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Alginate Modification and Lectin-Conjugation Approach to Synthesize the Mucoadhesive Matrix. APPLIED SCIENCES-BASEL 2021. [DOI: 10.3390/app112411818] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Alginates are natural anionic polyelectrolytes investigated in various biomedical applications, such as drug delivery, tissue engineering, and 3D bioprinting. Functionalization of alginates is one possible way to provide a broad range of requirements for those applications. A range of techniques, including esterification, amidation, acetylation, phosphorylation, sulfation, graft copolymerization, and oxidation and reduction, have been implemented for this purpose. The rationale behind these investigations is often the combination of such modified alginates with different molecules. Particularly promising are lectin conjugate macromolecules for lectin-mediated drug delivery, which enhance the bioavailability of active ingredients on a specific site. Most interesting for such application are alginate derivatives, because these macromolecules are more resistant to acidic and enzymatic degradation. This review will report recent progress in alginate modification and conjugation, focusing on alginate-lectin conjugation, which is proposed as a matrix for mucoadhesive drug delivery and provides a new perspective for future studies with these conjugation methods.
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2
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Acevedo-Jake A, Shi S, Siddiqui Z, Sanyal S, Schur R, Kaja S, Yuan A, Kumar VA. Preclinical Efficacy of Pro- and Anti-Angiogenic Peptide Hydrogels to Treat Age-Related Macular Degeneration. Bioengineering (Basel) 2021; 8:190. [PMID: 34940343 PMCID: PMC8698576 DOI: 10.3390/bioengineering8120190] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2021] [Revised: 11/20/2021] [Accepted: 11/21/2021] [Indexed: 12/15/2022] Open
Abstract
Pro-angiogenic and anti-angiogenic peptide hydrogels were evaluated against the standard of care wet age-related macular degeneration (AMD) therapy, Aflibercept (Eylea®). AMD was modeled in rats (laser-induced choroidal neovascularization (CNV) model), where the contralateral eye served as the control. After administration of therapeutics, vasculature was monitored for 14 days to evaluate leakiness. Rats were treated with either a low or high concentration of anti-angiogenic peptide hydrogel (0.02 wt% 8 rats, 0.2 wt% 6 rats), or a pro-angiogenic peptide hydrogel (1.0 wt% 7 rats). As controls, six rats were treated with commercially available Aflibercept and six with sucrose solution (vehicle control). Post lasering, efficacy was determined over 14 days via fluorescein angiography (FA) and spectral-domain optical coherence tomography (SD-OCT). Before and after treatment, the average areas of vascular leak per lesion were evaluated as well as the overall vessel leakiness. Unexpectedly, treatment with pro-angiogenic peptide hydrogel showed significant, immediate improvement in reducing vascular leak; in the short term, the pro-angiogenic peptide performed better than anti-angiogenic peptide hydrogel and was comparable to Aflibercept. After 14 days, both the pro-angiogenic and anti-angiogenic peptide hydrogels show a trend of improvement, comparable to Aflibercept. Based on our results, both anti-angiogenic and pro-angiogenic peptide hydrogels may prove good therapeutics in the future to treat wet AMD over a longer-term treatment period.
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Affiliation(s)
- Amanda Acevedo-Jake
- Department of Biomedical Engineering, New Jersey Institute of Technology, Newark, NJ 07102, USA; (A.A.-J.); (Z.S.)
| | - Siyu Shi
- Stanford School of Medicine, Stanford University, Stanford, CA 94305, USA;
| | - Zain Siddiqui
- Department of Biomedical Engineering, New Jersey Institute of Technology, Newark, NJ 07102, USA; (A.A.-J.); (Z.S.)
| | - Sreya Sanyal
- Department of Biology, New Jersey Institute of Technology, Newark, NJ 07102, USA;
| | - Rebecca Schur
- Cole Eye Institute, Cleveland Clinic Lerner College of Medicine, Cleveland, OH 44195, USA; (R.S.); (A.Y.)
| | - Simon Kaja
- Research & Development Division, Experimentica Ltd., 70211 Kuopio, Finland;
- Department of Ophthalmology, Loyola University Chicago, Maywood, IL 60153, USA
| | - Alex Yuan
- Cole Eye Institute, Cleveland Clinic Lerner College of Medicine, Cleveland, OH 44195, USA; (R.S.); (A.Y.)
| | - Vivek A. Kumar
- Department of Biomedical Engineering, New Jersey Institute of Technology, Newark, NJ 07102, USA; (A.A.-J.); (Z.S.)
- Department of Biology, New Jersey Institute of Technology, Newark, NJ 07102, USA;
- Department of Chemical Engineering, New Jersey Institute of Technology, Newark, NJ 07102, USA
- Department of Restorative Dentistry, Rutgers School of Dental Medicine, Newark, NJ 07102, USA
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3
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Mollah MZI, Zahid HM, Mahal Z, Faruque MRI, Khandaker MU. The Usages and Potential Uses of Alginate for Healthcare Applications. Front Mol Biosci 2021; 8:719972. [PMID: 34692769 PMCID: PMC8530156 DOI: 10.3389/fmolb.2021.719972] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Accepted: 09/07/2021] [Indexed: 01/09/2023] Open
Abstract
Due to their unique properties, alginate-based biomaterials have been extensively used to treat different diseases, and in the regeneration of diverse organs. A lot of research has been done by the different scientific community to develop biofilms for fulfilling the need for sustainable human health. The aim of this review is to hit upon a hydrogel enhancing the scope of utilization in biomedical applications. The presence of active sites in alginate hydrogels can be manipulated for managing various non-communicable diseases by encapsulating, with the bioactive component as a potential site for chemicals in developing drugs, or for delivering macromolecule nutrients. Gels are accepted for cell implantation in tissue regeneration, as they can transfer cells to the intended site. Thus, this review will accelerate advanced research avenues in tissue engineering and the potential of alginate biofilms in the healthcare sector.
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Affiliation(s)
- M Z I Mollah
- Space Science Centre (ANGKASA), Universiti Kebangsaan Malaysia, Bangi, Malaysia.,Institute of Radiation and Polymer Technology, Bangladesh Atomic Energy Commission, Dhaka, Bangladesh
| | - H M Zahid
- Institute of Radiation and Polymer Technology, Bangladesh Atomic Energy Commission, Dhaka, Bangladesh
| | - Z Mahal
- Institute of Radiation and Polymer Technology, Bangladesh Atomic Energy Commission, Dhaka, Bangladesh
| | | | - M U Khandaker
- Centre for Applied Physics and Radiation Technologies, School of Engineering and Technology, Sunway University, Selangor, Malaysia
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4
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Preparation of Alginate-Based Biomaterials and Their Applications in Biomedicine. Mar Drugs 2021; 19:md19050264. [PMID: 34068547 PMCID: PMC8150954 DOI: 10.3390/md19050264] [Citation(s) in RCA: 120] [Impact Index Per Article: 40.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Revised: 04/26/2021] [Accepted: 04/30/2021] [Indexed: 12/14/2022] Open
Abstract
Alginates are naturally occurring polysaccharides extracted from brown marine algae and bacteria. Being biocompatible, biodegradable, non-toxic and easy to gel, alginates can be processed into various forms, such as hydrogels, microspheres, fibers and sponges, and have been widely applied in biomedical field. The present review provides an overview of the properties and processing methods of alginates, as well as their applications in wound healing, tissue repair and drug delivery in recent years.
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5
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Fabrication and properties of alginate-hydroxyapatite biocomposites as efficient biomaterials for bone regeneration. Eur Polym J 2021. [DOI: 10.1016/j.eurpolymj.2021.110444] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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6
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Hersh J, Broyles D, Capcha JMC, Dikici E, Shehadeh LA, Daunert S, Deo S. Peptide-Modified Biopolymers for Biomedical Applications. ACS APPLIED BIO MATERIALS 2021; 4:229-251. [PMID: 34250454 PMCID: PMC8267604 DOI: 10.1021/acsabm.0c01145] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Polymeric biomaterials have been used in a variety of applications, like cargo delivery and tissue scaffolding, because they are easily synthesized and can be adapted to many systems. However, there is still a need to further enhance and improve their functions to progress their use in the biomedical field. A promising solution is to modify the polymer surfaces with peptides that can increase biocompatibility, cellular interactions, and receptor targeting. In recent years, peptide modifications have been used to overcome many challenges to polymer biomaterial development. This review discusses recent progress in developing peptide-modified polymers for therapeutic applications including cell-specific targeting and tissue engineering. Furthermore, we will explore some of the most frequently studied base components of these biomaterials.
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Affiliation(s)
- Jessica Hersh
- Department of Biochemistry and Molecular Biology, University of Miami Leonard M. Miller School of Medicine, Miami, Florida 33136, United States
| | - David Broyles
- Department of Biochemistry and Molecular Biology, University of Miami Leonard M. Miller School of Medicine, Miami, Florida 33136, United States
| | - José Manuel Condor Capcha
- Interdisciplinary Stem Cell Institute and Division of Cardiology, Department of Medicine, University of Miami Leonard M. Miller School of Medicine, Miami, Florida 33136, United States
| | - Emre Dikici
- Department of Biochemistry and Molecular Biology, University of Miami Leonard M. Miller School of Medicine, Miami, Florida 33136, United States
| | - Lina A Shehadeh
- Interdisciplinary Stem Cell Institute and Division of Cardiology, Department of Medicine, University of Miami Leonard M. Miller School of Medicine, Miami, Florida 33136, United States
| | - Sylvia Daunert
- Department of Biochemistry and Molecular Biology, University of Miami Leonard M. Miller School of Medicine, Miami, Florida 33136, United States
| | - Sapna Deo
- Department of Biochemistry and Molecular Biology, University of Miami Leonard M. Miller School of Medicine, Miami, Florida 33136, United States
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7
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Carbohydrate polymer-based silver nanocomposites: Recent progress in the antimicrobial wound dressings. Carbohydr Polym 2020; 231:115696. [DOI: 10.1016/j.carbpol.2019.115696] [Citation(s) in RCA: 69] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2019] [Revised: 11/23/2019] [Accepted: 11/28/2019] [Indexed: 02/08/2023]
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8
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Kung FC. Injectable collagen/RGD systems for bone tissue engineering applications. Biomed Mater Eng 2018; 29:241-251. [PMID: 29457597 DOI: 10.3233/bme-171726] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Imbalance crosslink density and polymer concentration gradient is formed within the traditional alginate hydrogel using calcium chloride as a crosslinking agent in external gelation for instantaneously process. In this studying, type I collagen (Col I) blended calcium salt form of poly(γ-glutamic acid) (γCaPGA) was mixing with RGD-modified alginate with convenient gelation process and suitable for practical use. The hydrophilicity of the resulting hydrogels was evaluated through swelling tests, water retention capacity tests, and water vapor permeation tests. Mineralization was qualitatively evaluated by alizarin red dyeing at day 14, verifying the deposition of calcium. The in vitro osteogenic differentiation is monitored by determining the early and late osteocalcin (OCN) and osteopontin (OPN) markers with MG63 cells. Obtained results demonstrated that no extremely changes in mechanical properties. After 14 days of culture, hydrogels significantly stimulated OCN/OPN gene expressions and MG63 cell proliferation. Unusually, γCaPGA with RGD-modified alginate appeared better calcium deposition in 14 days than the other. However, addition of Col I can counterpoise RGD effect in blood coagulation and platelet adhesion made the hydrogel more flexibility and selectively in use. This studying provided that non-covalently crosslinked hydrogel by γCaPGA with alginate can be upgrading by RGD and Col I in water uptake capability, obviously effective for MG63 cells and are remarkably biocompatible and exhibited no cytotoxicity. Moreover, results also displayed the injectable process without complicated procedure, have high cost/performance ratio and have great potential for bone regeneration.
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Affiliation(s)
- Fu-Chen Kung
- Department of Health Healing and Health Marketing, Kainan University, Taoyuan 338, Taiwan. Tel.: +886-3-341-2500 #7971; Fax: +886-3-341-4428; E-mail:
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9
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Luo Z, Zhang S, Pan J, Shi R, Liu H, Lyu Y, Han X, Li Y, Yang Y, Xu Z, Sui Y, Luo E, Zhang Y, Wei S. Time-responsive osteogenic niche of stem cells: A sequentially triggered, dual-peptide loaded, alginate hybrid system for promoting cell activity and osteo-differentiation. Biomaterials 2018; 163:25-42. [PMID: 29452946 DOI: 10.1016/j.biomaterials.2018.02.025] [Citation(s) in RCA: 62] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2017] [Revised: 01/27/2018] [Accepted: 02/09/2018] [Indexed: 01/24/2023]
Abstract
The efficacy of stem cell-based bone tissue engineering has been hampered by cell death and limited fate control. A smart cell culture system with the capability of sequentially delivering multiple factors in specific growth stages, like the mechanism of the natural extracellular matrix modulating tissue formation, is attractive for enhancing cell activity and controlling cell fate. Here, a bone forming peptide-1 (BFP-1)-laden mesoporous silica nanoparticles (pep@MSNs) incorporated adhesion peptide, containing the arginine-glycine-aspartic acid (RGD) domain, modified alginate hydrogel (RA) system (pep@MSNs-RA) was developed to promote the activity and stimulate osteo-differentiation of human mesenchymal stem cells (hMSCs) in sequence. The survivability and proliferation of hMSCs were enhanced in the adhesion peptide modified hydrogel. Next, BFP-1 released from pep@MSNs induced hMSCs osteo-differentiation after the proliferation stage. Moreover, BFP-1 near the cells was self-captured by the additional cell-peptide cross-linked networks formed by the ligands (RGD) binding to receptors on the cell surface, leading to long-term sustained osteo-stimulation of hMSCs. The results suggest that independent and sequential stimulation in proliferation and osteo-differentiation stages could synergistically enhance the survivability, expansion, and osteogenesis of hMSCs, as compared to stimulating alone or simultaneously. Overall, this study provided a new and valid strategy for stem cell expansion and osteo-differentiation in 2D or 3D culture systems, possessing potential applications in 3D bio-printing and tissue regeneration.
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Affiliation(s)
- Zuyuan Luo
- Central Laboratory, School and Hospital of Stomatology, Peking University, National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing 100081, China; Laboratory for Biomaterials and Regenerative Medicine, Academy for Advanced Interdisciplinary Studies, Peking University, Beijing 100871, China
| | - Siqi Zhang
- Laboratory for Biomaterials and Regenerative Medicine, Academy for Advanced Interdisciplinary Studies, Peking University, Beijing 100871, China
| | - Jijia Pan
- Laboratory for Biomaterials and Regenerative Medicine, Academy for Advanced Interdisciplinary Studies, Peking University, Beijing 100871, China
| | - Rui Shi
- Central Laboratory, School and Hospital of Stomatology, Peking University, National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing 100081, China
| | - Hao Liu
- Central Laboratory, School and Hospital of Stomatology, Peking University, National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing 100081, China
| | - Yalin Lyu
- Department of Stomatology, Beijing Anzhen Hospital, Capital Medical University, Beijing 100029, China.
| | - Xiao Han
- Department of Stomatology, Beijing Anzhen Hospital, Capital Medical University, Beijing 100029, China
| | - Yan Li
- Central Laboratory, School and Hospital of Stomatology, Peking University, National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing 100081, China
| | - Yue Yang
- Department of Stomatology, Xuanwu Hospital, Capital Medical University, Beijing 100053, China
| | - Zhixiu Xu
- Department of Oral Pathology, School and Hospital of Stomatology, Peking University, Beijing 100081, China
| | - Yi Sui
- Central Laboratory, School and Hospital of Stomatology, Peking University, National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing 100081, China
| | - En Luo
- Department of Oral and Maxillofacial Surgery, West China School and Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - Yuanyuan Zhang
- Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, Winston-Salem, NC 27157, USA.
| | - Shicheng Wei
- Central Laboratory, School and Hospital of Stomatology, Peking University, National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing 100081, China; Laboratory for Biomaterials and Regenerative Medicine, Academy for Advanced Interdisciplinary Studies, Peking University, Beijing 100871, China.
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10
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Somo SI, Langert K, Yang CY, Vaicik MK, Ibarra V, Appel AA, Akar B, Cheng MH, Brey EM. Synthesis and evaluation of dual crosslinked alginate microbeads. Acta Biomater 2018; 65:53-65. [PMID: 29101016 PMCID: PMC5902406 DOI: 10.1016/j.actbio.2017.10.046] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2017] [Revised: 10/28/2017] [Accepted: 10/30/2017] [Indexed: 12/17/2022]
Abstract
Alginate hydrogels have been investigated for a broad variety of medical applications. The ability to assemble hydrogels at neutral pH and mild temperatures makes alginate a popular choice for the encapsulation and delivery of cells and proteins. Alginate has been studied extensively for the delivery of islets as a treatment for type 1 diabetes. However, poor stability of the encapsulation systems after implantation remains a challenge. In this paper, alginate was modified with 2-aminoethyl methacrylate hydrochloride (AEMA) to introduce groups that can be photoactivated to generate covalent bonds. This enabled formation of dual crosslinked structure upon exposure to ultraviolet light following initial ionic crosslinking into bead structures. The degree of methacrylation was varied and in vitro stability, long term swelling, and cell viability examined. At low levels of the methacrylation, the beads could be formed by first ionic crosslinks followed by exposure to ultraviolet light to generate covalent bonds. The methacrylated alginate resulted in more stable beads and cells were viable following encapsulation. Alginate microbeads, ionic (unmodified) and dual crosslinked, were implanted into a rat omentum pouch model. Implantation was performed with a local injection of 100 µl of 50 µg/ml of Lipopolysaccharide (LPS) to stimulate a robust inflammatory challenge in vivo. Implants were retrieved at 1 and 3 weeks for analysis. The unmodified alginate microbeads had all failed by week 1, whereas the dual-crosslinked alginate microbeads remained stable up through 3 weeks. The modified alginate microbeads may provide a more stable alternative to current alginate-based systems for cell encapsulation. STATEMENT OF SIGNIFICANCE Alginate, a naturally occurring polysaccharide, has been used for cell encapsulation to prevent graft rejection of cell transplants for people with type I diabetes. Although some success has been observed in clinical trials, the lack of reproducibility and failure to reach insulin dependence for longer periods of time indicates the need for improvements in the procedure. A major requirement for the long-term function of alginate encapsulated cells is the mechanical stability of microcapsules. Insufficient mechanical integrity of the capsules can lead to immunological reactions in the recipients. In this work, alginate was modified to allow photoactivatable groups in order to allow formation of covalent crosslinks in addition to ionic crosslinking. The dual crosslinking design prevents capsule breakdown following implantation in vivo.
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Affiliation(s)
- Sami I Somo
- Department of Biomedical Engineering, Illinois Institute of Technology, Chicago, IL, USA; Research Service, Edward Hines, Jr. VA. Hospital, Hines, IL, USA
| | - Kelly Langert
- Department of Biomedical Engineering, Illinois Institute of Technology, Chicago, IL, USA; Research Service, Edward Hines, Jr. VA. Hospital, Hines, IL, USA
| | - Chin-Yu Yang
- Center for Tissue Engineering, Chang Gung Memorial Hospital, Taoyuan, Taiwan
| | - Marcella K Vaicik
- Department of Biomedical Engineering, Illinois Institute of Technology, Chicago, IL, USA; Research Service, Edward Hines, Jr. VA. Hospital, Hines, IL, USA
| | - Veronica Ibarra
- Department of Biomedical Engineering, Illinois Institute of Technology, Chicago, IL, USA
| | - Alyssa A Appel
- Department of Biomedical Engineering, Illinois Institute of Technology, Chicago, IL, USA
| | - Banu Akar
- Department of Biomedical Engineering, Illinois Institute of Technology, Chicago, IL, USA; Research Service, Edward Hines, Jr. VA. Hospital, Hines, IL, USA
| | - Ming-Huei Cheng
- Center for Tissue Engineering, Chang Gung Memorial Hospital, Taoyuan, Taiwan.
| | - Eric M Brey
- Department of Biomedical Engineering, Illinois Institute of Technology, Chicago, IL, USA; Research Service, Audie L. Murphy Memorial VA Hospital, San Antonio, TX, USA; Department of Biomedical Engineering, University of Texas at San Antonio, San Antonio, TX, USA
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11
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Pérez-Madrigal MM, Torras J, Casanovas J, Häring M, Alemán C, Díaz DD. Paradigm Shift for Preparing Versatile M2+-Free Gels from Unmodified Sodium Alginate. Biomacromolecules 2017; 18:2967-2979. [DOI: 10.1021/acs.biomac.7b00934] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Maria M. Pérez-Madrigal
- Institut
für Organische Chemie, Universität Regensburg, Universitätsstr.
31, D-93053 Regensburg, Germany
| | | | - Jordi Casanovas
- Departament
de Química, EPS, Universitat de Lleida, Jaume II 69, 25001 Lleida, Spain
| | - Marleen Häring
- Institut
für Organische Chemie, Universität Regensburg, Universitätsstr.
31, D-93053 Regensburg, Germany
| | | | - David Díaz Díaz
- Institut
für Organische Chemie, Universität Regensburg, Universitätsstr.
31, D-93053 Regensburg, Germany
- IQAC−CSIC, Jordi Girona 18-26, E-08034 Barcelona, Spain
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Loebel C, Stauber T, D'Este M, Alini M, Zenobi-Wong M, Eglin D. Fabrication of cell-compatible hyaluronan hydrogels with a wide range of biophysical properties through high tyramine functionalization. J Mater Chem B 2017; 5:2355-2363. [DOI: 10.1039/c6tb03161g] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Hyaluronan–tyramine derivatives are synthesized and the hydrogels obtained permit viable cell encapsulation with a wide range of mechanical properties.
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Affiliation(s)
- Claudia Loebel
- AO Research Institute Davos
- Davos Platz
- Switzerland
- ETH Zurich
- Cartilage Engineering + Regeneration
| | - Tino Stauber
- ETH Zurich
- Cartilage Engineering + Regeneration
- Department of Health
- Science and Technology
- Zürich
| | | | - Mauro Alini
- AO Research Institute Davos
- Davos Platz
- Switzerland
| | - Marcy Zenobi-Wong
- ETH Zurich
- Cartilage Engineering + Regeneration
- Department of Health
- Science and Technology
- Zürich
| | - David Eglin
- AO Research Institute Davos
- Davos Platz
- Switzerland
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Marturano JE, Schiele NR, Schiller ZA, Galassi TV, Stoppato M, Kuo CK. Embryonically inspired scaffolds regulate tenogenically differentiating cells. J Biomech 2016; 49:3281-3288. [PMID: 27641547 DOI: 10.1016/j.jbiomech.2016.08.011] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2016] [Revised: 07/14/2016] [Accepted: 08/09/2016] [Indexed: 11/30/2022]
Abstract
Tendon injuries heal as scar tissue with significant dysfunction and propensity to re-injure, motivating efforts to develop stem cell-based therapies for tendon regeneration. For these therapies to succeed, effective cues to guide tenogenesis are needed. Our aim is to identify these cues within the embryonic tendon microenvironment. We recently demonstrated embryonic tendon elastic modulus increases during development and is substantially lower than in adult. Here, we examined how these embryonic mechanical properties influence tenogenically differentiating cells, by culturing embryonic tendon progenitor cells (TPCs) within alginate gel scaffolds fabricated with embryonic tendon mechanical properties. We showed that nano- and microscale moduli of RGD-functionalized alginate gels can be tailored to that of embryonic tendons by adjusting polymer concentration and crosslink density. These gels differentially regulated morphology of encapsulated TPCs as a function of initial elastic modulus. Additionally, higher initial elastic moduli elicited higher mRNA levels of scleraxis and collagen type XII but lower levels of collagen type I, whereas late tendon markers tenomodulin and collagen type III were unaffected. Our results demonstrate the potential to engineer scaffolds with embryonic mechanical properties and to use these scaffolds to regulate the behavior of tenogenically differentiating cells.
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Affiliation(s)
- Joseph E Marturano
- Tufts University, Department of Biomedical Engineering, 4 Colby St, Medford, MA 02155, United States
| | - Nathan R Schiele
- Tufts University, Department of Biomedical Engineering, 4 Colby St, Medford, MA 02155, United States
| | - Zachary A Schiller
- Tufts University, Department of Biomedical Engineering, 4 Colby St, Medford, MA 02155, United States
| | - Thomas V Galassi
- Tufts University, Department of Biomedical Engineering, 4 Colby St, Medford, MA 02155, United States
| | - Matteo Stoppato
- Tufts University, Department of Biomedical Engineering, 4 Colby St, Medford, MA 02155, United States
| | - Catherine K Kuo
- Tufts University, Department of Biomedical Engineering, 4 Colby St, Medford, MA 02155, United States; University of Rochester, Department of Biomedical Engineering, Department of Orthopaedics, Center for Musculoskeletal Research, 215 Robert B. Goergen Hall, Rochester, NY 14627, United States.
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14
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Poveda-Reyes S, Moulisova V, Sanmartín-Masiá E, Quintanilla-Sierra L, Salmerón-Sánchez M, Ferrer GG. Gelatin-Hyaluronic Acid Hydrogels with Tuned Stiffness to Counterbalance Cellular Forces and Promote Cell Differentiation. Macromol Biosci 2016; 16:1311-24. [DOI: 10.1002/mabi.201500469] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2015] [Revised: 03/29/2016] [Indexed: 12/30/2022]
Affiliation(s)
- Sara Poveda-Reyes
- Center for Biomaterials and Tissue Engineering (CBIT); Universitat Politècnica de València; Valencia 46022
| | - Vladimira Moulisova
- Division of Biomedical Engineering; School of Engineering; University of Glasgow; Glasgow G12 8QQ UK
| | - Esther Sanmartín-Masiá
- Center for Biomaterials and Tissue Engineering (CBIT); Universitat Politècnica de València; Valencia 46022
| | - Luis Quintanilla-Sierra
- BIOFORGE Group; Centro de Investigación Científica y Desarrollo Tecnológico; Campus de Miguel Delibes; Universidad de Valladolid; Valladolid 47011 Spain
| | - Manuel Salmerón-Sánchez
- Division of Biomedical Engineering; School of Engineering; University of Glasgow; Glasgow G12 8QQ UK
| | - Gloria Gallego Ferrer
- Center for Biomaterials and Tissue Engineering (CBIT); Universitat Politècnica de València; Valencia 46022
- Biomedical Research Networking Center in Bioengineering; Biomaterials and Nanomedicine (CIBER-BBN); Valencia 46022 Spain
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15
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Grasman JM, Zayas MJ, Page RL, Pins GD. Biomimetic scaffolds for regeneration of volumetric muscle loss in skeletal muscle injuries. Acta Biomater 2015. [PMID: 26219862 DOI: 10.1016/j.actbio.2015.07.038] [Citation(s) in RCA: 130] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Skeletal muscle injuries typically result from traumatic incidents such as combat injuries where soft-tissue extremity injuries are present in one of four cases. Further, about 4.5 million reconstructive surgical procedures are performed annually as a result of car accidents, cancer ablation, or cosmetic procedures. These combat- and trauma-induced skeletal muscle injuries are characterized by volumetric muscle loss (VML), which significantly reduces the functionality of the injured muscle. While skeletal muscle has an innate repair mechanism, it is unable to compensate for VML injuries because large amounts of tissue including connective tissue and basement membrane are removed or destroyed. This results in a significant need to develop off-the-shelf biomimetic scaffolds to direct skeletal muscle regeneration. Here, the structure and organization of native skeletal muscle tissue is described in order to reveal clear design parameters that are necessary for scaffolds to mimic in order to successfully regenerate muscular tissue. We review the literature with respect to the materials and methodologies used to develop scaffolds for skeletal muscle tissue regeneration as well as the limitations of these materials. We further discuss the variety of cell sources and different injury models to provide some context for the multiple approaches used to evaluate these scaffold materials. Recent findings are highlighted to address the state of the field and directions are outlined for future strategies, both in scaffold design and in the use of different injury models to evaluate these materials, for regenerating functional skeletal muscle. STATEMENT OF SIGNIFICANCE Volumetric muscle loss (VML) injuries result from traumatic incidents such as those presented from combat missions, where soft-tissue extremity injuries are represented in one of four cases. These injuries remove or destroy large amounts of skeletal muscle including the basement membrane and connective tissue, removing the structural, mechanical, and biochemical cues that usually direct its repair. This results in a significant need to develop off-the-shelf biomimetic scaffolds to direct skeletal muscle regeneration. In this review, we examine current strategies for the development of scaffold materials designed for skeletal muscle regeneration, highlighting advances and limitations associated with these methodologies. Finally, we identify future approaches to enhance skeletal muscle regeneration.
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Ding K, Yang Z, Xu JZ, Liu WY, Zeng Q, Hou F, Lin S. Elastic hydrogel substrate supports robust expansion of murine myoblasts and enhances their engraftment. Exp Cell Res 2015. [PMID: 26210646 DOI: 10.1016/j.yexcr.2015.07.021] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The application of satellite cell-derived myoblasts in regenerative medicine has been restricted by the rapid loss of stemness during in vitro cell expansion using traditional culture systems. However, studies published in the past decade have highlighted the influence of substrate elasticity on stem cell fate and revealed that culture on a soft hydrogel substrate can promote self-renewal and prolong the regenerative potential of muscle stem cells. Whether hydrogel substrates have similar effects after long-term robust expansion remains to be determined. Herein we prepared an elastic chitosan/beta-glycerophosphate/collagen hydrogel mimicking the soft microenvironment of muscle tissues for use as the substrate for satellite cell culture and investigated its influence on long-term cell expansion. After 20 passages in culture, satellite cell-derived myoblasts cultured on our hydrogel substrate exhibited significant improvements in proliferation capability, cell viability, colony forming frequency, and potential for myogenic differentiation compared to those cultured on a routine rigid culture surface. Immunochemical staining and western blot analysis both confirmed that myoblasts cultured on the hydrogel substrate expressed higher levels of several differentiation-related markers, including Pax7, Pax3, and SSEA-1, and a lower level of MyoD compared to myoblasts cultured on rigid culture plates (all p<0.05). After transplantation into the tibialis anterior of nude mice, myoblasts that had been cultured on the hydrogel substrate demonstrated a significantly greater engraftment efficacy than those cultured on the traditional surface. Collectively, these results indicate that the elastic hydrogel substrate supported robust expansion of murine myoblasts and enhanced their engraftment in vivo.
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Affiliation(s)
- Ke Ding
- Department of Pediatric Surgery, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital, Chengdu 610072, China.
| | - Zhong Yang
- Department of Clinical Hematology, Southwest Hospital, Third Military Medical University, Chongqing 400038, China
| | - Jian-Zhong Xu
- Department of Orthopaedics, Southwest Hospital, Third Military Medical University, Chongqing 400038, China.
| | - Wen-Ying Liu
- Department of Pediatric Surgery, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital, Chengdu 610072, China
| | - Qiang Zeng
- Department of Pediatric Surgery, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital, Chengdu 610072, China
| | - Fang Hou
- Department of Pediatric Surgery, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital, Chengdu 610072, China
| | - Sen Lin
- Department of Anatomy and Histology & Embryology, Chengdu Medical College, Chengdu 610500, China
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17
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Schiele NR, von Flotow F, Tochka ZL, Hockaday LA, Marturano JE, Thibodeau JJ, Kuo CK. Actin cytoskeleton contributes to the elastic modulus of embryonic tendon during early development. J Orthop Res 2015; 33:874-81. [PMID: 25721681 PMCID: PMC4889338 DOI: 10.1002/jor.22880] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/06/2014] [Accepted: 02/20/2015] [Indexed: 02/04/2023]
Abstract
Tendon injuries are common and heal poorly. Strategies to regenerate or replace injured tendons are challenged by an incomplete understanding of normal tendon development. Our previous study showed that embryonic tendon elastic modulus increases as a function of developmental stage. Inhibition of enzymatic collagen crosslink formation abrogated increases in tendon elastic modulus at late developmental stages, but did not affect increases in elastic modulus of early stage embryonic tendons. Here, we aimed to identify potential contributors to the mechanical properties of these early stage embryonic tendons. We characterized tendon progenitor cells in early stage embryonic tendons, and the influence of actin cytoskeleton disruption on tissue elastic modulus. Cells were closely packed in embryonic tendons, and did not change in density during early development. We observed an organized network of actin filaments that seemed contiguous between adjacent cells. The actin filaments exhibited a crimp pattern with a period and amplitude that matched the crimp of collagen fibers at each developmental stage. Chemical disruption of the actin cytoskeleton decreased tendon tissue elastic modulus, measured by atomic force microscopy. Our results demonstrate that early developmental stage embryonic tendons possess a well organized actin cytoskeleton network that contributes significantly to tendon tissue mechanical properties.
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Affiliation(s)
- Nathan R. Schiele
- Department of Biomedical Engineering, Tufts University, Medford, Massachusetts
| | | | - Zachary L. Tochka
- Department of Biomedical Engineering, Tufts University, Medford, Massachusetts
| | - Laura A. Hockaday
- Department of Biomedical Engineering, Tufts University, Medford, Massachusetts
| | - Joseph E. Marturano
- Department of Biomedical Engineering, Tufts University, Medford, Massachusetts
| | | | - Catherine K. Kuo
- Department of Biomedical Engineering, Tufts University, Medford, Massachusetts,Cell, Molecular & Developmental Biology Program, Sackler School of Graduate Biomedical Sciences, Tufts University School of Medicine, Boston, Massachusetts
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18
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Hybrid scaffold composed of hydrogel/3D-framework and its application as a dopamine delivery system. J Control Release 2014; 175:10-6. [DOI: 10.1016/j.jconrel.2013.12.002] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2013] [Revised: 10/08/2013] [Accepted: 12/03/2013] [Indexed: 01/07/2023]
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19
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Lee C, Shin J, Lee JS, Byun E, Ryu JH, Um SH, Kim DI, Lee H, Cho SW. Bioinspired, Calcium-Free Alginate Hydrogels with Tunable Physical and Mechanical Properties and Improved Biocompatibility. Biomacromolecules 2013; 14:2004-13. [DOI: 10.1021/bm400352d] [Citation(s) in RCA: 204] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Changhyun Lee
- Department of Biotechnology, Yonsei University, Seoul 120-749, Republic
of Korea
| | - Jisoo Shin
- Department of Biotechnology, Yonsei University, Seoul 120-749, Republic
of Korea
| | - Jung Seung Lee
- Department of Biotechnology, Yonsei University, Seoul 120-749, Republic
of Korea
| | | | | | - Soong Ho Um
- School of Chemical
Engineering and SKKU Advanced Institute of
Nanotechnology (SAINT), Sungkyunkwan University, Suwon 440-746, Republic of Korea
| | - Dong-Ik Kim
- Division of Vascular
Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul 135-710, Republic
of Korea
| | | | - Seung-Woo Cho
- Department of Biotechnology, Yonsei University, Seoul 120-749, Republic
of Korea
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20
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Sayyar B, Dodd M, Marquez-Curtis L, Janowska-Wieczorek A, Hortelano G. Cell-matrix Interactions of Factor IX (FIX)-engineered human mesenchymal stromal cells encapsulated in RGD-alginate vs. Fibrinogen-alginate microcapsules. ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY 2013; 42:102-9. [DOI: 10.3109/21691401.2013.794354] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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21
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McEwan K, Padavan DT, Deng C, Vulesevic B, Kuraitis D, Korbutt GS, Suuronen EJ. Tunable collagen hydrogels are modified by the therapeutic agents they are designed to deliver. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2012; 23:1467-83. [PMID: 21771391 DOI: 10.1163/092050611x584397] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Injectable hydrogels are increasingly being developed for biomedical applications due to their ability to be delivered in a minimally invasive manner. One potential use for such materials is in cell delivery for cardiac regeneration. While the materials' properties are often characterized, how these properties (and in particular gelation) are affected by the addition of the therapeutic agent(s) they are designed to deliver is often overlooked. The aim of this study was to examine the interactive effects between collagen-based hydrogels and different additives (cells and microspheres). The results demonstrated that the incorporation of either cells or microspheres to a collagen hydrogel decreased its gelation time and increased its viscosity. Increased concentrations of the EDC/NHS cross-linker resulted in greater loss of cell viability. However, it was found that this cell loss could be minimized by delivering cells with the cross-linker scavenger glycine. A better understanding of how materials and cells (and other additives) respond to each other will help towards the goal of improving scaffolds being developed for regenerative therapy.
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Affiliation(s)
- Kimberly McEwan
- a Division of Cardiac Surgery, University of Ottawa Heart Institute , 40 Ruskin Street , Ottawa , ON , Canada , K1Y4W7
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22
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Hynd MR, Turner JN, Shain W. Applications of hydrogels for neural cell engineering. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2012; 18:1223-44. [DOI: 10.1163/156856207782177909] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Matthew R. Hynd
- a Laboratory of Nervous System Disorders, Wadsworth Center, P.O. Box 509, Empire State Plaza, Albany, NY 12201-0509, USA
| | - James N. Turner
- b Laboratory of Nervous System Disorders, Wadsworth Center, P.O. Box 509, Empire State Plaza, Albany, NY 12201-0509, USA
| | - William Shain
- c Laboratory of Nervous System Disorders, Wadsworth Center, P.O. Box 509, Empire State Plaza, Albany, NY 12201-0509, USA
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23
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Brunsen A, Ritz U, Mateescu A, Höfer I, Frank P, Menges B, Hofmann A, Rommens PM, Knoll W, Jonas U. Photocrosslinkable dextran hydrogel films as substrates for osteoblast and endothelial cell growth. ACTA ACUST UNITED AC 2012. [DOI: 10.1039/c2jm34006b] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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Abstract
Alginate is a biomaterial that has found numerous applications in biomedical science and engineering due to its favorable properties, including biocompatibility and ease of gelation. Alginate hydrogels have been particularly attractive in wound healing, drug delivery, and tissue engineering applications to date, as these gels retain structural similarity to the extracellular matrices in tissues and can be manipulated to play several critical roles. This review will provide a comprehensive overview of general properties of alginate and its hydrogels, their biomedical applications, and suggest new perspectives for future studies with these polymers.
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25
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Photosensitive controlled release with polyethylene glycol–anthracene modified alginate. Eur J Pharm Biopharm 2011; 79:304-13. [DOI: 10.1016/j.ejpb.2011.03.023] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2010] [Revised: 03/23/2011] [Accepted: 03/25/2011] [Indexed: 11/20/2022]
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26
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Fonseca KB, Bidarra SJ, Oliveira MJ, Granja PL, Barrias CC. Molecularly designed alginate hydrogels susceptible to local proteolysis as three-dimensional cellular microenvironments. Acta Biomater 2011; 7:1674-82. [PMID: 21193068 DOI: 10.1016/j.actbio.2010.12.029] [Citation(s) in RCA: 113] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2010] [Revised: 11/11/2010] [Accepted: 12/22/2010] [Indexed: 11/27/2022]
Abstract
The development of sophisticated three-dimensional (3-D) cell culture microenvironments that recreate some of the complexity of the natural extracellular matrix (ECM) remains a challenging task. Here, the modification of alginate through partial crosslinking with a matrix metalloproteinase (MMP) cleavable peptide (proline-valine-glycine-leucine-isoleucine-glycine, PVGLIG) is described, and its use in the preparation of injectable, in situ crosslinkable hydrogel-like matrices is proposed. PVGLIG-grafted alginates were synthesized by carbodiimide chemistry and characterized. Their biological performance was evaluated by comparing the response of 3-D cultured mesenchymal stem cells (MSCs) to alginate hydrogels containing only cell-adhesion peptides (RGD-alginate) or both peptides (PVGLIG/RGD-alginate). After 1 week, cells remained essentially round within RGD-alginate, while they exhibited an elongated morphology within PVGLIG/RGD-alginate hydrogels, forming cellular networks. This suggests that cells were able to structurally reorganize the matrix, through enzymatic hydrolysis of PVGLIG residues, overcoming biophysical hydrogel resistance. As shown by gelatine-zymography, MSC presented higher activity of MMP-2 when cultured within alginate functionalized with MMP-sensitive peptide, suggesting that the cell's proteolytic phenotype was modulated by the matrix composition. Additionally, PVGLIG/RGD-alginate hydrogels were clearly degraded in cell culture. Taken together, the results demonstrate that the co-incorporation of MMP-labile peptides in cell-adhesive RGD-alginate hydrogels improved their performance as ECM analogues, providing a more dynamic and physiological 3-D cellular microenvironment.
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27
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Jabbari E. Bioconjugation of hydrogels for tissue engineering. Curr Opin Biotechnol 2011; 22:655-60. [PMID: 21306888 DOI: 10.1016/j.copbio.2011.01.003] [Citation(s) in RCA: 62] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2011] [Accepted: 01/18/2011] [Indexed: 02/02/2023]
Abstract
Success of tissue engineered constructs in regenerative medicine is limited by the lack of cellmatrix interactions to guide devleopment of the seeded cells into the desired tissue. This review highlights the most exciting developments in bioconjugation of synthetic hydrogels targeted to tissue engineering. Application of conjugation techniques has resulted in the synthesis of novel biomimetic cell-responsive hydrogels to control the cascade of cell migration, adhesion, survival, differentiation, and maturation to the desired lineage concurrent with matrix remodeling. The future outlook includes developing conjugated patterned hydrogel matrices, developing novel hydrogel matrices to support self-renewal and pluripotency of embryonic and adult stem cells, and merging 3D printing with bioconjugation to fabricate hydrogels with anatomical arrangement of cells and biomolecules.
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Affiliation(s)
- Esmaiel Jabbari
- Biomimetic Materials and Tissue Engineering Laboratory, Department of Chemical Engineering, University of South Carolina, Columbia, SC 29208, USA.
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28
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Bakota EL, Aulisa L, Galler KM, Hartgerink JD. Enzymatic cross-linking of a nanofibrous peptide hydrogel. Biomacromolecules 2010; 12:82-7. [PMID: 21133404 DOI: 10.1021/bm1010195] [Citation(s) in RCA: 72] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The rheological properties of the environment in which a cell lives play a key role in how the cells will respond to that environment and may modify cell proliferation, morphology and differentiation. Effective means of modifying these properties are needed, particularly for peptide hydrogels which are generally relatively weak and soft. In this report we describe the enzymatic cross-linking of a nanofibrous multidomain peptide hydrogel. When this method was used, the storage modulus, G', could be increased to over 4000 Pa without changes in hydrogel concentration and without dramatic changes in nanostructural architecture. Enzymatic cross-linking represents a mild and simple method for increasing the mechanical strength of peptide hydrogels in applications for which the robustness of the gel is essential. This method should be suitable for a broad array of peptide hydrogels containing lysine such as those currently under study by many different groups.
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Affiliation(s)
- Erica L Bakota
- Department of Chemistry, Rice University, 6100 Main Street, Mail Stop 602, Houston, Texas 77005, United States
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29
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Slaughter BV, Khurshid SS, Fisher OZ, Khademhosseini A, Peppas NA. Hydrogels in regenerative medicine. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2009; 21:3307-29. [PMID: 20882499 PMCID: PMC4494665 DOI: 10.1002/adma.200802106] [Citation(s) in RCA: 1738] [Impact Index Per Article: 115.9] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/14/2023]
Abstract
Hydrogels, due to their unique biocompatibility, flexible methods of synthesis, range of constituents, and desirable physical characteristics, have been the material of choice for many applications in regenerative medicine. They can serve as scaffolds that provide structural integrity to tissue constructs, control drug and protein delivery to tissues and cultures, and serve as adhesives or barriers between tissue and material surfaces. In this work, the properties of hydrogels that are important for tissue engineering applications and the inherent material design constraints and challenges are discussed. Recent research involving several different hydrogels polymerized from a variety of synthetic and natural monomers using typical and novel synthetic methods are highlighted. Finally, special attention is given to the microfabrication techniques that are currently resulting in important advances in the field.
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Affiliation(s)
- Brandon V. Slaughter
- Department of Biomedical Engineering, C0800, The University of Texas at
Austin, Austin, TX 78712 (USA)
| | - Shahana S. Khurshid
- Department of Biomedical Engineering, C0800, The University of Texas at
Austin, Austin, TX 78712 (USA)
| | - Omar Z. Fisher
- Department of Biomedical Engineering, C0800, The University of Texas at
Austin, Austin, TX 78712 (USA)
| | - Ali Khademhosseini
- Center for Biomedical Engineering, Department of Medicine, Brigham and
Women’s Hospital, Harvard Medical School, Harvard-MIT Division of Health
Sciences and Technology, Massachusetts, Institute of Technology, Cambridge, MA 02139
(USA)
| | - Nicholas A. Peppas
- Biomaterials, Drug Delivery, Bionanotechnology, and Molecular, Recognition
Laboratories, Department of Chemical Engineering, C0400, The University of Texas at
Austin, Austin, TX 78712 (USA)
- Department of Pharmaceutics, C0400, The University of Texas at Austin,
Austin, TX 78712 (USA)
- Department of Biomedical Engineering, C0800, The University of Texas at
Austin, Austin, TX 78712 (USA)
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30
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Plouffe BD, Brown MA, Iyer RK, Radisic M, Murthy SK. Controlled capture and release of cardiac fibroblasts using peptide-functionalized alginate gels in microfluidic channels. LAB ON A CHIP 2009; 9:1507-10. [PMID: 19458855 DOI: 10.1039/b823523f] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
The utilization of peptide-functionalized hydrogels in combination with a divalent chelator offers an effective methodology for capture and release of cells within microfluidic channels.
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Affiliation(s)
- Brian D Plouffe
- Department of Chemical Engineering, Northeastern University, Boston, Massachusetts 02115, USA
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31
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Kiick KL. Peptide- and protein-mediated assembly of heparinized hydrogels. SOFT MATTER 2008; 4:29-37. [PMID: 19960073 PMCID: PMC2787454 DOI: 10.1039/b711319f] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Polymeric hydrogels have demonstrated significant promise in biomedical applications such as drug delivery and tissue engineering. A continued direction in hydrogel development includes the engineering of the biological responsiveness of these materials, via the inclusion of cell-binding domains and enzyme-sensitive domains. Ligand-receptor interactions offer additional opportunities in the design of responsive hydrogels, and strategies employing protein- polysaccharide interactions as a target may have unique relevance to materials intended to mimic the extracellular matrix (ECM). Accordingly, we have developed approaches for producing hydrogels via noncovalent interactions between heparin and heparin-binding peptides/proteins, and have demonstrated that such matrices are capable of both passive and receptor-mediated growth factor delivery. Further modification of these materials via the integration of these noncovalent strategies with chemical crosslinking methods will expand the range of their potential use and is under exploration. The combination of these approaches offers broad opportunities for the production of responsive matrices for biomedical applications.
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Affiliation(s)
- Kristi L Kiick
- University of Delaware, Department of Materials Science & Engineering, 201 DuPont Hall, Newark, DE 19716 and the Delaware Biotechnology Institute, 15 Innovation Way, Newark DE 19711, USA
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Abstract
[Image: see text] Alginate hydrogels are proving to have a wide applicability as biomaterials. They have been used as scaffolds for tissue engineering, as delivery vehicles for drugs, and as model extracellular matrices for basic biological studies. These applications require tight control of a number of material properties including mechanical stiffness, swelling, degradation, cell attachment, and binding or release of bioactive molecules. Control over these properties can be achieved by chemical or physical modifications of the polysaccharide itself or the gels formed from alginate. The utility of these modified alginate gels as biomaterials has been demonstrated in a number of in vitro and in vivo studies.Micro-CT images of bone-like constructs that result from transplantation of osteoblasts on gels that degrade over a time frame of several months leading to improved bone formation.
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Affiliation(s)
- Alexander D Augst
- Division of Engineering and Applied Sciences, Harvard University, Cambridge, MA, USA.
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