1
|
Milton LA, Davern JW, Hipwood L, Chaves JDS, McGovern J, Broszczak D, Hutmacher DW, Meinert C, Toh YC. Liver click dECM hydrogels for engineering hepatic microenvironments. Acta Biomater 2024:S1742-7061(24)00351-9. [PMID: 38960110 DOI: 10.1016/j.actbio.2024.06.037] [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: 01/22/2024] [Revised: 06/20/2024] [Accepted: 06/25/2024] [Indexed: 07/05/2024]
Abstract
Decellularized extracellular matrix (dECM) hydrogels provide tissue-specific microenvironments which accommodate physiological cellular phenotypes in 3D in vitro cell cultures. However, their formation hinges on collagen fibrillogenesis, a complex process which limits regulation of physicochemical properties. Hence, achieving reproducible results with dECM hydrogels poses as a challenge. Here, we demonstrate that thiolation of solubilized liver dECM enables rapid formation of covalently crosslinked hydrogels via Michael-type addition, allowing for precise control over mechanical properties and superior organotypic biological activity. Investigation of various decellularization methodologies revealed that treatment of liver tissue with Triton X-100 and ammonium hydroxide resulted in near complete DNA removal with significant retention of the native liver proteome. Chemical functionalization of pepsin-solubilized liver dECMs via 1-ethyl-3(3-dimethylamino)propyl carbodiimide (EDC)/N-hydroxysuccinimide (NHS) coupling of l-Cysteine created thiolated liver dECM (dECM-SH), which rapidly reacted with 4-arm polyethylene glycol (PEG)-maleimide to form optically clear hydrogels under controlled conditions. Importantly, Young's moduli could be precisely tuned between 1 - 7 kPa by varying polymer concentrations, enabling close replication of healthy and fibrotic liver conditions in in vitro cell cultures. Click dECM-SH hydrogels were cytocompatible, supported growth of HepG2 and HepaRG liver cells, and promoted liver-specific functional phenotypes as evidenced by increased metabolic activity, as well CYP1A2 and CYP3A4 activity and excretory function when compared to monolayer culture and collagen-based hydrogels. Our findings demonstrate that click-functionalized dECM hydrogels offer a highly controlled, reproducible alternative to conventional tissue-derived hydrogels for in vitro cell culture applications. STATEMENT OF SIGNIFICANCE: Traditional dECM hydrogels face challenges in reproducibility and mechanical property control due to variable crosslinking processes. We introduce a click hydrogel based on porcine liver decellularized extracellular matrix (dECM) that circumnavigates these challenges. After optimizing liver decellularization for ECM retention, we integrated thiol-functionalized liver dECM with polyethylene-glycol derivatives through Michael-type addition click chemistry, enabling rapid, room-temperature gelation. This offers enhanced control over the hydrogel's mechanical and biochemical properties. The resultant click dECM hydrogels mimic the liver's natural ECM and exhibit greater mechanical tunability and handling ease, facilitating their application in high-throughput and industrial settings. Moreover, these hydrogels significantly improve the function of HepaRG-derived hepatocytes in 3D culture, presenting an advancement for liver tissue cell culture models for drug testing applications.
Collapse
Affiliation(s)
- Laura A Milton
- Faculty of Engineering, School of Mechanical, Medical and Process Engineering, Queensland University of Technology, Brisbane, Australia; Centre for Biomedical Technologies, Queensland University of Technology, Brisbane, Australia; Gelomics Pty Ltd, Brisbane, Australia
| | - Jordan W Davern
- Faculty of Engineering, School of Mechanical, Medical and Process Engineering, Queensland University of Technology, Brisbane, Australia; Centre for Biomedical Technologies, Queensland University of Technology, Brisbane, Australia; Gelomics Pty Ltd, Brisbane, Australia; ARC Training Centre for Cell and Tissue Engineering Technologies, Queensland University of Technology, Brisbane, Australia
| | - Luke Hipwood
- Centre for Biomedical Technologies, Queensland University of Technology, Brisbane, Australia; Gelomics Pty Ltd, Brisbane, Australia; Faculty of Health, School of Biomedical Sciences, Queensland University of Technology, Brisbane, Australia
| | - Juliana D S Chaves
- Cell & Molecular Biology Department, Mental Health Program, QIMR Berghofer Medical Research Institute, Brisbane, Australia
| | - Jacqui McGovern
- Centre for Biomedical Technologies, Queensland University of Technology, Brisbane, Australia; ARC Training Centre for Cell and Tissue Engineering Technologies, Queensland University of Technology, Brisbane, Australia; Max Planck Queensland Centre (MPQC) for the Materials Science of Extracellular Matrices, Queensland University of Technology, Brisbane, Australia
| | - Daniel Broszczak
- Faculty of Health, School of Biomedical Sciences, Queensland University of Technology, Brisbane, Australia
| | - Dietmar W Hutmacher
- Centre for Biomedical Technologies, Queensland University of Technology, Brisbane, Australia; ARC Training Centre for Cell and Tissue Engineering Technologies, Queensland University of Technology, Brisbane, Australia; Max Planck Queensland Centre (MPQC) for the Materials Science of Extracellular Matrices, Queensland University of Technology, Brisbane, Australia; Australian Research Council (ARC) Training Centre for Multiscale 3D Imaging, Modelling and Manufacturing (M3D Innovation), Queensland University of Technology, Brisbane, Australia
| | - Christoph Meinert
- Centre for Biomedical Technologies, Queensland University of Technology, Brisbane, Australia; Gelomics Pty Ltd, Brisbane, Australia.
| | - Yi-Chin Toh
- Faculty of Engineering, School of Mechanical, Medical and Process Engineering, Queensland University of Technology, Brisbane, Australia; Centre for Biomedical Technologies, Queensland University of Technology, Brisbane, Australia; ARC Training Centre for Cell and Tissue Engineering Technologies, Queensland University of Technology, Brisbane, Australia; Max Planck Queensland Centre (MPQC) for the Materials Science of Extracellular Matrices, Queensland University of Technology, Brisbane, Australia; Centre for Microbiome Research, Queensland University of Technology, Brisbane, Australia.
| |
Collapse
|
2
|
Li Y, Cheng S, Wen H, Xiao L, Deng Z, Huang J, Zhang Z. Coaxial 3D printing of hierarchical structured hydrogel scaffolds for on-demand repair of spinal cord injury. Acta Biomater 2023; 168:400-415. [PMID: 37479156 DOI: 10.1016/j.actbio.2023.07.020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Revised: 06/24/2023] [Accepted: 07/14/2023] [Indexed: 07/23/2023]
Abstract
After spinal cord injury (SCI), endogenous neural stem cells (NSCs) near the damaged site are activated, but few NSCs migrate to the injury epicenter and differentiate into neurons because of the harsh microenvironment. It has demonstrated that implantation of hydrogel scaffold loaded with multiple cues can enhance the function of endogenous NSCs. However, programming different cues on request remains a great challenge. Herein, a time-programmed linear hierarchical structure scaffold is developed for spinal cord injury recovery. The scaffold is obtained through coaxial 3D printing by encapsulating a dual-network hydrogel (composed of hyaluronic acid derivatives and N-cadherin modified sodium alginate, inner layer) into a temperature responsive gelatin/cellulose nanofiber hydrogel (Gel/CNF, outer layer). The reactive species scavenger, metalloporphyrin, loaded in the outer layer is released rapidly by the degradation of Gel/CNF, inhibiting the initial oxidative stress at lesion site to protect endogenous NSCs; while the inner hydrogel with appropriate mechanical support, linear topology structure and bioactive cues facilitates the migration and neuronal differentiation of NSCs at the later stage of SCI treatment, thereby promoting motor functional restorations in SCI rats. This study offers an innovative strategy for fabrication of multifunctional nerve regeneration scaffold, which has potential for clinical treatment of SCI. STATEMENT OF SIGNIFICANCE: Two major challenges facing the recovery from spinal cord injury (SCI) are the low viability of endogenous neural stem cells (NSCs) within the damaged microenvironment, as well as the difficulty of neuronal regeneration at the injured site. To address these issues, a spinal cord-like coaxial scaffold was fabricated with free radical scavenging agent metalloporphyrin Mn (III) tetrakis (4-benzoic acid) porphyrin and chemokine N-cadherin. The scaffold was constructed by 3D bioprinting for time-programmed protection and modulation of NSCs to effectively repair SCI. This 3D coaxially bioprinted biomimetic construct enables multi-factor on-demand repair and may be a promising therapeutic strategy for SCI.
Collapse
Affiliation(s)
- Yuxuan Li
- School of Nano-Tech and Nano-Bionics, University of Science and Technology of China, Hefei 230026, China; CAS Key Laboratory of Nano-Bio Interface, Division of Nanobiomedicine, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, China
| | - Shengnan Cheng
- School of Nano-Tech and Nano-Bionics, University of Science and Technology of China, Hefei 230026, China; CAS Key Laboratory of Nano-Bio Interface, Division of Nanobiomedicine, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, China
| | - Huilong Wen
- The Second People's Hospital of Foshan, Affiliated Foshan Hospital of Southern Medical University, Foshan, Guangdong Province, China
| | - Longyi Xiao
- The Second People's Hospital of Foshan, Affiliated Foshan Hospital of Southern Medical University, Foshan, Guangdong Province, China
| | - Zongwu Deng
- School of Nano-Tech and Nano-Bionics, University of Science and Technology of China, Hefei 230026, China; CAS Key Laboratory of Nano-Bio Interface, Division of Nanobiomedicine, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, China.
| | - Jie Huang
- School of Nano-Tech and Nano-Bionics, University of Science and Technology of China, Hefei 230026, China; CAS Key Laboratory of Nano-Bio Interface, Division of Nanobiomedicine, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, China.
| | - Zhijun Zhang
- School of Nano-Tech and Nano-Bionics, University of Science and Technology of China, Hefei 230026, China; CAS Key Laboratory of Nano-Bio Interface, Division of Nanobiomedicine, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, China.
| |
Collapse
|
3
|
Sharma P, Roy S. Designing ECM-inspired supramolecular scaffolds by utilizing the interactions between a minimalistic neuroactive peptide and heparin. NANOSCALE 2023; 15:7537-7558. [PMID: 37022122 DOI: 10.1039/d2nr06221f] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/19/2023]
Abstract
Short bioactive peptide-based supramolecular hydrogels are emerging as interesting candidates for developing scaffolds for tissue engineering applications. However, proteins and peptides represent only a single class of molecules present in the native ECM, thus, recapitulating the complete ECM microenvironment via only peptide-based biomaterials is extremely challenging. In this direction, complex multicomponent-based biomaterials have started gaining importance for achieving the biofunctional complexity and structural hierarchy of the native ECM. Sugar-peptide complexes can be explored in this direction as they provide essential biological signaling required for cellular growth and survival in vivo. In this direction, we explored the fabrication of an advanced scaffold by employing heparin and short bioactive peptide interactions at the molecular level. Interestingly, the addition of heparin into the peptide has significantly modulated the supramolecular organization, nanofibrous morphology and the mechanical properties of the scaffold. Additionally, the combined hydrogels demonstrated superior biocompatibility as compared to the peptide counterpart at certain ratios. These newly developed scaffolds were also observed to be stable under 3-D cell culture conditions and supported cellular adhesion and proliferation. Most importantly, the inflammatory response was also minimized in the case of combined hydrogels as compared to heparin. We expect that this approach of using simple non-covalent interactions between the ECM-inspired small molecules to fabricate biomaterials with improved mechanical and biological properties could advance the current knowledge on designing ECM mimetic biomaterials. Such an attempt would create a novel, adaptable and simplistic bottom-up strategy for the invention of new and more complex biomaterials of ECM origin with advanced functions.
Collapse
Affiliation(s)
- Pooja Sharma
- Institute of Nano Science and Technology, Sector-81, Knowledge City, Sahibzada Ajit Singh Nagar, Punjab, Pin - 140306, India.
| | - Sangita Roy
- Institute of Nano Science and Technology, Sector-81, Knowledge City, Sahibzada Ajit Singh Nagar, Punjab, Pin - 140306, India.
| |
Collapse
|
4
|
Liu X, Song S, Chen Z, Gao C, Li Y, Luo Y, Huang J, Zhang Z. Release of O-GlcNAc transferase inhibitor promotes neuronal differentiation of neural stem cells in 3D bioprinted supramolecular hydrogel scaffold for spinal cord injury repair. Acta Biomater 2022; 151:148-162. [PMID: 36002129 DOI: 10.1016/j.actbio.2022.08.031] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Revised: 08/11/2022] [Accepted: 08/15/2022] [Indexed: 02/07/2023]
Abstract
Precise fabrication of biomimetic three-dimensional (3D) structure and effective neuronal differentiation under the pathological environment are the key to neural stem cell (NSC)-based spinal cord injury (SCI) therapy. In this study, we have developed a spinal cord-like bioprinted scaffold loading with OSMI-4, a small molecule O-GlcNAc transferase (OGT) inhibitor, to induce and guide the neuron differentiation of NSCs for efficient SCI repair. To achieve this, we developed a supramolecular bioink (SM bioink) consisting of methacrylated gelatin and acrylated β-cyclodextrins to load NSCs and OSMI-4. This bioink showed fast gelation and stable mechanical properties, facilitating bioprinting of functional neural scaffolds. Moreover, the weak host-guest cross-linking of the SM scaffolds significantly improved the cell-matrix interaction for the infiltration and migration of NSCs. What's more, the sustained delivery of OSMI-4 remarkably enhanced the intrinsic neuronal differentiation of the encapsulated NSCs in vitro by inhibiting Notch signaling pathway. In vivo experiment further revealed that the functional bioprinted scaffolds promoted the neuronal regeneration and axonal growth, leading to significant locomotor recovery of the SCI model rats. Together, the NSC-laden bioprinted SM scaffolds in combination with sustained release of the therapeutic agent OSMI-4 largely induced neuronal differentiation of NSCs and thus leading to efficient SCI repair. STATEMENT OF SIGNIFICANCE: Efficient neuronal differentiation of neural stem cells (NSCs) under the complex pathological microenvironment of spinal cord injury (SCI) is a major challenge of neural regeneration. By the use of a supramolecular bioink, we bioprinted a spinal cord-like scaffold loaded with NSCs and a small molecule drug OSMI-4 to significantly induce neuronal differentiation of NSCs for efficient SCI repair in vivo. The scaffolds with spinal cord-like structure can support the interaction and neuronal differentiation of NSCs by providing a dynamic matrix and a source of molecular release of OSMI-4. The influences of OSMI-4 on NSCs and its molecular mechanism were investigated for the first time in this study. Altogether, three-dimensional bioprinting fabrication of NSC- and small molecule drug-laden biomimetic construct may represent a promising therapeutic strategy for SCI repair.
Collapse
Affiliation(s)
- Xiaoyun Liu
- CAS Key Laboratory of Nano-Bio Interface, Division of Nanobiomedicine, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, China; School of Nano-Tech and Nano-Bionics, University of Science and Technology of China, Hefei 230026, China
| | - Shaoshuai Song
- CAS Key Laboratory of Nano-Bio Interface, Division of Nanobiomedicine, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, China; School of Nano-Tech and Nano-Bionics, University of Science and Technology of China, Hefei 230026, China
| | - Zhongjin Chen
- CAS Key Laboratory of Nano-Bio Interface, Division of Nanobiomedicine, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, China; School of Nano-Tech and Nano-Bionics, University of Science and Technology of China, Hefei 230026, China
| | - Chen Gao
- CAS Key Laboratory of Nano-Bio Interface, Division of Nanobiomedicine, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, China; School of Nano-Tech and Nano-Bionics, University of Science and Technology of China, Hefei 230026, China
| | - Yuxuan Li
- CAS Key Laboratory of Nano-Bio Interface, Division of Nanobiomedicine, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, China; School of Nano-Tech and Nano-Bionics, University of Science and Technology of China, Hefei 230026, China
| | - Yu Luo
- Shanghai Engineering Research Center of Pharmaceutical Intelligent Equipment, Shanghai Frontiers Science Research Center for Druggability of Cardiovascular Non-coding RNA, Institute for Frontier Medical Technology, School of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai 201620, China
| | - Jie Huang
- CAS Key Laboratory of Nano-Bio Interface, Division of Nanobiomedicine, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, China; School of Nano-Tech and Nano-Bionics, University of Science and Technology of China, Hefei 230026, China.
| | - Zhijun Zhang
- CAS Key Laboratory of Nano-Bio Interface, Division of Nanobiomedicine, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, China; School of Nano-Tech and Nano-Bionics, University of Science and Technology of China, Hefei 230026, China.
| |
Collapse
|
5
|
Optogenetically Engineered Neurons Differentiated from Human SH-SY5Y Cells Survived and Expressed ChR2 in 3D Hydrogel. Biomedicines 2022; 10:biomedicines10071534. [PMID: 35884839 PMCID: PMC9313127 DOI: 10.3390/biomedicines10071534] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Revised: 06/20/2022] [Accepted: 06/25/2022] [Indexed: 11/25/2022] Open
Abstract
The cases of brain degenerative disease will rise as the human population ages. Current treatments have a transient effect and lack an investigative system that is physiologically relevant for testing. There is evidence suggesting optogenetic stimulation is a potential strategy; however, an in vitro disease and optogenetic model requires a three-dimensional microenvironment. Alginate is a promising material for tissue and optogenetic engineering. Although it is bioinert, alginate hydrogel is transparent and therefore allows optical penetration for stimulation. In this study, alginate was functionalized with arginine-glycine-aspartate acid (RGD) to serve as a 3D platform for encapsulation of human SH-SY5Y cells, which were optogenetically modified and characterized. The RGD-alginate hydrogels were tested for swelling and degradation. Prior to encapsulation, the cells were assessed for neuronal expression and optical-stimulation response. The results showed that RGD-alginate possessed a consistent swelling ratio of 18% on day 7, and degradation remained between 3.7−5% throughout 14 days. Optogenetically modified SH-SY5Y cells were highly viable (>85%) after lentiviral transduction and neuronal differentiation. The cells demonstrated properties of functional neurons, developing beta III tubulin (TuJ1)-positive long neurites, forming neural networks, and expressing vGlut2. Action potentials were produced upon optical stimulation. The neurons derived from human SH-SY5Y cells were successfully genetically modified and encapsulated; they survived and expressed ChR2 in an RGD-alginate hydrogel system.
Collapse
|
6
|
Liu X, Hao M, Chen Z, Zhang T, Huang J, Dai J, Zhang Z. 3D bioprinted neural tissue constructs for spinal cord injury repair. Biomaterials 2021; 272:120771. [PMID: 33798962 DOI: 10.1016/j.biomaterials.2021.120771] [Citation(s) in RCA: 104] [Impact Index Per Article: 34.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Revised: 03/10/2021] [Accepted: 03/18/2021] [Indexed: 12/15/2022]
Abstract
Three-dimensional (3D) bioprinting has emerged as a promising approach to fabricate living neural constructs with anatomically accurate complex geometries and spatial distributions of neural stem cells (NSCs) for spinal cord injury (SCI) repair. The NSC-laden 3D bioprinting, however, still faces some big challenges, such as cumbersome printing process, poor cell viability, and minimal cell-material interaction. To address these issues, we have fabricated NSC-laden scaffolds by 3D bioprinting and explore for the first time their application for in vivo SCI repair. In our strategy, we have developed a novel biocompatible bioink consisting of functional chitosan, hyaluronic acid derivatives, and matrigel. This bioink shows fast gelation (within 20 s) and spontaneous covalent crosslinking capability, facilitating convenient one-step bioprinting of spinal cord-like constructs. Thus-fabricated scaffolds maintain high NSC viability (about 95%), and offer a benign microenvironment that facilitates cell-material interactions and neuronal differentiation for optimal formation of neural network. The in vivo experiment has further demonstrated that the bioprinted scaffolds promoted the axon regeneration and decreased glial scar deposition, leading to significant locomotor recovery of the SCI model rats, which may represent a general and versatile strategy for precise engineering of central nervous system and other neural organs/tissues for regenerative medicine application.
Collapse
Affiliation(s)
- Xiaoyun Liu
- CAS Key Laboratory of Nano-Bio Interface, Division of Nanobiomedicine, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123, China; School of Nano-Tech and Nano-Bionics, University of Science and Technology of China, Hefei, 230026, China
| | - Mingming Hao
- I-lab, Key Laboratory of Multifunctional Nanomaterials and Smart Systems, Suzhou Institute of Nano-tech and Nanobionics, Chinese Academy of Sciences, Suzhou, 215123, China
| | - Zhongjin Chen
- CAS Key Laboratory of Nano-Bio Interface, Division of Nanobiomedicine, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123, China
| | - Ting Zhang
- I-lab, Key Laboratory of Multifunctional Nanomaterials and Smart Systems, Suzhou Institute of Nano-tech and Nanobionics, Chinese Academy of Sciences, Suzhou, 215123, China
| | - Jie Huang
- CAS Key Laboratory of Nano-Bio Interface, Division of Nanobiomedicine, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123, China; School of Nano-Tech and Nano-Bionics, University of Science and Technology of China, Hefei, 230026, China.
| | - Jianwu Dai
- CAS Key Laboratory of Nano-Bio Interface, Division of Nanobiomedicine, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123, China; State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, 100080, China
| | - Zhijun Zhang
- CAS Key Laboratory of Nano-Bio Interface, Division of Nanobiomedicine, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123, China; School of Nano-Tech and Nano-Bionics, University of Science and Technology of China, Hefei, 230026, China.
| |
Collapse
|
7
|
Jain R, Pal VK, Roy S. Triggering Supramolecular Hydrogelation Using a Protein–Peptide Coassembly Approach. Biomacromolecules 2020; 21:4180-4193. [DOI: 10.1021/acs.biomac.0c00984] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Rashmi Jain
- Institute of Nano Science and Technology, Habitat Centre, Phase 10, Sector 64, Mohali, Punjab 160062, India
| | - Vijay Kumar Pal
- Institute of Nano Science and Technology, Habitat Centre, Phase 10, Sector 64, Mohali, Punjab 160062, India
| | - Sangita Roy
- Institute of Nano Science and Technology, Habitat Centre, Phase 10, Sector 64, Mohali, Punjab 160062, India
| |
Collapse
|
8
|
Lei K, Sun Y, Sun C, Zhu D, Zheng Z, Wang X. Fabrication of a Controlled in Situ Forming Polypeptide Hydrogel with a Good Biological Compatibility and Shapeable Property. ACS APPLIED BIO MATERIALS 2019; 2:1751-1761. [DOI: 10.1021/acsabm.9b00157] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Kun Lei
- School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Yunlong Sun
- School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Chengyuan Sun
- School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Dandan Zhu
- School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Zhen Zheng
- School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Xinling Wang
- School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
- State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai 200240, China
| |
Collapse
|
9
|
Navarro-Tableros V, Gomez Y, Brizzi MF, Camussi G. Generation of Human Stem Cell-Derived Pancreatic Organoids (POs) for Regenerative Medicine. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2019; 1212:179-220. [PMID: 31025308 DOI: 10.1007/5584_2019_340] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Insulin-dependent diabetes mellitus or type 1 diabetes mellitus (T1DM) is an auto-immune condition characterized by the loss of pancreatic β-cells. The curative approach for highly selected patients is the pancreas or the pancreatic islet transplantation. Nevertheless, these options are limited by a growing shortage of donor organs and by the requirement of immunosuppression.Xenotransplantation of porcine islets has been extensively investigated. Nevertheless, the strong xenoimmunity and the risk of transmission of porcine endogenous retroviruses, have limited their application in clinic. Generation of β-like cells from stem cells is one of the most promising strategies in regenerative medicine. Embryonic, and more recently, adult stem cells are currently the most promising cell sources exploited to generate functional β-cells in vitro. A number of studies demonstrated that stem cells could generate functional pancreatic organoids (POs), able to restore normoglycemia when implanted in different preclinical diabetic models. Nevertheless, a gradual loss of function and cell dead are commonly detected when POs are transplanted in immunocompetent animals. So far, the main issue to be solved is the post-transplanted islet loss, due to the host immune attack. To avoid this hurdle, nanotechnology has provided a number of polymers currently under investigation for islet micro and macro-encapsulation. These new approaches, besides conferring PO immune protection, are able to supply oxygen and nutrients and to preserve PO morphology and long-term viability.Herein, we summarize the current knowledge on bioengineered POs and the stem cell differentiation platforms. We also discuss the in vitro strategies used to generate functional POs, and the protocols currently used to confer immune-protection against the host immune attack (micro- and macro-encapsulation). In addition, the most relevant ongoing clinical trials, and the most relevant hurdles met to move towards clinical application are revised.
Collapse
Affiliation(s)
- Victor Navarro-Tableros
- 2i3T Società per la gestione dell'incubatore di imprese e per il trasferimento tecnologico Scarl, University of Turin, Turin, Italy
| | - Yonathan Gomez
- Department of Medical Sciences, University of Turin, Turin, Italy
| | | | - Giovanni Camussi
- Department of Medical Sciences, University of Turin, Turin, Italy.
- Fondazione per la Ricerca Biomedica-ONLUS, Turin, Italy.
| |
Collapse
|
10
|
Stewart SA, Coulson MB, Zhou C, Burke NAD, Stöver HDH. Synthetic hydrogels formed by thiol-ene crosslinking of vinyl sulfone-functional poly(methyl vinyl ether-alt-maleic acid) with α,ω-dithio-polyethyleneglycol. SOFT MATTER 2018; 14:8317-8324. [PMID: 30288534 DOI: 10.1039/c8sm01066h] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Polymer hydrogels formed by rapid thiol-ene coupling of macromolecular gel formers can offer access to versatile new matrices. This paper describes the efficient synthesis of cysteamine vinyl sulfone (CVS) trifluoroacetate, and its incorporation into poly(methyl vinyl ether-alt-maleic anhydride) (PMMAn) to form a series of CVS-functionalized poly(methyl vinyl ether-alt-maleic acid) polymers (PMM-CVSx) containing 10 to 30 mol% pendant vinyl sulfone groups. Aqueous mixtures of these PMM-CVS and a dithiol crosslinker, α,ω-dithio-polyethyleneglycol (HS-PEG-SH, Mn = 1 kDa), gelled through crosslinking by Michael addition within seconds to minutes, depending on pH, degree of functionalization, and polymer loading. Gelation efficiency, Young's modulus, equilibrium swelling and hydrolytic stability are described, and step-wise hydrogel post-functionalization with a small molecule thiol, cysteamine, was demonstrated. Cytocompatibility of these crosslinked hydrogels towards entrapped 3T3 fibroblasts was confirmed using a live/dead fluorescence assay.
Collapse
Affiliation(s)
- S A Stewart
- Department of Chemistry and Chemical Biology, McMaster University, Hamilton, Ontario L8S 4M1, Canada.
| | - M B Coulson
- Department of Chemistry and Chemical Biology, McMaster University, Hamilton, Ontario L8S 4M1, Canada.
| | - C Zhou
- Department of Chemistry and Chemical Biology, McMaster University, Hamilton, Ontario L8S 4M1, Canada.
| | - N A D Burke
- Department of Chemistry and Chemical Biology, McMaster University, Hamilton, Ontario L8S 4M1, Canada.
| | - H D H Stöver
- Department of Chemistry and Chemical Biology, McMaster University, Hamilton, Ontario L8S 4M1, Canada.
| |
Collapse
|
11
|
Wu D, Xie X, Kadi AA, Zhang Y. Photosensitive peptide hydrogels as smart materials for applications. CHINESE CHEM LETT 2018. [DOI: 10.1016/j.cclet.2018.04.030] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
12
|
Tsuzuki T, Kabumoto M, Arakawa H, Ikeda M. The effect of carbohydrate structures on the hydrogelation ability and morphology of self-assembled structures of peptide-carbohydrate conjugates in water. Org Biomol Chem 2018; 15:4595-4600. [PMID: 28497834 DOI: 10.1039/c7ob00816c] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
We describe the construction of peptide-carbohydrate conjugates, namely glycopeptides, capable of self-assembling in water. We found that disaccharide structures (epimer or glycosidic-bond geometry) appended to the glycopeptides have a noticeable effect on the hydrogel formation ability as well as the morphology of the self-assembled structures. The soft materials consisting of self-assembled structures with carbohydrates on their surface and various types of morphologies might be useful as matrices to investigate the function of carbohydrates in biological events.
Collapse
Affiliation(s)
- Tomoya Tsuzuki
- Department of Life Science and Chemistry, Graduate School of Natural Science and Technology, Gifu University, 1-1 Yanagido, Gifu 501-1193, Japan.
| | | | | | | |
Collapse
|
13
|
Burek M, Wandzik I. Synthetic Hydrogels with Covalently Incorporated Saccharides Studied for Biomedical Applications – 15 Year Overview. POLYM REV 2018. [DOI: 10.1080/15583724.2018.1443122] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Małgorzata Burek
- Department of Organic Chemistry, Bioorganic Chemistry and Biotechnology, Faculty of Chemistry, Silesian University of Technology, B. Krzywoustego, Gliwice, Poland
- Biotechnology Center, Silesian University of Technology, B. Krzywoustego, Gliwice, Poland
| | - Ilona Wandzik
- Department of Organic Chemistry, Bioorganic Chemistry and Biotechnology, Faculty of Chemistry, Silesian University of Technology, B. Krzywoustego, Gliwice, Poland
- Biotechnology Center, Silesian University of Technology, B. Krzywoustego, Gliwice, Poland
| |
Collapse
|
14
|
Lee S, Serpooshan V, Tong X, Venkatraman S, Lee M, Lee J, Chirikian O, Wu JC, Wu SM, Yang F. Contractile force generation by 3D hiPSC-derived cardiac tissues is enhanced by rapid establishment of cellular interconnection in matrix with muscle-mimicking stiffness. Biomaterials 2017; 131:111-120. [PMID: 28384492 DOI: 10.1016/j.biomaterials.2017.03.039] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2016] [Revised: 03/23/2017] [Accepted: 03/24/2017] [Indexed: 02/07/2023]
Abstract
Engineering 3D human cardiac tissues is of great importance for therapeutic and pharmaceutical applications. As cardiac tissue substitutes, extracellular matrix-derived hydrogels have been widely explored. However, they exhibit premature degradation and their stiffness is often orders of magnitude lower than that of native cardiac tissue. There are no reports on establishing interconnected cardiomyocytes in 3D hydrogels at physiologically-relevant cell density and matrix stiffness. Here we bioengineer human cardiac microtissues by encapsulating human induced pluripotent stem cell-derived cardiomyocytes (hiPSC-CMs) in chemically-crosslinked gelatin hydrogels (1.25 × 108/mL) with tunable stiffness and degradation. In comparison to the cells in high stiffness (16 kPa)/slow degrading hydrogels, hiPSC-CMs in low stiffness (2 kPa)/fast degrading and intermediate stiffness (9 kPa)/intermediate degrading hydrogels exhibit increased intercellular network formation, α-actinin and connexin-43 expression, and contraction velocity. Only the 9 kPa microtissues exhibit organized sarcomeric structure and significantly increased contractile stress. This demonstrates that muscle-mimicking stiffness together with robust cellular interconnection contributes to enhancement in sarcomeric organization and contractile function of the engineered cardiac tissue. This study highlights the importance of intercellular connectivity, physiologically-relevant cell density, and matrix stiffness to best support 3D cardiac tissue engineering.
Collapse
Affiliation(s)
- Soah Lee
- Department of Materials Science and Engineering, Stanford University, Stanford, CA, USA
| | - Vahid Serpooshan
- Stanford Cardiovascular Institute, Stanford University School of Medicine, Stanford, CA, USA
| | - Xinming Tong
- Department of Orthopedic Surgery, Stanford, CA, USA
| | - Sneha Venkatraman
- Stanford Cardiovascular Institute, Stanford University School of Medicine, Stanford, CA, USA; Biology Program, California State University Channel Islands, Camarillo, CA, USA
| | - Meelim Lee
- Department of Bioengineering, Stanford University, Stanford, CA, USA
| | - Jaecheol Lee
- Stanford Cardiovascular Institute, Stanford University School of Medicine, Stanford, CA, USA; Institute of Stem Cell Biology and Regenerative Medicine, Stanford, CA, USA; Department of Medicine, Division of Cardiovascular Medicine, Stanford University, Stanford, CA, USA
| | - Orlando Chirikian
- Stanford Cardiovascular Institute, Stanford University School of Medicine, Stanford, CA, USA; Biology Program, California State University Channel Islands, Camarillo, CA, USA
| | - Joseph C Wu
- Stanford Cardiovascular Institute, Stanford University School of Medicine, Stanford, CA, USA; Institute of Stem Cell Biology and Regenerative Medicine, Stanford, CA, USA; Department of Medicine, Division of Cardiovascular Medicine, Stanford University, Stanford, CA, USA
| | - Sean M Wu
- Stanford Cardiovascular Institute, Stanford University School of Medicine, Stanford, CA, USA; Institute of Stem Cell Biology and Regenerative Medicine, Stanford, CA, USA; Department of Medicine, Division of Cardiovascular Medicine, Stanford University, Stanford, CA, USA.
| | - Fan Yang
- Department of Orthopedic Surgery, Stanford, CA, USA; Department of Bioengineering, Stanford University, Stanford, CA, USA.
| |
Collapse
|
15
|
Glycosaminoglycans (GAGs) and GAG mimetics regulate the behavior of stem cell differentiation. Colloids Surf B Biointerfaces 2017; 150:175-182. [DOI: 10.1016/j.colsurfb.2016.11.022] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2016] [Accepted: 11/18/2016] [Indexed: 11/19/2022]
|
16
|
Liu L, Pei Y, He C, Chen L. Synthesis of novel thermo- and redox-sensitive polypeptide hydrogels. POLYM INT 2017. [DOI: 10.1002/pi.5313] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Lin Liu
- Department of Chemistry; Northeast Normal University; Changchun 130024 PR China
| | - Yueting Pei
- Department of Chemistry; Northeast Normal University; Changchun 130024 PR China
| | - Chaoliang He
- Changchun Institute of Applied Chemistry; Chinese Academy of Sciences; Changchun 130022 PR China
| | - Li Chen
- Department of Chemistry; Northeast Normal University; Changchun 130024 PR China
| |
Collapse
|
17
|
Tabasum S, Noreen A, Kanwal A, Zuber M, Anjum MN, Zia KM. Glycoproteins functionalized natural and synthetic polymers for prospective biomedical applications: A review. Int J Biol Macromol 2017; 98:748-776. [PMID: 28111295 DOI: 10.1016/j.ijbiomac.2017.01.078] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2016] [Revised: 01/05/2017] [Accepted: 01/16/2017] [Indexed: 02/06/2023]
Abstract
Glycoproteins have multidimensional properties such as biodegradability, biocompatibility, non-toxicity, antimicrobial and adsorption properties; therefore, they have wide range of applications. They are blended with different polymers such as chitosan, carboxymethyl cellulose (CMC), polyvinyl pyrrolidone (PVP), polycaprolactone (PCL), heparin, polystyrene fluorescent nanoparticles (PS-NPs) and carboxyl pullulan (PC) to improve their properties like thermal stability, mechanical properties, resistance to pH, chemical stability and toughness. Considering the versatile charateristics of glycoprotein based polymers, this review sheds light on synthesis and characterization of blends and composites of glycoproteins, with natural and synthetic polymers and their potential applications in biomedical field such as drug delivery system, insulin delivery, antimicrobial wound dressing uses, targeting of cancer cells, development of anticancer vaccines, development of new biopolymers, glycoproteome research, food product and detection of dengue glycoproteins. All the technical scientific issues have been addressed; highlighting the recent advancement.
Collapse
Affiliation(s)
- Shazia Tabasum
- Institute of Chemistry, Government College University, Faisalabad 38030, Pakistan
| | - Aqdas Noreen
- Institute of Chemistry, Government College University, Faisalabad 38030, Pakistan
| | - Arooj Kanwal
- Institute of Chemistry, Government College University, Faisalabad 38030, Pakistan
| | - Mohammad Zuber
- Institute of Chemistry, Government College University, Faisalabad 38030, Pakistan
| | | | - Khalid Mahmood Zia
- Institute of Chemistry, Government College University, Faisalabad 38030, Pakistan.
| |
Collapse
|
18
|
Huang J, Fu H, Wang Z, Meng Q, Liu S, Wang H, Zheng X, Dai J, Zhang Z. BMSCs-laden gelatin/sodium alginate/carboxymethyl chitosan hydrogel for 3D bioprinting. RSC Adv 2016. [DOI: 10.1039/c6ra24231f] [Citation(s) in RCA: 70] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Gelatin/sodium alginate/carboxymethyl chitosan hydrogel mixed with bone mesenchymal stem cells for 3D bioprinting.
Collapse
Affiliation(s)
- Jie Huang
- Key Laboratory of Nano-Bio Interface
- Division of Nanobiomedicine
- CAS Center for Excellence in Nanoscience
- Suzhou Institute of Nano-Tech and Nano-Bionics
- Chinese Academy of Sciences
| | - Han Fu
- Key Laboratory of Nano-Bio Interface
- Division of Nanobiomedicine
- CAS Center for Excellence in Nanoscience
- Suzhou Institute of Nano-Tech and Nano-Bionics
- Chinese Academy of Sciences
| | - Zhiying Wang
- Key Laboratory of Nano-Bio Interface
- Division of Nanobiomedicine
- CAS Center for Excellence in Nanoscience
- Suzhou Institute of Nano-Tech and Nano-Bionics
- Chinese Academy of Sciences
| | - Qingyuan Meng
- State Key Laboratory of Molecular Developmental Biology
- Institute of Genetics and Developmental Biology
- Chinese Academy of Sciences
- Beijing 100190
- P. R. China
| | - Sumei Liu
- State Key Laboratory of Molecular Developmental Biology
- Institute of Genetics and Developmental Biology
- Chinese Academy of Sciences
- Beijing 100190
- P. R. China
| | - Heran Wang
- State Key Laboratory of Robotics
- Shenyang Institute of Automation
- Chinese Academy of Sciences
- Shenyang 110016
- P. R. China
| | - Xiongfei Zheng
- State Key Laboratory of Robotics
- Shenyang Institute of Automation
- Chinese Academy of Sciences
- Shenyang 110016
- P. R. China
| | - Jianwu Dai
- Key Laboratory of Nano-Bio Interface
- Division of Nanobiomedicine
- CAS Center for Excellence in Nanoscience
- Suzhou Institute of Nano-Tech and Nano-Bionics
- Chinese Academy of Sciences
| | - Zhijun Zhang
- Key Laboratory of Nano-Bio Interface
- Division of Nanobiomedicine
- CAS Center for Excellence in Nanoscience
- Suzhou Institute of Nano-Tech and Nano-Bionics
- Chinese Academy of Sciences
| |
Collapse
|
19
|
Enhanced Cellular Activity in Gelatin-Poly(Ethylene Glycol) Hydrogels without Compromising Gel Stiffness. Macromol Biosci 2015; 16:334-40. [DOI: 10.1002/mabi.201500327] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2015] [Revised: 10/08/2015] [Indexed: 12/17/2022]
|
20
|
Directed osteogenic differentiation of mesenchymal stem cell in three-dimensional biodegradable methylcellulose-based scaffolds. Colloids Surf B Biointerfaces 2015; 135:332-338. [DOI: 10.1016/j.colsurfb.2015.07.062] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2015] [Revised: 06/18/2015] [Accepted: 07/22/2015] [Indexed: 12/20/2022]
|
21
|
Biocompatible Hydrogels for Microarray Cell Printing and Encapsulation. BIOSENSORS-BASEL 2015; 5:647-63. [PMID: 26516921 PMCID: PMC4697138 DOI: 10.3390/bios5040647] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/28/2015] [Revised: 10/21/2015] [Accepted: 10/22/2015] [Indexed: 12/18/2022]
Abstract
Conventional drug screening processes are a time-consuming and expensive endeavor, but highly rewarding when they are successful. To identify promising lead compounds, millions of compounds are traditionally screened against therapeutic targets on human cells grown on the surface of 96-wells. These two-dimensional (2D) cell monolayers are physiologically irrelevant, thus, often providing false-positive or false-negative results, when compared to cells grown in three-dimensional (3D) structures such as hydrogel droplets. However, 3D cell culture systems are not easily amenable to high-throughput screening (HTS), thus inherently low throughput, and requiring relatively large volume for cell-based assays. In addition, it is difficult to control cellular microenvironments and hard to obtain reliable cell images due to focus position and transparency issues. To overcome these problems, miniaturized 3D cell cultures in hydrogels were developed via cell printing techniques where cell spots in hydrogels can be arrayed on the surface of glass slides or plastic chips by microarray spotters and cultured in growth media to form cells encapsulated 3D droplets for various cell-based assays. These approaches can dramatically reduce assay volume, provide accurate control over cellular microenvironments, and allow us to obtain clear 3D cell images for high-content imaging (HCI). In this review, several hydrogels that are compatible to microarray printing robots are discussed for miniaturized 3D cell cultures.
Collapse
|
22
|
Injectable hydrogels derived from phosphorylated alginic acid calcium complexes. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2015; 51:139-47. [DOI: 10.1016/j.msec.2015.02.031] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/26/2014] [Revised: 01/28/2015] [Accepted: 02/23/2015] [Indexed: 01/12/2023]
|
23
|
Chai Q, Huang Y, Ayres N. Shape memory biomaterials prepared from polyurethane/ureas containing sulfated glucose. ACTA ACUST UNITED AC 2015. [DOI: 10.1002/pola.27668] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Qinyuan Chai
- Department of Chemistry; The University of Cincinnati; Cincinnati Ohio 45221-0172
| | - Yongshun Huang
- Department of Chemistry; The University of Cincinnati; Cincinnati Ohio 45221-0172
| | - Neil Ayres
- Department of Chemistry; The University of Cincinnati; Cincinnati Ohio 45221-0172
| |
Collapse
|
24
|
Dextran-based hydrogel formed by thiol-Michael addition reaction for 3D cell encapsulation. Colloids Surf B Biointerfaces 2015; 128:140-148. [DOI: 10.1016/j.colsurfb.2015.02.005] [Citation(s) in RCA: 64] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2014] [Revised: 01/31/2015] [Accepted: 02/02/2015] [Indexed: 12/17/2022]
|
25
|
Bakaic E, Smeets NMB, Hoare T. Injectable hydrogels based on poly(ethylene glycol) and derivatives as functional biomaterials. RSC Adv 2015. [DOI: 10.1039/c4ra13581d] [Citation(s) in RCA: 117] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
The design criteria for injectable, in situ-gelling hydrogels are reviewed in conjunction with highlights on recent progress in the preparation of injectable PEG and PEG-analogue poly(oligoethylene glycol methacrylate) (POEGMA) hydrogels.
Collapse
Affiliation(s)
- Emilia Bakaic
- Department of Chemical Engineering
- McMaster University
- Hamilton
- Canada
| | | | - Todd Hoare
- Department of Chemical Engineering
- McMaster University
- Hamilton
- Canada
| |
Collapse
|
26
|
Introduction to In Situ Forming Hydrogels for Biomedical Applications. IN-SITU GELLING POLYMERS 2015. [DOI: 10.1007/978-981-287-152-7_2] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
|
27
|
Vazhayal L, Kumar Sasidharan N, Talasila S, Kumar DBS, Solaiappan A. Supramolecular association of 2D alumino-siloxane aquagel building blocks to 3D porous cages and its efficacy for topical and injectable delivery of fluconazole, an antifungal drug. J Mater Chem B 2015; 3:5978-5990. [DOI: 10.1039/c5tb00625b] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A fascinating 2D architecture of an alumino-siloxane gel self-assembled into a well-defined 3D porous aquagel cage. It is identified to be an excellently mechanically stable, injectable and non-cytotoxic medium for drug delivery applications.
Collapse
Affiliation(s)
- Linsha Vazhayal
- Functional Materials Section
- Materials Science and Technology Division
- Council of Scientific and Industrial Research-National Institute for Interdisciplinary Science and Technology (CSIR-NIIST)
- Thiruvananthapuram-695019
- India
| | - Nishanth Kumar Sasidharan
- Agroprocessing and Natural Products Division
- Council of Scientific and Industrial Research-National Institute for Interdisciplinary Science and Technology (CSIR-NIIST)
- Thiruvananthapuram-695019
- India
| | - Sindhoor Talasila
- K. M. College of Pharmacy
- Department of Pharmaceutics
- Madurai-625107
- India
| | - Dileep B. S. Kumar
- Agroprocessing and Natural Products Division
- Council of Scientific and Industrial Research-National Institute for Interdisciplinary Science and Technology (CSIR-NIIST)
- Thiruvananthapuram-695019
- India
| | - Ananthakumar Solaiappan
- Functional Materials Section
- Materials Science and Technology Division
- Council of Scientific and Industrial Research-National Institute for Interdisciplinary Science and Technology (CSIR-NIIST)
- Thiruvananthapuram-695019
- India
| |
Collapse
|
28
|
Pradny M, Vetrik M, Hruby M, Michalek J. Biodegradable Porous Hydrogels. Adv Healthc Mater 2014. [DOI: 10.1002/9781118774205.ch8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|
29
|
Microfluidics assisted generation of innovative polysaccharide hydrogel microparticles. Carbohydr Polym 2014; 116:189-99. [PMID: 25458289 DOI: 10.1016/j.carbpol.2014.01.083] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2013] [Revised: 01/20/2014] [Accepted: 01/24/2014] [Indexed: 11/21/2022]
Abstract
Capillary flow-based approach such as microfluidic devices offer a number of advantages over conventional flow control technology because they ensure highly versatile geometry and can be used to produce monodisperse spherical and non-spherical polymeric microparticles. Based on the principle of a flow-focusing device to emulsify the coflow of aqueous solutions in an organic phase, we were able to produce the following innovative polysaccharide hydrogel microparticles: - Janus hydrogel microparticles made of pectin–pectin (homo Janus) and pectin–alginate (hetero Janus) were produced. The efficiency of separation of the two hemispheres was investigated by confocal scanning laser microscopy (CSLM) of previously labelled biopolymers. The Janus structure was confirmed by subjecting each microparticle hemisphere to specific enzymatic degradation. As a proof of concept, free BSA or BSA grafted with dextran, were encapsulated in each hemisphere of the hetero Janus hydrogel microparticles. While BSA, free or grafted with dextran, was always confined in the alginate hemisphere, a fraction of BSA diffused from the pectin to the alginate hemisphere. Methoxy groups along the pectin chain will be responsible of the decrease of the number of attractive electrostatic interactions occurring between amino groups of BSA and carboxylic groups of pectin. - Pectin hydrogel microparticles of complex shapes were successfully produced by combining on-chip the phenomenon of gelation and water diffusion induced self-assembly, using dimethyl carbonate as continuous phase, or by deformation of the pre-gelled droplets off-chip at a fluid–fluid interface. Sphere, oblate ellipsoid, torus or mushroom-type morphologies were thus obtained. Moreover, it was established that after crossing the interface during their collect, mushroom-type microparticles did not migrate in the calcium or DMC phase but stayed at the liquid–liquid interface. These new and original hydrogel microparticles will open up opportunities for studying relationships between combined enzymatic hydrolysis and active release for Janus particles and relationships between shape and swelling behaviour for anisotropic pectin microparticles.
Collapse
|
30
|
Patenaude M, Smeets NMB, Hoare T. Designing Injectable, Covalently Cross-Linked Hydrogels for Biomedical Applications. Macromol Rapid Commun 2014; 35:598-617. [DOI: 10.1002/marc.201300818] [Citation(s) in RCA: 130] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2013] [Revised: 12/11/2013] [Indexed: 12/22/2022]
Affiliation(s)
- Mathew Patenaude
- Department of Chemical Engineering; McMaster University; 1280 Main St. W. Hamilton Ontario Canada L8S 4L7
| | - Niels M. B. Smeets
- Department of Chemical Engineering; McMaster University; 1280 Main St. W. Hamilton Ontario Canada L8S 4L7
| | - Todd Hoare
- Associate Professor, Department of Chemical Engineering; McMaster University; 1280 Main St. W. Hamilton Ontario Canada L8S 4L7
| |
Collapse
|
31
|
Collagen hydrogels incorporated with surface-aminated mesoporous nanobioactive glass: Improvement of physicochemical stability and mechanical properties is effective for hard tissue engineering. Acta Biomater 2013; 9:9508-21. [PMID: 23928332 DOI: 10.1016/j.actbio.2013.07.036] [Citation(s) in RCA: 122] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2013] [Revised: 07/20/2013] [Accepted: 07/30/2013] [Indexed: 11/22/2022]
Abstract
Collagen (Col) hydrogels have poor physicochemical and mechanical properties and are susceptible to substantial shrinkage during cell culture, which limits their potential applications in hard tissue engineering. Here, we developed novel nanocomposite hydrogels made of collagen and mesoporous bioactive glass nanoparticles (mBGns) with surface amination, and addressed the effects of mBGn addition (Col:mBG = 2:1, 1:1 and 1:2) and its surface amination on the physicochemical and mechanical properties of the hydrogels. The amination of mBGn was shown to enable chemical bonding with collagen molecules. As a result, the nanocomposite hydrogels exhibited a significantly improved physicochemical and mechanical stability. The hydrolytic and enzymatic degradation of the Col-mBGn hydrogels were slowed down due to the incorporation of mBGn and its surface amination. The mechanical properties of the hydrogels, specifically the resistance to loading as well as the stiffness, significantly increased with the addition of mBGn and its aminated form, as assessed by a dynamic mechanical analysis. Mesenchymal stem cells cultivated within the Col-mBGn hydrogels were highly viable, with enhanced cytoskeletal extensions, due to the addition of surface aminated mBGn. While the Col hydrogel showed extensive shrinkage (down to ∼20% of initial size) during a few days of culture, the shrinkage of the mBGn-added hydrogel was substantially reduced, and the aminated mBGn-added hydrogel had no observable shrinkage over 21 days. Results demonstrated the effective roles of aminated mBGn in significantly improving the physicochemical and mechanical properties of Col hydrogel, which are ultimately favorable for applications in stem cell culture for bone tissue engineering.
Collapse
|
32
|
Urakami H, Hentschel J, Seetho K, Zeng H, Chawla K, Guan Z. Surfactant-free synthesis of biodegradable, biocompatible, and stimuli-responsive cationic nanogel particles. Biomacromolecules 2013; 14:3682-8. [PMID: 24047127 DOI: 10.1021/bm401039r] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Nanogels have attracted much attention lately because of their many potential applications, including as nanocarriers for drug and gene delivery. Most nanogels reported previously, however, are not biodegradable, and their synthesis often requires the use of surfactants. Herein we report a surfactant-free method for the preparation of biodegradable, biocompatible, and stimuli-responsive cationic nanogels. The nanogels were synthesized by simply coaservating linear polymer precursors in mixed solvents followed by in situ cross-linking with homobifunctional cross-linkers. The versatility of this approach has been demonstrated by employing two different polymers and various cross-linkers to prepare nanogel particles with diameters ranging from 170 to 220 nm. Specifically, disulfide-containing tetralysine (TetK)- and oligoethylenimine (OEI)-based prepolymers were prepared and the subsequent nanogels were formed by covalently cross-linking the polymer coacervate phase. Nanogel particles are responsive to pH changes, increasing in size and zeta-potential with concomitant lowering of solution pH. Furthermore, as revealed by AFM imaging, nanogel particles were degradable in the presence of glutathione at concentrations similar to those in intracellular environment (10 mM). Both the nanogel and the polymer precursors were determined to exhibit minimal cytotoxicity against fibroblast 3T3 cells by flow cytometric analyses and fluorescent imaging. This study demonstrates a new surfactant-free method for preparing biodegradable, biocompatible, and stimuli-responsive nanogels as potential nanocarriers for the delivery of drugs and genes.
Collapse
Affiliation(s)
- Hiromitsu Urakami
- Department of Chemistry, University of California , 1102 Natural Sciences 2, Irvine, California 92697-2025, United States
| | | | | | | | | | | |
Collapse
|
33
|
Wang W, Deng L, Huang P, Xu S, Li X, Lv N, Wang L, Hu R, Zhang J, Dong A. Toxicity andin vivobiological effect of the nanoparticular self-supported hydrogel of a thermosensitive copolymer for non-invasive drug delivery. J Biomed Mater Res A 2013; 102:17-29. [DOI: 10.1002/jbm.a.34694] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2012] [Revised: 02/19/2013] [Accepted: 02/21/2013] [Indexed: 01/31/2023]
Affiliation(s)
- Weiwei Wang
- Department of polymer science and engineering; School of Chemical Engineering and Technology, Tianjin University; Tianjin 300072 China
| | - Liandong Deng
- Department of polymer science and engineering; School of Chemical Engineering and Technology, Tianjin University; Tianjin 300072 China
| | - Pingsheng Huang
- Department of polymer science and engineering; School of Chemical Engineering and Technology, Tianjin University; Tianjin 300072 China
| | - Shuxin Xu
- Department of polymer science and engineering; School of Chemical Engineering and Technology, Tianjin University; Tianjin 300072 China
| | - Xu Li
- Tianjin Institute of Medical and Pharmaceutical Science; Tianjin 300020 China
| | - Nan Lv
- Tianjin Institute of Medical and Pharmaceutical Science; Tianjin 300020 China
| | - Lei Wang
- Tianjin Institute of Medical and Pharmaceutical Science; Tianjin 300020 China
| | - Renjie Hu
- Tianjin Institute of Medical and Pharmaceutical Science; Tianjin 300020 China
| | - Jianhua Zhang
- Department of polymer science and engineering; School of Chemical Engineering and Technology, Tianjin University; Tianjin 300072 China
| | - Anjie Dong
- Department of polymer science and engineering; School of Chemical Engineering and Technology, Tianjin University; Tianjin 300072 China
- Key Laboratory of Systems Bioengineering; Ministry of Education of China; Tianjin 300072 China
| |
Collapse
|
34
|
Huang H, Ding Y, Sun XS, Nguyen TA. Peptide hydrogelation and cell encapsulation for 3D culture of MCF-7 breast cancer cells. PLoS One 2013; 8:e59482. [PMID: 23527204 PMCID: PMC3603912 DOI: 10.1371/journal.pone.0059482] [Citation(s) in RCA: 76] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2012] [Accepted: 02/14/2013] [Indexed: 01/15/2023] Open
Abstract
Three-dimensional (3D) cell culture plays an invaluable role in tumor biology by providing in vivo like microenviroment and responses to therapeutic agents. Among many established 3D scaffolds, hydrogels demonstrate a distinct property as matrics for 3D cell culture. Most of the existing pre-gel solutions are limited under physiological conditions such as undesirable pH or temperature. Here, we report a peptide hydrogel that shows superior physiological properties as an in vitro matrix for 3D cell culture. The 3D matrix can be accomplished by mixing a self-assembling peptide directly with a cell culture medium without any pH or temperature adjustment. Results of dynamic rheological studies showed that this hydrogel can be delivered multiple times via pipetting without permanently destroying the hydrogel architecture, indicating the deformability and remodeling ability of the hydrogel. Human epithelial cancer cells, MCF-7, are encapsulated homogeneously in the hydrogel matrix during hydrogelation. Compared with two-dimensional (2D) monolayer culture, cells residing in the hydrogel matrix grow as tumor-like clusters in 3D formation. Relevant parameters related to cell morphology, survival, proliferation, and apoptosis were analyzed using MCF-7 cells in 3D hydrogels. Interestingly, treatment of cisplatin, an anti-cancer drug, can cause a significant decrease of cell viability of MCF-7 clusters in hydrogels. The responses to cisplatin were dose- and time-dependent, indicating the potential usage of hydrogels for drug testing. Results of confocal microscopy and Western blotting showed that cells isolated from hydrogels are suitable for downstream proteomic analysis. The results provided evidence that this peptide hydrogel is a promising 3D cell culture material for drug testing.
Collapse
Affiliation(s)
- Hongzhou Huang
- Department of Grain Science and Industry, Kansas State University, Manhattan, Kansas, United States of America
| | - Ying Ding
- Department of Biochemistry, Kansas State University, Manhattan, Kansas, United States of America
| | - Xiuzhi S. Sun
- Department of Grain Science and Industry, Kansas State University, Manhattan, Kansas, United States of America
- * E-mail: (XSS); (TAN)
| | - Thu A. Nguyen
- Department of Diagnostic Medicine/Pathobiology, Kansas State University, Manhattan, Kansas, United States of America
- * E-mail: (XSS); (TAN)
| |
Collapse
|
35
|
Liao SW, Rawson J, Omori K, Ishiyama K, Mozhdehi D, Oancea AR, Ito T, Guan Z, Mullen Y. Maintaining functional islets through encapsulation in an injectable saccharide-peptide hydrogel. Biomaterials 2013; 34:3984-3991. [PMID: 23465491 DOI: 10.1016/j.biomaterials.2013.02.007] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2012] [Accepted: 02/01/2013] [Indexed: 12/31/2022]
Abstract
Islet transplantation offers a promising treatment for type 1 diabetes (T1D). However, a major hurdle in this treatment is the rapid loss of functional islets during culture and after transplantation. The liver site, currently utilized for transplantation, is suboptimal for achieving long-term insulin independence due to a rapid islet loss followed by a chronic decline in islet function after transplantation. Herein, we report a synthetic saccharide-peptide (SP) hydrogel that allows suspending islets in liquid and injecting for in situ polymerization without forming islet clumps, indicating its potential in extrahepatic islet transplantation. In vitro, rat islets in SP hydrogel maintained a 3D structure and high glucose-stimulated insulin release similar to that observed in freshly isolated islets for 4 weeks, while control islets cultured in suspension lost their 3D structure and insulin release responses by 2 weeks. Biocompatibility of SP hydrogel was shown by the absence of cytokine mRNA activation in peripheral blood mononuclear cells (PBMCs) exposed to hydrogel in vitro and by the absence of cellular infiltrates in and around the hydrogel implanted subcutaneously. Syngeneic Lewis rat islets transplanted in SP hydrogel in various extrahepatic sites stained strongly for insulin, and more effectively reversed diabetes than unencapsulated islets when transplanted in an omental pocket. In conclusion, the SP hydrogel is non-cytotoxic and supports normal islet structure and function both in vitro and in vivo. Specifically, the ability of the hydrogel to separate individual islets after transplantation is important for maintaining their function in vivo. This important property, combined with the versatility and biocompatibility, makes our SP hydrogel a promising synthetic scaffold that can facilitate transplantation of organized heterogeneous cells to preserve their micro-structure and function.
Collapse
Affiliation(s)
- Sophia W Liao
- Southern California Islet Cell Resources Center, Department of Diabetes, Endocrinology and Metabolism, Beckman Research Institute of the City of Hope, 1500 E. Duarte Road, Duarte, CA 91010, USA
| | - Jeffrey Rawson
- Southern California Islet Cell Resources Center, Department of Diabetes, Endocrinology and Metabolism, Beckman Research Institute of the City of Hope, 1500 E. Duarte Road, Duarte, CA 91010, USA
| | - Keiko Omori
- Southern California Islet Cell Resources Center, Department of Diabetes, Endocrinology and Metabolism, Beckman Research Institute of the City of Hope, 1500 E. Duarte Road, Duarte, CA 91010, USA
| | - Kohei Ishiyama
- Southern California Islet Cell Resources Center, Department of Diabetes, Endocrinology and Metabolism, Beckman Research Institute of the City of Hope, 1500 E. Duarte Road, Duarte, CA 91010, USA
| | - Davoud Mozhdehi
- Department of Chemistry, University of California, 1102 Natural Sciences II, Irvine 92606, USA
| | - Alina R Oancea
- Southern California Islet Cell Resources Center, Department of Diabetes, Endocrinology and Metabolism, Beckman Research Institute of the City of Hope, 1500 E. Duarte Road, Duarte, CA 91010, USA
| | - Taihei Ito
- Southern California Islet Cell Resources Center, Department of Diabetes, Endocrinology and Metabolism, Beckman Research Institute of the City of Hope, 1500 E. Duarte Road, Duarte, CA 91010, USA
| | - Zhibin Guan
- Department of Chemistry, University of California, 1102 Natural Sciences II, Irvine 92606, USA.
| | - Yoko Mullen
- Southern California Islet Cell Resources Center, Department of Diabetes, Endocrinology and Metabolism, Beckman Research Institute of the City of Hope, 1500 E. Duarte Road, Duarte, CA 91010, USA.
| |
Collapse
|
36
|
Hybrid Block Copolymers Constituted by Peptides and Synthetic Polymers: An Overview of Synthetic Approaches, Supramolecular Behavior and Potential Applications. Polymers (Basel) 2013. [DOI: 10.3390/polym5010188] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
|
37
|
Koehler KC, Anseth KS, Bowman CN. Diels–Alder Mediated Controlled Release from a Poly(ethylene glycol) Based Hydrogel. Biomacromolecules 2013; 14:538-47. [DOI: 10.1021/bm301789d] [Citation(s) in RCA: 108] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Kenneth Christopher Koehler
- Department
of Chemical and Biological Engineering and the ‡Howard Hughes Medical Institute, University of Colorado−Boulder, 3415 Colorado Avenue, UCB 596 JSC Biotech Building 530, Boulder,
Colorado 80303-0596, United States
| | - Kristi S. Anseth
- Department
of Chemical and Biological Engineering and the ‡Howard Hughes Medical Institute, University of Colorado−Boulder, 3415 Colorado Avenue, UCB 596 JSC Biotech Building 530, Boulder,
Colorado 80303-0596, United States
| | - Christopher N. Bowman
- Department
of Chemical and Biological Engineering and the ‡Howard Hughes Medical Institute, University of Colorado−Boulder, 3415 Colorado Avenue, UCB 596 JSC Biotech Building 530, Boulder,
Colorado 80303-0596, United States
| |
Collapse
|
38
|
Sbrana F, Fotia C, Bracalello A, Baldini N, Marletta G, Ciapetti G, Bochicchio B, Vassalli M. Multiscale characterization of a chimeric biomimetic polypeptide for stem cell culture. BIOINSPIRATION & BIOMIMETICS 2012; 7:046007. [PMID: 22917962 DOI: 10.1088/1748-3182/7/4/046007] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Mesenchymal stem cells have attracted great interest in the field of tissue engineering and regenerative medicine because of their multipotentiality and relative ease of isolation from adult tissues. The medical application of this cellular system requires the inclusion in a growth and delivery scaffold that is crucial for the clinical effectiveness of the therapy. In particular, the ideal scaffolding material should have the needed porosity and mechanical strength to allow a good integration with the surrounding tissues, but it should also assure high biocompatibility and full resorbability. For such a purpose, protein-inspired biomaterials and, in particular, elastomeric-derived polypeptides are playing a major role, in which they are expected to fulfil many of the biological and mechanical requirements. A specific chimeric protein, designed starting from elastin, resilin and collagen sequences, was characterized over different length scales. Single-molecule mechanics, aggregation properties and compatibility with human mesenchymal stem cells were tested, showing that the engineered compound is a good candidate as a stem cell scaffold to be used in tissue engineering applications.
Collapse
Affiliation(s)
- F Sbrana
- Institute of Biophysics, National Research Council, Genova, Italy
| | | | | | | | | | | | | | | |
Collapse
|
39
|
McGann CL, Levenson EA, Kiick KL. Resilin-Based Hybrid Hydrogels for Cardiovascular Tissue Engineering. Macromolecules 2012; 214:203-213. [PMID: 23956463 DOI: 10.1002/macp.201200412] [Citation(s) in RCA: 69] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
The outstanding elastomeric properties of natural resilin, an insect protein, have motivated the engineering of resilin-like polypeptides (RLPs) as a potential material for cardiovascular tissue engineering. The RLPs, which incorporate biofunctional domains for cell-matrix interactions, are cross-linked into RLP-PEG hybrid hydrogels via a Michael-type addition of cysteine residues on the RLP with vinyl sulfones of an end-functionalized multi-arm star PEG. Oscillatory rheology indicated the useful mechanical properties of these materials. Assessments of cell viability via con-focal microscopy clearly show the successful encapsulation of human aortic adventitial fibroblasts in the three-dimensional matrices and the adoption of a spread morphology following 7 days of culture.
Collapse
Affiliation(s)
- Christopher L McGann
- Department of Materials Science and Engineering, University of Delaware, Newark, DE 19716, USA
| | | | | |
Collapse
|
40
|
|
41
|
Chawla K, Yu TB, Stutts L, Yen M, Guan Z. Modulation of chondrocyte behavior through tailoring functional synthetic saccharide-peptide hydrogels. Biomaterials 2012; 33:6052-60. [PMID: 22672831 DOI: 10.1016/j.biomaterials.2012.04.058] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2012] [Accepted: 04/30/2012] [Indexed: 01/22/2023]
Abstract
Tailoring three-dimensional (3D) biomaterial environments to provide specific cues in order to modulate function of encapsulated cells could potentially eliminate the need for addition of exogenous cues in cartilage tissue engineering. We recently developed saccharide-peptide copolymer hydrogels for cell culture and tissue engineering applications. In this study, we aim to tailor our saccharide-peptide hydrogel for encapsulating and culturing chondrocytes in 3D and examine the effects of changing single amino acid moieties differing in hydrophobicity/hydrophilicity (valine (V), cysteine (C), tyrosine (Y)) on modulation of chondrocyte function. Encapsulated chondrocytes remained viable over 21 days in vitro. Glycosaminoglycan and collagen content was significantly higher in Y-functionalized hydrogels compared to V-functionalized hydrogels. Extensive matrix accumulation and concomitant increase in mechanical properties was evident over time, particularly with the presence of Y amino acid. After 21 days in vitro, Y-functionalized hydrogels attained a modulus of 193 ± 46 kPa, compared to 44 ± 21 kPa for V-functionalized hydrogels. Remarkably, mechanical and biochemical properties of chondrocyte-laden hydrogels were modulated by change in a single amino acid moiety. This unique property, combined with the versatility and biocompatibility, makes our saccharide-peptide hydrogels promising candidates for further investigation of combinatorial effects of multiple functional groups on controlling chondrocyte and other cellular function and behavior.
Collapse
Affiliation(s)
- Kanika Chawla
- Department of Chemistry, University of California-Irvine, 1102 Natural Sciences II, Irvine, CA 92606, USA
| | | | | | | | | |
Collapse
|
42
|
Li H, Cao Y, Wu X, Ye Z, Li G. Peptide-based electrochemical biosensor for amyloid β 1–42 soluble oligomer assay. Talanta 2012; 93:358-63. [DOI: 10.1016/j.talanta.2012.02.055] [Citation(s) in RCA: 62] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2011] [Revised: 02/18/2012] [Accepted: 02/22/2012] [Indexed: 12/01/2022]
|
43
|
Marquis M, Renard D, Cathala B. Microfluidic generation and selective degradation of biopolymer-based Janus microbeads. Biomacromolecules 2012; 13:1197-203. [PMID: 22401572 DOI: 10.1021/bm300159u] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
We describe a microfluidic approach for generating Janus microbeads from biopolymer hydrogels. A flow-focusing device was used to emulsify the coflow of aqueous solutions of one or two different biopolymers in an organic phase to synthesize homo or hetero Janus microbeads. Biopolymer gelation was initiated, in the chip, by diffusion-controlled ionic cross-linking of the biopolymers. Pectin-pectin (homo Janus) and, for the first time, pectin-alginate (hetero Janus) microbeads were produced. The efficiency of separation of the two hemispheres, which reflected mixing and convection phenomena, was investigated by confocal scanning laser microscopy (CSLM) of previously labeled biopolymers. The interface of the hetero Janus structure was clearly defined, whereas that of the homo Janus microbeads was poorly defined. The Janus structure was confirmed by subjecting each microbead hemisphere to specific enzymatic degradation. These new and original microbeads from renewable resources will open up opportunities for studying relationships between combined enzymatic hydrolysis and active compound release.
Collapse
Affiliation(s)
- Mélanie Marquis
- INRA, UR1268 Biopolymères Interactions Assemblages, Nantes, France.
| | | | | |
Collapse
|
44
|
Park KM, Lee Y, Son JY, Oh DH, Lee JS, Park KD. Synthesis and characterizations of in situ cross-linkable gelatin and 4-arm-PPO-PEO hybrid hydrogels via enzymatic reaction for tissue regenerative medicine. Biomacromolecules 2012; 13:604-11. [PMID: 22263670 DOI: 10.1021/bm201712z] [Citation(s) in RCA: 68] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
In situ cross-linkable hybrid hydrogels composed of gelatin and 4-arm-polypropylene oxide-polyethylene oxide (Tetronic) was developed as an injectable scaffold for tissue regeneration. The gelatin was modified by hydroxyphenyl propionic acid (HPA) and the Tetronic was conjugated with tyramines (Tet-TA). The hydrogels were rapidly formed by mixing the polymer solutions containing horseradish peroxidase (HRP) and hydrogen peroxide (H(2)O(2)). The gelation time and mechanical properties of the hydrogels could be controlled by varying the HRP and H(2)O(2) concentrations. In vitro degradation study of the hybrid hydrogels was carried out using collagenase and the prolonged proteolytic degradation was obtained due to the presence of the Tetronic. Human dermal fibroblast (hDFB) was cultured in the hydrogel matrices to evaluate the cyto-compatibility. The encapsulated cells were shown to be highly viable and spread over the gel matrices, suggesting that the hybrid hydrogels have an excellent cyto-compatibility. The hydrogels were also subcutaneously injected in the back of mice and the results demonstrated that the hydrogels were rapidly formed at the injected site. From these results, we demonstrate that the in situ cross-linkable hydrogels formed by hybridization of gelatin and Tetronic via enzyme-mediated reactions hold great promise for use as injectable matrices for tissue regenerative medicine due to their tunable physico-chemical properties and excellent bioactivity.
Collapse
Affiliation(s)
- Kyung Min Park
- Department of Molecular Science and Technology, Ajou University , 5 Woncheon, Yeongtong, Suwon 443-749, Republic of Korea
| | | | | | | | | | | |
Collapse
|
45
|
Jung JP, Squirrell JM, Lyons GE, Eliceiri KW, Ogle BM. Imaging cardiac extracellular matrices: a blueprint for regeneration. Trends Biotechnol 2011; 30:233-40. [PMID: 22209562 DOI: 10.1016/j.tibtech.2011.12.001] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2011] [Revised: 12/05/2011] [Accepted: 12/06/2011] [Indexed: 11/19/2022]
Abstract
Once damaged, cardiac tissue does not readily repair and is therefore a primary target of regenerative therapies. One regenerative approach is the development of scaffolds that functionally mimic the cardiac extracellular matrix (ECM) to deliver stem cells or cardiac precursor populations to the heart. Technological advances in micro/nanotechnology, stem cell biology, biomaterials and tissue decellularization have propelled this promising approach forward. Surprisingly, technological advances in optical imaging methods have not been fully utilized in the field of cardiac regeneration. Here, we describe and provide examples to demonstrate how advanced imaging techniques could revolutionize how ECM-mimicking cardiac tissues are informed and evaluated.
Collapse
Affiliation(s)
- Jangwook P Jung
- Department of Biomedical Engineering, University of Wisconsin-Madison, Madison, WI 53706, USA
| | | | | | | | | |
Collapse
|
46
|
Nimmo CM, Shoichet MS. Regenerative Biomaterials that “Click”: Simple, Aqueous-Based Protocols for Hydrogel Synthesis, Surface Immobilization, and 3D Patterning. Bioconjug Chem 2011; 22:2199-209. [DOI: 10.1021/bc200281k] [Citation(s) in RCA: 163] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Chelsea M. Nimmo
- The
Donnelly Centre for Cellular and Biomolecular Research, ‡Department of Chemistry, §Department of Chemical
Engineering and Applied Chemistry, and ∥Institute of Biomaterials and Biomedical
Engineering, University of Toronto, Toronto, Ontario, Canada
| | - Molly S. Shoichet
- The
Donnelly Centre for Cellular and Biomolecular Research, ‡Department of Chemistry, §Department of Chemical
Engineering and Applied Chemistry, and ∥Institute of Biomaterials and Biomedical
Engineering, University of Toronto, Toronto, Ontario, Canada
| |
Collapse
|