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Xiong Z, Cheng J, Hu Y, Chen S, Qiu Y, Yang A, Wu Z, Li X, Chen H. A composite enzyme derived from papain and chymotrypsin reduces the Allergenicity of Cow's Milk allergen casein by targeting T and B cell epitopes. Food Chem 2024; 459:140315. [PMID: 38986203 DOI: 10.1016/j.foodchem.2024.140315] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2024] [Revised: 06/30/2024] [Accepted: 07/01/2024] [Indexed: 07/12/2024]
Abstract
Casein, the major allergen in cow's milk, presents a significant challenge in providing nutritional support for children with allergies. To address this issue, we investigated a composite enzyme, comprising papain and chymotrypsin, to reduce the allergenicity of casein. Enzymatic hydrolysis induced substantial structural changes in casein, diminishing its affinity for specific IgE and IgG antibodies. Additionally, in a BALB/c mouse model, casein hydrolysate alleviated allergic symptoms, evidenced by lower serum IgE and IgG levels, reduced plasma histamine, and decreased Th2 cytokine release during cell co-culture. Peptidomic analysis revealed a 52.38% and 60% reduction in peptides containing IgE epitopes in casein hydrolyzed by the composite enzyme compared to papain and chymotrypsin, respectively, along with a notable absence of previously reported T cell epitopes. These results demonstrate the potential of enzyme combinations to enhance the efficiency of epitope destruction in allergenic proteins, providing valuable insights into the development of hypoallergenic dairy products.
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Affiliation(s)
- Ziyi Xiong
- State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang, Jiangxi 330047, P. R. China; School of Food Science and Technology, Nanchang University, Nanchang, Jiangxi 330047, P. R. China; Jiangxi Province Key Laboratory of Food Allergy, Nanchang University, Nanchang, Jiangxi 330047, P. R. China
| | - Jianfeng Cheng
- State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang, Jiangxi 330047, P. R. China; School of Food Science and Technology, Nanchang University, Nanchang, Jiangxi 330047, P. R. China; Jiangxi Province Key Laboratory of Food Allergy, Nanchang University, Nanchang, Jiangxi 330047, P. R. China
| | - Yongxin Hu
- State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang, Jiangxi 330047, P. R. China; School of Food Science and Technology, Nanchang University, Nanchang, Jiangxi 330047, P. R. China; Jiangxi Province Key Laboratory of Food Allergy, Nanchang University, Nanchang, Jiangxi 330047, P. R. China
| | - Siyi Chen
- State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang, Jiangxi 330047, P. R. China; School of Food Science and Technology, Nanchang University, Nanchang, Jiangxi 330047, P. R. China; Jiangxi Province Key Laboratory of Food Allergy, Nanchang University, Nanchang, Jiangxi 330047, P. R. China
| | - Yu Qiu
- State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang, Jiangxi 330047, P. R. China; School of Food Science and Technology, Nanchang University, Nanchang, Jiangxi 330047, P. R. China; Jiangxi Province Key Laboratory of Food Allergy, Nanchang University, Nanchang, Jiangxi 330047, P. R. China
| | - Anshu Yang
- State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang, Jiangxi 330047, P. R. China; Sino-German Joint Research Institute, Nanchang University, Nanchang, Jiangxi 330047, P. R. China; Jiangxi Province Key Laboratory of Food Allergy, Nanchang University, Nanchang, Jiangxi 330047, P. R. China
| | - Zhihua Wu
- State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang, Jiangxi 330047, P. R. China; Sino-German Joint Research Institute, Nanchang University, Nanchang, Jiangxi 330047, P. R. China; Jiangxi Province Key Laboratory of Food Allergy, Nanchang University, Nanchang, Jiangxi 330047, P. R. China
| | - Xin Li
- State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang, Jiangxi 330047, P. R. China; School of Food Science and Technology, Nanchang University, Nanchang, Jiangxi 330047, P. R. China; Jiangxi Province Key Laboratory of Food Allergy, Nanchang University, Nanchang, Jiangxi 330047, P. R. China.
| | - Hongbing Chen
- State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang, Jiangxi 330047, P. R. China; Sino-German Joint Research Institute, Nanchang University, Nanchang, Jiangxi 330047, P. R. China; Jiangxi Province Key Laboratory of Food Allergy, Nanchang University, Nanchang, Jiangxi 330047, P. R. China
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2
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Smith DK. Supramolecular gels - a panorama of low-molecular-weight gelators from ancient origins to next-generation technologies. SOFT MATTER 2023; 20:10-70. [PMID: 38073497 DOI: 10.1039/d3sm01301d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2023]
Abstract
Supramolecular gels, self-assembled from low-molecular-weight gelators (LMWGs), have a long history and a bright future. This review provides an overview of these materials, from their use in lubrication and personal care in the ancient world, through to next-generation technologies. In academic terms, colloid scientists in the 19th and early 20th centuries first understood such gels as being physically assembled as a result of weak interactions, combining a solid-like network having a degree of crystalline order with a highly mobile liquid-like phase. During the 20th century, industrial scientists began using these materials in new applications in the polymer, oil and food industries. The advent of supramolecular chemistry in the late 20th century, with its focus on non-covalent interactions and controlled self-assembly, saw the horizons for these materials shifted significantly beyond their historic rheological applications, expanding their potential. The ability to tune the LMWG chemical structure, manipulate hierarchical assembly, develop multi-component systems, and introduce new types of responsive and interactive behaviour, has been transformative. Furthermore, the dynamics of these materials are increasingly understood, creating metastable gels and transiently-fueled systems. New approaches to shaping and patterning gels are providing a unique opportunity for more sophisticated uses. These supramolecular advances are increasingly underpinning and informing next-generation applications - from drug delivery and regenerative medicine to environmental remediation and sustainable energy. In summary, this article presents a panorama over the field of supramolecular gels, emphasising how both academic and industrial scientists are building on the past, and engaging new fundamental insights and innovative concepts to open up exciting horizons for their future use.
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Affiliation(s)
- David K Smith
- Department of Chemistry, University of York, Heslington, York, YO10 5DD, UK.
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3
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Boruah A, Roy A. Advances in hybrid peptide-based self-assembly systems and their applications. Biomater Sci 2022; 10:4694-4723. [PMID: 35899853 DOI: 10.1039/d2bm00775d] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Self-assembly of peptides demonstrates a great potential for designing highly ordered, finely tailored supramolecular arrangements enriched with high specificity, improved efficacy and biological activity. Along with natural peptides, hybrid peptide systems composed of natural and chemically diverse unnatural amino acids have been used in various fields, including drug delivery, wound healing, potent inhibition of diseases, and prevention of biomaterial related diseases to name a few. In this review, we provide a brief outline of various methods that have been utilized for obtaining fascinating structures that create an avenue to reproduce a range of functions resulting from these folds. An overview of different self-assembled structures as well as their applications will also be provided. We believe that this review is very relevant to the current scenario and will cover conformations of hybrid peptides and resulting self-assemblies from the late 20th century through 2022. This review aims to be a comprehensive and reliable account of the hybrid peptide-based self-assembly owing to its enormous influence in understanding and mimicking biological processes.
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Affiliation(s)
- Alpana Boruah
- Applied Organic Chemistry Group, Chemical Sciences and Technology Division, Council of Scientific and Industrial Research-North East Institute of Science and Technology (CSIR-NEIST), Pulibor, Jorhat-785006, Assam, India. .,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002, India
| | - Arup Roy
- Applied Organic Chemistry Group, Chemical Sciences and Technology Division, Council of Scientific and Industrial Research-North East Institute of Science and Technology (CSIR-NEIST), Pulibor, Jorhat-785006, Assam, India. .,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002, India
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Localized Enzyme-Assisted Self-Assembly of low molecular weight hydrogelators. Mechanism, applications and perspectives. Adv Colloid Interface Sci 2022; 304:102660. [PMID: 35462266 DOI: 10.1016/j.cis.2022.102660] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Revised: 02/28/2022] [Accepted: 03/31/2022] [Indexed: 01/31/2023]
Abstract
Nature uses systems of high complexity coordinated by the precise spatial and temporal control of associated processes, working from the molecular to the macroscopic scale. This living organization is mainly ensured by enzymatic actions. Herein, we review the concept of Localized Enzyme-Assisted Self-Assembly (LEASA). It is defined and presented as a straightforward and insightful strategy to achieve high levels of control in artificial systems. Indeed, the use of immobilized enzymes to drive self-assembly events leads not only to the local formation of supramolecular structures but also to tune their kinetics and their morphologies. The possibility to design tailored complex systems taking advantage of self-assembled networks through their inherent and emergent properties offers new perspectives for the design of novel, more adaptable materials. As a result, some applications have already been developed and are gathered in this review. Finally, challenges and perspectives of LEASA are introduced and discussed.
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Coste M, Suárez-Picado E, Ulrich S. Hierarchical self-assembly of aromatic peptide conjugates into supramolecular polymers: it takes two to tango. Chem Sci 2022; 13:909-933. [PMID: 35211257 PMCID: PMC8790784 DOI: 10.1039/d1sc05589e] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2021] [Accepted: 12/10/2021] [Indexed: 12/26/2022] Open
Abstract
Supramolecular polymers are self-assembled materials displaying adaptive and responsive "life-like" behaviour which are often made of aromatic compounds capable of engaging in π-π interactions to form larger assemblies. Major advances have been made recently in controlling their mode of self-assembly, from thermodynamically-controlled isodesmic to kinetically-controlled living polymerization. Dynamic covalent chemistry has been recently implemented to generate dynamic covalent polymers which can be seen as dynamic analogues of biomacromolecules. On the other hand, peptides are readily-available and structurally-rich building blocks that can lead to secondary structures or specific functions. In this context, the past decade has seen intense research activity in studying the behaviour of aromatic-peptide conjugates through supramolecular and/or dynamic covalent chemistries. Herein, we review those impressive key achievements showcasing how aromatic- and peptide-based self-assemblies can be combined using dynamic covalent and/or supramolecular chemistry, and what it brings in terms of the structure, self-assembly pathways, and function of supramolecular and dynamic covalent polymers.
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Affiliation(s)
- Maëva Coste
- IBMM, Institut des Biomolécules Max Mousseron, CNRS, Université de Montpellier, ENSCM Montpellier France
| | - Esteban Suárez-Picado
- IBMM, Institut des Biomolécules Max Mousseron, CNRS, Université de Montpellier, ENSCM Montpellier France
| | - Sébastien Ulrich
- IBMM, Institut des Biomolécules Max Mousseron, CNRS, Université de Montpellier, ENSCM Montpellier France
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6
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Localized Enzyme-Assisted Self-Assembly in the Presence of Hyaluronic Acid for Hybrid Supramolecular Hydrogel Coating. Polymers (Basel) 2021; 13:polym13111793. [PMID: 34072331 PMCID: PMC8198348 DOI: 10.3390/polym13111793] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Accepted: 05/25/2021] [Indexed: 11/30/2022] Open
Abstract
Hydrogel coating is highly suitable in biomaterial design. It provides biocompatibility and avoids protein adsorption leading to inflammation and rejection of implants. Moreover, hydrogels can be loaded with biologically active compounds. In this field, hyaluronic acid has been largely studied as an additional component since this polysaccharide is naturally present in extracellular matrix. Strategies to direct hydrogelation processes exclusively from the surface using a fully biocompatible approach are rare. Herein we have applied the concept of localized enzyme-assisted self-assembly to direct supramolecular hydrogels in the presence of HA. Based on electronic and fluorescent confocal microscopy, rheological measurements and cell culture investigations, this work highlights the following aspects: (i) the possibility to control the thickness of peptide-based hydrogels at the micrometer scale (18–41 µm) through the proportion of HA (2, 5 or 10 mg/mL); (ii) the structure of the self-assembled peptide nanofibrous network is affected by the growing amount of HA which induces the collapse of nanofibers leading to large assembled microstructures underpinning the supramolecular hydrogel matrix; (iii) this changing internal architecture induces a decrease of the elastic modulus from 2 to 0.2 kPa when concentration of HA is increasing; (iv) concomitantly, the presence of HA in supramolecular hydrogel coatings is suitable for cell viability and adhesion of NIH 3T3 fibroblasts.
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Wang J, Li H, Xu B. Biological functions of supramolecular assemblies of small molecules in cellular environment. RSC Chem Biol 2021; 2:289-305. [PMID: 34423303 PMCID: PMC8341129 DOI: 10.1039/d0cb00219d] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2020] [Accepted: 01/05/2021] [Indexed: 12/29/2022] Open
Abstract
Like biomacromolecules, certain small molecules (e.g., aggregators) are able to self-assemble in aqueous phase to form nanoscale aggregates. Though it is well-established that the aggregates may interact with enzymes in vitro, the study of the biological activities of the assemblies of small molecules in cellular environment is only at its beginning. This review summarizes the recent progresses in exploring the biological functions of supramolecular assemblies of small molecules (SASMs). We first discuss the use of SASMs to inhibit pathogenic cells, such as cancer cells and bacteria. The use of SASMs to target different parts of cancer cells, such as pericellular space, cytosol, and subcellular organelles, and to combine with other bioactive entities (e.g., proteins and clinically used drugs), is particularly promising for addressing the challenge of acquired multidrug resistance in cancer therapy. Then, we describe the use of SASMs to sustain physiological functions of normal cells, that is, promoting cells proliferation and differentiation for tissue regeneration. After that, we show the use of SASMs as a basic tool to research cell behaviors, for instance, identifying the specific cells, improving enzyme probes, revealing membrane dynamics, enhancing molecular imaging, and mimicking context-dependent signaling. Finally, we give the outlook of the research of SASMs. We expect that this review, by highlighting the biological functions of SASMs, provides a starting point to explore the chemical biology of SASMs.
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Affiliation(s)
- Jingyu Wang
- School of Biomedical Engineering and Technology, Tianjin Medical UniversityTianjin 300070P. R. China
| | - Hui Li
- School of Biomedical Engineering and Technology, Tianjin Medical UniversityTianjin 300070P. R. China
| | - Bing Xu
- Department of Chemistry, Brandeis UniversityWalthamMassachusetts 02454USA
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Yang D, Kim BJ, He H, Xu B. Enzymatically Forming Cell Compatible Supramolecular Assemblies of Tryptophan-Rich Short Peptides. Pept Sci (Hoboken) 2021; 113:e24173. [PMID: 35445163 PMCID: PMC9017786 DOI: 10.1002/pep2.24173] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2020] [Accepted: 05/04/2020] [Indexed: 10/27/2023]
Abstract
Here we report a new type of tryptophan-rich short peptides, which act as hydrogelators, form supramolecular assemblies via enzymatic dephosphorylation, and exhibit cell compatibility. The facile synthesis of the peptides starts with the production of phosphotyrosine, then uses solid phase peptide synthesis (SPPS) to build the phosphopeptides that contain multiple tryptophan residues. Besides exhibiting excellent solubility, these phosphopeptides, unlike the previously reported cytotoxic phenylalanine-rich phosphopeptides, are largely compatible toward mammalian cells. Our preliminary mechanistic study suggests that the tryptophan-rich peptides, instead of forming pericellular assemblies, largely accumulate in lysosomes. Such lysosomal localization may account for their cell compatibility. Moreover, these tryptophan-rich peptides are able to transiently reduce the cytotoxicity of phenylalanine-rich peptide assemblies. This rather unexpected result implies that tryptophan may act as a useful aromatic building block for developing cell compatible supramolecular assemblies for soft materials and find applications for protecting cells from cytotoxic peptide assemblies.
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Affiliation(s)
- Dongsik Yang
- Department of Chemistry, Brandeis University, 415 South Street, Waltham, MA 02454, USA
| | - Beom Jin Kim
- Department of Chemistry, Brandeis University, 415 South Street, Waltham, MA 02454, USA
| | - Hongjian He
- Department of Chemistry, Brandeis University, 415 South Street, Waltham, MA 02454, USA
| | - Bing Xu
- Department of Chemistry, Brandeis University, 415 South Street, Waltham, MA 02454, USA
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9
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Abstract
Enzymatic reactions and noncovalent (i.e., supramolecular) interactions are two fundamental nongenetic attributes of life. Enzymatic noncovalent synthesis (ENS) refers to a process where enzymatic reactions control intermolecular noncovalent interactions for spatial organization of higher-order molecular assemblies that exhibit emergent properties and functions. Like enzymatic covalent synthesis (ECS), in which an enzyme catalyzes the formation of covalent bonds to generate individual molecules, ENS is a unifying theme for understanding the functions, morphologies, and locations of molecular ensembles in cellular environments. This review intends to provide a summary of the works of ENS within the past decade and emphasize ENS for functions. After comparing ECS and ENS, we describe a few representative examples where nature uses ENS, as a rule of life, to create the ensembles of biomacromolecules for emergent properties/functions in a myriad of cellular processes. Then, we focus on ENS of man-made (synthetic) molecules in cell-free conditions, classified by the types of enzymes. After that, we introduce the exploration of ENS of man-made molecules in the context of cells by discussing intercellular, peri/intracellular, and subcellular ENS for cell morphogenesis, molecular imaging, cancer therapy, and other applications. Finally, we provide a perspective on the promises of ENS for developing molecular assemblies/processes for functions. This review aims to be an updated introduction for researchers who are interested in exploring noncovalent synthesis for developing molecular science and technologies to address societal needs.
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Affiliation(s)
- Hongjian He
- Department of Chemistry, Brandeis University, 415 South Street, Waltham, Massachusetts 02454, United States
| | - Weiyi Tan
- Department of Chemistry, Brandeis University, 415 South Street, Waltham, Massachusetts 02454, United States
| | - Jiaqi Guo
- Department of Chemistry, Brandeis University, 415 South Street, Waltham, Massachusetts 02454, United States
| | - Meihui Yi
- Department of Chemistry, Brandeis University, 415 South Street, Waltham, Massachusetts 02454, United States
| | - Adrianna N Shy
- Department of Chemistry, Brandeis University, 415 South Street, Waltham, Massachusetts 02454, United States
| | - Bing Xu
- Department of Chemistry, Brandeis University, 415 South Street, Waltham, Massachusetts 02454, United States
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Jain R, Pal VK, Roy S. Triggering Supramolecular Hydrogelation Using a Protein–Peptide Coassembly Approach. Biomacromolecules 2020; 21:4180-4193. [DOI: 10.1021/acs.biomac.0c00984] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Rashmi Jain
- Institute of Nano Science and Technology, Habitat Centre, Phase 10, Sector 64, Mohali, Punjab 160062, India
| | - Vijay Kumar Pal
- Institute of Nano Science and Technology, Habitat Centre, Phase 10, Sector 64, Mohali, Punjab 160062, India
| | - Sangita Roy
- Institute of Nano Science and Technology, Habitat Centre, Phase 10, Sector 64, Mohali, Punjab 160062, India
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Shy AN, Li J, Shi J, Zhou N, Xu B. Enzyme-instructed self-assembly of the stereoisomers of pentapeptides to form biocompatible supramolecular hydrogels. J Drug Target 2020; 28:760-765. [PMID: 32668995 PMCID: PMC7729926 DOI: 10.1080/1061186x.2020.1797048] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Revised: 06/19/2020] [Accepted: 07/08/2020] [Indexed: 10/23/2022]
Abstract
This article reports enzyme-instructed self-assembly (EISA) of stereoisomers of pentapeptides as a simple approach for generating biocompatible supramolecular hydrogels as potential soft bionanomaterials. Peptide-based supramolecular hydrogels are emerging as a new type of biomaterials. The use of tyrosine phosphate offers a trigger for enzymatic hydrogelation, and the incorporation of D-amino acids can increase the proteolytic stability of peptides. This work compared four phosphorpeptides that are stereoisomers in terms of rate of dephosphorylation, proteolytic stability, and cell compatibility. The results show that the naphthyl (Nap)-capped pentapeptides, containing the amino acid sequence of Phe-Phe-Gly-Glu-pTyr, are able to undergo EISA to form the hydrogels consisting the nanofibres of the dephosphorylated pentapeptides. The naphthyl-capped D-phosphopentpeptides, contrasting to a naphthyl-capped D-phosphotripeptide (Nap-D-Phe-D-Phe-D-pTyr), are largely cell compatible. This result, suggesting that the sequence of phophopeptides also dedicates the cell compatibility of the peptide assemblies resulted from EISA, provides useful insights for developing supramolecular hydrogels as potential biomaterials with tailored properties.
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Affiliation(s)
- Adrianna N. Shy
- Department of Chemistry, Brandeis University, Waltham, MA USA
| | - Jie Li
- Department of Chemistry, Brandeis University, Waltham, MA USA
| | - Junfeng Shi
- Department of Chemistry, Brandeis University, Waltham, MA USA
| | - Ning Zhou
- Department of Chemistry, Brandeis University, Waltham, MA USA
| | - Bing Xu
- Department of Chemistry, Brandeis University, Waltham, MA USA
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13
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Criado-Gonzalez M, Fores JR, Carvalho A, Blanck C, Schmutz M, Kocgozlu L, Schaaf P, Jierry L, Boulmedais F. Phase Separation in Supramolecular Hydrogels Based on Peptide Self-Assembly from Enzyme-Coated Nanoparticles. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:10838-10845. [PMID: 31334660 DOI: 10.1021/acs.langmuir.9b01420] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Spatial localization of biocatalysts, such as enzymes, has recently proven to be an effective process to direct supramolecular self-assemblies in a spatiotemporal way. In this work, silica nanoparticles (NPs) functionalized covalently by alkaline phosphatase (NPs@AP) induce the localized growth of self-assembled peptide nanofibers from NPs by dephosphorylation of Fmoc-FFpY peptides (Fmoc: fluorenylmethyloxycarbonyl; F: phenylalanine; Y: tyrosine; p: phosphate group). The fibrillary nanoarchitecture around NPs@AP underpins a homogeneous hydrogel, which unexpectedly undergoes a macroscopic shape change over time. This macroscopic change is due to a phase separation leading to a dense phase (in NPs and nanofibers) in the center of the vial and surrounded by a dilute one, which still contains NPs and peptide self-assemblies. We thus hypothesize that the phase separation is not a syneresis process. Such a change is only observed when the enzymes are localized on the NPs. The dense phase contracts with time until reaching a constant volume after several days. For a given phosphorylated peptide concentration, the dense phase contracts faster when the NPs@AP concentration is increased. For a given NPs@AP concentration, it condenses faster when the peptide concentration increases. We hypothesize that the appearance of a dense phase is not only due to attractive interactions between NPs@AP but also to the strong interactions of self-assembled peptide nanofibers with the enzymes, covalently fixed on the NPs.
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Affiliation(s)
- Miryam Criado-Gonzalez
- Université de Strasbourg, CNRS, Institut Charles Sadron UPR 22 , 67034 Strasbourg , France
- Institut National de la Santé et de la Recherche Médicale, UMR-S 1121, "Biomatériaux et Bioingénierie" , 67087 Strasbourg , France
- Université de Strasbourg, Faculté de Chirurgie Dentaire, Fédération de Médecine Translationnelle de Strasbourg and Fédération des Matériaux et Nanoscience d'Alsace , 67000 Strasbourg , France
| | - Jennifer Rodon Fores
- Université de Strasbourg, CNRS, Institut Charles Sadron UPR 22 , 67034 Strasbourg , France
| | - Alain Carvalho
- Université de Strasbourg, CNRS, Institut Charles Sadron UPR 22 , 67034 Strasbourg , France
| | - Christian Blanck
- Université de Strasbourg, CNRS, Institut Charles Sadron UPR 22 , 67034 Strasbourg , France
| | - Marc Schmutz
- Université de Strasbourg, CNRS, Institut Charles Sadron UPR 22 , 67034 Strasbourg , France
| | - Leyla Kocgozlu
- Institut National de la Santé et de la Recherche Médicale, UMR-S 1121, "Biomatériaux et Bioingénierie" , 67087 Strasbourg , France
- Université de Strasbourg, Faculté de Chirurgie Dentaire, Fédération de Médecine Translationnelle de Strasbourg and Fédération des Matériaux et Nanoscience d'Alsace , 67000 Strasbourg , France
| | - Pierre Schaaf
- Université de Strasbourg, CNRS, Institut Charles Sadron UPR 22 , 67034 Strasbourg , France
- Institut National de la Santé et de la Recherche Médicale, UMR-S 1121, "Biomatériaux et Bioingénierie" , 67087 Strasbourg , France
- Université de Strasbourg, Faculté de Chirurgie Dentaire, Fédération de Médecine Translationnelle de Strasbourg and Fédération des Matériaux et Nanoscience d'Alsace , 67000 Strasbourg , France
| | - Loïc Jierry
- Université de Strasbourg, CNRS, Institut Charles Sadron UPR 22 , 67034 Strasbourg , France
| | - Fouzia Boulmedais
- Université de Strasbourg, CNRS, Institut Charles Sadron UPR 22 , 67034 Strasbourg , France
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14
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Ma D, Chen Z, Yi L, Xi Z. Development of improved dual-diazonium reagents for faster crosslinking of tobacco mosaic virus to form hydrogels. RSC Adv 2019; 9:29070-29077. [PMID: 35528434 PMCID: PMC9071817 DOI: 10.1039/c9ra05630k] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2019] [Accepted: 09/09/2019] [Indexed: 12/11/2022] Open
Abstract
New bench-stable reagents with two diazonium sites were designed and synthesized for protein crosslinking. Because of the faster diazonium-tyrosine coupling reaction, hydrogels from the crosslinking of tobacco mosaic virus and the reagent DDA-3 could be prepared within 1 min at room temperature. Furthermore, hydrogels with the introduction of disulfide bonds viaDDA-4 could be chemically degraded by dithiothreitol. Our results provided a facile approach for the direct construction of virus-based hydrogels. Improved dual-diazonium reagents were developed for more efficient crosslinking of tobacco mosaic virus to form hydrogels.![]()
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Affiliation(s)
- Dejun Ma
- State Key Laboratory of Elemento-Organic Chemistry
- Department of Chemical Biology
- National Pesticide Engineering Research Center (Tianjin)
- Nankai University
- Tianjin
| | - Zhuoyue Chen
- State Key Laboratory of Organic-Inorganic Composites
- Beijing University of Chemical Technology
- Beijing 100029
- China
| | - Long Yi
- State Key Laboratory of Organic-Inorganic Composites
- Beijing University of Chemical Technology
- Beijing 100029
- China
| | - Zhen Xi
- State Key Laboratory of Elemento-Organic Chemistry
- Department of Chemical Biology
- National Pesticide Engineering Research Center (Tianjin)
- Nankai University
- Tianjin
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