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Abstract
Organs-on-chips are broadly defined as microfabricated surfaces or devices designed to engineer cells into microscale tissues with native-like features and then extract physiologically relevant readouts at scale. Because they are generally compatible with patient-derived cells, these technologies can address many of the human relevance limitations of animal models. As a result, organs-on-chips have emerged as a promising new paradigm for patient-specific disease modeling and drug development. Because neuromuscular diseases span a broad range of rare conditions with diverse etiology and complex pathophysiology, they have been especially challenging to model in animals and thus are well suited for organ-on-chip approaches. In this Review, we first briefly summarize the challenges in neuromuscular disease modeling with animal models. Next, we describe a variety of existing organ-on-chip approaches for neuromuscular tissues, including a survey of cell sources for both muscle and nerve, and two- and three-dimensional neuromuscular tissue-engineering techniques. Although researchers have made tremendous advances in modeling neuromuscular diseases on a chip, the remaining challenges in cell sourcing, cell maturity, tissue assembly and readout capabilities limit their integration into the drug development pipeline today. However, as the field advances, models of healthy and diseased neuromuscular tissues on a chip, coupled with animal models, have vast potential as complementary tools for modeling multiple aspects of neuromuscular diseases and identifying new therapeutic strategies. Summary: Modeling neuromuscular diseases is challenging due to their complex etiology and pathophysiology. Here, we review the cell sources and tissue-engineering procedures that are being integrated as emerging neuromuscular disease models.
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Affiliation(s)
- Jeffrey W Santoso
- Laboratory for Living Systems Engineering, Department of Biomedical Engineering, USC Viterbi School of Engineering, University of Southern California, Los Angeles, CA 90089, USA
| | - Megan L McCain
- Laboratory for Living Systems Engineering, Department of Biomedical Engineering, USC Viterbi School of Engineering, University of Southern California, Los Angeles, CA 90089, USA .,Department of Stem Cell Biology and Regenerative Medicine, Keck School of Medicine of USC, University of Southern California, Los Angeles, CA 90033, USA
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202
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Montesdeoca CYC, Afewerki S, Stocco TD, Corat MAF, de Paula MMM, Marciano FR, Lobo AO. Oxygen-generating smart hydrogels supporting chondrocytes survival in oxygen-free environments. Colloids Surf B Biointerfaces 2020; 194:111192. [PMID: 32599503 DOI: 10.1016/j.colsurfb.2020.111192] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Revised: 06/09/2020] [Accepted: 06/10/2020] [Indexed: 12/14/2022]
Abstract
Cartilage is one of our body's tissues which are not repaired automatically by itself. Problems associated with cartilage are very common worldwide and are considered the leading cause of pain and disability. Smart biomaterial or "Four dimensional" (4D) biomaterials has started emerging as a suitable candidate, which are principally three dimensional (3D) materials that change their morphology or generate a response measured at space and time to physiologic stimuli. In this context, the release of oxygen through hydrogels in contact with water is considered as 4D biomaterials. The objective of this study is to develop strategies to release oxygen in a sustainable and prolonged manner through hydrogels systems to promote chondrocytes survival in oxygen-free environment. The 4D biomaterials are engineered from gelatin methacryloyl (GelMA) loaded with calcium peroxide (CPO), which have the ability to generate oxygen in a controlled and sustained manner for up to 6 days. The incorporation of CPO into the hydrogel system provided materials with enhanced mechanical and porosity properties. Furthermore, the hydrogels promoted chondrocyte survival and reduced cell death under oxygen-free conditions.
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Affiliation(s)
| | - Samson Afewerki
- Division of Engineering in Medicine, Department of Medicine, Brigham & Women´s Hospital, Harvard Medical School, Cambridge, MA, 02139, USA; Harvard-MIT Division of Health Science and Technology, MIT - Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Thiago Domingues Stocco
- Faculty of Medical Sciences, UNICAMP - State University of Campinas, 13083-970, Campinas, SP, Brazil; University of Santo Amaro, São Paulo, SP, 04829-300, Brazil
| | - Marcus Alexandre Finzi Corat
- Multidisciplinary Center for Biological Research, UNICAMP - State University of Campinas, Campinas, SP, 13083-877, Brazil
| | | | | | - Anderson Oliveira Lobo
- LIMAV - Interdisciplinary Laboratory for Advanced Materials, BioMatLab, UFPI - Federal University of Piauí, Teresina, PI, 64049-550, Brazil.
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203
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204
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GelMA combined with sustained release of HUVECs derived exosomes for promoting cutaneous wound healing and facilitating skin regeneration. J Mol Histol 2020; 51:251-263. [PMID: 32388839 DOI: 10.1007/s10735-020-09877-6] [Citation(s) in RCA: 70] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2020] [Accepted: 05/04/2020] [Indexed: 12/24/2022]
Abstract
It remains a clinical challenge for cutaneous wound healing and skin regeneration. Endothelial cells participate in the formation of blood vessels and play an important role in the whole process of wound healing. Recent studies suggested that exosomes contribute to the intercellular communication through paracrine pathways, and sustained release of exosomes from hydrogel-based materials provide a promising strategy for curing wound defects. In this study, we isolated exosomes derived from human umbilical vein endothelial cells (HUVECs) and found that HUVECs derived exosomes (HUVECs-Exos) could promote the proliferation and migration activities of keratinocytes and fibroblasts, which are two important effector cells for skin regeneration. Then we developed gelatin methacryloyl (GelMA) hydrogel as the wound dressing to incorporate HUVECs-Exos and applied it to the full-thickness cutaneous wounds. It demonstrated that GelMA scaffold could not only repair the wound defect, but also achieve sustained release of exosomes. The in vivo results showed accelerated re-epithelialization, promotion of collagen maturity and improvement of angiogenesis. Collectively, our findings suggested that HUVECs-Exos could accelerate wound healing and GelMA mediated controlled release of HUVECs-Exos might offer a new method for repairing cutaneous wound defects.
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205
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O'Grady BJ, Lippmann ES. Recent Advancements in Engineering Strategies for Manipulating Neural Stem Cell Behavior. ACTA ACUST UNITED AC 2020; 1:41-47. [PMID: 33748772 DOI: 10.1007/s43152-020-00003-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Purpose of Review Stem cells are exquisitely sensitive to biophysical and biochemical cues within the native microenvironment. This review focuses on emerging strategies to manipulate neural cell behavior using these influences in three-dimensional (3D) culture systems. Recent Findings Traditional systems for neural cell differentiation typically produce heterogeneous populations with limited diversity rather than the complex, organized tissue structures observed in vivo. Advancements in developing engineering tools to direct neural cell fates can enable new applications in basic research, disease modeling, and regenerative medicine. Summary This review article highlights engineering strategies that facilitate controlled presentation of biophysical and biochemical cues to guide differentiation and impart desired phenotypes on neural cell populations. Specific highlighted examples include engineered biomaterials and microfluidic platforms for spatiotemporal control over the presentation of morphogen gradients.
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Affiliation(s)
- Brian J O'Grady
- Department of Chemical and Biomolecular Engineering, Vanderbilt University, Nashville, TN, USA
| | - Ethan S Lippmann
- Department of Chemical and Biomolecular Engineering, Vanderbilt University, Nashville, TN, USA
- Department of Biomedical Engineering, Vanderbilt University, Nashville, TN, USA
- Vanderbilt Brain Institute, Vanderbilt University, Nashville, TN, USA
- Interdisciplinary Materials Science Program, Vanderbilt University, Nashville, TN, USA
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206
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Zhu J, Zhou X, Kim HJ, Qu M, Jiang X, Lee K, Ren L, Wu Q, Wang C, Zhu X, Tebon P, Zhang S, Lee J, Ashammakhi N, Ahadian S, Dokmeci MR, Gu Z, Sun W, Khademhosseini A. Gelatin Methacryloyl Microneedle Patches for Minimally Invasive Extraction of Skin Interstitial Fluid. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2020; 16:e1905910. [PMID: 32101371 PMCID: PMC7182487 DOI: 10.1002/smll.201905910] [Citation(s) in RCA: 87] [Impact Index Per Article: 21.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2019] [Revised: 01/23/2020] [Indexed: 05/18/2023]
Abstract
The extraction of interstitial fluid (ISF) from skin using microneedles (MNs) has attracted growing interest in recent years due to its potential for minimally invasive diagnostics and biosensors. ISF collection by absorption into a hydrogel MN patch is a promising way that requires the materials to have outstanding swelling ability. Here, a gelatin methacryloyl (GelMA) patch is developed with an 11 × 11 array of MNs for minimally invasive sampling of ISF. The properties of the patch can be tuned by altering the concentration of the GelMA prepolymer and the crosslinking time; patches are created with swelling ratios between 293% and 423% and compressive moduli between 3.34 MPa and 7.23 MPa. The optimized GelMA MN patch demonstrates efficient extraction of ISF. Furthermore, it efficiently and quantitatively detects glucose and vancomycin in ISF in an in vivo study. This minimally invasive approach of extracting ISF with a GelMA MN patch has the potential to complement blood sampling for the monitoring of target molecules from patients.
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Affiliation(s)
- Jixiang Zhu
- Department of Bioengineering, Henry Samueli School of Engineering and Applied Sciences, University of California, Los Angeles, Los Angeles, CA 90095, USA
- Center for Minimally Invasive Therapeutics (C-MIT), University of California, Los Angeles, Los Angeles, CA 90095, USA
- Department of Biomedical Engineering, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou 511436, China
- Affiliated Stomatology Hospital of Guangzhou Medical University, Guangzhou 511436, China
| | - Xingwu Zhou
- Department of Bioengineering, Henry Samueli School of Engineering and Applied Sciences, University of California, Los Angeles, Los Angeles, CA 90095, USA
- Center for Minimally Invasive Therapeutics (C-MIT), University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Han-Jun Kim
- Department of Bioengineering, Henry Samueli School of Engineering and Applied Sciences, University of California, Los Angeles, Los Angeles, CA 90095, USA
- Center for Minimally Invasive Therapeutics (C-MIT), University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Moyuan Qu
- Department of Bioengineering, Henry Samueli School of Engineering and Applied Sciences, University of California, Los Angeles, Los Angeles, CA 90095, USA
- Center for Minimally Invasive Therapeutics (C-MIT), University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Xing Jiang
- Department of Bioengineering, Henry Samueli School of Engineering and Applied Sciences, University of California, Los Angeles, Los Angeles, CA 90095, USA
- Center for Minimally Invasive Therapeutics (C-MIT), University of California, Los Angeles, Los Angeles, CA 90095, USA
- School of Nursing, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - KangJu Lee
- Department of Bioengineering, Henry Samueli School of Engineering and Applied Sciences, University of California, Los Angeles, Los Angeles, CA 90095, USA
- Center for Minimally Invasive Therapeutics (C-MIT), University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Li Ren
- Department of Bioengineering, Henry Samueli School of Engineering and Applied Sciences, University of California, Los Angeles, Los Angeles, CA 90095, USA
- Center for Minimally Invasive Therapeutics (C-MIT), University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Qingzhi Wu
- Department of Bioengineering, Henry Samueli School of Engineering and Applied Sciences, University of California, Los Angeles, Los Angeles, CA 90095, USA
- Center for Minimally Invasive Therapeutics (C-MIT), University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Canran Wang
- Department of Bioengineering, Henry Samueli School of Engineering and Applied Sciences, University of California, Los Angeles, Los Angeles, CA 90095, USA
- Center for Minimally Invasive Therapeutics (C-MIT), University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Xunmin Zhu
- Department of Biomedical Engineering, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou 511436, China
- Affiliated Stomatology Hospital of Guangzhou Medical University, Guangzhou 511436, China
| | - Peyton Tebon
- Department of Bioengineering, Henry Samueli School of Engineering and Applied Sciences, University of California, Los Angeles, Los Angeles, CA 90095, USA
- Center for Minimally Invasive Therapeutics (C-MIT), University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Shiming Zhang
- Department of Bioengineering, Henry Samueli School of Engineering and Applied Sciences, University of California, Los Angeles, Los Angeles, CA 90095, USA
- Center for Minimally Invasive Therapeutics (C-MIT), University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Junmin Lee
- Department of Bioengineering, Henry Samueli School of Engineering and Applied Sciences, University of California, Los Angeles, Los Angeles, CA 90095, USA
- Center for Minimally Invasive Therapeutics (C-MIT), University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Nureddin Ashammakhi
- Department of Bioengineering, Henry Samueli School of Engineering and Applied Sciences, University of California, Los Angeles, Los Angeles, CA 90095, USA
- Center for Minimally Invasive Therapeutics (C-MIT), University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Samad Ahadian
- Department of Bioengineering, Henry Samueli School of Engineering and Applied Sciences, University of California, Los Angeles, Los Angeles, CA 90095, USA
- Center for Minimally Invasive Therapeutics (C-MIT), University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Mehmet Remzi Dokmeci
- Department of Bioengineering, Henry Samueli School of Engineering and Applied Sciences, University of California, Los Angeles, Los Angeles, CA 90095, USA
- Center for Minimally Invasive Therapeutics (C-MIT), University of California, Los Angeles, Los Angeles, CA 90095, USA
- Department of Radiology, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Zhen Gu
- Department of Bioengineering, Henry Samueli School of Engineering and Applied Sciences, University of California, Los Angeles, Los Angeles, CA 90095, USA
- Center for Minimally Invasive Therapeutics (C-MIT), University of California, Los Angeles, Los Angeles, CA 90095, USA
- Jonsson Comprehensive Cancer Center, University of California, Los Angeles, Los Angeles, CA90095, USA
- California NanoSystems Institute, University of California, Los Angeles, Los Angeles, CA90095, USA
| | - Wujin Sun
- Department of Bioengineering, Henry Samueli School of Engineering and Applied Sciences, University of California, Los Angeles, Los Angeles, CA 90095, USA
- Center for Minimally Invasive Therapeutics (C-MIT), University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Ali Khademhosseini
- Department of Bioengineering, Henry Samueli School of Engineering and Applied Sciences, University of California, Los Angeles, Los Angeles, CA 90095, USA
- Center for Minimally Invasive Therapeutics (C-MIT), University of California, Los Angeles, Los Angeles, CA 90095, USA
- Jonsson Comprehensive Cancer Center, University of California, Los Angeles, Los Angeles, CA90095, USA
- California NanoSystems Institute, University of California, Los Angeles, Los Angeles, CA90095, USA
- Department of Radiology, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA 90095, USA
- Department of Chemical and Biomolecular Engineering, Henry Samueli School of Engineering and Applied Sciences, University of California, Los Angeles, Los Angeles, CA 90095, USA
- California NanoSystems Institute, University of California, Los Angeles, Los Angeles, CA90095, USA
- Center of Nanotechnology, Department of Physics, King Abdulaziz University, Jeddah 21569, Saudi Arabia
- Department of Bioindustrial Technologies, College of Animal Bioscience and Technology, Konkuk University, Seoul 143701, Republic of Korea
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207
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Xu B, Ye J, Yuan FZ, Zhang JY, Chen YR, Fan BS, Jiang D, Jiang WB, Wang X, Yu JK. Advances of Stem Cell-Laden Hydrogels With Biomimetic Microenvironment for Osteochondral Repair. Front Bioeng Biotechnol 2020; 8:247. [PMID: 32296692 PMCID: PMC7136426 DOI: 10.3389/fbioe.2020.00247] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2020] [Accepted: 03/10/2020] [Indexed: 12/12/2022] Open
Abstract
Osteochondral damage from trauma or osteoarthritis is a general joint disease that can lead to an increased social and economic burden in the modern society. The inefficiency of osteochondral defects is mainly due to the absence of suitable tissue-engineered substrates promoting tissue regeneration and replacing damaged areas. The hydrogels are becoming a promising kind of biomaterials for tissue regeneration. The biomimetic hydrogel microenvironment can be tightly controlled by modulating a number of biophysical and biochemical properties, including matrix mechanics, degradation, microstructure, cell adhesion, and intercellular interactions. In particular, advances in stem cell-laden hydrogels have offered new ideas for the cell therapy and osteochondral repair. Herein, the aim of this review is to underpin the importance of stem cell-laden hydrogels on promoting the development of osteochondral regeneration, especially in the field of manipulation of biomimetic microenvironment and utilization growth factors with various delivery methods.
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Affiliation(s)
- Bingbing Xu
- Knee Surgery Department of the Institute of Sports Medicine, Peking University Third Hospital, Beijing, China
| | - Jing Ye
- Knee Surgery Department of the Institute of Sports Medicine, Peking University Third Hospital, Beijing, China
| | - Fu-Zhen Yuan
- Knee Surgery Department of the Institute of Sports Medicine, Peking University Third Hospital, Beijing, China
| | - Ji-Ying Zhang
- Knee Surgery Department of the Institute of Sports Medicine, Peking University Third Hospital, Beijing, China
| | - You-Rong Chen
- Knee Surgery Department of the Institute of Sports Medicine, Peking University Third Hospital, Beijing, China
| | - Bao-Shi Fan
- School of Clinical Medicine, Weifang Medical University, Weifang, China
| | - Dong Jiang
- Knee Surgery Department of the Institute of Sports Medicine, Peking University Third Hospital, Beijing, China
| | - Wen-Bo Jiang
- Clinical Translational R&D Center of 3D Printing Technology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xing Wang
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Polymer Physics & Chemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Jia-Kuo Yu
- Knee Surgery Department of the Institute of Sports Medicine, Peking University Third Hospital, Beijing, China
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208
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Leucht A, Volz AC, Rogal J, Borchers K, Kluger PJ. Advanced gelatin-based vascularization bioinks for extrusion-based bioprinting of vascularized bone equivalents. Sci Rep 2020; 10:5330. [PMID: 32210309 PMCID: PMC7093518 DOI: 10.1038/s41598-020-62166-w] [Citation(s) in RCA: 63] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2019] [Accepted: 02/27/2020] [Indexed: 12/19/2022] Open
Abstract
Bone tissue is highly vascularized. The crosstalk of vascular and osteogenic cells is not only responsible for the formation of the strongly divergent tissue types but also for their physiological maintenance and repair. Extrusion-based bioprinting presents a promising fabrication method for bone replacement. It allows for the production of large-volume constructs, which can be tailored to individual tissue defect geometries. In this study, we used the all-gelatin-based toolbox of methacryl-modified gelatin (GM), non-modified gelatin (G) and acetylated GM (GMA) to tailor both the properties of the bioink towards improved printability, and the properties of the crosslinked hydrogel towards enhanced support of vascular network formation by simple blending. The vasculogenic behavior of human dermal microvascular endothelial cells (HDMECs) and human adipose-derived stem cells (ASCs) was evaluated in the different hydrogel formulations for 14 days. Co-culture constructs including a vascular component and an osteogenic component (i.e. a bone bioink based on GM, hydroxyapatite and ASCs) were fabricated via extrusion-based bioprinting. Bioprinted co-culture constructs exhibited functional tissue-specific cells whose interplay positively affected the formation and maintenance of vascular-like structures. The setup further enabled the deposition of bone matrix associated proteins like collagen type I, fibronectin and alkaline phosphatase within the 30-day culture.
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Affiliation(s)
- A Leucht
- Institute of Interfacial Process Engineering and Plasmatechnology IGVP, University of Stuttgart, Stuttgart, Germany
- Fraunhofer Institute for Interfacial Engineering and Biotechnology IGB, Stuttgart, Germany
| | - A-C Volz
- Reutlingen Research Institute, Reutlingen University, Reutlingen, Germany
| | - J Rogal
- Fraunhofer Institute for Interfacial Engineering and Biotechnology IGB, Stuttgart, Germany
- RWTH Aachen University, Aachen, Germany
| | - K Borchers
- Institute of Interfacial Process Engineering and Plasmatechnology IGVP, University of Stuttgart, Stuttgart, Germany
- Fraunhofer Institute for Interfacial Engineering and Biotechnology IGB, Stuttgart, Germany
| | - P J Kluger
- Fraunhofer Institute for Interfacial Engineering and Biotechnology IGB, Stuttgart, Germany.
- Reutlingen Research Institute, Reutlingen University, Reutlingen, Germany.
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209
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Gu L, Li T, Song X, Yang X, Li S, Chen L, Liu P, Gong X, Chen C, Sun L. Preparation and characterization of methacrylated gelatin/bacterial cellulose composite hydrogels for cartilage tissue engineering. Regen Biomater 2020; 7:195-202. [PMID: 32296538 PMCID: PMC7147361 DOI: 10.1093/rb/rbz050] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2019] [Revised: 11/06/2019] [Accepted: 11/22/2019] [Indexed: 02/07/2023] Open
Abstract
Methacrylated gelatin (GelMA)/bacterial cellulose (BC) composite hydrogels have been successfully prepared by immersing BC particles in GelMA solution followed by photo-crosslinking. The morphology of GelMA/BC hydrogel was examined by scanning electron microscopy and compared with pure GelMA. The hydrogels had very well interconnected porous network structure, and the pore size decreased from 200 to 10 µm with the increase of BC content. The composite hydrogels were also characterized by swelling experiment, X-ray diffraction, thermogravimetric analysis, rheology experiment and compressive test. The composite hydrogels showed significantly improved mechanical properties compared with pure GelMA. In addition, the biocompatility of composite hydrogels were preliminarily evaluated using human articular chondrocytes. The cells encapsulated within the composite hydrogels for 7 days proliferated and maintained the chondrocytic phenotype. Thus, the GelMA/BC composite hydrogels might be useful for cartilage tissue engineering.
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Affiliation(s)
- Liling Gu
- Medical College, Guizhou University, Guiyang 550025, China
- Department of Rehabilitation, Guizhou Provincial People’s Hospital, Guiyang 550002, China
| | - Tao Li
- Center for Joint Surgery, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing 400038, China
| | - Xiongbo Song
- Center for Joint Surgery, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing 400038, China
| | - Xianteng Yang
- Department of Orthopedics, Guizhou Provincial People’s Hospital, Guiyang 550002, China
| | - Senlei Li
- Department of Orthopedics, Guizhou Provincial People’s Hospital, Guiyang 550002, China
| | - Long Chen
- Department of Orthopedics, Guizhou Provincial People’s Hospital, Guiyang 550002, China
| | - Pingju Liu
- Zunyi Traditional Chinese Medicine Hospital, Zunyi 563099, China
| | - Xiaoyuan Gong
- Center for Joint Surgery, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing 400038, China
| | - Cheng Chen
- Center for Joint Surgery, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing 400038, China
| | - Li Sun
- Department of Orthopedics, Guizhou Provincial People’s Hospital, Guiyang 550002, China
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210
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Xu Y, Yang H, Zhu H, Jiang L, Yang H. Self-healing gelatin-based shape memory hydrogels via quadruple hydrogen bonding and coordination crosslinking for controlled delivery of 5-fluorouracil. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2020; 31:712-728. [PMID: 31955653 DOI: 10.1080/09205063.2020.1713711] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
Gelatin-UPy based on gelatin with ureidopyrimidinone (UPy) side chains was prepared with varying content of UPy units. On increasing the UPy content, the glass transition temperature, crystallinity and swelling decreased. Gelatin-UPy demonstrated self-healing properties as the UPy units could reversibly form dimers. At the same time, the gelatin-UPy and gelatin-UPy hydrogels demonstrated thermal responsive shape memory behaviors. The introduction of coordination crosslinking by introducing Fe3+ in gelatin-UPy hydrogels not only enhanced the crosslinking degree of gelatin-UPy and decreased the swelling degree, but also significantly improved the self-healing properties. As a drug carrier, gelatin-UPy hydrogels could achieve controlled release of 5-fluorouracil (5-FU) drug on increasing the content of UPy and concentration of Fe3+. The gelatin-UPy based materials are expected to find significant use as suppository and tissue engineering materials to treat tumors.
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Affiliation(s)
- Yuande Xu
- Medical School, Guangxi University, Nanning, China
| | - Hong Yang
- Medical School, Guangxi University, Nanning, China
| | - Heyan Zhu
- Medical School, Guangxi University, Nanning, China
| | - Linbin Jiang
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning, China
| | - Hua Yang
- Medical School, Guangxi University, Nanning, China
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211
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Samanipour R, Wang T, Werb M, Hassannezhad H, Rangel JML, Hoorfar M, Hasan A, Lee CK, Shin SR. Ferritin Nanocage Conjugated Hybrid Hydrogel for Tissue Engineering and Drug Delivery Applications. ACS Biomater Sci Eng 2020; 6:277-287. [PMID: 33313389 PMCID: PMC7725239 DOI: 10.1021/acsbiomaterials.9b01482] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Hydrogels have recently been attractive in various drug delivery and tissue engineering applications because of their structural similarities to the natural extracellular matrix. Despite enormous advances in the application of hydrogels, poor mechanical properties and lack of control for the release of drugs and biomolecules act as major barriers for widespread clinical applications. To overcome these challenges, we developed both physically and covalently conjugated nanocage-laden hydrogels between the surface of the nanocage and a gelatin methacryloyl (GelMA) hydrogel matrix. Ferritin and its empty-core equivalent apoferritin were used as nanocages that could be easily incorporated into a GelMA hydrogel via physical bonding. To fabricate covalently conjugated nanocage-laden GelMA hydrogels, ferritin and apoferritin were chemically modified to present the methacryloyl groups, ferritin methacryloyl (FerMA) and apoferritin methacryloyl (ApoMA), respectively. The covalently conjugated FerMA- and ApoMA-GelMA hydrogels offered a better ability to tune mechanical properties compared with those prepared by direct dispersion of ferritin and apoferritin into GelMA hydrogels with physical bonding, without affecting their porosity or cell growth. Furthermore, the ability of the nanocage to release small chemical compounds was confirmed by performing a cumulative release test on fluorescein isothiocyanate (FITC) encapsulated apoferritin and ApoMA incorporated GelMA hydrogels by pH stimulus. Thus, the nanocage incorporated hydrogels have emerged as excellent materials for drug delivery and tissue engineering applications.
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Affiliation(s)
- Roya Samanipour
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Cambridge, Massachusetts 02139, United States
- Department of Mechanical Engineering, School of Engineering, University of British Columbia, Kelowna V6T 1Z4, Canada
| | - Ting Wang
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Cambridge, Massachusetts 02139, United States
- School of Medicine, Jiangsu University, Zhenjiang, Jiangsu 212013, China
| | - Moritz Werb
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Cambridge, Massachusetts 02139, United States
| | - Hamed Hassannezhad
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Cambridge, Massachusetts 02139, United States
| | - Juan Manuel Ledesma Rangel
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Cambridge, Massachusetts 02139, United States
| | - Mina Hoorfar
- Department of Mechanical Engineering, School of Engineering, University of British Columbia, Kelowna V6T 1Z4, Canada
| | - Anwarul Hasan
- Department of Mechanical and Industrial Engineering, College of Engineering, Qatar University, 2713 Doha, Qatar
- Biomedical Research Centre (BRC), Qatar University, 2713 Doha, Qatar
| | - Chang Kee Lee
- Korea Packaging Center, Korea Institute of Industrial Technology, Bucheon 31056, Republic of Korea
| | - Su Ryon Shin
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Cambridge, Massachusetts 02139, United States
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Rehman SRU, Augustine R, Zahid AA, Ahmed R, Tariq M, Hasan A. Reduced Graphene Oxide Incorporated GelMA Hydrogel Promotes Angiogenesis For Wound Healing Applications. Int J Nanomedicine 2019; 14:9603-9617. [PMID: 31824154 PMCID: PMC6901121 DOI: 10.2147/ijn.s218120] [Citation(s) in RCA: 154] [Impact Index Per Article: 30.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2019] [Accepted: 10/09/2019] [Indexed: 02/06/2023] Open
Abstract
PURPOSE Non-healing or slow healing chronic wounds are among serious complications of diabetes that eventually result in amputation of limbs and increased morbidities and mortalities. Chronic diabetic wounds show reduced blood vessel formation (lack of angiogenesis), inadequate cell proliferation and poor cell migration near wounds. In this paper, we report the development of a hydrogel-based novel wound dressing material loaded with reduced graphene oxide (rGO) to promote cell proliferation, cell migration and angiogenesis for wound healing applications. METHODS Gelatin-methacryloyl (GelMA) based hydrogels loaded with different concentrations of rGO were fabricated by UV crosslinking. Morphological and physical characterizations (porosity, degradation, and swelling) of rGO incorporated GelMA hydrogel was performed. In vitro cell proliferation, cell viability and cell migration potential of the hydrogels were analyzed by MTT assay, live/dead staining, and wound healing scratch assay respectively. Finally, in vivo chicken embryo angiogenesis (CEO) testing was performed to evaluate the angiogenic potential of the prepared hydrogel. RESULTS The experimental results showed that the developed hydrogel possessed enough porosity and exudate-absorbing capacity. The biocompatibility of prepared hydrogel on three different cell lines (3T3 fibroblasts, EA.hy926 endothelial cells, and HaCaT keratinocytes) was confirmed by in vitro cell culture studies (live/dead assay). The GelMA hydrogel containing 0.002% w/w rGO considerably increased the proliferation and migration of cells as evident from MTT assay and wound healing scratch assay. Furthermore, rGO impregnated GelMA hydrogel significantly enhanced the angiogenesis in the chick embryo model. CONCLUSION The positive effect of 0.002% w/w rGO impregnated GelMA hydrogels on angiogenesis, cell migration and cell proliferation suggests that these formulations could be used as a functional wound healing material for the healing of chronic wounds.
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Affiliation(s)
- Syed Raza ur Rehman
- Department of Mechanical and Industrial Engineering, College of Engineering, Qatar University, Doha2713, Qatar
- Biomedical Research Center, Qatar University, Doha2713, Qatar
| | - Robin Augustine
- Department of Mechanical and Industrial Engineering, College of Engineering, Qatar University, Doha2713, Qatar
- Biomedical Research Center, Qatar University, Doha2713, Qatar
| | - Alap Ali Zahid
- Department of Mechanical and Industrial Engineering, College of Engineering, Qatar University, Doha2713, Qatar
- Biomedical Research Center, Qatar University, Doha2713, Qatar
| | - Rashid Ahmed
- Department of Mechanical and Industrial Engineering, College of Engineering, Qatar University, Doha2713, Qatar
- Biomedical Research Center, Qatar University, Doha2713, Qatar
| | - Muhammad Tariq
- Department of Biotechnology, Faculty of Science, Mirpur University of Science and Technology, Mirpur10250, AJK, Pakistan
| | - Anwarul Hasan
- Department of Mechanical and Industrial Engineering, College of Engineering, Qatar University, Doha2713, Qatar
- Biomedical Research Center, Qatar University, Doha2713, Qatar
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