101
|
Yang H, Qin X, Wang H, Zhao X, Liu Y, Wo HT, Liu C, Nishiga M, Chen H, Ge J, Sayed N, Abilez OJ, Ding D, Heilshorn SC, Li K. An in Vivo miRNA Delivery System for Restoring Infarcted Myocardium. ACS NANO 2019; 13:9880-9894. [PMID: 31149806 PMCID: PMC7930012 DOI: 10.1021/acsnano.9b03343] [Citation(s) in RCA: 80] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
A major challenge in myocardial infarction (MI)-related heart failure treatment using microRNA is the efficient and sustainable delivery of miRNAs into myocardium to achieve functional improvement through stimulation of intrinsic myocardial restoration. In this study, we established an in vivo delivery system using polymeric nanoparticles to carry miRNA (miNPs) for localized delivery within a shear-thinning injectable hydrogel. The miNPs triggered proliferation of human embryonic stem cell-derived cardiomyocytes and endothelial cells (hESC-CMs and hESC-ECs) and promoted angiogenesis in hypoxic conditions, showing significantly lower cytotoxicity than Lipofectamine. Furthermore, one injected dose of hydrogel/miNP in MI rats demonstrated significantly improved cardiac functions: increased ejection fraction from 45% to 64%, reduced scar size from 20% to 10%, and doubled capillary density in the border zone compared to the control group at 4 weeks. As such, our results indicate that this injectable hydrogel/miNP composite can deliver miRNA to restore injured myocardium efficiently and safely.
Collapse
Affiliation(s)
- Huaxiao Yang
- Stanford Cardiovascular Institute, Stanford University School of Medicine, Stanford, California 94305, United States
- Corresponding Authors.,
| | - Xulei Qin
- Stanford Cardiovascular Institute, Stanford University School of Medicine, Stanford, California 94305, United States
| | - Huiyuan Wang
- Department of Materials Science and Engineering, Stanford University, Stanford, California 94305, United States
| | - Xin Zhao
- Stanford Cardiovascular Institute, Stanford University School of Medicine, Stanford, California 94305, United States
| | - Yonggang Liu
- Stanford Cardiovascular Institute, Stanford University School of Medicine, Stanford, California 94305, United States
| | - Hung-Ta Wo
- Stanford Cardiovascular Institute, Stanford University School of Medicine, Stanford, California 94305, United States
| | - Chun Liu
- Stanford Cardiovascular Institute, Stanford University School of Medicine, Stanford, California 94305, United States
| | - Masataka Nishiga
- Stanford Cardiovascular Institute, Stanford University School of Medicine, Stanford, California 94305, United States
| | - Haodong Chen
- Stanford Cardiovascular Institute, Stanford University School of Medicine, Stanford, California 94305, United States
| | - Jing Ge
- Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen, Guangdong 518055, China
| | - Nazish Sayed
- Stanford Cardiovascular Institute, Stanford University School of Medicine, Stanford, California 94305, United States
| | - Oscar J. Abilez
- Stanford Cardiovascular Institute, Stanford University School of Medicine, Stanford, California 94305, United States
| | - Dan Ding
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, Nankai University, Tianjin 300071, China
| | - Sarah C. Heilshorn
- Department of Materials Science and Engineering, Stanford University, Stanford, California 94305, United States
| | - Kai Li
- Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen, Guangdong 518055, China
- Department of Radiology, Stanford University School of Medicine, Stanford, California 94305, United States
- Corresponding Authors.,
| |
Collapse
|
102
|
Xu J, Liu Y, Hsu SH. Hydrogels Based on Schiff Base Linkages for Biomedical Applications. Molecules 2019; 24:E3005. [PMID: 31430954 PMCID: PMC6720009 DOI: 10.3390/molecules24163005] [Citation(s) in RCA: 217] [Impact Index Per Article: 43.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2019] [Revised: 08/08/2019] [Accepted: 08/13/2019] [Indexed: 01/06/2023] Open
Abstract
Schiff base, an important family of reaction in click chemistry, has received significant attention in the formation of self-healing hydrogels in recent years. Schiff base reversibly reacts even in mild conditions, which allows hydrogels with self-healing ability to recover their structures and functions after damages. Moreover, pH-sensitivity of the Schiff base offers the hydrogels response to biologically relevant stimuli. Different types of Schiff base can provide the hydrogels with tunable mechanical properties and chemical stabilities. In this review, we summarized the design and preparation of hydrogels based on various types of Schiff base linkages, as well as the biomedical applications of hydrogels in drug delivery, tissue regeneration, wound healing, tissue adhesives, bioprinting, and biosensors.
Collapse
Affiliation(s)
- Junpeng Xu
- Institute of Polymer Science and Engineering, National Taiwan University, No. 1, Sec. 4 Roosevelt Road, Taipei 10617, Taiwan
| | - Yi Liu
- Institute of Polymer Science and Engineering, National Taiwan University, No. 1, Sec. 4 Roosevelt Road, Taipei 10617, Taiwan
| | - Shan-Hui Hsu
- Institute of Polymer Science and Engineering, National Taiwan University, No. 1, Sec. 4 Roosevelt Road, Taipei 10617, Taiwan.
- Institute of Cellular and System Medicine, National Health Research Institutes, No. 35 Keyan Road, Miaoli 35053, Taiwan.
| |
Collapse
|
103
|
Lin Z, Wu T, Wang W, Li B, Wang M, Chen L, Xia H, Zhang T. Biofunctions of antimicrobial peptide-conjugated alginate/hyaluronic acid/collagen wound dressings promote wound healing of a mixed-bacteria-infected wound. Int J Biol Macromol 2019; 140:330-342. [PMID: 31421174 DOI: 10.1016/j.ijbiomac.2019.08.087] [Citation(s) in RCA: 103] [Impact Index Per Article: 20.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2019] [Revised: 08/01/2019] [Accepted: 08/09/2019] [Indexed: 12/22/2022]
Abstract
The increase in severe infections caused by antibiotic drug resistance and the decrease in the number of new antibacterial drugs approved for use in the last few decades are driving the need for the development of new antimicrobial strategies. Antimicrobial peptides (AMPs) are a potential new class of antimicrobial drugs that are expected to solve the problem of global antibiotic drug resistance. Herein, the AMP Tet213 was immobilised onto the substrates of alginate (ALG), hyaluronic acid (HA), and collagen (COL) to form the ALG/HA/COL-AMP wound dressing. This wound dressing exhibited a high degree of swelling and the appropriate porosity, mechanical properties, and biodegradability. The Tet213-immobilised ALG/HA/COL dressings exhibited antimicrobial activity against three pathogenic bacterial strains (Gram-negative E. coli and Gram-positive MRSA and S. aureus) and facilitated the proliferation of NIH 3T3 fibroblast cells. In addition, the ALG/HA/COL-AMP antimicrobial dressings promoted wound healing, re-epithelialisation, collagen deposition, and angiogenesis. Moreover, the wound-healing effects of ALG/HA/COL-AMP surpassed the gauze and ALG/HA/COL compared to commercially available silver-based dressings (Aguacel Ag). These results suggest that the Tet213-conjugated ALG/HA/COL wound dressing, with its multiple biological activities, is a promising wound-dressing material.
Collapse
Affiliation(s)
- Zefeng Lin
- Department of Orthopedics, General Hospital of Southern Theater Command of PLA, Guangzhou 510010, China; Guangdong Key Lab of Orthopedic Technology and Implant Materials, Guangzhou 510010, China
| | - Tingting Wu
- Institute of Orthopedic Diseases and Center for Joint Surgery and Sports Medicine, the First Affiliated Hospital, Jinan University, Guangzhou 510632, China
| | - Wanshun Wang
- Guangzhou University of Chinese Medicine, Guangzhou 510010, China
| | - Binglin Li
- The First School of Clinical Medicine, Southern Medical University, 510515, China
| | - Ming Wang
- The First School of Clinical Medicine, Southern Medical University, 510515, China
| | - Lingling Chen
- Department of Orthopedics, General Hospital of Southern Theater Command of PLA, Guangzhou 510010, China; The First School of Clinical Medicine, Southern Medical University, 510515, China
| | - Hong Xia
- Department of Orthopedics, General Hospital of Southern Theater Command of PLA, Guangzhou 510010, China; Guangdong Key Lab of Orthopedic Technology and Implant Materials, Guangzhou 510010, China.
| | - Tao Zhang
- Department of Orthopedics, General Hospital of Southern Theater Command of PLA, Guangzhou 510010, China; Guangdong Key Lab of Orthopedic Technology and Implant Materials, Guangzhou 510010, China.
| |
Collapse
|
104
|
Kouhi A, Yao Z, Zheng L, Li Z, Hu P, Epstein AL, MacKay JA. Generation of a Monoclonal Antibody to Detect Elastin-like Polypeptides. Biomacromolecules 2019; 20:2942-2952. [PMID: 31276401 DOI: 10.1021/acs.biomac.9b00503] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
The identification and use of antibodies dominate the biologic, clinical diagnostic, and therapeutic landscapes. In particular, antibodies have become essential tools in a variety of protein analytical experiments and to study the disposition of biologic therapeutics. One emerging class of peptide biologics is known as the elastin-like polypeptides (ELPs), which are repetitive protein polymers inspired by human tropoelastin. A major limitation in the clinical translation of ELP biologics has been a lack of a monoclonal antibody (mAb) to characterize their identity during expression. To facilitate these studies, we successfully generated a new mAb that is specific toward ELPs and ELP fusion proteins. A purified antibody was evaluated in an ELISA, western blotting, and immunofluorescence assay. The optimal anti-ELP mAb proved to be highly reactive and specific toward ELPs. Moreover, they were able to detect ELPs with a variety of aliphatic guest residues. ELPs phase-separate in response to heating; furthermore, when incubated at a great excess of ELPs, the anti-ELP mAb partially blocks phase separation. These findings are direct evidence that novel murine mAbs can be raised against purified ELPs. This new reagent will enable purification, experimental detection, and characterization of these biopolymers.
Collapse
|
105
|
Ibáñez-Fonseca A, Flora T, Acosta S, Rodríguez-Cabello JC. Trends in the design and use of elastin-like recombinamers as biomaterials. Matrix Biol 2019; 84:111-126. [PMID: 31288085 DOI: 10.1016/j.matbio.2019.07.003] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2019] [Revised: 06/23/2019] [Accepted: 07/05/2019] [Indexed: 12/16/2022]
Abstract
Elastin-like recombinamers (ELRs), which derive from one of the repetitive domains found in natural elastin, have been intensively studied in the last few years from several points of view. In this mini review, we discuss all the recent works related to the investigation of ELRs, starting with those that define these polypeptides as model intrinsically disordered proteins or regions (IDPs or IDRs) and its relevance for some biomedical applications. Furthermore, we summarize the current knowledge on the development of drug, vaccine and gene delivery systems based on ELRs, while also emphasizing the use of ELR-based hydrogels in tissue engineering and regenerative medicine (TERM). Finally, we show different studies that explore applications in other fields, and several examples that describe biomaterial blends in which ELRs have a key role. This review aims to give an overview of the recent advances regarding ELRs and to encourage further investigation of their properties and applications.
Collapse
Affiliation(s)
- Arturo Ibáñez-Fonseca
- BIOFORGE Lab, CIBER-BBN, University of Valladolid, Paseo de Belén 19, 47011 Valladolid, Spain
| | - Tatjana Flora
- BIOFORGE Lab, CIBER-BBN, University of Valladolid, Paseo de Belén 19, 47011 Valladolid, Spain
| | - Sergio Acosta
- BIOFORGE Lab, CIBER-BBN, University of Valladolid, Paseo de Belén 19, 47011 Valladolid, Spain
| | | |
Collapse
|
106
|
Farokhi M, Mottaghitalab F, Fatahi Y, Saeb MR, Zarrintaj P, Kundu SC, Khademhosseini A. Silk fibroin scaffolds for common cartilage injuries: Possibilities for future clinical applications. Eur Polym J 2019. [DOI: 10.1016/j.eurpolymj.2019.03.035] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
|
107
|
Chondrogenesis of human mesenchymal stem cells by microRNA loaded triple polysaccharide nanoparticle system. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 102:756-763. [PMID: 31147048 DOI: 10.1016/j.msec.2019.05.006] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2019] [Revised: 04/29/2019] [Accepted: 05/03/2019] [Indexed: 01/15/2023]
Abstract
Degenerative cartilage is the pathology of severe depletion of extracellular matrix components in articular cartilage. In diseases like osteoarthritis, misregulation of microRNAs contributes the pathology and collectively leads to disruption of the homeostasis. In this study chondroitin sulfate/hyaluronic acid/chitosan nanoparticles were prepared and successfully characterized chemically and morphologically. Results demonstrated higher chondroitin sulfate amounts led smaller nanoparticles, but lower surface zeta potential due to high electronegativity. After optimization of chondroitin sulfate amounts regarding size and charge, nanoparticles were loaded with microRNA-149-5p, a therapeutic miRNA downregulated in osteoarthritis, and evaluated focusing on their loading efficiency, release behaviour, cytotoxicity and gene transfection efficiency in vitro. Results showed all nanoparticle formulations were non-toxic and promising gene delivery agents, due to increased levels of microRNA-149-5p and decreased mRNA levels of microRNA's target, FUT-1. Highest gene transfection efficiency was obtained with the nanoparticle formulation which had the highest chondroitin sulfate load and smallest size. In addition, owing to their high chondroitin sulfate cargo, all nanoparticles were reported to enhance chondrogenesis, which was demonstrated by gene expression analysis and sulfated glycosaminoglycan (sGAG) staining. The obtained data suggest that the delivery of microRNA-149-5p via polysaccharide based carriers could achieve collaborative impact in cartilage regeneration and have a potential to enhance osteoarthritis treatment.
Collapse
|
108
|
Bai Y, Li S, Li X, Han X, Li Y, Zhao J, Zhang J, Hou X, Yuan X. An injectable robust denatured albumin hydrogel formed via double equilibrium reactions. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2019; 30:662-678. [DOI: 10.1080/09205063.2019.1600821] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Yu Bai
- Tianjin Key Laboratory of Composite and Functional Materials, Tianjin University, Tianjin, China
- School of Materials Science and Engineering, Tianjin University, Tianjin, China
| | - Sidi Li
- Tianjin Key Laboratory of Composite and Functional Materials, Tianjin University, Tianjin, China
- School of Materials Science and Engineering, Tianjin University, Tianjin, China
| | - Xueping Li
- Tianjin Key Laboratory of Composite and Functional Materials, Tianjin University, Tianjin, China
- School of Materials Science and Engineering, Tianjin University, Tianjin, China
| | - Xing Han
- Tianjin Key Laboratory of Composite and Functional Materials, Tianjin University, Tianjin, China
- School of Materials Science and Engineering, Tianjin University, Tianjin, China
| | - Yang Li
- Tianjin Key Laboratory of Composite and Functional Materials, Tianjin University, Tianjin, China
- School of Materials Science and Engineering, Tianjin University, Tianjin, China
| | - Jin Zhao
- Tianjin Key Laboratory of Composite and Functional Materials, Tianjin University, Tianjin, China
- School of Materials Science and Engineering, Tianjin University, Tianjin, China
| | - Juntao Zhang
- First Teaching Hospital of Tianjin, University of Traditional Chinese Medicine, Tianjin, China
| | - Xin Hou
- Tianjin Key Laboratory of Composite and Functional Materials, Tianjin University, Tianjin, China
- School of Materials Science and Engineering, Tianjin University, Tianjin, China
| | - Xubo Yuan
- Tianjin Key Laboratory of Composite and Functional Materials, Tianjin University, Tianjin, China
- School of Materials Science and Engineering, Tianjin University, Tianjin, China
| |
Collapse
|
109
|
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]
|
110
|
Shmidov Y, Zhou M, Yosefi G, Bitton R, Matson JB. Hydrogels composed of hyaluronic acid and dendritic ELPs: hierarchical structure and physical properties. SOFT MATTER 2019; 15:917-925. [PMID: 30644510 DOI: 10.1039/c8sm02450b] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Hydrogels that mimic the native extracellular matrix were prepared from hyaluronic acid (HA) and amine-terminated dendritic elastin-like peptides (denELPs) of generations 1, 2, and 3 (G1, 2, and 3) as crosslinking units. The physical properties of the hydrogels were investigated by rheology, scanning electron microscopy, swelling tests, small-angle X-ray scattering (SAXS), and model drug loading and release assays. Hydrogel properties depended on the generation number of the denELP, which contained structural segments based on the repeating GLPGL pentamer. Hydrogels with higher generation denELPs (G2 and 3) showed similar properties, but those prepared from G1 denELPs were rheologically weaker, had a larger mesh size, absorbed less model drug, and released the drug more quickly. Interestingly, most of the HA_denELP hydrogels studied here remained transparent upon gelation, but after lyophilization and addition of water retained opaque, "solid-like" regions for up to 4 d during rehydration. This rehydration process was carefully evaluated through time-course SAXS studies, and the phenomenon was attributed to the formation of pre-coacervates in the gel-forming step, which slowly swelled in water during rehydration. These findings provide important insights into the behavior of ELP-based hydrogels, in which physical crosslinking of the ELP domains can be controlled to tune mechanical properties, highlighting the potential of HA_denELP hydrogels as biomaterials.
Collapse
Affiliation(s)
- Yulia Shmidov
- Department of Chemical Engineering and the Ilze Katz Institute for Nanoscale Science and Technology, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel.
| | | | | | | | | |
Collapse
|
111
|
Li C, Wang K, Zhou X, Li T, Xu Y, Qiang L, Peng M, Xu Y, Xie L, He C, Wang B, Wang J. Controllable fabrication of hydroxybutyl chitosan/oxidized chondroitin sulfate hydrogels by 3D bioprinting technique for cartilage tissue engineering. Biomed Mater 2019; 14:025006. [DOI: 10.1088/1748-605x/aaf8ed] [Citation(s) in RCA: 56] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
|
112
|
Teng L, Chen Y, Jia YG, Ren L. Supramolecular and dynamic covalent hydrogel scaffolds: from gelation chemistry to enhanced cell retention and cartilage regeneration. J Mater Chem B 2019; 7:6705-6736. [DOI: 10.1039/c9tb01698h] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
This review highlights the most recent progress in gelation strategies of biomedical supramolecular and dynamic covalent crosslinking hydrogels and their applications for enhancing cell retention and cartilage regeneration.
Collapse
Affiliation(s)
- Lijing Teng
- School of Medicine
- South China University of Technology
- Guangzhou 510006
- China
- National Engineering Research Center for Tissue Restoration and Reconstruction
| | - Yunhua Chen
- National Engineering Research Center for Tissue Restoration and Reconstruction
- South China University of Technology
- Guangzhou 510006
- China
- School of Materials Science and Engineering
| | - Yong-Guang Jia
- National Engineering Research Center for Tissue Restoration and Reconstruction
- South China University of Technology
- Guangzhou 510006
- China
- School of Materials Science and Engineering
| | - Li Ren
- National Engineering Research Center for Tissue Restoration and Reconstruction
- South China University of Technology
- Guangzhou 510006
- China
- School of Materials Science and Engineering
| |
Collapse
|
113
|
Wang R, Fu L, Liu J, Li H. Decorating protein hydrogels reversibly enables dynamic presentation and release of functional protein ligands on protein hydrogels. Chem Commun (Camb) 2019; 55:12703-12706. [DOI: 10.1039/c9cc06374a] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Utilizing protein fragment reconstitution, we demonstrate the reversible and repeatable functionalization of protein hydrogels.
Collapse
Affiliation(s)
- Ruidi Wang
- Department of Chemistry
- University of British Columbia
- Vancouver
- Canada
- State Key Laboratory of Supramolecular Structure and Materials
| | - Linglan Fu
- Department of Chemistry
- University of British Columbia
- Vancouver
- Canada
| | - Junqiu Liu
- State Key Laboratory of Supramolecular Structure and Materials
- College of Chemistry
- Jilin University
- Changchun 130012
- P. R. China
| | - Hongbin Li
- Department of Chemistry
- University of British Columbia
- Vancouver
- Canada
| |
Collapse
|
114
|
Richardson BM, Wilcox DG, Randolph MA, Anseth KS. Hydrazone covalent adaptable networks modulate extracellular matrix deposition for cartilage tissue engineering. Acta Biomater 2019; 83:71-82. [PMID: 30419278 PMCID: PMC6291351 DOI: 10.1016/j.actbio.2018.11.014] [Citation(s) in RCA: 64] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2018] [Revised: 08/15/2018] [Accepted: 11/08/2018] [Indexed: 01/18/2023]
Abstract
Cartilage tissue engineering strategies often rely on hydrogels with fixed covalent crosslinks for chondrocyte encapsulation, yet the resulting material properties are largely elastic and can impede matrix deposition. To address this limitation, hydrazone crosslinked poly(ethylene glycol) hydrogels were formulated to achieve tunable viscoelastic properties and to study how chondrocyte proliferation and matrix deposition vary with the time-dependent material properties of covalent adaptable networks. Hydrazone equilibrium differences were leveraged to produce average stress relaxation times from hours (4.01 × 103 s) to months (2.78 × 106 s) by varying the percentage of alkyl-hydrazone (aHz) and benzyl-hydrazone (bHz) crosslinks. Swelling behavior and degradation associated with adaptability were characterized to quantify temporal network changes that can influence the behavior of encapsulated chondrocytes. After four weeks, mass swelling ratios varied from 36 ± 3 to 17 ± 0.4 and polymer retention ranged from 46 ± 4% to 92 ± 5%, with higher aHz content leading to loss of network connectivity with time. Hydrogels were formulated near the Flory-Stockmayer bHz percolation threshold (17% bHz) to investigate chondrocyte response to distinct levels of covalent architecture adaptability. Four weeks post-encapsulation, formulations with average relaxation times of 3 days (2.6 × 105s) revealed increased cellularity and an interconnected articular cartilage-specific matrix. Chondrocytes embedded in this adaptable formulation (22% bHz) deposited 190 ± 30% more collagen and 140 ± 20% more sulfated glycosaminoglycans compared to the 100% bHz control, which constrained matrix deposition to pericellular space. Collectively, these findings indicate that incorporating highly adaptable aHz crosslinks enhanced regenerative outcomes. However, connected networks containing more stable bHz bonds were required to achieve the highest quality neocartilaginous tissue. STATEMENT OF SIGNIFICANCE: Covalently crosslinked hydrogels provide robust mechanical support for cartilage tissue engineering applications in articulating joints. However, these materials traditionally demonstrate purely elastic responses to deformation despite the dynamic viscoelastic properties of native cartilage tissue. Here, we present hydrazone poly(ethylene glycol) hydrogels with tunable viscoelastic properties and study covalent adaptable networks for cartilage tissue engineering. Using hydrazone equilibrium and Flory-Stockmayer theory we identified average relaxation times leading to enhanced regenerative outcomes and showed that extracellular matrix deposition was biphasic as a function of the hydrazone covalent adaptability. We also showed that the incorporation of highly adaptable covalent crosslinks could improve cellularity of neotissue, but that a percolating network of more stable bonds was required to maintain scaffold integrity and form the highest quality neocartilaginous tissue.
Collapse
Affiliation(s)
- Benjamin M Richardson
- Dept. Chemical and Biological Engineering, University of Colorado Boulder, Jennie Smoly Caruthers Biotechnology Building, 3415 Colorado Ave, Boulder, CO 80303, USA; The BioFrontiers Institute, University of Colorado Boulder, Jennie Smoly Caruthers Biotechnology Building, 3415 Colorado Ave, Boulder, CO 80303, USA.
| | - Daniel G Wilcox
- Dept. Chemical and Biological Engineering, University of Colorado Boulder, Jennie Smoly Caruthers Biotechnology Building, 3415 Colorado Ave, Boulder, CO 80303, USA.
| | - Mark A Randolph
- Dept. Orthopedic Surgery, Musculoskeletal Tissue Engineering Labs, Massachusetts General Hospital, Harvard Medical School, 55 Fruit St, WAC 435, Boston, MA 02114, USA; Div. Plastic Surgery, Plastic Surgery Research Laboratory, Massachusetts General Hospital, Harvard Medical School, 15 Parkman St, WACC 453, Boston, MA 02114, USA.
| | - Kristi S Anseth
- Dept. Chemical and Biological Engineering, University of Colorado Boulder, Jennie Smoly Caruthers Biotechnology Building, 3415 Colorado Ave, Boulder, CO 80303, USA; The BioFrontiers Institute, University of Colorado Boulder, Jennie Smoly Caruthers Biotechnology Building, 3415 Colorado Ave, Boulder, CO 80303, USA.
| |
Collapse
|
115
|
Liu Y, Hsu SH. Synthesis and Biomedical Applications of Self-healing Hydrogels. Front Chem 2018; 6:449. [PMID: 30333970 PMCID: PMC6176467 DOI: 10.3389/fchem.2018.00449] [Citation(s) in RCA: 120] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2018] [Accepted: 09/07/2018] [Indexed: 01/08/2023] Open
Abstract
Hydrogels, which are crosslinked polymer networks with high water contents and rheological solid-like properties, are attractive materials for biomedical applications. Self-healing hydrogels are particularly interesting because of their abilities to repair the structural damages and recover the original functions, similar to the healing of organism tissues. In addition, self-healing hydrogels with shear-thinning properties can be potentially used as the vehicles for drug/cell delivery or the bioinks for 3D printing by reversible sol-gel transitions. Therefore, self-healing hydrogels as biomedical materials have received a rapidly growing attention in recent years. In this paper, synthesis methods and repair mechanisms of self-healing hydrogels are reviewed. The biomedical applications of self-healing hydrogels are also described, with a focus on the potential therapeutic applications verified through in vivo experiments. The trends indicate that self-healing hydrogels with automatically reversible crosslinks may be further designed and developed for more advanced biomedical applications in the future.
Collapse
Affiliation(s)
- Yi Liu
- Institute of Polymer Science and Engineering, National Taiwan University, Taipei, Taiwan
| | - Shan-hui Hsu
- Institute of Polymer Science and Engineering, National Taiwan University, Taipei, Taiwan
- Institute of Cellular and System Medicine, National Health Research Institutes, Miaoli, Taiwan
| |
Collapse
|
116
|
Gopinathan J, Noh I. Click Chemistry-Based Injectable Hydrogels and Bioprinting Inks for Tissue Engineering Applications. Tissue Eng Regen Med 2018; 15:531-546. [PMID: 30603577 PMCID: PMC6171698 DOI: 10.1007/s13770-018-0152-8] [Citation(s) in RCA: 69] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2018] [Revised: 07/27/2018] [Accepted: 07/30/2018] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND The tissue engineering and regenerative medicine approach require biomaterials which are biocompatible, easily reproducible in less time, biodegradable and should be able to generate complex three-dimensional (3D) structures to mimic the native tissue structures. Click chemistry offers the much-needed multifunctional hydrogel materials which are interesting biomaterials for the tissue engineering and bioprinting inks applications owing to their excellent ability to form hydrogels with printability instantly and to retain the live cells in their 3D network without losing the mechanical integrity even under swollen state. METHODS In this review, we present the recent developments of in situ hydrogel in the field of click chemistry reported for the tissue engineering and 3D bioinks applications, by mainly covering the diverse types of click chemistry methods such as Diels-Alder reaction, strain-promoted azide-alkyne cycloaddition reactions, thiol-ene reactions, oxime reactions and other interrelated reactions, excluding enzyme-based reactions. RESULTS The click chemistry-based hydrogels are formed spontaneously on mixing of reactive compounds and can encapsulate live cells with high viability for a long time. The recent works reported by combining the advantages of click chemistry and 3D bioprinting technology have shown to produce 3D tissue constructs with high resolution using biocompatible hydrogels as bioinks and in situ injectable forms. CONCLUSION Interestingly, the emergence of click chemistry reactions in bioink synthesis for 3D bioprinting have shown the massive potential of these reaction methods in creating 3D tissue constructs. However, the limitations and challenges involved in the click chemistry reactions should be analyzed and bettered to be applied to tissue engineering and 3D bioinks. The future scope of these materials is promising, including their applications in in situ 3D bioprinting for tissue or organ regeneration.
Collapse
Affiliation(s)
- Janarthanan Gopinathan
- Department of Chemical and Biomolecular Engineering, Seoul National University of Science and Technology (Seoul Tech), 232 Gongneung-ro, Nowon-Gu, Seoul, 01811 Republic of Korea
- Convergence Institute of Biomedical Engineering and Biomaterials, Seoul National University of Science and Technology (Seoul Tech), 232 Gongneung-ro, Nowon-Gu, Seoul, 01811 Republic of Korea
| | - Insup Noh
- Department of Chemical and Biomolecular Engineering, Seoul National University of Science and Technology (Seoul Tech), 232 Gongneung-ro, Nowon-Gu, Seoul, 01811 Republic of Korea
- Convergence Institute of Biomedical Engineering and Biomaterials, Seoul National University of Science and Technology (Seoul Tech), 232 Gongneung-ro, Nowon-Gu, Seoul, 01811 Republic of Korea
| |
Collapse
|
117
|
Wieduwild R, Howarth M. Assembling and decorating hyaluronan hydrogels with twin protein superglues to mimic cell-cell interactions. Biomaterials 2018; 180:253-264. [DOI: 10.1016/j.biomaterials.2018.07.020] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2018] [Revised: 07/03/2018] [Accepted: 07/11/2018] [Indexed: 12/30/2022]
|
118
|
Zhu D, Trinh P, Liu E, Yang F. Biochemical and Mechanical Gradients Synergize To Enhance Cartilage Zonal Organization in 3D. ACS Biomater Sci Eng 2018; 4:3561-3569. [PMID: 33465918 DOI: 10.1021/acsbiomaterials.8b00775] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Articular cartilage is characterized by zonal organizations containing dual gradients of biochemical cues and mechanical cues. However, how biochemical gradient interacts with the mechanical gradient to drive the cartilage zonal development remains largely unknown. Here, we report the development of a dual-gradient hydrogel platform as a 3D niche to elucidate the relative contributions of biochemical and mechanical niche gradients in modulating zonal-specific chondrocyte responses and cartilage zonal organization. Chondroitin sulfate (CS), a major constituent of cartilage extracellular matrix, was chosen as the biochemical cue. Poly(ethylene glycol), a bioinert polymer, was used to create the stiffness gradient. Dual-gradient hydrogels upregulated cartilage marker expressions and increased chondrocyte proliferation and collagen deposition in a zonal-dependent manner. Hydrogels with CS gradient alone exhibited poor mechanical strength and degraded prematurely after 1 week of culture. While CS gradient alone did not support long-term culture, adding CS gradient to mechanical-gradient hydrogels substantially enhanced cell proliferation, glycosaminoglycan production, and collagen deposition compared to mechanical-gradient hydrogels alone. These results suggest that biochemical and mechanical gradient cues synergize to enhance cartilage zonal organization by chondrocytes in 3D. Together, our results validate the potential of dual-gradient hydrogels as a 3D cell niche for cartilage regeneration with zonal organization and may be used to recreate other tissue interfaces.
Collapse
Affiliation(s)
- Danqing Zhu
- Department of Bioengineering, Stanford University, Stanford, California 94305, United States
| | - Pavin Trinh
- Department of Biology, Stanford University, Stanford, California 94305, United States
| | - Elisa Liu
- Department of Bioengineering, Stanford University, Stanford, California 94305, United States
| | - Fan Yang
- Departments of Bioengineering and Orthopaedic Surgery, Stanford University, Stanford, California 94305, United States
| |
Collapse
|
119
|
Zhu X, Chen T, Feng B, Weng J, Duan K, Wang J, Lu X. Biomimetic Bacterial Cellulose-Enhanced Double-Network Hydrogel with Excellent Mechanical Properties Applied for the Osteochondral Defect Repair. ACS Biomater Sci Eng 2018; 4:3534-3544. [DOI: 10.1021/acsbiomaterials.8b00682] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Xiangbo Zhu
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu, Sichuan 610031, P.R. China
| | - Taijun Chen
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu, Sichuan 610031, P.R. China
| | - Bo Feng
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu, Sichuan 610031, P.R. China
| | - Jie Weng
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu, Sichuan 610031, P.R. China
| | - Ke Duan
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu, Sichuan 610031, P.R. China
| | - Jianxin Wang
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu, Sichuan 610031, P.R. China
| | - Xiaobo Lu
- Department of Bone and Joint Surgery, Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan 646000, P.R. China
| |
Collapse
|
120
|
Sani ES, Portillo-Lara R, Spencer A, Yu W, Geilich BM, Noshadi I, Webster TJ, Annabi N. Engineering Adhesive and Antimicrobial Hyaluronic Acid/Elastin-like Polypeptide Hybrid Hydrogels for Tissue Engineering Applications. ACS Biomater Sci Eng 2018; 4:2528-2540. [PMID: 33435116 PMCID: PMC11110868 DOI: 10.1021/acsbiomaterials.8b00408] [Citation(s) in RCA: 76] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Hydrogel-based biomaterials have been widely used for tissue engineering applications because of their high water content, swellability, and permeability, which facilitate transport and diffusion of essential nutrients, oxygen, and waste across the scaffold. These characteristics make hydrogels suitable for encapsulating cells and creating a cell supportive environment that promotes tissue regeneration when implanted in vivo. This is particularly important in the context of tissues whose intrinsic regenerative capacity is limited, such as cartilage. However, the clinical translation of hydrogels has been limited by their poor mechanical performance, low adhesive strength, uncontrolled degradation rates, and their susceptibility to bacterial colonization. Here, we introduce an elastic, antimicrobial, and adhesive hydrogel comprised of methacrylated hyaluronic acid (MeHA) and an elastin-like polypeptide (ELP), which can be rapidly photo-cross-linked in situ for the regeneration and repair of different tissues. Hybrid hydrogels with a wide range of physical properties were engineered by varying the concentrations of MeHA and ELP. In addition, standard adhesion tests demonstrated that the MeHA/ELP hydrogels exhibited higher adhesive strength to the tissue than commercially available tissue adhesives. MeHA/ELP hydrogels were then rendered antimicrobial through the incorporation of zinc oxide (ZnO) nanoparticles, and were shown to significantly inhibit the growth of methicillin-resistant Staphylococcus aureus (MRSA), as compared to controls. Furthermore, the composite adhesive hydrogels supported in vitro mammalian cellular growth, spreading, and proliferation. In addition, in vivo subcutaneous implantation demonstrated that MeHA/ELP hydrogels did not elicit any significant inflammatory response, and could be efficiently biodegraded while promoting the integration of new autologous tissue. In summary, we demonstrated for the first time that MeHA/ELP-ZnO hydrogel can be used as an adhesive and antimicrobial biomaterial for tissue engineering applications, because of its highly tunable physical characteristics, as well as remarkable adhesive and antimicrobial properties.
Collapse
Affiliation(s)
- Ehsan Shirzaei Sani
- Department of Chemical Engineering, Northeastern University, Boston, Massachusetts 02115, United States
| | - Roberto Portillo-Lara
- Department of Chemical Engineering, Northeastern University, Boston, Massachusetts 02115, United States
- Centro de Biotecnología FEMSA, Tecnológico de Monterrey, Monterrey, Nuevo Leon 64700, México
| | - Andrew Spencer
- Department of Chemical Engineering, Northeastern University, Boston, Massachusetts 02115, United States
| | - Wendy Yu
- Department of Chemical Engineering, Northeastern University, Boston, Massachusetts 02115, United States
| | - Benjamin M. Geilich
- Department of Chemical Engineering, Northeastern University, Boston, Massachusetts 02115, United States
| | - Iman Noshadi
- Department of Chemical Engineering, Northeastern University, Boston, Massachusetts 02115, United States
| | - Thomas J. Webster
- Department of Chemical Engineering, Northeastern University, Boston, Massachusetts 02115, United States
- Wenzhou Institute of Biomaterials and Engineering, Wenzhou Medical University, Wenzhou, China
| | - Nasim Annabi
- Department of Chemical Engineering, Northeastern University, Boston, Massachusetts 02115, United States
- Biomaterials Innovation Center, Brigham and Women’s Hospital, Harvard Medical School Boston, Massachusetts 02139, United States
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| |
Collapse
|
121
|
Koçer G, Jonkheijm P. About Chemical Strategies to Fabricate Cell-Instructive Biointerfaces with Static and Dynamic Complexity. Adv Healthc Mater 2018; 7:e1701192. [PMID: 29717821 DOI: 10.1002/adhm.201701192] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2017] [Revised: 02/12/2018] [Indexed: 12/21/2022]
Abstract
Properly functioning cell-instructive biointerfaces are critical for healthy integration of biomedical devices in the body and serve as decisive tools for the advancement of our understanding of fundamental cell biological phenomena. Studies are reviewed that use covalent chemistries to fabricate cell-instructive biointerfaces. These types of biointerfaces typically result in a static presentation of predefined cell-instructive cues. Chemically defined, but dynamic cell-instructive biointerfaces introduce spatiotemporal control over cell-instructive cues and present another type of biointerface, which promises a more biomimetic way to guide cell behavior. Therefore, strategies that offer control over the lateral sorting of ligands, the availability and molecular structure of bioactive ligands, and strategies that offer the ability to induce physical, chemical and mechanical changes in situ are reviewed. Specific attention is paid to state-of-the-art studies on dynamic, cell-instructive 3D materials. Future work is expected to further deepen our understanding of molecular and cellular biological processes investigating cell-type specific responses and the translational steps toward targeted in vivo applications.
Collapse
Affiliation(s)
- Gülistan Koçer
- TechMed Centre and MESA Institute for Nanotechnology; University of Twente; 7500 AE Enschede The Netherlands
- Institute of Biomaterials and Biomedical Engineering; University of Toronto; Toronto M5S 3G9 Ontario Canada
| | - Pascal Jonkheijm
- TechMed Centre and MESA Institute for Nanotechnology; University of Twente; 7500 AE Enschede The Netherlands
- Institute of Biomaterials and Biomedical Engineering; University of Toronto; Toronto M5S 3G9 Ontario Canada
| |
Collapse
|
122
|
Injectable self-crosslinking HA-SH/Col I blend hydrogels for in vitro construction of engineered cartilage. Carbohydr Polym 2018; 190:57-66. [DOI: 10.1016/j.carbpol.2018.02.057] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2017] [Revised: 02/14/2018] [Accepted: 02/20/2018] [Indexed: 12/18/2022]
|
123
|
LeSavage BL, Suhar NA, Madl CM, Heilshorn SC. Production of Elastin-like Protein Hydrogels for Encapsulation and Immunostaining of Cells in 3D. J Vis Exp 2018. [PMID: 29863669 DOI: 10.3791/57739] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023] Open
Abstract
Two-dimensional (2D) tissue culture techniques have been essential for our understanding of fundamental cell biology. However, traditional 2D tissue culture systems lack a three-dimensional (3D) matrix, resulting in a significant disconnect between results collected in vitro and in vivo. To address this limitation, researchers have engineered 3D hydrogel tissue culture platforms that can mimic the biochemical and biophysical properties of the in vivo cell microenvironment. This research has motivated the need to develop material platforms that support 3D cell encapsulation and downstream biochemical assays. Recombinant protein engineering offers a unique toolset for 3D hydrogel material design and development by allowing for the specific control of protein sequence and therefore, by extension, the potential mechanical and biochemical properties of the resultant matrix. Here, we present a protocol for the expression of recombinantly-derived elastin-like protein (ELP), which can be used to form hydrogels with independently tunable mechanical properties and cell-adhesive ligand concentration. We further present a methodology for cell encapsulation within ELP hydrogels and subsequent immunofluorescent staining of embedded cells for downstream analysis and quantification.
Collapse
Affiliation(s)
| | - Nicholas A Suhar
- Department of Materials Science and Engineering, Stanford University
| | | | - Sarah C Heilshorn
- Department of Materials Science and Engineering, Stanford University;
| |
Collapse
|
124
|
Picchioni F, Muljana H. Hydrogels Based on Dynamic Covalent and Non Covalent Bonds: A Chemistry Perspective. Gels 2018; 4:E21. [PMID: 30674797 PMCID: PMC6318606 DOI: 10.3390/gels4010021] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2018] [Revised: 03/04/2018] [Accepted: 03/05/2018] [Indexed: 12/29/2022] Open
Abstract
Hydrogels based on reversible covalent bonds represent an attractive topic for research at both academic and industrial level. While the concept of reversible covalent bonds dates back a few decades, novel developments continue to appear in the general research area of gels and especially hydrogels. The reversible character of the bonds, when translated at the general level of the polymeric network, allows reversible interaction with substrates as well as responsiveness to variety of external stimuli (e.g., self-healing). These represent crucial characteristics in applications such as drug delivery and, more generally, in the biomedical world. Furthermore, the several possible choices that can be made in terms of reversible interactions generate an almost endless number of possibilities in terms of final product structure and properties. In the present work, we aim at reviewing the latest developments in this field (i.e., the last five years) by focusing on the chemistry of the systems at hand. As such, this should allow molecular designers to develop a toolbox for the synthesis of new systems with tailored properties for a given application.
Collapse
Affiliation(s)
- Francesco Picchioni
- Department of Chemical Engineering, Engineering and Technology Institute Groningen (ENTEG), University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands.
| | - Henky Muljana
- Department of Chemical Engineering, Engineering and Technology Institute Groningen (ENTEG), University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands.
- Department of Chemical Engineering, Parahyangan Catholic University, Ciumbuleuit 94, Bandung 40141, West Java, Indonesia.
| |
Collapse
|
125
|
Rose JC, Gehlen DB, Haraszti T, Köhler J, Licht CJ, De Laporte L. Biofunctionalized aligned microgels provide 3D cell guidance to mimic complex tissue matrices. Biomaterials 2018; 163:128-141. [PMID: 29459322 DOI: 10.1016/j.biomaterials.2018.02.001] [Citation(s) in RCA: 74] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2017] [Revised: 02/01/2018] [Accepted: 02/02/2018] [Indexed: 12/27/2022]
Abstract
Natural healing is based on highly orchestrated processes, in which the extracellular matrix plays a key role. To resemble the native cell environment, we introduce an artificial extracellular matrix (aECM) with the capability to template hierarchical and anisotropic structures in situ, allowing a minimally-invasive application via injection. Synthetic, magnetically responsive, rod-shaped microgels are locally aligned and fixed by a biocompatible surrounding hydrogel, creating a hybrid anisotropic hydrogel (Anisogel), of which the physical, mechanical, and chemical properties can be tailored. The microgels are rendered cell-adhesive with GRGDS and incorporated either inside a cell-adhesive fibrin or bioinert poly(ethylene glycol) hydrogel to strongly interact with fibroblasts. GRGDS-modified microgels inside a fibrin-based Anisogel enhance fibroblast alignment and lead to a reduction in fibronectin production, indicating successful replacement of structural proteins. In addition, YAP-translocation to the nucleus increases with the concentration of microgels, indicating cellular sensing of the overall anisotropic mechanical properties of the Anisogel. For bioinert surrounding PEG hydrogels, GRGDS-microgels are required to support cell proliferation and fibronectin production. In contrast to fibroblasts, primary nerve growth is not significantly affected by the biomodification of the microgels. In conclusion, this approach opens new opportunities towards advanced and complex aECMs for tissue regeneration.
Collapse
Affiliation(s)
- Jonas C Rose
- DWI - Leibniz-Institute for Interactive Materials, Aachen, Germany
| | - David B Gehlen
- DWI - Leibniz-Institute for Interactive Materials, Aachen, Germany
| | - Tamás Haraszti
- DWI - Leibniz-Institute for Interactive Materials, Aachen, Germany
| | - Jens Köhler
- DWI - Leibniz-Institute for Interactive Materials, Aachen, Germany
| | | | - Laura De Laporte
- DWI - Leibniz-Institute for Interactive Materials, Aachen, Germany.
| |
Collapse
|
126
|
Jung A, Makkar P, Amirian J, Lee BT. A novel hybrid multichannel biphasic calcium phosphate granule-based composite scaffold for cartilage tissue regeneration. J Biomater Appl 2017; 32:775-787. [DOI: 10.1177/0885328217741757] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
The objective of the present study was to develop a novel hybrid multichannel biphasic calcium phosphate granule (MCG)-based composite system for cartilage regeneration. First, hyaluronic acid-gelatin (HG) hydrogel was coated onto MCG matrix (MCG-HG). Poly(lactic-co-glycolic acid) (PLGA) microspheres was separately prepared and modified with polydopamine subsequent to BMP-7 loading (B). The surface-modified microspheres were finally embedded into MCG-HG scaffold to develop the novel hybrid (MCG-HG-PLGA-PD-B) composite system. The newly developed MCG-HG-PLGA-PD-B composite was then subjected to scanning electron microscopy, energy dispersive X-ray spectroscopy, Fourier Transform infrared spectroscopy, porosity, compressive strength, swelling, BMP-7 release and in-vitro biocompatibility studies. Results showed that 60% of BMP-7 retained on the granular surface after 28 days. A hybrid MCG-HG-PLGA-PD-B composite scaffold exhibited higher swelling and compressive strength compared to MCG-HG or MCG. In-vitro studies showed that MCG-HG-PLGA-PD-B had improved cell viability and cell proliferation for both MC3T3-E1 pre-osteoblasts and ATDC5 pre-chondrocytes cell line with respect to MCG-HG or MCG scaffold. Our results suggest that a hybrid MCG-HG-PLGA-PD-B composite scaffold can be a promising candidate for cartilage regeneration applications.
Collapse
Affiliation(s)
- Albert Jung
- Department of Regenerative Medicine, College of Medicine, Soonchunhyang University, 366-1 Ssangyoung-Dong, Cheonan, South Korea
| | - Preeti Makkar
- Institute of Tissue Regeneration, College of Medicine, Soonchunhyang University, 366-1 Ssangyoung-Dong, Cheonan, South Korea
| | - Jhaleh Amirian
- Institute of Tissue Regeneration, College of Medicine, Soonchunhyang University, 366-1 Ssangyoung-Dong, Cheonan, South Korea
| | - Byong-Taek Lee
- Department of Regenerative Medicine, College of Medicine, Soonchunhyang University, 366-1 Ssangyoung-Dong, Cheonan, South Korea
- Institute of Tissue Regeneration, College of Medicine, Soonchunhyang University, 366-1 Ssangyoung-Dong, Cheonan, South Korea
| |
Collapse
|
127
|
Song JE, Tripathy N, Cha SR, Jeon SH, Kwon SY, Suh DS, Khang G. Three-dimensional duck’s feet collagen/PLGA scaffold for chondrification: role of pore size and porosity. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2017; 29:932-941. [DOI: 10.1080/09205063.2017.1394712] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Jeong Eun Song
- Department of BIN Convergence Technology, Department of Polymer Nano Science & Technology and Polymer Fusion Research Center, Chonbuk National University, Jeonju, Republic of Korea
| | - Nirmalya Tripathy
- Department of BIN Convergence Technology, Department of Polymer Nano Science & Technology and Polymer Fusion Research Center, Chonbuk National University, Jeonju, Republic of Korea
| | - Se Rom Cha
- Department of BIN Convergence Technology, Department of Polymer Nano Science & Technology and Polymer Fusion Research Center, Chonbuk National University, Jeonju, Republic of Korea
| | - Sung Hyun Jeon
- Department of BIN Convergence Technology, Department of Polymer Nano Science & Technology and Polymer Fusion Research Center, Chonbuk National University, Jeonju, Republic of Korea
| | - Soon Yong Kwon
- Department of Orthopedic Surgery, Yeouido St. Mary’s Hospital, Catholic University of Korea, Seoul, Korea
| | | | - Gilson Khang
- Department of BIN Convergence Technology, Department of Polymer Nano Science & Technology and Polymer Fusion Research Center, Chonbuk National University, Jeonju, Republic of Korea
| |
Collapse
|
128
|
Escobar F, Anseth KS, Schultz KM. Dynamic Changes in Material Properties and Degradation of Poly(ethylene glycol)–Hydrazone Gels as a Function of pH. Macromolecules 2017. [DOI: 10.1021/acs.macromol.7b01246] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Francisco Escobar
- Department
of Chemical and Biomolecular Engineering, Lehigh University, Bethlehem, Pennsylvania 18015, United States
| | - Kristi S. Anseth
- Department
of Chemical and Biological Engineering, the Biofrontiers Institute
and Howard Hughes Medical Institute, University of Colorado at Boulder, Boulder, Colorado 80303, United States
| | - Kelly M. Schultz
- Department
of Chemical and Biomolecular Engineering, Lehigh University, Bethlehem, Pennsylvania 18015, United States
| |
Collapse
|