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Su H, Fujiwara T, Skalli O, Selders GS, Li T, Mao L, Bumgardner JD. Porous Nano-Fiber Structure of Modified Electrospun Chitosan GBR Membranes Improve Osteoblast Calcium Phosphate Deposition in Osteoblast-Fibroblast Co-Cultures. Mar Drugs 2024; 22:160. [PMID: 38667777 PMCID: PMC11051071 DOI: 10.3390/md22040160] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2024] [Revised: 03/23/2024] [Accepted: 03/27/2024] [Indexed: 04/28/2024] Open
Abstract
Desirable characteristics of electrospun chitosan membranes (ESCM) for guided bone regeneration are their nanofiber structure that mimics the extracellular fiber matrix and porosity for the exchange of signals between bone and soft tissue compartments. However, ESCM are susceptible to swelling and loss of nanofiber and porous structure in physiological environments. A novel post-electrospinning method using di-tert-butyl dicarbonate (tBOC) prevents swelling and loss of nanofibrous structure better than sodium carbonate treatments. This study aimed to evaluate the hypothesis that retention of nanofiber morphology and high porosity of tBOC-modified ESCM (tBOC-ESCM) would support more bone mineralization in osteoblast-fibroblast co-cultures compared to Na2CO3 treated membranes (Na2CO3-ESCM) and solution-cast chitosan solid films (CM-film). The results showed that only the tBOC-ESCM retained the nanofibrous structure and had approximately 14 times more pore volume than Na2CO3-ESCM and thousands of times more pore volume than CM-films, respectively. In co-cultures, the tBOC-ESCM resulted in a significantly greater calcium-phosphate deposition by osteoblasts than either the Na2CO3-ESCM or CM-film (p < 0.05). This work supports the study hypothesis that tBOC-ESCM with nanofiber structure and high porosity promotes the exchange of signals between osteoblasts and fibroblasts, leading to improved mineralization in vitro and thus potentially improved bone healing and regeneration in guided bone regeneration applications.
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Affiliation(s)
- Hengjie Su
- Institute of Biomedical Engineering, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300192, China
- Department of Biomedical Engineering, University of Tennessee Health Science Center-Memphis Joint Graduate Biomedical Engineering Program, The University of Memphis, Memphis, TN 38152, USA
| | - Tomoko Fujiwara
- Department of Chemistry, The University of Memphis, Memphis, TN 38152, USA;
| | - Omar Skalli
- Integrated Microscopy Center, The University of Memphis, Memphis, TN 38152, USA
| | - Gretchen Schreyack Selders
- Department of Biomedical Engineering, University of Tennessee Health Science Center-Memphis Joint Graduate Biomedical Engineering Program, The University of Memphis, Memphis, TN 38152, USA
| | - Ting Li
- Institute of Biomedical Engineering, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300192, China
| | - Linna Mao
- Institute of Biomedical Engineering, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300192, China
| | - Joel D. Bumgardner
- Department of Biomedical Engineering, University of Tennessee Health Science Center-Memphis Joint Graduate Biomedical Engineering Program, The University of Memphis, Memphis, TN 38152, USA
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Epicoco L, Pellegrino R, Madaghiele M, Friuli M, Giannotti L, Di Chiara Stanca B, Palermo A, Siculella L, Savkovic V, Demitri C, Nitti P. Recent Advances in Functionalized Electrospun Membranes for Periodontal Regeneration. Pharmaceutics 2023; 15:2725. [PMID: 38140066 PMCID: PMC10747510 DOI: 10.3390/pharmaceutics15122725] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Revised: 11/26/2023] [Accepted: 12/01/2023] [Indexed: 12/24/2023] Open
Abstract
Periodontitis is a global, multifaceted, chronic inflammatory disease caused by bacterial microorganisms and an exaggerated host immune response that not only leads to the destruction of the periodontal apparatus but may also aggravate or promote the development of other systemic diseases. The periodontium is composed of four different tissues (alveolar bone, cementum, gingiva, and periodontal ligament) and various non-surgical and surgical therapies have been used to restore its normal function. However, due to the etiology of the disease and the heterogeneous nature of the periodontium components, complete regeneration is still a challenge. In this context, guided tissue/bone regeneration strategies in the field of tissue engineering and regenerative medicine have gained more and more interest, having as a goal the complete restoration of the periodontium and its functions. In particular, the use of electrospun nanofibrous scaffolds has emerged as an effective strategy to achieve this goal due to their ability to mimic the extracellular matrix and simultaneously exert antimicrobial, anti-inflammatory and regenerative activities. This review provides an overview of periodontal regeneration using electrospun membranes, highlighting the use of these nanofibrous scaffolds as delivery systems for bioactive molecules and drugs and their functionalization to promote periodontal regeneration.
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Affiliation(s)
- Luana Epicoco
- Department of Engineering for Innovation, University of Salento, 73100 Lecce, Italy; (R.P.); (M.M.); (M.F.); (C.D.)
- Institute of Medical Physics and Biophysics, University of Leipzig, 04103 Leipzig, Germany
| | - Rebecca Pellegrino
- Department of Engineering for Innovation, University of Salento, 73100 Lecce, Italy; (R.P.); (M.M.); (M.F.); (C.D.)
| | - Marta Madaghiele
- Department of Engineering for Innovation, University of Salento, 73100 Lecce, Italy; (R.P.); (M.M.); (M.F.); (C.D.)
| | - Marco Friuli
- Department of Engineering for Innovation, University of Salento, 73100 Lecce, Italy; (R.P.); (M.M.); (M.F.); (C.D.)
| | - Laura Giannotti
- Department of Biological and Environmental Sciences and Technologies, University of Salento, 73100 Lecce, Italy; (L.G.); (B.D.C.S.); (L.S.)
| | - Benedetta Di Chiara Stanca
- Department of Biological and Environmental Sciences and Technologies, University of Salento, 73100 Lecce, Italy; (L.G.); (B.D.C.S.); (L.S.)
| | - Andrea Palermo
- Implant Dentistry College of Medicine and Dentistry, Birmingham B4 6BN, UK;
| | - Luisa Siculella
- Department of Biological and Environmental Sciences and Technologies, University of Salento, 73100 Lecce, Italy; (L.G.); (B.D.C.S.); (L.S.)
| | - Vuk Savkovic
- Clinic and Polyclinic for Oral and Maxillofacial Plastic Surgery, University Hospital Leipzig, 04103 Leipzig, Germany;
| | - Christian Demitri
- Department of Engineering for Innovation, University of Salento, 73100 Lecce, Italy; (R.P.); (M.M.); (M.F.); (C.D.)
| | - Paola Nitti
- Department of Engineering for Innovation, University of Salento, 73100 Lecce, Italy; (R.P.); (M.M.); (M.F.); (C.D.)
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Casillas-Santana MA, Slavin YN, Zhang P, Niño-Martínez N, Bach H, Martínez-Castañón GA. Osteoregeneration of Critical-Size Defects Using Hydroxyapatite-Chitosan and Silver-Chitosan Nanocomposites. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:nano13020321. [PMID: 36678072 PMCID: PMC9861689 DOI: 10.3390/nano13020321] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Revised: 01/08/2023] [Accepted: 01/09/2023] [Indexed: 06/09/2023]
Abstract
Bone is a natural nanocomposite composed of proteins and minerals that can regenerate itself. However, there are conditions in which this process is impaired, such as extensive bone defects and infections of the bone or surrounding tissue. This study evaluates the osteoregenerative capacity of bone grafting materials in animals with induced bone defects. Colloidal chitosan dispersion nanocomposites, nanohydroxyapatite−chitosan (NHAP-Q) and nanosilver−chitosan (AgNP-Q), were synthesized and characterized. Non-critical-size defects in Wistar rats were used to evaluate the material’s biocompatibility, and critical-size defects in the calvarias of guinea pigs were used to evaluate the regenerative capacity of the bones. Moreover, the toxicity of the nanocomposites was evaluated in the heart, liver, spleen, kidneys, and skin. Histological, radiographic, and electron microscopy tests were also performed. The results showed that neither material produced pathological changes. Radiographic examination showed a significant reduction in defects (75.1% for NHAP-Q and 79.3% for AgNP-Q), angiogenesis, and trabecular formation. A toxicological assessment of all the organs did not show changes in the ultrastructure of tissues, and the distribution of silver was different for different organs (spleen > skin > heart > kidney > liver). The results suggest that both materials are highly biocompatible, and AgNP-Q achieved similar bone regeneration to that reported with autologous bone. The main research outcome of the present study was the combination of two types of NPs to enhance antimicrobial and osteoregeneration activities. These colloidal chitosan dispersions show promise as future biomaterials in the medical field for applications in fast-healing fractures, including broken bones in the oral cavity and hip replacement infections.
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Affiliation(s)
- Miguel A. Casillas-Santana
- Laboratorio de Nanobiomateriales, Facultad de Estomatología, Universidad Autónoma de San Luis Potosí, San Luis Potosí 78290, Mexico
| | - Yael N. Slavin
- Division of Infectious Diseases, Faculty of Medicine, University of British Columbia, Vancouver, BC V6G 3Z6, Canada
| | - Peng Zhang
- Division of Infectious Diseases, Faculty of Medicine, University of British Columbia, Vancouver, BC V6G 3Z6, Canada
| | - Nereyda Niño-Martínez
- Facultad de Ciencias, Universidad Autónoma de San Luis Potosi, San Luis Potosí 78295, Mexico
| | - Horacio Bach
- Division of Infectious Diseases, Faculty of Medicine, University of British Columbia, Vancouver, BC V6G 3Z6, Canada
| | - Gabriel A. Martínez-Castañón
- Laboratorio de Nanobiomateriales, Facultad de Estomatología, Universidad Autónoma de San Luis Potosí, San Luis Potosí 78290, Mexico
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Kim SK, Murugan SS, Dalavi PA, Gupta S, Anil S, Seong GH, Venkatesan J. Biomimetic chitosan with biocomposite nanomaterials for bone tissue repair and regeneration. BEILSTEIN JOURNAL OF NANOTECHNOLOGY 2022; 13:1051-1067. [PMID: 36247529 PMCID: PMC9531556 DOI: 10.3762/bjnano.13.92] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/03/2022] [Accepted: 09/08/2022] [Indexed: 06/16/2023]
Abstract
Biomimetic materials for better bone graft substitutes are a thrust area of research among researchers and clinicians. Autografts, allografts, and synthetic grafts are often utilized to repair and regenerate bone defects. Autografts are still considered the gold-standard method/material to treat bone-related issues with satisfactory outcomes. It is important that the material used for bone tissue repair is simultaneously osteoconductive, osteoinductive, and osteogenic. To overcome this problem, researchers have tried several ways to develop different materials using chitosan-based nanocomposites of silver, copper, gold, zinc oxide, titanium oxide, carbon nanotubes, graphene oxide, and biosilica. The combination of materials helps in the expression of ideal bone formation genes of alkaline phosphatase, bone morphogenic protein, runt-related transcription factor-2, bone sialoprotein, and osteocalcin. In vitro and in vivo studies highlight the scientific findings of antibacterial activity, tissue integration, stiffness, mechanical strength, and degradation behaviour of composite materials for tissue engineering applications.
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Affiliation(s)
- Se-Kwon Kim
- Department of Marine Science and Convergence Engineering, College of Science and Technology, Hanyang University, Gyeonggi-do 11558, Korea
| | - Sesha Subramanian Murugan
- Biomaterials Research Laboratory, Yenepoya Research Centre, Yenepoya (Deemed to be University), Deralakatte, Mangalore, Karnataka 575018, India
| | - Pandurang Appana Dalavi
- Biomaterials Research Laboratory, Yenepoya Research Centre, Yenepoya (Deemed to be University), Deralakatte, Mangalore, Karnataka 575018, India
| | - Sebanti Gupta
- Biomaterials Research Laboratory, Yenepoya Research Centre, Yenepoya (Deemed to be University), Deralakatte, Mangalore, Karnataka 575018, India
| | - Sukumaran Anil
- Department of Dentistry, Oral Health Institute, Hamad Medical Corporation, College of Dental Medicine, Qatar University, Doha, Qatar
| | - Gi Hun Seong
- Department of Bionano Engineering, Center for Bionano Intelligence Education and Research, Hanyang University, Ansan 426-791, South Korea
| | - Jayachandran Venkatesan
- Biomaterials Research Laboratory, Yenepoya Research Centre, Yenepoya (Deemed to be University), Deralakatte, Mangalore, Karnataka 575018, India
- Department of Bionano Engineering, Center for Bionano Intelligence Education and Research, Hanyang University, Ansan 426-791, South Korea
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Biomaterials Used for Periodontal Disease Treatment: Focusing on Immunomodulatory Properties. Int J Biomater 2022; 2022:7693793. [PMID: 35528847 PMCID: PMC9072036 DOI: 10.1155/2022/7693793] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Revised: 02/23/2022] [Accepted: 03/05/2022] [Indexed: 12/25/2022] Open
Abstract
The growing use of biomaterials with different therapeutic purposes increases the need for their physiological understanding as well as to seek its integration with the human body. Chronic inflammatory local pathologies, generally associated with infectious or autoimmunity processes, have been a current therapeutic target due to the difficulty in their treatment. The recent development of biomaterials with immunomodulatory capacity would then become one of the possible strategies for their management in local pathologies, by intervening in situ, without generating alterations in the systemic immune response. The treatment of periodontal disease as an inflammatory entity has involved the use of different approaches and biomaterials. There is no conclusive, high evidence about the use of these biomaterials in the regeneration of periodontitis sequelae, so the profession keeps looking for other different strategies. The use of biomaterials with immunomodulatory properties could be one, with a promising future. This review of the literature summarizes the scientific evidence about biomaterials used in the treatment of periodontal disease.
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Materials Properties and Application Strategy for Ligament Tissue Engineering. J Med Biol Eng 2022. [DOI: 10.1007/s40846-022-00706-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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López-Valverde N, López-Valverde A, Cortés MP, Rodríguez C, Macedo De Sousa B, Aragoneses JM. Bone Quantification Around Chitosan-Coated Titanium Dental Implants: A Preliminary Study by Micro-CT Analysis in Jaw of a Canine Model. Front Bioeng Biotechnol 2022; 10:858786. [PMID: 35464727 PMCID: PMC9023049 DOI: 10.3389/fbioe.2022.858786] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Accepted: 03/17/2022] [Indexed: 12/11/2022] Open
Abstract
Surface treatments of Ti in the dental implant industry are performed with the aim of in-creasing its bioactivity and osseointegration capacity. Chitosan (Cht) is a polysaccharide that has been proposed as a promising biomaterial in tissue engineering and bone regeneration, due to its ability to stimulate the recruitment and adhesion of osteogenic progenitor cells. The aim of our preliminary study was to evaluate, by micro-computed tomography (micro-CT), the osseointegration and bone formation around Cht-coated implants and to compare them with conventional surface-etched implants (SLA type). Four im-plants (8.5 mm length × 3.5 mm Ø) per hemiarch, were inserted into the jaws of five dogs, divided into two groups: chitosan-coated implant group (ChtG) and control group (CG). Twelve weeks after surgery, euthanasia was performed, and sectioned bone blocks were obtained and scanned by micro-CT and two bone parameters were measured: bone in contact with the implant surface (BCIS) and peri-implant bone area (PIBA). For BCIS and PIBA statistically significant values were obtained for the ChtG group with respect to CG (p = 0.005; p = 0.014 and p < 0.001 and p = 0.002, respectively). The results, despite the limitations, demonstrated the usefulness of chitosan coatings. However, studies with larger sample sizes and adequate experimental models would be necessary to confirm the results.
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Affiliation(s)
- Nansi López-Valverde
- Department of Medicine and Medical Specialties, Faculty of Health Sciences, Universidad Alcalá de Henares, Alcalá de Henares, Spain
| | - Antonio López-Valverde
- Department of Surgery, University of Salamanca, Instituto de Investigación Biomédica de Sala-manca (IBSAL), Salamanca, Spain
- *Correspondence: Antonio López-Valverde,
| | - Marta Paz Cortés
- Faculty of Dentistry, Universidad Alfonso X El Sabio, Villanueva de la Cañada, Spain
| | - Cinthia Rodríguez
- Department of Dentistry, Universidad Federico Henríquez y Carvajal, Santo Domingo, Dominican Republic
| | - Bruno Macedo De Sousa
- Institute for Occlusion and Orofacial Pain Faculty of Medicine, University of Coimbra, Polo I‐Edifício Central Rua Larga, Coimbra, Portugal
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Jain P, Garg A, Farooq U, Panda AK, Mirza MA, Noureldeen A, Darwish H, Iqbal Z. Preparation and quality by design assisted (Qb-d) optimization of bioceramic loaded microspheres for periodontal delivery of doxycycline hyclate. Saudi J Biol Sci 2021; 28:2677-2685. [PMID: 34025152 PMCID: PMC8117247 DOI: 10.1016/j.sjbs.2021.03.046] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2021] [Revised: 03/14/2021] [Accepted: 03/15/2021] [Indexed: 11/27/2022] Open
Abstract
PLGA (Lactic- co-glycolic acid) coated chitosan microspheres loaded with hydroxyapatite and doxycycline hyclate complex were developed in the present study for periodontal delivery. A modified single emulsion method was adopted for the development of microspheres. Formulation was optimized on the basis of particle size, drug loading and encapsulation efficiency with the central composite design using 23 factorial design. Microspheres were optimized and electron microscopy revealed their spherical shape and porous nature. In-vitro study showed initial burst and then sustained release behavior of the formulation for 14 days. Further, in-vitro antibacterial study performed on E. coli (ATCC-25922) and S. aureus (ATCC-29213) revealed concentration dependent activity. Also, in-vitro cyto-toxicity assessment ensures biocompatibility of the formulation with the fibroblast's cells. Overall, the quality by design assisted PLGA microspheres, demonstrated the desired attributes and were found suitable for periodontal drug delivery.
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Affiliation(s)
- Pooja Jain
- Department of Pharmaceutics, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi, India
| | - Abhinav Garg
- Department of Pharmaceutics, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi, India
| | - Uzma Farooq
- Department of Pharmaceutics, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi, India
| | - Amulya K. Panda
- Product Development Cell, National Institute of Immunology, New Delhi, India
| | - Mohd. Aamir Mirza
- Department of Pharmaceutics, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi, India
| | - Ahmed Noureldeen
- Department of Biology, College of Sciences, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia
| | - Hadeer Darwish
- Department of Biotechnology, College of Sciences, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia
| | - Zeenat Iqbal
- Department of Pharmaceutics, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi, India
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Su H, Fujiwara T, Anderson KM, Karydis A, Ghadri MN, Bumgardner JD. A comparison of two types of electrospun chitosan membranes and a collagen membrane in vivo. Dent Mater 2020; 37:60-70. [PMID: 33208266 DOI: 10.1016/j.dental.2020.10.011] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2020] [Revised: 09/25/2020] [Accepted: 10/06/2020] [Indexed: 02/06/2023]
Abstract
BACKGROUND Electrospun chitosan membranes subjected to post-spinning processes using either triethylamine/tert-butyloxycarbonyl (TEA/tBOC) or butyryl-anhydride (BA) modifications to maintain nanofiber structure have exhibited potential for use in guided bone regeneration applications. The aim of this study was to evaluate ability of the modified membranes to support healing of bone-grafted defects as compared to a commercial collagen membrane. METHOD TEA/tBOC-treated and BA-treated chitosan membranes were characterized for fiber morphology by electron microscopy, residual trifluoroacetic acid by19F NMR and endotoxin level using an endotoxin quantitation kit (ThermoScientific, US). Chitosan membranes were cut into 12 mm diameter disks. An 8 mm calvarial defect was created in each of 48 male rats and then filled with Bio-Oss (Geistlich, US) bone graft. The grafted defects were covered with either (1) TEA/tBOC-treated chitosan membrane (2) BA-treated chitosan membrane or (3) the control BioMend Extend (Zimmer Biomet, US) collagen membrane. After 3 and 8 weeks, the rats were euthanized and calvaria was retrieved for microCT and histological analyses (n = 8/group/time points). RESULTS Both TEA/tBOC-treated and BA-treated membranes were composed of nanofibers in the ∼231 to ∼284 nm range respectively, exhibited no TFA salt residue and low endotoxin levels (≤0.1 ± 0.01 EU/membrane). All membranes supported increased bone growth from 3 weeks to 8 weeks though there was no significant difference among the membrane types. However, TEA/tBOC treated and BA treated chitosan membranes both showed significantly greater bone density (∼6% greater at 3 weeks and ∼8% greater at 8 weeks) as compared to BioMend Extend collagen membrane at both time points (p = 0.0002). CONCLUSIONS Chitosan membranes supported better bone healing based on bone density than the collagen membrane.
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Affiliation(s)
- Hengjie Su
- Biomedical Engineering Department ET330, The University of Memphis, Memphis, TN, 38152 USA.
| | - Tomoko Fujiwara
- Department of Chemistry, The University of Memphis, United States
| | - Kenneth M Anderson
- Dental School, The University of Tennessee Health Science Center, United States
| | - Anastasios Karydis
- Dental School, The University of Tennessee Health Science Center, United States
| | - M Najib Ghadri
- Dental School, The University of Tennessee Health Science Center, United States
| | - Joel D Bumgardner
- Biomedical Engineering Department ET330, The University of Memphis, Memphis, TN, 38152 USA.
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Filippi M, Born G, Chaaban M, Scherberich A. Natural Polymeric Scaffolds in Bone Regeneration. Front Bioeng Biotechnol 2020; 8:474. [PMID: 32509754 PMCID: PMC7253672 DOI: 10.3389/fbioe.2020.00474] [Citation(s) in RCA: 139] [Impact Index Per Article: 34.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2020] [Accepted: 04/23/2020] [Indexed: 12/13/2022] Open
Abstract
Despite considerable advances in microsurgical techniques over the past decades, bone tissue remains a challenging arena to obtain a satisfying functional and structural restoration after damage. Through the production of substituting materials mimicking the physical and biological properties of the healthy tissue, tissue engineering strategies address an urgent clinical need for therapeutic alternatives to bone autografts. By virtue of their structural versatility, polymers have a predominant role in generating the biodegradable matrices that hold the cells in situ to sustain the growth of new tissue until integration into the transplantation area (i.e., scaffolds). As compared to synthetic ones, polymers of natural origin generally present superior biocompatibility and bioactivity. Their assembly and further engineering give rise to a wide plethora of advanced supporting materials, accounting for systems based on hydrogels or scaffolds with either fibrous or porous architecture. The present review offers an overview of the various types of natural polymers currently adopted in bone tissue engineering, describing their manufacturing techniques and procedures of functionalization with active biomolecules, and listing the advantages and disadvantages in their respective use in order to critically compare their actual applicability potential. Their combination to other classes of materials (such as micro and nanomaterials) and other innovative strategies to reproduce physiological bone microenvironments in a more faithful way are also illustrated. The regeneration outcomes achieved in vitro and in vivo when the scaffolds are enriched with different cell types, as well as the preliminary clinical applications are presented, before the prospects in this research field are finally discussed. The collection of studies herein considered confirms that advances in natural polymer research will be determinant in designing translatable materials for efficient tissue regeneration with forthcoming impact expected in the treatment of bone defects.
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Affiliation(s)
- Miriam Filippi
- Department of Biomedical Engineering, University of Basel, Basel, Switzerland.,Department of Biomedicine, University Hospital Basel, University of Basel, Basel, Switzerland
| | - Gordian Born
- Department of Biomedical Engineering, University of Basel, Basel, Switzerland
| | - Mansoor Chaaban
- Department of Biomedicine, University Hospital Basel, University of Basel, Basel, Switzerland
| | - Arnaud Scherberich
- Department of Biomedical Engineering, University of Basel, Basel, Switzerland.,Department of Biomedicine, University Hospital Basel, University of Basel, Basel, Switzerland
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Sukpaita T, Chirachanchai S, Suwattanachai P, Everts V, Pimkhaokham A, Ampornaramveth RS. In Vivo Bone Regeneration Induced by a Scaffold of Chitosan/Dicarboxylic Acid Seeded with Human Periodontal Ligament Cells. Int J Mol Sci 2019; 20:ijms20194883. [PMID: 31581495 PMCID: PMC6801435 DOI: 10.3390/ijms20194883] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2019] [Revised: 09/25/2019] [Accepted: 09/29/2019] [Indexed: 12/16/2022] Open
Abstract
Chitosan/dicarboxylic acid (CS/DA) scaffold has been developed as a bone tissue engineering material. This study evaluated a CS/DA scaffold with and without seeded primary human periodontal ligament cells (hPDLCs) in its capacity to regenerate bone in calvarial defects of mice. The osteogenic differentiation of hPDLCs was analyzed by bone nodule formation and gene expression. In vivo bone regeneration was analyzed in mice calvarial defects. Eighteen mice were divided into 3 groups: one group with empty defects, one group with defects with CS/DA scaffold, and a group with defects with CS/DA scaffold and with hPDLCs. After 6 and 12 weeks, new bone formation was assessed using microcomputed tomography (Micro-CT) and histology. CS/DA scaffold significantly promoted in vitro osteoblast-related gene expression (RUNX2, OSX, COL1, ALP, and OPN) by hPDLCs. Micro-CT revealed that CS/DA scaffolds significantly promoted in vivo bone regeneration both after 6 and 12 weeks (p < 0.05). Histological examination confirmed these findings. New bone formation was observed in defects with CS/DA scaffold; being similar with and without hPDLCs. CS/DA scaffolds can be used as a bone regenerative material with good osteoinductive/osteoconductive properties.
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Affiliation(s)
- Teerawat Sukpaita
- Research Unit on Oral Microbiology and Immunology, Department of Microbiology, Faculty of Dentistry, Chulalongkorn University, Bangkok 10330, Thailand.
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Chulalongkorn University, Bangkok 10330, Thailand.
| | - Suwabun Chirachanchai
- Center of Excellence on Petrochemical and Materials Technology, Chulalongkorn University, Bangkok 10330, Thailand.
- Bioresources Advanced Materials (B2A), The Petroleum and Petrochemical College, Chulalongkorn University, Bangkok 10330, Thailand.
| | - Pornchanok Suwattanachai
- Bioresources Advanced Materials (B2A), The Petroleum and Petrochemical College, Chulalongkorn University, Bangkok 10330, Thailand.
| | - Vincent Everts
- Department of Oral Cell Biology, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and VU University Amsterdam, Gustav Mahlerlaan 3004, 1081 LA Amsterdam, The Netherlands.
| | - Atiphan Pimkhaokham
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Chulalongkorn University, Bangkok 10330, Thailand.
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Shah AT, Zahid S, Ikram F, Maqbool M, Chaudhry AA, Rahim MI, Schmidt F, Goerke O, Khan AS, Rehman IU. Tri-layered functionally graded membrane for potential application in periodontal regeneration. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 103:109812. [DOI: 10.1016/j.msec.2019.109812] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/16/2019] [Revised: 05/27/2019] [Accepted: 05/27/2019] [Indexed: 12/24/2022]
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14
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Zang S, Zhu L, Luo K, Mu R, Chen F, Wei X, Yan X, Han B, Shi X, Wang Q, Jin L. Chitosan composite scaffold combined with bone marrow-derived mesenchymal stem cells for bone regeneration: in vitro and in vivo evaluation. Oncotarget 2017; 8:110890-110903. [PMID: 29340024 PMCID: PMC5762292 DOI: 10.18632/oncotarget.22917] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2017] [Accepted: 10/30/2017] [Indexed: 01/12/2023] Open
Abstract
The study aimed to develop a chitosan (CS)-based scaffold for repairing calvarial bone defects. We fabricated composite scaffolds made of CS and bovine-derived xenograft (BDX), characterized their physicochemical properties including pore size and porosity, absorption, degradation, and compressive strength, compared their efficacy to support in vitro proliferation and differentiation of human jaw bone marrow-derived mesenchymal stem cells (hJBMMSCs), and evaluated their bone regeneration capacity in critical-size rat calvarial defects. The CS/BDX (mass ratio of 40:60) composite scaffold with porosity of 46.23% and pore size of 98.23 μm exhibited significantly enhanced compressive strength than the CS scaffold (59.33 ± 4.29 vs. 18.82 ± 2.49 Kpa). The CS/BDX (40:60) scaffold induced better cell attachment and promoted more osteogenic differentiation of hJBMMSCs than the CS scaffold. The CS/BDX (40:60) scaffold seeded with hJBMMSCs was the most effective in supporting new bone formation, as evidenced by better histomorphometry results, larger new bone area, and more obvious mature lamellar bone formation compared to other groups in rat calvarial defects 8 weeks after implantation. These results suggest that CS/BDX composite scaffold combining with hJBMMSCs has the potential for bone defect regeneration.
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Affiliation(s)
- Shengqi Zang
- Department of Stomatology, Jinling Hospital, Medical School of Nanjing University, Nanjing, Jiangsu 210002, P.R. China
| | - Lei Zhu
- Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University, Xi'an, Shaanxi 710023, P.R. China
| | - Kefu Luo
- Department of Stomatology, Urumqi General Hospital of PLA, Urumqi 830000, P.R. China
| | - Rui Mu
- Department of Stomatology, Jinling Hospital, Medical School of Nanjing University, Nanjing, Jiangsu 210002, P.R. China.,Medical School of Southern Medical University, Guangzhou, Guangdong 510515, P.R. China
| | - Feng Chen
- Department of Stomatology, Jinling Hospital, Medical School of Nanjing University, Nanjing, Jiangsu 210002, P.R. China
| | - Xiaocui Wei
- Department of Stomatology, Jinling Hospital, Medical School of Nanjing University, Nanjing, Jiangsu 210002, P.R. China.,Medical School of Southern Medical University, Guangzhou, Guangdong 510515, P.R. China
| | - Xiaodong Yan
- Department of Stomatology, Jinling Hospital, Medical School of Nanjing University, Nanjing, Jiangsu 210002, P.R. China
| | - Biyao Han
- Medical School of Southern Medical University, Guangzhou, Guangdong 510515, P.R. China
| | - Xiaolei Shi
- Department of Stomatology, Jinling Hospital, Medical School of Nanjing University, Nanjing, Jiangsu 210002, P.R. China
| | - Qintao Wang
- Department of Periodontics, School of Stomatology, The Fourth Military Medical University, Xi'an, Shaanxi 710023, P.R. China
| | - Lei Jin
- Department of Stomatology, Jinling Hospital, Medical School of Nanjing University, Nanjing, Jiangsu 210002, P.R. China.,Medical School of Southern Medical University, Guangzhou, Guangdong 510515, P.R. China
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Jayash SN, Hashim NM, Misran M, Baharuddin NA. Local application of osteoprotegerin-chitosan gel in critical-sized defects in a rabbit model. PeerJ 2017; 5:e3513. [PMID: 28674665 PMCID: PMC5494162 DOI: 10.7717/peerj.3513] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2017] [Accepted: 06/07/2017] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND Osteoprotegerin (OPG) is used for the systemic treatment of bone diseases, although it has many side effects. The aim of this study was to investigate a newly formulated OPG-chitosan gel for local application to repair bone defects. Recent studies have reported that immunodetection of osteopontin (OPN) and osteocalcin (OC) can be used to characterise osteogenesis and new bone formation. METHODS The osteogenic potential of the OPG-chitosan gel was evaluated in rabbits. Critical-sized defects were created in the calvarial bone, which were either left unfilled (control; group I), or filled with chitosan gel (group II) or OPG-chitosan gel (group III), with rabbits sacrificed at 6 and 12 weeks. Bone samples from the surgical area were decalcified and treated with routine histological and immunohistochemical protocols using OC, OPN, and cathepsin K (osteoclast marker) antibodies. The toxicity of the OPG-chitosan gel was evaluated by biochemical assays (liver and kidney function tests). RESULTS The mean bone growth in defects filled with the OPG-chitosan gel was significantly higher than those filled with the chitosan gel or the unfilled group (p < 0.05). At 6 and 12 weeks, the highest levels of OC and OPN markers were found in the OPG-chitosan gel group, followed by the chitosan gel group. The number of osteoclasts in the OPG-chitosan gel group was lower than the other groups. The results of the liver and kidney functional tests indicated no signs of harmful systemic effects of treatment. In conclusion, the OPG-chitosan gel has many characteristics that make it suitable for bone repair and regeneration, highlighting its potential benefits for tissue engineering applications.
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Affiliation(s)
- Soher N Jayash
- Department of Restorative Dentistry/Faculty of Dentistry, University of Malaya, Kuala Lumpur, Malaysia
| | - Najihah M Hashim
- Department of Pharmacy/Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia.,Centre For Natural Products And Drug Discovery (CENAR), Department of Chemistry, Faculty of Science, University of Malaya, Kuala Lumpur, Malaysia
| | - Misni Misran
- Department of Chemistry/Faculty of Science, University of Malaya, Kuala Lumpur, Malaysia
| | - N A Baharuddin
- Department of Restorative Dentistry/Faculty of Dentistry, University of Malaya, Kuala Lumpur, Malaysia
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Effect of Resorbable Collagen Plug on Bone Regeneration in Rat Critical-Size Defect Model. IMPLANT DENT 2017; 25:163-70. [PMID: 26901636 DOI: 10.1097/id.0000000000000396] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
OBJECTIVE The purpose of this investigation was to examine the effect of resorbable collagen plug (RCP) on bone regeneration in rat calvarial critical-size defects. METHODS About 5-mm-diameter calvarial defects were created in forty 12-week-old male Sprague-Dawley rats and implanted with or without RCP. Animals were killed at 1, 2, 4, and 8 weeks postoperatively. After being killed, specimens were collected and subjected to micro-computed tomography (μCT) and histological analysis. RESULTS The μCT showed a significant increase of newly formed bone volume/tissue volume in RCP-implanted defect compared with controls at all designated time points. After 8 weeks, the defects implanted with RCP displayed almost complete closure. Hematoxylin and eosin staining of the decalcified sections confirmed these observations and evidenced active bone regeneration in the RCP group. In addition, Masson's trichrome staining demonstrated that RCP implantation accelerated the process of collagen maturation. CONCLUSIONS The RCP enhances bone regeneration in rat critical-size cranial defects, which suggest it might be a desired material for bone defect repair.
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Qasim SB, Najeeb S, Delaine-Smith RM, Rawlinson A, Ur Rehman I. Potential of electrospun chitosan fibers as a surface layer in functionally graded GTR membrane for periodontal regeneration. Dent Mater 2016; 33:71-83. [PMID: 27842886 DOI: 10.1016/j.dental.2016.10.003] [Citation(s) in RCA: 88] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2016] [Revised: 10/02/2016] [Accepted: 10/24/2016] [Indexed: 12/21/2022]
Abstract
OBJECTIVE The regeneration of periodontal tissues lost as a consequence of destructive periodontal disease remains a challenge for clinicians. Guided tissue regeneration (GTR) has emerged as the most widely practiced regenerative procedure. Aim of this study was to electrospin chitosan (CH) membranes with a low or high degree of fiber orientation and examines their suitability for use as a surface layer in GTR membranes, which can ease integration with the periodontal tissue by controlling the direction of cell growth. METHODS A solution of CH-doped with polyethylene oxide (PEO) (ratio 95:5) was prepared for electrospinning. Characterization was performed for biophysiochemical and mechanical properties by means of scanning electron microscopy (SEM), Fourier Transform Infrared (FTIR) spectroscopy, swelling ratio, tensile testing and monitoring degradation using pH analysis, weight profile, ultraviolet-visible (UV-vis) spectroscopy and FTIR analysis. Obtained fibers were also assessed for viability and matrix deposition using human osteosarcoma (MG63) and human embryonic stem cell-derived mesenchymal progenitor (hES-MP) cells. RESULTS Random and aligned CH fibers were obtained. FTIR analysis showed neat CH spectral profile before and after electrospinning. Electropsun mats were conducive to cellular attachment and viability increased with time. The fibers supported matrix deposition by hES-MPs. Histological sections showed cellular infiltration as well. SIGNIFICANCE The surface layer would act as seal to prevent junctional epithelium from falling into the defect site and hence maintain space for bone regeneration.
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Affiliation(s)
- Saad B Qasim
- Materials Science and Engineering Department, Kroto Research Institute, University of Sheffield, Sheffield S3 7HQ, United Kingdom
| | - Shariq Najeeb
- School of Clinical Dentistry, University of Sheffield, University of Sheffield, Sheffield S10 2SZ, United Kingdom
| | - Robin M Delaine-Smith
- Institute of Bioengineering, School of Engineering and Materials Science, Queen Mary University of London, Mile End Road E1 4NS, London, United Kingdom
| | - Andrew Rawlinson
- Academic Unit of Restorative Dentistry, School of Clinical Dentistry, University of Sheffield, Sheffield S10 2SZ, United Kingdom
| | - Ihtesham Ur Rehman
- Materials Science and Engineering Department, Kroto Research Institute, University of Sheffield, Sheffield S3 7HQ, United Kingdom.
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Bizenjima T, Takeuchi T, Seshima F, Saito A. Effect of poly (lactide-co-glycolide) (PLGA)-coated beta-tricalcium phosphate on the healing of rat calvarial bone defects: a comparative study with pure-phase beta-tricalcium phosphate. Clin Oral Implants Res 2016; 27:1360-1367. [PMID: 26748831 DOI: 10.1111/clr.12744] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/07/2015] [Indexed: 01/22/2023]
Abstract
OBJECTIVES To investigate the effect of poly (lactide-co-glycolide) (PLGA)-coated β-tricalcium phosphate (TCP) as a scaffold on bone regeneration in rat calvaria. MATERIAL AND METHODS Bilateral critical-sized defects were created in the calvaria of 20 Sprague Dawley rats. Defects of each rat were filled with pure-phase β-TCP or PLGA/β-TCP, or left as unfilled control. The healing was evaluated by micro-computed tomography, histological, and immunohistochemical analyses. Tartrate-resistant acid phosphatase (TRAP) staining was also performed to assess the resorption activity. RESULTS At 4 weeks, ingrowth of cells from the surrounding tissue into the β-TCP and PLGA/β-TCP biomaterials were observed in the defect area, and new bone formation had started. At 6 weeks, the value for defect closure in the β-TCP group was significantly greater than that in the unfilled control (P < 0.01). A significantly greater level of new bone formation was found in the β-TCP group (P < 0.01) and PLGA/β-TCP group (P < 0.05) than that in the control group, while no significant difference was found between the β-TCP and PLGA/β-TCP groups. At both time points, the height of new tissue/biomaterial in the central third of the defect was significantly increased when the β-TCP or PLGA/β-TCP was used. Proliferating cell nuclear antigen -positive cells were observed around and inside the β-TCP or PLGA/β-TCP, and TRAP-positive cells were found at the surface of the biomaterials, suggesting that remodeling was occurring. CONCLUSION The application of PLGA-coated β-TCP could promote bone regeneration to similar extent as the β-TCP biomaterial in this in vivo model.
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Affiliation(s)
| | | | - Fumi Seshima
- Department of Periodontology, Tokyo Dental College, Tokyo, Japan
| | - Atsushi Saito
- Department of Periodontology, Tokyo Dental College, Tokyo, Japan. .,Oral Health Science Center, Tokyo Dental College, Tokyo, Japan.
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Chen X, Wu G, Feng Z, Dong Y, Zhou W, Li B, Bai S, Zhao Y. Advanced biomaterials and their potential applications in the treatment of periodontal disease. Crit Rev Biotechnol 2015; 36:760-75. [PMID: 26004052 DOI: 10.3109/07388551.2015.1035693] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Periodontal disease is considered as a widespread infectious disease and the most common cause of tooth loss in adults. Attempts for developing periodontal disease treatment strategies, including drug delivery and regeneration approaches, provide a useful experimental model for the evaluation of future periodontal therapies. Recently, emerging advanced biomaterials including hydrogels, films, micro/nanofibers and particles, hold great potential to be utilized as cell/drug carriers for local drug delivery and biomimetic scaffolds for future regeneration therapies. In this review, first, we describe the pathogenesis of periodontal disease, including plaque formation, immune response and inflammatory reactions caused by bacteria. Second, periodontal therapy and an overview of current biomaterials in periodontal regenerative medicine have been discussed. Third, the roles of state-of-the-art biomaterials, including hydrogels, films, micro/nanofibers and micro/nanoparticles, developed for periodontal disease treatment and periodontal tissue regeneration, and their fabrication methods, have been presented. Finally, biological properties, including biocompatibility, biodegradability and immunogenicity of the biomaterials, together with their current applications strategies are given. Conclusive remarks and future perspectives for such advanced biomaterials are discussed.
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Affiliation(s)
- Xi Chen
- a State Key Laboratory of Military Stomatology, Department of Prosthetics , School of Stomatology, The Fourth Military Medical University , Xi'an , Shaanxi , P.R. China .,b Shaanxi Key Laboratory of Stomatology , Xi'an , Shaanxi , P.R. China , and
| | - Guofeng Wu
- a State Key Laboratory of Military Stomatology, Department of Prosthetics , School of Stomatology, The Fourth Military Medical University , Xi'an , Shaanxi , P.R. China .,b Shaanxi Key Laboratory of Stomatology , Xi'an , Shaanxi , P.R. China , and
| | - Zhihong Feng
- a State Key Laboratory of Military Stomatology, Department of Prosthetics , School of Stomatology, The Fourth Military Medical University , Xi'an , Shaanxi , P.R. China .,b Shaanxi Key Laboratory of Stomatology , Xi'an , Shaanxi , P.R. China , and
| | - Yan Dong
- a State Key Laboratory of Military Stomatology, Department of Prosthetics , School of Stomatology, The Fourth Military Medical University , Xi'an , Shaanxi , P.R. China .,b Shaanxi Key Laboratory of Stomatology , Xi'an , Shaanxi , P.R. China , and
| | - Wei Zhou
- a State Key Laboratory of Military Stomatology, Department of Prosthetics , School of Stomatology, The Fourth Military Medical University , Xi'an , Shaanxi , P.R. China .,b Shaanxi Key Laboratory of Stomatology , Xi'an , Shaanxi , P.R. China , and
| | - Bei Li
- b Shaanxi Key Laboratory of Stomatology , Xi'an , Shaanxi , P.R. China , and.,c State Key Laboratory of Military Stomatology, Center for Tissue Engineering , School of Stomatology, The Fourth Military Medical University , Xi'an , Shaanxi , P.R. China
| | - Shizhu Bai
- a State Key Laboratory of Military Stomatology, Department of Prosthetics , School of Stomatology, The Fourth Military Medical University , Xi'an , Shaanxi , P.R. China .,b Shaanxi Key Laboratory of Stomatology , Xi'an , Shaanxi , P.R. China , and
| | - Yimin Zhao
- a State Key Laboratory of Military Stomatology, Department of Prosthetics , School of Stomatology, The Fourth Military Medical University , Xi'an , Shaanxi , P.R. China .,b Shaanxi Key Laboratory of Stomatology , Xi'an , Shaanxi , P.R. China , and
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Yan XZ, van den Beucken JJJP, Cai X, Yu N, Jansen JA, Yang F. Periodontal tissue regeneration using enzymatically solidified chitosan hydrogels with or without cell loading. Tissue Eng Part A 2014; 21:1066-76. [PMID: 25345525 DOI: 10.1089/ten.tea.2014.0319] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
This study is aimed to evaluate the in vivo biocompatibility and periodontal regenerative potential of enzymatically solidified chitosan hydrogels with or without incorporated periodontal ligament cells (PDLCs). To this end, chitosan hydrogels, with (n=8; CHIT+CELL) or without (n=8; CHIT) fluorescently labeled PDLCs, were prepared and transplanted into rat intrabony periodontal defects; untreated defects were used as empty controls (n=8; EMPTY). After 4 weeks, maxillae were harvested, decalcified, and used for histological, histomorphometrical, and immunohistochemical assessments. The results showed that PDLCs remained viable upon encapsulation within chitosan hydrogels before transplantation. Histological analysis demonstrated that the chitosan hydrogels were largely degraded after 4 weeks of implantation, without any adverse reaction in the surrounding tissue. In terms of periodontal regeneration, alveolar bone height, alveolar bone area, and epithelial downgrowth were comparable for CHIT, CHIT+CELL, as well as EMPTY groups. In contrast, both CHIT and CHIT+CELL showed a significant increase in functional ligament length compared with EMPTY. From a cellular perspective, the contribution of chitosan hydrogel-incorporated cells to the periodontal regeneration could not be ascertained, as no signal from transplanted PDLCs could be detected at 4 weeks posttransplantation. The results demonstrated that enzymatically solidified chitosan hydrogels are highly biocompatible and biodegradable. Moreover, chitosan hydrogels without cell loading can improve periodontal regeneration in terms of functional ligament length, indicating the great potential of this hydrogel in clinical applications. Further work on the use of chitosan hydrogels as cell carriers is required.
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Affiliation(s)
- Xiang-Zhen Yan
- Department of Biomaterials, Radboud UMC , Nijmegen, The Netherlands
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22
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A comparison of physicochemical properties of sterilized chitosan hydrogel and its applicability in a canine model of periodontal regeneration. Carbohydr Polym 2014; 113:240-8. [DOI: 10.1016/j.carbpol.2014.07.018] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2014] [Revised: 06/23/2014] [Accepted: 07/02/2014] [Indexed: 11/30/2022]
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Amir LR, Suniarti DF, Utami S, Abbas B. Chitosan as a potential osteogenic factor compared with dexamethasone in cultured macaque dental pulp stromal cells. Cell Tissue Res 2014; 358:407-15. [PMID: 24992928 DOI: 10.1007/s00441-014-1938-1] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2013] [Accepted: 06/03/2014] [Indexed: 12/13/2022]
Abstract
Chitosan, a natural biopolymer derived from chitin, is considered a promising scaffold material for bone tissue engineering. The ability of chitosan to promote the osteogenic differentiation of dental pulp stromal/stem cells (DPSCs) is unknown. We have evaluated the potential of chitosan to induce the osteogenic differentiation of macaque DPSCs in comparison with that of dexamethasone. DPSCs were cultured in mineralizing medium supplemented with 5 or 10 μg/ml chitosan or with 1 or 10 nM dexamethasone. The metabolic activity of DPSCs was measured by MTT assay. Their osteogenic differentiation was determined by the number of transcripts of RUNX2, alkaline phosphatase (ALP), and COL1A1 by using real-time polymerase chain reaction, by alizarin red staining for mineral deposition, and by the ALP activity released into the medium for their ability to support biomineralizaton. Addition of chitosan to the mineralizing medium significantly increased DPSCs metabolism after 7 and 14 days of culture (P ≤ 0.0001). Chitosan at 5 μg/ml also significantly enhanced RUNX2 and ALP mRNA but not COL1A1 mRNA; chitosan tended to increase the release of ALP hydrolytic enzyme activity into the medium during the first week. Dexamethasone upregulated the osteogenic markers tested. Mineral deposition was similar in the chitosan and dexamethasone groups and was not statistically different from that of the mineralizing control group. Thus, the potential of chitosan to stimulate DPSCs proliferation and early osteogenic differentiation is comparable with that of dexamethasone, but mineralization remains unaffected by chitosan treatment. In addition to its role as a three-dimensional scaffold for osteogenic cells in vivo, chitosan might also stimulate DPSCs proliferation and early osteogenic differentiation in vitro.
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Affiliation(s)
- Lisa R Amir
- Department of Oral Biology, Faculty of Dentistry, Universitas Indonesia, Salemba Raya No.4, Jakarta Pusat, 10430, Indonesia,
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Pelaez M, Susin C, Lee J, Fiorini T, Bisch FC, Dixon DR, McPherson JC, Buxton AN, Wikesjö UM. Effect of rhBMP-2 dose on bone formation/maturation in a rat critical-size calvarial defect model. J Clin Periodontol 2014; 41:827-36. [DOI: 10.1111/jcpe.12270] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/30/2014] [Indexed: 01/25/2023]
Affiliation(s)
- Manuel Pelaez
- Laboratory for Applied Periodontal & Craniofacial Regeneration (LAPCR); Georgia Regents University College of Dental Medicine; Augusta GA USA
- US Army Dental Activity; Fort Bragg NC USA
| | - Cristiano Susin
- Laboratory for Applied Periodontal & Craniofacial Regeneration (LAPCR); Georgia Regents University College of Dental Medicine; Augusta GA USA
| | - Jaebum Lee
- Laboratory for Applied Periodontal & Craniofacial Regeneration (LAPCR); Georgia Regents University College of Dental Medicine; Augusta GA USA
| | - Tiago Fiorini
- Laboratory for Applied Periodontal & Craniofacial Regeneration (LAPCR); Georgia Regents University College of Dental Medicine; Augusta GA USA
- Section of Periodontology; School of Dentistry; Federal University; Porto Alegre Rio Grande do Sul Brazil
| | | | | | | | | | - Ulf M.E. Wikesjö
- Laboratory for Applied Periodontal & Craniofacial Regeneration (LAPCR); Georgia Regents University College of Dental Medicine; Augusta GA USA
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Li X, Wang X, Zhao T, Gao B, Miao Y, Zhang D, Dong Y. Guided bone regeneration using chitosan-collagen membranes in dog dehiscence-type defect model. J Oral Maxillofac Surg 2013; 72:304.e1-14. [PMID: 24438600 DOI: 10.1016/j.joms.2013.09.042] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2013] [Revised: 09/05/2013] [Accepted: 09/30/2013] [Indexed: 01/14/2023]
Abstract
PURPOSE The purpose of the present study was to compare a newly developed chitosan-collagen membrane (CCM) with a standard collagen membrane (SCM) regarding their effects on guided bone regeneration. MATERIALS AND METHODS The right mandibular premolars and first molar were extracted from 12 beagle dogs. Four months later, acute buccal dehiscence-type defects (4 × 3 mm in height and width) were surgically created after implant site preparation. The defects were randomly assigned to 4 different groups: CCM-1 (weight ratio of chitosan to collagen of 40:1), CCM-2 (weight ratio of chitosan to collagen of 20:1), SCM, and vehicle control. The dogs were sacrificed after 4, 8, and 12 weeks of healing for radiographic examination, histologic observation, and histometric analysis. RESULTS The membrane-treated sites showed more bone formation than the control sites, although no statistically significant differences were found between the membrane-treated sites and the control sites for new bone-to-implant contact and new bone-filled area at any point. At 8 weeks, the new bone height for the membrane-treated sites was significantly greater statistically than that of the untreated group (P < .05). At 12 weeks, the CCM-1 group showed significantly greater new bone height (1.91 ± 0.25 mm) than the untreated group (1.20 ± 0.34 mm; P < .05). However, the CCMs did not show any statistically significant differences compared with the SCMs for any assessed parameter. CONCLUSIONS The results of the present study have shown that the developed CCMs can enhance bone regeneration and could be a candidate for use in guided bone regeneration.
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Affiliation(s)
- Xiaojing Li
- MD Student, Department of Prosthetic Dentistry, Second Affiliated Hospital, Zhejiang University College of Medicine, Hangzhou, China
| | - Xinmu Wang
- Associate Professor, Department of Oral Surgery, First People's Hospital of Hangzhou, Hangzhou, China
| | - Tengfei Zhao
- Resident, Department of Orthopedic Surgery, Second Affiliated Hospital (Binjiang Branch), Hangzhou Binjiang Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Bo Gao
- MD Student, Department of Prosthetic Dentistry, Second Affiliated Hospital, Zhejiang University College of Medicine, Hangzhou, China
| | - Yuwen Miao
- MD Student, Department of Prosthetic Dentistry, Second Affiliated Hospital, Zhejiang University College of Medicine, Hangzhou, China
| | - Dandan Zhang
- MD Student, Department of Prosthetic Dentistry, Second Affiliated Hospital, Zhejiang University College of Medicine, Hangzhou, China
| | - Yan Dong
- Associate Professor, Department of Prosthetic Dentistry, Second Affiliated Hospital, Zhejiang University College of Medicine, Hangzhou, China.
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Lee SK, Chung JH, Choi SC, Auh QS, Lee YM, Lee SI, Kim EC. Sodium hydrogen sulfide inhibits nicotine and lipopolysaccharide-induced osteoclastic differentiation and reversed osteoblastic differentiation in human periodontal ligament cells. J Cell Biochem 2013. [PMID: 23192567 DOI: 10.1002/jcb.24461] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Although previous studies have demonstrated that hydrogen sulfide (H(2)S) stimulated or inhibited osteoclastic differentiation, little is known about the effects of H(2)S on the differentiation of osteoblasts and osteoclasts. To determine the possible bioactivities of H(2)S on bone metabolism, we investigated the in vitro effects of H(2)S on cytotoxicity, osteoblastic, and osteoclastic differentiation as well as the underlying mechanism in lipopolysaccharide (LPS) and nicotine-stimulated human periodontal ligament cells (hPDLCs). The H(2)S donor, NaHS, protected hPDLCs from nicotine and LPS-induced cytotoxicity and recovered nicotine- and LPS-downregulated osteoblastic differentiation, such as alkaline phosphatase (ALP) activity, mRNA expression of osteoblasts, including ALP, osteopontin (OPN), and osteocalcin (OCN), and mineralized nodule formation. Concomitantly, NaHS inhibited the differentiation of tartrate-resistant acid phosphatase (TRAP)-positive osteoclasts in mouse bone marrow cells and blocked nicotine- and LPS-induced osteoclastogenesis regulatory molecules, such as RANKL, OPG, M-CSF, MMP-9, TRAP, and cathepsin K mRNA. NaHS blocked nicotine and LPS-induced activation of p38, ERK, MKP-1, PI3K, PKC, and PKC isoenzymes, and NF-κB. The effects of H(2)S on nicotine- and LPS-induced osteoblastic and osteoclastic differentiation were remarkably reversed by MKP-1 enzyme inhibitor (vanadate) and expression inhibitor (triptolide). Taken together, we report for the first time that H(2)S inhibited cytotoxicity and osteoclastic differentiation and recovered osteoblastic differentiation in a nicotine- and periodontopathogen-stimulated hPDLCs model, which has potential therapeutic value for treatment of periodontal and inflammatory bone diseases.
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Affiliation(s)
- Sun-Kyung Lee
- Department of Maxillofacial Tissue Regeneration, School of Dentistry and Institute of Oral Biology, Kyung Hee University, Seoul, Republic of Korea
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Cho AR, Kim JH, Lee DE, Lee JS, Jung UW, Bak EJ, Yoo YJ, Chung WG, Choi SH. The effect of orally administered epigallocatechin-3-gallate on ligature-induced periodontitis in rats. J Periodontal Res 2013; 48:781-9. [PMID: 23581513 DOI: 10.1111/jre.12071] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/01/2013] [Indexed: 01/10/2023]
Abstract
BACKGROUND AND OBJECTIVE Epigallocatechin-3-gallate (EGCG) is known for its beneficial properties, including anti-inflammatory and anti-oxidative activities. Recently, reports have suggested that EGCG plays a pivotal role in regulating cytokine expression and osteoclastic activity. In the present study, we investigated whether orally administered EGCG has a therapeutic effect on ligature-induced periodontitis. MATERIALS AND METHODS Forty-eight Sprague-Dawley rats were treated with EGCG or phosphate-buffered saline. Periodontitis was induced by tying a ligature for 7 d. After removing ligation, EGCG (200 mg/kg) or phosphate-buffered saline was administered via oral gavage on a daily basis. Rats were killed after 1, 2 and 4 wk of administration. Histologic and histomorphometric analyses, tartrate resistant acid phosphatase staining and immunohistochemistry were carried out. RESULTS In the control group, bone loss did not recover even after the causative factor of periodontitis was eliminated. On the other hand, distance from cemento-enamel junction to alveolar bone crest, long junctional epithelium and collagen destruction were reduced in the EGCG group. Decreased interleukin (IL)-6 expression was shown from the early stage of EGCG administration, followed by reduced tumor necrosis factor (TNF) expression at week 4 EGCG group. The CT area showed a higher decrease of IL-6 expression between the control and EGCG group than alveolar bone area. Downregulation of TNF and IL-6 expression led to a decrease in osteoclast number and activity, which resulted in reduced bone loss. CONCLUSIONS Systemic administration of EGCG could have a therapeutic effect on damaged periodontal tissue. Inhibited cytokine expression, including TNF and IL-6 is responsible for the reduction in osteoclast formation, osteoclastic activity and collagen destruction.
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Affiliation(s)
- A-R Cho
- Department of Periodontology, Research Institute for Periodontal Regeneration, College of Dentistry, Yonsei University, Seoul, South Korea; Department of Applied Life Science, The Graduate School, Yonsei University, Seoul, South Korea
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Cytotoxicity Testing of Methyl and Ethyl 2-Cyanoacrylate Using Direct Contact Assay on Osteoblast Cell Cultures. J Oral Maxillofac Surg 2013; 71:35-41. [DOI: 10.1016/j.joms.2012.09.002] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2012] [Revised: 07/19/2012] [Accepted: 09/02/2012] [Indexed: 11/30/2022]
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Chen FM, Sun HH, Lu H, Yu Q. Stem cell-delivery therapeutics for periodontal tissue regeneration. Biomaterials 2012; 33:6320-44. [PMID: 22695066 DOI: 10.1016/j.biomaterials.2012.05.048] [Citation(s) in RCA: 211] [Impact Index Per Article: 17.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2012] [Accepted: 05/20/2012] [Indexed: 02/07/2023]
Abstract
Periodontitis, an inflammatory disease, is the most common cause of tooth loss in adults. Attempts to regenerate the complex system of tooth-supporting apparatus (i.e., the periodontal ligament, alveolar bone and root cementum) after loss/damage due to periodontitis have made some progress recently and provide a useful experimental model for the evaluation of future regenerative therapies. Concentrated efforts have now moved from the use of guided tissue/bone regeneration technology, a variety of growth factors and various bone grafts/substitutes toward the design and practice of endogenous regenerative technology by recruitment of host cells (cell homing) or stem cell-based therapeutics by transplantation of outside cells to enhance periodontal tissue regeneration and its biomechanical integration. This shift is driven by the general inability of conventional therapies to deliver satisfactory outcomes, particularly in cases where the disease has caused large tissue defects in the periodontium. Cell homing and cell transplantation are both scientifically meritorious approaches that show promise to completely and reliably reconstitute all tissue and connections damaged through periodontal disease, and hence research into both directions should continue. In view of periodontal regeneration by paradigms that unlock the body's innate regenerative potential has been reviewed elsewhere, this paper specifically explores and analyses the stem cell types and cell delivery strategies that have been or have the potential to be used as therapeutics in periodontal regenerative medicine, with particular emphasis placed on the efficacy and safety concerns of current stem cell-based periodontal therapies that may eventually enter into the clinic.
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Affiliation(s)
- Fa-Ming Chen
- Department of Periodontology and Oral Medicine, School of Stomatology, Fourth Military Medical University, Xi'an 710032, Shaanxi, PR China.
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Sarukawa J, Takahashi M, Abe M, Suzuki D, Tokura S, Furuike T, Tamura H. Effects of Chitosan-Coated Fibers as a Scaffold for Three-Dimensional Cultures of Rabbit Fibroblasts for Ligament Tissue Engineering. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2012; 22:717-32. [DOI: 10.1163/092050610x491067] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Affiliation(s)
- Junichiro Sarukawa
- a Department of Orthopaedic Surgery, Hamamatsu University School of Medicine, 1-20-1 Handayama, Higashi-ku, Hamamatsu, Shizuoka, Japan
| | - Masaaki Takahashi
- b Department of Orthopaedic Surgery, Hamamatsu University School of Medicine, 1-20-1 Handayama, Higashi-ku, Hamamatsu, Shizuoka, Japan
| | - Masashi Abe
- c Department of Orthopaedic Surgery, Hamamatsu University School of Medicine, 1-20-1 Handayama, Higashi-ku, Hamamatsu, Shizuoka, Japan
| | - Daisuke Suzuki
- d Department of Orthopaedic Surgery, Hamamatsu University School of Medicine, 1-20-1 Handayama, Higashi-ku, Hamamatsu, Shizuoka, Japan
| | - Seiichi Tokura
- e Department of Chemistry and Materials Engineering, Faculty of Chemistry, Materials and Bioengineering, Kansai University, Suita, Osaka, Japan
| | - Tetsuya Furuike
- f Department of Chemistry and Materials Engineering, Faculty of Chemistry, Materials and Bioengineering, Kansai University, Suita, Osaka, Japan
| | - Hiroshi Tamura
- g Department of Chemistry and Materials Engineering, Faculty of Chemistry, Materials and Bioengineering, Kansai University, Suita, Osaka, Japan
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Jung IH, Park JC, Kim JC, Jeon DW, Choi SH, Cho KS, Im GI, Kim BS, Kim CS. Novel Application of Human Periodontal Ligament Stem Cells and Water-Soluble Chitin for Collagen Tissue Regeneration:In VitroandIn VivoInvestigations. Tissue Eng Part A 2012; 18:643-53. [DOI: 10.1089/ten.tea.2011.0164] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Affiliation(s)
- Im Hee Jung
- Department of Periodontology, Research Institute for Periodontal Regeneration, College of Dentistry, Yonsei University, Seoul, South Korea
- Brain Korea 21 Project, College of Dentistry, Yonsei University, Seoul, South Korea
| | - Jung Chul Park
- Department of Periodontology, Research Institute for Periodontal Regeneration, College of Dentistry, Yonsei University, Seoul, South Korea
| | - Jane C. Kim
- Department of Periodontology, Research Institute for Periodontal Regeneration, College of Dentistry, Yonsei University, Seoul, South Korea
| | - Dong Won Jeon
- Department of Clothing and Textiles, Ewha Womans University, Seoul, South Korea
| | - Seong Ho Choi
- Department of Periodontology, Research Institute for Periodontal Regeneration, College of Dentistry, Yonsei University, Seoul, South Korea
- Brain Korea 21 Project, College of Dentistry, Yonsei University, Seoul, South Korea
| | - Kyoo Sung Cho
- Department of Periodontology, Research Institute for Periodontal Regeneration, College of Dentistry, Yonsei University, Seoul, South Korea
- Brain Korea 21 Project, College of Dentistry, Yonsei University, Seoul, South Korea
| | - Gun Il Im
- Department of Orthopedics, Dongguk University International Hospital, Goyang, Korea
| | - Byung Soo Kim
- School of Chemical and Biological Engineering, Seoul National University, Seoul, Korea
| | - Chang Sung Kim
- Department of Periodontology, Research Institute for Periodontal Regeneration, College of Dentistry, Yonsei University, Seoul, South Korea
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Sanada JT, Pereira JR, Assaoka AMF, de Godoi Zingra AC, de Oliveira PCG, do Valle AL. Tensile resistance of mineralized and demineralized rat bones in different regions (calvarial and femur). J ORAL IMPLANTOL 2011; 39:643-7. [PMID: 21241181 DOI: 10.1563/aaid-joi-d-10-00091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The aim of this study was to evaluate the tensile resistance of mineralized and demineralized bones. Twelve mice were used. Specimens were collected and divided into groups 1 and 2, mineralized and demineralized calvarial bone, and groups 3 and 4, mineralized and demineralized femoral bone. There was not a statistically significant difference (analysis of variance) between the regions; however, when comparing the demineralized and mineralized groups, a statistically significant difference (Student test) for the mineralized group was noticed.
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Kung S, Devlin H, Fu E, Ho KY, Liang SY, Hsieh YD. The osteoinductive effect of chitosan-collagen composites around pure titanium implant surfaces in rats. J Periodontal Res 2010; 46:126-33. [DOI: 10.1111/j.1600-0765.2010.01322.x] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Chesnutt BM, Yuan Y, Buddington K, Haggard WO, Bumgardner JD. Composite chitosan/nano-hydroxyapatite scaffolds induce osteocalcin production by osteoblasts in vitro and support bone formation in vivo. Tissue Eng Part A 2009; 15:2571-9. [PMID: 19309240 DOI: 10.1089/ten.tea.2008.0054] [Citation(s) in RCA: 119] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
There is a significant clinical need to develop alternatives to autografts and allografts for bone grafting procedures. Porous, biodegradable scaffolds based on the biopolymer chitosan have been investigated as bone graft substitutes, and the addition of calcium phosphate to these scaffolds has been shown to improve the mechanical properties of the scaffold and may increase osteoconductivity. In this study, in vitro mineralization was examined for osteoblasts seeded in a porous scaffold composed of fused chitosan/nano-hydroxyapatite microspheres. Human fetal osteoblasts were cultured on composite and chitosan scaffolds for 21 days. On days 1, 4, 7, 14, and 21, total dsDNA, alkaline phosphatase, type I collagen, and osteocalcin production were measured. Total cellularity (measured by dsDNA), alkaline phosphatase, and type I collagen production were similar between the two scaffold groups. However, osteocalcin production occurred significantly earlier (day 7 vs. day 21) and was more than three times greater (0.0022 vs. 0.0068 ng/mL/ng DNA) on day 21 when osteoblasts were cultured on composite scaffolds. Osteocalcin is a marker of late osteoblastic differentiation and mineralized bone matrix formation. Therefore, the increase in osteocalcin production seen when cells were cultured on composite scaffolds may indicate that these scaffolds were superior to chitosan-only scaffolds in facilitating osteoblast mineralization. Composite scaffolds were also shown to be biocompatible and osteoconductive in a preliminary critical size rat calvarial defect study. These results demonstrate the potential of composite chitosan/nano-hydroxyapatite scaffolds to be used in bone tissue engineering.
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Affiliation(s)
- Betsy M Chesnutt
- Department of Biomedical Engineering, University of Memphis, Memphis, Tennessee 38152, USA
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Ta HT, Dass CR, Larson I, Choong PF, Dunstan DE. A chitosan–dipotassium orthophosphate hydrogel for the delivery of Doxorubicin in the treatment of osteosarcoma. Biomaterials 2009; 30:3605-13. [DOI: 10.1016/j.biomaterials.2009.03.022] [Citation(s) in RCA: 114] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2009] [Accepted: 03/13/2009] [Indexed: 11/29/2022]
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Shin JA, Choi JY, Kim ST, Kim CS, Lee YK, Cho KS, Chai JK, Kim CK, Choi SH. The Effects of Hydroxyapatite-Chitosan Membrane on Bone Regeneration in Rat Calvarial Defects. ACTA ACUST UNITED AC 2009. [DOI: 10.5051/jkape.2009.39.s.213] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Jung-A Shin
- Department of Periodontology, Research Institute for Periodontal Regeneration, Yonsei University, College of Dentistry, Korea
| | - Jung-Yoo Choi
- Department of Periodontology, Research Institute for Periodontal Regeneration, Yonsei University, College of Dentistry, Korea
| | - Sung-Tae Kim
- Department of Periodontology, Research Institute for Periodontal Regeneration, Yonsei University, College of Dentistry, Korea
| | - Chang-Sung Kim
- Department of Periodontology, Research Institute for Periodontal Regeneration, Yonsei University, College of Dentistry, Korea
| | - Yong-Keun Lee
- Department and Research Institute of Dental Biomaterials and Bioengineering, Yonsei University, College of Dentistry, Korea
| | - Kyoo-Sung Cho
- Department of Periodontology, Research Institute for Periodontal Regeneration, Yonsei University, College of Dentistry, Korea
| | - Jung-Kiu Chai
- Department of Periodontology, Research Institute for Periodontal Regeneration, Yonsei University, College of Dentistry, Korea
| | - Chong-Kwan Kim
- Department of Periodontology, Research Institute for Periodontal Regeneration, Yonsei University, College of Dentistry, Korea
| | - Seong-Ho Choi
- Department of Periodontology, Research Institute for Periodontal Regeneration, Yonsei University, College of Dentistry, Korea
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Fontana CR, dos Santos Junior DS, Bosco JM, Spolidorio DM, Chiérici Marcantonio RA. Evaluation of Chitosan Gel as Antibiotic and Photosensitizer Delivery. Drug Deliv 2008; 15:417-22. [DOI: 10.1080/10717540802007433] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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Tang XJ, Gui L, Lü XY. Hard tissue compatibility of natural hydroxyapatite/chitosan composite. Biomed Mater 2008; 3:044115. [DOI: 10.1088/1748-6041/3/4/044115] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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39
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The effect of premixed schedule on the crystal formation of calcium phosphate cement-chitosan composite with added tetracycline. ACTA ACUST UNITED AC 2008; 28:483-6. [DOI: 10.1007/s11596-008-0425-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2008] [Indexed: 10/19/2022]
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40
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Zhao H, Alexeev A, Sharma V, Guzman LDT, Bojanowski K. Effect of SBD.4A - a defined multicomponent preparation ofAngelica sinensis- in periodontal regeneration models. Phytother Res 2008; 22:923-8. [DOI: 10.1002/ptr.2421] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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41
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Dass CR, Contreras KG, Dunstan DE, Choong PFM. Chitosan microparticles encapsulating PEDF plasmid demonstrate efficacy in an orthotopic metastatic model of osteosarcoma. Biomaterials 2007; 28:3026-33. [PMID: 17408737 DOI: 10.1016/j.biomaterials.2007.03.016] [Citation(s) in RCA: 57] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2006] [Accepted: 03/15/2007] [Indexed: 11/19/2022]
Abstract
The major stumbling block for most therapies against deep-seated disease, including tumours, is inefficient drug delivery. Such a concern is particularly important for osteosarcoma, the predominant form of bone cancer, and the largest cancer of its type in the paediatric age group. Pigment epithelium-derived factor (PEDF) is the most potent anti-angiogenic factor found endogenously in the body, with an increasing number of reports pointing to its direct antitumour activity. In this report, when a plasmid expressing PEDF (pPEDF) was encapsulated within two types of chitosan microparticles, anti-invasion and increased adhesion of the osteosarcoma cell line SaOS-2 was noted. Microparticles were formulated using two methods of complex coacervation and were approximately 400-600 nm in diameter. The plasmids were strongly attached to the particles which were polymorphic in shape as determined by electron microscopy. Preliminary experiments with the green fluorescent protein (GFP) reporter plasmid revealed that cells were efficiently transfected with the particles, with particles outlasting transfection with lipofectamine cationic liposomes at 5 days. In vivo, the better pPEDF microparticle resulted in a decrease in primary tumour growth, reduced bone lysis and reduced establishment of lung metastases in a clinically relevant orthotopic model of osteosarcoma. Thus, this new mode of localised gene delivery may hold promise for molecular therapy of osteosarcoma.
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Affiliation(s)
- Crispin R Dass
- Department of Orthopaedics, University of Melbourne, St. Vincent's Health, P.O. Box 2900, Fitzroy, 3065 Melbourne, Australia.
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