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Gaspar-Morales EA, Waterston A, Sadqi M, Diaz-Parga P, Smith AM, Gopinath A, Andresen Eguiluz RC, de Alba E. Natural and Engineered Isoforms of the Inflammasome Adaptor ASC Form Noncovalent, pH-Responsive Hydrogels. Biomacromolecules 2023; 24:5563-5577. [PMID: 37930828 DOI: 10.1021/acs.biomac.3c00409] [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] [Indexed: 11/08/2023]
Abstract
The protein ASC polymerizes into intricate filament networks to assemble the inflammasome, a filamentous multiprotein complex that triggers the inflammatory response. ASC carries two Death Domains integrally involved in protein self-association for filament assembly. We have leveraged this behavior to create noncovalent, pH-responsive hydrogels of full-length, folded ASC by carefully controlling the pH as a critical factor in the polymerization process. We show that natural variants of ASC (ASC isoforms) involved in inflammasome regulation also undergo hydrogelation. To further demonstrate this general capability, we engineered proteins inspired by the ASC structure that also form hydrogels. We analyzed the structural network of the natural and engineered protein hydrogels using transmission and scanning electron microscopy and studied their viscoelastic behavior using shear rheology. Our results reveal one of the very few examples of hydrogels created by the self-assembly of globular proteins and domains in their native conformation and show that Death Domains can be used alone or as building blocks to engineer bioinspired hydrogels.
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2
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Gaspar-Morales EA, Waterston A, Diaz-Parga P, Smith AM, Sadqi M, Gopinath A, Andresen Eguiluz RC, de Alba E. Natural and engineered isoforms of the inflammasome adaptor ASC form non-covalent, pH-responsive hydrogels. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.05.03.539154. [PMID: 37205378 PMCID: PMC10187214 DOI: 10.1101/2023.05.03.539154] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
The protein ASC polymerizes into intricate filament networks to assemble the inflammasome, a filamentous multiprotein complex that triggers the inflammatory response. ASC carries two Death Domains integrally involved in protein self-association for filament assembly. We have leveraged this behavior to create non-covalent, pH-responsive hydrogels of full-length, folded ASC by carefully controlling the pH as a critical factor in the polymerization process. We show that natural variants of ASC (ASC isoforms) involved in inflammasome regulation also undergo hydrogelation. To further demonstrate this general capability, we engineered proteins inspired in the ASC structure that successfully form hydrogels. We analyzed the structural network of the natural and engineered protein hydrogels using transmission and scanning electron microscopy, and studied their viscoelastic behavior by shear rheology. Our results reveal one of the very few examples of hydrogels created by the self-assembly of globular proteins and domains in their native conformation and show that Death Domains can be used alone or as building blocks to engineer bioinspired hydrogels.
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3
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Fernandes CSM, Pina AS, Roque ACA. Affinity-triggered hydrogels: Developments and prospects in biomaterials science. Biomaterials 2020; 268:120563. [PMID: 33276200 DOI: 10.1016/j.biomaterials.2020.120563] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2020] [Revised: 11/17/2020] [Accepted: 11/19/2020] [Indexed: 01/05/2023]
Affiliation(s)
- Cláudia S M Fernandes
- UCIBIO, Chemistry Department, School of Science and Technology, NOVA University of Lisbon, Campus Caparica, 2829-516, Caparica, Portugal
| | - Ana Sofia Pina
- UCIBIO, Chemistry Department, School of Science and Technology, NOVA University of Lisbon, Campus Caparica, 2829-516, Caparica, Portugal
| | - Ana Cecília A Roque
- UCIBIO, Chemistry Department, School of Science and Technology, NOVA University of Lisbon, Campus Caparica, 2829-516, Caparica, Portugal.
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4
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Uman S, Dhand A, Burdick JA. Recent advances in shear‐thinning and self‐healing hydrogels for biomedical applications. J Appl Polym Sci 2020. [DOI: 10.1002/app.48668] [Citation(s) in RCA: 100] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Selen Uman
- Department of BioengineeringUniversity of Pennsylvania Philadelphia Pennsylvania 19104
| | - Abhishek Dhand
- Department of Chemical and Biomolecular EngineeringUniversity of Pennsylvania Philadelphia Pennsylvania 19104
| | - Jason A. Burdick
- Department of BioengineeringUniversity of Pennsylvania Philadelphia Pennsylvania 19104
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5
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Li Y, Xue B, Cao Y. 100th Anniversary of Macromolecular Science Viewpoint: Synthetic Protein Hydrogels. ACS Macro Lett 2020; 9:512-524. [PMID: 35648497 DOI: 10.1021/acsmacrolett.0c00109] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Our bodies are composed of soft tissues made of various proteins. In contrast, most hydrogels designed for biological applications are made of synthetic polymers. Recently, it is increasingly recognized that genetically synthesized proteins can be tailored as building blocks of hydrogels with biological, chemical, and mechanical properties similar to native soft tissues. In this Viewpoint, we summarize recent progress in synthetic protein hydrogels. We compare the structural and mechanical properties of different protein building blocks. We discuss various biocompatible cross-linking strategies based on covalent chemical reactions and noncovalent physical interactions. We introduce how stimulus-responsive conformational changes or intermolecular interactions at the molecular level can be used to engineer responsive hydrogels. We highlight that hydrogel network structures are as important as the protein sequences for the properties and functions of protein hydrogels and should be carefully designed. Despite great progress and potentials of synthetic protein hydrogels, there are still quite a few unsettled challenges and unexploited opportunities, providing abundant room for future investigation and development, particularly as this field is quickly expanding beyond its initial stage. We discuss a number of possible directions, including optimizing protein production and reducing cost, engineering anisotropic hydrogels to better mimic native tissues, rationally designing hydrogel mechanical properties, investigating interplays of hydrogels and residing cells for 3D cell culture and organoid construction, and evaluating long-term cytotoxicity and immune response.
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Affiliation(s)
- Ying Li
- School of Chemistry and Materials Science, Nanjing University of Information Science and Technology (NUIST), Nanjing, China 210044
| | - Bin Xue
- Collaborative Innovation Center of Advanced Microstructures, National Laboratory of Solid State Microstructure, Department of Physics, Nanjing University, Nanjing, China 210093
| | - Yi Cao
- Collaborative Innovation Center of Advanced Microstructures, National Laboratory of Solid State Microstructure, Department of Physics, Nanjing University, Nanjing, China 210093
- Chemistry and Biomedicine Innovation Center (ChemBIC), Nanjing University, Nanjing, China, 210023
- Institute of Brain Science, Nanjing University, Nanjing, China, 210023
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6
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Wooster TJ, Acquistapace S, Mettraux C, Donato L, Dekkers BL. Hierarchically structured phase separated biopolymer hydrogels create tailorable delayed burst release during gastrointestinal digestion. J Colloid Interface Sci 2019; 553:308-319. [PMID: 31212230 DOI: 10.1016/j.jcis.2019.06.033] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2019] [Revised: 06/09/2019] [Accepted: 06/11/2019] [Indexed: 12/14/2022]
Abstract
The on demand delivery of novel peptide actives, traditional pharmaceuticals, nutrients and/or vitamins is a ever present challenge due to the digestive and metabolic degradation of the active and the delivery vehicle. Biodegradable biopolymer hydrogels have long held promise as candidates for creating tailored release profiles due to the ability to control gel porosity. The present study describes the creation of novel hierarchical biopolymer hydrogels for the controlled release of lipids/lipophilic actives pharmaceutical ingredients (APIs), and mathematically describes the mechanisms that affect the timing of release. The creation of phase separated protein/polysaccharide core (6.6 wt% gelatin, 40 wt% Oil in water emulsion) shell structures (7 g/L xanthan with 70-140 g/L β-lactoglobulin) altered enzyme mass transport processes. This core shell structure enabled the creation of a tailorable burst release of API during gastrointestinal digestion where there is a delay in the onset of release, without affecting the kinetics of release. The timing of the delay could be readily programmed (with release of between 60 and 240 min) by controlling either the thickness or protein concentration (between 70 g/L and 140 g/L β-lactoglobulin) of the outer mixed biopolymer hydrogel shell (7 g/L xanthan with 70-140 g/L β-lactoglobulin). Enzyme diffusion measurements demonstrated that surface erosion was the main degradation mechanism. A kinetic model was created to describe the delayed burst release behaviour of APIs encapsulated within the core, and successfully predicted the influence of shell thickness and shell protein density on the timing of gastro-intestinal release (in vitro). Our work highlights the creation of a novel family of core-shell hydrogel oral dosage forms capable of programmable delivery of lipids/lipophilic APIs. These findings could have considerable implications for the delivery of peptides, poorly soluble drugs, or the programmed delivery of lipids within the gastrointestinal tract.
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Affiliation(s)
- T J Wooster
- Nestec S.A., Nestlé Research Centre, Vers-chez-les-Blanc, CH 1000, Switzerland.
| | - S Acquistapace
- Nestec S.A., Nestlé Research Centre, Vers-chez-les-Blanc, CH 1000, Switzerland
| | - C Mettraux
- Nestec S.A., Nestlé Research Centre, Vers-chez-les-Blanc, CH 1000, Switzerland
| | - L Donato
- Nestec S.A., Nestlé Research Centre, Vers-chez-les-Blanc, CH 1000, Switzerland
| | - B L Dekkers
- Nestec S.A., Nestlé Research Centre, Vers-chez-les-Blanc, CH 1000, Switzerland
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7
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Lim S, Jung GA, Muckom RJ, Glover DJ, Clark DS. Engineering bioorthogonal protein-polymer hybrid hydrogel as a functional protein immobilization platform. Chem Commun (Camb) 2019; 55:806-809. [PMID: 30574651 PMCID: PMC6370476 DOI: 10.1039/c8cc08720b] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
We demonstrate the synthesis of protein-polymer hybrid hydrogel that can be used as a platform for immobilizing functional proteins. Orthogonal chemistry was employed for cross-linking the hybrid network and conjugating proteins to the gel backbone, allowing for the convenient, one-pot formation of a functionalized hydrogel. The resulting hydrogel had tunable mechanical properties, was stable in solution, and biocompatible.
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Affiliation(s)
- Samuel Lim
- Department of Chemical and Biomolecular Engineering, University of California, Berkeley, CA 94720, USA.
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8
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9
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Streptavidin-hydrogel prepared by sortase A-assisted click chemistry for enzyme immobilization on an electrode. Biosens Bioelectron 2018; 99:56-61. [DOI: 10.1016/j.bios.2017.07.044] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2017] [Revised: 07/14/2017] [Accepted: 07/18/2017] [Indexed: 02/08/2023]
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10
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Lee G, Jaiswal M, Gaharwar AK, Chen Z. Versatile Click‐Protein Hydrogels for Biomedical Applications. ChemistrySelect 2017. [DOI: 10.1002/slct.201701960] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Affiliation(s)
- Gunhye Lee
- Department of Chemical Engineering Texas A&M University, College Station, TX USA
- Department of Microbial Pathogenesis and Immunology Texas A&M University, College Station, TX USA
- School of Public Health TAMU 1114, Building 234 A, College Station, TX 77843 USA
| | - Manish Jaiswal
- Department of Biomedical Engineering Texas A&M University, College Station, TX USA
| | - Akhilesh K. Gaharwar
- Department of Biomedical Engineering Texas A&M University, College Station, TX USA
| | - Zhilei Chen
- Department of Microbial Pathogenesis and Immunology Texas A&M University, College Station, TX USA
- School of Public Health TAMU 1114, Building 234 A, College Station, TX 77843 USA
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11
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Gu Y, Lu M, Wang Z, Wu X, Chen Y. Expanding the Catalytic Promiscuity of Heparinase III from Pedobacter heparinus. Chemistry 2017; 23:2548-2551. [DOI: 10.1002/chem.201605929] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2016] [Indexed: 01/23/2023]
Affiliation(s)
- Yayun Gu
- State Key Laboratory of Natural Medicines and Laboratory of Chemical Biology; China Pharmaceutical University; 24 Tongjia St. Nanjing Jiangsu Province 210009 P. R. China
| | - Meiling Lu
- State Key Laboratory of Natural Medicines and Laboratory of Chemical Biology; China Pharmaceutical University; 24 Tongjia St. Nanjing Jiangsu Province 210009 P. R. China
| | - Zongqiang Wang
- State Key Laboratory of Natural Medicines and Laboratory of Chemical Biology; China Pharmaceutical University; 24 Tongjia St. Nanjing Jiangsu Province 210009 P. R. China
| | - Xuri Wu
- State Key Laboratory of Natural Medicines and Laboratory of Chemical Biology; China Pharmaceutical University; 24 Tongjia St. Nanjing Jiangsu Province 210009 P. R. China
| | - Yijun Chen
- State Key Laboratory of Natural Medicines and Laboratory of Chemical Biology; China Pharmaceutical University; 24 Tongjia St. Nanjing Jiangsu Province 210009 P. R. China
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12
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Chen D, Hou W, Wu D, Wu Y, Cheng G, Zhao H. Protein-Cross-Linked Triple-Responsive Polymer Networks Based on Molecular Recognition. ACS Macro Lett 2016; 5:1222-1226. [PMID: 35614749 DOI: 10.1021/acsmacrolett.6b00750] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Hydrogels containing protein components are a type of promising biomaterial. In this paper, we designed triple-responsive polymer-protein networks based on molecular recognition. Reduced bovine serum albumin (BSA) was modified with multiple β-cyclodextrin (βCD) by thiol-disulfide exchange reaction. The βCD-modified BSA was added into the aqueous solution of acrylamide copolymer with pendant adamantyl groups, resulting in the formation of polymer-protein network structures. The assembled polymer networks show triple-responsive behaviors upon treatment with trypsin, reduced glutathione, or native βCD. The network structures may find applications in tissue engineering and drug controlled release.
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Affiliation(s)
- Dawei Chen
- Key
Laboratory of Functional Polymer Materials, Ministry of Education,
College of Chemistry, Nankai University; Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300071, China
| | - Wangmeng Hou
- Key
Laboratory of Functional Polymer Materials, Ministry of Education,
College of Chemistry, Nankai University; Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300071, China
| | - Dongxia Wu
- The
Institute of Seawater Desalination and Multipurpose Utilization, SOA, Tianjin 300192, China
| | - Yunfang Wu
- The
Institute of Seawater Desalination and Multipurpose Utilization, SOA, Tianjin 300192, China
| | - Guochen Cheng
- The
Institute of Seawater Desalination and Multipurpose Utilization, SOA, Tianjin 300192, China
| | - Hanying Zhao
- Key
Laboratory of Functional Polymer Materials, Ministry of Education,
College of Chemistry, Nankai University; Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300071, China
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13
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Abstract
Proteins are nature's building blocks and indispensable in living organisms. Protein-based hydrogels have a wide variety of applications in research and biotechnology. In this chapter, we describe an intein-mediated protein hydrogel that utilizes two synthetic soluble protein block copolymers, each containing a subunit of a trimeric protein that serves as a cross-linker and one half of the naturally split DnaE intein from Nostoc punctiforme. Mixing of these two protein block copolymers initiates an intein trans-splicing reaction that constitutes a self-assembling polypeptide flanked by cross-linkers, triggering protein hydrogel formation. The generated hydrogels are highly stable under both acidic and basic conditions, and at temperatures up to 50 °C. In addition, these hydrogels are able to undergo rapid reassembly after shear-induced rupture. Incorporation of an appropriate binding motif into the protein block copolymers enables the convenient site-specific incorporation of functional globular proteins into the hydrogel network.
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14
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Domeradzka NE, Werten MWT, Wolf FAD, de Vries R. Protein cross-linking tools for the construction of nanomaterials. Curr Opin Biotechnol 2016; 39:61-67. [DOI: 10.1016/j.copbio.2016.01.003] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2015] [Revised: 01/06/2016] [Accepted: 01/11/2016] [Indexed: 12/26/2022]
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15
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Renner JN, Minteer SD. The use of engineered protein materials in electrochemical devices. Exp Biol Med (Maywood) 2016; 241:980-5. [PMID: 27188516 PMCID: PMC4950353 DOI: 10.1177/1535370216647127] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
Bioelectrochemical technologies have an important and growing role in healthcare, with applications in sensing and diagnostics, as well as the potential to be used as implantable power sources and be integrated with automated drug delivery systems. Challenges associated with enzyme-based electrodes include low current density and short functional lifetimes. Protein engineering is emerging as a powerful tool to overcome these issues. By taking advantage of the ability to precisely define protein sequences, electrodes can be organized into high performing structures, and enable the next generation of medical devices.
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Affiliation(s)
- Julie N Renner
- Department of Chemical & Biomolecular Engineering, Case Western Reserve University, Cleveland, OH 44106, USA
| | - Shelley D Minteer
- Department of Chemistry, University of Utah, Salt Lake City, UT 84112, USA
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16
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Horn AHC, Sticht H. Synthetic Protein Scaffolds Based on Peptide Motifs and Cognate Adaptor Domains for Improving Metabolic Productivity. Front Bioeng Biotechnol 2015; 3:191. [PMID: 26636078 PMCID: PMC4655305 DOI: 10.3389/fbioe.2015.00191] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2015] [Accepted: 11/05/2015] [Indexed: 01/01/2023] Open
Abstract
The efficiency of many cellular processes relies on the defined interaction among different proteins within the same metabolic or signaling pathway. Consequently, a spatial colocalization of functionally interacting proteins has frequently emerged during evolution. This concept has been adapted within the synthetic biology community for the purpose of creating artificial scaffolds. A recent advancement of this concept is the use of peptide motifs and their cognate adaptor domains. SH2, SH3, GBD, and PDZ domains have been used most often in research studies to date. The approach has been successfully applied to the synthesis of a variety of target molecules including catechin, D-glucaric acid, H2, hydrochinone, resveratrol, butyrate, gamma-aminobutyric acid, and mevalonate. Increased production levels of up to 77-fold have been observed compared to non-scaffolded systems. A recent extension of this concept is the creation of a covalent linkage between peptide motifs and adaptor domains, which leads to a more stable association of the scaffolded systems and thus bears the potential to further enhance metabolic productivity.
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Affiliation(s)
- Anselm H C Horn
- Bioinformatik, Institut für Biochemie, Friedrich-Alexander-Universität Erlangen-Nürnberg , Erlangen , Germany
| | - Heinrich Sticht
- Bioinformatik, Institut für Biochemie, Friedrich-Alexander-Universität Erlangen-Nürnberg , Erlangen , Germany
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17
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Menegatti S, Ruocco N, Kumar S, Zakrewsky M, Sanchez De Oliveira J, Helgeson ME, Leal GL, Mitragotri S. Synthesis and characterization of a self-fluorescent hyaluronic acid-based gel for dermal applications. Adv Healthc Mater 2015; 4:2297-305. [PMID: 26371956 DOI: 10.1002/adhm.201500619] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2015] [Indexed: 01/17/2023]
Abstract
Combinations of polymer conjugates affording in situ gelation hold promise for treatment of pathological cavities (e.g., arthritis) and sustained drug release. In particular, hyaluronic acid (HA) functionalized with reactive groups is regarded as an excellent biomaterial due to its tunable cross-linking kinetics and mechanical properties. HA-based reagents, however, can be irritating to surrounding tissues due to the reactivity of pendant groups, and their fast gelation kinetics can result in poor cavity filling. In this study, a biocompatible "click" reaction between cyanobenzothiazole (CBT) and d-cysteine (d-Cys) is employed to produce HA-based conjugates for in situ gelation. Rheological studies conducted on a gel obtained from the combination of HA-CBT and HA-d-Cys indicate optimal gelation time and mechanical properties. Further, in vitro studies on porcine skin demonstrate the ability of the gel to form in situ upon subcutaneous injection or topical application, and to act as a reservoir for sustained release of protein therapeutics. Finally, the safety of the HA-based conjugates is demonstrated on human keratinocytes. The presented results demonstrate the applicability of the binary mixture for in situ gelation and the potential of the proposed system for a variety of biomedical applications.
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Affiliation(s)
- Stefano Menegatti
- Department of Chemical Engineering; Center for Bioengineering; University of California; Santa Barbara CA 93106 USA
| | - Nino Ruocco
- Department of Chemical Engineering; Center for Bioengineering; University of California; Santa Barbara CA 93106 USA
| | - Sunny Kumar
- Department of Chemical Engineering; Center for Bioengineering; University of California; Santa Barbara CA 93106 USA
| | - Michael Zakrewsky
- Department of Chemical Engineering; Center for Bioengineering; University of California; Santa Barbara CA 93106 USA
| | - Joshua Sanchez De Oliveira
- Department of Chemical Engineering; Center for Bioengineering; University of California; Santa Barbara CA 93106 USA
| | - Matthew. E. Helgeson
- Department of Chemical Engineering; Center for Bioengineering; University of California; Santa Barbara CA 93106 USA
| | - Gary L. Leal
- Department of Chemical Engineering; Center for Bioengineering; University of California; Santa Barbara CA 93106 USA
| | - Samir Mitragotri
- Department of Chemical Engineering; Center for Bioengineering; University of California; Santa Barbara CA 93106 USA
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18
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Wang H, Heilshorn SC. Adaptable hydrogel networks with reversible linkages for tissue engineering. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2015; 27:3717-36. [PMID: 25989348 PMCID: PMC4528979 DOI: 10.1002/adma.201501558] [Citation(s) in RCA: 420] [Impact Index Per Article: 46.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2015] [Revised: 04/18/2015] [Indexed: 05/19/2023]
Abstract
Adaptable hydrogels have recently emerged as a promising platform for three-dimensional (3D) cell encapsulation and culture. In conventional, covalently crosslinked hydrogels, degradation is typically required to allow complex cellular functions to occur, leading to bulk material degradation. In contrast, adaptable hydrogels are formed by reversible crosslinks. Through breaking and re-formation of the reversible linkages, adaptable hydrogels can be locally modified to permit complex cellular functions while maintaining their long-term integrity. In addition, these adaptable materials can have biomimetic viscoelastic properties that make them well suited for several biotechnology and medical applications. In this review, an overview of adaptable-hydrogel design considerations and linkage selections is presented, with a focus on various cell-compatible crosslinking mechanisms that can be exploited to form adaptable hydrogels for tissue engineering.
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Affiliation(s)
- Huiyuan Wang
- Department of Materials Science & Engineering, Stanford University, Stanford, CA 94305, USA
| | - Sarah C. Heilshorn
- Department of Materials Science & Engineering, Stanford University, Stanford, CA 94305, USA
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19
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Tan CY, Hirakawa H, Nagamune T. Supramolecular protein assembly supports immobilization of a cytochrome P450 monooxygenase system as water-insoluble gel. Sci Rep 2015; 5:8648. [PMID: 25733255 PMCID: PMC4346803 DOI: 10.1038/srep08648] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2014] [Accepted: 01/29/2015] [Indexed: 01/05/2023] Open
Abstract
Diverse applications of the versatile bacterial cytochrome P450 enzymes (P450s) are hampered by their requirement for the auxiliary proteins, ferredoxin reductases and ferredoxins, that transfer electrons to P450s. Notably, this limits the use of P450s as immobilized enzymes for industrial purposes. Herein, we demonstrate the immobilization of a bacterial P450 and its redox protein partners by supramolecular complex formation using a self-assembled heterotrimeric protein. Employment of homodimeric phosphite dehydrogenase (PTDH) for cross-linking “proliferating cell nuclear antigen-utilized protein complex of P450 and its two electron transfer-related proteins” (PUPPET) yielded a gelling PUPPET-PTDH system capable of regenerating NADH for electron supply owing to its phosphite oxidation activity. The protein gel catalyzed monooxygenation in the presence of phosphite and NAD+. The gel was completely water-insoluble and could be reused. This concept of oligomeric protein-insolubilized enzymes can be widely applied to various multienzymatic reactions such as cascade reactions and coupling reactions.
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Affiliation(s)
- Cheau Yuaan Tan
- Department of Bioengineering, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Hidehiko Hirakawa
- Department of Chemistry and Biotechnology, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Teruyuki Nagamune
- 1] Department of Bioengineering, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan [2] Department of Chemistry and Biotechnology, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
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20
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Guan D, Kurra Y, Liu W, Chen Z. A click chemistry approach to site-specific immobilization of a small laccase enables efficient direct electron transfer in a biocathode. Chem Commun (Camb) 2015; 51:2522-5. [DOI: 10.1039/c4cc09179e] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Controlled orientation of a small laccase on a multi-walled carbon nanotube electrode was achieved via copper-free click chemistry mediated immobilization.
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Affiliation(s)
- Dongli Guan
- Chemical Engineering Department
- Texas A&M University
- College Station
- USA
| | - Yadagiri Kurra
- Department of Chemistry
- Texas A&M University
- College Station
- USA
| | - Wenshe Liu
- Department of Chemistry
- Texas A&M University
- College Station
- USA
| | - Zhilei Chen
- Chemical Engineering Department
- Texas A&M University
- College Station
- USA
- Department of Microbial Pathogenesis & Immunology
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21
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Gao X, Zhao C, Yu T, Yang S, Ren Y, Wei D. Construction of a reusable multi-enzyme supramolecular device via disulfide bond locking. Chem Commun (Camb) 2015; 51:10131-3. [DOI: 10.1039/c5cc02544c] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A strategy for constructing a reusable multi-enzyme supramolecular device was developed by reprogramming protein–protein interactions and disulfide locking.
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Affiliation(s)
- Xin Gao
- State Key Laboratory of Bioreactor Engineering
- New World Institute of Biotechnology
- East China University of Science and Technology
- Shanghai 200237
- China
| | - Chengcheng Zhao
- State Key Laboratory of Bioreactor Engineering
- New World Institute of Biotechnology
- East China University of Science and Technology
- Shanghai 200237
- China
| | - Ting Yu
- State Key Laboratory of Bioreactor Engineering
- New World Institute of Biotechnology
- East China University of Science and Technology
- Shanghai 200237
- China
| | - Shengli Yang
- State Key Laboratory of Bioreactor Engineering
- New World Institute of Biotechnology
- East China University of Science and Technology
- Shanghai 200237
- China
| | - Yuhong Ren
- State Key Laboratory of Bioreactor Engineering
- New World Institute of Biotechnology
- East China University of Science and Technology
- Shanghai 200237
- China
| | - Dongzhi Wei
- State Key Laboratory of Bioreactor Engineering
- New World Institute of Biotechnology
- East China University of Science and Technology
- Shanghai 200237
- China
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22
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Markiewicz BN, Culik RM, Gai F. Tightening up the structure, lighting up the pathway: Application of molecular constraints and light to manipulate protein folding, self-assembly and function. Sci China Chem 2014; 57:1615-1624. [PMID: 25722715 PMCID: PMC4337807 DOI: 10.1007/s11426-014-5225-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Chemical cross-linking provides an effective avenue to reduce the conformational entropy of polypeptide chains and hence has become a popular method to induce or force structural formation in peptides and proteins. Recently, other types of molecular constraints, especially photoresponsive linkers and functional groups, have also found increased use in a wide variety of applications. Herein, we provide a concise review of using various forms of molecular strategies to constrain proteins, thereby stabilizing their native states, gaining insight into their folding mechanisms, and/or providing a handle to trigger a conformational process of interest with light. The applications discussed here cover a wide range of topics, ranging from delineating the details of the protein folding energy landscape to controlling protein assembly and function.
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Affiliation(s)
| | - Robert M. Culik
- Department of Biochemistry and Biophysics, University of Pennsylvania, PA, 19104, USA
| | - Feng Gai
- Department of Chemistry, University of Pennsylvania, PA, 19104, USA
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23
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Cai Z, Zhang JT, Xue F, Hong Z, Punihaole D, Asher SA. 2D Photonic Crystal Protein Hydrogel Coulometer for Sensing Serum Albumin Ligand Binding. Anal Chem 2014; 86:4840-7. [DOI: 10.1021/ac404134t] [Citation(s) in RCA: 79] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Zhongyu Cai
- Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, United States
| | - Jian-Tao Zhang
- Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, United States
| | - Fei Xue
- Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, United States
| | - Zhenmin Hong
- Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, United States
| | - David Punihaole
- Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, United States
| | - Sanford A. Asher
- Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, United States
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