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Ben Ghedalia Peled N, Hoffman DK, Barsky L, Zer NS, Amar K, Rapaport H, Gheber LA, Zhang XHF, Vago R. Bone Endosteal Mimics Regulates Breast Cancer Development and Phenotype. Biomacromolecules 2024; 25:2338-2347. [PMID: 38499995 DOI: 10.1021/acs.biomac.3c01217] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/20/2024]
Abstract
Bone is a frequent site for metastatic development in various cancer types, including breast cancer, with a grim prognosis due to the distinct bone environment. Despite considerable advances, our understanding of the underlying processes leading to bone metastasis progression remains elusive. Here, we applied a bioactive three-dimensional (3D) model capable of mimicking the endosteal bone microenvironment. MDA-MB-231 and MCF7 breast cancer cells were cultured on the scaffolds, and their behaviors and the effects of the biomaterial on the cells were examined over time. We demonstrated that close interactions between the cells and the biomaterial affect their proliferation rates and the expression of c-Myc, cyclin D, and KI67, leading to cell cycle arrest. Moreover, invasion assays revealed increased invasiveness within this microenvironment. Our findings suggest a dual role for endosteal mimicking signals, influencing cell fate and potentially acting as a double-edged sword, shuttling between cell cycle arrest and more active, aggressive states.
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Affiliation(s)
- Noa Ben Ghedalia Peled
- Avram and Stella Goldstein-Goren Department of Biotechnology Engineering, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel
| | - Dane K Hoffman
- Lester and Sue Smith Breast Center, Baylor College of Medicine, Houston, Texas 77030, United States
- Graduate School of Biomedical Sciences Cancer and Cell Biology Graduate Program (CCB), Baylor College of Medicine, Houston, Texas 77030, United States
| | - Livnat Barsky
- Avram and Stella Goldstein-Goren Department of Biotechnology Engineering, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel
| | - Noy S Zer
- Avram and Stella Goldstein-Goren Department of Biotechnology Engineering, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel
| | - Katya Amar
- Avram and Stella Goldstein-Goren Department of Biotechnology Engineering, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel
| | - Hanna Rapaport
- Avram and Stella Goldstein-Goren Department of Biotechnology Engineering, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel
- Ilse Katz Institute for Nanoscale Science and Technology (IKI), Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel
| | - Levi A Gheber
- Avram and Stella Goldstein-Goren Department of Biotechnology Engineering, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel
| | - Xiang H-F Zhang
- Lester and Sue Smith Breast Center, Baylor College of Medicine, Houston, Texas 77030, United States
- Dan L. Duncan Cancer Center, Baylor College of Medicine, Houston, Texas 77030, United States
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, Texas 77030, United States
| | - Razi Vago
- Avram and Stella Goldstein-Goren Department of Biotechnology Engineering, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel
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Wnt Signaling in the Development of Bone Metastasis. Cells 2022; 11:cells11233934. [PMID: 36497192 PMCID: PMC9739050 DOI: 10.3390/cells11233934] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Revised: 11/24/2022] [Accepted: 12/01/2022] [Indexed: 12/12/2022] Open
Abstract
Wnt signaling occurs through evolutionarily conserved pathways that affect cellular proliferation and fate decisions during development and tissue maintenance. Alterations in these highly regulated pathways, however, play pivotal roles in various malignancies, promoting cancer initiation, growth and metastasis and the development of drug resistance. The ability of cancer cells to metastasize is the primary cause of cancer mortality. Bone is one of the most frequent sites of metastases that generally arise from breast, prostate, lung, melanoma or kidney cancer. Upon their arrival to the bone, cancer cells can enter a long-term dormancy period, from which they can be reactivated, but can rarely be cured. The activation of Wnt signaling during the bone metastasis process was found to enhance proliferation, induce the epithelial-to-mesenchymal transition, promote the modulation of the extracellular matrix, enhance angiogenesis and immune tolerance and metastasize and thrive in the bone. Due to the complexity of Wnt pathways and of the landscape of this mineralized tissue, Wnt function during metastatic progression within bone is not yet fully understood. Therefore, we believe that a better understanding of these pathways and their roles in the development of bone metastasis could improve our understanding of the disease and may constitute fertile ground for potential therapeutics.
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3
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Review old bone, new tricks. Clin Exp Metastasis 2022; 39:727-742. [PMID: 35907112 DOI: 10.1007/s10585-022-10176-5] [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: 01/17/2022] [Accepted: 06/20/2022] [Indexed: 11/03/2022]
Abstract
Despite the significant progress made over the past decade with combination of molecular profiling data and the development of new clinical strategies, our understanding of metastasis remains elusive. Bone metastasis is a complex process and a major cause of mortality in breast and prostate cancer patients, for which there is no effective treatment to-date. The current review summarizes the routes taken by the metastatic cells and the interactions between them and the bone microenvironment. We emphasize the role of the specified niches and cues that promote cellular adhesion, colonization, prolonged dormancy, and reactivation. Understanding these mechanisms will provide better insights for future studies and treatment strategies for bone metastatic conditions.
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Cruz M, Zanatta M, da Veiga M, Ciancaglini P, Ramos A. Lipid-mediated growth of SrCO3/CaCO3 hybrid films as bioactive coatings for Ti surfaces. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 99:762-769. [DOI: 10.1016/j.msec.2019.02.023] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2018] [Revised: 02/01/2019] [Accepted: 02/06/2019] [Indexed: 01/10/2023]
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Lin X, Hunziker EB, Liu T, Hu Q, Liu Y. Enhanced biocompatibility and improved osteogenesis of coralline hydroxyapatite modified by bone morphogenetic protein 2 incorporated into a biomimetic coating. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2018; 96:329-336. [PMID: 30606540 DOI: 10.1016/j.msec.2018.11.017] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2017] [Revised: 08/31/2018] [Accepted: 11/13/2018] [Indexed: 11/17/2022]
Abstract
OBJECTIVES (1) To determine whether the biocompatibility of coralline hydroxyapatite (CHA) granules could be improved by using an octacalcium phosphate (OCP) coating layer, and/or functionalized with bone morphogenetic protein 2 (BMP-2), and (2) to investigate if BMP-2 incorporated into this coating is able to enhance its osteoinductive efficiency, in comparison to its surface-adsorbed delivery mode. METHODS CHA granules (0.25 g per sample) bearing a coating-incorporated depot of BMP-2 (20 μg/sample) together with the controls (CHA bearing an adsorbed depot of BMP-2; CHA granules with an OCP coating without BMP-2; pure CHA granules) were implanted subcutaneously in rats (n = 6 animals per group). Five weeks later, the implants were retrieved for histomorphometric analysis to quantify the volume of newly generated bone, bone marrow, fibrous tissue and foreign body giant cells (FBGCs). The osteoinductive efficiency of BMP-2 and the rates of CHA degradation were also determined. RESULTS The group with an OCP coating-incorporated depot of BMP-2 showed the highest volume and quality or bone, and the highest osteoinductive efficacy. OCP coating was able to reduce inflammatory responses (improve biocompatibility), and also simple adsorption of BMP-2 to CHA achieved this. CONCLUSIONS The biocompatibility of CHA granules (reduction of inflammation) was significantly improved by coating with a layer of OCP. Pure surface adsorption of BMP-2 to CHA also reduced inflammation. Incorporation of BMP-2 into the OCP coatings was associated with the highest volume and quality of bone, and the highest biocompatibility degree of the CHA granules. CLINICAL SIGNIFICANCE Higher osteoinductivity and improved biocompatibility of CHA can be obtained when a layer of BMP-2 functionalized OCP is deposited on the surfaces of CHA granules.
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Affiliation(s)
- Xingnan Lin
- Department of Orthodontics, Nanjing Stomatological Hospital, Medical School of Nanjing University, 210008 Nanjing, China; Department of Oral Implantology and Prosthetic Dentistry, Academic Centre of Dentistry Amsterdam (ACTA), VU University and University of Amsterdam, 1081LA Amsterdam, the Netherlands.
| | - Ernst B Hunziker
- Departments of Osteoporosis and Orthopaedic Surgery, Inselspital (University Hospital), Bern, 3010 Bern, Switzerland.
| | - Tie Liu
- Department of Oral Implantology, Hospital/School of Stomatology, Zhejiang University, 310003 Hangzhou, Zhejiang, China
| | - Qingang Hu
- Department of Oral and Maxillofacial Surgery, Affiliated Stomatological Hospital of Medical School, Nanjing University, 210008 Nanjing, China.
| | - Yuelian Liu
- Department of Oral Implantology and Prosthetic Dentistry, Academic Centre of Dentistry Amsterdam (ACTA), VU University and University of Amsterdam, 1081LA Amsterdam, the Netherlands.
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Bioactive Compounds from Marine Organisms: Potential for Bone Growth and Healing. Mar Drugs 2018; 16:md16090340. [PMID: 30231464 PMCID: PMC6163760 DOI: 10.3390/md16090340] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2018] [Revised: 09/10/2018] [Accepted: 09/11/2018] [Indexed: 01/06/2023] Open
Abstract
Marine organisms represent a highly diverse reserve of bioactives which could aid in the treatment of a wide range of diseases, including various musculoskeletal conditions. Osteoporosis in particular would benefit from a novel and effective marine-based treatment, due to its large disease burden and the inefficiencies of current treatment options. Osteogenic bioactives have been isolated from many marine organisms, including nacre powder derived from molluscan shells and fucoidan—the sulphated polysaccharide commonly sourced from brown macroalgae. Such extracts and compounds are known to have a range of osteogenic effects, including stimulation of osteoblast activity and mineralisation, as well as suppression of osteoclast resorption. This review describes currently known soluble osteogenic extracts and compounds from marine invertebrates and algae, and assesses their preclinical potential.
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Macha IJ, Ben-Nissan B. Marine Skeletons: Towards Hard Tissue Repair and Regeneration. Mar Drugs 2018; 16:E225. [PMID: 30004435 PMCID: PMC6071272 DOI: 10.3390/md16070225] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2018] [Revised: 06/25/2018] [Accepted: 06/28/2018] [Indexed: 12/31/2022] Open
Abstract
Musculoskeletal disorders in the elderly have significantly increased due to the increase in an ageing population. The treatment of these diseases necessitates surgical procedures, including total joint replacements such as hip and knee joints. Over the years a number of treatment options have been specifically established which are either permanent or use temporary natural materials such as marine skeletons that possess unique architectural structure and chemical composition for the repair and regeneration of bone tissue. This review paper will give an overview of presently used materials and marine structures for hard tissue repair and regeneration, drugs of marine origin and other marine products which show potential for musculoskeletal treatment.
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Affiliation(s)
- Innocent J Macha
- Department of Mechanical and Industrial Engineering, University of Dar es Salaam, P.O. Box 35131, Dar es Salaam, Tanzania.
| | - Besim Ben-Nissan
- Advanced Tissue Regeneration & Drug Delivery Group, School of Life Sciences, University of Technology Sydney, P.O. Box 123, Broadway, NSW 2007, Australia.
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Barros AA, Aroso IM, Silva TH, Mano JF, Duarte ARC, Reis RL. In vitro
bioactivity studies of ceramic structures isolated from marine sponges. Biomed Mater 2016; 11:045004. [DOI: 10.1088/1748-6041/11/4/045004] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Abstract
For many decades, fundamental cancer research has relied on two-dimensional in vitro cell culture models. However, these provide a poor representation of the complex three-dimensional (3D) architecture of living tissues. The more recent 3D culture systems, which range from ridged scaffolds to semiliquid gels, resemble their natural counterparts more closely. The arrangement of the cells in 3D systems allows better cell-cell interaction and facilitates extracellular matrix secretion, with concomitant effects on gene and protein expression and cellular behavior. Many studies have reported differences between 3D and 2D systems as regards responses to therapeutic agents and pivotal cellular processes such as cell differentiation, morphology, and signaling pathways, demonstrating the importance of 3D culturing for various cancer cell lines.
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Rodríguez-Valencia C, López-Álvarez M, Stefanov S, Chiussi S, Serra J, González P. Biomineralization of marine-patterned C-scaffolds. BIOINSPIRED BIOMIMETIC AND NANOBIOMATERIALS 2014. [DOI: 10.1680/bbn.13.00029] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Patterned surfaces of marine-derived carbon scaffolds were subjected to a biomimetic approach to be covered with a calcium phosphate thin film. The process was based on Dulbecco’s phosphate-buffered saline solution and investigated in different periods of immersion (from hours to days). A complete physicochemical characterization was performed to demonstrate the optimal calcium/phosphorus ratio, thickness and adherence to the substrate of these biomimetic calcium phosphate coatings, which still retained the naturally derived patterning. A chemical mechanism to explain the coating formation has been proposed and documented, based mainly on the presence of carboxylic groups on the C-scaffold surface, what promoted the anchorage of calcium ions at the first stage and the later binding of phosphate groups to calcium ions. The biological response of MC3T3-E1 preosteoblasts on the calcium phosphate–coated scaffolds was investigated to demonstrate the non-cytotoxicity, adequate morphology and spreading of cells after 7 d of culture, being this proliferation aligned, promoted by the patterning of the scaffold.
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Affiliation(s)
- Cosme Rodríguez-Valencia
- PhD student, New Materials Group, Applied Physics Department, School of Industrial Engineering, Campus Lagoas-Marcosende, Institute of Biomedical Research of Vigo, University of Vigo, Vigo, Spain
| | - Miriam López-Álvarez
- Doctor, New Materials Group, Applied Physics Department, School of Industrial Engineering, Campus Lagoas-Marcosende, Institute of Biomedical Research of Vigo, University of Vigo, Vigo, Spain
| | - Stefan Stefanov
- PhD student, New Materials Group, Applied Physics Department, School of Industrial Engineering, Campus Lagoas-Marcosende, Institute of Biomedical Research of Vigo, University of Vigo, Vigo, Spain
| | - Stefano Chiussi
- Doctor, New Materials Group, Applied Physics Department, School of Industrial Engineering, Campus Lagoas-Marcosende, Institute of Biomedical Research of Vigo, University of Vigo, Vigo, Spain
| | - Julia Serra
- Doctor, New Materials Group, Applied Physics Department, School of Industrial Engineering, Campus Lagoas-Marcosende, Institute of Biomedical Research of Vigo, University of Vigo, Vigo, Spain
| | - Pío González
- Professor, New Materials Group, Applied Physics Department, School of Industrial Engineering, Campus Lagoas-Marcosende, Institute of Biomedical Research of Vigo, University of Vigo, Vigo, Spain
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11
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Evolving marine biomimetics for regenerative dentistry. Mar Drugs 2014; 12:2877-912. [PMID: 24828293 PMCID: PMC4052322 DOI: 10.3390/md12052877] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2014] [Revised: 04/14/2014] [Accepted: 04/16/2014] [Indexed: 12/16/2022] Open
Abstract
New products that help make human tissue and organ regeneration more effective are in high demand and include materials, structures and substrates that drive cell-to-tissue transformations, orchestrate anatomical assembly and tissue integration with biology. Marine organisms are exemplary bioresources that have extensive possibilities in supporting and facilitating development of human tissue substitutes. Such organisms represent a deep and diverse reserve of materials, substrates and structures that can facilitate tissue reconstruction within lab-based cultures. The reason is that they possess sophisticated structures, architectures and biomaterial designs that are still difficult to replicate using synthetic processes, so far. These products offer tantalizing pre-made options that are versatile, adaptable and have many functions for current tissue engineers seeking fresh solutions to the deficiencies in existing dental biomaterials, which lack the intrinsic elements of biofunctioning, structural and mechanical design to regenerate anatomically correct dental tissues both in the culture dish and in vivo.
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Dahl M, Jørgensen NR, Hørberg M, Pinholt EM. Carriers in mesenchymal stem cell osteoblast mineralization—State-of-the-art. J Craniomaxillofac Surg 2014; 42:41-7. [DOI: 10.1016/j.jcms.2013.01.047] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2012] [Revised: 01/28/2013] [Accepted: 01/29/2013] [Indexed: 12/21/2022] Open
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Ben-Nissan B, Green DW. Marine Structures as Templates for Biomaterials. SPRINGER SERIES IN BIOMATERIALS SCIENCE AND ENGINEERING 2014. [DOI: 10.1007/978-3-642-53980-0_13] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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14
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López-Álvarez M, Rodríguez-Valencia C, Serra J, González P. Bio-inspired Ceramics: Promising Scaffolds for Bone Tissue Engineering. ACTA ACUST UNITED AC 2013. [DOI: 10.1016/j.proeng.2013.05.093] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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15
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Vago R. Beyond the skeleton: Cnidarian biomaterials as bioactive extracellular microenvironments for tissue engineering. Organogenesis 2012; 4:18-22. [PMID: 19279710 DOI: 10.4161/org.5843] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2008] [Accepted: 03/06/2008] [Indexed: 11/19/2022] Open
Affiliation(s)
- Razi Vago
- Department of Biotechnology Engineering; Ben-Gurion University of the Negev; Beer Sheva, Israel
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Kolk A, Handschel J, Drescher W, Rothamel D, Kloss F, Blessmann M, Heiland M, Wolff KD, Smeets R. Current trends and future perspectives of bone substitute materials - from space holders to innovative biomaterials. J Craniomaxillofac Surg 2012; 40:706-18. [PMID: 22297272 DOI: 10.1016/j.jcms.2012.01.002] [Citation(s) in RCA: 276] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2011] [Revised: 01/03/2012] [Accepted: 01/03/2012] [Indexed: 01/07/2023] Open
Abstract
An autologous bone graft is still the ideal material for the repair of craniofacial defects, but its availability is limited and harvesting can be associated with complications. Bone replacement materials as an alternative have a long history of success. With increasing technological advances the spectrum of grafting materials has broadened to allografts, xenografts, and synthetic materials, providing material specific advantages. A large number of bone-graft substitutes are available including allograft bone preparations such as demineralized bone matrix and calcium-based materials. More and more replacement materials consist of one or more components: an osteoconductive matrix, which supports the ingrowth of new bone; and osteoinductive proteins, which sustain mitogenesis of undifferentiated cells; and osteogenic cells (osteoblasts or osteoblast precursors), which are capable of forming bone in the proper environment. All substitutes can either replace autologous bone or expand an existing amount of autologous bone graft. Because an understanding of the properties of each material enables individual treatment concepts this review presents an overview of the principles of bone replacement, the types of graft materials available, and considers future perspectives. Bone substitutes are undergoing a change from a simple replacement material to an individually created composite biomaterial with osteoinductive properties to enable enhanced defect bridging.
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Affiliation(s)
- Andreas Kolk
- Department of Oral and Maxillofacial Surgery, Technische Universität München, Klinikum rechts der Isar, Ismaninger Str. 22, 81675 Munich, Germany.
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18
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Designs from the deep: Marine organisms for bone tissue engineering. Biotechnol Adv 2011; 29:610-7. [DOI: 10.1016/j.biotechadv.2011.04.003] [Citation(s) in RCA: 62] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2011] [Accepted: 04/12/2011] [Indexed: 12/21/2022]
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López-Álvarez M, Pereiro I, Serra J, de Carlos A, González P. Osteoblast-like cell response to macro- and micro-patterned carbon scaffolds obtained from the sea rush
Juncus maritimus. Biomed Mater 2011; 6:045012. [DOI: 10.1088/1748-6041/6/4/045012] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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20
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Liu Y, Jiang T, Zhou Y, Zhang Z, Wang Z, Tong H, Shen X, Wang Y. Evaluation of the attachment, proliferation, and differentiation of osteoblast on a calcium carbonate coating on titanium surface. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2011. [DOI: 10.1016/j.msec.2011.03.003] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Kretlow JD, Spicer PP, Jansen JA, Vacanti CA, Kasper FK, Mikos AG. Uncultured marrow mononuclear cells delivered within fibrin glue hydrogels to porous scaffolds enhance bone regeneration within critical-sized rat cranial defects. Tissue Eng Part A 2010; 16:3555-68. [PMID: 20715884 DOI: 10.1089/ten.tea.2010.0471] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
For bone tissue engineering, the benefits of incorporating mesenchymal stem cells (MSCs) into porous scaffolds are well established. There is, however, little consensus on the effects of or need for MSC handling ex vivo. Culture and expansion of MSCs adds length and cost, and likely increases risk associated with treatment. We evaluated the effect of using uncultured bone marrow mononuclear cells (bmMNCs) encapsulated within fibrin glue hydrogels and seeded into porous scaffolds to regenerate bone over 12 weeks in an 8-mm-diameter, critical-sized rat cranial defect. A full factorial experimental design was used to evaluate bone formation within model poly(L-lactic acid) and corraline hydroxyapatite scaffolds with or without platelet-rich plasma (PRP) and bmMNCs. Mechanical push-out testing, microcomputed tomographical analyses, and histology were performed. PRP showed no benefit for bone formation. Cell-laden poly(L-lactic acid) scaffolds without PRP required significantly greater force to displace from surrounding tissues than control (cell-free) scaffolds, but no differences were observed during push-out testing of coral scaffolds. For bone volume formation as analyzed by microcomputed tomography, significant positive overall effects were observed with bmMNC incorporation. These data suggest that bmMNCs may provide therapeutic advantages in bone tissue engineering applications without the need for culture, expansion, and purification.
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Affiliation(s)
- James D Kretlow
- Department of Bioengineering, Rice University, Houston, Texas, USA
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DiCarlo BB, Hu JC, Gross T, Vago R, Athanasiou KA. Biomaterial effects in articular cartilage tissue engineering using polyglycolic acid, a novel marine origin biomaterial, IGF-I, and TGF-beta 1. Proc Inst Mech Eng H 2009; 223:63-73. [PMID: 19239068 DOI: 10.1243/09544119jeim424] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Bovine articular chondrocytes were seeded on either polyglycolic acid (PGA) non-woven mesh scaffolds or a biomatrix from the species Porites lutea (POR). These constructs were cultured for 6 weeks in the presence of insulin-like growth factor (IGF)-I (10 ng/ml or 100 ng/ml) or transforming growth factor (TGF)-beta 1 (5 ng/ml or 30 ng/ml) to determine the in-vitro articular cartilage regeneration capacity of each. Histology, deoxyribonucleic acid content, collagen I and II (immunohistochemistry and enzyme-linked immunosorbent assay), and glycosaminoglycan (GAG) contents were measured at 0 weeks, 2 weeks, and 6 weeks to assess the characteristics of chondrogenesis. Both scaffolds supported the maintenance of the chondrocytic phenotype, as evidenced by the predominance of collagen II and the presence of rounded chondrocytes embedded in lacunae. Regardless of growth factor treatment, cells cultured on PGA scaffolds produced more collagen type II than those cultured on POR. Conversely, by 6 weeks, cells cultured on POR scaffolds produced more GAG than those cultured on PGA scaffolds, again regardless of the growth factor used. Across the two groups, 100 ng/ml of IGF-I had the greatest overall effect in GAG content. This work indicates that PGA and the POR scaffolds are both effective growth matrices for articular cartilage, with each scaffold exhibiting different yet desirable profiles of articular cartilage growth.
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Affiliation(s)
- B B DiCarlo
- Department of Bioengineering, Rice University, Houston, TX, USA
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Jeger R, Lichtenfeld Y, Peretz H, Shany B, Vago R, Baranes D. Visualization of the ultrastructural interface of cells with the outer and inner-surface of coral skeletons. JOURNAL OF ELECTRON MICROSCOPY 2009; 58:47-53. [PMID: 19218486 DOI: 10.1093/jmicro/dfp005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Crystalline, porous biomaterials, such as marine invertebrate skeletons, have been widely used for functional reconstruction of human tissues like bone and dental implants. Since in such an abrasive microenvironment adequate cell-material interactions are crucial for a successful treatment, it is of great importance to improve the means to examine these interactions. We developed a method that reveals the ultrastructure of the interface between coral skeletons and cultured neural cells to a higher quality than do traditional methods as it does not include damaging procedures like decalcification or sectioning non-decalcified skeletons. It is rather based on generating two electron opacity distinct Araldite masks, of the skeleton and its surrounding, by polymerizing them to different durations. The contrast created at the border of the two masks outlined the fine and fragile crystals of the coral skeleton's outer and inner surfaces and their contact sites with the cells. The skeleton's internal structure contains a mesh of narrow (few microns wide) and large channel-shaped gaps interrupted by irregular-shaped crystalline material. Neural cells grew on the skeleton surface by stretching between crystal tips, with occasional rearrangements of cytoskeletal fibers located near the anchorage focal adherence points. Cell processes infiltrated the skeleton interior by stretching between inter-surface crystals and by adjusting their volume to the space of the conduits they grew into. The technique advances the study of coral biology and of neural cells-hard biomaterial interaction; it can be applied to other biomaterials and cell types and open new ways for studying tissue development and engineering.
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Affiliation(s)
- Rina Jeger
- Department of Life Sciences, Ben-Gurion University of the Negev, Beer Sheva 84105, Israel
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Gross-Aviv T, Vago R. The role of aragonite matrix surface chemistry on the chondrogenic differentiation of mesenchymal stem cells. Biomaterials 2009; 30:770-9. [DOI: 10.1016/j.biomaterials.2008.10.026] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2008] [Accepted: 10/16/2008] [Indexed: 01/14/2023]
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Peretz H, Blinder P, Baranes D, Vago R. Aragonite crystalline matrix as an instructive microenvironment for neural development. J Tissue Eng Regen Med 2008; 2:463-71. [DOI: 10.1002/term.118] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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A study of crystalline biomaterials for articular cartilage bioengineering. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2008. [DOI: 10.1016/j.msec.2008.03.006] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Abstract
Many important lessons can be learnt from the study of biological form and the functional design of organisms as design criteria for the development of tissue engineering products. This merging of biomimetics and regenerative medicine is termed 'tissue bionics'. Clinically useful analogues can be generated by appropriating, modifying and mimicking structures from a diversity of natural biomatrices ranging from marine plankton shells to sea urchin spines. Methods in biomimetic materials chemistry can also be used to fabricate tissue engineering scaffolds with added functional utility that promise human tissues fit for the clinic.
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Affiliation(s)
- David W Green
- Bone and Joint Research Group, Developmental Origins of Health and Disease, General Hospital, University of Southampton, UK.
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Vago R. Cnidarians biomineral in tissue engineering: a review. MARINE BIOTECHNOLOGY (NEW YORK, N.Y.) 2008; 10:343-349. [PMID: 18481145 DOI: 10.1007/s10126-008-9103-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2007] [Revised: 02/18/2008] [Accepted: 04/01/2008] [Indexed: 05/26/2023]
Abstract
Biomineralization is the process by which organisms precipitate minerals. Crystals formed in this way are exploited by the organisms for a variety of purposes, including mechanical support and protection of soft tissue. Skeletal precipitation, via millions of years of evolution, has produced a wide variety of architectural configurations and material properties. It is exactly these properties that now attract the attention of researchers searching for new materials for a variety of biomedical applications.
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Affiliation(s)
- Razi Vago
- Department of Biotechnology Engineering, Ben-Gurion University of the Negev, Beer Sheva, Israel.
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Peretz H, Talpalar AE, Vago R, Baranes D. Superior survival and durability of neurons and astrocytes on 3-dimensional aragonite biomatrices. ACTA ACUST UNITED AC 2007; 13:461-72. [PMID: 17319796 DOI: 10.1089/ten.2005.0522] [Citation(s) in RCA: 50] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Current needs of central nervous system therapy urge for the identification of scaffolds supporting the generation and long-term maintenance of healthy and functional neuronal tissue. We compared for the first time the viability of hippocampal neurons and astrocytes grown on conventional 2-dimensional (2D) conditions with that of cells grown on an aragonite bioactive 3-dimensional (3D) scaffold prepared from coralline exoskeleton. Cultures in 3D showed significantly lower mortality rate and higher neurons/astrocytes ratio than 2D cultures. Moreover, whereas cell survival in 2D was arrested in the absence of the supporting substrates poly-D-lysine and laminin, these substrates had negligible effect on the 3D cultures. Furthermore, aragonite matrices supported cell survival and growth under conditions of calcium and nutrients deprivation, whereas in 2D such treatments led to death of all neurons and of almost all astrocytes. To show that the aragonite matrices are permissive for neural cells also in vivo, aragonite matrices having no substrate coating grafted into postnatal rat cortex were invaded by neurons growing on the surface and in multilayer structures resembling those seen in the 3D culture in vitro. Hence, culture of neurons and astrocytes on 3D aragonite coralline matrices is a novel mean for production of stable neuronal tissue, with significant implication to the field of neuronal tissue restoration.
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Affiliation(s)
- Hagit Peretz
- Department of Life Sciences, Ben-Gurion University of the Negev, Beer Sheva, Israel
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Baranes D, Cove J, Blinder P, Shany B, Peretz H, Vago R. Interconnected Network of Ganglion-Like Neural Cell Spheres Formed on Hydrozoan Skeleton. ACTA ACUST UNITED AC 2007; 13:473-82. [PMID: 17518598 DOI: 10.1089/ten.2006.0052] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Identifying scaffolds supporting in vitro reconstruction of active neuronal tissues in their 3-dimensional (3D) conformation is a major challenge in tissue engineering. We have previously shown that aragonite coral exoskeletons support the development of neuronal tissue from hippocampal neurons and astrocytes. Here we show for the first time that the porous aragonite skeleton obtained from bio-fabricated hydrozoan Millepora dichotoma supports the spontaneous organization of dissociated hippocampal cells into highly interconnected 3D ganglion-like tissue formations. The ganglion-like cell spheres expanded hundreds of microns across and included hundreds to thousands of astrocytes and mature neurons, most of them having only cell-cell and no cell-surface interactions. The spheres were linked to the surface directly or through a neck of cells and were interconnected through thick bundles of dendrites, varicosity-bearing axons, and astrocytic processes. Thus, M. dichotoma exoskeleton is a novel scaffold with the unprecedented ability to support a highly ordered organization of neuronal tissue. This unexpected organization opens new opportunities for neuronal tissue regeneration, because the spheres resemble in vivo nervous tissue having high volume of cells associated primarily through cell-cell rather than cell-matrix interactions.
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Affiliation(s)
- D Baranes
- Department of Life Sciences, Ben-Gurion University of the Negev, Beer Sheva, Israel.
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