenerative and Reparative Medicine, Georgia Regents University, Augusta, GA, USA
| | - Xingming Shi
- Department of Orthopedic Surgery, Georgia Regents University, Augusta, GA, USA.,Department of Neuroscience and Regenerative Medicine, Georgia Regents University, Augusta, GA, USA.,Institute for Regenerative and Reparative Medicine, Georgia Regents University, Augusta, GA, USA
| | - William D Hill
- Department of Cellular Biology and Anatomy, Georgia Regents University, Augusta, GA, USA.,Department of Orthopedic Surgery, Georgia Regents University, Augusta, GA, USA.,Department of Neuroscience and Regenerative Medicine, Georgia Regents University, Augusta, GA, USA.,Institute for Regenerative and Reparative Medicine, Georgia Regents University, Augusta, GA, USA.,Charlie Norwood VA Medical Centre, Augusta, GA, USA
| | - James J Cray
- Department of Oral Health Sciences, Medical University of South Carolina, Charleston, SC, USA
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Xie Q, Wang Z, Huang Y, Bi X, Zhou H, Lin M, Yu Z, Wang Y, Ni N, Sun J, Wu S, You Z, Guo C, Sun H, Wang Y, Gu P, Fan X. Characterization of human ethmoid sinus mucosa derived mesenchymal stem cells (hESMSCs) and the application of hESMSCs cell sheets in bone regeneration. Biomaterials 2015. [PMID: 26196534 DOI: 10.1016/j.biomaterials.2015.07.013] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Mesenchymal stem cells (MSCs) have been extensively applied in the field of tissue regeneration. MSCs derived from various tissues exhibit different characteristics. In this study, a cluster of cells were isolated from human ethmoid sinus mucosa membrane and termed as hESMSCs. hESMSCs was demonstrated to have MSC-specific characteristics of self-renewal and tri-lineage differentiation. In particular, hESMSCs displayed strong osteogenic differentiation potential, and also remarkably promoted the proliferation and osteogenesis of rat bone marrow mesenchymal stem cells (rBMSCs) in vitro. Next, hESMSCs were prepared into a cell sheet and combined with a PSeD scaffold seeded with rBMSCs to repair critical-sized calvarial defects in rats, which showed excellent reparative effects. Additionally, ELISA assays revealed that secreted cytokines, such as BMP-2, BMP-4 and bFGF, were higher in the hESMSCs conditioned medium, and immunohistochemistry validated that hESMSCs cell sheet promoted the expression of BMP signaling downstream genes in newly formed bone. In conclusion, hESMSCs were demonstrated to be a class of mesenchymal stem cells that possessed high self-renewal capacity along with strong osteogenic potential, and the cell sheet of hESMSCs could remarkably promote new bone regeneration, indicating that hESMSCs cell sheet could serve as a novel and promising alternative strategy in the management of bone regeneration.
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Affiliation(s)
- Qing Xie
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, PR China
| | - Zi Wang
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, PR China
| | - Yazhuo Huang
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, PR China
| | - Xiaoping Bi
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, PR China
| | - Huifang Zhou
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, PR China
| | - Ming Lin
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, PR China
| | - Zhang Yu
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, PR China
| | - Yefei Wang
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, PR China
| | - Ni Ni
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, PR China
| | - Jing Sun
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, PR China
| | - Si Wu
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, PR China
| | - Zhengwei You
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, 2999 North Renmin Road, Shanghai, 201620, PR China
| | - Chunyu Guo
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, PR China
| | - Hao Sun
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, PR China
| | - Yadong Wang
- Departments of Bioengineering, Chemical Engineering, Surgery, and the McGowan Institute, University of Pittsburgh, 3700 O'Hara Street, Pittsburgh, PA, 15261, USA
| | - Ping Gu
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, PR China.
| | - Xianqun Fan
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, PR China.
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Bottagisio M, Lovati AB, Lopa S, Moretti M. Osteogenic Differentiation of Human and Ovine Bone Marrow Stromal Cells in response to β-Glycerophosphate and Monosodium Phosphate. Cell Reprogram 2015; 17:235-42. [PMID: 26168053 DOI: 10.1089/cell.2014.0105] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
Bone defects are severe burdens in clinics, and thus cell therapy offers an alternative strategy exploiting the features of bone marrow stromal cells (BMSCs). Sheep are a suitable orthopedic preclinical model for similarities with humans. This study compares the influence of two phosphate sources combined with bone morphogenetic protein-2 (BMP-2) on the osteogenic potential of human and ovine BMSCs. β-Glycerophosphate (β-GlyP) and monosodium phosphate (NaH2PO4) were used as organic and inorganic phosphate sources. Osteogenic differentiation of the BMSCs was assessed by calcified matrix, alkaline phosphatase (ALP) activity, and gene expression analysis. A higher calcified matrix deposition was detected in BMSCs cultured with NaH2PO4. Although no significant differences were detected among media for human BMSCs, β-GlyP with or without BMP-2 determined a positive trend in ALP levels compared to NaH2PO4. In contrast, NaH2PO4 had a positive effect on ALP levels in ovine BMSCs. β-GlyP better supported the expression of COL1A1 in human BMSCs, whereas all media enhanced RUNX2 and SPARC expression. Ovine BMSCs responded poorly to any media for RUNX2, COL1A1, and SPARC expression. NaH2PO4 improved calcified matrix deposition without upregulating the transcriptional expression of osteogenic markers. A further optimization of differentiation protocols needs to be performed to translate the procedures from preclinical to clinical models.
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Affiliation(s)
- Marta Bottagisio
- Cell and Tissue Engineering Laboratory, IRCCS Galeazzi Orthopaedic Institute , 20161 Milan, Italy
| | - Arianna B Lovati
- Cell and Tissue Engineering Laboratory, IRCCS Galeazzi Orthopaedic Institute , 20161 Milan, Italy
| | - Silvia Lopa
- Cell and Tissue Engineering Laboratory, IRCCS Galeazzi Orthopaedic Institute , 20161 Milan, Italy
| | - Matteo Moretti
- Cell and Tissue Engineering Laboratory, IRCCS Galeazzi Orthopaedic Institute , 20161 Milan, Italy
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Saito W, Uchida K, Matsushita O, Inoue G, Sekiguchi H, Aikawa J, Fujimaki H, Takaso M. Acceleration of callus formation during fracture healing using basic fibroblast growth factor-kidney disease domain-collagen-binding domain fusion protein combined with allogenic demineralized bone powder. J Orthop Surg Res 2015; 10:59. [PMID: 25956801 PMCID: PMC4429668 DOI: 10.1186/s13018-015-0201-0] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/19/2015] [Accepted: 03/20/2015] [Indexed: 01/23/2023] Open
Abstract
Background To repair fractures with large bone defects or gaps, demineralized allogenic bone matrix (DBM) is often applied to the fracture site. However, studies have shown that the use of DBM alone has limited efficacy for repairing fractures. In the present study, we developed an allogenic demineralized bone powder (DBP) with basic fibroblast-derived growth factor containing a polycystic kidney disease (PKD) domain and collagen-binding domain (CBD) from Clostridium histolyticum collagenase (ColH) and investigated the stimulatory effects of bFGF-PKD-CBD combined with allogenic DBP on bone growth in a mouse femur fracture model. Methods DBP mixed with either phosphate-buffered saline (PBS) (DBP/PBS), 0.58 nmol basic fibroblast growth factor (bFGF) (0.58 nmol DBP/bFGF), 0.058 nmol bFGF-PKD-CBD (0.058 nmol DBP/bFGF-PKD-CBD), or 0.58 nmol bFGF-PKD-CBD (0.58 nmol DBP/bFGF-PKD-CBD) was grafted into fracture sites. Results bFGF-PKD-CBD/DBP composite accelerates callus formation in a bone fracture model in mice and clearly showed that the composite also increases bone mineral density at fracture sites compared to bFGF/DBP. In addition, bFGF-PKD-CBD/DBP increased callus volume and bone mineral content to similar levels in fractures treated with a tenfold higher amount of bFGF at 4 weeks. Conclusions Our results suggest that bFGF-PKD-CBD/DBP may be useful for promoting fracture healing in the clinical setting.
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Affiliation(s)
- Wataru Saito
- Department of Orthopaedic Surgery, Kitasato University School of Medicine, 1-15-1 Minami-ku Kitasato, Sagamihara, Kanagawa, Japan.
| | - Kentaro Uchida
- Department of Orthopaedic Surgery, Kitasato University School of Medicine, 1-15-1 Minami-ku Kitasato, Sagamihara, Kanagawa, Japan.
| | - Osamu Matsushita
- Department of Bacteriology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Kita-ku Shikata-cho, Okayama, Japan.
| | - Gen Inoue
- Department of Orthopaedic Surgery, Kitasato University School of Medicine, 1-15-1 Minami-ku Kitasato, Sagamihara, Kanagawa, Japan.
| | - Hiroyuki Sekiguchi
- Department of Orthopaedic Surgery, Kitasato University School of Medicine, 1-15-1 Minami-ku Kitasato, Sagamihara, Kanagawa, Japan.
| | - Jun Aikawa
- Department of Orthopaedic Surgery, Kitasato University School of Medicine, 1-15-1 Minami-ku Kitasato, Sagamihara, Kanagawa, Japan.
| | - Hisako Fujimaki
- Department of Orthopaedic Surgery, Kitasato University School of Medicine, 1-15-1 Minami-ku Kitasato, Sagamihara, Kanagawa, Japan.
| | - Masashi Takaso
- Department of Orthopaedic Surgery, Kitasato University School of Medicine, 1-15-1 Minami-ku Kitasato, Sagamihara, Kanagawa, Japan.
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Charles LF, Woodman JL, Ueno D, Gronowicz G, Hurley MM, Kuhn LT. Effects of low dose FGF-2 and BMP-2 on healing of calvarial defects in old mice. Exp Gerontol 2015; 64:62-9. [PMID: 25681640 DOI: 10.1016/j.exger.2015.02.006] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2014] [Revised: 01/30/2015] [Accepted: 02/10/2015] [Indexed: 02/06/2023]
Abstract
There is an age-associated reduction in the bone healing activity of bone morphogenetic protein-2 (BMP-2) that is currently addressed by administering higher doses of BMP-2 in elderly patients. The unwanted medical complications from high dose BMP-2 motivated this investigation to determine whether the addition of a low dose of fibroblast growth factor 2 (FGF-2) could enhance the ability of a lower dose of BMP-2 to heal calvarial bone defects in old mice (18-20 months old). FGF-2 (5 ng) and BMP-2 (2 μg) were administered by a controlled release two-phase biomaterial scaffold placed into the bone defect. FGF-2 released more rapidly and completely in vitro than BMP-2 (40% vs 2%). In vivo, both BMP-2 and FGF-2+BMP-2 groups formed more new bone in calvarial defects than scaffold alone (p < 0.001) or FGF-2 only groups (p < 0.01). The overall total volume of new bone was not statistically increased by the addition of FGF-2 to BMP-2 as measured by microCT, but the pattern of bone deposition was different. In old mice, but not young, there was enhanced bony fill in the central bone defect area when the BMP-2 was supplemented with FGF-2. Histological analysis of the center of the defect revealed an increased bone volume (%BV/TV (p = 0.004)) from the addition of FGF-2. These studies suggest that combining a low dose of FGF-2 with a low dose of BMP-2 has the potential to increase bone healing in old mice relative to BMP-2 alone.
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Affiliation(s)
- Lyndon F Charles
- Department of Reconstructive Sciences, University of Connecticut Health Center, Farmington, CT 06030, USA
| | - Jessica L Woodman
- Department of Reconstructive Sciences, University of Connecticut Health Center, Farmington, CT 06030, USA
| | - Daisuke Ueno
- Unit of Oral and Maxillofacial Implantology, Tsurumi University School of Dental Medicine, Yokohama, Japan
| | - Gloria Gronowicz
- Department of Surgery, University of Connecticut Health Center, Farmington, CT 06030, USA
| | - Marja M Hurley
- Department of Medicine, University of Connecticut Health Center, Farmington, CT 06030, USA
| | - Liisa T Kuhn
- Department of Reconstructive Sciences, University of Connecticut Health Center, Farmington, CT 06030, USA.
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Liang W, Zhuo X, Tang Z, Wei X, Li B. Calcitonin gene-related peptide stimulates proliferation and osteogenic differentiation of osteoporotic rat-derived bone mesenchymal stem cells. Mol Cell Biochem 2015; 402:101-10. [PMID: 25563479 DOI: 10.1007/s11010-014-2318-6] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2014] [Accepted: 12/23/2014] [Indexed: 01/27/2023]
Abstract
Osteoporosis, a systemic bone disorder, is prevalent in postmenopausal woman. Bone mesenchymal stem cells (BMSCs), precursors of osteogenic cells, may contribute to prevention or treatment of bone frustrate in osteoporosis. Recently, two studies suggested a role of calcitonin gene-related peptide (CGRP) in promoting osteogenesis of BMSCs under physiological conditions. However, the role of CGRP on BMSCs, which are derived from osteoporotic tissues, is unclear. Here, we investigated the role of CGRP on BMSCs isolated from female osteoporotic rats. Data showed that CGRP stimulated cell proliferation and inhibited cell apoptosis for short-term culture of BMSCs. Instead, CGRP induced BMSCs differentiation into the osteoblasts and promoted formation of calcified nodules after long-term culture. Moreover, CGRP gradually up-regulated expression levels of osteoporotic differentiation-related genes including alkaline phosphatase, Collagen type I, Bmp2, Osteonectin, and Runx2 during osteogenic differentiation. In conclusion, CGRP promoted proliferation and induced osteogenic differentiation and mineralization during female osteoporotic rat-derived BMSC differentiation. These findings support a potential role of CGRP on the prevention or treatment of osteoporotic fracture.
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Affiliation(s)
- Wei Liang
- The Fourth Affiliated Hospital, Guangxi Medical University, No. 1 Liushi Road, Yufeng, Liuzhou, 545005, Guangxi, China
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Synergistic effect of RhBMP–2 and bFGF on ectopic osteogenesis in mice. ASIAN PAC J TROP MED 2015; 8:53-9. [DOI: 10.1016/s1995-7645(14)60187-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2014] [Revised: 11/10/2014] [Accepted: 12/22/2014] [Indexed: 11/18/2022] Open
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Peng W, Wang L, Deng J, Gong Y, Li S, Hu Y. Application of BCBB/BMP/bFGF Complex in Repairing Femoral Head Necrosis in Rabbit Models. J HARD TISSUE BIOL 2015. [DOI: 10.2485/jhtb.24.85] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Wuxun Peng
- Department of Emergency Surgery, Guiyang Medical College
| | - Lei Wang
- Department of Emergency Surgery, Guiyang Medical College
| | - Jin Deng
- Department of Emergency Surgery, Guiyang Medical College
| | - Yuekun Gong
- The First Affiliated Hospital of Kunming Medical College
| | - Shihe Li
- The First Affiliated Hospital of Kunming Medical College
| | - Yunyu Hu
- Department of Orthopaedics, Xijing Hospital, the Fourth Military Medical University
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Sustained delivery of rhBMP-2 by means of poly(lactic-co-glycolic acid) microspheres: cranial bone regeneration without heterotopic ossification or craniosynostosis. Plast Reconstr Surg 2014; 134:51-59. [PMID: 24622573 DOI: 10.1097/prs.0000000000000287] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
BACKGROUND Commercially available recombinant human bone morphogenetic protein 2 (rhBMP2) has demonstrated efficacy in bone regeneration, but not without significant side effects. The authors used rhBMP2 encapsulated in poly(lactic-co-glycolic acid) (PLGA) microspheres placed in a rabbit cranial defect model to test whether low-dose, sustained delivery can effectively induce bone regeneration. METHODS The rhBMP2 was encapsulated in 15% PLGA using a double-emulsion, solvent extraction/evaporation technique, and its release kinetics and bioactivity were tested. Two critical-size defects (10 mm) were created in the calvaria of New Zealand white rabbits (5 to 7 months of age, male and female) and filled with a collagen scaffold containing either (1) no implant, (2) collagen scaffold only, (3) PLGA-rhBMP2 (0.1 μg per implant), or (4) free rhBMP2 (0.1 μg per implant). After 6 weeks, the rabbits were killed and defects were analyzed by micro-computed tomography, histology, and finite element analysis. RESULTS The rhBMP2 delivered by means of bioactive PLGA microspheres resulted in higher volumes and surface area coverage of new bone than an equal dose of free rhBMP2 by micro-computed tomography (p=0.025 and p=0.025). Finite element analysis indicated that the mechanical competence using the regional elastic modulus did not differ with rhBMP2 exposure (p=0.70). PLGA-rhBMP2 did not demonstrate heterotopic ossification, craniosynostosis, or seroma formation. CONCLUSIONS Sustained delivery by means of PLGA microspheres can significantly reduce the rhBMP2 dose required for de novo bone formation. Optimization of the delivery system may be a key to reducing the risk for recently reported rhBMP2-related adverse effects.
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Lee HJ, Koh WG. Hydrogel micropattern-incorporated fibrous scaffolds capable of sequential growth factor delivery for enhanced osteogenesis of hMSCs. ACS APPLIED MATERIALS & INTERFACES 2014; 6:9338-9348. [PMID: 24915062 DOI: 10.1021/am501714k] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
In this study, we developed multi-functional biomimetic tissue engineered scaffolds that are capable of controlling the spatial locations of stem cells and releasing multiple growth factors with a controlled dose and rate of delivery. This novel scaffold was fabricated by combining electrospinning and photolithography and consisted of polycaprolactone (PCL)/gelatin fibers and poly(ethylene glycol) (PEG) hydrogel micropatterns. The utility of this system was investigated in the context of the osteogenesis of human mesenchymal stem cells (hMSCs). When hMSCs were seeded onto hydrogel-incorporated fibrous scaffolds, they selectively adhered and grew only in the fiber region due to the non-adhesiveness of the PEG hydrogel, enabling spatial positioning of hMSCs on a micrometer scale. For osteogenic differentiation of hMSCs, basic fibroblast growth factor (bFGF) and bone morphogenetic protein-2 (BMP-2) were loaded on the fibers and within the hydrogel matrix, respectively, to enable sequential delivery of low doses of bFGF during the early stages and sustained release of BMP-2 for long periods. According to in vitro studies, hMSCs cultured on the scaffolds capable of sequential delivery of bFGF and BMP-2 showed stronger osteogenic commitment in culture than those on scaffolds without any growth factors or scaffolds with single administration of either bFGF or BMP-2 under the same conditions. The results demonstrate that hydrogel-incorporated fibrous scaffolds can provide not only biomimetic structures with micropatterned nanostructures but also a suitable biochemical environment with controlled release of multiple growth factors, which may eventually facilitate the control of stem cell fates for various regenerative therapies.
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Affiliation(s)
- Hyun Jong Lee
- Department of Chemical and Biomolecular Engineering, Yonsei University 50 Yonsei-ro, Seodaemun-gu, Seoul 120-749, South Korea
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Osteoinductivity of gelatin/β-tricalcium phosphate sponges loaded with different concentrations of mesenchymal stem cells and bone morphogenetic protein-2 in an equine bone defect model. Vet Res Commun 2014; 38:73-80. [DOI: 10.1007/s11259-013-9587-5] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/16/2013] [Indexed: 10/25/2022]
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Rasi Ghaemi S, Harding FJ, Delalat B, Gronthos S, Voelcker NH. Exploring the mesenchymal stem cell niche using high throughput screening. Biomaterials 2013; 34:7601-15. [DOI: 10.1016/j.biomaterials.2013.06.022] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2013] [Accepted: 06/12/2013] [Indexed: 12/13/2022]
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Pappalardo S, Guarnieri R. Efficacy of Platelet-Rich-Plasma (PRP) and Highly Purified Bovine Xenograft (Laddec(®)) Combination in Bone Regeneration after Cyst Enucleation: Radiological and Histological Evaluation. EJOURNAL OF ORAL MAXILLOFACIAL RESEARCH 2013; 4:e3. [PMID: 24422036 PMCID: PMC3887574 DOI: 10.5037/jomr.2012.4303] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/03/2013] [Accepted: 08/26/2013] [Indexed: 12/24/2022]
Abstract
Objectives The
purpose of the present study was to evaluate the efficacy of adding
platelet-rich plasma (PRP) to a new highly purified bovine allograft
(Laddec®) in the bone regeneration of cystic bony defects
augmented following cystectomy. Material and Methods Study
sample included 20 patients undergoing cystectomy in which the bone
defect was filled with PRP and Laddec®. All patients were
examined with periapical radiographs before operation and at follow-up.
After 3 months, at re-entry surgery for implant placement, bone core was
taken for histological and histomorphometric analysis. Results The
postoperative successive radiographs showed a good regeneration of bone
in the height of bony defects with application of PRP to bone graft. By
the first postoperative month, about 48% of the defect was filled, which
gradually increased in each month and showed about 90% of defect-fill by
6 months. Histological and histomorphometric analysis, showed a
significant presence of bone tissue and vessels, with newly formed bone
in contact with anorganic bone particles. The mean volume of vital bone
was 68 ± 1.6% and the mean percentage of vital bone was 48 ± 2.4%. The
mean percentage of inorganic particles in tissues was 20 ± 1.2% of the
total volume. All the samples analyzed did not evidence the presence of
inflammatory cells. Conclusions The
results of this study showed how the use of Laddec® in
association with platelet-rich plasma allows bone regeneration and has a
potential for routine clinical use for regeneration of cystic bony
defects.
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Affiliation(s)
- Sabrina Pappalardo
- Department of Oral and Maxillofacial Surgery, Catania University, Catania Italy
| | - Renzo Guarnieri
- Freelance Researcher, S.C.S., Scientific Consulting Services, Rome Italy
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