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Glotzbach K, Stamm N, Weberskirch R, Faissner A. Cationic Hydrogels Modulate Neural Stem and Progenitor Cell Proliferation and Differentiation Behavior in Dependence of Cationic Moiety Concentration in 2D Cell Culture. ACS Biomater Sci Eng 2024; 10:3148-3163. [PMID: 38227432 DOI: 10.1021/acsbiomaterials.3c01668] [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: 01/17/2024]
Abstract
The central nervous system (CNS) has a limited regenerative capacity because a hostile environment prevents tissue regeneration after damage or injury. Neural stem/progenitor cells (NSPCs) are considered a potential resource for CNS repair, which raises the issue of adequate cultivation and expansion procedures. Cationic charge supports the survival and adhesion of NSPCs. Typically, tissue culture plates with cationic coatings, such as poly-l-ornithine (PLO), have been used to culture these cell types (NSPCs). Yet presently, little is known about the impact of cationic charge concentration on the viability, proliferation, and differentiation capacity of NSPCs. Therefore, we have recently developed well-defined, fully synthetic hydrogel systems G1 (gel 1) to G6 (gel 6) that allow for the precise control of the concentration of the cationic trimethylaminoethyl acrylate (TMAEA) molecule associated with the polymer in a range from 0.06 to 0.91 μmol/mg. When murine NSPCs were cultured on these gels under differentiation conditions, we observed a strong correlation of cationic charge concentration with NSPC survival. In particular, neurons were preferentially formed on gels with a higher cationic charge concentration, whereas astrocytes and oligodendrocytes favored weakly charged or even neutral gel surfaces. To test the properties of the gels under proliferative conditions, the NSPCs were cultivated in the presence of fibroblast growth factor 2 (FGF2). The cytokine significantly increased the number of NSPCs but delayed the differentiation toward neurons and glia cells. Thus, the hydrogels are compatible with the survival, expansion, and differentiation of NSPCs and may be useful to create supportive environments in transplantation approaches.
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Affiliation(s)
- Kristin Glotzbach
- Department of Cell Morphology and Molecular Neurobiology, Ruhr Universität Bochum, Bochum 44801, Germany
| | - Nils Stamm
- Department of Chemistry and Chemical Biology, TU Dortmund University, Dortmund 44227, Germany
| | - Ralf Weberskirch
- Department of Chemistry and Chemical Biology, TU Dortmund University, Dortmund 44227, Germany
| | - Andreas Faissner
- Department of Cell Morphology and Molecular Neurobiology, Ruhr Universität Bochum, Bochum 44801, Germany
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2
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Nakano A, Kato K. Regenerative Nanotechnology: Engineered Surfaces for Stem Cell Production. Nanomedicine (Lond) 2023. [DOI: 10.1007/978-981-16-8984-0_20] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
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3
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Nakano A, Kato K. Regenerative Nanotechnology: Engineered Surfaces for Stem Cell Production. Nanomedicine (Lond) 2022. [DOI: 10.1007/978-981-13-9374-7_20-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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Wang KY, Jin XY, Ma YH, Cai WJ, Xiao WY, Li ZW, Qi X, Ding J. Injectable stress relaxation gelatin-based hydrogels with positive surface charge for adsorption of aggrecan and facile cartilage tissue regeneration. J Nanobiotechnology 2021; 19:214. [PMID: 34275471 PMCID: PMC8287687 DOI: 10.1186/s12951-021-00950-0] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2021] [Accepted: 06/30/2021] [Indexed: 01/02/2023] Open
Abstract
Background Cartilage injury and pathological degeneration are reported in millions of patients globally. Cartilages such as articular hyaline cartilage are characterized by poor self-regeneration ability due to lack of vascular tissue. Current treatment methods adopt foreign cartilage analogue implants or microfracture surgery to accelerate tissue repair and regeneration. These methods are invasive and are associated with the formation of fibrocartilage, which warrants further exploration of new cartilage repair materials. The present study aims to develop an injectable modified gelatin hydrogel. Method The hydrogel effectively adsorbed proteoglycans secreted by chondrocytes adjacent to the cartilage tissue in situ, and rapidly formed suitable chondrocyte survival microenvironment modified by ε-poly-L-lysine (EPL). Besides, dynamic covalent bonds were introduced between glucose and phenylboronic acids (PBA). These bonds formed reversible covalent interactions between the cis−diol groups on polyols and the ionic boronate state of PBA. PBA-modified hydrogel induced significant stress relaxation, which improved chondrocyte viability and cartilage differentiation of stem cells. Further, we explored the ability of these hydrogels to promote chondrocyte viability and cartilage differentiation of stem cells through chemical and mechanical modifications. Results In vivo and in vitro results demonstrated that the hydrogels exhibited efficient biocompatibility. EPL and PBA modified GelMA hydrogel (Gel-EPL/B) showed stronger activity on chondrocytes compared to the GelMA control group. The Gel-EPL/B group induced the secretion of more extracellular matrix and improved the chondrogenic differentiation potential of stem cells. Finally, thus hydrogel promoted the tissue repair of cartilage defects. Conclusion Modified hydrogel is effective in cartilage tissue repair. ![]()
Supplementary Information The online version contains supplementary material available at 10.1186/s12951-021-00950-0.
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Affiliation(s)
- Kai-Yang Wang
- Department of Orthopedic Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, NO. 600, Yishan Rd, Shanghai, 200233, People's Republic of China
| | - Xiang-Yun Jin
- Department of Orthopedic Trauma, Department of Orthopedics, School of Medicine, Renji Hospital, Shanghai Jiao Tong University, Shanghai, 200127, People's Republic of China
| | - Yu-Hui Ma
- Department of Rehabilitation Medicine, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, NO. 600, Yishan Rd, Shanghai, 200233, People's Republic of China
| | - Wei-Jie Cai
- Department of Orthopedic Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, NO. 600, Yishan Rd, Shanghai, 200233, People's Republic of China
| | - Wei-Yuan Xiao
- Department of Orthopedic Trauma, Department of Orthopedics, School of Medicine, Renji Hospital, Shanghai Jiao Tong University, Shanghai, 200127, People's Republic of China
| | - Zhi-Wei Li
- Department of Orthopedic Trauma, Department of Orthopedics, School of Medicine, Renji Hospital, Shanghai Jiao Tong University, Shanghai, 200127, People's Republic of China.
| | - Xin Qi
- Department of Orthopaedics, Shanghai Pudong Hospital, Fudan University Pudong Medical Center, No.2800 Gongwei Road, Huinan Town, Pudong, Shanghai, China.
| | - Jian Ding
- Department of Orthopedic Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, NO. 600, Yishan Rd, Shanghai, 200233, People's Republic of China.
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Seims KB, Hunt NK, Chow LW. Strategies to Control or Mimic Growth Factor Activity for Bone, Cartilage, and Osteochondral Tissue Engineering. Bioconjug Chem 2021; 32:861-878. [PMID: 33856777 DOI: 10.1021/acs.bioconjchem.1c00090] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Growth factors play a critical role in tissue repair and regeneration. However, their clinical success is limited by their low stability, short half-life, and rapid diffusion from the delivery site. Supraphysiological growth factor concentrations are often required to demonstrate efficacy but can lead to adverse reactions, such as inflammatory complications and increased cancer risk. These issues have motivated the development of delivery systems that enable sustained release and controlled presentation of growth factors. This review specifically focuses on bioconjugation strategies to enhance growth factor activity for bone, cartilage, and osteochondral applications. We describe approaches to localize growth factors using noncovalent and covalent methods, bind growth factors via peptides, and mimic growth factor function with mimetic peptide sequences. We also discuss emerging and future directions to control spatiotemporal growth factor delivery to improve functional tissue repair and regeneration.
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Affiliation(s)
- Kelly B Seims
- Department of Materials Science and Engineering, Lehigh University, Bethlehem, Pennsylvania 18015, United States
| | - Natasha K Hunt
- Department of Bioengineering, Lehigh University, Bethlehem, Pennsylvania 18015, United States
| | - Lesley W Chow
- Department of Materials Science and Engineering, Lehigh University, Bethlehem, Pennsylvania 18015, United States
- Department of Bioengineering, Lehigh University, Bethlehem, Pennsylvania 18015, United States
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6
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Yamauchi Y, Hirata I, Tanimoto K, Kato K. Epidermal growth factor‐immobilized surfaces for the selective expansion of neural progenitor cells derived from induced pluripotent stem cells. Biotechnol Bioeng 2020; 117:2741-2748. [DOI: 10.1002/bit.27445] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Revised: 05/28/2020] [Accepted: 05/28/2020] [Indexed: 11/11/2022]
Affiliation(s)
- Yuka Yamauchi
- Department of Biomaterials, Graduate School of Biomedical and Health SciencesHiroshima University Hiroshima Japan
- Department of Orthodontics and Craniofacial Developmental Biology, Graduate School of Biomedical and Health SciencesHiroshima University Hiroshima Japan
| | - Isao Hirata
- Department of Biomaterials, Graduate School of Biomedical and Health SciencesHiroshima University Hiroshima Japan
| | - Kotaro Tanimoto
- Department of Orthodontics and Craniofacial Developmental Biology, Graduate School of Biomedical and Health SciencesHiroshima University Hiroshima Japan
| | - Koichi Kato
- Department of Biomaterials, Graduate School of Biomedical and Health SciencesHiroshima University Hiroshima Japan
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7
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Enriquez-Ochoa D, Robles-Ovalle P, Mayolo-Deloisa K, Brunck MEG. Immobilization of Growth Factors for Cell Therapy Manufacturing. Front Bioeng Biotechnol 2020; 8:620. [PMID: 32637403 PMCID: PMC7317031 DOI: 10.3389/fbioe.2020.00620] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Accepted: 05/20/2020] [Indexed: 12/21/2022] Open
Abstract
Cell therapy products exhibit great therapeutic potential but come with a deterring price tag partly caused by their costly manufacturing processes. The development of strategies that lead to cost-effective cell production is key to expand the reach of cell therapies. Growth factors are critical culture media components required for the maintenance and differentiation of cells in culture and are widely employed in cell therapy manufacturing. However, they are expensive, and their common use in soluble form is often associated with decreased stability and bioactivity. Immobilization has emerged as a possible strategy to optimize growth factor use in cell culture. To date, several immobilization techniques have been reported for attaching growth factors onto a variety of biomaterials, but these have been focused on tissue engineering. This review briefly summarizes the current landscape of cell therapy manufacturing, before describing the types of chemistry that can be used to immobilize growth factors for cell culture. Emphasis is placed to identify strategies that could reduce growth factor usage and enhance bioactivity. Finally, we describe a case study for stem cell factor.
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Affiliation(s)
| | | | - Karla Mayolo-Deloisa
- Tecnologico de Monterrey, School of Engineering and Science, FEMSA Biotechnology Center, Monterrey, Mexico
| | - Marion E. G. Brunck
- Tecnologico de Monterrey, School of Engineering and Science, FEMSA Biotechnology Center, Monterrey, Mexico
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8
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Shakya A, Imado E, Nguyen PK, Matsuyama T, Horimoto K, Hirata I, Kato K. Oriented immobilization of basic fibroblast growth factor: Bioengineered surface design for the expansion of human mesenchymal stromal cells. Sci Rep 2020; 10:8762. [PMID: 32472000 PMCID: PMC7260242 DOI: 10.1038/s41598-020-65572-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2019] [Accepted: 05/05/2020] [Indexed: 01/14/2023] Open
Abstract
E. coli expressed recombinant basic fibroblast growth factor (bFGF) with histidine-tag (bFGF-His) was immobilized onto the surface of a glass plate modified with a Ni(II)-chelated alkanethiol monolayer. The immobilization is expected to take place through the coordination between Ni(II) and His-tag. The bFGF-immobilized surface was exposed to citrate buffer solution to refold in situ the surface-immobilized bFGF. The secondary structure of immobilized bFGF-His was analyzed by solid-phase circular dichroism (CD) spectroscopy. Immortalized human mesenchymal stromal cells (hMSCs) were cultured on the bFGF-His-immobilized surface to examine their proliferation. CD spectroscopy revealed that the immobilized bFGF initially exhibited secondary structure rich in α-helix and that the spectrum was gradually transformed to exhibit the formation of β-strands upon exposure to citrate buffer solution, approaching to the spectrum of native bFGF. The rate of hMSC proliferation was 1.2-fold higher on the bFGF-immobilized surface treated with in situ citrate buffer, compared to the polystyrene surface. The immobilized bFGF-His treated in situ with citrate buffer solution seemed to be biologically active because its secondary structure approached its native state. This was well demonstrated by the cell culture experiments. From these results we conclude that immobilization of bFGF on the culture substrate serves to enhance proliferation of hMSCs.
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Affiliation(s)
- Ajay Shakya
- Department of Biomaterials, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Eiji Imado
- Department of Biomaterials, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Phuong Kim Nguyen
- Department of Biomaterials, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan.,Faculty of Odonto-Stomatology, Ho Chi Minh City University of Medicine and Pharmacy, Ho Chi Minh, Vietnam
| | - Tamamo Matsuyama
- Department of Biomaterials, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Kotaro Horimoto
- Department of Biomaterials, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Isao Hirata
- Department of Biomaterials, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Koichi Kato
- Department of Biomaterials, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan.
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9
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Lee S, Ganesan R, Krüger-Genge A, Kratz K, Franke RP, Lendlein A, Jung F. Substrate-enzyme affinity-based surface modification strategy for endothelial cell-specific binding under shear stress. Clin Hemorheol Microcirc 2019; 75:85-98. [PMID: 31884458 DOI: 10.3233/ch-190736] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Establishing an endothelial cell (EC) monolayer on top of the blood contacting surface of grafts is considered to be a promising approach for creating a hemocompatible surface. Here we utilized the high affinity interactions between the EC plasma membrane expressed enzyme called endothelin converting enzyme-1 (ECE-1) and its corresponding substrate big Endothelin-1 (bigET-1) to engineer an EC-specific binding surface. Since enzymatic cleavage of substrates require physical interaction between the enzyme and its corresponding substrate, it was hypothesized that a surface with chemically immobilized synthetic bigET-1 will preferentially attract ECs over other types of cells found in vascular system such as vascular smooth muscle cells (VSMCs). First, the expression of ECE-1 was significantly higher in ECs, and ECs processed synthetic bigET-1 to produce ET-1 in a cell number-dependent manner. Such interaction between ECs and synthetic bigET-1 was also detectible in blood. Next, vinyl-terminated self-assembled monolayers (SAMs) were established, oxidized and activated on a glass substrate as a model to immobilize synthetic bigET-1 via amide bonds. The ECs cultured on the synthetic bigET-1-immobilized surface processed larger amount of synthetic bigET-1 to produce ET-1 compared to VSMCs (102.9±5.13 vs. 9.75±0.74 pg/ml). The number of ECs bound to the synthetic bigET-1-immobilized surface during 1 h of shearing (5dyne/cm2) was approximately 3-fold higher than that of VSMCs (46.25±12.61 vs. 15.25±3.69 cells/100×HPF). EC-specific binding of synthetic bigET-1-immobilized surface over a surface modified with collagen, a common substance for cell adhesion, was also observed. The present study demonstrated that using the substrate-enzyme affinity (SEA) of cell type-specific enzyme and its corresponding substrate can be an effective method to engineer a surface preferentially binds specific type of cells. This novel strategy might open a new route toward rapid endothelialization under dynamic conditions supporting the long-term patency of cardiovascular implants.
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Affiliation(s)
- Seahyoung Lee
- Institute of Biomaterial Science and Berlin-Brandenburg Center for Regenerative Therapies, Helmholtz-Zentrum Geesthacht, Teltow, Germany
| | - Ramakrishnan Ganesan
- Institute of Biomaterial Science and Berlin-Brandenburg Center for Regenerative Therapies, Helmholtz-Zentrum Geesthacht, Teltow, Germany
| | - Anne Krüger-Genge
- Institute of Biomaterial Science and Berlin-Brandenburg Center for Regenerative Therapies, Helmholtz-Zentrum Geesthacht, Teltow, Germany
| | - Karl Kratz
- Institute of Biomaterial Science and Berlin-Brandenburg Center for Regenerative Therapies, Helmholtz-Zentrum Geesthacht, Teltow, Germany
| | - Ralf-Peter Franke
- Central Institute for Biomedical Engineering, University of Ulm, Ulm, Germany
| | - Andreas Lendlein
- Institute of Biomaterial Science and Berlin-Brandenburg Center for Regenerative Therapies, Helmholtz-Zentrum Geesthacht, Teltow, Germany.,Institute of Chemistry, University of Potsdam, Potsdam, Germany
| | - Friedrich Jung
- Institute of Biomaterial Science and Berlin-Brandenburg Center for Regenerative Therapies, Helmholtz-Zentrum Geesthacht, Teltow, Germany
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10
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Nakaji-Hirabayashi T, Fujimoto K, Yoshikawa C, Kitano H. Functional surfaces for efficient differentiation of neural stem/progenitor cells into dopaminergic neurons. J Biomed Mater Res A 2019; 107:860-871. [DOI: 10.1002/jbm.a.36602] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2018] [Revised: 12/11/2018] [Accepted: 12/26/2018] [Indexed: 01/17/2023]
Affiliation(s)
- Tadashi Nakaji-Hirabayashi
- Department of Applied Chemistry; Graduate School of Science and Engineering, University of Toyama; Toyama Japan
- Department of Advanced Nanosciences and Biosciences; Graduate School of Innovative Life Sciences, University of Toyama; Toyama Japan
- International Center for Materials Nanoarchitectonics; National Institute for Material Science; Ibaraki Japan
| | - Kurumi Fujimoto
- Department of Applied Chemistry; Graduate School of Science and Engineering, University of Toyama; Toyama Japan
| | - Chiaki Yoshikawa
- International Center for Materials Nanoarchitectonics; National Institute for Material Science; Ibaraki Japan
| | - Hiromi Kitano
- R & D and Head Office, Institute for Polymer-Water Interfaces; Toyama Japan
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11
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Yamazawa Y, Kato H, Nakaji-Hirabayashi T, Yoshikawa C, Kitano H, Ohno K, Saruwatari Y, Matsuoka K. Bioinactive semi-interpenetrating network gel layers: zwitterionic polymer chains incorporated in a cross-linked polymer brush. J Mater Chem B 2019. [DOI: 10.1039/c8tb03228a] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
A thin gel layer with thermo-responsive polymer brushes and semi-interpenetrating PCMB exhibited the switching of bio-inert properties depending on temperature.
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Affiliation(s)
- Yuka Yamazawa
- Graduate School of Science and Engineering
- University of Toyama
- Toyama 930-8555
- Japan
| | - Hibiki Kato
- Graduate School of Science and Engineering
- University of Toyama
- Toyama 930-8555
- Japan
| | - Tadashi Nakaji-Hirabayashi
- Graduate School of Science and Engineering
- University of Toyama
- Toyama 930-8555
- Japan
- Graduate School of Innovative Life Sciences
| | - Chiaki Yoshikawa
- International Centre for Materials Nanoarchitectonics
- National Institute of Material Science
- Ibaraki 305-0047
- Japan
| | - Hiromi Kitano
- Graduate School of Science and Engineering
- University of Toyama
- Toyama 930-8555
- Japan
- Graduate School of Innovative Life Sciences
| | - Kohji Ohno
- Institute for Chemical Research
- Kyoto University
- Kyoto 611-0011
- Japan
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12
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Lee HJ, Fernandes-Cunha GM, Putra I, Koh WG, Myung D. Tethering Growth Factors to Collagen Surfaces Using Copper-Free Click Chemistry: Surface Characterization and in Vitro Biological Response. ACS APPLIED MATERIALS & INTERFACES 2017; 9:23389-23399. [PMID: 28598594 DOI: 10.1021/acsami.7b05262] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Surface modifications with tethered growth factors have mainly been applied to synthetic polymeric biomaterials in well-controlled, acellular settings, followed by seeding with cells. The known bio-orthogonality of copper-free click chemistry provides an opportunity to not only use it in vitro to create scaffolds or pro-migratory tracks in the presence of living cells, but also potentially apply it to living tissues directly as a coupling modality in situ. In this study, we studied the chemical coupling of growth factors to collagen using biocompatible copper-free click chemistry and its effect on the enhancement of growth factor activity in vitro. We verified the characteristics of modified epidermal growth factor (EGF) using mass spectrometry and an EGF/EGF receptor binding assay, and evaluated the chemical immobilization of EGF on collagen by copper-free click chemistry using surface X-ray photoelectron spectroscopy (XPS), surface plasmon resonance (SPR) spectroscopy, and enzyme-linked immunosorbent assay (ELISA). We found that the anchoring was noncytotoxic, biocompatible, and rapid. Moreover, the surface-immobilized EGF had significant effects on epithelial cell attachment and proliferation. Our results demonstrate the possibility of copper-free click chemistry as a tool for covalent bonding of growth factors to collagen in the presence of living cells. This approach is a novel and potentially clinically useful application of copper-free click chemistry as a way of anchoring growth factors to collagen and foster epithelial wound healing.
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Affiliation(s)
- Hyun Jong Lee
- Byers Eye Institute at Stanford University School of Medicine, Palo Alto, California 94303, United States
| | | | - Ilham Putra
- Department of Ophthalmology and Visual Sciences, Illinois Eye and Ear Infirmary, College of Medicine, University of Illinois at Chicago , Chicago, Illinois 60612, United States
| | - Won-Gun Koh
- Department of Chemical and Biomolecular Engineering, Yonsei University , 50 Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea
| | - David Myung
- Byers Eye Institute at Stanford University School of Medicine, Palo Alto, California 94303, United States
- VA Palo Alto Health Care System , Palo Alto, California 94304, United States
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13
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Fusion of polymeric material-binding peptide to cell-adhesion artificial proteins enhances their biological function. Biointerphases 2017; 12:021002. [DOI: 10.1116/1.4979577] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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14
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Titanium alloy modified with anti-biofouling zwitterionic polymer to facilitate formation of bio-mineral layer. Colloids Surf B Biointerfaces 2017; 152:302-310. [DOI: 10.1016/j.colsurfb.2017.01.018] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2016] [Revised: 12/30/2016] [Accepted: 01/12/2017] [Indexed: 01/01/2023]
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15
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Signal mingle: Micropatterns of BMP-2 and fibronectin on soft biopolymeric films regulate myoblast shape and SMAD signaling. Sci Rep 2017; 7:41479. [PMID: 28134270 PMCID: PMC5278375 DOI: 10.1038/srep41479] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2016] [Accepted: 12/20/2016] [Indexed: 12/25/2022] Open
Abstract
In vivo, bone morphogenetic protein 2 (BMP-2) exists both in solution and bound to the extracellular matrix (ECM). While these two modes of presentation are known to influence cell behavior distinctly, their role in the niche microenvironment and their functional relevance in the genesis of a biological response has sparsely been investigated at a cellular level. Here we used the natural affinity of BMP-2 for fibronectin (FN) to engineer cell-sized micropatterns of BMP-2. This technique allowed the simultaneous control of the spatial presentation of fibronectin-bound BMP-2 and cell spreading. These micropatterns induced a specific actin and adhesion organization around the nucleus, and triggered the phosphorylation and nuclear translocation of SMAD1/5/8 in C2C12 myoblasts and mesenchymal stem cells, an early indicator of their osteoblastic trans-differentiation. We found that cell spreading itself potentiated a BMP-2-dependent phosphorylation of SMAD1/5/8. Finally, we demonstrated that FN/BMP-2-mediated early SMAD signaling depended on LIM kinase 2 and ROCK, rather than myosin II activation. Altogether, our results show that FN/BMP-2 micropatterns are a useful tool to study the mechanisms underlying BMP-2-mediated mechanotransduction. More broadly, our approach could be adapted to other combinations of ECM proteins and growth factors, opening an exciting avenue to recreate tissue-specific niches in vitro.
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16
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Ge H, Yu A, Chen J, Yuan J, Yin Y, Duanmu W, Tan L, Yang Y, Lan C, Chen W, Feng H, Hu R. Poly-L-ornithine enhances migration of neural stem/progenitor cells via promoting α-Actinin 4 binding to actin filaments. Sci Rep 2016; 6:37681. [PMID: 27874083 PMCID: PMC5118728 DOI: 10.1038/srep37681] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2016] [Accepted: 11/01/2016] [Indexed: 12/21/2022] Open
Abstract
The recruitment of neural stem/progenitor cells (NSPCs) for brain restoration after injury is a promising regenerative therapeutic strategy. This strategy involves enhancing proliferation, migration and neuronal differentation of NSPCs. To date, the lack of biomaterials, which facilitate these processes to enhance neural regeneration, is an obstacle for the cell replacement therapies. Our previous study has shown that NSPCs grown on poly-L-ornithine (PO) could proliferate more vigorously and differentiate into more neurons than that on Poly-L-Lysine (PLL) and Fibronectin (FN). Here, we demonstrate that PO could promote migration of NSPCs in vitro, and the underlying mechanism is PO activates α-Actinins 4 (ACTN4), which is firstly certified to be expessed in NSPCs, to promote filopodia formation and therefore enhances NSPCs migration. Taken together, PO might serve as a better candidate for transplanted biomaterials in the regenerative therapeutic strategy, compared with PLL and FN.
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Affiliation(s)
- Hongfei Ge
- Department of Neurosurgery and Key Laboratory of Neurotrauma, Southwest Hospital, Third Military Medical University, Chongqing 400038, China
| | - Anyong Yu
- Department of Emergency, The First Affiliated Hospital of Zunyi Medical College, Guizhou 563003, China
| | - Jingyu Chen
- Department of Neurosurgery and Key Laboratory of Neurotrauma, Southwest Hospital, Third Military Medical University, Chongqing 400038, China
| | - Jichao Yuan
- Department of Neurosurgery and Key Laboratory of Neurotrauma, Southwest Hospital, Third Military Medical University, Chongqing 400038, China
| | - Yi Yin
- Department of Neurosurgery and Key Laboratory of Neurotrauma, Southwest Hospital, Third Military Medical University, Chongqing 400038, China
| | - Wangsheng Duanmu
- Department of Neurosurgery and Key Laboratory of Neurotrauma, Southwest Hospital, Third Military Medical University, Chongqing 400038, China
| | - Liang Tan
- Department of Neurosurgery and Key Laboratory of Neurotrauma, Southwest Hospital, Third Military Medical University, Chongqing 400038, China
| | - Yang Yang
- Department of Neurosurgery and Key Laboratory of Neurotrauma, Southwest Hospital, Third Military Medical University, Chongqing 400038, China
| | - Chuan Lan
- Department of Neurosurgery and Key Laboratory of Neurotrauma, Southwest Hospital, Third Military Medical University, Chongqing 400038, China
| | - Weixiang Chen
- Department of Neurosurgery and Key Laboratory of Neurotrauma, Southwest Hospital, Third Military Medical University, Chongqing 400038, China
| | - Hua Feng
- Department of Neurosurgery and Key Laboratory of Neurotrauma, Southwest Hospital, Third Military Medical University, Chongqing 400038, China
| | - Rong Hu
- Department of Neurosurgery and Key Laboratory of Neurotrauma, Southwest Hospital, Third Military Medical University, Chongqing 400038, China
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17
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Haddad T, Noel S, Liberelle B, El Ayoubi R, Ajji A, De Crescenzo G. Fabrication and surface modification of poly lactic acid (PLA) scaffolds with epidermal growth factor for neural tissue engineering. BIOMATTER 2016; 6:e1231276. [PMID: 27740881 PMCID: PMC5098722 DOI: 10.1080/21592535.2016.1231276] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/03/2015] [Revised: 03/22/2016] [Accepted: 08/26/2016] [Indexed: 12/11/2022]
Abstract
In an effort to design biomaterials that may promote repair of the central nervous system, 3-dimensional scaffolds made of electrospun poly lactic acid nanofibers with interconnected pores were fabricated. These scaffolds were functionalized with polyallylamine to introduce amine groups by wet chemistry. Experimental conditions of the amination protocol were thoroughly studied and selected to introduce a high amount of amine group while preserving the mechanical and structural properties of the scaffold. Subsequent covalent grafting of epidermal growth factor was then performed to further tailor these aminated structures. The scaffolds were then tested for their ability to support Neural Stem-Like Cells (NSLCs) culture. Of interest, NSLCs were able to proliferate on these EGF-grafted substrates and remained viable up to 14 d even in the absence of soluble growth factors in the medium.
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Affiliation(s)
- Tanit Haddad
- Department of Chemical Engineering, École Polytechnique de Montréal, Centre-Ville, Montréal (QC), Canada
| | - Samantha Noel
- Department of Chemical Engineering, École Polytechnique de Montréal, Centre-Ville, Montréal (QC), Canada
| | - Benoît Liberelle
- Department of Chemical Engineering, École Polytechnique de Montréal, Centre-Ville, Montréal (QC), Canada
| | | | - Abdellah Ajji
- Department of Chemical Engineering, École Polytechnique de Montréal, Centre-Ville, Montréal (QC), Canada
| | - Gregory De Crescenzo
- Department of Chemical Engineering, École Polytechnique de Montréal, Centre-Ville, Montréal (QC), Canada
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18
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Nakaji-Hirabayashi T, Fujimoto K, Kato Y, Kitano H, Inoue Y, Ishihara K. Advantages of anchoring growth factors to materials for neural stem/progenitor cell proliferation. J Mater Chem B 2016; 4:6213-6220. [DOI: 10.1039/c6tb01944g] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
We tried to clarify the mechanisms underlying immobilized-growth factor in NSPC regulation using approaches from materials science and cell biology.
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Affiliation(s)
- T. Nakaji-Hirabayashi
- Department of Applied Chemistry
- Graduate School of Science and Engineering
- University of Toyama
- Toyama 930-8555
- Japan
| | - K. Fujimoto
- Department of Applied Chemistry
- Graduate School of Science and Engineering
- University of Toyama
- Toyama 930-8555
- Japan
| | - Y. Kato
- Department of Applied Chemistry
- Faculty of Engineering
- University of Toyama
- Toyama 930-8555
- Japan
| | - H. Kitano
- Department of Applied Chemistry
- Graduate School of Science and Engineering
- University of Toyama
- Toyama 930-8555
- Japan
| | - Y. Inoue
- Department of Materials Engineering
- Graduate School of Engineering
- The University of Tokyo
- Tokyo 113-8656
- Japan
| | - K. Ishihara
- Department of Materials Engineering
- Graduate School of Engineering
- The University of Tokyo
- Tokyo 113-8656
- Japan
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19
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Chen C, Kong X, Lee IS. Modification of surface/neuron interfaces for neural cell-type specific responses: a review. ACTA ACUST UNITED AC 2015; 11:014108. [PMID: 26694886 DOI: 10.1088/1748-6041/11/1/014108] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Surface/neuron interfaces have played an important role in neural repair including neural prostheses and tissue engineered scaffolds. This comprehensive literature review covers recent studies on the modification of surface/neuron interfaces. These interfaces are identified in cases both where the surfaces of substrates or scaffolds were in direct contact with cells and where the surfaces were modified to facilitate cell adhesion and controlling cell-type specific responses. Different sources of cells for neural repair are described, such as pheochromocytoma neuronal-like cell, neural stem cell (NSC), embryonic stem cell (ESC), mesenchymal stem cell (MSC) and induced pluripotent stem cell (iPS). Commonly modified methods are discussed including patterned surfaces at micro- or nano-scale, surface modification with conducting coatings, and functionalized surfaces with immobilized bioactive molecules. These approaches to control cell-type specific responses have enormous potential implications in neural repair.
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Affiliation(s)
- Cen Chen
- Bio-X Center, College of Life Sciences, Zhejiang Sci-Tech University, Hangzhou 310018, People's Republic of China
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20
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Guo P, Tu Y, Yang J, Wang C, Sheng N, Fang H. Water-COOH Composite Structure with Enhanced Hydrophobicity Formed by Water Molecules Embedded into Carboxyl-Terminated Self-Assembled Monolayers. PHYSICAL REVIEW LETTERS 2015; 115:186101. [PMID: 26565476 DOI: 10.1103/physrevlett.115.186101] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2015] [Indexed: 06/05/2023]
Abstract
By combining molecular dynamics simulations and quantum mechanics calculations, we show the formation of a composite structure composed of embedded water molecules and the COOH matrix on carboxyl-terminated self-assembled monolayers (COOH SAMs) with appropriate packing densities. This composite structure with an integrated hydrogen bond network inside reduces the hydrogen bonds with the water above. This explains the seeming contradiction on the stability of the surface water on COOH SAMs observed in experiments. The existence of the composite structure at appropriate packing densities results in the two-step distribution of contact angles of water droplets on COOH SAMs, around 0° and 35°, which compares favorably to the experimental measurements of contact angles collected from forty research articles over the past 25 years. These findings provide a molecular-level understanding of water on surfaces (including surfaces on biomolecules) with hydrophilic functional groups.
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Affiliation(s)
- Pan Guo
- Division of Interfacial Water and Key Laboratory of Interfacial Physics and Technology, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yusong Tu
- College of Physics Science and Technology, Yangzhou University, Jiangsu 225009, China
| | - Jinrong Yang
- Division of Interfacial Water and Key Laboratory of Interfacial Physics and Technology, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Chunlei Wang
- Division of Interfacial Water and Key Laboratory of Interfacial Physics and Technology, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China
| | - Nan Sheng
- Division of Interfacial Water and Key Laboratory of Interfacial Physics and Technology, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China
| | - Haiping Fang
- Division of Interfacial Water and Key Laboratory of Interfacial Physics and Technology, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China
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21
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Poly-L-ornithine promotes preferred differentiation of neural stem/progenitor cells via ERK signalling pathway. Sci Rep 2015; 5:15535. [PMID: 26503112 PMCID: PMC4622086 DOI: 10.1038/srep15535] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2015] [Accepted: 09/28/2015] [Indexed: 11/09/2022] Open
Abstract
Neural stem/progenitor cells (NSPCs) replacement therapies are the most attractive strategies to restore an injured brain. Key challenges of such therapies are enriching NSPCs and directing them differentiation into specific neural cell types. Here, three biomaterial substrates Poly-L-ornithine (PO), Poly-L-lysine (PLL) and fibronectin (FN) were investigated for their effects on proliferation and differentiation of rat NSPCs, and the underlying mechanisms were also explored. The results showed PO significantly increased NSPCs proliferation and induced preferred differentiation, compared with PLL and FN. Checking protein markers of several neural cell subtypes, it is showed PO significantly induced NSPCs expressing Doublecortin (DCX) and Olig2, one for neuroblasts and young neurons and the other for young oligodendrocytes. It is suggested the ERK signaling pathway was involving in this process because an ERK antagonist U0126 could inhibit PO’s effects mentioned above, as well as an ERK pathway agonist Ceramide C6 could enhance them. Given that both neurons and oligodendrocytes are the most vulnerable cells in many neurological diseases, PO-induced preferred differentiation into neurons and oligodendrocytes is a potential paradigm for NSPCs-based therapies.
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22
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Abstract
The cellular microenvironment is extremely complex, and a plethora of materials and methods have been employed to mimic its properties in vitro. In particular, scientists and engineers have taken an interdisciplinary approach in their creation of synthetic biointerfaces that replicate chemical and physical aspects of the cellular microenvironment. Here the focus is on the use of synthetic materials or a combination of synthetic and biological ligands to recapitulate the defined surface chemistries, microstructure, and function of the cellular microenvironment for a myriad of biomedical applications. Specifically, strategies for altering the surface of these environments using self-assembled monolayers, polymer coatings, and their combination with patterned biological ligands are explored. Furthermore, methods for augmenting an important physical property of the cellular microenvironment, topography, are highlighted, and the advantages and disadvantages of these approaches are discussed. Finally, the progress of materials for prolonged stem cell culture, a key component in the translation of stem cell therapeutics for clinical use, is featured.
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Affiliation(s)
- A.M. Ross
- Institute of Functional Interfaces, Karlsruhe Institute of Technology, Eggenstein-Leopoldshafen 76344, Germany
| | - J. Lahann
- Institute of Functional Interfaces, Karlsruhe Institute of Technology, Eggenstein-Leopoldshafen 76344, Germany
- Biointerfaces Institute,
- Department of Chemical Engineering,
- Department of Materials Science and Engineering, and
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, Michigan 48109
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23
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Schwab EH, Pohl TLM, Haraszti T, Schwaerzer GK, Hiepen C, Spatz JP, Knaus P, Cavalcanti-Adam EA. Nanoscale control of surface immobilized BMP-2: toward a quantitative assessment of BMP-mediated signaling events. NANO LETTERS 2015; 15:1526-1534. [PMID: 25668064 DOI: 10.1021/acs.nanolett.5b00315] [Citation(s) in RCA: 57] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
In this work we determine the impact of surface density of immobilized BMP-2 on intracellular signal transduction. We use block copolymer micellar nanolithography to fabricate substrates with precisely spaced and tunable gold nanoparticle arrays carrying single BMP-2 molecules. We found that the immobilized growth factor triggers prolonged and elevated Smad signaling pathway activation compared to the same amount of soluble protein. This approach is suitable for achieving controlled and sustained local delivery of BMP-2 and other growth factors.
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Affiliation(s)
- Elisabeth H Schwab
- Department of Biophysical Chemistry, Institute of Physical Chemistry, University of Heidelberg , INF 253, 69120 Heidelberg, Germany
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24
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Wang C, Feng B. Research progress on site-oriented and three-dimensional immobilization of protein. Mol Biol 2015. [DOI: 10.1134/s0026893315010173] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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25
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Jo YK, Choi BH, Zhou C, Ahn JS, Jun SH, Cha HJ. Bioengineered mussel glue incorporated with a cell recognition motif as an osteostimulating bone adhesive for titanium implants. J Mater Chem B 2015; 3:8102-8114. [DOI: 10.1039/c5tb01230a] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An engineered mussel glue MAP-RGD can be successfully used as a novel functional osteostimulating bone adhesive for titanium implants through improved osteoblastic cell behaviors, blood responses, and eventually enhanced bone regeneration.
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Affiliation(s)
- Yun Kee Jo
- Department of Chemical Engineering
- Pohang University of Science and Technology
- Pohang 790-784
- Korea
| | - Bong-Hyuk Choi
- Department of Chemical Engineering
- Pohang University of Science and Technology
- Pohang 790-784
- Korea
| | - Cong Zhou
- Department of Medicine
- Korea University Graduate School
- Seoul 136-705
- Korea
| | - Jin-Soo Ahn
- Dental Research Institute and Department of Dental Biomaterials Science
- Seoul National University
- Seoul 110-749
- Korea
| | - Sang Ho Jun
- Department of Dentistry, Anam Hospital
- Korea University Medical Center
- Seoul 136-705
- Korea
| | - Hyung Joon Cha
- Department of Chemical Engineering
- Pohang University of Science and Technology
- Pohang 790-784
- Korea
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26
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Rodda AE, Meagher L, Nisbet DR, Forsythe JS. Specific control of cell–material interactions: Targeting cell receptors using ligand-functionalized polymer substrates. Prog Polym Sci 2014. [DOI: 10.1016/j.progpolymsci.2013.11.006] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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27
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Yamamoto M, Rafii S, Rabbany SY. Scaffold biomaterials for nano-pathophysiology. Adv Drug Deliv Rev 2014; 74:104-14. [PMID: 24075835 DOI: 10.1016/j.addr.2013.09.009] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2013] [Revised: 09/11/2013] [Accepted: 09/20/2013] [Indexed: 01/20/2023]
Abstract
This review is intended to provide an overview of tissue engineering strategies using scaffold biomaterials to develop a vascularized tissue engineered construct for nano-pathophysiology. Two primary topics are discussed. The first is the biological or synthetic microenvironments that regulate cell behaviors in pathological conditions and tissue regeneration. Second is the use of scaffold biomaterials with angiogenic factors and/or cells to realize vascularized tissue engineered constructs for nano-pathophysiology. These topics are significantly overlapped in terms of three-dimensional (3-D) geometry of cells and blood vessels. Therefore, this review focuses on neovascularization of 3-D scaffold biomaterials induced by angiogenic factors and/or cells. The novel strategy of this approach in nano-pathophysiology is to utilize the vascularized tissue engineered construct as a tissue model to predict the distribution and subsequent therapeutic efficacy of a drug delivery system with different physicochemical and biological properties.
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Affiliation(s)
- Masaya Yamamoto
- Department of Biomaterials, Institute for Frontier Medical Sciences, Kyoto University, 53 Kawara-cho Shogoin, Sakyo-ku, Kyoto 606-8507, Japan.
| | - Shahin Rafii
- Ansary Stem Cell Institute, Department of Genetic Medicine, Weill Cornell Medical College, 1300 York Ave., New York, NY 10065, USA
| | - Sina Y Rabbany
- Ansary Stem Cell Institute, Department of Genetic Medicine, Weill Cornell Medical College, 1300 York Ave., New York, NY 10065, USA; Bioengineering Program, Hofstra University, 110 Weed Hall, Hempstead, NY 11549, USA
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28
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Nakaji-Hirabayashi T, Kitano H. Interleukin-10 chimeric protein to protect transplanted neural progenitor cells from immune responses. J Mater Chem B 2014; 2:8598-8607. [DOI: 10.1039/c4tb01413h] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
Novel system for protecting transplanted cells from inflammatory responses.
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Affiliation(s)
| | - H. Kitano
- Department of Applied Chemistry
- Graduate School of Science and Engineering
- University of Toyama
- Toyama 930-8555, Japan
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29
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Cabanas-Danés J, Huskens J, Jonkheijm P. Chemical strategies for the presentation and delivery of growth factors. J Mater Chem B 2014; 2:2381-2394. [DOI: 10.1039/c3tb20853b] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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30
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Nakaji-Hirabayashi T, Kato K, Iwata H. In Vivo Study on the Survival of Neural Stem Cells Transplanted into the Rat Brain with a Collagen Hydrogel That Incorporates Laminin-Derived Polypeptides. Bioconjug Chem 2013; 24:1798-804. [DOI: 10.1021/bc400005m] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Tadashi Nakaji-Hirabayashi
- Frontier
Research Core for Life Science, University of Toyama, 3190, Gofuku, Toyama 930-8555, Japan
- Institute
for Frontier Medical Sciences, Kyoto University, 53 Kawahara-cho, Shogoin, Sakyo-ku, Kyoto 606-8507, Japan
| | - Koichi Kato
- Graduate
School of Biomedical Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima 734-8553, Japan
- Institute
for Frontier Medical Sciences, Kyoto University, 53 Kawahara-cho, Shogoin, Sakyo-ku, Kyoto 606-8507, Japan
| | - Hiroo Iwata
- Institute
for Frontier Medical Sciences, Kyoto University, 53 Kawahara-cho, Shogoin, Sakyo-ku, Kyoto 606-8507, Japan
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31
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Pohl TLM, Schwab EH, Cavalcanti-Adam EA. Covalent binding of BMP-2 on surfaces using a self-assembled monolayer approach. J Vis Exp 2013. [PMID: 24021994 DOI: 10.3791/50842] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022] Open
Abstract
Bone morphogenetic protein 2 (BMP-2) is a growth factor embedded in the extracellular matrix of bone tissue. BMP-2 acts as trigger of mesenchymal cell differentiation into osteoblasts, thus stimulating healing and de novo bone formation. The clinical use of recombinant human BMP-2 (rhBMP-2) in conjunction with scaffolds has raised recent controversies, based on the mode of presentation and the amount to be delivered. The protocol presented here provides a simple and efficient way to deliver BMP-2 for in vitro studies on cells. We describe how to form a self-assembled monolayer consisting of a heterobifunctional linker, and show the subsequent binding step to obtain covalent immobilization of rhBMP-2. With this approach it is possible to achieve a sustained presentation of BMP-2 while maintaining the biological activity of the protein. In fact, the surface immobilization of BMP-2 allows targeted investigations by preventing unspecific adsorption, while reducing the amount of growth factor and, most notably, hindering uncontrolled release from the surface. Both short- and long-term signaling events triggered by BMP-2 are taking place when cells are exposed to surfaces presenting covalently immobilized rhBMP-2, making this approach suitable for in vitro studies on cell responses to BMP-2 stimulation.
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Affiliation(s)
- Theresa L M Pohl
- Department of Biophysical Chemistry, Institute for Physical Chemistry, University of Heidelberg
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32
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Konagaya S, Kato K, Nakaji-Hirabayashi T, Iwata H. Selective and rapid expansion of human neural progenitor cells on substrates with terminally anchored growth factors. Biomaterials 2013; 34:6008-14. [DOI: 10.1016/j.biomaterials.2013.04.041] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2013] [Accepted: 04/23/2013] [Indexed: 12/12/2022]
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33
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Lee C, Shin J, Lee JS, Byun E, Ryu JH, Um SH, Kim DI, Lee H, Cho SW. Bioinspired, Calcium-Free Alginate Hydrogels with Tunable Physical and Mechanical Properties and Improved Biocompatibility. Biomacromolecules 2013; 14:2004-13. [DOI: 10.1021/bm400352d] [Citation(s) in RCA: 204] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Changhyun Lee
- Department of Biotechnology, Yonsei University, Seoul 120-749, Republic
of Korea
| | - Jisoo Shin
- Department of Biotechnology, Yonsei University, Seoul 120-749, Republic
of Korea
| | - Jung Seung Lee
- Department of Biotechnology, Yonsei University, Seoul 120-749, Republic
of Korea
| | | | | | - Soong Ho Um
- School of Chemical
Engineering and SKKU Advanced Institute of
Nanotechnology (SAINT), Sungkyunkwan University, Suwon 440-746, Republic of Korea
| | - Dong-Ik Kim
- Division of Vascular
Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul 135-710, Republic
of Korea
| | | | - Seung-Woo Cho
- Department of Biotechnology, Yonsei University, Seoul 120-749, Republic
of Korea
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34
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Zhou D, Ito Y. Inorganic material surfaces made bioactive by immobilizing growth factors for hard tissue engineering. RSC Adv 2013. [DOI: 10.1039/c3ra23313h] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
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35
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Immobilization of epidermal growth factor on titanium and stainless steel surfaces via dopamine treatment. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2012. [DOI: 10.1016/j.msec.2012.07.039] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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36
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Zustiak SP, Wei Y, Leach JB. Protein-hydrogel interactions in tissue engineering: mechanisms and applications. TISSUE ENGINEERING PART B-REVIEWS 2012; 19:160-71. [PMID: 23150926 DOI: 10.1089/ten.teb.2012.0458] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Recent advances in our understanding of the sophistication of the cellular microenvironment and the dynamics of tissue remodeling during development, disease, and regeneration have increased our appreciation of the current challenges facing tissue engineering. As this appreciation advances, we are better equipped to approach problems in the biology and therapeutics of even more complex fields, such as stem cells and cancer. To aid in these studies, as well as the established areas of tissue engineering, including cardiovascular, musculoskeletal, and neural applications, biomaterials scientists have developed an extensive array of materials with specifically designed chemical, mechanical, and biological properties. Herein, we highlight an important topic within this area of biomaterials research, protein-hydrogel interactions. Due to inherent advantages of hydrated scaffolds for soft tissue engineering as well as specialized bioactivity of proteins and peptides, this field is well-posed to tackle major needs within emerging areas of tissue engineering. We provide an overview of the major modes of interactions between hydrogels and proteins (e.g., weak forces, covalent binding, affinity binding), examples of applications within growth factor delivery and three-dimensional scaffolds, and finally future directions within the area of hydrogel-protein interactions that will advance our ability to control the cell-biomaterial interface.
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Affiliation(s)
- Silviya P Zustiak
- National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD, USA
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37
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Yang K, Lee JS, Kim J, Lee YB, Shin H, Um SH, Kim JB, Park KI, Lee H, Cho SW. Polydopamine-mediated surface modification of scaffold materials for human neural stem cell engineering. Biomaterials 2012; 33:6952-64. [PMID: 22809643 DOI: 10.1016/j.biomaterials.2012.06.067] [Citation(s) in RCA: 254] [Impact Index Per Article: 21.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2012] [Accepted: 06/25/2012] [Indexed: 10/28/2022]
Abstract
Surface modification of tissue engineering scaffolds and substrates is required for improving the efficacy of stem cell therapy by generating physicochemical stimulation promoting proliferation and differentiation of stem cells. However, typical surface modification methods including chemical conjugation or physical absorption have several limitations such as multistep, complicated procedures, surface denaturation, batch-to-batch inconsistencies, and low surface conjugation efficiency. In this study, we report a mussel-inspired, biomimetic approach to surface modification for efficient and reliable manipulation of human neural stem cell (NSC) differentiation and proliferation. Our study demonstrates that polydopamine coating facilitates highly efficient, simple immobilization of neurotrophic growth factors and adhesion peptides onto polymer substrates. The growth factor or peptide-immobilized substrates greatly enhance differentiation and proliferation of human NSCs (human fetal brain-derived NSCs and human induced pluripotent stem cell-derived NSCs) at a level comparable or greater than currently available animal-derived coating materials (Matrigel) with safety issues. Therefore, polydopamine-mediated surface modification can provide a versatile platform technology for developing chemically defined, safe, functional substrates and scaffolds for therapeutic applications of human NSCs.
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Affiliation(s)
- Kisuk Yang
- Department of Biotechnology, Yonsei University, Seodaemun-gu, Seoul, Republic of Korea
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38
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39
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Surface immobilization of bone morphogenetic protein 2 via a self-assembled monolayer formation induces cell differentiation. Acta Biomater 2012; 8:772-80. [PMID: 22040684 DOI: 10.1016/j.actbio.2011.10.019] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2011] [Revised: 10/12/2011] [Accepted: 10/13/2011] [Indexed: 11/23/2022]
Abstract
Bone extracellular matrix consists of a network of proteins in which growth factors, like bone morphogenetic protein 2 (BMP-2), are embedded and released upon matrix turnover and degradation. Recombinant human (rh)BMP-2 shows promise in enhancing bone fracture repair, although issues regarding finding a suitable delivery system still limit its extensive clinical use. The aim of this study is to determine which cell activities are triggered by the presentation of immobilized rhBMP-2. For this purpose gold surfaces were first decorated with a self-assembled monolayer consisting of a hetero-bifunctional linker. rhBMP-2 was covalently bound to the surfaces via this linker and used to investigate the cellular responses of C2C12 myoblasts. We show that covalently immobilized rhBMP-2 (iBMP-2) initiates short-term signaling events. Using a BMP-responsive reporter gene assay and western blotting to monitor phosphorylation of Smad1/5/8 we prove that iBMP-2 activates BMP-dependent signal transduction. Furthermore, we demonstrate that iBMP-2 suppresses myotube formation and promotes the osteoblast phenotype in C2C12 cells. The bioactivity of surface-bound rhBMP-2 presented in this study is not due to its release into the medium. As such, our simple approach paves the way for the controlled local presentation of immobilized growth factors, limiting degradation while still maintaining biological activity.
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40
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Nakaji-Hirabayashi T, Kato K, Iwata H. Improvement of neural stem cell survival in collagen hydrogels by incorporating laminin-derived cell adhesive polypeptides. Bioconjug Chem 2012; 23:212-21. [PMID: 22229651 DOI: 10.1021/bc200481v] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Cell transplantation is a potential methodology for the treatment of Parkinson's disease. However, the therapeutic effect is limited by poor viability of transplanted cells. To overcome this problem, we hypothesized that a dual step approach, whereby providing an adhesive substrate for transplanted cells and, at the same time, by preventing the infiltration of activated microglia into the site of transplantation promotes the cell survival. To establish above conditions, attempts were made to prepare 3-D matrices using collagen hydrogels that incorporated integrin-binding polypeptides derived from laminin-1. Tandem combinations of laminin globular domains as well as a single globular domain 3 were prepared using recombinant DNA technology as a fusion with hexahistidine and bound to metal chelated surfaces to screen for the adhesion and proliferation of neural stem cells (NSCs). In addition, a small peptide derived from laminin γ1 chain was prepared and heterodimerized with the globular domain-containing chimeric proteins to evaluate for the enhancement of integrin-mediated cell adhesion. As a result, a heterodimer consisting of the globular domain 3 of the laminin α1 chain and the peptide from the laminin γ1 chain was selected as the best candidate among the polypeptides studied here for the incorporation into a collagen hydrogel. It was shown that the survival of NSCs was indeed promoted in the collagen hydrogel incorporating the heterodimer compared to the pure collagen hydrogel.
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Affiliation(s)
- Tadashi Nakaji-Hirabayashi
- Institute for Frontier Medical Sciences, Kyoto University, 53 Kawahara-cho, Shogoin, Sakyo-ku, Kyoto 606-8507, Japan
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Hudalla GA, Murphy WL. Chemically well-defined self-assembled monolayers for cell culture: toward mimicking the natural ECM. SOFT MATTER 2011; 7:9561-9571. [PMID: 25214878 PMCID: PMC4159093 DOI: 10.1039/c1sm05596h] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
The extracellular matrix (ECM) is a network of biological macromolecules that surrounds cells within tissues. In addition to serving as a physical support, the ECM actively influences cell behavior by providing sites for cell adhesion, establishing soluble factor gradients, and forming interfaces between different cell types within a tissue. Thus, elucidating the influence of ECM-derived biomolecules on cell behavior is an important aspect of cell biology. Self-assembled monolayers (SAMs) have emerged as promising tools to mimic the ECM as they provide chemically well-defined substrates that can be precisely tailored for specific cell culture applications, and their application in this regard is the focus of this review. In particular, this review will describe various approaches to prepare SAM-based culture substrates via non-specific adsorption, covalent immobilization, or non-covalent sequestering of ECM-derived biomolecules. Additionally, this review will highlight SAMs that present ECM-derived biomolecules to cells to probe the role of these molecules in cell-ECM interactions, including cell attachment, spreading and 'outside-in' signaling via focal adhesion complex formation. Finally, this review will introduce SAMs that can present or sequester soluble signaling molecules, such as growth factors, to study the influence of localized soluble factor activity on cell behavior. Together, these examples demonstrate that the chemical specificity and variability afforded by SAMs can provide robust, well-defined substrates for cell culture that can simplify experimental design and analysis by eliminating many of the confounding factors associated with traditional culture substrates.
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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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Kwok CW, Strähle U, Zhao Y, Scharnweber T, Weigel S, Welle A. Selective immobilization of Sonic hedgehog on benzylguanine terminated patterned self-assembled monolayers. Biomaterials 2011; 32:6719-28. [DOI: 10.1016/j.biomaterials.2011.05.069] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2011] [Accepted: 05/24/2011] [Indexed: 11/16/2022]
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Konagaya S, Kato K, Nakaji-Hirabayashi T, Arima Y, Iwata H. Array-based functional screening of growth factors toward optimizing neural stem cell microenvironments. Biomaterials 2011; 32:5015-22. [DOI: 10.1016/j.biomaterials.2011.03.066] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2011] [Accepted: 03/28/2011] [Indexed: 01/28/2023]
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Ley C, Holtmann D, Mangold KM, Schrader J. Immobilization of histidine-tagged proteins on electrodes. Colloids Surf B Biointerfaces 2011; 88:539-51. [PMID: 21840689 DOI: 10.1016/j.colsurfb.2011.07.044] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2011] [Revised: 07/19/2011] [Accepted: 07/19/2011] [Indexed: 10/17/2022]
Abstract
The development of new enzyme immobilization techniques that do not affect catalytic activity or conformation of a protein is an important research task in biotechnology including biosensor applications and heterogeneous reaction systems. One of the most promising approaches for controlled protein immobilization is based on the immobilized metal ion affinity chromatography (IMAC) principle originally developed for protein purification. Here we describe the current status and future perspectives of immobilization of His-tagged proteins on electrode surfaces. Recombinant proteins comprising histidine-tags or histidine rich native proteins have a strong affinity to transition metal ions. For metal ion immobilization at the electrode surface different matrices can be used such as self-assembled monolayers or conductive polymers. This specific technique allows a reversible immobilization of histidine-tagged proteins at electrodes in a defined orientation which is an important prerequisite for efficient electron transfer between the electrode and the biomolecule. Any application requiring immobilized biocatalysts on electrodes can make use of this immobilization approach, making future biosensors and biocatalytic technologies more sensitive, simpler, reusable and less expensive while only requiring mild enzyme modifications.
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Affiliation(s)
- Claudia Ley
- Biochemical Engineering Group, Karl-Winnacker-Institut, DECHEMA e.V., Theodor-Heuss-Allee 25, 60486 Frankfurt am Main, Germany
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Egawa EY, Kato K, Hiraoka M, Nakaji-Hirabayashi T, Iwata H. Enhanced proliferation of neural stem cells in a collagen hydrogel incorporating engineered epidermal growth factor. Biomaterials 2011; 32:4737-43. [DOI: 10.1016/j.biomaterials.2011.03.033] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2011] [Accepted: 03/12/2011] [Indexed: 11/30/2022]
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46
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Toda H, Yamamoto M, Kohara H, Tabata Y. Orientation-regulated immobilization of Jagged1 on glass substrates for ex vivo proliferation of a bone marrow cell population containing hematopoietic stem cells. Biomaterials 2011; 32:6920-8. [PMID: 21723602 DOI: 10.1016/j.biomaterials.2011.05.093] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2011] [Accepted: 05/30/2011] [Indexed: 10/18/2022]
Abstract
Notch signaling has been recognized as a key pathway to regulate the proliferation and differentiation of hematopoietic stem cells (HSC). In this study, the orientation-regulated immobilization of a Notch ligand was designed to achieve the efficient Notch ligand-receptor recognition for the ex vivo proliferation of a bone marrow cell population containing HSC. Protein A was chemically conjugated onto aminated glass substrates, followed by immobilizing a recombinant chimeric protein of Jagged1 and Fc domain (Jagged1-Fc) through the biospecific binding between protein A and Fc domain. Protein A adsorption was suppressed for the Jagged1-Fc-immobilized substrates, in contrast to the Jagged1-Fc-coated ones, indicating the orientation-regulated immobilization of Jagged1-Fc for the substrates. Mouse lineage negative cells (Lin(-)) were cultured on the Jagged1-Fc-immobilized substrates. Flow cytometric analyses demonstrated that c-Kit(+), Sca-1(+), Lin(-), and CD34(-) cells of an HSC population was significantly proliferated on the Jagged1-Fc-immobilized substrates 6 days after culture, whereas no proliferation was observed for the Jagged1-Fc-coated substrates in a random manner or Jagged1-Fc-immobilized ones with a Notch signaling inhibitor. It is concluded that the orientation-regulated immobilization of Jagged1-Fc increased the efficiency of Jagged1 to recognize the Notch receptors, resulting in the promoted ex vivo proliferation of the HSC population.
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Affiliation(s)
- Hiroyuki Toda
- Department of Biomaterials, Institute for Frontier Medical Sciences, Kyoto University, Sakyo-ku, Kyoto, Japan
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Zhu H, Cao B, Zhen Z, Laxmi AA, Li D, Liu S, Mao C. Controlled growth and differentiation of MSCs on grooved films assembled from monodisperse biological nanofibers with genetically tunable surface chemistries. Biomaterials 2011; 32:4744-52. [PMID: 21507480 DOI: 10.1016/j.biomaterials.2011.03.030] [Citation(s) in RCA: 84] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2011] [Accepted: 03/12/2011] [Indexed: 12/13/2022]
Abstract
The search for a cell-supporting scaffold with controlled topography and surface chemistry is a constant topic within tissue engineering. Here we have employed M13 phages, which are genetically modifiable biological nanofibers (∼ 880 nm long and ∼ 6.6 nm wide) non-toxic to human beings, to form films for supporting the growth of mesencymal stem cells (MSCs). Films were built from nearly parallel phage bundles separated by grooves. The bundles can guide the elongation and alignment of MSCs along themselves. Phage with peptides displayed on the surface exhibited different control over the fine morphologies and differentiation of the MSCs. When an osteogenic peptide was displayed on the surface of phage, the proliferation and differentiation of MSCs into osteoblasts were significantly accelerated. The use of the grooved phage films allows us to control the proliferation and differentiation of MSCs by simply controlling the concentrations of phages as well as the peptides displayed on the surface of the phages. This work will advance our understanding on the interaction between stem cells and proteins.
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Affiliation(s)
- Haibao Zhu
- Department of Chemistry & Biochemistry, Stephenson Life Sciences Research Center, University of Oklahoma, Norman, OK 73019, USA
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Design of culture substrates for large-scale expansion of neural stem cells. Biomaterials 2011; 32:992-1001. [DOI: 10.1016/j.biomaterials.2010.10.008] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2010] [Accepted: 10/06/2010] [Indexed: 12/13/2022]
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Samanta D, Sarkar A. Immobilization of bio-macromolecules on self-assembled monolayers: methods and sensor applications. Chem Soc Rev 2011; 40:2567-92. [DOI: 10.1039/c0cs00056f] [Citation(s) in RCA: 313] [Impact Index Per Article: 24.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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