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Ahmed DW, Tan ML, Gabbard J, Liu Y, Hu MM, Stevens M, Midekssa FS, Han L, Zemans RL, Baker BM, Loebel C. Local photo-crosslinking of native tissue matrix regulates cell function. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.08.10.607417. [PMID: 39149281 PMCID: PMC11326225 DOI: 10.1101/2024.08.10.607417] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 08/17/2024]
Abstract
Within most tissues, the extracellular microenvironment provides mechanical cues that guide cell fate and function. Changes in the extracellular matrix such as aberrant deposition, densification and increased crosslinking are hallmarks of late-stage fibrotic diseases that often lead to organ dysfunction. Biomaterials have been widely used to mimic the mechanical properties of the fibrotic matrix and study cell function. However, the initiation of fibrosis has largely been overlooked, due to the challenges in recapitulating early fibrotic lesions within the native extracellular microenvironment. Using visible light mediated photochemistry, we induced local crosslinking and stiffening of extracellular matrix proteins within ex vivo murine and human tissue. In ex vivo lung tissue of epithelial cell lineage-traced mice, local matrix crosslinking mimicked early fibrotic lesions that increased alveolar epithelial cell spreading, differentiation and extracellular matrix remodeling. However, inhibition of cytoskeletal tension or integrin engagement reduced epithelial cell spreading and differentiation, resulting in alveolar epithelial cell dedifferentiation and reduced extracellular matrix deposition. Our findings emphasize the role of local extracellular matrix crosslinking and remodeling in early-stage tissue fibrosis and have implications for ex vivo disease modeling and applications to other tissues.
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Affiliation(s)
- Donia W Ahmed
- Department of Biomedical Engineering University of Michigan
| | - Matthew L Tan
- Department of Materials Science and Engineering University of Michigan
| | | | - Yuchen Liu
- School of Biomedical Engineering, Science and Health Systems, Drexel University
| | - Michael M Hu
- Department of Biomedical Engineering University of Michigan
| | - Miriam Stevens
- Department of Biomedical Engineering University of Michigan
| | | | - Lin Han
- School of Biomedical Engineering, Science and Health Systems, Drexel University
| | - Rachel L Zemans
- Department of Internal Medicine, University of Michigan
- Cellular and Molecular Biology Program, University of Michigan
| | | | - Claudia Loebel
- Department of Biomedical Engineering University of Michigan
- Department of Materials Science and Engineering University of Michigan
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2
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Ly KL, Rajtboriraks M, Elgerbi A, Luo X, Raub CB. Recombinant Human Keratinocyte Growth Factor Ameliorates Cancer Treatment-Induced Oral Mucositis on a Chip. Adv Healthc Mater 2024; 13:e2302970. [PMID: 38351394 PMCID: PMC11144107 DOI: 10.1002/adhm.202302970] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 02/06/2024] [Indexed: 02/23/2024]
Abstract
Oral mucositis (OM) is a severe complication of cancer therapies caused by off-target cytotoxicity. Palifermin, which is recombinant human keratinocyte growth factor (KGF), is currently the only mitigating treatment available to a subset of OM patients. This study used a previously established model of oral mucositis on a chip (OM-OC) comprised of a confluent human gingival keratinocytes (GIE) layer attached to a basement membrane-lined subepithelial layer consisting of human gingival fibroblasts (HGF) and human dermal microvascular endothelial cells (HMEC) on a stable collagen I gel. Cisplatin, radiation, and combined treatments are followed by a recovery period in the OM-OC to determine possible cellular and molecular mechanisms of OM under effects of KGF. Cancer treatments affected the keratinocyte layer, causing death and epithelial barrier loss. Both keratinocytes and subepithelial cells died rapidly, as evidenced by propidium iodide staining. In response to radiation exposure, cell death occurred in the apical epithelial layer, predominantly, within 24h. Cisplatin exposure predominantly promoted death of basal epithelial cells within 32-36h. Presence of KGF in OM-OC protected tissues from damage caused by cancer treatments in a dose-dependent manner, being more effective at 10 ng/mL. As verified by F-actin staining and the Alamar Blue assay, KGF contributed to epithelial survival and induced proliferation of GIE and HGF as well as HMEC within 120h. When the expression of eighty inflammatory cytokines is evaluated at OM induction (Day 12) and resolution (Day 18) stages in OM-OC, some cytokines are identified as potential novel therapeutic targets. In comparison with chemoradiation exposure, KGF treatment showed a trend to decrease IL-8 and TNF-a expression at Day 12 and 18, and TGF-β1 at Day 18 in OM-OC. Taken together, these findings support the utility of OM-OC as a platform to model epithelial damage and evaluate molecular mechanisms following OM treatment.
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Affiliation(s)
- Khanh L Ly
- Department of Biomedical Engineering, School of Engineering, The Catholic University of America, Washington, DC, 20064, USA
| | - May Rajtboriraks
- Department of Biomedical Engineering, School of Engineering, The Catholic University of America, Washington, DC, 20064, USA
| | - Ahmed Elgerbi
- Department of Biology, School of Arts and Sciences, The Catholic University of America, Washington, DC, 20064, USA
| | - Xiaolong Luo
- Department of Mechanical Engineering, School of Engineering, The Catholic University of America, Washington, DC, 20064, USA
| | - Christopher B Raub
- Department of Biomedical Engineering, School of Engineering, The Catholic University of America, Washington, DC, 20064, USA
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3
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Polanco EA, Opdam LV, Passerini L, Huber M, Bonnet S, Pandit A. An artificial metalloenzyme that can oxidize water photocatalytically: design, synthesis, and characterization. Chem Sci 2024; 15:3596-3609. [PMID: 38455019 PMCID: PMC10915814 DOI: 10.1039/d3sc05870k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2023] [Accepted: 01/29/2024] [Indexed: 03/09/2024] Open
Abstract
In nature, light-driven water oxidation (WO) catalysis is performed by photosystem II via the delicate interplay of different cofactors positioned in its protein scaffold. Artificial systems for homogeneous photocatalytic WO are based on small molecules that often have limited solubility in aqueous solutions. In this work, we alleviated this issue and present a cobalt-based WO-catalyst containing artificial metalloenzyme (ArM) that is active in light-driven, homogeneous WO catalysis in neutral-pH aqueous solutions. A haem-containing electron transfer protein, cytochrome B5 (CB5), served to host a first-row transition-metal-based WO catalyst, CoSalen (CoIISalen, where H2Salen = N,N'-bis(salicylidene)ethylenediamine), thus producing an ArM capable of driving photocatalytic WO. The CoSalen ArM formed a water-soluble pre-catalyst in the presence of [Ru(bpy)3](ClO4)2 as photosensitizer and Na2S2O8 as the sacrificial electron acceptor, with photocatalytic activity similar to that of free CoSalen. During photocatalysis, the CoSalen-protein interactions were destabilized, and the protein partially unfolded. Rather than forming tens of nanometer sized CoOx nanoparticles as free CoSalen does under photocatalytic WO conditions, the CB5 : CoSalen ArM showed limited protein cross-linking and remained soluble. We conclude that a weak, dynamic interaction between a soluble cobalt species and apoCB5 was formed, which generated a catalytically active adduct during photocatalysis. A detailed analysis was performed on protein stability and decomposition processes during the harsh oxidizing reaction conditions of WO, which will serve for the future design of WO ArMs with improved activity and stability.
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Affiliation(s)
- Ehider A Polanco
- Leiden Institute of Chemistry, Leiden University Einsteinweg 55 2333 CC Leiden The Netherlands
| | - Laura V Opdam
- Leiden Institute of Chemistry, Leiden University Einsteinweg 55 2333 CC Leiden The Netherlands
| | - Leonardo Passerini
- Department of Physics, Huygens-Kamerlingh Onnes Laboratory, Leiden University Niels Bohrweg 2 2333 CA Leiden The Netherlands
| | - Martina Huber
- Department of Physics, Huygens-Kamerlingh Onnes Laboratory, Leiden University Niels Bohrweg 2 2333 CA Leiden The Netherlands
| | - Sylvestre Bonnet
- Leiden Institute of Chemistry, Leiden University Einsteinweg 55 2333 CC Leiden The Netherlands
| | - Anjali Pandit
- Leiden Institute of Chemistry, Leiden University Einsteinweg 55 2333 CC Leiden The Netherlands
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Hu S, Liang Y, Chen J, Gao X, Zheng Y, Wang L, Jiang J, Zeng M, Luo M. Mechanisms of hydrogel-based microRNA delivery systems and its application strategies in targeting inflammatory diseases. J Tissue Eng 2024; 15:20417314241265897. [PMID: 39092451 PMCID: PMC11292707 DOI: 10.1177/20417314241265897] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2024] [Accepted: 06/18/2024] [Indexed: 08/04/2024] Open
Abstract
Hydrogels, composed of three-dimensional polymer networks, are excellent delivery carriers and have been extensively employed in the biomedical field. Inflammation acts as a protective mechanism to prevent harmful substances from entering living organisms, but chronic, long-lasting inflammation can cause oxidative stress, which damages tissue and organs and adversely affects patients' quality of life. The aberrant expression of microRNAs (miRNAs) has been found to play a significant part in the etiology and progression of inflammatory diseases, as suggested by growing evidence. Numerous hydrogels that can act as gene carriers for the intracellular delivery of miRNA have been described during ongoing research into innovative hydrogel materials. MiRNA hydrogel delivery systems, which are loaded with exogenous miRNA inhibitors or mimics, enable targeted miRNA intervention in inflammatory diseases and effectively prevent environmental stressors from degrading or inactivating miRNA. In this review, we summarize the classification of miRNA hydrogel delivery systems, the basic strategies and mechanisms for loading miRNAs into hydrogels, highlight the biomedical applications of miRNA hydrogel delivery systems in inflammatory diseases, and share our viewpoints on potential opportunities and challenges in the promising region of miRNA delivery systems. These findings may provide a new theoretical basis for the prevention and treatment of inflammation-related diseases and lay the foundation for clinical translation.
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Affiliation(s)
- Shaorun Hu
- Basic Medicine Research Innovation Center for Cardiometabolic Diseases, Ministry of Education, Southwest Medical University, Luzhou, Sichuan, China
- Laboratory for Cardiovascular Pharmacology, Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, Sichuan, China
- Municipal Key Laboratory of Thrombosis and Vascular Biology, Luzhou, Sichuan, China
| | - Yu Liang
- Integrated Traditional Chinese and Western Medicine, Affiliated Hospital of Traditional Chinese Medicine, Southwest Medical University, Luzhou, Sichuan, China
| | - Jinxiang Chen
- Basic Medicine Research Innovation Center for Cardiometabolic Diseases, Ministry of Education, Southwest Medical University, Luzhou, Sichuan, China
- Laboratory for Cardiovascular Pharmacology, Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, Sichuan, China
- Municipal Key Laboratory of Thrombosis and Vascular Biology, Luzhou, Sichuan, China
| | - Xiaojun Gao
- Basic Medicine Research Innovation Center for Cardiometabolic Diseases, Ministry of Education, Southwest Medical University, Luzhou, Sichuan, China
- Laboratory for Cardiovascular Pharmacology, Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, Sichuan, China
- Municipal Key Laboratory of Thrombosis and Vascular Biology, Luzhou, Sichuan, China
| | - Youkun Zheng
- Basic Medicine Research Innovation Center for Cardiometabolic Diseases, Ministry of Education, Southwest Medical University, Luzhou, Sichuan, China
- Laboratory for Cardiovascular Pharmacology, Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, Sichuan, China
- Municipal Key Laboratory of Thrombosis and Vascular Biology, Luzhou, Sichuan, China
| | - Liqun Wang
- Basic Medicine Research Innovation Center for Cardiometabolic Diseases, Ministry of Education, Southwest Medical University, Luzhou, Sichuan, China
- Laboratory for Cardiovascular Pharmacology, Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, Sichuan, China
- Municipal Key Laboratory of Thrombosis and Vascular Biology, Luzhou, Sichuan, China
| | - Jun Jiang
- Department of General Surgery (Thyroid Surgery), The Affiliated Hospital, Southwest Medical University, Luzhou, Sichuan, China
- Metabolic Vascular Diseases Key Laboratory of Sichuan Province, Luzhou, Sichuan, China
| | - Min Zeng
- Department of Pharmacy, The Affiliated Hospital, Southwest Medical University, Luzhou, Sichuan, China
| | - Mao Luo
- Basic Medicine Research Innovation Center for Cardiometabolic Diseases, Ministry of Education, Southwest Medical University, Luzhou, Sichuan, China
- Laboratory for Cardiovascular Pharmacology, Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, Sichuan, China
- Municipal Key Laboratory of Thrombosis and Vascular Biology, Luzhou, Sichuan, China
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5
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Yu X. Application of Hydrogels in Cardiac Regeneration. Cardiol Ther 2023; 12:637-674. [PMID: 37979080 DOI: 10.1007/s40119-023-00339-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Accepted: 10/20/2023] [Indexed: 11/19/2023] Open
Abstract
Myocardial infarction (MI) is a leading cause of death globally. Due to limited cardiac regeneration, infarcted myocardial tissue is gradually replaced by cardiac fibrosis, causing cardiac dysfunction, arrhythmia, aneurysm, free wall rupture, and sudden cardiac death. Thus, the development of effective methods to promote cardiac regeneration is extremely important for MI treatment. In recent years, hydrogels have shown promise in various methods for cardiac regeneration. Hydrogels can be divided into natural and synthetic types. Different hydrogels have different features and can be cross-linked in various ways. Hydrogels are low in toxicity and highly stable. Since they have good biocompatibility, biodegradability, and transformability, moderate mechanical properties, and proper elasticity, hydrogels are promising biomaterials for promoting cardiac regeneration. They can be used not only as scaffolds for migration of stem cells, but also as ideal carriers for delivery of drugs, genetic materials, stem cells, growth factors, cytokines, and small molecules. In this review, the application of hydrogels in cardiac regeneration during or post-MI is discussed in detail. Hydrogels open a promising new area in cardiac regeneration for treating MI.
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Affiliation(s)
- Xuejing Yu
- Division of Cardiology, Department of Internal Medicine, The University of Texas Southwestern Medical Center, 5323 Harry Hines Boulevard, Dallas, TX, 75235, USA.
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6
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Zhang H, Wang Y, Zheng Z, Wei X, Chen L, Wu Y, Huang W, Yang L. Strategies for improving the 3D printability of decellularized extracellular matrix bioink. Theranostics 2023; 13:2562-2587. [PMID: 37215563 PMCID: PMC10196833 DOI: 10.7150/thno.81785] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Accepted: 04/13/2023] [Indexed: 05/24/2023] Open
Abstract
3D bioprinting is a revolutionary technology capable of replicating native tissue and organ microenvironments by precisely placing cells into 3D structures using bioinks. However, acquiring the ideal bioink to manufacture biomimetic constructs is challenging. A natural extracellular matrix (ECM) is an organ-specific material that provides physical, chemical, biological, and mechanical cues that are hard to mimic using a small number of components. Organ-derived decellularized ECM (dECM) bioink is revolutionary and has optimal biomimetic properties. However, dECM is always "non-printable" owing to its poor mechanical properties. Recent studies have focused on strategies to improve the 3D printability of dECM bioink. In this review, we highlight the decellularization methods and procedures used to produce these bioinks, effective methods to improve their printability, and recent advances in tissue regeneration using dECM-based bioinks. Finally, we discuss the challenges associated with manufacturing dECM bioinks and their potential large-scale applications.
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Affiliation(s)
- Huihui Zhang
- Department of Burns, Nanfang Hospital, Southern Medical University, Jingxi Street, Baiyun District, Guangzhou, 510515, PR China
- Guangdong Engineering Research Center for Translation of Medical 3D Printing Application, Guangdong Provincial Key Laboratory of Medical Biomechanics, Department of Human Anatomy, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China
| | - Yilin Wang
- Guangdong Engineering Research Center for Translation of Medical 3D Printing Application, Guangdong Provincial Key Laboratory of Medical Biomechanics, Department of Human Anatomy, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China
| | - Zijun Zheng
- Department of Burns, Nanfang Hospital, Southern Medical University, Jingxi Street, Baiyun District, Guangzhou, 510515, PR China
| | - Xuerong Wei
- Department of Burns, Nanfang Hospital, Southern Medical University, Jingxi Street, Baiyun District, Guangzhou, 510515, PR China
| | - Lianglong Chen
- Department of Burns, Nanfang Hospital, Southern Medical University, Jingxi Street, Baiyun District, Guangzhou, 510515, PR China
| | - Yaobin Wu
- Guangdong Engineering Research Center for Translation of Medical 3D Printing Application, Guangdong Provincial Key Laboratory of Medical Biomechanics, Department of Human Anatomy, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China
| | - Wenhua Huang
- Guangdong Engineering Research Center for Translation of Medical 3D Printing Application, Guangdong Provincial Key Laboratory of Medical Biomechanics, Department of Human Anatomy, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China
- Guangdong Medical Innovation Platform for Translation of 3D Printing Application, Southern Medical University, The Third Affiliated Hospital of Southern Medical University, Southern Medical University, Guangzhou, China
| | - Lei Yang
- Department of Burns, Nanfang Hospital, Southern Medical University, Jingxi Street, Baiyun District, Guangzhou, 510515, PR China
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7
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Zhu Q, Zhou X, Zhang Y, Ye D, Yu K, Cao W, Zhang L, Zheng H, Sun Z, Guo C, Hong X, Zhu Y, Zhang Y, Xiao Y, Valencak TG, Ren T, Ren D. White-light crosslinkable milk protein bioadhesive with ultrafast gelation for first-aid wound treatment. Biomater Res 2023; 27:6. [PMID: 36737833 PMCID: PMC9898936 DOI: 10.1186/s40824-023-00346-1] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Accepted: 01/25/2023] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND Post-traumatic massive hemorrhage demands immediately available first-aid supplies with reduced operation time and good surgical compliance. In-situ crosslinking gels that are flexibly adapting to the wound shape have a promising potential, but it is still hard to achieve fast gelation, on-demand adhesion, and wide feasibility at the same time. METHODS A white-light crosslinkable natural milk-derived casein hydrogel bioadhesive is presented for the first time. Benefiting from abundant tyrosine residues, casein hydrogel bioadhesive was synthesized by forming di-tyrosine bonds under white light with a ruthenium-based catalyst. We firstly optimized the concentration of proteins and initiators to achieve faster gelation and higher mechanical strength. Then, we examined the degradation, cytotoxicity, tissue adhesion, hemostasis, and wound healing ability of the casein hydrogels to study their potential to be used as bioadhesives. RESULT Rapid gelation of casein hydrogel is initiated with an outdoor flashlight, a cellphone flashlight, or an endoscopy lamp, which facilitates its usage during first-aid and minimally invasive operations. The rapid gelation enables 3D printing of the casein hydrogel and excellent hemostasis even during liver hemorrhage due to section injury. The covalent binding between casein and tissue enables robust adhesion which can withstand more than 180 mmHg blood pressure. Moreover, the casein-based hydrogel can facilitate post-traumatic wound healing caused by trauma due to its biocompatibility. CONCLUSION Casein-based bioadhesives developed in this study pave a way for broad and practical application in emergency wound management.
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Affiliation(s)
- Qinchao Zhu
- grid.13402.340000 0004 1759 700XInstitute of Dairy Science, College of Animal Sciences, Zhejiang University, 310058 Hangzhou, China
| | - Xuhao Zhou
- grid.13402.340000 0004 1759 700XDepartment of Cardiology, Cardiovascular Key Laboratory of Zhejiang Province, Second Affiliated Hospital, School of Medicine, Zhejiang University, 310027 Hangzhou, China
| | - Yanan Zhang
- grid.13402.340000 0004 1759 700XKey Laboratory of Animal Virology of Ministry of Agriculture, Center for Veterinary Sciences, Zhejiang University, 310058 Hangzhou, China
| | - Di Ye
- grid.13402.340000 0004 1759 700XDepartment of Veterinary Medicine, College of Animal Sciences, Zhejiang University, 310058 Hangzhou, China
| | - Kang Yu
- grid.13402.340000 0004 1759 700XKey Laboratory of 3D Printing Process and Equipment of Zhejiang Province, School of Mechanical Engineering, Zhejiang University, 310027 Hangzhou, China
| | - Wangbei Cao
- grid.13402.340000 0004 1759 700XMOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, 310027 Hangzhou, China
| | - Liwen Zhang
- grid.13402.340000 0004 1759 700XMOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, 310027 Hangzhou, China
| | - Houwei Zheng
- grid.13402.340000 0004 1759 700XMOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, 310027 Hangzhou, China
| | - Ziyang Sun
- grid.494629.40000 0004 8008 9315School of Engineering, Westlake University, 310023 Hangzhou, Zhejiang China
| | - Chengchen Guo
- grid.494629.40000 0004 8008 9315School of Engineering, Westlake University, 310023 Hangzhou, Zhejiang China
| | - Xiaoqian Hong
- grid.13402.340000 0004 1759 700XDepartment of Cardiology, Cardiovascular Key Laboratory of Zhejiang Province, Second Affiliated Hospital, School of Medicine, Zhejiang University, 310027 Hangzhou, China
| | - Yang Zhu
- grid.13402.340000 0004 1759 700XMOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, 310027 Hangzhou, China
| | - Yajun Zhang
- grid.13402.340000 0004 1759 700XSir Run Run Shaw Hospital, School of Medicine, Zhejiang University, 310020 Hangzhou, Zhejiang China
| | - Ying Xiao
- grid.13402.340000 0004 1759 700XSir Run Run Shaw Hospital, School of Medicine, Zhejiang University, 310020 Hangzhou, Zhejiang China
| | - Teresa G. Valencak
- grid.13402.340000 0004 1759 700XInstitute of Dairy Science, College of Animal Sciences, Zhejiang University, 310058 Hangzhou, China
| | - Tanchen Ren
- grid.13402.340000 0004 1759 700XDepartment of Cardiology, Cardiovascular Key Laboratory of Zhejiang Province, Second Affiliated Hospital, School of Medicine, Zhejiang University, 310027 Hangzhou, China
| | - Daxi Ren
- grid.13402.340000 0004 1759 700XInstitute of Dairy Science, College of Animal Sciences, Zhejiang University, 310058 Hangzhou, China
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Ly KL, Luo X, Raub CB. Oral mucositis on a chip: modeling induction by chemo- and radiation treatments and recovery. Biofabrication 2022; 15:10.1088/1758-5090/ac933b. [PMID: 36126642 PMCID: PMC9780701 DOI: 10.1088/1758-5090/ac933b] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Accepted: 09/20/2022] [Indexed: 12/27/2022]
Abstract
Oral mucositis (OM) is a debilitating complication affecting roughly 70% of head and neck cancer patients receiving chemotherapy and/or radiation treatment. No broadly effective preventative treatment for OM exists. Therefore, anin vitromodel of cancer treatment-induced OM would aid studies into possible origins of the pathology and future drug targets to ameliorate it. In this study, we present a microfluidic oral mucosa triculture tissue construct consisting of a keratinocyte layer attached to a subepithelial fibroblast and endothelial cell-embedded collagen gel. To address the typically low stability of mucosal constructs in microfluidics, ruthenium-catalyzed photocrosslinking was implemented to strengthen the collagen gel and prevent the invasion of keratinocytes, thus maintaining tissue construct geometry and oral mucosa barrier function for over 18 d of culture. Next, the OM chip was exposed to cisplatin (day 10) and damaging radiation (day 11, ± cisplatin at day 10), mimicking damage from cancer therapy. Damage to and then recovery of the tissue layers and function were observed over days 11-18. Therefore, several important features of OM induction and resolution were modeled in microfluidic culture. The OM model on a chip allows for more sophisticated studies into mechanisms of OM and potential treatments.
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Affiliation(s)
- Khanh L Ly
- Department of Biomedical Engineering, School of Engineering, Catholic University of America, Washington, DC 20064, United States of America
| | - Xiaolong Luo
- Department of Mechanical Engineering, School of Engineering, Catholic University of America, Washington, DC 20064, United States of America
| | - Christopher B Raub
- Department of Biomedical Engineering, School of Engineering, Catholic University of America, Washington, DC 20064, United States of America
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Photocrosslinkable Silk-Based Biomaterials for Regenerative Medicine and Healthcare Applications. REGENERATIVE ENGINEERING AND TRANSLATIONAL MEDICINE 2022. [DOI: 10.1007/s40883-022-00277-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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10
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Medical Adhesives and Their Role in Laparoscopic Surgery—A Review of Literature. MATERIALS 2022; 15:ma15155215. [PMID: 35955150 PMCID: PMC9369661 DOI: 10.3390/ma15155215] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Revised: 06/15/2022] [Accepted: 07/20/2022] [Indexed: 01/27/2023]
Abstract
Laparoscopic surgery is undergoing rapid development. Replacing the traditional method of joining cut tissues with sutures or staples could greatly simplify and speed up laparoscopic procedures. This alternative could undoubtedly be adhesives. For decades, scientists have been working on a material to bond tissues together to create the best possible conditions for tissue regeneration. The results of research on tissue adhesives achieved over the past years show comparable treatment effects to traditional methods. Tissue adhesives are a good alternative to surgical sutures in wound closure. This article is a review of the most important groups of tissue adhesives including their properties and possible applications. Recent reports on the development of biological adhesives are also discussed.
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Gulzar A, Yıldız E, Kaleli HN, Nazeer MA, Zibandeh N, Malik AN, Taş AY, Lazoğlu I, Şahin A, Kizilel S. Ruthenium-induced corneal collagen crosslinking under visible light. Acta Biomater 2022; 147:198-208. [PMID: 35643198 DOI: 10.1016/j.actbio.2022.05.040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2022] [Revised: 04/25/2022] [Accepted: 05/20/2022] [Indexed: 11/01/2022]
Abstract
Corneal collagen crosslinking (CXL) is a commonly used minimally invasive surgical technique to prevent the progression of corneal ectasias, such as keratoconus. Unfortunately, riboflavin/UV-A light-based CXL procedures have not been successfully applied to all patients, and result in frequent complications, such as corneal haze and endothelial damage. We propose a new method for corneal crosslinking by using a Ruthenium (Ru) based water-soluble photoinitiator and visible light (430 nm). Tris(bipyridine)ruthenium(II) ([Ru(bpy)3]2+) and sodium persulfate (SPS) mixture covalently crosslinks free tyrosine, histidine, and lysine groups under visible light (400-450 nm), which prevents UV-A light-induced cytotoxicity in an efficient and time saving collagen crosslinking procedure. In this study, we investigated the effects of the Ru/visible blue light procedure on the viability and toxicity of human corneal epithelium, limbal, and stromal cells. Then bovine corneas crosslinked with ruthenium mixture and visible light were characterized, and their biomechanical properties were compared with the customized riboflavin/UV-A crosslinking approach in the clinics. Crosslinked corneas with a ruthenium-based CXL approach showed significantly higher young's modulus compared to riboflavin/UV-A light-based method applied to corneas. In addition, crosslinked corneas with both methods were characterized to evaluate the hydrodynamic behavior, optical transparency, and enzymatic resistance. In all biomechanical, biochemical, and optical tests used here, corneas that were crosslinked with ruthenium-based approach demonstrated better results than that of corneas crosslinked with riboflavin/ UV-A. This study is promising to be translated into a non-surgical therapy for all ectatic corneal pathologies as a result of mild conditions introduced here with visible light exposure and a nontoxic ruthenium-based photoinitiator to the cornea. STATEMENT OF SIGNIFICANCE: Keratoconus, one of the most frequent corneal diseases, could be treated with riboflavin and ultraviolet light-based photo-crosslinking application to the cornea of the patients. Unfortunately, this method has irreversible side effects and cannot be applied to all keratoconus patients. In this study, we exploited the photoactivation behavior of an organoruthenium compound to achieve corneal crosslinking. Ruthenium-based organic complex under visible light demonstrated significantly better biocompatibility and superior biomechanical results than riboflavin and ultraviolet light application. This study promises to translate into a new fast, efficient non-surgical therapy option for all ectatic corneal pathologies.
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12
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Xu F, Dawson C, Lamb M, Mueller E, Stefanek E, Akbari M, Hoare T. Hydrogels for Tissue Engineering: Addressing Key Design Needs Toward Clinical Translation. Front Bioeng Biotechnol 2022; 10:849831. [PMID: 35600900 PMCID: PMC9119391 DOI: 10.3389/fbioe.2022.849831] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2022] [Accepted: 04/12/2022] [Indexed: 12/15/2022] Open
Abstract
Graphical Abstract
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Affiliation(s)
- Fei Xu
- Department of Chemical Engineering, McMaster University, Hamilton, ON, Canada
| | - Chloe Dawson
- Department of Chemical Engineering, McMaster University, Hamilton, ON, Canada
| | - Makenzie Lamb
- Department of Chemical Engineering, McMaster University, Hamilton, ON, Canada
| | - Eva Mueller
- Department of Chemical Engineering, McMaster University, Hamilton, ON, Canada
| | - Evan Stefanek
- Department of Mechanical Engineering, University of Victoria, Victoria, BC, Canada
- Center for Advanced Materials and Related Technologies, University of Victoria, Victoria, BC, Canada
| | - Mohsen Akbari
- Department of Mechanical Engineering, University of Victoria, Victoria, BC, Canada
- Center for Advanced Materials and Related Technologies, University of Victoria, Victoria, BC, Canada
- Biotechnology Center, Silesian University of Technology, Gliwice, Poland
- *Correspondence: Mohsen Akbari, ; Todd Hoare,
| | - Todd Hoare
- Department of Chemical Engineering, McMaster University, Hamilton, ON, Canada
- *Correspondence: Mohsen Akbari, ; Todd Hoare,
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13
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Jagiełło A, Hu Q, Castillo U, Botvinick E. Patterned photocrosslinking to establish stiffness anisotropies in fibrous 3D hydrogels. Acta Biomater 2022; 141:39-47. [PMID: 34971786 DOI: 10.1016/j.actbio.2021.12.028] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2021] [Revised: 12/04/2021] [Accepted: 12/22/2021] [Indexed: 11/28/2022]
Abstract
Cells are known to constantly interact with their local extracellular matrix (ECM) and respond to a variety of biochemical and mechanical cues received from the ECM. Nonetheless, comprehensive understanding of cell-ECM interactions has been elusive. Many studies rely on analysis of cell behavior on 2D substrates, which do not reflect a natural cell environment. Further, lack of dynamic control over local stiffness anisotropies and fiber alignment hinders progress in studies in naturally derived fibrous 3D cultures. Here, we present a cell-safe method of patterned photocrosslinking, which can aid in studying biological hypotheses related to mechanotransduction in 3D hydrogels. As previously described by our group, ruthenium-catalyzed photocrosslinking (RCP) of selected ECM regions promotes localized increase in stiffness mediated by focused blue laser light in a confocal microscope. In this study, we further demonstrate that RCP can induce localized strain stiffening and fiber alignment outside of the selected crosslinked region and induce stiffness anisotropy biased towards the direction of fiber alignment. MDA-MB-231 cells are shown to respond to RCP-induced changes in local ECM architecture and display directional bias towards the direction of fiber alignment, as compared to control cells. Further, the effect of patterned crosslinking on a stiffness landscape is measured using multi-axes optical tweezers active microrheology (AMR) with backscattered laser beam illumination. AMR validates RCP as a suitable tool for creating distinct stiffness anisotropies which promote directed migration of cells, further underscoring the usefulness of RCP in cell-ECM studies. STATEMENT OF SIGNIFICANCE: Studies on cell-ECM interactions in 3D cultures have often been hindered by the lack of available tools to dynamically alter local ECM stiffness and fiber alignment. Here, we present a non-invasive, cell-safe and easily applicable method of patterned photocrosslinking, which can aid in studying biological hypotheses in fibrous 3D hydrogels. Ruthenium-catalyzed crosslinking (RCP) of selected fibrin ECM regions promotes localized increase in stiffness and creates distinct stiffness anisotropies in the presence of the focused blue laser light. Outside of the crosslinked region, RCP causes fiber alignment and strain stiffening in the ECM, verified using multi-axes optical tweezers active microrheology (AMR). Following RCP, human breast cancer MDA-MB-231 exhibit directed cell migration, validating usefulness of this method in cell-ECM studies.
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Affiliation(s)
- Alicja Jagiełło
- Department of Biomedical Engineering, University of California Irvine, Irvine, CA, 92697-2730, United States
| | - Qingda Hu
- Department of Biomedical Engineering, University of California Irvine, Irvine, CA, 92697-2730, United States; Center for Complex Biological Systems, University of California Irvine, Irvine, CA, 92697-2280, United States
| | - Ulysses Castillo
- Department of Biomedical Engineering, University of California Irvine, Irvine, CA, 92697-2730, United States
| | - Elliot Botvinick
- Department of Biomedical Engineering, University of California Irvine, Irvine, CA, 92697-2730, United States; Center for Complex Biological Systems, University of California Irvine, Irvine, CA, 92697-2280, United States; Beckman Laser Institute and Medical Clinic, University of California Irvine, Irvine, CA, 92612, United States; Department of Surgery, University of California Irvine, 333 City Boulevard, Suite 700, Orange, CA, 92868, United States; The Edwards Lifesciences Foundation Cardiovascular Innovation and Research Center, University of California Irvine, Irvine, CA, 92697-2730, United States.
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14
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Viray CM, van Magill B, Zreiqat H, Ramaswamy Y. Stereolithographic Visible-Light Printing of Poly(l-glutamic acid) Hydrogel Scaffolds. ACS Biomater Sci Eng 2022; 8:1115-1131. [PMID: 35179029 DOI: 10.1021/acsbiomaterials.1c01519] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Bioprinting is a promising fabrication technique aimed at developing biologically functional, tissue-like constructs for various biomedical applications. Among the different bioprinting approaches, vat polymerization-based techniques offer the highest feature resolution compared to more commonly used extrusion-based methods and therefore have greater potential to be utilized for printing complex hierarchical tissue architectures. Although significant efforts have been directed toward harnessing digital light processing techniques for high-resolution bioprinting, the use of stereolithography (SLA) setups for producing distinct hydrogel filaments smaller than 20 μm has received less attention. Improving the bioprinting resolution is still a technical challenge that must consider both the practical limitations of the bioprinter apparatus and the formulation of the cytocompatible bioresin. In this study, we developed a novel bioresin compatible with SLA and capable of printing high-resolution features. This resin, composed of a biosynthetic polypeptide poly(l-glutamic acid) functionalized with tyramine moieties (PLGA-Tyr), was crosslinked using a visible-light photoinitiator system. Varying concentrations of PLGA-Tyr and the co-photoinitiator were evaluated for the hydrogel system's gelation ability, swelling characteristics, degradation profiles, mechanical properties, and cell viability post-encapsulation. This study introduces a custom-built, cost-effective, visible-light SLA bioprinting system named the "MicroNC". Using the newly developed visible-light bioresin, we demonstrated for the first time the ability to fabricate hydrogel scaffolds with well-resolved filaments (less than 8 μm in width) capable of supporting cell viability and proliferation and directing cellular morphology at the single-cell level for up to 14 days. Overall, these experiments have underscored the exciting potential of using the visible-light-photoinitiated PLGA-Tyr material system for developing physiologically relevant in vitro hydrogel scaffolds with feature resolutions comparable to the dimensions of individual human cells for a wide range of biomedical applications.
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Affiliation(s)
- Christina Marie Viray
- School of Biomedical Engineering, The University of Sydney, Sydney, New South Wales 2006, Australia.,ARC Training Centre for Innovative BioEngineering, The University of Sydney, Sydney, New South Wales 2006, Australia
| | - Benjamin van Magill
- School of Aerospace, Mechanical, and Mechatronic Engineering, The University of Sydney, Sydney, New South Wales 2006, Australia
| | - Hala Zreiqat
- School of Biomedical Engineering, The University of Sydney, Sydney, New South Wales 2006, Australia.,ARC Training Centre for Innovative BioEngineering, The University of Sydney, Sydney, New South Wales 2006, Australia.,Sydney Nano Institute, The University of Sydney, Sydney, New South Wales 2006, Australia
| | - Yogambha Ramaswamy
- School of Biomedical Engineering, The University of Sydney, Sydney, New South Wales 2006, Australia.,Sydney Nano Institute, The University of Sydney, Sydney, New South Wales 2006, Australia
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15
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Murray PD, Cox JH, Chiappini ND, Roos CB, McLoughlin EA, Hejna BG, Nguyen ST, Ripberger HH, Ganley JM, Tsui E, Shin NY, Koronkiewicz B, Qiu G, Knowles RR. Photochemical and Electrochemical Applications of Proton-Coupled Electron Transfer in Organic Synthesis. Chem Rev 2022; 122:2017-2291. [PMID: 34813277 PMCID: PMC8796287 DOI: 10.1021/acs.chemrev.1c00374] [Citation(s) in RCA: 172] [Impact Index Per Article: 86.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2021] [Indexed: 12/16/2022]
Abstract
We present here a review of the photochemical and electrochemical applications of multi-site proton-coupled electron transfer (MS-PCET) in organic synthesis. MS-PCETs are redox mechanisms in which both an electron and a proton are exchanged together, often in a concerted elementary step. As such, MS-PCET can function as a non-classical mechanism for homolytic bond activation, providing opportunities to generate synthetically useful free radical intermediates directly from a wide variety of common organic functional groups. We present an introduction to MS-PCET and a practitioner's guide to reaction design, with an emphasis on the unique energetic and selectivity features that are characteristic of this reaction class. We then present chapters on oxidative N-H, O-H, S-H, and C-H bond homolysis methods, for the generation of the corresponding neutral radical species. Then, chapters for reductive PCET activations involving carbonyl, imine, other X═Y π-systems, and heteroarenes, where neutral ketyl, α-amino, and heteroarene-derived radicals can be generated. Finally, we present chapters on the applications of MS-PCET in asymmetric catalysis and in materials and device applications. Within each chapter, we subdivide by the functional group undergoing homolysis, and thereafter by the type of transformation being promoted. Methods published prior to the end of December 2020 are presented.
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Affiliation(s)
- Philip
R. D. Murray
- Department of Chemistry, Princeton
University, Princeton, New Jersey 08544, United States
| | - James H. Cox
- Department of Chemistry, Princeton
University, Princeton, New Jersey 08544, United States
| | - Nicholas D. Chiappini
- Department of Chemistry, Princeton
University, Princeton, New Jersey 08544, United States
| | - Casey B. Roos
- Department of Chemistry, Princeton
University, Princeton, New Jersey 08544, United States
| | | | - Benjamin G. Hejna
- Department of Chemistry, Princeton
University, Princeton, New Jersey 08544, United States
| | - Suong T. Nguyen
- Department of Chemistry, Princeton
University, Princeton, New Jersey 08544, United States
| | - Hunter H. Ripberger
- Department of Chemistry, Princeton
University, Princeton, New Jersey 08544, United States
| | - Jacob M. Ganley
- Department of Chemistry, Princeton
University, Princeton, New Jersey 08544, United States
| | - Elaine Tsui
- Department of Chemistry, Princeton
University, Princeton, New Jersey 08544, United States
| | - Nick Y. Shin
- Department of Chemistry, Princeton
University, Princeton, New Jersey 08544, United States
| | - Brian Koronkiewicz
- Department of Chemistry, Princeton
University, Princeton, New Jersey 08544, United States
| | - Guanqi Qiu
- Department of Chemistry, Princeton
University, Princeton, New Jersey 08544, United States
| | - Robert R. Knowles
- Department of Chemistry, Princeton
University, Princeton, New Jersey 08544, United States
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16
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Liu W, Watson EE, Winssinger N. Photocatalysis in Chemical Biology: Extending the Scope of Optochemical Control and Towards New Frontiers in Semisynthetic Bioconjugates and Biocatalysis. Helv Chim Acta 2021. [DOI: 10.1002/hlca.202100179] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Weilong Liu
- Department of Organic Chemistry NCCR Chemical Biology Faculty of Science University of Geneva 30 quai Ernest Ansermet CH-1211 Geneva Switzerland
| | - Emma E. Watson
- Department of Organic Chemistry NCCR Chemical Biology Faculty of Science University of Geneva 30 quai Ernest Ansermet CH-1211 Geneva Switzerland
| | - Nicolas Winssinger
- Department of Organic Chemistry NCCR Chemical Biology Faculty of Science University of Geneva 30 quai Ernest Ansermet CH-1211 Geneva Switzerland
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17
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Lechner VM, Nappi M, Deneny PJ, Folliet S, Chu JCK, Gaunt MJ. Visible-Light-Mediated Modification and Manipulation of Biomacromolecules. Chem Rev 2021; 122:1752-1829. [PMID: 34546740 DOI: 10.1021/acs.chemrev.1c00357] [Citation(s) in RCA: 75] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Chemically modified biomacromolecules-i.e., proteins, nucleic acids, glycans, and lipids-have become crucial tools in chemical biology. They are extensively used not only to elucidate cellular processes but also in industrial applications, particularly in the context of biopharmaceuticals. In order to enable maximum scope for optimization, it is pivotal to have a diverse array of biomacromolecule modification methods at one's disposal. Chemistry has driven many significant advances in this area, and especially recently, numerous novel visible-light-induced photochemical approaches have emerged. In these reactions, light serves as an external source of energy, enabling access to highly reactive intermediates under exceedingly mild conditions and with exquisite spatiotemporal control. While UV-induced transformations on biomacromolecules date back decades, visible light has the unmistakable advantage of being considerably more biocompatible, and a spectrum of visible-light-driven methods is now available, chiefly for proteins and nucleic acids. This review will discuss modifications of native functional groups (FGs), including functionalization, labeling, and cross-linking techniques as well as the utility of oxidative degradation mediated by photochemically generated reactive oxygen species. Furthermore, transformations at non-native, bioorthogonal FGs on biomacromolecules will be addressed, including photoclick chemistry and DNA-encoded library synthesis as well as methods that allow manipulation of the activity of a biomacromolecule.
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Affiliation(s)
- Vivian M Lechner
- Yusuf Hamied Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, United Kingdom
| | - Manuel Nappi
- Yusuf Hamied Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, United Kingdom
| | - Patrick J Deneny
- Yusuf Hamied Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, United Kingdom
| | - Sarah Folliet
- Yusuf Hamied Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, United Kingdom
| | - John C K Chu
- Yusuf Hamied Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, United Kingdom
| | - Matthew J Gaunt
- Yusuf Hamied Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, United Kingdom
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18
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Cell contact guidance via sensing anisotropy of network mechanical resistance. Proc Natl Acad Sci U S A 2021; 118:2024942118. [PMID: 34266950 DOI: 10.1073/pnas.2024942118] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Despite the ubiquitous importance of cell contact guidance, the signal-inducing contact guidance of mammalian cells in an aligned fibril network has defied elucidation. This is due to multiple interdependent signals that an aligned fibril network presents to cells, including, at least, anisotropy of adhesion, porosity, and mechanical resistance. By forming aligned fibrin gels with the same alignment strength, but cross-linked to different extents, the anisotropic mechanical resistance hypothesis of contact guidance was tested for human dermal fibroblasts. The cross-linking was shown to increase the mechanical resistance anisotropy, without detectable change in network microstructure and without change in cell adhesion to the cross-linked fibrin gel. This methodology thus isolated anisotropic mechanical resistance as a variable for fixed anisotropy of adhesion and porosity. The mechanical resistance anisotropy |Y*| -1 - |X*| -1 increased over fourfold in terms of the Fourier magnitudes of microbead displacement |X*| and |Y*| at the drive frequency with respect to alignment direction Y obtained by optical forces in active microrheology. Cells were found to exhibit stronger contact guidance in the cross-linked gels possessing greater mechanical resistance anisotropy: the cell anisotropy index based on the tensor of cell orientation, which has a range 0 to 1, increased by 18% with the fourfold increase in mechanical resistance anisotropy. We also show that modulation of adhesion via function-blocking antibodies can modulate the guidance response, suggesting a concomitant role of cell adhesion. These results indicate that fibroblasts can exhibit contact guidance in aligned fibril networks by sensing anisotropy of network mechanical resistance.
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19
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20
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Mu X, Agostinacchio F, Xiang N, Pei Y, Khan Y, Guo C, Cebe P, Motta A, Kaplan DL. Recent Advances in 3D Printing with Protein-Based Inks. Prog Polym Sci 2021; 115:101375. [PMID: 33776158 PMCID: PMC7996313 DOI: 10.1016/j.progpolymsci.2021.101375] [Citation(s) in RCA: 55] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Three-dimensional (3D) printing is a transformative manufacturing strategy, allowing rapid prototyping, customization, and flexible manipulation of structure-property relationships. Proteins are particularly appealing to formulate inks for 3D printing as they serve as essential structural components of living systems, provide a support presence in and around cells and for tissue functions, and also provide the basis for many essential ex vivo secreted structures in nature. Protein-based inks are beneficial in vivo due to their mechanics, chemical and physical match to the specific tissue, and full degradability, while also to promoting implant-host integration and serving as an interface between technology and biology. Exploiting the biological, chemical, and physical features of protein-based inks can provide key opportunities to meet the needs of tissue engineering and regenerative medicine. Despite these benefits, protein-based inks impose nontrivial challenges to 3D printing such as concentration and rheological features and reconstitution of the structural hierarchy observed in nature that is a source of the robust mechanics and functions of these materials. This review introduces photo-crosslinking mechanisms and rheological principles that underpins a variety of 3D printing techniques. The review also highlights recent advances in the design, development, and biomedical utility of monolithic and composite inks from a range of proteins, including collagen, silk, fibrinogen, and others. One particular focus throughout the review is to introduce unique material characteristics of proteins, including amino acid sequences, molecular assembly, and secondary conformations, which are useful for designing printing inks and for controlling the printed structures. Future perspectives of 3D printing with protein-based inks are also provided to support the promising spectrum of biomedical research accessible to these materials.
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Affiliation(s)
- Xuan Mu
- Department of Biomedical Engineering, Tufts University, Medford, MA 02155, USA
| | - Francesca Agostinacchio
- Department of Biomedical Engineering, Tufts University, Medford, MA 02155, USA
- Department of Industrial Engineering, University of Trento, via Sommarive 9, Trento 38123, Italy
| | - Ning Xiang
- Department of Biomedical Engineering, Tufts University, Medford, MA 02155, USA
| | - Ying Pei
- Department of Biomedical Engineering, Tufts University, Medford, MA 02155, USA
- School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, China
| | - Yousef Khan
- Department of Biomedical Engineering, Tufts University, Medford, MA 02155, USA
| | - Chengchen Guo
- Department of Biomedical Engineering, Tufts University, Medford, MA 02155, USA
| | - Peggy Cebe
- Department of Physics and Astronomy, Tufts University, Medford, MA 02155, USA
| | - Antonella Motta
- Department of Industrial Engineering, University of Trento, via Sommarive 9, Trento 38123, Italy
| | - David L. Kaplan
- Department of Biomedical Engineering, Tufts University, Medford, MA 02155, USA
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21
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Interrogating biological systems using visible-light-powered catalysis. Nat Rev Chem 2021; 5:322-337. [PMID: 37117838 DOI: 10.1038/s41570-021-00265-6] [Citation(s) in RCA: 45] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/24/2021] [Indexed: 12/12/2022]
Abstract
Light-powered catalysis has found broad utility as a chemical transformation strategy, with widespread impact on energy, environment, drug discovery and human health. A noteworthy application impacting human health is light-induced sensitization of cofactors for photodynamic therapy in cancer treatment. The clinical adoption of this photosensitization approach has inspired the search for other photochemical methods, such as photoredox catalysis, to influence biological discovery. Over the past decade, light-mediated catalysis has enabled the discovery of valuable synthetic transformations, propelling it to become a highly utilized chemical synthesis strategy. The reaction components required to achieve a photoredox reaction are identical to photosensitization (catalyst, light source and substrate), making it ideally suited for probing biological environments. In this Review, we discuss the therapeutic application of photosensitization and advancements made in developing next-generation catalysts. We then highlight emerging uses of photoredox catalytic methods for protein bioconjugation and probing complex cellular environments in living cells.
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22
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Comparative adhesion of chemically and physically crosslinked poly(acrylic acid)-based hydrogels to soft tissues. Eur Polym J 2021. [DOI: 10.1016/j.eurpolymj.2020.110250] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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23
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Niederer KA, Gilmartin PH, Kozlowski MC. Oxidative Photocatalytic Homo- and Cross-Coupling of Phenols: Nonenzymatic, Catalytic Method for Coupling Tyrosine. ACS Catal 2020; 10:14615-14623. [PMID: 33927912 PMCID: PMC8078885 DOI: 10.1021/acscatal.0c04515] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The oxidative photocatalytic method for phenol-phenol homo-coupling and cross-coupling is described and isolated yields of 16-97% are obtained. Measured oxidation potentials and computed nucleophilicity parameters support a mechanism of nucleophilic attack of one partner onto the oxidized neutral radical form of the other partner. Understanding of this model permitted development of cross-coupling reactions between nucleophilic phenols/arenes and easily oxidized phenols with high selectivity and efficiency. A highlight of this method is that one equivalent of each coupling partner is utilized. Building on these findings, a non-enzymatic, catalytic method for coupling tyrosine was also developed.
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Affiliation(s)
- Kyle A Niederer
- Department of Chemistry, Roy and Diana Vagelos Laboratories, University of Pennsylvania, Philadelphia, Pennsylvania 19014, United States
| | - Philip H Gilmartin
- Department of Chemistry, Roy and Diana Vagelos Laboratories, University of Pennsylvania, Philadelphia, Pennsylvania 19014, United States
| | - Marisa C Kozlowski
- Department of Chemistry, Roy and Diana Vagelos Laboratories, University of Pennsylvania, Philadelphia, Pennsylvania 19014, United States
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24
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Mu X, Sahoo JK, Cebe P, Kaplan DL. Photo-Crosslinked Silk Fibroin for 3D Printing. Polymers (Basel) 2020; 12:E2936. [PMID: 33316890 PMCID: PMC7763742 DOI: 10.3390/polym12122936] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2020] [Revised: 12/04/2020] [Accepted: 12/07/2020] [Indexed: 12/14/2022] Open
Abstract
Silk fibroin in material formats provides robust mechanical properties, and thus is a promising protein for 3D printing inks for a range of applications, including tissue engineering, bioelectronics, and bio-optics. Among the various crosslinking mechanisms, photo-crosslinking is particularly useful for 3D printing with silk fibroin inks due to the rapid kinetics, tunable crosslinking dynamics, light-assisted shape control, and the option to use visible light as a biocompatible processing condition. Multiple photo-crosslinking approaches have been applied to native or chemically modified silk fibroin, including photo-oxidation and free radical methacrylate polymerization. The molecular characteristics of silk fibroin, i.e., conformational polymorphism, provide a unique method for crosslinking and microfabrication via light. The molecular design features of silk fibroin inks and the exploitation of photo-crosslinking mechanisms suggest the exciting potential for meeting many biomedical needs in the future.
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Affiliation(s)
- Xuan Mu
- Department of Biomedical Engineering, Tufts University, Medford, MA 02155, USA; (X.M.); (J.K.S.)
| | - Jugal Kishore Sahoo
- Department of Biomedical Engineering, Tufts University, Medford, MA 02155, USA; (X.M.); (J.K.S.)
| | - Peggy Cebe
- Department of Physics and Astronomy, Tufts University, Medford, MA 02155, USA;
| | - David L. Kaplan
- Department of Biomedical Engineering, Tufts University, Medford, MA 02155, USA; (X.M.); (J.K.S.)
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25
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Hanson BS, Dougan L. Network Growth and Structural Characteristics of Globular Protein Hydrogels. Macromolecules 2020. [DOI: 10.1021/acs.macromol.0c00890] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Benjamin S. Hanson
- School of Physics and Astronomy, University of Leeds, Leeds LS2 9JT, U.K
| | - Lorna Dougan
- School of Physics and Astronomy, University of Leeds, Leeds LS2 9JT, U.K
- Astbury Centre for Structural Molecular Biology, University of Leeds, Leeds LS2 9JT, U.K
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26
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Lim KS, Abinzano F, Nuñez Bernal P, Sanchez AA, Atienza-Roca P, Otto IA, Peiffer QC, Matsusaki M, Woodfield TBF, Malda J, Levato R. One-Step Photoactivation of a Dual-Functionalized Bioink as Cell Carrier and Cartilage-Binding Glue for Chondral Regeneration. Adv Healthc Mater 2020; 9:e1901792. [PMID: 32324342 PMCID: PMC7116266 DOI: 10.1002/adhm.201901792] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2019] [Revised: 03/08/2020] [Accepted: 03/09/2020] [Indexed: 12/14/2022]
Abstract
Cartilage defects can result in pain, disability, and osteoarthritis. Hydrogels providing a chondroregeneration-permissive environment are often mechanically weak and display poor lateral integration into the surrounding cartilage. This study develops a visible-light responsive gelatin ink with enhanced interactions with the native tissue, and potential for intraoperative bioprinting. A dual-functionalized tyramine and methacryloyl gelatin (GelMA-Tyr) is synthesized. Photo-crosslinking of both groups is triggered in a single photoexposure by cell-compatible visible light in presence of tris(2,2'-bipyridyl)dichlororuthenium(II) and sodium persulfate as initiators. Neo-cartilage formation from embedded chondroprogenitor cells is demonstrated in vitro, and the hydrogel is successfully applied as bioink for extrusion-printing. Visible light in situ crosslinking in cartilage defects results in no damage to the surrounding tissue, in contrast to the native chondrocyte death caused by UV light (365-400 nm range), commonly used in biofabrication. Tyramine-binding to proteins in native cartilage leads to a 15-fold increment in the adhesive strength of the bioglue compared to pristine GelMA. Enhanced adhesion is observed also when the ink is extruded as printable filaments into the defect. Visible-light reactive GelMA-Tyr bioinks can act as orthobiologic carriers for in situ cartilage repair, providing a permissive environment for chondrogenesis, and establishing safe lateral integration into chondral defects.
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Affiliation(s)
- Khoon S. Lim
- Christchurch Regenerative Medicine and Tissue Engineering (CReaTE)
Group and Medical Technologies Centre of Research Excellence (MedTech
CoRE)
- Department of Orthopaedic Surgery and Musculoskeletal Medicine
University of Otago Christchurch 2 Riccarton Ave, Christchurch 8140, New
Zealand
| | - Florencia Abinzano
- Department of Orthopaedics and Regenerative Medicine Center
University Medical Center Utrecht Utrecht University Heidelberglaan 100,
Utrecht 3584 CX, The Netherlands
| | - Paulina Nuñez Bernal
- Department of Orthopaedics and Regenerative Medicine Center
University Medical Center Utrecht Utrecht University Heidelberglaan 100,
Utrecht 3584 CX, The Netherlands
| | - Ane Albillos Sanchez
- Department of Orthopaedics and Regenerative Medicine Center
University Medical Center Utrecht Utrecht University Heidelberglaan 100,
Utrecht 3584 CX, The Netherlands
| | - Pau Atienza-Roca
- Christchurch Regenerative Medicine and Tissue Engineering (CReaTE)
Group and Medical Technologies Centre of Research Excellence (MedTech
CoRE)
- Department of Orthopaedic Surgery and Musculoskeletal Medicine
University of Otago Christchurch 2 Riccarton Ave, Christchurch 8140, New
Zealand
| | - Iris A. Otto
- Department of Orthopaedics and Regenerative Medicine Center
University Medical Center Utrecht Utrecht University Heidelberglaan 100,
Utrecht 3584 CX, The Netherlands
| | - Quentin C. Peiffer
- Department of Orthopaedics and Regenerative Medicine Center
University Medical Center Utrecht Utrecht University Heidelberglaan 100,
Utrecht 3584 CX, The Netherlands
| | - Michiya Matsusaki
- Department of Applied Chemistry Graduate School of Engineering
Osaka University 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Tim B. F. Woodfield
- Christchurch Regenerative Medicine and Tissue Engineering (CReaTE)
Group and Medical Technologies Centre of Research Excellence (MedTech
CoRE)
- Department of Orthopaedic Surgery and Musculoskeletal Medicine
University of Otago Christchurch 2 Riccarton Ave, Christchurch 8140, New
Zealand
| | - Jos Malda
- Department of Orthopaedics and Regenerative Medicine Center
University Medical Center Utrecht Utrecht University Heidelberglaan 100,
Utrecht 3584 CX, The Netherlands
- Department of Clinical Sciences Faculty of Veterinary Medicine
Utrecht University Yalelaan 1, Utrecht 3584 CL, The Netherlands
| | - Riccardo Levato
- Levato Department of Orthopaedics and Regenerative Medicine Center
University Medical Center Utrecht Utrecht University Heidelberglaan 100,
Utrecht 3584 CX, The Netherlands
- Department of Clinical Sciences Faculty of Veterinary Medicine
Utrecht University Yalelaan 1, Utrecht 3584 CL, The Netherlands
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27
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Hughes MDG, Cussons S, Mahmoudi N, Brockwell DJ, Dougan L. Single molecule protein stabilisation translates to macromolecular mechanics of a protein network. SOFT MATTER 2020; 16:6389-6399. [PMID: 32578583 DOI: 10.1039/c9sm02484k] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Folded globular proteins are attractive building blocks for biopolymer-based materials, as their mechanically resistant structures carry out diverse biological functionality. While much is now understood about the mechanical response of single folded proteins, a major challenge is to understand and predictably control how single protein mechanics translates to the collective response of a network of connected folded proteins. Here, by utilising the binding of maltose to hydrogels constructed from photo-chemically cross-linked maltose binding protein (MBP), we investigate the effects of protein stabilisation at the molecular level on the macroscopic mechanical and structural properties of a protein-based hydrogel. Rheological measurements show an enhancement in the mechanical strength and energy dissipation of MBP hydrogels in the presence of maltose. Circular dichroism spectroscopy and differential scanning calorimetry measurements show that MBP remains both folded and functional in situ. By coupling these mechanical measurements with mesoscopic structural information obtained by small angle scattering, we propose an occupation model in which higher proportions of stabilised, ligand occupied, protein building blocks translate their increased stability to the macroscopic properties of the hydrogel network. This provides powerful opportunities to exploit environmentally responsive folded protein-based biomaterials for many broad applications.
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Affiliation(s)
- Matt D G Hughes
- School of Physics and Astronomy, Faculty of Engineering and Physical Sciences, University of Leeds, Leeds, UK.
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28
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Carnes ME, Gonyea CR, Mooney RG, Njihia JW, Coburn JM, Pins GD. Horseradish Peroxidase-Catalyzed Crosslinking of Fibrin Microthread Scaffolds. Tissue Eng Part C Methods 2020; 26:317-331. [PMID: 32364015 PMCID: PMC7310227 DOI: 10.1089/ten.tec.2020.0083] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Accepted: 04/30/2020] [Indexed: 11/13/2022] Open
Abstract
Horseradish peroxidase (HRP) has been investigated as a catalyst to crosslink tissue-engineered hydrogels because of its mild reaction conditions and ability to modulate the mechanical properties of the matrix. Here, we report the results of the first study investigating the use of HRP to crosslink fibrin scaffolds. We examined the effect of varying HRP and hydrogen peroxide (H2O2) incorporation strategies on the resulting crosslink density and structural properties of fibrin in a microthread scaffold format. Primary (1°) and secondary (2°) scaffold modification techniques were evaluated to crosslink fibrin microthread scaffolds. A primary scaffold modification technique was defined as incorporating crosslinking agents into the microthread precursor solutions during extrusion. A secondary scaffold modification technique was defined as incubating the microthreads in a postprocessing crosslinker bath. Fibrin microthreads were enzymatically crosslinked through primary, secondary, or a combination of both approaches. All fibrin microthread scaffolds crosslinked with HRP and H2O2 via primary and/or secondary methods exhibited an increase in dityrosine crosslink density compared with uncrosslinked control microthreads, demonstrated by scaffold fluorescence. Fourier transform infrared spectroscopy indicated the formation of isodityrosine bonds in 1° HRP crosslinked microthreads. Characterization of tensile mechanical properties revealed that all HRP crosslinked microthreads were significantly stronger than control microthreads. Primary (1°) HRP crosslinked microthreads also demonstrated significantly slower degradation than control microthreads, suggesting that incorporating HRP and H2O2 during extrusion yields scaffolds with increased resistance to proteolytic degradation. Finally, cells seeded on HRP crosslinked microthreads retained a high degree of viability, demonstrating that HRP crosslinking yields biocompatible scaffolds that are suitable for tissue engineering. The goal of this work was to facilitate the logical design of enzymatically crosslinked fibrin microthreads with tunable structural properties, enabling their application for engineered tissue constructs with varied mechanical and structural properties.
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Affiliation(s)
- Meagan E. Carnes
- Department of Biomedical Engineering, Worcester Polytechnic Institute, Worcester, Massachusetts, USA
| | - Cailin R. Gonyea
- Department of Biomedical Engineering, Worcester Polytechnic Institute, Worcester, Massachusetts, USA
| | - Rebecca G. Mooney
- Department of Biomedical Engineering, Bucknell University, Lewisburg, Pennsylvania, USA
| | - Jane W. Njihia
- Department of Chemical and Biomolecular Engineering, University of Maryland, College Park, Maryland, USA
| | - Jeannine M. Coburn
- Department of Biomedical Engineering, Worcester Polytechnic Institute, Worcester, Massachusetts, USA
| | - George D. Pins
- Department of Biomedical Engineering, Worcester Polytechnic Institute, Worcester, Massachusetts, USA
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29
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Wei SM, Pei MY, Pan WL, Thissen H, Tsai SW. Gelatin Hydrogels Reinforced by Absorbable Nanoparticles and Fibrils Cured In Situ by Visible Light for Tissue Adhesive Applications. Polymers (Basel) 2020; 12:E1113. [PMID: 32414044 PMCID: PMC7285276 DOI: 10.3390/polym12051113] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2020] [Revised: 05/11/2020] [Accepted: 05/11/2020] [Indexed: 12/21/2022] Open
Abstract
Most gelatin hydrogels used in regenerative medicine applications today are fabricated by photocrosslinking due to the convenience and speed of this method. However, in most cases photoinitiators are used, which require UV light, which, in turn, can cause cell and tissue damage, or using functionalized gelatin. Recently, ruthenium (II) tris-bipyridyl chloride has been studied as an initiator that can induce dityrosine bond formation using visible light. In addition, continuous fibrils and small particles are often used to reinforce composite materials. Therefore, this study investigated the visible-light-induced photocrosslinking of native gelatin molecules via dityrosine bonds formation as well as gel reinforcement by collagen fibrils and mesoporous bioactive glass (MBG) particles. The results show that collagen and MBG exerted a synergistic effect on maintaining gel integrity with a dental LED curing light when the irradiation time was shortened to 30 s. Without the two reinforcing components, the gel could not form a geometric shape stable gel even when the exposure time was 120 s. The shear strength increased by 62% with the collagen and MBG compared with the blank control. Furthermore, our results demonstrate that the addition of collagen and MBG enhanced gel stability in an artificial saliva solution. These results demonstrate the considerable advantages of using tyrosine-containing biomolecules, and using a dental LED curing light for the crosslinking of hydrogels in terms of their suitability and feasibility for use as bioadhesives in confined clinical working space, such as the oral cavity, and in application as in situ-crosslinked injectable hydrogels.
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Affiliation(s)
- Shih-Min Wei
- Graduate Institute of Biomedical Engineering, Chang Gung University, Taoyuan 333, Taiwan;
| | - Ming-Ying Pei
- Department of Biomedical Sciences, Chang Gung University, Taoyuan 333, Taiwan;
| | - Whei-Lin Pan
- Department of Periodontics, Chang Gung Memorial Hospital, Taipei 105, Taiwan;
| | - Helmut Thissen
- Commonwealth Scientific and Industrial Research Organisation (CSIRO) Manufacturing, Clayton, VIC 3168, Australia;
| | - Shiao-Wen Tsai
- Graduate Institute of Biomedical Engineering, Chang Gung University, Taoyuan 333, Taiwan;
- Department of Periodontics, Chang Gung Memorial Hospital, Taipei 105, Taiwan;
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30
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Ng WL, Lee JM, Zhou M, Chen YW, Lee KXA, Yeong WY, Shen YF. Vat polymerization-based bioprinting-process, materials, applications and regulatory challenges. Biofabrication 2020; 12:022001. [PMID: 31822648 DOI: 10.1088/1758-5090/ab6034] [Citation(s) in RCA: 172] [Impact Index Per Article: 43.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Over the years, the field of bioprinting has attracted attention for its highly automated fabrication system that enables the precise patterning of living cells and biomaterials at pre-defined positions for enhanced cell-matrix and cell-cell interactions. Notably, vat polymerization (VP)-based bioprinting is an emerging bioprinting technique for various tissue engineering applications due to its high fabrication accuracy. Particularly, different photo-initiators (PIs) are utilized during the bioprinting process to facilitate the crosslinking mechanism for fabrication of high-resolution complex tissue constructs. The advancements in VP-based printing have led to a paradigm shift in fabrication of tissue constructs from cell-seeding of tissue scaffolds (non-biocompatible fabrication process) to direct bioprinting of cell-laden tissue constructs (biocompatible fabrication process). This paper, presenting a first-time comprehensive review of the VP-based bioprinting process, provides an in-depth analysis and comparison of the various biocompatible PIs and highlights the important considerations and bioprinting requirements. This review paper reports a detailed analysis of its printing process and the influence of light-based curing modality and PIs on living cells. Lastly, this review also highlights the significance of VP-based bioprinting, the regulatory challenges and presents future directions to transform the VP-based printing technology into imperative tools in the field of tissue engineering and regenerative medicine. The readers will be informed on the current limitations and achievements of the VP-based bioprinting techniques. Notably, the readers will realize the importance and value of highly-automated platforms for tissue engineering applications and be able to develop objective viewpoints towards this field.
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Affiliation(s)
- Wei Long Ng
- HP-NTU Digital Manufacturing Corporate Lab, 50 Nanyang Avenue, 639798, Singapore. Singapore Centre for 3D Printing (SC3DP), School of Mechanical and Aerospace Engineering, Nanyang Technological University (NTU), 50 Nanyang Avenue, 639798, Singapore
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31
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Cui X, Soliman BG, Alcala‐Orozco CR, Li J, Vis MAM, Santos M, Wise SG, Levato R, Malda J, Woodfield TBF, Rnjak‐Kovacina J, Lim KS. Rapid Photocrosslinking of Silk Hydrogels with High Cell Density and Enhanced Shape Fidelity. Adv Healthc Mater 2020; 9:e1901667. [PMID: 31943911 DOI: 10.1002/adhm.201901667] [Citation(s) in RCA: 73] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2019] [Revised: 12/12/2019] [Indexed: 12/14/2022]
Abstract
Silk fibroin hydrogels crosslinked through di-tyrosine bonds are clear, elastomeric constructs with immense potential in regenerative medicine applications. In this study, demonstrated is a new visible light-mediated photoredox system for di-tyrosine bond formation in silk fibroin that overcomes major limitations of current conventional enzymatic-based crosslinking. This photomediated system rapidly crosslinks silk fibroin (<1 min), allowing encapsulation of cells at significantly higher cell densities (15 million cells mL-1 ) while retaining high cell viability (>80%). The photocrosslinked silk hydrogels present more stable mechanical properties which do not undergo spontaneous transition to stiff, β-sheet-rich networks typically seen for enzymatically crosslinked systems. These hydrogels also support long-term culture of human articular chondrocytes, with excellent cartilage tissue formation. This system also facilitates the first demonstration of biofabrication of silk fibroin constructs in the absence of chemical modification of the protein structure or rheological additives. Cell-laden constructs with complex, ordered, graduated architectures, and high resolution (40 µm) are fabricated using the photocrosslinking system, which cannot be achieved using the enzymatic crosslinking system. Taken together, this work demonstrates the immense potential of a new crosslinking approach for fabrication of elastomeric silk hydrogels with applications in biofabrication and tissue regeneration.
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Affiliation(s)
- Xiaolin Cui
- Christchurch Regenerative Medicine and Tissue Engineering (CReaTE) Group Department of Orthopaedics Surgery and Musculoskeletal Medicine University of Otago Christchurch 8011 New Zealand
- Medical Technologies Centre of Research Excellence Auckland 1010 New Zealand
| | - Bram G. Soliman
- Christchurch Regenerative Medicine and Tissue Engineering (CReaTE) Group Department of Orthopaedics Surgery and Musculoskeletal Medicine University of Otago Christchurch 8011 New Zealand
| | - Cesar R. Alcala‐Orozco
- Christchurch Regenerative Medicine and Tissue Engineering (CReaTE) Group Department of Orthopaedics Surgery and Musculoskeletal Medicine University of Otago Christchurch 8011 New Zealand
| | - Jun Li
- Christchurch Regenerative Medicine and Tissue Engineering (CReaTE) Group Department of Orthopaedics Surgery and Musculoskeletal Medicine University of Otago Christchurch 8011 New Zealand
| | - Michelle A. M. Vis
- Christchurch Regenerative Medicine and Tissue Engineering (CReaTE) Group Department of Orthopaedics Surgery and Musculoskeletal Medicine University of Otago Christchurch 8011 New Zealand
| | - Miguel Santos
- School of Medical Sciences Department of Physiology University of Sydney Camperdown NSW 2006 Australia
- Charles Perkins Centre University of Sydney Camperdown NSW 2006 Australia
| | - Steven G. Wise
- School of Medical Sciences Department of Physiology University of Sydney Camperdown NSW 2006 Australia
- Charles Perkins Centre University of Sydney Camperdown NSW 2006 Australia
| | - Riccardo Levato
- Regenerative Medicine Center Utrecht Heidelberglaan 100 3584 CX Utrecht The Netherlands
- Department of Orthopaedics University Medical Center Utrecht Heidelberglaan 100 3584 CX Utrecht The Netherlands
| | - Jos Malda
- Regenerative Medicine Center Utrecht Heidelberglaan 100 3584 CX Utrecht The Netherlands
- Department of Orthopaedics University Medical Center Utrecht Heidelberglaan 100 3584 CX Utrecht The Netherlands
- Department of Equine Sciences Faculty of Veterinary Medicine Utrecht University Domplein 29 3512 JE Utrecht The Netherlands
| | - Tim B. F. Woodfield
- Christchurch Regenerative Medicine and Tissue Engineering (CReaTE) Group Department of Orthopaedics Surgery and Musculoskeletal Medicine University of Otago Christchurch 8011 New Zealand
- Medical Technologies Centre of Research Excellence Auckland 1010 New Zealand
- Maurice Wilkins Centre for Molecular Biodiscovery Auckland 1010 New Zealand
| | - Jelena Rnjak‐Kovacina
- Graduate School of Biomedical Engineering University of New South Wales Sydney 2052 Australia
| | - Khoon S. Lim
- Christchurch Regenerative Medicine and Tissue Engineering (CReaTE) Group Department of Orthopaedics Surgery and Musculoskeletal Medicine University of Otago Christchurch 8011 New Zealand
- Medical Technologies Centre of Research Excellence Auckland 1010 New Zealand
- Maurice Wilkins Centre for Molecular Biodiscovery Auckland 1010 New Zealand
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32
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Multipotency expression of human adipose stem cells in filament-like alginate and gelatin derivative hydrogel fabricated through visible light-initiated crosslinking. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 103:109808. [DOI: 10.1016/j.msec.2019.109808] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2019] [Revised: 05/12/2019] [Accepted: 05/26/2019] [Indexed: 12/17/2022]
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33
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Hu W, Wang Z, Xiao Y, Zhang S, Wang J. Advances in crosslinking strategies of biomedical hydrogels. Biomater Sci 2019; 7:843-855. [PMID: 30648168 DOI: 10.1039/c8bm01246f] [Citation(s) in RCA: 399] [Impact Index Per Article: 79.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Biomedical hydrogels as sole repair matrices or combined with pre-seeded cells and bioactive growth factors are extensively applied in tissue engineering and regenerative medicine. Hydrogels normally provide three dimensional structures for cell adhesion and proliferation or the controlled release of the loading of drugs or proteins. Various physiochemical properties of hydrogels endow them with distinct applications. In this review, we present the commonly used crosslinking method for hydrogel synthesis involving physical and chemical crosslinks and summarize their current progress and future perspectives.
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Affiliation(s)
- Weikang Hu
- Advanced Biomaterials and Tissue Engineering Center, Huazhong University of Science and Technology, Wuhan 430074, P. R. China.
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34
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Thangavel N, Jayakumar I, Ravichandran M, Vaidyanathan Ganesan V, Nair BU. Photocrosslinking of collagen using Ru(II)-polypyridyl complex functionalized gold nanoparticles. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2019; 215:196-202. [PMID: 30826578 DOI: 10.1016/j.saa.2019.02.098] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/10/2018] [Revised: 01/31/2019] [Accepted: 02/22/2019] [Indexed: 06/09/2023]
Abstract
Collagen, an extracellular matrix protein, has been used for diverse biological applications due to its clinically safe in nature and for the development of various biomedical devices. As the ECM protein is prone to degradation process, it is necessary to stabilize the collagen. In the present study, we have carried out the stabilization of collagen using newly synthesized gold nanoparticles conjugated with Ru(II) complexes (NCs) possessing different ligand environment. From the DLS measurements, the size of the nanoparticles varies from 20 ± 6 nm. Fibrillation assay studies show that the NCs in the presence of photo-irradiation delays the fibrillation process significantly, while in the presence of persulfate, the acceleration in fibrillation process occurs. Circular dichroic and infra-red spectroscopic studies reveal that no alteration in triple helical structure observed for the photo-irradiated samples. SDS-PAGE analysis data reveal that the NCs facilitate the collagen crosslinks and hinders the enzymatic digestion, while neither Au-NPs nor Ru(II) complexes alone did not impart any stability to the collagen. The results from this study help us to understand the photochemical reaction of nanoparticle conjugate on collagen crosslinking and might be helpful in developing new photocatalyst for corneal application.
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Affiliation(s)
- Nandhini Thangavel
- Inorganic and Physical Chemistry Laboratory, CSIR-Central Leather Research Institute, Adyar, Chennai 600 020, India
| | - Indhumathi Jayakumar
- Advanced Materials Laboratory, CSIR-Central Leather Research Institute, Adyar, Chennai 600 020, India
| | - Mukund Ravichandran
- Advanced Materials Laboratory, CSIR-Central Leather Research Institute, Adyar, Chennai 600 020, India
| | | | - Balachandran Unni Nair
- Inorganic and Physical Chemistry Laboratory, CSIR-Central Leather Research Institute, Adyar, Chennai 600 020, India.
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35
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Keating M, Lim M, Hu Q, Botvinick E. Selective stiffening of fibrin hydrogels with micron resolution via photocrosslinking. Acta Biomater 2019; 87:88-96. [PMID: 30660778 PMCID: PMC6684034 DOI: 10.1016/j.actbio.2019.01.034] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2018] [Revised: 12/24/2018] [Accepted: 01/14/2019] [Indexed: 12/13/2022]
Abstract
Fibrin hydrogels are used as a model system for studying cell-ECM biophysical interactions. Bulk mechanical stiffness of these hydrogels has been correlated to mechanotransduction and downstream signaling. However, stiffness values proximal to cells can vary by orders of magnitude at the length scale of microns. Patterning of matrix stiffness at this spatial scale can be useful in studying such interactions. Here we present and evaluate a technique to selectively stiffen defined regions within a fibrin hydrogel. Laser scanning illumination activates ruthenium-catalyzed crosslinking of fibrin tyrosine residues, resulting in tunable stiffness changes spanning distances as small as a few microns and a localized compaction of the material. As probed by active microrheology, stiffness increases by as much as 25X, similar to previously observed stiffness changes around single cells in 3D culture. In summary, our method allows for selective modification of fibrin stiffness at the micron scale with the potential to create complex patterns, which could be valuable for the investigation of mechanotransduction in a biologically meaningful way. STATEMENT OF SIGNIFICANCE: Fibrin hydrogels are used as a naturally derived model to study interactions between cells and their surrounding extracellular matrix (ECM). ECM stiffness influences cell state. Cells in 3D culture considerably modify the stiffness of their pericellular space, which can be quite heterogeneous at the micron-scale. Here we present and evaluate a method to pattern stiffness within fibrin hydrogels using a laser scanning confocal microscope and selective photo crosslinking. We believe that this technique can aid future studies of cell-ECM interactions by enabling researchers to modify the pericellular distribution of stiffness.
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Affiliation(s)
- Mark Keating
- Department of Biomedical Engineering, University of California, Irvine, CA 92697-2730, United States
| | - Micah Lim
- Department of Biomedical Engineering, University of California, Irvine, CA 92697-2730, United States
| | - Qingda Hu
- Department of Biomedical Engineering, University of California, Irvine, CA 92697-2730, United States; Center for Complex Biological Systems, University of California, Irvine, CA 92697-2280, United States
| | - Elliot Botvinick
- Department of Biomedical Engineering, University of California, Irvine, CA 92697-2730, United States; Center for Complex Biological Systems, University of California, Irvine, CA 92697-2280, United States; Department of Surgery, University of California, Irvine, CA 92697-2730, United States.
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36
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Hsieh JY, Keating MT, Smith TD, Meli VS, Botvinick EL, Liu WF. Matrix crosslinking enhances macrophage adhesion, migration, and inflammatory activation. APL Bioeng 2019; 3:016103. [PMID: 31069336 PMCID: PMC6481736 DOI: 10.1063/1.5067301] [Citation(s) in RCA: 52] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2018] [Accepted: 03/05/2019] [Indexed: 12/13/2022] Open
Abstract
Macrophages are versatile cells of the innate immune system that can adopt a variety of functional phenotypes depending on signals in their environment. In previous work, we found that culture of macrophages on fibrin, the provisional extracellular matrix protein, inhibits their inflammatory activation when compared to cells cultured on polystyrene surfaces. Here, we sought to investigate the role of matrix stiffness in the regulation of macrophage activity by manipulating the mechanical properties of fibrin. We utilize a photo-initiated crosslinking method to introduce dityrosine crosslinks to a fibrin gel and confirm an increase in gel stiffness through active microrheology. We observe that matrix crosslinking elicits distinct changes in macrophage morphology, integrin expression, migration, and inflammatory activation. Macrophages cultured on a stiffer substrate exhibit greater cell spreading and expression of αM integrin. Furthermore, macrophages cultured on crosslinked fibrin exhibit increased motility. Finally, culture of macrophages on photo-crosslinked fibrin enhances their inflammatory activation compared to unmodified fibrin, suggesting that matrix crosslinking regulates the functional activation of macrophages. These findings provide insight into how the physical properties of the extracellular matrix might control macrophage behavior during inflammation and wound healing.
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Affiliation(s)
- Jessica Y Hsieh
- Department of Biomedical Engineering and The Edwards Lifesciences Center for Advanced Cardiovascular Technology, University of California Irvine, Irvine, California 92697, USA
| | - Mark T Keating
- Department of Biomedical Engineering and The Edwards Lifesciences Center for Advanced Cardiovascular Technology, University of California Irvine, Irvine, California 92697, USA
| | - Tim D Smith
- Department of Biomedical Engineering and The Edwards Lifesciences Center for Advanced Cardiovascular Technology, University of California Irvine, Irvine, California 92697, USA
| | - Vijaykumar S Meli
- Department of Biomedical Engineering and The Edwards Lifesciences Center for Advanced Cardiovascular Technology, University of California Irvine, Irvine, California 92697, USA
| | - Elliot L Botvinick
- Department of Biomedical Engineering and The Edwards Lifesciences Center for Advanced Cardiovascular Technology, University of California Irvine, Irvine, California 92697, USA
| | - Wendy F Liu
- Department of Biomedical Engineering and The Edwards Lifesciences Center for Advanced Cardiovascular Technology, University of California Irvine, Irvine, California 92697, USA
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37
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J. B, Chanda K, M.M. B. Revisiting the insights and applications of protein engineered hydrogels. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 95:312-327. [DOI: 10.1016/j.msec.2018.11.002] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2017] [Revised: 09/15/2018] [Accepted: 11/01/2018] [Indexed: 12/19/2022]
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38
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Sakai S, Kamei H, Mori T, Hotta T, Ohi H, Nakahata M, Taya M. Visible Light-Induced Hydrogelation of an Alginate Derivative and Application to Stereolithographic Bioprinting Using a Visible Light Projector and Acid Red. Biomacromolecules 2018; 19:672-679. [PMID: 29393630 DOI: 10.1021/acs.biomac.7b01827] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Visible light-induced hydrogelation is attractive for various biomedical applications. In this study, hydrogels of alginate with phenolic hydroxyl groups (Alg-Ph) were obtained by irradiating a solution containing the polymer, ruthenium II trisbipyridyl chloride ([Ru(bpy)3]2+) and sodium persulfate (SPS), with visible light. The hydrogelation kinetics and the mechanical properties of the resultant hydrogels were tunable by controlling the intensity of the light and the concentrations of [Ru(bpy)3]2+ and SPS. With appropriate concentrations of [Ru(bpy)3]2+ and SPS, the hydrogel could be obtained following approximately 10 s of irradiation using a normal desktop lamp. The hydrogelation process and the resultant hydrogel were cytocompatible; mouse fibroblast cells enclosed in the Alg-Ph hydrogel maintained more than 90% viability for 1 week. The solution containing Alg-Ph, [Ru(bpy)3]2+ and SPS was useful as a bioink for stereolithographic bioprinting. Cell-laden hydrogel constructs could be printed using the bioprinting system equipped with a visible light projector without a significant decrease in cell viability in the presence of photoabsorbent Acid Red 18. The hydrogel construct including a perfusable helical lumen of 1 mm in diameter could be fabricated using the printing system. These results demonstrate the significant potential of this visible light-induced hydrogelation system and the stereolithographic bioprinting using the hydrogelation system for tissue engineering and regenerative medicine.
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Affiliation(s)
| | | | - Toko Mori
- Shitennoji Senior High School , 1-11-73 Shitennoji, Tennoji, Osaka 543-0051, Japan.,JST Global Science Campus , 4-1-8 Honmachi, Kawaguchi, Saitama 332-0013, Japan
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39
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Sakai S, Ohi H, Hotta T, Kamei H, Taya M. Differentiation potential of human adipose stem cells bioprinted with hyaluronic acid/gelatin-based bioink through microextrusion and visible light-initiated crosslinking. Biopolymers 2017; 109. [PMID: 29139103 DOI: 10.1002/bip.23080] [Citation(s) in RCA: 59] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2017] [Accepted: 10/20/2017] [Indexed: 12/20/2022]
Abstract
Bioprinting has a great potential to fabricate three-dimensional (3D) functional tissues and organs. In particular, the technique enables fabrication of 3D constructs containing stem cells while maintaining cell proliferation and differentiation abilities, which is believed to be promising in the fields of tissue engineering and regenerative medicine. We aimed to demonstrate the utility of the bioprinting technique to create hydrogel constructs consisting of hyaluronic acid (HA) and gelatin derivatives through irradiation by visible light to fabricate 3D constructs containing human adipose stem cells (hADSCs). The hydrogel was obtained from a solution of HA and gelatin derivatives possessing phenolic hydroxyl moieties in the presence of ruthenium(II) tris-bipyridyl dication and sodium ammonium persulfate. hADSCs enclosed in the bioprinted hydrogel construct elongated and proliferated in the hydrogel. In addition, their differentiation potential was confirmed by examining the expression of pluripotency marker genes and cell surface marker proteins, and differentiation to adipocytes in adipogenic differentiation medium. Our results demonstrate the great potential of the bioprinting method and the resultant hADSC-laden HA/gelatin constructs for applications in tissue engineering and regenerative medicine.
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Affiliation(s)
- Shinji Sakai
- Department of Materials Science and Engineering, Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyama, Toyonaka, Osaka, 560-8531, Japan
| | - Hiromi Ohi
- Department of Materials Science and Engineering, Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyama, Toyonaka, Osaka, 560-8531, Japan
| | - Tomoki Hotta
- Department of Materials Science and Engineering, Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyama, Toyonaka, Osaka, 560-8531, Japan
| | - Hidenori Kamei
- Department of Materials Science and Engineering, Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyama, Toyonaka, Osaka, 560-8531, Japan
| | - Masahito Taya
- Department of Materials Science and Engineering, Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyama, Toyonaka, Osaka, 560-8531, Japan
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Huang SC, Qian ZG, Dan AH, Hu X, Zhou ML, Xia XX. Rational Design and Hierarchical Assembly of a Genetically Engineered Resilin–Silk Copolymer Results in Stiff Hydrogels. ACS Biomater Sci Eng 2017; 3:1576-1585. [DOI: 10.1021/acsbiomaterials.7b00353] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Sheng-Chen Huang
- State Key Laboratory of Microbial Metabolism, Joint International Research Laboratory of Metabolic & Developmental Sciences, and School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, People’s Republic of China
| | - Zhi-Gang Qian
- State Key Laboratory of Microbial Metabolism, Joint International Research Laboratory of Metabolic & Developmental Sciences, and School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, People’s Republic of China
| | - Ao-Huan Dan
- State Key Laboratory of Microbial Metabolism, Joint International Research Laboratory of Metabolic & Developmental Sciences, and School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, People’s Republic of China
| | - Xiao Hu
- State Key Laboratory of Microbial Metabolism, Joint International Research Laboratory of Metabolic & Developmental Sciences, and School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, People’s Republic of China
| | - Ming-Liang Zhou
- State Key Laboratory of Microbial Metabolism, Joint International Research Laboratory of Metabolic & Developmental Sciences, and School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, People’s Republic of China
| | - Xiao-Xia Xia
- State Key Laboratory of Microbial Metabolism, Joint International Research Laboratory of Metabolic & Developmental Sciences, and School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, People’s Republic of China
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41
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Ping Y, Ding D, Ramos RANS, Mohanram H, Deepankumar K, Gao J, Tang G, Miserez A. Supramolecular β-Sheets Stabilized Protein Nanocarriers for Drug Delivery and Gene Transfection. ACS NANO 2017; 11:4528-4541. [PMID: 28423276 DOI: 10.1021/acsnano.6b08393] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Suckerin proteins, recently discovered in the sucker ring teeth of squids, represent a family of promising structural biomacromolecules that can form supramolecular networks stabilized by nanoconfined β-sheets. Exploiting this feature as well as their specific amino acid composition, we demonstrate that artificial suckerin-19 (S-19) can be engineered into nanocarriers for efficient drug delivery and gene transfection in vitro and in vivo. First, we demonstrate that S-19 self-assembles into β-sheet stabilized nanoparticles with controlled particle sizes of 100-200 nm that are able to encapsulate hydrophobic drugs for pH-dependent release in vitro, and that can effectively inhibit tumor growth in vivo. We also show that S-19 can complex and stabilize plasmid DNA, with the complexes stabilized by hydrophobic interactions of the β-sheet domains as opposed to electrostatic interactions commonly achieved with cationic polymers, thus lowering cytotoxicity. The elevated Histidine content of S-19 appears critical to trigger endosomal escape by the proton sponge effect, thereby ensuring efficient gene transfection both in vitro and in vivo. Our study demonstrates that S-19 represents a promising functional protein nanocarrier that could be used for various drug and gene delivery applications.
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Affiliation(s)
- Yuan Ping
- School of Materials Science and Engineering, Nanyang Technological University , 50 Nanyang Avenue, 639798 Singapore
- Center for Biomimetic Sensor Science, Nanyang Technological University , RTP/XF-06, 50 Nanyang Avenue, 639798 Singapore
| | - Dawei Ding
- School of Materials Science and Engineering, Nanyang Technological University , 50 Nanyang Avenue, 639798 Singapore
- Center for Biomimetic Sensor Science, Nanyang Technological University , RTP/XF-06, 50 Nanyang Avenue, 639798 Singapore
| | - Ricardo A N S Ramos
- School of Materials Science and Engineering, Nanyang Technological University , 50 Nanyang Avenue, 639798 Singapore
- Center for Biomimetic Sensor Science, Nanyang Technological University , RTP/XF-06, 50 Nanyang Avenue, 639798 Singapore
| | - Harini Mohanram
- School of Materials Science and Engineering, Nanyang Technological University , 50 Nanyang Avenue, 639798 Singapore
- Center for Biomimetic Sensor Science, Nanyang Technological University , RTP/XF-06, 50 Nanyang Avenue, 639798 Singapore
| | - Kanagavel Deepankumar
- School of Materials Science and Engineering, Nanyang Technological University , 50 Nanyang Avenue, 639798 Singapore
- Center for Biomimetic Sensor Science, Nanyang Technological University , RTP/XF-06, 50 Nanyang Avenue, 639798 Singapore
| | - Jianqing Gao
- College of Pharmaceutical Sciences, Zhejiang University , 866 Yuhangtang Road, Hangzhou 310058, China
| | - Guping Tang
- Institute of Chemical Biology and Pharmaceutical Chemistry, Department of Chemistry, Zhejiang University , 148 Tianmushan Road, Hangzhou 310028, China
| | - Ali Miserez
- School of Materials Science and Engineering, Nanyang Technological University , 50 Nanyang Avenue, 639798 Singapore
- Center for Biomimetic Sensor Science, Nanyang Technological University , RTP/XF-06, 50 Nanyang Avenue, 639798 Singapore
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42
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Wang K, Wang W, Wu X, Xiao J, Liu Y, Liu A. Effect of photochemical UV/riboflavin-mediated cross-links on different properties of fish gelatin films. J FOOD PROCESS ENG 2017. [DOI: 10.1111/jfpe.12536] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Kun Wang
- Key Laboratory of Food Nutrition and Safety, Ministry of Education, College of Food Engineering and Biotechnology; Tianjin University of Science and Technology; Tianjin 300457 China
| | - Wenhang Wang
- Key Laboratory of Food Nutrition and Safety, Ministry of Education, College of Food Engineering and Biotechnology; Tianjin University of Science and Technology; Tianjin 300457 China
| | - Xiaomeng Wu
- Key Laboratory of Food Nutrition and Safety, Ministry of Education, College of Food Engineering and Biotechnology; Tianjin University of Science and Technology; Tianjin 300457 China
| | - Jingdong Xiao
- Key Laboratory of Food Nutrition and Safety, Ministry of Education, College of Food Engineering and Biotechnology; Tianjin University of Science and Technology; Tianjin 300457 China
| | - Yaowei Liu
- Key Laboratory of Food Nutrition and Safety, Ministry of Education, College of Food Engineering and Biotechnology; Tianjin University of Science and Technology; Tianjin 300457 China
| | - Anjun Liu
- Key Laboratory of Food Nutrition and Safety, Ministry of Education, College of Food Engineering and Biotechnology; Tianjin University of Science and Technology; Tianjin 300457 China
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43
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Hiew SH, Miserez A. Squid Sucker Ring Teeth: Multiscale Structure-Property Relationships, Sequencing, and Protein Engineering of a Thermoplastic Biopolymer. ACS Biomater Sci Eng 2016; 3:680-693. [PMID: 33440495 DOI: 10.1021/acsbiomaterials.6b00284] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
The arms and tentacles of Decapodiform cephalopods (squids and cuttlefish) are lined with suckers, each of which contains embedded sucker ring teeth (SRT), which are used by the animal for prey capture and handling. SRT exhibit intriguing physicochemical and thermomechanical characteristics that have so far not been observed in other protein-based biomaterials. Notably, despite their comparatively high mechanical properties, SRT are almost fully soluble in chaotropic solvents and can be readily reconstituted after solvent evaporation into three-dimensional structures. SRT also exhibit thermoplastic characteristics: they can be melted and reshaped multiple times with no-or only minimal-loss of mechanical performance postprocessing. Intrigued by these unusual material characteristics, in recent years, we have conducted in-depth fundamental studies to unveil structure/property relationships of SRT from the molecular (genetic) level to the macroscopic scale. These investigations have demonstrated that SRT are entirely assembled from a protein family called "suckerins" that self-assemble into semicrystalline polymer infinite networks. Suckerins are block copolymers at the molecular level, whose closest analogy appears to be silk fibroins, although significant differences exist between these two protein families. Parallel to these studies, there have been efforts to mimic and engineer suckerins by protein engineering and to demonstrate potential applications through proof-of-concept studies, with a focus on the biomedical field. Both fundamental aspects and emerging applications are presented in this short review. Given the rather unusual source of this model structure, we start by a brief historical account of SRT and suckerin discovery.
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Affiliation(s)
- Shu Hui Hiew
- School of Material Science and Engineering and ‡Center for Biomimetic Sensor Science, Nanyang Technological University (NTU), 50 Nanyang Drive, Singapore 639798
| | - Ali Miserez
- School of Material Science and Engineering and Center for Biomimetic Sensor Science, Nanyang Technological University (NTU), 50 Nanyang Drive, Singapore 639798
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44
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Li H, Kong N, Laver B, Liu J. Hydrogels Constructed from Engineered Proteins. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2016; 12:973-987. [PMID: 26707834 DOI: 10.1002/smll.201502429] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/13/2015] [Revised: 09/23/2015] [Indexed: 06/05/2023]
Abstract
Due to their various potential biomedical applications, hydrogels based on engineered proteins have attracted considerable interest. Benefitting from significant progress in recombinant DNA technology and protein engineering/design techniques, the field of protein hydrogels has made amazing progress. The latest progress of hydrogels constructed from engineered recombinant proteins are presented, mainly focused on biorecognition-driven physical hydrogels as well as chemically crosslinked hydrogels. The various bio-recognition based physical crosslinking strategies are discussed, as well as chemical crosslinking chemistries used to engineer protein hydrogels, and protein hydrogels' various biomedical applications. The future perspectives of this fast evolving field of biomaterials are also discussed.
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Affiliation(s)
- Hongbin Li
- Department of Chemistry, University of British Columbia, Vancouver, BC, V6T 1Z1, Canada
| | - Na Kong
- Department of Chemistry, University of British Columbia, Vancouver, BC, V6T 1Z1, Canada
| | - Bryce Laver
- Department of Chemistry, University of British Columbia, Vancouver, BC, V6T 1Z1, Canada
| | - Junqiu Liu
- Key Lab for Supramolecular Structure and Materials, Jilin University, Changchun, Jilin Province, 130012, P. R. China
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Schneider-Barthold C, Baganz S, Wilhelmi M, Scheper T, Pepelanova I. Hydrogels based on collagen and fibrin – frontiers and applications. ACTA ACUST UNITED AC 2016. [DOI: 10.1515/bnm-2015-0025] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
AbstractHydrogels are a versatile tool for a multitude of applications in biomedical research and clinical practice. Especially collagen and fibrin hydrogels are distinguished by their excellent biocompatibility, natural capacity for cell adhesion and low immunogenicity. In many ways, collagen and fibrin represent an ideal biomaterial, as they can serve as a scaffold for tissue regeneration and promote the migration of cells, as well as the ingrowth of tissues. On the other hand, pure collagen and fibrin materials are marked by poor mechanical properties and rapid degradation, which limits their use in practice. This paper will review methods of modification of natural collagen and fibrin materials to next-generation materials with enhanced stability. A special focus is placed on biomedical products from fibrin and collagen already on the market. In addition, recent research on the in vivo applications of collagen and fibrin-based materials will be showcased.
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Ding D, Guerette PA, Fu J, Zhang L, Irvine SA, Miserez A. From Soft Self-Healing Gels to Stiff Films in Suckerin-Based Materials Through Modulation of Crosslink Density and β-Sheet Content. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2015; 27:3953-3961. [PMID: 26011516 DOI: 10.1002/adma.201500280] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2015] [Revised: 04/22/2015] [Indexed: 06/04/2023]
Abstract
Suckerins are block-copolymer-like structural proteins constituting the building blocks of the strong squid sucker-ring teeth. Here, recombinant suckerin-19 is processed into biomaterials spanning a wide range of elasticity, from very soft hydrogels to stiff films with elastic modulus in the gigapascal range. The elasticity is controlled by the interplay between the β-sheet content and induced di-tyrosine crosslinking.
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Affiliation(s)
- Dawei Ding
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
- Center for Biomimetic Sensor Science (CBSS), Research Technological Plaza, Nanyang Technological University, 50 Nanyang Drive, Singapore, 637553, Singapore
| | - Paul A Guerette
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
- Center for Biomimetic Sensor Science (CBSS), Research Technological Plaza, Nanyang Technological University, 50 Nanyang Drive, Singapore, 637553, Singapore
| | - Jing Fu
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
- Center for Biomimetic Sensor Science (CBSS), Research Technological Plaza, Nanyang Technological University, 50 Nanyang Drive, Singapore, 637553, Singapore
| | - Lihong Zhang
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
- Center for Biomimetic Sensor Science (CBSS), Research Technological Plaza, Nanyang Technological University, 50 Nanyang Drive, Singapore, 637553, Singapore
| | - Scott A Irvine
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
| | - Ali Miserez
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
- Center for Biomimetic Sensor Science (CBSS), Research Technological Plaza, Nanyang Technological University, 50 Nanyang Drive, Singapore, 637553, Singapore
- School of Biological Sciences, Nanyang Technological University, 60 Nanyang Drive, Singapore, 637551, Singapore
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48
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Czarnecki JS, Lafdi K, Tsonis PA. The future of carbon-based scaffolds in foot and ankle surgery. Clin Podiatr Med Surg 2015; 32:73-91. [PMID: 25440419 DOI: 10.1016/j.cpm.2014.09.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Carbon may represent an alternative material suitable for future development as a soft-tissue substitute that potentially optimizes the biological and mechanical properties required for a graft product used in surgery. In addition, other modes of characterization such as 3-dimensional computational modeling may offer an insight into material performance in a biological environment. Further investigation is required to characterize and model the relationships between biological, mechanical, and design properties of this material to maximize its potential as a biomechanical scaffold and vehicle for delivering biologics that promote tissue repair and regeneration.
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Affiliation(s)
- Jarema S Czarnecki
- Department of Mechanical Engineering, University of Dayton, 300 College Park, Dayton, OH 45469, USA.
| | - Khalid Lafdi
- Chemical and Materials Engineering, University of Dayton, 300 College Park, Dayton, OH 45469-0240, USA
| | - Panagiotis A Tsonis
- Biology, Center for Tissue Regeneration and Engineering (TREND), University of Dayton, 300 College Park, Dayton, OH 45469, USA
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49
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Fang J, Mehlich A, Koga N, Huang J, Koga R, Gao X, Hu C, Jin C, Rief M, Kast J, Baker D, Li H. Forced protein unfolding leads to highly elastic and tough protein hydrogels. Nat Commun 2014; 4:2974. [PMID: 24352111 PMCID: PMC3983047 DOI: 10.1038/ncomms3974] [Citation(s) in RCA: 111] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2013] [Accepted: 11/21/2013] [Indexed: 12/15/2022] Open
Abstract
Protein-based hydrogels usually do not exhibit high stretchability or toughness, significantly limiting the scope of their potential biomedical applications. Here we report the engineering of a chemically cross-linked, highly elastic and tough protein hydrogel using a mechanically extremely labile, de novo-designed protein that assumes the classical ferredoxin-like fold structure. Due to the low mechanical stability of the ferredoxin-like fold structure, swelling of hydrogels causes a significant fraction of the folded domains to unfold. Subsequent collapse and aggregation of unfolded ferredoxin-like domains leads to intertwining of physically and chemically cross-linked networks, entailing hydrogels with unusual physical and mechanical properties: a negative swelling ratio, high stretchability and toughness. These hydrogels can withstand an average strain of 450% before breaking and show massive energy dissipation. Upon relaxation, refolding of the ferredoxin-like domains enables the hydrogel to recover its massive hysteresis. This novel biomaterial may expand the scope of hydrogel applications in tissue engineering.
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Affiliation(s)
- Jie Fang
- Department of Chemistry, University of British Columbia, Vancouver, British Columbia, Canada V6T 1Z1
| | - Alexander Mehlich
- Physik Department E22, Technische Universität München, James-Franck-Strasse, Garching 85748, Germany
| | - Nobuyasu Koga
- Department of Biochemistry and Howard Hughes Medical Institute, University of Washington, Seattle, Washington 98195, USA
| | - Jiqing Huang
- Department of Chemistry, University of British Columbia, Vancouver, British Columbia, Canada V6T 1Z1
| | - Rie Koga
- Department of Biochemistry and Howard Hughes Medical Institute, University of Washington, Seattle, Washington 98195, USA
| | - Xiaoye Gao
- Department of Chemistry, University of British Columbia, Vancouver, British Columbia, Canada V6T 1Z1
| | - Chunguang Hu
- State Key Laboratory of Precision Measurements Technology and Instruments, School of Precision Instrument and Opto-Electronics Engineering, Tianjin University, Tianjin 30072, China
| | - Chi Jin
- Department of Chemistry, University of British Columbia, Vancouver, British Columbia, Canada V6T 1Z1
| | - Matthias Rief
- Physik Department E22, Technische Universität München, James-Franck-Strasse, Garching 85748, Germany
| | - Juergen Kast
- Department of Chemistry, University of British Columbia, Vancouver, British Columbia, Canada V6T 1Z1
| | - David Baker
- Department of Biochemistry and Howard Hughes Medical Institute, University of Washington, Seattle, Washington 98195, USA
| | - Hongbin Li
- 1] Department of Chemistry, University of British Columbia, Vancouver, British Columbia, Canada V6T 1Z1 [2] State Key Laboratory of Precision Measurements Technology and Instruments, School of Precision Instrument and Opto-Electronics Engineering, Tianjin University, Tianjin 30072, China
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50
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Xie X, Zhang C, Tuan RS. Biology of platelet-rich plasma and its clinical application in cartilage repair. Arthritis Res Ther 2014; 16:204. [PMID: 25164150 PMCID: PMC3978832 DOI: 10.1186/ar4493] [Citation(s) in RCA: 173] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Platelet-rich plasma (PRP) is an autologous concentrated cocktail of growth factors and inflammatory mediators, and has been considered to be potentially effective for cartilage repair. In addition, the fibrinogen in PRP may be activated to form a fibrin matrix to fill cartilage lesions, fulfilling the initial requirements of physiological wound healing. The anabolic, anti-inflammatory and scaffolding effects of PRP based on laboratory investigations, animal studies, and clinical trials are reviewed here. In vitro, PRP is found to stimulate cell proliferation and cartilaginous matrix production by chondrocytes and adult mesenchymal stem cells (MSCs), enhance matrix secretion by synoviocytes, mitigate IL-1β-induced inflammation, and provide a favorable substrate for MSCs. In preclinical studies, PRP has been used either as a gel to fill cartilage defects with variable results, or to slow the progression of arthritis in animal models with positive outcomes. Findings from current clinical trials suggest that PRP may have the potential to fill cartilage defects to enhance cartilage repair, attenuate symptoms of osteoarthritis and improve joint function, with an acceptable safety profile. Although current evidence appears to favor PRP over hyaluronan for the treatment of osteoarthritis, the efficacy of PRP therapy remains unpredictable owing to the highly heterogeneous nature of reported studies and the variable composition of the PRP preparations. Future studies are critical to elucidate the functional activity of individual PRP components in modulating specific pathogenic mechanisms.
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