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He X, Lin F, Jia R, Xia Y, Liang Z, Xiao X, Hu Q, Deng X, Li Q, Sheng W. Coordinated modulation of long non-coding RNA ASBEL and curcumin co-delivery through multicomponent nanocomplexes for synchronous triple-negative breast cancer theranostics. J Nanobiotechnology 2023; 21:397. [PMID: 37904215 PMCID: PMC10617238 DOI: 10.1186/s12951-023-02168-8] [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: 08/02/2023] [Accepted: 10/18/2023] [Indexed: 11/01/2023] Open
Abstract
BACKGROUND Abnormally regulated long non-coding RNAs (lncRNAs) functions in cancer emphasize their potential to serve as potential targets for cancer therapeutic intervention. LncRNA ASBEL has been identified as oncogene and an anti-sense transcript of tumor-suppressor gene of BTG3 in triple-negative breast cancer (TNBC). RESULTS Herein, multicomponent self-assembled polyelectrolyte nanocomplexes (CANPs) based on the polyelectrolytes of bioactive hyaluronic acid (HA) and chitosan hydrochloride (CS) were designed and prepared for the collaborative modulation of oncogenic lncRNA ASBEL with antago3, an oligonucleotide antagonist targeting lncRNA ASBEL and hydrophobic curcumin (Cur) co-delivery for synergetic TNBC therapy. Antago3 and Cur co-incorporated CANPs were achieved via a one-step assembling strategy with the cooperation of noncovalent electrostatic interactions, hydrogen-bonding, and hydrophobic interactions. Moreover, the multicomponent assembled CANPs were ulteriorly decorated with a near-infrared fluorescence (NIRF) Cy-5.5 dye (FCANPs) for synchronous NIRF imaging and therapy monitoring performance. Resultantly, MDA-MB-231 cells proliferation, migration, and invasion were efficiently inhibited, and the highest apoptosis ratio was induced by FCANPs with coordination patterns. At the molecular level, effective regulation of lncRNA ASBEL/BTG3 and synchronous regulation of Bcl-2 and c-Met pathways could be observed. CONCLUSION As expected, systemic administration of FCANPs resulted in targeted and preferential accumulation of near-infrared fluorescence signal and Cur in the tumor tissue. More attractively, systemic FCANPs-mediated collaborative modulating lncRNA ASBEL/BTG3 and Cur co-delivery significantly suppressed the MDA-MB-231 xenograft tumor growth, inhibited metastasis and extended survival rate with negligible systemic toxicity. Our present study represented an effective approach to developing a promising theranostic platform for combating TNBC in a combined therapy pattern.
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Affiliation(s)
- Xuesong He
- Department of Environment and Life Science, Beijing International Science and Technology, Cooperation Base of Antivirus Drug, Beijing University of Technology, Beijing, 100124, China
| | - Fengjuan Lin
- Department of Oncology, School of Medicine, Shanghai East Hospital, Tongji University, Shanghai, 200123, China
| | - Runqing Jia
- Department of Environment and Life Science, Beijing International Science and Technology, Cooperation Base of Antivirus Drug, Beijing University of Technology, Beijing, 100124, China
| | - Yang Xia
- Department of Environment and Life Science, Beijing International Science and Technology, Cooperation Base of Antivirus Drug, Beijing University of Technology, Beijing, 100124, China
| | - Zhaoyuan Liang
- Department of Environment and Life Science, Beijing International Science and Technology, Cooperation Base of Antivirus Drug, Beijing University of Technology, Beijing, 100124, China
| | - Xiangqian Xiao
- Department of Environment and Life Science, Beijing International Science and Technology, Cooperation Base of Antivirus Drug, Beijing University of Technology, Beijing, 100124, China
| | - Qin Hu
- Department of Environment and Life Science, Beijing International Science and Technology, Cooperation Base of Antivirus Drug, Beijing University of Technology, Beijing, 100124, China
| | - Xiongwei Deng
- Department of Environment and Life Science, Beijing International Science and Technology, Cooperation Base of Antivirus Drug, Beijing University of Technology, Beijing, 100124, China.
- College of Life Science and Bioengineering, Beijing University of Technology, Beijing, 100049, China.
| | - Qun Li
- Department of Oncology, School of Medicine, Shanghai East Hospital, Tongji University, Shanghai, 200123, China.
| | - Wang Sheng
- Department of Environment and Life Science, Beijing International Science and Technology, Cooperation Base of Antivirus Drug, Beijing University of Technology, Beijing, 100124, China.
- College of Life Science and Bioengineering, Beijing University of Technology, Beijing, 100049, China.
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2
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Adamiak K, Sionkowska A. State of Innovation in Alginate-Based Materials. Mar Drugs 2023; 21:353. [PMID: 37367678 PMCID: PMC10302983 DOI: 10.3390/md21060353] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Revised: 06/05/2023] [Accepted: 06/05/2023] [Indexed: 06/28/2023] Open
Abstract
This review article presents past and current alginate-based materials in each application, showing the widest range of alginate's usage and development in the past and in recent years. The first segment emphasizes the unique characteristics of alginates and their origin. The second segment sets alginates according to their application based on their features and limitations. Alginate is a polysaccharide and generally occurs as water-soluble sodium alginate. It constitutes hydrophilic and anionic polysaccharides originally extracted from natural brown algae and bacteria. Due to its promising properties, such as gelling, moisture retention, and film-forming, it can be used in environmental protection, cosmetics, medicine, tissue engineering, and the food industry. The comparison of publications with alginate-based products in the field of environmental protection, medicine, food, and cosmetics in scientific articles showed that the greatest number was assigned to the environmental field (30,767) and medicine (24,279), whereas fewer publications were available in cosmetic (5692) and food industries (24,334). Data are provided from the Google Scholar database (including abstract, title, and keywords), accessed in May 2023. In this review, various materials based on alginate are described, showing detailed information on modified composites and their possible usage. Alginate's application in water remediation and its significant value are highlighted. In this study, existing knowledge is compared, and this paper concludes with its future prospects.
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Affiliation(s)
- Katarzyna Adamiak
- Department of Biomaterials and Cosmetic Chemistry, Faculty of Chemistry, Nicolaus Copernicus University in Torun, Gagarin 7 Street, 87-100 Torun, Poland;
- WellU sp.z.o.o., Wielkopolska 280, 81-531 Gdynia, Poland
| | - Alina Sionkowska
- Department of Biomaterials and Cosmetic Chemistry, Faculty of Chemistry, Nicolaus Copernicus University in Torun, Gagarin 7 Street, 87-100 Torun, Poland;
- Faculty of Health Sciences, Calisia University, Nowy Świat 4, 62-800 Kalisz, Poland
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3
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Broussolle T, Roux JP, Chapurlat R, Barrey C. Murine models of posterolateral spinal fusion: A systematic review. Neurochirurgie 2023; 69:101428. [PMID: 36871885 DOI: 10.1016/j.neuchi.2023.101428] [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: 12/22/2022] [Revised: 02/05/2023] [Accepted: 02/07/2023] [Indexed: 03/07/2023]
Abstract
BACKGROUND Rodent models are commonly used experimentally to assess treatment effectiveness in spinal fusion. Certain factors are associated with better fusion rates. The objectives of the present study were to report the protocols most frequently used, to evaluate factors known to positively influence fusion rate, and to identify new factors. METHOD A systematic literature search of PubMed and Web of Science found 139 experimental studies of posterolateral lumbar spinal fusion in rodent models. Data for level and location of fusion, animal strain, sex, weight and age, graft, decortication, fusion assessment and fusion and mortality rates were collected and analyzed. RESULTS The standard murine model for spinal fusion was male Sprague Dawley rats of 295g weight and 13 weeks' age, using decortication, with L4-L5 as fusion level. The last two criteria were associated with significantly better fusion rates. On manual palpation, the overall mean fusion rate in rats was 58% and the autograft mean fusion rate was 61%. Most studies evaluated fusion as a binary on manual palpation, and only a few used CT and histology. Average mortality was 3.03% in rats and 1.56% in mice. CONCLUSIONS These results suggest using a rat model, younger than 10 weeks and weighing more than 300 grams on the day of surgery, to optimize fusion rates, with decortication before grafting and fusing the L4-L5 level.
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Affiliation(s)
- T Broussolle
- Department of Spine Surgery, P. Wertheimer University Hospital, GHE, hospices civils de Lyon, université Claude-Bernard Lyon 1, Lyon, France; Inserm UMR 1033, université Claude-Bernard Lyon 1, Lyon, France.
| | - Jean-Paul Roux
- Inserm UMR 1033, université Claude-Bernard Lyon 1, Lyon, France
| | - R Chapurlat
- Inserm UMR 1033, université Claude-Bernard Lyon 1, Lyon, France
| | - C Barrey
- Department of Spine Surgery, P. Wertheimer University Hospital, GHE, hospices civils de Lyon, université Claude-Bernard Lyon 1, Lyon, France; Arts et métiers ParisTech, ENSAM, 151, boulevard de l'Hôpital, 75013 Paris, France
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4
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Ahmed Omar N, Amédée J, Letourneur D, Fricain JC, Fenelon M. Recent Advances of Pullulan and/or Dextran-Based Materials for Bone Tissue Engineering Strategies in Preclinical Studies: A Systematic Review. Front Bioeng Biotechnol 2022; 10:889481. [PMID: 35845411 PMCID: PMC9280711 DOI: 10.3389/fbioe.2022.889481] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Accepted: 05/23/2022] [Indexed: 12/09/2022] Open
Abstract
Bone tissue engineering (BTE) strategies are increasingly investigated to overcome the limitations of currently used bone substitutes and to improve the bone regeneration process. Among the natural polymers used for tissue engineering, dextran and pullulan appear as natural hydrophilic polysaccharides that became promising biomaterials for BTE. This systematic review aimed to present the different published applications of pullulan and dextran-based biomaterials for BTE. An electronic search in Pubmed, Scopus, and Web of Science databases was conducted. Selection of articles was performed following PRISMA guidelines. This systematic review led to the inclusion of 28 articles on the use of pullulan and/or dextran-based biomaterials to promote bone regeneration in preclinical models. Sixteen studies focused on dextran-based materials for bone regeneration, six on pullulan substitutes and six on the combination of pullulan and dextran. Several strategies have been developed to provide bone regeneration capacity, mainly through their fabrication processes (functionalization methods, cross-linking process), or the addition of bioactive elements. We have summarized here the strategies employed to use the polysaccharide scaffolds (fabrication process, composition, application usages, route of administration), and we highlighted their relevance and limitations for BTE applications.
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Affiliation(s)
| | - Joëlle Amédée
- Université de Bordeaux, INSERM U1026, BIOTIS, Bordeaux, France
| | - Didier Letourneur
- SILTISS, Saint-Viance, France
- Université Paris Cité, Université Sorbonne Paris Nord, INSERM U1148, LVTS, X Bichat Hospital, Université de Paris, Paris, France
| | - Jean-Christophe Fricain
- Université de Bordeaux, INSERM U1026, BIOTIS, Bordeaux, France
- Service de Chirurgie Orale, CHU Bordeaux, Bordeaux, France
| | - Mathilde Fenelon
- Université de Bordeaux, INSERM U1026, BIOTIS, Bordeaux, France
- Service de Chirurgie Orale, CHU Bordeaux, Bordeaux, France
- *Correspondence: Mathilde Fenelon,
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5
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Bacterial Biopolymer: Its Role in Pathogenesis to Effective Biomaterials. Polymers (Basel) 2021; 13:polym13081242. [PMID: 33921239 PMCID: PMC8069653 DOI: 10.3390/polym13081242] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2021] [Revised: 03/12/2021] [Accepted: 03/16/2021] [Indexed: 12/17/2022] Open
Abstract
Bacteria are considered as the major cell factories, which can effectively convert nitrogen and carbon sources to a wide variety of extracellular and intracellular biopolymers like polyamides, polysaccharides, polyphosphates, polyesters, proteinaceous compounds, and extracellular DNA. Bacterial biopolymers find applications in pathogenicity, and their diverse materialistic and chemical properties make them suitable to be used in medicinal industries. When these biopolymer compounds are obtained from pathogenic bacteria, they serve as important virulence factors, but when they are produced by non-pathogenic bacteria, they act as food components or biomaterials. There have been interdisciplinary studies going on to focus on the molecular mechanism of synthesis of bacterial biopolymers and identification of new targets for antimicrobial drugs, utilizing synthetic biology for designing and production of innovative biomaterials. This review sheds light on the mechanism of synthesis of bacterial biopolymers and its necessary modifications to be used as cell based micro-factories for the production of tailor-made biomaterials for high-end applications and their role in pathogenesis.
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6
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Advances in the Fabrication of Scaffold and 3D Printing of Biomimetic Bone Graft. Ann Biomed Eng 2021; 49:1128-1150. [PMID: 33674908 DOI: 10.1007/s10439-021-02752-9] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Accepted: 02/14/2021] [Indexed: 12/26/2022]
Abstract
The need for bone grafts is tremendous, and that leads to the use of autograft, allograft, and bone graft substitutes. The biology of the bone is quite complex regarding cellular composition and architecture, hence developing a mineralized connective tissue graft is challenging. Traditionally used bone graft substitutes including metals, biomaterial coated metals and biodegradable scaffolds, suffer from persistent limitations. With the advent and rise of additive manufacturing technologies, the future of repairing bone trauma and defects seems to be optimistic. 3D printing has significant advantages, the foremost of all being faster manipulation of various biocompatible materials and live cells or tissues into the complex natural geometries necessary to mimic and stimulate cellular bone growth. The advent of new-generation bioprinters working with high-precision, micro-dispensing and direct digital manufacturing is aiding in ground-breaking organ and tissue printing, including the bone. The future bone replacement for patients holds excellent promise as scientists are moving closer to the generation of better 3D printed bio-bone grafts that will be safer and more effective. This review aims to summarize the advances in scaffold fabrication techniques, emphasizing 3D printing of biomimetic bone grafts.
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7
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Łabowska MB, Cierluk K, Jankowska AM, Kulbacka J, Detyna J, Michalak I. A Review on the Adaption of Alginate-Gelatin Hydrogels for 3D Cultures and Bioprinting. MATERIALS (BASEL, SWITZERLAND) 2021; 14:858. [PMID: 33579053 PMCID: PMC7916803 DOI: 10.3390/ma14040858] [Citation(s) in RCA: 78] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Revised: 01/12/2021] [Accepted: 02/02/2021] [Indexed: 12/13/2022]
Abstract
Sustaining the vital functions of cells outside the organism requires strictly defined parameters. In order to ensure their optimal growth and development, it is necessary to provide a range of nutrients and regulators. Hydrogels are excellent materials for 3D in vitro cell cultures. Their ability to retain large amounts of liquid, as well as their biocompatibility, soft structures, and mechanical properties similar to these of living tissues, provide appropriate microenvironments that mimic extracellular matrix functions. The wide range of natural and synthetic polymeric materials, as well as the simplicity of their physico-chemical modification, allow the mechanical properties to be adjusted for different requirements. Sodium alginate-based hydrogel is a frequently used material for cell culture. The lack of cell-interactive properties makes this polysaccharide the most often applied in combination with other materials, including gelatin. The combination of both materials increases their biological activity and improves their material properties, making this combination a frequently used material in 3D printing technology. The use of hydrogels as inks in 3D printing allows the accurate manufacturing of scaffolds with complex shapes and geometries. The aim of this paper is to provide an overview of the materials used for 3D cell cultures, which are mainly alginate-gelatin hydrogels, including their properties and potential applications.
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Affiliation(s)
- Magdalena B. Łabowska
- Department of Mechanics, Materials and Biomedical Engineering, Faculty of Mechanical Engineering, Wroclaw University of Science and Technology, Smoluchowskiego 25, 50-370 Wroclaw, Poland; (M.B.Ł); (A.M.J.)
| | - Karolina Cierluk
- Faculty of Chemistry, Wroclaw University of Science and Technology, Norwida 4/6, 50-373 Wroclaw, Poland;
| | - Agnieszka M. Jankowska
- Department of Mechanics, Materials and Biomedical Engineering, Faculty of Mechanical Engineering, Wroclaw University of Science and Technology, Smoluchowskiego 25, 50-370 Wroclaw, Poland; (M.B.Ł); (A.M.J.)
| | - Julita Kulbacka
- Department of Molecular and Cellular Biology, Faculty of Pharmacy, Wroclaw Medical University, Borowska 211A, 50-556 Wroclaw, Poland;
| | - Jerzy Detyna
- Department of Mechanics, Materials and Biomedical Engineering, Faculty of Mechanical Engineering, Wroclaw University of Science and Technology, Smoluchowskiego 25, 50-370 Wroclaw, Poland; (M.B.Ł); (A.M.J.)
| | - Izabela Michalak
- Department of Advanced Material Technologies, Faculty of Chemistry, Wroclaw University of Science and Technology, Smoluchowskiego 25, 50-370 Wroclaw, Poland;
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8
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Patel A, Sant V, Velankar S, Dutta M, Balasubramanian V, Sane P, Agrawal V, Wilson J, Rohan LC, Sant S. Self-assembly of multiscale anisotropic hydrogels through interfacial polyionic complexation. J Biomed Mater Res A 2020; 108:2504-2518. [PMID: 32418322 DOI: 10.1002/jbm.a.37001] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2020] [Revised: 04/06/2020] [Accepted: 04/19/2020] [Indexed: 12/11/2022]
Abstract
Polysaccharides are explored for various tissue engineering applications due to their inherent cytocompatibility and ability to form bulk hydrogels. However, bulk hydrogels offer poor control over their microarchitecture and multiscale hierarchy, parameters important to recreate extracellular matrix-mimetic microenvironment. Here, we developed a versatile platform technology to self-assemble oppositely charged polysaccharides into multiscale fibrous hydrogels with controlled anisotropic microarchitecture. We employed polyionic complexation through microfluidic flow of positively charged polysaccharide, chitosan, along with one of the three negatively charged polysaccharides: alginate, gellan gum, and kappa carrageenan. These hydrogels were composed of microscale fibers, which in turn were made of submicron fibrils confirming multiscale hierarchy. Fibrous hydrogels showed strong tensile mechanical properties, which were further modulated by encapsulation of shape-specific antioxidant cerium oxide nanoparticles (CNPs). Specifically, hydrogels with chitosan and gellan gum showed more than eight times higher tensile strength compared to the other two pairs. Incorporation of sphere-shaped cerium oxide nanoparticles in chitosan and gellan gum further reinforced fibrous hydrogels and increased their tensile strength by 40%. Altogether, our automated hydrogel fabrication platform allows fabrication of bioinspired biomaterials with scope for one-step encapsulation of small molecules and nanoparticles without chemical modification or use of chemical crosslinkers.
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Affiliation(s)
- Akhil Patel
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Vinayak Sant
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Sachin Velankar
- Department of Chemical and Petroleum Engineering, Swanson School of Engineering, University of Pittsburgh, Pittsburgh, Pennsylvania, USA.,Department of Mechanical Engineering & Materials Science , Swanson School of Engineering, University of Pittsburgh, Pittsburgh, Pennsylvania, USA.,McGowan Institute for Regenerative Medicine, Pittsburgh, Pennsylvania, USA
| | - Mayuri Dutta
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Vibishan Balasubramanian
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Piyusha Sane
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Vishi Agrawal
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Jamir Wilson
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Lisa C Rohan
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Pittsburgh, Pittsburgh, Pennsylvania, USA.,Magee Women's Research Institute, Pittsburgh, Pennsylvania, USA
| | - Shilpa Sant
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Pittsburgh, Pittsburgh, Pennsylvania, USA.,McGowan Institute for Regenerative Medicine, Pittsburgh, Pennsylvania, USA.,Department of Bioengineering, Swanson School of Engineering, University of Pittsburgh, Pittsburgh, Pennsylvania, USA.,UPMC Hillman Cancer Center, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
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9
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Enriquez-Ochoa D, Robles-Ovalle P, Mayolo-Deloisa K, Brunck MEG. Immobilization of Growth Factors for Cell Therapy Manufacturing. Front Bioeng Biotechnol 2020; 8:620. [PMID: 32637403 PMCID: PMC7317031 DOI: 10.3389/fbioe.2020.00620] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Accepted: 05/20/2020] [Indexed: 12/21/2022] Open
Abstract
Cell therapy products exhibit great therapeutic potential but come with a deterring price tag partly caused by their costly manufacturing processes. The development of strategies that lead to cost-effective cell production is key to expand the reach of cell therapies. Growth factors are critical culture media components required for the maintenance and differentiation of cells in culture and are widely employed in cell therapy manufacturing. However, they are expensive, and their common use in soluble form is often associated with decreased stability and bioactivity. Immobilization has emerged as a possible strategy to optimize growth factor use in cell culture. To date, several immobilization techniques have been reported for attaching growth factors onto a variety of biomaterials, but these have been focused on tissue engineering. This review briefly summarizes the current landscape of cell therapy manufacturing, before describing the types of chemistry that can be used to immobilize growth factors for cell culture. Emphasis is placed to identify strategies that could reduce growth factor usage and enhance bioactivity. Finally, we describe a case study for stem cell factor.
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Affiliation(s)
| | | | - Karla Mayolo-Deloisa
- Tecnologico de Monterrey, School of Engineering and Science, FEMSA Biotechnology Center, Monterrey, Mexico
| | - Marion E. G. Brunck
- Tecnologico de Monterrey, School of Engineering and Science, FEMSA Biotechnology Center, Monterrey, Mexico
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10
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Liu L, Lam WMR, Yang Z, Wang M, Ren X, Hu T, Li J, Goh JCH, Wong HK. Improving the handling properties and long-term stability of polyelectrolyte complex by freeze-drying technique for low-dose bone morphogenetic protein 2 delivery. J Biomed Mater Res B Appl Biomater 2020; 108:2450-2460. [PMID: 32017424 DOI: 10.1002/jbm.b.34577] [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: 08/26/2019] [Revised: 01/06/2020] [Accepted: 01/20/2020] [Indexed: 11/09/2022]
Abstract
A variety of controlled release carriers for bone morphogenetic protein 2 (BMP-2) delivery have been developed and tested in animal models. An alginate-based polyelectrolyte complex (PEC) for controlled release of low-dose BMP-2 has shown promising results in preclinical research. However, the poor handling properties and long-term stability of PEC need to be improved for translational applications. This study aimed to address these limitations of alginate-based PEC by employing a freeze-drying technique. The size and structure of freeze-dried PEC (FD-PEC) were maintained with the addition of a cryoprotectant, trehalose. The release profile of BMP-2 from FD-PEC was similar to that of freshly prepared PEC. In vitro bioactivity analysis of the released BMP-2 showed that the carrier performance of PEC was not compromised by freeze-drying up to three-month storage at room temperature. BMP-2-bound FD-PEC induced comparable bone formation to that using freshly prepared regular PEC in a rat posterolateral spinal fusion model. These results suggest that FD-PEC is capable of delivering low-dose BMP-2 and could be developed as an off-the-shelf product for translational applications. The simplicity of this preservation method provides promise for the translational application of PEC.
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Affiliation(s)
- Ling Liu
- Department of Orthopaedic Surgery, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Wing M R Lam
- Department of Orthopaedic Surgery, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Zheng Yang
- NUS Tissue Engineering Program (NUSTEP), Life Sciences Institute, National University of Singapore, Singapore
| | - Ming Wang
- Department of Orthopaedic Surgery, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Xiafei Ren
- Department of Orthopaedic Surgery, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Tao Hu
- Department of Spine Surgery, Shanghai East Hospital, Shanghai, China
| | - Jun Li
- Department of Biomedical Engineering, Faculty of Engineering, National University of Singapore, Singapore
| | - James Cho-Hong Goh
- NUS Tissue Engineering Program (NUSTEP), Life Sciences Institute, National University of Singapore, Singapore.,Department of Biomedical Engineering, Faculty of Engineering, National University of Singapore, Singapore
| | - Hee-Kit Wong
- Department of Orthopaedic Surgery, Yong Loo Lin School of Medicine, National University of Singapore, Singapore.,NUS Tissue Engineering Program (NUSTEP), Life Sciences Institute, National University of Singapore, Singapore
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11
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Li C, Ouyang L, Pence IJ, Moore AC, Lin Y, Winter CW, Armstrong JPK, Stevens MM. Buoyancy-Driven Gradients for Biomaterial Fabrication and Tissue Engineering. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2019; 31:e1900291. [PMID: 30844123 PMCID: PMC6606439 DOI: 10.1002/adma.201900291] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/14/2019] [Revised: 02/18/2019] [Indexed: 05/25/2023]
Abstract
The controlled fabrication of gradient materials is becoming increasingly important as the next generation of tissue engineering seeks to produce inhomogeneous constructs with physiological complexity. Current strategies for fabricating gradient materials can require highly specialized materials or equipment and cannot be generally applied to the wide range of systems used for tissue engineering. Here, the fundamental physical principle of buoyancy is exploited as a generalized approach for generating materials bearing well-defined compositional, mechanical, or biochemical gradients. Gradient formation is demonstrated across a range of different materials (e.g., polymers and hydrogels) and cargos (e.g., liposomes, nanoparticles, extracellular vesicles, macromolecules, and small molecules). As well as providing versatility, this buoyancy-driven gradient approach also offers speed (<1 min) and simplicity (a single injection) using standard laboratory apparatus. Moreover, this technique is readily applied to a major target in complex tissue engineering: the osteochondral interface. A bone morphogenetic protein 2 gradient, presented across a gelatin methacryloyl hydrogel laden with human mesenchymal stem cells, is used to locally stimulate osteogenesis and mineralization in order to produce integrated osteochondral tissue constructs. The versatility and accessibility of this fabrication platform should ensure widespread applicability and provide opportunities to generate other gradient materials or interfacial tissues.
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Affiliation(s)
- Chunching Li
- Department of Materials, Department of Bioengineering and Institute of Biomedical Engineering, Imperial College London, Prince Consort Road, London, SW7 2AZ, United Kingdom
| | - Liliang Ouyang
- Department of Materials, Department of Bioengineering and Institute of Biomedical Engineering, Imperial College London, Prince Consort Road, London, SW7 2AZ, United Kingdom
| | - Isaac J. Pence
- Department of Materials, Department of Bioengineering and Institute of Biomedical Engineering, Imperial College London, Prince Consort Road, London, SW7 2AZ, United Kingdom
| | - Axel C. Moore
- Department of Materials, Department of Bioengineering and Institute of Biomedical Engineering, Imperial College London, Prince Consort Road, London, SW7 2AZ, United Kingdom
| | - Yiyang Lin
- Department of Materials, Department of Bioengineering and Institute of Biomedical Engineering, Imperial College London, Prince Consort Road, London, SW7 2AZ, United Kingdom
| | - Charles W. Winter
- Department of Materials, Department of Bioengineering and Institute of Biomedical Engineering, Imperial College London, Prince Consort Road, London, SW7 2AZ, United Kingdom
| | - James P. K. Armstrong
- Department of Materials, Department of Bioengineering and Institute of Biomedical Engineering, Imperial College London, Prince Consort Road, London, SW7 2AZ, United Kingdom
| | - Molly M. Stevens
- Department of Materials, Department of Bioengineering and Institute of Biomedical Engineering, Imperial College London, Prince Consort Road, London, SW7 2AZ, United Kingdom
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12
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Hu T, Naidu M, Yang Z, Lam WM, Kumarsing RA, Ren X, Ng F, Wang M, Liu L, Tan KC, Kwok KT, Goodman SB, Goh JCH, Wong HK. Bone Regeneration by Controlled Release of Bone Morphogenetic Protein-2: A Rabbit Spinal Fusion Chamber Molecular Study. Tissue Eng Part A 2019; 25:1356-1368. [PMID: 30727849 DOI: 10.1089/ten.tea.2018.0281] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Recombinant human bone morphogenetic protein-2 (rhBMP-2) has been widely used in spine fusion surgery. However, high doses of rhBMP-2 delivered with absorbable collagen sponge (ACS) have led to inflammation-related adverse conditions. Polyelectrolyte complex (PEC) control release carrier can substantially reduce the rhBMP-2 dose and complication without compromising fusion. The molecular events underlying controlled release and their effects on spinal fusion remain unknown. In this study, a rabbit interbody spinal fusion chamber was designed to provide a controlled environment for profiling molecular events during the fusion process. Study groups included Group 1, PEC with 100 μg rhBMP-2; Group 2, ACS with 100 μg rhBMP-2; Group 3, ACS with 300 μg rhBMP-2; Group 4, autologous bone graft; and Group 5, empty chamber. Manual palpation, microcomputed tomography, and histological analysis showed that Group 1 and 3 achieved bone fusion, while the other groups showed no signs of fusion. Gene expression profiling showed robust induction of osteogenic markers in Groups 1 and 3, with modulated early induction of inflammatory genes in the PEC group. Delivery of 100 μg rhBMP-2 with ACS (Group 2) resulted in less upregulation of osteogenic genes, increased inflammatory genes expression, and upregulation of osteoclastic genes compared to Group 1. These results suggest that the manner of BMP-2 release at the interbody spinal defect site could dictate the balance of in-situ osteogenic and antiosteogenic activities, affecting fusion outcomes. The molecular evidence supports PEC for sustained release of BMP-2 for spinal interbody fusion, and the feasibility of employing this novel interbody spinal fusion chamber for future molecular studies. Impact Statement A radiolucent rabbit interbody spinal fusion chamber was developed to study the molecular events during spinal fusion process. The gene expression profile suggests that control release of bone morphogenetic protein-2 (BMP-2) resulted in lower inflammatory and osteoclastic activities, but elicited higher osteogenic activities, while burst release of BMP-2 resulted in predominantly inflammation and osteoclastogenesis with minimum osteogenic activity. This study provides the molecular evidence that underscores the regeneration outcomes from the two different BMP-2 delivery systems. This spinal fusion chamber could be used for future molecular studies to optimize carrier design for spinal fusion.
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Affiliation(s)
- Tao Hu
- Department of Orthopaedic Surgery, Yong Loo Lin School of Medicine, National University of Singapore (NUS), Singapore, Singapore
| | - Mathanapriya Naidu
- Department of Orthopaedic Surgery, Yong Loo Lin School of Medicine, National University of Singapore (NUS), Singapore, Singapore.,NUS Tissue Engineering Program (NUSTEP), National University of Singapore, Singapore, Singapore
| | - Zheng Yang
- Department of Orthopaedic Surgery, Yong Loo Lin School of Medicine, National University of Singapore (NUS), Singapore, Singapore.,NUS Tissue Engineering Program (NUSTEP), National University of Singapore, Singapore, Singapore
| | - Wing Moon Lam
- Department of Orthopaedic Surgery, Yong Loo Lin School of Medicine, National University of Singapore (NUS), Singapore, Singapore.,NUS Tissue Engineering Program (NUSTEP), National University of Singapore, Singapore, Singapore
| | - Ramruttun Amit Kumarsing
- Department of Orthopaedic Surgery, Yong Loo Lin School of Medicine, National University of Singapore (NUS), Singapore, Singapore
| | - Xiafei Ren
- Department of Orthopaedic Surgery, Yong Loo Lin School of Medicine, National University of Singapore (NUS), Singapore, Singapore
| | - Felly Ng
- Department of Orthopaedic Surgery, Yong Loo Lin School of Medicine, National University of Singapore (NUS), Singapore, Singapore
| | - Ming Wang
- Department of Orthopaedic Surgery, Yong Loo Lin School of Medicine, National University of Singapore (NUS), Singapore, Singapore
| | - Ling Liu
- Department of Orthopaedic Surgery, Yong Loo Lin School of Medicine, National University of Singapore (NUS), Singapore, Singapore
| | - Kim Cheng Tan
- School of Engineering, Temasek Polytechnic, Singapore, Singapore
| | - Kai Thong Kwok
- School of Engineering, Temasek Polytechnic, Singapore, Singapore
| | - Stuart B Goodman
- Department of Orthopaedic Surgery, Stanford University Medical Center, Stanford, California
| | - James Cho-Hong Goh
- Department of Orthopaedic Surgery, Yong Loo Lin School of Medicine, National University of Singapore (NUS), Singapore, Singapore.,NUS Tissue Engineering Program (NUSTEP), National University of Singapore, Singapore, Singapore.,Department of Biomedical Engineering, Faculty of Engineering, National University of Singapore, Singapore, Singapore
| | - Hee-Kit Wong
- Department of Orthopaedic Surgery, Yong Loo Lin School of Medicine, National University of Singapore (NUS), Singapore, Singapore.,NUS Tissue Engineering Program (NUSTEP), National University of Singapore, Singapore, Singapore
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13
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Marine Polysaccharides: Biomedical and Tissue Engineering Applications. SPRINGER SERIES IN BIOMATERIALS SCIENCE AND ENGINEERING 2019. [DOI: 10.1007/978-981-13-8855-2_19] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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14
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Li C, Armstrong JP, Pence IJ, Kit-Anan W, Puetzer JL, Correia Carreira S, Moore AC, Stevens MM. Glycosylated superparamagnetic nanoparticle gradients for osteochondral tissue engineering. Biomaterials 2018; 176:24-33. [PMID: 29852377 PMCID: PMC6018621 DOI: 10.1016/j.biomaterials.2018.05.029] [Citation(s) in RCA: 69] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2018] [Revised: 04/27/2018] [Accepted: 05/19/2018] [Indexed: 12/21/2022]
Abstract
In developmental biology, gradients of bioactive signals direct the formation of structural transitions in tissue that are key to physiological function. Failure to reproduce these native features in an in vitro setting can severely limit the success of bioengineered tissue constructs. In this report, we introduce a facile and rapid platform that uses magnetic field alignment of glycosylated superparamagnetic iron oxide nanoparticles, pre-loaded with growth factors, to pattern biochemical gradients into a range of biomaterial systems. Gradients of bone morphogenetic protein 2 in agarose hydrogels were used to spatially direct the osteogenesis of human mesenchymal stem cells and generate robust osteochondral tissue constructs exhibiting a clear mineral transition from bone to cartilage. Interestingly, the smooth gradients in growth factor concentration gave rise to biologically-relevant, emergent structural features, including a tidemark transition demarcating mineralized and non-mineralized tissue and an osteochondral interface rich in hypertrophic chondrocytes. This platform technology offers great versatility and provides an exciting new opportunity for overcoming a range of interfacial tissue engineering challenges.
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Affiliation(s)
- Chunching Li
- Department of Materials, Department of Bioengineering and Institute of Biomedical Engineering, Imperial College London, Prince Consort Road, London, SW7 2AZ, United Kingdom
| | - James Pk Armstrong
- Department of Materials, Department of Bioengineering and Institute of Biomedical Engineering, Imperial College London, Prince Consort Road, London, SW7 2AZ, United Kingdom
| | - Isaac J Pence
- Department of Materials, Department of Bioengineering and Institute of Biomedical Engineering, Imperial College London, Prince Consort Road, London, SW7 2AZ, United Kingdom
| | - Worrapong Kit-Anan
- Department of Materials, Department of Bioengineering and Institute of Biomedical Engineering, Imperial College London, Prince Consort Road, London, SW7 2AZ, United Kingdom
| | - Jennifer L Puetzer
- Department of Materials, Department of Bioengineering and Institute of Biomedical Engineering, Imperial College London, Prince Consort Road, London, SW7 2AZ, United Kingdom
| | - Sara Correia Carreira
- H. H. Wills Physics Laboratory, University of Bristol, Tyndall Avenue, Bristol, BS8 1TL, United Kingdom
| | - Axel C Moore
- Department of Materials, Department of Bioengineering and Institute of Biomedical Engineering, Imperial College London, Prince Consort Road, London, SW7 2AZ, United Kingdom
| | - Molly M Stevens
- Department of Materials, Department of Bioengineering and Institute of Biomedical Engineering, Imperial College London, Prince Consort Road, London, SW7 2AZ, United Kingdom.
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15
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Bhakta G, Ekaputra AK, Rai B, Abbah SA, Tan TC, Le BQ, Chatterjea A, Hu T, Lin T, Arafat MT, van Wijnen AJ, Goh J, Nurcombe V, Bhakoo K, Birch W, Xu L, Gibson I, Wong HK, Cool SM. Fabrication of polycaprolactone-silanated β-tricalcium phosphate-heparan sulfate scaffolds for spinal fusion applications. Spine J 2018; 18:818-830. [PMID: 29269312 DOI: 10.1016/j.spinee.2017.12.002] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/04/2017] [Revised: 11/08/2017] [Accepted: 12/11/2017] [Indexed: 02/03/2023]
Abstract
BACKGROUND CONTEXT Interbody spinal fusion relies on the use of external fixation and the placement of a fusion cage filled with graft materials (scaffolds) without regard for their mechanical performance. Stability at the fusion site is instead reliant on fixation hardware combined with a selected cage. Ideally, scaffolds placed into the cage should both support the formation of new bone and contribute to the mechanical stability at the fusion site. PURPOSE We recently developed a scaffold consisting of silane-modified PCL-TCP (PCL-siTCP) with mechanical properties that can withstand the higher loads generated in the spine. To ensure the scaffold more closely mimicked the bone matrix, we incorporated collagen (Col) and a heparan sulfate glycosaminoglycan sugar (HS3) with increased affinity for heparin-binding proteins such as bone morphogenetic protein-2 (BMP-2). The osteostimulatory characteristic of this novel device delivering exogenous BMP2 was assessed in vitro and in vivo as a prelude to future spinal fusion studies with this device. STUDY DESIGN/SETTING A combination of cell-free assays (BMP2 release), progenitor cell-based assays (BMP2 bioactivity, cell proliferation and differentiation), and rodent ectopic bone formation assays was used to assess the osteostimulatory characteristics of the PCL-siTCP-based scaffolds. MATERIALS AND METHODS Freshly prepared rat mesenchymal stem cells were used to determine reparative cell proliferation and differentiation on the PCL-siTCP-based scaffolds over a 28-day period in vitro. The bioactivity of BMP2 released from the scaffolds was assessed on progenitor cells over a 28-day period using ALP activity assays and release kinetics as determined by enzyme-linked immunosorbent assay. For ectopic bone formation, intramuscular placement of scaffolds into Sprague Dawley rats (female, 4 weeks old, 120-150 g) was achieved in five animals, each receiving four treatments randomized for location along the limb. The four groups tested were (1) PCL-siTCP/Col (5-mm diameter×1-mm thickness), PCL-siTCP/Col/BMP2 (5 µg), (3) PCL-siTCP/Col/HS3 (25 µg), and (4) PCL-siTCP/Col/HS3/BMP2 (25 and 5 µg, respectively). Bone formation was evaluated at 8 weeks post implantation by microcomputed tomography (µCT) and histology. RESULTS Progenitor cell-based assays (proliferation, mRNA transcripts, and ALP activity) confirmed that BMP2 released from PCL-siTCP/Col/HS3 scaffolds increased ALP expression and mRNA levels of the osteogenic biomarkers Runx2, Col1a2, ALP, and bone gla protein-osteocalcin compared with devices without HS3. When the PCL-siTCP/Col/HS3/BMP2 scaffolds were implanted into rat hamstring muscle, increased bone formation (as determined by two-dimensional and three-dimensional µCTs and histologic analyses) was observed compared with scaffolds lacking BMP2. More consistent increases in the amount of ectopic bone were observed for the PCL-siTCP/Col/HS3/BMP2 implants compared with PCL-siTCP/Col/BMP2. Also, increased mineralizing tissue within the pores of the scaffold was seen with modified-tetrachrome histology, a result confirmed by µCT, and a modest but detectable increase in both the number and the thickness of ectopic bone structures were observed with the PCL-siTCP/Col/HS3/BMP2 implants. CONCLUSIONS The combination of PCL-siTCP/Col/HS3/BMP2 thus represents a promising avenue for further development as a bone graft alternative for spinal fusion surgery.
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Affiliation(s)
- Gajadhar Bhakta
- Institute of Medical Biology, A*STAR, 8A Biomedical Grove, #06-06 Immunos, Singapore 138648, Singapore
| | - Andrew K Ekaputra
- Institute of Medical Biology, A*STAR, 8A Biomedical Grove, #06-06 Immunos, Singapore 138648, Singapore
| | - Bina Rai
- Institute of Medical Biology, A*STAR, 8A Biomedical Grove, #06-06 Immunos, Singapore 138648, Singapore
| | - Sunny A Abbah
- Department of Orthopaedic Surgery, Yong Loo Lin School of Medicine, National University of Singapore, NUHS Tower Block, Level 11, 1E Kent Ridge Rd, Singapore 119288, Singapore
| | - Tuan Chun Tan
- Institute of Medical Biology, A*STAR, 8A Biomedical Grove, #06-06 Immunos, Singapore 138648, Singapore
| | - Bach Quang Le
- Institute of Medical Biology, A*STAR, 8A Biomedical Grove, #06-06 Immunos, Singapore 138648, Singapore
| | - Anindita Chatterjea
- Institute of Medical Biology, A*STAR, 8A Biomedical Grove, #06-06 Immunos, Singapore 138648, Singapore
| | - Tao Hu
- Department of Orthopaedic Surgery, Yong Loo Lin School of Medicine, National University of Singapore, NUHS Tower Block, Level 11, 1E Kent Ridge Rd, Singapore 119288, Singapore
| | - Tingxuan Lin
- Institute of Medical Biology, A*STAR, 8A Biomedical Grove, #06-06 Immunos, Singapore 138648, Singapore
| | - M Tarik Arafat
- Department of Mechanical Engineering, National University of Singapore, 9 Engineering Drive 1 Block EA, 07-08, Singapore 117576, Singapore
| | - Andre J van Wijnen
- Department of Orthopedic Surgery, Mayo Clinic, 200 First St SW, Rochester, MN 55905, USA
| | - James Goh
- Department of Biomedical Engineering, National University of Singapore, 4 Engineering Drive 3, E4 #04-08, Singapore 117583, Singapore
| | - Victor Nurcombe
- Institute of Medical Biology, A*STAR, 8A Biomedical Grove, #06-06 Immunos, Singapore 138648, Singapore
| | - Kishore Bhakoo
- Department of Orthopaedic Surgery, Yong Loo Lin School of Medicine, National University of Singapore, NUHS Tower Block, Level 11, 1E Kent Ridge Rd, Singapore 119288, Singapore; Singapore Bioimaging Consortium, 11 Biopolis Way, #01-02 Helios, Singapore 138667, Singapore
| | - William Birch
- Institute of Materials Research & Engineering, #08-03, 2 Fusionopolis Way, Innovis, 138634, Singapore
| | - Li Xu
- Institute of Materials Research & Engineering, #08-03, 2 Fusionopolis Way, Innovis, 138634, Singapore
| | - Ian Gibson
- Department of Mechanical Engineering, National University of Singapore, 9 Engineering Drive 1 Block EA, 07-08, Singapore 117576, Singapore
| | - Hee-Kit Wong
- Department of Orthopaedic Surgery, Yong Loo Lin School of Medicine, National University of Singapore, NUHS Tower Block, Level 11, 1E Kent Ridge Rd, Singapore 119288, Singapore
| | - Simon M Cool
- Institute of Medical Biology, A*STAR, 8A Biomedical Grove, #06-06 Immunos, Singapore 138648, Singapore; Department of Orthopaedic Surgery, Yong Loo Lin School of Medicine, National University of Singapore, NUHS Tower Block, Level 11, 1E Kent Ridge Rd, Singapore 119288, Singapore.
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16
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Duarte RM, Varanda P, Reis RL, Duarte ARC, Correia-Pinto J. Biomaterials and Bioactive Agents in Spinal Fusion. TISSUE ENGINEERING PART B-REVIEWS 2017; 23:540-551. [DOI: 10.1089/ten.teb.2017.0072] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Rui M. Duarte
- School of Medicine, University of Minho, Braga, Portugal
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal
- ICVS/3B's—PT Government Associate Laboratory, Braga/Guimarães, Portugal
- Orthopedic Surgery Department, Hospital de Braga, Braga, Portugal
| | - Pedro Varanda
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal
- ICVS/3B's—PT Government Associate Laboratory, Braga/Guimarães, Portugal
- Orthopedic Surgery Department, Hospital de Braga, Braga, Portugal
| | - Rui L. Reis
- ICVS/3B's—PT Government Associate Laboratory, Braga/Guimarães, Portugal
- 3B's Research Group—Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, Barco, Portugal
| | - Ana Rita C. Duarte
- ICVS/3B's—PT Government Associate Laboratory, Braga/Guimarães, Portugal
- 3B's Research Group—Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, Barco, Portugal
| | - Jorge Correia-Pinto
- School of Medicine, University of Minho, Braga, Portugal
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal
- ICVS/3B's—PT Government Associate Laboratory, Braga/Guimarães, Portugal
- Pediatric Surgery Department, Hospital de Braga, Braga, Portugal
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17
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Green DW, Watson GS, Watson JA, Lee JM, Jung HS. Use of Tethered Hydrogel Microcoatings for Mesenchymal Stem Cell Equilibrium, Differentiation, and Self-Organization into Microtissues. ACTA ACUST UNITED AC 2017; 1:e1700116. [PMID: 32646160 DOI: 10.1002/adbi.201700116] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2017] [Revised: 09/08/2017] [Indexed: 01/29/2023]
Abstract
Therapeutic adult mesenchymal stem cells (MSCs) lose multipotency and multilineage specialization in culture and after transplantation due to the absence of complex biological architecture. Here, it is shown that a transient ultrathin covering of permeable biomaterial can be differentially formulated to either preserve multipotency or induce multidifferentiation. Accordingly, populations of single, spherical MSCs in suspended media with high selectivity and specificity can be coated. Assembly of single, double, and triple hydrogel layers at MSC membranes is initiated by first attaching MSC-specific immunoglobulins onto CD90 or Stro-1 receptors and UEA-1 and soybean lectins. A secondary biotinylated immunoglobulin is targeted for avidin binding, which becomes an attractor for biotinylated alginate or hyaluronate, which are subsequently stiffened and gelled, in situ around the entire cell surface. Alginate microcoatings permeated with mobile BMP-2-induced osteospecialized tissue, vascular endothelial growth factor (VEGF) induced microcapillary formation, while microcoatings, with selected basement membrane proteins, preserve the multipotent phenotype of MSCs, for continuing rounds of culture and directed specialization. Furthermore, forced packing of microcoated MSC populations creates prototypical tissue compartments: the coating partially simulating the extracellular matrix structures. Remarkably, microcoated MSC clusters show a tremendous simulation of a common embryological tissue transformation into the epithelium. Thus, confinement of free morphology exerts another control on tissue specialization and formation.
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Affiliation(s)
- David W Green
- Division in Anatomy and Developmental Biology, Department of Oral Biology, Oral Science Research Center, BK21 PLUS Project, Yonsei University College of Dentistry, Seoul, Korea.,Oral Biosciences, Faculty of Dentistry, The University of Hong Kong, Sai Ying Pun, Hong Kong, SAR
| | - Gregory S Watson
- School of Science and Engineering, University of the Sunshine Coast, Hervey Bay, QLD, 4655, Australia
| | - Jolanta A Watson
- School of Science and Engineering, University of the Sunshine Coast, Hervey Bay, QLD, 4655, Australia
| | - Jong-Min Lee
- Division in Anatomy and Developmental Biology, Department of Oral Biology, Oral Science Research Center, BK21 PLUS Project, Yonsei University College of Dentistry, Seoul, Korea
| | - Han-Sung Jung
- Division in Anatomy and Developmental Biology, Department of Oral Biology, Oral Science Research Center, BK21 PLUS Project, Yonsei University College of Dentistry, Seoul, Korea.,Oral Biosciences, Faculty of Dentistry, The University of Hong Kong, Sai Ying Pun, Hong Kong, SAR
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18
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Aw MS, Paniwnyk L. Overcoming T. gondii infection and intracellular protein nanocapsules as biomaterials for ultrasonically controlled drug release. Biomater Sci 2017; 5:1944-1961. [DOI: 10.1039/c7bm00425g] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
One of the pivotal matters of concern in intracellular drug delivery is the preparation of biomaterials containing drugs that are compatible with the host target.
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Affiliation(s)
- M. S. Aw
- School of Life Sciences
- Biomolecular and Sports Science
- Faculty of Health and Life Sciences
- Coventry University
- Coventry
| | - L. Paniwnyk
- School of Life Sciences
- Biomolecular and Sports Science
- Faculty of Health and Life Sciences
- Coventry University
- Coventry
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19
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Wing Moon Lam R, Abbah SA, Ming W, Naidu M, Ng F, Tao H, Goh Cho Hong J, Ting K, Hee Kit W. Polyelectrolyte Complex for Heparin Binding Domain Osteogenic Growth Factor Delivery. J Vis Exp 2016. [PMID: 27585207 DOI: 10.3791/54202] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022] Open
Abstract
During reconstructive bone surgeries, supraphysiological amounts of growth factors are empirically loaded onto scaffolds to promote successful bone fusion. Large doses of highly potent biological agents are required due to growth factor instability as a result of rapid enzymatic degradation as well as carrier inefficiencies in localizing sufficient amounts of growth factor at implant sites. Hence, strategies that prolong the stability of growth factors such as BMP-2/NELL-1, and control their release could actually lower their efficacious dose and thus reduce the need for larger doses during future bone regeneration surgeries. This in turn will reduce side effects and growth factor costs. Self-assembled PECs have been fabricated to provide better control of BMP-2/NELL-1 delivery via heparin binding and further potentiate growth factor bioactivity by enhancing in vivo stability. Here we illustrate the simplicity of PEC fabrication which aids in the delivery of a variety of growth factors during reconstructive bone surgeries.
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Affiliation(s)
- Raymond Wing Moon Lam
- Department of Orthopaedic Surgery, Yong Loo Lin School of Medicine, National University of Singapore;
| | - Sunny Akogwu Abbah
- Centre for Research in Medical Devices (CÚRAM), National University of Ireland Galway
| | - Wang Ming
- Department of Orthopaedic Surgery, Yong Loo Lin School of Medicine, National University of Singapore
| | - Mathanapriya Naidu
- Department of Orthopaedic Surgery, Yong Loo Lin School of Medicine, National University of Singapore
| | - Felly Ng
- Department of Orthopaedic Surgery, Yong Loo Lin School of Medicine, National University of Singapore
| | - Hu Tao
- Department of Orthopaedic Surgery, Yong Loo Lin School of Medicine, National University of Singapore
| | - James Goh Cho Hong
- Department of Bioengineering, Faculty of Engineering, National University of Singapore; Tissue Engineering Program, National University of Singapore
| | - Kang Ting
- Department of Orthopaedic Surgery and the Orthopaedic Hospital Research Center, University of California, Los Angeles
| | - Wong Hee Kit
- Department of Orthopaedic Surgery, Yong Loo Lin School of Medicine, National University of Singapore; Tissue Engineering Program, National University of Singapore
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20
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Heparin-Based Polyelectrolyte Complex Enhances the Therapeutic Efficacy of Bone Morphogenetic Protein-2 for Posterolateral Fusion in a Large Animal Model. Spine (Phila Pa 1976) 2016; 41:1199-1207. [PMID: 26953670 DOI: 10.1097/brs.0000000000001543] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
STUDY DESIGN The study was based on porcine posterolateral fusion model. OBJECTIVE The study aims to prove that polyelectrolyte complex (PEC) carrier could enhance the efficacy and safety profile of bone morphogenetic protein-2 (BMP-2). SUMMARY OF BACKGROUND DATA BMP-2 was introduced to enhance posterolateral fusion; however, extremely high doses of this molecule were often used which contributed to various complications. This was attributed to the poor modulation capacity of the traditional carrier absorbable collagen sponge (ACS). To reduce the efficacious dose of BMP-2 and its associated complications, heparin-based PEC was introduced. METHODS L3/L4 and L5/L6 two-level posterolateral spinal fusion was performed on six pigs using two doses of BMP-2 with PEC or ACS: (1) PEC with 800 μg BMP-2 (n = 2); (2) PEC with 400 μg BMP-2 (n = 2); (3) ACS with 800 μg BMP-2 (n = 1); (4) ACS with 400 μg of BMP-2 (n = 1). The construct was loaded into a rigid bioabsorbable cage for implantation. Fusion rate and quality were assessed 2 months after operation. RESULTS Manual palpation revealed successful fusion in all groups. Radiological fusion score of PEC groups was, however, higher than that of ACS groups. The newly formed bone in PEC groups appeared to be well integrated into the native bone with no overgrowth into the adjacent structure. On comparison, in ACS groups, large gaps were observed between the newly formed bone and the fusion bed with heterotopic ossification into the psoas muscle. The microarchitecture on the newly formed bone in PEC groups was superior to that in ACS groups, which was demonstrated by higher three-dimensional parameters. CONCLUSION The present study demonstrated that BMP-2 delivered by PEC induced successful posterolateral fusion in porcine model. The efficacy of BMP-2 was improved and bony overgrowth was reduced. The microarchitecture of BMP-2-induced bone tissue was also enhanced by PEC. LEVEL OF EVIDENCE N/A.
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21
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Salvi C, Lyu X, Peterson AM. Effect of Assembly pH on Polyelectrolyte Multilayer Surface Properties and BMP-2 Release. Biomacromolecules 2016; 17:1949-58. [PMID: 27186660 DOI: 10.1021/acs.biomac.5b01730] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The effect of solution pH during layer-by-layer assembly of polyelectrolyte multilayer (PEM) coatings on properties relevant to orthopedic implant success was investigated. Bone morphogenetic protein 2 (BMP-2), a potent osteoconductive growth factor, was adsorbed onto the surface of anodized titanium, and PEM coatings prepared from solutions of poly-l-histidine and poly(methacrylic acid) were built on top of the BMP-2. High levels of BMP-2 released over several months were achieved. Approximately 2 μg/cm(2) of BMP-2 were initially adsorbed on the anodized titanium and a pH-dependent release behavior was observed, with more stable coatings assembled at pH = 6-7. Three different diffusion regimes could be determined from the release profiles: an initial burst release, a sustained release regime, and a depletion regime. BMP-2 was shown to maintain bioactivity after release from a PEM and the presence of a PEM was shown to preserve BMP-2 structure. No visible change was observed in surface roughness as the assembly pH was varied, whereas the surface energy decreased for samples prepared at more basic pH. These results indicate that the initial BMP-2 layer affects PEM surface structure, but not the functional groups exposed on the surface.
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Affiliation(s)
- Claire Salvi
- Departments of †Chemical Engineering, ‡Mechanical Engineering, and §Biomedical Engineering, Worcester Polytechnic Institute , 100 Institute Road, Worcester, Massachusetts 01609, United States
| | - Xuejian Lyu
- Departments of †Chemical Engineering, ‡Mechanical Engineering, and §Biomedical Engineering, Worcester Polytechnic Institute , 100 Institute Road, Worcester, Massachusetts 01609, United States
| | - Amy M Peterson
- Departments of †Chemical Engineering, ‡Mechanical Engineering, and §Biomedical Engineering, Worcester Polytechnic Institute , 100 Institute Road, Worcester, Massachusetts 01609, United States
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22
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Liu Y, Deng LZ, Sun HP, Xu JY, Li YM, Xie X, Zhang LM, Deng FL. Sustained dual release of placental growth factor-2 and bone morphogenic protein-2 from heparin-based nanocomplexes for direct osteogenesis. Int J Nanomedicine 2016; 11:1147-58. [PMID: 27042064 PMCID: PMC4809329 DOI: 10.2147/ijn.s100156] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
OBJECTIVE To compare the direct osteogenic effect between placental growth factor-2 (PlGF-2) and bone morphogenic protein-2 (BMP-2). METHODS Three groups of PlGF-2/BMP-2-loaded heparin-N-(2-hydroxyl) propyl-3-trimethyl ammonium chitosan chloride (HTCC) nanocomplexes were prepared: those with 0.5 μg PlGF-2; with 1.0 μg BMP-2; and with 0.5 μg PlGF-2 combined with 1.0 μg BMP-2. The loading efficiencies and release profiles of these growth factors (GFs) in this nanocomplex system were quantified using enzyme-linked immunosorbent assay, their biological activities were evaluated using cell counting kit-8, cell morphology, and cell number counting assays, and their osteogenic activities were quantified using alkaline phosphatase and Alizarin Red S staining assays. RESULTS The loading efficiencies were more than 99% for the nanocomplexes loaded with just PlGF-2 and for those loaded with both PlGF-2 and BMP-2. For the nanocomplex loaded with just BMP-2, the loading efficiency was more than 97%. About 83%-84% of PlGF-2 and 89%-91% of BMP-2 were stably retained on the nanocomplexes for at least 21 days. In in vitro biological assays, PlGF-2 exhibited osteogenic effects comparable to those of BMP-2 despite its dose in the experiments being lower than that of BMP-2. Moreover, the results implied that heparin-based nanocomplexes encapsulating two GFs have enhanced potential in the enhancement of osteoblast function. CONCLUSION PlGF-2-loaded heparin-HTCC nanocomplexes may constitute a promising system for bone regeneration. Moreover, the dual delivery of PlGF-2 and BMP-2 appears to have greater potential in bone tissue regeneration than the delivery of either GFs alone.
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Affiliation(s)
- Yun Liu
- Department of Oral Implantology, Guangdong Provincial Key Laboratory of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, People's Republic of China
| | - Li-Zhi Deng
- PCFM Lab, Sun Yat-sen University, Guangzhou, People's Republic of China; GDHPPC Lab, Institute of Polymer Science, Department of Polymer and Materials Science, School of Chemistry and Chemical Engineering, Sun Yat-sen University, Guangzhou, People's Republic of China
| | - Hai-Peng Sun
- Department of Oral Implantology, Guangdong Provincial Key Laboratory of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, People's Republic of China
| | - Jia-Yun Xu
- Department of Oral Implantology, Guangdong Provincial Key Laboratory of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, People's Republic of China
| | - Yi-Ming Li
- Department of Oral Implantology, Guangdong Provincial Key Laboratory of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, People's Republic of China
| | - Xin Xie
- Department of Oral Implantology, Guangdong Provincial Key Laboratory of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, People's Republic of China
| | - Li-Ming Zhang
- PCFM Lab, Sun Yat-sen University, Guangzhou, People's Republic of China; GDHPPC Lab, Institute of Polymer Science, Department of Polymer and Materials Science, School of Chemistry and Chemical Engineering, Sun Yat-sen University, Guangzhou, People's Republic of China
| | - Fei-Long Deng
- Department of Oral Implantology, Guangdong Provincial Key Laboratory of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, People's Republic of China
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Hu T, Abbah SA, Toh SY, Wang M, Lam RWM, Naidu M, Bhakta G, Cool SM, Bhakoo K, Li J, Goh JCH, Wong HK. Bone marrow-derived mesenchymal stem cells assembled with low-dose BMP-2 in a three-dimensional hybrid construct enhances posterolateral spinal fusion in syngeneic rats. Spine J 2015; 15:2552-63. [PMID: 26342750 DOI: 10.1016/j.spinee.2015.08.063] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/18/2014] [Revised: 04/15/2015] [Accepted: 08/22/2015] [Indexed: 02/03/2023]
Abstract
BACKGROUND CONTEXT The combination of potent osteoinductive growth factor, functional osteoblastic cells, and osteoconductive materials to induce bone formation is a well-established concept in bone tissue engineering. However, supraphysiological dose of growth factor, such as recombinant human bone morphogenetic protein 2 (rhBMP-2), which is necessary in contemporary clinical application, have been reported to result in severe side effects. PURPOSE We hypothesize that the synergistic osteoinductive capacity of low-dose bone morphogenetic protein 2 (BMP-2) combined with undifferentiated bone marrow-derived stromal cells (BMSCs) is comparable to that of osteogenically differentiated BMSCs when used in a rodent model of posterolateral spinal fusion. STUDY DESIGN/SETTING A prospective study using a rodent model of posterolateral spinal fusion was carried out. PATIENT SAMPLE Thirty-six syngeneic Fischer rats comprised the patient sample. METHODS Six groups of implants were evaluated as follows (n=6): (1) 10 µg BMP-2 with undifferentiated BMSCs; (2) 10 µg BMP-2 with osteogenic-differentiated BMSCs; (3) 2.5 µg BMP-2 with undifferentiated BMSCs; (4) 2.5 µg BMP-2 with osteogenic-differentiated BMSCs; (5) 0.5 µg BMP-2 with undifferentiated BMSCs; and (6) 0.5 µg BMP-2 with osteogenic-differentiated BMSCs. Optimal in vitro osteogenic differentiation of BMSCs was determined by quantitative real-time polymerase chain reaction (qRT-PCR) gene analysis whereas in vivo bone formation capacity was evaluated by manual palpation, micro-computed tomography, and histology. RESULTS Rat BMSCs cultured in fibrin matrix that was loaded into the pores of medical-grade poly epsilon caprolactone tricalcium phosphate scaffolds differentiated toward osteogenic lineage by expressing osterix, runt-related transcription factor 2, and osteocalcium mRNA when supplemented with dexamethasone, ascorbic acid, and β-glycerophosphate. Whereas qRT-PCR revealed optimal increase in osteogenic genes expression after 7 days of in vitro culture, in vivo transplantation study showed that pre-differentiation of BMSCs before transplantation failed to promote posterolateral spinal fusion when co-delivered with low-dose BMP-2 (1/6 or 17% fusion rate). In contrast, combined delivery of undifferentiated BMSCs with low-dose BMP-2 (2.5 µg) demonstrated significantly higher fusion rate (4/6 or 67%) as well as significantly increased volume of new bone formation (p<.05). CONCLUSION In summary, this study supports the combination of undifferentiated BMSCs and low-dose rhBMP-2 for bone tissue engineering construct.
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Affiliation(s)
- Tao Hu
- Department of Orthopaedic Surgery, Yong Loo Lin School of Medicine, National University of Singapore, Level 11, NUHS Tower Block, 1E Kent Ridge Rd, 119228, Singapore
| | - Sunny Akogwu Abbah
- Department of Orthopaedic Surgery, Yong Loo Lin School of Medicine, National University of Singapore, Level 11, NUHS Tower Block, 1E Kent Ridge Rd, 119228, Singapore
| | - Soo Yein Toh
- Department of Orthopaedic Surgery, Yong Loo Lin School of Medicine, National University of Singapore, Level 11, NUHS Tower Block, 1E Kent Ridge Rd, 119228, Singapore
| | - Ming Wang
- Department of Orthopaedic Surgery, Yong Loo Lin School of Medicine, National University of Singapore, Level 11, NUHS Tower Block, 1E Kent Ridge Rd, 119228, Singapore
| | - Raymond Wing Moon Lam
- Department of Orthopaedic Surgery, Yong Loo Lin School of Medicine, National University of Singapore, Level 11, NUHS Tower Block, 1E Kent Ridge Rd, 119228, Singapore
| | - Mathanapriya Naidu
- Department of Orthopaedic Surgery, Yong Loo Lin School of Medicine, National University of Singapore, Level 11, NUHS Tower Block, 1E Kent Ridge Rd, 119228, Singapore
| | - Gajadhar Bhakta
- Institute of Medical Biology, Agency for Science, Technology and Research (A*STAR), 8A Biomedical Grove, #06-06 Immunos, 138648, Singapore
| | - Simon M Cool
- Department of Orthopaedic Surgery, Yong Loo Lin School of Medicine, National University of Singapore, Level 11, NUHS Tower Block, 1E Kent Ridge Rd, 119228, Singapore; Institute of Medical Biology, Agency for Science, Technology and Research (A*STAR), 8A Biomedical Grove, #06-06 Immunos, 138648, Singapore
| | - Kishore Bhakoo
- Department of Orthopaedic Surgery, Yong Loo Lin School of Medicine, National University of Singapore, Level 11, NUHS Tower Block, 1E Kent Ridge Rd, 119228, Singapore; Singapore Bioimaging Consortium (SBIC), Agency for Science, Technology and Research (A*STAR), 11 Biopolis Way, #02-02 Helios Building, 138667, Singapore
| | - Jun Li
- Department of Biomedical Engineering, Faculty of Engineering, National University of Singapore, Block EA, #03-12, 9 Engineering Drive 1, 117575, Singapore
| | - James Cho-Hong Goh
- Department of Orthopaedic Surgery, Yong Loo Lin School of Medicine, National University of Singapore, Level 11, NUHS Tower Block, 1E Kent Ridge Rd, 119228, Singapore; Department of Biomedical Engineering, Faculty of Engineering, National University of Singapore, Block EA, #03-12, 9 Engineering Drive 1, 117575, Singapore
| | - Hee-Kit Wong
- Department of Orthopaedic Surgery, Yong Loo Lin School of Medicine, National University of Singapore, Level 11, NUHS Tower Block, 1E Kent Ridge Rd, 119228, Singapore.
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Yadav P, Yadav H, Shah VG, Shah G, Dhaka G. Biomedical Biopolymers, their Origin and Evolution in Biomedical Sciences: A Systematic Review. J Clin Diagn Res 2015; 9:ZE21-5. [PMID: 26501034 DOI: 10.7860/jcdr/2015/13907.6565] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2015] [Accepted: 07/05/2015] [Indexed: 01/07/2023]
Abstract
Biopolymers provide a plethora of applications in the pharmaceutical and medical applications. A material that can be used for biomedical applications like wound healing, drug delivery and tissue engineering should possess certain properties like biocompatibility, biodegradation to non-toxic products, low antigenicity, high bio-activity, processability to complicated shapes with appropriate porosity, ability to support cell growth and proliferation and appropriate mechanical properties, as well as maintaining mechanical strength. This paper reviews biodegradable biopolymers focusing on their potential in biomedical applications. Biopolymers most commonly used and most abundantly available have been described with focus on the properties relevant to biomedical importance.
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Affiliation(s)
- Preeti Yadav
- Senior Lecturer, Department of Prosthodontics, Crown and Bridge and Implantology, NIMS Dental College , Jaipur, Rajasthan, India
| | - Harsh Yadav
- Private Practioner, Oral & Maxillofacial Surgery, Gurgaon, Haryana, India
| | - Veena Gowri Shah
- Reader, Department of Prosthodontics, Crown and Bridge and Implantology, NIMS Dental College , Jaipur, Rajasthan, India
| | - Gaurav Shah
- Reader, Department of Oral & Maxillofacial Surgery, NIMS Dental College , Jaipur, Rajasthan, India
| | - Gaurav Dhaka
- Private Practitioner, Meerut, Uttar Pradesh, India
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Polyelectrolyte Complex Carrier Enhances Therapeutic Efficiency and Safety Profile of Bone Morphogenetic Protein-2 in Porcine Lumbar Interbody Fusion Model. Spine (Phila Pa 1976) 2015; 40:964-73. [PMID: 25893351 DOI: 10.1097/brs.0000000000000935] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
STUDY DESIGN Porcine lumbar interbody fusion model. OBJECTIVE This study evaluates the effect of polyelectrolyte complex (PEC) carrier in enhancing the therapeutic efficiency and safety profile of bone morphogenetic protein-2 (BMP-2) in a large animal model. SUMMARY OF BACKGROUND DATA Extremely large amounts of BMP-2 are administered to achieve consistent spinal fusion, which has led to complications. Heparin-modified PEC carrying reduced BMP-2 doses of 0.5 μg was demonstrated to achieve consistent spinal fusion with reduction of complications in rodent model. The purpose of this study was to evaluate whether PEC could improve the therapeutic efficiency of BMP-2 in porcine model. METHODS Three-segment (L3-L6) anterior lumbar interbody fusions with instrumentation were performed on 6 pigs using 3 different doses of BMP-2, namely, (1) 50 μg, (2) 150 μg, and (3) 300 μg. The BMP-2 was delivered using heparin-modified alginate microbeads loaded into biodegradable cage. Fusion performance was evaluated after 3 months. RESULTS Manual palpation and micro-computed tomography showed consistent fusion in all experimental groups. Heterotopic bone formation beyond the cage implant area was more evident in group 2 and group 3 than in group 1. Similarly, superior bone microstructure was observed in the new bone with the lowered BMP-2 dose. Biomechanical evaluation revealed enhanced stiffness of the operated segments compared with nonoperated segments (P < 0.05). Mechanical stability was maintained despite dose reduction of BMP-2. Although the mineral apposition rate was higher in group 3, unsatisfactory bony microstructure with decreased trabecular number was observed in group 3 compared with group 1. CONCLUSION PEC carrying low doses of BMP-2 achieved consistent interbody fusion. We observed dose-related reduction in heterotopic ossification without compromising the stability of the fused segments. PEC carrier reduces the efficacious doses of BMP-2. This could enhance the safety profile of BMP-2 and reduce dose- and carrier-related complications. LEVEL OF EVIDENCE N/A.
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Novel Protamine-Based Polyelectrolyte Carrier Enhances Low-Dose rhBMP-2 in Posterolateral Spinal Fusion. Spine (Phila Pa 1976) 2015; 40:613-21. [PMID: 25705961 DOI: 10.1097/brs.0000000000000841] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
STUDY DESIGN A rodent posterolateral spinal fusion model. OBJECTIVE This study evaluated a protamine-based polyelectrolyte complex (PEC) developed to use heparin in enhancing the biological activity of low-dose recombinant human bone morphogenetic protein-2 (rhBMP-2) in spinal fusion. SUMMARY OF BACKGROUND DATA rhBMP-2 is commonly regarded as the most potent bone-inducing molecule. However, poor pharmacokinetics and short in vivo half-life means that large amounts of the bioactive growth factor are required for consistent clinical outcomes. This has been associated with a number of adverse tissue reactions including seroma and heterotopic ossification. Glycosaminoglycans including heparin are known to stabilize rhBMP-2 bioactivity. Previous studies with poly-L-lysine (PLL) and heparin-based PEC carriers amplified the therapeutic efficacy of low-dose BMP-2. However, questions remained on the eventual clinical applicability of relatively cytotoxic PLL. In the present study, a protamine-based PEC carrier was designed to further enhance the safety and efficacy of BMP-2 by delivering lower dose within the therapeutic window. METHODS A polyelectrolyte shell was deposited on the surface of alginate microbead templates using the polycation (protamine)/polyanion (heparin) layer-by-layer polyelectrolyte self-assembly protocol. rhBMP-2 was loaded onto the outermost layer via heparin affinity binding. Loading and release of rhBMP-2 were evaluated in vitro. The bone-inductive ability of 20-fold reduction of rhBMP-2 with the different carrier vehicle was evaluated using a posterolateral spinal fusion model in rats. RESULTS In vitro uptake and release analysis, protamine-based PEC showed higher uptake and significantly enhanced control release than PLL-based PEC (P < 0.05). In vivo implantation with protamine-based and PLL-based PEC showed better fusion performances than absorbable collagen sponge-delivered same dose of rhBMP-2, and negative control group through manual palpation, micro-computed tomography, and histological analyses. CONCLUSION Solid posterolateral spinal fusion was achieved with 20-fold reduction of rhBMP-2 when delivered using protamine-based PEC carrier in the rat posterolateral spinal fusion model. LEVEL OF EVIDENCE N/A.
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Sarkar SK, Lee BT. Hard tissue regeneration using bone substitutes: an update on innovations in materials. Korean J Intern Med 2015; 30:279-93. [PMID: 25995658 PMCID: PMC4438282 DOI: 10.3904/kjim.2015.30.3.279] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/21/2015] [Accepted: 03/05/2015] [Indexed: 12/15/2022] Open
Abstract
Bone is a unique organ composed of mineralized hard tissue, unlike any other body part. The unique manner in which bone can constantly undergo self-remodeling has created interesting clinical approaches to the healing of damaged bone. Healing of large bone defects is achieved using implant materials that gradually integrate with the body after healing is completed. Such strategies require a multidisciplinary approach by material scientists, biological scientists, and clinicians. Development of materials for bone healing and exploration of the interactions thereof with the body are active research areas. In this review, we explore ongoing developments in the creation of materials for regenerating hard tissues.
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Affiliation(s)
- Swapan Kumar Sarkar
- Institute of Tissue Regeneration, Soonchunhyang University College of Medicine, Cheonan, Korea
| | - Byong Taek Lee
- Institute of Tissue Regeneration, Soonchunhyang University College of Medicine, Cheonan, Korea
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Biomimetic approaches in bone tissue engineering: Integrating biological and physicomechanical strategies. Adv Drug Deliv Rev 2015; 84:1-29. [PMID: 25236302 DOI: 10.1016/j.addr.2014.09.005] [Citation(s) in RCA: 279] [Impact Index Per Article: 31.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2014] [Revised: 09/01/2014] [Accepted: 09/05/2014] [Indexed: 02/06/2023]
Abstract
The development of responsive biomaterials capable of demonstrating modulated function in response to dynamic physiological and mechanical changes in vivo remains an important challenge in bone tissue engineering. To achieve long-term repair and good clinical outcomes, biologically responsive approaches that focus on repair and reconstitution of tissue structure and function through drug release, receptor recognition, environmental responsiveness and tuned biodegradability are required. Traditional orthopedic materials lack biomimicry, and mismatches in tissue morphology, or chemical and mechanical properties ultimately accelerate device failure. Multiple stimuli have been proposed as principal contributors or mediators of cell activity and bone tissue formation, including physical (substrate topography, stiffness, shear stress and electrical forces) and biochemical factors (growth factors, genes or proteins). However, optimal solutions to bone regeneration remain elusive. This review will focus on biological and physicomechanical considerations currently being explored in bone tissue engineering.
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Hajiali H, Heredia-Guerrero JA, Liakos I, Athanassiou A, Mele E. Alginate Nanofibrous Mats with Adjustable Degradation Rate for Regenerative Medicine. Biomacromolecules 2015; 16:936-43. [PMID: 25658494 DOI: 10.1021/bm501834m] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Hadi Hajiali
- Smart
Materials, Nanophysics, Istituto Italiano di Tecnologia (IIT), via Morego 30, 16163 Genoa, Italy
- DIBRIS, University of Genoa, via Opera Pia 13, 16145, Genoa, Italy
| | - José A. Heredia-Guerrero
- Smart
Materials, Nanophysics, Istituto Italiano di Tecnologia (IIT), via Morego 30, 16163 Genoa, Italy
| | - Ioannis Liakos
- Smart
Materials, Nanophysics, Istituto Italiano di Tecnologia (IIT), via Morego 30, 16163 Genoa, Italy
| | - Athanassia Athanassiou
- Smart
Materials, Nanophysics, Istituto Italiano di Tecnologia (IIT), via Morego 30, 16163 Genoa, Italy
| | - Elisa Mele
- Smart
Materials, Nanophysics, Istituto Italiano di Tecnologia (IIT), via Morego 30, 16163 Genoa, Italy
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Nath SD, Abueva C, Kim B, Lee BT. Chitosan–hyaluronic acid polyelectrolyte complex scaffold crosslinked with genipin for immobilization and controlled release of BMP-2. Carbohydr Polym 2015; 115:160-9. [DOI: 10.1016/j.carbpol.2014.08.077] [Citation(s) in RCA: 114] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2014] [Revised: 08/14/2014] [Accepted: 08/17/2014] [Indexed: 01/25/2023]
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Le Cerf D, Pepin AS, Niang PM, Cristea M, Karakasyan-Dia C, Picton L. Formation of polyelectrolyte complexes with diethylaminoethyl dextran: Charge ratio and molar mass effect. Carbohydr Polym 2014; 113:217-24. [DOI: 10.1016/j.carbpol.2014.07.015] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2013] [Revised: 07/02/2014] [Accepted: 07/03/2014] [Indexed: 10/25/2022]
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He X, Liu Y, Yuan X, Lu L. Enhanced healing of rat calvarial defects with MSCs loaded on BMP-2 releasing chitosan/alginate/hydroxyapatite scaffolds. PLoS One 2014; 9:e104061. [PMID: 25084008 PMCID: PMC4118996 DOI: 10.1371/journal.pone.0104061] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2014] [Accepted: 07/08/2014] [Indexed: 02/05/2023] Open
Abstract
In this study, we designed a chitosan/alginate/hydroxyapatite scaffold as a carrier for recombinant BMP-2 (CAH/B2), and evaluated the release kinetics of BMP-2. We evaluated the effect of the CAH/B2 scaffold on the viability and differentiation of bone marrow mesenchymal stem cells (MSCs) by scanning electron microscopy, MTS, ALP assay, alizarin-red staining and qRT-PCR. Moreover, MSCs were seeded on scaffolds and used in a 8 mm rat calvarial defect model. New bone formation was assessed by radiology, hematoxylin and eosin staining 12 weeks postoperatively. We found the release kinetics of BMP-2 from the CAH/B2 scaffold were delayed compared with those from collagen gel, which is widely used for BMP-2 delivery. The BMP-2 released from the scaffold increased MSC differentiation and did not show any cytotoxicity. MSCs exhibited greater ALP activity as well as stronger calcium mineral deposition, and the bone-related markers Col1α, osteopontin, and osteocalcin were upregulated. Analysis of in vivo bone formation showed that the CAH/B2 scaffold induced more bone formation than other groups. This study demonstrates that CAH/B2 scaffolds might be useful for delivering osteogenic BMP-2 protein and present a promising bone regeneration strategy.
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Affiliation(s)
- Xiaoning He
- Department of Stomatology, the 4th Affiliated Hospital of China Medical University, Shenyang, Liaoning, China; Department of Oral Biology, The State University of New York at Buffalo, Buffalo, New York, United States of America
| | - Yang Liu
- Department of Stomatology, the 4th Affiliated Hospital of China Medical University, Shenyang, Liaoning, China
| | - Xue Yuan
- Department of Oral Biology, The State University of New York at Buffalo, Buffalo, New York, United States of America
| | - Li Lu
- Department of Oral and Maxillofacial Surgery, School of Stomatology, China Medical University, Shenyang, Liaoning, China
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Abbah SA, Lam WMR, Hu T, Goh J, Wong HK. Sequestration of rhBMP-2 into self-assembled polyelectrolyte complexes promotes anatomic localization of new bone in a porcine model of spinal reconstructive surgery. Tissue Eng Part A 2014; 20:1679-88. [PMID: 24354664 DOI: 10.1089/ten.tea.2013.0593] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
Efficient and therapeutically safe delivery of recombinant human bone morphogenetic protein 2 (rhBMP-2) continues to be a central issue in bone tissue engineering. Recent evidence indicates that layer-by-layer self-assembly of polyelectrolyte complexes (PECs) can be used to recreate synthetic matrix environments that would act as tuneable reservoirs for delicate biomolecules and cells. Although preliminary in vitro as well as small-animal in vivo studies support this premise, translation into clinically relevant bone defect volumes in larger animal models remains unreported. Here we explored the use of native heparin-based PEC, deposited on a hydrated alginate gel template, to load bioactive rhBMP-2 and to facilitate lumbar interbody spinal fusion in pigs. We observed that triple PEC deposits with the highest protein sequestration efficiency and immobilization capacity promoted higher volume of new bone formation when compared with single PEC with low sequestration efficiency and immobilization capacity. This also resulted in a significantly enhanced biomechanical stability of the fused spinal segment when compared with PEC carriers with relatively low protein sequestration and immobilization capacities (p<0.05). Most importantly, PEC carriers showed a more orderly pattern of new bone deposition and superior containment of bone tissue within implant site when compared to collagen sponge carriers. We conclude that this growth factor sequestration platform is effective in the healing of clinically relevant bone defect volume and could overcome some of the safety concerns and limitations currently associated with rhBMP-2 therapy such as excessive heterotopic ossification.
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Affiliation(s)
- Sunny-Akogwu Abbah
- 1 Department of Orthopaedic Surgery, Yong Loo Lin School of Medicine, National University of Singapore , Singapore, Singapore
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Yamaguchi T, Inoue N, Sah RL, Lee YP, Taborek AP, Williams GM, Moseley TA, Bae WC, Masuda K. Micro-computed tomography-based three-dimensional kinematic analysis during lateral bending for spinal fusion assessment in a rat posterolateral lumbar fusion model. Tissue Eng Part C Methods 2014; 20:578-87. [PMID: 24199634 DOI: 10.1089/ten.tec.2013.0439] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Rat posterolateral lumbar fusion (PLF) models have been used to assess the safety and effectiveness of new bone substitutes and osteoinductive growth factors using palpation, radiography, micro-computed tomography (μCT), and histology as standard methods to evaluate spinal fusion. Despite increased numbers of PLF studies involving alternative bone substitutes and growth factors, the quantitative assessment of treatment efficacy during spinal motion has been limited. The purpose of this study was to evaluate the effect of spinal fusion on lumbar spine segment stability during lateral bending using a μCT-based three-dimensional (3D) kinematic analysis in the rat PLF model. Fourteen athymic male rats underwent PLF surgery at L4/5 and received bone grafts harvested from the ilium and femurs of syngeneic rats (Isograft, n=7) or no graft (Sham, n=7). At 8 weeks after the PLF surgery, spinal fusion was assessed by manual palpation, plain radiography, μCT, and histology. To determine lumbar segmental motions at the operated level during lateral bending, 3D kinematic analysis was performed. The Isograft group, but not the Sham group, showed spinal fusion on manual palpation (6/7), solid fusion mass in radiographs (6/7), as well as bone bridging in μCT and histological images (5/7). Compared to the Sham group, the Isograft group revealed limited 3D lateral bending angular range of motion and lateral translation during lateral bending at the fused segment where disc height narrowing was observed. This μCT-based 3D kinematic analysis can provide a quantitative assessment of spinal fusion in a rat PLF model to complement current gold standard methods used for efficacy assessment of new therapeutic approaches.
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Affiliation(s)
- Tomonori Yamaguchi
- 1 Department of Orthopaedic Surgery, School of Medicine, University of California , San Diego, La Jolla, California
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Venkatesan J, Nithya R, Sudha PN, Kim SK. Role of alginate in bone tissue engineering. ADVANCES IN FOOD AND NUTRITION RESEARCH 2014; 73:45-57. [PMID: 25300542 DOI: 10.1016/b978-0-12-800268-1.00004-4] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Bone, a typical inorganic-organic biocomposite, is made of approximately 70 wt% inorganic components, mainly hydroxyapatite (HAp,Ca(10)(PO(4))(6)(OH)(2)), and 30 wt% of organic matrix, mainly collagen I. Human organ failure caused by defects, injuries, or other types of damage is one of the most devastating and costly problems in human health care. Recently, tissue engineering has emerged as a promising approach for bone repair and reconstruction. The ultimate goal of bone tissue engineering is the fabrication of a construct that matches the physical and biological properties of the natural bone tissue. Biopolymers have some distinct advantages such as their biodegradation rates and mechanical properties can be tailored to a certain extent for specific applications. Alginate, a natural polysaccharide, is readily processable for applicable three-dimensional scaffolding materials such as hydrogels, microspheres, microcapsules, sponges, foams, and fibers. Alginate can be easily modified via chemical and physical reactions to obtain derivatives having various structures, properties, functions, and applications. The purpose of this chapter is to review recent research on alginate in bone tissue engineering.
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Affiliation(s)
- Jayachandran Venkatesan
- Department of Marine-bio Convergence Science and Marine Bioprocess Research Center, Pukyong National University, Busan, South Korea.
| | - R Nithya
- Department of Chemistry, D.K.M. College for Women, Thiruvalluvar University, Vellore, Tamil Nadu, India
| | - Prasad N Sudha
- Department of Chemistry, D.K.M. College for Women, Thiruvalluvar University, Vellore, Tamil Nadu, India
| | - Se-Kwon Kim
- Department of Marine-bio Convergence Science and Marine Bioprocess Research Center, Pukyong National University, Busan, South Korea
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Alginate-Based Biomaterials for Regenerative Medicine Applications. MATERIALS 2013; 6:1285-1309. [PMID: 28809210 PMCID: PMC5452316 DOI: 10.3390/ma6041285] [Citation(s) in RCA: 708] [Impact Index Per Article: 64.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/31/2012] [Revised: 02/19/2013] [Accepted: 03/19/2013] [Indexed: 02/07/2023]
Abstract
Alginate is a natural polysaccharide exhibiting excellent biocompatibility and biodegradability, having many different applications in the field of biomedicine. Alginate is readily processable for applicable three-dimensional scaffolding materials such as hydrogels, microspheres, microcapsules, sponges, foams and fibers. Alginate-based biomaterials can be utilized as drug delivery systems and cell carriers for tissue engineering. Alginate can be easily modified via chemical and physical reactions to obtain derivatives having various structures, properties, functions and applications. Tuning the structure and properties such as biodegradability, mechanical strength, gelation property and cell affinity can be achieved through combination with other biomaterials, immobilization of specific ligands such as peptide and sugar molecules, and physical or chemical crosslinking. This review focuses on recent advances in the use of alginate and its derivatives in the field of biomedical applications, including wound healing, cartilage repair, bone regeneration and drug delivery, which have potential in tissue regeneration applications.
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Zhao Y, Lord MS, Stenzel MH. A polyion complex micelle with heparin for growth factor delivery and uptake into cells. J Mater Chem B 2013; 1:1635-1643. [DOI: 10.1039/c3tb00360d] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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Karfeld-Sulzer LS, Weber FE. Biomaterial development for oral and maxillofacial bone regeneration. J Korean Assoc Oral Maxillofac Surg 2012. [DOI: 10.5125/jkaoms.2012.38.5.264] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
Affiliation(s)
- Lindsay S. Karfeld-Sulzer
- Oral Biotechnology and Bioengineering, Department of Cranio-Maxillofacial and Oral Surgery, University Hospital Zurich, Zurich, Switzerland
| | - Franz E. Weber
- Oral Biotechnology and Bioengineering, Department of Cranio-Maxillofacial and Oral Surgery, University Hospital Zurich, Zurich, Switzerland
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