1
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Liu GW, Pickett MJ, Kuosmanen JLP, Ishida K, Madani WAM, White GN, Jenkins J, Park S, Feig VR, Jimenez M, Karavasili C, Lal NB, Murphy M, Lopes A, Morimoto J, Fitzgerald N, Cheah JH, Soule CK, Fabian N, Hayward A, Langer R, Traverso G. Drinkable in situ-forming tough hydrogels for gastrointestinal therapeutics. NATURE MATERIALS 2024; 23:1292-1299. [PMID: 38413810 PMCID: PMC11364503 DOI: 10.1038/s41563-024-01811-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Accepted: 01/17/2024] [Indexed: 02/29/2024]
Abstract
Pills are a cornerstone of medicine but can be challenging to swallow. While liquid formulations are easier to ingest, they lack the capacity to localize therapeutics with excipients nor act as controlled release devices. Here we describe drug formulations based on liquid in situ-forming tough (LIFT) hydrogels that bridge the advantages of solid and liquid dosage forms. LIFT hydrogels form directly in the stomach through sequential ingestion of a crosslinker solution of calcium and dithiol crosslinkers, followed by a drug-containing polymer solution of alginate and four-arm poly(ethylene glycol)-maleimide. We show that LIFT hydrogels robustly form in the stomachs of live rats and pigs, and are mechanically tough, biocompatible and safely cleared after 24 h. LIFT hydrogels deliver a total drug dose comparable to unencapsulated drug in a controlled manner, and protect encapsulated therapeutic enzymes and bacteria from gastric acid-mediated deactivation. Overall, LIFT hydrogels may expand access to advanced therapeutics for patients with difficulty swallowing.
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Affiliation(s)
- Gary W Liu
- David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Matthew J Pickett
- David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, USA
- Department of Chemistry, Yale University, New Haven, CT, USA
| | - Johannes L P Kuosmanen
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Keiko Ishida
- David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, USA
- Division of Gastroenterology, Hepatology, and Endoscopy, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
- Fractyl Health, Inc., Lexington, MA, USA
| | - Wiam A M Madani
- David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, USA
- Weill Cornell Medical College, New York City, NY, USA
| | - Georgia N White
- David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Joshua Jenkins
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA
- Ross University School of Veterinary Medicine, Basseterre, St. Kitts and Nevis
| | - Sanghyun Park
- David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, USA
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA
- Division of Gastroenterology, Hepatology, and Endoscopy, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Vivian R Feig
- David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, USA
- Division of Gastroenterology, Hepatology, and Endoscopy, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
- Stanford University, Stanford, CA, USA
| | - Miguel Jimenez
- David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, USA
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA
- Division of Gastroenterology, Hepatology, and Endoscopy, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
- Boston University, Boston, MA, USA
| | - Christina Karavasili
- David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, USA
- Division of Gastroenterology, Hepatology, and Endoscopy, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Nikhil B Lal
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA
- Division of Gastroenterology, Hepatology, and Endoscopy, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
- MIT Media Lab, Cambridge, MA, USA
| | - Matt Murphy
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA
- Division of Gastroenterology, Hepatology, and Endoscopy, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Aaron Lopes
- David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, USA
- Division of Gastroenterology, Hepatology, and Endoscopy, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Joshua Morimoto
- David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Nina Fitzgerald
- David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, USA
- Tufts University, Medford, MA, USA
| | - Jaime H Cheah
- David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, USA
- Broad Institute of MIT and Harvard, Cambridge, MA, USA
| | - Christian K Soule
- David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, USA
- Broad Institute of MIT and Harvard, Cambridge, MA, USA
| | - Niora Fabian
- David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, USA
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Alison Hayward
- David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, USA
- Division of Gastroenterology, Hepatology, and Endoscopy, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Robert Langer
- David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Giovanni Traverso
- David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, USA.
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA.
- Division of Gastroenterology, Hepatology, and Endoscopy, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA.
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2
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Milton LA, Davern JW, Hipwood L, Chaves JCS, McGovern J, Broszczak D, Hutmacher DW, Meinert C, Toh YC. Liver click dECM hydrogels for engineering hepatic microenvironments. Acta Biomater 2024; 185:144-160. [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] [MESH Headings] [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.
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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 C 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.
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3
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Rozans S, Moghaddam AS, Wu Y, Atanasoff K, Nino L, Dunne K, Pashuck ET. Quantifying and Controlling the Proteolytic Degradation of Cell Adhesion Peptides. ACS Biomater Sci Eng 2024; 10:4916-4926. [PMID: 38968389 PMCID: PMC11322908 DOI: 10.1021/acsbiomaterials.4c00736] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2024] [Revised: 06/10/2024] [Accepted: 06/18/2024] [Indexed: 07/07/2024]
Abstract
Peptides are widely used within biomaterials to improve cell adhesion, incorporate bioactive ligands, and enable cell-mediated degradation of the matrix. While many of the peptides incorporated into biomaterials are intended to be present throughout the life of the material, their stability is not typically quantified during culture. In this work, we designed a series of peptide libraries containing four different N-terminal peptide functionalizations and three C-terminal functionalizations to better understand how simple modifications can be used to reduce the nonspecific degradation of peptides. We tested these libraries with three cell types commonly used in biomaterials research, including mesenchymal stem/stromal cells (hMSCs), endothelial cells, and macrophages, and quantified how these cell types nonspecifically degraded peptides as a function of terminal amino acid and chemistry. We found that peptides in solution which contained N-terminal amines were almost entirely degraded by 48 h, irrespective of the terminal amino acid, and that degradation occurred even at high peptide concentrations. Peptides with C-terminal carboxylic acids also had significant degradation when cultured with the cells. We found that simple modifications to the termini could significantly reduce or completely abolish nonspecific degradation when soluble peptides were added to cells cultured on tissue culture plastic or within hydrogel matrices, and that functionalizations which mimicked peptide conjugations to hydrogel matrices significantly slowed nonspecific degradation. We also found that there were minimal differences in peptide degradation across cell donors and that sequences mimicking different peptides commonly used to functionalize biomaterials all had significant nonspecific degradation. Finally, we saw that there was a positive trend between RGD stability and hMSC spreading within hydrogels, indicating that improving the stability of peptides within biomaterial matrices may improve the performance of engineered matrices.
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Affiliation(s)
- Samuel
J. Rozans
- Department of Bioengineering, Lehigh University, 7
Asa Drive, Suite 205, Bethlehem, PA 18015, United States
| | - Abolfazl Salehi Moghaddam
- Department of Bioengineering, Lehigh University, 7
Asa Drive, Suite 205, Bethlehem, PA 18015, United States
| | - Yingjie Wu
- Department of Bioengineering, Lehigh University, 7
Asa Drive, Suite 205, Bethlehem, PA 18015, United States
| | - Kayleigh Atanasoff
- Department of Bioengineering, Lehigh University, 7
Asa Drive, Suite 205, Bethlehem, PA 18015, United States
| | - Liliana Nino
- Department of Bioengineering, Lehigh University, 7
Asa Drive, Suite 205, Bethlehem, PA 18015, United States
| | - Katelyn Dunne
- Department of Bioengineering, Lehigh University, 7
Asa Drive, Suite 205, Bethlehem, PA 18015, United States
| | - E. Thomas Pashuck
- Department of Bioengineering, Lehigh University, 7
Asa Drive, Suite 205, Bethlehem, PA 18015, United States
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4
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Hebner TS, Kirkpatrick BE, Fairbanks BD, Bowman CN, Anseth KS, Benoit DS. Radical-Mediated Degradation of Thiol-Maleimide Hydrogels. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2402191. [PMID: 38582514 PMCID: PMC11220706 DOI: 10.1002/advs.202402191] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/29/2024] [Revised: 03/22/2024] [Indexed: 04/08/2024]
Abstract
Michael addition between thiol- and maleimide-functionalized molecules is a long-standing approach used for bioconjugation, hydrogel crosslinking, and the functionalization of other advanced materials. While the simplicity of this chemistry enables facile synthesis of hydrogels, network degradation is also desirable in many instances. Here, the susceptibility of thiol-maleimide bonds to radical-mediated degradation is reported. Irreversible degradation in crosslinked materials is demonstrated using photoinitiated and chemically initiated radicals in hydrogels and linear polymers. The extent of degradation is shown to be dependent on initiator concentration. Using a model linear polymer system, the radical-mediated mechanism of degradation is elucidated, in which the thiosuccinimide crosslink is converted to a succinimide and a new thioether formed with an initiator fragment. Using laser stereolithography, high-fidelity spatiotemporal control over degradation in crosslinked gels is demonstrated. Ultimately, this work establishes a platform for controllable, radical-mediated degradation in thiol-maleimide hydrogels, further expanding their versatility as functional materials.
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Affiliation(s)
- Tayler S. Hebner
- Department of BioengineeringUniversity of Oregon6231 University of OregonEugeneOR97403USA
| | - Bruce E. Kirkpatrick
- Department of Chemical and Biological EngineeringUniversity of Colorado Boulder596 UCBBoulderCO80309USA
- BioFrontiers InstituteUniversity of Colorado Boulder596 UCBBoulderCO80309USA
- BioFrontiers Institute Medical Scientist Training ProgramUniversity of Colorado Anschutz Medical Campus13001 East 17th PlaceAuroraCO80045USA
| | - Benjamin D. Fairbanks
- Department of Chemical and Biological EngineeringUniversity of Colorado Boulder596 UCBBoulderCO80309USA
| | - Christopher N. Bowman
- Department of Chemical and Biological EngineeringUniversity of Colorado Boulder596 UCBBoulderCO80309USA
| | - Kristi S. Anseth
- Department of Chemical and Biological EngineeringUniversity of Colorado Boulder596 UCBBoulderCO80309USA
- BioFrontiers InstituteUniversity of Colorado Boulder596 UCBBoulderCO80309USA
| | - Danielle S.W. Benoit
- Department of BioengineeringUniversity of Oregon6231 University of OregonEugeneOR97403USA
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5
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Chen Y, Chen B, Dong J, Yang D, Tang H, Wen L, Li J, Huang L, Zhou J. A tough and bioadhesive injectable hydrogel formed with maleimidyl alginate and pristine gelatin. Carbohydr Polym 2024; 334:122011. [PMID: 38553212 DOI: 10.1016/j.carbpol.2024.122011] [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: 11/17/2023] [Revised: 02/01/2024] [Accepted: 02/29/2024] [Indexed: 04/02/2024]
Abstract
Injectable hydrogels have wide applications in clinical practice. However, the development of tough and bioadhesive ones based on biopolymers, along with biofriendly and robust crosslinking strategies, still represents a great challenge. Herein, we report an injectable hydrogel composed of maleimidyl alginate and pristine gelatin, for which the precursor solutions could self-crosslink via mild Michael-type addition without any catalyst or external energy upon mixing. This hydrogel is tough and bioadhesive, which can maintain intactness as well as adherence to the defect of porcine skin under fierce bending and twisting, warm water bath, and boiling water shower. Besides, it is biocompatible, bioactive and biodegradable, which could support the growth and remodeling of cells by affording an extracellular matrix-like environment. As a proof of application, we demonstrate that this hydrogel could significantly accelerate diabetic skin wound healing, thereby holding great potential in healthcare.
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Affiliation(s)
- Yin Chen
- School of Biomedical Engineering, Guangzhou Medical University, Guangzhou 511436, China; School of Biomedical Engineering, Sun Yat-sen University, Shenzhen 518107, China
| | - Baiqi Chen
- School of Biomedical Engineering, Sun Yat-sen University, Shenzhen 518107, China
| | - Jianpei Dong
- School of Biomedical Engineering, Sun Yat-sen University, Shenzhen 518107, China
| | - Deyu Yang
- School of Biomedical Engineering, Sun Yat-sen University, Shenzhen 518107, China
| | - Hao Tang
- School of Biomedical Engineering, Sun Yat-sen University, Shenzhen 518107, China
| | - Lan Wen
- Department of Neurosurgery, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Jianshu Li
- School of Biomedical Engineering, Guangzhou Medical University, Guangzhou 511436, China; College of Polymer Science and Engineering, Sichuan University, Chengdu 610065, China
| | - Lu Huang
- School of Biomedical Engineering, Sun Yat-sen University, Shenzhen 518107, China.
| | - Jianhua Zhou
- School of Biomedical Engineering, Sun Yat-sen University, Shenzhen 518107, China.
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Ebrahimi M, Arreguín-Campos M, Dookhith AZ, Aldana AA, Lynd NA, Sanoja GE, Baker MB, Pitet LM. Tailoring Network Topology in Mechanically Robust Hydrogels for 3D Printing and Injection. ACS APPLIED MATERIALS & INTERFACES 2024. [PMID: 38712527 DOI: 10.1021/acsami.4c03209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2024]
Abstract
Tissue engineering and regenerative medicine are confronted with a persistent challenge: the urgent demand for robust, load-bearing, and biocompatible scaffolds that can effectively endure substantial deformation. Given that inadequate mechanical performance is typically rooted in structural deficiencies─specifically, the absence of energy dissipation mechanisms and network uniformity─a crucial step toward solving this problem is generating synthetic approaches that enable exquisite control over network architecture. This work systematically explores structure-property relationships in poly(ethylene glycol)-based hydrogels constructed utilizing thiol-yne chemistry. We systematically vary polymer concentration, constituent molar mass, and cross-linking protocols to understand the impact of architecture on hydrogel mechanical properties. The network architecture was resolved within the molecular model of Rubinstein-Panyukov to obtain the densities of chemical cross-links and entanglements. We employed both nucleophilic and radical pathways, uncovering notable differences in mechanical response, which highlight a remarkable degree of versatility achievable by tuning readily accessible parameters. Our approach yielded hydrogels with good cell viability and remarkably robust tensile and compression profiles. Finally, the hydrogels are shown to be amenable to advanced processing techniques by demonstrating injection- and extrusion-based 3D printing. Tuning the mechanism and network regularity during the cell-compatible formation of hydrogels is an emerging strategy to control the properties and processability of hydrogel biomaterials by making simple and rational design choices.
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Affiliation(s)
- Mahsa Ebrahimi
- Advanced Functional Polymers (AFP) Laboratory, Institute for Materials Research (imo-imomec), Hasselt University, Martelarenlaan 42, Hasselt 3500, Belgium
- Department of Instructive Biomaterials Engineering and Department of Complex Tissue Regeneration, MERLN Institute for Technology Inspired Regenerative Medicine, Maastricht University, Universiteitssingel 40, Maastricht 6229 ET, The Netherlands
| | - Mariana Arreguín-Campos
- Advanced Functional Polymers (AFP) Laboratory, Institute for Materials Research (imo-imomec), Hasselt University, Martelarenlaan 42, Hasselt 3500, Belgium
- Department of Instructive Biomaterials Engineering and Department of Complex Tissue Regeneration, MERLN Institute for Technology Inspired Regenerative Medicine, Maastricht University, Universiteitssingel 40, Maastricht 6229 ET, The Netherlands
| | - Aaliyah Z Dookhith
- McKetta Department of Chemical Engineering, The University of Texas at Austin, Austin, Texas 78712, United States
| | - Ana A Aldana
- Department of Instructive Biomaterials Engineering and Department of Complex Tissue Regeneration, MERLN Institute for Technology Inspired Regenerative Medicine, Maastricht University, Universiteitssingel 40, Maastricht 6229 ET, The Netherlands
| | - Nathaniel A Lynd
- McKetta Department of Chemical Engineering, The University of Texas at Austin, Austin, Texas 78712, United States
| | - Gabriel E Sanoja
- McKetta Department of Chemical Engineering, The University of Texas at Austin, Austin, Texas 78712, United States
| | - Matthew B Baker
- Department of Instructive Biomaterials Engineering and Department of Complex Tissue Regeneration, MERLN Institute for Technology Inspired Regenerative Medicine, Maastricht University, Universiteitssingel 40, Maastricht 6229 ET, The Netherlands
| | - Louis M Pitet
- Advanced Functional Polymers (AFP) Laboratory, Institute for Materials Research (imo-imomec), Hasselt University, Martelarenlaan 42, Hasselt 3500, Belgium
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7
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Rozans SJ, Moghaddam AS, Wu Y, Atanasoff K, Nino L, Dunne K, Pashuck ET. Quantifying and controlling the proteolytic degradation of cell adhesion peptides. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.04.19.590329. [PMID: 38712239 PMCID: PMC11071418 DOI: 10.1101/2024.04.19.590329] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2024]
Abstract
Peptides are widely used within biomaterials to improve cell adhesion, incorporate bioactive ligands, and enable cell-mediated degradation of the matrix. While many of the peptides incorporated into biomaterials are intended to be present throughout the life of the material, their stability is not typically quantified during culture. In this work we designed a series of peptide libraries containing four different N-terminal peptide functionalizations and three C-terminal functionalization to better understand how simple modifications can be used to reduce non-specific degradation of peptides. We tested these libraries with three cell types commonly used in biomaterials research, including mesenchymal stem/stromal cells (hMSCs), endothelial cells, and macrophages, and quantified how these cell types non-specifically degraded peptide as a function of terminal amino acid and chemistry. We found that peptides in solution which contained N-terminal amines were almost entirely degraded by 48 hours, irrespective of the terminal amino acid, and that degradation occurred even at high peptide concentrations. Peptides with C-terminal carboxylic acids also had significant degradation when cultured with cells. We found that simple modifications to the termini could significantly reduce or completely abolish non-specific degradation when soluble peptides were added to cells cultured on tissue culture plastic or within hydrogel matrices, and that functionalizations which mimicked peptide conjugations to hydrogel matrices significantly slowed non-specific degradation. We also found that there were minimal differences across cell donors, and that sequences mimicking different peptides commonly-used to functionalized biomaterials all had significant non-specific degradation. Finally, we saw that there was a positive trend between RGD stability and hMSC spreading within hydrogels, indicating that improving the stability of peptides within biomaterial matrices may improve the performance of engineered matrices.
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8
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Li F, Chen X, He Y, Peng Z. Mucoadhesive Thiolated Hyaluronic Acid/Pluronic F127 Nanogel Formation via Thiol-Maleimide Click Reaction for Intravesical Drug Delivery. ACS APPLIED BIO MATERIALS 2024; 7:1976-1989. [PMID: 38447202 DOI: 10.1021/acsabm.4c00068] [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] [Indexed: 03/08/2024]
Abstract
The development of nanocarriers to prolong the residence time and enhance the permeability of chemotherapeutic drugs on bladder mucosa is important in the postsurgery treatment of superficial bladder cancers (BCs). Here, the mucoadhesive HA-SH/PF127 nanogels composed of a temperature-sensitive Pluronic F127 (PF127) core and thiolated hyaluronic acid (HA-SH) shell were prepared by the emulsification/solvent evaporation method. The nanogels were constructed through the thiol-maleimide click reaction in the HA-SH aqueous side of the oil-water interface and self-oxidized cross-linking thiols between HA-SH. The HA-SH/PF127 nanogels prepared at different thiol-to-maleimide group molar ratios, water-to-oil volume ratios, and cross-linking reaction times were characterized regarding hydrodynamic diameter (Dh) and zeta potential (ζ), and the optimal formulation was obtained. The excellent mucoadhesive properties of the HA-SH/PF127 nanogels were evaluated by using the mucin particle method. Doxorubicin (DOX) was encapsulated in the PF127 core of DOX@HA-SH/PF127 nanogels with a high loading efficiency (87.5%) and sustained release from the nanogels in artificial urine. Ex vivo studies on porcine bladder mucosa showed that the DOX@HA-SH/PF127 nanogels enhanced the penetration of the DOX into the bladder mucosa without disrupting the mucus structure or the bladder tissue. A significant dose-dependent cytotoxic effect of DOX@HA-SH/PF127 nanogels on both T24 and MB49 cells was observed. The present study demonstrates that the mucoadhesive HA-SH/PF127 nanogels are a promising intravesical drug delivery system for superficial BC therapy.
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Affiliation(s)
- Fayang Li
- Department of Polymer Materials and Engineering, School of Physics and Materials Science, Nanchang University, Nanchang 330031, China
| | - Xianhuang Chen
- Department of Polymer Materials and Engineering, School of Physics and Materials Science, Nanchang University, Nanchang 330031, China
| | - Yuanqiao He
- Center of Laboratory Animal Science, Nanchang University, Nanchang 330031, China
- Jiangxi Province Key Laboratory of Laboratory Animal, Nanchang 330031, China
| | - Zhiping Peng
- Department of Polymer Materials and Engineering, School of Physics and Materials Science, Nanchang University, Nanchang 330031, China
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9
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Palmese LL, LeValley PJ, Pradhan L, Parsons AL, Oakey JS, Abraham M, D'Addio SM, Kloxin AM, Liang Y, Kiick KL. Injectable liposome-containing click hydrogel microparticles for release of macromolecular cargos. SOFT MATTER 2024; 20:1736-1745. [PMID: 38288734 PMCID: PMC10880143 DOI: 10.1039/d3sm01009k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Accepted: 12/16/2023] [Indexed: 02/22/2024]
Abstract
Hydrogel microparticles ranging from 0.1-100 μm, referred to as microgels, are attractive for biological applications afforded by their injectability and modularity, which allows facile delivery of mixed populations for tailored combinations of therapeutics. Significant efforts have been made to broaden methods for microgel production including via the materials and chemistries by which they are made. Via droplet-based-microfluidics we have established a method for producing click poly-(ethylene)-glycol (PEG)-based microgels with or without chemically crosslinked liposomes (lipo-microgels) through the Michael-type addition reaction between thiol and either vinyl-sulfone or maleimide groups. Unifom spherical microgels and lipo-microgels were generated with sizes of 74 ± 16 μm and 82 ± 25 μm, respectively, suggesting injectability that was further supported by rheological analyses. Super-resolution confocal microscopy was used to further verify the presence of liposomes within the lipo-microgels and determine their distribution. Atomic force microscopy (AFM) was conducted to compare the mechanical properties and network architecture of bulk hydrogels, microgels, and lipo-microgels. Further, encapsulation and release of model cargo (FITC-Dextran 5 kDa) and protein (equine myoglobin) showed sustained release for up to 3 weeks and retention of protein composition and secondary structure, indicating their ability to both protect and release cargos of interest.
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Affiliation(s)
- Luisa L Palmese
- Materials Science and Engineering, University of Delaware, Newark, DE, USA.
| | - Paige J LeValley
- Chemical and Biomolecular Engineering, University of Delaware, Newark, DE, USA
| | - Lina Pradhan
- Chemical and Biomolecular Engineering, University of Delaware, Newark, DE, USA
| | - Amanda L Parsons
- Chemical and Biomedical Engineering, University of Wyoming, Laramie, WY, USA
| | - John S Oakey
- Chemical and Biomedical Engineering, University of Wyoming, Laramie, WY, USA
| | - Mathew Abraham
- Translational Imaging, Merck & Co., Inc., West Point, PA, USA
| | - Suzanne M D'Addio
- Discovery Pharmaceutical Sciences, Merck & Co., Inc., West Point, PA, USA.
| | - April M Kloxin
- Materials Science and Engineering, University of Delaware, Newark, DE, USA.
- Chemical and Biomolecular Engineering, University of Delaware, Newark, DE, USA
| | - Yingkai Liang
- Discovery Pharmaceutical Sciences, Merck & Co., Inc., West Point, PA, USA.
| | - Kristi L Kiick
- Materials Science and Engineering, University of Delaware, Newark, DE, USA.
- Biomedical Engineering, University of Delaware, Newark, DE, USA
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10
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Bahou C, Spears RJ, Ramírez Rosales AM, Rochet LNC, Barber LJ, Stankevich KS, Miranda JF, Butcher TC, Kerrigan AM, Lazarov VK, Grey W, Chudasama V, Spicer CD. Hydrogel Cross-Linking via Thiol-Reactive Pyridazinediones. Biomacromolecules 2023; 24:4646-4652. [PMID: 37792488 PMCID: PMC10646975 DOI: 10.1021/acs.biomac.3c00290] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Revised: 09/18/2023] [Indexed: 10/06/2023]
Abstract
Thiol-reactive Michael acceptors are commonly used for the formation of chemically cross-linked hydrogels. In this paper, we address the drawbacks of many Michael acceptors by introducing pyridazinediones as new cross-linking agents. Through the use of pyridazinediones and their mono- or dibrominated analogues, we show that the mechanical strength, swelling ratio, and rate of gelation can all be controlled in a pH-sensitive manner. Moreover, we demonstrate that the degradation of pyridazinedione-gels can be induced by the addition of thiols, thus providing a route to responsive or dynamic gels, and that monobromo-pyridazinedione gels are able to support the proliferation of human cells. We anticipate that our results will provide a valuable and complementary addition to the existing toolkit of cross-linking agents, allowing researchers to tune and rationally design the properties of biomedical hydrogels.
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Affiliation(s)
- Calise Bahou
- Department
of Chemistry, University College London, 20 Gordon Street, London WC1H 0AJ, U.K.
| | - Richard J. Spears
- Department
of Chemistry, University College London, 20 Gordon Street, London WC1H 0AJ, U.K.
| | - Angela M. Ramírez Rosales
- Department
of Chemistry, University of York, Heslington YO10 5DD, U.K.
- York
Biomedical Research Institute, University
of York, Heslington YO10 5DD, U.K.
| | - Léa N. C. Rochet
- Department
of Chemistry, University College London, 20 Gordon Street, London WC1H 0AJ, U.K.
| | - Lydia J. Barber
- Department
of Chemistry, University of York, Heslington YO10 5DD, U.K.
- York
Biomedical Research Institute, University
of York, Heslington YO10 5DD, U.K.
| | - Ksenia S. Stankevich
- Department
of Chemistry, University of York, Heslington YO10 5DD, U.K.
- York
Biomedical Research Institute, University
of York, Heslington YO10 5DD, U.K.
| | - Juliana F. Miranda
- York
Biomedical Research Institute, University
of York, Heslington YO10 5DD, U.K.
| | - Tobias C. Butcher
- Department
of Chemistry, University College London, 20 Gordon Street, London WC1H 0AJ, U.K.
| | - Adam M. Kerrigan
- The
York JEOL Nanocentre, University of York, Heslington YO10 5BR, U.K.
| | - Vlado K. Lazarov
- School
of Physics, Engineering, and Technology, University of York, Heslington YO10 5DD, U.K.
| | - William Grey
- York
Biomedical Research Institute, University
of York, Heslington YO10 5DD, U.K.
| | - Vijay Chudasama
- Department
of Chemistry, University College London, 20 Gordon Street, London WC1H 0AJ, U.K.
| | - Christopher D. Spicer
- Department
of Chemistry, University of York, Heslington YO10 5DD, U.K.
- York
Biomedical Research Institute, University
of York, Heslington YO10 5DD, U.K.
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11
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Fulton DA, Dura G, Peters DT. The polymer and materials science of the bacterial fimbriae Caf1. Biomater Sci 2023; 11:7229-7246. [PMID: 37791425 PMCID: PMC10628683 DOI: 10.1039/d3bm01075a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Accepted: 09/22/2023] [Indexed: 10/05/2023]
Abstract
Fimbriae are long filamentous polymeric protein structures located upon the surface of bacteria. Often implicated in pathogenicity, the biosynthesis and function of fimbriae has been a productive topic of study for many decades. Evolutionary pressures have ensured that fimbriae possess unique structural and mechanical properties which are advantageous to bacteria. These properties are also difficult to engineer with well-known synthetic and natural fibres, and this has raised an intriguing question: can we exploit the unique properties of bacterial fimbriae in useful ways? Initial work has set out to explore this question by using Capsular antigen fragment 1 (Caf1), a fimbriae expressed naturally by Yersina pestis. These fibres have evolved to 'shield' the bacterium from the immune system of an infected host, and thus are rather bioinert in nature. Caf1 is, however, very amenable to structural mutagenesis which allows the incorporation of useful bioactive functions and the modulation of the fibre's mechanical properties. Its high-yielding recombinant synthesis also ensures plentiful quantities of polymer are available to drive development. These advantageous features make Caf1 an archetype for the development of new polymers and materials based upon bacterial fimbriae. Here, we cover recent advances in this new field, and look to future possibilities of this promising biopolymer.
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Affiliation(s)
- David A Fulton
- Chemistry-School of Natural Science and Environmental Sciences, Newcastle University, Newcastle-upon-Tyne, NE1 7RU, UK.
| | - Gema Dura
- Chemistry-School of Natural Science and Environmental Sciences, Newcastle University, Newcastle-upon-Tyne, NE1 7RU, UK.
- Departamento de Química Inorgánica Orgánica y Bioquímica Universidad de Castilla-La Mancha Facultad de Ciencias y Tecnologías Químicas-IRICAAvda, C. J. Cela, 10, Ciudad Real 13071, Spain
| | - Daniel T Peters
- Biosciences Institute, Medical School, Newcastle University, Newcastle upon Tyne, NE1 7RU, UK
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12
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Trujillo S, Kasper J, de Miguel-Jiménez A, Abt B, Bauer A, Mekontso J, Pearson S, del Campo A. Cytocompatibility Evaluation of PEG-Methylsulfone Hydrogels. ACS OMEGA 2023; 8:32043-32052. [PMID: 37692225 PMCID: PMC10483518 DOI: 10.1021/acsomega.3c03952] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Accepted: 07/31/2023] [Indexed: 09/12/2023]
Abstract
Methylsulfone derivatized poly(ethylene) glycol (PEG) macromers can be biofunctionalized with thiolated ligands and cross-linked with thiol-based cross-linkers to obtain bioactive PEG hydrogels for in situ cell encapsulation. Methylsulfonyl-thiol (MS-SH) reactions present several advantages for this purpose when compared to other thiol-based cross-linking systems. They proceed with adequate and tunable kinetics for encapsulation, they reach a high conversion degree with good selectivity, and they generate stable reaction products. Our previous work demonstrated the cytocompatibility of cross-linked PEG-MS/thiol hydrogels in contact with fibroblasts. However, the cytocompatibility of the in situ MS-SH cross-linking reaction itself, which generates methylsulfinic acid as byproduct at the cross-linked site, remains to be evaluated. These studies are necessary to evaluate the potential of these systems for in vivo applications. Here we perform an extensive cytocompatibility study of PEG hydrogels during in situ cross-linking by the methylsulfonyl-thiol reaction. We compare these results with maleimide-thiol cross-linked PEGs which are well established for cell culture and in vivo experiments and do not involve the release of a byproduct. We show that fibroblasts and endothelial cells remain viable after in situ polymerization of methylsulfonyl-thiol gels on the top of the cell layers. Cell viability seems better than after in situ cross-linking hydrogels with maleimide-thiol chemistry. The endothelial cell proinflammatory phenotype is low and similar to the one obtained by the maleimide-thiol reaction. Finally, no activation of monocytes is observed. All in all, these results demonstrate that the methylsulfonyl-thiol chemistry is cytocompatible and does not trigger high pro-inflammatory responses in endothelial cells and monocytes. These results make methylsulfonyl-thiol chemistries eligible for in vivo testing and eventually clinical application in the future.
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Affiliation(s)
- Sara Trujillo
- INM-Leibniz
Institute for New Materials, campus D2 2, Saarbrücken 66123, Germany
| | - Jennifer Kasper
- INM-Leibniz
Institute for New Materials, campus D2 2, Saarbrücken 66123, Germany
| | - Adrián de Miguel-Jiménez
- INM-Leibniz
Institute for New Materials, campus D2 2, Saarbrücken 66123, Germany
- Chemistry
Department, Saarland University, Saarbrücken 66123, Germany
| | - Britta Abt
- INM-Leibniz
Institute for New Materials, campus D2 2, Saarbrücken 66123, Germany
| | - Alina Bauer
- INM-Leibniz
Institute for New Materials, campus D2 2, Saarbrücken 66123, Germany
| | - Joëlle Mekontso
- INM-Leibniz
Institute for New Materials, campus D2 2, Saarbrücken 66123, Germany
- Chemistry
Department, Saarland University, Saarbrücken 66123, Germany
| | - Samuel Pearson
- INM-Leibniz
Institute for New Materials, campus D2 2, Saarbrücken 66123, Germany
| | - Aránzazu del Campo
- INM-Leibniz
Institute for New Materials, campus D2 2, Saarbrücken 66123, Germany
- Chemistry
Department, Saarland University, Saarbrücken 66123, Germany
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13
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Widener AE, Roberts A, Phelps EA. Single versus dual microgel species for forming guest-host microporous annealed particle PEG-MAL hydrogel. J Biomed Mater Res A 2023; 111:1379-1389. [PMID: 37010360 PMCID: PMC10909382 DOI: 10.1002/jbm.a.37540] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2022] [Revised: 03/03/2023] [Accepted: 03/20/2023] [Indexed: 04/04/2023]
Abstract
Inter-particle secondary crosslinks allow microporous annealed particle (MAP) hydrogels to be formed. Methods to introduce secondary crosslinking networks in MAP hydrogels include particle jamming, annealing with covalent bonds, and reversible noncovalent interactions. Here, we investigate the effect of two different approaches to secondary crosslinking of polyethylene glycol (PEG) microgels via reversible guest-host interactions. We generated a dual-particle MAP-PEG hydrogel using two species of PEG microgels, one functionalized with the guest molecule, adamantane, and the other with the host molecule, β-cyclodextrin (Inter-MAP-PEG). In a different approach, a mono-particle MAP-PEG hydrogel was generated using one species of microgel functionalized with both guest and host molecules (Intra-MAP-PEG). The Intra-MAP-PEG formed a homogenous distribution due to the single type of microgels used. We then compared the mechanical properties of these two types of MAP-PEG hydrogels and found that Intra-MAP-PEG resulted in significantly softer gels with lower yield stress. We investigated the effect of intra-particle guest-host interactions through titrated weight percentage and the concentration of functional groups added to the hydrogel. We found that there was an ideal concentration of guest-host molecules that enables intra- and inter-particle guest-host interactions with sufficient covalent crosslinking. Based on these studies, Intra-MAP-PEG provides a homogeneous guest-host hydrogel that is shear-thinning with reversible secondary crosslinking.
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Affiliation(s)
- Adrienne E. Widener
- J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, Gainesville, FL, USA
| | - Abilene Roberts
- J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, Gainesville, FL, USA
| | - Edward A. Phelps
- J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, Gainesville, FL, USA
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14
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Metkari AS, Fowler EW, Witt RL, Jia X. Matrix Degradability Contributes to the Development of Salivary Gland Progenitor Cells with Secretory Functions. ACS APPLIED MATERIALS & INTERFACES 2023; 15:32148-32161. [PMID: 37364369 PMCID: PMC10529452 DOI: 10.1021/acsami.3c03064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/28/2023]
Abstract
Synthetic matrices that are cytocompatible, cell adhesive, and cell responsive are needed for the engineering of implantable, secretory salivary gland constructs to treat radiation induced xerostomia or dry mouth. Here, taking advantage of the bioorthogonality of the Michael-type addition reaction, hydrogels with comparable stiffness but varying degrees of degradability (100% degradable, 100DEG; 50% degradable, 50DEG; and nondegradable, 0DEG) by cell-secreted matrix metalloproteases (MMPs) were synthesized using thiolated HA (HA-SH), maleimide (MI)-conjugated integrin-binding peptide (RGD-MI), and MI-functionalized peptide cross-linkers that are protease degradable (GIW-bisMI) or nondegradable (GIQ-bisMI). Organized multicellular structures developed readily in all hydrogels from dispersed primary human salivary gland stem cells (hS/PCs). As the matrix became progressively degradable, cells proliferated more readily, and the multicellular structures became larger, less spherical, and more lobular. Immunocytochemical analysis showed positive staining for stem/progenitor cell markers CD44 and keratin 5 (K5) in all three types of cultures and positive staining for the acinar marker α-amylase under 50DEG and 100DEG conditions. Quantitatively at the mRNA level, the expression levels of key stem/progenitor markers KIT, KRT5, and ETV4/5 were significantly increased in the degradable gels as compared to the nondegradable counterparts. Western blot analyses revealed that imparting matrix degradation led to >3.8-fold increase in KIT expression by day 15. The MMP-degradable hydrogels also promoted the development of a secretary phenotype, as evidenced by the upregulation of acinar markers α-amylase (AMY), aquaporin-5 (AQP5), and sodium-potassium chloride cotransporter 1 (SLC12A2). Collectively, we show that cell-mediated matrix remodeling is necessary for the development of regenerative pro-acinar progenitor cells from hS/PCs.
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Affiliation(s)
- Apoorva S. Metkari
- Department of Materials Science and Engineering, University of Delaware, Newark, Delaware, USA
| | - Eric W. Fowler
- Department of Materials Science and Engineering, University of Delaware, Newark, Delaware, USA
| | - Robert L. Witt
- Helen F. Graham Cancer Center and Research Institute, Newark, Delaware, USA
| | - Xinqiao Jia
- Department of Materials Science and Engineering, University of Delaware, Newark, Delaware, USA
- Department of Biomedical Engineering, University of Delaware, Newark, Delaware, USA
- Department of Biological Sciences, University of Delaware, Newark, Delaware, USA
- Delaware Biotechnology Institute, 590 Avenue 1743, Newark, Delaware, USA
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15
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Oliver-Cervelló L, Martin-Gómez H, Gonzalez-Garcia C, Salmeron-Sanchez M, Ginebra MP, Mas-Moruno C. Protease-degradable hydrogels with multifunctional biomimetic peptides for bone tissue engineering. Front Bioeng Biotechnol 2023; 11:1192436. [PMID: 37324414 PMCID: PMC10267393 DOI: 10.3389/fbioe.2023.1192436] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Accepted: 05/23/2023] [Indexed: 06/17/2023] Open
Abstract
Mimicking bone extracellular matrix (ECM) is paramount to develop novel biomaterials for bone tissue engineering. In this regard, the combination of integrin-binding ligands together with osteogenic peptides represents a powerful approach to recapitulate the healing microenvironment of bone. In the present work, we designed polyethylene glycol (PEG)-based hydrogels functionalized with cell instructive multifunctional biomimetic peptides (either with cyclic RGD-DWIVA or cyclic RGD-cyclic DWIVA) and cross-linked with matrix metalloproteinases (MMPs)-degradable sequences to enable dynamic enzymatic biodegradation and cell spreading and differentiation. The analysis of the intrinsic properties of the hydrogel revealed relevant mechanical properties, porosity, swelling and degradability to engineer hydrogels for bone tissue engineering. Moreover, the engineered hydrogels were able to promote human mesenchymal stem cells (MSCs) spreading and significantly improve their osteogenic differentiation. Thus, these novel hydrogels could be a promising candidate for applications in bone tissue engineering, such as acellular systems to be implanted and regenerate bone or in stem cells therapy.
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Affiliation(s)
- Lluís Oliver-Cervelló
- Biomaterials, Biomechanics and Tissue Engineering Group, Department of Materials Science and Engineering, Universitat Politècnica de Catalunya (UPC), Barcelona, Spain
- Barcelona Research Center in Multiscale Science and Engineering, UPC, Barcelona, Spain
| | - Helena Martin-Gómez
- Biomaterials, Biomechanics and Tissue Engineering Group, Department of Materials Science and Engineering, Universitat Politècnica de Catalunya (UPC), Barcelona, Spain
- Barcelona Research Center in Multiscale Science and Engineering, UPC, Barcelona, Spain
| | - Cristina Gonzalez-Garcia
- Centre for the Cellular Microenvironment, Advanced Research Centre, University of Glasgow, Glasgow, United Kingdom
| | - Manuel Salmeron-Sanchez
- Centre for the Cellular Microenvironment, Advanced Research Centre, University of Glasgow, Glasgow, United Kingdom
| | - Maria-Pau Ginebra
- Biomaterials, Biomechanics and Tissue Engineering Group, Department of Materials Science and Engineering, Universitat Politècnica de Catalunya (UPC), Barcelona, Spain
- Barcelona Research Center in Multiscale Science and Engineering, UPC, Barcelona, Spain
- Institute for Bioengineering of Catalonia (IBEC), Barcelona Institute of Science and Technology (BIST), Barcelona, Spain
| | - Carlos Mas-Moruno
- Biomaterials, Biomechanics and Tissue Engineering Group, Department of Materials Science and Engineering, Universitat Politècnica de Catalunya (UPC), Barcelona, Spain
- Barcelona Research Center in Multiscale Science and Engineering, UPC, Barcelona, Spain
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16
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Costa FJP, Nave M, Lima-Sousa R, Alves CG, Melo BL, Correia IJ, de Melo-Diogo D. Development of Thiol-Maleimide hydrogels incorporating graphene-based nanomaterials for cancer chemo-photothermal therapy. Int J Pharm 2023; 635:122713. [PMID: 36764414 DOI: 10.1016/j.ijpharm.2023.122713] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Revised: 01/30/2023] [Accepted: 02/06/2023] [Indexed: 02/11/2023]
Abstract
Nano-sized materials have been widely explored in the biomedicine field, especially due to their ability to encapsulate drugs intended to be delivered to cancer cells. However, systemically administered nanomaterials face several barriers that can hinder their tumor-homing capacity. In this way, researchers are now focusing their efforts in developing technologies that can deliver the nanoparticles directly into the tumor tissue. Particularly, hydrogels assembled using Thiol-Maleimide Michael type additions are emerging for this purpose due to their capacity to incorporate high nanoparticles' doses in a compact 3D structure as well as good chemical selectivity, biocompatibility, and straightforward preparation. Nevertheless, such hydrogels have been mostly prepared using synthetic polymers, which is not ideal due to their poor biodegradability. In this work, a novel natural polymer-based Thiol-Maleimide hydrogel was produced for application in breast cancer chemo-photothermal therapy. To obtain natural polymers compatible with this crosslinking chemistry, Hyaluronic acid was endowed with Thiol groups and deacetylated Chitosan was grafted with Maleimide groups. Parallelly, Doxorubicin loaded Dopamine-reduced graphene oxide (DOX/DOPA-rGO) was prepared for attaining Near Infrared (NIR) light responsive chemo-photothermal nanoagents. By simply mixing Hyaluronic Acid-Thiol, deacetylated Chitosan-Maleimide and DOX/DOPA-rGO, Thiol-Maleimide crosslinked hydrogels incorporating this nanomaterial could be assembled (DOX/DOPA-rGO@TMgel). When breast cancer cells were incubated with DOPA-rGO@TMgel and exposed to NIR light (photothermal therapy), their viability was reduced to about 59 %. On the other hand, DOX/DOPA-rGO@TMgel (chemotherapy) reduced cancer cells' viability to 50 %. In stark contrast, the combined action of DOX/DOPA-rGO@TMgel and NIR light decreased breast cancer cells' viability to just 21 %, highlighting its chemo-photothermal potential.
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Affiliation(s)
- Francisco J P Costa
- CICS-UBI - Centro de Investigação em Ciências da Saúde, Universidade da Beira Interior, 6200-506 Covilhã, Portugal
| | - Micaela Nave
- CICS-UBI - Centro de Investigação em Ciências da Saúde, Universidade da Beira Interior, 6200-506 Covilhã, Portugal
| | - Rita Lima-Sousa
- CICS-UBI - Centro de Investigação em Ciências da Saúde, Universidade da Beira Interior, 6200-506 Covilhã, Portugal
| | - Cátia G Alves
- CICS-UBI - Centro de Investigação em Ciências da Saúde, Universidade da Beira Interior, 6200-506 Covilhã, Portugal
| | - Bruna L Melo
- CICS-UBI - Centro de Investigação em Ciências da Saúde, Universidade da Beira Interior, 6200-506 Covilhã, Portugal
| | - Ilídio J Correia
- CICS-UBI - Centro de Investigação em Ciências da Saúde, Universidade da Beira Interior, 6200-506 Covilhã, Portugal; CIEPQPF - Departamento de Engenharia Química, Universidade de Coimbra, 3030-790 Coimbra, Portugal.
| | - Duarte de Melo-Diogo
- CICS-UBI - Centro de Investigação em Ciências da Saúde, Universidade da Beira Interior, 6200-506 Covilhã, Portugal.
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17
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Brady SR, Gohsman SB, Sepulveda K, Weaver JD. Engineering synthetic poly(ethylene) glycol-based hydrogels compatible with injection molding biofabrication. J Biomed Mater Res A 2023; 111:814-824. [PMID: 36866410 DOI: 10.1002/jbm.a.37523] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Revised: 02/15/2023] [Accepted: 02/20/2023] [Indexed: 03/04/2023]
Abstract
Hydrogel injection molding is a biofabrication method that is useful for the rapid generation of complex cell-laden hydrogel geometries, with potential utility in biomanufacturing products for tissue engineering applications. Hydrogel injection molding requires that hydrogel polymers have sufficiently delayed crosslinking times to enable injection and molding prior to gelation. In this work, we explore the feasibility of injection molding synthetic poly(ethylene) glycol (PEG)-based hydrogels functionalized with strain promoted azide-alkyne cycloaddition click chemistry functional groups. We evaluate the mechanical properties of a PEG-based hydrogel library, including time to gelation and successful generation of complex geometries via injection molding. We evaluate the binding and retention of adhesive ligand RGD within the library matrices and characterize the viability and function of encapsulated cells. This work demonstrates the feasibility of injection molding synthetic PEG-based hydrogels for tissue engineering applications, with potential utility in the clinic and biomanufacturing.
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Affiliation(s)
- Sarah R Brady
- School of Biological and Health Systems Engineering, Arizona State University, Tempe, Arizona, USA
| | - Simone B Gohsman
- School of Biological and Health Systems Engineering, Arizona State University, Tempe, Arizona, USA
| | - Keven Sepulveda
- School of Biological and Health Systems Engineering, Arizona State University, Tempe, Arizona, USA
| | - Jessica D Weaver
- School of Biological and Health Systems Engineering, Arizona State University, Tempe, Arizona, USA
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18
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Song J, Gao H, Zhang H, George OJ, Hillman AS, Fox JM, Jia X. Matrix Adhesiveness Regulates Myofibroblast Differentiation from Vocal Fold Fibroblasts in a Bio-orthogonally Cross-linked Hydrogel. ACS APPLIED MATERIALS & INTERFACES 2022; 14:51669-51682. [PMID: 36367478 PMCID: PMC10350853 DOI: 10.1021/acsami.2c13852] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Repeated mechanical and chemical insults cause an irreversible alteration of extracellular matrix (ECM) composition and properties, giving rise to vocal fold scarring that is refractory to treatment. Although it is well known that fibroblast activation to myofibroblast is the key to the development of the pathology, the lack of a physiologically relevant in vitro model of vocal folds impedes mechanistic investigations on how ECM cues promote myofibroblast differentiation. Herein, we describe a bio-orthogonally cross-linked hydrogel platform that recapitulates the alteration of matrix adhesiveness due to enhanced fibronectin deposition when vocal fold wound healing is initiated. The synthetic ECM (sECM) was established via the cycloaddition reaction of tetrazine (Tz) with slow (norbornene, Nb)- and fast (trans-cyclooctene, TCO)-reacting dienophiles. The relatively slow Tz-Nb ligation allowed the establishment of the covalent hydrogel network for 3D cell encapsulation, while the rapid and efficient Tz-TCO reaction enabled precise conjugation of the cell-adhesive RGDSP peptide in the hydrogel network. To mimic the dynamic changes of ECM composition during wound healing, RGDSP was conjugated to cell-laden hydrogel constructs via a diffusion-controlled bioorthognal ligation method 3 days post encapsulation. At a low RGDSP concentration (0.2 mM), fibroblasts residing in the hydrogel remained quiescent when maintained in transforming growth factor beta 1 (TGF-β1)-conditioned media. However, at a high concentration (2 mM), RGDSP potentiated TGF-β1-induced myofibroblast differentiation, as evidenced by the formation of an actin cytoskeleton network, including F-actin and alpha-smooth muscle actin. The RGDSP-driven fibroblast activation to myofibroblast was accompanied with an increase in the expression of wound healing-related genes, the secretion of profibrotic cytokines, and matrix contraction required for tissue remodeling. This work represents the first step toward the establishment of a 3D hydrogel-based cellular model for studying myofibroblast differentiation in a defined niche associated with vocal fold scarring.
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Affiliation(s)
- Jiyeon Song
- Department of Materials Science and Engineering, University of Delaware, Newark, Delaware, USA
| | - Hanyuan Gao
- Department of Materials Science and Engineering, University of Delaware, Newark, Delaware, USA
| | - He Zhang
- Department of Materials Science and Engineering, University of Delaware, Newark, Delaware, USA
| | - Olivia J. George
- Department of Materials Science and Engineering, University of Delaware, Newark, Delaware, USA
| | - Ashlyn S. Hillman
- Department of Chemistry and Biochemistry, University of Delaware, Newark, Delaware, USA
| | - Joseph. M. Fox
- Department of Materials Science and Engineering, University of Delaware, Newark, Delaware, USA
- Department of Chemistry and Biochemistry, University of Delaware, Newark, Delaware, USA
| | - Xinqiao Jia
- Department of Materials Science and Engineering, University of Delaware, Newark, Delaware, USA
- Department of Biomedical Engineering, University of Delaware, Newark, Delaware, USA
- Delaware Biotechnology Institute, 590 Avenue 1743, Newark, Delaware, USA
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19
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Widener AE, Duraivel S, Angelini TE, Phelps EA. Injectable Microporous Annealed Particle Hydrogel Based on Guest-Host-Interlinked Polyethylene Glycol Maleimide Microgels. ADVANCED NANOBIOMED RESEARCH 2022; 2:2200030. [PMID: 36419640 PMCID: PMC9678130 DOI: 10.1002/anbr.202200030] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Microporous annealed particle (MAP) hydrogels have emerged as a versatile biomaterial platform for regenerative medicine. MAP hydrogels have been used for the delivery of cells and organoids but often require annealing post injection by an external source. We engineered an injectable, self-annealing MAP hydrogel with reversible interparticle linkages based on guest-host functionalized polyethylene glycol maleimide (PEG-MAL) microgels. We evaluated the effect of guest-host linkages on different types of microgels fabricated by either batch emulsion or mechanical fragmentation methods. Batch emulsion generated small spherical microgels with controllable 10-100 μm diameters and mechanical fragmentation generated irregular microgels with larger diameters (100-200 μm). Spherical microgels (15 μm) showed self-healing behavior and completely recovered from high strain while fragmented microgels (133 μm) did not recover. Guest-host interactions significantly contributed to the mechanical properties of spherical microgels but had no effect on fragmented microgels. Spherical microgels were superior to the fragmented microgels for co-injection of immune cells and pancreatic islets due to their lower force of injection, demonstrating more homogeneously distributed cells and greater cell viability after injection. Based on these studies, the spherical guest-host MAP hydrogels provide a controllable, injectable scaffold for engineered microenvironments and cell delivery applications.
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Affiliation(s)
- Adrienne E Widener
- J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, Gainesville, FL, USA
| | - Senthilkumar Duraivel
- Department of Materials Science and Engineering, University of Florida, Gainesville, FL, USA
| | - Thomas E Angelini
- J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, Gainesville, FL, USA
- Department of Mechanical and Aerospace Engineering, University of Florida, Gainesville, FL, USA
| | - Edward A Phelps
- J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, Gainesville, FL, USA
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20
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Beskid NM, Kolawole EM, Coronel MM, Nguyen B, Evavold B, García AJ, Babensee JE. IL-10-Functionalized Hydrogels Support Immunosuppressive Dendritic Cell Phenotype and Function. ACS Biomater Sci Eng 2022; 8:4341-4353. [PMID: 36134725 DOI: 10.1021/acsbiomaterials.2c00465] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Biomaterial systems such as hydrogels enable localized delivery and postinjection modulation of cellular therapies in a wide array of contexts. Biomaterials as adjuvants have been an active area of investigation, but the study of functionalized biomaterials supporting immunosuppressive cell therapies for tolerogenic applications is still nascent. Here, we developed a 4-arm poly(ethylene-glycol)-maleimide (PEG-4MAL) hydrogel functionalized with interleukin-10 (IL-10) to improve the local delivery and efficacy of a cell therapy against autoimmune disease. The biophysical and biochemical properties of PEG-4MAL hydrogels were optimized to support dendritic cell (DC) viability and an immature phenotype. IL-10-functionalized PEG-4MAL (PEG-IL10) hydrogels exhibited controlled IL-10 release, extended the duration of DC support, and protected DCs from inflammatory assault. After incorporation in PEG-IL10 hydrogels, these DCs induced CD25+FoxP3+ regulatory T cells (Tregs) during in vitro coculture. These studies serve as a proof-of-concept for improving the efficacy of immunosuppressive cell therapies through biomaterial delivery. The flexible nature of this system enables its widespread application across a breadth of other tolerogenic applications for future investigation.
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Affiliation(s)
- Nicholas M Beskid
- George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, 801 Ferst Drive NW, Atlanta, Georgia 30318, United States.,Parker H. Petit Institute for Bioengineering and Bioscience, Georgia Institute of Technology, 315 Ferst Drive NW, Atlanta, Georgia 30332, United States
| | - Elizabeth M Kolawole
- Department of Pathology, University of Utah School of Medicine, 15 North Medical Drive East, Suite 1100, Salt Lake City, Utah 84112, United States
| | - María M Coronel
- George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, 801 Ferst Drive NW, Atlanta, Georgia 30318, United States.,Parker H. Petit Institute for Bioengineering and Bioscience, Georgia Institute of Technology, 315 Ferst Drive NW, Atlanta, Georgia 30332, United States
| | - Brandon Nguyen
- Parker H. Petit Institute for Bioengineering and Bioscience, Georgia Institute of Technology, 315 Ferst Drive NW, Atlanta, Georgia 30332, United States.,Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, 313 Ferst Drive NW, Atlanta, Georgia 30332, United States
| | - Brian Evavold
- Department of Pathology, University of Utah School of Medicine, 15 North Medical Drive East, Suite 1100, Salt Lake City, Utah 84112, United States
| | - Andrés J García
- George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, 801 Ferst Drive NW, Atlanta, Georgia 30318, United States.,Parker H. Petit Institute for Bioengineering and Bioscience, Georgia Institute of Technology, 315 Ferst Drive NW, Atlanta, Georgia 30332, United States
| | - Julia E Babensee
- Parker H. Petit Institute for Bioengineering and Bioscience, Georgia Institute of Technology, 315 Ferst Drive NW, Atlanta, Georgia 30332, United States.,Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, 313 Ferst Drive NW, Atlanta, Georgia 30332, United States
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21
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Lou J, Mooney DJ. Chemical strategies to engineer hydrogels for cell culture. Nat Rev Chem 2022; 6:726-744. [PMID: 37117490 DOI: 10.1038/s41570-022-00420-7] [Citation(s) in RCA: 88] [Impact Index Per Article: 44.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/27/2022] [Indexed: 12/12/2022]
Abstract
Two-dimensional and three-dimensional cell culture systems are widely used for biological studies, and are the basis of the organoid, tissue engineering and organ-on-chip research fields in applications such as disease modelling and drug screening. The natural extracellular matrix of tissues, a complex scaffold with varying chemical and mechanical properties, has a critical role in regulating important cellular functions such as spreading, migration, proliferation and differentiation, as well as tissue morphogenesis. Hydrogels are biomaterials that are used in cell culture systems to imitate critical features of a natural extracellular matrix. Chemical strategies to synthesize and tailor the properties of these hydrogels in a controlled manner, and manipulate their biological functions in situ, have been developed. In this Review, we provide the rational design criteria for predictably engineering hydrogels to mimic the properties of the natural extracellular matrix. We highlight the advances in using biocompatible strategies to engineer hydrogels for cell culture along with recent developments to dynamically control the cellular environment by exploiting stimuli-responsive chemistries. Finally, future opportunities to engineer hydrogels are discussed, in which the development of novel chemical methods will probably have an important role.
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22
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Dura G, Crespo-Cuadrado M, Waller H, Peters DT, Ferreira-Duarte A, Lakey JH, Fulton DA. Exploiting Meltable Protein Hydrogels to Encapsulate and Culture Cells in 3D. Macromol Biosci 2022; 22:e2200134. [PMID: 35780498 DOI: 10.1002/mabi.202200134] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Revised: 06/03/2022] [Indexed: 11/06/2022]
Abstract
There is a growing realization that 3D cell culture better mimics complex in vivo environments than 2D, lessening aberrant cellular behaviours and ultimately improving the outcomes of experiments. Chemically cross-linked hydrogels which imitate natural extracellular matrix (ECM) are proven cell culture platforms, but the encapsulation of cells within these hydrogel networks requires bioorthogonal cross-linking chemistries which can be cytotoxic, synthetically demanding and costly. Capsular antigen fragment 1 (Caf1) is a bacterial, polymeric, fimbrial protein which can be genetically engineered to imitate ECM. Furthermore, it can, reversibly, thermally interconvert between its polymeric and monomeric forms even when chemically cross-linked within a hydrogel network. We demonstrate that this meltable feature of Caf1 hydrogels can be utilized to encapsulate neonatal human dermal fibroblasts at a range of cell densities (2 × 105 - 2 × 106 cells/mL of hydrogel) avoiding issues with chemical cytotoxicity. These hydrogels supported cell 3D culture for up to 21 days, successfully inducing cellular functions such as proliferation and migration. This work is significant because it further highlights the potential of simple, robust, Caf1-based hydrogels as a cell culture platform. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Gema Dura
- Chemical Nanoscience Laboratory, Chemistry-School of Natural and Environmental Sciences, Newcastle University, Newcastle-upon-Tyne, NE1 7RU, UK.,Departamento de Química Inorgánica, Orgánica y Bioquímica, Facultad de Ciencias yTecnologías Químicas-IRICA, Universidad de Castilla-La Mancha, Avda. C. J. Cela, 10, Ciudad Real, 13071, Spain
| | - Maria Crespo-Cuadrado
- School of Engineering, Stephenson Building, Newcastle University, Newcastle upon Tyne, NE1 7RU
| | - Helen Waller
- Institute for Cell and Molecular Biosciences, Medical School, Newcastle University, Newcastle-upon-Tyne, NE1 7RU, UK
| | - Daniel T Peters
- Institute for Cell and Molecular Biosciences, Medical School, Newcastle University, Newcastle-upon-Tyne, NE1 7RU, UK
| | - Ana Ferreira-Duarte
- School of Engineering, Stephenson Building, Newcastle University, Newcastle upon Tyne, NE1 7RU
| | - Jeremy H Lakey
- Institute for Cell and Molecular Biosciences, Medical School, Newcastle University, Newcastle-upon-Tyne, NE1 7RU, UK
| | - David A Fulton
- Chemical Nanoscience Laboratory, Chemistry-School of Natural and Environmental Sciences, Newcastle University, Newcastle-upon-Tyne, NE1 7RU, UK
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23
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Alkekhia D, LaRose C, Shukla A. β-Lactamase-Responsive Hydrogel Drug Delivery Platform for Bacteria-Triggered Cargo Release. ACS APPLIED MATERIALS & INTERFACES 2022; 14:27538-27550. [PMID: 35675049 DOI: 10.1021/acsami.2c02614] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Antibiotic resistance is a growing public health threat that complicates the treatment of infections. β-Lactamase enzymes, which hydrolyze the β-lactam ring present in many common antibiotics, are a major cause of this resistance and are produced by a broad range of bacterial pathogens. Here, we developed hydrogels that degrade specifically in the presence of β-lactamases and β-lactamase-producing bacteria as a platform for bacteria-triggered drug delivery. A maleimide-functionalized β-lactamase-cleavable cephalosporin was used as a crosslinker in the fabrication of hydrogels through end-crosslinked polymerization with multiarm thiol-terminated poly(ethylene glycol) macromers via Michael-type addition. We demonstrated that only hydrogels containing the responsive crosslinker were degraded by β-lactamases and β-lactamase-producing bacteria in vitro and in an ex vivo porcine skin infection model. Fluorescent polystyrene nanoparticles, encapsulated in the hydrogels as model cargo, were released at rates that closely tracked hydrogel wet mass loss, confirming β-lactamase-triggered controlled cargo release. Nonresponsive hydrogels, lacking the β-lactam crosslinker, remained stable in the presence of β-lactamases and β-lactamase-producing bacteria and exhibited no change in mass or nanoparticle release. Furthermore, the responsive hydrogels remained stable in non-β-lactamase enzymes, including collagenases and lipases. These hydrogels have the potential to be used as a bacteria-triggered drug delivery system to control unnecessary exposure to encapsulated antimicrobials, which can provide effective infection treatment without exacerbating resistance.
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Affiliation(s)
- Dahlia Alkekhia
- School of Engineering, Center for Biomedical Engineering, Brown University, Providence, Rhode Island 02912, United States
| | - Cassi LaRose
- School of Engineering, Center for Biomedical Engineering, Brown University, Providence, Rhode Island 02912, United States
| | - Anita Shukla
- School of Engineering, Center for Biomedical Engineering, Brown University, Providence, Rhode Island 02912, United States
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24
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Development of a nanocapsule-loaded hydrogel for drug delivery for intraperitoneal administration. Int J Pharm 2022; 622:121828. [PMID: 35595041 DOI: 10.1016/j.ijpharm.2022.121828] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Revised: 05/01/2022] [Accepted: 05/09/2022] [Indexed: 11/22/2022]
Abstract
Intraperitoneal (IP) drug delivery of chemotherapeutic agents, administered through hyperthermal intraperitoneal chemotherapy (HIPEC) and pressurized intraperitoneal aerosolized chemotherapy (PIPAC), is effective for the treatment of peritoneal malignancies. However, these therapeutic interventions are cumbersome in terms of surgical practice and are often associated with the formation of peritoneal adhesions, due to the catheters inserted into the peritoneal cavity during these procedures. Hence, there is a need for the development of drug delivery systems that can be administered into the peritoneal cavity. In this study, we have developed a nanocapsule (NCs)-loaded hydrogel for drug delivery in the peritoneal cavity. The hydrogel has been developed using poly(ethylene glycol) (PEG) and thiol-maleimide chemistry. NCs-loaded hydrogels were characterized by rheology and their resistance to dilution and drug release were determined in vitro. Using IVIS® to measure individual organ and recovered gel fluorescence intensity, an in vivo imaging study was performed and demonstrated that NCs incorporated in the PEG gel were retained in the IP cavity for 24 h after IP administration. NCs-loaded PEG gels could find potential applications as biodegradable, drug delivery systems that could be implanted in the IP cavity, for example at a the tumour resection site to prevent recurrence of microscopic tumours.
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25
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LeValley PJ, Parsons AL, Sutherland BP, Kiick KL, Oakey JS, Kloxin AM. Microgels Formed by Spontaneous Click Chemistries Utilizing Microfluidic Flow Focusing for Cargo Release in Response to Endogenous or Exogenous Stimuli. Pharmaceutics 2022; 14:1062. [PMID: 35631649 PMCID: PMC9145542 DOI: 10.3390/pharmaceutics14051062] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2022] [Revised: 05/04/2022] [Accepted: 05/09/2022] [Indexed: 02/05/2023] Open
Abstract
Protein therapeutics have become increasingly popular for the treatment of a variety of diseases owing to their specificity to targets of interest. However, challenges associated with them have limited their use for a range of ailments, including the limited options available for local controlled delivery. To address this challenge, degradable hydrogel microparticles, or microgels, loaded with model biocargoes were created with tunable release profiles or triggered burst release using chemistries responsive to endogenous or exogeneous stimuli, respectively. Specifically, microfluidic flow-focusing was utilized to form homogenous microgels with different spontaneous click chemistries that afforded degradation either in response to redox environments for sustained cargo release or light for on-demand cargo release. The resulting microgels were an appropriate size to remain localized within tissues upon injection and were easily passed through a needle relevant for injection, providing means for localized delivery. Release of a model biopolymer was observed over the course of several weeks for redox-responsive formulations or triggered for immediate release from the light-responsive formulation. Overall, we demonstrate the ability of microgels to be formulated with different materials chemistries to achieve various therapeutic release modalities, providing new tools for creation of more complex protein release profiles to improve therapeutic regimens.
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Affiliation(s)
- Paige J. LeValley
- Chemical and Biomolecular Engineering, University of Delaware, Newark, DE 19716, USA; (P.J.L.); (B.P.S.)
| | - Amanda L. Parsons
- Chemical Engineering, University of Wyoming, Laramie, WY 82071, USA;
| | - Bryan P. Sutherland
- Chemical and Biomolecular Engineering, University of Delaware, Newark, DE 19716, USA; (P.J.L.); (B.P.S.)
| | - Kristi L. Kiick
- Materials Science and Engineering, University of Delaware, Newark, DE 19716, USA;
- Biomedical Engineering, University of Delaware, Newark, DE 19716, USA
| | - John S. Oakey
- Chemical Engineering, University of Wyoming, Laramie, WY 82071, USA;
| | - April M. Kloxin
- Chemical and Biomolecular Engineering, University of Delaware, Newark, DE 19716, USA; (P.J.L.); (B.P.S.)
- Materials Science and Engineering, University of Delaware, Newark, DE 19716, USA;
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26
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Han Y, Liu C, Xu H, Cao Y. Engineering reversible hydrogels for
3D
cell culture and release using diselenide catalyzed fast disulfide formation. CHINESE J CHEM 2022. [DOI: 10.1002/cjoc.202200099] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Yueying Han
- Collaborative Innovation Center of Advanced Microstructures, National Laboratory of Solid State Microstructure, Key Laboratory of Intelligent Optical Sensing and Manipulation, Ministry of Education, Department of Physics Nanjing University Nanjing Jiangsu 210093 China
- Jinan Microecological Biomedicine Shandong Laboratory Jinan Shandong 250021 China
| | - Cheng Liu
- Key Lab of Organic Optoelectronics and Molecular Engineering, Department of Chemistry Tsinghua University Beijing 100084 China
| | - Huaping Xu
- Key Lab of Organic Optoelectronics and Molecular Engineering, Department of Chemistry Tsinghua University Beijing 100084 China
| | - Yi Cao
- Collaborative Innovation Center of Advanced Microstructures, National Laboratory of Solid State Microstructure, Key Laboratory of Intelligent Optical Sensing and Manipulation, Ministry of Education, Department of Physics Nanjing University Nanjing Jiangsu 210093 China
- Jinan Microecological Biomedicine Shandong Laboratory Jinan Shandong 250021 China
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27
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Zhao Y, Xue P, Lin G, Tong M, Yang J, Zhang Y, Ran K, Zhuge D, Yao Q, Xu H. A KPV-binding double-network hydrogel restores gut mucosal barrier in an inflamed colon. Acta Biomater 2022; 143:233-252. [PMID: 35245681 DOI: 10.1016/j.actbio.2022.02.039] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2021] [Revised: 01/29/2022] [Accepted: 02/25/2022] [Indexed: 02/08/2023]
Abstract
Ulcerative colitis (UC) usually occurs in the superficial mucosa of the colorectum. Here, a double-network hydrogel (PMSP) was constructed from maleimided γ-polyglutamic acid and thiolated γ-polyglutamic acid through crosslinking of thiol-maleimide and self-oxidized thiols. PMSP with a negative charge specifically adhered to the inflamed mucosa with positively charged proteins rather than to the healthy mucosa. PMSP exhibited good mechanical strength with storage modulus (G') of 17.6 Pa and a linear viscoelastic region (LVR) of 107.2% strain. Moreover, PMSP showed a stronger bio-adhesive force toward the inflamed tissue-mimicking substrate than toward its healthy counterpart. In vivo imaging confirmed that PMSP specifically adhered to the inflamed colonic mucosa of rats with TNBS-induced UC. KPV (Lys-Pro-Val) as a model drug was easily captured by PMSP through electrostatic interactions, thus retaining its bioactivity for a longer time under high temperature conditions. Moreover, the alleviating effect of KPV on rats with TNBS-induced colitis was significantly improved by PMSP after intracolonic administration. The epithelial barrier of the colon also effectively recovered following PMSP-KPV treatment. PMSP-KPV also modulated the gut flora, markedly augmenting the abundance of beneficial microorganisms in gut homeostasis. The mechanism by which PMSP-KPV induces a therapeutic effect may be associated with the inhibition of oxidative stress. Conclusively, the PMSP hydrogel seems to be a promising rectal delivery system for the therapy of UC. STATEMENT OF SIGNIFICANCE: Ulcerative colitis (UC) is a chronic and relapsing disease of the gastrointestinal tract. A key therapeutic approach to treat UC is to repair the mucosal barriers. Here, a double-network hydrogel (PMSP) was constructed from maleimided and thiolated γ-polyglutamic acid through crosslinking of thiol-maleimide and self-oxidized thiols. The negatively charged PMSP specifically adhered to the inflamed colon rather than its healthy counterpart and was retained for a longer time. KPV as a model drug was easily captured by PMSP, which provided better stability to KPV when exposed to high temperature of 50 °C. The epithelial mucosal barrier of the colon was effectively recovered by the rectal administration of PMSP-KPV to rats with TNBS-induced UC. Moreover, PMSP-KPV modulated the gut flora of colitic rats, markedly augmenting the abundance of beneficial microorganisms. Conclusively, PMSP seems to be a promising rectal delivery system for UC therapy.
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28
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Jin M, Koçer G, Paez JI. Luciferin-Bioinspired Click Ligation Enables Hydrogel Platforms with Fine-Tunable Properties for 3D Cell Culture. ACS APPLIED MATERIALS & INTERFACES 2022; 14:5017-5032. [PMID: 35060712 DOI: 10.1021/acsami.1c22186] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
There is an increasing interest in coupling reactions for cross-linking of cell-encapsulating hydrogels under biocompatible, chemoselective, and tunable conditions. Inspired by the biosynthesis of luciferins in fireflies, here we exploit the cyanobenzothiazole-cysteine (CBT-Cys) click ligation to develop polyethylene glycol hydrogels as tunable scaffolds for cell encapsulation. Taking advantage of the chemoselectivity and versatility of CBT-Cys ligation, a highly flexible gel platform is reported here. We demonstrate luciferin-inspired hydrogels with important advantages for cell encapsulation applications: (i) gel precursors derived from inexpensive reagents and with good stability in aqueous solution (>4 weeks), (ii) adjustable gel mechanics within physiological ranges (E = 180-6240 Pa), (iii) easy tunability of the gelation rate (seconds to minutes) by external means, (iv) high microscale homogeneity, (v) good cytocompatibility, and (iv) regulable biological properties. These flexible and robust CBT-Cys hydrogels are proved as supportive matrices for 3D culture of different cell types, namely, fibroblasts and human mesenchymal stem cells. Our findings expand the toolkit of click chemistries for the fabrication of tunable biomaterials.
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Affiliation(s)
- Minye Jin
- INM-Leibniz Institute for New Materials, Campus D2-2, 66123 Saarbrücken, Germany
- Chemistry Department, Saarland University, 66123 Saarbrücken, Germany
| | - Gülistan Koçer
- INM-Leibniz Institute for New Materials, Campus D2-2, 66123 Saarbrücken, Germany
| | - Julieta I Paez
- INM-Leibniz Institute for New Materials, Campus D2-2, 66123 Saarbrücken, Germany
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29
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Mueller E, Poulin I, Bodnaryk WJ, Hoare T. Click Chemistry Hydrogels for Extrusion Bioprinting: Progress, Challenges, and Opportunities. Biomacromolecules 2022; 23:619-640. [PMID: 34989569 DOI: 10.1021/acs.biomac.1c01105] [Citation(s) in RCA: 26] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The emergence of 3D bioprinting has allowed a variety of hydrogel-based "bioinks" to be printed in the presence of cells to create precisely defined cell-loaded 3D scaffolds in a single step for advancing tissue engineering and/or regenerative medicine. While existing bioinks based primarily on ionic cross-linking, photo-cross-linking, or thermogelation have significantly advanced the field, they offer technical limitations in terms of the mechanics, degradation rates, and the cell viabilities achievable with the printed scaffolds, particularly in terms of aiming to match the wide range of mechanics and cellular microenvironments. Click chemistry offers an appealing solution to this challenge given that proper selection of the chemistry can enable precise tuning of both the gelation rate and the degradation rate, both key to successful tissue regeneration; simultaneously, the often bio-orthogonal nature of click chemistry is beneficial to maintain high cell viabilities within the scaffolds. However, to date, relatively few examples of 3D-printed click chemistry hydrogels have been reported, mostly due to the technical challenges of controlling mixing during the printing process to generate high-fidelity prints without clogging the printer. This review aims to showcase existing cross-linking modalities, characterize the advantages and disadvantages of different click chemistries reported, highlight current examples of click chemistry hydrogel bioinks, and discuss the design of mixing strategies to enable effective 3D extrusion bioprinting of click hydrogels.
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Affiliation(s)
- Eva Mueller
- Department of Chemical Engineering, McMaster University, 1280 Main Street West, Hamilton, Ontario L8S 4L7, Canada
| | - Isabelle Poulin
- Department of Chemical Engineering, McMaster University, 1280 Main Street West, Hamilton, Ontario L8S 4L7, Canada
| | - William James Bodnaryk
- Department of Chemical Engineering, McMaster University, 1280 Main Street West, Hamilton, Ontario L8S 4L7, Canada
| | - Todd Hoare
- Department of Chemical Engineering, McMaster University, 1280 Main Street West, Hamilton, Ontario L8S 4L7, Canada
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30
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Nakagawa S, Yoshie N. Star polymer networks: a toolbox for cross-linked polymers with controlled structure. Polym Chem 2022. [DOI: 10.1039/d1py01547h] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The synthesis of precisely controlled polymer networks has been a long-cherished dream of polymer scientists. Traditional random cross-linking strategies often lead to uncontrolled networks with various kinds of defects. Recent...
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31
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Jin M, Gläser A, Paez JI. Redox-triggerable firefly luciferin-bioinspired hydrogels as injectable and cell-encapsulating matrices. Polym Chem 2022. [DOI: 10.1039/d2py00481j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel redox-triggered bioinspired hydrogel platform that offers high control over gelation onset and kinetics is presented. This platform is suitable for the development of injectable matrices.
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Affiliation(s)
- Minye Jin
- INM – Leibniz Institute for New Materials, Campus D2-2, 66123, Saarbrücken, Germany
- Chemistry Department, Saarland University, 66123, Saarbrücken, Germany
- Developmental Bioengineering, University of Twente, Drienerlolaan 5, 7522 NB, Enschede, The Netherlands
| | - Alisa Gläser
- INM – Leibniz Institute for New Materials, Campus D2-2, 66123, Saarbrücken, Germany
| | - Julieta I. Paez
- INM – Leibniz Institute for New Materials, Campus D2-2, 66123, Saarbrücken, Germany
- Developmental Bioengineering, University of Twente, Drienerlolaan 5, 7522 NB, Enschede, The Netherlands
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32
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Ma Z, Qiu S, Chen HC, Zhang D, Lu YL, Chen XL. Maleimide structure: a promising scaffold for the development of antimicrobial agents. JOURNAL OF ASIAN NATURAL PRODUCTS RESEARCH 2022; 24:1-14. [PMID: 33511872 DOI: 10.1080/10286020.2021.1877675] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/04/2020] [Accepted: 01/13/2021] [Indexed: 06/12/2023]
Abstract
Natural compounds bearing maleimide rings are a series of secondary metabolites derived from fungi/marine microorganisms, which are characterized by a general structure -CO-N(R)-CO-, and the R group is normally substituted with alkyl or aryl groups. Maleimide compounds show various biological activities such as antibacterial, antifungal, and anticancer activity. In this review, the broad-spectrum antimicrobial activities of 15 maleimide compounds from natural sources and 32 artificially synthesized maleimides were summarized, especially against Candida albicans, Sclerotinia sclerotiorum, and Staphylococcus aureus. It highlights that maleimide scaffold has tremendous potential to be utilized in the development of novel antimicrobial agents.
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Affiliation(s)
- Zhi Ma
- Institute of Fermentation Engineering, Zhejiang University of Technology, Hangzhou 310014, China
- College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou 310014, China
| | - Shuo Qiu
- Institute of Fermentation Engineering, Zhejiang University of Technology, Hangzhou 310014, China
- College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou 310014, China
| | - Han-Chi Chen
- Institute of Fermentation Engineering, Zhejiang University of Technology, Hangzhou 310014, China
- College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou 310014, China
| | - Dong Zhang
- Institute of Fermentation Engineering, Zhejiang University of Technology, Hangzhou 310014, China
- College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou 310014, China
| | - Yue-Le Lu
- Institute of Fermentation Engineering, Zhejiang University of Technology, Hangzhou 310014, China
- College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou 310014, China
| | - Xiao-Long Chen
- Institute of Fermentation Engineering, Zhejiang University of Technology, Hangzhou 310014, China
- College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou 310014, China
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33
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Jansen LE, Kim H, Hall CL, McCarthy TP, Lee MJ, Peyton SR. A poly(ethylene glycol) three-dimensional bone marrow hydrogel. Biomaterials 2022; 280:121270. [PMID: 34890973 PMCID: PMC8890749 DOI: 10.1016/j.biomaterials.2021.121270] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Revised: 11/19/2021] [Accepted: 11/22/2021] [Indexed: 01/03/2023]
Abstract
Three-dimensional (3D) hydrogels made from synthetic polymers have emerged as in vitro cell culture platforms capable of representing the extracellular geometry, modulus, and water content of tissues in a tunable fashion. Hydrogels made from these otherwise non-bioactive polymers can be decorated with short peptides derived from proteins naturally found in tissues to support cell viability and direct phenotype. We identified two key limitations that limit the ability of this class of materials to recapitulate real tissue. First, these environments typically display between 1 and 3 bioactive peptides, which vastly underrepresents the diversity of proteins found in the extracellular matrix (ECM) of real tissues. Second, peptides chosen are ubiquitous in ECM and not derived from proteins found in specific tissues, per se. To overcome this critical limitation in hydrogel design and functionality, we developed an approach to incorporate the complex and specific protein signature of bone marrow into a poly (ethylene glycol) (PEG) hydrogel. This bone marrow hydrogel mimics the elasticity of marrow and has 20 bone marrow-specific and cell-instructive peptides. We propose this tissue-centric approach as the next generation of 3D hydrogel design for applications in tissue engineering and beyond.
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Affiliation(s)
- Lauren E Jansen
- Department of Chemical Engineering, University of Massachusetts Amherst, USA
| | - Hyuna Kim
- Molecular and Cellular Biology Graduate Program, University of Massachusetts Amherst, USA
| | - Christopher L Hall
- Department of Chemical Engineering, University of Massachusetts Amherst, USA
| | - Thomas P McCarthy
- Department of Chemical Engineering, University of Massachusetts Amherst, USA
| | - Michael J Lee
- Department of Systems Biology, University of Massachusetts Chan Medical School, Worcester, MA, USA
| | - Shelly R Peyton
- Department of Chemical Engineering, University of Massachusetts Amherst, USA; Molecular and Cellular Biology Graduate Program, University of Massachusetts Amherst, USA; Institute for Applied Life Sciences, University of Massachusetts Amherst 240 Thatcher Way, Life Sciences Laboratory N531, Amherst, MA, 01003, USA.
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34
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Lin CY, Battistoni CM, Liu JC. Redox-Responsive Hydrogels with Decoupled Initial Stiffness and Degradation. Biomacromolecules 2021; 22:5270-5280. [PMID: 34793135 DOI: 10.1021/acs.biomac.1c01180] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Disulfide-cross-linked hydrogels have been widely used for biological applications because of their degradability in response to redox stimuli. However, degradability often depends on polymer concentration, which also influences the hydrogel mechanical properties such as the initial stiffness. Here, we describe a one-pot cross-linking approach utilizing both a thiol-ene reaction through a Michael pathway with divinyl sulfone (DVS) to form non-reducible thioether bonds and thiol oxidation promoted by ferric ethylenediaminetetraacetic acid (Fe-EDTA) to form reducible disulfide bonds. The ratio between these two bonds was modulated by varying the DVS concentration used, and the initial shear or elastic modulus and degradation rate of the hydrogels were decoupled. These gels had tunable release rates of encapsulated dextran when exposed to 10 μM glutathione. Fibroblast encapsulation results suggested good cytocompatibility of the cross-linking reactions. This work shows the potential of combining DVS and Fe-EDTA to create thiol-cross-linked hydrogels as redox-responsive drug delivery vehicles and tissue engineering scaffolds with variable degradability.
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Affiliation(s)
- Charng-Yu Lin
- Davidson School of Chemical Engineering, Purdue University, West Lafayette, Indiana 47907, United States
| | - Carly M Battistoni
- Davidson School of Chemical Engineering, Purdue University, West Lafayette, Indiana 47907, United States
| | - Julie C Liu
- Davidson School of Chemical Engineering, Purdue University, West Lafayette, Indiana 47907, United States.,Weldon School of Biomedical Engineering, Purdue University, West Lafayette, Indiana 47907, United States
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35
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Fowler EW, Ravikrishnan A, Witt RL, Pradhan-Bhatt S, Jia X. RGDSP-Decorated Hyaluronate Hydrogels Facilitate Rapid 3D Expansion of Amylase-Expressing Salivary Gland Progenitor Cells. ACS Biomater Sci Eng 2021; 7:5749-5761. [PMID: 34781679 PMCID: PMC8680203 DOI: 10.1021/acsbiomaterials.1c00745] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
In vitro engineering of salivary glands relies on the availability of synthetic matrices presenting essential cell-instructive signals to guide tissue growth. Here, we describe a biomimetic, hyaluronic acid (HA)-based hydrogel platform containing covalently immobilized bioactive peptides derived from perlecan domain IV (TWSKV), laminin-111 (YIGSR, IKVAV), and fibronectin (RGDSP). The HA network was established by the thiol/acrylate reaction, and bioactive peptides were conjugated to the network with high efficiency without significantly altering the mechanical property of the matrix. When encapsulated as single cells in peptide-modified HA hydrogels, human salivary gland stem/progenitor cells (hS/PCs) spontaneously organized into multicellular spheroids with close cell-cell contacts. Conjugation of RGDSP and TWSKV signals in HA gels significantly accelerated cell proliferation, with the largest spheroids observed in RGDSP-tagged gels. Peptide conjugation did not significantly alter the expression of acinar (AMY1), ductal (TFCP2L1), and progenitor (KRT14) markers at the mRNA level. Characterization of three-dimensional (3D) cultures by immunocytochemistry showed positive staining for keratin-5 (K5), keratin-14 (K14), integrin-β1, and α-amylase under all culture conditions, confirming the maintenance of the secretory progenitor cell population. Two-dimensional (2D) adhesion studies revealed that integrin-β1 played a key role in facilitating cell-matrix interaction in gels with RGDSP, IKVAV, and TWSKV signals. Overall, conjugation of the RGDSP peptide to HA gels improved cell viability, accelerated the formation of epithelial spheroids, and promoted the expansion of the progenitor cell population in 3D. This work represents an essential first step toward the development of an engineered salivary gland.
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Affiliation(s)
- Eric W. Fowler
- Department of Materials Science and Engineering, 210 South College Ave., University of Delaware, Newark, Delaware, USA
| | - Anitha Ravikrishnan
- Department of Materials Science and Engineering, 210 South College Ave., University of Delaware, Newark, Delaware, USA
| | - Robert L. Witt
- Department of Otolaryngology–Head & Neck Surgery, 1020 Walnut St., Thomas Jefferson University, Philadelphia, Pennsylvania, USA,Center for Translational Cancer Research, 4701 Ogletown Stanton Rd., Helen F. Graham Cancer Center & Research Institute, Newark, Delaware, USA
| | - Swati Pradhan-Bhatt
- Center for Translational Cancer Research, 4701 Ogletown Stanton Rd., Helen F. Graham Cancer Center & Research Institute, Newark, Delaware, USA
| | - Xinqiao Jia
- Department of Materials Science and Engineering, 210 South College Ave., University of Delaware, Newark, Delaware, USA,Department of Biomedical Engineering, 210 South College Ave., University of Delaware, Newark, Delaware, USA,Delaware Biotechnology Institute, 590 Avenue 1743, Newark, Delaware, USA,To whom correspondence should be addressed: Xinqiao Jia, Department of Materials Science and Engineering, 210 South College Ave., University of Delaware, Newark, DE, 19716, USA. Phone: 302-831-6553, Fax: 302-831-4545,
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36
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Hauck N, Neuendorf TA, Männel MJ, Vogel L, Liu P, Stündel E, Zhang Y, Thiele J. Processing of fast-gelling hydrogel precursors in microfluidics by electrocoalescence of reactive species. SOFT MATTER 2021; 17:10312-10321. [PMID: 34664052 PMCID: PMC8612358 DOI: 10.1039/d1sm01176f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/11/2021] [Accepted: 10/12/2021] [Indexed: 06/13/2023]
Abstract
Microscopic hydrogels, also referred to as microgels, find broad application in life and materials science. A well-established technique for fabricating uniform microgels is droplet microfluidics. Here, optimal mixing of hydrogel precursor components is crucial to yield homogeneous microgels with respect to their morphology, mechanics, and distribution of functional moieties. However, when processing premixed polymer precursors that are highly reactive, fast or even instantaneous gelation inside fluid reservoirs or the microchannels of the flow cell commonly occurs, leading to an increase of fluid viscosity over time, and thus exacerbating the intrinsic control over fluid flow rates, droplet and microgel uniformity, which are key selling points of microfluidics in material design. To address these challenges, we utilize microflow cells with integrated electrodes, which enable fast addition and mixing of hydrogel precursors on demand by means of emulsion droplet coalescence. Here, two populations of surfactant-stabilized aqueous droplets - the first containing the material basis of the microgel, and the second containing another gel-forming component (e.g., a crosslinker) are formed at two consecutive microchannel junctions and merged via temporary thin-film instability. Our approach provides the ability to process such hydrogel systems that are otherwise challenging to process into uniform droplets and microgels by conventional droplet microfluidics. To demonstrate its versatility, we fabricate microgels with uniform shape and composition using fast hydrogelation via thiol-Michael addition reaction or non-covalent self-assembly. Furthermore, we elucidate the limitations of electrocoalescence of reactive hydrogel precursors by processing sodium alginate, crosslinked by calcium-induced ionic interactions. For this instantaneous type of hydrogelation, electrocoalescence of alginate and calcium ions does not result in the formation of morphologically isotropic microgels. Instead, it enables the creation of anisotropic microgel morphologies with tunable shape, which have previously only been achieved by selective crosslinking of elaborate higher-order emulsions or by aqueous two-phase systems as microgel templates.
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Affiliation(s)
- Nicolas Hauck
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Str. 6, 01069 Dresden, Germany.
| | - Talika A Neuendorf
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Str. 6, 01069 Dresden, Germany.
| | - Max J Männel
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Str. 6, 01069 Dresden, Germany.
| | - Lucas Vogel
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Str. 6, 01069 Dresden, Germany.
| | - Ping Liu
- B CUBE Center for Molecular Bioengineering, Technische Universität Dresden, Tatzberg 41, 01307 Dresden, Germany
| | - Enno Stündel
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Str. 6, 01069 Dresden, Germany.
| | - Yixin Zhang
- B CUBE Center for Molecular Bioengineering, Technische Universität Dresden, Tatzberg 41, 01307 Dresden, Germany
- Cluster of Excellence Physics of Life, TU Dresden, Dresden, Germany
| | - Julian Thiele
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Str. 6, 01069 Dresden, Germany.
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37
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Guo Y, Gu J, Jiang Y, Zhou Y, Zhu Z, Ma T, Cheng Y, Ji Z, Jiao Y, Xue B, Cao Y. Regulating the Homogeneity of Thiol-Maleimide Michael-Type Addition-Based Hydrogels Using Amino Biomolecules. Gels 2021; 7:gels7040206. [PMID: 34842701 PMCID: PMC8628763 DOI: 10.3390/gels7040206] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Revised: 11/08/2021] [Accepted: 11/09/2021] [Indexed: 01/24/2023] Open
Abstract
Poly(ethylene glycol) (PEG)-based synthetic hydrogels based on Michael-type addition reaction have been widely used for cell culture and tissue engineering. However, recent studies showed that these types of hydrogels were not homogenous as expected since micro domains generated due to the fast reaction kinetics. Here, we demonstrated a new kind of method to prepare homogenous poly(ethylene glycol) hydrogels based on Michael-type addition using the side chain amine-contained short peptides. By introducing such a kind of short peptides, the homogeneity of crosslinking and mechanical property of the hydrogels has been also significantly enhanced. The compressive mechanical and recovery properties of the homogeneous hydrogels prepared in the presence of side chain amine-contained short peptides were more reliable than those of inhomogeneous hydrogels while the excellent biocompatibility remained unchanged. Furthermore, the reaction rate and gelation kinetics of maleimide- and thiol-terminated PEG were proved to be significantly slowed down in the presence of the side chain amine-contained short peptides, thus leading to the improved homogeneity of the hydrogels. We anticipate that this new method can be widely applied to hydrogel preparation and modification based on Michael-type addition gelation.
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Affiliation(s)
- Yu Guo
- College of Life and Health Sciences, Northeastern University, Shenyang 110819, China; (Y.G.); (Z.J.)
| | - Jie Gu
- Department of Physics, Key Laboratory of Intelligent Optical Sensing and Manipulation, National Laboratory of Solid State Microstructure, Collaborative Innovation Center of Advanced Microstructures, Ministry of Education, Nanjing University, Nanjing 210093, China; (J.G.); (Y.J.); (Y.Z.); (Z.Z.); (T.M.); (Y.C.)
| | - Yuxin Jiang
- Department of Physics, Key Laboratory of Intelligent Optical Sensing and Manipulation, National Laboratory of Solid State Microstructure, Collaborative Innovation Center of Advanced Microstructures, Ministry of Education, Nanjing University, Nanjing 210093, China; (J.G.); (Y.J.); (Y.Z.); (Z.Z.); (T.M.); (Y.C.)
| | - Yanyan Zhou
- Department of Physics, Key Laboratory of Intelligent Optical Sensing and Manipulation, National Laboratory of Solid State Microstructure, Collaborative Innovation Center of Advanced Microstructures, Ministry of Education, Nanjing University, Nanjing 210093, China; (J.G.); (Y.J.); (Y.Z.); (Z.Z.); (T.M.); (Y.C.)
| | - Zhenshu Zhu
- Department of Physics, Key Laboratory of Intelligent Optical Sensing and Manipulation, National Laboratory of Solid State Microstructure, Collaborative Innovation Center of Advanced Microstructures, Ministry of Education, Nanjing University, Nanjing 210093, China; (J.G.); (Y.J.); (Y.Z.); (Z.Z.); (T.M.); (Y.C.)
| | - Tingting Ma
- Department of Physics, Key Laboratory of Intelligent Optical Sensing and Manipulation, National Laboratory of Solid State Microstructure, Collaborative Innovation Center of Advanced Microstructures, Ministry of Education, Nanjing University, Nanjing 210093, China; (J.G.); (Y.J.); (Y.Z.); (Z.Z.); (T.M.); (Y.C.)
| | - Yuanqi Cheng
- Department of Physics, Key Laboratory of Intelligent Optical Sensing and Manipulation, National Laboratory of Solid State Microstructure, Collaborative Innovation Center of Advanced Microstructures, Ministry of Education, Nanjing University, Nanjing 210093, China; (J.G.); (Y.J.); (Y.Z.); (Z.Z.); (T.M.); (Y.C.)
| | - Zongzhou Ji
- College of Life and Health Sciences, Northeastern University, Shenyang 110819, China; (Y.G.); (Z.J.)
| | - Yonghua Jiao
- College of Life and Health Sciences, Northeastern University, Shenyang 110819, China; (Y.G.); (Z.J.)
- Correspondence: (Y.J.); (B.X.); (Y.C.)
| | - Bin Xue
- Department of Physics, Key Laboratory of Intelligent Optical Sensing and Manipulation, National Laboratory of Solid State Microstructure, Collaborative Innovation Center of Advanced Microstructures, Ministry of Education, Nanjing University, Nanjing 210093, China; (J.G.); (Y.J.); (Y.Z.); (Z.Z.); (T.M.); (Y.C.)
- Correspondence: (Y.J.); (B.X.); (Y.C.)
| | - Yi Cao
- Department of Physics, Key Laboratory of Intelligent Optical Sensing and Manipulation, National Laboratory of Solid State Microstructure, Collaborative Innovation Center of Advanced Microstructures, Ministry of Education, Nanjing University, Nanjing 210093, China; (J.G.); (Y.J.); (Y.Z.); (Z.Z.); (T.M.); (Y.C.)
- Correspondence: (Y.J.); (B.X.); (Y.C.)
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38
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Bone Regeneration Using MMP-Cleavable Peptides-Based Hydrogels. Gels 2021; 7:gels7040199. [PMID: 34842679 PMCID: PMC8628702 DOI: 10.3390/gels7040199] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2021] [Revised: 10/27/2021] [Accepted: 11/03/2021] [Indexed: 12/16/2022] Open
Abstract
Accumulating evidence has suggested the significant potential of chemically modified hydrogels in bone regeneration. Despite the progress of bioactive hydrogels with different materials, structures and loading cargoes, the desires from clinical applications have not been fully validated. Multiple biological behaviors are orchestrated precisely during the bone regeneration process, including bone marrow mesenchymal stem cells (BMSCs) recruitment, osteogenic differentiation, matrix calcification and well-organized remodeling. Since matrix metalloproteinases play critical roles in such bone metabolism processes as BMSC commitment, osteoblast survival, osteoclast activation matrix calcification and microstructure remodeling, matrix metalloproteinase (MMP) cleavable peptides-based hydrogels could respond to various MMP levels and, thus, accelerate bone regeneration. In this review, we focused on the MMP-cleavable peptides, polymers, functional modification and crosslinked reactions. Applications, perspectives and limitations of MMP-cleavable peptides-based hydrogels for bone regeneration were then discussed.
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39
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Sheth S, Stealey S, Morgan NY, Zustiak SP. Microfluidic Chip Device for In Situ Mixing and Fabrication of Hydrogel Microspheres via Michael-Type Addition. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2021; 37:11793-11803. [PMID: 34597052 PMCID: PMC9447845 DOI: 10.1021/acs.langmuir.1c01739] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
Hydrogel microspheres are sought for a variety of biomedical applications, including therapeutic and cellular delivery, sensors, and lubricants. Robust fabrication of hydrogel microspheres with uniform sizes and properties can be achieved using microfluidic systems that rely on droplet formation and subsequent gelation to form microspheres. Such systems work well when gelation is initiated after droplet formation but are not practical for timed gelation systems where gelation is initiated prior to droplet formation; premature gelation can lead to device blockage, variable microsphere diameter due to viscosity changes in the precursor solution, and limited numbers of microspheres produced in a single run. To enable microfluidic fabrication of microspheres from timed gelation hydrogel systems, an in situ mixing region is needed so that various hydrogel precursor components can be added separately. Here, we designed and evaluated three mixing devices for their effectiveness at mixing hydrogel precursor solutions prior to droplet formation and subsequent gelation. The serpentine geometry was found to be the most effective and was further improved with the inclusion of a pillar array to increase agitation. The optimized device was shown to fully mix precursor solutions and enable the fabrication of monodisperse polyethylene glycol microspheres, offering great potential for use with timed gelation hydrogel systems.
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Affiliation(s)
- Saahil Sheth
- Department of Biomedical Engineering, Saint Louis University, St. Louis, MO, USA 63103
| | - Samuel Stealey
- Department of Biomedical Engineering, Saint Louis University, St. Louis, MO, USA 63103
| | - Nicole Y. Morgan
- Biomedical Engineering and Physical Science Shared Resource, National Institute of Biomedical Imaging and Bioengineering, National Institutes of Health, Bethesda, Maryland, USA 20814
| | - Silviya P. Zustiak
- Department of Biomedical Engineering, Saint Louis University, St. Louis, MO, USA 63103
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40
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Engineering hydrogels with homogeneous mechanical properties for controlling stem cell lineage specification. Proc Natl Acad Sci U S A 2021; 118:2110961118. [PMID: 34504006 PMCID: PMC8449376 DOI: 10.1073/pnas.2110961118] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/08/2021] [Indexed: 11/19/2022] Open
Abstract
Hydrogels are extensively used for cell culture, tissue engineering, and flexible electronics. In all of these applications, mechanical properties of hydrogels play an important role. Although tremendous studies have been devoted to optimizing the stiffness, strain, toughness, and dynamic mechanical response, the mechanical homogeneity of hydrogels has rarely been considered. By developing a general strategy to control the mechanical homogeneity of hydrogels, here we show that nanoscale variation in matrix stiffness can considerably affect the lineage specification of human embryonic stem cells. Inhomogeneous hydrogels suppress mechanotransduction and facilitate stemness maintenance, while homogenous hydrogels promote mechanotransduction and osteogenic differentiation. Therefore, engineering hydrogels with controllable and well-defined nanoscale homogeneity may have considerable implications in stem cell culture and regenerative medicine. The extracellular matrix (ECM) is mechanically inhomogeneous due to the presence of a wide spectrum of biomacromolecules and hierarchically assembled structures at the nanoscale. Mechanical inhomogeneity can be even more pronounced under pathological conditions due to injury, fibrogenesis, or tumorigenesis. Although considerable progress has been devoted to engineering synthetic hydrogels to mimic the ECM, the effect of the mechanical inhomogeneity of hydrogels has been widely overlooked. Here, we develop a method based on host–guest chemistry to control the homogeneity of maleimide–thiol cross-linked poly(ethylene glycol) hydrogels. We show that mechanical homogeneity plays an important role in controlling the differentiation or stemness maintenance of human embryonic stem cells. Inhomogeneous hydrogels disrupt actin assembly and lead to reduced YAP activation levels, while homogeneous hydrogels promote mechanotransduction. Thus, the method we developed to minimize the mechanical inhomogeneity of hydrogels may have broad applications in cell culture and tissue engineering.
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41
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Hui E, Sumey JL, Caliari SR. Click-functionalized hydrogel design for mechanobiology investigations. MOLECULAR SYSTEMS DESIGN & ENGINEERING 2021; 6:670-707. [PMID: 36338897 PMCID: PMC9631920 DOI: 10.1039/d1me00049g] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
The advancement of click-functionalized hydrogels in recent years has coincided with rapid growth in the fields of mechanobiology, tissue engineering, and regenerative medicine. Click chemistries represent a group of reactions that possess high reactivity and specificity, are cytocompatible, and generally proceed under physiologic conditions. Most notably, the high level of tunability afforded by these reactions enables the design of user-controlled and tissue-mimicking hydrogels in which the influence of important physical and biochemical cues on normal and aberrant cellular behaviors can be independently assessed. Several critical tissue properties, including stiffness, viscoelasticity, and biomolecule presentation, are known to regulate cell mechanobiology in the context of development, wound repair, and disease. However, many questions still remain about how the individual and combined effects of these instructive properties regulate the cellular and molecular mechanisms governing physiologic and pathologic processes. In this review, we discuss several click chemistries that have been adopted to design dynamic and instructive hydrogels for mechanobiology investigations. We also chart a path forward for how click hydrogels can help reveal important insights about complex tissue microenvironments.
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Affiliation(s)
- Erica Hui
- Department of Chemical Engineering, University of Virginia, 102 Engineer's Way, Charlottesville, Virginia 22904, USA
| | - Jenna L Sumey
- Department of Chemical Engineering, University of Virginia, 102 Engineer's Way, Charlottesville, Virginia 22904, USA
| | - Steven R Caliari
- Department of Chemical Engineering, University of Virginia, 102 Engineer's Way, Charlottesville, Virginia 22904, USA
- Department of Biomedical Engineering, University of Virginia, Charlottesville, Virginia 22904, USA
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42
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Huang S, Kim K, Musgrave GM, Sharp M, Sinha J, Stansbury JW, Musgrave CB, Bowman CN. Determining Michael Acceptor Reactivity from Kinetic, Mechanistic, and Computational Analysis for the Base-catalyzed Thiol-Michael Reaction. Polym Chem 2021; 12:3619-3628. [PMID: 34484433 PMCID: PMC8409055 DOI: 10.1039/d1py00363a] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A combined experimental and computational study of the reactivities of seven commonly used Michael acceptors paired with two thiols within the framework of photobase-catalyzed thiol-Michael reactions is reported. The rate coefficients of the propagation (kP), reverse propagation (k-P), chain-transfer (kCT), and overall reaction (koverall) were experimentally determined and compared with the well-accepted electrophilicity parameters of Mayr and Parr, and DFT-calculated energetics. Both Mayr's and Parr's electrophilicity parameters predict the reactivities of these structurally varying vinyl functional groups well, covering a range of overall reaction rate coefficients from 0.5 to 6.2 s-1. To gain insight into the individual steps, the relative energies have been calculated using DFT for each of the stationary points along this step-growth reaction between ethanethiol and the seven alkenes. The free energies of the individual steps reveal the underlying factors that control the reaction barriers for propagation and chain transfer. Both the propagation and chain transfer steps are under kinetic control. These results serve as a useful guide for Michael acceptor selection to design and predict thiol-Michael-based materials with appropriate kinetic and material properties.
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Affiliation(s)
- Sijia Huang
- Department of Chemical and Biological Engineering, University of Colorado Boulder, 596 UCB, Boulder, CO 80309-0596, United States
| | - Kangmin Kim
- Department of Chemistry, University of Colorado Boulder, 596 UCB, Boulder, CO 80309-0596, United States
| | - Grant M Musgrave
- Department of Chemical and Biological Engineering, University of Colorado Boulder, 596 UCB, Boulder, CO 80309-0596, United States
| | - Marcus Sharp
- Department of Chemical and Biological Engineering, University of Colorado Boulder, 596 UCB, Boulder, CO 80309-0596, United States
| | - Jasmine Sinha
- Department of Chemical and Biological Engineering, University of Colorado Boulder, 596 UCB, Boulder, CO 80309-0596, United States
| | - Jeffrey W Stansbury
- Department of Chemical and Biological Engineering, University of Colorado Boulder, 596 UCB, Boulder, CO 80309-0596, United States
- Materials Science and Engineering Program, University of Colorado Boulder, Boulder, Colorado 80309, United States
- School of Dental Medicine, Craniofacial Biology, University of Colorado Denver, Aurora, Colorado 80045, United States
| | - Charles B Musgrave
- Department of Chemical and Biological Engineering, University of Colorado Boulder, 596 UCB, Boulder, CO 80309-0596, United States
- Department of Chemistry, University of Colorado Boulder, 596 UCB, Boulder, CO 80309-0596, United States
- Materials Science and Engineering Program, University of Colorado Boulder, Boulder, Colorado 80309, United States
| | - Christopher N Bowman
- Department of Chemical and Biological Engineering, University of Colorado Boulder, 596 UCB, Boulder, CO 80309-0596, United States
- Materials Science and Engineering Program, University of Colorado Boulder, Boulder, Colorado 80309, United States
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43
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Speer JE, Barcellona MN, Lu MY, Zha Z, Jing L, Gupta MC, Buchowski JM, Kelly MP, Setton LA. Development of a library of laminin-mimetic peptide hydrogels for control of nucleus pulposus cell behaviors. J Tissue Eng 2021; 12:20417314211021220. [PMID: 34188794 PMCID: PMC8211742 DOI: 10.1177/20417314211021220] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2021] [Accepted: 05/12/2021] [Indexed: 12/15/2022] Open
Abstract
The nucleus pulposus (NP) of the intervertebral disc plays a critical role in
distributing mechanical loads to the axial skeleton. Alterations in NP cells and,
consequently, NP matrix are some of the earliest changes in the development of disc
degeneration. Previous studies demonstrated a role for laminin-presenting biomaterials in
promoting a healthy phenotype for human NP cells from degenerated tissue. Here we
investigate the use of laminin-mimetic peptides presented individually or in combination
on a poly(ethylene) glycol hydrogel as a platform to modulate the behaviors of
degenerative human NP cells. Data confirm that NP cells attach to select laminin-mimetic
peptides that results in cell signaling downstream of integrin and syndecan binding.
Furthermore, the peptide-functionalized hydrogels demonstrate an ability to promote cell
behaviors that mimic that of full-length laminins. These results identify a set of
peptides that can be used to regulate NP cell behaviors toward a regenerative engineering
strategy.
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Affiliation(s)
- Julie E Speer
- Department of Biomedical Engineering, Washington University in St. Louis, St. Louis, MO, USA
| | - Marcos N Barcellona
- Department of Biomedical Engineering, Washington University in St. Louis, St. Louis, MO, USA
| | - Michael Y Lu
- Department of Biomedical Engineering, Washington University in St. Louis, St. Louis, MO, USA
| | - Zizhen Zha
- Department of Biomedical Engineering, Washington University in St. Louis, St. Louis, MO, USA
| | - Liufang Jing
- Department of Biomedical Engineering, Washington University in St. Louis, St. Louis, MO, USA
| | - Munish C Gupta
- Department of Orthopaedic Surgery, Washington University School of Medicine, St. Louis, MO, USA
| | - Jacob M Buchowski
- Department of Orthopaedic Surgery, Washington University School of Medicine, St. Louis, MO, USA
| | - Michael P Kelly
- Department of Orthopaedic Surgery, Washington University School of Medicine, St. Louis, MO, USA
| | - Lori A Setton
- Department of Biomedical Engineering, Washington University in St. Louis, St. Louis, MO, USA.,Department of Orthopaedic Surgery, Washington University School of Medicine, St. Louis, MO, USA
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44
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Paez JI, de Miguel-Jiménez A, Valbuena-Mendoza R, Rathore A, Jin M, Gläser A, Pearson S, Del Campo A. Thiol-Methylsulfone-Based Hydrogels for Cell Encapsulation: Reactivity Optimization of Aryl-Methylsulfone Substrate for Fine-Tunable Gelation Rate and Improved Stability. Biomacromolecules 2021; 22:2874-2886. [PMID: 34096259 DOI: 10.1021/acs.biomac.1c00256] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Hydrogels are widely used as hydrated matrices for cell encapsulation in a number of applications, spanning from advanced 3D cultures and tissue models to cell-based therapeutics and tissue engineering. Hydrogel formation in the presence of living cells requires cross-linking reactions that proceed efficiently under close to physiological conditions. Recently, the nucleophilic aromatic substitution of phenyl-oxadiazole (Ox) methylsulfones (MS) by thiols was introduced as a new cross-linking reaction for cell encapsulation. Reported poly(ethylene glycol) (PEG)-based hydrogels featured tunable gelation times within seconds to a few minutes within pH 8.0 to 6.6 and allowed reasonably good mixing with cells. However, their rapid degradation prevented cell cultures to be maintained beyond 1 week. In this Article, we present the reactivity optimization of the heteroaromatic ring of the MS partner to slow down the cross-linking kinetics and the degradability of the derived hydrogels. New MS substrates based on phenyl-tetrazole (Tz) and benzothiazole (Bt) rings, with lower electrophilicity than Ox, were synthesized by simple pathways. When mixed with PEG-thiol, the novel PEG-MS extended the working time of precursor mixtures and allowed longer term cell culture. The Tz-based MS substrate was identified as the best candidate, as it is accessible by simple chemical reactions from cost-effective reactants, hydrogel precursors show good stability in aqueous solution and keep high chemoselectivity for thiols, and the derived Tz gels support cell cultures for >2 weeks. The Tz system also shows tunable gelation kinetics within seconds to hours and allows comfortable manipulation and cell encapsulation. Our findings expand the toolkit of thiol-mediated chemistry for the synthesis of hydrogels with improved properties for laboratory handling and future automatization.
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Affiliation(s)
- Julieta I Paez
- INM - Leibniz Institute for New Materials, Campus D2-2, 66123, Saarbrücken, Germany
| | - Adrián de Miguel-Jiménez
- INM - Leibniz Institute for New Materials, Campus D2-2, 66123, Saarbrücken, Germany.,Saarland University, Chemistry Department, 66123 Saarbrücken, Germany
| | - Rocío Valbuena-Mendoza
- INM - Leibniz Institute for New Materials, Campus D2-2, 66123, Saarbrücken, Germany.,Saarland University, Chemistry Department, 66123 Saarbrücken, Germany
| | - Aditi Rathore
- INM - Leibniz Institute for New Materials, Campus D2-2, 66123, Saarbrücken, Germany
| | - Minye Jin
- INM - Leibniz Institute for New Materials, Campus D2-2, 66123, Saarbrücken, Germany.,Saarland University, Chemistry Department, 66123 Saarbrücken, Germany
| | - Alisa Gläser
- INM - Leibniz Institute for New Materials, Campus D2-2, 66123, Saarbrücken, Germany
| | - Samuel Pearson
- INM - Leibniz Institute for New Materials, Campus D2-2, 66123, Saarbrücken, Germany
| | - Aránzazu Del Campo
- INM - Leibniz Institute for New Materials, Campus D2-2, 66123, Saarbrücken, Germany.,Saarland University, Chemistry Department, 66123 Saarbrücken, Germany
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45
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Palmese LL, Fan M, Scott RA, Tan H, Kiick KL. Multi-stimuli-responsive, liposome-crosslinked poly(ethylene glycol) hydrogels for drug delivery. JOURNAL OF BIOMATERIALS SCIENCE. POLYMER EDITION 2021; 32:635-656. [PMID: 33231137 PMCID: PMC8659393 DOI: 10.1080/09205063.2020.1855392] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Revised: 11/21/2020] [Accepted: 11/21/2020] [Indexed: 12/12/2022]
Abstract
The development of hybrid hydrogels has been of great interest over recent decades, especially in the field of biomaterials. Such hydrogels provide various opportunities in tissue engineering, drug delivery, and regenerative medicine due to their ability to mimic cellular environments, sequester and release therapeutic agents, and respond to stimuli. Herein we report the synthesis and characterization of an injectable poly(ethylene glycol) hydrogel crosslinked via thiol-maleimide reactions and containing both chemically crosslinked temperature-sensitive liposomes (TSLs) and matrix metalloproteinase-sensitive peptide crosslinks. Rheological studies demonstrate that the hydrogel is mechanically stable and can be synthesized to achieve a range of physically applicable moduli. Experiments characterizing the in situ drug delivery and degradation of these materials indicate that the TSL gel responds to both thermal and enzymatic stimuli in a local environment. Doxorubicin, a widely used anticancer drug, was loaded in the TSLs with a high encapsulation efficiency and the subsequent release was temperature dependent. Finally, TSLs did not compromise viability and proliferation of human and murine fibroblasts, supporting the use of these hydrogel-linked liposomes as a thermo-responsive drug carrier for controlled release.
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Affiliation(s)
- Luisa L Palmese
- Department of Materials Science and Engineering, University of Delaware, Newark, DE, USA
- Delaware Biotechnology Institute, University of Delaware, Newark, DE, USA
| | - Ming Fan
- School of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing, China
| | - Rebecca A Scott
- Department of Materials Science and Engineering, University of Delaware, Newark, DE, USA
- Delaware Biotechnology Institute, University of Delaware, Newark, DE, USA
| | - Huaping Tan
- School of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing, China
| | - Kristi L Kiick
- Department of Materials Science and Engineering, University of Delaware, Newark, DE, USA
- Delaware Biotechnology Institute, University of Delaware, Newark, DE, USA
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46
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Widener AE, Bhatta M, Angelini TE, Phelps EA. Guest-host interlinked PEG-MAL granular hydrogels as an engineered cellular microenvironment. Biomater Sci 2021; 9:2480-2493. [PMID: 33432940 DOI: 10.1039/d0bm01499k] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
We report the development of a polyethylene glycol (PEG) hydrogel scaffold that provides the advantages of conventional bulk PEG hydrogels for engineering cellular microenvironments and allows for rapid cell migration. PEG microgels were used to assemble a densely packed granular system with an intrinsic interstitium-like negative space. In this material, guest-host molecular interactions provide reversible non-covalent linkages between discrete PEG microgel particles to form a cohesive bulk material. In guest-host chemistry, different guest molecules reversibly and non-covalently interact with their cyclic host molecules. Two species of PEG microgels were made, each with one functional group at the end of the four arm PEG-MAL functionalized using thiol click chemistry. The first was functionalized with the host molecule β-cyclodextrin, a cyclic oligosaccharide of repeating d-glucose units, and the other functionalized with the guest molecule adamantane. These two species provide a reversible guest-host interaction between microgel particles when mixed, generating an interlinked network with a percolated interstitium. We showed that this granular configuration, unlike conventional bulk PEG hydrogels, enabled the rapid migration of THP-1 monocyte cells. The guest-host microgels also exhibited shear-thinning behavior, providing a unique advantage over current bulk PEG hydrogels.
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Affiliation(s)
- Adrienne E Widener
- J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, Gainesville, FL, USA.
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Reidy E, Leonard NA, Treacy O, Ryan AE. A 3D View of Colorectal Cancer Models in Predicting Therapeutic Responses and Resistance. Cancers (Basel) 2021; 13:E227. [PMID: 33435170 PMCID: PMC7827038 DOI: 10.3390/cancers13020227] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2020] [Revised: 01/05/2021] [Accepted: 01/07/2021] [Indexed: 12/12/2022] Open
Abstract
Although there have been many advances in recent years for the treatment of colorectal cancer (CRC), it still remains the third most common cause of cancer-related deaths worldwide. Many patients with late stage CRC display resistance to multiple different therapeutics. An important aspect in developing effective therapeutics for CRC patients is understanding the interactions that take place in the tumor microenvironment (TME), as it has been shown to contribute to drug resistance in vivo. Much research over the past 100 years has focused on 2D monolayer cultures or in vivo studies, however, the efficacy in translating these to the clinic is very low. More recent studies are turning towards developing an effective 3D model of CRC that is clinically relevant, that can recapitulate the TME in vitro and bridge the gap between 2D cultures and in vivo studies, with the aim of reducing the use of animal models in the future. This review summarises the advantages and limitations of different 3D CRC models. It emphasizes how different 3D models may be optimised to study cellular and extracellular interactions that take place in the TME of CRC in an effort to allow the development of more translatable effective treatment options for patients.
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Affiliation(s)
- Eileen Reidy
- Lambe Institute for Translational research, School of Medicine, College of Medicine, Nursing and Health Sciences, National University of Ireland Galway, H91 V4AY Galway, Ireland; (E.R.); (N.A.L.); (O.T.)
- Regenerative Medicine Institute (REMEDI), School of Medicine, College of Medicine, Nursing and Health Sciences, National University of Ireland Galway, H91 W2TY Galway, Ireland
- Discipline of Pharmacology and Therapeutics, School of Medicine, College of Medicine, Nursing and Health Sciences, National University of Ireland Galway, H91 W5P7 Galway, Ireland
- CÚRAM, SFI Research Centre for Medical Devices, NUI Galway, H91 W2TY Galway, Ireland
| | - Niamh A. Leonard
- Lambe Institute for Translational research, School of Medicine, College of Medicine, Nursing and Health Sciences, National University of Ireland Galway, H91 V4AY Galway, Ireland; (E.R.); (N.A.L.); (O.T.)
- Regenerative Medicine Institute (REMEDI), School of Medicine, College of Medicine, Nursing and Health Sciences, National University of Ireland Galway, H91 W2TY Galway, Ireland
- Discipline of Pharmacology and Therapeutics, School of Medicine, College of Medicine, Nursing and Health Sciences, National University of Ireland Galway, H91 W5P7 Galway, Ireland
| | - Oliver Treacy
- Lambe Institute for Translational research, School of Medicine, College of Medicine, Nursing and Health Sciences, National University of Ireland Galway, H91 V4AY Galway, Ireland; (E.R.); (N.A.L.); (O.T.)
- Regenerative Medicine Institute (REMEDI), School of Medicine, College of Medicine, Nursing and Health Sciences, National University of Ireland Galway, H91 W2TY Galway, Ireland
- Discipline of Pharmacology and Therapeutics, School of Medicine, College of Medicine, Nursing and Health Sciences, National University of Ireland Galway, H91 W5P7 Galway, Ireland
| | - Aideen E. Ryan
- Lambe Institute for Translational research, School of Medicine, College of Medicine, Nursing and Health Sciences, National University of Ireland Galway, H91 V4AY Galway, Ireland; (E.R.); (N.A.L.); (O.T.)
- Regenerative Medicine Institute (REMEDI), School of Medicine, College of Medicine, Nursing and Health Sciences, National University of Ireland Galway, H91 W2TY Galway, Ireland
- Discipline of Pharmacology and Therapeutics, School of Medicine, College of Medicine, Nursing and Health Sciences, National University of Ireland Galway, H91 W5P7 Galway, Ireland
- CÚRAM, SFI Research Centre for Medical Devices, NUI Galway, H91 W2TY Galway, Ireland
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48
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Duarte Campos DF, De Laporte L. Digitally Fabricated and Naturally Augmented In Vitro Tissues. Adv Healthc Mater 2021; 10:e2001253. [PMID: 33191651 DOI: 10.1002/adhm.202001253] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Revised: 10/04/2020] [Indexed: 01/29/2023]
Abstract
Human in vitro tissues are extracorporeal 3D cultures of human cells embedded in biomaterials, commonly hydrogels, which recapitulate the heterogeneous, multiscale, and architectural environment of the human body. Contemporary strategies used in 3D tissue and organ engineering integrate the use of automated digital manufacturing methods, such as 3D printing, bioprinting, and biofabrication. Human tissues and organs, and their intra- and interphysiological interplay, are particularly intricate. For this reason, attentiveness is rising to intersect materials science, medicine, and biology with arts and informatics. This report presents advances in computational modeling of bioink polymerization and its compatibility with bioprinting, the use of digital design and fabrication in the development of fluidic culture devices, and the employment of generative algorithms for modeling the natural and biological augmentation of in vitro tissues. As a future direction, the use of serially linked in vitro tissues as human body-mimicking systems and their application in drug pharmacokinetics and metabolism, disease modeling, and diagnostics are discussed.
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Affiliation(s)
- Daniela F. Duarte Campos
- Department of Advanced Materials for Biomedicine Institute of Applied Medical Engineering RWTH Aachen University Aachen 52074 Germany
| | - Laura De Laporte
- Department of Advanced Materials for Biomedicine Institute of Applied Medical Engineering RWTH Aachen University Aachen 52074 Germany
- DWI—Leibniz Institute for Interactive Materials Aachen 52074 Germany
- Department of Technical and Macromolecular Chemistry RWTH Aachen University Aachen 52074 Germany
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49
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Dura G, Peters DT, Waller H, Yemm AI, Perkins ND, Ferreira AM, Crespo-Cuadrado M, Lakey JH, Fulton DA. A Thermally Reformable Protein Polymer. Chem 2020. [DOI: 10.1016/j.chempr.2020.09.020] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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50
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Ritzau-Reid KI, Spicer CD, Gelmi A, Grigsby CL, Ponder JF, Bemmer V, Creamer A, Vilar R, Serio A, Stevens MM. An Electroactive Oligo-EDOT Platform for Neural Tissue Engineering. ADVANCED FUNCTIONAL MATERIALS 2020; 30:2003710. [PMID: 34035794 PMCID: PMC7610826 DOI: 10.1002/adfm.202003710] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Indexed: 05/04/2023]
Abstract
The unique electrochemical properties of the conductive polymer poly(3,4-ethylenedioxythiophene):polystyrene sulfonate (PEDOT:PSS) make it an attractive material for use in neural tissue engineering applications. However, inadequate mechanical properties, and difficulties in processing and lack of biodegradability have hindered progress in this field. Here, the functionality of PEDOT:PSS for neural tissue engineering is improved by incorporating 3,4-ethylenedioxythiophene (EDOT) oligomers, synthesized using a novel end-capping strategy, into block co-polymers. By exploiting end-functionalized oligoEDOT constructs as macroinitiators for the polymerization of poly(caprolactone), a block co-polymer is produced that is electroactive, processable, and bio-compatible. By combining these properties, electroactive fibrous mats are produced for neuronal culture via solution electrospinning and melt electrospinning writing. Importantly, it is also shown that neurite length and branching of neural stem cells can be enhanced on the materials under electrical stimulation, demonstrating the promise of these scaffolds for neural tissue engineering.
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Affiliation(s)
- Kaja I. Ritzau-Reid
- Department of Materials, Department of Bioengineering, Institute of
Biomedical Engineering, Imperial College London, London SW7 2AZ, UK
| | - Christopher D. Spicer
- Department of Materials, Department of Bioengineering, Institute of
Biomedical Engineering, Imperial College London, London SW7 2AZ, UK;
Department of Medical Biochemistry and Biophysics, Karolinska Institutet,
Stockholm 171 77, Sweden; Department of Chemistry, York Biomedical Research
Institute, University of York, Heslington YO10 5DD, UK
| | - Amy Gelmi
- Department of Materials, Department of Bioengineering, Institute of
Biomedical Engineering, Imperial College London, London SW7 2AZ, UK; Applied
Chemistry and Environmental Science, School of Science, RMIT University,
Melbourne 3000, Australia
| | - Christopher L. Grigsby
- Department of Medical Biochemistry and Biophysics, Karolinska
Institutet, Stockholm 171 77, Sweden
| | - James F. Ponder
- Department of Chemistry, Imperial College London, London SW7 2AZ,
UK
| | - Victoria Bemmer
- Department of Materials, Department of Bioengineering, Institute of
Biomedical Engineering, Imperial College London, London SW7 2AZ, UK
| | - Adam Creamer
- Department of Materials, Department of Bioengineering, Institute of
Biomedical Engineering, Imperial College London, London SW7 2AZ, UK
| | - Ramon Vilar
- Department of Chemistry, Imperial College London, London SW7 2AZ,
UK
| | - Andrea Serio
- Department of Materials, Department of Bioengineering, Institute of
Biomedical Engineering, Imperial College London, London SW7 2AZ, UK; Centre
for Craniofacial & Regenerative Biology, King’s College London
and The Francis Crick Institute, Tissue Engineering and Biophotonics
Division, Dental Institute, King’s College London, London SE1 9RT,
UK
| | - Molly M. Stevens
- Department of Materials, Department of Bioengineering, Institute
of Biomedical Engineering, Imperial College London, London SW7 2AZ, UK;
Department of Medical Biochemistry and Biophysics, Karolinska Institutet,
Stockholm 171 77, Sweden
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