1
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Wang Y, Yang F, Yang M, Wang S, He H, Hong M, Wang G, Li S, Liu H, Wang Y. Construction of Dome-Shaped 3D Corneal Epithelial Tissue Models Based on Eyeball-Shaped Gel Microspheres. ACS APPLIED MATERIALS & INTERFACES 2024; 16:31597-31609. [PMID: 38850560 DOI: 10.1021/acsami.4c05697] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2024]
Abstract
By overcoming interspecies differences and mimicking the in vivo microenvironment, three-dimensional (3D) in vitro corneal models have become a significant novel tool in contemporary ophthalmic disease research. However, existing 3D corneal models struggle to replicate the actual human corneal environment, especially the dome-shaped physiological structure with adjustable curvature. Addressing these challenges, this study introduces a straightforward method for fabricating collagen/chitosan-alginate eyeball-shaped gel microspheres with a Janus structure via a two-phase aqueous system, used subsequently to construct in vitro 3D corneal epithelial tissue models. By adjusting the diameter ratio of collagen/chitosan to alginate droplets, we can create eyeball-shaped gel microspheres with varying curvatures. Human corneal epithelial cells were seeded on the surfaces of these microspheres, leading to the formation of in vitro 3D corneal epithelial tissues characterized by dome-like multilayers and tight junctions. Additionally, the model demonstrated responsiveness to UVB exposure through the secretion of reactive oxygen species (ROS) and proinflammatory factors. Therefore, we believe that in vitro 3D corneal epithelial tissue models with dome-shaped structures hold significant potential for advancing ophthalmic research.
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Affiliation(s)
- Yilan Wang
- School of Life Sciences and Engineering, Southwest Jiaotong University, Chengdu, Sichuan 610031, China
| | - Feng Yang
- School of Life Sciences and Engineering, Southwest Jiaotong University, Chengdu, Sichuan 610031, China
| | - Menghan Yang
- School of Life Sciences and Engineering, Southwest Jiaotong University, Chengdu, Sichuan 610031, China
| | - Siping Wang
- School of Life Sciences and Engineering, Southwest Jiaotong University, Chengdu, Sichuan 610031, China
| | - Huatao He
- School of Life Sciences and Engineering, Southwest Jiaotong University, Chengdu, Sichuan 610031, China
| | - Meiying Hong
- School of Life Sciences and Engineering, Southwest Jiaotong University, Chengdu, Sichuan 610031, China
| | - Guanxiong Wang
- School of Life Sciences and Engineering, Southwest Jiaotong University, Chengdu, Sichuan 610031, China
| | - Suiyan Li
- School of Life Sciences and Engineering, Southwest Jiaotong University, Chengdu, Sichuan 610031, China
| | - Hong Liu
- Department of General Surgery, Wuxi No. 5 People's Hospital Affiliated to Jiangnan University, Wuxi, Jiangsu 214061, China
| | - Yaolei Wang
- School of Life Sciences and Engineering, Southwest Jiaotong University, Chengdu, Sichuan 610031, China
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2
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van der Putten C, Sahin G, Grant R, D’Urso M, Giselbrecht S, Bouten CVC, Kurniawan NA. Dimensionality Matters: Exploiting UV-Photopatterned 2D and Two-Photon-Printed 2.5D Contact Guidance Cues to Control Corneal Fibroblast Behavior and Collagen Deposition. Bioengineering (Basel) 2024; 11:402. [PMID: 38671823 PMCID: PMC11048187 DOI: 10.3390/bioengineering11040402] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2024] [Revised: 04/16/2024] [Accepted: 04/17/2024] [Indexed: 04/28/2024] Open
Abstract
In the event of disease or injury, restoration of the native organization of cells and extracellular matrix is crucial for regaining tissue functionality. In the cornea, a highly organized collagenous tissue, keratocytes can align along the anisotropy of the physical microenvironment, providing a blueprint for guiding the organization of the collagenous matrix. Inspired by this physiological process, anisotropic contact guidance cues have been employed to steer the alignment of keratocytes as a first step to engineer in vitro cornea-like tissues. Despite promising results, two major hurdles must still be overcome to advance the field. First, there is an enormous design space to be explored in optimizing cellular contact guidance in three dimensions. Second, the role of contact guidance cues in directing the long-term deposition and organization of extracellular matrix proteins remains unknown. To address these challenges, here we combined two microengineering strategies-UV-based protein patterning (2D) and two-photon polymerization of topographies (2.5D)-to create a library of anisotropic contact guidance cues with systematically varying height (H, 0 µm ≤ H ≤ 20 µm) and width (W, 5 µm ≤ W ≤ 100 µm). With this unique approach, we found that, in the short term (24 h), the orientation and morphology of primary human fibroblastic keratocytes were critically determined not only by the pattern width, but also by the height of the contact guidance cues. Upon extended 7-day cultures, keratocytes were shown to produce a dense, fibrous collagen network along the direction of the contact guidance cues. Moreover, increasing the heights also increased the aligned fraction of deposited collagen and the contact guidance response of cells, all whilst the cells maintained the fibroblastic keratocyte phenotype. Our study thus reveals the importance of dimensionality of the physical microenvironment in steering both cellular organization and the formation of aligned, collagenous tissues.
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Affiliation(s)
- Cas van der Putten
- Department of Biomedical Engineering, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
- Institute for Complex Molecular Systems, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
| | - Gozde Sahin
- MERLN Institute for Technology-Inspired Regenerative Medicine, Department of Cell Biology-Inspired Tissue Engineering cBITE, 6229 ER Maastricht, The Netherlands
| | - Rhiannon Grant
- MERLN Institute for Technology-Inspired Regenerative Medicine, Department of Cell Biology-Inspired Tissue Engineering cBITE, 6229 ER Maastricht, The Netherlands
| | - Mirko D’Urso
- Department of Biomedical Engineering, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
- Institute for Complex Molecular Systems, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
| | - Stefan Giselbrecht
- MERLN Institute for Technology-Inspired Regenerative Medicine, Department of Cell Biology-Inspired Tissue Engineering cBITE, 6229 ER Maastricht, The Netherlands
| | - Carlijn V. C. Bouten
- Department of Biomedical Engineering, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
- Institute for Complex Molecular Systems, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
| | - Nicholas A. Kurniawan
- Department of Biomedical Engineering, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
- Institute for Complex Molecular Systems, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
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3
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Alves AL, Carvalho AC, Machado I, Diogo GS, Fernandes EM, Castro VIB, Pires RA, Vázquez JA, Pérez-Martín RI, Alaminos M, Reis RL, Silva TH. Cell-Laden Marine Gelatin Methacryloyl Hydrogels Enriched with Ascorbic Acid for Corneal Stroma Regeneration. BIOENGINEERING (BASEL, SWITZERLAND) 2023; 10:bioengineering10010062. [PMID: 36671634 PMCID: PMC9854711 DOI: 10.3390/bioengineering10010062] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Revised: 12/27/2022] [Accepted: 12/30/2022] [Indexed: 01/06/2023]
Abstract
Corneal pathologies from infectious or noninfectious origin have a significant impact on the daily lives of millions of people worldwide. Despite the risk of organ rejection or infection, corneal transplantation is currently the only effective treatment. Finding safe and innovative strategies is the main goal of tissue-engineering-based approaches. In this study, the potential of gelatin methacryloyl (GelMA) hydrogels produced from marine-derived gelatin and loaded with ascorbic acid (as an enhancer of the biological activity of cells) was evaluated for corneal stromal applications. Marine GelMA was synthesized with a methacrylation degree of 75%, enabling effective photocrosslinking, and hydrogels with or without ascorbic acid were produced, encompassing human keratocytes. All the produced formulations exhibited excellent optical and swelling properties with easy handling as well as structural stability and adequate degradation rates that may allow proper extracellular matrix remodeling by corneal stromal cells. Formulations loaded with 0.5 mg/mL of ascorbic acid enhanced the biological performance of keratocytes and induced collagen production. These results suggest that, in addition to marine-derived gelatin being suitable for the synthesis of GelMA, the hydrogels produced are promising biomaterials for corneal regeneration applications.
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Affiliation(s)
- Ana L. Alves
- 3B’s Research Group, i3B’s—Research Institute on Biomaterials, Bisodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017 Guimarães, Portugal
- ICVS/3B’s—PT Government Associate Laboratory, 4806-909 Braga/Guimarães, Portugal
| | - Ana C. Carvalho
- 3B’s Research Group, i3B’s—Research Institute on Biomaterials, Bisodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017 Guimarães, Portugal
- ICVS/3B’s—PT Government Associate Laboratory, 4806-909 Braga/Guimarães, Portugal
| | - Inês Machado
- 3B’s Research Group, i3B’s—Research Institute on Biomaterials, Bisodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017 Guimarães, Portugal
- ICVS/3B’s—PT Government Associate Laboratory, 4806-909 Braga/Guimarães, Portugal
| | - Gabriela S. Diogo
- 3B’s Research Group, i3B’s—Research Institute on Biomaterials, Bisodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017 Guimarães, Portugal
- ICVS/3B’s—PT Government Associate Laboratory, 4806-909 Braga/Guimarães, Portugal
| | - Emanuel M. Fernandes
- 3B’s Research Group, i3B’s—Research Institute on Biomaterials, Bisodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017 Guimarães, Portugal
- ICVS/3B’s—PT Government Associate Laboratory, 4806-909 Braga/Guimarães, Portugal
| | - Vânia I. B. Castro
- 3B’s Research Group, i3B’s—Research Institute on Biomaterials, Bisodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017 Guimarães, Portugal
- ICVS/3B’s—PT Government Associate Laboratory, 4806-909 Braga/Guimarães, Portugal
| | - Ricardo A. Pires
- 3B’s Research Group, i3B’s—Research Institute on Biomaterials, Bisodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017 Guimarães, Portugal
- ICVS/3B’s—PT Government Associate Laboratory, 4806-909 Braga/Guimarães, Portugal
| | - José A. Vázquez
- Group of Recycling and Valorization of Waste Materials (REVAL), Instituto de Investigaciones Marinas (IIM-CSIC), C/Eduardo Cabello 6, CP36208 Vigo, Spain
| | - Ricardo I. Pérez-Martín
- Group of Food Biochemistry, Instituto de Investigaciones Marinas (IIM-CSIC), C/Eduardo Cabello 6, CP36208 Vigo, Spain
| | - Miguel Alaminos
- Department of Histology and Tissue Engineering Group, Faculty of Medicine, University of Granada and Instituto de Investigación Biosanitaria (ibs.GRANADA), E18016 Granada, Spain
| | - Rui L. Reis
- 3B’s Research Group, i3B’s—Research Institute on Biomaterials, Bisodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017 Guimarães, Portugal
- ICVS/3B’s—PT Government Associate Laboratory, 4806-909 Braga/Guimarães, Portugal
| | - Tiago H. Silva
- 3B’s Research Group, i3B’s—Research Institute on Biomaterials, Bisodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017 Guimarães, Portugal
- ICVS/3B’s—PT Government Associate Laboratory, 4806-909 Braga/Guimarães, Portugal
- Correspondence:
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Abbott A, Gravina ME, Vandadi M, Rahbar N, Coburn JM. Influence of lyophilization primary drying time and temperature on porous silk scaffold fabrication for biomedical applications. J Biomed Mater Res A 2023; 111:118-131. [PMID: 36205385 DOI: 10.1002/jbm.a.37451] [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: 10/14/2021] [Revised: 05/20/2022] [Accepted: 09/23/2022] [Indexed: 11/06/2022]
Abstract
Lyophilization of protein solutions, such as silk fibroin (silk), produces porous scaffolds useful for tissue engineering (TE). The impact of modifying lyophilization primary drying parameters on scaffold properties has not yet been explored previously. In this work, changes to primary drying duration and temperature were investigated using 3%, 6%, 9%, and 12% (w/v) silk solutions, via protocols labeled as Long Hold, Slow Ramp, and Standard. The 9% and 12% scaffolds were not successfully fabricated using the Standard protocol, while the Long Hold and Slow Ramp protocols resulted in scaffolds from all silk solution concentrations. Scaffolds fabricated using the Long Hold protocol had higher Young's moduli, smaller pore Feret diameters, and faster degradation. To investigate the utility of the different lyophilized scaffolds for in vitro cell culturing, the HepaRG liver cell line was cultured in the 3% to 12% scaffolds fabricated using the Long Hold protocol. The HepaRG cells grown in 3% scaffolds initially had greater lipid accumulation and metabolic activity than the other groups, although these differences were no longer apparent by Day 28. The deoxyribonucleic acid content of the HepaRG cells grown in 3% scaffold group was also initially significantly higher than the other groups. Significant differences in gene expression by 9% scaffolded HepaRG cells (CK19, HNFα) were seen on Day 14 while significant differences by 12% scaffolded HepaRG cells (ALB, APOA4) were seen on Day 28. Overall, modifying the primary drying parameters and silk concentration resulted in lyophilized scaffolds with tunable properties useful for TE applications.
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Affiliation(s)
- Alycia Abbott
- Department of Biomedical Engineering, Worcester Polytechnic Institute, Worcester, Massachusetts, USA
| | - Mattea E Gravina
- Department of Biomedical Engineering, Worcester Polytechnic Institute, Worcester, Massachusetts, USA
| | - Mobin Vandadi
- Department of Civil and Environmental Engineering, Worcester Polytechnic Institute, Worcester, Massachusetts, USA
| | - Nima Rahbar
- Department of Civil and Environmental Engineering, Worcester Polytechnic Institute, Worcester, Massachusetts, USA
| | - Jeannine M Coburn
- Department of Biomedical Engineering, Worcester Polytechnic Institute, Worcester, Massachusetts, USA
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5
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Yang S, Zhang J, Tan Y, Wang Y. Unraveling the mechanobiology of cornea: From bench side to the clinic. Front Bioeng Biotechnol 2022; 10:953590. [PMID: 36263359 PMCID: PMC9573972 DOI: 10.3389/fbioe.2022.953590] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2022] [Accepted: 09/06/2022] [Indexed: 11/18/2022] Open
Abstract
The cornea is a transparent, dome-shaped structure on the front part of the eye that serves as a major optic element and a protector from the external environment. Recent evidence shows aberrant alterations of the corneal mechano-environment in development and progression of various corneal diseases. It is, thus, critical to understand how corneal cells sense and respond to mechanical signals in physiological and pathological conditions. In this review, we summarize the corneal mechano-environment and discuss the impact of these mechanical cues on cellular functions from the bench side (in a laboratory research setting). From a clinical perspective, we comprehensively review the mechanical changes of corneal tissue in several cornea-related diseases, including keratoconus, myopia, and keratectasia, following refractive surgery. The findings from the bench side and clinic underscore the involvement of mechanical cues in corneal disorders, which may open a new avenue for development of novel therapeutic strategies by targeting corneal mechanics.
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Affiliation(s)
- Shu Yang
- Clinical College of Ophthalmology, Tianjin Medical University, Tianjin, China
- Tianjin Eye Institute, Tianjin Key Lab of Ophthalmology and Visual Science, Tianjin Eye Hospital, Tianjin, China
- Department of Ophthalmology, The First People’s Hospital of Huzhou, Huzhou, Zhejiang, China
| | - Jing Zhang
- Clinical College of Ophthalmology, Tianjin Medical University, Tianjin, China
- Tianjin Eye Institute, Tianjin Key Lab of Ophthalmology and Visual Science, Tianjin Eye Hospital, Tianjin, China
- School of Optometry, Hong Kong Polytechnic University, Hong Kong SAR, China
| | - Youhua Tan
- Hong Kong Polytechnic University Shenzhen Research Institute, Shenzhen, China
- Department of Biomedical Engineering, Hong Kong Polytechnic University, Hong Kong SAR, China
- *Correspondence: Youhua Tan, ; Yan Wang,
| | - Yan Wang
- Clinical College of Ophthalmology, Tianjin Medical University, Tianjin, China
- Tianjin Eye Institute, Tianjin Key Lab of Ophthalmology and Visual Science, Tianjin Eye Hospital, Tianjin, China
- *Correspondence: Youhua Tan, ; Yan Wang,
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6
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Topographic Orientation of Scaffolds for Tissue Regeneration: Recent Advances in Biomaterial Design and Applications. Biomimetics (Basel) 2022; 7:biomimetics7030131. [PMID: 36134935 PMCID: PMC9496066 DOI: 10.3390/biomimetics7030131] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2022] [Revised: 08/30/2022] [Accepted: 09/08/2022] [Indexed: 11/17/2022] Open
Abstract
Tissue engineering to develop alternatives for the maintenance, restoration, or enhancement of injured tissues and organs is gaining more and more attention. In tissue engineering, the scaffold used is one of the most critical elements. Its characteristics are expected to mimic the native extracellular matrix and its unique topographical structures. Recently, the topographies of scaffolds have received increasing attention, not least because different topographies, such as aligned and random, have different repair effects on various tissues. In this review, we have focused on various technologies (electrospinning, directional freeze-drying, magnetic freeze-casting, etching, and 3-D printing) to fabricate scaffolds with different topographic orientations, as well as discussed the physicochemical (mechanical properties, porosity, hydrophilicity, and degradation) and biological properties (morphology, distribution, adhesion, proliferation, and migration) of different topographies. Subsequently, we have compiled the effect of scaffold orientation on the regeneration of vessels, skin, neural tissue, bone, articular cartilage, ligaments, tendons, cardiac tissue, corneas, skeletal muscle, and smooth muscle. The compiled information in this review will facilitate the future development of optimal topographical scaffolds for the regeneration of certain tissues. In the majority of tissues, aligned scaffolds are more suitable than random scaffolds for tissue repair and regeneration. The underlying mechanism explaining the various effects of aligned and random orientation might be the differences in “contact guidance”, which stimulate certain biological responses in cells.
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7
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Prittinen J, Zhou X, Bano F, Backman L, Danielson P. Microstructured collagen films for 3D corneal stroma modelling. Connect Tissue Res 2022; 63:443-452. [PMID: 34894951 DOI: 10.1080/03008207.2021.2007901] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
PURPOSE/AIM Corneal injury is a major cause of impaired vision around the globe. The fine structure of the corneal stroma plays a pivotal role in the phenotype and behavior of the embedded cells during homeostasis and healing after trauma or infection. In order to study healing processes in the cornea, it is important to create culture systems that functionally mimic the natural environment. MATERIALS AND METHODS Collagen solution was vitrified on top of a grated film to achieve thin collagen films with parallel microgrooves. Keratocytes (corneal stromal cells) were cultured on the films either as a single layer or as stacked layers of films and cells. SEM and F-actin staining were used to analyze the pattern transference onto the collagen and the cell orientation on the films. Cell viability was analyzed with MTS and live/dead staining. Keratocytes, fibroblasts, and myofibroblasts were cultured to study the pattern's effect on phenotype. RESULTS A microstructured collagen film-based culture system that guides keratocytes (stromal cells) to their native, layerwise perpendicular orientation in 3D and that can support fibroblasts and myofibroblasts was created. The films are thin and transparent enough to observe cells at least three layers deep. The cells maintain viability in 2D and 3D cultures and the films can support fibroblast and myofibroblast phenotypes. CONCLUSIONS The films provide an easily reproducible stroma model that maintains high cell viability and improves the preservation of the keratocyte phenotype in keratocytes that are differentiated to fibroblasts.
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Affiliation(s)
- Juha Prittinen
- Department of Integrative Medical Biology, Umeå University, Umeå, Sweden
| | - Xin Zhou
- Department of Integrative Medical Biology, Umeå University, Umeå, Sweden
| | - Fouzia Bano
- Department of Clinical Microbiology, Umeå University, Umeå, Sweden.,Wallenberg Centre for Molecular Medicine, Umeå University, Umeå, Sweden
| | - Ludvig Backman
- Department of Integrative Medical Biology, Umeå University, Umeå, Sweden.,Department of Community Medicine and Rehabilitation, Umeå University, Umeå, Sweden
| | - Patrik Danielson
- Department of Integrative Medical Biology, Umeå University, Umeå, Sweden.,Department of Clinical Sciences, Ophthalmology, Umeå University, Umeå, Sweden
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8
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Cecen B, Bal-Ozturk A, Yasayan G, Alarcin E, Kocak P, Tutar R, Kozaci LD, Shin SR, Miri AK. Selection of natural biomaterials for micro-tissue and organ-on-chip models. J Biomed Mater Res A 2022; 110:1147-1165. [PMID: 35102687 PMCID: PMC10700148 DOI: 10.1002/jbm.a.37353] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Revised: 12/22/2021] [Accepted: 12/23/2021] [Indexed: 12/14/2022]
Abstract
The desired organ in micro-tissue models of organ-on-a-chip (OoC) devices dictates the optimum biomaterials, divided into natural and synthetic biomaterials. They can resemble biological tissues' biological functions and architectures by constructing bioactivity of macromolecules, cells, nanoparticles, and other biological agents. The inclusion of such components in OoCs allows them having biological processes, such as basic biorecognition, enzymatic cleavage, and regulated drug release. In this report, we review natural-based biomaterials that are used in OoCs and their main characteristics. We address the preparation, modification, and characterization methods of natural-based biomaterials and summarize recent reports on their applications in the design and fabrication of micro-tissue models. This article will help bioengineers select the proper biomaterials based on developing new technologies to meet clinical expectations and improve patient outcomes fusing disease modeling.
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Affiliation(s)
- Berivan Cecen
- Department of Mechanical Engineering, Rowan University, Glassboro, New Jersey, USA
| | - Ayca Bal-Ozturk
- Department of Analytical Chemistry, Faculty of Pharmacy, Istinye University, Istanbul, Turkey
- Department of Stem Cell and Tissue Engineering, Institute of Health Sciences, Istinye University, Istanbul, Turkey
| | - Gokcen Yasayan
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Marmara University, Istanbul, Turkey
| | - Emine Alarcin
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Marmara University, Istanbul, Turkey
| | - Polen Kocak
- Department of Genetics and Bioengineering, Faculty of Engineering and Architecture, Yeditepe University, Istanbul, Turkey
| | - Rumeysa Tutar
- Department of Chemistry, Faculty of Engineering, Istanbul University-Cerrahpasa, Istanbul, Turkey
| | - Leyla Didem Kozaci
- Faculty of Medicine, Department of Medical Biochemistry, Ankara Yildirim Beyazit University, Ankara, Turkey
| | - Su Ryon Shin
- Division of Engineering in Medicine, Department of Medicine, Harvard Medical School, Brigham and Women’s Hospital, Cambridge, Massachusetts, USA
| | - Amir K. Miri
- Department of Mechanical Engineering, Rowan University, Glassboro, New Jersey, USA
- Department of Biomedical Engineering, New Jersey Institute of Technology, Newark, New Jersey, USA
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9
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Vrana NE, Gupta S, Mitra K, Rizvanov AA, Solovyeva VV, Antmen E, Salehi M, Ehterami A, Pourchet L, Barthes J, Marquette CA, von Unge M, Wang CY, Lai PL, Bit A. From 3D printing to 3D bioprinting: the material properties of polymeric material and its derived bioink for achieving tissue specific architectures. Cell Tissue Bank 2022; 23:417-440. [PMID: 35000046 DOI: 10.1007/s10561-021-09975-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Accepted: 10/31/2021] [Indexed: 12/22/2022]
Abstract
The application of 3D printing technologies fields for biological tissues, organs, and cells in the context of medical and biotechnology applications requires a significant amount of innovation in a narrow printability range. 3D bioprinting is one such way of addressing critical design challenges in tissue engineering. In a more general sense, 3D printing has become essential in customized implant designing, faithful reproduction of microenvironmental niches, sustainable development of implants, in the capacity to address issues of effective cellular integration, and long-term stability of the cellular constructs in tissue engineering. This review covers various aspects of 3D bioprinting, describes the current state-of-the-art solutions for all aforementioned critical issues, and includes various illustrative representations of technologies supporting the development of phases of 3D bioprinting. It also demonstrates several bio-inks and their properties crucial for being used for 3D printing applications. The review focus on bringing together different examples and current trends in tissue engineering applications, including bone, cartilage, muscles, neuron, skin, esophagus, trachea, tympanic membrane, cornea, blood vessel, immune system, and tumor models utilizing 3D printing technology and to provide an outlook of the future potentials and barriers.
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Affiliation(s)
| | | | - Kunal Mitra
- Florida Institute of Technology, Melbourne, USA
| | | | | | - Ezgi Antmen
- Center of Excellence in Biomaterials and Tissue Engineering, BIOMATEN, Middle East Technical University (METU), Ankara, Turkey
| | - Majid Salehi
- Department of Tissue Engineering, School of Medicine, Shahroud University of Medical Sciences, Shahroud, Iran.,Tissue Engineering and Stem Cells Research Center, Shahroud University of Medical Sciences, Shahroud, Iran
| | - Arian Ehterami
- Department of Mechanical Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Lea Pourchet
- UMR 1121, Biomaterials and Bioengineering, INSERM, Strasbourg, France
| | - Julien Barthes
- UMR 1121, Biomaterials and Bioengineering, INSERM, Strasbourg, France
| | | | - Magnus von Unge
- Akershus University Hospital and University of Oslo, Oslo, Norway.,Center for Clinical Research, Uppsala University, Vasteras, Uppsala, Sweden
| | - Chi-Yun Wang
- Department of Orthopedic Surgery, Chang Gung Memorial Hospital, Taoyuan City, Taiwan.,Bone and Joint Research Center, Chang Gung Memorial Hospital, Taoyuan City, Taiwan
| | - Po-Liang Lai
- Department of Orthopedic Surgery, Chang Gung Memorial Hospital, Taoyuan City, Taiwan.,Bone and Joint Research Center, Chang Gung Memorial Hospital, Taoyuan City, Taiwan
| | - Arindam Bit
- National Institute of Technology, Raipur, India.
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10
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Bosworth LA, Lanaro M, O'Loughlin DA, D'Sa RA, Woodruff MA, Williams RL. Melt electro-written scaffolds with box-architecture support orthogonally oriented collagen. Biofabrication 2021; 14. [PMID: 34883476 DOI: 10.1088/1758-5090/ac41a1] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Accepted: 12/09/2021] [Indexed: 11/12/2022]
Abstract
Melt electro-writing (MEW) is a state-of-the-art technique that supports fabrication of 3D, precisely controlled and reproducible fiber structures. A standard MEW scaffold design is a box-structure, where a repeat layer of 90° boxes is produced from a single fiber. In 3D form (i.e. multiple layers), this structure has the potential to mimic orthogonal arrangements of collagen, as observed in the corneal stroma. In this study, we determined the response of human primary corneal stromal cells and their deposited fibrillar collagen (detected using a CNA35 probe) following six weeksin vitroculture on these box-structures made from poly(ϵ-caprolactone) (PCL). Comparison was also made to glass substrates (topography-free) and electrospun PCL fibers (aligned topography). Cell orientation and collagen deposition were non-uniform on glass substrates. Electrospun scaffolds supported an excellent parallel arrangement of cells and deposited collagen to the underlying architecture of aligned fibers, but there was no evidence of bidirectional collagen. In contrast, MEW scaffolds encouraged the formation of a dense, interconnected cellular network and deposited fibrillar collagen layers with a distinct orthogonal-arrangement. Collagen fibrils were particularly dominant through the middle layers of the MEW scaffolds' total thickness and closer examination revealed these fibrils to be concentrated within the pores' central regions. With the demand for donor corneas far exceeding the supply-leaving many with visual impairment-the application of MEW as a potential technique to recreate the corneal stroma with spontaneous, bidirectional collagen organization warrants further study.
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Affiliation(s)
- Lucy A Bosworth
- Department of Eye and Vision Science, Institute of Life Course and Medical Sciences, Faculty of Health and Life Sciences, University of Liverpool, Liverpool L7 8TX, United Kingdom
| | - Matthew Lanaro
- Science and Engineering Faculty, Queensland University of Technology, Brisbane, QLD 4000, Australia
| | - Danielle A O'Loughlin
- Department of Eye and Vision Science, Institute of Life Course and Medical Sciences, Faculty of Health and Life Sciences, University of Liverpool, Liverpool L7 8TX, United Kingdom
| | - Raechelle A D'Sa
- Department of Mechanical, Materials and Aerospace Engineering, Faculty of Science and Engineering, University of Liverpool, Liverpool L69 3GH, United Kingdom
| | - Maria A Woodruff
- Science and Engineering Faculty, Queensland University of Technology, Brisbane, QLD 4000, Australia
| | - Rachel L Williams
- Department of Eye and Vision Science, Institute of Life Course and Medical Sciences, Faculty of Health and Life Sciences, University of Liverpool, Liverpool L7 8TX, United Kingdom
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11
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Jameson JF, Pacheco MO, Nguyen HH, Phelps EA, Stoppel WL. Recent Advances in Natural Materials for Corneal Tissue Engineering. Bioengineering (Basel) 2021; 8:161. [PMID: 34821727 PMCID: PMC8615221 DOI: 10.3390/bioengineering8110161] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2021] [Revised: 10/12/2021] [Accepted: 10/21/2021] [Indexed: 12/13/2022] Open
Abstract
Given the incidence of corneal dysfunctions and diseases worldwide and the limited availability of healthy, human donors, investigators are working to generate engineered cellular and acellular therapeutic approaches as alternatives to corneal transplants from human cadavers. These engineered strategies aim to address existing complications with human corneal transplants, including graft rejection, infection, and complications resulting from surgical methodologies. The main goals of these research endeavors are to (1) determine ideal mechanical properties, (2) devise methodologies to improve the efficacy of engineered corneal grafts and cell-based therapies, and (3) optimize transplantation of engineered tissue structures in the eye. Thus, recent innovations have sought to address these challenges through both in vitro and in vivo studies. This review covers recent work aimed at evaluating engineered materials, potential therapeutic cells, and the resulting cell-material interactions that lead to optimal corneal graft properties. Furthermore, we discuss promising strategies in corneal tissue engineering techniques and in vivo studies in animal models.
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Affiliation(s)
- Julie F. Jameson
- Department of Chemical Engineering, University of Florida, Gainesville, FL 32611, USA; (J.F.J.); (M.O.P.)
| | - Marisa O. Pacheco
- Department of Chemical Engineering, University of Florida, Gainesville, FL 32611, USA; (J.F.J.); (M.O.P.)
| | - Henry H. Nguyen
- Department of Materials Science and Engineering, University of Florida, Gainesville, FL 32611, USA;
| | - Edward A. Phelps
- J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, Gainesville, FL 32611, USA;
| | - Whitney L. Stoppel
- Department of Chemical Engineering, University of Florida, Gainesville, FL 32611, USA; (J.F.J.); (M.O.P.)
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12
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Madl AC, Myung D. Supramolecular Host-Guest Hydrogels for Corneal Regeneration. Gels 2021; 7:163. [PMID: 34698163 PMCID: PMC8544529 DOI: 10.3390/gels7040163] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Revised: 09/28/2021] [Accepted: 09/30/2021] [Indexed: 12/12/2022] Open
Abstract
Over 6.2 million people worldwide suffer from moderate to severe vision loss due to corneal disease. While transplantation with allogenic donor tissue is sight-restoring for many patients with corneal blindness, this treatment modality is limited by long waiting lists and high rejection rates, particularly in patients with severe tissue damage and ocular surface pathologies. Hydrogel biomaterials represent a promising alternative to donor tissue for scalable, nonimmunogenic corneal reconstruction. However, implanted hydrogel materials require invasive surgeries and do not precisely conform to tissue defects, increasing the risk of patient discomfort, infection, and visual distortions. Moreover, most hydrogel crosslinking chemistries for the in situ formation of hydrogels exhibit off-target effects such as cross-reactivity with biological structures and/or result in extractable solutes that can have an impact on wound-healing and inflammation. To address the need for cytocompatible, minimally invasive, injectable tissue substitutes, host-guest interactions have emerged as an important crosslinking strategy. This review provides an overview of host-guest hydrogels as injectable therapeutics and highlights the potential application of host-guest interactions in the design of corneal stromal tissue substitutes.
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Affiliation(s)
- Amy C. Madl
- Department of Chemical Engineering, Stanford University, Stanford, CA 94305, USA;
| | - David Myung
- Department of Chemical Engineering, Stanford University, Stanford, CA 94305, USA;
- Byers Eye Institute, Stanford University School of Medicine, Palo Alto, CA 94303, USA
- VA Palo Alto Health Care System, Palo Alto, CA 94304, USA
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13
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Zhou X, Backman LJ, Danielson P. Activation of NF-κB signaling via cytosolic mitochondrial RNA sensing in kerotocytes with mitochondrial DNA common deletion. Sci Rep 2021; 11:7360. [PMID: 33795727 PMCID: PMC8016944 DOI: 10.1038/s41598-021-86522-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Accepted: 03/16/2021] [Indexed: 02/01/2023] Open
Abstract
Scar formation as a result of corneal wound healing is a leading cause of blindness. It is a challenge to understand why scar formation is more likely to occur in the central part of the cornea as compared to the peripheral part. The purpose of this study was to unravel the underlying mechanisms. We applied RNA-seq to uncover the differences of expression profile in keratocytes in the central/peripheral part of the cornea. The relative quantity of mitochondrial RNA was measured by multiplex qPCR. The characterization of mitochondrial RNA in the cytoplasm was confirmed by immunofluoresence microscope and biochemical approach. Gene expression was analyzed by western blot and RT qPCR. We demonstrate that the occurrence of mitochondrial DNA common deletion is greater in keratocytes from the central cornea as compared to those of the peripheral part. The keratocytes with CD have elevated oxidative stress levels, which leads to the leakage of mitochondrial double-stranded RNA into the cytoplasm. The cytoplasmic mitochondrial double-stranded RNA is sensed by MDA5, which induces NF-κB activation. The NF-κB activation thereafter induces fibrosis-like extracellular matrix expressions and IL-8 mRNA transcription. These results provide a novel explanation of the different clinical outcome in different regions of the cornea during wound healing.
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Affiliation(s)
- Xin Zhou
- grid.12650.300000 0001 1034 3451Department of Integrative Medical Biology, Umeå University, 90187 Umeå, Sweden
| | - Ludvig J. Backman
- grid.12650.300000 0001 1034 3451Department of Integrative Medical Biology, Umeå University, 90187 Umeå, Sweden ,grid.12650.300000 0001 1034 3451Department of Community Medicine and Rehabilitation, Physiotherapy, Umeå University, 90187 Umeå, Sweden
| | - Patrik Danielson
- grid.12650.300000 0001 1034 3451Department of Integrative Medical Biology, Umeå University, 90187 Umeå, Sweden ,grid.12650.300000 0001 1034 3451Department of Clinical Sciences, Ophthalmology, Umeå University, Umeå, Sweden
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14
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Zhang W, Ling C, Li X, Sheng R, Liu H, Zhang A, Jiang Y, Chen J, Yao Q. Cell-Free Biomimetic Scaffold with Cartilage Extracellular Matrix-Like Architectures for In Situ Inductive Regeneration of Osteochondral Defects. ACS Biomater Sci Eng 2020; 6:6917-6925. [PMID: 33320617 DOI: 10.1021/acsbiomaterials.0c01276] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The development of a biomimetic scaffold designed to provide a native extracellular matrix (ECM)-like microenvironment is a potential strategy for cartilage repair. The ECM in native articular cartilage is structurally composed of three different architectural zones, i.e., horizontally aligned, randomly arranged, and vertically aligned collagen fibers. However, the effects of scaffolds with these three different ECM-like architectures on in vivo cartilage regeneration are not clear. In this study, we aim to systematically investigate and compare their in situ inductive regenerative efficacy on cartilage defects. ECM-mimetic silk fibroin scaffolds with horizontally aligned, vertically aligned, and random pore architectures are fabricated using the controlled directional freezing technique. All of these scaffolds exhibit similar pore area, swelling ratio, and in vitro degradation behavior. Nevertheless, the aligned scaffolds have a higher pore aspect ratio and hydrophilicity, and increase the proliferation of bone marrow-derived mesenchymal stem cells (BMSCs) in vitro. When implanted into rabbit osteochondral defects, the scaffold with vertically aligned pore architectures provides a more cell-favorable microenvironment conducive to endogenous BMSCs than other scaffolds and supports the simultaneous regeneration of cartilage and subchondral bone. These findings indicate that scaffolds with vertically aligned ECM-like architectures serve as an effective cell-free and growth factor-free scaffold for enhanced endogenous osteochondral regeneration.
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Affiliation(s)
- Wei Zhang
- School of Medicine, Southeast University, 210009 Nanjing, China.,Jiangsu Key Laboratory for Biomaterials and Devices, Southeast University, 210096 Nanjing, China.,China Orthopedic Regenerative Medicine Group (CORMed), 310058 Hangzhou, China
| | - Chen Ling
- Department of Orthopaedic Surgery, Institute of Digital Medicine, Nanjing First Hospital, Nanjing Medical University, 210006 Nanjing, China
| | - Xiaolong Li
- School of Medicine, Southeast University, 210009 Nanjing, China
| | - Renwang Sheng
- School of Medicine, Southeast University, 210009 Nanjing, China
| | - Haoyang Liu
- School of Medicine, Southeast University, 210009 Nanjing, China
| | - Aini Zhang
- School of Medicine, Southeast University, 210009 Nanjing, China
| | - Yujie Jiang
- School of Medicine, Southeast University, 210009 Nanjing, China
| | - Jialin Chen
- School of Medicine, Southeast University, 210009 Nanjing, China.,Jiangsu Key Laboratory for Biomaterials and Devices, Southeast University, 210096 Nanjing, China.,China Orthopedic Regenerative Medicine Group (CORMed), 310058 Hangzhou, China
| | - Qingqiang Yao
- Department of Orthopaedic Surgery, Institute of Digital Medicine, Nanjing First Hospital, Nanjing Medical University, 210006 Nanjing, China.,China Orthopedic Regenerative Medicine Group (CORMed), 310058 Hangzhou, China
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15
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Mahdavi SS, Abdekhodaie MJ, Mashayekhan S, Baradaran-Rafii A, Djalilian AR. Bioengineering Approaches for Corneal Regenerative Medicine. Tissue Eng Regen Med 2020; 17:567-593. [PMID: 32696417 PMCID: PMC7373337 DOI: 10.1007/s13770-020-00262-8] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2020] [Accepted: 04/06/2020] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Since the cornea is responsible for transmitting and focusing light into the eye, injury or pathology affecting any layer of the cornea can cause a detrimental effect on visual acuity. Aging is also a reason for corneal degeneration. Depending on the level of the injury, conservative therapies and donor tissue transplantation are the most common treatments for corneal diseases. Not only is there a lack of donor tissue and risk of infection/rejection, but the inherent ability of corneal cells and layers to regenerate has led to research in regenerative approaches and treatments. METHODS In this review, we first discussed the anatomy of the cornea and the required properties for reconstructing layers of the cornea. Regenerative approaches are divided into two main categories; using direct cell/growth factor delivery or using scaffold-based cell delivery. It is expected delivered cells migrate and integrate into the host tissue and restore its structure and function to restore vision. Growth factor delivery also has shown promising results for corneal surface regeneration. Scaffold-based approaches are categorized based on the type of scaffold, since it has a significant impact on the efficiency of regeneration, into the hydrogel and non-hydrogel based scaffolds. Various types of cells, biomaterials, and techniques are well covered. RESULTS The most important characteristics to be considered for biomaterials in corneal regeneration are suitable mechanical properties, biocompatibility, biodegradability, and transparency. Moreover, a curved shape structure and spatial arrangement of the fibrils have been shown to mimic the corneal extracellular matrix for cells and enhance cell differentiation. CONCLUSION Tissue engineering and regenerative medicine approaches showed to have promising outcomes for corneal regeneration. However, besides proper mechanical and optical properties, other factors such as appropriate sterilization method, storage, shelf life and etc. should be taken into account in order to develop an engineered cornea for clinical trials.
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Affiliation(s)
- S Sharareh Mahdavi
- Department of Chemical and Petroleum Engineering, Sharif University of Technology, 1393 Azadi Ave., Tehran, 11365-11155, Iran
| | - Mohammad J Abdekhodaie
- Department of Chemical and Petroleum Engineering, Sharif University of Technology, 1393 Azadi Ave., Tehran, 11365-11155, Iran.
| | - Shohreh Mashayekhan
- Department of Chemical and Petroleum Engineering, Sharif University of Technology, 1393 Azadi Ave., Tehran, 11365-11155, Iran
| | - Alireza Baradaran-Rafii
- Ophthalmic Research Center, Shahid Beheshti University of Medical Sciences, SBUMS, Arabi Ave, Daneshjoo Blvd, Velenjak, Tehran, 19839-63113, Iran
| | - Ali R Djalilian
- Department of Ophthalmology and Visual Sciences, University of Illinois at Chicago, 1200 W Harrison St, Chicago, IL, 60607, USA
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16
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Zhang W, Chen J, Qu M, Backman LJ, Zhang A, Liu H, Zhang X, Zhou Q, Danielson P. Sustained Release of TPCA-1 from Silk Fibroin Hydrogels Preserves Keratocyte Phenotype and Promotes Corneal Regeneration by Inhibiting Interleukin-1β Signaling. Adv Healthc Mater 2020; 9:e2000591. [PMID: 32743953 DOI: 10.1002/adhm.202000591] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2020] [Revised: 07/09/2020] [Indexed: 12/14/2022]
Abstract
Corneal injury due to ocular trauma or infection is one of the most challenging vision impairing pathologies that exists. Many studies focus on the pro-inflammatory and pro-angiogenic effects of interleukin-1β (IL-1β) on corneal wound healing. However, the effect of IL-1β on keratocyte phenotype and corneal repair, as well as the underlying mechanisms, is not clear. This study reports, for the first time, that IL-1β induces phenotype changes of keratocytes in vitro, by significantly down-regulating the gene and protein expression levels of keratocyte markers (Keratocan, Lumican, Aldh3a1 and CD34). Furthermore, it is found that the NF-κB pathway is involved in the IL-1β-induced changes of keratocyte phenotype, and that the selective IKKβ inhibitor TPCA-1, which inhibits NF-κB, can preserve keratocyte phenotype under IL-1β simulated pathological conditions in vitro. By using a murine model of corneal injury, it is shown that sustained release of TPCA-1 from degradable silk fibroin hydrogels accelerates corneal wound healing, improves corneal transparency, enhances the expression of keratocyte markers, and supports the regeneration of well-organized epithelium and stroma. These findings provide insights not only into the pathophysiological mechanisms of corneal wound healing, but also into the potential development of new treatments for patients with corneal injuries.
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Affiliation(s)
- Wei Zhang
- School of Medicine Southeast University Nanjing 210009 China
- Department of Integrative Medical Biology, Anatomy Umeå University Umeå SE‐901 87 Sweden
- Jiangsu Key Laboratory for Biomaterials and Devices Southeast University Nanjing 210096 China
| | - Jialin Chen
- School of Medicine Southeast University Nanjing 210009 China
- Department of Integrative Medical Biology, Anatomy Umeå University Umeå SE‐901 87 Sweden
- Jiangsu Key Laboratory for Biomaterials and Devices Southeast University Nanjing 210096 China
| | - Mingli Qu
- State Key Laboratory Cultivation Base Shandong Provincial Key Laboratory of Ophthalmology, Shandong Eye Institute Shandong First Medical University & Shandong Academy of Medical Sciences Qingdao 266071 China
| | - Ludvig J. Backman
- Department of Integrative Medical Biology, Anatomy Umeå University Umeå SE‐901 87 Sweden
| | - Aini Zhang
- School of Medicine Southeast University Nanjing 210009 China
| | - Haoyang Liu
- School of Medicine Southeast University Nanjing 210009 China
| | - Xiaoping Zhang
- Ophthalmology Department the Affiliated Hospital of Qingdao University Qingdao 266003 China
| | - Qingjun Zhou
- State Key Laboratory Cultivation Base Shandong Provincial Key Laboratory of Ophthalmology, Shandong Eye Institute Shandong First Medical University & Shandong Academy of Medical Sciences Qingdao 266071 China
| | - Patrik Danielson
- Department of Integrative Medical Biology, Anatomy Umeå University Umeå SE‐901 87 Sweden
- Department of Clinical Sciences, Ophthalmology Umeå University Umeå SE‐901 87 Sweden
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17
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Chen J, Backman LJ, Zhang W, Ling C, Danielson P. Regulation of Keratocyte Phenotype and Cell Behavior by Substrate Stiffness. ACS Biomater Sci Eng 2020; 6:5162-5171. [PMID: 33455266 DOI: 10.1021/acsbiomaterials.0c00510] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Corneal tissue engineering is an alternative way to solve the problem of lack of corneal donor tissue in corneal transplantation. Keratocytes with a normal phenotype and function in tissue-engineered cornea would be critical for corneal regeneration. Although the role of extracellular/substrate material stiffness is well-known for the regulation of the cell phenotype and cell behavior in many different cell types, its effects in keratocyte culture have not yet been thoroughly studied. This project studied the effect of substrate stiffness on the keratocyte phenotype marker expression and typical cell behavior (cell adhesion, proliferation, and migration), and the possible mechanisms involved. Human primary keratocytes were cultured on tissue culture plastic (TCP, ∼106 kPa) or on plates with the stiffness equivalent of physiological human corneal stroma (25 kPa) or vitreous body (1 kPa). The expression of keratocyte phenotype markers, cell adhesion, proliferation, and migration were compared. The results showed that the stiffness of the substrate material regulates the phenotype marker expression and cell behavior of cultured keratocytes. Physiological corneal stiffness (25 kPa) superiorly preserved the cell phenotype when compared to the TCP and 1 kPa group. Keratocytes had a larger cell area when cultured on 25 kPa plates as compared to on TCP. Treatment of cells with NSC 23766 (Rac1 inhibitor) mimicked the response in the cell phenotype and behavior seen in the transition from soft materials to stiff materials, including the cytoskeletal structure, expression of keratocyte phenotype markers, and cell behavior. In conclusion, this study shows that substrate stiffness regulates the cell phenotype marker expression and cell behavior of keratocytes by Rac1-mediated cytoskeletal reorganization. This knowledge contributes to the development of corneal tissue engineering.
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Affiliation(s)
- Jialin Chen
- Department of Pathogenic Biology and Immunology, School of Medicine, Southeast University, Nanjing 210009, China.,Department of Integrative Medical Biology, Anatomy, Umeå University, Umeå SE-901 87, Sweden.,Jiangsu Key Laboratory for Biomaterials and Devices, Southeast University, Nanjing 210009, China
| | - Ludvig J Backman
- Department of Integrative Medical Biology, Anatomy, Umeå University, Umeå SE-901 87, Sweden.,Department of Community Medicine and Rehabilitation, Physiotherapy, Umeå University, Umeå SE-901 87, Sweden
| | - Wei Zhang
- Department of Integrative Medical Biology, Anatomy, Umeå University, Umeå SE-901 87, Sweden.,Jiangsu Key Laboratory for Biomaterials and Devices, Southeast University, Nanjing 210009, China.,Department of Physiology, School of Medicine, Southeast University, Nanjing 210009, China
| | - Chen Ling
- Department of Orthopaedic Surgery, Institute of Digital Medicine, Nanjing First Hospital, Nanjing Medical University, Nanjing 210000, China
| | - Patrik Danielson
- Department of Integrative Medical Biology, Anatomy, Umeå University, Umeå SE-901 87, Sweden.,Department of Clinical Sciences, Ophthalmology, Umeå University, Umeå SE-901 87, Sweden
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18
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McKay TB, Hutcheon AEK, Guo X, Zieske JD, Karamichos D. Modeling the cornea in 3-dimensions: Current and future perspectives. Exp Eye Res 2020; 197:108127. [PMID: 32619578 PMCID: PMC8116933 DOI: 10.1016/j.exer.2020.108127] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2020] [Revised: 06/17/2020] [Accepted: 06/23/2020] [Indexed: 02/08/2023]
Abstract
The cornea is an avascular, transparent ocular tissue that serves as a refractive and protective structure for the eye. Over 90% of the cornea is composed of a collagenous-rich extracellular matrix within the stroma with the other 10% composed by the corneal epithelium and endothelium layers and their corresponding supporting collagen layers (e.g., Bowman's and Descemet's membranes) at the anterior and posterior cornea, respectively. Due to its prominent role in corneal structure, tissue engineering approaches to model the human cornea in vitro have focused heavily on the cellular and functional properties of the corneal stroma. In this review, we discuss model development in the context of culture dimensionality (e.g., 2-dimensional versus 3-dimensional) and expand on the optical, biomechanical, and cellular functions promoted by the culture microenvironment. We describe current methods to model the human cornea with focus on organotypic approaches, compressed collagen, bioprinting, and self-assembled stromal models. We also expand on co-culture applications with the inclusion of relevant corneal cell types, such as epithelial, stromal keratocyte or fibroblast, endothelial, and neuronal cells. Further advancements in corneal tissue model development will markedly improve our current understanding of corneal wound healing and regeneration.
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Affiliation(s)
- Tina B McKay
- Schepens Eye Research Institute of Massachusetts Eye and Ear, Department of Ophthalmology, Harvard Medical School, Boston, MA, 02114, USA
| | - Audrey E K Hutcheon
- Schepens Eye Research Institute of Massachusetts Eye and Ear, Department of Ophthalmology, Harvard Medical School, Boston, MA, 02114, USA
| | - Xiaoqing Guo
- Schepens Eye Research Institute of Massachusetts Eye and Ear, Department of Ophthalmology, Harvard Medical School, Boston, MA, 02114, USA
| | - James D Zieske
- Schepens Eye Research Institute of Massachusetts Eye and Ear, Department of Ophthalmology, Harvard Medical School, Boston, MA, 02114, USA
| | - Dimitrios Karamichos
- North Texas Eye Research Institute, University of North Texas Health Science Center, 3500 Camp Bowie Blvd, Fort Worth, TX, 76107, USA; Department of Pharmaceutical Sciences, University of North Texas Health Science Center, 3500 Camp Bowie Blvd, Fort Worth, TX, 76107, USA; Department of Pharmacology and Neuroscience, University of North Texas Health Science Center, 3500 Camp Bowie Blvd, Fort Worth, TX, 76107, USA.
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19
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Kang SM, Lee JH, Huh YS, Takayama S. Alginate Microencapsulation for Three-Dimensional In Vitro Cell Culture. ACS Biomater Sci Eng 2020; 7:2864-2879. [PMID: 34275299 DOI: 10.1021/acsbiomaterials.0c00457] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Advances in microscale 3D cell culture systems have helped to elucidate cellular physiology, understand mechanisms of stem cell differentiation, produce pathophysiological models, and reveal important cell-cell and cell-matrix interactions. An important consideration for such studies is the choice of material for encapsulating cells and associated extracellular matrix (ECM). This Review focuses on the use of alginate hydrogels, which are versatile owing to their simple gelation process following an ionic cross-linking mechanism in situ, with no need for procedures that can be potentially toxic to cells, such as heating, the use of solvents, and UV exposure. This Review aims to give some perspectives, particularly to researchers who typically work more with poly(dimethylsiloxane) (PDMS), on the use of alginate as an alternative material to construct microphysiological cell culture systems. More specifically, this Review describes how physicochemical characteristics of alginate hydrogels can be tuned with regards to their biocompatibility, porosity, mechanical strength, ligand presentation, and biodegradability. A number of cell culture applications are also described, and these are subcategorized according to whether the alginate material is used to homogeneously embed cells, to micropattern multiple cellular microenvironments, or to provide an outer shell that creates a space in the core for cells and other ECM components. The Review ends with perspectives on future challenges and opportunities for 3D cell culture applications.
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Affiliation(s)
- Sung-Min Kang
- Wallace H Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory School of Medicine, Atlanta, 30332, United States of America.,The Parker H Petit Institute of Bioengineering and Bioscience, Georgia Institute of Technology, Atlanta, 30332, United States of America.,NanoBio High-Tech Materials Research Center, Department of Biological Engineering, Inha University, 100 Inha-ro, Incheon, 22212, Republic of Korea
| | - Ji-Hoon Lee
- Wallace H Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory School of Medicine, Atlanta, 30332, United States of America.,The Parker H Petit Institute of Bioengineering and Bioscience, Georgia Institute of Technology, Atlanta, 30332, United States of America
| | - Yun Suk Huh
- NanoBio High-Tech Materials Research Center, Department of Biological Engineering, Inha University, 100 Inha-ro, Incheon, 22212, Republic of Korea
| | - Shuichi Takayama
- Wallace H Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory School of Medicine, Atlanta, 30332, United States of America.,The Parker H Petit Institute of Bioengineering and Bioscience, Georgia Institute of Technology, Atlanta, 30332, United States of America
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20
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Bhattacharjee P, Cavanagh BL, Ahearne M. Influence of micropatterned substrates on keratocyte phenotype. Sci Rep 2020; 10:6679. [PMID: 32317647 PMCID: PMC7174307 DOI: 10.1038/s41598-020-62640-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2019] [Accepted: 03/13/2020] [Indexed: 11/09/2022] Open
Abstract
Substrate topographic patterning is a powerful tool that can be used to manipulate cell shape and orientation. To gain a better understanding of the relationship between surface topography and keratocyte behavior, surface patterns consisting of linear aligned or orthogonally aligned microchannels were used. Photolithography and polymer molding techniques were used to fabricate micropatterns on the surface of polydimethylsiloxane (PDMS). Cells on linear aligned substrates were elongated and aligned in the channel direction, while cells on orthogonal substrates had a more spread morphology. Both linear and orthogonal topographies induced chromatin condensation and resulted in higher expressions of keratocyte specific genes and sulfated glycosaminoglycans (sGAG), compared with non-patterned substrates. However, despite differences in cell morphology and focal adhesions, many genes associated with a native keratocyte phenotype, such as keratocan and ALDH3A1, remain unchanged on the different patterned substrates. This information could be used to optimize substrates for keratocyte culture and to develop scaffolds for corneal regeneration.
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Affiliation(s)
- Promita Bhattacharjee
- Trinity Centre for Biomedical Engineering, Trinity Biomedical Sciences Institute, Trinity College Dublin, University of Dublin, Dublin, Ireland
- Department of Mechanical and Manufacturing Engineering, School of Engineering, Trinity College Dublin, University of Dublin, Dublin, Ireland
| | - Brenton L Cavanagh
- Cellular and Molecular Imaging Core, Royal College of Surgeons in Ireland, Dublin, Ireland
| | - Mark Ahearne
- Trinity Centre for Biomedical Engineering, Trinity Biomedical Sciences Institute, Trinity College Dublin, University of Dublin, Dublin, Ireland.
- Department of Mechanical and Manufacturing Engineering, School of Engineering, Trinity College Dublin, University of Dublin, Dublin, Ireland.
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21
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Xiong S, Gao H, Qin L, Jia YG, Ren L. Engineering topography: Effects on corneal cell behavior and integration into corneal tissue engineering. Bioact Mater 2019; 4:293-302. [PMID: 31709312 PMCID: PMC6829100 DOI: 10.1016/j.bioactmat.2019.10.001] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2019] [Revised: 08/23/2019] [Accepted: 10/07/2019] [Indexed: 12/13/2022] Open
Abstract
Cell-material interactions are important to tissue engineering. Inspired by the natural topographic structures on the extracellular matrix, a growing number of studies have integrated engineering topography into investigations of cell behavior on biomaterials. Engineering topography has a significant influence on cell behaviors. These cell-topography interactions play an important role in regenerative medicine and tissue engineering. Similarly, cell-topography interactions are important to corneal reconstruction and regeneration. In this review, we primarily summarized the effects of topographic cues on the behaviors of corneal cells, including cell morphology, adhesion, migration, and proliferation. Furthermore, the integration of engineering surface topography into corneal tissue engineering was also discussed.
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Affiliation(s)
- Sijia Xiong
- School of Materials Science and Engineering, South China University of Technology, Guangzhou, 510641, China
- National Engineering Research Centre for Tissue Restoration and Reconstruction, Guangzhou, 510006, China
| | - HuiChang Gao
- School of Medicine, South China University of Technology, Guangzhou, 510006, China
| | - Lanfeng Qin
- National Engineering Research Centre for Tissue Restoration and Reconstruction, Guangzhou, 510006, China
- School of Biology and Biological Engineering, South China University of Technology, Guangzhou, 510006, China
| | - Yong-Guang Jia
- School of Materials Science and Engineering, South China University of Technology, Guangzhou, 510641, China
- National Engineering Research Centre for Tissue Restoration and Reconstruction, Guangzhou, 510006, China
| | - Li Ren
- School of Materials Science and Engineering, South China University of Technology, Guangzhou, 510641, China
- National Engineering Research Centre for Tissue Restoration and Reconstruction, Guangzhou, 510006, China
- Sino-Singapore International Joint Research Institute, Guangzhou, 510555, China
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22
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Palchesko RN, Carrasquilla SD, Feinberg AW. Natural Biomaterials for Corneal Tissue Engineering, Repair, and Regeneration. Adv Healthc Mater 2018; 7:e1701434. [PMID: 29845780 DOI: 10.1002/adhm.201701434] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2017] [Revised: 03/01/2018] [Indexed: 12/13/2022]
Abstract
Corneal blindness is a major cause of vision loss, estimated to affect over 10 million people worldwide. Once impaired through clouding or shape change, the best treatment option for restoring vision is corneal transplantation using full or partial thickness cadaveric grafts. However, donor corneas are globally limited and face rejection and graft failure, similar to other transplanted organs. Thus, there is a need for viable alternatives to donor corneas in order to increase supply, reduce rejection, and to minimize variability in tissue quality. To address this, researchers have developed new materials and strategies to tissue engineer full or partial thickness cornea grafts in order to repair, regenerate, or replace the diseased cornea. This progress report first reviews the anatomy and physiology of the cornea to frame the biological requirements and discuss the injuries and diseases that necessitate the need fortransplantation, as well as the requirements for a suitable donor tissue alternative. This is followed by recent progress using naturally derived biomaterials including silk, collagen, amniotic membranes, and decellularized corneas. Finally, remaining challenges in the field as they relate to the biomaterials discussed are identified, and the future research directions that should result in further advances in restoring corneal vision are highlighted.
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Affiliation(s)
- Rachelle N. Palchesko
- Department of Biomedical Engineering; Carnegie Mellon University; Pittsburgh PA 15213 USA
- Louis J. Fox Center for Vision Restoration; University of Pittsburgh and UPMC; Pittsburgh PA 15213 USA
| | | | - Adam W. Feinberg
- Department of Biomedical Engineering; Carnegie Mellon University; Pittsburgh PA 15213 USA
- Louis J. Fox Center for Vision Restoration; University of Pittsburgh and UPMC; Pittsburgh PA 15213 USA
- Department of Materials Science and Engineering; Carnegie Mellon University; Pittsburgh PA 15213 USA
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23
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Chen Z, You J, Liu X, Cooper S, Hodge C, Sutton G, Crook JM, Wallace GG. Biomaterials for corneal bioengineering. ACTA ACUST UNITED AC 2018; 13:032002. [PMID: 29021411 DOI: 10.1088/1748-605x/aa92d2] [Citation(s) in RCA: 71] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Corneal transplantation is an important surgical treatment for many common corneal diseases. However, a worldwide shortage of tissue from suitable corneal donors has meant that many people are not able to receive sight-restoring operations. In addition, rejection is a major cause of corneal transplant failure. Bioengineering corneal tissue has recently gained widespread attention. In order to facilitate corneal regeneration, a range of materials is currently being investigated. The ideal substrate requires sufficient tectonic durability, biocompatibility with cultured cellular elements, transparency, and perhaps biodegradability and clinical compliance. This review considers the anatomy and function of the native cornea as a precursor to evaluating a variety of biomaterials for corneal regeneration including key characteristics for optimal material form and function. The integration of appropriate cells with the most appropriate biomaterials is also discussed. Taken together, the information provided offers insight into the requirements for fabricating synthetic and semisynthetic corneas for in vitro modeling of tissue development and disease, pharmaceutical screening, and in vivo application for regenerative medicine.
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Affiliation(s)
- Zhi Chen
- ARC Centre of Excellence for Electromaterials Science, Intelligent Polymer Research Institute, AIIM Facility, Innovation Campus, University of Wollongong, Squires Way, Fairy Meadow, New South Wales 2519, Australia
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24
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Chen J, Zhang W, Backman LJ, Kelk P, Danielson P. Mechanical stress potentiates the differentiation of periodontal ligament stem cells into keratocytes. Br J Ophthalmol 2018; 102:562-569. [PMID: 29306866 PMCID: PMC5890647 DOI: 10.1136/bjophthalmol-2017-311150] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2017] [Revised: 11/24/2017] [Accepted: 12/09/2017] [Indexed: 12/13/2022]
Abstract
Aims To explore the role of corneal-shaped static mechanical strain on the differentiation of human periodontal ligament stem cells (PDLSCs) into keratocytes and the possible synergistic effects of mechanics and inducing medium. Methods PDLSCs were exposed to 3% static dome-shaped mechanical strain in a Flexcell Tension System for 3 days and 7 days. Keratocyte phenotype was determined by gene expression of keratocyte markers. Keratocyte differentiation (inducing) medium was introduced in the Flexcell system, either continuously or intermittently combined with mechanical stimulation. The synergistic effects of mechanics and inducing medium on keratocyte differentiation was evaluated by gene and protein expression of keratocyte markers. Finally, a multilamellar cell sheet was assembled by seeding PDLSCs on a collagen membrane and inducing keratocyte differentiation. The transparency of the cell sheet was assessed, and typical markers of native human corneal stroma were evaluated by immunofluorescence staining. Results Dome-shaped mechanical stimulation promoted PDLSCs to differentiate into keratocytes, as shown by the upregulation of ALDH3A1, CD34, LUM, COL I and COL V. The expression of integrins were also upregulated after mechanical stimulation, including integrin alpha 1, alpha 2, beta 1 and non-muscle myosin II B. A synergistic effect of mechanics and inducing medium was found on keratocyte differentiation. The cell sheets were assembled under the treatment of mechanics and inducing medium simultaneously. The cell sheets were transparent, multilamellar and expressed typical markers of corneal stroma. Conclusion Dome-shaped mechanical stimulation promotes differentiation of PDLSCs into keratocytes and has synergistic effects with inducing medium. Multilamellar cell sheets that resemble native human corneal stroma show potential for future clinical applications.
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Affiliation(s)
- Jialin Chen
- Department of Integrative Medical Biology, Umeå University, Umeå, Sweden
| | - Wei Zhang
- Department of Integrative Medical Biology, Umeå University, Umeå, Sweden
| | - Ludvig J Backman
- Department of Integrative Medical Biology, Umeå University, Umeå, Sweden
| | - Peyman Kelk
- Department of Integrative Medical Biology, Umeå University, Umeå, Sweden
| | - Patrik Danielson
- Department of Integrative Medical Biology, Umeå University, Umeå, Sweden.,Unit of Ophthalmology, Department of Clinical Sciences, Umeå University, Umeå, Sweden
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25
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Park J, Wetzel I, Dréau D, Cho H. 3D Miniaturization of Human Organs for Drug Discovery. Adv Healthc Mater 2018; 7. [PMID: 28885786 DOI: 10.1002/adhm.201700551] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2017] [Revised: 07/14/2017] [Indexed: 12/15/2022]
Abstract
"Engineered human organs" hold promises for predicting the effectiveness and accuracy of drug responses while reducing cost, time, and failure rates in clinical trials. Multiorgan human models utilize many aspects of currently available technologies including self-organized spherical 3D human organoids, microfabricated 3D human organ chips, and 3D bioprinted human organ constructs to mimic key structural and functional properties of human organs. They enable precise control of multicellular activities, extracellular matrix (ECM) compositions, spatial distributions of cells, architectural organizations of ECM, and environmental cues. Thus, engineered human organs can provide the microstructures and biological functions of target organs and advantageously substitute multiscaled drug-testing platforms including the current in vitro molecular assays, cell platforms, and in vivo models. This review provides an overview of advanced innovative designs based on the three main technologies used for organ construction leading to single and multiorgan systems useable for drug development. Current technological challenges and future perspectives are also discussed.
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Affiliation(s)
- Joseph Park
- Department of Mechanical Engineering and Engineering Science; Department of Biological Sciences; The Nanoscale Science Program; Center for Biomedical Engineering and Science; UNC Charlotte; 9201 University City Blvd Charlotte NC 28223 USA
| | - Isaac Wetzel
- Department of Mechanical Engineering and Engineering Science; Department of Biological Sciences; The Nanoscale Science Program; Center for Biomedical Engineering and Science; UNC Charlotte; 9201 University City Blvd Charlotte NC 28223 USA
| | - Didier Dréau
- Department of Mechanical Engineering and Engineering Science; Department of Biological Sciences; The Nanoscale Science Program; Center for Biomedical Engineering and Science; UNC Charlotte; 9201 University City Blvd Charlotte NC 28223 USA
| | - Hansang Cho
- Department of Mechanical Engineering and Engineering Science; Department of Biological Sciences; The Nanoscale Science Program; Center for Biomedical Engineering and Science; UNC Charlotte; 9201 University City Blvd Charlotte NC 28223 USA
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Chen J, Zhang W, Kelk P, Backman LJ, Danielson P. Substance P and patterned silk biomaterial stimulate periodontal ligament stem cells to form corneal stroma in a bioengineered three-dimensional model. Stem Cell Res Ther 2017; 8:260. [PMID: 29132420 PMCID: PMC5683543 DOI: 10.1186/s13287-017-0715-y] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2017] [Revised: 10/16/2017] [Accepted: 10/26/2017] [Indexed: 12/13/2022] Open
Abstract
Background We aimed to generate a bioengineered multi-lamellar human corneal stroma tissue in vitro by differentiating periodontal ligament stem cells (PDLSCs) towards keratocytes on an aligned silk membrane. Methods Human PDLSCs were isolated and identified. The neuropeptide substance P (SP) was added in keratocyte differentiation medium (KDM) to evaluate its effect on keratocyte differentiation of PDLSCs. PDLSCs were then seeded on patterned silk membrane and cultured with KDM and SP. Cell alignment was evaluated and the expression of extracellular matrix (ECM) components of corneal stroma was detected. Finally, multi-lamellar tissue was constructed in vitro by PDLSCs seeded on patterned silk membranes, which were stacked orthogonally and stimulated by KDM supplemented with SP for 18 days. Sections were prepared and subsequently stained with hematoxylin and eosin or antibodies for immunofluorescence observation of human corneal stroma-related proteins. Results SP promoted the expression of corneal stroma-related collagens (collagen types I, III, V, and VI) during the differentiation induced by KDM. Patterned silk membrane guided cell alignment of PDLSCs, and important ECM components of the corneal stroma were shown to be deposited by the cells. The constructed multi-lamellar tissue was found to support cells growing between every two layers and expressing the main type of collagens (collagen types I and V) and proteoglycans (lumican and keratocan) of normal human corneal stroma. Conclusions Multi-lamellar human corneal stroma-like tissue can be constructed successfully in vitro by PDLSCs seeded on orthogonally aligned, multi-layered silk membranes with SP supplementation, which shows potential for future corneal tissue engineering. Electronic supplementary material The online version of this article (doi:10.1186/s13287-017-0715-y) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Jialin Chen
- Department of Integrative Medical Biology, Anatomy, Umeå University, SE-901 87, Umeå, Sweden
| | - Wei Zhang
- Department of Integrative Medical Biology, Anatomy, Umeå University, SE-901 87, Umeå, Sweden
| | - Peyman Kelk
- Department of Integrative Medical Biology, Anatomy, Umeå University, SE-901 87, Umeå, Sweden
| | - Ludvig J Backman
- Department of Integrative Medical Biology, Anatomy, Umeå University, SE-901 87, Umeå, Sweden.,Department of Community Medicine and Rehabilitation, Physiotherapy, Umeå University, Umeå, Sweden
| | - Patrik Danielson
- Department of Integrative Medical Biology, Anatomy, Umeå University, SE-901 87, Umeå, Sweden. .,Department of Clinical Sciences, Ophthalmology, Umeå University, Umeå, Sweden.
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Zhang W, Li Y, Jiang D, Xie S, Zeng M, Chen J, Chen L, Ouyang H, Zou X. Promotion of Hernia Repair with High-Strength, Flexible, and Bioresorbable Silk Fibroin Mesh in a Large Abdominal Hernia Model. ACS Biomater Sci Eng 2017; 4:2067-2080. [DOI: 10.1021/acsbiomaterials.7b00666] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Wei Zhang
- Clinical Research Center, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310003, China
- Dr. Li Dak Sum & Yip Yio Chin Center for Stem Cell and Tissue Engineering, School of Medicine, Zhejiang University, Hangzhou 310058, China
| | - Yu Li
- Clinical Research Center, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310003, China
- Dr. Li Dak Sum & Yip Yio Chin Center for Stem Cell and Tissue Engineering, School of Medicine, Zhejiang University, Hangzhou 310058, China
| | - Deming Jiang
- Clinical Research Center, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310003, China
- Dr. Li Dak Sum & Yip Yio Chin Center for Stem Cell and Tissue Engineering, School of Medicine, Zhejiang University, Hangzhou 310058, China
| | - Shujun Xie
- Zhejiang Provincial
Key Research Institute of Medical Materials and Tissue Engineering, Hangzhou 310000, China
| | - Mengfeng Zeng
- Zhejiang Provincial
Key Research Institute of Medical Materials and Tissue Engineering, Hangzhou 310000, China
| | - Jialin Chen
- Dr. Li Dak Sum & Yip Yio Chin Center for Stem Cell and Tissue Engineering, School of Medicine, Zhejiang University, Hangzhou 310058, China
| | - Longkun Chen
- Zhejiang Provincial
Key Research Institute of Medical Materials and Tissue Engineering, Hangzhou 310000, China
| | - Hongwei Ouyang
- Dr. Li Dak Sum & Yip Yio Chin Center for Stem Cell and Tissue Engineering, School of Medicine, Zhejiang University, Hangzhou 310058, China
| | - Xiaohui Zou
- Clinical Research Center, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310003, China
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28
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Gouveia RM, Koudouna E, Jester J, Figueiredo F, Connon CJ. Template Curvature Influences Cell Alignment to Create Improved Human Corneal Tissue Equivalents. ACTA ACUST UNITED AC 2017; 1:e1700135. [DOI: 10.1002/adbi.201700135] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2017] [Revised: 08/30/2017] [Indexed: 12/28/2022]
Affiliation(s)
- Ricardo M. Gouveia
- Institute of Genetic Medicine; Newcastle University; Newcastle upon Tyne NE1 3BZ UK
| | - Elena Koudouna
- Gavin Herbert Eye Institute; University of California Irvine; Irvine CA 92697 USA
- Structural Biophysics Research Group; School of Optometry and Vision Sciences; Cardiff University; Cardiff CF24 4HQ Wales UK
| | - James Jester
- Gavin Herbert Eye Institute; University of California Irvine; Irvine CA 92697 USA
| | - Francisco Figueiredo
- Institute of Genetic Medicine; Newcastle University; Newcastle upon Tyne NE1 3BZ UK
- Department of Ophthalmology; Royal Victoria Infirmary; Newcastle upon Tyne NE1 4LP UK
| | - Che J. Connon
- Institute of Genetic Medicine; Newcastle University; Newcastle upon Tyne NE1 3BZ UK
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29
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Zhang W, Chen L, Chen J, Wang L, Gui X, Ran J, Xu G, Zhao H, Zeng M, Ji J, Qian L, Zhou J, Ouyang H, Zou X. Silk Fibroin Biomaterial Shows Safe and Effective Wound Healing in Animal Models and a Randomized Controlled Clinical Trial. Adv Healthc Mater 2017; 6. [PMID: 28337854 DOI: 10.1002/adhm.201700121] [Citation(s) in RCA: 110] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2017] [Revised: 02/20/2017] [Indexed: 01/07/2023]
Abstract
Due to its excellent biological and mechanical properties, silk fibroin has been intensively explored for tissue engineering and regenerative medicine applications. However, lack of translational evidence has hampered its clinical application for tissue repair. Here a silk fibroin film is developed and its translational potential is investigated for skin repair by performing comprehensive preclinical and clinical studies to fully evaluate its safety and effectiveness. The silk fibroin film fabricated using all green chemistry approaches demonstrates remarkable characteristics, including transmittance, fluid handling capacity, moisture vapor permeability, waterproofness, bacterial barrier properties, and biocompatibility. In vivo rabbit full-thickness skin defect study shows that the silk fibroin film effectively reduces the average wound healing time with better skin regeneration compared with the commercial wound dressings. Subsequent assessment in porcine model confirms its long-term safety and effectiveness for full-thickness skin defects. Finally, a randomized single-blind parallel controlled clinical trial with 71 patients shows that the silk fibroin film significantly reduces the time to wound healing and incidence of adverse events compared to commercial dressing. Therefore, the study provides systematic preclinical and clinical evidence that the silk fibroin film promotes wound healing thereby establishing a foundation towards its application for skin repair and regeneration in the clinic.
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Affiliation(s)
- Wei Zhang
- Li Dak Sum & Yip Yio Chin Center for Stem Cells and Regenerative Medicine; School of Medicine; Zhejiang University; Hangzhou 310058 China
| | - Longkun Chen
- Zhejiang Provincial Key Research Institute of Medical Materials and Tissue Engineering; Hangzhou 310000 China
| | - Jialin Chen
- Li Dak Sum & Yip Yio Chin Center for Stem Cells and Regenerative Medicine; School of Medicine; Zhejiang University; Hangzhou 310058 China
| | - Lingshuang Wang
- Zhejiang Provincial Key Research Institute of Medical Materials and Tissue Engineering; Hangzhou 310000 China
| | - Xuexian Gui
- Zhejiang Provincial Key Research Institute of Medical Materials and Tissue Engineering; Hangzhou 310000 China
| | - Jisheng Ran
- Department of Orthopaedics; The Second Affiliated Hospital; Zhejiang University; Hangzhou 310052 China
| | - Guowei Xu
- Zhejiang Provincial Key Research Institute of Medical Materials and Tissue Engineering; Hangzhou 310000 China
| | - Hongshi Zhao
- Zhejiang Provincial Key Research Institute of Medical Materials and Tissue Engineering; Hangzhou 310000 China
| | - Mengfeng Zeng
- Zhejiang Provincial Key Research Institute of Medical Materials and Tissue Engineering; Hangzhou 310000 China
| | - Junfeng Ji
- Li Dak Sum & Yip Yio Chin Center for Stem Cells and Regenerative Medicine; School of Medicine; Zhejiang University; Hangzhou 310058 China
| | - Li Qian
- Department of Burn and Plastic Surgery; The Second Xiangya Hospital; Central South University; Changsha 410011 China
| | - Jianda Zhou
- Department of Burn and Plastic Surgery; The Third Xiangya Hospital; Central South University; Changsha 410083 China
| | - Hongwei Ouyang
- Li Dak Sum & Yip Yio Chin Center for Stem Cells and Regenerative Medicine; School of Medicine; Zhejiang University; Hangzhou 310058 China
| | - Xiaohui Zou
- Clinical Research Center; The First Affiliated Hospital; School of Medicine; Zhejiang University; Hangzhou 310003 China
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