1
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Whitewolf J, Highley CB. Conformal encapsulation of mammalian stem cells using modified hyaluronic acid. J Mater Chem B 2024; 12:7122-7134. [PMID: 38946474 PMCID: PMC11268093 DOI: 10.1039/d4tb00223g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2024] [Accepted: 06/05/2024] [Indexed: 07/02/2024]
Abstract
Micro- and nanoencapsulation of cells has been studied as a strategy to protect cells from environmental stress and promote survival during delivery. Hydrogels used in encapsulation can be modified to influence cell behaviors and direct assembly in their surroundings. Here, we report a system that conformally encapsulated stem cells using hyaluronic acid (HA). We successfully modified HA with lipid, thiol, and maleimide pendant groups to facilitate a hydrogel system in which HA was deposited onto cell plasma membranes and subsequently crosslinked through thiol-maleimide click chemistry. We demonstrated conformal encapsulation of both neural stem cells (NSCs) and mesenchymal stromal cells (MSCs), with viability of both cell types greater than 90% after encapsulation. Additional material could be added to the conformal hydrogel through alternating addition of thiol-modified and maleimide-modified HA in a layering process. After encapsulation, we tracked egress and viability of the cells over days and observed differential responses of cell types to conformal hydrogels both according to cell type and the amount of material deposited on the cell surfaces. Through the design of the conformal hydrogels, we showed that multicellular assembly could be created in suspension and that encapsulated cells could be immobilized on surfaces. In conjunction with photolithography, conformal hydrogels enabled rapid assembly of encapsulated cells on hydrogel substrates with resolution at the scale of 100 μm.
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Affiliation(s)
- Jack Whitewolf
- Department of Biomedical Engineering, University of Virginia, Charlottesville, VA 22903, USA.
| | - Christopher B Highley
- Department of Biomedical Engineering, University of Virginia, Charlottesville, VA 22903, USA.
- Department of Chemical Engineering, University of Virginia, Charlottesville, VA 22903, USA
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2
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Karanfil AS, Louis F, Sowa Y, Matsusaki M. Polyelectrolyte nanofilms on cell surface can induce brown adipogenic differentiation of DFATs. Biochem Biophys Res Commun 2024; 733:150432. [PMID: 39043001 DOI: 10.1016/j.bbrc.2024.150432] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2024] [Accepted: 07/19/2024] [Indexed: 07/25/2024]
Abstract
Obesity and its related health issues significantly burden public health systems. Brown adipose tissue holds promise for addressing metabolic disorders and balancing the body's energy, making it a key research focus. Stimulating brown adipogenesis from stem cells could advance regenerative medicine and healthcare. In our previous research, we discovered that poly-l-lysine (PLL) significantly stimulates brown adipogenesis in three-dimensional differentiation of dedifferentiated fat cells (DFATs) within fibrin gels. In this study, we evaluated polyelectrolyte (PE) nanofilms made of PLL and dextran sulfate, applied directly to DFAT surfaces to improve brown adipogenic differentiation through an innovative approach. This approach involved coating the DFAT surfaces with PE nanofilms, forming a multilayer structure that not only provided a supportive matrix but also facilitated the adsorption of essential molecules like T3 and insulin for brown adipogenesis. DFATs coated with three PE layers and encapsulated in fibrin gel showed a significant increase in the adipogenic marker UCP1 gene expression and content. This PLL-based PE nanofilm coating on DFAT surfaces can be a novel and crucial technology for promoting brown adipogenesis in regenerative medicine and healthcare.
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Affiliation(s)
- Aslı Sena Karanfil
- Department of Applied Chemistry, Graduate School of Osaka University, Japan
| | - Fiona Louis
- Joint Research Laboratory (TOPPAN) for Advanced Cell Regulatory Chemistry, Graduate School of Osaka University, Japan
| | - Yoshihiro Sowa
- Department of Plastic Surgery, Jichi Medical University, Shimotsuke, Tochigi Japan; Department of Plastic and Reconstructive Surgery, Graduate School of Medical Sciences, Kyoto Prefectural University of Medicine, Japan; Department of Plastic and Reconstructive Surgery, Graduate School of Medicine, Kyoto University, Japan
| | - Michiya Matsusaki
- Department of Applied Chemistry, Graduate School of Osaka University, Japan; Joint Research Laboratory (TOPPAN) for Advanced Cell Regulatory Chemistry, Graduate School of Osaka University, Japan.
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3
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Yang H, Yao L, Wang Y, Chen G, Chen H. Advancing cell surface modification in mammalian cells with synthetic molecules. Chem Sci 2023; 14:13325-13345. [PMID: 38033886 PMCID: PMC10685406 DOI: 10.1039/d3sc04597h] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Accepted: 10/30/2023] [Indexed: 12/02/2023] Open
Abstract
Biological cells, being the fundamental entities of life, are widely acknowledged as intricate living machines. The manipulation of cell surfaces has emerged as a progressively significant domain of investigation and advancement in recent times. Particularly, the alteration of cell surfaces using meticulously crafted and thoroughly characterized synthesized molecules has proven to be an efficacious means of introducing innovative functionalities or manipulating cells. Within this realm, a diverse array of elegant and robust strategies have been recently devised, including the bioorthogonal strategy, which enables selective modification. This review offers a comprehensive survey of recent advancements in the modification of mammalian cell surfaces through the use of synthetic molecules. It explores a range of strategies, encompassing chemical covalent modifications, physical alterations, and bioorthogonal approaches. The review concludes by addressing the present challenges and potential future opportunities in this rapidly expanding field.
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Affiliation(s)
- He Yang
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University 199 Ren'ai Road Suzhou 215123 Jiangsu P. R. China
| | - Lihua Yao
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University 199 Ren'ai Road Suzhou 215123 Jiangsu P. R. China
| | - Yichen Wang
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University 199 Ren'ai Road Suzhou 215123 Jiangsu P. R. China
| | - Gaojian Chen
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University 199 Ren'ai Road Suzhou 215123 Jiangsu P. R. China
- Center for Soft Condensed Matter Physics and Interdisciplinary Research, Soochow University Suzhou 215006 Jiangsu P. R. China
| | - Hong Chen
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University 199 Ren'ai Road Suzhou 215123 Jiangsu P. R. China
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4
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Li J, Parakhonskiy BV, Skirtach AG. A decade of developing applications exploiting the properties of polyelectrolyte multilayer capsules. Chem Commun (Camb) 2023; 59:807-835. [PMID: 36472384 DOI: 10.1039/d2cc04806j] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Transferring the layer-by-layer (LbL) coating approach from planar surfaces to spherical templates and subsequently dissolving these templates leads to the fabrication of polyelectrolyte multilayer capsules. The versatility of the coatings of capsules and their flexibility upon bringing in virtually any material into the coatings has quickly drawn substantial attention. Here, we provide an overview of the main developments in this field, highlighting the trends in the last decade. In the beginning, various methods of encapsulation and release are discussed followed by a broad range of applications, which were developed and explored. We also outline the current trends, where the range of applications is continuing to grow, including addition of whole new and different application areas.
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Affiliation(s)
- Jie Li
- Nano-Biotechnology Laboratory, Department of Biotechnology, Faculty of Bioscience Engineering, Ghent University, 9000 Ghent, Belgium.
| | - Bogdan V Parakhonskiy
- Nano-Biotechnology Laboratory, Department of Biotechnology, Faculty of Bioscience Engineering, Ghent University, 9000 Ghent, Belgium.
| | - Andre G Skirtach
- Nano-Biotechnology Laboratory, Department of Biotechnology, Faculty of Bioscience Engineering, Ghent University, 9000 Ghent, Belgium.
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5
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Biomaterials for Cell-Surface Engineering and Their Efficacy. J Funct Biomater 2021; 12:jfb12030041. [PMID: 34287337 PMCID: PMC8293134 DOI: 10.3390/jfb12030041] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Revised: 07/07/2021] [Accepted: 07/09/2021] [Indexed: 12/30/2022] Open
Abstract
Literature in the field of stem cell therapy indicates that, when stem cells in a state of single-cell suspension are injected systemically, they show poor in vivo survival, while such cells show robust cell survival and regeneration activity when transplanted in the state of being attached on a biomaterial surface. Although an attachment-deprived state induces anoikis, when cell-surface engineering technology was adopted for stem cells in a single-cell suspension state, cell survival and regenerative activity dramatically improved. The biochemical signal coming from ECM (extracellular matrix) molecules activates the cell survival signal transduction pathway and prevents anoikis. According to the target disease, various therapeutic cells can be engineered to improve their survival and regenerative activity, and there are several types of biomaterials available for cell-surface engineering. In this review, biomaterial types and application strategies for cell-surface engineering are presented along with their expected efficacy.
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6
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Lee H, Kim N, Rheem HB, Kim BJ, Park JH, Choi IS. A Decade of Advances in Single-Cell Nanocoating for Mammalian Cells. Adv Healthc Mater 2021; 10:e2100347. [PMID: 33890422 DOI: 10.1002/adhm.202100347] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2021] [Revised: 04/06/2021] [Indexed: 12/14/2022]
Abstract
Strategic advances in the single-cell nanocoating of mammalian cells have noticeably been made during the last decade, and many potential applications have been demonstrated. Various cell-coating strategies have been proposed via adaptation of reported methods in the surface sciences and/or materials identification that ensure the sustainability of labile mammalian cells during chemical manipulation. Here an overview of the methodological development and potential applications to the healthcare sector in the nanocoating of mammalian cells made during the last decade is provided. The materials used for the nanocoating are categorized into polymers, hydrogels, polyphenolic compounds, nanoparticles, and minerals, and the corresponding strategies are described under the given set of materials. It also suggests, as a future direction, the creation of the cytospace system that is hierarchically composed of the physically separated but mutually interacting cellular hybrids.
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Affiliation(s)
- Hojae Lee
- Center for Cell‐Encapsulation Research Department of Chemistry KAIST Daejeon 34141 Korea
| | - Nayoung Kim
- Center for Cell‐Encapsulation Research Department of Chemistry KAIST Daejeon 34141 Korea
| | - Hyeong Bin Rheem
- Center for Cell‐Encapsulation Research Department of Chemistry KAIST Daejeon 34141 Korea
| | - Beom Jin Kim
- Department of Chemistry University of Ulsan Ulsan 44610 Korea
| | - Ji Hun Park
- Department of Science Education Ewha Womans University Seoul 03760 Korea
| | - Insung S. Choi
- Center for Cell‐Encapsulation Research Department of Chemistry KAIST Daejeon 34141 Korea
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7
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Zhang Z, Liu Q, Tan J, Zhan X, Liu T, Wang Y, Lu G, Wu M, Zhang Y. Coating with flexible DNA network enhanced T-cell activation and tumor killing for adoptive cell therapy. Acta Pharm Sin B 2021; 11:1965-1977. [PMID: 34386331 PMCID: PMC8343197 DOI: 10.1016/j.apsb.2021.04.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2021] [Revised: 03/11/2021] [Accepted: 03/28/2021] [Indexed: 12/12/2022] Open
Abstract
Adoptive cell therapy (ACT) is an emerging powerful cancer immunotherapy, which includes a complex process of genetic modification, stimulation and expansion. During these in vitro or ex vivo manipulation, sensitive cells are inescapability subjected to harmful external stimuli. Although a variety of cytoprotection strategies have been developed, their application on ACT remains challenging. Herein, a DNA network is constructed on cell surface by rolling circle amplification (RCA), and T cell-targeted trivalent tetrahedral DNA nanostructure is used as a rigid scaffold to achieve high-efficient and selective coating for T cells. The cytoprotective DNA network on T-cell surface makes them aggregate over time to form cell clusters, which exhibit more resistance to external stimuli and enhanced activities in human peripheral blood mononuclear cells and liver cancer organoid killing model. Overall, this work provides a novel strategy for in vitro T cell-selective protection, which has a great potential for application in ACT.
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Affiliation(s)
- Ziyan Zhang
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
- National and Local United Engineering Lab of Druggability and New Drugs Evaluation, Sun Yat-sen University, Guangzhou 510006, China
| | - Qiaojuan Liu
- Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou 510080, China
| | - Jizhou Tan
- The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China
| | - Xiaoxia Zhan
- The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China
| | - Ting Liu
- The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China
| | - Yuting Wang
- Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou 510080, China
| | - Gen Lu
- Guangzhou Institute of Pediatrics, Guangzhou Women and Children's Medical Centre, Guangzhou Medical University, Guangzhou 510080, China
| | - Minhao Wu
- Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou 510080, China
| | - Yuanqing Zhang
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
- National and Local United Engineering Lab of Druggability and New Drugs Evaluation, Sun Yat-sen University, Guangzhou 510006, China
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8
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Choi Y, Phan B, Tanaka M, Hong J, Choi J. Methods and Applications of Biomolecular Surface Coatings on Individual Cells. ACS APPLIED BIO MATERIALS 2020; 3:6556-6570. [DOI: 10.1021/acsabm.0c00867] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Yonghyun Choi
- School of Integrative Engineering, Chung-Ang University, Seoul 06974, Republic of Korea
| | - Binh Phan
- School of Integrative Engineering, Chung-Ang University, Seoul 06974, Republic of Korea
| | - Masayoshi Tanaka
- Department of Chemical Science and Engineering, Tokyo Institute of Technology, Tokyo 152-8552, Japan
| | - Jinkee Hong
- Department of Chemical and Biomolecular Engineering, Yonsei University, Seoul 03722, Republic of Korea
| | - Jonghoon Choi
- School of Integrative Engineering, Chung-Ang University, Seoul 06974, Republic of Korea
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9
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Youn W, Kim JY, Park J, Kim N, Choi H, Cho H, Choi IS. Single-Cell Nanoencapsulation: From Passive to Active Shells. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2020; 32:e1907001. [PMID: 32255241 DOI: 10.1002/adma.201907001] [Citation(s) in RCA: 49] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2019] [Revised: 12/09/2019] [Accepted: 12/23/2019] [Indexed: 06/11/2023]
Abstract
Single-cell nanoencapsulation is an emerging field in cell-surface engineering, emphasizing the protection of living cells against external harmful stresses in vitro and in vivo. Inspired by the cryptobiotic state found in nature, cell-in-shell structures are formed, which are called artificial spores and which show suppression or retardation in cell growth and division and enhanced cell survival under harsh conditions. The property requirements of the shells suggested for realization of artificial spores, such as durability, permselectivity, degradability, and functionalizability, are demonstrated with various cytocompatible materials and processes. The first-generation shells in single-cell nanoencapsulation are passive in the operation mode, and do not biochemically regulate the cellular metabolism or activities. Recent advances indicate that the field has shifted further toward the formation of active shells. Such shells are intimately involved in the regulation and manipulation of biological processes. Not only endowing the cells with new properties that they do not possess in their native forms, active shells also regulate cellular metabolism and/or rewire biological pathways. Recent developments in shell formation for microbial and mammalian cells are discussed and an outlook on the field is given.
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Affiliation(s)
- Wongu Youn
- Center for Cell-Encapsulation Research, Department of Chemistry, KAIST, Daejeon, 34141, South Korea
| | - Ji Yup Kim
- Center for Cell-Encapsulation Research, Department of Chemistry, KAIST, Daejeon, 34141, South Korea
| | - Joohyouck Park
- Center for Cell-Encapsulation Research, Department of Chemistry, KAIST, Daejeon, 34141, South Korea
| | - Nayoung Kim
- Center for Cell-Encapsulation Research, Department of Chemistry, KAIST, Daejeon, 34141, South Korea
| | - Hyunwoo Choi
- Center for Cell-Encapsulation Research, Department of Chemistry, KAIST, Daejeon, 34141, South Korea
| | - Hyeoncheol Cho
- Center for Cell-Encapsulation Research, Department of Chemistry, KAIST, Daejeon, 34141, South Korea
| | - Insung S Choi
- Center for Cell-Encapsulation Research, Department of Chemistry, KAIST, Daejeon, 34141, South Korea
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10
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Guo Z, Richardson JJ, Kong B, Liang K. Nanobiohybrids: Materials approaches for bioaugmentation. SCIENCE ADVANCES 2020; 6:eaaz0330. [PMID: 32206719 PMCID: PMC7080450 DOI: 10.1126/sciadv.aaz0330] [Citation(s) in RCA: 61] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/06/2019] [Accepted: 12/20/2019] [Indexed: 05/10/2023]
Abstract
Nanobiohybrids, synthesized by integrating functional nanomaterials with living systems, have emerged as an exciting branch of research at the interface of materials engineering and biological science. Nanobiohybrids use synthetic nanomaterials to impart organisms with emergent properties outside their scope of evolution. Consequently, they endow new or augmented properties that are either innate or exogenous, such as enhanced tolerance against stress, programmed metabolism and proliferation, artificial photosynthesis, or conductivity. Advances in new materials design and processing technologies made it possible to tailor the physicochemical properties of the nanomaterials coupled with the biological systems. To date, many different types of nanomaterials have been integrated with various biological systems from simple biomolecules to complex multicellular organisms. Here, we provide a critical overview of recent developments of nanobiohybrids that enable new or augmented biological functions that show promise in high-tech applications across many disciplines, including energy harvesting, biocatalysis, biosensing, medicine, and robotics.
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Affiliation(s)
- Ziyi Guo
- School of Chemical Engineering, University of New South Wales, Sydney, NSW 2052, Australia
- Graduate School of Biomedical Engineering, and Australian Centre for NanoMedicine, University of New South Wales, Sydney, NSW 2052, Australia
| | - Joseph J. Richardson
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology and the Department of Chemical Engineering, The University of Melbourne, Parkville, VIC 3010, Australia
| | - Biao Kong
- Department of Chemistry, Shanghai Key Lab of Molecular Catalysis and Innovative Materials, iChEM, Fudan University, Shanghai 200438 P. R. China
- Corresponding author. (B.K.); (K.L.)
| | - Kang Liang
- School of Chemical Engineering, University of New South Wales, Sydney, NSW 2052, Australia
- Graduate School of Biomedical Engineering, and Australian Centre for NanoMedicine, University of New South Wales, Sydney, NSW 2052, Australia
- Corresponding author. (B.K.); (K.L.)
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11
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Han U, Kim YJ, Kim W, Park JH, Hong J. Construction of nano-scale cellular environments by coating a multilayer nanofilm on the surface of human induced pluripotent stem cells. NANOSCALE 2019; 11:13541-13551. [PMID: 31290516 DOI: 10.1039/c9nr02375e] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Interactions with peripheral environments, such as extracellular matrix (ECM) and other cells, and their balance play a crucial role in the maintenance of pluripotency and self-renewal of human pluripotent stem cells. In this study, we focused on a nano-sized artificial cellular environment that is directly attached to the cytoplasmic membrane as a facile method that can effect intercellular interactions at the single-cell level. We designed multilayered nanofilms that are self-assembled on the surface of human induced pluripotent stem cells (iPSCs), by repetitive adsorption of fibronectin and heparin or chondroitin sulfate. However, the surface modification process could also lead to the loss of cell-cell adhesion, which may result in apoptotic cell death. We investigated the proliferation and pluripotency of the iPSCs coated with the nanofilm in order to establish the suitable nanofilm structure and coating conditions. As a result, the cell viability reduced with the increase in the duration of the coating process, but the undifferentiated state and proliferation of the cells were maintained until 2 bilayers were coated. To suppress the dissociation-induced apoptosis, Y-27632, the Rho-associated kinase inhibitor (ROCKi), was added to the coating solution; this allowed the coating of up to 4 bilayers of the nanofilm onto the iPSCs. These results are expected to accelerate the pace of iPSC studies on 3-dimensional cultures and naïve pluripotency, in which the regulation of cellular interactions plays a critical role.
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Affiliation(s)
- Uiyoung Han
- Department of Chemical & Biomolecular Engineering, College of Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea.
| | - Yu Jin Kim
- Department of Medical Biomaterials Engineering, Kangwon National University, Chuncheon, Gangwon-do 24341, Republic of Korea.
| | - Wijin Kim
- Department of Medical Biomaterials Engineering, Kangwon National University, Chuncheon, Gangwon-do 24341, Republic of Korea.
| | - Ju Hyun Park
- Department of Medical Biomaterials Engineering, Kangwon National University, Chuncheon, Gangwon-do 24341, Republic of Korea.
| | - Jinkee Hong
- Department of Chemical & Biomolecular Engineering, College of Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea.
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12
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Layer-by-layer assembly as a robust method to construct extracellular matrix mimic surfaces to modulate cell behavior. Prog Polym Sci 2019. [DOI: 10.1016/j.progpolymsci.2019.02.004] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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13
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Hwang JH, Han U, Yang M, Choi Y, Choi J, Lee JM, Jung HS, Hong J, Hong JH. Artificial cellular nano-environment composed of collagen-based nanofilm promotes osteogenic differentiation of mesenchymal stem cells. Acta Biomater 2019; 86:247-256. [PMID: 30594632 DOI: 10.1016/j.actbio.2018.12.044] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2018] [Revised: 12/17/2018] [Accepted: 12/26/2018] [Indexed: 12/18/2022]
Abstract
In regenerative medicine, the generation of therapeutic stem cells and tissue engineering are important for replacing damaged tissues. Numerous studies have attempted to produce cellular components that mimic the native tissue for gaining optimal function. Particularly, the extracellular matrix (ECM) composition plays an important role in cellular functions including determining the fates of mesenchymal stem cells (MSCs). Here, we evaluated the osteogenic effects of a nanofilm in which oppositely charged polyelectrolytes were alternately adsorbed onto the cell surface to create an artificial ECM environment for single MSCs. Interestingly, nanofilm composed of collagen (Col) and alginate (AA) showed relatively high stiffness and MSCs coated with the Col/AA nanofilm showed increased osteogenic differentiation efficiency compared to other nanofilm-coated MSCs. Further analysis revealed that the Col/AA nanofilm coating stimulated osteogenesis by activating transcriptional coactivators with the PDZ binding motif through extracellular signal-related kinase and p38 MAPK signaling. This nano-sized cellular coating will facilitate the development of nanotechnology for controlling cellular functions and advance stem cell-based clinical applications for regenerative medicine. STATE OF SIGNIFICANCE: In this study, we developed an artificial cellular nano-environment formed by multilayer nanofilms. We demonstrated that the nanofilms introduced to mesenchymal stem cells (MSCs) stimulate osteogenic differentiation by regulating intracellular signaling. Among the various nanofilm combinations, the induction of osteogenic gene transcription in collagen (Col) and alginate (AA) film-coated MSCs was the most pronounced compared to that on other nanofilms. A minimum number of Col/AA nanofilm bilayers (n = 2) was required for effective induction of MSC osteogenic differentiation. In addition, we observed the correlation between the promoting effect of osteogenic differentiation and stiffness of the nanofilm. Our results may be useful for developing a cell coating model system widely applicable in bioengineering and regenerative medicine.
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14
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Ernst AU, Bowers DT, Wang LH, Shariati K, Plesser MD, Brown NK, Mehrabyan T, Ma M. Nanotechnology in cell replacement therapies for type 1 diabetes. Adv Drug Deliv Rev 2019; 139:116-138. [PMID: 30716349 PMCID: PMC6677642 DOI: 10.1016/j.addr.2019.01.013] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2018] [Revised: 01/17/2019] [Accepted: 01/28/2019] [Indexed: 12/12/2022]
Abstract
Islet transplantation is a promising long-term, compliance-free, complication-preventing treatment for type 1 diabetes. However, islet transplantation is currently limited to a narrow set of patients due to the shortage of donor islets and side effects from immunosuppression. Encapsulating cells in an immunoisolating membrane can allow for their transplantation without the need for immunosuppression. Alternatively, "open" systems may improve islet health and function by allowing vascular ingrowth at clinically attractive sites. Many processes that enable graft success in both approaches occur at the nanoscale level-in this review we thus consider nanotechnology in cell replacement therapies for type 1 diabetes. A variety of biomaterial-based strategies at the nanometer range have emerged to promote immune-isolation or modulation, proangiogenic, or insulinotropic effects. Additionally, coating islets with nano-thin polymer films has burgeoned as an islet protection modality. Materials approaches that utilize nanoscale features manipulate biology at the molecular scale, offering unique solutions to the enduring challenges of islet transplantation.
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Affiliation(s)
- Alexander U Ernst
- Department of Biological and Environmental Engineering, Cornell University, Ithaca, NY 14853, USA
| | - Daniel T Bowers
- Department of Biological and Environmental Engineering, Cornell University, Ithaca, NY 14853, USA
| | - Long-Hai Wang
- Department of Biological and Environmental Engineering, Cornell University, Ithaca, NY 14853, USA
| | - Kaavian Shariati
- Department of Biological and Environmental Engineering, Cornell University, Ithaca, NY 14853, USA
| | - Mitchell D Plesser
- Department of Biological and Environmental Engineering, Cornell University, Ithaca, NY 14853, USA
| | - Natalie K Brown
- Department of Biological and Environmental Engineering, Cornell University, Ithaca, NY 14853, USA
| | - Tigran Mehrabyan
- Department of Biological and Environmental Engineering, Cornell University, Ithaca, NY 14853, USA
| | - Minglin Ma
- Department of Biological and Environmental Engineering, Cornell University, Ithaca, NY 14853, USA.
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15
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Liu T, Wang Y, Zhong W, Li B, Mequanint K, Luo G, Xing M. Biomedical Applications of Layer-by-Layer Self-Assembly for Cell Encapsulation: Current Status and Future Perspectives. Adv Healthc Mater 2019; 8:e1800939. [PMID: 30511822 DOI: 10.1002/adhm.201800939] [Citation(s) in RCA: 75] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2018] [Revised: 10/10/2018] [Indexed: 12/23/2022]
Abstract
Encapsulating living cells within multilayer functional shells is a crucial extension of cellular functions and a further development of cell surface engineering. In the last decade, cell encapsulation has been widely utilized in many cutting-edge biomedical fields. Compared with other techniques for cell encapsulation, layer-by-layer (LbL) self-assembly technology, due to the versatility and tunability to fabricate diverse multilayer shells with controllable compositions and structures, is considered as a promising approach for cell encapsulation. This review summarizes the state-of-the-art and potential future biomedical applications of LbL cell encapsulation. First of all, a brief introduction to the LbL self-assembly technique, including assembly mechanisms and technologies, is made. Next, different cell encapsulation strategies by LbL self-assembly techniques are explained. Then, the biomedical applications of LbL cell encapsulation in cell-based biosensors, cell transplantation, cell/molecule delivery, and tissue engineering, are highlighted. Finally, discussions on the current limitations and future perspectives of LbL cell encapsulation are also provided.
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Affiliation(s)
- Tengfei Liu
- Institute of Burn Research; State Key Laboratory of Trauma; Burn and Combined Injury; Southwest Hospital; Third Military Medical University (Army Medical University); Gaotanyan Street Chongqing 400038 China
| | - Ying Wang
- Institute of Burn Research; State Key Laboratory of Trauma; Burn and Combined Injury; Southwest Hospital; Third Military Medical University (Army Medical University); Gaotanyan Street Chongqing 400038 China
| | - Wen Zhong
- Department of Biosystem Engineering; Faculty of Agriculture; University of Manitoba; Winnpeg MB Canada
| | - Bingyun Li
- School of Medicine; West Virginia University; Morgantown WV 26506-9196 USA
| | - Kibret Mequanint
- Department of Chemical and Biochemical Engineering; University of Western; Ontario London N6A 5B9 Canada
| | - Gaoxing Luo
- Institute of Burn Research; State Key Laboratory of Trauma; Burn and Combined Injury; Southwest Hospital; Third Military Medical University (Army Medical University); Gaotanyan Street Chongqing 400038 China
| | - Malcolm Xing
- Institute of Burn Research; State Key Laboratory of Trauma; Burn and Combined Injury; Southwest Hospital; Third Military Medical University (Army Medical University); Gaotanyan Street Chongqing 400038 China
- Department of Mechanical Engineering; Faculty of Engineering; University of Manitoba; Winnipeg MB R3T 2N2 Canada
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Zhang S, Xing M, Li B. Biomimetic Layer-by-Layer Self-Assembly of Nanofilms, Nanocoatings, and 3D Scaffolds for Tissue Engineering. Int J Mol Sci 2018; 19:E1641. [PMID: 29865178 PMCID: PMC6032323 DOI: 10.3390/ijms19061641] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2018] [Revised: 05/29/2018] [Accepted: 05/30/2018] [Indexed: 01/05/2023] Open
Abstract
Achieving surface design and control of biomaterial scaffolds with nanometer- or micrometer-scaled functional films is critical to mimic the unique features of native extracellular matrices, which has significant technological implications for tissue engineering including cell-seeded scaffolds, microbioreactors, cell assembly, tissue regeneration, etc. Compared with other techniques available for surface design, layer-by-layer (LbL) self-assembly technology has attracted extensive attention because of its integrated features of simplicity, versatility, and nanoscale control. Here we present a brief overview of current state-of-the-art research related to the LbL self-assembly technique and its assembled biomaterials as scaffolds for tissue engineering. An overview of the LbL self-assembly technique, with a focus on issues associated with distinct routes and driving forces of self-assembly, is described briefly. Then, we highlight the controllable fabrication, properties, and applications of LbL self-assembly biomaterials in the forms of multilayer nanofilms, scaffold nanocoatings, and three-dimensional scaffolds to systematically demonstrate advances in LbL self-assembly in the field of tissue engineering. LbL self-assembly not only provides advances for molecular deposition but also opens avenues for the design and development of innovative biomaterials for tissue engineering.
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Affiliation(s)
- Shichao Zhang
- Department of Orthopaedics, School of Medicine, West Virginia University, Morgantown, WV 26506, USA.
| | - Malcolm Xing
- Department of Mechanical Engineering, University of Manitoba, Winnipeg, MB R3T 2N2, Canada.
- The Children's Hospital Research Institute of Manitoba, Winnipeg, MB R3E 3P4, Canada.
| | - Bingyun Li
- Department of Orthopaedics, School of Medicine, West Virginia University, Morgantown, WV 26506, USA.
- West Virginia University Cancer Institute, Morgantown, WV 26506, USA.
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