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Baines DK, Platania V, Tavernaraki NN, Parati M, Wright K, Radecka I, Chatzinikolaidou M, Douglas TEL. The Enrichment of Whey Protein Isolate Hydrogels with Poly-γ-Glutamic Acid Promotes the Proliferation and Osteogenic Differentiation of Preosteoblasts. Gels 2023; 10:18. [PMID: 38247741 PMCID: PMC10815088 DOI: 10.3390/gels10010018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2023] [Revised: 12/15/2023] [Accepted: 12/19/2023] [Indexed: 01/23/2024] Open
Abstract
Osseous disease accounts for over half of chronic pathologies, but there is a limited supply of autografts, the gold standard; hence, there is a demand for new synthetic biomaterials. Herein, we present the use of a promising, new dairy-derived biomaterial: whey protein isolate (WPI) in the form of hydrogels, modified with the addition of different concentrations of the biotechnologically produced protein-like polymeric substance poly-γ-glutamic acid (γ-PGA) as a potential scaffold for tissue regeneration. Raman spectroscopic analysis demonstrated the successful creation of WPI-γ-PGA hydrogels. A cytotoxicity assessment using preosteoblastic cells demonstrated that the hydrogels were noncytotoxic and supported cell proliferation from day 3 to 14. All γ-PGA-containing scaffold compositions strongly promoted cell attachment and the formation of dense interconnected cell layers. Cell viability was significantly increased on γ-PGA-containing scaffolds on day 14 compared to WPI control scaffolds. Significantly, the cells showed markers of osteogenic differentiation; they synthesised increasing amounts of collagen over time, and cells showed significantly enhanced alkaline phosphatase activity at day 7 and higher levels of calcium for matrix mineralization at days 14 and 21 on the γ-PGA-containing scaffolds. These results demonstrated the potential of WPI-γ-PGA hydrogels as scaffolds for bone regeneration.
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Affiliation(s)
- Daniel K. Baines
- Faculty of Science and Technology, School of Engineering, Lancaster University, Gillow Avenue, Lancaster LA1 4YW, UK;
- Faculty of Health and medicine, Division of Biomedical and Life Sciences, Lancaster University, Gillow Avenue, Lancaster LA1 4YW, UK;
| | - Varvara Platania
- Department of Materials Science and Technology, University of Crete, GR-70013 Heraklion, Greece; (V.P.); (N.N.T.); (M.C.)
| | - Nikoleta N. Tavernaraki
- Department of Materials Science and Technology, University of Crete, GR-70013 Heraklion, Greece; (V.P.); (N.N.T.); (M.C.)
| | - Mattia Parati
- Faculty of Science and Engineering, School of Life Sciences, University of Wolverhampton, Wolverhampton WV1 1LY, UK; (M.P.); (I.R.)
| | - Karen Wright
- Faculty of Health and medicine, Division of Biomedical and Life Sciences, Lancaster University, Gillow Avenue, Lancaster LA1 4YW, UK;
| | - Iza Radecka
- Faculty of Science and Engineering, School of Life Sciences, University of Wolverhampton, Wolverhampton WV1 1LY, UK; (M.P.); (I.R.)
| | - Maria Chatzinikolaidou
- Department of Materials Science and Technology, University of Crete, GR-70013 Heraklion, Greece; (V.P.); (N.N.T.); (M.C.)
- Institute of Electronic Structure and Laser, Foundation for Research and Technology Hellas, GR-70013 Heraklion, Greece
| | - Timothy E. L. Douglas
- Faculty of Science and Technology, School of Engineering, Lancaster University, Gillow Avenue, Lancaster LA1 4YW, UK;
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Giannotti L, Di Chiara Stanca B, Spedicato F, Nitti P, Damiano F, Demitri C, Calabriso N, Carluccio MA, Palermo A, Siculella L, Stanca E. Progress in Regenerative Medicine: Exploring Autologous Platelet Concentrates and Their Clinical Applications. Genes (Basel) 2023; 14:1669. [PMID: 37761809 PMCID: PMC10530962 DOI: 10.3390/genes14091669] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Revised: 08/17/2023] [Accepted: 08/22/2023] [Indexed: 09/29/2023] Open
Abstract
The goal of regenerative medicine is to achieve tissue regeneration. In the past, commonly used techniques included autologous or allogeneic transplantation and stem cell therapy, which have limitations, such as a lack of donor sites in the case of autologous transplantation and the invasiveness of stem cell harvesting. In recent years, research has, therefore, focused on new and less invasive strategies to achieve tissue regeneration. A step forward in this direction has been made with the development of autologous platelet concentrates (APCs), which are derived from the patient's own blood. They can be classified into three generations: platelet-rich plasma (PRP), platelet-rich fibrin (PRF), and concentrated growth factors (CGFs). These APCs have different structural characteristics, depending on the distinctive preparation method, and contain platelets, leukocytes, and multiple growth factors, including those most involved in regenerative processes. The purpose of this review is to clarify the most used techniques in the field of regenerative medicine in recent years, comparing the different types of APCs and analyzing the preparation protocols, the composition of the growth factors, the level of characterization achieved, and their clinical applications to date.
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Affiliation(s)
- Laura Giannotti
- Department of Biological and Environmental Sciences and Technologies, University of Salento, 73100 Lecce, Italy; (L.G.); (B.D.C.S.); (F.S.); (F.D.); (E.S.)
| | - Benedetta Di Chiara Stanca
- Department of Biological and Environmental Sciences and Technologies, University of Salento, 73100 Lecce, Italy; (L.G.); (B.D.C.S.); (F.S.); (F.D.); (E.S.)
| | - Francesco Spedicato
- Department of Biological and Environmental Sciences and Technologies, University of Salento, 73100 Lecce, Italy; (L.G.); (B.D.C.S.); (F.S.); (F.D.); (E.S.)
| | - Paola Nitti
- Department of Engineering for Innovation, University of Salento, 73100 Lecce, Italy; (P.N.); (C.D.)
| | - Fabrizio Damiano
- Department of Biological and Environmental Sciences and Technologies, University of Salento, 73100 Lecce, Italy; (L.G.); (B.D.C.S.); (F.S.); (F.D.); (E.S.)
| | - Christian Demitri
- Department of Engineering for Innovation, University of Salento, 73100 Lecce, Italy; (P.N.); (C.D.)
| | - Nadia Calabriso
- National Research Council (CNR), Institute of Clinical Physiology (IFC), 73100 Lecce, Italy; (N.C.); (M.A.C.)
| | - Maria Annunziata Carluccio
- National Research Council (CNR), Institute of Clinical Physiology (IFC), 73100 Lecce, Italy; (N.C.); (M.A.C.)
| | - Andrea Palermo
- Implant Dentistry College of Medicine and Dentistry, Birmingham B4 6BN, UK;
| | - Luisa Siculella
- Department of Biological and Environmental Sciences and Technologies, University of Salento, 73100 Lecce, Italy; (L.G.); (B.D.C.S.); (F.S.); (F.D.); (E.S.)
| | - Eleonora Stanca
- Department of Biological and Environmental Sciences and Technologies, University of Salento, 73100 Lecce, Italy; (L.G.); (B.D.C.S.); (F.S.); (F.D.); (E.S.)
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Solomakha O, Stepanova M, Gofman I, Nashchekina Y, Rabchinskii M, Nashchekin A, Lavrentieva A, Korzhikova-Vlakh E. Composites Based on Poly(ε-caprolactone) and Graphene Oxide Modified with Oligo/Poly(Glutamic Acid) as Biomaterials with Osteoconductive Properties. Polymers (Basel) 2023; 15:2714. [PMID: 37376360 DOI: 10.3390/polym15122714] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Revised: 06/07/2023] [Accepted: 06/15/2023] [Indexed: 06/29/2023] Open
Abstract
The development of new biodegradable biomaterials with osteoconductive properties for bone tissue regeneration is one of the urgent tasks of modern medicine. In this study, we proposed the pathway for graphene oxide (GO) modification with oligo/poly(glutamic acid) (oligo/poly(Glu)) possessing osteoconductive properties. The modification was confirmed by a number of methods such as Fourier-transform infrared spectroscopy, quantitative amino acid HPLC analysis, thermogravimetric analysis, scanning electron microscopy, and dynamic and electrophoretic light scattering. Modified GO was used as a filler for poly(ε-caprolactone) (PCL) in the fabrication of composite films. The mechanical properties of the biocomposites were compared with those obtained for the PCL/GO composites. An 18-27% increase in elastic modulus was found for all composites containing modified GO. No significant cytotoxicity of the GO and its derivatives in human osteosarcoma cells (MG-63) was revealed. Moreover, the developed composites stimulated the proliferation of human mesenchymal stem cells (hMSCs) adhered to the surface of the films in comparison with unfilled PCL material. The osteoconductive properties of the PCL-based composites filled with GO modified with oligo/poly(Glu) were confirmed via alkaline phosphatase assay as well as calcein and alizarin red S staining after osteogenic differentiation of hMSC in vitro.
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Affiliation(s)
- Olga Solomakha
- Institute of Macromolecular Compounds, Russian Academy of Sciences, St. Petersburg 199004, Russia
| | - Mariia Stepanova
- Institute of Macromolecular Compounds, Russian Academy of Sciences, St. Petersburg 199004, Russia
| | - Iosif Gofman
- Institute of Macromolecular Compounds, Russian Academy of Sciences, St. Petersburg 199004, Russia
| | - Yulia Nashchekina
- Institute of Cytology, Russian Academy of Sciences, St. Petersburg 194064, Russia
| | - Maxim Rabchinskii
- Ioffe Institute, Politekhnicheskaya St. 26, St. Petersburg 194021, Russia
| | - Alexey Nashchekin
- Ioffe Institute, Politekhnicheskaya St. 26, St. Petersburg 194021, Russia
| | - Antonina Lavrentieva
- Institute of Technical Chemistry, Leibniz University of Hannover, 30167 Hannover, Germany
| | - Evgenia Korzhikova-Vlakh
- Institute of Macromolecular Compounds, Russian Academy of Sciences, St. Petersburg 199004, Russia
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4
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Pulat G, Muganlı Z, Ercan UK, Karaman O. Effect of antimicrobial peptide conjugated surgical sutures on multiple drug-resistant microorganisms. J Biomater Appl 2023; 37:1182-1194. [PMID: 36510770 DOI: 10.1177/08853282221145872] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Surgical site infections are commonly encountered as a risk factor in clinics that increase the morbidity of a patient after a surgical operation. Surgical sutures are one of the leading factor for the formation of surgical site infections that induce bacterial colonization by their broad surface area. Current strategies to overcome with surgical site infections consist utilization of antibiotic agent coatings such as triclosan. However, the significant increase in antibiotic resistance majorly decreases their efficiency against recalcitrant pathogens such as; Pseudomonas aeruginosa and Staphylococcus aureus. Therefore, the development of a multi drug-resistant antimicrobial suture without any cytotoxic effect to combat surgical site infections is vital. Antimicrobial peptides are the first defense line which has a broad range of spectrum against Gram-positive, and Gram-negative bacteria and even viruses. In addition, antimicrobial peptides have a rapid killing mechanism which is enhanced by membrane disruption and inhibition of functional proteins in pathogens without the development of antimicrobial resistance. In the scope of the current study, the antimicrobial effect of antimicrobial peptide conjugated poly (glycolic acid-co-caprolactone) (PGCL) sutures were investigated against P. aeruginosa and methicillin-resistant S. aureus (MRSA) strains by using antimicrobial peptide sequences of KRFRIRVRV-NH2, RWRWRWRW-NH2 and their dual combination (1:1). In addition, in vitro wound scratch assays were performed to evaluate the effect of antimicrobial peptide conjugated sutures on keratinocyte cell lines. Our results indicated that antimicrobial peptide modified sutures could be a potential novel medical device to overcome surgical site infections by the superior acceleration of wound healing.
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Affiliation(s)
- Günnur Pulat
- Tissue Engineering and Regenerative Medicine Laboratory, Department of Biomedical Engineering, 226844İzmir Katip Çelebi University, İzmir, Turkey
| | - Zülal Muganlı
- Tissue Engineering and Regenerative Medicine Laboratory, Department of Biomedical Engineering, 226844İzmir Katip Çelebi University, İzmir, Turkey
| | - Utku Kürşat Ercan
- Plasma Medicine Laboratory, Department of Biomedical Engineering, 226844İzmir Katip Çelebi University, İzmir, Turkey
| | - Ozan Karaman
- Tissue Engineering and Regenerative Medicine Laboratory, Department of Biomedical Engineering, 226844İzmir Katip Çelebi University, İzmir, Turkey
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Averianov IV, Stepanova MA, Gofman IV, Lavrentieva A, Korzhikov-vlakh VA, Korzhikova-vlakh EG. Osteoconductive biocompatible 3D-printed composites of poly-d,l-lactide filled with nanocrystalline cellulose modified by poly(glutamic acid). Mendeleev Communications 2022; 32:810-812. [DOI: 10.1016/j.mencom.2022.11.034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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6
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Averianov I, Stepanova M, Solomakha O, Gofman I, Serdobintsev M, Blum N, Kaftuirev A, Baulin I, Nashchekina J, Lavrentieva A, Vinogradova T, Korzhikov-Vlakh V, Korzhikova-Vlakh E. 3D-Printed composite scaffolds based on poly(ε-caprolactone) filled with poly(glutamic acid)-modified cellulose nanocrystals for improved bone tissue regeneration. J Biomed Mater Res B Appl Biomater 2022; 110:2422-2437. [PMID: 35618683 DOI: 10.1002/jbm.b.35100] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Revised: 05/06/2022] [Accepted: 05/09/2022] [Indexed: 12/19/2022]
Abstract
The manufacturing of modern scaffolds with customized geometry and personalization has become possible due to the three-dimensional (3D) printing technique. A novel type of 3D-printed scaffolds for bone tissue regeneration based on poly(ε-caprolactone) (PCL) filled with nanocrystalline cellulose modified by poly(glutamic acid) (PGlu-NCC) has been proposed in this study. The 3D printing set-ups were optimized in order to obtain homogeneous porous scaffolds. Both polymer composites and manufactured 3D scaffolds have demonstrated mechanical properties suitable for a human trabecular bone. Compression moduli were in the range of 334-396 MPa for non-porous PCL and PCL-based composites, and 101-122 MPa for porous scaffolds made of the same materials. In vitro mineralization study with the use of human mesenchymal stem cells (hMSCs) revealed the larger Ca deposits on the surface of PCL/PGlu-NCC composite scaffolds. Implantation of the developed 3D scaffolds into femur of the rabbits was carried out to observe close and delayed effects. The histological analysis showed the lowest content of immune cells and thin fibrous capsule, revealing low toxicity of the PCL/PGlu-NCC scaffolds seeded with rabbit MSCs (rMSCs) to the surrounding tissues. The most pronounced result on the generation of new bone tissue after implantation of PCL/PGlu-NCC + rMSCs scaffolds was detected by both microcomputed tomography and histological analysis. Around 33% and 55% of bone coverage were detected for composite 3D scaffolds with adhered rMSCs after 1 and 3 months of implantation, respectively. This achievement can be a result of synergistic effect of PGlu, which attracts calcium ions, and stem cells with osteogenic potential.
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Affiliation(s)
- Ilia Averianov
- Institute of Macromolecular Compounds, Russian Academy of Sciences, St. Petersburg, Russia
| | - Mariia Stepanova
- Institute of Macromolecular Compounds, Russian Academy of Sciences, St. Petersburg, Russia
| | - Olga Solomakha
- Institute of Macromolecular Compounds, Russian Academy of Sciences, St. Petersburg, Russia
| | - Iosif Gofman
- Institute of Macromolecular Compounds, Russian Academy of Sciences, St. Petersburg, Russia
| | - Mikhail Serdobintsev
- Saint-Petersburg State Research Institute of Phthisiopulmonology of the Ministry of Healthcare of the Russian Federation, St. Petersburg, Russia
| | - Natalya Blum
- Interregional Laboratory Center, St. Petersburg, Russia
| | - Aleksander Kaftuirev
- Saint-Petersburg State Research Institute of Phthisiopulmonology of the Ministry of Healthcare of the Russian Federation, St. Petersburg, Russia
| | - Ivan Baulin
- Saint-Petersburg State Research Institute of Phthisiopulmonology of the Ministry of Healthcare of the Russian Federation, St. Petersburg, Russia
| | - Juliya Nashchekina
- Institute of Cytology, Russian Academy of Sciences, St. Petersburg, Russia
| | - Antonina Lavrentieva
- Institute of Technical Chemistry, Leibniz University of Hannover, Hannover, Germany
| | - Tatiana Vinogradova
- Saint-Petersburg State Research Institute of Phthisiopulmonology of the Ministry of Healthcare of the Russian Federation, St. Petersburg, Russia
| | - Viktor Korzhikov-Vlakh
- Institute of Macromolecular Compounds, Russian Academy of Sciences, St. Petersburg, Russia.,Institute of Chemistry, Saint-Petersburg State University, St. Petersburg, Russia
| | - Evgenia Korzhikova-Vlakh
- Institute of Macromolecular Compounds, Russian Academy of Sciences, St. Petersburg, Russia.,Institute of Chemistry, Saint-Petersburg State University, St. Petersburg, Russia
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7
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Jabbari E, Sepahvandi A. Decellularized Articular Cartilage Microgels as Microcarriers for Expansion of Mesenchymal Stem Cells. Gels 2022; 8:gels8030148. [PMID: 35323261 PMCID: PMC8949257 DOI: 10.3390/gels8030148] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2022] [Revised: 02/17/2022] [Accepted: 02/23/2022] [Indexed: 11/16/2022] Open
Abstract
Conventional microcarriers used for expansion of human mesenchymal stem cells (hMSCs) require detachment and separation of the cells from the carrier prior to use in clinical applications for regeneration of articular cartilage, and the carrier can cause undesirable phenotypic changes in the expanded cells. This work describes a novel approach to expand hMSCs on biomimetic carriers based on adult or fetal decellularized bovine articular cartilage that supports tissue regeneration without the need to detach the expanded cells from the carrier. In this approach, the fetal or adult bovine articular cartilage was minced, decellularized, freeze-dried, ground, and sieved to produce articular cartilage microgels (CMGs) in a specified size range. Next, the hMSCs were expanded on CMGs in a bioreactor in basal medium to generate hMSC-loaded CMG microgels (CMG-MSCs). Then, the CMG-MSCs were suspended in sodium alginate, injected in a mold, crosslinked with calcium chloride, and incubated in chondrogenic medium as an injectable cellular construct for regeneration of articular cartilage. The expression of chondrogenic markers and compressive moduli of the injectable CMG-MSCs/alginate hydrogels incubated in chondrogenic medium were higher compared to the hMSCs directly encapsulated in alginate hydrogels.
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Camacho P, Behre A, Fainor M, Seims KB, Chow LW. Spatial organization of biochemical cues in 3D-printed scaffolds to guide osteochondral tissue engineering. Biomater Sci 2021; 9:6813-6829. [PMID: 34473149 DOI: 10.1039/d1bm00859e] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Functional repair of osteochondral (OC) tissue remains challenging because the transition from bone to cartilage presents gradients in biochemical and physical properties necessary for joint function. Osteochondral regeneration requires strategies that restore the spatial composition and organization found in the native tissue. Several biomaterial approaches have been developed to guide chondrogenic and osteogenic differentiation of human mesenchymal stem cells (hMSCs). These strategies can be combined with 3D printing, which has emerged as a useful tool to produce tunable, continuous scaffolds functionalized with bioactive cues. However, functionalization often includes one or more post-fabrication processing steps, which can lead to unwanted side effects and often produce biomaterials with homogeneously distributed chemistries. To address these challenges, surface functionalization can be achieved in a single step by solvent-cast 3D printing peptide-functionalized polymers. Peptide-poly(caprolactone) (PCL) conjugates were synthesized bearing hyaluronic acid (HA)-binding (HAbind-PCL) or mineralizing (E3-PCL) peptides, which have been shown to promote hMSC chondrogenesis or osteogenesis, respectively. This 3D printing strategy enables unprecedented control of surface peptide presentation and spatial organization within a continuous construct. Scaffolds presenting both cartilage-promoting and bone-promoting peptides had a synergistic effect that enhanced hMSC chondrogenic and osteogenic differentiation in the absence of differentiation factors compared to scaffolds without peptides or only one peptide. Furthermore, multi-peptide organization significantly influenced hMSC response. Scaffolds presenting HAbind and E3 peptides in discrete opposing zones promoted hMSC osteogenic behavior. In contrast, presenting both peptides homogeneously throughout the scaffolds drove hMSC differentiation towards a mixed population of articular and hypertrophic chondrocytes. These significant results indicated that hMSC behavior was driven by dual-peptide presentation and organization. The downstream potential of this platform is the ability to fabricate biomaterials with spatially controlled biochemical cues to guide functional tissue regeneration without the need for differentiation factors.
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Affiliation(s)
- Paula Camacho
- Department of Bioengineering, Lehigh University, Bethlehem, PA, USA
| | - Anne Behre
- Department of Bioengineering, Lehigh University, Bethlehem, PA, USA
| | - Matthew Fainor
- Integrated Degree in Engineering, Arts, and Sciences Program, Lehigh University, Bethlehem, PA, USA
| | - Kelly B Seims
- Department of Materials Science and Engineering, Lehigh University, Bethlehem, PA, USA.
| | - Lesley W Chow
- Department of Bioengineering, Lehigh University, Bethlehem, PA, USA.,Department of Materials Science and Engineering, Lehigh University, Bethlehem, PA, USA.
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Stanca E, Calabriso N, Giannotti L, Nitti P, Damiano F, Stanca BDC, Carluccio MA, De Benedetto GE, Demitri C, Palermo A, Ferrante F, Siculella L, Rochira A. Analysis of CGF Biomolecules, Structure and Cell Population: Characterization of the Stemness Features of CGF Cells and Osteogenic Potential. Int J Mol Sci 2021; 22:8867. [PMID: 34445573 DOI: 10.3390/ijms22168867] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Revised: 08/12/2021] [Accepted: 08/15/2021] [Indexed: 01/08/2023] Open
Abstract
Concentrated Growth Factors (CGF) represent new autologous (blood-derived biomaterial), attracting growing interest in the field of regenerative medicine. In this study, the chemical, structural, and biological characterization of CGF was carried out. CGF molecular characterization was performed by GC/MS to quantify small metabolites and by ELISA to measure growth factors and matrix metalloproteinases (MMPs) release; structural CGF characterization was carried out by SEM analysis and immunohistochemistry; CGF has been cultured, and its primary cells were isolated for the identification of their surface markers by flow cytometry, Western blot, and real-time PCR; finally, the osteogenic differentiation of CGF primary cells was evaluated through matrix mineralization by alizarin red staining and through mRNA quantification of osteogenic differentiation markers by real-time PCR. We found that CGF has a complex inner structure capable of influencing the release of growth factors, metabolites, and cells. These cells, which could regulate the production and release of the CGF growth factors, show stem features and are able to differentiate into osteoblasts producing a mineralized matrix. These data, taken together, highlight interesting new perspectives for the use of CGF in regenerative medicine.
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Stepanova M, Solomakha O, Rabchinskii M, Averianov I, Gofman I, Nashchekina Y, Antonov G, Smirnov A, Ber B, Nashchekin A, Korzhikova-Vlakh E. Aminated Graphene-Graft-Oligo(Glutamic Acid) /Poly(ε-Caprolactone) Composites: Preparation, Characterization and Biological Evaluation. Polymers (Basel) 2021; 13:2628. [PMID: 34451168 PMCID: PMC8401938 DOI: 10.3390/polym13162628] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Revised: 08/03/2021] [Accepted: 08/04/2021] [Indexed: 12/15/2022] Open
Abstract
Biodegradable and biocompatible composites are of great interest as biomedical materials for various regeneration processes such as the regeneration of bones, cartilage and soft tissues. Modification of the filler surface can improve its compatibility with the polymer matrix, and, as a result, the characteristics and properties of composite materials. This work is devoted to the synthesis and modification of aminated graphene with oligomers of glutamic acid and their use for the preparation of composite materials based on poly(ε-caprolactone). Ring-opening polymerization of N-carboxyanhydride of glutamic acid γ-benzyl ester was used to graft oligomers of glutamic acid from the surface of aminated graphene. The success of the modification was confirmed by Fourier-transform infrared and X-ray photoelectron spectroscopy as well as thermogravimetric analysis. In addition, the dispersions of neat and modified aminated graphene were analyzed by dynamic and electrophoretic light scattering to monitor changes in the characteristics due to modification. The poly(ε-caprolactone) films filled with neat and modified aminated graphene were manufactured and carefully characterized for their mechanical and biological properties. Grafting of glutamic acid oligomers from the surface of aminated graphene improved the distribution of the filler in the polymer matrix that, in turn, positively affected the mechanical properties of composite materials in comparison to ones containing the unmodified filler. Moreover, the modification improved the biocompatibility of the filler with human MG-63 osteoblast-like cells.
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Affiliation(s)
- Mariia Stepanova
- Institute of Macromolecular Compounds, Russian Academy of Sciences, 199004 St. Petersburg, Russia
| | - Olga Solomakha
- Institute of Macromolecular Compounds, Russian Academy of Sciences, 199004 St. Petersburg, Russia
| | - Maxim Rabchinskii
- Ioffe Institute, Politekhnicheskaya st. 26, 194021 St. Petersburg, Russia
| | - Ilia Averianov
- Institute of Macromolecular Compounds, Russian Academy of Sciences, 199004 St. Petersburg, Russia
| | - Iosif Gofman
- Institute of Macromolecular Compounds, Russian Academy of Sciences, 199004 St. Petersburg, Russia
| | - Yuliya Nashchekina
- Institute of Cytology, Russian Academy of Sciences, 194064 St. Petersburg, Russia
| | - Grigorii Antonov
- Ioffe Institute, Politekhnicheskaya st. 26, 194021 St. Petersburg, Russia
| | - Aleksey Smirnov
- Ioffe Institute, Politekhnicheskaya st. 26, 194021 St. Petersburg, Russia
| | - Boris Ber
- Ioffe Institute, Politekhnicheskaya st. 26, 194021 St. Petersburg, Russia
| | - Aleksey Nashchekin
- Ioffe Institute, Politekhnicheskaya st. 26, 194021 St. Petersburg, Russia
| | - Evgenia Korzhikova-Vlakh
- Institute of Macromolecular Compounds, Russian Academy of Sciences, 199004 St. Petersburg, Russia
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11
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Camacho P, Fainor M, Seims KB, Tolbert JW, Chow LW. Fabricating spatially functionalized 3D-printed scaffolds for osteochondral tissue engineering. J Biol Methods 2021; 8:e146. [PMID: 33889653 PMCID: PMC8054918 DOI: 10.14440/jbm.2021.353] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2020] [Revised: 01/30/2020] [Accepted: 02/01/2021] [Indexed: 02/06/2023] Open
Abstract
Three-dimensional (3D) printing of biodegradable polymers has rapidly become a popular approach to create scaffolds for tissue engineering. This technique enables fabrication of complex architectures and layer-by-layer spatial control of multiple components with high resolution. The resulting scaffolds can also present distinct chemical groups or bioactive cues on the surface to guide cell behavior. However, surface functionalization often includes one or more post-fabrication processing steps, which typically produce biomaterials with homogeneously distributed chemistries that fail to mimic the biochemical organization found in native tissues. As an alternative, our laboratory developed a novel method that combines solvent-cast 3D printing with peptide-polymer conjugates to spatially present multiple biochemical cues in a single scaffold without requiring post-fabrication modification. Here, we describe a detailed, stepwise protocol to fabricate peptide-functionalized scaffolds and characterize their physical architecture and biochemical spatial organization. We used these 3D-printed scaffolds to direct human mesenchymal stem cell differentiation and osteochondral tissue formation by controlling the spatial presentation of cartilage-promoting and bone-promoting peptides. This protocol also describes how to seed scaffolds and evaluate matrix deposition driven by peptide organization.
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Affiliation(s)
- Paula Camacho
- Department of Bioengineering, Lehigh University, Bethlehem, PA 18015, USA
| | - Matthew Fainor
- Integrated Degree in Engineering, Arts and Sciences Program, Lehigh University, Bethlehem, PA 18015, USA
| | - Kelly B Seims
- Department of Materials Science and Engineering, Lehigh University, Bethlehem, PA 18015, USA
| | - John W Tolbert
- Department of Materials Science and Engineering, Lehigh University, Bethlehem, PA 18015, USA
| | - Lesley W Chow
- Department of Bioengineering, Lehigh University, Bethlehem, PA 18015, USA.,Department of Materials Science and Engineering, Lehigh University, Bethlehem, PA 18015, USA
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12
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Bucci R, Vaghi F, Erba E, Romanelli A, Gelmi ML, Clerici F. Peptide grafting strategies before and after electrospinning of nanofibers. Acta Biomater 2021; 122:82-100. [PMID: 33326882 DOI: 10.1016/j.actbio.2020.11.051] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Revised: 11/14/2020] [Accepted: 11/30/2020] [Indexed: 01/06/2023]
Abstract
Nanofiber films produced by electrospinning currently provide a promising platform for different applications. Although nonfunctionalized nanofiber films from natural or synthetic polymers are extensively used, electrospun materials combined with peptides are gaining more interest. In fact, the selection of specific peptides improves the performance of the material for biological applications and mainly for tissue engineering, mostly by maintaining similar mechanical properties with respect to the simple polymer. The main drawback in using peptides blended with a polymer is the quick release of the peptides. To avoid this problem, covalent linking of the peptide is more beneficial. Here, we reviewed synthetic protocols that enable covalent grafting of peptides to polymers before or after the electrospinning procedures to obtain more robust electrospun materials. Applications and the performance of the new material compared to that of the starting polymer are discussed.
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13
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Abstract
Antimicrobial peptides (AMPs) are considered as novel potential alternatives to antibiotics against increasing number of multi drug resistant (MDR) pathogens. Although AMPs have shown strong antimicrobial activity against gram-negative or gram-positive microorganisms, AMP conjugated biomaterials that are effective against MDR microorganisms are yet to be developed. Herein, the potential use of (RWRWRWRW)-NH2 (AMP-1) and KRFRIRVRV-NH2 (AMP-2) peptide conjugated electrospun polylactic-co-glycolic-acid (PLGA) nanofibers (NFs) fabricated and their antimicrobial effect by themselves and in their dual combination (1:1) were evaluated on P. aeruginosa and methicillin-resistant S. aureus (MRSA). Those AMP conjugated NFs did not inhibit proliferation of keratinocytes. These results suggest that AMP conjugated NF, which has multiple biological activities, would be a promising candidate as a wound dressing material.
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Affiliation(s)
- Günnur Onak
- Tissue Engineering and Regenerative Medicine Laboratory, Department of Biomedical Engineering, İzmir Katip Çelebi University, İzmir 35620, Turkey
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14
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Onak G, Gökmen O, Yaralı ZB, Karaman O. Enhanced osteogenesis of human mesenchymal stem cells by self-assembled peptide hydrogel functionalized with glutamic acid templated peptides. J Tissue Eng Regen Med 2020; 14:1236-1249. [PMID: 32615018 DOI: 10.1002/term.3095] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Revised: 06/27/2020] [Accepted: 06/29/2020] [Indexed: 12/22/2022]
Abstract
Self-assembling peptide (SAP) hydrogel has been shown to be an excellent biological material for three-dimensional cell culture and stimulatie cell migration and differentiation into the scaffold, as well as for repairing bone tissue defects. Herein, we designed one of the SAP scaffolds KLD (KLDLKLDLKLDL) through direct coupling to short bioactive motif O1 (EEGGC) and O2 (EEEEE) of which bioactivity on osteogenic differentiation was previously demonstrated and self-assembled in different concentrations (0.5%, 1%, and 2%). Our aim was to enhance osteogenesis and biomineralization of injectable SAP hydrogels with controlled mechanical properties so that the peptide hydrogel also becomes capable of being injected to bone defects. The molecular integration of the nanofibrous peptide scaffolds was observed using atomic force microscopy (AFM) and scanning electron microscopy (SEM). The rheological properties and degradation profile of SAP hydrogels were evaluated to ensure stability of SAPs. Compared with pure KLD scaffold, we found that these designed bioactive peptide scaffolds significantly promoted hMSCs proliferation depicted by biochemical analysis of alkaline phosphatase (ALP) activity, total calcium deposition. Moreover, key osteogenic markers of ALP activity, collagen type I (COL-1), osteopontin (OP), and osteocalcin (OCN) expression levels determined by real-time polymerase chain reaction (PCR) and immunofluorescence analysis were also significantly increased with the addition of glutamic acid residues to KLD. We demonstrated that the designed SAP scaffolds promoted the proliferation and osteogenic differentiation of hMSCs. Our results suggest that these designed bioactive peptide scaffolds may be useful for promoting bone tissue regeneration.
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Affiliation(s)
- Günnur Onak
- Tissue Engineering and Regenerative Medicine Laboratory, Department of Biomedical Engineering, İzmir Katip Çelebi University, İzmir, Turkey
| | - Oğuzhan Gökmen
- Tissue Engineering and Regenerative Medicine Laboratory, Department of Biomedical Engineering, İzmir Katip Çelebi University, İzmir, Turkey
| | - Ziyşan Buse Yaralı
- Tissue Engineering and Regenerative Medicine Laboratory, Department of Biomedical Engineering, İzmir Katip Çelebi University, İzmir, Turkey
| | - Ozan Karaman
- Tissue Engineering and Regenerative Medicine Laboratory, Department of Biomedical Engineering, İzmir Katip Çelebi University, İzmir, Turkey.,Bonegraft Biomaterials Co., Ege University Technopolis, İzmir, Turkey
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15
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Golda-Cepa M, Riedlová K, Kulig W, Cwiklik L, Kotarba A. Functionalization of the Parylene C Surface Enhances the Nucleation of Calcium Phosphate: Combined Experimental and Molecular Dynamics Simulations Approach. ACS Appl Mater Interfaces 2020; 12:12426-12435. [PMID: 32098467 PMCID: PMC7497617 DOI: 10.1021/acsami.9b20877] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/16/2019] [Accepted: 02/26/2020] [Indexed: 06/10/2023]
Abstract
Interactions at the solid-body fluid interfaces play a vital role in bone tissue formation at the implant surface. In this study, fully atomistic molecular dynamics (MD) simulations were performed to investigate interactions between the physiological components of body fluids (Ca2+, HPO42-, H2PO4-, Na+, Cl-, and H2O) and functionalized parylene C surface. In comparison to the native parylene C (-Cl surface groups), the introduction of -OH, -CHO, and -COOH surface groups significantly enhances the interactions between body fluid ions and the polymeric surface. The experimentally observed formation of calcium phosphate nanocrystals is discussed in terms of MD simulations of the calcium phosphate clustering. Surface functional groups promote the clustering of calcium and phosphate ions in the following order: -OH > -CHO > -Cl (parent parylene C) ≈ -COO-. This promoting role of surface functional groups is explained as stimulating the number of Ca2+ and HPO42- surface contacts as well as ion chemisorption. The molecular mechanism of calcium phosphate cluster formation at the functionalized parylene C surface is proposed.
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Affiliation(s)
- Monika Golda-Cepa
- Faculty
of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Krakow, Poland
| | - Kamila Riedlová
- J.
Heyrovský Institute of Physical Chemistry, Czech Academy of Sciences, Dolejškova 3, 18223 Prague, Czech Republic
- Faculty
of Science, Department of Physical and Macromolecular Chemistry, Charles University in Prague, Hlavova 2030, 12840 Prague 2, Czech Republic
| | - Waldemar Kulig
- Department
of Physics, University of Helsinki, P.O. Box 64, FI-00014 Helsinki, Finland
| | - Lukasz Cwiklik
- J.
Heyrovský Institute of Physical Chemistry, Czech Academy of Sciences, Dolejškova 3, 18223 Prague, Czech Republic
| | - Andrzej Kotarba
- Faculty
of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Krakow, Poland
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16
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Küçük D, Savran L, Ercan UK, Yarali ZB, Karaman O, Kantarci A, Sağlam M, Köseoğlu S. Evaluation of efficacy of non-thermal atmospheric pressure plasma in treatment of periodontitis: a randomized controlled clinical trial. Clin Oral Investig 2020; 24:3133-3145. [PMID: 31897708 DOI: 10.1007/s00784-019-03187-2] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2019] [Accepted: 12/23/2019] [Indexed: 01/28/2023]
Abstract
OBJECTIVES In this clinical study, we aim to evaluate the effectiveness of non-thermal atmospheric pressure plasma (NAPP), which is a novel procedure used in periodontal pocket decontamination adjunctive to non-surgical periodontal treatment (NSPT). METHODS The study included 25 systemically healthy periodontitis patients. In the split-mouth design, NAPP application into the pockets, in addition to NSPT, was performed. Clinical periodontal data, gingival crevicular fluid, and subgingival plaque samples of patients were taken before and during the first and third months of treatment. Biochemical assays were conducted using enzyme-linked immunosorbent assay. Analysis of bacteria was performed with polymerase chain reaction method. RESULTS There was more clinical attachment level (CAL) gain in the 3rd month in the test group (deep pockets: 3.90 mm, pockets ≥ 5 mm: 2.72 mm) compared to the control group (deep pockets: 3.40 mm, pockets ≥ 5 mm: 2.58 mm) (p < 0.05), but no significant difference between groups in CAL. Clinical periodontal parameters improved in both study groups (p < 0.05). However, the gingival index (GI) and the bleeding on probing (BOP) rate decreased more in the test group (GI: 0.55, BOP: 9.48%, and GI: 0.38, BOP: 8.46% in the 1st and 3rd months, respectively) compared to the control group (GI: 0.68, BOP: 13.43%, and GI: 0.52, BOP: 14.58%) (p < 0.05). In addition, there was no significant difference in probing depth and biochemical markers between groups (p > 0.05). It was observed that NAPP reduced the number of bacteria more than the control group in the 1st and 3rd months. CONCLUSIONS It was seen that the single-time NAPP application concurrent with NSPT provided additional CAL gain, elimination of putative periodontopathogens and reduced their recolonization. Longitudinal studies with larger population and longer time are required. CLINICAL RELEVANCE NSPT is an effective method for the treatment of periodontitis but bacteria recolonization that causes recurrence of the periodontal disease occurs within a short period. NAPP can reduce the recurrence of periodontal disease by providing better bacterial elimination and should, therefore, be used in maintenance of periodontitis.
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Affiliation(s)
- Diğdem Küçük
- Faculty of Dentistry, Department of Periodontology, Katip Celebi University, Izmir, Turkey.,Private Practice, Izmir, Turkey
| | - Levent Savran
- Faculty of Dentistry, Department of Periodontology, Katip Celebi University, Izmir, Turkey
| | - Utku Kürşat Ercan
- Faculty of Engineering and Architecture, Department of Biomedical Engineering, Katip Celebi University, Izmir, Turkey
| | - Ziyşan Buse Yarali
- Department of Biomedical Engineering, Tissue Engineering and Regenerative Medicine Laboratory, Katip Celebi University, Izmir, Turkey
| | - Ozan Karaman
- Faculty of Engineering and Architecture, Department of Biomedical Engineering, Katip Celebi University, Izmir, Turkey
| | - Alpdoğan Kantarci
- The Forsyth Institute, Department of Applied Oral Sciences, Center for Periodontology, Cambridge, USA
| | - Mehmet Sağlam
- Faculty of Dentistry, Department of Periodontology, Katip Celebi University, Izmir, Turkey
| | - Serhat Köseoğlu
- Faculty of Dentistry, Department of Periodontology, Katip Celebi University, Izmir, Turkey. .,Hamidiye Faculty of Dentistry, Department of Periodontology, Health Sciences University, 34668, Istanbul, Turkey.
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17
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Stepanova M, Averianov I, Serdobintsev M, Gofman I, Blum N, Semenova N, Nashchekina Y, Vinogradova T, Korzhikov-Vlakh V, Karttunen M, Korzhikova-Vlakh E. PGlu-Modified Nanocrystalline Cellulose Improves Mechanical Properties, Biocompatibility, and Mineralization of Polyester-Based Composites. Materials (Basel) 2019; 12:ma12203435. [PMID: 31640122 PMCID: PMC6829302 DOI: 10.3390/ma12203435] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/02/2019] [Revised: 10/17/2019] [Accepted: 10/18/2019] [Indexed: 01/09/2023]
Abstract
The development of biocompatible composite materials is in high demand in many fields such as biomedicine, bioengineering, and biotechnology. In this study, two series of poly (D,L-lactide) and poly (ε-caprolactone)-based films filled with neat and modified with poly (glutamic acid) (PGlu) nanocrystalline cellulose (NCC) were prepared. An analysis of scanning electron and atomic force microscopies' results shows that the modification of NCC with poly (glutamic acid) favored the better distribution of the nanofiller in the polymer matrix. Investigating the ability of the developed materials to attract and retain calcium ions led to the conclusion that composites containing NCC modified with PGlu induced better mineralization from model solutions than composites containing neat NCC. Moreover, compared to unmodified NCC, functionalization with PGlu improved the mechanical properties of composite films. The subcutaneous implantation of these composite materials into the backs of rats and the further histological investigation of neighboring tissues revealed the better biocompatibility of polyester materials filled with NCC-PGlu.
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Affiliation(s)
- Mariia Stepanova
- Institute of Macromolecular Compounds, Russian Academy of Sciences, St. Petersburg 199004, Russia.
| | - Ilia Averianov
- Institute of Macromolecular Compounds, Russian Academy of Sciences, St. Petersburg 199004, Russia.
| | - Mikhail Serdobintsev
- St. Petersburg Research Institute of Phtysiopulmonology, St. Petersburg 194064, Russia.
| | - Iosif Gofman
- Institute of Macromolecular Compounds, Russian Academy of Sciences, St. Petersburg 199004, Russia.
| | - Natalya Blum
- Interregional Laboratory Center, St. Petersburg 192283, Russia.
| | | | - Yuliya Nashchekina
- Institute of Cytology, Russian Academy of Sciences, St. Petersburg 194064, Russia.
| | - Tatiana Vinogradova
- St. Petersburg Research Institute of Phtysiopulmonology, St. Petersburg 194064, Russia.
| | - Viktor Korzhikov-Vlakh
- Institute of Macromolecular Compounds, Russian Academy of Sciences, St. Petersburg 199004, Russia.
- Institute of Chemistry, Saint-Petersburg State University, St. Petersburg 199034, Russia.
| | - Mikko Karttunen
- Institute of Macromolecular Compounds, Russian Academy of Sciences, St. Petersburg 199004, Russia.
- Department of Applied Mathematics, The University of Western Ontario, 1151 Richmond str., London, ON N5A 5B7, Canada.
- The Centre for Advanced Materials and Biomaterials Research, The University of Western Ontario, 1151 Richmond str., London, ON N6A 3K7, Canada.
- Department of Chemistry, The University of Western Ontario, 1151 Richmond str., London, ON N6A 3K7, Canada.
| | - Evgenia Korzhikova-Vlakh
- Institute of Macromolecular Compounds, Russian Academy of Sciences, St. Petersburg 199004, Russia.
- Institute of Chemistry, Saint-Petersburg State University, St. Petersburg 199034, Russia.
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18
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Onak G, Karaman O. Accelerated mineralization on nanofibers via non-thermal atmospheric plasma assisted glutamic acid templated peptide conjugation. Regen Biomater 2019; 6:231-240. [PMID: 31404337 PMCID: PMC6683955 DOI: 10.1093/rb/rbz014] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2018] [Revised: 02/14/2019] [Accepted: 03/11/2019] [Indexed: 12/25/2022] Open
Abstract
Surface modification by non-thermal atmospheric plasma (NTAP) treatment can produce significantly higher carboxylic groups on the nanofibers (NF) surface, which potentially can increase biomineralization of NF via promoting glutamic acid (GLU) templated peptide conjugation. Herein, electrospun poly(lactide-co-glycolide) (PLGA) scaffolds were treated with NTAP and conjugated with GLU peptide followed by incubation in simulated body fluids for mineralization. The effect of NTAP treatment and GLU peptide conjugation on mineralization, surface wettability and roughness were investigated. The results showed that NTAP treatment significantly increased GLU peptide conjugation which consequently enhanced mineralization and mechanical properties of NTAP treated and peptide conjugated NF (GLU-pNF) compared to neat PLGA NF, NTAP treated NF (pNF) and GLU peptide conjugated NF (GLU-NF). The effect of surface modification on human bone marrow derived mesenchymal stem cells adhesion, proliferation and morphology was evaluated by cell proliferation assay and fluorescent microscopy. Results demonstrated that cellular adhesion and proliferation were significantly higher on GLU-pNF compared to NF, pNF and GLU-NF. In summary, NTAP treatment could be a promising modification technique to induce biomimetic peptide conjugation and biomineralization for bone tissue engineering applications.
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Affiliation(s)
- Günnur Onak
- Tissue Engineering and Regenerative Medicine Laboratory, Department of Biomedical Engineering, İzmir Katip Çelebi University, İzmir, Turkey
| | - Ozan Karaman
- Tissue Engineering and Regenerative Medicine Laboratory, Department of Biomedical Engineering, İzmir Katip Çelebi University, İzmir, Turkey
- Bonegraft Biomaterials Co., Ege University Technopolis, Bornova, İzmir, Turkey
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19
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Monfared A, Ghaee A, Ebrahimi‐Barough S. Preparation and characterisation of zein/polyphenol nanofibres for nerve tissue regeneration. IET Nanobiotechnol 2019; 13:571-577. [DOI: 10.1049/iet-nbt.2018.5368] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Affiliation(s)
- Amin Monfared
- Department of Life science EngineeringFaculty of New Sciences & Technologies University of TehranTehran 14399‐57131Iran
| | - Azadeh Ghaee
- Department of Life science EngineeringFaculty of New Sciences & Technologies University of TehranTehran 14399‐57131Iran
| | - Somayeh Ebrahimi‐Barough
- Department of Tissue Engineering and Applied Cell SciencesSchool of Advanced Technologies in Medicine, Tehran University of Medical SciencesTehran 14177‐55469Iran
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20
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Barati D, Karaman O, Moeinzadeh S, Kader S, Jabbari E. Material and regenerative properties of an osteon-mimetic cortical bone-like scaffold. Regen Biomater 2019; 6:89-98. [PMID: 30967963 PMCID: PMC6446997 DOI: 10.1093/rb/rbz008] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2018] [Revised: 01/16/2019] [Accepted: 01/29/2019] [Indexed: 11/17/2022] Open
Abstract
The objective of this work was to fabricate a rigid, resorbable and osteoconductive scaffold by mimicking the hierarchical structure of the cortical bone. Aligned peptide-functionalize nanofiber microsheets were generated with calcium phosphate (CaP) content similar to that of the natural cortical bone. Next, the CaP-rich fibrous microsheets were wrapped around a microneedle to form a laminated microtube mimicking the structure of an osteon. Then, a set of the osteon-mimetic microtubes were assembled around a solid rod and the assembly was annealed to fuse the microtubes and form a shell. Next, an array of circular microholes were drilled on the outer surface of the shell to generate a cortical bone-like scaffold with an interconnected network of Haversian- and Volkmann-like microcanals. The CaP content, porosity and density of the bone-mimetic microsheets were 240 wt%, 8% and 1.9 g/ml, respectively, which were close to that of natural cortical bone. The interconnected network of microcanals in the fused microtubes increased permeability of a model protein in the scaffold. The cortical scaffold induced osteogenesis and vasculogenesis in the absence of bone morphogenetic proteins upon seeding with human mesenchymal stem cells and endothelial colony-forming cells. The localized and timed-release of morphogenetic factors significantly increased the extent of osteogenic and vasculogenic differentiation of human mesenchymal stem cells and endothelial colony-forming cells in the cortical scaffold. The cortical bone-mimetic nature of the cellular construct provided balanced rigidity, resorption rate, osteoconductivity and nutrient diffusivity to support vascularization and osteogenesis.
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Affiliation(s)
- Danial Barati
- Biomimetic Materials and Tissue Engineering Laboratory, Department of Chemical Engineering, University of South Carolina, Columbia, SC, USA
| | - Ozan Karaman
- Biomimetic Materials and Tissue Engineering Laboratory, Department of Chemical Engineering, University of South Carolina, Columbia, SC, USA
| | - Seyedsina Moeinzadeh
- Biomimetic Materials and Tissue Engineering Laboratory, Department of Chemical Engineering, University of South Carolina, Columbia, SC, USA
| | - Safaa Kader
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, SC, USA
| | - Esmaiel Jabbari
- Biomimetic Materials and Tissue Engineering Laboratory, Department of Chemical Engineering, University of South Carolina, Columbia, SC, USA
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21
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Averianov IV, Stepanova MA, Gofman IV, Nikolaeva AL, Korzhikov-vlakh VA, Karttunen M, Korzhikova-vlakh EG. Chemical modification of nanocrystalline cellulose for improved interfacial compatibility with poly(lactic acid). Mendeleev Communications 2019; 29:220-2. [DOI: 10.1016/j.mencom.2019.03.036] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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22
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Li L, Lu H, Zhao Y, Luo J, Yang L, Liu W, He Q. Functionalized cell-free scaffolds for bone defect repair inspired by self-healing of bone fractures: A review and new perspectives. Mater Sci Eng C Mater Biol Appl 2019; 98:1241-1251. [PMID: 30813005 DOI: 10.1016/j.msec.2019.01.075] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2018] [Revised: 12/15/2018] [Accepted: 01/17/2019] [Indexed: 12/20/2022]
Abstract
Studies have demonstrated that scaffolds, a component of bone tissue engineering, play an indispensable role in bone repair. However, these scaffolds involving ex-vivo cultivated cells seeded have disadvantages in clinical practice, such as limited autologous cells, time-consuming cell expansion procedures, low survival rate and immune-rejection issues. To overcome these disadvantages, recent focus has been placed on the design of functionalized cell-free scaffolds, instead of cell-seeded scaffolds, that can reduplicate the natural self-healing events of bone fractures, such as inflammation, cell recruitment, vascularization, and osteogenic differentiation. New approaches and applications in tissue engineering and regenerative medicine continue to drive the development of functionalized cell-free scaffolds for bone repair. In this review, the self-healing processes were highlighted, and approaches for the functionalization were summarized. Also, ongoing efforts and breakthroughs in the field of functionalization for bone defect repair were discussed. Finally, a brief summery and new perspectives for functionalization strategies were presented to provide guidelines for further efforts in the design of bioinspired cell-free scaffolds.
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Affiliation(s)
- Li Li
- Institute for Clean Energy & Advanced Materials, Faculty of Materials and Energy, Southwest University, Chongqing 400715, PR China; Orthopedic Department, Southwest Hospital, Army Medical University, Chongqing 400038, PR China; Key Laboratory of Biorheological Science and Technology, Ministry of Education, Bioengineering College, Chongqing University, Chongqing 400044, PR China; Orthopedic Department, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450001, PR China
| | - Hongwei Lu
- Orthopedic Department, Southwest Hospital, Army Medical University, Chongqing 400038, PR China
| | - Yulan Zhao
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, Bioengineering College, Chongqing University, Chongqing 400044, PR China
| | - Jiangming Luo
- Center of Joint Surgery, Southwest Hospital, Army Medical University, Chongqing 400038, PR China
| | - Li Yang
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, Bioengineering College, Chongqing University, Chongqing 400044, PR China
| | - Wanqian Liu
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, Bioengineering College, Chongqing University, Chongqing 400044, PR China.
| | - Qingyi He
- Institute for Clean Energy & Advanced Materials, Faculty of Materials and Energy, Southwest University, Chongqing 400715, PR China; Orthopedic Department, Southwest Hospital, Army Medical University, Chongqing 400038, PR China; Orthopedic Department, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450001, PR China.
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23
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Onak G, Şen M, Horzum N, Ercan UK, Yaralı ZB, Garipcan B, Karaman O. Aspartic and Glutamic Acid Templated Peptides Conjugation on Plasma Modified Nanofibers for Osteogenic Differentiation of Human Mesenchymal Stem Cells: A Comparative Study. Sci Rep 2018; 8:17620. [PMID: 30514892 PMCID: PMC6279782 DOI: 10.1038/s41598-018-36109-5] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2018] [Accepted: 11/14/2018] [Indexed: 11/21/2022] Open
Abstract
Optimization of nanofiber (NF) surface properties is critical to achieve an adequate cellular response. Here, the impact of conjugation of biomimetic aspartic acid (ASP) and glutamic acid (GLU) templated peptides with poly(lactic-co-glycolic acid) (PLGA) electrospun NF on osteogenic differentiation of human bone marrow-derived mesenchymal stem cells (hMSCs) was evaluated. Cold atmospheric plasma (CAP) was used to functionalize the NF surface and thus to mediate the conjugation. The influence of the CAP treatment following with peptide conjugation to the NF surface was assessed using water contact angle measurements, Fourier-Transform Infrared Spectroscopy (FTIR) and X-ray Photoelectron Spectroscopy (XPS). The effect of CAP treatment on morphology of NF was also checked using Scanning Electron Microscopy (SEM). Both the hydrophilicity of NF and the number of the carboxyl (-COOH) groups on the surface increased with respect to CAP treatment. Results demonstrated that CAP treatment significantly enhanced peptide conjugation on the surface of NF. Osteogenic differentiation results indicated that conjugating of biomimetic ASP templated peptides sharply increased alkaline phosphatase (ALP) activity, calcium content, and expression of key osteogenic markers of collagen type I (Col-I), osteocalcin (OC), and osteopontin (OP) compared to GLU conjugated (GLU-pNF) and CAP treated NF (pNF). It was further depicted that ASP sequences are the major fragments that influence the mineralization and osteogenic differentiation in non-collagenous proteins of bone extracellular matrix.
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Affiliation(s)
- Günnur Onak
- Department of Biomedical Engineering, İzmir Katip Çelebi University, İzmir, 35620, Turkey
| | - Mustafa Şen
- Department of Biomedical Engineering, İzmir Katip Çelebi University, İzmir, 35620, Turkey
| | - Nesrin Horzum
- Department of Engineering Sciences, İzmir Katip Çelebi University, İzmir, 35620, Turkey
| | - Utku Kürşat Ercan
- Department of Biomedical Engineering, İzmir Katip Çelebi University, İzmir, 35620, Turkey
| | - Ziyşan Buse Yaralı
- Department of Biomedical Engineering, İzmir Katip Çelebi University, İzmir, 35620, Turkey
| | - Bora Garipcan
- Institute of Biomedical Engineering, Bogazici University, 34684, İstanbul, Turkey
| | - Ozan Karaman
- Department of Biomedical Engineering, İzmir Katip Çelebi University, İzmir, 35620, Turkey.
- Bonegraft Biomaterials Co., Ege University Technopolis, 35100, Bornova, İzmir, Turkey.
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24
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Zhong L, Qu Y, Shi K, Chu B, Lei M, Huang K, Gu Y, Qian Z. Biomineralized polymer matrix composites for bone tissue repair: a review. Sci China Chem 2018. [DOI: 10.1007/s11426-018-9324-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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25
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Maslova OV, Senko OV, Efremenko EN. Aspartic and glutamic acids polymers: preparation and applications in medicinal chemistry and pharmaceutics. Russ Chem Bull 2018. [DOI: 10.1007/s11172-018-2115-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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Karaman O, Kelebek S, Demirci EA, İbiş F, Ulu M, Ercan UK. Synergistic Effect of Cold Plasma Treatment and RGD Peptide Coating on Cell Proliferation over Titanium Surfaces. Tissue Eng Regen Med 2018; 15:13-24. [PMID: 30603531 PMCID: PMC6171635 DOI: 10.1007/s13770-017-0087-5] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2017] [Revised: 09/12/2017] [Accepted: 09/14/2017] [Indexed: 12/21/2022] Open
Abstract
The aim of this study was to investigate the synergistic effect of cold atmospheric plasma (CAP) treatment and RGD peptide coating for enhancing cellular attachment and proliferation over titanium (Ti) surfaces. The surface structure of CAP-treated and RGD peptide-coated Ti discs were characterized by contact angle goniometer and atomic force microscopy. The effect of such surface modification on human bone marrow derived mesenchymal stem cells (hMSCs) adhesion and proliferation was assessed by cell proliferation and DNA content assays. Besides, hMSCs' adhesion and morphology on surface modified Ti discs were observed via fluorescent and scanning electron microscopy. RGD peptide coating following CAP treatment significantly enhanced cellular adhesion and proliferation among untreated, CAP-treated and RGD peptide-coated Ti discs. The treatment of Ti surfaces with CAP may contribute to improved RGD peptide coating, which enables increased cellular integrations with the Ti surfaces.
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Affiliation(s)
- Ozan Karaman
- Tissue Engineering and Regenerative Medicine Laboratory, Department of Biomedical Engineering, Faculty of Engineering and Architecture, Rm 148, İzmir Katip Çelebi University, 35620 İzmir, Turkey
| | - Seyfi Kelebek
- Department of Oral and Maxillofacial Surgery, İzmir Katip Çelebi University, 35620 İzmir, Turkey
| | - Emine Afra Demirci
- Tissue Engineering and Regenerative Medicine Laboratory, Department of Biomedical Engineering, Faculty of Engineering and Architecture, Rm 148, İzmir Katip Çelebi University, 35620 İzmir, Turkey
| | - Fatma İbiş
- Plasma Medicine Laboratory, Department of Biomedical Engineering, Faculty of Engineering and Architecture, Rm 123, İzmir Katip Çelebi University, 35620 İzmir, Turkey
| | - Murat Ulu
- Department of Oral and Maxillofacial Surgery, İzmir Katip Çelebi University, 35620 İzmir, Turkey
| | - Utku Kürşat Ercan
- Plasma Medicine Laboratory, Department of Biomedical Engineering, Faculty of Engineering and Architecture, Rm 123, İzmir Katip Çelebi University, 35620 İzmir, Turkey
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Shirali H, Rafizadeh M, Afshar Taromi F, Jabbari E. Fabrication of in situ
polymerized poly(butylene succinate-co-ethylene terephthalate)/hydroxyapatite nanocomposite to fibrous scaffolds for enhancement of osteogenesis. J Biomed Mater Res A 2017; 105:2622-2631. [DOI: 10.1002/jbm.a.36115] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2017] [Revised: 04/28/2017] [Accepted: 05/15/2017] [Indexed: 11/11/2022]
Affiliation(s)
- Hadi Shirali
- Department of Polymer Engineering and Color Technology; Amirkabir University of Technology; PO Box 15875-441 Tehran Iran
| | - Mehdi Rafizadeh
- Department of Polymer Engineering and Color Technology; Amirkabir University of Technology; PO Box 15875-441 Tehran Iran
| | - Faramarz Afshar Taromi
- Department of Polymer Engineering and Color Technology; Amirkabir University of Technology; PO Box 15875-441 Tehran Iran
| | - Esmaiel Jabbari
- Department of Chemical Engineering; Biomimetic Materials and Tissue Engineering Laboratory, University of South Carolina; Columbia South Carolina 29208
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Shin K, Acri T, Geary S, Salem AK. Biomimetic Mineralization of Biomaterials Using Simulated Body Fluids for Bone Tissue Engineering and Regenerative Medicine<sup/>. Tissue Eng Part A 2017; 23:1169-1180. [PMID: 28463603 DOI: 10.1089/ten.tea.2016.0556] [Citation(s) in RCA: 68] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Development of synthetic biomaterials imbued with inorganic and organic characteristics of natural bone that are capable of promoting effective bone tissue regeneration is an ongoing goal of regenerative medicine. Calcium phosphate (CaP) has been predominantly utilized to mimic the inorganic components of bone, such as calcium hydroxyapatite, due to its intrinsic bioactivity and osteoconductivity. CaP-based materials can be further engineered to promote osteoinductivity through the incorporation of osteogenic biomolecules. In this study, we briefly describe the microstructure and the process of natural bone mineralization and introduce various methods for coating CaP onto biomaterial surfaces. In particular, we summarize the advantages and current progress of biomimetic surface-mineralizing processes using simulated body fluids for coating bone-like carbonated apatite onto various material surfaces such as metals, ceramics, and polymers. The osteoinductive effects of integrating biomolecules such as proteins, growth factors, and genes into the mineral coatings are also discussed.
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Affiliation(s)
- Kyungsup Shin
- 1 Department of Orthodontics, College of Dentistry and Dental Clinics, University of Iowa , Iowa City, Iowa
| | - Timothy Acri
- 2 Department of Pharmaceutical Sciences and Experimental Therapeutics, College of Pharmacy, University of Iowa , Iowa City, Iowa
| | - Sean Geary
- 2 Department of Pharmaceutical Sciences and Experimental Therapeutics, College of Pharmacy, University of Iowa , Iowa City, Iowa
| | - Aliasger K Salem
- 2 Department of Pharmaceutical Sciences and Experimental Therapeutics, College of Pharmacy, University of Iowa , Iowa City, Iowa
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Moeinzadeh S, Shariati SRP, Kader S, Melero-Martin JM, Jabbari E. Devitalized Stem Cell Microsheets for Sustainable Release of Osteogenic and Vasculogenic Growth Factors and Regulation of Anti-Inflammatory Immune Response. ACTA ACUST UNITED AC 2017; 1. [PMID: 30221188 DOI: 10.1002/adbi.201600011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The objective of this work was to investigate the effect of devitalized human mesenchymal stem cells (hMSCs) and endothelial colony-forming cells (ECFCs) seeded on mineralized nanofiber microsheets on protein release, osteogenesis, vasculogenesis, and macrophage polarization. Calcium phosphate nanocrystals were grown on the surface of aligned, functionalized nanofiber microsheets. The microsheets were seeded with hMSCs, ECFCs, or a mixture of hMSCs+ECFCs, cultured for cell attachment, differentiated to the osteogenic or vasculogenic lineage, and devitalized by lyophilization. The release kinetic of total protein, bone morphogenetic protein-2 (BMP2), and vascular endothelial growth factor (VEGF) from the devitalized microsheets was measured. Next, hMSCs and/or ECFCs were seeded on the devitalized cell microsheets and cultured in the absence of osteo-/vasculo-inductive factors to determine the effect of devitalized cell microsheets on hMSC/ECFC differentiation. Human macrophages were seeded on the microsheets to determine the effect of devitalized cells on macrophage polarization. Based on the results, devitalized undifferentiated hMSC and vasculogenic-differentiated ECFC microsheets had highest sustained release of BMP2 and VEGF, respectively. The devitalized hMSC microsheets did not affect M2 macrophage polarization while vascular-differentiated, devitalized ECFC microsheets did not affect M1 polarization. Both groups stimulated higher M2 macrophage polarization compared to M1.
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Affiliation(s)
- Seyedsina Moeinzadeh
- Biomimetic Materials and Tissue Engineering Laboratory, Department of Chemical Engineering, University of South Carolina, Columbia, SC 29208, USA
| | - Seyed Ramin Pajoum Shariati
- Biomimetic Materials and Tissue Engineering Laboratory, Department of Chemical Engineering, University of South Carolina, Columbia, SC 29208, USA
| | - Safaa Kader
- Biomimetic Materials and Tissue Engineering Laboratory, Department of Chemical Engineering, University of South Carolina, Columbia, SC 29208, USA.,Department of Chemistry and Biochemistry, University of South Carolina, Columbia, SC 29208, USA
| | - Juan M Melero-Martin
- Department of Cardiac Surgery, Boston Children's Hospital, Boston, MA, 02115, USA
| | - Esmaiel Jabbari
- Biomimetic Materials and Tissue Engineering Laboratory, Department of Chemical Engineering, University of South Carolina, Columbia, SC 29208, USA
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Barati D, Kader S, Pajoum Shariati SR, Moeinzadeh S, Sawyer RH, Jabbari E. Synthesis and Characterization of Photo-Cross-Linkable Keratin Hydrogels for Stem Cell Encapsulation. Biomacromolecules 2017; 18:398-412. [DOI: 10.1021/acs.biomac.6b01493] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Affiliation(s)
- Danial Barati
- Biomimetic Materials and Tissue Engineering Laboratory, Department
of Chemical Engineering, ‡Department of Chemistry and Biochemistry, and §Department of Biological
Sciences, University of South Carolina, Columbia, South Carolina 29208, United States
| | - Safaa Kader
- Biomimetic Materials and Tissue Engineering Laboratory, Department
of Chemical Engineering, ‡Department of Chemistry and Biochemistry, and §Department of Biological
Sciences, University of South Carolina, Columbia, South Carolina 29208, United States
| | - Seyed Ramin Pajoum Shariati
- Biomimetic Materials and Tissue Engineering Laboratory, Department
of Chemical Engineering, ‡Department of Chemistry and Biochemistry, and §Department of Biological
Sciences, University of South Carolina, Columbia, South Carolina 29208, United States
| | - Seyedsina Moeinzadeh
- Biomimetic Materials and Tissue Engineering Laboratory, Department
of Chemical Engineering, ‡Department of Chemistry and Biochemistry, and §Department of Biological
Sciences, University of South Carolina, Columbia, South Carolina 29208, United States
| | - Roger H. Sawyer
- Biomimetic Materials and Tissue Engineering Laboratory, Department
of Chemical Engineering, ‡Department of Chemistry and Biochemistry, and §Department of Biological
Sciences, University of South Carolina, Columbia, South Carolina 29208, United States
| | - Esmaiel Jabbari
- Biomimetic Materials and Tissue Engineering Laboratory, Department
of Chemical Engineering, ‡Department of Chemistry and Biochemistry, and §Department of Biological
Sciences, University of South Carolina, Columbia, South Carolina 29208, United States
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Karimi T, Barati D, Karaman O, Moeinzadeh S, Jabbari E. A developmentally inspired combined mechanical and biochemical signaling approach on zonal lineage commitment of mesenchymal stem cells in articular cartilage regeneration. Integr Biol (Camb) 2015; 7:112-27. [PMID: 25387395 DOI: 10.1039/c4ib00197d] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Articular cartilage is organized into multiple zones including superficial, middle and calcified zones with distinct cellular and extracellular components to impart lubrication, compressive strength, and rigidity for load transmission to bone, respectively. During native cartilage tissue development, changes in biochemical, mechanical, and cellular factors direct the formation of stratified structure of articular cartilage. The objective of this work was to investigate the effect of combined gradients in cell density, matrix stiffness, and zone-specific growth factors on the zonal organization of articular cartilage. Human mesenchymal stem cells (hMSCs) were encapsulated in acrylate-functionalized lactide-chain-extended polyethylene glycol (SPELA) gels simulating cell density and stiffness of the superficial, middle and calcified zones. The cell-encapsulated gels were cultivated in a medium supplemented with growth factors specific to each zone and the expression of zone-specific markers was measured with incubation time. Encapsulation of 60 × 10(6) cells per mL hMSCs in a soft gel (80 kPa modulus) and cultivation with a combination of TGF-β1 (3 ng mL(-1)) and BMP-7 (100 ng mL(-1)) led to the expression of markers for the superficial zone. Conversely, encapsulation of 15 × 10(6) cells per mL hMSCs in a stiff gel (320 MPa modulus) and cultivation with a combination of TGF-β1 (30 ng mL(-1)) and hydroxyapatite (3%) led to the expression of markers for the calcified zone. Further, encapsulation of 20 × 10(6) cells per mL hMSCs in a gel with 2.1 MPa modulus and cultivation with a combination of TGF-β1 (30 ng mL(-1)) and IGF-1 (100 ng mL(-1)) led to up-regulation of the middle zone markers. Results demonstrate that a developmental approach with gradients in cell density, matrix stiffness, and zone-specific growth factors can potentially regenerate zonal structure of the articular cartilage.
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Affiliation(s)
- Tahereh Karimi
- Biomimetic Materials and Tissue Engineering Laboratory, Department of Chemical Engineering, University of South Carolina, Swearingen Engineering Center, Rm 2C11, Columbia, SC 29208, USA.
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Guven S, Chen P, Inci F, Tasoglu S, Erkmen B, Demirci U. Multiscale assembly for tissue engineering and regenerative medicine. Trends Biotechnol 2015; 33:269-279. [PMID: 25796488 DOI: 10.1016/j.tibtech.2015.02.003] [Citation(s) in RCA: 138] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2014] [Revised: 01/30/2015] [Accepted: 02/03/2015] [Indexed: 01/11/2023]
Abstract
Our understanding of cell biology and its integration with materials science has led to technological innovations in the bioengineering of tissue-mimicking grafts that can be utilized in clinical and pharmaceutical applications. Bioengineering of native-like multiscale building blocks provides refined control over the cellular microenvironment, thus enabling functional tissues. In this review, we focus on assembling building blocks from the biomolecular level to the millimeter scale. We also provide an overview of techniques for assembling molecules, cells, spheroids, and microgels and achieving bottom-up tissue engineering. Additionally, we discuss driving mechanisms for self- and guided assembly to create micro-to-macro scale tissue structures.
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Affiliation(s)
- Sinan Guven
- Bio-Acoustic MEMS in Medicine (BAMM) Laboratory, Canary Center at Stanford for Cancer Early Detection, Department of Radiology, Stanford School of Medicine, Palo Alto, CA 94304, USA
| | - Pu Chen
- Bio-Acoustic MEMS in Medicine (BAMM) Laboratory, Canary Center at Stanford for Cancer Early Detection, Department of Radiology, Stanford School of Medicine, Palo Alto, CA 94304, USA
| | - Fatih Inci
- Bio-Acoustic MEMS in Medicine (BAMM) Laboratory, Canary Center at Stanford for Cancer Early Detection, Department of Radiology, Stanford School of Medicine, Palo Alto, CA 94304, USA
| | - Savas Tasoglu
- Bio-Acoustic MEMS in Medicine (BAMM) Laboratory, Canary Center at Stanford for Cancer Early Detection, Department of Radiology, Stanford School of Medicine, Palo Alto, CA 94304, USA
| | - Burcu Erkmen
- BAMM Laboratory, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Utkan Demirci
- Bio-Acoustic MEMS in Medicine (BAMM) Laboratory, Canary Center at Stanford for Cancer Early Detection, Department of Radiology, Stanford School of Medicine, Palo Alto, CA 94304, USA
- BAMM Laboratory, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
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