1
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Gharios R, Francis RM, DeForest CA. Chemical and Biological Engineering Strategies to Make and Modify Next-Generation Hydrogel Biomaterials. MATTER 2023; 6:4195-4244. [PMID: 38313360 PMCID: PMC10836217 DOI: 10.1016/j.matt.2023.10.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2024]
Abstract
There is a growing interest in the development of technologies to probe and direct in vitro cellular function for fundamental organoid and stem cell biology, functional tissue and metabolic engineering, and biotherapeutic formulation. Recapitulating many critical aspects of the native cellular niche, hydrogel biomaterials have proven to be a defining platform technology in this space, catapulting biological investigation from traditional two-dimensional (2D) culture into the 3D world. Seeking to better emulate the dynamic heterogeneity characteristic of all living tissues, global efforts over the last several years have centered around upgrading hydrogel design from relatively simple and static architectures into stimuli-responsive and spatiotemporally evolvable niches. Towards this end, advances from traditionally disparate fields including bioorthogonal click chemistry, chemoenzymatic synthesis, and DNA nanotechnology have been co-opted and integrated to construct 4D-tunable systems that undergo preprogrammed functional changes in response to user-defined inputs. In this Review, we highlight how advances in synthetic, semisynthetic, and bio-based chemistries have played a critical role in the triggered creation and customization of next-generation hydrogel biomaterials. We also chart how these advances stand to energize the translational pipeline of hydrogels from bench to market and close with an outlook on outstanding opportunities and challenges that lay ahead.
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Affiliation(s)
- Ryan Gharios
- Department of Chemical Engineering, University of Washington, Seattle WA 98105, USA
| | - Ryan M. Francis
- Department of Chemical Engineering, University of Washington, Seattle WA 98105, USA
| | - Cole A. DeForest
- Department of Chemical Engineering, University of Washington, Seattle WA 98105, USA
- Department of Bioengineering, University of Washington, Seattle WA 98105, USA
- Department of Chemistry, University of Washington, Seattle WA 98105, USA
- Institute of Stem Cell & Regenerative Medicine, University of Washington, Seattle WA 98109, USA
- Molecular Engineering & Sciences Institute, University of Washington, Seattle WA 98105, USA
- Institute for Protein Design, University of Washington, Seattle WA 98105, USA
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2
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Hebels ER, Bindt F, Walther J, van Geijn M, Weterings J, Hu Q, Colombo C, Liskamp R, Rijcken C, Hennink WE, Vermonden T. Orthogonal Covalent Entrapment of Cargo into Biodegradable Polymeric Micelles via Native Chemical Ligation. Biomacromolecules 2023; 24:4385-4396. [PMID: 36044412 PMCID: PMC10565831 DOI: 10.1021/acs.biomac.2c00865] [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: 07/14/2022] [Revised: 08/18/2022] [Indexed: 11/29/2022]
Abstract
Polymeric micelles (PMs) are promising platforms for enhanced tissue targeting of entrapped therapeutic agents. Strategies to circumvent premature release of entrapped drugs include cross-linking of the micellar core as well as covalent attachment of the drug cargo. The chemistry employed to obtain cross-linked micelles needs to be mild to also allow entrapment of fragile molecules, such as certain peptides, proteins, oligonucleotides, and fluorescent dyes. Native chemical ligation (NCL) is a mild bio-orthogonal reaction between a N-terminal cysteine residue and a thioester that proceeds under physiological conditions. Here, we designed a trifunctional cross-linker containing two cysteine residues for the micelle core-cross-linking reaction and an azide residue for ring-strained alkyne conjugation of fluorescent dyes. We applied this approach to thermosensitive methoxypolyethylene glycol-b-N-(2-hydroxypropyl)methacrylamide-lactate (mPEG-b-HPMAmLacn) based block copolymers of a core-cross-linked polymeric micelle (CCPM) system by attaching thioester residues (using ethyl thioglycolate-succinic anhydride, ETSA) for NCL cross-linking with the trifunctional cross-linker under physiological conditions. By use of mild copper-free click chemistry, we coupled fluorescent dyes, Sulfo.Cy5 and BODIPY, to the core via the azide residue present on the cross-linker by triazole ring formation. In addition, we employed a recently developed cycloheptyne strain promoted click reagent (TMTHSI, CliCr) in comparison to the frequently employed cyclooctyne derivative (DBCO), both achieving successful dye entrapment. The size of the resulting CCPMs could be tuned between 50 and 100 nm by varying the molecular weight of the thermosensitive block and ETSA content. In vitro cell experiments showed successful internalization of the dye entrapped CCPMs, which did not affect cell viability up to a polymer concentration of 2 mg/mL in PC3 cells. These fluorescent dye entrapped CCPMs can be applied in diagnostic imaging and the chemistry developed in this study serves as a steppingstone toward covalently entrapped fragile drug compounds with tunable release in CCPMs.
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Affiliation(s)
- Erik R. Hebels
- Division
of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences (UIPS), Utrecht University, 3508 TB Utrecht, The Netherlands
| | - Felix Bindt
- Division
of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences (UIPS), Utrecht University, 3508 TB Utrecht, The Netherlands
| | - Johanna Walther
- Division
of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences (UIPS), Utrecht University, 3508 TB Utrecht, The Netherlands
| | | | | | - Qizhi Hu
- Cristal
Therapeutics, 6229 EV Maastricht, The Netherlands
| | | | - Rob Liskamp
- Cristal
Therapeutics, 6229 EV Maastricht, The Netherlands
| | | | - Wim E. Hennink
- Division
of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences (UIPS), Utrecht University, 3508 TB Utrecht, The Netherlands
| | - Tina Vermonden
- Division
of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences (UIPS), Utrecht University, 3508 TB Utrecht, The Netherlands
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3
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Ditzler RAJ, King AJ, Towell SE, Ratushnyy M, Zhukhovitskiy AV. Editing of polymer backbones. Nat Rev Chem 2023; 7:600-615. [PMID: 37542179 DOI: 10.1038/s41570-023-00514-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/12/2023] [Indexed: 08/06/2023]
Abstract
Polymers are at the epicentre of modern technological progress and the associated environmental pollution. Considerations of both polymer functionality and lifecycle are crucial in these contexts, and the polymer backbone - the core of a polymer - is at the root of these considerations. Just as the meaning of a sentence can be altered by editing its words, the function and sustainability of a polymer can also be transformed via the chemical modification of its backbone. Yet, polymer modification has primarily been focused on the polymer periphery. In this Review, we focus on the transformations of the polymer backbone by defining some concepts fundamental to this topic (for example, 'polymer backbone' and 'backbone editing') and by collecting and categorizing examples of backbone editing scattered throughout a century's worth of chemical literature, and outline critical directions for further research. In so doing, we lay the foundation for the field of polymer backbone editing and hope to accelerate its development.
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Affiliation(s)
- Rachael A J Ditzler
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Andrew J King
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Sydney E Towell
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Maxim Ratushnyy
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
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4
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Hebels ER, van Steenbergen MJ, Haegebaert R, Seinen CW, Mesquita BS, van den Dikkenberg A, Remaut K, Rijcken CJF, van Ravensteijn BGP, Hennink WE, Vermonden T. Mechanistic Study on the Degradation of Hydrolysable Core-Crosslinked Polymeric Micelles. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:12132-12143. [PMID: 37581242 PMCID: PMC10469444 DOI: 10.1021/acs.langmuir.3c01399] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Revised: 07/20/2023] [Indexed: 08/16/2023]
Abstract
Core-crosslinked polymeric micelles (CCPMs) are an attractive class of nanocarriers for drug delivery. Two crosslinking approaches to form CCPMs exist: either via a low-molecular-weight crosslinking agent to connect homogeneous polymer chains with reactive handles or via cross-reactive handles on polymers to link them to each other (complementary polymers). Previously, CCPMs based on methoxy poly(ethylene glycol)-b-poly[N-(2-hydroxypropyl) methacrylamide-lactate] (mPEG-b-PHPMAmLacn) modified with thioesters were crosslinked via native chemical ligation (NCL, a reaction between a cysteine residue and thioester resulting in an amide bond) using a bifunctional cysteine containing crosslinker. These CCPMs are degradable under physiological conditions due to hydrolysis of the ester groups present in the crosslinks. The rapid onset of degradation observed previously, as measured by the light scattering intensity, questions the effectiveness of crosslinking via a bifunctional agent. Particularly due to the possibility of intrachain crosslinks that can occur using such a small crosslinker, we investigated the degradation mechanism of CCPMs generated via both approaches using various analytical techniques. CCPMs based on complementary polymers degraded slower at pH 7.4 and 37 °C than CCPMs with a crosslinker (the half-life of the light scattering intensity was approximately 170 h versus 80 h, respectively). Through comparative analysis of the degradation profiles of the two different CCPMs, we conclude that partially ineffective intrachain crosslinks are likely formed using the small crosslinker, which contributed to more rapid CCPM degradation. Overall, this study shows that the type of crosslinking approach can significantly affect degradation kinetics, and this should be taken into consideration when developing new degradable CCPM platforms.
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Affiliation(s)
- Erik R. Hebels
- Department
of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences (UIPS), Utrecht University, 3508 TB Utrecht, The Netherlands
| | - Mies J. van Steenbergen
- Department
of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences (UIPS), Utrecht University, 3508 TB Utrecht, The Netherlands
| | - Ragna Haegebaert
- Laboratory
for General Biochemistry and Physical Pharmacy, Ghent University, Ottergemsesteenweg 460, 9000 Gent, Belgium
| | - Cornelis W. Seinen
- Division
Laboratories, Pharmacy and Biomedical Genetics, Central Diagnostic
Lab, University Medical Center Utrecht, Heidelberglaan 100, 3584 CX Utrecht, The Netherlands
| | - Barbara S. Mesquita
- Department
of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences (UIPS), Utrecht University, 3508 TB Utrecht, The Netherlands
| | - Antoinette van den Dikkenberg
- Department
of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences (UIPS), Utrecht University, 3508 TB Utrecht, The Netherlands
| | - Katrien Remaut
- Laboratory
for General Biochemistry and Physical Pharmacy, Ghent University, Ottergemsesteenweg 460, 9000 Gent, Belgium
| | | | - Bas G. P. van Ravensteijn
- Department
of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences (UIPS), Utrecht University, 3508 TB Utrecht, The Netherlands
| | - Wim E. Hennink
- Department
of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences (UIPS), Utrecht University, 3508 TB Utrecht, The Netherlands
| | - Tina Vermonden
- Department
of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences (UIPS), Utrecht University, 3508 TB Utrecht, The Netherlands
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5
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Fan Y, Lüchow M, Badria A, Hutchinson DJ, Malkoch M. Placenta Powder-Infused Thiol-Ene PEG Hydrogels as Potential Tissue Engineering Scaffolds. Biomacromolecules 2023; 24:1617-1626. [PMID: 36944137 PMCID: PMC10091351 DOI: 10.1021/acs.biomac.2c01355] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/23/2023]
Abstract
Human placenta is a source of extracellular matrix for tissue engineering. In this study, placenta powder (PP), made from decellularized human placenta, was physically incorporated into synthetic poly(ethylene glycol) (PEG)-based hydrogels via UV-initiated thiol-ene coupling (TEC). The PP-incorporated PEG hydrogels (MoDPEG+) showed tunable storage moduli ranging from 1080 ± 290 to 51,400 ± 200 Pa. The addition of PP (1, 4, or 8 wt %) within the PEG hydrogels increased the storage moduli, with the 8 wt % PP hydrogels showing the highest storage moduli. PP reduced the swelling ratios compared with the pristine hydrogels (MoDPEG). All hydrogels showed good biocompatibility in vitro toward human skin cells and murine macrophages, with cell viability above 91%. Importantly, cells could adhere and proliferate on MoDPEG+ hydrogels due to the bioactive PP, while MoDPEG hydrogels were bio-inert as cells moved away from the hydrogel or were distributed in a large cluster on the hydrogel surface. To showcase their potential use in application-driven research, the MoDPEG+ hydrogels were straightforwardly (i) 3D printed using the SLA technique and (ii) produced via high-energy visible light (HEV-TEC) to populate damaged soft-tissue or bone cavities. Taking advantage of the bioactivity of PP and the tunable physicochemical properties of the synthetic PEG hydrogels, the presented MoDPEG+ hydrogels show great promise for tissue regeneration.
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Affiliation(s)
- Yanmiao Fan
- Division of Coating Technology, Department of Fibre and Polymer Technology, KTH Royal Institute of Technology, Teknikringen 56-58, 10044 Stockholm, Sweden
| | - Mads Lüchow
- Division of Coating Technology, Department of Fibre and Polymer Technology, KTH Royal Institute of Technology, Teknikringen 56-58, 10044 Stockholm, Sweden
| | - Adel Badria
- Division of Coating Technology, Department of Fibre and Polymer Technology, KTH Royal Institute of Technology, Teknikringen 56-58, 10044 Stockholm, Sweden
| | - Daniel J Hutchinson
- Division of Coating Technology, Department of Fibre and Polymer Technology, KTH Royal Institute of Technology, Teknikringen 56-58, 10044 Stockholm, Sweden
| | - Michael Malkoch
- Division of Coating Technology, Department of Fibre and Polymer Technology, KTH Royal Institute of Technology, Teknikringen 56-58, 10044 Stockholm, Sweden
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6
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Nun N, Joy A. Fabrication and Bioactivity of Peptide-Conjugated Biomaterial Tissue Engineering Constructs. Macromol Rapid Commun 2023; 44:e2200342. [PMID: 35822458 DOI: 10.1002/marc.202200342] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2022] [Revised: 06/22/2022] [Indexed: 01/11/2023]
Abstract
Tissue engineering combines materials engineering, cells and biochemical factors to improve, restore or replace various types of biological tissues. A nearly limitless combination of these strategies can be combined, providing a means to augment the function of a number of biological tissues such as skin tissue, neural tissue, bones, and cartilage. Compounds such as small molecule therapeutics, proteins, and even living cells have been incorporated into tissue engineering constructs to influence biological processes at the site of implantation. Peptides have been conjugated to tissue engineering constructs to circumvent limitations associated with conjugation of proteins or incorporation of cells. This review highlights various contemporary examples in which peptide conjugation is used to overcome the disadvantages associated with the inclusion of other bioactive compounds. This review covers several peptides that are commonly used in the literature as well as those that do not appear as frequently to provide a broad scope of the utility of the peptide conjugation technique for designing constructs capable of influencing the repair and regeneration of various bodily tissues. Additionally, a brief description of the construct fabrication techniques encountered in the covered examples and their advantages in various tissue engineering applications is provided.
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Affiliation(s)
- Nicholas Nun
- School of Polymer Science and Polymer Engineering, The University of Akron, Akron, OH, 44321, USA
| | - Abraham Joy
- School of Polymer Science and Polymer Engineering, The University of Akron, Akron, OH, 44321, USA
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7
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Pal S, Mandal A, Hong L, Ortuso RD, Petri-Fink A, Salentinig S, Kilbinger AFM. Native Chemical Ligation: Ultrafast Synthesis of Block Copolymers. Macromolecules 2022. [DOI: 10.1021/acs.macromol.2c00154] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Subhajit Pal
- Department of Chemistry, University of Fribourg, Chemin du Musée 9, CH-1700 Fribourg, Switzerland
| | - Ankita Mandal
- Department of Chemistry, University of Fribourg, Chemin du Musée 9, CH-1700 Fribourg, Switzerland
| | - Linda Hong
- Department of Chemistry, University of Fribourg, Chemin du Musée 9, CH-1700 Fribourg, Switzerland
| | - Roberto D. Ortuso
- Adolphe Merkle Institute, University of Fribourg, Chemin des Verdiers 4, CH-1700 Fribourg, Switzerland
| | - Alke Petri-Fink
- Adolphe Merkle Institute, University of Fribourg, Chemin des Verdiers 4, CH-1700 Fribourg, Switzerland
| | - Stefan Salentinig
- Department of Chemistry, University of Fribourg, Chemin du Musée 9, CH-1700 Fribourg, Switzerland
| | - Andreas F. M. Kilbinger
- Department of Chemistry, University of Fribourg, Chemin du Musée 9, CH-1700 Fribourg, Switzerland
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8
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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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9
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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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10
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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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11
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Gilchrist AE, Serrano JF, Ngo MT, Hrnjak Z, Kim S, Harley BAC. Encapsulation of murine hematopoietic stem and progenitor cells in a thiol-crosslinked maleimide-functionalized gelatin hydrogel. Acta Biomater 2021; 131:138-148. [PMID: 34161871 PMCID: PMC8373770 DOI: 10.1016/j.actbio.2021.06.028] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Revised: 06/02/2021] [Accepted: 06/16/2021] [Indexed: 02/09/2023]
Abstract
Biomaterial platforms are an integral part of stem cell biomanufacturing protocols. The collective biophysical, biochemical, and cellular cues of the stem cell niche microenvironment play an important role in regulating stem cell fate decisions. Three-dimensional (3D) culture of stem cells within biomaterials provides a route to present biophysical and biochemical stimuli through cell-matrix interactions and cell-cell interactions via secreted biomolecules. Herein, we describe a maleimide-functionalized gelatin (GelMAL) hydrogel that can be crosslinked via thiol-Michael addition click reaction for the encapsulation of sensitive stem cell populations. The maleimide functional units along the gelatin backbone enables gelation via the addition of a dithiol crosslinker without requiring external stimuli (e.g., UV light, photoinitiator), thereby reducing reactive oxide species generation. Additionally, the versatility of crosslinker selection enables easy insertion of thiol-containing bioactive or bioinert motifs. Hematopoietic stem cells (HSCs) and mesenchymal stem cells (MSCs) were encapsulated in GelMAL, with mechanical properties tuned to mimic the in vivo bone marrow niche. We report the insertion of a cleavable peptide crosslinker that can be degraded by the proteolytic action of Sortase A, a mammalian-inert enzyme. Notably, Sortase A exposure preserves stem cell surface markers, which are an essential metric of hematopoietic activity used in immunophenotyping. This novel GelMAL system enables a route to produce artificial stem cell niches with tunable biophysical properties, intrinsic cell-interaction motifs, and orthogonal addition of bioactive crosslinks. STATEMENT OF SIGNIFICANCE: We describe a maleimide-functionalized gelatin hydrogel that can be crosslinked via a thiol-maleimide mediated click reaction to form a stable hydrogel without the production of reactive oxygen species typical in light-based crosslinking. The mechanical properties can be tuned to match the in vivo bone marrow microenvironment for hematopoietic stem cell culture. Additionally, we report inclusion of a peptide crosslinker that can be cleaved via the proteolytic action of Sortase A and show that Sortase A exposure does not degrade sensitive surface marker expression patterns. Together, this approach reduces stem cell exposure to reactive oxygen species during hydrogel gelation and enables post-culture quantitative assessment of stem cell phenotype.
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Affiliation(s)
- Aidan E Gilchrist
- Department of Materials Science and Engineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
| | - Julio F Serrano
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
| | - Mai T Ngo
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
| | - Zona Hrnjak
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
| | - Sanha Kim
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
| | - Brendan A C Harley
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA; Carl R. Woese Institute for Genomic Biology, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA; Cancer Center at Illinois, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA.
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12
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Zhang Z, Hao G, Liu C, Fu J, Hu D, Rong J, Yang X. Recent progress in the preparation, chemical interactions and applications of biocompatible polysaccharide-protein nanogel carriers. Food Res Int 2021; 147:110564. [PMID: 34399540 DOI: 10.1016/j.foodres.2021.110564] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2020] [Revised: 06/21/2021] [Accepted: 06/27/2021] [Indexed: 12/12/2022]
Abstract
Nanogel carriers are rapidly emerged as a major delivery strategy in the fields of food, biology and medicine for small particle size, excellent solubility, high loading, and controlled release. Natural polysaccharides and proteins are selected for the preparation of biocompatible, biodegradable, low toxic, and less immunogenic nanogels. Different polysaccharides and proteins form complex nanogels through different interaction forces (e.g., electrostatic interaction and hydrophobic interaction). The present review pursues three aims: 1) to introduce several well-known dietary polysaccharides (chitosan, dextran and alginate) and proteins (whey protein and lysozyme); 2) to discuss the types, preparation methods, chemical interactions and properties of various biocompatible complex carriers; 3) to present the application and prospect of polysaccharide-protein complex in bioactive ingredient delivery, nutrient encapsulation and flavor protection. We expect that the integration with nano-intelligent technology will improve the functional ingredient loading, recognition specificity and controlled release capabilities of polysaccharide-protein nanocomposites to generate new intelligent nanogels in the field of food industry in the future.
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Affiliation(s)
- Zhong Zhang
- Shaanxi Engineering Laboratory for Food Green Processing Safety Control, Xi'an Key Laboratory of Characteristic Fruit Storage and Preservation, Engineering Research Center of High Value Utilization of Western Fruit Resources and College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi'an, Shaanxi 710119, China; School of Chinese Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, 10 Sassoon Road, Pokfulam, Hong Kong
| | - Guoying Hao
- Shaanxi Engineering Laboratory for Food Green Processing Safety Control, Xi'an Key Laboratory of Characteristic Fruit Storage and Preservation, Engineering Research Center of High Value Utilization of Western Fruit Resources and College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi'an, Shaanxi 710119, China
| | - Chen Liu
- Shaanxi Engineering Laboratory for Food Green Processing Safety Control, Xi'an Key Laboratory of Characteristic Fruit Storage and Preservation, Engineering Research Center of High Value Utilization of Western Fruit Resources and College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi'an, Shaanxi 710119, China
| | - Junqing Fu
- Shandong Institute for Food and Drug Control, Ji'nan, Shandong 250101, China
| | - Dan Hu
- Shaanxi Engineering Laboratory for Food Green Processing Safety Control, Xi'an Key Laboratory of Characteristic Fruit Storage and Preservation, Engineering Research Center of High Value Utilization of Western Fruit Resources and College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi'an, Shaanxi 710119, China
| | - Jianhui Rong
- School of Chinese Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, 10 Sassoon Road, Pokfulam, Hong Kong.
| | - Xingbin Yang
- Shaanxi Engineering Laboratory for Food Green Processing Safety Control, Xi'an Key Laboratory of Characteristic Fruit Storage and Preservation, Engineering Research Center of High Value Utilization of Western Fruit Resources and College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi'an, Shaanxi 710119, China.
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13
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Zhang S, Peng B, Wang W. Temperature-Responsive Hydrogel Carrier for Reducing Adsorption Loss of Petroleum Sulfonates. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2021; 37:9809-9816. [PMID: 34343430 DOI: 10.1021/acs.langmuir.1c01374] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
As an effective anionic surfactant for chemical flooding, petroleum sulfonate (PS) is often used in conjunction with alkalis to reduce the adsorption loss of PS onto rock and clay surfaces. However, alkali injection can lead to scaling, aggravate the water-sensitive effect of clays, and accelerate polymer hydrolysis. Here, a temperature-responsive biohydrogel-based carrier (XLK) was designed to protect PS from adsorption onto geological features. XLK, an aqueous mixture containing 0.5% xanthan gum, 0.5% locust bean gum, and 2% KCl, was a gel at room temperature and transformed gradually into a sol above 50 °C (sol/gel transition temperature, Tsol/gel). Below the Tsol/gel, most PS was retained in the gel, preventing the adsorption of PS onto quartz sand. Above the Tsol/gel, PS was released into the surrounding medium. After it had been loaded with PS, the storage modulus (G', Pa) of XLK increased from 102 to 103 and the loss modulus (G″, Pa) increased from 101 to 102. Environmental scanning electron microscopy micrographs showed that PS filled gaps within the cross-linked network structure of XLK. Compared with the aqueous XLK formulation, the addition of hydrolyzed polyacrylamide (HPAM) decreased the melt rate of XLK and the interfacial tension (IFT) of PS. Among the constituents of XLK loaded with PS, KCl had the most obvious effect of lowering the shear modulus of HPAM. Sufficient amounts of KCl were effective in reducing the IFT of PS to ultralow levels (10-3 mN/m).
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Affiliation(s)
- Shengwei Zhang
- Beijing Key Laboratory for Greenhouse Gas Storage and CO2-EOR, Unconventional Petroleum Research Institute, China University of Petroleum-Beijing, Beijing 102249, China
| | - Bo Peng
- Beijing Key Laboratory for Greenhouse Gas Storage and CO2-EOR, Unconventional Petroleum Research Institute, China University of Petroleum-Beijing, Beijing 102249, China
| | - Weijie Wang
- Beijing Key Laboratory for Greenhouse Gas Storage and CO2-EOR, Unconventional Petroleum Research Institute, China University of Petroleum-Beijing, Beijing 102249, China
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14
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Gao Y, Peng K, Mitragotri S. Covalently Crosslinked Hydrogels via Step-Growth Reactions: Crosslinking Chemistries, Polymers, and Clinical Impact. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 33:e2006362. [PMID: 33988273 DOI: 10.1002/adma.202006362] [Citation(s) in RCA: 69] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/17/2020] [Revised: 11/24/2020] [Indexed: 06/12/2023]
Abstract
Hydrogels are an important class of biomaterials with the unique property of high-water content in a crosslinked polymer network. In particular, chemically crosslinked hydrogels have made a great clinical impact in past years because of their desirable mechanical properties and tunability of structural and chemical properties. Various polymers and step-growth crosslinking chemistries are harnessed for fabricating such covalently crosslinked hydrogels for translational research. However, selecting appropriate crosslinking chemistries and polymers for the intended clinical application is time-consuming and challenging. It requires the integration of polymer chemistry knowledge with thoughtful crosslinking reaction design. This task becomes even more challenging when other factors such as the biological mechanisms of the pathology, practical administration routes, and regulatory requirements add additional constraints. In this review, key features of crosslinking chemistries and polymers commonly used for preparing translatable hydrogels are outlined and their performance in biological systems is summarized. The examples of effective polymer/crosslinking chemistry combinations that have yielded clinically approved hydrogel products are specifically highlighted. These hydrogel design parameters in the context of the regulatory process and clinical translation barriers, providing a guideline for the rational selection of polymer/crosslinking chemistry combinations to construct hydrogels with high translational potential are further considered.
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Affiliation(s)
- Yongsheng Gao
- School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, 02138, USA
- Wyss Institute of Biologically Inspired Engineering, Boston, MA, 02115, USA
| | - Kevin Peng
- School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, 02138, USA
- Wyss Institute of Biologically Inspired Engineering, Boston, MA, 02115, USA
| | - Samir Mitragotri
- School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, 02138, USA
- Wyss Institute of Biologically Inspired Engineering, Boston, MA, 02115, USA
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15
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Aluri KC, Hossain MA, Kanetkar N, Miller BC, Dowgiallo MG, Sivasankar D, Sullivan MR, Manetsch R, Konry T, Ekenseair A, Agar JN. Cyclic Thiosulfinates as a Novel Class of Disulfide Cleavable Cross-Linkers for Rapid Hydrogel Synthesis. Bioconjug Chem 2021; 32:584-594. [PMID: 33606505 DOI: 10.1021/acs.bioconjchem.1c00049] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
We recently reported that cyclic thiosulfinates are cysteine selective cross-linkers that avoid the "dead-end" modifications that contribute to other cross-linkers' toxicity. In this study, we generalize the chemistry of cyclic thiosulfinates to that of thiol selective cross-linking and apply them to the synthesis of hydrogels. Thiol-functionalized four-arm poly(ethylene glycol) and hyaluronic acid monomers were cross-linked with 1,2-dithiane-1-oxide to form disulfide cross-linked hydrogels within seconds. The synthesized hydrogel could be reduced with physiological concentrations of glutathione, which modulated hydrogel mechanical properties and degradation kinetics. Bovine serum albumin protein was successfully encapsulated in hydrogel, and diffusion-mediated release was demonstrated in vitro. Hep G2 cells grew in the presence of preformed hydrogel and during hydrogel synthesis, demonstrating acceptable cytotoxicity. We encapsulated cells within a hydrogel and demonstrated cell growth and recovery up to 10 days, with and without cell adhesion peptides. In summary, we report cyclic thiosulfinates as a novel class of cross-linkers for the facile synthesis of biodegradable hydrogels.
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Affiliation(s)
- Krishna C Aluri
- Department of Chemistry and Chemical Biology, Northeastern University, 360 Huntington Avenue, Boston, Massachusetts 02115, United States.,Barnett Institute of Chemical and Biological Analysis, Northeastern University, 360 Huntington Avenue, Boston, Massachusetts 02115, United States
| | - Md Amin Hossain
- Department of Chemistry and Chemical Biology, Northeastern University, 360 Huntington Avenue, Boston, Massachusetts 02115, United States.,Barnett Institute of Chemical and Biological Analysis, Northeastern University, 360 Huntington Avenue, Boston, Massachusetts 02115, United States
| | - Ninad Kanetkar
- Department of Chemical Engineering, Northeastern University, 360 Huntington Avenue, Boston, Massachusetts 02115, United States
| | - Brandon C Miller
- Department of Chemistry and Chemical Biology, Northeastern University, 360 Huntington Avenue, Boston, Massachusetts 02115, United States
| | - Matthew G Dowgiallo
- Department of Chemistry and Chemical Biology, Northeastern University, 360 Huntington Avenue, Boston, Massachusetts 02115, United States
| | - Durgalakshmi Sivasankar
- Department of Chemistry and Chemical Biology, Northeastern University, 360 Huntington Avenue, Boston, Massachusetts 02115, United States.,Barnett Institute of Chemical and Biological Analysis, Northeastern University, 360 Huntington Avenue, Boston, Massachusetts 02115, United States
| | - Matthew R Sullivan
- Department of Pharmaceutical Sciences, Northeastern University, 360 Huntington Avenue, Boston, Massachusetts 02115, United States
| | - Roman Manetsch
- Department of Chemistry and Chemical Biology, Northeastern University, 360 Huntington Avenue, Boston, Massachusetts 02115, United States.,Department of Pharmaceutical Sciences, Northeastern University, 360 Huntington Avenue, Boston, Massachusetts 02115, United States
| | - Tania Konry
- Department of Pharmaceutical Sciences, Northeastern University, 360 Huntington Avenue, Boston, Massachusetts 02115, United States
| | - Adam Ekenseair
- Department of Chemical Engineering, Northeastern University, 360 Huntington Avenue, Boston, Massachusetts 02115, United States
| | - Jeffrey N Agar
- Department of Chemistry and Chemical Biology, Northeastern University, 360 Huntington Avenue, Boston, Massachusetts 02115, United States.,Barnett Institute of Chemical and Biological Analysis, Northeastern University, 360 Huntington Avenue, Boston, Massachusetts 02115, United States.,Department of Pharmaceutical Sciences, Northeastern University, 360 Huntington Avenue, Boston, Massachusetts 02115, United States
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16
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Chimala P, Perera MM, Wade A, McKenzie T, Allor J, Ayres N. Hyperbranched polymer hydrogels with large stimuli-responsive changes in storage moduli and peroxide-induced healing. Polym Chem 2021. [DOI: 10.1039/d1py00560j] [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
Hydrogels prepared using hyperbranched polymers with dynamic disulfide bonds show larger changes in moduli upon exposure to chemical stimuli for both softening and stiffening responses compared to linear polymers.
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Affiliation(s)
| | - M. Mario Perera
- Department of Chemistry
- The University of Cincinnati
- Cincinnati
- USA
| | - Aissatou Wade
- Department of Chemistry
- The University of Cincinnati
- Cincinnati
- USA
| | - Tucker McKenzie
- Department of Chemistry
- The University of Cincinnati
- Cincinnati
- USA
| | - Joshua Allor
- Department of Chemistry
- The University of Cincinnati
- Cincinnati
- USA
| | - Neil Ayres
- Department of Chemistry
- The University of Cincinnati
- Cincinnati
- USA
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17
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Samadian H, Maleki H, Fathollahi A, Salehi M, Gholizadeh S, Derakhshankhah H, Allahyari Z, Jaymand M. Naturally occurring biological macromolecules-based hydrogels: Potential biomaterials for peripheral nerve regeneration. Int J Biol Macromol 2020; 154:795-817. [DOI: 10.1016/j.ijbiomac.2020.03.155] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2020] [Revised: 03/15/2020] [Accepted: 03/16/2020] [Indexed: 12/18/2022]
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18
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Hegedűs O, Juriga D, Sipos E, Voniatis C, Juhász Á, Idrissi A, Zrínyi M, Varga G, Jedlovszky-Hajdú A, Nagy KS. Free thiol groups on poly(aspartamide) based hydrogels facilitate tooth-derived progenitor cell proliferation and differentiation. PLoS One 2019; 14:e0226363. [PMID: 31856233 PMCID: PMC6922333 DOI: 10.1371/journal.pone.0226363] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2019] [Accepted: 11/24/2019] [Indexed: 12/14/2022] Open
Abstract
Cell-based tissue reconstruction is an important field of regenerative medicine. Stem and progenitor cells derived from tooth-associated tissues have strong regeneration potential. However, their in vivo application requires the development of novel scaffolds that will provide a suitable three-dimensional (3D) environment allowing not only the survival of the cells but eliciting their proliferation and differentiation. Our aim was to study the viability and differentiation capacity of periodontal ligament cells (PDLCs) cultured on recently developed biocompatible and biodegradable poly(aspartamide) (PASP)-based hydrogels. Viability and behavior of PDLCs were investigated on PASP-based hydrogels possessing different chemical, physical and mechanical properties. Based on our previous results, the effect of thiol group density in the polymer matrix on cell viability, morphology and differentiation ability is in the focus of our article. The chemical composition and 3D structures of the hydrogels were determined by FT Raman spectroscopy and Scanning Electron Microscopy. Morphology of the cells was examined by phase contrast microscopy. To visualize cell growth and migration patterns through the hydrogels, two-photon microscopy were utilized. Cell viability analysis was performed according to a standardized protocol using WST-1 reagent. PDLCs were able to attach and grow on PASP-based hydrogels. An increase in gel stiffness enhanced adhesion and proliferation of the cells. However, the highest population of viable cells was observed on the PASP gels containing free thiol groups. The presence of thiol groups does not only enhance viability but also facilitates the osteogenic direction of the differentiating cells. These cell-gel structures seem to be highly promising for cell-based tissue reconstruction purposes in the field of regenerative medicine.
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Affiliation(s)
- Orsolya Hegedűs
- Department of Oral Biology, Semmelweis University, Budapest, Hungary
| | - Dávid Juriga
- Laboratory of Nanochemistry, Department of Biophysics and Radiation Biology, Semmelweis University, Budapest, Hungary
| | - Evelin Sipos
- Laboratory of Nanochemistry, Department of Biophysics and Radiation Biology, Semmelweis University, Budapest, Hungary
| | - Constantinos Voniatis
- Laboratory of Nanochemistry, Department of Biophysics and Radiation Biology, Semmelweis University, Budapest, Hungary
| | - Ákos Juhász
- Laboratory of Nanochemistry, Department of Biophysics and Radiation Biology, Semmelweis University, Budapest, Hungary
- University of Lille, Faculty of Science and Technology, Villeneuve d’Ascq Cedex, France
| | - Abdenaccer Idrissi
- University of Lille, Faculty of Science and Technology, Villeneuve d’Ascq Cedex, France
| | - Miklós Zrínyi
- Laboratory of Nanochemistry, Department of Biophysics and Radiation Biology, Semmelweis University, Budapest, Hungary
| | - Gábor Varga
- Department of Oral Biology, Semmelweis University, Budapest, Hungary
| | - Angéla Jedlovszky-Hajdú
- Laboratory of Nanochemistry, Department of Biophysics and Radiation Biology, Semmelweis University, Budapest, Hungary
| | - Krisztina S. Nagy
- Department of Oral Biology, Semmelweis University, Budapest, Hungary
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19
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Mohamed MA, Fallahi A, El-Sokkary AM, Salehi S, Akl MA, Jafari A, Tamayol A, Fenniri H, Khademhosseini A, Andreadis ST, Cheng C. Stimuli-responsive hydrogels for manipulation of cell microenvironment: From chemistry to biofabrication technology. Prog Polym Sci 2019; 98. [DOI: 10.1016/j.progpolymsci.2019.101147] [Citation(s) in RCA: 53] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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20
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Prince DA, Villamagna IJ, Borecki A, Beier F, de Bruyn JR, Hurtig M, Gillies ER. Thermoresponsive and Covalently Cross-Linkable Hydrogels for Intra-Articular Drug Delivery. ACS APPLIED BIO MATERIALS 2019; 2:3498-3507. [DOI: 10.1021/acsabm.9b00410] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- David Andrew Prince
- Department of Chemistry, The University of Western Ontario, 1151 Richmond Street, London, Ontario N6A 5B7, Canada
| | - Ian J. Villamagna
- School of Biomedical Engineering, The University of Western Ontario, 1151 Richmond Street, London, Ontario N6A 5B9, Canada
- Bone and Joint Institute, The University of Western Ontario, London, Ontario N6A 3K7, Canada
| | - Aneta Borecki
- Department of Chemistry, The University of Western Ontario, 1151 Richmond Street, London, Ontario N6A 5B7, Canada
- Centre for Advanced Materials and Biomaterials Research, The University of Western Ontario, 1151 Richmond Street, London, Ontario N6A 3K7, Canada
| | - Frank Beier
- Bone and Joint Institute, The University of Western Ontario, London, Ontario N6A 3K7, Canada
- Department of Physiology and Pharmacology, The University of Western Ontario, 1151 Richmond Street, London, Ontario N6A 3B7, Canada
| | - John R. de Bruyn
- Centre for Advanced Materials and Biomaterials Research, The University of Western Ontario, 1151 Richmond Street, London, Ontario N6A 3K7, Canada
- Department of Physics and Astronomy, The University of Western Ontario, 1151 Richmond Street, London, Ontario N6A 3K7, Canada
| | - Mark Hurtig
- Ontario Veterinary College, Department of Clinical Studies, University of Guelph, 50 Stone Road, Guelph, Ontario N1G 2W1, Canada
| | - Elizabeth R. Gillies
- Department of Chemistry, The University of Western Ontario, 1151 Richmond Street, London, Ontario N6A 5B7, Canada
- School of Biomedical Engineering, The University of Western Ontario, 1151 Richmond Street, London, Ontario N6A 5B9, Canada
- Bone and Joint Institute, The University of Western Ontario, London, Ontario N6A 3K7, Canada
- Centre for Advanced Materials and Biomaterials Research, The University of Western Ontario, 1151 Richmond Street, London, Ontario N6A 3K7, Canada
- Department of Chemical and Biochemical Engineering, The University of Western Ontario, 1151 Richmond Street, London, Ontario N6A 5B9, Canada
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21
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Darge HF, Andrgie AT, Tsai HC, Lai JY. Polysaccharide and polypeptide based injectable thermo-sensitive hydrogels for local biomedical applications. Int J Biol Macromol 2019; 133:545-563. [DOI: 10.1016/j.ijbiomac.2019.04.131] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Revised: 04/12/2019] [Accepted: 04/16/2019] [Indexed: 01/19/2023]
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22
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Agouridas V, El Mahdi O, Diemer V, Cargoët M, Monbaliu JCM, Melnyk O. Native Chemical Ligation and Extended Methods: Mechanisms, Catalysis, Scope, and Limitations. Chem Rev 2019; 119:7328-7443. [DOI: 10.1021/acs.chemrev.8b00712] [Citation(s) in RCA: 243] [Impact Index Per Article: 48.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Vangelis Agouridas
- UMR CNRS 8204, Centre d’Immunité et d’Infection de Lille, University of Lille, CNRS, Institut Pasteur de Lille, F-59000 Lille, France
| | - Ouafâa El Mahdi
- Faculté Polydisciplinaire de Taza, University Sidi Mohamed Ben Abdellah, BP 1223 Taza Gare, Morocco
| | - Vincent Diemer
- UMR CNRS 8204, Centre d’Immunité et d’Infection de Lille, University of Lille, CNRS, Institut Pasteur de Lille, F-59000 Lille, France
| | - Marine Cargoët
- UMR CNRS 8204, Centre d’Immunité et d’Infection de Lille, University of Lille, CNRS, Institut Pasteur de Lille, F-59000 Lille, France
| | - Jean-Christophe M. Monbaliu
- Center for Integrated Technology and Organic Synthesis, Department of Chemistry, University of Liège, Building B6a, Room 3/16a, Sart-Tilman, B-4000 Liège, Belgium
| | - Oleg Melnyk
- UMR CNRS 8204, Centre d’Immunité et d’Infection de Lille, University of Lille, CNRS, Institut Pasteur de Lille, F-59000 Lille, France
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23
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Gu Y, Schauenburg D, Bode JW, Johnson JA. Leaving Groups as Traceless Topological Modifiers for the Synthesis of Topologically Isomeric Polymer Networks. J Am Chem Soc 2018; 140:14033-14037. [DOI: 10.1021/jacs.8b07967] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Yuwei Gu
- Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Dominik Schauenburg
- Laboratorium für Organische Chemie, Department of Chemistry and Applied Biosciences, ETH Zürich, 8093 Zürich, Switzerland
| | - Jeffrey W. Bode
- Laboratorium für Organische Chemie, Department of Chemistry and Applied Biosciences, ETH Zürich, 8093 Zürich, Switzerland
| | - Jeremiah A. Johnson
- Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
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24
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Najafi M, Kordalivand N, Moradi MA, van den Dikkenberg J, Fokkink R, Friedrich H, Sommerdijk NAJM, Hembury M, Vermonden T. Native Chemical Ligation for Cross-Linking of Flower-Like Micelles. Biomacromolecules 2018; 19:3766-3775. [PMID: 30102855 PMCID: PMC6143283 DOI: 10.1021/acs.biomac.8b00908] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2018] [Revised: 08/09/2018] [Indexed: 12/03/2022]
Abstract
In this study, native chemical ligation (NCL) was used as a selective cross-linking method to form core-cross-linked thermosensitive polymeric micelles for drug delivery applications. To this end, two complementary ABA triblock copolymers having polyethylene glycol (PEG) as midblock were synthesized by atom transfer radical polymerization (ATRP). The thermosensitive poly isopropylacrylamide (PNIPAM) outer blocks of the polymers were copolymerized with either N-(2-hydroxypropyl)methacrylamide-cysteine (HPMA-Cys), P(NIPAM- co-HPMA-Cys)-PEG-P(NIPAM- co-HPMA-Cys) (PNC) or N-(2-hydroxypropyl)methacrylamide-ethylthioglycolate succinic acid (HPMA-ETSA), P(NIPAM- co-HPMA-ETSA)-PEG-P(NIPAM- co-HPMA-ETSA) (PNE). Mixing of these polymers in aqueous solution followed by heating to 50 °C resulted in the formation of thermosensitive flower-like micelles. Subsequently, native chemical ligation in the core of micelles resulted in stabilization of the micelles with a Z-average of 65 nm at body temperature. Decreasing the temperature to 10 °C only affected the size of the micelles (increased to 90 nm) but hardly affected the polydispersity index (PDI) and aggregation number ( Nagg) confirming covalent stabilization of the micelles by NCL. CryoTEM images showed micelles with an uniform spherical shape and dark patches close to the corona of micelles were observed in the tomographic view. The dark patches represent more dense areas in the micelles which coincide with the higher content of HPMA-Cys/ETSA close to the PEG chain revealed by the polymerization kinetics study. Notably, this cross-linking method provides the possibility for conjugation of functional molecules either by using the thiol moieties still present after NCL or by simply adjusting the molar ratio between the polymers (resulting in excess cysteine or thioester moieties) during micelle formation. Furthermore, in vitro cell experiments demonstrated that fluorescently labeled micelles were successfully taken up by HeLa cells while cell viability remained high even at high micelle concentrations. These results demonstrate the potential of these micelles for drug delivery applications.
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Affiliation(s)
- Marzieh Najafi
- Department
of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences (UIPS),
Science for Life, Faculty of Science, Utrecht
University, P.O. Box 80082, 3508 TB Utrecht, The Netherlands
| | - Neda Kordalivand
- Department
of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences (UIPS),
Science for Life, Faculty of Science, Utrecht
University, P.O. Box 80082, 3508 TB Utrecht, The Netherlands
| | - Mohammad-Amin Moradi
- Laboratory
of Materials and Interface Chemistry and Centre for Multiscale Electron
Microscopy Department of Chemical Engineering and Chemistry, Eindhoven University of Technology, Eindhoven, 5600 MB, The Netherlands
- Institute
for Complex Molecular Systems, Eindhoven
University of Technology, Eindhoven, 5600 MB, The Netherlands
| | - Joep van den Dikkenberg
- Department
of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences (UIPS),
Science for Life, Faculty of Science, Utrecht
University, P.O. Box 80082, 3508 TB Utrecht, The Netherlands
| | - Remco Fokkink
- Physical
Chemistry and Soft Matter, Wageningen University
and Research, Stippeneng 4, 6708 WE Wageningen, The Netherlands
| | - Heiner Friedrich
- Laboratory
of Materials and Interface Chemistry and Centre for Multiscale Electron
Microscopy Department of Chemical Engineering and Chemistry, Eindhoven University of Technology, Eindhoven, 5600 MB, The Netherlands
- Institute
for Complex Molecular Systems, Eindhoven
University of Technology, Eindhoven, 5600 MB, The Netherlands
| | - Nico A. J. M. Sommerdijk
- Laboratory
of Materials and Interface Chemistry and Centre for Multiscale Electron
Microscopy Department of Chemical Engineering and Chemistry, Eindhoven University of Technology, Eindhoven, 5600 MB, The Netherlands
- Institute
for Complex Molecular Systems, Eindhoven
University of Technology, Eindhoven, 5600 MB, The Netherlands
| | - Mathew Hembury
- Department
of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences (UIPS),
Science for Life, Faculty of Science, Utrecht
University, P.O. Box 80082, 3508 TB Utrecht, The Netherlands
| | - Tina Vermonden
- Department
of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences (UIPS),
Science for Life, Faculty of Science, Utrecht
University, P.O. Box 80082, 3508 TB Utrecht, The Netherlands
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25
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Su J. Thiol-Mediated Chemoselective Strategies for In Situ Formation of Hydrogels. Gels 2018; 4:E72. [PMID: 30674848 PMCID: PMC6209259 DOI: 10.3390/gels4030072] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2018] [Revised: 08/28/2018] [Accepted: 08/31/2018] [Indexed: 12/15/2022] Open
Abstract
Hydrogels are three-dimensional networks composed of hydrated polymer chains and have been a material of choice for many biomedical applications such as drug delivery, biosensing, and tissue engineering due to their unique biocompatibility, tunable physical characteristics, flexible methods of synthesis, and range of constituents. In many cases, methods for crosslinking polymer precursors to form hydrogels would benefit from being highly selective in order to avoid cross-reactivity with components of biological systems leading to adverse effects. Crosslinking reactions involving the thiol group (SH) offer unique opportunities to construct hydrogel materials of diverse properties under mild conditions. This article reviews and comments on thiol-mediated chemoselective and biocompatible strategies for crosslinking natural and synthetic macromolecules to form injectable hydrogels for applications in drug delivery and cell encapsulation.
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Affiliation(s)
- Jing Su
- Department of Chemistry, Northeastern Illinois University, Chicago, IL 60625, USA.
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26
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Modified Methacrylate Hydrogels Improve Tissue Repair after Spinal Cord Injury. Int J Mol Sci 2018; 19:ijms19092481. [PMID: 30131482 PMCID: PMC6164213 DOI: 10.3390/ijms19092481] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2018] [Revised: 08/13/2018] [Accepted: 08/17/2018] [Indexed: 01/10/2023] Open
Abstract
Methacrylate hydrogels have been extensively used as bridging scaffolds in experimental spinal cord injury (SCI) research. As synthetic materials, they can be modified, which leads to improved bridging of the lesion. Fibronectin, a glycoprotein of the extracellular matrix produced by reactive astrocytes after SCI, is known to promote cell adhesion. We implanted 3 methacrylate hydrogels: a scaffold based on hydroxypropylmethacrylamid (HPMA), 2-hydroxyethylmethacrylate (HEMA) and a HEMA hydrogel with an attached fibronectin (HEMA-Fn) in an experimental model of acute SCI in rats. The animals underwent functional evaluation once a week and the spinal cords were histologically assessed 3 months after hydrogel implantation. We found that both the HPMA and the HEMA-Fn hydrogel scaffolds lead to partial sensory improvement compared to control animals and animals treated with plain HEMA scaffold. The HPMA scaffold showed an increased connective tissue infiltration compared to plain HEMA hydrogels. There was a tendency towards connective tissue infiltration and higher blood vessel ingrowth in the HEMA-Fn scaffold. HPMA hydrogels showed a significantly increased axonal ingrowth compared to HEMA-Fn and plain HEMA; while there were some neurofilaments in the peripheral as well as the central region of the HEMA-Fn scaffold, no neurofilaments were found in plain HEMA hydrogels. In conclusion, HPMA hydrogel as well as the HEMA-Fn scaffold showed better bridging qualities compared to the plain HEMA hydrogel, which resulted in very limited partial sensory improvement.
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27
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Abstract
The conjugation of biomolecules can impart materials with the bioactivity necessary to modulate specific cell behaviors. While the biological roles of particular polypeptide, oligonucleotide, and glycan structures have been extensively reviewed, along with the influence of attachment on material structure and function, the key role played by the conjugation strategy in determining activity is often overlooked. In this review, we focus on the chemistry of biomolecule conjugation and provide a comprehensive overview of the key strategies for achieving controlled biomaterial functionalization. No universal method exists to provide optimal attachment, and here we will discuss both the relative advantages and disadvantages of each technique. In doing so, we highlight the importance of carefully considering the impact and suitability of a particular technique during biomaterial design.
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Affiliation(s)
- Christopher D. Spicer
- Department
of Medical Biochemistry and Biophysics, Karolinska Institutet, Scheeles Väg 2, Stockholm, Sweden
| | - E. Thomas Pashuck
- NJ
Centre for Biomaterials, Rutgers University, 145 Bevier Road, Piscataway, New Jersey United States
| | - Molly M. Stevens
- Department
of Medical Biochemistry and Biophysics, Karolinska Institutet, Scheeles Väg 2, Stockholm, Sweden
- Department
of Materials, Department of Bioengineering, and Institute of Biomedical Engineering, Imperial College London, Exhibition Road, London, United Kingdom
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28
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Abstract
Inspired by the uniqueness and ubiquity of thioesters in nature, much attention has been paid to thioester functionalized materials, yielding applications ranging from responsive polymers to bioconjugates and (bio)degradable polymers.
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Affiliation(s)
- Suzan Aksakal
- Polymer Chemistry Laboratories
- School of Engineering and Materials Science
- Queen Mary University of London
- London
- UK
| | - Resat Aksakal
- Polymer Chemistry Laboratories
- School of Engineering and Materials Science
- Queen Mary University of London
- London
- UK
| | - C. Remzi Becer
- Polymer Chemistry Laboratories
- School of Engineering and Materials Science
- Queen Mary University of London
- London
- UK
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29
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Kang B, Vales TP, Cho BK, Kim JK, Kim HJ. Development of Gallic Acid-Modified Hydrogels Using Interpenetrating Chitosan Network and Evaluation of Their Antioxidant Activity. Molecules 2017; 22:E1976. [PMID: 29140278 PMCID: PMC6150364 DOI: 10.3390/molecules22111976] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2017] [Revised: 11/04/2017] [Accepted: 11/13/2017] [Indexed: 02/07/2023] Open
Abstract
In this work, antioxidant hydrogels were prepared by the construction of an interpenetrating chitosan network and functionalization with gallic acid. The poly(2-hydroxyethyl methacrylate) p(HEMA)-based hydrogels were first synthesized and subsequently surface-modified with an interpenetrating polymer network (IPN) structure prepared with methacrylamide chitosan via free radical polymerization. The resulting chitosan-IPN hydrogels were surface-functionalized with gallic acid through an amide coupling reaction, which afforded the antioxidant hydrogels. Notably, gallic-acid-modified hydrogels based on a longer chitosan backbone exhibited superior antioxidant activity than their counterpart with a shorter chitosan moiety; this correlated to the amount of gallic acid attached to the chitosan backbone. Moreover, the surface contact angles of the chitosan-modified hydrogels decreased, indicating that surface functionalization of the hydrogels with chitosan-IPN increased the wettability because of the presence of the hydrophilic chitosan network chain. Our study indicates that chitosan-IPN hydrogels may facilitate the development of applications in biomedical devices and ophthalmic materials.
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Affiliation(s)
- Byungman Kang
- Nuclear Chemistry Research Division, Korea Atomic Energy Research Institute, 989-111 Daedeok-daero, Yuseong-gu, Daejeon 34057, Korea.
| | - Temmy Pegarro Vales
- Department of Chemistry, Chosun University, Gwangju 61452, Korea.
- Department of Natural Sciences, Caraga State University, Butuan City 8600, Philippines.
| | - Byoung-Ki Cho
- Department of Chemistry, Dankook University, 119, Dandae-ro, Chungnam 31116, Korea.
| | - Jong-Ki Kim
- Department of Biomedical Engineering, School of Medicine, Catholic University of Daegu, Daegu 42472, Korea.
| | - Ho-Joong Kim
- Department of Chemistry, Chosun University, Gwangju 61452, Korea.
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30
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Pal RK, Turner EE, Chalfant BH, Yadavalli VK. Mechanically robust, photopatternable conductive hydrogel composites. REACT FUNCT POLYM 2017. [DOI: 10.1016/j.reactfunctpolym.2017.09.006] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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31
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Varaprasad K, Raghavendra GM, Jayaramudu T, Yallapu MM, Sadiku R. A mini review on hydrogels classification and recent developments in miscellaneous applications. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017. [DOI: 10.1016/j.msec.2017.05.096] [Citation(s) in RCA: 171] [Impact Index Per Article: 24.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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32
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Fisher SA, Baker AEG, Shoichet MS. Designing Peptide and Protein Modified Hydrogels: Selecting the Optimal Conjugation Strategy. J Am Chem Soc 2017; 139:7416-7427. [PMID: 28481537 DOI: 10.1021/jacs.7b00513] [Citation(s) in RCA: 100] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Hydrogels are used in a wide variety of biomedical applications including tissue engineering, biomolecule delivery, cell delivery, and cell culture. These hydrogels are often designed with a specific biological function in mind, requiring the chemical incorporation of bioactive factors to either mimic extracellular matrix or to deliver a payload to diseased tissue. Appropriate synthetic techniques to ligate bioactive factors, such as peptides and proteins, onto hydrogels are critical in designing materials with biological function. Here, we outline strategies for peptide and protein immobilization. We specifically focus on click chemistry, enzymatic ligation, and affinity binding for transient immobilization. Protein modification strategies have shifted toward site-specific modification using unnatural amino acids and engineered site-selective amino acid sequences to preserve both activity and structure. The selection of appropriate protein immobilization strategies is vital to engineering functional hydrogels. We provide insight into chemistry that balances the need for facile reactions while maintaining protein bioactivity or desired release.
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Affiliation(s)
- Stephanie A Fisher
- The Donnelly Centre for Cellular and Biomolecular Research, ‡Department of Chemical Engineering and Applied Chemistry, §Institute of Biomaterials and Biomedical Engineering, and ∥Department of Chemistry, University of Toronto , 160 College Street, Room 514, Toronto, Ontario M5S 3E1, Canada
| | - Alexander E G Baker
- The Donnelly Centre for Cellular and Biomolecular Research, ‡Department of Chemical Engineering and Applied Chemistry, §Institute of Biomaterials and Biomedical Engineering, and ∥Department of Chemistry, University of Toronto , 160 College Street, Room 514, Toronto, Ontario M5S 3E1, Canada
| | - Molly S Shoichet
- The Donnelly Centre for Cellular and Biomolecular Research, ‡Department of Chemical Engineering and Applied Chemistry, §Institute of Biomaterials and Biomedical Engineering, and ∥Department of Chemistry, University of Toronto , 160 College Street, Room 514, Toronto, Ontario M5S 3E1, Canada
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33
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Abstract
The formation and subsequent on-demand dissolution of chemically cross-linked hydrogels is of keen interest to chemists, engineers, and clinicians. In this Account, we summarize our recent advances in the area of dissolvable chemically cross-linked hydrogels and provide a comparative discussion of other recent hydrogel systems. Using biocompatible macromonomers, we developed a library of cross-linked dendritic hydrogels that possess favorable properties, including biocompatibility, tissue adhesion, and swelling. Additionally, these hydrogels possess the unique ability to dissolve on-demand via application of a biocompatible aqueous solution. Each of the three hydrogel systems described employs a thiol-thioester exchange reaction as the mechanism of dissolution. These new materials successfully decrease bleeding in in vivo models of hepatic and aortic hemorrhage and dissolve on-demand, providing easy removal. In addition, we evaluated these hydrogels as dressings for second-degree burn wounds and performed proof-of-concept in vivo studies. These hydrogel wound dressings provide a means of repeatedly changing the dressing in a minimally invasive and atraumatic manner while also serving as a protective barrier against bacterial infection. Finally, we highlight the seminal work of other researchers in the field of dissolvable chemically cross-linked hydrogels using thiol-disulfide exchange, retro-Michael-type, and retro-Diels-Alder reactions. These chemistries provide a versatile synthetic toolbox to dissolve hydrogels in a controlled manner on time scales from minutes to weeks. Continued investigation of these dissolution approaches as well as the development of new chemical reactions will open doors to other avenues of on-demand dissolution and expand the application space for these materials. In summary, the management and closure of wounds after traumatic injury or surgical intervention are of significant clinical importance. Stimuli-responsive hydrogels that function as sealants, adhesives, or dressings are emerging as vital alternatives to current standards of care that rely upon conventional sutures, staples, or dressings.
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Affiliation(s)
- Marlena D. Konieczynska
- Departments of Chemistry, Biomedical Engineering, and Medicine, Boston University, 590 Commonwealth Avenue, Boston, Massachusetts 02215, United States
| | - Mark W. Grinstaff
- Departments of Chemistry, Biomedical Engineering, and Medicine, Boston University, 590 Commonwealth Avenue, Boston, Massachusetts 02215, United States
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Buwalda SJ, Vermonden T, Hennink WE. Hydrogels for Therapeutic Delivery: Current Developments and Future Directions. Biomacromolecules 2017; 18:316-330. [DOI: 10.1021/acs.biomac.6b01604] [Citation(s) in RCA: 251] [Impact Index Per Article: 35.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Sytze J. Buwalda
- Institute
of Biomolecules Max Mousseron, Department of Artificial Biopolymers,
Faculty of Pharmacy, UMR 5247, CNRS-University of Montpellier-ENSCM, Montpellier, France
| | - Tina Vermonden
- Department
of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, Utrecht, The Netherlands
| | - Wim E. Hennink
- Department
of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, Utrecht, The Netherlands
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35
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Fan Z, Cheng P, Liu M, Li D, Liu G, Zhao Y, Ding Z, Chen F, Wang B, Tan X, Wang Z, Han J. Poly(glutamic acid) hydrogels crosslinked via native chemical ligation. NEW J CHEM 2017. [DOI: 10.1039/c7nj00439g] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Poly(glutamic acid) hydrogels crosslinked by NCL have good biocompatibility and tunable properties.
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36
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Cruz-Acuña R, García AJ. Synthetic hydrogels mimicking basement membrane matrices to promote cell-matrix interactions. Matrix Biol 2016; 57-58:324-333. [PMID: 27283894 DOI: 10.1016/j.matbio.2016.06.002] [Citation(s) in RCA: 84] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2016] [Revised: 06/02/2016] [Accepted: 06/02/2016] [Indexed: 01/05/2023]
Abstract
Naturally-derived materials have been extensively used as 3D cellular matrices as their inherent bioactivity makes them suitable for the study of many cellular processes. Nevertheless, lot-to-lot variability, inability to decouple biochemical and biophysical properties and, in some types, their tumor-derived nature limits their translational potential and reliability. One innovative approach to overcome these limitations has focused on incorporating bioactivity into cytocompatible, synthetic hydrogels that present tunable physicochemical properties. This review provides an overview of successful approaches to convey basement membrane-like bioactivity into 3D artificial hydrogel matrices in order to recapitulate cellular responses to native matrices. Recent advances involving biofunctionalization of synthetic hydrogels via incorporation of bioactive motifs that promote cell-matrix interactions and cell-directed matrix degradation will be discussed. This review highlights how the tunable physicochemical properties of biofunctionalized synthetic hydrogel matrices can be exploited to study the separate contributions of biochemical and biophysical matrix properties to different cellular processes.
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Affiliation(s)
- Ricardo Cruz-Acuña
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology, Atlanta, GA, United States; Parker H. Petit Institute for Bioengineering and Biosciences, Georgia Institute of Technology, Atlanta, GA, United States
| | - Andrés J García
- George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA, United States; Parker H. Petit Institute for Bioengineering and Biosciences, Georgia Institute of Technology, Atlanta, GA, United States.
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37
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Ghobril C, Rodriguez EK, Nazarian A, Grinstaff MW. Recent Advances in Dendritic Macromonomers for Hydrogel Formation and Their Medical Applications. Biomacromolecules 2016; 17:1235-52. [PMID: 26978246 DOI: 10.1021/acs.biomac.6b00004] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Hydrogels represent one of the most important classes of biomaterials and are of interest for various medical applications including wound repair, tissue engineering, and drug release. Hydrogels possess tunable mechanical properties, biocompatibility, nontoxicity, and similarity to natural soft tissues. The need for hydrogels with specific properties, based on the design requirements of the in vitro, in vivo, or clinical application, motivates researchers to develop new synthetic approaches and cross-linking methodologies to form novel hydrogels with unique properties. The use of dendritic macromonomers represents one elegant strategy for the formation of hydrogels with specific properties. Specifically, the uniformity of dendrimers combined with the control of their size, architecture, density, and surface groups make them promising cross-linkers for hydrogel formation. Over the last two decades, a large variety of dendritic-based hydrogels are reported for their potential use in the clinic. This review describes the state of the art with these different dendritic hydrogel formulations including their design requirements, the synthetic routes, the measurement and determination of their properties, the evaluation of their in vitro and in vivo performances, and future perspectives.
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Affiliation(s)
- Cynthia Ghobril
- Departments of Biomedical Engineering, Chemistry and Medicine, Boston University , 590 Commonwealth Avenue, Boston, Massachusetts 02215, United States
| | - Edward K Rodriguez
- Carl J. Shapiro Department of Orthopaedic Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School , Boston, Massachusetts, United States
| | - Ara Nazarian
- Center for Advanced Orthopaedic Studies, Carl J. Shapiro Department of Orthopaedic Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School , Boston, Massachusetts, United States
| | - Mark W Grinstaff
- Departments of Biomedical Engineering, Chemistry and Medicine, Boston University , 590 Commonwealth Avenue, Boston, Massachusetts 02215, United States
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38
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Schmitt SK, Trebatoski DJ, Krutty JD, Xie AW, Rollins B, Murphy WL, Gopalan P. Peptide Conjugation to a Polymer Coating via Native Chemical Ligation of Azlactones for Cell Culture. Biomacromolecules 2016; 17:1040-7. [PMID: 26835552 PMCID: PMC5172394 DOI: 10.1021/acs.biomac.5b01682] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Conjugation of biomolecules for stable presentation is an essential step toward reliable chemically defined platforms for cell culture studies. In this work, we describe the formation of a stable and site-specific amide bond via the coupling of a cysteine terminated peptide at low concentration to an azlactone containing copolymer coating. A copolymer of polyethylene glycol methyl ether methacrylate-ran-vinyl azlactone-ran-glycidyl methacrylate P(PEGMEMA-r-VDM-r-GMA) was used to form a thin coating (20-30 nm) on silicon and polycarbonate substrates. The formation and stability of coating-peptide bonds for peptides containing free thiols and amines were quantified by X-ray photoelectron spectroscopy (XPS) after exposure to cell culture conditions. Peptides containing a thiol as the only nucleophile coupled via a thioester bond; however, the bond was labile under cell culture conditions and almost all the bound peptides were displaced from the surface over a period of 2 days. Coupling with N-terminal primary amine peptides resulted in the formation of an amide bond with low efficiency (<20%). In contrast, peptides containing an N-terminal cysteine, which contain both nucleophiles (free thiol and amine) in close proximity, bound with 67% efficiency under neutral pH, and were stable under the same conditions for 2 weeks. Control studies confirm that the stable amide formation was a result of an intramolecular rearrangement through a N-acyl intermediate that resembles native chemical ligation. Through a combination of XPS and cell culture studies, we show that the cysteine terminated peptides undergo a native chemical ligation process at low peptide concentration in aqueous media, short reaction time, and at room temperature resulting in the stable presentation of peptides beyond 2 weeks for cell culture studies.
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Affiliation(s)
- Samantha K. Schmitt
- Department of Materials Science and Engineering, University of Wisconsin-Madison, Madison, Wisconsin 53706, United States
| | - David J. Trebatoski
- Department of Materials Science and Engineering, University of Wisconsin-Madison, Madison, Wisconsin 53706, United States
| | - John D. Krutty
- Department of Biomedical Engineering, University of Wisconsin-Madison, Madison, Wisconsin 53706, United States
| | - Angela W. Xie
- Department of Biomedical Engineering, University of Wisconsin-Madison, Madison, Wisconsin 53706, United States
| | - Benjamin Rollins
- Department of Materials Science and Engineering, University of Wisconsin-Madison, Madison, Wisconsin 53706, United States
| | - William L. Murphy
- Department of Materials Science and Engineering, University of Wisconsin-Madison, Madison, Wisconsin 53706, United States
- Department of Biomedical Engineering, University of Wisconsin-Madison, Madison, Wisconsin 53706, United States
- Department of Orthopedics and Rehabilitation, University of Wisconsin-Madison, Madison, Wisconsin 53706, United States
| | - Padma Gopalan
- Department of Materials Science and Engineering, University of Wisconsin-Madison, Madison, Wisconsin 53706, United States
- Department of Chemistry, University of Wisconsin-Madison, Madison, Wisconsin 53706, United States
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39
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Fabrication of PEG–carboxymethylcellulose hydrogel by thiol-norbornene photo-click chemistry. Int J Biol Macromol 2016; 83:1-8. [DOI: 10.1016/j.ijbiomac.2015.11.050] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2015] [Revised: 10/30/2015] [Accepted: 11/18/2015] [Indexed: 01/27/2023]
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40
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41
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Jung JP, Bache-Wiig MK, Provenzano PP, Ogle BM. Heterogeneous Differentiation of Human Mesenchymal Stem Cells in 3D Extracellular Matrix Composites. Biores Open Access 2016; 5:37-48. [PMID: 26862471 PMCID: PMC4744874 DOI: 10.1089/biores.2015.0044] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Extracellular matrix (ECM) proteins are structural elements of tissue and also potent signaling molecules. Previously, our laboratory showed that ECM of 2D coatings can trigger differentiation of bone marrow-derived mesenchymal stem cells (MSCs) into mesodermal lineages in an ECM-specific manner over 14 days, in some cases comparable to chemical induction. To test whether a similar effect was possible in a 3D, tissue-like environment, we designed a synthetic-natural biomaterial composite. The composite can present whole-molecule ECM proteins to cells, even those that do not spontaneously form hydrogels ex vivo, in 3D. To this end, we entrapped collagen type I, laminin-111, or fibronectin in ECM composites with MSCs and directly compared markers of mesodermal differentiation including cardiomyogenic (ACTC1), osteogenic (SPP1), adipogenic (PPARG), and chondrogenic (SOX9) in 2D versus 3D. We found the 3D condition largely mimicked the 2D condition such that the addition of type I collagen was the most potent inducer of differentiation to all lineages tested. One notable difference between 2D and 3D was pronounced adipogenic differentiation in 3D especially in the presence of exogenous collagen type I. In particular, PPARG gene expression was significantly increased ∼16-fold relative to chemical induction, in 3D and not in 2D. Unexpectedly, 3D engagement of ECM proteins also altered immunomodulatory function of MSCs in that expression of IL-6 gene was elevated relative to basal levels in 2D. In fact, levels of IL-6 gene expression in 3D composites containing exogenously supplied collagen type I or fibronectin were statistically similar to levels attained in 2D with tumor necrosis factor-α (TNF-α) stimulation and these levels were sustained over a 2-week period. Thus, this novel biomaterial platform allowed us to compare the biochemical impact of whole-molecule ECM proteins in 2D versus 3D indicating enhanced adipogenic differentiation and IL-6 expression of MSC in the 3D context. Exploiting the biochemical impact of ECM proteins on MSC differentiation and immunomodulation could augment the therapeutic utility of MSCs.
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Affiliation(s)
- Jangwook P Jung
- Department of Biomedical Engineering, University of Minnesota-Twin Cities, Minneapolis, Minnesota.; Stem Cell Institute, University of Minnesota-Twin Cities, Minneapolis, Minnesota
| | - Meredith K Bache-Wiig
- Department of Biomedical Engineering, University of Minnesota-Twin Cities , Minneapolis, Minnesota
| | - Paolo P Provenzano
- Department of Biomedical Engineering, University of Minnesota-Twin Cities, Minneapolis, Minnesota.; Stem Cell Institute, University of Minnesota-Twin Cities, Minneapolis, Minnesota.; Masonic Cancer Center, University of Minnesota-Twin Cities, Minneapolis, Minnesota.; Institute for Engineering in Medicine, University of Minnesota-Twin Cities, Minneapolis, Minnesota
| | - Brenda M Ogle
- Department of Biomedical Engineering, University of Minnesota-Twin Cities, Minneapolis, Minnesota.; Stem Cell Institute, University of Minnesota-Twin Cities, Minneapolis, Minnesota.; Masonic Cancer Center, University of Minnesota-Twin Cities, Minneapolis, Minnesota.; Institute for Engineering in Medicine, University of Minnesota-Twin Cities, Minneapolis, Minnesota.; Lillehei Heart Institute, University of Minnesota-Twin Cities, Minneapolis, Minnesota
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42
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Boere KWM, Blokzijl MM, Visser J, Linssen JEA, Malda J, Hennink WE, Vermonden T. Biofabrication of reinforced 3D-scaffolds using two-component hydrogels. J Mater Chem B 2015; 3:9067-9078. [PMID: 32263038 PMCID: PMC7116180 DOI: 10.1039/c5tb01645b] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Progress in biofabrication technologies is mainly hampered by the limited number of suitable hydrogels that can act as bioinks. Here, we present a new bioink for 3D-printing, capable of forming large, highly defined constructs. Hydrogel formulations consisted of a thermoresponsive polymer mixed with a poly(ethylene glycol) (PEG) or a hyaluronic acid (HA) cross-linker with a total polymer concentration of 11.3 and 9.1 wt% respectively. These polymer solutions were partially cross-linked before plotting by a chemoselective reaction called oxo-ester mediated native chemical ligation, yielding printable formulations. Deposition on a heated plate of 37 °C resulted in the stabilization of the construct due to the thermosensitive nature of the hydrogel. Subsequently, further chemical cross-linking of the hydrogel precursors proceeded after extrusion to form mechanically stable hydrogels that exhibited a storage modulus of 9 kPa after 3 hours. Flow and elastic properties of the polymer solutions and hydrogels were analyzed under similar conditions to those used during the 3D-printing process. These experiments showed the ability to extrude the hydrogels, as well as their rapid recovery after applied shear forces. Hydrogels were printed in grid-like structures, hollow cones and a model representing a femoral condyle, with a porosity of 48 ± 2%. Furthermore, an N-hydroxysuccinimide functionalized thermoplastic poly-ε-caprolactone (PCL) derivative was successfully synthesized and 3D-printed. We demonstrated that covalent grafting of the developed hydrogel to the thermoplastic reinforced network resulted in improved mechanical properties and yielded high construct integrity. Reinforced constructs also containing hyaluronic acid showed high cell viability of chondrocytes, underlining their potential for further use in regenerative medicine applications.
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Affiliation(s)
- Kristel W. M. Boere
- Department of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences (UIPS), Faculty of Science, Utrecht University, P. O. Box 80082, 3508 TB Utrecht, The Netherlands
| | - Maarten M. Blokzijl
- Department of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences (UIPS), Faculty of Science, Utrecht University, P. O. Box 80082, 3508 TB Utrecht, The Netherlands
- Department of Orthopaedics, University Medical Center Utrecht, P.O. Box 85500, 3508 GA Utrecht, The Netherlands
| | - Jetze Visser
- Department of Orthopaedics, University Medical Center Utrecht, P.O. Box 85500, 3508 GA Utrecht, The Netherlands
| | - J. Elder A. Linssen
- Department of Orthopaedics, University Medical Center Utrecht, P.O. Box 85500, 3508 GA Utrecht, The Netherlands
| | - Jos Malda
- Department of Orthopaedics, University Medical Center Utrecht, P.O. Box 85500, 3508 GA Utrecht, The Netherlands
- Department of Equine Sciences, Faculty of Veterinary Medicine, Utrecht University, P.O. Box 80163, 3508 TD Utrecht, The Netherlands
| | - Wim E. Hennink
- Department of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences (UIPS), Faculty of Science, Utrecht University, P. O. Box 80082, 3508 TB Utrecht, The Netherlands
| | - Tina Vermonden
- Department of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences (UIPS), Faculty of Science, Utrecht University, P. O. Box 80082, 3508 TB Utrecht, The Netherlands
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43
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Hacker MC, Nawaz HA. Multi-Functional Macromers for Hydrogel Design in Biomedical Engineering and Regenerative Medicine. Int J Mol Sci 2015; 16:27677-706. [PMID: 26610468 PMCID: PMC4661914 DOI: 10.3390/ijms161126056] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2015] [Revised: 10/31/2015] [Accepted: 11/04/2015] [Indexed: 01/09/2023] Open
Abstract
Contemporary biomaterials are expected to provide tailored mechanical, biological and structural cues to encapsulated or invading cells in regenerative applications. In addition, the degradative properties of the material also have to be adjustable to the desired application. Oligo- or polymeric building blocks that can be further cross-linked into hydrogel networks, here addressed as macromers, appear as the prime option to assemble gels with the necessary degrees of freedom in the adjustment of the mentioned key parameters. Recent developments in the design of multi-functional macromers with two or more chemically different types of functionalities are summarized and discussed in this review illustrating recent trends in the development of advanced hydrogel building blocks for regenerative applications.
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Affiliation(s)
- Michael C Hacker
- Institute of Pharmacy, Pharmaceutical Technology, Leipzig University, Eilenburger Str. 15a, D-04317 Leipzig, Germany.
| | - Hafiz Awais Nawaz
- Institute of Pharmacy, Pharmaceutical Technology, Leipzig University, Eilenburger Str. 15a, D-04317 Leipzig, Germany.
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44
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Nguyen QV, Huynh DP, Park JH, Lee DS. Injectable polymeric hydrogels for the delivery of therapeutic agents: A review. Eur Polym J 2015. [DOI: 10.1016/j.eurpolymj.2015.03.016] [Citation(s) in RCA: 105] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
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45
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Barbosa M, Martins MCL, Gomes P. Grafting Techniques towards Production of Peptide-Tethered Hydrogels, a Novel Class of Materials with Biomedical Interest. Gels 2015; 1:194-218. [PMID: 30674173 PMCID: PMC6318633 DOI: 10.3390/gels1020194] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2015] [Revised: 10/01/2015] [Accepted: 10/13/2015] [Indexed: 12/28/2022] Open
Abstract
In recent years, new highly functional polymeric biomaterials are being developed to increase the therapeutic efficacy in tissue regeneration approaches. Peptides regulate most physiological processes and display several other biological activities. Therefore, their importance in the field of biomedical research and drug development is rapidly increasing. However, the use of peptides as therapeutic agents is restricted by some of their physicochemical properties. The development of improved routes of delivery of peptide-based therapeutics is crucial and is crucial and its biomedical value is expected to increase in the near future. The unique properties of hydrogels triggered their spreading as localized drug depots. Several strategies, such as the carbodiimide chemistry, have been used to successfully immobilize bioactive peptide sequences into the hydrogels backbone. Peptide tethering through the so-called "click" chemistry reactions is also a highly promising, yet underexplored, approach to the synthesis of hydrogels with varying dimensions and patterns. The present review focus on the approaches that are being used for the establishment of chemical bonds between peptides and non-peptidic hydrogels throughout the last decade.
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Affiliation(s)
- Mariana Barbosa
- UCIBIO-REQUIMTE, Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade do Porto, P-4169-007 Porto, Portugal.
| | - M Cristina L Martins
- Instituto de Investigação e Inovação em Saúde, Universidade do Porto, P-4200-135 Porto, Portugal.
- INEB-Instituto de Engenharia Biomédica, Universidade do Porto, P-4150-180 Porto, Portugal.
- Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, P-4169-007 Porto, Portugal.
| | - Paula Gomes
- UCIBIO-REQUIMTE, Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade do Porto, P-4169-007 Porto, Portugal.
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Boere KWM, van den Dikkenberg J, Gao Y, Visser J, Hennink WE, Vermonden T. Thermogelling and Chemoselectively Cross-Linked Hydrogels with Controlled Mechanical Properties and Degradation Behavior. Biomacromolecules 2015; 16:2840-51. [DOI: 10.1021/acs.biomac.5b00802] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Kristel W. M. Boere
- Department
of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences (UIPS),
Faculty of Science, Utrecht University, P.O. Box 80082, 3508 TB Utrecht, The Netherlands
| | - Joep van den Dikkenberg
- Department
of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences (UIPS),
Faculty of Science, Utrecht University, P.O. Box 80082, 3508 TB Utrecht, The Netherlands
| | - Yuan Gao
- Department
of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences (UIPS),
Faculty of Science, Utrecht University, P.O. Box 80082, 3508 TB Utrecht, The Netherlands
| | - Jetze Visser
- Department
of Orthopaedics, University Medical Center Utrecht, P.O. Box 85500, 3508 GA Utrecht, The Netherlands
| | - Wim E. Hennink
- Department
of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences (UIPS),
Faculty of Science, Utrecht University, P.O. Box 80082, 3508 TB Utrecht, The Netherlands
| | - Tina Vermonden
- Department
of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences (UIPS),
Faculty of Science, Utrecht University, P.O. Box 80082, 3508 TB Utrecht, The Netherlands
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Zhang X, Sun P, Huangshan L, Hu BH, Messersmith PB. Improved method for synthesis of cysteine modified hyaluronic acid for in situ hydrogel formation. Chem Commun (Camb) 2015; 51:9662-5. [PMID: 25977950 PMCID: PMC4449282 DOI: 10.1039/c5cc02367j] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
We developed a new strategy for the functionalization of hyaluronic acid by chemical modification of its C-6 hydroxyl groups through an ether bond to obtain a cysteine-hyaluronic acid conjugate. This conjugate is suitable to prepare injectable and in situ formed hydrogels cross-linked by native chemical ligation and Michael addition under mild conditions.
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Affiliation(s)
- Xin Zhang
- Key Laboratory of Tropical Biological Resources of Ministry of Education, College of Oceanography, Hainan University, Haikou, Hainan Province 570228, China
| | - Pengcheng Sun
- Key Laboratory of Tropical Biological Resources of Ministry of Education, College of Oceanography, Hainan University, Haikou, Hainan Province 570228, China
| | - Lingzi Huangshan
- Key Laboratory of Tropical Biological Resources of Ministry of Education, College of Oceanography, Hainan University, Haikou, Hainan Province 570228, China
| | - Bi-Huang Hu
- Key Laboratory of Tropical Biological Resources of Ministry of Education, College of Oceanography, Hainan University, Haikou, Hainan Province 570228, China
| | - Phillip B. Messersmith
- Departments of Bioengineering and Materials Science and Engineering, University of California, Berkeley, CA, 94720-1760, USA
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Mazunin D, Broguiere N, Zenobi-Wong M, Bode JW. Synthesis of Biocompatible PEG Hydrogels by pH-Sensitive Potassium Acyltrifluoroborate (KAT) Amide Ligations. ACS Biomater Sci Eng 2015; 1:456-462. [DOI: 10.1021/acsbiomaterials.5b00145] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Dmitry Mazunin
- Laboratorium
für Organische Chemie, Department of Chemistry and Applied
Biosciences, ETH−Zürich, Vladimir-Prelog-Weg 3, 8093 Zürich, Switzerland
| | - Nicolas Broguiere
- Cartilage
Engineering and Regeneration Laboratory, Department of Health Science
and Technology, ETH−Zürich, Otto-Stern-Weg 7, 8093 Zürich, Switzerland
| | - Marcy Zenobi-Wong
- Cartilage
Engineering and Regeneration Laboratory, Department of Health Science
and Technology, ETH−Zürich, Otto-Stern-Weg 7, 8093 Zürich, Switzerland
| | - Jeffrey W. Bode
- Laboratorium
für Organische Chemie, Department of Chemistry and Applied
Biosciences, ETH−Zürich, Vladimir-Prelog-Weg 3, 8093 Zürich, Switzerland
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49
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Rasale DB, Das AK. Chemical reactions directed Peptide self-assembly. Int J Mol Sci 2015; 16:10797-820. [PMID: 25984603 PMCID: PMC4463676 DOI: 10.3390/ijms160510797] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2015] [Accepted: 05/04/2015] [Indexed: 01/12/2023] Open
Abstract
Fabrication of self-assembled nanostructures is one of the important aspects in nanoscience and nanotechnology. The study of self-assembled soft materials remains an area of interest due to their potential applications in biomedicine. The versatile properties of soft materials can be tuned using a bottom up approach of small molecules. Peptide based self-assembly has significant impact in biology because of its unique features such as biocompatibility, straight peptide chain and the presence of different side chain functionality. These unique features explore peptides in various self-assembly process. In this review, we briefly introduce chemical reaction-mediated peptide self-assembly. Herein, we have emphasised enzymes, native chemical ligation and photochemical reactions in the exploration of peptide self-assembly.
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Affiliation(s)
- Dnyaneshwar B Rasale
- Department of Chemistry, Indian Institute of Technology Indore, Khandwa Road, Indore 452017, India.
| | - Apurba K Das
- Department of Chemistry, Indian Institute of Technology Indore, Khandwa Road, Indore 452017, India.
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50
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Schmitz M, Kuhlmann M, Reimann O, Hackenberger CR, Groll J. Side-chain cysteine-functionalized poly(2-oxazoline)s for multiple peptide conjugation by native chemical ligation. Biomacromolecules 2015; 16:1088-94. [PMID: 25728550 PMCID: PMC4428813 DOI: 10.1021/bm501697t] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2014] [Revised: 02/27/2015] [Indexed: 12/19/2022]
Abstract
We prepared statistical copolymers composed of 2-methyl-2-oxazoline (MeOx) in combination with 2-butenyl-2-oxazoline (BuOx) or 2-decenyl-2-oxazoline (DecOx) as a basis for polymer analogous introduction of 1,2-aminothiol moieties at the side chain. MeOx provides hydrophilicity as well as cyto- and hemocompatibility, whereas the alkene groups of BuOx and DecOx serve for functionalization with a thiofunctional thiazolidine by UV-mediated thiol-ene reaction. After deprotection the cysteine content in functionalized poly(2-oxazoline) (POx) is quantified by NMR and a modified trinitrobenzenesulfonic acid assay. The luminescent cell viability assay shows no negative influence of cysteine-functionalized POx (cys-POx) concerning cell viability and cell number. cys-POx was used for multiple chemically orthogonal couplings with thioester-terminated peptides through native chemical ligation (NCL), which was performed and confirmed by NMR and MALDI-ToF measurements.
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Affiliation(s)
- Michael Schmitz
- Department
of Functional Materials in Medicine and Dentistry, University of Würzburg, Pleicherwall 2, 97070 Würzburg, Germany
| | - Matthias Kuhlmann
- Department
of Functional Materials in Medicine and Dentistry, University of Würzburg, Pleicherwall 2, 97070 Würzburg, Germany
| | - Oliver Reimann
- Department
Chemical Biology II, Leibniz-Institut für
Molekulare Pharmakologie (FMP), Robert-Rössle-Straße 10, 13125 Berlin, Germany
| | - Christian
P. R. Hackenberger
- Department
Chemical Biology II, Leibniz-Institut für
Molekulare Pharmakologie (FMP), Robert-Rössle-Straße 10, 13125 Berlin, Germany
- Humboldt
Universität zu Berlin, Department
Chemie, Brook-Taylor-Straße
2, 12489 Berlin, Germany
| | - Jürgen Groll
- Department
of Functional Materials in Medicine and Dentistry, University of Würzburg, Pleicherwall 2, 97070 Würzburg, Germany
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