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Ji J, Zhao C, Hua C, Lu L, Pang Y, Sun W. 3D Printing Cervical Implant Scaffolds Incorporated with Drug-Loaded Carboxylated Chitosan Microspheres for Long-Term Anti-HPV Protein Delivery. ACS Biomater Sci Eng 2024; 10:1544-1553. [PMID: 38369785 DOI: 10.1021/acsbiomaterials.3c01594] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/20/2024]
Abstract
As attempting personalized medicine, 3D-printed tissue engineering scaffolds are employed to combine with therapeutic proteins/peptides especially in the clinical treatment of infectious diseases, genetic diseases, and cancers. However, current drug-loading methods, such as immersion and encapsulation, usually lead to the burst release of the drugs. To address these issues, we proposed an integrated strategy toward the long-term controlled release of protein. In this study, patient-customized 3D scaffolds incorporated with drug-loaded microspheres were printed to realize the effective delivery of the anti-human papillomavirus (anti-HPV) protein after cervical conization in the treatment of cervical cancer. The 3D-printed scaffold could provide mechanical support to the defect site and ensure local release of the drug to avoid systemic administration. Meanwhile, microspheres serve as functional components to prevent the inactivation of proteins, as well as regulate their release period to meet the time requirement of different treatment courses. The research also utilized bovine serum albumin as a model protein to validate the feasibility of these scaffolds as a generic technology platform. The bioactivity of the released anti-HPV protein was validated using a pseudovirus model, which demonstrated that the microsphere encapsulation would not cause protein denaturation during the scaffold fabrication process. Besides, 3D-printed scaffolds incorporated with carboxylated chitosan microspheres were biocompatible and beneficial for cell attachment, which have been demonstrated by favorable cell viability and better coverage results for HeLa and HFF-1. This study highlights the great potential of scaffolds incorporated with microspheres to serve as tissue engineering candidate products with the function of effective protein delivery in a long-term controlled manner and personalized shapes for clinical trials.
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Affiliation(s)
- Jingyuan Ji
- Biomanufacturing Center, Department of Mechanical Engineering, Tsinghua University, Haidian District, Beijing 100084, China
- Biomanufacturing and Rapid Forming Technology Key Laboratory of Beijing, Beijing 100084, China
- Overseas Expertise Introduction Center for Discipline Innovation, Tsinghua University, Haidian District, Beijing 100084, China
| | - Chenjia Zhao
- Biomanufacturing Center, Department of Mechanical Engineering, Tsinghua University, Haidian District, Beijing 100084, China
- Biomanufacturing and Rapid Forming Technology Key Laboratory of Beijing, Beijing 100084, China
- Overseas Expertise Introduction Center for Discipline Innovation, Tsinghua University, Haidian District, Beijing 100084, China
| | - Chen Hua
- Key Laboratory of Medical Molecular Virology (MOE/NHC/CAMS), School of Basic Medical Sciences, Fudan-Jinbo Functional Protein Joint Research Center, Fudan University, Shanghai 200433, China
| | - Lu Lu
- Key Laboratory of Medical Molecular Virology (MOE/NHC/CAMS), School of Basic Medical Sciences, Fudan-Jinbo Functional Protein Joint Research Center, Fudan University, Shanghai 200433, China
| | - Yuan Pang
- Biomanufacturing Center, Department of Mechanical Engineering, Tsinghua University, Haidian District, Beijing 100084, China
- Biomanufacturing and Rapid Forming Technology Key Laboratory of Beijing, Beijing 100084, China
- Overseas Expertise Introduction Center for Discipline Innovation, Tsinghua University, Haidian District, Beijing 100084, China
| | - Wei Sun
- Biomanufacturing Center, Department of Mechanical Engineering, Tsinghua University, Haidian District, Beijing 100084, China
- Biomanufacturing and Rapid Forming Technology Key Laboratory of Beijing, Beijing 100084, China
- Overseas Expertise Introduction Center for Discipline Innovation, Tsinghua University, Haidian District, Beijing 100084, China
- Department of Mechanical Engineering, Drexel University, Philadelphia, Pennsylvania 19104, United States
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Namini MS, Bayat N, Tajerian R, Ebrahimi-Barough S, Azami M, Irani S, Jangjoo S, Shirian S, Ai J. A comparison study on the behavior of human endometrial stem cell-derived osteoblast cells on PLGA/HA nanocomposite scaffolds fabricated by electrospinning and freeze-drying methods. J Orthop Surg Res 2018; 13:63. [PMID: 29587806 PMCID: PMC5870175 DOI: 10.1186/s13018-018-0754-9] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/17/2017] [Accepted: 02/28/2018] [Indexed: 01/08/2023] Open
Abstract
Background An engineered tissue structure is an artificial scaffold combined with cells and signaling factors. Among various polymers, the polylactide-co-glycolide/hydroxyapatite (PLGA/HA) has attracted much attention due to their optimal properties. The aim of this study was to study the behavior of human endometrial stem cell (hEnSC)-derived osteoblast cells cultured on PLGA/HA nanocomposite scaffolds. Methods hEnSCs were isolated and exposed to osteogenic media for 21 days. Differentiated cells were cultured on PLGA/HA synthetic scaffolds. The PLGA/HA-based nanocomposite scaffolds were fabricated using either electrospinning or freeze-drying methods. Behavior of the cells was evaluated a week after seeding hEnSC-derived osteoblast-like cells on these scaffolds. Osteogenesis was investigated in terms of alkaline phosphatase activity, gene expression, immunocytochemistry (ICC), proliferation, and scanning electron microscopy (SEM). Moreover, scaffold properties, such as pore size and morphology of the cells, onto the scaffolds were evaluated using SEM. Furthermore, biocompatibility of these scaffolds was confirmed by 3-(4,5-dimethylthiazoyl-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay. Results The matrix mineralization was proved by alizarin red staining, and the osteogenic media-treated cultures positively expressed osteocalcin and osteopontin markers. Moreover, qRT-PCR results confirmed the positive gene expression of osteopontin and osteonectin in the differentiated osteoblast-like cells. The results of behavior assessment of the cultured cells on electrospinning and freeze-dried scaffolds showed that the behavior of the cultured cells on the freeze-dried PLGA/HA scaffolds was significantly better than the electrospinning PLGA/HA scaffolds. Conclusion It has been shown that the freeze-dried PLGA/HA nanocomposite scaffolds can appropriately support the attachment and proliferation of the differentiated osteoblast cells and are a suitable candidate for bone tissue engineering.
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Affiliation(s)
- Mojdeh Salehi Namini
- Department of Biology, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Neda Bayat
- Brain and Spinal Cord Injury Research Center, Neuroscience Institute, Tehran University of Medical Sciences, Tehran, Iran.,Department of Tissue Engineering and Applied Cell Sciences, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Roxana Tajerian
- Brain and Spinal Cord Injury Research Center, Neuroscience Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Somayeh Ebrahimi-Barough
- Brain and Spinal Cord Injury Research Center, Neuroscience Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Mahmoud Azami
- Brain and Spinal Cord Injury Research Center, Neuroscience Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Shiva Irani
- Department of Biology, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Saranaz Jangjoo
- School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Sadegh Shirian
- Department of Pathology, School of Veterinary Medicine, Shahrekord University, Shahr-e Kord, Iran.,Shiraz Molecular Pathology Research Center, Dr Daneshbod Lab Pathology, Shiraz, Iran
| | - Jafar Ai
- Brain and Spinal Cord Injury Research Center, Neuroscience Institute, Tehran University of Medical Sciences, Tehran, Iran. .,Department of Tissue Engineering and Applied Cell Sciences, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, Iran.
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Tessier F, Laprise-Pelletier M, Boilard E, Fortin MA, Miled A. Automated and reconfigurable platform for niosome generation based on a microfluidic architecture. ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. ANNUAL INTERNATIONAL CONFERENCE 2017; 2016:2998-3001. [PMID: 28268943 DOI: 10.1109/embc.2016.7591360] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Drug delivery at the nano-scale is becoming an important topic in nano and regenerative medicine as it can offer a very localized therapy. Therefore, niosomes are one of the most important vehicles to release drug at the nanoscale. In this paper, we present a new automated microsystem for niosome generation on-demand. Used niosome were based on a mixture of cholesterol and dicetyl phosphate with chloroform. Three compact micropumps are connected to a microfluidic substrate in order to generate 100 nm noisome vesicles. Through this paper we also investigated the impact of using 150 μm pseudo-Y and cross shape microchannel on the diameter of vesicles. We have observed reliable results with Y-shaped microchannel, which was able to generate vesicles down to 91 nm. All the system is based on a low-cost fabrication process using dry photo resist.
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Osteogenesis evaluation of duck's feet-derived collagen/hydroxyapatite sponges immersed in dexamethasone. Biomater Res 2017; 21:2. [PMID: 28250967 PMCID: PMC5324229 DOI: 10.1186/s40824-017-0088-4] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2016] [Accepted: 02/16/2017] [Indexed: 01/09/2023] Open
Abstract
Background The aim of this study was to investigate the osteogenesis effects of DC and DC/HAp sponge immersed in without and with dexamethasone. Methods The experimental groups in this study were DC and DC/HAp sponge immersed in without dexamethasone (Dex(−)DC and Dex(−)-DC/HAp group) and with dexamethasone (Dex(+)-DC and Dex(+)-DC/HAp group). We characterized DC and DC/HAp sponge using compressive strength, scanning electron microscopy (SEM). Also, osteogenic differentiation of BMSCs on sponge (Dex(−)DC, Dex(−)-DC/HAp, Dex(+)-DC and Dex(+)-DC/HAp group) was assessed by SEM, 3-[4,5-dimethylthiazol-2-yl]-2,5-diphenyltetrazoliumbromide (MTT) assay, alkaline phosphatase (ALP) activity assay and reverse transcription-PCR (RT-PCR). Results In this study, we assessed osteogenic differentiation of BMSCs on Duck’s feet-derived collagen (DC)/HAp sponge immersed with dexamethasone Dex(+)-DC/HAp. These results showed that Dex(+)-DC/HAp group increased cell proliferation and osteogenic differentiation of BMSCs during 28 days. Conclusion From these results, Dex(+)-DC/HAp can be envisioned as a potential biomaterial for bone regeneration applications.
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Zhao F, Vaughan TJ, McNamara LM. Quantification of fluid shear stress in bone tissue engineering scaffolds with spherical and cubical pore architectures. Biomech Model Mechanobiol 2015. [DOI: 10.1007/s10237-015-0710-0] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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Li PS, Lee IL, Yu WL, Sun JS, Jane WN, Shen HH. A novel albumin-based tissue scaffold for autogenic tissue engineering applications. Sci Rep 2014; 4:5600. [PMID: 25034369 PMCID: PMC4102902 DOI: 10.1038/srep05600] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2013] [Accepted: 06/19/2014] [Indexed: 01/12/2023] Open
Abstract
Tissue scaffolds provide a framework for living tissue regeneration. However, traditional tissue scaffolds are exogenous, composed of metals, ceramics, polymers, and animal tissues, and have a defined biocompatibility and application. This study presents a new method for obtaining a tissue scaffold from blood albumin, the major protein in mammalian blood. Human, bovine, and porcine albumin was polymerised into albumin polymers by microbial transglutaminase and was then cast by freeze-drying-based moulding to form albumin tissue scaffolds. Scanning electron microscopy and material testing analyses revealed that the albumin tissue scaffold possesses an extremely porous structure, moderate mechanical strength, and resilience. Using a culture of human mesenchymal stem cells (MSCs) as a model, we showed that MSCs can be seeded and grown in the albumin tissue scaffold. Furthermore, the albumin tissue scaffold can support the long-term osteogenic differentiation of MSCs. These results show that the albumin tissue scaffold exhibits favourable material properties and good compatibility with cells. We propose that this novel tissue scaffold can satisfy essential needs in tissue engineering as a general-purpose substrate. The use of this scaffold could lead to the development of new methods of artificial fabrication of autogenic tissue substitutes.
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Affiliation(s)
- Pei-Shan Li
- 1] Department of Materials Science and Engineering, National Tsing Hua University, Hsinchu 30013, Taiwan [2] Tissue Regeneration Product Technology Division, Biomedical Technology and Device Research Laboratories, Industrial Technology Research Institute, Hsinchu County 310, Taiwan [3]
| | - I-Liang Lee
- 1] c/o Rm. 624, Bldg. 53, No. 195, Sec. 4, Chung Hsing Rd., Chutung Township, Hsinchu County 310, Taiwan [2]
| | - Wei-Lin Yu
- Tissue Regeneration Product Technology Division, Biomedical Technology and Device Research Laboratories, Industrial Technology Research Institute, Hsinchu County 310, Taiwan
| | - Jui-Sheng Sun
- Department of Orthopedic Surgery, School of Medicine, College of Medicine, National Taiwan University, Taipei 10051 and Department of Orthopaedic Surgery, National Taiwan University Hospital Hsin-Chu Branch, Hsinchu 30059, Taiwan
| | - Wann-Neng Jane
- Institute of Plant and Microbial Biology, Academia Sinica, Nankang, Taipei 11529, Taiwan
| | - Hsin-Hsin Shen
- Tissue Regeneration Product Technology Division, Biomedical Technology and Device Research Laboratories, Industrial Technology Research Institute, Hsinchu County 310, Taiwan
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Kim H, Kim HM, Jang JE, Kim CM, Kim EY, Lee D, Khang G. Osteogenic Differentiation of Bone Marrow Stem Cell in Poly(Lactic-co-Glycolic Acid) Scaffold Loaded Various Ratio of Hydroxyapatite. Int J Stem Cells 2013; 6:67-74. [PMID: 24298375 DOI: 10.15283/ijsc.2013.6.1.67] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/30/2013] [Indexed: 11/09/2022] Open
Abstract
BACKGROUND AND OBJECTIVES Hydroxyapatite has biocompatibility and bioactivity and similar to bone of in human body. The purpose of this study is to evaluate osteogenic differentiation of bone marrow stem cell (BMSC) in PLGA Scaffold added various ratio of hydroxyapatite (HAp). METHODS AND RESULTS PLGA and PLGA/HAp scaffold were prepared using solvent casting/salt-leaching method. BMSC was seeded on the PLGA and PLGA/HAp scaffold and the samples were cultured in 37℃ incubator with 5% CO2 for 28 days. Alkaline phosphatase (ALP) was carried out to evaluate alkaline phosphatase activity at 1, 3, 7, 10 and 14 days. Alizarin Red S stating was performed to identify calcium in scaffold at 1, 7, 14, 21 and 28 days. Compressive strength was measured to evaluate mechanical property of scaffold. To confirm cell viability, MTT was carried out at 1, 3, 7, 14 and 28 days. RT-PCR was performed to verify specific marker expression of osteoblast and stem cell at 7, 14, 21 and 28 days. CONCLUSIONS Osteogenic differentiation of BMSC was confirmed through ALP, RT-PCR, and alizarin red S staining in this study. These results suggest that HAp helps osteogenic differentiation of BMSC.
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Affiliation(s)
- Hyeongseok Kim
- Departments of BIN Fusion Technology ; Polymer-Nano Science & Technology, Chonbuk National University, Jeonju, Korea
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Bastakoti BP, Liao SH, Inoue M, Yusa SI, Imura M, Nakashima K, Wu KCW, Yamauchi Y. pH-responsive polymeric micelles with core-shell-corona architectures as intracellular anti-cancer drug carriers. SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS 2013; 14:044402. [PMID: 27877587 PMCID: PMC5090313 DOI: 10.1088/1468-6996/14/4/044402] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2013] [Accepted: 06/03/2013] [Indexed: 06/04/2023]
Abstract
Polymeric micelles with core-shell-corona nanoarchitecture were designed for intracellular therapeutic anti-cancer drug carriers. Poly(styrene-b-acrylic acid-b-ethylene glycol) (PS-b-PAA-b-PEG) asymmetric triblock copolymer underwent self-assembly in aqueous solution to form spherical micelles with hydrophobic PS core, anionic PAA shell and hydrophilic PEG corona. The anti-cancer drug (doxorubicin, DOX) was successfully incorporated into the polymeric micelles. The in vitro release experiment confirmed that the release of DOX from the micelles was inhibited at pH 7.4. In contrast, an accelerated release of DOX was observed at mildly acidic conditions such as pH 4.5. The excellent biocompatibility of our PS-b-PAA-b-PEG-based micelles made the synthesized nano-carrier best suited for the delivery of anti-cancer drugs.
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Affiliation(s)
- Bishnu Prasad Bastakoti
- World Premier International (WPI) Research Center for Materials, Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
| | - Shih-Hsiang Liao
- Department of Chemical Engineering, National Taiwan University, No. 1, Sec. 4, Roosevelt Road, Taipei 10617, Taiwan
| | - Masamichi Inoue
- Department of Materials Science and Chemistry, University of Hyogo, 2167 Shosha, Himeji 671-2280, Japan
| | - Shin-Ichi Yusa
- Department of Materials Science and Chemistry, University of Hyogo, 2167 Shosha, Himeji 671-2280, Japan
| | - Masataka Imura
- World Premier International (WPI) Research Center for Materials, Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
| | - Kenichi Nakashima
- Department of Chemistry, Faculty of Science and Engineering, Saga University, 1 Honjo-machi, Saga 840-8502, Japan
| | - Kevin C-W Wu
- Department of Chemical Engineering, National Taiwan University, No. 1, Sec. 4, Roosevelt Road, Taipei 10617, Taiwan
- Division of Medical Engineering Research, National Health Research Institutes, 35 Keyan Road, Zhunan, Miaoli County 350, Taiwan
| | - Yusuke Yamauchi
- World Premier International (WPI) Research Center for Materials, Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
- Faculty of Science and Engineering, Waseda University, 3-4-1 Okubo, Shinjuku, Tokyo 169-8555, Japan
- Precursory Research for Embryonic Science and Technology (PRESTO), Japan Science and Technology Agency (JST), 4-1-8 Honcho, Kawaguchi, Saitama 332-0012, Japan
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Manipulation of chemical composition and architecture of non-biodegradable poly(ethylene terephthalate)/chitosan fibrous scaffolds and their effects on L929 cell behavior. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2012; 33:37-46. [PMID: 25428039 DOI: 10.1016/j.msec.2012.07.047] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2012] [Revised: 07/04/2012] [Accepted: 07/20/2012] [Indexed: 11/23/2022]
Abstract
Microporous, non-woven fibrous scaffolds made of poly(ethylene terephthalate) and chitosan were produced by electrospinning. Fiber morphology, diameter, pore size, and wettability were manipulated by varying the chemical composition of the electrospinning solution, i.e. chitosan concentration and molecular weight, and by post-electrospinning treatment with glutaraldehyde. In vitro studies were conducted using a fibroblast cell line toward a comprehensive understanding of how scaffolds characteristics can modulate the cell behavior, i.e. viability, adhesion, proliferation, extracellular matrix secretion, and three-dimensional colonization. Substantial differences were found as a result of scaffold morphological changes. Higher levels of adhesion, spreading, and superficial proliferation were achieved for scaffolds with smaller fiber and pore diameters while cell penetration and internal colonization were enhanced for scaffolds with larger pores. Additionally, the available area for cell adhesion, which is related to fiber and pore size, was a crucial factor for the viability of L929 cells. This paper provides significant insights for the development and optimization of electrospun scaffolds toward an improved biological performance.
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Buck ME, Lynn DM. Layer-by-Layer Fabrication of Covalently Crosslinked and Reactive Polymer Multilayers Using Azlactone-Functionalized Copolymers: A Platform for the Design of Functional Biointerfaces. ADVANCED ENGINEERING MATERIALS 2011; 13:B343-B352. [PMID: 30034272 PMCID: PMC6052878 DOI: 10.1002/adem.201080085] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
We report a method for modulating the physicochemical properties of surfaces that is based on the reactive layer-by-layer fabrication of covalently crosslinked thin films using azlactone-functionalized copolymers. We demonstrate that copolymers containing different molar ratios of methylmethacrylate (MMA) and 2-vinyl-4,4-dimethylazlactone (VDMA) can be alternately deposited with poly(ethyleneimine) to assemble covalently crosslinked thin films. Characterization using ellipsometry demonstrates that, in general, film growth and thickness decrease as the content of reactive, azlactone functionality in the copolymer used to assemble the film decreases. Reflective infrared spectroscopy experiments demonstrate that films fabricated from MMA:VDMA copolymers contain residual azlactone functionality and that these reactive groups can be exploited to modify film-coated surfaces. Fabricating films from MMA:VDMA copolymers containing different compositions permitted modulation of the density of reactive groups within the films and, thus, the extent to which the films are functionalized by exposure to small molecule amines. For example, functionalization of MMA:VDMA copolymer films with the small molecule D-glucamine resulted in films with water contact angles that varied with the composition of the copolymer used to fabricate the film (e.g., as the azlactone content in the film increased, glucamine-modified films became more hydrophilic). We demonstrate further that treatment of copolymer-containing films with glucamine resulted in changes in the numbers of mammalian cells that grow on the surfaces of the films. Our results suggest the basis of methods that could be used to modulate or tune the density of chemical and biological functionality presented on surfaces of interest in a variety of fundamental and applied contexts.
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Affiliation(s)
- Maren E Buck
- Department of Chemistry, 1101 University Avenue, University of Wisconsin-Madison, Madison, WI 53706
| | - David M Lynn
- Department of Chemistry, 1101 University Avenue, University of Wisconsin-Madison, Madison, WI 53706
- Department of Chemical and Biological Engineering, 1415 Engineering Drive, University of Wisconsin-Madison, Madison, WI 53706
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Hudalla GA, Murphy WL. Biomaterials that regulate growth factor activity via bioinspired interactions. ADVANCED FUNCTIONAL MATERIALS 2011; 21:1754-1768. [PMID: 21921999 PMCID: PMC3171147 DOI: 10.1002/adfm.201002468] [Citation(s) in RCA: 110] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Growth factor activity is localized within the natural extracellular matrix (ECM) by specific non-covalent interactions with core ECM biomolecules, such as proteins and proteoglycans. Recently, these interactions have inspired us and others to develop synthetic biomaterials that can non-covalently regulate growth factor activity for tissue engineering applications. For example, biomaterials covalently or non-covalently modified with heparin glycosaminoglycans can augment growth factor release strategies. In addition, recent studies demonstrate that biomaterials modified with heparin-binding peptides can sequester cell-secreted heparin proteoglycans and, in turn, sequester growth factors and regulate stem cell behavior. Another set of studies show that modular versions of growth factor molecules can be designed to interact with specific components of natural and synthetic ECMs, including collagen and hydroxyapatite. In addition, layer-by-layer assemblies of GAGs and other natural polyelectrolytes retain growth factors at a cell-material interface via specific non-covalent interactions. This review will detail the various bioinspired strategies being used to non-covalently localize growth factor activity within biomaterials, and will highlight in vivo examples of the efficacy of these materials to promote tissue regeneration.
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Affiliation(s)
- Gregory A. Hudalla
- Department of Biomedical Engineering, University of Wisconsin, 5009 Wisconsin Institutes of Medical Research, 1111 Highland Ave. Madison, WI 53705 (USA)
| | - William L. Murphy
- Department of Biomedical Engineering, University of Wisconsin, 5009 Wisconsin Institutes of Medical Research, 1111 Highland Ave. Madison, WI 53705 (USA)
- Department of Pharmacology, University of Wisconsin, 5009 Wisconsin Institutes of Medical Research, 1111 Highland Ave. Madison, WI 53705 (USA)
- Department of Orthopedics and Rehabilitation, University of Wisconsin, 5009 Wisconsin Institutes of Medical Research, 1111 Highland Ave. Madison, WI 53705 (USA)
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