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Duan B, Xu C, Das S, Chen JM, Butcher JT. Spatial Regulation of Valve Interstitial Cell Phenotypes within Three-Dimensional Micropatterned Hydrogels. ACS Biomater Sci Eng 2019; 5:1416-1425. [PMID: 33405617 PMCID: PMC10951959 DOI: 10.1021/acsbiomaterials.8b01280] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Calcific aortic valve disease (CAVD) is the third leading cause of cardiovascular disease. CAVD exhibits progressive disruption of the normally highly organized and aligned extracellular matrix (ECM) structure within the valve leaflets simultaneously with myofibroblastic and/or osteogenic differentiation of indigenous endogenous valve interstitial cells (VIC). It is unclear how the alignment of VIC within their 3D microenvironment drives VIC phenotype or how alignment affects cellular responses to biochemical cues in physiological or pathological conditions. In this study, we implement a photolithographic technique to control the alignment and elongation of both normal and diseased human aortic VIC (HAVIC) within microengineered 3D hydrogels consisting of methacrylated hyaluronic acid and methacrylated gelatin. Stripe micropatterning created distinct alignment of HAVIC within a 3D culture system, which promoted spreading and enhanced their activation and osteogenic differentiation in pro-osteogenic conditions. HAVIC from a patient with CAVD exhibited greater susceptibility to myofibroblastic and osteogenic differentiation in culture. The roles of conjugated basic fibroblastic growth factor (bFGF) and RhoA/ROCK pathway in regulating HAVIC phenotypes were also investigated in the presence of aligned microtopography. The addition of bFGF was preventative to osteogenic differentiation for healthy HAVIC; however, it promoted osteogenic differentiation in diseased HAVIC. Inhibition of the ROCK pathway only decreased osteogenic differentiation for diseased HAVIC in the aligned formation. Collectively, these results improve our knowledge of the effects that VIC alignment has on VIC phenotypes and valve disease progression. The cell culture platform also enables a better understanding of the interplay between topography, biochemical cues, and VIC differentiation and provides information useful for directing differentiation as well as valve tissue regeneration.
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Affiliation(s)
- Bin Duan
- Meinig School of Biomedical Engineering, Cornell University, Ithaca, NY, USA
- Mary & Dick Holland Regenerative Medicine Program, University of Nebraska Medical Center, Omaha, NE, USA
| | - Charlie Xu
- Meinig School of Biomedical Engineering, Cornell University, Ithaca, NY, USA
| | - Shoshana Das
- Meinig School of Biomedical Engineering, Cornell University, Ithaca, NY, USA
| | - Jonathan M. Chen
- Department of Cardiac Surgery, Seattle Children’s Hospital, Seattle WA, USA
| | - Jonathan T. Butcher
- Meinig School of Biomedical Engineering, Cornell University, Ithaca, NY, USA
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102
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Devising micro/nano-architectures in multi-channel nerve conduits towards a pro-regenerative matrix for the repair of spinal cord injury. Acta Biomater 2019; 86:194-206. [PMID: 30586646 DOI: 10.1016/j.actbio.2018.12.032] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2018] [Revised: 12/20/2018] [Accepted: 12/21/2018] [Indexed: 11/23/2022]
Abstract
Multi-channel nerve conduits have shown significant advantages in guidance of axonal growth and functional restoration after spinal cord injury (SCI). It was realized that the micro/nano-architectures of these implanted conduits can effectively tune the lesion-induced biological responses, including inflammation and scar formation. In this work, two PLLA multi-channel conduits were fabricated with ladder-like porous channel wall (labelled as LNCs) and nano-fibrous channel wall (labelled as NNCs), respectively, and transferred into complete spinal cord transected injury model in rats. The implantation of such two scaffolds significantly alleviated the infiltration of macrophages/microglia and accumulation of astrocyte and collagen scar, especially in the NNCs group. Meanwhile, recruitment of endogenous stem cells and axonal growth was observed in both of the multi-channel conduits. Compared to the LNCs, the extracellular matrix (ECM) - mimicry nanostructures in the NNCs promoted directional nerve fiber growth within the channels. Moreover, a relatively denser nano-architecture in the channel wall confined the nerve fiber extension within the channels. These results from in vivo evaluations suggested that the NNCs implants possess a great potential in future application for SCI treatment and nerve regeneration. STATEMENTS OF SIGNIFICANCE: The implantation of biocompatible and degradable polymeric scaffolds holds great potential in clinical treatment and tissue regeneration after spinal cord injury (SCI). In this work, the ladder-like nerve conduits (LNCs) and nano-fibrous nerve conduits (NNCs) were fabricated and implanted into completely spinal cord transected rats, respectively. In vivo characteristics showed significant reduction in post-injury inflammation and scar formation, with elevated nerve stem cells (NSCs) recruitment and nerve fiber growth, hence both conduits resulted in significant functional restoration after implantation. Remarkably, we noticed that not only the multi-channels in the conduits can guide nerve fiber regeneration, their micro-/nano-structured walls also played a critical role in modulating the post-implantation biological responses.
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103
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Sawicki LA, Ovadia EM, Pradhan L, Cowart JE, Ross KE, Wu CH, Kloxin AM. Tunable synthetic extracellular matrices to investigate breast cancer response to biophysical and biochemical cues. APL Bioeng 2019; 3:016101. [PMID: 31069334 PMCID: PMC6481819 DOI: 10.1063/1.5064596] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2018] [Accepted: 01/15/2019] [Indexed: 01/28/2023] Open
Abstract
The extracellular matrix (ECM) is thought to play a critical role in the progression of breast cancer. In this work, we have designed a photopolymerizable, biomimetic synthetic matrix for the controlled, 3D culture of breast cancer cells and, in combination with imaging and bioinformatics tools, utilized this system to investigate the breast cancer cell response to different matrix cues. Specifically, hydrogel-based matrices of different densities and modified with receptor-binding peptides derived from ECM proteins [fibronectin/vitronectin (RGDS), collagen (GFOGER), and laminin (IKVAV)] were synthesized to mimic key aspects of the ECM of different soft tissue sites. To assess the breast cancer cell response, the morphology and growth of breast cancer cells (MDA-MB-231 and T47D) were monitored in three dimensions over time, and differences in their transcriptome were assayed using next generation sequencing. We observed increased growth in response to GFOGER and RGDS, whether individually or in combination with IKVAV, where binding of integrin β1 was key. Importantly, in matrices with GFOGER, increased growth was observed with increasing matrix density for MDA-MB-231s. Further, transcriptomic analyses revealed increased gene expression and enrichment of biological processes associated with cell-matrix interactions, proliferation, and motility in matrices rich in GFOGER relative to IKVAV. In sum, a new approach for investigating breast cancer cell-matrix interactions was established with insights into how microenvironments rich in collagen promote breast cancer growth, a hallmark of disease progression in vivo, with opportunities for future investigations that harness the multidimensional property control afforded by this photopolymerizable system.
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Affiliation(s)
- Lisa A. Sawicki
- Department of Chemical and Biomolecular Engineering, University of Delaware, Newark, Delaware 19716, USA
| | - Elisa M. Ovadia
- Department of Chemical and Biomolecular Engineering, University of Delaware, Newark, Delaware 19716, USA
| | - Lina Pradhan
- Department of Chemical and Biomolecular Engineering, University of Delaware, Newark, Delaware 19716, USA
| | - Julie E. Cowart
- Center for Bioinformatics and Computational Biology, University of Delaware, Newark, Delaware 19711, USA
| | - Karen E. Ross
- Department of Biochemistry and Molecular and Cellular Biology, Georgetown University Medical Center, Washington, DC 20057, USA
| | - Cathy H. Wu
- Center for Bioinformatics and Computational Biology, University of Delaware, Newark, Delaware 19711, USA
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104
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Walden G, Liao X, Riley G, Donell S, Raxworthy MJ, Saeed A. Synthesis and Fabrication of Surface-Active Microparticles Using a Membrane Emulsion Technique and Conjugation of Model Protein via Strain-Promoted Azide–Alkyne Click Chemistry in Physiological Conditions. Bioconjug Chem 2019; 30:531-535. [DOI: 10.1021/acs.bioconjchem.8b00868] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Grace Walden
- School of Pharmacy, University of East Anglia, Norwich NR4 7TJ, United Kingdom
| | - Xin Liao
- School of Pharmacy, University of East Anglia, Norwich NR4 7TJ, United Kingdom
| | - Graham Riley
- School of Biological Sciences, University of East Anglia, Norwich NR4 7TJ, United Kingdom
| | - Simon Donell
- Norwich Medical School, University of East Anglia, Norwich NR4 7TJ, United Kingdom
| | | | - Aram Saeed
- School of Pharmacy, University of East Anglia, Norwich NR4 7TJ, United Kingdom
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105
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Rethinking Regenerative Medicine From a Transplant Perspective (and Vice Versa). Transplantation 2019; 103:237-249. [DOI: 10.1097/tp.0000000000002370] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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106
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Yan Y, Cheng B, Chen K, Cui W, Qi J, Li X, Deng L. Enhanced Osteogenesis of Bone Marrow-Derived Mesenchymal Stem Cells by a Functionalized Silk Fibroin Hydrogel for Bone Defect Repair. Adv Healthc Mater 2019; 8:e1801043. [PMID: 30485718 DOI: 10.1002/adhm.201801043] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2018] [Revised: 11/05/2018] [Indexed: 12/25/2022]
Abstract
Silk fibroin (SF) from Bombyx mori is a promising natural material for the synthesis of biocompatible and biodegradable hydrogels for use in biomedical applications from tissue engineering to drug delivery. However, weak gelation performance and the lack of biochemical cues to trigger cell proliferation and differentiation currently significantly limit its application in these areas. Herein, a biofunctional hydrogel containing SF (2.0%) and a small peptide gelator (e.g., NapFFRGD = 1.0 wt%) is generated via cooperative molecular self-assembly. The introduction of NapFFRGD to SF is shown to significantly improve its gelation properties by lowering both its threshold gelation concentration to 2.0% and gelation time to 20 min under physiological conditions (pH = 7.4, 37 °C), as well as functionalizing the SF hydrogel with cell-adhesive motifs (e.g., RGD). Besides mediating cell adhesion, the RGD ligands incorporated within the SF-RGD gel promote the osteogenic differentiation of bone marrow-derived mesenchymal stem cells encapsulated within the gel matrix, leading to bone regeneration in a mouse calvarial defect model, compared with a blank SF gel (2.0%, pH = 7.4). This work suggests that SF could be easily tailored with bioactive peptide gelators to afford bioactive hydrogels with favorable microenvironments for tissue regeneration applications.
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Affiliation(s)
- Yufei Yan
- Shanghai Key Laboratory for Bone and Joint Diseases; Shanghai Institute of Orthopaedics and Traumatology; Shanghai Ruijin Hospital; Shanghai Jiaotong University; Shanghai 200025 China
| | - Baochang Cheng
- College of Chemistry; Chemical Engineering and Materials Science; Soochow University; Suzhou 215123 China
| | - Kaizhe Chen
- Shanghai Key Laboratory for Bone and Joint Diseases; Shanghai Institute of Orthopaedics and Traumatology; Shanghai Ruijin Hospital; Shanghai Jiaotong University; Shanghai 200025 China
| | - Wenguo Cui
- Shanghai Key Laboratory for Bone and Joint Diseases; Shanghai Institute of Orthopaedics and Traumatology; Shanghai Ruijin Hospital; Shanghai Jiaotong University; Shanghai 200025 China
| | - Jin Qi
- Shanghai Key Laboratory for Bone and Joint Diseases; Shanghai Institute of Orthopaedics and Traumatology; Shanghai Ruijin Hospital; Shanghai Jiaotong University; Shanghai 200025 China
| | - Xinming Li
- College of Chemistry; Chemical Engineering and Materials Science; Soochow University; Suzhou 215123 China
| | - Lianfu Deng
- Shanghai Key Laboratory for Bone and Joint Diseases; Shanghai Institute of Orthopaedics and Traumatology; Shanghai Ruijin Hospital; Shanghai Jiaotong University; Shanghai 200025 China
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107
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Nakaji-Hirabayashi T, Fujimoto K, Yoshikawa C, Kitano H. Functional surfaces for efficient differentiation of neural stem/progenitor cells into dopaminergic neurons. J Biomed Mater Res A 2019; 107:860-871. [DOI: 10.1002/jbm.a.36602] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2018] [Revised: 12/11/2018] [Accepted: 12/26/2018] [Indexed: 01/17/2023]
Affiliation(s)
- Tadashi Nakaji-Hirabayashi
- Department of Applied Chemistry; Graduate School of Science and Engineering, University of Toyama; Toyama Japan
- Department of Advanced Nanosciences and Biosciences; Graduate School of Innovative Life Sciences, University of Toyama; Toyama Japan
- International Center for Materials Nanoarchitectonics; National Institute for Material Science; Ibaraki Japan
| | - Kurumi Fujimoto
- Department of Applied Chemistry; Graduate School of Science and Engineering, University of Toyama; Toyama Japan
| | - Chiaki Yoshikawa
- International Center for Materials Nanoarchitectonics; National Institute for Material Science; Ibaraki Japan
| | - Hiromi Kitano
- R & D and Head Office, Institute for Polymer-Water Interfaces; Toyama Japan
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108
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Subbiah R, Guldberg RE. Materials Science and Design Principles of Growth Factor Delivery Systems in Tissue Engineering and Regenerative Medicine. Adv Healthc Mater 2019; 8:e1801000. [PMID: 30398700 DOI: 10.1002/adhm.201801000] [Citation(s) in RCA: 111] [Impact Index Per Article: 22.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2018] [Revised: 09/13/2018] [Indexed: 01/22/2023]
Abstract
Growth factors (GFs) are signaling molecules that direct cell development by providing biochemical cues for stem cell proliferation, migration, and differentiation. GFs play a key role in tissue regeneration, but one major limitation of GF-based therapies is dosage-related adverse effects. Additionally, the clinical applications and efficacy of GFs are significantly affected by the efficiency of delivery systems and other pharmacokinetic factors. Hence, it is crucial to design delivery systems that provide optimal activity, stability, and tunable delivery for GFs. Understanding the physicochemical properties of the GFs and the biomaterials utilized for the development of biomimetic GF delivery systems is critical for GF-based regeneration. Many different delivery systems have been developed to achieve tunable delivery kinetics for single or multiple GFs. The identification of ideal biomaterials with tunable properties for spatiotemporal delivery of GFs is still challenging. This review characterizes the types, properties, and functions of GFs, the materials science of widely used biomaterials, and various GF loading strategies to comprehensively summarize the current delivery systems for tunable spatiotemporal delivery of GFs aimed for tissue regeneration applications. This review concludes by discussing fundamental design principles for GF delivery vehicles based on the interactive physicochemical properties of the proteins and biomaterials.
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Affiliation(s)
- Ramesh Subbiah
- Parker H. Petit Institute for Bioengineering and Bioscience; George W. Woodruff School of Mechanical Engineering; Georgia Institute of Technology; Atlanta GA 30332 USA
| | - Robert E. Guldberg
- Parker H. Petit Institute for Bioengineering and Bioscience; George W. Woodruff School of Mechanical Engineering; Georgia Institute of Technology; Atlanta GA 30332 USA
- Phil and Penny Knight Campus for Accelerating Scientific Impact; 6231 University of Oregon; Eugene OR 97403 USA
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109
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Vermeulen S, Vasilevich A, Tsiapalis D, Roumans N, Vroemen P, Beijer NRM, Dede Eren A, Zeugolis D, de Boer J. Identification of topographical architectures supporting the phenotype of rat tenocytes. Acta Biomater 2019; 83:277-290. [PMID: 30394345 DOI: 10.1016/j.actbio.2018.10.041] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2018] [Revised: 09/22/2018] [Accepted: 10/25/2018] [Indexed: 01/01/2023]
Abstract
Tenocytes, the main cell type of the tendon, require mechanical stimuli for their proper function. When the tenocyte environment changes due to tissue damage or by transferring tenocytes from their native environment into cell culture, the signals from the tenocyte niche are lost, leading towards a decline of phenotypic markers. It is known that micro-topographies can influence cell fate by the physical cues they provide. To identify the optimal topography-induced biomechanical niche in vitro, we seeded tenocytes on the TopoChip, a micro-topographical screening platform, and measured expression of the tendon transcription factor Scleraxis. Through machine learning algorithms, we associated elevated Scleraxis levels with topological design parameters. Fabricating micro-topographies with optimal surface characteristics on larger surfaces allowed finding an improved expression of multiple tenogenic markers. However, long-term confluent culture conditions coincided with osteogenic marker expression and the loss of morphological characteristics. In contrast, passaging tenocytes which migrated from the tendon directly on the topography resulted in prolonged elongated morphology and elevated Scleraxis levels. This research provides new insights into how micro-topographies influence tenocyte cell fate, and supports the notion that micro-topographical design can be implemented in a new generation of tissue culture platforms for supporting the phenotype of tenocytes. STATEMENT OF SIGNIFICANCE: The challenge in controlling in vitro cell behavior lies in controlling the complex culture environment. Here, we present for the first time the use of micro-topographies as a biomechanical niche to support the phenotype of tenocytes. For this, we applied the TopoChip platform, a screening tool with 2176 unique micro-topographies for identifying feature characteristics associated with elevated Scleraxis expression, a tendon related marker. Large area fabrication of micro-topographies with favorable characteristics allowed us to find a beneficial influence on other tenogenic markers as well. Furthermore, passaging cells is more beneficial for Scleraxis marker expression and tenocyte morphology compared to confluent conditions. This study presents important insights for the understanding of tenocyte behavior in vitro, a necessary step towards tendon engineering.
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Affiliation(s)
- Steven Vermeulen
- Laboratory for Cell Biology-Inspired Tissue Engineering, MERLN Institute, University of Maastricht, Maastricht, The Netherlands
| | - Aliaksei Vasilevich
- Laboratory for Cell Biology-Inspired Tissue Engineering, MERLN Institute, University of Maastricht, Maastricht, The Netherlands
| | - Dimitrios Tsiapalis
- Regenerative, Modular & Developmental Engineering Laboratory, National University of Ireland Galway, Galway, Ireland; Science Foundation Ireland, Centre for Research in Medical Device, National University of Ireland Galway, Galway, Ireland
| | - Nadia Roumans
- Laboratory for Cell Biology-Inspired Tissue Engineering, MERLN Institute, University of Maastricht, Maastricht, The Netherlands
| | - Pascal Vroemen
- Laboratory for Cell Biology-Inspired Tissue Engineering, MERLN Institute, University of Maastricht, Maastricht, The Netherlands; University Eye Clinic Maastricht UMC+, Maastricht University Medical Centre+, Maastricht, The Netherlands
| | - Nick R M Beijer
- Laboratory for Cell Biology-Inspired Tissue Engineering, MERLN Institute, University of Maastricht, Maastricht, The Netherlands
| | - Aysegul Dede Eren
- Laboratory for Cell Biology-Inspired Tissue Engineering, MERLN Institute, University of Maastricht, Maastricht, The Netherlands
| | - Dimitrios Zeugolis
- Regenerative, Modular & Developmental Engineering Laboratory, National University of Ireland Galway, Galway, Ireland; Science Foundation Ireland, Centre for Research in Medical Device, National University of Ireland Galway, Galway, Ireland
| | - Jan de Boer
- Laboratory for Cell Biology-Inspired Tissue Engineering, MERLN Institute, University of Maastricht, Maastricht, The Netherlands; Dept. of Biomedical Engineering, Eindhoven University of Technology, Eindhoven, The Netherlands.
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110
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Bi X, Maturavongsadit P, Tan Y, Watts M, Bi E, Kegley Z, Morton S, Lu L, Wang Q, Liang A. Polyamidoamine dendrimer-PEG hydrogel and its mechanical property on differentiation of mesenchymal stem cells. Biomed Mater Eng 2018; 30:111-123. [PMID: 30562893 DOI: 10.3233/bme-181037] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
BACKGROUND Biocompatible hydrogel systems with tunable mechanical properties have been reported to influence the behavior and differentiation of mesenchymal stem cells (MSCs). OBJECTIVE To develop a functionalized hydrogel system with well-defined chemical structures and tunable mechanical property for regulation of stem cell differentiation. METHODS An in situ-forming hydrogel system is developed by crosslinking vinyl sulfone functionalized polyamidoamine (PAMAM) dendrimer and multi-armed thiolated polyethylene glycol (PEG) through a thiol-ene Michael addition in aqueous conditions. The viability and differentiation of MSCs in hydrogels of different stiffness are conducted for 21 days under corresponding induction media. RESULTS MSCs are viable in synthesized hydrogels after 48 hours of culture. By varying the concentrations of PAMAM dendrimer and PEG, hydrogels of different gelation time and stiffness are achieved. The MSC differentiation indicates that more osteogenic differentiation is observed in hard gel (5,663 Pa) and more adipogenic differentiation is observed in soft gel (77 Pa) in addition to the differentiation caused by each individual induction media during the process of culture. CONCLUSIONS A biocompatible in situ-forming hydrogel system is successfully synthesized. This hydrogel system has shown influences on differentiation of MSCs and may potentially be important in developing therapeutic strategies in medical applications.
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Affiliation(s)
- Xiangdong Bi
- Department of Physical Sciences, Charleston Southern University, Charleston, South Carolina, USA
| | - Panita Maturavongsadit
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, South Carolina, USA
| | - Yu Tan
- Department of Bioengineering, Clemson University, Clemson, South Carolina, USA
| | - Morgan Watts
- Department of Physical Sciences, Charleston Southern University, Charleston, South Carolina, USA
| | - Evelyn Bi
- Academic Magnet High School, Charleston, South Carolina, USA
| | - Zachary Kegley
- Department of Physical Sciences, Charleston Southern University, Charleston, South Carolina, USA
| | - Steve Morton
- Research Oceanographer National Ocean Service, Charleston, South Carolina, USA
| | - Lin Lu
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, South Carolina, USA
| | - Qian Wang
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, South Carolina, USA
| | - Aiye Liang
- Department of Physical Sciences, Charleston Southern University, Charleston, South Carolina, USA
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111
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Kwon SG, Kwon YW, Lee TW, Park GT, Kim JH. Recent advances in stem cell therapeutics and tissue engineering strategies. Biomater Res 2018; 22:36. [PMID: 30598836 PMCID: PMC6299977 DOI: 10.1186/s40824-018-0148-4] [Citation(s) in RCA: 100] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2018] [Accepted: 12/07/2018] [Indexed: 12/19/2022] Open
Abstract
Background Tissue regeneration includes delivering specific types of cells or cell products to injured tissues or organs for restoration of tissue and organ function. Stem cell therapy has drawn considerable attention since transplantation of stem cells can overcome the limitations of autologous transplantation of patient’s tissues; however, it is not perfect for treating diseases. To overcome the hurdles associated with stem cell therapy, tissue engineering techniques have been developed. Development of stem cell technology in combination with tissue engineering has opened new ways of producing engineered tissue substitutes. Several studies have shown that this combination of tissue engineering and stem cell technologies enhances cell viability, differentiation, and therapeutic efficacy of transplanted stem cells. Main body Stem cells that can be used for tissue regeneration include mesenchymal stem cells, embryonic stem cells, and induced pluripotent stem cells. Transplantation of stem cells alone into injured tissues exhibited low therapeutic efficacy due to poor viability and diminished regenerative activity of transplanted cells. In this review, we will discuss the progress of biomedical engineering, including scaffolds, biomaterials, and tissue engineering techniques to overcome the low therapeutic efficacy of stem cells and to treat human diseases. Conclusion The combination of stem cell and tissue engineering techniques overcomes the limitations of stem cells in therapy of human diseases, and presents a new path toward regeneration of injured tissues.
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Affiliation(s)
- Seong Gyu Kwon
- 1Department of Physiology, Pusan National University School of Medicine, Yangsan, 50612 Gyeongsangnam-do Republic of Korea
| | - Yang Woo Kwon
- 1Department of Physiology, Pusan National University School of Medicine, Yangsan, 50612 Gyeongsangnam-do Republic of Korea
| | - Tae Wook Lee
- 1Department of Physiology, Pusan National University School of Medicine, Yangsan, 50612 Gyeongsangnam-do Republic of Korea
| | - Gyu Tae Park
- 1Department of Physiology, Pusan National University School of Medicine, Yangsan, 50612 Gyeongsangnam-do Republic of Korea
| | - Jae Ho Kim
- 1Department of Physiology, Pusan National University School of Medicine, Yangsan, 50612 Gyeongsangnam-do Republic of Korea.,2Research Institute of Convergence Biomedical Science and Technology, Pusan National University Yangsan Hospital, Yangsan, 50612 Republic of Korea
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112
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Grinstaff MW, Kaplan HM, Kohn J. Predoctoral and Postdoctoral Training Pipeline in Translational Biomaterials Research and Regenerative Medicine. ACS Biomater Sci Eng 2018; 4:3919-3926. [PMID: 31106261 PMCID: PMC6521873 DOI: 10.1021/acsbiomaterials.7b00268] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The translation of biomaterial based and regenerative therapies from the laboratory to patients involves multiple challenges. One of the most pressing challenges is the educational one: to train a cohort of scientists and engineers capable of translating their discoveries from bench to market to clinic. To meet this need, translational training programs are being implemented globally at universities and as partnerships between universities and corporations. In this perspective, we describe two translational NIH T32 graduate and postgraduate training programs that augment the traditional approach to training early stage scientists and engineers. At the graduate level, Boston University developed and implemented the Translational Research in Biomaterials (TRB) predoctoral training program. At the postgraduate level, Rutgers, The State University of New Jersey, developed and implemented the Translational Research in Regenerative Medicine (TRRM) program for postdoctoral training. These programs are motivated by the need for training in translational research in the biomedical field, by young scientists' requests for such training, and by the fundamental challenges facing future discovery and clinical implementation of biomaterial-based technologies. The TRB program immerses trainees in the concept of translating an idea from the research laboratory to the clinic, introduces them to the challenges of such an endeavor, provides discussions with relevant faculty (for example, with businesses, patient care, or clinical trial experience), and educates them in the critical areas required for their future careers. Similarly, the TRRM program emphasizes translational research and the concept of "training without borders," which enables collaborations across several geographically dispersed institutions so as to make regional experts accessible regardless of where they are located physically. Both programs promote interdisciplinary research, expose young scientists and engineers to challenges outside of their specialty, and build interpersonal skills for cross-disciplinary communication. The TRB program focuses on quantitative science and engineering courses, together with translation-based courses in clinical trials and business. The TRRM program focuses on broadening the horizon of its trainees through exposure to a wider network of mentors than traditional postdoctoral programs, and by encouraging trainees to engage in collaborative research across at least two different laboratories. Both programs meet significant public health needs: the skills that trainees acquire are essential in future biomedical careers as they join teams that combine diverse backgrounds to meet a common goal in research, development, and ultimately commercialization.
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Affiliation(s)
- Mark W. Grinstaff
- Departments of Biomedical Engineering, Chemistry, and Medicine, Boston University, Boston, Massachusetts 02215, United States
| | - Hilton M. Kaplan
- New Jersey Center for Biomaterials, Rutgers, The State University of New Jersey, Piscataway, New Jersey 08854, United States
| | - Joachim Kohn
- New Jersey Center for Biomaterials, Rutgers, The State University of New Jersey, Piscataway, New Jersey 08854, United States
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113
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Natividad-Diaz SL, Browne S, Jha AK, Ma Z, Hossainy S, Kurokawa YK, George SC, Healy KE. A combined hiPSC-derived endothelial cell and in vitro microfluidic platform for assessing biomaterial-based angiogenesis. Biomaterials 2018; 194:73-83. [PMID: 30583150 DOI: 10.1016/j.biomaterials.2018.11.032] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2018] [Accepted: 11/26/2018] [Indexed: 12/12/2022]
Abstract
Human induced pluripotent stem cell (hiPSC) derived angiogenesis models present a unique opportunity for patient-specific platforms to study the complex process of angiogenesis and the endothelial cell response to biomaterial and biophysical changes in a defined microenvironment. We present a refined method for differentiating hiPSCs into a CD31 + endothelial cell population (hiPSC-ECs) using a single basal medium from pluripotency to the final stage of differentiation. This protocol produces endothelial cells that are functionally competent in assays following purification. Subsequently, an in vitro angiogenesis model was developed by encapsulating the hiPSC-ECs into a tunable, growth factor sequestering hyaluronic acid (HyA) matrix where they formed stable, capillary-like networks that responded to environmental stimuli. Perfusion of the networks was demonstrated using fluorescent beads in a microfluidic device designed to study angiogenesis. The combination of hiPSC-ECs, bioinspired hydrogel, and the microfluidic platform creates a unique testbed for rapidly assessing the performance of angiogenic biomaterials.
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Affiliation(s)
- Sylvia L Natividad-Diaz
- Department of Bioengineering, University of California-Berkeley, Berkeley, CA, United States
| | - Shane Browne
- Department of Bioengineering, University of California-Berkeley, Berkeley, CA, United States
| | - Amit K Jha
- Department of Bioengineering, University of California-Berkeley, Berkeley, CA, United States; Department of Materials Science and Engineering, University of California-Berkeley, Berkeley, CA, United States
| | - Zhen Ma
- Department of Bioengineering, University of California-Berkeley, Berkeley, CA, United States
| | - Samir Hossainy
- Department of Bioengineering, University of California-Berkeley, Berkeley, CA, United States; Department of Materials Science and Engineering, University of California-Berkeley, Berkeley, CA, United States
| | - Yosuke K Kurokawa
- Department of Biomedical Engineering, Washington University in St Louis, MO, United States
| | - Steven C George
- Department of Biomedical Engineering, University of California-Davis, Davis, CA, United States
| | - Kevin E Healy
- Department of Bioengineering, University of California-Berkeley, Berkeley, CA, United States; Department of Materials Science and Engineering, University of California-Berkeley, Berkeley, CA, United States.
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114
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Autologous fibrin scaffolds: When platelet- and plasma-derived biomolecules meet fibrin. Biomaterials 2018; 192:440-460. [PMID: 30500725 DOI: 10.1016/j.biomaterials.2018.11.029] [Citation(s) in RCA: 65] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2018] [Revised: 11/08/2018] [Accepted: 11/20/2018] [Indexed: 02/06/2023]
Abstract
The healing of vascularized mammalian tissue injuries initiate with hemostasis and clotting as part of biological defense system leading to the formation of a fibrin clot in which activated platelets are trapped to quickly stop bleeding and destroy microbials. In order to harness the therapeutic potential of biomolecules secreted by platelets and stemmed from plasma, blood deconstruction has allowed to yield autologous platelet-and plasma-derived protein fibrin scaffold. The autologous growth factors and microparticles stemmed from platelets and plasma, interact with fibrin, extracellular matrix, and tissue cells in a combinatorial, synergistic, and multidirectional way on mechanisms governing tissue repair. This interplay will induce a wide range of cell specifications during inflammation and repair process including but not limited to fibrogenesis, angiogenesis, and immunomodulation. As biology-as-a-drug approach, autologous platelet-and plasma-derived protein fibrin scaffold is emerging as a safe and efficacious natural human-engineered growth factor delivery system to repair musculoskeletal tissues, and skin and corneal ulcers and burns. In doing so, it acts as therapeutic agent not perfect but close to biological precision. However, this autologous, biocompatible, biodegradable, and long in vivo lasting strategy faces several challenges, including its non-conventional single dose-response effect, the lack of standardization in its preparation and application, and the patient's biological features. In this review, we give an account of the main events of tissue repair. Then, we describe the procedure to prepare autologous platelet-and plasma-derived protein fibrin scaffolds, and the rationale behind these biomaterials, and finally, we highlight the significance of strategic accuracy in their application.
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115
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Stewart SA, Coulson MB, Zhou C, Burke NAD, Stöver HDH. Synthetic hydrogels formed by thiol-ene crosslinking of vinyl sulfone-functional poly(methyl vinyl ether-alt-maleic acid) with α,ω-dithio-polyethyleneglycol. SOFT MATTER 2018; 14:8317-8324. [PMID: 30288534 DOI: 10.1039/c8sm01066h] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Polymer hydrogels formed by rapid thiol-ene coupling of macromolecular gel formers can offer access to versatile new matrices. This paper describes the efficient synthesis of cysteamine vinyl sulfone (CVS) trifluoroacetate, and its incorporation into poly(methyl vinyl ether-alt-maleic anhydride) (PMMAn) to form a series of CVS-functionalized poly(methyl vinyl ether-alt-maleic acid) polymers (PMM-CVSx) containing 10 to 30 mol% pendant vinyl sulfone groups. Aqueous mixtures of these PMM-CVS and a dithiol crosslinker, α,ω-dithio-polyethyleneglycol (HS-PEG-SH, Mn = 1 kDa), gelled through crosslinking by Michael addition within seconds to minutes, depending on pH, degree of functionalization, and polymer loading. Gelation efficiency, Young's modulus, equilibrium swelling and hydrolytic stability are described, and step-wise hydrogel post-functionalization with a small molecule thiol, cysteamine, was demonstrated. Cytocompatibility of these crosslinked hydrogels towards entrapped 3T3 fibroblasts was confirmed using a live/dead fluorescence assay.
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Affiliation(s)
- S A Stewart
- Department of Chemistry and Chemical Biology, McMaster University, Hamilton, Ontario L8S 4M1, Canada.
| | - M B Coulson
- Department of Chemistry and Chemical Biology, McMaster University, Hamilton, Ontario L8S 4M1, Canada.
| | - C Zhou
- Department of Chemistry and Chemical Biology, McMaster University, Hamilton, Ontario L8S 4M1, Canada.
| | - N A D Burke
- Department of Chemistry and Chemical Biology, McMaster University, Hamilton, Ontario L8S 4M1, Canada.
| | - H D H Stöver
- Department of Chemistry and Chemical Biology, McMaster University, Hamilton, Ontario L8S 4M1, Canada.
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116
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Lumelsky N, O'Hayre M, Chander P, Shum L, Somerman MJ. Autotherapies: Enhancing Endogenous Healing and Regeneration. Trends Mol Med 2018; 24:919-930. [PMID: 30213702 DOI: 10.1016/j.molmed.2018.08.004] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2018] [Revised: 08/09/2018] [Accepted: 08/17/2018] [Indexed: 12/31/2022]
Abstract
The promise of tissue engineering and regenerative medicine to reduce the burden of disease and improve quality of life are widely acknowledged. Traditional tissue engineering and regenerative medicine approaches rely on generation of tissue constructs in vitro for subsequent transplantation or injection of exogenously manipulated cells into a host. While promising, few such therapies have succeeded in clinical practice. Here, we propose that recent advances in stem cell and developmental biology, immunology, bioengineering, and material sciences, position us to develop a new generation of in vivo regenerative medicine therapies, which we term autotherapies. Autotherapies are strategies based on optimizing endogenous tissue responses and capitalizing on manipulation of stem cell niches and endogenous tissue microenvironments to enhance tissue healing and regeneration.
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Affiliation(s)
- Nadya Lumelsky
- National Institute of Dental and Craniofacial Research, National Institutes of Health, 6701 Democracy Blvd., Bethesda, MD 20892-4878, USA.
| | - Morgan O'Hayre
- National Institute of Dental and Craniofacial Research, National Institutes of Health, 6701 Democracy Blvd., Bethesda, MD 20892-4878, USA
| | - Preethi Chander
- National Institute of Dental and Craniofacial Research, National Institutes of Health, 6701 Democracy Blvd., Bethesda, MD 20892-4878, USA
| | - Lillian Shum
- National Institute of Dental and Craniofacial Research, National Institutes of Health, 6701 Democracy Blvd., Bethesda, MD 20892-4878, USA
| | - Martha J Somerman
- National Institute of Dental and Craniofacial Research, National Institutes of Health, 6701 Democracy Blvd., Bethesda, MD 20892-4878, USA
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117
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Zhu K, Chen N, Liu X, Mu X, Zhang W, Wang C, Zhang YS. A General Strategy for Extrusion Bioprinting of Bio-Macromolecular Bioinks through Alginate-Templated Dual-Stage Crosslinking. Macromol Biosci 2018; 18:e1800127. [PMID: 29943499 PMCID: PMC6467480 DOI: 10.1002/mabi.201800127] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2018] [Revised: 04/30/2018] [Indexed: 01/14/2023]
Abstract
The recently developed 3D bioprinting technology has greatly improved the ability to generate biomimetic tissues that are structurally and functionally relevant to their human counterparts. The selection of proper biomaterials as the bioinks is a key step toward successful bioprinting. For example, viscosity of a bioink is an important rheological parameter to determine the flexibility in deposition of free-standing structures and the maintenance of architectural integrity following bioprinting. This requirement, however, has greatly limited the selection of bioinks, especially for those naturally derived due to their commonly low mechanical properties. Here the generalization of a mechanism for extrusion bioprinting of bio-macromolecular components, mainly focusing on collagen and its derivatives including gelatin and gelatin methacryloyl, is reported. Specifically, a templating strategy is adopted using a composite bioink containing both the desired bio-macromolecular component and a polysaccharide alginate. The physically crosslinkable alginate component serves as the temporal structural support to stabilize the shape of the construct during bioprinting; upon subsequent chemical or physical crosslinking of the bio-macromolecular component, alginate can be selectively removed to leave only the desired bio-macromolecule. It is anticipated that this strategy is general, and can be readily expanded for use of a wide variety of other bio-macromolecular bioinks.
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Affiliation(s)
- Kai Zhu
- Department of Cardiac Surgery, Zhongshan Hospital, Fudan University, Shanghai, 200032, P. R. China
- Shanghai Institute of Cardiovascular Disease, Shanghai, 200032, P. R. China
| | - Nan Chen
- Department of Cardiac Surgery, Zhongshan Hospital, Fudan University, Shanghai, 200032, P. R. China
- Shanghai Institute of Cardiovascular Disease, Shanghai, 200032, P. R. China
| | - Xiao Liu
- Beijing Advanced Innovation Center for Biomedical Engineering, Key Laboratory for Biomechanics and Mechanobiology of the Ministry of Education, School of Biological Science and Medical Engineering, Beihang University, Beijing, 100083, P. R. China
| | - Xuan Mu
- Division of Engineering in Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA, 02139, USA
| | - Weijia Zhang
- Department of Chemistry and Institute of Biomedical Science, Fudan University, Shanghai, 200433, P. R. China
| | - Chunsheng Wang
- Department of Cardiac Surgery, Zhongshan Hospital, Fudan University, Shanghai, 200032, P. R. China
- Shanghai Institute of Cardiovascular Disease, Shanghai, 200032, P. R. China
| | - Yu Shrike Zhang
- Division of Engineering in Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA, 02139, USA
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118
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Injectable Platelet-, Leukocyte-, and Fibrin-Rich Plasma (iL-PRF) in the Management of Androgenetic Alopecia. Dermatol Surg 2018; 44:1183-1190. [DOI: 10.1097/dss.0000000000001584] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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119
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Goetzke R, Sechi A, De Laporte L, Neuss S, Wagner W. Why the impact of mechanical stimuli on stem cells remains a challenge. Cell Mol Life Sci 2018; 75:3297-3312. [PMID: 29728714 PMCID: PMC11105618 DOI: 10.1007/s00018-018-2830-z] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2018] [Revised: 04/12/2018] [Accepted: 04/23/2018] [Indexed: 02/08/2023]
Abstract
Mechanical stimulation affects growth and differentiation of stem cells. This may be used to guide lineage-specific cell fate decisions and therefore opens fascinating opportunities for stem cell biology and regenerative medicine. Several studies demonstrated functional and molecular effects of mechanical stimulation but on first sight these results often appear to be inconsistent. Comparison of such studies is hampered by a multitude of relevant parameters that act in concert. There are notorious differences between species, cell types, and culture conditions. Furthermore, the utilized culture substrates have complex features, such as surface chemistry, elasticity, and topography. Cell culture substrates can vary from simple, flat materials to complex 3D scaffolds. Last but not least, mechanical forces can be applied with different frequency, amplitude, and strength. It is therefore a prerequisite to take all these parameters into consideration when ascribing their specific functional relevance-and to only modulate one parameter at the time if the relevance of this parameter is addressed. Such research questions can only be investigated by interdisciplinary cooperation. In this review, we focus particularly on mesenchymal stem cells and pluripotent stem cells to discuss relevant parameters that contribute to the kaleidoscope of mechanical stimulation of stem cells.
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Affiliation(s)
- Roman Goetzke
- Helmholtz Institute for Biomedical Engineering, Stem Cell Biology and Cellular Engineering, RWTH Aachen University Medical School, Aachen, Germany
- Institute for Biomedical Engineering - Cell Biology, RWTH Aachen University Medical School, Aachen, Germany
| | - Antonio Sechi
- Institute for Biomedical Engineering - Cell Biology, RWTH Aachen University Medical School, Aachen, Germany
| | - Laura De Laporte
- DWI - Leibniz-Institute for Interactive Materials, 52074, Aachen, Germany
| | - Sabine Neuss
- Helmholtz Institute for Biomedical Engineering, Biointerface Group, RWTH Aachen University Medical School, 52074, Aachen, Germany.
- Institute of Pathology, RWTH Aachen University Medical School, Aachen, Germany.
| | - Wolfgang Wagner
- Helmholtz Institute for Biomedical Engineering, Stem Cell Biology and Cellular Engineering, RWTH Aachen University Medical School, Aachen, Germany.
- Institute for Biomedical Engineering - Cell Biology, RWTH Aachen University Medical School, Aachen, Germany.
- Helmholtz Institute for Biomedical Engineering, Biointerface Group, RWTH Aachen University Medical School, 52074, Aachen, Germany.
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120
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Tharp KM, Weaver VM. Modeling Tissue Polarity in Context. J Mol Biol 2018; 430:3613-3628. [PMID: 30055167 DOI: 10.1016/j.jmb.2018.07.015] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2018] [Revised: 06/27/2018] [Accepted: 07/11/2018] [Indexed: 12/17/2022]
Abstract
Polarity is critical for development and tissue-specific function. However, the acquisition and maintenance of tissue polarity is context dependent. Thus, cell and tissue polarity depend on cell adhesion which is regulated by the cytoskeleton and influenced by the biochemical composition of the extracellular microenvironment and modified by biomechanical cues within the tissue. These biomechanical cues include fluid flow induced shear stresses, cell-density and confinement-mediated compression, and cellular actomyosin tension intrinsic to the tissue or induced in response to morphogens or extracellular matrix stiffness. Here, we discuss how extracellular matrix stiffness and fluid flow influence cell-cell and cell-extracellular matrix adhesion and alter cytoskeletal organization to modulate cell and tissue polarity. We describe model systems that when combined with state of the art molecular screens and high-resolution imaging can be used to investigate how force modulates cell and tissue polarity.
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Affiliation(s)
- Kevin M Tharp
- Center for Bioengineering and Tissue Regeneration, Department of Surgery, University of California San Francisco, San Francisco, CA 94143, USA
| | - Valerie M Weaver
- Center for Bioengineering and Tissue Regeneration, Department of Surgery, University of California San Francisco, San Francisco, CA 94143, USA; Department of Bioengineering and Therapeutic Sciences, University of California San Francisco, San Francisco, CA 94143, USA; Department of Radiation Oncology, Eli and Edythe Broad Center of Regeneration Medicine and Stem Cell Research, University of California San Francisco, San Francisco, CA 94143, USA; Helen Diller Family Comprehensive Cancer Center, University of California San Francisco, San Francisco, CA 94143, USA.
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121
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Jansen LE, Amer LD, Chen EYT, Nguyen TV, Saleh LS, Emrick T, Liu WF, Bryant SJ, Peyton SR. Zwitterionic PEG-PC Hydrogels Modulate the Foreign Body Response in a Modulus-Dependent Manner. Biomacromolecules 2018; 19:2880-2888. [PMID: 29698603 PMCID: PMC6190668 DOI: 10.1021/acs.biomac.8b00444] [Citation(s) in RCA: 65] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Reducing the foreign body response (FBR) to implanted biomaterials will enhance their performance in tissue engineering. Poly(ethylene glycol) (PEG) hydrogels are increasingly popular for this application due to their low cost, ease of use, and the ability to tune their compliance via molecular weight and cross-linking densities. PEG hydrogels can elicit chronic inflammation in vivo, but recent evidence has suggested that extremely hydrophilic, zwitterionic materials and particles can evade the immune system. To combine the advantages of PEG-based hydrogels with the hydrophilicity of zwitterions, we synthesized hydrogels with comonomers PEG and the zwitterion phosphorylcholine (PC). Recent evidence suggests that stiff hydrogels elicit increased immune cell adhesion to hydrogels, which we attempted to reduce by increasing hydrogel hydrophilicity. Surprisingly, hydrogels with the highest amount of zwitterionic comonomer elicited the highest FBR. Lowering the hydrogel modulus (165 to 3 kPa), or PC content (20 to 0 wt %), mitigated this effect. A high density of macrophages was found at the surface of implants associated with a high FBR, and mass spectrometry analysis of the proteins adsorbed to these gels implicated extracellular matrix, immune response, and cell adhesion protein categories as drivers of macrophage recruitment. Overall, we show that modulus regulates macrophage adhesion to zwitterionic-PEG hydrogels, and demonstrate that chemical modifications to hydrogels should be studied in parallel with their physical properties to optimize implant design.
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Affiliation(s)
| | - Luke D Amer
- Department of Chemical and Biological Engineering , University of Colorado Boulder , Boulder , Colorado 80309 , United States
| | - Esther Y-T Chen
- Department of Biomedical Engineering , University of California, Irvine , Irvine , California 92697 , United States
| | | | - Leila S Saleh
- Department of Chemical and Biological Engineering , University of Colorado Boulder , Boulder , Colorado 80309 , United States
| | | | - Wendy F Liu
- Department of Biomedical Engineering , University of California, Irvine , Irvine , California 92697 , United States
| | - Stephanie J Bryant
- Department of Chemical and Biological Engineering , University of Colorado Boulder , Boulder , Colorado 80309 , United States
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122
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Zhang X, Kang X, Jin L, Bai J, Liu W, Wang Z. Stimulation of wound healing using bioinspired hydrogels with basic fibroblast growth factor (bFGF). Int J Nanomedicine 2018; 13:3897-3906. [PMID: 30013343 PMCID: PMC6038860 DOI: 10.2147/ijn.s168998] [Citation(s) in RCA: 108] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
INTRODUCTION The objective of this study is to stimulate wound healing using bioinspired hydrogels with basic fibroblast growth factor (bFGF). MATERIALS AND METHODS Inspired by the crosslinking mechanism in algae-based adhesives, hydrogels were fabricated with gum arabic, pectin, and Ca2+. The physical properties of the bioinspired hydrogels were characterized, and the in vitro release of bFGF was investigated. Then, the in vitro scratch assay for wound healing and in vivo wound healing experiment in a full-thickness excision wound model were performed for the bioinspired hydrogels with bFGF. Finally, histological examinations and organ toxicity tests were conducted to investigate the wound healing applications of the bioinspired hydrogels with bFGF. RESULTS The in vitro and in vivo results showed that the bioinspired hydrogels with bFGF could significantly enhance cell proliferation, wound re-epithelialization, collagen deposition, and contraction without any noticeable toxicity and inflammation compared with the hydrogels without bFGF and commercial wound healing products. CONCLUSION These results suggest the potential application of bioinspired hydrogels with bFGF for wound healing.
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Affiliation(s)
- Xiaoyu Zhang
- Third Ward of Tumor Surgery Department, Cangzhou Central Hospital, Cangzhou, Hebei Province, People's Republic of China,
| | - Xiaoning Kang
- Third Ward of Ultrasound Department, Cangzhou Central Hospital, Cangzhou, Hebei Province, People's Republic of China
| | - Lijun Jin
- Third Ward of Tumor Surgery Department, Cangzhou Central Hospital, Cangzhou, Hebei Province, People's Republic of China,
| | - Jie Bai
- Third Ward of Tumor Surgery Department, Cangzhou Central Hospital, Cangzhou, Hebei Province, People's Republic of China,
| | - Wei Liu
- Third Ward of Tumor Surgery Department, Cangzhou Central Hospital, Cangzhou, Hebei Province, People's Republic of China,
| | - Zunyi Wang
- Third Ward of Tumor Surgery Department, Cangzhou Central Hospital, Cangzhou, Hebei Province, People's Republic of China,
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123
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Koçer G, Jonkheijm P. About Chemical Strategies to Fabricate Cell-Instructive Biointerfaces with Static and Dynamic Complexity. Adv Healthc Mater 2018; 7:e1701192. [PMID: 29717821 DOI: 10.1002/adhm.201701192] [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: 10/07/2017] [Revised: 02/12/2018] [Indexed: 12/21/2022]
Abstract
Properly functioning cell-instructive biointerfaces are critical for healthy integration of biomedical devices in the body and serve as decisive tools for the advancement of our understanding of fundamental cell biological phenomena. Studies are reviewed that use covalent chemistries to fabricate cell-instructive biointerfaces. These types of biointerfaces typically result in a static presentation of predefined cell-instructive cues. Chemically defined, but dynamic cell-instructive biointerfaces introduce spatiotemporal control over cell-instructive cues and present another type of biointerface, which promises a more biomimetic way to guide cell behavior. Therefore, strategies that offer control over the lateral sorting of ligands, the availability and molecular structure of bioactive ligands, and strategies that offer the ability to induce physical, chemical and mechanical changes in situ are reviewed. Specific attention is paid to state-of-the-art studies on dynamic, cell-instructive 3D materials. Future work is expected to further deepen our understanding of molecular and cellular biological processes investigating cell-type specific responses and the translational steps toward targeted in vivo applications.
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Affiliation(s)
- Gülistan Koçer
- TechMed Centre and MESA Institute for Nanotechnology; University of Twente; 7500 AE Enschede The Netherlands
- Institute of Biomaterials and Biomedical Engineering; University of Toronto; Toronto M5S 3G9 Ontario Canada
| | - Pascal Jonkheijm
- TechMed Centre and MESA Institute for Nanotechnology; University of Twente; 7500 AE Enschede The Netherlands
- Institute of Biomaterials and Biomedical Engineering; University of Toronto; Toronto M5S 3G9 Ontario Canada
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124
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Lee Y, Son JY, Kang JI, Park KM, Park KD. Hydrogen Peroxide-Releasing Hydrogels for Enhanced Endothelial Cell Activities and Neovascularization. ACS APPLIED MATERIALS & INTERFACES 2018; 10:18372-18379. [PMID: 29722526 DOI: 10.1021/acsami.8b04522] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Reactive oxygen species (ROS) have been implicated as a critical modulator for various therapeutic applications such as treatment of vascular disorders, wound healing, and cancer treatment. Specifically, growing evidence has recently demonstrated that transient or low levels of hydrogen peroxide (H2O2) facilitates tissue regeneration and wound repair through acute oxidative stress that can evaluate intracellular ROS levels in cells or tissues. Herein, we report a gelatin-based H2O2-releasing hydrogel formed by dual enzyme-mediated reaction using horseradish peroxidase and glucose oxidase (GO x). The release behavior of H2O2 from the hydrogel matrices can be precisely controlled by varying the GO x concentrations. We demonstrate that H2O2-releasing hydrogels with the optimal condition increase transient upregulation of intracellular ROS levels in the endothelial cells (ECs), enhance proliferative activities of ECs in vitro, and facilitate neovascularization in ovo. We suggest that our H2O2-releasing hydrogels hold great potential as an injectable and dynamic matrix for the treatment of vascular disorders as well as in tissue regenerative medicine.
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Affiliation(s)
- Yunki Lee
- Department of Molecular Science and Technology , Ajou University , 5 Woncheon , Yeongtong, Suwon 16499 , Republic of Korea
| | - Joo Young Son
- Department of Molecular Science and Technology , Ajou University , 5 Woncheon , Yeongtong, Suwon 16499 , Republic of Korea
| | - Jeon Il Kang
- Department of Bioengineering and Nano-bioengineering, College of Life Sciences and Bioengineering , Incheon National University , 119 Academy-ro , Yeonsu-gu, Incheon 22012 , Republic of Korea
| | - Kyung Min Park
- Department of Bioengineering and Nano-bioengineering, College of Life Sciences and Bioengineering , Incheon National University , 119 Academy-ro , Yeonsu-gu, Incheon 22012 , Republic of Korea
| | - Ki Dong Park
- Department of Molecular Science and Technology , Ajou University , 5 Woncheon , Yeongtong, Suwon 16499 , Republic of Korea
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125
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Burkhardt MA, Gerber I, Moshfegh C, Lucas MS, Waser J, Emmert MY, Hoerstrup SP, Schlottig F, Vogel V. Clot-entrapped blood cells in synergy with human mesenchymal stem cells create a pro-angiogenic healing response. Biomater Sci 2018; 5:2009-2023. [PMID: 28809406 DOI: 10.1039/c7bm00276a] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Blood clots stop bleeding and provide cell-instructive microenvironments. Still, in vitro models used to study implant performance typically neglect any possible interactions of recruited cells with surface-adhering blood clots. Here we study the interaction and synergies of bone marrow derived human mesenchymal stem cells (hMSCs) with surface-induced blood clots in an in vitro model by fluorescence microscopy, scanning and correlative light and electron microscopy, ELISA assays and zymography. The clinically used alkali-treated rough titanium (Ti) surfaces investigated here are known to enhance blood clotting compared to native Ti and to improve the healing response, but the underlying mechanisms remain elusive. Here we show that the presence of blood clots synergistically increased hMSC proliferation, extracellular matrix (ECM) remodelling and the release of matrix fragments and angiogenic VEGF, but did not increase the osteogenic differentiation of hMSCs. While many biomaterials are nowadays engineered to release pro-angiogenic factors, we show here that clot-entrapped blood cells on conventional materials in synergy with hMSCs are potent producers of pro-angiogenic factors. Our data might thus not only explain why alkali-treatment is beneficial for Ti implant integration, but they suggest that the physiological importance of blood clots to create pro-angiogenic environments on implants has been greatly underestimated. The importance of blood clots might have been missed because the pro-angiogenic functions get activated only upon stimulation by synergistic interactions with the invading cells.
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Affiliation(s)
- Melanie A Burkhardt
- Department of Health Sciences and Technology, Institute of Translational Medicine, Laboratory of Applied Mechanobiology, ETH Zurich, Vladimir-Prelog-Weg 4, Zurich, 8093, Switzerland.
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126
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Madl CM, Heilshorn SC, Blau HM. Bioengineering strategies to accelerate stem cell therapeutics. Nature 2018; 557:335-342. [PMID: 29769665 PMCID: PMC6773426 DOI: 10.1038/s41586-018-0089-z] [Citation(s) in RCA: 232] [Impact Index Per Article: 38.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2018] [Accepted: 03/16/2018] [Indexed: 02/06/2023]
Abstract
Although only a few stem cell-based therapies are currently available to patients, stem cells hold tremendous regenerative potential, and several exciting clinical applications are on the horizon. Biomaterials with tuneable mechanical and biochemical properties can preserve stem cell function in culture, enhance survival of transplanted cells and guide tissue regeneration. Rapid progress with three-dimensional hydrogel culture platforms provides the opportunity to grow patient-specific organoids, and has led to the discovery of drugs that stimulate endogenous tissue-specific stem cells and enabled screens for drugs to treat disease. Therefore, bioengineering technologies are poised to overcome current bottlenecks and revolutionize the field of regenerative medicine.
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Affiliation(s)
- Christopher M Madl
- Baxter Laboratory for Stem Cell Biology, Department of Microbiology and Immunology, Stanford University School of Medicine, Stanford, California, USA
| | - Sarah C Heilshorn
- Department of Materials Science and Engineering, Stanford University, Stanford, California, USA
| | - Helen M Blau
- Baxter Laboratory for Stem Cell Biology, Department of Microbiology and Immunology, Stanford University School of Medicine, Stanford, California, USA.
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127
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Mendes BB, Gómez-Florit M, Babo PS, Domingues RM, Reis RL, Gomes ME. Blood derivatives awaken in regenerative medicine strategies to modulate wound healing. Adv Drug Deliv Rev 2018; 129:376-393. [PMID: 29288732 DOI: 10.1016/j.addr.2017.12.018] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2017] [Revised: 12/04/2017] [Accepted: 12/22/2017] [Indexed: 02/06/2023]
Abstract
Blood components play key roles in the modulation of the wound healing process and, together with the provisional fibrin matrix ability to selectively bind bioactive molecules and control its spatial-temporal presentation, define the complex microenvironment that characterize this biological process. As a biomimetic approach, the use of blood derivatives in regenerative strategies has awakened as a source of multiple therapeutic biomolecules. Nevertheless, and despite their clinical relevance, blood derivatives have been showing inconsistent therapeutic results due to several factors, including proper control over their delivery mechanisms. Herein, we highlight recent trends on the use biomaterials to protect, sequester and deliver these pools of biomolecules in tissue engineering and regenerative medicine approaches. Particular emphasis is given to strategies that enable to control their spatiotemporal delivery and improve the selectivity of presentation profiles of the biomolecules derived from blood derivatives rich in platelets. Finally, we discussed possible directions for biomaterials design to potentiate the aimed regenerative effects of blood derivatives and achieve efficient therapies.
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128
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Wieringa PA, Gonçalves de Pinho AR, Micera S, Wezel RJA, Moroni L. Biomimetic Architectures for Peripheral Nerve Repair: A Review of Biofabrication Strategies. Adv Healthc Mater 2018; 7:e1701164. [PMID: 29349931 DOI: 10.1002/adhm.201701164] [Citation(s) in RCA: 80] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2017] [Revised: 11/13/2017] [Indexed: 12/19/2022]
Abstract
Biofabrication techniques have endeavored to improve the regeneration of the peripheral nervous system (PNS), but nothing has surpassed the performance of current clinical practices. However, these current approaches have intrinsic limitations that compromise patient care. The "gold standard" autograft provides the best outcomes but requires suitable donor material, while implantable hollow nerve guide conduits (NGCs) can only repair small nerve defects. This review places emphasis on approaches that create structural cues within a hollow NGC lumen in order to match or exceed the regenerative performance of the autograft. An overview of the PNS and nerve regeneration is provided. This is followed by an assessment of reported devices, divided into three major categories: isotropic hydrogel fillers, acting as unstructured interluminal support for regenerating nerves; fibrous interluminal fillers, presenting neurites with topographical guidance within the lumen; and patterned interluminal scaffolds, providing 3D support for nerve growth via structures that mimic native PNS tissue. Also presented is a critical framework to evaluate the impact of reported outcomes. While a universal and versatile nerve repair strategy remains elusive, outlined here is a roadmap of past, present, and emerging fabrication techniques to inform and motivate new developments in the field of peripheral nerve regeneration.
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Affiliation(s)
- Paul A. Wieringa
- Department of Complex Tissue RegenerationMERLN Institute for Technology‐Inspired Regenerative MedicineMaastricht University Universiteitssingel 40 Maastricht 6229 ER The Netherlands
| | - Ana Rita Gonçalves de Pinho
- Tissue Regeneration DepartmentMIRA InstituteUniversity of Twente Drienerlolaan 5 Enschede 7522 NB The Netherlands
| | - Silvestro Micera
- BioRobotics InstituteScuola Superiore Sant'Anna Viale Rinaldo Piaggio 34 Pontedera 56025 Italy
- Translational Neural Engineering LaboratoryEcole Polytechnique Federale de Lausanne Ch. des Mines 9 Geneva CH‐1202 Switzerland
| | - Richard J. A. Wezel
- BiophysicsDonders Institute for BrainCognition and BehaviourRadboud University Kapittelweg 29 Nijmegen 6525 EN The Netherlands
- Biomedical Signals and SystemsMIRA InstituteUniversity of Twente Drienerlolaan 5 Enschede 7522 NB The Netherlands
| | - Lorenzo Moroni
- Department of Complex Tissue RegenerationMERLN Institute for Technology‐Inspired Regenerative MedicineMaastricht University Universiteitssingel 40 Maastricht 6229 ER The Netherlands
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129
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Biomaterial Scaffolds in Regenerative Therapy of the Central Nervous System. BIOMED RESEARCH INTERNATIONAL 2018; 2018:7848901. [PMID: 29805977 PMCID: PMC5899851 DOI: 10.1155/2018/7848901] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/11/2017] [Revised: 02/18/2018] [Accepted: 02/21/2018] [Indexed: 02/08/2023]
Abstract
The central nervous system (CNS) is the most important section of the nervous system as it regulates the function of various organs. Injury to the CNS causes impairment of neurological functions in corresponding sites and further leads to long-term patient disability. CNS regeneration is difficult because of its poor response to treatment and, to date, no effective therapies have been found to rectify CNS injuries. Biomaterial scaffolds have been applied with promising results in regeneration medicine. They also show great potential in CNS regeneration for tissue repair and functional recovery. Biomaterial scaffolds are applied in CNS regeneration predominantly as hydrogels and biodegradable scaffolds. They can act as cellular supportive scaffolds to facilitate cell infiltration and proliferation. They can also be combined with cell therapy to repair CNS injury. This review discusses the categories and progression of the biomaterial scaffolds that are applied in CNS regeneration.
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130
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Keane TJ, Horejs CM, Stevens MM. Scarring vs. functional healing: Matrix-based strategies to regulate tissue repair. Adv Drug Deliv Rev 2018; 129:407-419. [PMID: 29425770 DOI: 10.1016/j.addr.2018.02.002] [Citation(s) in RCA: 71] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2017] [Revised: 12/23/2017] [Accepted: 02/05/2018] [Indexed: 12/11/2022]
Abstract
All vertebrates possess mechanisms to restore damaged tissues with outcomes ranging from regeneration to scarring. Unfortunately, the mammalian response to tissue injury most often culminates in scar formation. Accounting for nearly 45% of deaths in the developed world, fibrosis is a process that stands diametrically opposed to functional tissue regeneration. Strategies to improve wound healing outcomes therefore require methods to limit fibrosis. Wound healing is guided by precise spatiotemporal deposition and remodelling of the extracellular matrix (ECM). The ECM, comprising the non-cellular component of tissues, is a signalling depot that is differentially regulated in scarring and regenerative healing. This Review focuses on the importance of the native matrix components during mammalian wound healing alongside a comparison to scar-free healing and then presents an overview of matrix-based strategies that attempt to exploit the role of the ECM to improve wound healing outcomes.
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131
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Edwards-Gayle CJC, Hamley IW. Self-assembly of bioactive peptides, peptide conjugates, and peptide mimetic materials. Org Biomol Chem 2018; 15:5867-5876. [PMID: 28661532 DOI: 10.1039/c7ob01092c] [Citation(s) in RCA: 118] [Impact Index Per Article: 19.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Molecular self-assembly is a multi-disciplinary field of research, with potential chemical and biological applications. One of the main driving forces of self-assembly is molecular amphiphilicity, which can drive formation of complex and stable nanostructures. Self-assembling peptide and peptide conjugates have attracted great attention due to their biocompatibility, biodegradability and biofunctionality. Understanding assembly enables the better design of peptide amphiphiles which may form useful and functional nanostructures. This review covers self-assembly of amphiphilic peptides and peptide mimetic materials, as well as their potential applications.
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Affiliation(s)
| | - Ian W Hamley
- Department of Chemistry, University of Reading, Whiteknights, Reading, RG6 6AD, UK.
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132
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Rose JC, De Laporte L. Hierarchical Design of Tissue Regenerative Constructs. Adv Healthc Mater 2018; 7:e1701067. [PMID: 29369541 DOI: 10.1002/adhm.201701067] [Citation(s) in RCA: 54] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2017] [Revised: 12/01/2017] [Indexed: 02/05/2023]
Abstract
The worldwide shortage of organs fosters significant advancements in regenerative therapies. Tissue engineering and regeneration aim to supply or repair organs or tissues by combining material scaffolds, biochemical signals, and cells. The greatest challenge entails the creation of a suitable implantable or injectable 3D macroenvironment and microenvironment to allow for ex vivo or in vivo cell-induced tissue formation. This review gives an overview of the essential components of tissue regenerating scaffolds, ranging from the molecular to the macroscopic scale in a hierarchical manner. Further, this review elaborates about recent pivotal technologies, such as photopatterning, electrospinning, 3D bioprinting, or the assembly of micrometer-scale building blocks, which enable the incorporation of local heterogeneities, similar to most native extracellular matrices. These methods are applied to mimic a vast number of different tissues, including cartilage, bone, nerves, muscle, heart, and blood vessels. Despite the tremendous progress that has been made in the last decade, it remains a hurdle to build biomaterial constructs in vitro or in vivo with a native-like structure and architecture, including spatiotemporal control of biofunctional domains and mechanical properties. New chemistries and assembly methods in water will be crucial to develop therapies that are clinically translatable and can evolve into organized and functional tissues.
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Affiliation(s)
- Jonas C. Rose
- DWI—Leibniz Institute for Interactive Materials Forckenbeckstr. 50 Aachen D‐52074 Germany
| | - Laura De Laporte
- DWI—Leibniz Institute for Interactive Materials Forckenbeckstr. 50 Aachen D‐52074 Germany
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133
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da Silva LP, Jha AK, Correlo VM, Marques AP, Reis RL, Healy KE. Gellan Gum Hydrogels with Enzyme-Sensitive Biodegradation and Endothelial Cell Biorecognition Sites. Adv Healthc Mater 2018; 7. [PMID: 29388392 DOI: 10.1002/adhm.201700686] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2017] [Revised: 12/04/2017] [Indexed: 12/13/2022]
Abstract
The survival of a biomaterial or tissue engineered construct is mainly hampered by the deficient microcirculation in its core, and limited nutrients and oxygen availability to the implanted or colonizing host cells. Aiming to address these issues, we herein propose bioresponsive gellan gum (GG) hydrogels that are biodegradable by metalloproteinase 1 (MMP-1) and enable endothelial cells adhesion and proliferation. GG is chemically functionalized with divinyl sulfone (DVS) and then biofunctionalized with thiol cell-adhesive peptides (T1 or C16) to confer GG endothelial cell biorecognition cues. Biodegradable hydrogels are then formed by Michael type addition of GGDVS or/and peptide-functionalized GGDVS with a dithiol peptide crosslinker sensitive to MMP-1. The mechanical properties (6 to 5580 Pa), swelling (17 to 11), MMP-1-driven degradation (up to 70%), and molecules diffusion coefficients of hydrogels are tuned by increasing the polymer amount and crosslinking density. Human umbilical cord vein endothelial cells depict a polarized elongated morphology when encapsulated within T1-containing hydrogels, in contrast to the round morphology observed in C16-containing hydrogels. Cell organization is favored as early as 1 d of cell culture within the T1-modified hydrogels with higher concentration of peptide, while cell proliferation is higher in T1-modified hydrogels with higher modulus. In conclusion, biodegradable and bioresponsive GGDVS hydrogels are promising endothelial cell responsive materials that can be used for vascularization strategies.
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Affiliation(s)
- Lucília P. da Silva
- 3B's Research Group - Biomaterials; Biodegradables and Biomimetics; Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine; University of Minho; Avepark Barco 4805-017 Guimarães Portugal
- ICVS/3B's - PT Government Associate Laboratory; Braga/Guimarães 4710-057/4806-909 Portugal
- Department of Bioengineering; University of California; Berkeley CA 94720-1762 USA
- Department of Materials Science and Engineering; University of California; Berkeley CA 94720-1760 USA
| | - Amit K. Jha
- Department of Bioengineering; University of California; Berkeley CA 94720-1762 USA
- Department of Materials Science and Engineering; University of California; Berkeley CA 94720-1760 USA
| | - Vitor M. Correlo
- 3B's Research Group - Biomaterials; Biodegradables and Biomimetics; Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine; University of Minho; Avepark Barco 4805-017 Guimarães Portugal
- ICVS/3B's - PT Government Associate Laboratory; Braga/Guimarães 4710-057/4806-909 Portugal
- The Discoveries Centre for Regenerative and Precision Medicine; Headquarters at University of Minho; Avepark, Barco 4805-017 Guimarães Portugal
| | - Alexandra P. Marques
- 3B's Research Group - Biomaterials; Biodegradables and Biomimetics; Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine; University of Minho; Avepark Barco 4805-017 Guimarães Portugal
- ICVS/3B's - PT Government Associate Laboratory; Braga/Guimarães 4710-057/4806-909 Portugal
- The Discoveries Centre for Regenerative and Precision Medicine; Headquarters at University of Minho; Avepark, Barco 4805-017 Guimarães Portugal
| | - Rui L. Reis
- 3B's Research Group - Biomaterials; Biodegradables and Biomimetics; Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine; University of Minho; Avepark Barco 4805-017 Guimarães Portugal
- ICVS/3B's - PT Government Associate Laboratory; Braga/Guimarães 4710-057/4806-909 Portugal
- The Discoveries Centre for Regenerative and Precision Medicine; Headquarters at University of Minho; Avepark, Barco 4805-017 Guimarães Portugal
| | - Kevin E. Healy
- Department of Bioengineering; University of California; Berkeley CA 94720-1762 USA
- Department of Materials Science and Engineering; University of California; Berkeley CA 94720-1760 USA
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134
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Hoarau-Véchot J, Rafii A, Touboul C, Pasquier J. Halfway between 2D and Animal Models: Are 3D Cultures the Ideal Tool to Study Cancer-Microenvironment Interactions? Int J Mol Sci 2018; 19:ijms19010181. [PMID: 29346265 PMCID: PMC5796130 DOI: 10.3390/ijms19010181] [Citation(s) in RCA: 283] [Impact Index Per Article: 47.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2017] [Revised: 01/03/2018] [Accepted: 01/04/2018] [Indexed: 02/06/2023] Open
Abstract
An area that has come to be of tremendous interest in tumor research in the last decade is the role of the microenvironment in the biology of neoplastic diseases. The tumor microenvironment (TME) comprises various cells that are collectively important for normal tissue homeostasis as well as tumor progression or regression. Seminal studies have demonstrated the role of the dialogue between cancer cells (at many sites) and the cellular component of the microenvironment in tumor progression, metastasis, and resistance to treatment. Using an appropriate system of microenvironment and tumor culture is the first step towards a better understanding of the complex interaction between cancer cells and their surroundings. Three-dimensional (3D) models have been widely described recently. However, while it is claimed that they can bridge the gap between in vitro and in vivo, it is sometimes hard to decipher their advantage or limitation compared to classical two-dimensional (2D) cultures, especially given the broad number of techniques used. We present here a comprehensive review of the different 3D methods developed recently, and, secondly, we discuss the pros and cons of 3D culture compared to 2D when studying interactions between cancer cells and their microenvironment.
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Affiliation(s)
- Jessica Hoarau-Véchot
- Stem Cell and Microenvironment Laboratory, Weill Cornell Medical College in Qatar, Qatar Foundation, Education City, Doha 24144, Qatar.
| | - Arash Rafii
- Stem Cell and Microenvironment Laboratory, Weill Cornell Medical College in Qatar, Qatar Foundation, Education City, Doha 24144, Qatar.
- Department of Genetic Medicine, Weill Cornell Medical College, New York, NY 10065, USA.
| | - Cyril Touboul
- UMR INSERM U965, Angiogenèse et Recherche Translationnelle, Hôpital Lariboisière, 49 bd de la Chapelle, 75010 Paris, France.
- Service de Gynécologie-Obstétrique et Médecine de la Reproduction, Centre Hospitalier Intercommunal de Créteil, Faculté de Médecine de Créteil UPEC, Paris XII, 40 Avenue de Verdun, 94000 Créteil, France.
| | - Jennifer Pasquier
- Stem Cell and Microenvironment Laboratory, Weill Cornell Medical College in Qatar, Qatar Foundation, Education City, Doha 24144, Qatar.
- Department of Genetic Medicine, Weill Cornell Medical College, New York, NY 10065, USA.
- INSERM U955, Equipe 7, 94000 Créteil, France.
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135
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136
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Seo J, Shin JY, Leijten J, Jeon O, Camci-Unal G, Dikina AD, Brinegar K, Ghaemmaghami AM, Alsberg E, Khademhosseini A. High-throughput approaches for screening and analysis of cell behaviors. Biomaterials 2018; 153:85-101. [PMID: 29079207 PMCID: PMC5702937 DOI: 10.1016/j.biomaterials.2017.06.022] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2016] [Revised: 06/17/2017] [Accepted: 06/19/2017] [Indexed: 02/06/2023]
Abstract
The rapid development of new biomaterials and techniques to modify them challenge our capability to characterize them using conventional methods. In response, numerous high-throughput (HT) strategies are being developed to analyze biomaterials and their interactions with cells using combinatorial approaches. Moreover, these systematic analyses have the power to uncover effects of delivered soluble bioactive molecules on cell responses. In this review, we describe the recent developments in HT approaches that help identify cellular microenvironments affecting cell behaviors and highlight HT screening of biochemical libraries for gene delivery, drug discovery, and toxicological studies. We also discuss HT techniques for the analyses of cell secreted biomolecules and provide perspectives on the future utility of HT approaches in biomedical engineering.
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Affiliation(s)
- Jungmok Seo
- Biomaterials Innovation Research Center, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA, 02139, USA; Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA, 02139, USA; Center for Biomaterials, Korea Institute of Science and Technology, 14 Hwarang-ro, Seongbuk-gu, Seoul, 02792, South Korea
| | - Jung-Youn Shin
- Department of Biomedical Engineering, Case Western Reserve University, Cleveland, OH, 44106, USA
| | - Jeroen Leijten
- Biomaterials Innovation Research Center, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA, 02139, USA; Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA, 02139, USA; Department of Developmental BioEngineering, MIRA Institute for Biomedical Technology and Technical Medicine, University of Twente, Enschede, The Netherlands
| | - Oju Jeon
- Department of Biomedical Engineering, Case Western Reserve University, Cleveland, OH, 44106, USA
| | - Gulden Camci-Unal
- Biomaterials Innovation Research Center, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA, 02139, USA; Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA, 02139, USA; Department of Chemical Engineering, University of Massachusetts Lowell, 1 University Ave, Lowell, MA, 01854-2827, USA
| | - Anna D Dikina
- Department of Biomedical Engineering, Case Western Reserve University, Cleveland, OH, 44106, USA
| | - Katelyn Brinegar
- Biomaterials Innovation Research Center, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA, 02139, USA; Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA, 02139, USA
| | - Amir M Ghaemmaghami
- Division of Immunology, School of Life Sciences, Faculty of Medicine and Health Sciences, Queen's Medical Centre, University of Nottingham, Nottingham, NG7 2UH, UK
| | - Eben Alsberg
- Department of Biomedical Engineering, Case Western Reserve University, Cleveland, OH, 44106, USA; Department of Orthopaedic Surgery, Case Western Reserve University, Cleveland, OH, 44106, USA; National Center for Regenerative Medicine, Division of General Medical Sciences, Case Western Reserve University, Cleveland, OH, 44106, USA.
| | - Ali Khademhosseini
- Biomaterials Innovation Research Center, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA, 02139, USA; Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA, 02139, USA; Department of Bioindustrial Technologies, College of Animal Bioscience and Technology, Konkuk University, Hwayang-dong, Gwangjin-gu, Seoul, 143-701, Republic of Korea; Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, MA, 02115, USA; Department of Physics, King Abdulaziz University, Jeddah, 21569, Saudi Arabia.
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137
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Bishop ES, Mostafa S, Pakvasa M, Luu HH, Lee MJ, Wolf JM, Ameer GA, He TC, Reid RR. 3-D bioprinting technologies in tissue engineering and regenerative medicine: Current and future trends. Genes Dis 2017; 4:185-195. [PMID: 29911158 PMCID: PMC6003668 DOI: 10.1016/j.gendis.2017.10.002] [Citation(s) in RCA: 313] [Impact Index Per Article: 44.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Advances in three-dimensional (3D) printing have increased feasibility towards the synthesis of living tissues. Known as 3D bioprinting, this technology involves the precise layering of cells, biologic scaffolds, and growth factors with the goal of creating bioidentical tissue for a variety of uses. Early successes have demonstrated distinct advantages over conventional tissue engineering strategies. Not surprisingly, there are current challenges to address before 3D bioprinting becomes clinically relevant. Here we provide an overview of 3D bioprinting technology and discuss key advances, clinical applications, and current limitations. While 3D bioprinting is a relatively novel tissue engineering strategy, it holds great potential to play a key role in personalized medicine.
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Affiliation(s)
- Elliot S Bishop
- Laboratory of Craniofacial Biology and Development, Section of Plastic and Reconstructive Surgery, Department of Surgery, The University of Chicago Medicine, Chicago, IL 60637, USA.,Molecular Oncology Laboratory, Department of Orthopedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL 60637, USA
| | - Sami Mostafa
- The University of Chicago Pritzker School of Medicine, Chicago, IL 60637, USA
| | - Mikhail Pakvasa
- The University of Chicago Pritzker School of Medicine, Chicago, IL 60637, USA
| | - Hue H Luu
- Molecular Oncology Laboratory, Department of Orthopedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL 60637, USA
| | - Michael J Lee
- Molecular Oncology Laboratory, Department of Orthopedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL 60637, USA
| | - Jennifer Moriatis Wolf
- Molecular Oncology Laboratory, Department of Orthopedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL 60637, USA
| | - Guillermo A Ameer
- Biomedical Engineering Department, Northwestern University, Evanston, IL 60208, USA.,Department of Surgery, Feinberg School of Medicine, Northwestern University, Chicago, IL 60616, USA
| | - Tong-Chuan He
- Molecular Oncology Laboratory, Department of Orthopedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL 60637, USA
| | - Russell R Reid
- Laboratory of Craniofacial Biology and Development, Section of Plastic and Reconstructive Surgery, Department of Surgery, The University of Chicago Medicine, Chicago, IL 60637, USA
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138
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Marcucio RS, Qin L, Alsberg E, Boerckel JD. Reverse engineering development: Crosstalk opportunities between developmental biology and tissue engineering. J Orthop Res 2017; 35:2356-2368. [PMID: 28660712 DOI: 10.1002/jor.23636] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/10/2017] [Accepted: 05/12/2017] [Indexed: 02/04/2023]
Abstract
The fields of developmental biology and tissue engineering have been revolutionized in recent years by technological advancements, expanded understanding, and biomaterials design, leading to the emerging paradigm of "developmental" or "biomimetic" tissue engineering. While developmental biology and tissue engineering have long overlapping histories, the fields have largely diverged in recent years at the same time that crosstalk opportunities for mutual benefit are more salient than ever. In this perspective article, we will use musculoskeletal development and tissue engineering as a platform on which to discuss these emerging crosstalk opportunities and will present our opinions on the bright future of these overlapping spheres of influence. The multicellular programs that control musculoskeletal development are rapidly becoming clarified, represented by shifting paradigms in our understanding of cellular function, identity, and lineage specification during development. Simultaneously, advancements in bioartificial matrices that replicate the biochemical, microstructural, and mechanical properties of developing tissues present new tools and approaches for recapitulating development in tissue engineering. Here, we introduce concepts and experimental approaches in musculoskeletal developmental biology and biomaterials design and discuss applications in tissue engineering as well as opportunities for tissue engineering approaches to inform our understanding of fundamental biology. © 2017 Orthopaedic Research Society. Published by Wiley Periodicals, Inc. J Orthop Res 35:2356-2368, 2017.
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Affiliation(s)
- Ralph S Marcucio
- Department of Orthopaedic Surgery, University of California San Francisco, San Francisco, California
| | - Ling Qin
- Department of Orthopaedic Surgery, Perelman School of Medicine, University of Pennsylvania, 36th Street and Hamilton Walk, Philadelphia 19104-6081, Pennsylvania
| | - Eben Alsberg
- Departments of Biomedical Engineering and Orthopaedic Surgery, Case Western Reserve University, Cleveland, Ohio
| | - Joel D Boerckel
- Department of Orthopaedic Surgery, Perelman School of Medicine, University of Pennsylvania, 36th Street and Hamilton Walk, Philadelphia 19104-6081, Pennsylvania.,Department of Bioengineering, University of Pennslyvania, Philadelphia, Pennsylvania.,Department of Aerospace and Mechanical Engineering, University of Notre Dame, Notre Dame, Indiana
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139
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Huang G, Li F, Zhao X, Ma Y, Li Y, Lin M, Jin G, Lu TJ, Genin GM, Xu F. Functional and Biomimetic Materials for Engineering of the Three-Dimensional Cell Microenvironment. Chem Rev 2017; 117:12764-12850. [PMID: 28991456 PMCID: PMC6494624 DOI: 10.1021/acs.chemrev.7b00094] [Citation(s) in RCA: 469] [Impact Index Per Article: 67.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
The cell microenvironment has emerged as a key determinant of cell behavior and function in development, physiology, and pathophysiology. The extracellular matrix (ECM) within the cell microenvironment serves not only as a structural foundation for cells but also as a source of three-dimensional (3D) biochemical and biophysical cues that trigger and regulate cell behaviors. Increasing evidence suggests that the 3D character of the microenvironment is required for development of many critical cell responses observed in vivo, fueling a surge in the development of functional and biomimetic materials for engineering the 3D cell microenvironment. Progress in the design of such materials has improved control of cell behaviors in 3D and advanced the fields of tissue regeneration, in vitro tissue models, large-scale cell differentiation, immunotherapy, and gene therapy. However, the field is still in its infancy, and discoveries about the nature of cell-microenvironment interactions continue to overturn much early progress in the field. Key challenges continue to be dissecting the roles of chemistry, structure, mechanics, and electrophysiology in the cell microenvironment, and understanding and harnessing the roles of periodicity and drift in these factors. This review encapsulates where recent advances appear to leave the ever-shifting state of the art, and it highlights areas in which substantial potential and uncertainty remain.
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Affiliation(s)
- Guoyou Huang
- MOE Key Laboratory of Biomedical Information
Engineering, School of Life Science and Technology, Xi’an Jiaotong
University, Xi’an 710049, People’s Republic of China
- Bioinspired Engineering and Biomechanics Center
(BEBC), Xi’an Jiaotong University, Xi’an 710049, People’s
Republic of China
| | - Fei Li
- Bioinspired Engineering and Biomechanics Center
(BEBC), Xi’an Jiaotong University, Xi’an 710049, People’s
Republic of China
- Department of Chemistry, School of Science,
Xi’an Jiaotong University, Xi’an 710049, People’s Republic
of China
| | - Xin Zhao
- Bioinspired Engineering and Biomechanics Center
(BEBC), Xi’an Jiaotong University, Xi’an 710049, People’s
Republic of China
- Interdisciplinary Division of Biomedical
Engineering, The Hong Kong Polytechnic University, Hung Hom, Hong Kong,
People’s Republic of China
| | - Yufei Ma
- MOE Key Laboratory of Biomedical Information
Engineering, School of Life Science and Technology, Xi’an Jiaotong
University, Xi’an 710049, People’s Republic of China
- Bioinspired Engineering and Biomechanics Center
(BEBC), Xi’an Jiaotong University, Xi’an 710049, People’s
Republic of China
| | - Yuhui Li
- MOE Key Laboratory of Biomedical Information
Engineering, School of Life Science and Technology, Xi’an Jiaotong
University, Xi’an 710049, People’s Republic of China
- Bioinspired Engineering and Biomechanics Center
(BEBC), Xi’an Jiaotong University, Xi’an 710049, People’s
Republic of China
| | - Min Lin
- MOE Key Laboratory of Biomedical Information
Engineering, School of Life Science and Technology, Xi’an Jiaotong
University, Xi’an 710049, People’s Republic of China
- Bioinspired Engineering and Biomechanics Center
(BEBC), Xi’an Jiaotong University, Xi’an 710049, People’s
Republic of China
| | - Guorui Jin
- MOE Key Laboratory of Biomedical Information
Engineering, School of Life Science and Technology, Xi’an Jiaotong
University, Xi’an 710049, People’s Republic of China
- Bioinspired Engineering and Biomechanics Center
(BEBC), Xi’an Jiaotong University, Xi’an 710049, People’s
Republic of China
| | - Tian Jian Lu
- Bioinspired Engineering and Biomechanics Center
(BEBC), Xi’an Jiaotong University, Xi’an 710049, People’s
Republic of China
- MOE Key Laboratory for Multifunctional Materials
and Structures, Xi’an Jiaotong University, Xi’an 710049,
People’s Republic of China
| | - Guy M. Genin
- MOE Key Laboratory of Biomedical Information
Engineering, School of Life Science and Technology, Xi’an Jiaotong
University, Xi’an 710049, People’s Republic of China
- Bioinspired Engineering and Biomechanics Center
(BEBC), Xi’an Jiaotong University, Xi’an 710049, People’s
Republic of China
- Department of Mechanical Engineering &
Materials Science, Washington University in St. Louis, St. Louis 63130, MO,
USA
- NSF Science and Technology Center for
Engineering MechanoBiology, Washington University in St. Louis, St. Louis 63130,
MO, USA
| | - Feng Xu
- MOE Key Laboratory of Biomedical Information
Engineering, School of Life Science and Technology, Xi’an Jiaotong
University, Xi’an 710049, People’s Republic of China
- Bioinspired Engineering and Biomechanics Center
(BEBC), Xi’an Jiaotong University, Xi’an 710049, People’s
Republic of China
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140
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Nie S, Qin H, Li L, Zhang C, Yan W, Liu Y, Luo J, Chen P. Influence of brush length of PVP chains immobilized on silicon wafers on their blood compatibility. POLYM ADVAN TECHNOL 2017. [DOI: 10.1002/pat.4192] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Shengqiang Nie
- Engineering Research Center for Materials Protection of Wear and Corrosion of Guizhou Province; University of Guizhou Province, College of Chemistry and Materials Engineering, Guiyang University; Guiyang 550000 China
| | - Hui Qin
- Engineering Research Center for Materials Protection of Wear and Corrosion of Guizhou Province; University of Guizhou Province, College of Chemistry and Materials Engineering, Guiyang University; Guiyang 550000 China
| | - Lulu Li
- Avic Cheng Du Aircraft Industry (Group) CO., TD; Chengdu 610000 China
| | - Chunmei Zhang
- Engineering Research Center for Materials Protection of Wear and Corrosion of Guizhou Province; University of Guizhou Province, College of Chemistry and Materials Engineering, Guiyang University; Guiyang 550000 China
| | - Wei Yan
- Engineering Research Center for Materials Protection of Wear and Corrosion of Guizhou Province; University of Guizhou Province, College of Chemistry and Materials Engineering, Guiyang University; Guiyang 550000 China
| | - Yuan Liu
- Engineering Research Center for Materials Protection of Wear and Corrosion of Guizhou Province; University of Guizhou Province, College of Chemistry and Materials Engineering, Guiyang University; Guiyang 550000 China
| | - Jun Luo
- Engineering Research Center for Materials Protection of Wear and Corrosion of Guizhou Province; University of Guizhou Province, College of Chemistry and Materials Engineering, Guiyang University; Guiyang 550000 China
| | - Ping Chen
- Engineering Research Center for Materials Protection of Wear and Corrosion of Guizhou Province; University of Guizhou Province, College of Chemistry and Materials Engineering, Guiyang University; Guiyang 550000 China
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141
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Kolawole OM, Lau WM, Mostafid H, Khutoryanskiy VV. Advances in intravesical drug delivery systems to treat bladder cancer. Int J Pharm 2017; 532:105-117. [DOI: 10.1016/j.ijpharm.2017.08.120] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2017] [Revised: 08/23/2017] [Accepted: 08/24/2017] [Indexed: 12/21/2022]
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142
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Yeh YC, Corbin EA, Caliari SR, Ouyang L, Vega SL, Truitt R, Han L, Margulies KB, Burdick JA. Mechanically dynamic PDMS substrates to investigate changing cell environments. Biomaterials 2017; 145:23-32. [PMID: 28843064 DOI: 10.1016/j.biomaterials.2017.08.033] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2017] [Revised: 07/28/2017] [Accepted: 08/16/2017] [Indexed: 01/06/2023]
Abstract
Mechanics of the extracellular matrix (ECM) play a pivotal role in governing cell behavior, such as cell spreading and differentiation. ECM mechanics have been recapitulated primarily in elastic hydrogels, including with dynamic properties to mimic complex behaviors (e.g., fibrosis); however, these dynamic hydrogels fail to introduce the viscoelastic nature of many tissues. Here, we developed a two-step crosslinking strategy to first form (via platinum-catalyzed crosslinking) networks of polydimethylsiloxane (PDMS) and then to increase PDMS crosslinking (via thiol-ene click reaction) in a temporally-controlled manner. This photoinitiated reaction increased the compressive modulus of PDMS up to 10-fold within minutes and was conducted under cytocompatible conditions. With stiffening, cells displayed increased spreading, changing from ∼1300 to 1900 μm2 and from ∼2700 to 4600 μm2 for fibroblasts and mesenchymal stem cells, respectively. In addition, higher myofibroblast activation (from ∼2 to 20%) for cardiac fibroblasts was observed with increasing PDMS substrate stiffness. These results indicate a cellular response to changes in PDMS substrate mechanics, along with a demonstration of a mechanically dynamic and photoresponsive PDMS substrate platform to model the dynamic behavior of ECM.
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Affiliation(s)
- Yi-Cheun Yeh
- Department of Bioengineering, University of Pennsylvania, Philadelphia, PA, USA
| | - Elise A Corbin
- Cardiovascular Institute, University of Pennsylvania, Philadelphia, PA, USA
| | - Steven R Caliari
- Department of Bioengineering, University of Pennsylvania, Philadelphia, PA, USA
| | - Liu Ouyang
- School of Biomedical Engineering, Science and Health Systems, Drexel University, Philadelphia, PA, USA
| | - Sebastián L Vega
- Department of Bioengineering, University of Pennsylvania, Philadelphia, PA, USA
| | - Rachel Truitt
- Department of Bioengineering, University of Pennsylvania, Philadelphia, PA, USA; Cardiovascular Institute, University of Pennsylvania, Philadelphia, PA, USA
| | - Lin Han
- School of Biomedical Engineering, Science and Health Systems, Drexel University, Philadelphia, PA, USA
| | | | - Jason A Burdick
- Department of Bioengineering, University of Pennsylvania, Philadelphia, PA, USA.
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143
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Zhang YS, Pi Q, van Genderen AM. Microfluidic Bioprinting for Engineering Vascularized Tissues and Organoids. J Vis Exp 2017:55957. [PMID: 28829418 PMCID: PMC5614273 DOI: 10.3791/55957] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Engineering vascularized tissue constructs and organoids has been historically challenging. Here we describe a novel method based on microfluidic bioprinting to generate a scaffold with multilayer interlacing hydrogel microfibers. To achieve smooth bioprinting, a core-sheath microfluidic printhead containing a composite bioink formulation extruded from the core flow and the crosslinking solution carried by the sheath flow, was designed and fitted onto the bioprinter. By blending gelatin methacryloyl (GelMA) with alginate, a polysaccharide that undergoes instantaneous ionic crosslinking in the presence of select divalent ions, followed by a secondary photocrosslinking of the GelMA component to achieve permanent stabilization, a microfibrous scaffold could be obtained using this bioprinting strategy. Importantly, the endothelial cells encapsulated inside the bioprinted microfibers can form the lumen-like structures resembling the vasculature over the course of culture for 16 days. The endothelialized microfibrous scaffold may be further used as a vascular bed to construct a vascularized tissue through subsequent seeding of the secondary cell type into the interstitial space of the microfibers. Microfluidic bioprinting provides a generalized strategy in convenient engineering of vascularized tissues at high fidelity.
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Affiliation(s)
- Yu Shrike Zhang
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School;
| | - Qingmeng Pi
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School; Department of Plastic and Reconstructive Surgery, Renji Hospital, Shanghai Jiao Tong University School of Medicine
| | - Anne Metje van Genderen
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School; Division of Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Utrecht University
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144
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Cipitria A, Salmeron-Sanchez M. Mechanotransduction and Growth Factor Signalling to Engineer Cellular Microenvironments. Adv Healthc Mater 2017; 6. [PMID: 28792683 DOI: 10.1002/adhm.201700052] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2017] [Revised: 03/20/2017] [Indexed: 12/20/2022]
Abstract
Engineering cellular microenvironments involves biochemical factors, the extracellular matrix (ECM) and the interaction with neighbouring cells. This progress report provides a critical overview of key studies that incorporate growth factor (GF) signalling and mechanotransduction into the design of advanced microenvironments. Materials systems have been developed for surface-bound presentation of GFs, either covalently tethered or sequestered through physico-chemical affinity to the matrix, as an alternative to soluble GFs. Furthermore, some materials contain both GF and integrin binding regions and thereby enable synergistic signalling between the two. Mechanotransduction refers to the ability of the cells to sense physical properties of the ECM and to transduce them into biochemical signals. Various aspects of the physics of the ECM, i.e. stiffness, geometry and ligand spacing, as well as time-dependent properties, such as matrix stiffening, degradability, viscoelasticity, surface mobility as well as spatial patterns and gradients of physical cues are discussed. To conclude, various examples illustrate the potential for cooperative signalling of growth factors and the physical properties of the microenvironment for potential applications in regenerative medicine, cancer research and drug testing.
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Affiliation(s)
- Amaia Cipitria
- Julius Wolff Institute & Center for Musculoskeletal Surgery; Charité - Universitätsmedizin Berlin; 13353 Berlin Germany
- Berlin-Brandenburg Center for Regenerative Therapies; Charité - Universitätsmedizin Berlin; 13353 Berlin Germany
| | - Manuel Salmeron-Sanchez
- Division of Biomedical Engineering; School of Engineering; University of Glasgow; Glasgow G128LT UK
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145
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Abstract
Wound healing is one of the most complex processes that our bodies must perform. While our ability to repair wounds is often taken for granted, conditions such as diabetes, obesity, or simply old age can significantly impair this process. With the incidence of all three predicted to continue growing into the foreseeable future, there is an increasing push to develop strategies that facilitate healing. Biomaterials are an attractive approach for modulating all aspects of repair, and have the potential to steer the healing process towards regeneration. In this review, we will cover recent advances in developing biomaterials that actively modulate the process of wound healing, and will provide insight into how biomaterials can be used to simultaneously rewire multiple phases of the repair process.
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Affiliation(s)
- Anna Stejskalová
- Department of Bioengineering, Royal School of Mines, Imperial College London, London SW7 2AZ, UK.
| | - Benjamin D Almquist
- Department of Bioengineering, Royal School of Mines, Imperial College London, London SW7 2AZ, UK.
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146
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Masoumi N, Copper D, Chen P, Cubberley A, Guo K, Lin RZ, Ahmed B, Martin D, Aikawa E, Melero-Martin J, Mayer J. Elastomeric Fibrous Hybrid Scaffold Supports In Vitro and In Vivo Tissue Formation. ADVANCED FUNCTIONAL MATERIALS 2017; 27:1606614. [PMID: 32863817 PMCID: PMC7450820 DOI: 10.1002/adfm.201606614] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Biomimetic materials with biomechanical properties resembling those of native tissues while providing an environment for cell growth and tissue formation, are vital for tissue engineering (TE). Mechanical anisotropy is an important property of native cardiovascular tissues and directly influences tissue function. This study reports fabrication of anisotropic cell-seeded constructs while retaining control over the construct's architecture and distribution of cells. Newly synthesized poly-4-hydroxybutyrate (P4HB) is fabricated with a dry spinning technique to create anelastomeric fibrous scaffold that allows control of fiber diameter, porosity, and rate ofdegradation. To allow cell and tissue ingrowth, hybrid scaffolds with mesenchymalstem cells (MSCs) encapsulated in a photocrosslinkable hydrogel were developed. Culturing the cellularized scaffolds in a cyclic stretch/flexure bioreactor resulted in tissue formation and confirmed the scaffold's performance under mechanical stimulation. In vivo experiments showed that the hybrid scaffold is capable of withstanding physiological pressures when implanted as a patch in the pulmonary artery. Aligned tissue formation occurred on the scaffold luminal surface without macroscopic thrombus formation. This combination of a novel, anisotropic fibrous scaffold and a tunable native-like hydrogel for cellular encapsulation promoted formation of 3D tissue and provides a biologically functional composite scaffold for soft-tissue engineering applications.
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Affiliation(s)
- Nafiseh Masoumi
- Department of Cardiac Surgery, Boston Children's Hospital, 300 Longwood Avenue, Boston, MA 02115, USA
| | - Dane Copper
- Department of Cardiac Surgery, Boston Children's Hospital, 300 Longwood Avenue, Boston, MA 02115, USA
| | - Peter Chen
- Department of Cardiac Surgery, Boston Children's Hospital, 300 Longwood Avenue, Boston, MA 02115, USA
| | - Alexander Cubberley
- Department of Cardiac Surgery, Boston Children's Hospital, 300 Longwood Avenue, Boston, MA 02115, USA
| | - Kai Guo
- Tepha, Inc., Lexington, MA 02421, USA
| | - Ruei-Zeng Lin
- Department of Cardiac Surgery, Boston Children's Hospital, 300 Longwood Avenue, Boston, MA 02115, USA
| | - Bayoumi Ahmed
- Department of Cardiac Surgery, Boston Children's Hospital, 300 Longwood Avenue, Boston, MA 02115, USA
| | | | - Elena Aikawa
- Harvard Medical School, Longwood Avenue, Boston, MA 02115, USA
| | - Juan Melero-Martin
- Department of Cardiac Surgery, Boston Children's Hospital, 300 Longwood Avenue, Boston, MA 02115, USA
| | - John Mayer
- Department of Cardiac Surgery, Boston Children's Hospital, 300 Longwood Avenue, Boston, MA 02115, USA
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147
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Sridhar SL, Schneider MC, Chu S, de Roucy G, Bryant SJ, Vernerey FJ. Heterogeneity is key to hydrogel-based cartilage tissue regeneration. SOFT MATTER 2017; 13:4841-4855. [PMID: 28613313 PMCID: PMC5552053 DOI: 10.1039/c7sm00423k] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
Degradable hydrogels have been developed to provide initial mechanical support to encapsulated cells while facilitating the growth of neo-tissues. When cells are encapsulated within degradable hydrogels, the process of neo-tissue growth is complicated by the coupled phenomena of transport of large extracellular matrix macromolecules and the rate of hydrogel degradation. If hydrogel degradation is too slow, neo-tissue growth is hindered, whereas if it is too fast, complete loss of mechanical integrity can occur. Therefore, there is a need for effective modelling techniques to predict hydrogel designs based on the growth parameters of the neo-tissue. In this article, hydrolytically degradable hydrogels are investigated due to their promise in tissue engineering. A key output of the model focuses on the ability of the construct to maintain overall structural integrity as the construct transitions from a pure hydrogel to engineered neo-tissue. We show that heterogeneity in cross-link density and cell distribution is the key to this successful transition and ultimately to achieve tissue growth. Specifically, we find that optimally large regions of weak cross-linking around cells in the hydrogel and well-connected and dense cell clusters create the optimum conditions needed for neo-tissue growth while maintaining structural integrity. Experimental observations using cartilage cells encapsulated in a hydrolytically degradable hydrogel are compared with model predictions to show the potential of the proposed model.
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Affiliation(s)
| | - Margaret C. Schneider
- Department of Chemical and Biological Engineering, University of Colorado Boulder, USA
| | - Stanley Chu
- Department of Chemical and Biological Engineering, University of Colorado Boulder, USA
| | - Gaspard de Roucy
- Department of Mechanical Engineering, University of Colorado Boulder, USA
| | - Stephanie J. Bryant
- Department of Chemical and Biological Engineering, University of Colorado Boulder, USA
- Material Science and Engineering Program, University of Colorado Boulder, USA
- BioFrontiers Institute, University of Colorado Boulder, USA
| | - Franck J. Vernerey
- Department of Mechanical Engineering, University of Colorado Boulder, USA
- Material Science and Engineering Program, University of Colorado Boulder, USA
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148
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Zhang C, Li M, Zhu J, Luo F, Zhao J. Enhanced bone repair induced by human adipose-derived stem cells on osteogenic extracellular matrix ornamented small intestinal submucosa. Regen Med 2017; 12:541-552. [PMID: 28718708 DOI: 10.2217/rme-2017-0024] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
AIM Our aim was to design an osteogenic extracellular matrix (ECM) coated bioscaffold and to apply it to critical bone defect repair with adipose-derived stem cells (ADSCs). MATERIALS & METHODS Morphology of scaffolds was scanned by scanning electron microscope. Cell adhesion, proliferation and osteogenic differentiation of ADSCs on ECM-small intestinal submucosa (SIS) were evaluated by immunofluorescences staining, cell counting kit-8 and real-time qPCR, respectively. A mouse calvarial defect model was used to assess effects on bone regeneration in vivo. RESULTS Abundant ECM was coated on SIS, which facilitated cell adhesion and proliferation of ADSCs. ECM-SIS induced osteogenic differentiation of ADSCs even without osteogenic inductive factors. Bone regeneration in vivo was enhanced by ECM-SIS + ADSCs via BMP/SMAD pathway. CONCLUSION This work suggested a biofabricated SIS scaffold coated with osteogenic ECM-facilitated bone regeneration with ADSCs synergistically.
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Affiliation(s)
- Chi Zhang
- Zhejiang Key Laboratory of Pathophysiology, Medical School, Ningbo University, Ningbo, Zhejiang 315211, People's Republic of China
| | - Mei Li
- Zhejiang Key Laboratory of Pathophysiology, Medical School, Ningbo University, Ningbo, Zhejiang 315211, People's Republic of China.,Ningbo Institute of Medical Sciences, Ningbo, Zhejiang 315020, People's Republic of China
| | - Jinjin Zhu
- Zhejiang Key Laboratory of Pathophysiology, Medical School, Ningbo University, Ningbo, Zhejiang 315211, People's Republic of China
| | - Fangmiao Luo
- Zhejiang Key Laboratory of Pathophysiology, Medical School, Ningbo University, Ningbo, Zhejiang 315211, People's Republic of China
| | - Jiyuan Zhao
- Zhejiang Key Laboratory of Pathophysiology, Medical School, Ningbo University, Ningbo, Zhejiang 315211, People's Republic of China
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149
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Fibronectin, the extracellular glue. Matrix Biol 2017; 60-61:27-37. [DOI: 10.1016/j.matbio.2016.07.011] [Citation(s) in RCA: 180] [Impact Index Per Article: 25.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2016] [Revised: 07/22/2016] [Accepted: 07/30/2016] [Indexed: 12/13/2022]
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150
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Jeong KH, Park D, Lee YC. Polymer-based hydrogel scaffolds for skin tissue engineering applications: a mini-review. JOURNAL OF POLYMER RESEARCH 2017. [DOI: 10.1007/s10965-017-1278-4] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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