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Xu H, Yan S, Gerhard E, Xie D, Liu X, Zhang B, Shi D, Ameer GA, Yang J. Citric Acid: A Nexus Between Cellular Mechanisms and Biomaterial Innovations. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024:e2402871. [PMID: 38801111 DOI: 10.1002/adma.202402871] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2024] [Revised: 05/07/2024] [Indexed: 05/29/2024]
Abstract
Citrate-based biodegradable polymers have emerged as a distinctive biomaterial platform with tremendous potential for diverse medical applications. By harnessing their versatile chemistry, these polymers exhibit a wide range of material and bioactive properties, enabling them to regulate cell metabolism and stem cell differentiation through energy metabolism, metabonegenesis, angiogenesis, and immunomodulation. Moreover, the recent US Food and Drug Administration (FDA) clearance of the biodegradable poly(octamethylene citrate) (POC)/hydroxyapatite-based orthopedic fixation devices represents a translational research milestone for biomaterial science. POC joins a short list of biodegradable synthetic polymers that have ever been authorized by the FDA for use in humans. The clinical success of POC has sparked enthusiasm and accelerated the development of next-generation citrate-based biomaterials. This review presents a comprehensive, forward-thinking discussion on the pivotal role of citrate chemistry and metabolism in various tissue regeneration and on the development of functional citrate-based metabotissugenic biomaterials for regenerative engineering applications.
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Affiliation(s)
- Hui Xu
- Department of Biomedical Engineering, The Pennsylvania State University, University Park, PA, 16802, USA
| | - Su Yan
- Department of Biomedical Engineering, The Pennsylvania State University, University Park, PA, 16802, USA
| | - Ethan Gerhard
- Department of Biomedical Engineering, The Pennsylvania State University, University Park, PA, 16802, USA
| | - Denghui Xie
- Department of Histology and Embryology, School of Basic Medical Sciences, Department of Orthopedic Surgery, The Third Affiliated Hospital of Southern Medical University, Southern Medical University, Guangzhou, 510515, P. R. China
- Academy of Orthopedics of Guangdong Province, Guangdong Provincial Key Laboratory of Bone and Joint Degeneration Diseases, Guangzhou, 510630, P. R. China
| | - Xiaodong Liu
- Research Center for Industries of the Future, Westlake University, Hangzhou, Zhejiang, 310030, P. R. China
- School of Life Sciences, Westlake University, Hangzhou, Zhejiang, 310030, P. R. China
- Westlake Laboratory of Life Sciences and Biomedicine, Hangzhou, Zhejiang, 310030, P. R. China
- Westlake Institute for Advanced Study, Hangzhou, Zhejiang, 310030, P. R. China
| | - Bing Zhang
- Research Center for Industries of the Future, Westlake University, Hangzhou, Zhejiang, 310030, P. R. China
- School of Life Sciences, Westlake University, Hangzhou, Zhejiang, 310030, P. R. China
- Westlake Laboratory of Life Sciences and Biomedicine, Hangzhou, Zhejiang, 310030, P. R. China
- Westlake Institute for Advanced Study, Hangzhou, Zhejiang, 310030, P. R. China
| | - Dongquan Shi
- Division of Sports Medicine and Adult Reconstructive Surgery, Department of Orthopedic Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, 321 Zhongshan Road, Nanjing, Jiangsu, 210008, P. R. China
| | - Guillermo A Ameer
- Department of Biomedical Engineering, Northwestern University, Evanston, IL, 60208, USA
- Center for Advanced Regenerative Engineering, Northwestern University, Evanston, IL, 60208, USA
- Department of Surgery, Feinberg School of Medicine, Northwestern University, Chicago, IL, 60611, USA
| | - Jian Yang
- Research Center for Industries of the Future, Westlake University, Hangzhou, Zhejiang, 310030, P. R. China
- Biomedical Engineering Program, School of Engineering, Westlake University, Hangzhou, Zhejiang, 310030, P. R. China
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2
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Wienen D, Gries T, Cooper SL, Heath DE. An overview of polyurethane biomaterials and their use in drug delivery. J Control Release 2023; 363:376-388. [PMID: 37734672 DOI: 10.1016/j.jconrel.2023.09.036] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 08/28/2023] [Accepted: 09/18/2023] [Indexed: 09/23/2023]
Abstract
Polyurethanes are a versatile and highly tunable class of materials that possess unique properties including high tensile strength, abrasion and fatigue resistance, and flexibility at low temperatures. The tunability of polyurethane properties has allowed this class of polymers to become ubiquitous in our daily lives in fields as diverse as apparel, appliances, construction, and the automotive industry. Additionally, polyurethanes with excellent biocompatibility and hemocompatibility can be synthesized, enabling their use as biomaterials in the medical field. The tunable nature of polyurethane biomaterials also makes them excellent candidates as drug delivery vehicles, which is the focus of this review. The fundamental idea we aim to highlight in this article is the structure-property-function relationships found in polyurethane systems. Specifically, the chemical structure of the polymer determines its macroscopic properties and dictates the functions for which it will perform well. By exploring the structure-property-function relationships for polyurethanes, we aim to elucidate the fundamental properties that can be tailored to achieve controlled drug release and empower researchers to design new polyurethane systems for future drug delivery applications.
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Affiliation(s)
- David Wienen
- Institute of Textile Technology, RWTH Aachen, Germany
| | - Thomas Gries
- Institute of Textile Technology, RWTH Aachen, Germany
| | - Stuart L Cooper
- Department of Chemical and Biomolecular Engineering, The Ohio State University, USA
| | - Daniel E Heath
- Department of Biomedical Engineering, Graeme Clark Institute, University of Melbourne, Australia.
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3
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Fooladi S, Nematollahi MH, Rabiee N, Iravani S. Bacterial Cellulose-Based Materials: A Perspective on Cardiovascular Tissue Engineering Applications. ACS Biomater Sci Eng 2023. [PMID: 37146213 DOI: 10.1021/acsbiomaterials.3c00300] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
Today, a wide variety of bio- and nanomaterials have been deployed for cardiovascular tissue engineering (TE), including polymers, metal oxides, graphene/its derivatives, organometallic complexes/composites based on inorganic-organic components, among others. Despite several advantages of these materials with unique mechanical, biological, and electrical properties, some challenges still remain pertaining to their biocompatibility, cytocompatibility, and possible risk factors (e.g., teratogenicity or carcinogenicity), restricting their future clinical applications. Natural polysaccharide- and protein-based (nano)structures with the benefits of biocompatibility, sustainability, biodegradability, and versatility have been exploited in the field of cardiovascular TE focusing on targeted drug delivery, vascular grafts, engineered cardiac muscle, etc. The usage of these natural biomaterials and their residues offers several advantages in terms of environmental aspects such as alleviating emission of greenhouse gases as well as the production of energy as a biomass consumption output. In TE, the development of biodegradable and biocompatible scaffolds with potentially three-dimensional structures, high porosity, and suitable cellular attachment/adhesion still needs to be comprehensively studied. In this context, bacterial cellulose (BC) with high purity, porosity, crystallinity, unique mechanical properties, biocompatibility, high water retention, and excellent elasticity can be considered as promising candidate for cardiovascular TE. However, several challenges/limitations regarding the absence of antimicrobial factors and degradability along with the low yield of production and extensive cultivation times (in large-scale production) still need to be resolved using suitable hybridization/modification strategies and optimization of conditions. The biocompatibility and bioactivity of BC-based materials along with their thermal, mechanical, and chemical stability are crucial aspects in designing TE scaffolds. Herein, cardiovascular TE applications of BC-based materials are deliberated, with a focus on the most recent advancements, important challenges, and future perspectives. Other biomaterials with cardiovascular TE applications and important roles of green nanotechnology in this field of science are covered to better compare and comprehensively review the subject. The application of BC-based materials and the collective roles of such biomaterials in the assembly of sustainable and natural-based scaffolds for cardiovascular TE are discussed.
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Affiliation(s)
- Saba Fooladi
- Department of Clinical Biochemistry, Afzalipour Medical School, Kerman University of Medical Sciences, 76169-13555 Kerman, Iran
| | - Mohammad Hadi Nematollahi
- Department of Clinical Biochemistry, Afzalipour Medical School, Kerman University of Medical Sciences, 76169-13555 Kerman, Iran
- Herbal and Traditional Medicines Research Center, Kerman University of Medical Sciences, 76169-13555 Kerman, Iran
| | - Navid Rabiee
- Centre for Molecular Medicine and Innovative Therapeutics, Murdoch University, Perth, Western Australia 6150, Australia
- School of Engineering, Macquarie University, Sydney, New South Wales 2109, Australia
| | - Siavash Iravani
- Faculty of Pharmacy and Pharmaceutical Sciences, Isfahan University of Medical Sciences, 81746-73461 Isfahan, Iran
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4
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Yadav U, Verma V. Halloysite nanoclay reinforced hydroxyapatite porous scaffold for hard tissue regeneration. J Mech Behav Biomed Mater 2023; 140:105626. [PMID: 36739825 DOI: 10.1016/j.jmbbm.2022.105626] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Revised: 12/06/2022] [Accepted: 12/12/2022] [Indexed: 01/21/2023]
Abstract
Hydroxyapatite (HAP), a natural constituent of bone tissue is commonly used for the clinical treatment of bone defects due to its similar structure with bone and excellent biocompatibility. However, the processing exertion, poor osteoinductive capability and poor mechanical strength of HAP needs further addressing for its immense implementation in tissue engineering. Different approaches have been reported to escalate the mechanical hardness and osteogenic potential of HAP. In the present work, halloysite nanoclay (HNC) and sericin protein were used for better mechanical and osteogenic properties, respectively. Halloysite nanoclay (HNC, 1.0-4.0%) was used to reinforce hydroxyapatite (HAP) and the mechanical strength of nanocomposite scaffolds were evaluated. After surface modification of nanocomposite scaffolds with 1.0% silk sericin protein; physical properties like microstructure, porosity, swelling ratio and degradation rate were evaluated. Cell morphology, cytocompatibility and alkaline phosphatase (ALP) activity were assessed using MG 63 osteoblast cell lines. HAP reinforced with 4% HNC (HAP@4) showed a significant increase (199 MPa) in young modulus as compared to pure HAP. HAP reinforced with 2% HNC (HAP@2) and 4% HNC (HAP@4) showed a significant decrease in porosity as well as degradation rate than pure HAP but no significant difference was observed in swelling ratio. The scanning electron microscope (SEM) images of the scaffolds showed porous architecture. Remarkably, the incorporation of HNC in HAP enhanced the cytocompatibility as well as ALP activity in comparison to pure HAP. Overall, these results suggested that halloysite nanoclay reinforced HAP scaffold could be an auspicious alternative for bone tissue regeneration.
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Affiliation(s)
- Umakant Yadav
- Department of Materials Sciences and Engineering, Indian Institute of Technology, Kanpur, Uttar Pradesh, 208016, India
| | - Vivek Verma
- Department of Materials Sciences and Engineering, Indian Institute of Technology, Kanpur, Uttar Pradesh, 208016, India.
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5
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Motameni A, Çardaklı İS, Gürbüz R, Alshemary AZ, Razavi M, Farukoğlu ÖC. Bioglass-polymer composite scaffolds for bone tissue regeneration: a review of current trends. INT J POLYM MATER PO 2023. [DOI: 10.1080/00914037.2023.2186864] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/17/2023]
Affiliation(s)
- Ali Motameni
- Department of Metallurgical and Materials Engineering, Middle East Technical University, Ankara, Turkey
- Department of Mechanical Engineering, Çankaya University, Ankara, Turkey
| | - İsmail Seçkin Çardaklı
- Department of Metallurgical and Materials Engineering, Atatürk University, Erzurum, Turkey
| | - Rıza Gürbüz
- Department of Metallurgical and Materials Engineering, Middle East Technical University, Ankara, Turkey
| | - Ammar Z. Alshemary
- Department of Chemistry, College of Science and Technology, Wenzhou-Kean University, Wenzhou, China
- Biomedical Engineering Department, Al-Mustaqbal University College, Hillah, Iraq
| | - Mehdi Razavi
- Biionix™ (Bionic Materials, Implants & Interfaces) Cluster, Department of Internal Medicine, College of Medicine, University of Central Florida, Orlando, FL, USA
- Department of Material Sciences and Engineering, University of Central Florida, Orlando, FL, USA
| | - Ömer Can Farukoğlu
- Department of Mechanical Engineering, Çankaya University, Ankara, Turkey
- Department of Manufacturing Engineering, Gazi University, Ankara, Turkey
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6
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Development of stimulus-sensitive electrospun membranes based on novel biodegradable segmented polyurethane as triggered delivery system for doxorubicin. BIOMATERIALS ADVANCES 2022; 136:212769. [PMID: 35929309 DOI: 10.1016/j.bioadv.2022.212769] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Revised: 03/10/2022] [Accepted: 03/15/2022] [Indexed: 12/19/2022]
Abstract
In this work, redox-sensitive polyurethane urea (PUU) based electrospun membranes have been exploited to chemically tether a pH-sensitive doxorubicin derivative achieved by linking a lipoyl hydrazide to the drug via a hydrazone linkage. First, the lipoyl-hydrazone-doxorubicin derivative labelled as LA-Hy-Doxo has been synthesized and characterized. Then, the molecule has been tethered, via a thiol-disulfide exchange reaction, to the redox-sensitive PUU (PolyCEGS) electrospun membrane. The redox-sensitive PolyCEGS PUU has been produced by using PCL-PEG-PCL polyol and glutathione-tetramethyl ester (GSSG-OMe)4 as a chain extender. The LA-Hy-Doxo tethered electrospun membrane has showed a dually controlled release triggered by acidic and reducing conditions, producing a significant cytotoxic effect in human breast cancer cell lines (MCF-7) which has validated the system for the post-surgical treatment of solid tumors to contrast recurrence.
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7
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Pedersen DD, Kim S, Wagner WR. Biodegradable polyurethane scaffolds in regenerative medicine: Clinical translation review. J Biomed Mater Res A 2022; 110:1460-1487. [PMID: 35481723 DOI: 10.1002/jbm.a.37394] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Revised: 04/07/2022] [Accepted: 04/09/2022] [Indexed: 12/14/2022]
Abstract
Early explorations of tissue engineering and regenerative medicine concepts commonly utilized simple polyesters such as polyglycolide, polylactide, and their copolymers as scaffolds. These biomaterials were deemed clinically acceptable, readily accessible, and provided processability and a generally known biological response. With experience and refinement of approaches, greater control of material properties and integrated bioactivity has received emphasis and a broadened palette of synthetic biomaterials has been employed. Biodegradable polyurethanes (PUs) have emerged as an attractive option for synthetic scaffolds in a variety of tissue applications because of their flexibility in molecular design and ability to fulfill mechanical property objectives, particularly in soft tissue applications. Biodegradable PUs are highly customizable based on their composition and processability to impart tailored mechanical and degradation behavior. Additionally, bioactive agents can be readily incorporated into these scaffolds to drive a desired biological response. Enthusiasm for biodegradable PU scaffolds has soared in recent years, leading to rapid growth in the literature documenting novel PU chemistries, scaffold designs, mechanical properties, and aspects of biocompatibility. Despite the enthusiasm in the field, there are still few examples of biodegradable PU scaffolds that have achieved regulatory approval and routine clinical use. However, there is a growing literature where biodegradable PU scaffolds are being specifically developed for a wide range of pathologies and where relevant pre-clinical models are being employed. The purpose of this review is first to highlight examples of clinically used biodegradable PU scaffolds, and then to summarize the growing body of reports on pre-clinical applications of biodegradable PU scaffolds.
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Affiliation(s)
- Drake D Pedersen
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA.,Department of Bioengineering, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Seungil Kim
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA.,Department of Bioengineering, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - William R Wagner
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA.,Department of Bioengineering, University of Pittsburgh, Pittsburgh, Pennsylvania, USA.,Department of Chemical Engineering, University of Pittsburgh, Pittsburgh, Pennsylvania, USA.,Department of Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
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8
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Xu C, Hong Y. Rational design of biodegradable thermoplastic polyurethanes for tissue repair. Bioact Mater 2021; 15:250-271. [PMID: 35386346 PMCID: PMC8940769 DOI: 10.1016/j.bioactmat.2021.11.029] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 11/09/2021] [Accepted: 11/24/2021] [Indexed: 12/25/2022] Open
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9
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Vakil AU, Petryk NM, Shepherd E, Monroe MBB. Biostable Shape Memory Polymer Foams for Smart Biomaterial Applications. Polymers (Basel) 2021; 13:polym13234084. [PMID: 34883587 PMCID: PMC8658902 DOI: 10.3390/polym13234084] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Revised: 11/15/2021] [Accepted: 11/17/2021] [Indexed: 11/16/2022] Open
Abstract
Polyurethane foams provide a wide range of applications as a biomaterial system due to the ability to tune their physical, chemical, and biological properties to meet the requirements of the intended applications. Another key parameter that determines the usability of this biomaterial is its degradability under body conditions. Several current approaches focus on slowing the degradation rate for applications that require the implant to be present for a longer time frame (over 100 days). Here, biostable shape memory polymer (SMP) foams were synthesized with added ether-containing monomers to tune the degradation rates. The physical, thermal and shape memory properties of these foams were characterized along with their cytocompatibility and blood interactions. Degradation profiles were assessed in vitro in oxidative (3% H2O2; real-time) and hydrolytic media (0.1 M NaOH; accelerated) at 37 °C. The resulting foams had tunable degradation rates, with up 15% mass remaining after 108 days, and controlled erosion profiles. These easy-to-use, shape-filling SMP foams have the potential for various biomaterial applications where longer-term stability without the need for implant removal is desired.
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10
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Palumbo FS, Federico S, Pitarresi G, Fiorica C, Giammona G. Synthesis and characterization of redox-sensitive polyurethanes based on l-glutathione oxidized and poly(ether ester) triblock copolymers. REACT FUNCT POLYM 2021. [DOI: 10.1016/j.reactfunctpolym.2021.104986] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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11
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Wandel MB, Bell CA, Yu J, Arno MC, Dreger NZ, Hsu YH, Pitto-Barry A, Worch JC, Dove AP, Becker ML. Concomitant control of mechanical properties and degradation in resorbable elastomer-like materials using stereochemistry and stoichiometry for soft tissue engineering. Nat Commun 2021; 12:446. [PMID: 33469013 PMCID: PMC7815890 DOI: 10.1038/s41467-020-20610-5] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2018] [Accepted: 12/07/2020] [Indexed: 11/24/2022] Open
Abstract
Complex biological tissues are highly viscoelastic and dynamic. Efforts to repair or replace cartilage, tendon, muscle, and vasculature using materials that facilitate repair and regeneration have been ongoing for decades. However, materials that possess the mechanical, chemical, and resorption characteristics necessary to recapitulate these tissues have been difficult to mimic using synthetic resorbable biomaterials. Herein, we report a series of resorbable elastomer-like materials that are compositionally identical and possess varying ratios of cis:trans double bonds in the backbone. These features afford concomitant control over the mechanical and surface eroding degradation properties of these materials. We show the materials can be functionalized post-polymerization with bioactive species and enhance cell adhesion. Furthermore, an in vivo rat model demonstrates that degradation and resorption are dependent on succinate stoichiometry in the elastomers and the results show limited inflammation highlighting their potential for use in soft tissue regeneration and drug delivery. The creation of biomaterials which are resorbable and have biomimetic mechanical properties is key to successful tissue engineering. Here the authors report on the creation of a new biopolymer where the mechanical properties can be tuned by changing the ratios of cis:trans double bonds in the backbone.
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Affiliation(s)
- Mary Beth Wandel
- Department of Polymer Science, The University of Akron, Akron, OH, 44325, USA
| | - Craig A Bell
- Department of Chemistry, The University of Warwick, Coventry, CV4 7AL, UK.,Centre for Advanced Imaging, The University of Queensland, St Lucia, QLD, 4072, Australia.,Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, St Lucia, QLD, 4072, Australia
| | - Jiayi Yu
- Department of Polymer Science, The University of Akron, Akron, OH, 44325, USA
| | - Maria C Arno
- School of Chemistry, The University of Birmingham, Edgbaston, Birmingham, B15 2TT, UK
| | - Nathan Z Dreger
- Department of Polymer Science, The University of Akron, Akron, OH, 44325, USA
| | - Yen-Hao Hsu
- Department of Polymer Science, The University of Akron, Akron, OH, 44325, USA
| | - Anaïs Pitto-Barry
- Department of Chemistry, The University of Warwick, Coventry, CV4 7AL, UK
| | - Joshua C Worch
- School of Chemistry, The University of Birmingham, Edgbaston, Birmingham, B15 2TT, UK
| | - Andrew P Dove
- School of Chemistry, The University of Birmingham, Edgbaston, Birmingham, B15 2TT, UK.
| | - Matthew L Becker
- Department of Chemistry, Mechanical Engineering and Materials Science, Orthopaedic Surgery, Duke University, Durham, NC, 20899, USA.
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12
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Farzan A, Borandeh S, Zanjanizadeh Ezazi N, Lipponen S, Santos HA, Seppälä J. 3D scaffolding of fast photocurable polyurethane for soft tissue engineering by stereolithography: Influence of materials and geometry on growth of fibroblast cells. Eur Polym J 2020. [DOI: 10.1016/j.eurpolymj.2020.109988] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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13
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Xiao S, Zhao T, Wang J, Wang C, Du J, Ying L, Lin J, Zhang C, Hu W, Wang L, Xu K. Gelatin Methacrylate (GelMA)-Based Hydrogels for Cell Transplantation: an Effective Strategy for Tissue Engineering. Stem Cell Rev Rep 2020; 15:664-679. [PMID: 31154619 DOI: 10.1007/s12015-019-09893-4] [Citation(s) in RCA: 174] [Impact Index Per Article: 43.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Gelatin methacrylate (GelMA)-based hydrogels are gaining a great deal of attention as potentially implantable materials in tissue engineering applications because of their biofunctionality and mechanical tenability. Since different natural tissues respond differently to mechanical stresses, an ideal implanted material would closely match the mechanical properties of the target tissue. In this regard, applications employing GelMA hydrogels are currently limited by the low mechanical strength and biocompatibility of GelMA. Therefore, this review focuses on modifications made to GelMA hydrogels to make them more suitable for tissue engineering applications. A large number of reports detail rational synthetic processes for GelMA or describe the incorporation of various biomaterials into GelMA hydrogels to tune their various properties, e.g., physical strength, chemical properties, conductivity, and porosity, and to promote cell loading and accelerate tissue repair. A novel strategy for repairing tissue injuries, based on the transplantation of cell-loaded GelMA scaffolds, is examined and its advantages and challenges are summarized. GelMA-cell combinations play a critical and pioneering role in this process and could potentially accelerate the development of clinically relevant applications.
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Affiliation(s)
- Shining Xiao
- Department of Orthopedic Surgery, the Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310009, China
| | - Tengfei Zhao
- Department of Orthopedic Surgery, the Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310009, China
| | - Jingkai Wang
- Department of Orthopedic Surgery, the Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310009, China
| | - Chenggui Wang
- Department of Orthopedic Surgery, the Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310009, China
| | - Jiangnan Du
- Department of Orthopedic Surgery, the Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310009, China
| | - Liwei Ying
- Department of Orthopedic Surgery, the Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310009, China
| | - Jiangtao Lin
- Zhejiang University-University of Edinburgh Institute, Zhejiang University, Zhejiang, 310058, Hangzhou, China
| | - Caihua Zhang
- Department of Orthopedic Surgery, the Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310009, China
| | - Wanglu Hu
- Department of Orthopedic Surgery, the Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310009, China
| | - Linlin Wang
- Department of Basic Medicine Sciences, School of Medicine, Zhejiang University, Hangzhou, 310058, China.
| | - Kan Xu
- Department of Orthopedic Surgery, the Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310009, China.
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14
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Yadav U, Mishra H, Singh V, Kashyap S, Srivastava A, Yadav S, Saxena PS. Enhanced Osteogenesis by Molybdenum Disulfide Nanosheet Reinforced Hydroxyapatite Nanocomposite Scaffolds. ACS Biomater Sci Eng 2019; 5:4511-4521. [PMID: 33438416 DOI: 10.1021/acsbiomaterials.9b00227] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The advances in the arena of biomedical engineering enable us to fabricate novel biomaterials that provide a suitable platform for rapid bone regeneration. Herein, we have investigated the in vitro and in vivo osteogenic differentiation, proliferation, and bone regeneration capability of molybdenum disulfide nanosheets (MoS2NSs) reinforced HAP nanocomposite scaffolds. The MG-63 cells were incubated with HAP and HAP/MoS2NSs nanocomposite and followed for various cellular activities. The cells incubated with HAP@2 shows higher cell adhesion, cell proliferation, and alkaline phosphatase activity (ALP) in contrast to HAP. The in vivo and in vitro results of the increased ALP level confirm that HAP@2 promotes osteogenic differentiation. This improved osteogenesis was validated with upregulation of osteogenic marker viz. transcription factor, RUNX-2 (∼34 fold), collagen-1 (∼15 fold), osteopontin (∼11 fold), osteocalcin (∼20 fold), and bone morphogenetic protein-2 (∼12 fold) after 12 week postimplantation in comparison to drilled. The X-ray imaging demonstrates that HAP@2 implants promote rapid osteogenesis and bioresorbability than HAP and drilled. The outcomes of the present study provide a promising tool for the regeneration of bone deformities, without using any external growth factor.
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15
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D'Amore A, Luketich SK, Hoff R, Ye SH, Wagner WR. Blending Polymer Labile Elements at Differing Scales to Affect Degradation Profiles in Heart Valve Scaffolds. Biomacromolecules 2019; 20:2494-2505. [PMID: 31083976 DOI: 10.1021/acs.biomac.9b00189] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
After more than 22 years of research challenges and innovation, the heart valve tissue engineering paradigm still attracts attention as an approach to overcome limitations which exist with clinically utilized mechanical or bioprosthetic heart valves. Despite encouraging results, delayed translation can be attributed to limited knowledge on the concurrent mechanisms of biomaterial degradation in vivo, host inflammatory response, cell recruitment, and de novo tissue elaboration. This study aimed to reduce this gap by evaluating three alternative levels at which lability could be incorporated into candidate polyurethane materials electroprocessed into a valve scaffold. Specifically, polyester and polycarbonate labile soft segment diols were reacted into thermoplastic elastomeric polyurethane ureas that formed scaffolds where (1) a single polyurethane containing both of the two diols in the polymer backbone was synthesized and processed, (2) two polyurethanes were physically blended, one with exclusively polycarbonate and one with exclusively polyester diols, followed by processing of the blend, and (3) the two polyurethane types were concurrently processed to form individual fiber populations in a valve scaffold. The resulting valve scaffolds were characterized in terms of their mechanics before and after exposure to varying periods of pulsatile flow in an enzymatic (lipase) buffer solution. The results showed that valve scaffolds made from the first type of polymer and processing combination experienced more extensive degradation. This approach, although demonstrated with polyurethane scaffolds, can generally be translated to investigate biomaterial approaches where labile elements are introduced at different structural levels to alter degradation properties while largely preserving the overall chemical composition and initial mechanical behavior.
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Lobo AO, Afewerki S, de Paula MMM, Ghannadian P, Marciano FR, Zhang YS, Webster TJ, Khademhosseini A. Electrospun nanofiber blend with improved mechanical and biological performance. Int J Nanomedicine 2018; 13:7891-7903. [PMID: 30538466 PMCID: PMC6255114 DOI: 10.2147/ijn.s175619] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Background Here, electrospun fibers based on a blend of polycaprolactone (PCL), poly(ethylene glycol) (PEG), and gelatin methacryloyl (GelMA) were developed. The careful choice of this polymer combination allowed for the preparation of a biomaterial that preserved the mechanical strength of PCL, while at the same time improving the hydrophilicity of the blended material and human osteoblast maturation. Methods The morphology, chemical structure, wettability, and mechanical properties before and after UV photocrosslinking were evaluated. Furthermore, human osteoblasts (hFOB) were cultivated for up to 21 days on the scaffolds, and their potential to upregulate cell proliferation, alkaline phosphatase (ALP) activity, and calcium deposition were investigated. Results Contact angle measurement results showed that the developed scaffolds presented hydrophilic properties after PEG and GelMA incorporation before (25°) and after UV photocross-linking (69°) compared to pure PCL (149°). PCL:PEG:GelMA-UV displayed a slight increase in mechanical strength (elastic modulus ~37 MPa) over PCL alone (~33 MPa). Normally, an increase in strength of fibers leads to a decrease in elongation at break, due to the material becoming less deformable and stiffer, thus leading to breaks at low strain. This behavior was observed by comparing PCL (elongation at break ~106%) and PCL:PEG:GelMA-UV (~50%). Moreover, increases in ALP activity (10-fold at day 14) and calcium deposition (1.3-fold at day 21) by hFOBs were detected after PEG and GelMA incorporation after UV photocross-linking compared to pure PCL. Ultrathin and hydrophilic fibers were obtained after PEG and GelMA incorporation after UV photocrosslinking, but the strength of PCL was maintained. Interestingly, those ultrathin fiber characteristics improved hFOB functions. Conclusion These findings appear promising for the use of these electrospun scaffolds, based on the combination of polymers used here for numerous orthopedic applications.
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Affiliation(s)
- Anderson Oliveira Lobo
- LIMAV-Interdisciplinary Laboratory for Advanced Materials, PPGCM-Materials Science and Engineering Graduate Program, UFPI-Federal University of Piauí, Teresina, Piauí, CEP 64049-550, Brazil,.,Institute of Science and Technology, Brasil University, São Paulo, CEP 08230-030, Brazil, .,Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA 02139, USA, , .,Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA, ,
| | - Samson Afewerki
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA 02139, USA, , .,Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA, ,
| | | | - Paria Ghannadian
- Department of Chemical Engineering, Northeastern University, Boston, MA 02115, USA
| | - Fernanda Roberta Marciano
- Institute of Science and Technology, Brasil University, São Paulo, CEP 08230-030, Brazil, .,Department of Chemical Engineering, Northeastern University, Boston, MA 02115, USA
| | - Yu Shrike Zhang
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA 02139, USA, , .,Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA, ,
| | - Thomas Jay Webster
- Department of Chemical Engineering, Northeastern University, Boston, MA 02115, USA
| | - Ali Khademhosseini
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA 02139, USA, , .,Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA, , .,Department of Bioengineering, Department of Chemical and Biomolecular Engineering, Henry Samueli School of Engineering and Applied Sciences, University of California-Los Angeles, Los Angeles, CA 90095, USA.,Department of Radiology, David Geffen School of Medicine, University of California-Los Angeles, Los Angeles, CA 90095, USA.,Center for Minimally Invasive Therapeutics (C-MIT), University of California-Los Angeles, Los Angeles, CA 90095, USA.,California NanoSystems Institute (CNSI), University of California-Los Angeles, Los Angeles, CA 90095, USA.,Department of Bioindustrial Technologies, Konkuk University, Seoul 143-701, Republic of Korea
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Zhu Q, Li X, Fan Z, Xu Y, Niu H, Li C, Dang Y, Huang Z, Wang Y, Guan J. Biomimetic polyurethane/TiO 2 nanocomposite scaffolds capable of promoting biomineralization and mesenchymal stem cell proliferation. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2018; 85:79-87. [PMID: 29407160 PMCID: PMC5805475 DOI: 10.1016/j.msec.2017.12.008] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2017] [Revised: 08/24/2017] [Accepted: 12/07/2017] [Indexed: 12/24/2022]
Abstract
Scaffolds with extracellular matrix-like fibrous morphology, suitable mechanical properties, biomineralization capability, and excellent cytocompatibility are desired for bone regeneration. In this work, fibrous and degradable poly(ester urethane)urea (PEUU) scaffolds reinforced with titanium dioxide nanoparticles (nTiO2) were fabricated to possess these properties. To increase the interfacial interaction between PEUU and nTiO2, poly(ester urethane) (PEU) was grafted onto the nTiO2. The scaffolds were fabricated by electrospinning and exhibited fiber diameter of <1μm. SEM and EDX mapping results demonstrated that the PEU modified nTiO2 was homogeneously distributed in the fibers. In contrast, severe agglomeration was found in the scaffolds with unmodified nTiO2. PEU modified nTiO2 significantly increased Young's modulus and tensile stress of the PEUU scaffolds while unmodified nTiO2 significantly decreased Young's modulus and tensile stress. The greatest reinforcement effect was observed for the scaffold with 1:1 ratio of PEUU and PEU modified nTiO2. When incubating in the simulated body fluid over an 8-week period, biomineralization was occurred on the fibers. The scaffolds with PEU modified nTiO2 showed the highest Ca and P deposition than pure PEUU scaffold and PEUU scaffold with unmodified nTiO2. To examine scaffold cytocompatibility, bone marrow-derived mesenchymal stem cells were cultured on the scaffold. The PEUU scaffold with PEU modified nTiO2 demonstrated significantly higher cell proliferation compared to pure PEUU scaffold and PEUU scaffold with unmodified nTiO2. The above results demonstrate that the developed fibrous nanocomposite scaffolds have potential for bone tissue regeneration.
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Affiliation(s)
- Qingxia Zhu
- Department of Materials Science and Engineering, The Ohio State University, 2041 College Road, Columbus, OH 43210, USA; Department of Materials Science and Engineering, Jingdezhen Ceramic Institute, Jiangxi 333001, China
| | - Xiaofei Li
- Department of Materials Science and Engineering, The Ohio State University, 2041 College Road, Columbus, OH 43210, USA
| | - Zhaobo Fan
- Department of Materials Science and Engineering, The Ohio State University, 2041 College Road, Columbus, OH 43210, USA
| | - Yanyi Xu
- Department of Materials Science and Engineering, The Ohio State University, 2041 College Road, Columbus, OH 43210, USA
| | - Hong Niu
- Department of Materials Science and Engineering, The Ohio State University, 2041 College Road, Columbus, OH 43210, USA
| | - Chao Li
- Department of Materials Science and Engineering, The Ohio State University, 2041 College Road, Columbus, OH 43210, USA
| | - Yu Dang
- Department of Materials Science and Engineering, The Ohio State University, 2041 College Road, Columbus, OH 43210, USA
| | - Zheng Huang
- Department of Materials Science and Engineering, The Ohio State University, 2041 College Road, Columbus, OH 43210, USA
| | - Yun Wang
- Division of Periodontology, The Ohio State University, 305 W. 12th Avenue, Columbus, OH 43210, USA
| | - Jianjun Guan
- Department of Materials Science and Engineering, The Ohio State University, 2041 College Road, Columbus, OH 43210, USA.
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Heterogeneous electrospun polycaprolactone/polyethylene glycol membranes with improved wettability, biocompatibility, and mineralization. Colloids Surf A Physicochem Eng Asp 2017. [DOI: 10.1016/j.colsurfa.2017.01.054] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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Sears NA, Pena-Galea G, Cereceres SN, Cosgriff-Hernandez E. Hybrid polyurea elastomers with enzymatic degradation and tunable mechanical properties. J Tissue Eng 2016; 7:2041731416679363. [PMID: 27994846 PMCID: PMC5153027 DOI: 10.1177/2041731416679363] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2016] [Accepted: 10/25/2016] [Indexed: 11/15/2022] Open
Abstract
Herein, we report on the synthesis and characterization of enzymatically labile polyureas for use as a tissue-engineered ligament scaffold. Polyureas were selected due to their excellent tensile properties, fatigue resistance, and highly tunable nature. Incorporation of a collagenase-sensitive peptide into the backbone of the polyurea provided a means to confer cell-responsive degradation to the synthetic polymer. Chemical, morphological, and mechanical testing were used to confirm incorporation of the peptide and characterize polyurea films. Notably, the incorporation of the peptide resulted in an increase in modulus, elongation, and tensile strength. This was attributed to an increase in phase mixing and an increase in hydrogen bonding between the hard and soft segments. Candidate polyureas with varying levels of collagen-mimetic peptide (0%, 10%, 20%) were then subjected to degradation in collagenase media or buffer at 37°C over 4 weeks. Statistically significant decreases in strength and elongation were observed in polyureas with 20% peptide content after collagenase treatment, whereas specimens in phosphate-buffered saline showed no statistically significant difference. These observations confirmed that enzyme-specific degradation was conferred to the polyurea. Overall, these polyureas hold great promise as a material for ligament reconstruction due to the promising mechanical properties and potential for cell-mediated degradation.
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Affiliation(s)
- Nicholas A Sears
- Department of Biomedical Engineering, Texas A&M University, College Station, TX, USA
| | - Geraldine Pena-Galea
- Department of Biomedical Engineering, Texas A&M University, College Station, TX, USA
| | - Stacy N Cereceres
- Department of Biomedical Engineering, Texas A&M University, College Station, TX, USA
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21
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Liu D, Wu GM, Kong ZW. Preparation and characterization of a polydimethylsiloxane-modified, epoxy-resin-based polyol dispersion and its crosslinked films. J Appl Polym Sci 2016. [DOI: 10.1002/app.44342] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Di Liu
- Institute of Chemical Industry of Forest Products, Chinese Academy of Forestry, Key Laboratory of Biomass Energy and Material of Jiangsu Province, Key and Open Laboratory on Forest Chemical Engineering, State Forestry Administration, National Engineering Laboratory for Biomass Chemical Utilization; Nanjing 210042 China
| | - Guo-Min Wu
- Institute of Chemical Industry of Forest Products, Chinese Academy of Forestry, Key Laboratory of Biomass Energy and Material of Jiangsu Province, Key and Open Laboratory on Forest Chemical Engineering, State Forestry Administration, National Engineering Laboratory for Biomass Chemical Utilization; Nanjing 210042 China
- Research Institute of New Technology, Chinese Academy of Forestry; Beijing 10091 China
| | - Zhen-Wu Kong
- Institute of Chemical Industry of Forest Products, Chinese Academy of Forestry, Key Laboratory of Biomass Energy and Material of Jiangsu Province, Key and Open Laboratory on Forest Chemical Engineering, State Forestry Administration, National Engineering Laboratory for Biomass Chemical Utilization; Nanjing 210042 China
- Research Institute of New Technology, Chinese Academy of Forestry; Beijing 10091 China
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22
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Xu S, Xia J, Ye S, Zhao M, Wang B, Yang L, Wu J, Fu S. Preparation and characterization of electrospun poly(ε-caprolactone)-pluronic-poly(ε-caprolactone)-based polyurethane nanofibers. J Appl Polym Sci 2016. [DOI: 10.1002/app.43643] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Shan Xu
- Department of Oncology; The First Affiliated Hospital of Sichuan Medical University, Sichuan Medical University; Luzhou 646000 People's Republic of China
| | - Jiyi Xia
- Department of Science and Technology; Sichuan Medical University; Luzhou 646000 People's Republic of China
| | - Sujuan Ye
- Department of Oncology; The First Affiliated Hospital of Sichuan Medical University, Sichuan Medical University; Luzhou 646000 People's Republic of China
| | - Ming Zhao
- Department of Oncology; The First Affiliated Hospital of Sichuan Medical University, Sichuan Medical University; Luzhou 646000 People's Republic of China
| | - Biqiong Wang
- Department of Oncology; The First Affiliated Hospital of Sichuan Medical University, Sichuan Medical University; Luzhou 646000 People's Republic of China
| | - Linglin Yang
- Department of Oncology; The First Affiliated Hospital of Sichuan Medical University, Sichuan Medical University; Luzhou 646000 People's Republic of China
| | - Jingbo Wu
- Department of Oncology; The First Affiliated Hospital of Sichuan Medical University, Sichuan Medical University; Luzhou 646000 People's Republic of China
| | - Shaozhi Fu
- Department of Oncology; The First Affiliated Hospital of Sichuan Medical University, Sichuan Medical University; Luzhou 646000 People's Republic of China
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23
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Su WF, Ho CC, Shih TH, Wang CH, Yeh CH. Exceptional biocompatibility of 3D fibrous scaffold for cardiac tissue engineering fabricated from biodegradable polyurethane blended with cellulose. INT J POLYM MATER PO 2016. [DOI: 10.1080/00914037.2016.1157802] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Wei-Fang Su
- Department of Materials Science and Engineering, National Taiwan University, Taipei, Taiwan
- Molecular Image Center, National Taiwan University, Taipei, Taiwan
- Institute of Polymer Science and Engineering, National Taiwan University, Taipei, Taiwan
| | - Chun-Chih Ho
- Department of Materials Science and Engineering, National Taiwan University, Taipei, Taiwan
- Molecular Image Center, National Taiwan University, Taipei, Taiwan
| | - Tzu-Hsiang Shih
- Institute of Polymer Science and Engineering, National Taiwan University, Taipei, Taiwan
| | - Chen-Hua Wang
- Department of Materials Science and Engineering, National Taiwan University, Taipei, Taiwan
- Molecular Image Center, National Taiwan University, Taipei, Taiwan
| | - Chun-Hao Yeh
- Department of Materials Science and Engineering, National Taiwan University, Taipei, Taiwan
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24
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Savan EK, Paşahan A, Aksoy B, Güngör Ö, Köytepe S, Seçkin T. Preparation and properties of selective polyurethane films and their use for the development of biomedical dopamine sensor. INT J POLYM MATER PO 2015. [DOI: 10.1080/00914037.2015.1129952] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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25
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Uchida N, Sivaraman S, Amoroso NJ, Wagner WR, Nishiguchi A, Matsusaki M, Akashi M, Nagatomi J. Nanometer-sized extracellular matrix coating on polymer-based scaffold for tissue engineering applications. J Biomed Mater Res A 2015; 104:94-103. [PMID: 26194176 DOI: 10.1002/jbm.a.35544] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2015] [Revised: 07/12/2015] [Accepted: 07/16/2015] [Indexed: 01/05/2023]
Abstract
Surface modification can play a crucial role in enhancing cell adhesion to synthetic polymer-based scaffolds in tissue engineering applications. Here, we report a novel approach for layer-by-layer (LbL) fabrication of nanometer-size fibronectin and gelatin (FN-G) layers on electrospun fibrous poly(carbonate urethane)urea (PCUU) scaffolds. Alternate immersions into the solutions of fibronectin and gelatin provided thickness-controlled FN-G nano-layers (PCUU(FN-G) ) which maintained the scaffold's 3D structure and width of fibrous bundle of PCUU as evidenced by scanning electron miscroscopy. The PCUU(FN-G) scaffold improved cell adhesion and proliferation of bladder smooth muscles (BSMCs) when compared to uncoated PCUU. The high affinity of PCUU(FN-G) for cells was further demonstrated by migration of adherent BSMCs from culture plates to the scaffold. Moreover, the culture of UROtsa cells, human urothelium-derived cell line, on PCUU(FN-G) resulted in an 11-15 μm thick multilayered cell structure with cell-to-cell contacts although many UROtsa cells died without forming cell connections on PCUU. Together these results indicate that this approach will aid in advancing the technology for engineering bladder tissues in vitro. Because FN-G nano-layers formation is based on nonspecific physical adsorption of fibronectin onto polymer and its subsequent interactions with gelatin, this technique may be applicable to other polymer-based scaffold systems for various tissue engineering/regenerative medicine applications.
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Affiliation(s)
- Noriyuki Uchida
- Department of Chemistry and Biotechnology, School of Engineering, the University of Tokyo, 7-3-1 Hongo, Bunkyo-Ku, Tokyo, 113-8656, Japan.,RIKEN Center for Emergent Matter Science, 2-1 Hirosawa, Wako, Saitama, 351-0198, Japan
| | - Srikanth Sivaraman
- Department of Bioengineering, 301 Rhodes Engineering Research Center, Clemson University, Clemson, South Carolina, 29634-0905
| | - Nicholas J Amoroso
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, 15219
| | - William R Wagner
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, 15219
| | - Akihiro Nishiguchi
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University 2-1 Yamada-Oka Suita, Osaka, 565-0871, Japan
| | - Michiya Matsusaki
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University 2-1 Yamada-Oka Suita, Osaka, 565-0871, Japan
| | - Mitsuru Akashi
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University 2-1 Yamada-Oka Suita, Osaka, 565-0871, Japan
| | - Jiro Nagatomi
- Department of Bioengineering, 301 Rhodes Engineering Research Center, Clemson University, Clemson, South Carolina, 29634-0905
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26
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Yin G, Zhao D, Wang X, Ren Y, Zhang L, Wu X, Nie S, Li Q. Bio-compatible poly(ester-urethane)s based on PEG–PCL–PLLA copolymer with tunable crystallization and bio-degradation properties. RSC Adv 2015. [DOI: 10.1039/c5ra15531b] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
PEG–PCL–PLLA-based poly(ester-urethane)s with different segment ratios were successfully fabricated, which showed good cytocompatibility, good blood-compatibility and adjustable degradation rate.
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Affiliation(s)
- Guangzhong Yin
- State Key Laboratory of Chemical Resource Engineering
- Beijing University of Chemical Technology
- Beijing 100029
- China
- College of Material Science and Engineering
| | - Donglin Zhao
- State Key Laboratory of Chemical Resource Engineering
- Beijing University of Chemical Technology
- Beijing 100029
- China
- Key Laboratory of Carbon Fiber and Functional Polymers
| | - Xiao Wang
- Emergency & Critical Care Center
- Beijing Anzhen Hospital
- Capital Medical University
- Beijing
- China
| | - Ye Ren
- State Key Laboratory of Chemical Resource Engineering
- Beijing University of Chemical Technology
- Beijing 100029
- China
- College of Material Science and Engineering
| | - Lianwei Zhang
- State Key Laboratory of Chemical Resource Engineering
- Beijing University of Chemical Technology
- Beijing 100029
- China
- College of Material Science and Engineering
| | - Xingxin Wu
- Emergency & Critical Care Center
- Beijing Anzhen Hospital
- Capital Medical University
- Beijing
- China
| | - Shaoping Nie
- Emergency & Critical Care Center
- Beijing Anzhen Hospital
- Capital Medical University
- Beijing
- China
| | - Qifang Li
- State Key Laboratory of Chemical Resource Engineering
- Beijing University of Chemical Technology
- Beijing 100029
- China
- Key Laboratory of Carbon Fiber and Functional Polymers
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Fang J, Ye SH, Shankarraman V, Huang Y, Mo X, Wagner WR. Biodegradable poly(ester urethane)urea elastomers with variable amino content for subsequent functionalization with phosphorylcholine. Acta Biomater 2014; 10:4639-4649. [PMID: 25132273 DOI: 10.1016/j.actbio.2014.08.008] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2014] [Revised: 07/18/2014] [Accepted: 08/05/2014] [Indexed: 12/01/2022]
Abstract
While surface modification is well suited for imparting biomaterials with specific functionality for favorable cell interactions, the modification of degradable polymers would be expected to provide only temporary benefit. Bulk modification by incorporating pendant reactive groups for subsequent functionalization of biodegradable polymers would provide a more enduring approach. Towards this end, a series of biodegradable poly(ester urethane)urea elastomers with variable amino content (PEUU-NH2 polymers) were developed. Carboxylated phosphorycholine was synthesized and conjugated to the PEUU-NH2 polymers for subsequent bulk functionalization to generate PEUU-PC polymers. Synthesis was verified by proton nuclear magnetic resonance, X-ray photoelectron spectroscopy and attenuated total reflection Fourier transform infrared spectroscopy. The impact of amine incorporation and phosphorylcholine conjugation was shown on mechanical, thermal and degradation properties. Water absorption increased with increasing amine content, and further with PC conjugation. In wet conditions, tensile strength and initial modulus generally decreased with increasing hydrophilicity, but remained in the range of 5-30 MPa and 10-20 MPa, respectively. PC conjugation was associated with significantly reduced platelet adhesion in blood contact testing and the inhibition of rat vascular smooth muscle cell proliferation. These biodegradable PEUU-PC elastomers offer attractive properties for applications as non-thrombogenic, biodegradable coatings and for blood-contacting scaffold applications. Further, the PEUU-NH2 base polymers offer the potential to have multiple types of biofunctional groups conjugated onto the backbone to address a variety of design objectives.
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Affiliation(s)
- Jun Fang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China; McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA 15219, USA; Department of Surgery, University of Pittsburgh, Pittsburgh, PA 15219, USA
| | - Sang-Ho Ye
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA 15219, USA; Department of Surgery, University of Pittsburgh, Pittsburgh, PA 15219, USA
| | - Venkat Shankarraman
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA 15219, USA; Department of Surgery, University of Pittsburgh, Pittsburgh, PA 15219, USA
| | - Yixian Huang
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Pittsburgh, Pittsburgh, PA 15261, USA
| | - Xiumei Mo
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China; College of Chemistry and Chemical Engineering and Biological Engineering, Donghua University, Shanghai 201620, China
| | - William R Wagner
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA 15219, USA; Department of Surgery, University of Pittsburgh, Pittsburgh, PA 15219, USA; Department of Chemical Engineering, University of Pittsburgh, Pittsburgh, PA 15219, USA; Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA 15219, USA.
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Zieleniewska M, Auguścik M, Prociak A, Rojek P, Ryszkowska J. Polyurethane-urea substrates from rapeseed oil-based polyol for bone tissue cultures intended for application in tissue engineering. Polym Degrad Stab 2014. [DOI: 10.1016/j.polymdegradstab.2014.03.010] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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29
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Stefanović IS, Djonlagić J, Tovilović G, Nestorov J, Antić VV, Ostojić S, Pergal MV. Poly(urethane-dimethylsiloxane) copolymers displaying a range of soft segment contents, noncytotoxic chemistry, and nonadherent properties toward endothelial cells. J Biomed Mater Res A 2014; 103:1459-75. [PMID: 25046378 DOI: 10.1002/jbm.a.35285] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2014] [Revised: 07/07/2014] [Accepted: 07/18/2014] [Indexed: 11/09/2022]
Abstract
Polyurethane copolymers based on α,ω-dihydroxypropyl poly(dimethylsiloxane) (PDMS) with a range of soft segment contents were prepared by two-stage polymerization, and their microstructures, thermal, thermomechanical, and surface properties, as well as in vitro hemo- and cytocompatibility were evaluated. All utilized characterization methods confirmed the existence of moderately microphase separated structures with the appearance of some microphase mixing between segments as the PDMS (i.e., soft segment) content increased. Copolymers showed higher crystallinity, storage moduli, surface roughness, and surface free energy, but less hydrophobicity with decreasing PDMS content. Biocompatibility of copolymers was evaluated using an endothelial EA.hy926 cell line by direct contact, an extraction method and after pretreatment of copolymers with multicomponent protein mixture, as well as by a competitive protein adsorption assay. Copolymers showed no toxic effect to endothelial cells and all copolymers, except that with the lowest PDMS content, exhibited resistance to endothelial cell adhesion, suggesting their unsuitability for long-term biomedical devices which particularly require re-endothelialization. All copolymers exhibited excellent resistance to fibrinogen adsorption and adsorbed more albumin than fibrinogen in the competitive adsorption assay, suggesting their good hemocompatibility. The noncytotoxic chemistry of these synthesized materials, combined with their nonadherent properties which are inhospitable to cell attachment and growth, underlie the need for further investigations to clarify their potential for use in short-term biomedical devices.
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Affiliation(s)
- Ivan S Stefanović
- Institute of Chemistry, Technology and Metallurgy, University of Belgrade, Njegoševa 12, 11000, Belgrade, Serbia
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Fu HL, Hong Y, Little SR, Wagner WR. Collagenase-Labile Polyurethane Urea Synthesis and Processing into Hollow Fiber Membranes. Biomacromolecules 2014; 15:2924-32. [DOI: 10.1021/bm500552f] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Hui-Li Fu
- McGowan Institute for Regenerative Medicine, ‡Department of Surgery, §Department of Chemical & Petroleum Engineering, and ∥Department of Bioengineering, University of Pittsburgh, Pittsburgh, Pennsylvania 15219, United States
| | - Yi Hong
- McGowan Institute for Regenerative Medicine, ‡Department of Surgery, §Department of Chemical & Petroleum Engineering, and ∥Department of Bioengineering, University of Pittsburgh, Pittsburgh, Pennsylvania 15219, United States
| | - Steven R. Little
- McGowan Institute for Regenerative Medicine, ‡Department of Surgery, §Department of Chemical & Petroleum Engineering, and ∥Department of Bioengineering, University of Pittsburgh, Pittsburgh, Pennsylvania 15219, United States
| | - William R. Wagner
- McGowan Institute for Regenerative Medicine, ‡Department of Surgery, §Department of Chemical & Petroleum Engineering, and ∥Department of Bioengineering, University of Pittsburgh, Pittsburgh, Pennsylvania 15219, United States
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Podporska-Carroll J, Ip JW, Gogolewski S. Biodegradable poly(ester urethane) urea scaffolds for tissue engineering: Interaction with osteoblast-like MG-63 cells. Acta Biomater 2014; 10:2781-91. [PMID: 24560622 DOI: 10.1016/j.actbio.2014.02.016] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2013] [Revised: 02/05/2014] [Accepted: 02/10/2014] [Indexed: 10/25/2022]
Abstract
Porous three-dimensional scaffolds with potential for application as cancellous bone graft substitutes were prepared from aliphatic segmented poly(ester urethane) urea using the phase-inverse technique. Proton nuclear magnetic resonance, size-exclusion chromatography, electron spectroscopy for chemical analysis, secondary ion mass spectrometry, infrared spectroscopy, scanning electron microscopy, differential scanning calorimetry, computed tomography and mechanical tests were carried out, to characterize the scaffolds' physicochemical properties. Human osteosarcoma MG-63 cells were seeded into the scaffolds for 1, 2, 3 and 4weeks to evaluate their potential to support attachment, growth and proliferation of osteogenic cells. The scaffold-cell interaction was assessed by analysis of DNA content, total protein amount, alkaline phosphatase activity and WST-1 assay. The scaffolds supported cell attachment, growth and proliferation over the whole culture period of 4weeks (DNA, total protein amount). There was, however, a reduction in the WST-1 assay values at 4weeks, which might suggest a reduction in the rate of cell proliferation at this time.
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Silvestri A, Sartori S, Boffito M, Mattu C, Di Rienzo AM, Boccafoschi F, Ciardelli G. Biomimetic myocardial patches fabricated with poly(ɛ-caprolactone) and polyethylene glycol-based polyurethanes. J Biomed Mater Res B Appl Biomater 2013; 102:1002-13. [DOI: 10.1002/jbm.b.33081] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2013] [Revised: 09/06/2013] [Accepted: 11/19/2013] [Indexed: 11/05/2022]
Affiliation(s)
- Antonella Silvestri
- Department of Mechanical and Aerospace Engineering; Politecnico di Torino; Torino Italy
| | - Susanna Sartori
- Department of Mechanical and Aerospace Engineering; Politecnico di Torino; Torino Italy
| | - Monica Boffito
- Department of Mechanical and Aerospace Engineering; Politecnico di Torino; Torino Italy
| | - Clara Mattu
- Department of Mechanical and Aerospace Engineering; Politecnico di Torino; Torino Italy
| | - Anna M. Di Rienzo
- Department of Mechanical and Aerospace Engineering; Politecnico di Torino; Torino Italy
| | - Francesca Boccafoschi
- Health Sciences Department; School of Medicine; University of Eastern Piedmont; Novara Italy
| | - Gianluca Ciardelli
- Department of Mechanical and Aerospace Engineering; Politecnico di Torino; Torino Italy
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Sartori S, Boffito M, Serafini P, Caporale A, Silvestri A, Bernardi E, Sassi MP, Boccafoschi F, Ciardelli G. Synthesis and structure–property relationship of polyester-urethanes and their evaluation for the regeneration of contractile tissues. REACT FUNCT POLYM 2013. [DOI: 10.1016/j.reactfunctpolym.2013.01.006] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Lakshmanan R, Krishnan UM, Sethuraman S. Polymeric scaffold aided stem cell therapeutics for cardiac muscle repair and regeneration. Macromol Biosci 2013; 13:1119-34. [PMID: 23982911 DOI: 10.1002/mabi.201300223] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2013] [Revised: 07/05/2013] [Indexed: 12/13/2022]
Abstract
The constantly expanding repository of novel polymers and stem cells has opened up new vistas in the field of cardiac tissue engineering. Successful regeneration of the complex cardiac tissue mainly centres on the appropriate scaffold material with topographical features that mimic the native environment. The integration of stem cells on these scaffolds is expected to enhance the regeneration potential. This review elaborates on the interplay of these vital factors in achieving the functional cardiac tissue. The recent advances in polymers, nanocomposites, and stem cells from different sources are highlighted. Special emphasis is laid on the clinical trials involving stem cells and the state-of-the-art materials to obtain a balanced perspective on the translational potential of this strategy.
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Affiliation(s)
- Rajesh Lakshmanan
- Centre for Nanotechnology & Advanced Biomaterials, School of Chemical and Biotechnology, SASTRA University, Thanjavur, 613 401, Tamil Nadu, India
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35
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Sisson AL, Ekinci D, Lendlein A. The contemporary role of ε-caprolactone chemistry to create advanced polymer architectures. POLYMER 2013. [DOI: 10.1016/j.polymer.2013.04.045] [Citation(s) in RCA: 89] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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36
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Silvestri A, Boffito M, Sartori S, Ciardelli G. Biomimetic Materials and Scaffolds for Myocardial Tissue Regeneration. Macromol Biosci 2013; 13:984-1019. [DOI: 10.1002/mabi.201200483] [Citation(s) in RCA: 75] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2012] [Revised: 04/23/2013] [Indexed: 12/14/2022]
Affiliation(s)
- Antonella Silvestri
- Department of Mechanical and Aerospace Engineering; Politecnico di Torino; Corso Duca degli Abruzzi 24 10129 Turin Italy
| | - Monica Boffito
- Department of Mechanical and Aerospace Engineering; Politecnico di Torino; Corso Duca degli Abruzzi 24 10129 Turin Italy
| | - Susanna Sartori
- Department of Mechanical and Aerospace Engineering; Politecnico di Torino; Corso Duca degli Abruzzi 24 10129 Turin Italy
| | - Gianluca Ciardelli
- Department of Mechanical and Aerospace Engineering; Politecnico di Torino; Corso Duca degli Abruzzi 24 10129 Turin Italy
- CNR-IPCF UOS Pisa; Via Moruzzi 1 56124 Pisa Italy
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Zhu C, Kustra SR, Bettinger CJ. Photocrosslinkable biodegradable elastomers based on cinnamate-functionalized polyesters. Acta Biomater 2013; 9:7362-70. [PMID: 23567941 DOI: 10.1016/j.actbio.2013.03.041] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2012] [Revised: 03/18/2013] [Accepted: 03/29/2013] [Indexed: 10/27/2022]
Abstract
Synthetic biodegradable elastomers are an emerging class of materials that play a critical role in supporting innovations in bioabsorbable medical implants. This paper describes the synthesis and characterization of poly(glycerol-co-sebacate)-cinnamate (PGS-CinA), a biodegradable elastomer based on hyperbranched polyesters derivatized with pendant cinnamate groups. PGS-CinA can be prepared via photodimerization in the absence of photoinitiators using monomers that are found in common foods. The resulting network exhibits a Young's modulus of 50.5-152.1kPa and a projected in vitro degradation half-life time between 90 and 140days. PGS-CinA elastomers are intrinsically cell-adherent and support rapid proliferation of fibroblasts. Spreading and proliferation of fibroblasts are loosely governed by the substrate stiffness within the range of Young's moduli in PGS-CinA networks that were prepared. The thermo-mechanical properties, biodegradability and intrinsic support of cell attachment and proliferation suggest that PGS-CinA networks are broadly applicable for use in next generation bioabsorable materials including temporary medical devices and scaffolds for soft tissue engineering.
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Cherng JY, Hou TY, Shih MF, Talsma H, Hennink WE. Polyurethane-based drug delivery systems. Int J Pharm 2013; 450:145-62. [DOI: 10.1016/j.ijpharm.2013.04.063] [Citation(s) in RCA: 196] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2013] [Revised: 04/19/2013] [Accepted: 04/20/2013] [Indexed: 01/21/2023]
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Odarchenko Y, Sijbrandi N, Rosenthal M, Kimenai A, Mes E, Broos R, Bar G, Dijkstra P, Feijen J, Ivanov D. Structure formation and hydrogen bonding in all-aliphatic segmented copolymers with uniform hard segments. Acta Biomater 2013; 9:6143-9. [PMID: 23041784 DOI: 10.1016/j.actbio.2012.09.038] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2012] [Revised: 09/19/2012] [Accepted: 09/27/2012] [Indexed: 11/24/2022]
Abstract
Fully aliphatic segmented poly(ether ester amide) copolymers with uniform hard segments prepared by melt polycondensation of α,ω-hydroxyl end-functionalized polytetrahydrofuran and short glycine or β-alanine bisester-bisoxalamide units hold promise for biomedical applications. For polymers with the hard block contents varying from 10% to 27%, differential scanning calorimetry and atomic force microscopy reveal a highly phase-separated morphology, with ribbon-like nanocrystals dispersed in the soft segment matrix. To relate the polymer properties to the structure of the hard segment, the monomers were prepared and studied by optical and X-ray diffraction measurements. It was shown that the glycine and β-alanine carbonyl ester groups are tilted away from the oxalamide plane, which can affect the degradation rate via hydrolysis of the ester bond.
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40
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Hong Y, Ye SH, Pelinescu AL, Wagner WR. Synthesis, characterization, and paclitaxel release from a biodegradable, elastomeric, poly(ester urethane)urea bearing phosphorylcholine groups for reduced thrombogenicity. Biomacromolecules 2012; 13:3686-94. [PMID: 23035885 DOI: 10.1021/bm301158j] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Biodegradable polymers with high elasticity, low thrombogenicity, and drug loading capacity continue to be pursued for vascular engineering applications, including vascular grafts and stents. A biodegradable elastomeric polyurethane was designed as a candidate material for use as a drug-eluting stent coating, such that it was nonthrombogenic and could provide antiproliferative drug release to inhibit smooth muscle cell proliferation. A phosphorylcholine containing poly(ester urethane) urea (PEUU-PC) was synthesized by grafting aminated phosphorylcholine onto backbone carboxyl groups of a polyurethane (PEUU-COOH) synthesized from a soft segment blend of polycaprolactone and dimethylolpropionic acid, a hard segment of diisocyanatobutane and a putrescine chain extender. Poly(ester urethane) urea (PEUU) from a soft segment of polycaprolactone alone was employed as a control material. All of the synthesized polyurethanes showed high distensibility (>600%) and tensile strengths in the 20-35 MPa range. PEUU-PC experienced greater degradation than PEUU or PEUU-COOH in either a saline or lipase enzyme solution. PEUU-PC also exhibited markedly inhibited ovine blood platelet deposition compared with PEUU-COOH and PEUU. Paclitaxel loaded in all of the polymers during solvent casting continued to release for 5 d after a burst release in a 10% ethanol/PBS solution, which was utilized to increase the solubility of the releasate. Rat smooth muscle cell proliferation was significantly inhibited in 1 wk cell culture when releasate from the paclitaxel-loaded films was present. Based on these results, the synthesized PEUU-PC has promising functionality for use as a nonthrombogenic, drug eluting coating on metallic vascular stents and grafts.
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Affiliation(s)
- Yi Hong
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA 15219, USA
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43
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Chen Q, Zhu C, Thouas GA. Progress and challenges in biomaterials used for bone tissue engineering: bioactive glasses and elastomeric composites. Prog Biomater 2012; 1:2. [PMID: 29470743 PMCID: PMC5120665 DOI: 10.1186/2194-0517-1-2] [Citation(s) in RCA: 98] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2012] [Accepted: 07/19/2012] [Indexed: 01/17/2023] Open
Abstract
Driven by the increasing economic burden associated with bone injury and disease, biomaterial development for bone repair represents the most active research area in the field of tissue engineering. This article provides an update on recent advances in the development of bioactive biomaterials for bone regeneration. Special attention is paid to the recent developments of sintered Na-containing bioactive glasses, borate-based bioactive glasses, those doped with trace elements (such as Cu, Zn, and Sr), and novel elastomeric composites. Although bioactive glasses are not new to bone tissue engineering, their tunable mechanical properties, biodegradation rates, and ability to support bone and vascular tissue regeneration, as well as osteoblast differentiation from stem and progenitor cells, are superior to other bioceramics. Recent progresses on the development of borate bioactive glasses and trace element-doped bioactive glasses expand the repertoire of bioactive glasses. Although boride and other trace elements have beneficial effects on bone remodeling and/or associated angiogenesis, the risk of toxicity at high levels must be highly regarded in the design of new composition of bioactive biomaterials so that the release of these elements must be satisfactorily lower than their biologically safe levels. Elastomeric composites are superior to the more commonly used thermoplastic-matrix composites, owing to the well-defined elastic properties of elastomers which are ideal for the replacement of collagen, a key elastic protein within the bone tissue. Artificial bone matrix made from elastomeric composites can, therefore, offer both sound mechanical integrity and flexibility in the dynamic environment of injured bone.
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Affiliation(s)
- Qizhi Chen
- Department of Materials Engineering, Monash University, Clayton, Victoria 3800 Australia
| | - Chenghao Zhu
- Department of Materials Engineering, Monash University, Clayton, Victoria 3800 Australia
| | - George A Thouas
- Department of Zoology, The University of Melbourne, Parkville, Victoria 3010 Australia
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Wang F, Li Z, Guan J. Fabrication of mesenchymal stem cells-integrated vascular constructs mimicking multiple properties of the native blood vessels. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2012; 24:769-83. [PMID: 23594067 DOI: 10.1080/09205063.2012.712029] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Mesenchymal stem cells (MSCs)-populated small diameter (6 mm) vascular constructs were fabricated. The constructs mimicked the native vessels in multiple levels, i.e. having similar structure and morphology to that of the extracellular matrix in the native blood vessels; recapitulating mechanical properties such as compliance and burst pressure of the native blood vessels; simulating the highly cellularized nature of the native blood vessels; and having an antithrombogenic lumen. The constructs were fabricated by simultaneously assembling poly(ester carbonate urethane) urea nanofibers and MSCs in an electrical field. The nanofibers had a diameter similar to that of the collagen and elastin fibers in the native blood vessels. MSCs were distributed evenly in the constructs. The constructs were highly cellularized when the cell loading density was exceeded 6 million/ml. The vascular constructs were strong and flexible with breaking strains of 144-202%, tensile strengths of 0.80-1.29 MPa, compliances of 13.23-21.96 × 10(-4 )mmHg(-1), stiffness indexes of 7.3-9.8, and burst pressures greater than 1700 mmHg. These mechanical properties were similar to those of the native blood vessels. In vitro platelet deposition experiments showed that platelet adhesion was remarkably decreased in the MSCs-populated constructs compared to that in the construct without MSCs. An increase in MSC density in the constructs further decreased platelet adhesion. When cultured in a spinner flask, MSCs maintained their mitochondria viability and cell number during a two-week culture period, as confirmed by MTT and dsDNA assays. These vascular constructs may hold the potential to regenerate functional small diameter vessels for cardiovascular tissue repair.
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Affiliation(s)
- Feng Wang
- Department of Materials Science and Engineering, The Ohio State University, 2041 College Road, Columbus, OH 43210, USA
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45
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Pergal MV, Antic VV, Tovilovic G, Nestorov J, Vasiljevic-Radovic D, Djonlagic J. In vitro biocompatibility evaluation of novel urethane-siloxane co-polymers based on poly(ϵ-caprolactone)-block-poly(dimethylsiloxane)-block-poly(ϵ-caprolactone). JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2012; 23:1629-57. [PMID: 21888759 DOI: 10.1163/092050611x589338] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Novel polyurethane co-polymers (TPUs), based on poly(ϵ-caprolactone)-block-poly(dimethylsiloxane)-block-poly(ϵ-caprolactone) (PCL-PDMS-PCL) as soft segment and 4,4'-methylenediphenyl diisocyanate (MDI) and 1,4-butanediol (BD) as hard segment, were synthesized and evaluated for biomedical applications. The content of hard segments (HS) in the polymer chains was varied from 9 to 63 wt%. The influence of the content and length of the HS on the thermal, surface, mechanical properties and biocompatibility was investigated. The structure, composition and HS length were examined using (1)H- and quantitative (13)C-NMR spectroscopy. DSC results implied that the synthesized TPUs were semicrystalline polymers in which both the hard MDI/BD and soft PCL-PDMS-PCL segments participated. It was found that an increase in the average HS length (from 1.2 to 14.4 MDI/BD units) was accompanied by an increase in the crystallinity of the hard segments, storage moduli, hydrophilicity and degree of microphase separation of the co-polymers. Depending on the HS content, a gradual variation in surface properties of co-polymers was revealed by FT-IR, AFM and static water contact angle measurements. The in vitro biocompatibility of co-polymers was evaluated using the endothelial EA.hy926 cell line and protein adsorption on the polyurethane films. All synthesized TPUs adsorbed more albumin than fibrinogen from multicomponent protein mixture, which may indicate biocompatibility. The polyurethane films with high HS content and/or high roughness coefficient exhibit good surface properties and biocompatible behavior, which was confirmed by non-toxic effects to cells and good cell adhesion. Therefore, the non-cytotoxic chemistry of the co-polymers makes them good candidates for further development as biomedical implants.
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Affiliation(s)
- Marija V Pergal
- a Institute of Chemistry, Technology and Metallurgy, University of Belgrade , Studentski trg 12-16 , Belgrade , Serbia
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46
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Liu Q, Jiang L, Shi R, Zhang L. Synthesis, preparation, in vitro degradation, and application of novel degradable bioelastomers—A review. Prog Polym Sci 2012. [DOI: 10.1016/j.progpolymsci.2011.11.001] [Citation(s) in RCA: 127] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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47
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Reddy TT, Kano A, Maruyama A, Takahara A. Synthesis, Characterization and Drug Release of Biocompatible/Biodegradable Non-toxic Poly(urethane urea)s Based on Poly(ε-caprolactone)s and Lysine-Based Diisocyanate. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2012; 21:1483-502. [DOI: 10.1163/092050609x12518804794785] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Affiliation(s)
- Thatiparti Thimma Reddy
- a Institute for Materials Chemistry and Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 812-0395, Japan
| | - Arihiro Kano
- b Institute for Materials Chemistry and Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 812-0395, Japan
| | - Atsushi Maruyama
- c Institute for Materials Chemistry and Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 812-0395, Japan
| | - Atsushi Takahara
- d Institute for Materials Chemistry and Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 812-0395, Japan
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Aurand ER, Lampe KJ, Bjugstad KB. Defining and designing polymers and hydrogels for neural tissue engineering. Neurosci Res 2011; 72:199-213. [PMID: 22192467 DOI: 10.1016/j.neures.2011.12.005] [Citation(s) in RCA: 127] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2011] [Revised: 11/07/2011] [Accepted: 12/07/2011] [Indexed: 12/16/2022]
Abstract
The use of biomaterials, such as hydrogels, as neural cell delivery devices is becoming more common in areas of research such as stroke, traumatic brain injury, and spinal cord injury. When reviewing the available research there is some ambiguity in the type of materials used and results are often at odds. This review aims to provide the neuroscience community who may not be familiar with fundamental concepts of hydrogel construction, with basic information that would pertain to neural tissue applications, and to describe the use of hydrogels as cell and drug delivery devices. We will illustrate some of the many tunable properties of hydrogels and the importance of these properties in obtaining reliable and consistent results. It is our hope that this review promotes creative ideas for ways that hydrogels could be adapted and employed for the treatment of a broad range of neurological disorders.
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Affiliation(s)
- Emily R Aurand
- Neuroscience Program, University of Colorado Denver - Anschutz Medical Campus, Aurora, CO 80045, USA.
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49
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Dey J, Tran RT, Shen J, Tang L, Yang J. Development and long-term in vivo evaluation of a biodegradable urethane-doped polyester elastomer. MACROMOLECULAR MATERIALS AND ENGINEERING 2011; 296:1149-1157. [PMID: 22184499 PMCID: PMC3241003 DOI: 10.1002/mame.201100074] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
We have recently reported upon the development of crosslinked urethane-doped polyester (CUPE) network elastomers, which was motivated by the desire to overcome the drawbacks presented by crosslinked network polyesters and biodegradable polyurethanes for soft tissue engineering applications. Although the effect of the isocyanate content and post-polymerization conditions on the material structure-property relationship was examined in detail, the ability of the diol component to modulate the material properties was only studied briefly. Herein, we present a detailed report on the development of CUPE polymers synthesized using diols 4, 6, 8, 10, or 12 methylene units in length in order to investigate what role the diol component plays on the resulting material's physical properties, and assess their long-term biological performance in vivo. An increase in the diol length was shown to affect the physical properties of the CUPE polymers primarily through lowered polymeric crosslinking densities and elevated material hydrophobicity. The use of longer chain diols resulted in CUPE polymers with increased molecular weights resulting in higher tensile strength and elasticity, while also increasing the material hydrophobicity to lower bulk swelling and prolong the polymer degradation rates. Although the number of methylene units largely affected the physical properties of CUPE, the choice of diol did not affect the overall polymer cell/tissue-compatibility both in vitro and in vivo. In conclusion, we have established the diol component as an important parameter in controlling the structure-property relationship of the polymer in addition to diisocyanate concentration and post-polymerization conditions. Expanding the family of CUPE polymers increases the choices of biodegradable elastomers for tissue engineering applications.
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50
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Ma Z, Hong Y, Nelson DM, Pichamuthu JE, Leeson CE, Wagner WR. Biodegradable polyurethane ureas with variable polyester or polycarbonate soft segments: effects of crystallinity, molecular weight, and composition on mechanical properties. Biomacromolecules 2011; 12:3265-74. [PMID: 21755999 DOI: 10.1021/bm2007218] [Citation(s) in RCA: 149] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Biodegradable polyurethane urea (PUU) elastomers are ideal candidates for fabricating tissue engineering scaffolds with mechanical properties akin to strong and resilient soft tissues. PUU with a crystalline poly(ε-caprolactone) (PCL) macrodiol soft segment (SS) showed good elasticity and resilience at small strains (<50%) but showed poor resilience under large strains because of stress-induced crystallization of the PCL segments, with a permanent set of 677 ± 30% after tensile failure. To obtain softer and more resilient PUUs, we used noncrystalline poly(trimethylene carbonate) (PTMC) or poly(δ-valerolactone-co-ε-caprolactone) (PVLCL) macrodiols of different molecular weights as SSs that were reacted with 1,4-diisocyanatobutane and chain extended with 1,4-diaminobutane. Mechanical properties of the PUUs were characterized by tensile testing with static or cyclic loading and dynamic mechanical analysis. All of the PUUs synthesized showed large elongations at break (800-1400%) and high tensile strength (30-60 MPa). PUUs with noncrystalline SSs all showed improved elasticity and resilience relative to the crystalline PCL-based PUU, especially for the PUUs with high molecular weight SSs (PTMC 5400 M(n) and PVLCL 6000 M(n)), of which the permanent deformation after tensile failure was only 12 ± 7 and 39 ± 4%, respectively. The SS molecular weight also influenced the tensile modulus in an inverse fashion. Accelerated degradation studies in PBS containing 100 U/mL lipase showed significantly greater mass loss for the two polyester-based PUUs versus the polycarbonate-based PUU and for PVLCL versus PCL polyester PUUs. Basic cytocompatibility was demonstrated with primary vascular smooth muscle cell culture. The synthesized families of PUUs showed variable elastomeric behavior that could be explained in terms of the underlying molecular design and crystalline behavior. Depending on the application target of interest, these materials may provide options or guidance for soft tissue scaffold development.
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Affiliation(s)
- Zuwei Ma
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania 15219, United States
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