1
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Callegari F, Brofiga M, Tedesco M, Massobrio P. Electrophysiological features of cortical 3D networks are deeply modulated by scaffold properties. APL Bioeng 2024; 8:036112. [PMID: 39193551 PMCID: PMC11348497 DOI: 10.1063/5.0214745] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2024] [Accepted: 08/05/2024] [Indexed: 08/29/2024] Open
Abstract
Three-dimensionality (3D) was proven essential for developing reliable models for different anatomical compartments and many diseases. However, the neuronal compartment still poses a great challenge as we still do not understand precisely how the brain computes information and how the complex chain of neuronal events can generate conscious behavior. Therefore, a comprehensive model of neuronal tissue has not yet been found. The present work was conceived in this framework: we aimed to contribute to what must be a collective effort by filling in some information on possible 3D strategies to pursue. We compared directly different kinds of scaffolds (i.e., PDMS sponges, thermally crosslinked hydrogels, and glass microbeads) in their effect on neuronal network activity recorded using micro-electrode arrays. While the overall rate of spiking activity remained consistent, the type of scaffold had a notable impact on bursting dynamics. The frequency, density of bursts, and occurrence of random spikes were all affected. The examination of inter-burst intervals revealed distinct burst generation patterns unique to different scaffold types. Network burst propagation unveiled divergent trends among configurations. Notably, it showed the most differences, underlying that functional variations may arise from a different 3D spatial organization. This evidence suggests that not all 3D neuronal constructs can sustain the same level of richness of activity. Furthermore, we commented on the reproducibility, efficacy, and scalability of the methods, where the beads still offer superior performances. By comparing different 3D scaffolds, our results move toward understanding the best strategies to develop functional 3D neuronal units for reliable pre-clinical studies.
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Affiliation(s)
- Francesca Callegari
- Department of Informatics, Bioengineering, Robotics, and Systems Engineering (DIBRIS), University of Genova, Genova, Italy
| | | | - Mariateresa Tedesco
- Department of Informatics, Bioengineering, Robotics, and Systems Engineering (DIBRIS), University of Genova, Genova, Italy
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2
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Coppini A, Falconieri A, Mualem O, Nasrin SR, Roudon M, Saper G, Hess H, Kakugo A, Raffa V, Shefi O. Can repetitive mechanical motion cause structural damage to axons? Front Mol Neurosci 2024; 17:1371738. [PMID: 38912175 PMCID: PMC11191579 DOI: 10.3389/fnmol.2024.1371738] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2024] [Accepted: 05/23/2024] [Indexed: 06/25/2024] Open
Abstract
Biological structures have evolved to very efficiently generate, transmit, and withstand mechanical forces. These biological examples have inspired mechanical engineers for centuries and led to the development of critical insights and concepts. However, progress in mechanical engineering also raises new questions about biological structures. The past decades have seen the increasing study of failure of engineered structures due to repetitive loading, and its origin in processes such as materials fatigue. Repetitive loading is also experienced by some neurons, for example in the peripheral nervous system. This perspective, after briefly introducing the engineering concept of mechanical fatigue, aims to discuss the potential effects based on our knowledge of cellular responses to mechanical stresses. A particular focus of our discussion are the effects of mechanical stress on axons and their cytoskeletal structures. Furthermore, we highlight the difficulty of imaging these structures and the promise of new microscopy techniques. The identification of repair mechanisms and paradigms underlying long-term stability is an exciting and emerging topic in biology as well as a potential source of inspiration for engineers.
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Affiliation(s)
| | | | - Oz Mualem
- Faculty of Engineering, Bar Ilan Institute of Nanotechnologies and Advanced Materials, Gonda Brain Research Center, Bar Ilan University, Ramat Gan, Israel
| | - Syeda Rubaiya Nasrin
- Graduate School of Science, Division of Physics and Astronomy, Kyoto University, Kyoto, Japan
| | - Marine Roudon
- Department of Biomedical Engineering, Columbia University, New York, NY, United States
| | - Gadiel Saper
- Department of Biomedical Engineering, Columbia University, New York, NY, United States
| | - Henry Hess
- Department of Biomedical Engineering, Columbia University, New York, NY, United States
| | - Akira Kakugo
- Graduate School of Science, Division of Physics and Astronomy, Kyoto University, Kyoto, Japan
| | | | - Orit Shefi
- Faculty of Engineering, Bar Ilan Institute of Nanotechnologies and Advanced Materials, Gonda Brain Research Center, Bar Ilan University, Ramat Gan, Israel
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3
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Joshi IM, Mansouri M, Ahmed A, De Silva D, Simon RA, Esmaili P, Desa DE, Elias TM, Brown EB, Abhyankar VV. Microengineering 3D Collagen Matrices with Tumor-Mimetic Gradients in Fiber Alignment. ADVANCED FUNCTIONAL MATERIALS 2024; 34:2308071. [PMID: 38706986 PMCID: PMC11067715 DOI: 10.1002/adfm.202308071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Indexed: 05/07/2024]
Abstract
Collagen fibers in the 3D tumor microenvironment (TME) exhibit complex alignment landscapes that are critical in directing cell migration through a process called contact guidance. Previous in vitro work studying this phenomenon has focused on quantifying cell responses in uniformly aligned environments. However, the TME also features short-range gradients in fiber alignment that result from cell-induced traction forces. Although the influence of graded biophysical taxis cues is well established, cell responses to physiological alignment gradients remain largely unexplored. In this work, fiber alignment gradients in biopsy samples are characterized and recreated using a new microfluidic biofabrication technique to achieve tunable sub-millimeter to millimeter scale gradients. This study represents the first successful engineering of continuous alignment gradients in soft, natural biomaterials. Migration experiments on graded alignment show that HUVECs exhibit increased directionality, persistence, and speed compared to uniform and unaligned fiber architectures. Similarly, patterned MDA-MB-231 aggregates exhibit biased migration toward increasing fiber alignment, suggesting a role for alignment gradients as a taxis cue. This user-friendly approach, requiring no specialized equipment, is anticipated to offer new insights into the biophysical cues that cells interpret as they traverse the extracellular matrix, with broad applicability in healthy and diseased tissue environments.
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Affiliation(s)
- Indranil M. Joshi
- Department of Biomedical Engineering, Rochester Institute of Technology, Rochester, NY
| | - Mehran Mansouri
- Department of Biomedical Engineering, Rochester Institute of Technology, Rochester, NY
| | - Adeel Ahmed
- Department of Biomedical Engineering, Rochester Institute of Technology, Rochester, NY
| | - Dinindu De Silva
- Department of Biomedical Engineering, Rochester Institute of Technology, Rochester, NY
| | - Richard A. Simon
- Department of Biomedical Engineering, Rochester Institute of Technology, Rochester, NY
| | - Poorya Esmaili
- Department of Biomedical Engineering, Rochester Institute of Technology, Rochester, NY
| | - Danielle E. Desa
- Department of Biomedical Engineering, University of Rochester, Rochester, NY
| | - Tresa M. Elias
- Department of Biomedical Engineering, University of Rochester, Rochester, NY
| | - Edward B. Brown
- Department of Biomedical Engineering, University of Rochester, Rochester, NY
| | - Vinay V. Abhyankar
- Department of Biomedical Engineering, Rochester Institute of Technology, Rochester, NY
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4
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Nguyen UN, Lee FS, Caparaso SM, Leoni JT, Redwine AL, Wachs RA. Type I collagen concentration affects neurite outgrowth of adult rat DRG explants by altering mechanical properties of hydrogels. JOURNAL OF BIOMATERIALS SCIENCE. POLYMER EDITION 2024; 35:164-189. [PMID: 37847579 DOI: 10.1080/09205063.2023.2272479] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2023] [Accepted: 10/15/2023] [Indexed: 10/19/2023]
Abstract
Type I collagen is a predominant fibrous protein that makes up the extracellular matrix. Collagen enhances cell attachment and is commonly used in three-dimensional culture systems, to mimic the native extracellular environment, for primary sensory neurons such as dorsal root ganglia (DRG). However, the effects of collagen concentration on adult rat DRG neurite growth have not been assessed in a physiologically relevant, three-dimensional culture. This study focuses on the effects of type I collagen used in a methacrylated hyaluronic acid (MAHA)-laminin-collagen gel (triple gel) on primary adult rat DRG explants in vitro. DRGs were cultured in triple gels, and the neurite lengths and number of support cells were quantified. Increased collagen concentration significantly reduced neurite length but did not affect support cell counts. Mechanical properties, fiber diameter, diffusivity, and mesh size of the triple gels with varying collagen concentration were characterized to further understand the effects of type I collagen on hydrogel property that may affect adult rat DRG explants. Gel stiffness significantly increased as collagen concentration increased and is correlated to DRG neurite length. Collagen concentration also significantly impacted fiber diameter but there was no correlation with DRG neurite length. Increasing collagen concentration had no significant effect on mesh size and diffusivity of the hydrogel. These data suggest that increasing type I collagen minimizes adult rat DRG explant growth in vitro while raising gel stiffness. This knowledge can help develop more robust 3D culture platforms to study sensory neuron growth and design biomaterials for nerve regeneration applications.
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Affiliation(s)
- Uyen N Nguyen
- Department of Biological Systems Engineering, University of NE-Lincoln, Lincoln, NE, USA
| | - Fei San Lee
- Department of Biological Systems Engineering, University of NE-Lincoln, Lincoln, NE, USA
| | - Sydney M Caparaso
- Department of Biological Systems Engineering, University of NE-Lincoln, Lincoln, NE, USA
| | - Jack T Leoni
- Department of Biological Systems Engineering, University of NE-Lincoln, Lincoln, NE, USA
- Department of Biomedical Engineering, University of TN, Knoxville, TN, USA
| | - Adan L Redwine
- Department of Biological Systems Engineering, University of NE-Lincoln, Lincoln, NE, USA
| | - Rebecca A Wachs
- Department of Biological Systems Engineering, University of NE-Lincoln, Lincoln, NE, USA
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5
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Ghosh S, Ghosh S, Sharma H, Bhaskar R, Han SS, Sinha JK. Harnessing the power of biological macromolecules in hydrogels for controlled drug release in the central nervous system: A review. Int J Biol Macromol 2024; 254:127708. [PMID: 37923043 DOI: 10.1016/j.ijbiomac.2023.127708] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 10/20/2023] [Accepted: 10/25/2023] [Indexed: 11/07/2023]
Abstract
Hydrogels have immense potential in revolutionizing central nervous system (CNS) drug delivery, improving outcomes for neurological disorders. They serve as promising tools for controlled drug delivery to the CNS. Available hydrogel types include natural macromolecules (e.g., chitosan, hyaluronic acid, alginate), as well as hybrid hydrogels combining natural and synthetic polymers. Each type offers distinct advantages in terms of biocompatibility, mechanical properties, and drug release kinetics. Design and engineering considerations encompass hydrogel composition, crosslinking density, porosity, and strategies for targeted drug delivery. The review emphasizes factors affecting drug release profiles, such as hydrogel properties and formulation parameters. CNS drug delivery applications of hydrogels span a wide range of therapeutics, including small molecules, proteins and peptides, and nucleic acids. However, challenges like limited biodegradability, clearance, and effective CNS delivery persist. Incorporating 3D bioprinting technology with hydrogel-based CNS drug delivery holds the promise of highly personalized and precisely controlled therapeutic interventions for neurological disorders. The review explores emerging technologies like 3D bioprinting and nanotechnology as opportunities for enhanced precision and effectiveness in hydrogel-based CNS drug delivery. Continued research, collaboration, and technological advancements are vital for translating hydrogel-based therapies into clinical practice, benefiting patients with CNS disorders. This comprehensive review article delves into hydrogels for CNS drug delivery, addressing their types, design principles, applications, challenges, and opportunities for clinical translation.
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Affiliation(s)
- Shampa Ghosh
- GloNeuro, Sector 107, Vishwakarma Road, Noida, Uttar Pradesh 201301, India; ICMR - National Institute of Nutrition, Tarnaka, Hyderabad, Telangana 500007, India
| | - Soumya Ghosh
- GloNeuro, Sector 107, Vishwakarma Road, Noida, Uttar Pradesh 201301, India
| | - Hitaishi Sharma
- GloNeuro, Sector 107, Vishwakarma Road, Noida, Uttar Pradesh 201301, India
| | - Rakesh Bhaskar
- School of Chemical Engineering, Yeungnam University, Gyeonsang 38541, Republic of Korea; Research Institute of Cell Culture, Yeungnam University, Gyeonsang 38541, Republic of Korea.
| | - Sung Soo Han
- School of Chemical Engineering, Yeungnam University, Gyeonsang 38541, Republic of Korea; Research Institute of Cell Culture, Yeungnam University, Gyeonsang 38541, Republic of Korea.
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6
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Lewis M, David G, Jacobs D, Kuczwara P, Woessner AE, Kim JW, Quinn KP, Song Y. Neuro-regenerative behavior of adipose-derived stem cells in aligned collagen I hydrogels. Mater Today Bio 2023; 22:100762. [PMID: 37600354 PMCID: PMC10433000 DOI: 10.1016/j.mtbio.2023.100762] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2023] [Revised: 07/16/2023] [Accepted: 08/04/2023] [Indexed: 08/22/2023] Open
Abstract
Peripheral nerve injuries persist as a major clinical issue facing the US population and can be caused by stretch, laceration, or crush injuries. Small nerve gaps are simple to treat, and the nerve stumps can be reattached with sutures. In longer nerve gaps, traditional treatment options consist of autografts, hollow nerve guidance conduits, and, more recently, manufactured fibrous scaffolds. These manufactured scaffolds often incorporate stem cells, growth factors, and/or extracellular matrix (ECM) proteins to better mimic the native environment but can have issues with homogenous cell distribution or uniformly oriented neurite outgrowth in scaffolds without fibrous alignment. Here, we utilize a custom device to fabricate collagen I hydrogels with aligned fibers and encapsulated adipose-derived mesenchymal stem cells (ASCs) for potential use as a peripheral nerve repair graft. Initial results of our scaffold system revealed significantly less cell viability in higher collagen gel concentrations; 3 mg/mL gels showed 84.8 ± 7.3% viable cells, compared to 6 mg/mL gels viability of 76.7 ± 9.5%. Mechanical testing of the 3 mg/mL gels showed a Young's modulus of 6.5 ± 0.8 kPa nearly matching 7.45 kPa known to support Schwann cell migration. Further analysis of scaffolds coupled with stretching in vitro revealed heightened angiogenic and factor secretion, ECM deposition, fiber alignment, and dorsal root ganglia (DRG) neurite outgrowth along the axis of fiber alignment. Our platform serves as an in vitro testbed to assess neuro-regenerative potential of ASCs in aligned collagen fiber scaffolds and may provide guidance on next-generation nerve repair scaffold design.
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Affiliation(s)
- Mackenzie Lewis
- Department of Biomedical Engineering; University of Arkansas, Fayetteville, AR, USA
| | - Gabriel David
- Department of Biomedical Engineering; University of Arkansas, Fayetteville, AR, USA
| | - Danielle Jacobs
- Department of Biomedical Engineering; University of Arkansas, Fayetteville, AR, USA
| | - Patrick Kuczwara
- Department of Biomedical Engineering; University of Arkansas, Fayetteville, AR, USA
- Department of Biological & Agricultural Engineering; University of Arkansas, Fayetteville, AR, USA
| | - Alan E. Woessner
- Department of Biomedical Engineering; University of Arkansas, Fayetteville, AR, USA
| | - Jin-Woo Kim
- Department of Biological & Agricultural Engineering; University of Arkansas, Fayetteville, AR, USA
- Materials Science & Engineering Program; University of Arkansas, Fayetteville, AR, USA
| | - Kyle P. Quinn
- Department of Biomedical Engineering; University of Arkansas, Fayetteville, AR, USA
| | - Younghye Song
- Department of Biomedical Engineering; University of Arkansas, Fayetteville, AR, USA
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7
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Joshi IM, Mansouri M, Ahmed A, Simon RA, Bambizi PE, Desa DE, Elias TM, Brown EB, Abhyankar VV. Microengineering 3D Collagen Matrices with Tumor-Mimetic Gradients in Fiber Alignment. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.07.09.548253. [PMID: 37502844 PMCID: PMC10369918 DOI: 10.1101/2023.07.09.548253] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/29/2023]
Abstract
In the tumor microenvironment (TME), collagen fibers facilitate tumor cell migration through the extracellular matrix. Previous studies have focused on studying the responses of cells on uniformly aligned or randomly aligned collagen fibers. However, the in vivo environment also features spatial gradients in alignment, which arise from the local reorganization of the matrix architecture due to cell-induced traction forces. Although there has been extensive research on how cells respond to graded biophysical cues, such as stiffness, porosity, and ligand density, the cellular responses to physiological fiber alignment gradients have been largely unexplored. This is due, in part, to a lack of robust experimental techniques to create controlled alignment gradients in natural materials. In this study, we image tumor biopsy samples and characterize the alignment gradients present in the TME. To replicate physiological gradients, we introduce a first-of-its-kind biofabrication technique that utilizes a microfluidic channel with constricting and expanding geometry to engineer 3D collagen hydrogels with tunable fiber alignment gradients that range from sub-millimeter to millimeter length scales. Our modular approach allows easy access to the microengineered gradient gels, and we demonstrate that HUVECs migrate in response to the fiber architecture. We provide preliminary evidence suggesting that MDA-MB-231 cell aggregates, patterned onto a specific location on the alignment gradient, exhibit preferential migration towards increasing alignment. This finding suggests that alignment gradients could serve as an additional taxis cue in the ECM. Importantly, our study represents the first successful engineering of continuous gradients of fiber alignment in soft, natural materials. We anticipate that our user-friendly platform, which needs no specialized equipment, will offer new experimental capabilities to study the impact of fiber-based contact guidance on directed cell migration.
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Affiliation(s)
- Indranil M. Joshi
- Department of Biomedical Engineering, Rochester Institute of Technology, Rochester, NY
| | - Mehran Mansouri
- Department of Biomedical Engineering, Rochester Institute of Technology, Rochester, NY
| | - Adeel Ahmed
- Department of Biomedical Engineering, Rochester Institute of Technology, Rochester, NY
| | - Richard A. Simon
- Department of Biomedical Engineering, Rochester Institute of Technology, Rochester, NY
| | | | - Danielle E. Desa
- Department of Biomedical Engineering, University of Rochester, Rochester, NY
| | - Tresa M. Elias
- Department of Biomedical Engineering, University of Rochester, Rochester, NY
| | - Edward B. Brown
- Department of Biomedical Engineering, University of Rochester, Rochester, NY
| | - Vinay V. Abhyankar
- Department of Biomedical Engineering, Rochester Institute of Technology, Rochester, NY
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8
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Alfadil E, Bradke F. Moving through the crowd. Where are we at understanding physiological axon growth? Semin Cell Dev Biol 2023; 140:63-71. [PMID: 35817655 DOI: 10.1016/j.semcdb.2022.07.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Revised: 07/01/2022] [Accepted: 07/04/2022] [Indexed: 01/28/2023]
Abstract
Axon growth enables the rapid wiring of the central nervous system. Understanding this process is a prerequisite to retriggering it under pathological conditions, such as a spinal cord injury, to elicit axon regeneration. The last decades saw progress in understanding the mechanisms underlying axon growth. Most of these studies employed cultured neurons grown on flat surfaces. Only recently studies on axon growth were performed in 3D. In these studies, physiological environments exposed more complex and dynamic aspects of axon development. Here, we describe current views on axon growth and highlight gaps in our knowledge. We discuss how axons interact with the extracellular matrix during development and the role of the growth cone and its cytoskeleton within. Finally, we propose that the time is ripe to study axon growth in a more physiological setting. This will help us uncover the physiologically relevant mechanisms underlying axon growth, and how they can be reactivated to induce axon regeneration.
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Affiliation(s)
- Eissa Alfadil
- Laboratory of Axon Growth and Regeneration, Deutsches Zentrum für Neurodegenerative Erkrankungen (DZNE), Venusberg-Campus 1, Building 99, 53127, Bonn, Germany.
| | - Frank Bradke
- Laboratory of Axon Growth and Regeneration, Deutsches Zentrum für Neurodegenerative Erkrankungen (DZNE), Venusberg-Campus 1, Building 99, 53127, Bonn, Germany
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9
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Tseng YH, Ma TL, Tan DH, Su AJA, Washington KM, Wang CC, Huang YC, Wu MC, Su WF. Injectable Hydrogel Guides Neurons Growth with Specific Directionality. Int J Mol Sci 2023; 24:ijms24097952. [PMID: 37175657 PMCID: PMC10178216 DOI: 10.3390/ijms24097952] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2023] [Revised: 04/19/2023] [Accepted: 04/25/2023] [Indexed: 05/15/2023] Open
Abstract
Visual disabilities affect more than 250 million people, with 43 million suffering from irreversible blindness. The eyes are an extension of the central nervous system which cannot regenerate. Neural tissue engineering is a potential method to cure the disease. Injectability is a desirable property for tissue engineering scaffolds which can eliminate some surgical procedures and reduce possible complications and health risks. We report the development of the anisotropic structured hydrogel scaffold created by a co-injection of cellulose nanofiber (CNF) solution and co-polypeptide solution. The positively charged poly (L-lysine)-r-poly(L-glutamic acid) with 20 mol% of glutamic acid (PLLGA) is crosslinked with negatively charged CNF while promoting cellular activity from the acid nerve stimulate. We found that CNF easily aligns under shear forces from injection and is able to form hydrogel with an ordered structure. Hydrogel is mechanically strong and able to support, guide, and stimulate neurite growth. The anisotropy of our hydrogel was quantitatively determined in situ by 2D optical microscopy and 3D X-ray tomography. The effects of PLLGA:CNF blend ratios on cell viability, neurite growth, and neuronal signaling are systematically investigated in this study. We determined the optimal blend composition for stimulating directional neurite growth yielded a 16% increase in length compared with control, reaching anisotropy of 30.30% at 10°/57.58% at 30°. Using measurements of calcium signaling in vitro, we found a 2.45-fold increase vs. control. Based on our results, we conclude this novel material and unique injection method has a high potential for application in neural tissue engineering.
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Affiliation(s)
- Yun-Hsiu Tseng
- Department of Materials Science and Engineering, National Taiwan University, Taipei 10617, Taiwan
| | - Tien-Li Ma
- Department of Materials Science and Engineering, National Taiwan University, Taipei 10617, Taiwan
| | - Dun-Heng Tan
- Department of Materials Science and Engineering, National Taiwan University, Taipei 10617, Taiwan
| | - An-Jey A Su
- Department of Surgery, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA
| | - Kia M Washington
- Department of Surgery, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA
| | - Chun-Chieh Wang
- National Synchrotron Radiation Research Center, Hsinchu 30076, Taiwan
| | - Yu-Ching Huang
- Department of Materials Engineering, Ming Chi University of Technology, New Taipei 24301, Taiwan
| | - Ming-Chung Wu
- Department of Chemical and Materials Engineering, Chang Gung University, Taoyuan 33302, Taiwan
- Center for Green Technology, Chang Gung University, Taoyuan 33302, Taiwan
- Division of Neonatology, Department of Pediatrics, Chang Gung Memorial Hospital at Linkou, Taoyuan 33305, Taiwan
| | - Wei-Fang Su
- Department of Materials Science and Engineering, National Taiwan University, Taipei 10617, Taiwan
- Department of Materials Engineering, Ming Chi University of Technology, New Taipei 24301, Taiwan
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10
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Nanocomposite Hydrogels as Functional Extracellular Matrices. Gels 2023; 9:gels9020153. [PMID: 36826323 PMCID: PMC9957407 DOI: 10.3390/gels9020153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2022] [Revised: 01/31/2023] [Accepted: 02/08/2023] [Indexed: 02/16/2023] Open
Abstract
Over recent years, nano-engineered materials have become an important component of artificial extracellular matrices. On one hand, these materials enable static enhancement of the bulk properties of cell scaffolds, for instance, they can alter mechanical properties or electrical conductivity, in order to better mimic the in vivo cell environment. Yet, many nanomaterials also exhibit dynamic, remotely tunable optical, electrical, magnetic, or acoustic properties, and therefore, can be used to non-invasively deliver localized, dynamic stimuli to cells cultured in artificial ECMs in three dimensions. Vice versa, the same, functional nanomaterials, can also report changing environmental conditions-whether or not, as a result of a dynamically applied stimulus-and as such provide means for wireless, long-term monitoring of the cell status inside the culture. In this review article, we present an overview of the technological advances regarding the incorporation of functional nanomaterials in artificial extracellular matrices, highlighting both passive and dynamically tunable nano-engineered components.
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11
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Solbu AA, Caballero D, Damigos S, Kundu SC, Reis RL, Halaas Ø, Chahal AS, Strand BL. Assessing cell migration in hydrogels: An overview of relevant materials and methods. Mater Today Bio 2023; 18:100537. [PMID: 36659998 PMCID: PMC9842866 DOI: 10.1016/j.mtbio.2022.100537] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 12/05/2022] [Accepted: 12/28/2022] [Indexed: 12/29/2022] Open
Abstract
Cell migration is essential in numerous living processes, including embryonic development, wound healing, immune responses, and cancer metastasis. From individual cells to collectively migrating epithelial sheets, the locomotion of cells is tightly regulated by multiple structural, chemical, and biological factors. However, the high complexity of this process limits the understanding of the influence of each factor. Recent advances in materials science, tissue engineering, and microtechnology have expanded the toolbox and allowed the development of biomimetic in vitro assays to investigate the mechanisms of cell migration. Particularly, three-dimensional (3D) hydrogels have demonstrated a superior ability to mimic the extracellular environment. They are therefore well suited to studying cell migration in a physiologically relevant and more straightforward manner than in vivo approaches. A myriad of synthetic and naturally derived hydrogels with heterogeneous characteristics and functional properties have been reported. The extensive portfolio of available hydrogels with different mechanical and biological properties can trigger distinct biological responses in cells affecting their locomotion dynamics in 3D. Herein, we describe the most relevant hydrogels and their associated physico-chemical characteristics typically employed to study cell migration, including established cell migration assays and tracking methods. We aim to give the reader insight into existing literature and practical details necessary for performing cell migration studies in 3D environments.
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Affiliation(s)
- Anita Akbarzadeh Solbu
- Department of Biotechnology and Food Sciences, NOBIPOL, NTNU- Norwegian University of Science and Technology, Trondheim, Norway
| | - David Caballero
- 3B's Research Group, I3Bs – Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, 4805-017, Barco, Guimarães, Portugal
- ICVS/3B's – PT Government Associate Laboratory, 4805-017, Braga/Guimarães, Portugal
| | - Spyridon Damigos
- Department of Biotechnology and Food Sciences, NOBIPOL, NTNU- Norwegian University of Science and Technology, Trondheim, Norway
| | - Subhas C. Kundu
- 3B's Research Group, I3Bs – Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, 4805-017, Barco, Guimarães, Portugal
- ICVS/3B's – PT Government Associate Laboratory, 4805-017, Braga/Guimarães, Portugal
| | - Rui L. Reis
- 3B's Research Group, I3Bs – Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, 4805-017, Barco, Guimarães, Portugal
- ICVS/3B's – PT Government Associate Laboratory, 4805-017, Braga/Guimarães, Portugal
| | - Øyvind Halaas
- Department of Clinical and Molecular Medicine, NTNU- Norwegian University of Science and Technology, Trondheim, Norway
| | - Aman S. Chahal
- Department of Biotechnology and Food Sciences, NOBIPOL, NTNU- Norwegian University of Science and Technology, Trondheim, Norway
- Department of Clinical and Molecular Medicine, NTNU- Norwegian University of Science and Technology, Trondheim, Norway
- Department of Biotechnology and Nanomedicine, SINTEF Industry, Trondheim, Norway
| | - Berit L. Strand
- Department of Biotechnology and Food Sciences, NOBIPOL, NTNU- Norwegian University of Science and Technology, Trondheim, Norway
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12
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Kolel A, Ergaz B, Goren S, Tchaicheeyan O, Lesman A. Strain Gradient Programming in 3D Fibrous Hydrogels to Direct Graded Cell Alignment. SMALL METHODS 2023; 7:e2201070. [PMID: 36408763 DOI: 10.1002/smtd.202201070] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Indexed: 06/16/2023]
Abstract
Biological tissues experience various stretch gradients which act as mechanical signaling from the extracellular environment to cells. These mechanical stimuli are sensed by cells, triggering essential signaling cascades regulating cell migration, differentiation, and tissue remodeling. In most previous studies, a simple, uniform stretch to 2D elastic substrates has been applied to analyze the response of living cells. However, induction of nonuniform strains in controlled gradients, particularly in biomimetic 3D hydrogels, has proven challenging. In this study, 3D fibrin hydrogels of manipulated geometry are stretched by a silicone carrier to impose programmable strain gradients along different chosen axes. The resulting strain gradients are analyzed and compared to finite element simulations. Experimentally, the programmed strain gradients result in similar gradient patterns in fiber alignment within the gels. Additionally, temporal changes in the orientation of fibroblast cells embedded in the stretched fibrin gels correlate to the strain and fiber alignment gradients. The experimental and simulation data demonstrate the ability to custom-design mechanical gradients in 3D biological hydrogels and to control cell alignment patterns. It provides a new technology for mechanobiology and tissue engineering studies.
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Affiliation(s)
- Avraham Kolel
- Department of Biomedical Engineering, Faculty of Engineering, Tel-Aviv University, Tel-Aviv, 69978, Israel
| | - Bar Ergaz
- Department of Biomedical Engineering, Faculty of Engineering, Tel-Aviv University, Tel-Aviv, 69978, Israel
| | - Shahar Goren
- School of Chemistry, Raymond & Beverly Sackler Faculty of Exact Sciences, Tel-Aviv University, Tel-Aviv, 69978, Israel
| | - Oren Tchaicheeyan
- School of Mechanical Engineering, Faculty of Engineering, Tel-Aviv University, Tel-Aviv, 69978, Israel
| | - Ayelet Lesman
- School of Mechanical Engineering, Faculty of Engineering, Tel-Aviv University, Tel-Aviv, 69978, Israel
- Center for Physics and Chemistry of Living Systems, Tel Aviv University, Tel-Aviv, 69978, Israel
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13
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Dedroog LM, Deschaume O, Abrego CJG, Koos E, de Coene Y, Vananroye A, Thielemans W, Bartic C, Lettinga MP. Stress-controlled shear flow alignment of collagen type I hydrogel systems. Acta Biomater 2022; 150:128-137. [PMID: 35842033 DOI: 10.1016/j.actbio.2022.07.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Revised: 06/30/2022] [Accepted: 07/05/2022] [Indexed: 11/17/2022]
Abstract
Disease research and drug screening platforms require in vitro model systems with cellular cues resembling those of natural tissues. Fibrillar alignment, occurring naturally in extracellular matrices, is one of the crucial attributes in tissue development. Obtaining fiber alignment in 3D, in vitro remains an important challenge due to non-linear material characteristics. Here, we report a cell-compatible, shear stress-based method allowing to obtain 3D homogeneously aligned fibrillar collagen hydrogels. Controlling the shear-stress during gelation results in low strain rates, with negligible effects on the viability of embedded SH-SY5Y cells. Our approach offers reproducibility and tunability through a paradigm shift: The shear-stress initiation moment, being the critical optimization parameter in the process, is related to the modulus of the developing gel, whereas state of the art methods often rely on a predefined time to initiate the alignment procedure. After curing, the induced 3D alignment is maintained after the release of stress, with a linear relation between the total acquired strain and the fiber alignment. This method is generally applicable to 3D fibrillar materials and stress/pressure-controlled setups, making it a valuable addition to the fast-growing field of tissue engineering. STATEMENT OF SIGNIFICANCE: Controlling fiber alignment in vitro 3D hydrogels is crucial for developing physiologically relevant model systems. However, it remains challenging due to the non-linear material characteristics of fibrillar hydrogels, limiting the scalability and repeatability. Our approach tackles these challenges by utilizing a stress-controlled rheometer allowing us to monitor structural changes in situ and determine the optimal moment for applying a shear-stress inducing alignment. By careful parameter control, we infer the relationship between time, induced strain, alignment and biocompatibility. This tunable and reproducible method is both scalable and generally applicable to any fibrillar hydrogel, therefore, we believe it is useful for research investigating the link between matrix anisotropy and cell behavior in 3D systems, organ-on-chip technologies and drug research.
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Affiliation(s)
- Lens M Dedroog
- Soft Matter Physics and Biophysics Unit, Department of Physics and Astronomy, KU Leuven, 3001 Leuven, Belgium
| | - Olivier Deschaume
- Soft Matter Physics and Biophysics Unit, Department of Physics and Astronomy, KU Leuven, 3001 Leuven, Belgium
| | - Christian J Garcia Abrego
- Soft Matter Physics and Biophysics Unit, Department of Physics and Astronomy, KU Leuven, 3001 Leuven, Belgium
| | - Erin Koos
- Soft Matter, Rheology and Technology, Department of Chemical Engineering, KU Leuven, 3001 Leuven, Belgium
| | - Yovan de Coene
- Molecular Imaging and Photonics Unit, Department of Chemistry, KU Leuven, 3001 Leuven, Belgium
| | - Anja Vananroye
- Soft Matter, Rheology and Technology, Department of Chemical Engineering, KU Leuven, 3001 Leuven, Belgium
| | - Wim Thielemans
- Sustainable Materials Lab Research Group, Department of Chemical Engineering, KU Leuven, Campus Kulak Kortrijk, 8500 Kortrijk, Belgium
| | - Carmen Bartic
- Soft Matter Physics and Biophysics Unit, Department of Physics and Astronomy, KU Leuven, 3001 Leuven, Belgium
| | - Minne P Lettinga
- Soft Matter Physics and Biophysics Unit, Department of Physics and Astronomy, KU Leuven, 3001 Leuven, Belgium; Biological Information Processing IB-4, Forschungszentrum Jülich, 52425 Jülich, Germany.
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14
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Bioactive injectable hydrogels for on demand molecule/cell delivery and for tissue regeneration in the central nervous system. Acta Biomater 2022; 140:88-101. [PMID: 34852302 DOI: 10.1016/j.actbio.2021.11.038] [Citation(s) in RCA: 37] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Revised: 11/21/2021] [Accepted: 11/23/2021] [Indexed: 12/21/2022]
Abstract
Currently there are no potential curative therapies that can improve the central nervous system (CNS) regeneration after traumatic injuries or diseases. Indeed, the regeneration of CNS is greatly impaired by limited drug penetration across the blood brain barrier (BBB), poor drug targeting, deficient progenitor neural cells and limited proliferation of mature neural cells. To overcome these limitations, bioengineered injectable hydrogels in combination with drug and cell therapy have been proposed to mimic the complexity of the CNS microenvironment and architecture. Additionally, to enhance relevant CNS regeneration, proper biophysical and biochemical cues are needed. Recently, great efforts have been devoted to tailor stimuli-responsive hydrogels as novel carrier systems which are able to guide neural tissue regeneration. This review provides an extensive overview on the most promising injectable hydrogels for neural tissue engineering. A special emphasis is made to highlight the ability of these hydrogels to deliver bioactive compounds/cells upon the exposure to internal and external stimuli. Bioactive injectable hydrogels have a broad application in central nervous system's (CNS) regeneration. This review gives an overview of the latest pioneering approaches in CNS recovery using stimuli-responsive hydrogels for several neurodegenerative disorders. STATEMENT OF SIGNIFICANCE: This review summarizes the latest innovations on bioactive injectable hydrogels, focusing on tailoring internal/external stimuli-responsive hydrogels for the new injectable systems design, able to guide neural tissue response. The purpose is to highlight the advantages and the limitations of thermo-responsive, photo responsive, magnetic responsive, electric responsive, ultrasound responsive and enzymes-triggered injectable hydrogels in developing customizable neurotherapies. We believe that this comprehensive review will help in identifying the strengths and gaps in the existing literature and to further support the use of injectable hydrogels in stimulating CNS regeneration.
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15
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Xu W, Jambhulkar S, Ravichandran D, Zhu Y, Kakarla M, Nian Q, Azeredo B, Chen X, Jin K, Vernon B, Lott DG, Cornella JL, Shefi O, Miquelard-Garnier G, Yang Y, Song K. 3D Printing-Enabled Nanoparticle Alignment: A Review of Mechanisms and Applications. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2021; 17:e2100817. [PMID: 34176201 DOI: 10.1002/smll.202100817] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Revised: 04/05/2021] [Indexed: 05/12/2023]
Abstract
3D printing (additive manufacturing (AM)) has enormous potential for rapid tooling and mass production due to its design flexibility and significant reduction of the timeline from design to manufacturing. The current state-of-the-art in 3D printing focuses on material manufacturability and engineering applications. However, there still exists the bottleneck of low printing resolution and processing rates, especially when nanomaterials need tailorable orders at different scales. An interesting phenomenon is the preferential alignment of nanoparticles that enhance material properties. Therefore, this review emphasizes the landscape of nanoparticle alignment in the context of 3D printing. Herein, a brief overview of 3D printing is provided, followed by a comprehensive summary of the 3D printing-enabled nanoparticle alignment in well-established and in-house customized 3D printing mechanisms that can lead to selective deposition and preferential orientation of nanoparticles. Subsequently, it is listed that typical applications that utilized the properties of ordered nanoparticles (e.g., structural composites, heat conductors, chemo-resistive sensors, engineered surfaces, tissue scaffolds, and actuators based on structural and functional property improvement). This review's emphasis is on the particle alignment methodology and the performance of composites incorporating aligned nanoparticles. In the end, significant limitations of current 3D printing techniques are identified together with future perspectives.
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Affiliation(s)
- Weiheng Xu
- The Polytechnic School (TPS), Ira A. Fulton Schools for Engineering, Arizona State University, 6075 S. Innovation Way West, Mesa, AZ, 85212, USA
| | - Sayli Jambhulkar
- The Polytechnic School (TPS), Ira A. Fulton Schools for Engineering, Arizona State University, 6075 S. Innovation Way West, Mesa, AZ, 85212, USA
| | - Dharneedar Ravichandran
- The Polytechnic School (TPS), Ira A. Fulton Schools for Engineering, Arizona State University, 6075 S. Innovation Way West, Mesa, AZ, 85212, USA
| | - Yuxiang Zhu
- The Polytechnic School (TPS), Ira A. Fulton Schools for Engineering, Arizona State University, 6075 S. Innovation Way West, Mesa, AZ, 85212, USA
| | - Mounika Kakarla
- Department of Materials Science and Engineering, Ira A. Fulton Schools for Engineering, Arizona State University, Tempe, 501 E. Tyler Mall, Tempe, AZ, 85287, USA
| | - Qiong Nian
- Department of Mechanical Engineering, and Multi-Scale Manufacturing Material Processing Lab (MMMPL), Ira A. Fulton Schools for Engineering, Arizona State University, 501 E. Tyler Mall, Tempe, AZ, 85287, USA
| | - Bruno Azeredo
- The Polytechnic School (TPS), Ira A. Fulton Schools for Engineering, Arizona State University, 6075 S. Innovation Way West, Mesa, AZ, 85212, USA
| | - Xiangfan Chen
- Advanced Manufacturing and Functional Devices (AMFD) Laboratory, Ira A. Fulton Schools for Engineering, Arizona State University, 6075 Innovation Way W., Mesa, AZ, 85212, USA
| | - Kailong Jin
- Department of Chemical Engineering, School for Engineering Matter, Transport and Energy (SEMTE), and Biodesign Institute Center for Sustainable Macromolecular Materials and Manufacturing (BCSM3), Arizona State University, 501 E. Tyler St., Tempe, AZ, 85287, USA
| | - Brent Vernon
- Department of Biomedical Engineering, Biomaterials Lab, School of Biological and Health Systems Engineering, Arizona State University, 427 E Tyler Mall, Tempe, AZ, 85281, USA
| | - David G Lott
- Department Otolaryngology, Division of Laryngology, College of Medicine, and Mayo Clinic Arizona Center for Regenerative Medicine, 13400 E Shea Blvd, Scottsdale, AZ, 85259, USA
| | - Jeffrey L Cornella
- Professor of Obstetrics and Gynecology, Mayo Clinic College of Medicine, Division of Gynecologic Surgery, Mayo Clinic, 13400 E Shea Blvd, Scottsdale, AZ, 85259, USA
| | - Orit Shefi
- Department of Engineering, Neuro-Engineering and Regeneration Laboratory, Bar Ilan Institute of Nanotechnologies and Advanced Materials, Bar-Ilan University, Building 1105, Ramat Gan, 52900, Israel
| | - Guillaume Miquelard-Garnier
- laboratoire PIMM, UMR 8006, Arts et Métiers Institute of Technology, CNRS, CNAM, Hesam University, 151 boulevard de l'Hôpital, Paris, 75013, France
| | - Yang Yang
- Additive Manufacturing & Advanced Materials Lab, Department of Mechanical Engineering, San Diego State University, 5500 Campanile Drive, San Diego, CA, 92182-1323, USA
| | - Kenan Song
- Department of Manufacturing Engineering, Advanced Materials Advanced Manufacturing Laboratory (AMAML), Ira A. Fulton Schools for Engineering, Arizona State University, 6075 Innovation Way W., Mesa, AZ, 85212, USA
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16
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Xu Q, Torres JE, Hakim M, Babiak PM, Pal P, Battistoni CM, Nguyen M, Panitch A, Solorio L, Liu JC. Collagen- and hyaluronic acid-based hydrogels and their biomedical applications. MATERIALS SCIENCE & ENGINEERING. R, REPORTS : A REVIEW JOURNAL 2021; 146:100641. [PMID: 34483486 PMCID: PMC8409465 DOI: 10.1016/j.mser.2021.100641] [Citation(s) in RCA: 86] [Impact Index Per Article: 28.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
Hydrogels have been widely investigated in biomedical fields due to their similar physical and biochemical properties to the extracellular matrix (ECM). Collagen and hyaluronic acid (HA) are the main components of the ECM in many tissues. As a result, hydrogels prepared from collagen and HA hold inherent advantages in mimicking the structure and function of the native ECM. Numerous studies have focused on the development of collagen and HA hydrogels and their biomedical applications. In this extensive review, we provide a summary and analysis of the sources, features, and modifications of collagen and HA. Specifically, we highlight the fabrication, properties, and potential biomedical applications as well as promising commercialization of hydrogels based on these two natural polymers.
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Affiliation(s)
- Qinghua Xu
- Davidson School of Chemical Engineering, Purdue University, West Lafayette, Indiana 47907, United States
| | - Jessica E. Torres
- Davidson School of Chemical Engineering, Purdue University, West Lafayette, Indiana 47907, United States
| | - Mazin Hakim
- Weldon School of Biomedical Engineering, Purdue University, West Lafayette, Indiana 47907, USA
| | - Paulina M Babiak
- Davidson School of Chemical Engineering, Purdue University, West Lafayette, Indiana 47907, United States
| | - Pallabi Pal
- Davidson School of Chemical Engineering, Purdue University, West Lafayette, Indiana 47907, United States
| | - Carly M Battistoni
- Davidson School of Chemical Engineering, Purdue University, West Lafayette, Indiana 47907, United States
| | - Michael Nguyen
- Department of Biomedical Engineering, University of California Davis, Davis, California 95616, United States
| | - Alyssa Panitch
- Department of Biomedical Engineering, University of California Davis, Davis, California 95616, United States
| | - Luis Solorio
- Weldon School of Biomedical Engineering, Purdue University, West Lafayette, Indiana 47907, USA
| | - Julie C. Liu
- Davidson School of Chemical Engineering, Purdue University, West Lafayette, Indiana 47907, United States
- Weldon School of Biomedical Engineering, Purdue University, West Lafayette, Indiana 47907, USA
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17
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Employing Extracellular Matrix-Based Tissue Engineering Strategies for Age-Dependent Tissue Degenerations. Int J Mol Sci 2021; 22:ijms22179367. [PMID: 34502277 PMCID: PMC8431718 DOI: 10.3390/ijms22179367] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 08/25/2021] [Accepted: 08/26/2021] [Indexed: 01/10/2023] Open
Abstract
Tissues and organs are not composed of solely cellular components; instead, they converge with an extracellular matrix (ECM). The composition and function of the ECM differ depending on tissue types. The ECM provides a microenvironment that is essential for cellular functionality and regulation. However, during aging, the ECM undergoes significant changes along with the cellular components. The ECM constituents are over- or down-expressed, degraded, and deformed in senescence cells. ECM aging contributes to tissue dysfunction and failure of stem cell maintenance. Aging is the primary risk factor for prevalent diseases, and ECM aging is directly or indirectly correlated to it. Hence, rejuvenation strategies are necessitated to treat various age-associated symptoms. Recent rejuvenation strategies focus on the ECM as the basic biomaterial for regenerative therapies, such as tissue engineering. Modified and decellularized ECMs can be used to substitute aged ECMs and cell niches for culturing engineered tissues. Various tissue engineering approaches, including three-dimensional bioprinting, enable cell delivery and the fabrication of transplantable engineered tissues by employing ECM-based biomaterials.
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18
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Kapr J, Petersilie L, Distler T, Lauria I, Bendt F, Sauter CM, Boccaccini AR, Rose CR, Fritsche E. Human Induced Pluripotent Stem Cell-Derived Neural Progenitor Cells Produce Distinct Neural 3D In Vitro Models Depending on Alginate/Gellan Gum/Laminin Hydrogel Blend Properties. Adv Healthc Mater 2021; 10:e2100131. [PMID: 34197049 DOI: 10.1002/adhm.202100131] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Revised: 06/01/2021] [Indexed: 12/12/2022]
Abstract
Stable and predictive neural cell culture models are a necessary premise for many research fields. However, conventional 2D models lack 3D cell-material/-cell interactions and hence do not reflect the complexity of the in vivo situation properly. Here two alginate/gellan gum/laminin (ALG/GG/LAM) hydrogel blends are presented for the fabrication of human induced pluripotent stem cell (hiPSC)-based 3D neural models. For hydrogel embedding, hiPSC-derived neural progenitor cells (hiNPCs) are used either directly or after 3D neural pre-differentiation. It is shown that stiffness and stress relaxation of the gel blends, as well as the cell differentiation strategy influence 3D model development. The embedded hiNPCs differentiate into neurons and astrocytes within the gel blends and display spontaneous intracellular calcium signals. Two fit-for-purpose models valuable for i) applications requiring a high degree of complexity, but less throughput, such as disease modeling and long-term exposure studies and ii) higher throughput applications, such as acute exposures or substance screenings are proposed. Due to their wide range of applications, adjustability, and printing capabilities, the ALG/GG/LAM based 3D neural models are of great potential for 3D neural modeling in the future.
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Affiliation(s)
- Julia Kapr
- IUF – Leibniz Research Institute for Environmental Medicine Düsseldorf 40225 Germany
| | - Laura Petersilie
- Institute of Neurobiology Heinrich Heine University Düsseldorf 40225 Germany
| | - Thomas Distler
- Institute of Biomaterials Department of Materials Science and Engineering Friedrich‐Alexander‐University Erlangen‐Nuremberg Erlangen 91054 Germany
| | - Ines Lauria
- IUF – Leibniz Research Institute for Environmental Medicine Düsseldorf 40225 Germany
| | - Farina Bendt
- IUF – Leibniz Research Institute for Environmental Medicine Düsseldorf 40225 Germany
| | - Clemens M. Sauter
- IUF – Leibniz Research Institute for Environmental Medicine Düsseldorf 40225 Germany
| | - Aldo R. Boccaccini
- Institute of Biomaterials Department of Materials Science and Engineering Friedrich‐Alexander‐University Erlangen‐Nuremberg Erlangen 91054 Germany
| | - Christine R. Rose
- Institute of Neurobiology Heinrich Heine University Düsseldorf 40225 Germany
| | - Ellen Fritsche
- IUF – Leibniz Research Institute for Environmental Medicine Düsseldorf 40225 Germany
- Medical Faculty Heinrich Heine University Düsseldorf 40225 Germany
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19
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Gordián-Vélez WJ, Chouhan D, España RA, Chen HI, Burdick JA, Duda JE, Cullen DK. Restoring lost nigrostriatal fibers in Parkinson's disease based on clinically-inspired design criteria. Brain Res Bull 2021; 175:168-185. [PMID: 34332016 DOI: 10.1016/j.brainresbull.2021.07.016] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2021] [Revised: 07/13/2021] [Accepted: 07/20/2021] [Indexed: 12/13/2022]
Abstract
Parkinson's disease is a neurodegenerative disease affecting around 10 million people worldwide. The death of dopaminergic neurons in the substantia nigra and the axonal fibers that constitute the nigrostriatal pathway leads to a loss of dopamine in the striatum that causes the motor symptoms of this disease. Traditional treatments have focused on reducing symptoms, while therapies with human fetal or stem cell-derived neurons have centered on implanting these cells in the striatum to restore its innervation. An alternative approach is pathway reconstruction, which aims to rebuild the entire structure of neurons and axonal fibers of the nigrostriatal pathway in a way that matches its anatomy and physiology. This type of repair could be more capable of reestablishing the signaling mechanisms that ensure proper dopamine release in the striatum and regulation of other motor circuit regions in the brain. In this manuscript, we conduct a review of the literature related to pathway reconstruction as a treatment for Parkinson's disease, delve into the limitations of these studies, and propose the requisite design criteria to achieve this goal at a human scale. We then present our tissue engineering-based platform to fabricate hydrogel-encased dopaminergic axon tracts in vitro for later implantation into the brain to replace and reconstruct the pathway. These tissue-engineered nigrostriatal pathways (TE-NSPs) can be characterized and optimized for cell number and phenotype, axon growth lengths and rates, and the capacity for synaptic connectivity and dopamine release. We then show original data of advances in creating these constructs matching clinical design criteria using human iPSC-derived dopaminergic neurons and a hyaluronic acid hydrogel. We conclude with a discussion of future steps that are needed to further optimize human-scale TE-NSPs and translate them into clinical products.
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Affiliation(s)
- Wisberty J Gordián-Vélez
- Department of Bioengineering, School of Engineering and Applied Science, University of Pennsylvania, Philadelphia, PA, United States; Center for Brain Injury & Repair, Department of Neurosurgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States; Center for Neurotrauma, Neurodegeneration & Restoration, Corporal Michael Crescenz Veterans Affairs Medical Center, Philadelphia, PA, United States
| | - Dimple Chouhan
- Center for Brain Injury & Repair, Department of Neurosurgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States; Center for Neurotrauma, Neurodegeneration & Restoration, Corporal Michael Crescenz Veterans Affairs Medical Center, Philadelphia, PA, United States
| | - Rodrigo A España
- Department of Neurobiology & Anatomy, College of Medicine, Drexel University, Philadelphia, PA, United States
| | - H Isaac Chen
- Center for Brain Injury & Repair, Department of Neurosurgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States; Center for Neurotrauma, Neurodegeneration & Restoration, Corporal Michael Crescenz Veterans Affairs Medical Center, Philadelphia, PA, United States
| | - Jason A Burdick
- Department of Bioengineering, School of Engineering and Applied Science, University of Pennsylvania, Philadelphia, PA, United States
| | - John E Duda
- Department of Neurology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States; Center for Neurotrauma, Neurodegeneration & Restoration, Corporal Michael Crescenz Veterans Affairs Medical Center, Philadelphia, PA, United States
| | - D Kacy Cullen
- Department of Bioengineering, School of Engineering and Applied Science, University of Pennsylvania, Philadelphia, PA, United States; Center for Brain Injury & Repair, Department of Neurosurgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States; Center for Neurotrauma, Neurodegeneration & Restoration, Corporal Michael Crescenz Veterans Affairs Medical Center, Philadelphia, PA, United States.
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20
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Shahidi S, Janmaleki M, Riaz S, Sanati Nezhad A, Syed N. A tuned gelatin methacryloyl (GelMA) hydrogel facilitates myelination of dorsal root ganglia neurons in vitro. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 126:112131. [PMID: 34082948 DOI: 10.1016/j.msec.2021.112131] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Revised: 04/18/2021] [Accepted: 04/19/2021] [Indexed: 12/12/2022]
Abstract
Investigating axonal myelination by Schwann cells (SCs) is crucial for understanding mechanisms underlying demyelination and remyelination, which may help gain insights into incurable disorders like neurodegenerative diseases. In this study, a gelatin-based hydrogel, gelatin methacryloyl (GelMA), was optimized to achieve the biocompatibility, porosity, mechanical stability, and degradability needed to provide high cell viability for dorsal root ganglia (DRG) neurons and SCs, and to enable their long-term coculture needed for myelination studies. The results of cell viability, neurite elongation, SC function and maturation, SC-axon interaction, and myelination were compared with two other commonly used substrates, namely collagen and Poly-d Lysine (PDL). The tuned GelMA constructs (Young's modulus of 32.6 ± 1.9 kPa and the median value of pore size of 10.3 μm) enhanced single axon generation (unlike collagen) and promoted the interaction of DRG neurons and SCs (unlike PDL). While DRG cells exhibited relatively higher viability on PDL after 48 h, i.e., 83.8%, the cells had similar survival rate on GelMA and collagen substrates, 66.7% and 61.5%, respectively. Further adjusting the hydrogel properties to achieve two distinct ranges of relatively small and large pores supported SCs to extend their processes freely and enabled physical contact with and wrapping around their corresponding axons. Staining the cells with myelin basic protein (MBA) and myelin-associated glycoprotein (MAG) revealed enhanced myelination on GelMA hydrogel compared to PDL and collagen. Moreover, the engineered porosity enhanced DRGs and SCs attachments and flexibility of movement across the substrate. This engineered hydrogel structure can now be further explored to model demyelination in neurodegenerative diseases, as well as to study the effects of various compounds on myelin regeneration.
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Affiliation(s)
- Sahar Shahidi
- Hotchkiss Brain Institute and Alberta Children's Hospital Research Institute, University of Calgary, Calgary, Alberta T2N 1N4, Canada
| | - Mohsen Janmaleki
- BioMEMS and Bioinspired Microfluidic Laboratory, Biomedical Engineering Graduate Program, University of Calgary, Calgary, T2N 1N4, Alberta, Canada; Center for BioEngineering Research and Education, University of Calgary, Calgary, T2N 1N4, Alberta, Canada
| | - Saba Riaz
- Hotchkiss Brain Institute and Alberta Children's Hospital Research Institute, University of Calgary, Calgary, Alberta T2N 1N4, Canada
| | - Amir Sanati Nezhad
- BioMEMS and Bioinspired Microfluidic Laboratory, Biomedical Engineering Graduate Program, University of Calgary, Calgary, T2N 1N4, Alberta, Canada; Center for BioEngineering Research and Education, University of Calgary, Calgary, T2N 1N4, Alberta, Canada.
| | - Naweed Syed
- Hotchkiss Brain Institute and Alberta Children's Hospital Research Institute, University of Calgary, Calgary, Alberta T2N 1N4, Canada.
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21
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Shi N, Li Y, Chang L, Zhao G, Jin G, Lyu Y, Genin GM, Ma Y, Xu F. A 3D, Magnetically Actuated, Aligned Collagen Fiber Hydrogel Platform Recapitulates Physical Microenvironment of Myoblasts for Enhancing Myogenesis. SMALL METHODS 2021; 5:e2100276. [PMID: 34927916 DOI: 10.1002/smtd.202100276] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Revised: 04/23/2021] [Indexed: 06/14/2023]
Abstract
Many cell responses that underlie the development, maturation, and function of tissues are guided by the architecture and mechanical loading of the extracellular matrix (ECM). Because mechanical stimulation must be transmitted through the ECM architecture, the synergy between these two factors is important. However, recapitulating the synergy of these physical microenvironmental cues in vitro remains challenging. To address this, a 3D magnetically actuated collagen hydrogel platform is developed that enables combined control of ECM architecture and mechanical stimulation. With this platform, it is demonstrated how these factors synergistically promote cell alignment of C2C12 myoblasts and enhance myogenesis. This promotion is driven in part by the dynamics of Yes-associated protein and structure of cellular microtubule networks. This facile platform holds great promises for regulating cell behavior and fate, generating a broad range of engineered physiologically representative microtissues in vitro, and quantifying the mechanobiology underlying their functions.
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Affiliation(s)
- Nianyuan Shi
- Bioinspired Engineering and Biomechanics Center (BEBC), The Key Laboratory of Biomedical Information Engineering of Ministry of Education, Xi'an Jiaotong University, Xi'an, 710049, China
| | - Yuhui Li
- Bioinspired Engineering and Biomechanics Center (BEBC), The Key Laboratory of Biomedical Information Engineering of Ministry of Education, Xi'an Jiaotong University, Xi'an, 710049, China
| | - Le Chang
- Bioinspired Engineering and Biomechanics Center (BEBC), The Key Laboratory of Biomedical Information Engineering of Ministry of Education, Xi'an Jiaotong University, Xi'an, 710049, China
| | - Guoxu Zhao
- School of Material Science and Chemical Engineering, Xi'an Technological University, Xi'an, 710021, China
| | - Guorui Jin
- Bioinspired Engineering and Biomechanics Center (BEBC), The Key Laboratory of Biomedical Information Engineering of Ministry of Education, Xi'an Jiaotong University, Xi'an, 710049, China
| | - Yi Lyu
- Department of Hepatobiliary Surgery and Institute of Advanced Surgical Technology and Engineering, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, China
| | - Guy M Genin
- Bioinspired Engineering and Biomechanics Center (BEBC), The Key Laboratory of Biomedical Information Engineering of Ministry of Education, Xi'an Jiaotong University, Xi'an, 710049, China
- NSF Science and Technology Center for Engineering MechanoBiology, Washington University in St. Louis, St. Louis, MO, 63130, USA
| | - Yufei Ma
- Bioinspired Engineering and Biomechanics Center (BEBC), The Key Laboratory of Biomedical Information Engineering of Ministry of Education, Xi'an Jiaotong University, Xi'an, 710049, China
| | - Feng Xu
- Bioinspired Engineering and Biomechanics Center (BEBC), The Key Laboratory of Biomedical Information Engineering of Ministry of Education, Xi'an Jiaotong University, Xi'an, 710049, China
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Ahmed A, Joshi IM, Mansouri M, Ahamed NNN, Hsu MC, Gaborski TR, Abhyankar VV. Engineering fiber anisotropy within natural collagen hydrogels. Am J Physiol Cell Physiol 2021; 320:C1112-C1124. [PMID: 33852366 PMCID: PMC8285641 DOI: 10.1152/ajpcell.00036.2021] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Revised: 04/06/2021] [Accepted: 04/06/2021] [Indexed: 12/14/2022]
Abstract
It is well known that biophysical properties of the extracellular matrix (ECM), including stiffness, porosity, composition, and fiber alignment (anisotropy), play a crucial role in controlling cell behavior in vivo. Type I collagen (collagen I) is a ubiquitous structural component in the ECM and has become a popular hydrogel material that can be tuned to replicate the mechanical properties found in vivo. In this review article, we describe popular methods to create 2-D and 3-D collagen I hydrogels with anisotropic fiber architectures. We focus on methods that can be readily translated from engineering and materials science laboratories to the life-science community with the overall goal of helping to increase the physiological relevance of cell culture assays.
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Affiliation(s)
- Adeel Ahmed
- Department of Microsystems Engineering, Rochester Institute of Technology, Rochester, New York
| | - Indranil M Joshi
- Department of Biomedical Engineering, Rochester Institute of Technology, Rochester, New York
| | - Mehran Mansouri
- Department of Microsystems Engineering, Rochester Institute of Technology, Rochester, New York
| | - Nuzhet N N Ahamed
- Department of Microsystems Engineering, Rochester Institute of Technology, Rochester, New York
| | - Meng-Chun Hsu
- Department of Microsystems Engineering, Rochester Institute of Technology, Rochester, New York
| | - Thomas R Gaborski
- Department of Microsystems Engineering, Rochester Institute of Technology, Rochester, New York
- Department of Biomedical Engineering, Rochester Institute of Technology, Rochester, New York
| | - Vinay V Abhyankar
- Department of Microsystems Engineering, Rochester Institute of Technology, Rochester, New York
- Department of Biomedical Engineering, Rochester Institute of Technology, Rochester, New York
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23
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Sarrigiannidis S, Rey J, Dobre O, González-García C, Dalby M, Salmeron-Sanchez M. A tough act to follow: collagen hydrogel modifications to improve mechanical and growth factor loading capabilities. Mater Today Bio 2021; 10:100098. [PMID: 33763641 PMCID: PMC7973388 DOI: 10.1016/j.mtbio.2021.100098] [Citation(s) in RCA: 98] [Impact Index Per Article: 32.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2020] [Revised: 01/16/2021] [Accepted: 01/20/2021] [Indexed: 12/13/2022] Open
Abstract
Collagen hydrogels are among the most well-studied platforms for drug delivery and in situ tissue engineering, thanks to their low cost, low immunogenicity, versatility, biocompatibility, and similarity to the natural extracellular matrix (ECM). Despite collagen being largely responsible for the tensile properties of native connective tissues, collagen hydrogels have relatively low mechanical properties in the absence of covalent cross-linking. This is particularly problematic when attempting to regenerate stiffer and stronger native tissues such as bone. Furthermore, in contrast to hydrogels based on ECM proteins such as fibronectin, collagen hydrogels do not have any growth factor (GF)-specific binding sites and often cannot sequester physiological (small) amounts of the protein. GF binding and in situ presentation are properties that can aid significantly in the tissue regeneration process by dictating cell fate without causing adverse effects such as malignant tumorigenic tissue growth. To alleviate these issues, researchers have developed several strategies to increase the mechanical properties of collagen hydrogels using physical or chemical modifications. This can expand the applicability of collagen hydrogels to tissues subject to a continuous load. GF delivery has also been explored, mathematically and experimentally, through the development of direct loading, chemical cross-linking, electrostatic interaction, and other carrier systems. This comprehensive article explores the ways in which these parameters, mechanical properties and GF delivery, have been optimized in collagen hydrogel systems and examines their in vitro or in vivo biological effect. This article can, therefore, be a useful tool to streamline future studies in the field, by pointing researchers into the appropriate direction according to their collagen hydrogel design requirements.
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Affiliation(s)
| | | | - O. Dobre
- Centre for the Cellular Microenvironment, University of Glasgow, Glasgow G12 8LT, UK
| | - C. González-García
- Centre for the Cellular Microenvironment, University of Glasgow, Glasgow G12 8LT, UK
| | - M.J. Dalby
- Centre for the Cellular Microenvironment, University of Glasgow, Glasgow G12 8LT, UK
| | - M. Salmeron-Sanchez
- Centre for the Cellular Microenvironment, University of Glasgow, Glasgow G12 8LT, UK
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24
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Seo J, Lanara C, Choi JY, Kim J, Cho H, Chang Y, Kang K, Stratakis E, Choi IS. Neuronal Migration on Silicon Microcone Arrays with Different Pitches. Adv Healthc Mater 2021; 10:e2000583. [PMID: 32815647 DOI: 10.1002/adhm.202000583] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2020] [Revised: 06/22/2020] [Indexed: 11/10/2022]
Abstract
Neuronal migration is a complicated but fundamental process for proper construction and functioning of neural circuits in the brain. Many in vivo studies have suggested the involvement of environmental physical features of a neuron in its migration, but little effort has been made for the in vitro demonstration of topography-driven neuronal migration. This work investigates migratory behaviors of primary hippocampal neurons on a silicon microcone (SiMC) array that presents 14 different pitch domains (pitch: 2.5-7.3 µm). Neuronal migration becomes the maximum at the pitch of around 3 µm, with an upper migration threshold of about 4 µm. Immunocytochemical studies indicate that the speed and direction of migration, as well as its probability of occurrence, are correlated with the morphology of the neuron, which is dictated by the pitch and shape of underlying SiMC structures. In addition to the effects on neuronal migration, the real-time imaging of migrating neurons on the topographical substrate reveals new in vitro modes of neuronal migration, which have not been observed on the conventional flat culture plate, but been suggested by in vivo studies.
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Affiliation(s)
- Jeongyeon Seo
- Center for Cell‐Encapsulation Research Department of Chemistry KAIST Daejeon 34141 Korea
| | - Christina Lanara
- Institute of Electronic Structure and Laser Foundation for Research and Technology Hellas (FORTH) Nikolaou Plastira 100 Heraklion Crete GR‐70013 Greece
| | - Ji Yu Choi
- Center for Cell‐Encapsulation Research Department of Chemistry KAIST Daejeon 34141 Korea
| | - Jungnam Kim
- Center for Cell‐Encapsulation Research Department of Chemistry KAIST Daejeon 34141 Korea
| | - Hyeoncheol Cho
- Center for Cell‐Encapsulation Research Department of Chemistry KAIST Daejeon 34141 Korea
| | - Young‐Tae Chang
- Department of Chemistry POSTECH Center for Self‐Assembly and Complexity Institute for Basic Science (IBS) Pohang 37673 Korea
| | - Kyungtae Kang
- Department of Applied Chemistry Kyung Hee University Yongin Gyeonggi 17104 Korea
| | - Emmanuel Stratakis
- Institute of Electronic Structure and Laser Foundation for Research and Technology Hellas (FORTH) Nikolaou Plastira 100 Heraklion Crete GR‐70013 Greece
| | - Insung S. Choi
- Center for Cell‐Encapsulation Research Department of Chemistry KAIST Daejeon 34141 Korea
- Department of Bio and Brain Engineering KAIST Daejeon 34141 Korea
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25
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Walimbe T, Panitch A. Best of Both Hydrogel Worlds: Harnessing Bioactivity and Tunability by Incorporating Glycosaminoglycans in Collagen Hydrogels. Bioengineering (Basel) 2020; 7:E156. [PMID: 33276506 PMCID: PMC7711789 DOI: 10.3390/bioengineering7040156] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2020] [Revised: 11/26/2020] [Accepted: 11/30/2020] [Indexed: 01/13/2023] Open
Abstract
Collagen, the most abundant protein in mammals, has garnered the interest of scientists for over 50 years. Its ubiquitous presence in all body tissues combined with its excellent biocompatibility has led scientists to study its potential as a biomaterial for a wide variety of biomedical applications with a high degree of success and widespread clinical approval. More recently, in order to increase their tunability and applicability, collagen hydrogels have frequently been co-polymerized with other natural and synthetic polymers. Of special significance is the use of bioactive glycosaminoglycans-the carbohydrate-rich polymers of the ECM responsible for regulating tissue homeostasis and cell signaling. This review covers the recent advances in the development of collagen-based hydrogels and collagen-glycosaminoglycan blend hydrogels for biomedical research. We discuss the formulations and shortcomings of using collagen in isolation, and the advantages of incorporating glycosaminoglycans (GAGs) in the hydrogels. We further elaborate on modifications used on these biopolymers for tunability and discuss tissue specific applications. The information presented herein will demonstrate the versatility and highly translational value of using collagen blended with GAGs as hydrogels for biomedical engineering applications.
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Affiliation(s)
- Tanaya Walimbe
- Department of Biomedical Engineering, University of California, Davis, CA 95616, USA;
| | - Alyssa Panitch
- Department of Biomedical Engineering, University of California, Davis, CA 95616, USA;
- Department of Surgery, University of California Davis Health, Sacramento, CA 95817, USA
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26
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Chemla Y, Avraham ES, Markus A, Teblum E, Slotky A, Kostikov Y, Farah N, Telkhozhayeva M, Shoval I, Nessim GD, Mandel Y. Carbon nanostructures as a scaffold for human embryonic stem cell differentiation toward photoreceptor precursors. NANOSCALE 2020; 12:18918-18930. [PMID: 32910131 DOI: 10.1039/d0nr02256j] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Carbon nanomaterials have been introduced as a scaffold for various biological applications due to their unique physical and electrical properties. Here we studied carbon nanotubes (CNTs) and carbon nanofibers (CNFs) as scaffold materials for the differentiation of human embryonic stem cells (hESCs) towards photoreceptor precursor cells (PRPs). We report on their cytoxicity, their effect on cell morphology, cell-surface interface and the differentiation process. To this end, hESCs were differentiated into PRPs on carbon nanofibers (CNFs), long horizontal CNTs (LHCNTs), vertically aligned CNTs (VACNTs) or glass (control) surfaces. The differentiated cells were investigated by immunohistochemistry, fluorescence imaging and electron microscopy. Our results revealed that the investigated nanomaterials were not cytotoxic to the cells during the differentiation process. The surface interface effect on the cells was apparent, affecting cell directionality, migration and morphology. Interestingly, cell fate was not dependent on the substrate type, as inferred from the similar dynamics of the loss of pluripotency and the comparable expression levels of the photoreceptor marker Crx for all investigated substrates. These results are important for better understanding the effect of nanomaterial surface interaction with differentiating neural cells in general, and for future use of these materials as scaffolds for differentiating photoreceptors for vision restoration in particular.
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Affiliation(s)
- Yoav Chemla
- Faculty of Life Sciences, School of Optometry and Vision Science, Bar Ilan University, Ramat Gan, 5290002, Israel.
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27
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Shelah O, Wertheimer S, Haj-Ali R, Lesman A. Coral-Derived Collagen Fibers for Engineering Aligned Tissues. Tissue Eng Part A 2020; 27:187-200. [PMID: 32524890 DOI: 10.1089/ten.tea.2020.0116] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
There is a growing need for biomaterial scaffolds that support engineering of soft tissue substitutes featuring structure and mechanical properties similar to those of the native tissue. This work introduces a new biomaterial system that is based on centimeter-long collagen fibers extracted from Sarcophyton soft corals, wrapped around frames to create aligned fiber arrays. The collagen arrays displayed hyperelastic and viscoelastic mechanical properties that resembled those of collagenous-rich tissues. Cytotoxicity tests demonstrated that the collagen arrays were nontoxic to fibroblast cells. In addition, fibroblast cells seeded on the collagen arrays demonstrated spreading and increased growth for up to 40 days, and their orientation followed that of the aligned fibers. The possibility to combine the collagen cellular arrays with poly(ethylene glycol) diacrylate (PEG-DA) hydrogel, to create integrated biocomposites, was also demonstrated. This study showed that coral collagen fibers in combination with a hydrogel can support biological tissue-like growth, with predefined orientation over a long period of time in culture. As such, it is an attractive scaffold for the construction of various engineered tissues to match their native oriented morphology.
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Affiliation(s)
- Ortal Shelah
- School of Mechanical Engineering, The Fleischman Faculty of Engineering, Tel-Aviv University, Israel
| | - Shir Wertheimer
- School of Mechanical Engineering, The Fleischman Faculty of Engineering, Tel-Aviv University, Israel
| | - Rami Haj-Ali
- School of Mechanical Engineering, The Fleischman Faculty of Engineering, Tel-Aviv University, Israel
| | - Ayelet Lesman
- School of Mechanical Engineering, The Fleischman Faculty of Engineering, Tel-Aviv University, Israel
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28
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Xia L, Shang Y, Chen X, Li H, Xu X, Liu W, Yang G, Wang T, Gao X, Chai R. Oriented Neural Spheroid Formation and Differentiation of Neural Stem Cells Guided by Anisotropic Inverse Opals. Front Bioeng Biotechnol 2020; 8:848. [PMID: 32850719 PMCID: PMC7411081 DOI: 10.3389/fbioe.2020.00848] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2020] [Accepted: 07/01/2020] [Indexed: 01/04/2023] Open
Abstract
Isotropic inverse opal structures have been extensively studied for the ability to manipulate cell behaviors such as attachment, migration, and spheroid formation. However, their use in regulate the behaviors of neural stem cells has not been fully explored, besides, the isotropic inverse opal structures usually lack the ability to induce the oriented cell growth which is fundamental in neural regeneration based on neural stem cell therapy. In this paper, the anisotropic inverse opal substrates were obtained by mechanically stretching the poly (vinylidene fluoride) (PVDF) inverse opal films. The anisotropic inverse opal substrates possessed good biocompatibility, optical properties and anisotropy, provided well guidance for the formation of neural spheroids, the alignment of neural stem cells, the differentiation of neural stem cells, the oriented growth of derived neurons and the dendritic complexity of the newborn neurons. Thus, we conclude that the anisotropic inverse opal substrates possess great potential in neural regeneration applications.
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Affiliation(s)
- Lin Xia
- MOE Key Laboratory for Developmental Genes and Human Disease, Institute of Life Sciences, Jiangsu Province High-Tech Key Laboratory for Bio-Medical Research, Southeast University, Nanjing, China
| | - Yixuan Shang
- Department of Clinical Medical Engineering, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, China
| | - Xiangbo Chen
- Key Laboratory of Molecular Epigenetics of the Ministry of Education, Northeast Normal University, Changchun, China
- Hangzhou Rongze Biotechnology Group Co., Ltd., Hangzhou, China
| | - He Li
- Department of Otorhinolaryngology Head and Neck Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Xiaochen Xu
- MOE Key Laboratory for Developmental Genes and Human Disease, Institute of Life Sciences, Jiangsu Province High-Tech Key Laboratory for Bio-Medical Research, Southeast University, Nanjing, China
| | - Wei Liu
- Department of Otolaryngology-Head and Neck Surgery, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Guang Yang
- Department of Otorhinolaryngology, Affiliated Sixth People’s Hospital of Shanghai Jiao Tong University, Shanghai, China
| | - Tian Wang
- Department of Otolaryngology-Head and Neck Surgery, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Xia Gao
- Department of Otolaryngology-Head and Neck Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Jiangsu Provincial Key Medical Discipline (Laboratory), Research Institute of Otolaryngology, Nanjing, China
| | - Renjie Chai
- MOE Key Laboratory for Developmental Genes and Human Disease, Institute of Life Sciences, Jiangsu Province High-Tech Key Laboratory for Bio-Medical Research, Southeast University, Nanjing, China
- Department of Clinical Medical Engineering, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, China
- Co-Innovation Center of Neuroregeneration, Nantong University, Nantong, China
- Institute for Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing, China
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29
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Samadian H, Maleki H, Fathollahi A, Salehi M, Gholizadeh S, Derakhshankhah H, Allahyari Z, Jaymand M. Naturally occurring biological macromolecules-based hydrogels: Potential biomaterials for peripheral nerve regeneration. Int J Biol Macromol 2020; 154:795-817. [DOI: 10.1016/j.ijbiomac.2020.03.155] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2020] [Revised: 03/15/2020] [Accepted: 03/16/2020] [Indexed: 12/18/2022]
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30
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Tiwari A, Kumar R, Shefi O, Randhawa JK. Fluorescent Mantle Carbon Coated Core–Shell SPIONs for Neuroengineering Applications. ACS APPLIED BIO MATERIALS 2020; 3:4665-4673. [DOI: 10.1021/acsabm.0c00582] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Ashish Tiwari
- School of Engineering, Indian Institute of Technology Mandi-175005, India
| | - Raj Kumar
- Bar-Ilan Institute for Nanotechnology and Advanced Materials (BINA) and Faculty of Engineering, Bar-Ilan University, Ramat Gan-52900, Israel
| | - Orit Shefi
- Bar-Ilan Institute for Nanotechnology and Advanced Materials (BINA) and Faculty of Engineering, Bar-Ilan University, Ramat Gan-52900, Israel
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31
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Pfister BJ, Grasman JM, Loverde JR. Exploiting biomechanics to direct the formation of nervous tissue. CURRENT OPINION IN BIOMEDICAL ENGINEERING 2020. [DOI: 10.1016/j.cobme.2020.05.009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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32
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Advances in nanotechnology and nanomaterials based strategies for neural tissue engineering. J Drug Deliv Sci Technol 2020. [DOI: 10.1016/j.jddst.2020.101617] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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33
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Kumar R, Kumar VB, Gedanken A. Sonochemical synthesis of carbon dots, mechanism, effect of parameters, and catalytic, energy, biomedical and tissue engineering applications. ULTRASONICS SONOCHEMISTRY 2020; 64:105009. [PMID: 32106066 DOI: 10.1016/j.ultsonch.2020.105009] [Citation(s) in RCA: 60] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/22/2019] [Revised: 01/28/2020] [Accepted: 02/06/2020] [Indexed: 05/27/2023]
Abstract
Carbon-based nanomaterials are gaining more and more interest because of their wide range of applications. Carbon dots (CDs) have shown exclusive interest due to unique and novel physicochemical, optical, electrical, and biological properties. Since their discovery, CDs became a promising material for wide range of research applications from energy to biomedical and tissue engineering applications. At same time several new methods have been developed for the synthesis of CDs. Compared to many of these methods, the sonochemical preparation is a green method with advantages such as facile, mild experimental conditions, green energy sources, and feasibility to formulate CDs and doped CDs with controlled physicochemical properties and lower toxicity. In the last five years, the sonochemically synthesized CDs were extensively studied in a wide range of applications. In this review, we discussed the sonochemical assisted synthesis of CDs, doped CDs and their nanocomposites. In addition to the synthetic route, we will discuss the effect of various experimental parameters on the physicochemical properties of CDs; and their applications in different research areas such as bioimaging, drug delivery, catalysis, antibacterial, polymerization, neural tissue engineering, dye absorption, ointments, electronic devices, lithium ion batteries, and supercapacitors. This review concludes with further research directions to be explored for the applications of sonochemical synthesized CDs.
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Affiliation(s)
- Raj Kumar
- Faculty of Engineering, Bar-Ilan University, Ramat Gan 52900, Israel; Bar Ilan Institute of Nanotechnology and Advanced Materials, Bar-Ilan University, Ramat Gan 52900, Israel
| | - Vijay Bhooshan Kumar
- Bar Ilan Institute of Nanotechnology and Advanced Materials, Bar-Ilan University, Ramat Gan 52900, Israel; Department of Chemistry, Bar-Ilan University, Ramat Gan 52900, Israel.
| | - Aharon Gedanken
- Bar Ilan Institute of Nanotechnology and Advanced Materials, Bar-Ilan University, Ramat Gan 52900, Israel; Department of Chemistry, Bar-Ilan University, Ramat Gan 52900, Israel.
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34
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Acoustic cavitation assisted hot melt mixing technique for solid lipid nanoparticles formulation, characterization, and controlled delivery of poorly water soluble drugs. J Drug Deliv Sci Technol 2019. [DOI: 10.1016/j.jddst.2019.101277] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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35
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Xu Y, Chen C, Hellwarth PB, Bao X. Biomaterials for stem cell engineering and biomanufacturing. Bioact Mater 2019; 4:366-379. [PMID: 31872161 PMCID: PMC6909203 DOI: 10.1016/j.bioactmat.2019.11.002] [Citation(s) in RCA: 53] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2019] [Revised: 11/09/2019] [Accepted: 11/20/2019] [Indexed: 12/15/2022] Open
Abstract
Recent years have witnessed the expansion of tissue failures and diseases. The uprising of regenerative medicine converges the sight onto stem cell-biomaterial based therapy. Tissue engineering and regenerative medicine proposes the strategy of constructing spatially, mechanically, chemically and biologically designed biomaterials for stem cells to grow and differentiate. Therefore, this paper summarized the basic properties of embryonic stem cells (ESCs), induced pluripotent stem cells (iPSCs) and adult stem cells. The properties of frequently used biomaterials were also described in terms of natural and synthetic origins. Particularly, the combination of stem cells and biomaterials for tissue repair applications was reviewed in terms of nervous, cardiovascular, pancreatic, hematopoietic and musculoskeletal system. Finally, stem-cell-related biomanufacturing was envisioned and the novel biofabrication technologies were discussed, enlightening a promising route for the future advancement of large-scale stem cell-biomaterial based therapeutic manufacturing.
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Affiliation(s)
| | | | | | - Xiaoping Bao
- Davidson School of Chemical Engineering, Purdue University, West Lafayette, West Lafayette, IN, 47907, USA
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36
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Moncal KK, Ozbolat V, Datta P, Heo DN, Ozbolat IT. Thermally-controlled extrusion-based bioprinting of collagen. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2019; 30:55. [PMID: 31041538 DOI: 10.1007/s10856-019-6258-2] [Citation(s) in RCA: 57] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2018] [Accepted: 04/17/2019] [Indexed: 05/23/2023]
Abstract
Thermally-crosslinked hydrogels in bioprinting have gained increasing attention due to their ability to undergo tunable crosslinking by modulating the temperature and time of crosslinking. In this paper, we present a new bioink composed of collagen type-I and Pluronic® F-127 hydrogels, which was bioprinted using a thermally-controlled bioprinting unit. Bioprintability and rheology of the composite bioink was studied in a thorough manner in order to determine the optimal bioprinting time and extrusion profile of the bioink for fabrication of three-dimensional (3D) constructs, respectively. It was observed that collagen fibers aligned themselves along the directions of the printed filaments after bioprinting based on the results on an anisotropy study. Furthermore, rat bone marrow-derived stem cells (rBMSCs) were bioprinted in order to determine the effect of thermally-controlled extrusion process. In vitro viability and proliferation study revealed that rBMSCs were able to maintain their viability after extrusion and attached to collagen fibers, spread and proliferated within the constructs up to seven days of culture.
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Affiliation(s)
- Kazim K Moncal
- Department of Engineering Science and Mechanics, Pennsylvania State University, University Park, PA, 16802, USA
- The Huck Institutes of the Life Sciences, Pennsylvania State University, University Park, PA, 16802, USA
| | - Veli Ozbolat
- Department of Mechanical Engineering, Ceyhan Engineering Faculty, Cukurova University, 01950, Adana, Turkey
| | - Pallab Datta
- Centre for Healthcare Science and Technology, Indian Institute of Engineering Science and Technology Shibpur, Howrah, West Bengal, 711103, India
| | - Dong N Heo
- Department of Engineering Science and Mechanics, Pennsylvania State University, University Park, PA, 16802, USA
- The Huck Institutes of the Life Sciences, Pennsylvania State University, University Park, PA, 16802, USA
| | - Ibrahim T Ozbolat
- Department of Engineering Science and Mechanics, Pennsylvania State University, University Park, PA, 16802, USA.
- The Huck Institutes of the Life Sciences, Pennsylvania State University, University Park, PA, 16802, USA.
- Biomedical Engineering Department, Pennsylvania State University, University Park, PA, 16802, USA.
- Materials Research Institute, Pennsylvania State University, University Park, PA, 16802, USA.
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37
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Kumar VB, Kumar R, Gedanken A, Shefi O. Fluorescent metal-doped carbon dots for neuronal manipulations. ULTRASONICS SONOCHEMISTRY 2019; 52:205-213. [PMID: 30522849 DOI: 10.1016/j.ultsonch.2018.11.017] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/26/2018] [Revised: 11/04/2018] [Accepted: 11/20/2018] [Indexed: 05/16/2023]
Abstract
There is a growing need for biocompatible nanocomposites that may efficiently interact with biological tissues through multiple modalities. Carbon dots (CDs) could serve as biocompatible fluorescence nanomaterials for targeted tissue/cell imaging. Important goals toward this end are to enhance the fluorescence quantum yields of the CDs and to increase their targetability to cells. Here, sonochemistry was used to develop a one-pot synthesis of CDs, including metal-doped CDs (M@CDs), demonstrating how various experimental parameters, such as sonication time, temperature, and power of sonication affect the size of the CDs (2-10 nm) and their fluorescence properties. The highest measured quantum yield of emission was ∼16%. Similarly, we synthesized CDs doped with different metals (M@CDs) including Ga, Sn, Zn, Ag, and Au. The interaction of M@CDs with neuron-like cells was examined and showed efficient uptake and low cytotoxicity. Moreover, the influence of the M@CDs on the improvement of neurites during initiation and elongation growth phases were compared with pristine CDs. Our research demonstrates the use of M@CDs for imaging and for neuronal interactions. The M@CD nanocomposites are promising due to their biocompatibility, photo-stability and potential selective affinity, paving the way for multifunctional biomedical applications.
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Affiliation(s)
- Vijay Bhooshan Kumar
- Bar-Ilan Institute for Nanotechnology and Advanced Materials (BINA) and Department of Chemistry, Bar-Ilan University, Ramat Gan 5290002, Israel
| | - Raj Kumar
- Bar-Ilan Institute for Nanotechnology and Advanced Materials (BINA) and Faculty of Engineering, Bar-Ilan University, Ramat Gan 5290002, Israel
| | - Aharon Gedanken
- Bar-Ilan Institute for Nanotechnology and Advanced Materials (BINA) and Department of Chemistry, Bar-Ilan University, Ramat Gan 5290002, Israel.
| | - Orit Shefi
- Bar-Ilan Institute for Nanotechnology and Advanced Materials (BINA) and Faculty of Engineering, Bar-Ilan University, Ramat Gan 5290002, Israel.
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Ranamukhaarachchi SK, Modi RN, Han A, Velez DO, Kumar A, Engler AJ, Fraley SI. Macromolecular crowding tunes 3D collagen architecture and cell morphogenesis. Biomater Sci 2019; 7:618-633. [PMID: 30515503 PMCID: PMC6375559 DOI: 10.1039/c8bm01188e] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Collagen I is the primary extracellular matrix component of most solid tumors and influences metastatic progression. Collagen matrix engineering techniques are useful for understanding how this complex biomaterial regulates cancer cell behavior and for improving in vitro cancer models. Here, we establish an approach to tune collagen fibril architecture using PEG as an inert molecular crowding agent during gelation and cell embedding. We find that crowding produces matrices with tighter fibril networks that are less susceptible to proteinase mediated degradation, but does not significantly alter matrix stiffness. The resulting matrices have the effect of preventing cell spreading, confining cells, and reducing cell contractility. Matrix degradability and fibril length are identified as strong predictors of cell confinement. Further, the degree of confinement predicts whether breast cancer cells will ultimately undergo individual or collective behaviors. Highly confined breast cancer cells undergo morphogenesis to form either invasive networks reminiscent of aggressive tumors or gland and lobule structures reminiscent of normal breast epithelia. This morphological transition is accompanied by expression of cell-cell adhesion genes, including PECAM1 and ICAM1. Our study suggests that cell confinement, mediated by matrix architecture, is a design feature that tunes the transcriptional and morphogenic state of breast cancer cells.
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Affiliation(s)
- S K Ranamukhaarachchi
- Bioengineering, University of California San Diego Jacobs School of Engineering, La Jolla, California, USA.
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Johnson CDL, Ganguly D, Zuidema JM, Cardinal TJ, Ziemba AM, Kearns KR, McCarthy SM, Thompson DM, Ramanath G, Borca-Tasciuc DA, Dutz S, Gilbert RJ. Injectable, Magnetically Orienting Electrospun Fiber Conduits for Neuron Guidance. ACS APPLIED MATERIALS & INTERFACES 2019; 11:356-372. [PMID: 30516370 PMCID: PMC6520652 DOI: 10.1021/acsami.8b18344] [Citation(s) in RCA: 56] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Magnetic electrospun fibers are of interest for minimally invasive biomaterial applications that also strive to provide cell guidance. Magnetic electrospun fibers can be injected and then magnetically positioned in situ, and the aligned fiber scaffolds provide consistent topographical guidance to cells. In this study, magnetically responsive aligned poly-l-lactic acid electrospun fiber scaffolds were developed and tested for neural applications. Incorporating oleic acid-coated iron oxide nanoparticles significantly increased neurite outgrowth, reduced the fiber alignment, and increased the surface nanotopography of the electrospun fibers. After verifying neuron viability on two-dimensional scaffolds, the system was tested as an injectable three-dimensional scaffold. Small conduits of aligned magnetic fibers were easily injected in a collagen or fibrinogen hydrogel solution and repositioned using an external magnetic field. The aligned magnetic fibers provided internal directional guidance to neurites within a three-dimensional collagen or fibrin model hydrogel, supplemented with Matrigel. Neurites growing from dorsal root ganglion explants extended 1.4-3× farther on the aligned fibers compared with neurites extending in the hydrogel alone. Overall, these results show that magnetic electrospun fiber scaffolds can be injected and manipulated with a magnetic field in situ to provide directional guidance to neurons inside an injectable hydrogel. Most importantly, this injectable guidance system increased both neurite alignment and neurite length within the hydrogel scaffold.
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Affiliation(s)
- Christopher D. L. Johnson
- Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, 110 8th Street, Troy, New York 12180-3590, United States
- Department of Biomedical Engineering, Rensselaer Polytechnic Institute, 110 8th Street, Troy, New York 12180-3590, United States
| | - Debmalya Ganguly
- Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, 110 8th Street, Troy, New York 12180-3590, United States
- Department of Mechanical, Aerospace, and Nuclear Engineering, Rensselaer Polytechnic Institute, Troy, New York 12180, United States
| | - Jonathan M. Zuidema
- Department of Chemistry and Biochemistry, University of California at San Diego, 9500 Gilman Drive, La Jolla, California 92093, United States
| | - Thomas J. Cardinal
- Department of Materials Science, Aerospace, and Nuclear Engineering, Rensselaer Polytechnic Institute, Troy, New York 12180, United States
| | - Alexis M. Ziemba
- Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, 110 8th Street, Troy, New York 12180-3590, United States
- Department of Biomedical Engineering, Rensselaer Polytechnic Institute, 110 8th Street, Troy, New York 12180-3590, United States
| | - Kathryn R. Kearns
- Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, 110 8th Street, Troy, New York 12180-3590, United States
- Department of Biomedical Engineering, Rensselaer Polytechnic Institute, 110 8th Street, Troy, New York 12180-3590, United States
| | - Simon M. McCarthy
- Department of Biomedical Engineering, Rensselaer Polytechnic Institute, 110 8th Street, Troy, New York 12180-3590, United States
| | - Deanna M. Thompson
- Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, 110 8th Street, Troy, New York 12180-3590, United States
- Department of Biomedical Engineering, Rensselaer Polytechnic Institute, 110 8th Street, Troy, New York 12180-3590, United States
| | - Ganpati Ramanath
- Department of Chemistry and Biochemistry, University of California at San Diego, 9500 Gilman Drive, La Jolla, California 92093, United States
| | - Diana A. Borca-Tasciuc
- Department of Biomedical Engineering, Rensselaer Polytechnic Institute, 110 8th Street, Troy, New York 12180-3590, United States
| | - Silvio Dutz
- Institute of Biomedical Engineering and Informatics, Technische Universität Ilmenau, Gustav-Kirchhoff-Straße, 298693 Ilmenau, Germany
| | - Ryan J. Gilbert
- Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, 110 8th Street, Troy, New York 12180-3590, United States
- Department of Biomedical Engineering, Rensselaer Polytechnic Institute, 110 8th Street, Troy, New York 12180-3590, United States
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40
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Grasman JM, Ferreira JA, Kaplan DL. Tissue Models for Neurogenesis and Repair in 3D. ADVANCED FUNCTIONAL MATERIALS 2018; 28:1803822. [PMID: 32440261 PMCID: PMC7241596 DOI: 10.1002/adfm.201803822] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Development and maturation of vascular and neuronal tissues occurs simultaneously in utero, and are regulated by significant crosstalk. We report on the development of a 3D tissue system to model neurogenesis and recapitulate developmental signaling conditions. Human umbilical vein endothelial cells (HUVECs) were seeded inside channels within collagen gels to represent nascent vascular networks. Axons extending from chicken dorsal root ganglia (DRGs) grew significantly longer and preferentially towards the HUVEC seeded channels with respect to unloaded channels. To replicate these findings without the vascular component, channels were loaded with brain-derived neurotrophic factor (BDNF), the principle signaling molecule in HUVEC-stimulated axonal growth, and axons likewise were significantly longer and grew preferentially towards the BDNF-loaded channels with respect to controls. This 3D tissue system was then used as an in vitro replicate for peripheral nerve injury, with neural repair observed within 2 weeks. These results demonstrate that our 3D tissue system can model neural network formation, repair after laceration injuries, and can be utilized to further study how these networks form and interact with other tissues, such as skin or skeletal muscle.
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Affiliation(s)
| | | | - David L. Kaplan
- Address Correspondence to: David L. Kaplan, Ph.D., Department of Biomedical Engineering, Tufts University, 4 Colby St, Medford, MA, 02155, Tel: 617-627-3251, Fax: 617-627-3231,
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41
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Wang J, Koelbl J, Boddupalli A, Yao Z, Bratlie KM, Schneider IC. Transfer of assembled collagen fibrils to flexible substrates for mechanically tunable contact guidance cues. Integr Biol (Camb) 2018; 10:705-718. [PMID: 30320857 PMCID: PMC6267882 DOI: 10.1039/c8ib00127h] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Contact guidance or bidirectional migration along aligned fibers modulates many physiological and pathological processes such as wound healing and cancer invasion. Aligned 2D collagen fibrils epitaxially grown on mica substrates replicate many features of contact guidance seen in aligned 3D collagen fiber networks. However, these 2D collagen self-assembled substrates are difficult to image through, do not have known or tunable mechanical properties and cells degrade and mechanically detach collagen fibrils from the surface, leading to an inability to assess contact guidance over long times. Here, we describe the transfer of aligned collagen fibrils from mica substrates to three different functionalized target substrates: glass, polydimethylsiloxane (PDMS) and polyacrylamide (PA). Aligned collagen fibrils can be efficiently transferred to all three substrates. This transfer resulted in substrates that were to varying degrees resistant to cell-mediated collagen fibril deformation that resulted in detachment of the collagen fibril field, allowing for contact guidance to be observed over longer time periods. On these transferred substrates, cell speed is lowest on softer contact guidance cues for both MDA-MB-231 and MTLn3 cells. Intermediate stiffness resulted in the fastest migration. MTLn3 cell directionality was low on soft contact guidance cues, whereas MDA-MB-231 cell directionality marginally increased. It appears that the stiffness of the contact guidance cue regulates contact guidance differently between cell types. The development of this collagen fibril transfer method allows for the attachment of aligned collagen fibrils on substrates, particularly flexible substrates, that do not normally promote aligned collagen fibril growth, increasing the utility of this collagen self-assembly system for the fundamental examination of mechanical regulation of contact guidance.
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Affiliation(s)
- Juan Wang
- Department of Chemical and Biological Engineering, Iowa State University, USA.
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42
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Seo J, Kim J, Joo S, Choi JY, Kang K, Cho WK, Choi IS. Nanotopography-Promoted Formation of Axon Collateral Branches of Hippocampal Neurons. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2018; 14:e1801763. [PMID: 30028572 DOI: 10.1002/smll.201801763] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2018] [Revised: 06/23/2018] [Indexed: 06/08/2023]
Abstract
Axon collateral branches, as a key structural motif of neurons, allow neurons to integrate information from highly interconnected, divergent networks by establishing terminal boutons. Although physical cues are generally known to have a comprehensive range of effects on neuronal development, their involvement in axonal branching remains elusive. Herein, it is demonstrated that the nanopillar arrays significantly increase the number of axon collateral branches and also promote their growth. Immunostaining and biochemical analyses indicate that the physical interactions between the nanopillars and the neurons give rise to lateral filopodia at the axon shaft via cytoskeletal changes, leading to the formation of axonal branches. This report, demonstrates that nanotopography regulates axonal branching, and provides a guideline for the design of sophisticated neuron-based devices and scaffolds for neuro-engineering.
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Affiliation(s)
- Jeongyeon Seo
- Department of Chemistry, Center for Cell-Encapsulation Research, KAIST, Daejeon, 34141, South Korea
| | - Juan Kim
- Department of Chemistry, Center for Cell-Encapsulation Research, KAIST, Daejeon, 34141, South Korea
| | - Sunghoon Joo
- Department of Chemistry, Center for Cell-Encapsulation Research, KAIST, Daejeon, 34141, South Korea
| | - Ji Yu Choi
- Department of Chemistry, Center for Cell-Encapsulation Research, KAIST, Daejeon, 34141, South Korea
| | - Kyungtae Kang
- Department of Applied Chemistry, Kyung Hee University, Yongin, Gyeonggi, 17104, South Korea
| | - Woo Kyung Cho
- Department of Chemistry, Chungnam National University, Daejeon, 34134, South Korea
| | - Insung S Choi
- Department of Chemistry, Center for Cell-Encapsulation Research, KAIST, Daejeon, 34141, South Korea
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43
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Yadav SK, Feigelson SW, Roncato F, Antman-Passig M, Shefi O, Lammerding J, Alon R. Frontline Science: Elevated nuclear lamin A is permissive for granulocyte transendothelial migration but not for motility through collagen I barriers. J Leukoc Biol 2018; 104:239-251. [PMID: 29601096 DOI: 10.1002/jlb.3hi1217-488r] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2017] [Revised: 02/15/2018] [Accepted: 02/16/2018] [Indexed: 01/21/2023] Open
Abstract
Transendothelial migration (TEM) of lymphocytes and neutrophils is associated with the ability of their deformable nuclei to displace endothelial cytoskeletal barriers. Lamin A is a key intermediate filament component of the nuclear lamina that is downregulated during granulopoiesis. When elevated, lamin A restricts nuclear squeezing through rigid confinements. To determine if the low lamin A expression by leukocyte nuclei is critical for their exceptional squeezing ability through endothelial barriers, we overexpressed this protein in granulocyte-like differentiated HL-60 cells. A 10-fold higher lamin A expression did not interfere with chemokinetic motility of these granulocytes on immobilized CXCL1. Furthermore, these lamin A high leukocytes exhibited normal chemotaxis toward CXCL1 determined in large pore transwell barriers, but poorly squeezed through 3 μm pores toward identical CXCL1 gradients. Strikingly, however, these leukocytes successfully completed paracellular TEM across inflamed endothelial monolayers under shear flow, albeit with a small delay in nuclear squeezing into their sub-endothelial pseudopodia. In contrast, CXCR2 mediated granulocyte motility through collagen I barriers was dramatically delayed by lamin A overexpression due to a failure of lamin A high nuclei to translocate into the pseudopodia of the granulocytes. Collectively, our data predict that leukocytes maintain a low lamin A content in their nuclear lamina in order to optimize squeezing through extracellular collagen barriers but can tolerate high lamin A content when crossing the highly adaptable barriers presented by the endothelial cytoskeleton.
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Affiliation(s)
- Sandeep Kumar Yadav
- Department of Immunology, The Weizmann Institute of Science, Rehovot, Israel
| | - Sara W Feigelson
- Department of Immunology, The Weizmann Institute of Science, Rehovot, Israel
| | - Francesco Roncato
- Department of Immunology, The Weizmann Institute of Science, Rehovot, Israel
| | - Merav Antman-Passig
- Faculty of Engineering, Bar Ilan Institute of Nanotechnologies and Advanced Materials, Bar Ilan University, Ramat Gan, Israel
| | - Orit Shefi
- Faculty of Engineering, Bar Ilan Institute of Nanotechnologies and Advanced Materials, Bar Ilan University, Ramat Gan, Israel
| | - Jan Lammerding
- Nancy E. and Peter C. Meinig School of Biomedical Engineering, Weill Institute for Cell and Molecular Biology, Cornell University, Ithaca, New York, USA
| | - Ronen Alon
- Department of Immunology, The Weizmann Institute of Science, Rehovot, Israel
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44
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Saheli M, Sepantafar M, Pournasr B, Farzaneh Z, Vosough M, Piryaei A, Baharvand H. Three-dimensional liver-derived extracellular matrix hydrogel promotes liver organoids function. J Cell Biochem 2018; 119:4320-4333. [PMID: 29247536 DOI: 10.1002/jcb.26622] [Citation(s) in RCA: 83] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2017] [Accepted: 12/12/2017] [Indexed: 12/25/2022]
Abstract
An important advantage of employing extracellular matrix (ECM)-derived biomaterials in tissue engineering is the ability to tailor the biochemical and biophysical microenvironment of the cells. This study aims to assess whether three-dimensional (3D) liver-derived ECM hydrogel (LEMgel) promotes physiological function of liver organoids generated by self-organization of human hepatocarcinoma cells together with human mesenchymal and endothelial cells. We have optimized the decellularization method to fabricate liver ECM derived from sheep to preserve the greatest content of glycosaminoglycans, collagen, laminin, and fibronectin in produced LEMgel. During gelation, complex viscoelasticity modulus of the LEMgel (3 mg/mL) increased from 186.7 to 1570.5 Pa and Tan Delta decreased from 0.27 to 0.18. Scanning electron microscopy (SEM) determined that the LEMgel had a pore size of 382 ± 71 µm. Hepatocarcinoma cells in the self-organized liver organoids in 3D LEMgel (LEMgel organoids) showed an epithelial phenotype and expressed ALB, CYP3A4, E-cadherin, and ASGPR. The LEMgel organoid had significant upregulation of transcripts of ALB, CYP3A4, CYP3A7, and TAT as well as downregulation of AFP compared to collagen type I- and hydrogel-free-organoids or organoids in solubilized LEM and 2D culture of hepatocarcinoma cells. Generated 3D LEMgel organoids had significantly more ALB and AAT secretion, urea production, CYP3A4 enzyme activity, and inducibility. In conclusion, 3D LEMgel enhanced the functional activity of self-organized liver organoids compared to traditional 2D, 3D, and collagen gel cultures. Our novel 3D LEMgel organoid could potentially be used in liver tissue engineering, drug discovery, toxicology studies, or bio-artificial liver fabrication.
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Affiliation(s)
- Mona Saheli
- Department of Biology and Anatomical Sciences, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mohammadmajid Sepantafar
- Department of Cell Engineering, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran.,Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
| | - Behshad Pournasr
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
| | - Zahra Farzaneh
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
| | - Massoud Vosough
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
| | - Abbas Piryaei
- Department of Biology and Anatomical Sciences, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran.,Department of Tissue Engineering and Applied Cell Sciences, School of Advanced Technology in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Hossein Baharvand
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran.,Department of Developmental Biology, University of Science and Culture, Tehran, Iran
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45
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Nuhn JAM, Perez AM, Schneider IC. Contact guidance diversity in rotationally aligned collagen matrices. Acta Biomater 2018; 66:248-257. [PMID: 29196116 PMCID: PMC5750117 DOI: 10.1016/j.actbio.2017.11.039] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2017] [Revised: 11/08/2017] [Accepted: 11/14/2017] [Indexed: 12/16/2022]
Abstract
Cancer cell metastasis is responsible for approximately 90% of deaths related to cancer. The migration of cancer cells away from the primary tumor and into healthy tissue is driven in part by contact guidance, or directed migration in response to aligned extracellular matrix. While contact guidance has been a focus of many studies, much of this research has explored environments that present 2D contact guidance structures. Contact guidance environments in 3D more closely resemble in vivo conditions and model cell-ECM interactions better than 2D environments. While most cells engage in directed migration on potent 2D contact guidance cues, there is diversity in response to contact guidance cues based on whether the cell migrates with a mesenchymal or amoeboid migration mode. In this paper, rotational alignment of collagen gels was used to study the differences in contact guidance between MDA-MB-231 (mesenchymal) and MTLn3 (amoeboid) cells. MDA-MB-231 cells migrate with high directional fidelity in aligned collagen gels, while MTLn3 cells show no directional migration. The collagen stiffness was increased through glycation, resulting in decreased MDA-MB-231 directionality in aligned collagen gels. Interestingly, partial inhibition of cell contractility dramatically decreased directionality in MDA-MB-231 cells. The directionality of MDA-MB-231 cells was most sensitive to ROCK inhibition, but unlike in 2D contact guidance environments, cell directionality and speed are more tightly coupled. Modulation of the contractile apparatus appears to more potently affect contact guidance than modulation of extracellular mechanical properties of the contact guidance cue. STATEMENT OF SIGNIFICANCE Collagen fiber alignment in the tumor microenvironment directs migration, a process called contact guidance, enhancing the efficiency of cancer invasion and metastasis. 3D systems that assess contact guidance by locally orienting collagen fiber alignment are lacking. Furthermore, cell type differences and the role of extracellular matrix stiffness in tuning contact guidance fidelity are not well characterized. In this paper rotational alignment of collagen fibers is used as a 3D contact guidance cue to illuminate cell type differences and the role of extracellular matrix stiffness in guiding cell migration along aligned fibers of collagen. This local alignment offers a simple approach by which to couple collagen alignment with gradients in other directional cues in devices such as microfluidic chambers.
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Affiliation(s)
- Jacob A M Nuhn
- Department of Chemical and Biological Engineering, Iowa State University, United States
| | - Anai M Perez
- Department of Chemistry and Physics, Grand View University, United States
| | - Ian C Schneider
- Department of Chemical and Biological Engineering, Iowa State University, United States; Department of Genetics, Development and Cell Biology, Iowa State University, United States.
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46
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Marcus M, Baranes K, Park M, Choi IS, Kang K, Shefi O. Interactions of Neurons with Physical Environments. Adv Healthc Mater 2017. [PMID: 28640544 DOI: 10.1002/adhm.201700267] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Nerve growth strongly relies on multiple chemical and physical signals throughout development and regeneration. Currently, a cure for injured neuronal tissue is an unmet need. Recent advances in fabrication technologies and materials led to the development of synthetic interfaces for neurons. Such engineered platforms that come in 2D and 3D forms can mimic the native extracellular environment and create a deeper understanding of neuronal growth mechanisms, and ultimately advance the development of potential therapies for neuronal regeneration. This progress report aims to present a comprehensive discussion of this field, focusing on physical feature design and fabrication with additional information about considerations of chemical modifications. We review studies of platforms generated with a range of topographies, from micro-scale features down to topographical elements at the nanoscale that demonstrate effective interactions with neuronal cells. Fabrication methods are discussed as well as their biological outcomes. This report highlights the interplay between neuronal systems and the important roles played by topography on neuronal differentiation, outgrowth, and development. The influence of substrate structures on different neuronal cells and parameters including cell fate, outgrowth, intracellular remodeling, gene expression and activity is discussed. Matching these effects to specific needs may lead to the emergence of clinical solutions for patients suffering from neuronal injuries or brain-machine interface (BMI) applications.
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Affiliation(s)
- Michal Marcus
- Faculty of Engineering and Bar-Ilan Institute for Nanotechnology and Advanced Materials; Bar-Ilan University; Ramat-Gan 5290002 Israel
| | - Koby Baranes
- Faculty of Engineering and Bar-Ilan Institute for Nanotechnology and Advanced Materials; Bar-Ilan University; Ramat-Gan 5290002 Israel
| | - Matthew Park
- Center for Cell-Encapsulation Research; Department of Chemistry; KAIST; Daejeon 34141 Korea
| | - Insung S. Choi
- Center for Cell-Encapsulation Research; Department of Chemistry; KAIST; Daejeon 34141 Korea
| | - Kyungtae Kang
- Department of Applied Chemistry; Kyung Hee University; Yongin Gyeonggi 17104 Korea
| | - Orit Shefi
- Faculty of Engineering and Bar-Ilan Institute for Nanotechnology and Advanced Materials; Bar-Ilan University; Ramat-Gan 5290002 Israel
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