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152
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Mazunin D, Bode JW. Potassium Acyltrifluoroborate (KAT) Ligations are Orthogonal to Thiol-Michaeland SPAAC Reactions: Covalent Dual Immobilization of Proteins onto Synthetic PEG Hydrogels. Helv Chim Acta 2017. [DOI: 10.1002/hlca.201600311] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Dmitry Mazunin
- Laboratorium für Organische Chemie; Department of Chemistry and Applied Biosciences; ETH Zürich; Vladimir-Prelog-Weg 3 CH-8093 Zürich
| | - Jeffrey W. Bode
- Laboratorium für Organische Chemie; Department of Chemistry and Applied Biosciences; ETH Zürich; Vladimir-Prelog-Weg 3 CH-8093 Zürich
- Institute of Transformative Bio-Molecules (WPI-ITbM); Nagoya University; Chikusa, Nagoya 464-8602 Japan
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153
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Uto K, Tsui JH, DeForest CA, Kim DH. Dynamically Tunable Cell Culture Platforms for Tissue Engineering and Mechanobiology. Prog Polym Sci 2017; 65:53-82. [PMID: 28522885 PMCID: PMC5432044 DOI: 10.1016/j.progpolymsci.2016.09.004] [Citation(s) in RCA: 115] [Impact Index Per Article: 16.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Human tissues are sophisticated ensembles of many distinct cell types embedded in the complex, but well-defined, structures of the extracellular matrix (ECM). Dynamic biochemical, physicochemical, and mechano-structural changes in the ECM define and regulate tissue-specific cell behaviors. To recapitulate this complex environment in vitro, dynamic polymer-based biomaterials have emerged as powerful tools to probe and direct active changes in cell function. The rapid evolution of polymerization chemistries, structural modulation, and processing technologies, as well as the incorporation of stimuli-responsiveness, now permit synthetic microenvironments to capture much of the dynamic complexity of native tissue. These platforms are comprised not only of natural polymers chemically and molecularly similar to ECM, but those fully synthetic in origin. Here, we review recent in vitro efforts to mimic the dynamic microenvironment comprising native tissue ECM from the viewpoint of material design. We also discuss how these dynamic polymer-based biomaterials are being used in fundamental cell mechanobiology studies, as well as towards efforts in tissue engineering and regenerative medicine.
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Affiliation(s)
- Koichiro Uto
- Department of Bioengineering, University of Washington, 3720 15th Ave NE, Seattle, WA 98195, United States
| | - Jonathan H. Tsui
- Department of Bioengineering, University of Washington, 3720 15th Ave NE, Seattle, WA 98195, United States
| | - Cole A. DeForest
- Department of Bioengineering, University of Washington, 3720 15th Ave NE, Seattle, WA 98195, United States
- Department of Chemical Engineering, University of Washington, 4000 15th Ave NE, Seattle, WA 98195, United States
| | - Deok-Ho Kim
- Department of Bioengineering, University of Washington, 3720 15th Ave NE, Seattle, WA 98195, United States
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154
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Kim W, Jung J. Polymer brush: a promising grafting approach to scaffolds for tissue engineering. BMB Rep 2017; 49:655-661. [PMID: 27697112 PMCID: PMC5346310 DOI: 10.5483/bmbrep.2016.49.12.166] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2016] [Indexed: 01/21/2023] Open
Abstract
Polymer brush is a soft material unit tethered covalently on the surface of scaffolds. It can induce functional and structural modification of a substrate’s properties. Such surface coating approach has attracted special attentions in the fields of stem cell biology, tissue engineering, and regenerative medicine due to facile fabrication, usability of various polymers, extracellular matrix (ECM)-like structural features, and in vivo stability. Here, we summarized polymer brush-based grafting approaches comparing self-assembled monolayer (SAM)-based coating method, in addition to physico-chemical characterization techniques for surfaces such as wettability, stiffness/elasticity, roughness, and chemical composition that can affect cell adhesion, differentiation, and proliferation. We also reviewed recent advancements in cell biological applications of polymer brushes by focusing on stem cell differentiation and 3D supports/implants for tissue formation. Understanding cell behaviors on polymer brushes in the scale of nanometer length can contribute to systematic understandings of cellular responses at the interface of polymers and scaffolds and their simultaneous effects on cell behaviors for promising platform designs.
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Affiliation(s)
- Woonjung Kim
- Department of Chemistry, Hannam University, Daejeon 34054, Korea
| | - Jongjin Jung
- Department of Chemistry, Hannam University, Daejeon 34054, Korea
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155
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Gao L, Kupfer ME, Jung JP, Yang L, Zhang P, Da Sie Y, Tran Q, Ajeti V, Freeman BT, Fast VG, Campagnola PJ, Ogle BM, Zhang J. Myocardial Tissue Engineering With Cells Derived From Human-Induced Pluripotent Stem Cells and a Native-Like, High-Resolution, 3-Dimensionally Printed Scaffold. Circ Res 2017; 120:1318-1325. [PMID: 28069694 DOI: 10.1161/circresaha.116.310277] [Citation(s) in RCA: 197] [Impact Index Per Article: 28.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/06/2016] [Revised: 12/30/2016] [Accepted: 01/09/2017] [Indexed: 01/31/2023]
Abstract
RATIONALE Conventional 3-dimensional (3D) printing techniques cannot produce structures of the size at which individual cells interact. OBJECTIVE Here, we used multiphoton-excited 3D printing to generate a native-like extracellular matrix scaffold with submicron resolution and then seeded the scaffold with cardiomyocytes, smooth muscle cells, and endothelial cells that had been differentiated from human-induced pluripotent stem cells to generate a human-induced pluripotent stem cell-derived cardiac muscle patch (hCMP), which was subsequently evaluated in a murine model of myocardial infarction. METHODS AND RESULTS The scaffold was seeded with ≈50 000 human-induced pluripotent stem cell-derived cardiomyocytes, smooth muscle cells, and endothelial cells (in a 2:1:1 ratio) to generate the hCMP, which began generating calcium transients and beating synchronously within 1 day of seeding; the speeds of contraction and relaxation and the peak amplitudes of the calcium transients increased significantly over the next 7 days. When tested in mice with surgically induced myocardial infarction, measurements of cardiac function, infarct size, apoptosis, both vascular and arteriole density, and cell proliferation at week 4 after treatment were significantly better in animals treated with the hCMPs than in animals treated with cell-free scaffolds, and the rate of cell engraftment in hCMP-treated animals was 24.5% at week 1 and 11.2% at week 4. CONCLUSIONS Thus, the novel multiphoton-excited 3D printing technique produces extracellular matrix-based scaffolds with exceptional resolution and fidelity, and hCMPs fabricated with these scaffolds may significantly improve recovery from ischemic myocardial injury.
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Affiliation(s)
- Ling Gao
- From the Department of Biomedical Engineering, School of Medicine, School of Engineering, University of Alabama at Birmingham (L.G., V.G.F., J.Z.); Department of Biomedical Engineering, University of Minnesota, Twin Cities, Minneapolis (M.E.K., J.P.J., L.Y., P.Z., B.T.F., B.M.O.); and Department of Biomedical Engineering, University of Wisconsin, Madison (Y.D.S., Q.T., V.A., P.J.C.)
| | - Molly E Kupfer
- From the Department of Biomedical Engineering, School of Medicine, School of Engineering, University of Alabama at Birmingham (L.G., V.G.F., J.Z.); Department of Biomedical Engineering, University of Minnesota, Twin Cities, Minneapolis (M.E.K., J.P.J., L.Y., P.Z., B.T.F., B.M.O.); and Department of Biomedical Engineering, University of Wisconsin, Madison (Y.D.S., Q.T., V.A., P.J.C.)
| | - Jangwook P Jung
- From the Department of Biomedical Engineering, School of Medicine, School of Engineering, University of Alabama at Birmingham (L.G., V.G.F., J.Z.); Department of Biomedical Engineering, University of Minnesota, Twin Cities, Minneapolis (M.E.K., J.P.J., L.Y., P.Z., B.T.F., B.M.O.); and Department of Biomedical Engineering, University of Wisconsin, Madison (Y.D.S., Q.T., V.A., P.J.C.)
| | - Libang Yang
- From the Department of Biomedical Engineering, School of Medicine, School of Engineering, University of Alabama at Birmingham (L.G., V.G.F., J.Z.); Department of Biomedical Engineering, University of Minnesota, Twin Cities, Minneapolis (M.E.K., J.P.J., L.Y., P.Z., B.T.F., B.M.O.); and Department of Biomedical Engineering, University of Wisconsin, Madison (Y.D.S., Q.T., V.A., P.J.C.)
| | - Patrick Zhang
- From the Department of Biomedical Engineering, School of Medicine, School of Engineering, University of Alabama at Birmingham (L.G., V.G.F., J.Z.); Department of Biomedical Engineering, University of Minnesota, Twin Cities, Minneapolis (M.E.K., J.P.J., L.Y., P.Z., B.T.F., B.M.O.); and Department of Biomedical Engineering, University of Wisconsin, Madison (Y.D.S., Q.T., V.A., P.J.C.)
| | - Yong Da Sie
- From the Department of Biomedical Engineering, School of Medicine, School of Engineering, University of Alabama at Birmingham (L.G., V.G.F., J.Z.); Department of Biomedical Engineering, University of Minnesota, Twin Cities, Minneapolis (M.E.K., J.P.J., L.Y., P.Z., B.T.F., B.M.O.); and Department of Biomedical Engineering, University of Wisconsin, Madison (Y.D.S., Q.T., V.A., P.J.C.)
| | - Quyen Tran
- From the Department of Biomedical Engineering, School of Medicine, School of Engineering, University of Alabama at Birmingham (L.G., V.G.F., J.Z.); Department of Biomedical Engineering, University of Minnesota, Twin Cities, Minneapolis (M.E.K., J.P.J., L.Y., P.Z., B.T.F., B.M.O.); and Department of Biomedical Engineering, University of Wisconsin, Madison (Y.D.S., Q.T., V.A., P.J.C.)
| | - Visar Ajeti
- From the Department of Biomedical Engineering, School of Medicine, School of Engineering, University of Alabama at Birmingham (L.G., V.G.F., J.Z.); Department of Biomedical Engineering, University of Minnesota, Twin Cities, Minneapolis (M.E.K., J.P.J., L.Y., P.Z., B.T.F., B.M.O.); and Department of Biomedical Engineering, University of Wisconsin, Madison (Y.D.S., Q.T., V.A., P.J.C.)
| | - Brian T Freeman
- From the Department of Biomedical Engineering, School of Medicine, School of Engineering, University of Alabama at Birmingham (L.G., V.G.F., J.Z.); Department of Biomedical Engineering, University of Minnesota, Twin Cities, Minneapolis (M.E.K., J.P.J., L.Y., P.Z., B.T.F., B.M.O.); and Department of Biomedical Engineering, University of Wisconsin, Madison (Y.D.S., Q.T., V.A., P.J.C.)
| | - Vladimir G Fast
- From the Department of Biomedical Engineering, School of Medicine, School of Engineering, University of Alabama at Birmingham (L.G., V.G.F., J.Z.); Department of Biomedical Engineering, University of Minnesota, Twin Cities, Minneapolis (M.E.K., J.P.J., L.Y., P.Z., B.T.F., B.M.O.); and Department of Biomedical Engineering, University of Wisconsin, Madison (Y.D.S., Q.T., V.A., P.J.C.)
| | - Paul J Campagnola
- From the Department of Biomedical Engineering, School of Medicine, School of Engineering, University of Alabama at Birmingham (L.G., V.G.F., J.Z.); Department of Biomedical Engineering, University of Minnesota, Twin Cities, Minneapolis (M.E.K., J.P.J., L.Y., P.Z., B.T.F., B.M.O.); and Department of Biomedical Engineering, University of Wisconsin, Madison (Y.D.S., Q.T., V.A., P.J.C.)
| | - Brenda M Ogle
- From the Department of Biomedical Engineering, School of Medicine, School of Engineering, University of Alabama at Birmingham (L.G., V.G.F., J.Z.); Department of Biomedical Engineering, University of Minnesota, Twin Cities, Minneapolis (M.E.K., J.P.J., L.Y., P.Z., B.T.F., B.M.O.); and Department of Biomedical Engineering, University of Wisconsin, Madison (Y.D.S., Q.T., V.A., P.J.C.).
| | - Jianyi Zhang
- From the Department of Biomedical Engineering, School of Medicine, School of Engineering, University of Alabama at Birmingham (L.G., V.G.F., J.Z.); Department of Biomedical Engineering, University of Minnesota, Twin Cities, Minneapolis (M.E.K., J.P.J., L.Y., P.Z., B.T.F., B.M.O.); and Department of Biomedical Engineering, University of Wisconsin, Madison (Y.D.S., Q.T., V.A., P.J.C.).
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156
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Borovjagin AV, Ogle BM, Berry JL, Zhang J. From Microscale Devices to 3D Printing: Advances in Fabrication of 3D Cardiovascular Tissues. Circ Res 2017; 120:150-165. [PMID: 28057791 PMCID: PMC5224928 DOI: 10.1161/circresaha.116.308538] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/29/2016] [Revised: 10/03/2016] [Accepted: 10/19/2016] [Indexed: 01/14/2023]
Abstract
Current strategies for engineering cardiovascular cells and tissues have yielded a variety of sophisticated tools for studying disease mechanisms, for development of drug therapies, and for fabrication of tissue equivalents that may have application in future clinical use. These efforts are motivated by the need to extend traditional 2-dimensional (2D) cell culture systems into 3D to more accurately replicate in vivo cell and tissue function of cardiovascular structures. Developments in microscale devices and bioprinted 3D tissues are beginning to supplant traditional 2D cell cultures and preclinical animal studies that have historically been the standard for drug and tissue development. These new approaches lend themselves to patient-specific diagnostics, therapeutics, and tissue regeneration. The emergence of these technologies also carries technical challenges to be met before traditional cell culture and animal testing become obsolete. Successful development and validation of 3D human tissue constructs will provide powerful new paradigms for more cost effective and timely translation of cardiovascular tissue equivalents.
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Affiliation(s)
- Anton V Borovjagin
- From the Department of Biomedical Engineering, School of Medicine, School of Engineering, The University of Alabama at Birmingham (A.V.B., J.L.B., J.Z.); and Department of Biomedical Engineering, College of Science and Engineering, The University of Minnesota, Minneapolis (B.M.O.)
| | - Brenda M Ogle
- From the Department of Biomedical Engineering, School of Medicine, School of Engineering, The University of Alabama at Birmingham (A.V.B., J.L.B., J.Z.); and Department of Biomedical Engineering, College of Science and Engineering, The University of Minnesota, Minneapolis (B.M.O.)
| | - Joel L Berry
- From the Department of Biomedical Engineering, School of Medicine, School of Engineering, The University of Alabama at Birmingham (A.V.B., J.L.B., J.Z.); and Department of Biomedical Engineering, College of Science and Engineering, The University of Minnesota, Minneapolis (B.M.O.)
| | - Jianyi Zhang
- From the Department of Biomedical Engineering, School of Medicine, School of Engineering, The University of Alabama at Birmingham (A.V.B., J.L.B., J.Z.); and Department of Biomedical Engineering, College of Science and Engineering, The University of Minnesota, Minneapolis (B.M.O.).
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157
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Zhang Z, Du J, Li Y, Wu J, Yu F, Chen Y. An aptamer-patterned hydrogel for the controlled capture and release of proteins via biorthogonal click chemistry and DNA hybridization. J Mater Chem B 2017; 5:5974-5982. [DOI: 10.1039/c7tb00883j] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
An aptamer-patterned hydrogel can realize immobilization and controlled release of proteins in a spatiotemporal manner.
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Affiliation(s)
- Zheng Zhang
- State Key Laboratory of Marine Resource Utilization in South China Sea
- Hainan University
- Haikou 570228
- P. R. China
| | - Jie Du
- State Key Laboratory of Marine Resource Utilization in South China Sea
- Hainan University
- Haikou 570228
- P. R. China
- Hainan Provincial Key Laboratory of Research on Utilization of Si-Zr-Ti Resources
| | - Yuli Li
- Institution of Plastic Surgery
- Weifang Medical University
- Weifang 261042
- P. R. China
| | - Jincai Wu
- Hainan Provincial Key Laboratory of Research on Utilization of Si-Zr-Ti Resources
- Hainan University
- Haikou 570228
- P. R. China
| | - Feng Yu
- State Key Laboratory of Marine Resource Utilization in South China Sea
- Hainan University
- Haikou 570228
- P. R. China
- Hainan Provincial Key Laboratory of Research on Utilization of Si-Zr-Ti Resources
| | - Yong Chen
- State Key Laboratory of Marine Resource Utilization in South China Sea
- Hainan University
- Haikou 570228
- P. R. China
- Hainan Provincial Key Laboratory of Research on Utilization of Si-Zr-Ti Resources
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158
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Jungnickel C, Tsurkan MV, Wogan K, Werner C, Schlierf M. Bottom-Up Structuring and Site-Selective Modification of Hydrogels Using a Two-Photon [2+2] Cycloaddition of Maleimide. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2017; 29:1603327. [PMID: 27862380 DOI: 10.1002/adma.201603327] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/24/2016] [Revised: 09/26/2016] [Indexed: 06/06/2023]
Abstract
Creating hydrogel systems to mimic the extracellular matrix is often limited by their static nature. The use of a two-photon [2+2] cycloaddition of maleimide groups to structure surfaces, to create hydrogels, and add 3D modifications with sub-micrometer precision is reported. The absence of photoinitiators and usage of near-infrared light is promising for future in vivo studies.
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Affiliation(s)
- Christiane Jungnickel
- B CUBE - Center for Molecular Bioengineering, Technische Universität Dresden, Arnoldstraße 18, 01307, Dresden, Germany
- Leibniz-Institute of Polymer Research Dresden (IPF), Max Bergmann Center of Biomaterials Dresden (MBC), Hohe Straße 6, 01069, Dresden, Germany
| | - Mikhail V Tsurkan
- Leibniz-Institute of Polymer Research Dresden (IPF), Max Bergmann Center of Biomaterials Dresden (MBC), Hohe Straße 6, 01069, Dresden, Germany
| | - Kristin Wogan
- B CUBE - Center for Molecular Bioengineering, Technische Universität Dresden, Arnoldstraße 18, 01307, Dresden, Germany
| | - Carsten Werner
- Leibniz-Institute of Polymer Research Dresden (IPF), Max Bergmann Center of Biomaterials Dresden (MBC), Hohe Straße 6, 01069, Dresden, Germany
| | - Michael Schlierf
- B CUBE - Center for Molecular Bioengineering, Technische Universität Dresden, Arnoldstraße 18, 01307, Dresden, Germany
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159
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Ji H, Xi K, Zhang Q, Jia X. Photodegradable hydrogels for external manipulation of cellular microenvironments with real-time monitoring. RSC Adv 2017. [DOI: 10.1039/c7ra02629c] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A designed hydrogel whose stiffness could not only be controlled but also monitored in situ by fluorescence.
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Affiliation(s)
- Hanxu Ji
- State Key Laboratory of Coordination Chemistry
- Department of Polymer Science & Engineering
- Nanjing National Laboratory of Microstructures
- Nanjing University
- Nanjing 210093
| | - Kai Xi
- Department of Polymer Science & Engineering
- Nanjing University
- Nanjing 210093
- P. R. China
| | - Qiuhong Zhang
- Department of Polymer Science & Engineering
- Nanjing University
- Nanjing 210093
- P. R. China
| | - Xudong Jia
- State Key Laboratory of Coordination Chemistry
- Department of Polymer Science & Engineering
- Nanjing National Laboratory of Microstructures
- Nanjing University
- Nanjing 210093
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160
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Zhou W, Dai X, Lieber CM. Advances in nanowire bioelectronics. REPORTS ON PROGRESS IN PHYSICS. PHYSICAL SOCIETY (GREAT BRITAIN) 2017; 80:016701. [PMID: 27823988 DOI: 10.1088/0034-4885/80/1/016701] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Semiconductor nanowires represent powerful building blocks for next generation bioelectronics given their attractive properties, including nanometer-scale footprint comparable to subcellular structures and bio-molecules, configurable in nonstandard device geometries readily interfaced with biological systems, high surface-to-volume ratios, fast signal responses, and minimum consumption of energy. In this review article, we summarize recent progress in the field of nanowire bioelectronics with a focus primarily on silicon nanowire field-effect transistor biosensors. First, the synthesis and assembly of semiconductor nanowires will be described, including the basics of nanowire FETs crucial to their configuration as biosensors. Second, we will introduce and review recent results in nanowire bioelectronics for biomedical applications ranging from label-free sensing of biomolecules, to extracellular and intracellular electrophysiological recording.
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Affiliation(s)
- Wei Zhou
- Bradley Department of Electrical and Computer Engineering, Virginia Tech, Blacksburg, VA 24061, USA
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161
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Nakanishi J. Photoactivatable Substrates: A Material-Based Approach for Dissecting Cell Migration. CHEM REC 2016; 17:611-621. [DOI: 10.1002/tcr.201600090] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2016] [Indexed: 12/12/2022]
Affiliation(s)
- Jun Nakanishi
- International Center for Materials Nanoarchitectonics (MANA); National Institute for Materials Science (NIMS); 1-1 Namiki Tsukuba 305-0044 Japan
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162
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Abstract
Click chemistries have been investigated for use in numerous biomaterials applications, including drug delivery, tissue engineering, and cell culture. In particular, light-mediated click reactions, such as photoinitiated thiol-ene and thiol-yne reactions, afford spatiotemporal control over material properties and allow the design of systems with a high degree of user-directed property control. Fabrication and modification of hydrogel-based biomaterials using the precision afforded by light and the versatility offered by these thiol-X photoclick chemistries are of growing interest, particularly for the culture of cells within well-defined, biomimetic microenvironments. Here, we describe methods for the photoencapsulation of cells and subsequent photopatterning of biochemical cues within hydrogel matrices using versatile and modular building blocks polymerized by a thiol-ene photoclick reaction. Specifically, an approach is presented for constructing hydrogels from allyloxycarbonyl (Alloc)-functionalized peptide crosslinks and pendant peptide moieties and thiol-functionalized poly(ethylene glycol) (PEG) that rapidly polymerize in the presence of lithium acylphosphinate photoinitiator and cytocompatible doses of long wavelength ultraviolet (UV) light. Facile techniques to visualize photopatterning and quantify the concentration of peptides added are described. Additionally, methods are established for encapsulating cells, specifically human mesenchymal stem cells, and determining their viability and activity. While the formation and initial patterning of thiol-alloc hydrogels are shown here, these techniques broadly may be applied to a number of other light and radical-initiated material systems (e.g., thiol-norbornene, thiol-acrylate) to generate patterned substrates.
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Affiliation(s)
- Lisa A Sawicki
- Department of Chemical and Biomolecular Engineering, University of Delaware
| | - April M Kloxin
- Department of Chemical and Biomolecular Engineering, University of Delaware; Department of Materials Science and Engineering, University of Delaware;
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163
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Zhang S, Jiang Z, Shi J, Wang X, Han P, Qian W. An Efficient, Recyclable, and Stable Immobilized Biocatalyst Based on Bioinspired Microcapsules-in-Hydrogel Scaffolds. ACS APPLIED MATERIALS & INTERFACES 2016; 8:25152-25161. [PMID: 27602594 DOI: 10.1021/acsami.6b09483] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Design and preparation of high-performance immobilized biocatalysts with exquisite structures and elucidation of their profound structure-performance relationship are highly desired for green and sustainable biotransformation processes. Learning from nature has been recognized as a shortcut to achieve such an impressive goal. Loose connective tissue, which is composed of hierarchically organized cells by extracellular matrix (ECM) and is recognized as an efficient catalytic system to ensure the ordered proceeding of metabolism, may offer an ideal prototype for preparing immobilized biocatalysts with high catalytic activity, recyclability, and stability. Inspired by the hierarchical structure of loose connective tissue, we prepared an immobilized biocatalyst enabled by microcapsules-in-hydrogel (MCH) scaffolds via biomimetic mineralization in agarose hydrogel. In brief, the in situ synthesized hybrid microcapsules encapsulated with glucose oxidase (GOD) are hierarchically organized by the fibrous framework of agarose hydrogel, where the fibers are intercalated into the capsule wall. The as-prepared immobilized biocatalyst shows structure-dependent catalytic performance. The porous hydrogel permits free diffusion of glucose molecules (diffusion coefficient: ∼6 × 10(-6) cm(2) s(-1), close to that in water) and retains the enzyme activity as much as possible after immobilization (initial reaction rate: 1.5 × 10(-2) mM min(-1)). The monolithic macroscale of agarose hydrogel facilitates the easy recycling of the immobilized biocatalyst (only by using tweezers), which contributes to the nonactivity decline during the recycling test. The fiber-intercalating structure elevates the mechanical stability of the in situ synthesized hybrid microcapsules, which inhibits the leaching and enhances the stability of the encapsulated GOD, achieving immobilization efficiency of ∼95%. This study will, therefore, provide a generic method for the hierarchical organization of (bio)active materials and the rational design of novel (bio)catalysts.
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Affiliation(s)
- Shaohua Zhang
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) , Tianjin 300072, China
| | - Zhongyi Jiang
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) , Tianjin 300072, China
| | - Jiafu Shi
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) , Tianjin 300072, China
| | - Xueyan Wang
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) , Tianjin 300072, China
| | - Pingping Han
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) , Tianjin 300072, China
| | - Weilun Qian
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) , Tianjin 300072, China
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164
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Bursac N, Juhas M, Rando TA. Synergizing Engineering and Biology to Treat and Model Skeletal Muscle Injury and Disease. Annu Rev Biomed Eng 2016; 17:217-42. [PMID: 26643021 DOI: 10.1146/annurev-bioeng-071114-040640] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Although skeletal muscle is one of the most regenerative organs in our body, various genetic defects, alterations in extrinsic signaling, or substantial tissue damage can impair muscle function and the capacity for self-repair. The diversity and complexity of muscle disorders have attracted much interest from both cell biologists and, more recently, bioengineers, leading to concentrated efforts to better understand muscle pathology and develop more efficient therapies. This review describes the biological underpinnings of muscle development, repair, and disease, and discusses recent bioengineering efforts to design and control myomimetic environments, both to study muscle biology and function and to aid in the development of new drug, cell, and gene therapies for muscle disorders. The synergy between engineering-aided biological discovery and biology-inspired engineering solutions will be the path forward for translating laboratory results into clinical practice.
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Affiliation(s)
- Nenad Bursac
- Department of Biomedical Engineering, Duke University, Durham, North Carolina 27708;
| | - Mark Juhas
- Department of Biomedical Engineering, Duke University, Durham, North Carolina 27708;
| | - Thomas A Rando
- Department of Neurology and Neurological Sciences, Stanford University School of Medicine, Stanford, California 94305.,Rehabilitation Research & Development Service, VA Palo Alto Health Care System, Palo Alto, California 94304
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165
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Marquardt LM, Heilshorn SC. Design of Injectable Materials to Improve Stem Cell Transplantation. CURRENT STEM CELL REPORTS 2016; 2:207-220. [PMID: 28868235 PMCID: PMC5576562 DOI: 10.1007/s40778-016-0058-0] [Citation(s) in RCA: 110] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Stem cell-based therapies are steadily gaining traction for regenerative medicine approaches to treating disease and injury throughout the body. While a significant body of work has shown success in preclinical studies, results often fail to translate in clinical settings. One potential cause is the massive transplanted cell death that occurs post injection, preventing functional integration with host tissue. Therefore, current research is focusing on developing injectable hydrogel materials to protect cells during delivery and to stimulate endogenous regeneration through interactions of transplanted cells and host tissue. This review explores the design of targeted injectable hydrogel systems for improving the therapeutic potential of stem cells across a variety of tissue engineering applications with a focus on hydrogel materials that have progressed to the stage of preclinical testing.
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Affiliation(s)
- Laura M Marquardt
- Department of Materials Science and Engineering, Stanford University, Stanford, CA 94305
| | - Sarah C Heilshorn
- Department of Materials Science and Engineering, Stanford University, Stanford, CA 94305
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166
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Brandenberg N, Lutolf MP. In Situ Patterning of Microfluidic Networks in 3D Cell-Laden Hydrogels. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2016; 28:7450-7456. [PMID: 27334545 DOI: 10.1002/adma.201601099] [Citation(s) in RCA: 108] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2016] [Indexed: 06/06/2023]
Abstract
Focalized short-pulsed lasers have sufficient power to generate micrometer-sized cavities in various hydrogels. An in situ technique based on laser ablation to fabricate intricate microfluidic networks in biocompatible gels without manual handling is presented. This method is fully compatible with 3D cell culture and opens up unprecedented opportunities for cell biology, developmental biology, and stem-cell-based tissue engineering.
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Affiliation(s)
- Nathalie Brandenberg
- Laboratory of Stem Cell Bioengineering, Institute of Bioengineering, School of Life Sciences, Ecole Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
| | - Matthias P Lutolf
- Laboratory of Stem Cell Bioengineering, Institute of Bioengineering, School of Life Sciences, Ecole Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland.
- Institute of Chemical Sciences and Engineering, School of Basic Sciences, Ecole Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland.
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167
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Lederhose P, Chen Z, Müller R, Blinco JP, Wu S, Barner-Kowollik C. Near-Infrared Photoinduced Coupling Reactions Assisted by Upconversion Nanoparticles. Angew Chem Int Ed Engl 2016; 55:12195-9. [DOI: 10.1002/anie.201606425] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2016] [Indexed: 12/20/2022]
Affiliation(s)
- Paul Lederhose
- School of Chemistry, Physics and Mechanical Engineering; Queensland University of Technology (QUT); 2 George St Brisbane QLD 4001 Australia
- Preparative Macromolecular Chemistry; Institut für Technische Chemie und Polymerchemie; Karlsruhe Institute of Technology (KIT); Engesserstrasse 18 76131 Karlsruhe Germany
- Institut für Biologische Grenzflächen; Karlsruhe Institute of Technology (KIT); Hermann-von-Helmholtz-Platz 1 76344 Eggenstein-Leopoldshafen Germany
| | - Zhijun Chen
- Max-Planck-Institut für Polymerforschung; Ackermannweg 10 55128 Mainz Germany
| | - Rouven Müller
- Preparative Macromolecular Chemistry; Institut für Technische Chemie und Polymerchemie; Karlsruhe Institute of Technology (KIT); Engesserstrasse 18 76131 Karlsruhe Germany
- Institut für Biologische Grenzflächen; Karlsruhe Institute of Technology (KIT); Hermann-von-Helmholtz-Platz 1 76344 Eggenstein-Leopoldshafen Germany
| | - James P. Blinco
- School of Chemistry, Physics and Mechanical Engineering; Queensland University of Technology (QUT); 2 George St Brisbane QLD 4001 Australia
| | - Si Wu
- Max-Planck-Institut für Polymerforschung; Ackermannweg 10 55128 Mainz Germany
| | - Christopher Barner-Kowollik
- School of Chemistry, Physics and Mechanical Engineering; Queensland University of Technology (QUT); 2 George St Brisbane QLD 4001 Australia
- Preparative Macromolecular Chemistry; Institut für Technische Chemie und Polymerchemie; Karlsruhe Institute of Technology (KIT); Engesserstrasse 18 76131 Karlsruhe Germany
- Institut für Biologische Grenzflächen; Karlsruhe Institute of Technology (KIT); Hermann-von-Helmholtz-Platz 1 76344 Eggenstein-Leopoldshafen Germany
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168
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Lederhose P, Chen Z, Müller R, Blinco JP, Wu S, Barner-Kowollik C. Lichtgesteuerte Kupplungsreaktionen im nahen Infrarot mittels Aufkonvertierungs-Nanopartikeln. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201606425] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Paul Lederhose
- School of Chemistry, Physics and Mechanical Engineering; Queensland University of Technology (QUT); 2 George St Brisbane QLD 4001 Australien
- Lehrstuhl für Präparative Makromolekulare Chemie; Institut für Technische Chemie und Polymerchemie; Karlsruher Institut für Technologie (KIT); Engesserstraße 18 76131 Karlsruhe Deutschland
- Institut für Biologische Grenzflächen; Karlsruher Institut für Technologie (KIT); Hermann-von-Helmholtz-Platz 1 76344 Eggenstein-Leopoldshafen Deutschland
| | - Zhijun Chen
- Max-Planck-Institut für Polymerforschung; Ackermannweg 10 55128 Mainz Deutschland
| | - Rouven Müller
- Lehrstuhl für Präparative Makromolekulare Chemie; Institut für Technische Chemie und Polymerchemie; Karlsruher Institut für Technologie (KIT); Engesserstraße 18 76131 Karlsruhe Deutschland
- Institut für Biologische Grenzflächen; Karlsruher Institut für Technologie (KIT); Hermann-von-Helmholtz-Platz 1 76344 Eggenstein-Leopoldshafen Deutschland
| | - James P. Blinco
- School of Chemistry, Physics and Mechanical Engineering; Queensland University of Technology (QUT); 2 George St Brisbane QLD 4001 Australien
| | - Si Wu
- Max-Planck-Institut für Polymerforschung; Ackermannweg 10 55128 Mainz Deutschland
| | - Christopher Barner-Kowollik
- School of Chemistry, Physics and Mechanical Engineering; Queensland University of Technology (QUT); 2 George St Brisbane QLD 4001 Australien
- Lehrstuhl für Präparative Makromolekulare Chemie; Institut für Technische Chemie und Polymerchemie; Karlsruher Institut für Technologie (KIT); Engesserstraße 18 76131 Karlsruhe Deutschland
- Institut für Biologische Grenzflächen; Karlsruher Institut für Technologie (KIT); Hermann-von-Helmholtz-Platz 1 76344 Eggenstein-Leopoldshafen Deutschland
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169
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Mahmoodi MM, Fisher SA, Tam RY, Goff PC, Anderson RB, Wissinger JE, Blank DA, Shoichet MS, Distefano MD. 6-Bromo-7-hydroxy-3-methylcoumarin (mBhc) is an efficient multi-photon labile protecting group for thiol caging and three-dimensional chemical patterning. Org Biomol Chem 2016; 14:8289-300. [PMID: 27529405 DOI: 10.1039/c6ob01045h] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The photochemical release of chemical reagents and bioactive molecules provides a useful tool for spatio-temporal control of biological processes. However, achieving this goal requires the development of highly efficient one- and two-photon sensitive photo-cleavable protecting groups. Thiol-containing compounds play critical roles in biological systems and bioengineering applications. While potentially useful for sulfhydryl protection, the 6-bromo-7-hydroxy coumarin-4-ylmethyl (Bhc) group can undergo an undesired photoisomerization reaction upon irradiation that limits its uncaging efficiency. To address this issue, here we describe the development of 6-bromo-7-hydroxy-3-methylcoumarin-4-ylmethyl (mBhc) as an improved group for thiol-protection. One- and two-photon photolysis reactions demonstrate that a peptide containing a mBhc-caged thiol undergoes clean and efficient photo-cleavage upon irradiation without detectable photoisomer production. To test its utility for biological studies, a K-Ras-derived peptide containing an mBhc-protected thiol was prepared by solid phase peptide synthesis using Fmoc-Cys(mBhc)-OH for the introduction of the caged thiol. Irradiation of that peptide using either UV or near IR light in presence of protein farnesyltransferase (PFTase), resulted in generation of the free peptide which was then recognized by the enzyme and became farnesylated. To show the utility of this caging group in biomaterial applications, we covalently modified hydrogels with mBhc-protected cysteamine. Using multi-photon confocal microscopy, highly defined volumes of free thiols were generated inside the hydrogels and visualized via reaction with a sulfhydryl-reactive fluorophore. The simple synthesis of mBhc and its efficient removal by one- and two-photon processes make it an attractive protecting group for thiol caging in a variety of applications.
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Affiliation(s)
- M Mohsen Mahmoodi
- Department of Chemistry, University of Minnesota, Minneapolis, Minnesota 55455, USA.
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170
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Ding B, Gao H, Song J, Li Y, Zhang L, Cao X, Xu M, Cai J. Tough and Cell-Compatible Chitosan Physical Hydrogels for Mouse Bone Mesenchymal Stem Cells in Vitro. ACS APPLIED MATERIALS & INTERFACES 2016; 8:19739-19746. [PMID: 27410199 DOI: 10.1021/acsami.6b05302] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Most hydrogels involve synthetic polymers and organic cross-linkers that cannot simultaneously fulfill the mechanical and cell-compatibility requirements of biomedical applications. We prepared a new type of chitosan physical hydrogel with various degrees of deacetylation (DDs) via the heterogeneous deacetylation of nanoporous chitin hydrogels under mild conditions. The DD of the chitosan physical hydrogels ranged from 56 to 99%, and the hydrogels were transparent and mechanically strong because of the extra intra- and intermolecular hydrogen bonding interactions between the amino and hydroxyl groups on the nearby chitosan nanofibrils. The tensile strength and Young's modulus of the chitosan physical hydrogels were 3.6 and 7.9 MPa, respectively, for a DD of 56% and increased to 12.1 and 92.0 MPa for a DD of 99% in a swelling equilibrium state. In vitro studies demonstrated that mouse bone mesenchymal stem cells (mBMSCs) cultured on chitosan physical hydrogels had better adhesion and proliferation than those cultured on chitin hydrogels. In particular, the chitosan physical hydrogels promoted the differentiation of the mBMSCs into epidermal cells in vitro. These materials are promising candidates for applications such as stem cell research, cell therapy, and tissue engineering.
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Affiliation(s)
- Beibei Ding
- College of Chemistry & Molecular Sciences, Wuhan University , Wuhan 430072, People's Republic of China
| | - Huichang Gao
- School of Materials Science and Engineering, South China University of Technology , Guangzhou 510641, People's Republic of China
| | - Jianhui Song
- Department of Physics, Shanghai Key Laboratory of Magnetic Resonance, East China Normal University , Shanghai 200062, People's Republic of China
| | - Yaya Li
- College of Chemistry & Molecular Sciences, Wuhan University , Wuhan 430072, People's Republic of China
| | - Lina Zhang
- College of Chemistry & Molecular Sciences, Wuhan University , Wuhan 430072, People's Republic of China
| | - Xiaodong Cao
- School of Materials Science and Engineering, South China University of Technology , Guangzhou 510641, People's Republic of China
| | - Min Xu
- Department of Physics, Shanghai Key Laboratory of Magnetic Resonance, East China Normal University , Shanghai 200062, People's Republic of China
| | - Jie Cai
- College of Chemistry & Molecular Sciences, Wuhan University , Wuhan 430072, People's Republic of China
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171
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Haugh MG, Heilshorn SC. Integrating Concepts of Material Mechanics, Ligand Chemistry, Dimensionality and Degradation to Control Differentiation of Mesenchymal Stem Cells. CURRENT OPINION IN SOLID STATE & MATERIALS SCIENCE 2016; 20:171-179. [PMID: 28458610 PMCID: PMC5404745 DOI: 10.1016/j.cossms.2016.04.001] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
The role of substrate mechanics in guiding mesenchymal stem cell (MSC) fate has been the focus of much research over the last decade. More recently, the complex interplay between substrate mechanics and other material properties such as ligand chemistry and substrate degradability to regulate MSC differentiation has begun to be elucidated. Additionally, there are several changes in the presentation of these material properties as the dimensionality is altered from two- to three-dimensional substrates, which may fundamentally alter our understanding of substrate-induced mechanotransduction processes. In this review, an overview of recent findings that highlight the material properties that are important in guiding MSC fate decisions is presented, with a focus on underlining gaps in our existing knowledge and proposing potential directions for future research.
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Affiliation(s)
- Matthew G. Haugh
- Department of Materials Science and Engineering, Stanford University, Stanford, CA, USA
- Tissue Engineering Research Group, Department of Anatomy, Royal College of Surgeons in Ireland, 123 St. Stephens Green, Dublin 2, Dublin, Ireland
| | - Sarah C. Heilshorn
- Department of Materials Science and Engineering, Stanford University, Stanford, CA, USA
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172
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Kumar A, Nune KC, Misra RDK. Biological functionality and mechanistic contribution of extracellular matrix-ornamented three dimensional Ti-6Al-4V mesh scaffolds. J Biomed Mater Res A 2016; 104:2751-63. [PMID: 27325185 DOI: 10.1002/jbm.a.35809] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2016] [Revised: 05/24/2016] [Accepted: 06/16/2016] [Indexed: 12/24/2022]
Abstract
The 3D printed metallic implants are considered bioinert in nature because of the absence of bioactive molecules. Thus, surface modification of bioinert materials is expected to favorably promote osteoblast functions and differentiation. In this context, the objective of this study is to fundamentally elucidate the effect of cell-derived decellularized extracellular matrix (dECM) ornamented 3D printed Ti-6Al-4V scaffolds on biological functions, involving cell adhesion, proliferation, and synthesis of vinculin and actin proteins. To mimic the natural ECM environment, the mineralized ECM of osteoblasts was deposited on the Ti-6Al-4V porous scaffolds, fabricated by electron beam melting (EBM) method. The process comprised of osteoblast proliferation, differentiation, and freeze-thaw cycles to obtain decellularized extra cellular matrix (dECM), in vitro. The dECM provided a natural environment to restore the natural cell functionality of osteoblasts that were cultured on dECM ornamented Ti-6Al-4V scaffolds. In comparison to the bare Ti-6Al-4V scaffolds, a higher cell functionality such as cell adhesion, proliferation, and growth including cell-cell and cell-material interaction were observed on dECM ornamented Ti-6Al-4V scaffolds, which were characterized by using markers for focal adhesion and cytoskeleton such as vinculin and actin. Moreover, electron microscopy also indicated higher cell-material interaction and enhanced proliferation of cells on dECM ornamented Ti-6Al-4V scaffolds, supported by MTT assay. © 2016 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 104A: 2751-2763, 2016.
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Affiliation(s)
- A Kumar
- Biomaterials and Biomedical Engineering Research Laboratory, Department of Metallurgical, Materials, and Biomedical Engineering, 500 W. University Avenue, University of Texas at El Paso, El Paso, Texas, 79968, USA
| | - K C Nune
- Biomaterials and Biomedical Engineering Research Laboratory, Department of Metallurgical, Materials, and Biomedical Engineering, 500 W. University Avenue, University of Texas at El Paso, El Paso, Texas, 79968, USA
| | - R D K Misra
- Biomaterials and Biomedical Engineering Research Laboratory, Department of Metallurgical, Materials, and Biomedical Engineering, 500 W. University Avenue, University of Texas at El Paso, El Paso, Texas, 79968, USA.
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173
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Xu D, Huang J, Zhao D, Ding B, Zhang L, Cai J. High-Flexibility, High-Toughness Double-Cross-Linked Chitin Hydrogels by Sequential Chemical and Physical Cross-Linkings. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2016; 28:5844-5849. [PMID: 27158931 DOI: 10.1002/adma.201600448] [Citation(s) in RCA: 147] [Impact Index Per Article: 18.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2016] [Revised: 03/24/2016] [Indexed: 06/05/2023]
Abstract
High-flexibility, high-toughness double-cross-linked (DC) chitin hydrogels are prepared through a sequential chemical and physical cross-linkings strategy. The incorporation of chemically and physically cross-linked domains imbues the DC chitin hydrogels with relatively high stiffness, high toughness, and toughness recoverability.
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Affiliation(s)
- Duoduo Xu
- College of Chemistry & Molecular Sciences, Wuhan University, Wuhan, 430072, China
| | - Junchao Huang
- College of Chemistry & Molecular Sciences, Wuhan University, Wuhan, 430072, China
| | - Dan Zhao
- College of Chemistry & Molecular Sciences, Wuhan University, Wuhan, 430072, China
| | - Beibei Ding
- College of Chemistry & Molecular Sciences, Wuhan University, Wuhan, 430072, China
| | - Lina Zhang
- College of Chemistry & Molecular Sciences, Wuhan University, Wuhan, 430072, China
| | - Jie Cai
- College of Chemistry & Molecular Sciences, Wuhan University, Wuhan, 430072, China
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174
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Lau HK, Li L, Jurusik AK, Sabanayagam CR, Kiick KL. Aqueous Liquid–Liquid Phase Separation of Resilin-Like Polypeptide/Polyethylene Glycol Solutions for the Formation of Microstructured Hydrogels. ACS Biomater Sci Eng 2016; 3:757-766. [DOI: 10.1021/acsbiomaterials.6b00076] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Hang Kuen Lau
- Department
of Materials Science and Engineering, 201 DuPont Hall, University of Delaware, Newark Delaware 19716, United States
| | - Linqing Li
- Department
of Materials Science and Engineering, 201 DuPont Hall, University of Delaware, Newark Delaware 19716, United States
| | - Anna K. Jurusik
- Department
of Materials Science and Engineering, 201 DuPont Hall, University of Delaware, Newark Delaware 19716, United States
| | | | - Kristi L. Kiick
- Department
of Materials Science and Engineering, 201 DuPont Hall, University of Delaware, Newark Delaware 19716, United States
- Department
of Biomedical Engineering, University of Delaware, 150 Academy
Street, Newark Delaware 19176, United States
- Delaware Biotechnology Institute, 15 Innovation Way, Newark Delaware 19711, United States
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175
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176
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Mahmoodi MM, Abate-Pella D, Pundsack TJ, Palsuledesai CC, Goff PC, Blank DA, Distefano MD. Nitrodibenzofuran: A One- and Two-Photon Sensitive Protecting Group That Is Superior to Brominated Hydroxycoumarin for Thiol Caging in Peptides. J Am Chem Soc 2016; 138:5848-59. [PMID: 27027927 PMCID: PMC5026405 DOI: 10.1021/jacs.5b11759] [Citation(s) in RCA: 53] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2015] [Indexed: 11/28/2022]
Abstract
Photoremovable protecting groups are important for a wide range of applications in peptide chemistry. Using Fmoc-Cys(Bhc-MOM)-OH, peptides containing a Bhc-protected cysteine residue can be easily prepared. However, such protected thiols can undergo isomerization to a dead-end product (a 4-methylcoumarin-3-yl thioether) upon photolysis. To circumvent that photoisomerization problem, we explored the use of nitrodibenzofuran (NDBF) for thiol protection by preparing cysteine-containing peptides where the thiol is masked with an NDBF group. This was accomplished by synthesizing Fmoc-Cys(NDBF)-OH and incorporating that residue into peptides by standard solid-phase peptide synthesis procedures. Irradiation with 365 nm light or two-photon excitation with 800 nm light resulted in efficient deprotection. To probe biological utility, thiol group uncaging was carried out using a peptide derived from the protein K-Ras4B to yield a sequence that is a known substrate for protein farnesyltransferase; irradiation of the NDBF-caged peptide in the presence of the enzyme resulted in the formation of the farnesylated product. Additionally, incubation of human ovarian carcinoma (SKOV3) cells with an NDBF-caged version of a farnesylated peptide followed by UV irradiation resulted in migration of the peptide from the cytosol/Golgi to the plasma membrane due to enzymatic palmitoylation. Overall, the high cleavage efficiency devoid of side reactions and significant two-photon cross-section of NDBF render it superior to Bhc for thiol group caging. This protecting group should be useful for a plethora of applications ranging from the development of light-activatable cysteine-containing peptides to the development of light-sensitive biomaterials.
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Affiliation(s)
- M. Mohsen Mahmoodi
- Department of Chemistry, University
of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Daniel Abate-Pella
- Department of Chemistry, University
of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Tom J. Pundsack
- Department of Chemistry, University
of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Charuta C. Palsuledesai
- Department of Chemistry, University
of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Philip C. Goff
- Department of Chemistry, University
of Minnesota, Minneapolis, Minnesota 55455, United States
| | - David A. Blank
- Department of Chemistry, University
of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Mark D. Distefano
- Department of Chemistry, University
of Minnesota, Minneapolis, Minnesota 55455, United States
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177
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Jeong GS, No DY, Lee J, Yoon J, Chung S, Lee SH. Viscoelastic lithography for fabricating self-organizing soft micro-honeycomb structures with ultra-high aspect ratios. Nat Commun 2016; 7:11269. [PMID: 27157977 PMCID: PMC4865738 DOI: 10.1038/ncomms11269] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2015] [Accepted: 03/08/2016] [Indexed: 02/06/2023] Open
Abstract
High-aspect ratio micro- and nano-structures have been used for the production of a variety of applications. In this paper, we describe a simple and cost-effective approach to fabricate an arrayed microarchitecture with an ultra-high aspect ratio using soft materials. The shapes and sizes of the honeycomb structure can be easily modulated by changing the dimensions and position of the base mould pattern and the pressure. The honeycomb structure is used to prepare a drug delivery patch and a microwell array to form cell spheroids without cell loss. The honeycomb structures prepared using natural ECM (collagen-Matrigel) materials are successfully fabricated. The hepatocytes and endothelial cells are seeded and co-cultured in the ECM-based micro-honeycomb to prepare a 3D liver model successfully mimicking an ultrastructure of liver and providing enhanced liver function.
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Affiliation(s)
- Gi Seok Jeong
- Department of Biomedical Engineering, College of Health Science,
Korea University, Anam-ro 145, Seongbuk-gu,
Seoul
02841, Korea
- Biomedical Engineering Research Center, Asan Institute for Life
Sciences, Asan Medical Center, 88 olympic-Ro,
Songpa-gu, Seoul
05505, Korea
| | - Da Yoon No
- Department of Biomedical Engineering, College of Health Science,
Korea University, Anam-ro 145, Seongbuk-gu,
Seoul
02841, Korea
- Department of Bioengineering, School of Engineering and
Medicine, Stanford University, 443 Via Ortega,
Stanford, California
94305, USA
| | - JaeSeo Lee
- KU-KIST Graduate School of Converging Science and Technology,
Korea University, Seoul
02841, Korea
| | - Junghyo Yoon
- School of Mechanical Engineering, Korea University,
Anam-ro 145, Seongbuk-gu, Seoul
02841, Korea
| | - Seok Chung
- School of Mechanical Engineering, Korea University,
Anam-ro 145, Seongbuk-gu, Seoul
02841, Korea
| | - Sang-Hoon Lee
- Department of Biomedical Engineering, College of Health Science,
Korea University, Anam-ro 145, Seongbuk-gu,
Seoul
02841, Korea
- KU-KIST Graduate School of Converging Science and Technology,
Korea University, Seoul
02841, Korea
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178
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Abstract
Biomaterials for tissue engineering provide scaffolds to support cells and guide tissue regeneration. Despite significant advances in biomaterials design and fabrication techniques, engineered tissue constructs remain functionally inferior to native tissues. This is largely due to the inability to recreate the complex and dynamic hierarchical organization of the extracellular matrix components, which is intimately linked to a tissue's biological function. This review discusses current state-of-the-art strategies to control the spatial presentation of physical and biochemical cues within a biomaterial to recapitulate native tissue organization and function.
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Affiliation(s)
- Lesley W Chow
- Department of Materials Science and Engineering, Lehigh University, Bethlehem, PA 18015, USA Bioengineering Program, Lehigh University, Bethlehem, PA 18015, USA
| | - Jacob F Fischer
- Bioengineering Program, Lehigh University, Bethlehem, PA 18015, USA
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179
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Skylar-Scott MA, Liu MC, Wu Y, Dixit A, Yanik MF. Guided Homing of Cells in Multi-Photon Microfabricated Bioscaffolds. Adv Healthc Mater 2016; 5:1233-43. [PMID: 27059425 PMCID: PMC6070392 DOI: 10.1002/adhm.201600082] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2016] [Indexed: 12/30/2022]
Abstract
Tissues contain exquisite vascular microstructures, and patterns of chemical cues for directing cell migration, homing, and differentiation for organ development and function. 3D microfabrication by multi-photon photolithography is a flexible, high-resolution tool for generating 3D bioscaffolds. However, the combined fabrication of scaffold microstructure simultaneously with patterning of cues to create both geometrically and chemically defined microenvironments remains to be demonstrated. This study presents a high-speed method for micron-resolution fabrication of scaffold microstructure and patterning of protein cues simultaneously using native scaffold materials. By the simultaneous microfabrication of arbitrary microvasculature geometries, and patterning selected regions of the microvasculature with the homing ligand P-selectin, this study demonstrates adhesion, rolling, and selective homing of cells in defined 3D regions. This novel ability to generate high-resolution geometries replete with patterned cues at high speed enables the construction of biomimetic microenvironments for complex 3D assays of cellular behavior.
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Affiliation(s)
- Mark A. Skylar-Scott
- Harvard John A. Paulson School of Engineering and Applied Science, Harvard University, Cambridge, MA 02138, USA
- Wyss institute for Biologically Inspired Engineering, Harvard University, Cambridge, MA 02138, USA
- Research Laboratory of Electronics, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, USA
| | - Man-Chi Liu
- Research Laboratory of Electronics, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, USA
- Department of Mechanical Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, USA
| | - Yuelong Wu
- Research Laboratory of Electronics, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, USA
- Department of Mechanical Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, USA
| | - Atray Dixit
- Research Laboratory of Electronics, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, USA
- Harvard-MIT Division of Health, Science, and Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, USA
| | - Mehmet Fatih Yanik
- Research Laboratory of Electronics, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, USA
- ETH, Zürich, Switzerland
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180
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Abstract
There is growing appreciation of the role that the extracellular environment plays in regulating cell behavior. Mechanical, structural, and compositional cues, either alone or in concert, can drastically alter cell function. Biomaterials, and particularly hydrogels, have been developed and implemented to present defined subsets of these cues for investigating countless cellular processes as a means of understanding morphogenesis, aging, and disease. Although most scientists concede that standard cell culture materials (tissue culture plastic and glass) do a poor job of recapitulating native cellular milieus, there is currently a knowledge barrier for many researchers in regard to the application of hydrogels for cell culture. Here, we introduce hydrogels to those who may be unfamiliar with procedures to culture and study cells with these systems, with a particular focus on commercially available hydrogels.
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Affiliation(s)
- Steven R Caliari
- Department of Bioengineering, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Jason A Burdick
- Department of Bioengineering, University of Pennsylvania, Philadelphia, Pennsylvania, USA
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181
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Wang S, Jeffries E, Gao J, Sun L, You Z, Wang Y. Polyester with Pendent Acetylcholine-Mimicking Functionalities Promotes Neurite Growth. ACS APPLIED MATERIALS & INTERFACES 2016; 8:9590-9599. [PMID: 27010971 DOI: 10.1021/acsami.5b12379] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Successful regeneration of nerves can benefit from biomaterials that provide a supportive biochemical and mechanical environment while also degrading with controlled inflammation and minimal scar formation. Herein, we report a neuroactive polymer functionalized by covalent attachment of the neurotransmitter acetylcholine (Ach). The polymer was readily synthesized in two steps from poly(sebacoyl diglyceride) (PSeD), which previously demonstrated biocompatibility and biodegradation in vivo. Distinct from prior acetylcholine-biomimetic polymers, PSeD-Ach contains both quaternary ammonium and free acetyl moieties, closely resembling native acetylcholine structure. The polymer structure was confirmed via (1)H nuclear magnetic resonance and Fourier-transform infrared spectroscopy. Hydrophilicity, charge, and thermal properties of PSeD-Ach were determined by tensiometer, zetasizer, differential scanning calorimetry, and thermal gravimetric analysis, respectively. PC12 cells exhibited the greatest proliferation and neurite outgrowth on PSeD-Ach and laminin substrates, with no significant difference between these groups. PSeD-Ach yielded much longer neurite outgrowth than the control polymer containing ammonium but no the acetyl group, confirming the importance of the entire acetylcholine-like moiety. Furthermore, PSeD-Ach supports adhesion of primary rat dorsal root ganglions and subsequent neurite sprouting and extension. The sprouting rate is comparable to the best conditions from previous report. Our findings are significant in that they were obtained with acetylcholine-like functionalities in 100% repeating units, a condition shown to yield significant toxicity in prior publications. Moreover, PSeD-Ach exhibited favorable mechanical and degradation properties for nerve tissue engineering application. Humidified PSeD-Ach had an elastic modulus of 76.9 kPa, close to native neural tissue, and could well recover from cyclic dynamic compression. PSeD-Ach showed a gradual in vitro degradation under physiologic conditions with a mass loss of 60% within 4 weeks. Overall, this simple and versatile synthesis provides a useful tool to produce biomaterials for creating the appropriate stimulatory environment for nerve regeneration.
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Affiliation(s)
- Shaofei Wang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University , 2999 North Renmin Road, Shanghai 201620, P. R. China
| | - Eric Jeffries
- Departments of Bioengineering, Chemical Engineering, Surgery, and the McGowan Institute, University of Pittsburgh , 3700 O'Hara Street, Pittsburgh, Pennsylvania 15261, United States
| | - Jin Gao
- Departments of Bioengineering, Chemical Engineering, Surgery, and the McGowan Institute, University of Pittsburgh , 3700 O'Hara Street, Pittsburgh, Pennsylvania 15261, United States
| | - Lijie Sun
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University , 2999 North Renmin Road, Shanghai 201620, P. R. China
| | - Zhengwei You
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University , 2999 North Renmin Road, Shanghai 201620, P. R. China
| | - Yadong Wang
- Departments of Bioengineering, Chemical Engineering, Surgery, and the McGowan Institute, University of Pittsburgh , 3700 O'Hara Street, Pittsburgh, Pennsylvania 15261, United States
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182
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Wan L, Chen Q, Liu J, Yang X, Huang J, Li L, Guo X, Zhang J, Wang K. Programmable Self-Assembly of DNA–Protein Hybrid Hydrogel for Enzyme Encapsulation with Enhanced Biological Stability. Biomacromolecules 2016; 17:1543-50. [DOI: 10.1021/acs.biomac.6b00233] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Lan Wan
- State Key Laboratory of Chemo/Biosensing
and Chemometrics, College of Chemistry and Chemical Engineering, Key
Laboratory for Bio-Nanotechnology and Molecular Engineering of Hunan
Province, Hunan University, Changsha 410082, People’s Republic of China
| | - Qiaoshu Chen
- State Key Laboratory of Chemo/Biosensing
and Chemometrics, College of Chemistry and Chemical Engineering, Key
Laboratory for Bio-Nanotechnology and Molecular Engineering of Hunan
Province, Hunan University, Changsha 410082, People’s Republic of China
| | - Jianbo Liu
- State Key Laboratory of Chemo/Biosensing
and Chemometrics, College of Chemistry and Chemical Engineering, Key
Laboratory for Bio-Nanotechnology and Molecular Engineering of Hunan
Province, Hunan University, Changsha 410082, People’s Republic of China
| | - Xiaohai Yang
- State Key Laboratory of Chemo/Biosensing
and Chemometrics, College of Chemistry and Chemical Engineering, Key
Laboratory for Bio-Nanotechnology and Molecular Engineering of Hunan
Province, Hunan University, Changsha 410082, People’s Republic of China
| | - Jin Huang
- State Key Laboratory of Chemo/Biosensing
and Chemometrics, College of Chemistry and Chemical Engineering, Key
Laboratory for Bio-Nanotechnology and Molecular Engineering of Hunan
Province, Hunan University, Changsha 410082, People’s Republic of China
| | - Li Li
- State Key Laboratory of Chemo/Biosensing
and Chemometrics, College of Chemistry and Chemical Engineering, Key
Laboratory for Bio-Nanotechnology and Molecular Engineering of Hunan
Province, Hunan University, Changsha 410082, People’s Republic of China
| | - Xi Guo
- State Key Laboratory of Chemo/Biosensing
and Chemometrics, College of Chemistry and Chemical Engineering, Key
Laboratory for Bio-Nanotechnology and Molecular Engineering of Hunan
Province, Hunan University, Changsha 410082, People’s Republic of China
| | - Jue Zhang
- State Key Laboratory of Chemo/Biosensing
and Chemometrics, College of Chemistry and Chemical Engineering, Key
Laboratory for Bio-Nanotechnology and Molecular Engineering of Hunan
Province, Hunan University, Changsha 410082, People’s Republic of China
| | - Kemin Wang
- State Key Laboratory of Chemo/Biosensing
and Chemometrics, College of Chemistry and Chemical Engineering, Key
Laboratory for Bio-Nanotechnology and Molecular Engineering of Hunan
Province, Hunan University, Changsha 410082, People’s Republic of China
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183
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Abstract
Biomaterials that interface with biological systems are used to deliver drugs safely and efficiently; to prevent, detect, and treat disease; to assist the body as it heals; and to engineer functional tissues outside of the body for organ replacement. The field has evolved beyond selecting materials that were originally designed for other applications with a primary focus on properties that enabled restoration of function and mitigation of acute pathology. Biomaterials are now designed rationally with controlled structure and dynamic functionality to integrate with biological complexity and perform tailored, high-level functions in the body. The transition has been from permissive to promoting biomaterials that are no longer bioinert but bioactive. This perspective surveys recent developments in the field of polymeric and soft biomaterials with a specific emphasis on advances in nano- to macroscale control, static to dynamic functionality, and biocomplex materials.
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184
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Soloperto A, Palazzolo G, Tsushima H, Chieregatti E, Vassalli M, Difato F. Laser Nano-Neurosurgery from Gentle Manipulation to Nano-Incision of Neuronal Cells and Scaffolds: An Advanced Neurotechnology Tool. Front Neurosci 2016; 10:101. [PMID: 27013962 PMCID: PMC4786546 DOI: 10.3389/fnins.2016.00101] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2015] [Accepted: 02/26/2016] [Indexed: 11/13/2022] Open
Abstract
Current optical approaches are progressing far beyond the scope of monitoring the structure and function of living matter, and they are becoming widely recognized as extremely precise, minimally-invasive, contact-free handling tools. Laser manipulation of living tissues, single cells, or even single-molecules is becoming a well-established methodology, thus founding the onset of new experimental paradigms and research fields. Indeed, a tightly focused pulsed laser source permits complex tasks such as developing engineered bioscaffolds, applying calibrated forces, transfecting, stimulating, or even ablating single cells with subcellular precision, and operating intracellular surgical protocols at the level of single organelles. In the present review, we report the state of the art of laser manipulation in neuroscience, to inspire future applications of light-assisted tools in nano-neurosurgery.
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Affiliation(s)
- Alessandro Soloperto
- Neuroscience and Brain Technologies Department, Istituto Italiano di Tecnologia Genoa, Italy
| | - Gemma Palazzolo
- Neuroscience and Brain Technologies Department, Istituto Italiano di Tecnologia Genoa, Italy
| | - Hanako Tsushima
- Neuroscience and Brain Technologies Department, Istituto Italiano di Tecnologia Genoa, Italy
| | - Evelina Chieregatti
- Neuroscience and Brain Technologies Department, Istituto Italiano di Tecnologia Genoa, Italy
| | - Massimo Vassalli
- Institute of Biophysics, National Research Council of Italy Genoa, Italy
| | - Francesco Difato
- Neuroscience and Brain Technologies Department, Istituto Italiano di Tecnologia Genoa, Italy
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185
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Magin CM, Alge DL, Anseth KS. Bio-inspired 3D microenvironments: a new dimension in tissue engineering. Biomed Mater 2016; 11:022001. [DOI: 10.1088/1748-6041/11/2/022001] [Citation(s) in RCA: 67] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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186
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Kumar A, Nune KC, Misra RDK. Biological functionality of extracellular matrix-ornamented three-dimensional printed hydroxyapatite scaffolds. J Biomed Mater Res A 2016; 104:1343-51. [PMID: 26799466 DOI: 10.1002/jbm.a.35664] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2015] [Revised: 01/14/2016] [Accepted: 01/20/2016] [Indexed: 11/11/2022]
Abstract
Three-dimensional (3D) printing is considered an ideally suitable method to fabricate patient specific implantable devices. The approach enabled to produce a porous scaffold with tailored physical, mechanical, and biological properties because of the flexibility to tune the scaffold architecture. The objective of the study described was to elucidate the determining role of cell-laid extracellular matrix (ECM) in impacting biological response. In this regard, to mimic the natural ECM environment or the attributes of the native tissue, a natural ECM analogue surface was produced on the 3D printed and sintered hydroxyapatite (HA) scaffold surface by the mineralized ECM of the osteoblast. This involved the growth of osteoblast on 3D printed scaffolds, followed by differentiation to deposit the mineralized ECM on the biomaterial surface. The cells were removed from the mineralized matrix using freeze-thaw cycles to obtain a decellularized extracellular matrix (dECM) on the biomaterial surface. Subsequently, seeding of osteoblast on dECM-ornamented HA scaffolds led to 3D growth with enhanced expression of prominent proteins, actin and vinculin. Based on preliminary observations of present study, it was underscored that HA scaffolds-ornamented with dECM provided an optimized microenvironment conducive to the growth of 3D structural tissue and favorably promoted biological functionality because of the availability of an environment that promoted cell-cell and cell-scaffold interaction. The primary advantage of dECM is that it enabled constructive remodeling and promoted the formation of tissue in lieu of less functional tissue. The study opens-up a new path for printing of 3D structures suitable to treat segmental bone defects. © 2016 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 104A: 1343-1351, 2016.
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Affiliation(s)
- A Kumar
- Department of Metallurgical, Materials and Biomedical Engineering, 500 W. University Avenue, University of Texas at El Paso, El Paso, Texas, 79968
| | - K C Nune
- Department of Metallurgical, Materials and Biomedical Engineering, 500 W. University Avenue, University of Texas at El Paso, El Paso, Texas, 79968
| | - R D K Misra
- Department of Metallurgical, Materials and Biomedical Engineering, 500 W. University Avenue, University of Texas at El Paso, El Paso, Texas, 79968
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187
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Rosales AM, Anseth KS. The design of reversible hydrogels to capture extracellular matrix dynamics. NATURE REVIEWS. MATERIALS 2016; 1:15012. [PMID: 29214058 PMCID: PMC5714327 DOI: 10.1038/natrevmats.2015.12] [Citation(s) in RCA: 455] [Impact Index Per Article: 56.9] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
The extracellular matrix (ECM) is a dynamic environment that constantly provides physical and chemical cues to embedded cells. Much progress has been made in engineering hydrogels that can mimic the ECM, but hydrogel properties are, in general, static. To recapitulate the dynamic nature of the ECM, many reversible chemistries have been incorporated into hydrogels to regulate cell spreading, biochemical ligand presentation and matrix mechanics. For example, emerging trends include the use of molecular photoswitches or biomolecule hybridization to control polymer chain conformation, thereby enabling the modulation of the hydrogel between two states on demand. In addition, many non-covalent, dynamic chemical bonds have found increasing use as hydrogel crosslinkers or tethers for cell signalling molecules. These reversible chemistries will provide greater temporal control of adhered cell behaviour, and they allow for more advanced in vitro models and tissue-engineering scaffolds to direct cell fate.
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Affiliation(s)
- Adrianne M Rosales
- Department of Chemical and Biological Engineering, University of Colorado Boulder
| | - Kristi S Anseth
- Department of Chemical and Biological Engineering, University of Colorado Boulder
- Howard Hughes Medical Institute, University of Colorado Boulder, Boulder, Colorado 80303, USA
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188
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Gomez EJ, Gerhardt K, Judd J, Tabor JJ, Suh J. Light-Activated Nuclear Translocation of Adeno-Associated Virus Nanoparticles Using Phytochrome B for Enhanced, Tunable, and Spatially Programmable Gene Delivery. ACS NANO 2016; 10:225-237. [PMID: 26618393 DOI: 10.1021/acsnano.5b05558] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Gene delivery vectors that are activated by external stimuli may allow improved control over the location and the degree of gene expression in target populations of cells. Light is an attractive stimulus because it does not cross-react with cellular signaling networks, has negligible toxicity, is noninvasive, and can be applied in space and time with unparalleled precision. We used the previously engineered red (R)/far-red (FR) light-switchable protein phytochrome B (PhyB) and its R light dependent interaction partner phytochrome interacting factor 6 (PIF6) from Arabidopsis thaliana to engineer an adeno-associated virus (AAV) platform whose gene delivery efficiency is controlled by light. Upon exposure to R light, AAV engineered to display PIF6 motifs on the capsid bind to PhyB tagged with a nuclear localization sequence (NLS), resulting in significantly increased translocation of viruses into the host cell nucleus and overall gene delivery efficiency. By modulating the ratio of R to FR light, the gene delivery efficiency can be tuned to as little as 35% or over 600% of the unengineered AAV. We also demonstrate spatial control of gene delivery using projected patterns of codelivered R and FR light. Overall, our successful use of light-switchable proteins in virus capsid engineering extends these important optogenetic tools into the adjacent realm of nucleic acid delivery and enables enhanced, tunable, and spatially controllable regulation of viral gene delivery. Our current light-triggered viral gene delivery prototype may be broadly useful for genetic manipulation of cells ex vivo or in vivo in transgenic model organisms, with the ultimate prospect of achieving dose- and site-specific gene expression profiles for either therapeutic (e.g., regenerative medicine) or fundamental discovery research efforts.
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Affiliation(s)
- Eric J Gomez
- Department of Bioengineering, ‡Systems, Synthetic, and Physical Biology Program, and §Department of Biochemistry and Cell Biology, Rice University , Houston, Texas 77005, United States
| | - Karl Gerhardt
- Department of Bioengineering, ‡Systems, Synthetic, and Physical Biology Program, and §Department of Biochemistry and Cell Biology, Rice University , Houston, Texas 77005, United States
| | - Justin Judd
- Department of Bioengineering, ‡Systems, Synthetic, and Physical Biology Program, and §Department of Biochemistry and Cell Biology, Rice University , Houston, Texas 77005, United States
| | - Jeffrey J Tabor
- Department of Bioengineering, ‡Systems, Synthetic, and Physical Biology Program, and §Department of Biochemistry and Cell Biology, Rice University , Houston, Texas 77005, United States
| | - Junghae Suh
- Department of Bioengineering, ‡Systems, Synthetic, and Physical Biology Program, and §Department of Biochemistry and Cell Biology, Rice University , Houston, Texas 77005, United States
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189
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Goulet-Hanssens A, Magdesian MH, Lopez-Ayon GM, Grutter P, Barrett CJ. Reversing adhesion with light: a general method for functionalized bead release from cells. Biomater Sci 2016; 4:1193-6. [DOI: 10.1039/c6bm00168h] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Coated beads retain great importance in the study of cell adhesion and intracellular communication; we present a generally applicable method permitting spatiotemporal control of bead adhesion from cells.
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Affiliation(s)
| | | | | | - Peter Grutter
- Program in NeuroEngineering
- McGill University
- Montreal
- Canada
- Department of Physics
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190
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Bai T, Sinclair A, Sun F, Jain P, Hung HC, Zhang P, Ella-Menye JR, Liu W, Jiang S. Harnessing isomerization-mediated manipulation of nonspecific cell/matrix interactions to reversibly trigger and suspend stem cell differentiation. Chem Sci 2016; 7:333-338. [PMID: 28791097 PMCID: PMC5518545 DOI: 10.1039/c5sc03244j] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2015] [Accepted: 10/06/2015] [Indexed: 02/06/2023] Open
Abstract
Specific protein-cell and drug-cell interactions have been widely used to manipulate stem cell fate. Despite extensive studies, most current platforms cannot realize reversible manipulation of stem cell differentiation. In this work, we report a photodynamic zwitterionic hydrogel capable of reversibly triggering and suspending the differentiation process via manipulating nonspecific interactions between cultured stem cells and the hydrogel. The differentiation state of stem cells can be altered by exposing the hydrogel to a selected light program, while differentiation can be immediately suspended when near-infrared exposure converts the hydrogel into a purely zwitterionic form. While many other studies apply specific interactions to control stem cell fate, this work provides a completely different approach-allowing reversible, real-time and localized manipulation of stem cell fate choice via nonspecific interactions.
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Affiliation(s)
- Tao Bai
- Department of Chemical Engineering , University of Washington , Seattle , Washington 98195 , USA .
| | - Andrew Sinclair
- Department of Chemical Engineering , University of Washington , Seattle , Washington 98195 , USA .
| | - Fang Sun
- Department of Chemical Engineering , University of Washington , Seattle , Washington 98195 , USA .
| | - Priyesh Jain
- Department of Chemical Engineering , University of Washington , Seattle , Washington 98195 , USA .
| | - Hsiang-Chieh Hung
- Department of Chemical Engineering , University of Washington , Seattle , Washington 98195 , USA .
| | - Peng Zhang
- Department of Chemical Engineering , University of Washington , Seattle , Washington 98195 , USA .
| | - Jean-Rene Ella-Menye
- Department of Chemical Engineering , University of Washington , Seattle , Washington 98195 , USA .
| | - Wenguang Liu
- School of Materials Science and Engineering , Tianjin Key Laboratory of Composite and Functional Materials , Tianjin University , Tianjin 300072 , P. R. China
| | - Shaoyi Jiang
- Department of Chemical Engineering , University of Washington , Seattle , Washington 98195 , USA .
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191
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Hernandez DS, Ritschdorff ET, Seidlits SK, Schmidt CE, Shear JB. Functionalizing micro-3D-printed protein hydrogels for cell adhesion and patterning. J Mater Chem B 2016; 4:1818-1826. [DOI: 10.1039/c5tb02070k] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
A versatile and dynamic photoconjugation platform is introduced that provides high, 3D spatial resolution for functionalizing micro-3D-printed (μ-3DP) hydrogels. Schwann cells are patterned on μ-3DP hydrogels precisely labeled with RGD, a cell adhesive peptide, demonstrating utility of this platform for cell culture applications.
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Affiliation(s)
- D. S. Hernandez
- Department of Chemistry and Biochemistry
- The University of Texas at Austin
- Austin
- USA
| | - E. T. Ritschdorff
- Department of Chemistry and Biochemistry
- The University of Texas at Austin
- Austin
- USA
| | - S. K. Seidlits
- Department of Bioengineering
- University of California Los Angeles
- Los Angeles
- USA
| | - C. E. Schmidt
- Department of Biomedical Engineering
- University of Florida
- Gainesville
- USA
| | - J. B. Shear
- Department of Chemistry and Biochemistry
- The University of Texas at Austin
- Austin
- USA
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192
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Benetti EM, Gunnewiek MK, van Blitterswijk CA, Julius Vancso G, Moroni L. Mimicking natural cell environments: design, fabrication and application of bio-chemical gradients on polymeric biomaterial substrates. J Mater Chem B 2016; 4:4244-4257. [DOI: 10.1039/c6tb00947f] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Gradients of biomolecules on synthetic, solid substrates can efficiently mimic the natural, graded variation of properties of the extracellular matrix (ECM).
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Affiliation(s)
- Edmondo M. Benetti
- Department of Materials Science and Technology of Polymers
- MESA+ Institute for Nanotechnology
- University of Twente
- 7500 AE Enschede
- The Netherlands
| | - Michel Klein Gunnewiek
- Department of Materials Science and Technology of Polymers
- MESA+ Institute for Nanotechnology
- University of Twente
- 7500 AE Enschede
- The Netherlands
| | - Clemens A. van Blitterswijk
- Department of Complex Tissue Regeneration
- MERLN Institute for Technology Inspired Regenerative Medicine
- Maastricht University
- 6200 MD Maastricht
- The Netherlands
| | - G. Julius Vancso
- Department of Materials Science and Technology of Polymers
- MESA+ Institute for Nanotechnology
- University of Twente
- 7500 AE Enschede
- The Netherlands
| | - Lorenzo Moroni
- Department of Complex Tissue Regeneration
- MERLN Institute for Technology Inspired Regenerative Medicine
- Maastricht University
- 6200 MD Maastricht
- The Netherlands
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193
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Lequoy P, Murschel F, Liberelle B, Lerouge S, De Crescenzo G. Controlled co-immobilization of EGF and VEGF to optimize vascular cell survival. Acta Biomater 2016; 29:239-247. [PMID: 26485166 DOI: 10.1016/j.actbio.2015.10.026] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2015] [Revised: 09/09/2015] [Accepted: 10/16/2015] [Indexed: 01/02/2023]
Abstract
Growth factors (GFs) are potent signaling molecules that act in a coordinated manner in physiological processes such as tissue healing or angiogenesis. Co-immobilizing GFs on materials while preserving their bioactivity still represents a major challenge in the field of tissue regeneration and bioactive implants. In this study, we explore the potential of an oriented immobilization technique based on two high affinity peptides, namely the Ecoil and Kcoil, to allow for the simultaneous capture of the epidermal growth factor (EGF) and the vascular endothelial growth factor (VEGF) on a chondroitin sulfate coating. This glycosaminoglycan layer was selected as it promotes cell adhesion but reduces non-specific adsorption of plasma proteins. We demonstrate here that both Ecoil-tagged GFs can be successfully immobilized on chondroitin sulfate surfaces that had been pre-decorated with the Kcoil peptide. As shown by direct ELISA, changing the incubation concentration of the various GFs enabled to control their grafted amount. Moreover, cell survival studies with endothelial and smooth muscle cells confirmed that our oriented tethering strategy preserved GF bioactivity. Of salient interest, co-immobilizing EGF and VEGF led to better cell survival compared to each GF captured alone, suggesting a synergistic effect of these GFs. Altogether, these results demonstrate the potential of coiled-coil oriented GF tethering for the co-immobilization of macromolecules; it thus open the way to the generation of biomaterials surfaces with fine-tuned biological properties. STATEMENT OF SIGNIFICANCE Growth factors are potent signaling molecules that act in a coordinated manner in physiological processes such as tissue healing or angiogenesis. Controlled coimmobilization of growth factors on biomaterials while preserving their bioactivity represents a major challenge in the field of tissue regeneration and bioactive implants. This study demonstrates the potential of an oriented immobilization technique based on two high affinity peptides to allow for the simultaneous capture of epidermal growth factor (EGF) and vascular endothelial growth factor (VEGF). Our system allowed an efficient control on growth factor immobilization by adjusting the incubation concentrations of EGF and VEGF. Of salient interest, co-immobilizing of specific ratios of EGF and VEGF demonstrated a synergistic effect on cell survival compared to each GF captured alone.
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Affiliation(s)
- Pauline Lequoy
- Department of Mechanical Engineering, École de technologie supérieure (ÉTS), 1100 boul. Notre-Dame Ouest, Montréal, QC H3C 1K3, Canada; Research Centre, Centre Hospitalier de l'Université de Montréal (CRCHUM), 900 St Denis, Tour Viger, Montréal, QC H2X 0A9, Canada
| | - Frederic Murschel
- Department of Chemical Engineering, École Polytechnique de Montréal, P.O. Box 6079, succ. Centre-Ville, Montréal, QC H3C 3A7, Canada
| | - Benoit Liberelle
- Department of Chemical Engineering, École Polytechnique de Montréal, P.O. Box 6079, succ. Centre-Ville, Montréal, QC H3C 3A7, Canada
| | - Sophie Lerouge
- Department of Mechanical Engineering, École de technologie supérieure (ÉTS), 1100 boul. Notre-Dame Ouest, Montréal, QC H3C 1K3, Canada; Research Centre, Centre Hospitalier de l'Université de Montréal (CRCHUM), 900 St Denis, Tour Viger, Montréal, QC H2X 0A9, Canada.
| | - Gregory De Crescenzo
- Department of Chemical Engineering, École Polytechnique de Montréal, P.O. Box 6079, succ. Centre-Ville, Montréal, QC H3C 3A7, Canada.
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194
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Hettiaratchi MH, Guldberg RE, McDevitt TC. Biomaterial strategies for controlling stem cell fate via morphogen sequestration. J Mater Chem B 2016; 4:3464-3481. [DOI: 10.1039/c5tb02575c] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
This review explores the role of protein sequestration in the stem cell niche and how it has inspired the design of biomaterials that exploit natural protein sequestration to influence stem cell fate.
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Affiliation(s)
- M. H. Hettiaratchi
- The Parker H. Petit Institute for Bioengineering and Bioscience
- Georgia Institute of Technology
- Atlanta
- USA
- The Wallace H. Coulter Department of Biomedical Engineering
| | - R. E. Guldberg
- The Parker H. Petit Institute for Bioengineering and Bioscience
- Georgia Institute of Technology
- Atlanta
- USA
- The George W. Woodruff School of Mechanical Engineering
| | - T. C. McDevitt
- The Gladstone Institute of Cardiovascular Disease
- San Francisco
- USA
- The Department of Bioengineering and Therapeutic Sciences
- University of California San Francisco
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195
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Cornwell DJ, Daubney OJ, Smith DK. Photopatterned Multidomain Gels: Multi-Component Self-Assembled Hydrogels Based on Partially Self-Sorting 1,3:2,4-Dibenzylidene-d-sorbitol Derivatives. J Am Chem Soc 2015; 137:15486-92. [DOI: 10.1021/jacs.5b09691] [Citation(s) in RCA: 100] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Daniel J. Cornwell
- Department
of Chemistry, University of York, Heslington, York YO10
5DD, U.K
| | - Oliver J. Daubney
- Department
of Chemistry, University of York, Heslington, York YO10
5DD, U.K
| | - David K. Smith
- Department
of Chemistry, University of York, Heslington, York YO10
5DD, U.K
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196
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Esfandiari F, Mashinchian O, Ashtiani MK, Ghanian MH, Hayashi K, Saei AA, Mahmoudi M, Baharvand H. Possibilities in Germ Cell Research: An Engineering Insight. Trends Biotechnol 2015; 33:735-746. [DOI: 10.1016/j.tibtech.2015.09.004] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2015] [Revised: 09/06/2015] [Accepted: 09/08/2015] [Indexed: 01/05/2023]
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197
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Pawar K, Prang P, Müller R, Caioni M, Bogdahn U, Kunz W, Weidner N. Intrinsic and extrinsic determinants of central nervous system axon outgrowth into alginate-based anisotropic hydrogels. Acta Biomater 2015; 27:131-139. [PMID: 26310676 DOI: 10.1016/j.actbio.2015.08.032] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2015] [Revised: 07/12/2015] [Accepted: 08/21/2015] [Indexed: 12/20/2022]
Abstract
Appropriate target reinnervation and functional recovery after spinal cord injury depend on longitudinally directed regrowth of injured axons. Anisotropic alginate-based capillary hydrogels (ACH) support peripheral nervous system derived axon growth, which is accompanied by glial supporting cell migration into the ACH. The aim of the present study was to analyze central nervous system (CNS) derived (entorhinal cortex, spinal cord slice cultures) axon regrowth into ACH containing linearly aligned capillaries of defined capillary sizes without and with gelatin constituent. Anisotropic ACH were prepared by ionotropic gel formation using Ba(2+), Cu(2+), Sr(2+), or Zn(2+) ions resulting in gels with average capillary diameters of 11, 13, 29, and 89μm, respectively. Postnatal rat entorhinal cortex or spinal cord slice cultures were placed on top of 500μm thick ACH. Seven days later axon growth and astroglial migration into the ACH were determined. Axon density within capillaries correlated positively with increasing capillary diameters, whereas longitudinally oriented axon outgrowth diminished with increasing capillary diameter. Axons growing into the hydrogels were always accompanied by astrocytes strongly suggesting that respective cells are required to mediate CNS axon elongation into ACH. Overall, midsize capillary diameter ACH appeared to be the best compromise between axon density and orientation. Taken together, ACH promote CNS axon ingrowth, which is determined by the capillary diameter and migration of slice culture derived astroglia into the hydrogel. STATEMENT OF SIGNIFICANCE Biomaterials are investigated as therapeutic tools to bridge irreversible lesions following traumatic spinal cord injury. The goal is to develop biomaterials, which promote longitudinally oriented regeneration of as many injured axons as possible as prerequisite for substantial functional recovery. Optimal parameters of the biomaterial have yet to be defined. In the present study we show that increasing capillary diameters within such hydrogels enhanced central nervous system axon regeneration at the expense of longitudinal orientation. Axon ingrowth into the hydrogels was only observed in the presence of glial supporting cells, namely astrocytes. This suggests that alginate-based hydrogels need to be colonized with respective cells in order to facilitate axon ingrowth.
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198
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Delplace V, Payne S, Shoichet M. Delivery strategies for treatment of age-related ocular diseases: From a biological understanding to biomaterial solutions. J Control Release 2015; 219:652-668. [PMID: 26435454 DOI: 10.1016/j.jconrel.2015.09.065] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2015] [Revised: 09/28/2015] [Accepted: 09/29/2015] [Indexed: 12/24/2022]
Abstract
Age-related ocular diseases, such as age-related macular degeneration (AMD), diabetic retinopathy, and glaucoma, result in life-long functional deficits and enormous global health care costs. As the worldwide population ages, vision loss has become a major concern for both economic and human health reasons. Due to recent research into biomaterials and nanotechnology major advances have been gained in the field of ocular delivery. This review provides a summary and discussion of the most recent strategies employed for the delivery of both drugs and cells to the eye to treat a variety of age-related diseases. It emphasizes the current challenges and limitations to ocular delivery and how the use of innovative materials can overcome these issues and ultimately provide treatment for age-related degeneration and regeneration of lost tissues. This review also provides critical considerations and an outlook for future studies in the field of ophthalmic delivery.
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Affiliation(s)
- Vianney Delplace
- Department of Chemical Engineering and Applied Chemistry, University of Toronto, 200 College Street, Toronto, ON M5S 3E5, Canada; Institute of Biomaterials and Biomedical Engineering, 164 College Street, Toronto, ON M5S 3G9, Canada
| | - Samantha Payne
- Department of Chemical Engineering and Applied Chemistry, University of Toronto, 200 College Street, Toronto, ON M5S 3E5, Canada; Institute of Biomaterials and Biomedical Engineering, 164 College Street, Toronto, ON M5S 3G9, Canada
| | - Molly Shoichet
- Department of Chemical Engineering and Applied Chemistry, University of Toronto, 200 College Street, Toronto, ON M5S 3E5, Canada; Institute of Biomaterials and Biomedical Engineering, 164 College Street, Toronto, ON M5S 3G9, Canada.
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199
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de Gracia Lux C, Lux J, Collet G, He S, Chan M, Olejniczak J, Foucault-Collet A, Almutairi A. Short Soluble Coumarin Crosslinkers for Light-Controlled Release of Cells and Proteins from Hydrogels. Biomacromolecules 2015; 16:3286-96. [DOI: 10.1021/acs.biomac.5b00950] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Caroline de Gracia Lux
- Skaggs School of Pharmacy and Pharmaceutical Sciences, §Department of NanoEngineering, ‡Department of Chemistry
and Biochemistry, and ∥Center for Excellence in Nanomedicine and Engineering, University of California at San Diego, 9500 Gilman Drive, La Jolla, California 92093-0600, United States
| | - Jacques Lux
- Skaggs School of Pharmacy and Pharmaceutical Sciences, §Department of NanoEngineering, ‡Department of Chemistry
and Biochemistry, and ∥Center for Excellence in Nanomedicine and Engineering, University of California at San Diego, 9500 Gilman Drive, La Jolla, California 92093-0600, United States
| | - Guillaume Collet
- Skaggs School of Pharmacy and Pharmaceutical Sciences, §Department of NanoEngineering, ‡Department of Chemistry
and Biochemistry, and ∥Center for Excellence in Nanomedicine and Engineering, University of California at San Diego, 9500 Gilman Drive, La Jolla, California 92093-0600, United States
| | - Sha He
- Skaggs School of Pharmacy and Pharmaceutical Sciences, §Department of NanoEngineering, ‡Department of Chemistry
and Biochemistry, and ∥Center for Excellence in Nanomedicine and Engineering, University of California at San Diego, 9500 Gilman Drive, La Jolla, California 92093-0600, United States
| | - Minnie Chan
- Skaggs School of Pharmacy and Pharmaceutical Sciences, §Department of NanoEngineering, ‡Department of Chemistry
and Biochemistry, and ∥Center for Excellence in Nanomedicine and Engineering, University of California at San Diego, 9500 Gilman Drive, La Jolla, California 92093-0600, United States
| | - Jason Olejniczak
- Skaggs School of Pharmacy and Pharmaceutical Sciences, §Department of NanoEngineering, ‡Department of Chemistry
and Biochemistry, and ∥Center for Excellence in Nanomedicine and Engineering, University of California at San Diego, 9500 Gilman Drive, La Jolla, California 92093-0600, United States
| | - Alexandra Foucault-Collet
- Skaggs School of Pharmacy and Pharmaceutical Sciences, §Department of NanoEngineering, ‡Department of Chemistry
and Biochemistry, and ∥Center for Excellence in Nanomedicine and Engineering, University of California at San Diego, 9500 Gilman Drive, La Jolla, California 92093-0600, United States
| | - Adah Almutairi
- Skaggs School of Pharmacy and Pharmaceutical Sciences, §Department of NanoEngineering, ‡Department of Chemistry
and Biochemistry, and ∥Center for Excellence in Nanomedicine and Engineering, University of California at San Diego, 9500 Gilman Drive, La Jolla, California 92093-0600, United States
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200
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Tan A, Chawla R, G N, Mahdibeiraghdar S, Jeyaraj R, Rajadas J, Hamblin MR, Seifalian AM. Nanotechnology and regenerative therapeutics in plastic surgery: The next frontier. J Plast Reconstr Aesthet Surg 2015; 69:1-13. [PMID: 26422652 DOI: 10.1016/j.bjps.2015.08.028] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2014] [Revised: 07/08/2015] [Accepted: 08/23/2015] [Indexed: 12/28/2022]
Abstract
The rapid ascent of nanotechnology and regenerative therapeutics as applied to medicine and surgery has seen an exponential rise in the scale of research generated in this field. This is evidenced not only by the sheer volume of papers dedicated to nanotechnology but also in a large number of new journals dedicated to nanotechnology and regenerative therapeutics specifically to medicine and surgery. Aspects of nanotechnology that have already brought benefits to these areas include advanced drug delivery platforms, molecular imaging and materials engineering for surgical implants. Particular areas of interest include nerve regeneration, burns and wound care, artificial skin with nanoelectronic sensors and head and neck surgery. This study presents a review of nanotechnology and regenerative therapeutics, with focus on its applications and implications in plastic surgery.
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Affiliation(s)
- Aaron Tan
- UCL Medical School, University College London (UCL), London, England, UK; Biomaterials & Advanced Drug Delivery Laboratory (BioADD), Stanford University School of Medicine, Stanford University, Stanford, CA, USA.
| | - Reema Chawla
- Department of Plastic & Reconstructive Surgery, John Radcliffe Hospital, Oxford University Hospitals NHS Trust, Oxford, England, UK
| | - Natasha G
- UCL Medical School, University College London (UCL), London, England, UK
| | - Sara Mahdibeiraghdar
- UCL Institute of Child Health, University College London (UCL), Great Ormond Street Hospital for Children NHS Foundation Trust, London, England, UK; School of Medicine, Dentistry and Biomedical Sciences, Queen's University Belfast, Belfast, Northern Ireland, UK
| | - Rebecca Jeyaraj
- UCL Medical School, University College London (UCL), London, England, UK
| | - Jayakumar Rajadas
- Biomaterials & Advanced Drug Delivery Laboratory (BioADD), Stanford University School of Medicine, Stanford University, Stanford, CA, USA
| | - Michael R Hamblin
- Wellman Centre for Photomedicine, Massachusetts General Hospital, Boston, MA, USA; Department of Dermatology, Harvard Medical School, Boston, MA, USA; Harvard-MIT Division of Health Sciences & Technology, Cambridge, MA, USA
| | - Alexander M Seifalian
- Centre for Nanotechnology & Regenerative Medicine, UCL Division of Surgery & Interventional Science, University College London (UCL), London, England, UK; NanoRegMed Ltd, London, England, UK
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