1
|
Hainline KM, Haddad HF, Gilpin A, Curvino EJ, Varghese S, Collier JH. Active immunotherapy for C5a-mediated inflammation using adjuvant-free self-assembled peptide nanofibers. Acta Biomater 2024; 179:83-94. [PMID: 38447809 PMCID: PMC11045302 DOI: 10.1016/j.actbio.2024.02.042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2023] [Revised: 02/01/2024] [Accepted: 02/27/2024] [Indexed: 03/08/2024]
Abstract
The terminal protein in the complement cascade C5a is a potent inflammatory molecule and chemoattractant that is involved in the pathology of multiple inflammatory diseases including sepsis and arthritis, making it a promising protein to target with immunotherapies. Active immunotherapies, in which patients are immunized against problematic self-molecules and generate therapeutic antibodies as a result, have received increasing interest as an alternative to traditional monoclonal antibody treatments. In previous work, we have designed supramolecular self-assembling peptide nanofibers as active immunotherapies with defined combinations of B- and T-cell epitopes. Herein, the self-assembling peptide Q11 platform was employed to generate a C5a-targeting active immunotherapy. Two of three predicted B-cell epitope peptides from C5a were found to be immunogenic when displayed within Q11 nanofibers, and the nanofibers were capable of reducing C5a serum concentrations following immunization. Contrastingly, C5a's precursor protein C5 maintained its original concentration, promising to minimize side effects heretofore associated with C5-targeted therapies. Immunization protected mice against an LPS-challenge model of sepsis, and it reduced clinical severity in a model of collagen-antibody induced arthritis. Together, this work indicates the potential for targeting terminal complement proteins with active immunotherapies by leveraging the immunogenicity of self-assembled peptide nanomaterials. STATEMENT OF SIGNIFICANCE: Chronic inflammatory diseases such as rheumatoid arthritis, psoriasis, and inflammatory bowel disease are currently treated primarily with monoclonal antibodies against key inflammatory mediators. While helpful for many patients, they have high non-response rates, are costly, and commonly fail as anti-drug antibodies are raised by the patient. The approach we describe here explores a fundamentally different treatment paradigm: raising therapeutic antibody responses with an active immunotherapy. We employ innovative supramolecular peptide nanomaterials to elicit neutralizing antibody responses against complement component C5a and demonstrate therapeutic efficacy in preclinical mouse models of sepsis and rheumatoid arthritis. The strategy reported may represent a potential alternative to monoclonal antibody therapies.
Collapse
Affiliation(s)
- Kelly M Hainline
- Duke University, Department of Biomedical Engineering, United States
| | | | - Anna Gilpin
- Duke University, Department of Biomedical Engineering, United States
| | | | - Shyni Varghese
- Duke University, Department of Biomedical Engineering, United States
| | - Joel H Collier
- Duke University, Department of Biomedical Engineering, United States.
| |
Collapse
|
2
|
Qiu R, Chen F, Álvarez Z, Clemons TD, Biswas S, Karver MR, Takata N, Sai H, Peng H, Weigand S, Palmer LC, Stupp SI. Supramolecular Nanofibers Block SARS-CoV-2 Entry into Human Host Cells. ACS APPLIED MATERIALS & INTERFACES 2023; 15:26340-26348. [PMID: 37235485 DOI: 10.1021/acsami.3c02447] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
The severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection relies on its spike protein binding to angiotensin-converting enzyme 2 (ACE2) on host cells to initiate cellular entry. Blocking the interactions between the spike protein and ACE2 offers promising therapeutic opportunities to prevent infection. We report here on peptide amphiphile supramolecular nanofibers that display a sequence from ACE2 in order to promote interactions with the SARS-CoV-2 spike receptor binding domain. We demonstrate that displaying this sequence on the surface of supramolecular assemblies preserves its α-helical conformation and blocks the entry of a pseudovirus and its two variants into human host cells. We also found that the chemical stability of the bioactive structures was enhanced in the supramolecular environment relative to the unassembled peptide molecules. These findings reveal unique advantages of supramolecular peptide therapies to prevent viral infections and more broadly for other targets as well.
Collapse
Affiliation(s)
- Ruomeng Qiu
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Feng Chen
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, Illinois 60611, United States
| | - Zaida Álvarez
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, Illinois 60611, United States
- Department of Medicine, Northwestern University, 676 N. St. Clair Street, Chicago, Illinois 60611, United States
| | - Tristan D Clemons
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, Illinois 60611, United States
| | - Suvendu Biswas
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, Illinois 60611, United States
| | - Mark R Karver
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, Illinois 60611, United States
| | - Nozomu Takata
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, Illinois 60611, United States
| | - Hiroaki Sai
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, Illinois 60611, United States
- Department of Materials Science and Engineering, Northwestern University, 2220 Campus Drive, Evanston, Illinois 60208, United States
| | - Han Peng
- Department of Dermatology, Northwestern University, 303 E. Superior Street, Chicago, Illinois 60611, United States
| | - Steven Weigand
- DuPont-Northwestern-Dow Collaborative Access Team (DND-CAT) Synchrotron Research Center, Advanced Photon Source (APS)/Argonne National Laboratory 432-A004, Northwestern University, 9700 South Cass Avenue, Argonne, Illinois 60439, United States
| | - Liam C Palmer
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, Illinois 60611, United States
| | - Samuel I Stupp
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, Illinois 60611, United States
- Department of Materials Science and Engineering, Northwestern University, 2220 Campus Drive, Evanston, Illinois 60208, United States
- Department of Biomedical Engineering, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
- Department of Medicine, Northwestern University, 676 N. St. Clair Street, Chicago, Illinois 60611, United States
| |
Collapse
|
3
|
Hamley IW. Self-Assembly, Bioactivity, and Nanomaterials Applications of Peptide Conjugates with Bulky Aromatic Terminal Groups. ACS APPLIED BIO MATERIALS 2023; 6:384-409. [PMID: 36735801 PMCID: PMC9945136 DOI: 10.1021/acsabm.2c01041] [Citation(s) in RCA: 17] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
The self-assembly and structural and functional properties of peptide conjugates containing bulky terminal aromatic substituents are reviewed with a particular focus on bioactivity. Terminal moieties include Fmoc [fluorenylmethyloxycarbonyl], naphthalene, pyrene, naproxen, diimides of naphthalene or pyrene, and others. These provide a driving force for self-assembly due to π-stacking and hydrophobic interactions, in addition to the hydrogen bonding, electrostatic, and other forces between short peptides. The balance of these interactions leads to a propensity to self-assembly, even for conjugates to single amino acids. The hybrid molecules often form hydrogels built from a network of β-sheet fibrils. The properties of these as biomaterials to support cell culture, or in the development of molecules that can assemble in cells (in response to cellular enzymes, or otherwise) with a range of fascinating bioactivities such as anticancer or antimicrobial activity, are highlighted. In addition, applications of hydrogels as slow-release drug delivery systems and in catalysis and other applications are discussed. The aromatic nature of the substituents also provides a diversity of interesting optoelectronic properties that have been demonstrated in the literature, and an overview of this is also provided. Also discussed are coassembly and enzyme-instructed self-assembly which enable precise tuning and (stimulus-responsive) functionalization of peptide nanostructures.
Collapse
|
4
|
Kelly SH, Votaw NL, Cossette BJ, Wu Y, Shetty S, Shores LS, Issah LA, Collier JH. A sublingual nanofiber vaccine to prevent urinary tract infections. SCIENCE ADVANCES 2022; 8:eabq4120. [PMID: 36417519 PMCID: PMC9683704 DOI: 10.1126/sciadv.abq4120] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Accepted: 09/21/2022] [Indexed: 06/16/2023]
Abstract
Urinary tract infections (UTIs) are a major public health problem affecting millions of individuals each year. Recurrent UTIs are managed by long-term antibiotic use, making the alarming rise of antibiotic resistance a substantial threat to future UTI treatment. Extended antibiotic regimens may also have adverse effects on the microbiome. Here, we report the use of a supramolecular vaccine to provide long-term protection against uropathogenic Escherichia coli, which cause 80% of uncomplicated UTIs. We designed mucus-penetrating peptide-polymer nanofibers to enable sublingual (under the tongue) vaccine delivery and elicit antibody responses systemically and in the urogenital tract. In a mouse model of UTI, we demonstrate equivalent efficacy to high-dose oral antibiotics but with significantly less perturbation of the gut microbiome. We also formulate our vaccine as a rapid-dissolving sublingual tablet that raises response in mice and rabbits. Our approach represents a promising alternative to antibiotics for the treatment and prevention of UTIs.
Collapse
|
5
|
Gray VP, Amelung CD, Duti IJ, Laudermilch EG, Letteri RA, Lampe KJ. Biomaterials via peptide assembly: Design, characterization, and application in tissue engineering. Acta Biomater 2022; 140:43-75. [PMID: 34710626 PMCID: PMC8829437 DOI: 10.1016/j.actbio.2021.10.030] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Revised: 09/23/2021] [Accepted: 10/20/2021] [Indexed: 12/16/2022]
Abstract
A core challenge in biomaterials, with both fundamental significance and technological relevance, concerns the rational design of bioactive microenvironments. Designed properly, peptides can undergo supramolecular assembly into dynamic, physical hydrogels that mimic the mechanical, topological, and biochemical features of native tissue microenvironments. The relatively facile, inexpensive, and automatable preparation of peptides, coupled with low batch-to-batch variability, motivates the expanded use of assembling peptide hydrogels for biomedical applications. Integral to realizing dynamic peptide assemblies as functional biomaterials for tissue engineering is an understanding of the molecular and macroscopic features that govern assembly, morphology, and biological interactions. In this review, we first discuss the design of assembling peptides, including primary structure (sequence), secondary structure (e.g., α-helix and β-sheets), and molecular interactions that facilitate assembly into multiscale materials with desired properties. Next, we describe characterization tools for elucidating molecular structure and interactions, morphology, bulk properties, and biological functionality. Understanding of these characterization methods enables researchers to access a variety of approaches in this ever-expanding field. Finally, we discuss the biological properties and applications of peptide-based biomaterials for engineering several important tissues. By connecting molecular features and mechanisms of assembling peptides to the material and biological properties, we aim to guide the design and characterization of peptide-based biomaterials for tissue engineering and regenerative medicine. STATEMENT OF SIGNIFICANCE: Engineering peptide-based biomaterials that mimic the topological and mechanical properties of natural extracellular matrices provide excellent opportunities to direct cell behavior for regenerative medicine and tissue engineering. Here we review the molecular-scale features of assembling peptides that result in biomaterials that exhibit a variety of relevant extracellular matrix-mimetic properties and promote beneficial cell-biomaterial interactions. Aiming to inspire and guide researchers approaching this challenge from both the peptide biomaterial design and tissue engineering perspectives, we also present characterization tools for understanding the connection between peptide structure and properties and highlight the use of peptide-based biomaterials in neural, orthopedic, cardiac, muscular, and immune engineering applications.
Collapse
Affiliation(s)
- Vincent P Gray
- Department of Chemical Engineering, University of Virginia, Charlottesville, VA, 22903, United States
| | - Connor D Amelung
- Department of Biomedical Engineering, University of Virginia, Charlottesville, VA, 22903, United States
| | - Israt Jahan Duti
- Department of Chemical Engineering, University of Virginia, Charlottesville, VA, 22903, United States
| | - Emma G Laudermilch
- Department of Chemical Engineering, University of Virginia, Charlottesville, VA, 22903, United States
| | - Rachel A Letteri
- Department of Chemical Engineering, University of Virginia, Charlottesville, VA, 22903, United States.
| | - Kyle J Lampe
- Department of Chemical Engineering, University of Virginia, Charlottesville, VA, 22903, United States; Department of Biomedical Engineering, University of Virginia, Charlottesville, VA, 22903, United States.
| |
Collapse
|
6
|
Abdelghani M, Shao J, Le DHT, Wu H, van Hest JCM. Self-Assembly or Coassembly of Multiresponsive Histidine-Containing Elastin-Like Polypeptide Block Copolymers. Macromol Biosci 2021; 21:e2100081. [PMID: 33942499 DOI: 10.1002/mabi.202100081] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Revised: 03/25/2021] [Indexed: 11/05/2022]
Abstract
In this study a histidine containing elastin-like polypeptide (ELP) diblock copolymer is described with multiresponsive assembly behavior. Self-assembly into micelles is examined by two methods. First, the self-assembly is triggered by the addition of divalent metal ions, with Zn2+ being the most suitable one. Increasing the Zn2+ concentration stabilizes the nanoparticles over a large temperature window (4-45 °C). This diblock exhibits furthermore pH-responsiveness, and particles disassemble under mildly acidic conditions. Second, the coassembly of this ELP with a diblock ELP is examined, which is not responsive to pH and metal ions. Coassembly is triggered by heating the ELPs quickly above the transition temperature of the less hydrophobic block, which results in stable nanoparticles without the need to add metal ions. This novel ELP system offers a versatile modular nanocarrier platform that can respond to different stimuli and can be tuned effectively.
Collapse
Affiliation(s)
- Mona Abdelghani
- Bio-Organic Chemistry, Department of Biomedical Engineering, Institute for Complex Molecular Systems, Eindhoven University of Technology, Helix (STO 3.41), P. O. Box 513, Eindhoven, 5600 MB, The Netherlands
| | - Jingxin Shao
- Bio-Organic Chemistry, Department of Biomedical Engineering, Institute for Complex Molecular Systems, Eindhoven University of Technology, Helix (STO 3.41), P. O. Box 513, Eindhoven, 5600 MB, The Netherlands
| | - Duc H T Le
- Bio-Organic Chemistry, Department of Biomedical Engineering, Institute for Complex Molecular Systems, Eindhoven University of Technology, Helix (STO 3.41), P. O. Box 513, Eindhoven, 5600 MB, The Netherlands
| | - Hanglong Wu
- Bio-Organic Chemistry, Department of Biomedical Engineering, Institute for Complex Molecular Systems, Eindhoven University of Technology, Helix (STO 3.41), P. O. Box 513, Eindhoven, 5600 MB, The Netherlands
| | - Jan C M van Hest
- Bio-Organic Chemistry, Department of Biomedical Engineering, Institute for Complex Molecular Systems, Eindhoven University of Technology, Helix (STO 3.41), P. O. Box 513, Eindhoven, 5600 MB, The Netherlands
| |
Collapse
|
7
|
Votaw NL, Collier L, Curvino EJ, Wu Y, Fries CN, Ojeda MT, Collier JH. Randomized peptide assemblies for enhancing immune responses to nanomaterials. Biomaterials 2021; 273:120825. [PMID: 33901731 DOI: 10.1016/j.biomaterials.2021.120825] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Revised: 03/26/2021] [Accepted: 04/10/2021] [Indexed: 12/16/2022]
Abstract
Biomaterials capable of inducing immune responses with minimal associated inflammation are of interest in applications ranging from tissue repair to vaccines. Here we report the design of self-assembling randomized polypeptide nanomaterials inspired by glatiramoids, an immunomodulatory class of linear random copolymers. We hypothesized that peptide self-assemblies bearing similar randomized polypeptides would similarly raise responses skewed toward Type 2 immunity and TH2 T-cell responses, additionally strengthening responses to co-assembled peptide epitopes in the absence of adjuvant. We developed a method for synthesizing self-assembling peptides terminated with libraries of randomized polypeptides (termed KEYA) with good batch-to-batch reproducibility. These peptides formed regular nanofibers and raised strong antibody responses without adjuvants. KEYA modifications dramatically improved uptake of peptide nanofibers in vitro by antigen presenting cells, and served as strong B-cell and T-cell epitopes in vivo, enhancing immune responses against epitopes relevant to influenza and chronic inflammation while inducing a KEYA-specific Type 2/TH2/IL-4 phenotype. KEYA modifications also increased IL-4 production by T cells, extended the residence time of nanofibers, induced no measurable swelling in footpad injections, and decreased overall T cell expansion compared to unmodified nanofibers, further suggesting a TH2 T-cell response with minimal inflammation. Collectively, this work introduces a biomaterial capable of raising strong Type 2/TH2/IL-4 immune responses, with potential applications ranging from vaccination to tissue repair.
Collapse
Affiliation(s)
- Nicole L Votaw
- Department of Biomedical Engineering, Duke University, Durham, NC, 27708, United States
| | - Lauren Collier
- Department of Biomedical Engineering, Duke University, Durham, NC, 27708, United States
| | - Elizabeth J Curvino
- Department of Biomedical Engineering, Duke University, Durham, NC, 27708, United States
| | - Yaoying Wu
- Department of Biomedical Engineering, Duke University, Durham, NC, 27708, United States
| | - Chelsea N Fries
- Department of Biomedical Engineering, Duke University, Durham, NC, 27708, United States
| | - Madison T Ojeda
- Department of Biomedical Engineering, Duke University, Durham, NC, 27708, United States
| | - Joel H Collier
- Department of Biomedical Engineering, Duke University, Durham, NC, 27708, United States.
| |
Collapse
|
8
|
Modular complement assemblies for mitigating inflammatory conditions. Proc Natl Acad Sci U S A 2021; 118:2018627118. [PMID: 33876753 DOI: 10.1073/pnas.2018627118] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Complement protein C3dg, a key linkage between innate and adaptive immunity, is capable of stimulating both humoral and cell-mediated immune responses, leading to considerable interest in its use as a molecular adjuvant. However, the potential of C3dg as an adjuvant is limited without ways of controllably assembling multiple copies of it into vaccine platforms. Here, we report a strategy to assemble C3dg into supramolecular nanofibers with excellent compositional control, using β-tail fusion tags. These assemblies were investigated as therapeutic active immunotherapies, which may offer advantages over existing biologics, particularly toward chronic inflammatory diseases. Supramolecular assemblies based on the Q11 peptide system containing β-tail-tagged C3dg, B cell epitopes from TNF, and the universal T cell epitope PADRE raised strong antibody responses against both TNF and C3dg, and prophylactic immunization with these materials significantly improved protection in a lethal TNF-mediated inflammation model. Additionally, in a murine model of psoriasis induced by imiquimod, the C3dg-adjuvanted nanofiber vaccine performed as well as anti-TNF monoclonal antibodies. Nanofibers containing only β-tail-C3dg and lacking the TNF B cell epitope also showed improvements in both models, suggesting that supramolecular C3dg, by itself, played an important therapeutic role. We observed that immunization with β-tail-C3dg caused the expansion of an autoreactive C3dg-specific T cell population, which may act to dampen the immune response, preventing excessive inflammation. These findings indicate that molecular assemblies displaying C3dg warrant further development as active immunotherapies.
Collapse
|
9
|
Kelly SH, Cossette BJ, Varadhan AK, Wu Y, Collier JH. Titrating Polyarginine into Nanofibers Enhances Cyclic-Dinucleotide Adjuvanticity in Vitro and after Sublingual Immunization. ACS Biomater Sci Eng 2021; 7:1876-1888. [DOI: 10.1021/acsbiomaterials.0c01429] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Sean H. Kelly
- Biomedical Engineering Department, Duke University, Durham, North Carolina 27708, United States
| | - Benjamin J. Cossette
- Biomedical Engineering Department, Duke University, Durham, North Carolina 27708, United States
| | - Ajay K. Varadhan
- Biomedical Engineering Department, Duke University, Durham, North Carolina 27708, United States
| | - Yaoying Wu
- Biomedical Engineering Department, Duke University, Durham, North Carolina 27708, United States
| | - Joel H. Collier
- Biomedical Engineering Department, Duke University, Durham, North Carolina 27708, United States
| |
Collapse
|
10
|
The Versatile Manipulations of Self-Assembled Proteins in Vaccine Design. Int J Mol Sci 2021; 22:ijms22041934. [PMID: 33669238 PMCID: PMC7919822 DOI: 10.3390/ijms22041934] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2021] [Revised: 02/06/2021] [Accepted: 02/11/2021] [Indexed: 12/16/2022] Open
Abstract
Protein assemblies provide unique structural features which make them useful as carrier molecules in biomedical and chemical science. Protein assemblies can accommodate a variety of organic, inorganic and biological molecules such as small proteins and peptides and have been used in development of subunit vaccines via display parts of viral pathogens or antigens. Such subunit vaccines are much safer than traditional vaccines based on inactivated pathogens which are more likely to produce side-effects. Therefore, to tackle a pandemic and rapidly produce safer and more effective subunit vaccines based on protein assemblies, it is necessary to understand the basic structural features which drive protein self-assembly and functionalization of portions of pathogens. This review highlights recent developments and future perspectives in production of non-viral protein assemblies with essential structural features of subunit vaccines.
Collapse
|
11
|
Design of RGDS Peptide-Immobilized Self-Assembling β-Strand Peptide from Barnacle Protein. Int J Mol Sci 2021; 22:ijms22031240. [PMID: 33513895 PMCID: PMC7866236 DOI: 10.3390/ijms22031240] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Revised: 01/22/2021] [Accepted: 01/25/2021] [Indexed: 11/17/2022] Open
Abstract
We designed three types of RGD-containing barnacle adhesive proteins using self-assembling peptides. In the present study, three types of RGD-containing peptides were synthesized by solid-phase peptide synthesis, and the secondary structures of these peptides were analyzed by CD and FT-IR spectroscopy. The mechanical properties of peptide hydrogels were characterized by a rheometer. We discuss the correlation between the peptide conformation, and cell attachment and cell spreading activity from the viewpoint of developing effective tissue engineering scaffolds. We created a peptide-coated cell culture substrate by coating peptides on a polystyrene plate. They significantly facilitated cell adhesion and spreading compared to a non-coated substrate. When the RGDS sequence was modified at N- or C-terminal of R-Y, it was found that the self-assembling ability was dependent on the strongly affects hydrogel formation and cell adhesion caused by its secondary structure.
Collapse
|
12
|
Lopera A, Aguilar JA, Belda R, Verdejo B, Steed JW, García-España E. Hybrid GMP-polyamine hydrogels as new biocompatible materials for drug encapsulation. SOFT MATTER 2020; 16:6514-6522. [PMID: 32597453 DOI: 10.1039/d0sm00704h] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Here we present the preparation and characterization of new biocompatible materials for drug encapsulation. These new gels are based on positively charged [1+1] 1H-pyrazole-based azamacrocycles which minimise the electrostatic repulsions between the negatively charged GMP molecules. Rheological measurements confirm the electroneutral hydrogel structure as the most stable for all the GMP-polyamine systems. Nuclear magnetic resonance (NMR) was employed to investigate the kinetics of the hydrogel formation and cryo-scanning electron microscopy (cryo-SEM) was used to obtain information about the hydrogel morphology, which exhibited a non-homogeneous structure with a high degree of cross-linking. It is possible to introduce isoniazid, which is the most employed antibiotic for tuberculosis treatment, into the hydrogels without disrupting the hydrogel structure at appropriate concentrations for oral administration.
Collapse
Affiliation(s)
- Alberto Lopera
- Departamento de Química Inorgánica, Instituto de Ciencia Molecular, Universidad de Valencia, Calle Catedrático José Beltrán 2, 46980 Paterna, Valencia, Spain.
| | - Juan A Aguilar
- Department of Chemistry, Durham University, South Road, DH1 3LE Durham, UK.
| | - Raquel Belda
- Department of Chemistry, Durham University, South Road, DH1 3LE Durham, UK.
| | - Begoña Verdejo
- Departamento de Química Inorgánica, Instituto de Ciencia Molecular, Universidad de Valencia, Calle Catedrático José Beltrán 2, 46980 Paterna, Valencia, Spain.
| | - Jonathan W Steed
- Department of Chemistry, Durham University, South Road, DH1 3LE Durham, UK.
| | - Enrique García-España
- Departamento de Química Inorgánica, Instituto de Ciencia Molecular, Universidad de Valencia, Calle Catedrático José Beltrán 2, 46980 Paterna, Valencia, Spain.
| |
Collapse
|
13
|
Kelly SH, Wu Y, Varadhan AK, Curvino EJ, Chong AS, Collier JH. Enabling sublingual peptide immunization with molecular self-assemblies. Biomaterials 2020; 241:119903. [PMID: 32143059 PMCID: PMC7171596 DOI: 10.1016/j.biomaterials.2020.119903] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2020] [Accepted: 02/16/2020] [Indexed: 12/13/2022]
Abstract
Short peptides are poorly immunogenic when delivered sublingually - under the tongue. Nanomaterial delivery of peptides could be utilized to improve immunogenicity towards designed sublingual vaccines, but nanomaterials have not been widely successful in sublingual vaccines owing to the challenges of transport through the sublingual mucosa. Here, we report that the sublingual immunogenicity of peptides is negligible, even in the presence of sublingual adjuvants or when PEGylated, but can be dramatically enhanced by assembly into supramolecular polymer-peptide nanofibers bearing low-molecular weight PEG, optimally between 2000 and 3000 Da. Neither PEGylation nor a sublingual adjuvant were capable of rendering peptides immunogenic without assembly into nanofibers. We found that PEG decreased nanofiber interactions with mucin and promoted longer residence time at the sublingual immunization site. Parallel investigations with shortened nanofibers indicated that the size of the assemblies had a surprisingly negligible influence over sublingual immunogenicity. In mice, optimized formulations were capable of raising strong and highly durable systemic antibody responses, antibodies in the upper respiratory and reproductive tracts, and systemic antigen-specific T-cell responses. These nanofiber-based sublingual vaccines were effective with both protein and nucleotide adjuvants and raised responses against both a model peptide epitope and a peptide epitope from M. tuberculosis. Further, PASylation (modification of nanofibers with peptide sequences rich in Pro, Ala, and Ser) could be substituted for PEGylation to also achieve sublingual immunogenicity. These findings indicated that surface properties supersede nanomaterial size in modulating sublingual nanomaterial immunogenicity, having important implications for the design of synthetic sublingual vaccines.
Collapse
Affiliation(s)
- Sean H Kelly
- Biomedical Engineering Department, Duke University, Durham, NC, 27708, United States
| | - Yaoying Wu
- Biomedical Engineering Department, Duke University, Durham, NC, 27708, United States
| | - Ajay K Varadhan
- Biomedical Engineering Department, Duke University, Durham, NC, 27708, United States
| | - Elizabeth J Curvino
- Biomedical Engineering Department, Duke University, Durham, NC, 27708, United States
| | - Anita S Chong
- Department of Surgery, The University of Chicago, Chicago, IL 60637, United States
| | - Joel H Collier
- Biomedical Engineering Department, Duke University, Durham, NC, 27708, United States.
| |
Collapse
|
14
|
Kumpanenko IV, Ivanova NA, Panin EO, Raevskaya EG, Kovaleva NY, Roshchin AV. Study of the Kinetic Features of Bimodal Gelation in Viscous Flow Fluids. RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY B 2020. [DOI: 10.1134/s1990793120010236] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
|
15
|
Raymond DM, Abraham BL, Fujita T, Watrous MJ, Toriki ES, Takano T, Nilsson BL. Low Molecular Weight Supramolecular Hydrogels for Sustained and Localized In Vivo Drug Delivery. ACS APPLIED BIO MATERIALS 2019; 2:2116-2124. [PMID: 34136760 DOI: 10.1021/acsabm.9b00125] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Supramolecular hydrogels are emerging as next-generation alternatives to synthetic polymers for drug delivery applications. Self-assembling peptides are a promising class of supramolecular gelator for in vivo drug delivery that have been slow to be adopted despite advantages in biocompatibility due to the relatively high cost of producing synthetic peptide hydrogels compared to synthetic polymer gels. Herein we describe the development and use of inexpensive low molecular weight cationic derivatives of phenylalanine (Phe) as injectable hydrogels for in vivo delivery of an anti-inflammatory drug, diclofenac, for pain mitigation in a mouse model. N-Fluorenylmethoxycarbonyl phenylalanine (Fmoc-Phe) derivatives were modified at the carboxylic acid with diaminopropane (DAP) to provide Fmoc-Phe-DAP molecules that spontaneously and rapidly self-assemble in aqueous solutions upon addition of physiologically relevant sodium chloride concentrations to give hydrogels. When self-assembly occurs in the presence of diclofenac, the drug molecule is efficiently encapsulated within the hydrogel network. These hydrogels exhibit robust shear-thinning behavior, mechanical stability, and drug release profiles to enable application as injectable hydrogels for in vivo drug delivery. Delivery of diclofenac in vivo was demonstrated by a localized injection of an Fmoc-F5-Phe-DAP/diclofenac hydrogel into the ankle joint of mice with induced ankle injury and associated inflammation-induced pain. Remediation of pain in the ankle joint was observed immediately after initial injection and was sustained for a period of nearly two weeks while diclofenac controls remediated pain for less than one day. This data demonstrates the promise of these supramolecular hydrogels as inexpensive next-generation materials for sustained and localized drug delivery in vivo.
Collapse
Affiliation(s)
| | | | - Takumi Fujita
- Eastman Institute for Oral Health, University of Rochester Medical Center, Rochester, NY 14642
| | - Matthew J Watrous
- Department of Chemistry, University of Rochester, Rochester, NY 14627
| | - Ethan S Toriki
- Department of Chemistry, University of Rochester, Rochester, NY 14627
| | - Takahiro Takano
- Eastman Institute for Oral Health, University of Rochester Medical Center, Rochester, NY 14642
| | - Bradley L Nilsson
- Department of Chemistry, University of Rochester, Rochester, NY 14627
| |
Collapse
|
16
|
Liu W, Wong-Noonan S, Pham NB, Pradhan I, Spigelmyer A, Funk R, Nedzesky J, Cohen H, Gawalt ES, Fan Y, Meng WS. A genetically engineered Fc-binding amphiphilic polypeptide for congregating antibodies in vivo. Acta Biomater 2019; 88:211-223. [PMID: 30822553 DOI: 10.1016/j.actbio.2019.02.037] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2018] [Revised: 02/25/2019] [Accepted: 02/25/2019] [Indexed: 01/08/2023]
Abstract
We report herein an affinity-based hydrogel used in creating subcutaneous depots of antibodies in vivo. The biomaterials design centered on pG_EAK, a polypeptide we designed and expressed in E. coli. The sequence consists of a truncated protein G (pG) genetically fused with repeats of the amphiphilic sequence AEAEAKAK ("EAK"). Capture of IgG was demonstrated in vitro in gels prepared from admixing pG_EAK and EAK ("pG_EAK/EAK gel"). The binding affinities and kinetics of pG for IgG were recapitulated in the pG_EAK polypeptide. Injecting IgG antibodies formulated with pG_EAK/EAK gel into subcutaneous space resulted in retention of the antibodies at the site for at least six days, whereas only signal at background levels was detected in grafts injected with IgG formulated in saline or diffusion-driven gel. The local retention of IgG in pG_EAK/EAK gel was correlated with limited distribution of the antibody in liver, spleen and lymph nodes, in contrast to those injected with antibodies formulated in saline or non-Fc binding EAK gel. In addition, antibodies formulated with pG_EAK/EAK gel and injected in mouse footpads were found to retain at the site for 19 days. As a demonstration of potential bioengineering applications, thymic epithelial cells (TECs), the primary population of thymic stromal cells that are critical for the development of T-lymphocytes, were mixed with pG_EAK/EAK gel formulated with TEC-specific anti-EpCAM antibodies and injected subcutaneously into athymic nude mice. The injected TECs congregated into functional thymic units in vivo, supporting the development of both CD4+ and CD8+ T cells as well as Foxp3+ regulatory T cells in the mice. In conclusion, pG_EAK/EAK gel can be used to retain IgG locally in vivo, and can be tailored as scaffolds for controlling deposition of molecular and/or cellular therapeutics. STATEMENT OF SIGNIFICANCE: The unique concept of the work centers on the genetic fusion of an Fc-binding domain and a self-assembling domain into a single polypeptide. To our knowledge, such bi-functional peptide has not been reported in the literature. The impact of the work lies in the ability to display IgG antibodies and Fc-fusion proteins of any specificity. The data shown demonstrate the platform can be used to localize IgG in vivo, and can be tailored for controlling deposition of primary thymic epithelial cells (TECs). The results support a biomaterials-based strategy by which TECs can be delivered as functional units to support T-lymphocyte development in vivo. The platform described in the study may serve as an important tool for immune engineering.
Collapse
|
17
|
Pham NB, Liu W, Schueller NR, Gawalt ES, Fan Y, Meng WS. Toward reducing biomaterial antigenic potential: a miniaturized Fc-binding domain for local deposition of antibodies. Biomater Sci 2019; 7:760-772. [PMID: 30574644 PMCID: PMC6410374 DOI: 10.1039/c8bm01220b] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2023]
Abstract
A peptide derived from staphylococcal protein A (SpA) was developed as an affinity module for antibody delivery applications. The miniaturized protein consists of the first helix of the engineered SpA Z domain fused with the self-assembling peptide (SAP) AEAEAKAKAEAEAKAK, or EAK. The resulting peptide, named Z15_EAK, was shown to possess fibrillization properties and an Fc-binding function. The peptide induced a red shift in the Congo red absorbance characteristic of peptide fibrils, also evidenced in transmission electron microscopy images. The one-site binding affinity (Kd) of a gel-like coacervate generated by admixing Z15_EAK with EAK for IgG was determined to be 1.27 ± 0.14 μM based on a microplate-based titration assay. The coacervate was found to localize IgG subcutaneously in mouse footpads for 8 to 28 days. A set of in vivo data was fit to a one-compartment model for simulating the relative fractions of IgG dissociated from the materials in the depot. The model predicted that close to 27% of the antibodies injected were available unbound for the duration of the experiment. Z15_EAK did not appear to induce innate immune responses; injecting Z15_EAK into mouse footpads elicited neither interleukin-6 (IL-6) nor tumor necrosis factor-alpha (TNF-α) from splenocytes isolated from the animals one day, seven days, or eleven days afterward. The antigenic potential of Z15 was analyzed using a bioinformatic approach in predicting sequences in SpA and Z15 dually presented by class I and class II human MHC alleles covering the majority of the population. A peptide in SpA identified as a potential T cell epitope cross reacting with a known epitope in a microbial antigen was eliminated by miniaturization. These results demonstrate that Z15_EAK is a potential platform for generating antibody depots by which the impacts of Fc-based biotherapeutics can be enhanced through spatiotemporal control.
Collapse
Affiliation(s)
- Ngoc B Pham
- Graduate School of Pharmaceutical Sciences, Duquesne University, Pittsburgh, PA 15282, USA.
| | | | | | | | | | | |
Collapse
|
18
|
Abstract
Self-assembled peptide nanostructures have been increasingly exploited as functional materials for applications in biomedicine and energy. The emergent properties of these nanomaterials determine the applications for which they can be exploited. It has recently been appreciated that nanomaterials composed of multicomponent coassembled peptides often display unique emergent properties that have the potential to dramatically expand the functional utility of peptide-based materials. This review presents recent efforts in the development of multicomponent peptide assemblies. The discussion includes multicomponent assemblies derived from short low molecular weight peptides, peptide amphiphiles, coiled coil peptides, collagen, and β-sheet peptides. The design, structure, emergent properties, and applications for these multicomponent assemblies are presented in order to illustrate the potential of these formulations as sophisticated next-generation bio-inspired materials.
Collapse
Affiliation(s)
- Danielle M Raymond
- Department of Chemistry, University of Rochester, Rochester, NY 14627-0216, USA.
| | | |
Collapse
|
19
|
Halperin-Sternfeld M, Ghosh M, Sevostianov R, Grigoriants I, Adler-Abramovich L. Molecular co-assembly as a strategy for synergistic improvement of the mechanical properties of hydrogels. Chem Commun (Camb) 2018; 53:9586-9589. [PMID: 28808707 DOI: 10.1039/c7cc04187j] [Citation(s) in RCA: 69] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Molecular self-assembly is a key direction for the fabrication of advanced materials. Yet, the physical properties of the formed assemblies are limited by the inherent characteristics of the specific building blocks. Here, we have applied a co-assembly approach to synergistically modulate the mechanical properties of peptide hydrogels, thereby forming extremely stable and rigid hydrogels.
Collapse
Affiliation(s)
- Michal Halperin-Sternfeld
- Department of Oral Biology, The Goldschleger School of Dental Medicine, Sackler Faculty of Medicine, Tel Aviv University, 69978, Israel.
| | | | | | | | | |
Collapse
|
20
|
Solano CM, Wen Y, Han H, Collier JH. Practical Considerations in the Design and Use of Immunologically Active Fibrillar Peptide Assemblies. Methods Mol Biol 2018; 1777:233-248. [PMID: 29744839 DOI: 10.1007/978-1-4939-7811-3_14] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The design, formulation, and immunological evaluation of self-assembling peptide materials is relatively straightforward. Indeed, one of the advantages of synthetic self-assembling peptides is that one can progress from initial concept to in vivo testing in a matter of days. However, because these materials are supramolecular, working with them is not without some practical challenges, and subtle changes in design, synthesis, handling, and formulation can affect the materials' immunogenicity. This chapter is intended to communicate some of these practical aspects of working with these materials that are not always enumerated in conventional research papers. Epitope considerations, peptide synthesis, purification, storage, nanofiber formation, quality control, immunological evaluation, and the overall phenotypic characteristics of the immune responses to be expected from these materials are discussed.
Collapse
Affiliation(s)
| | - Yi Wen
- Department of Surgery, University of Chicago, Chicago, IL, USA
- Department of Biomedical Engineering, Duke University, Durham, NC, USA
| | - Huifang Han
- Department of Surgery, University of Chicago, Chicago, IL, USA
| | - Joel H Collier
- Department of Surgery, University of Chicago, Chicago, IL, USA.
- Department of Biomedical Engineering, Duke University, Durham, NC, USA.
| |
Collapse
|
21
|
Restuccia A, Hudalla GA. Tuning carbohydrate density enhances protein binding and inhibition by glycosylated β-sheet peptide nanofibers. Biomater Sci 2018; 6:2327-2335. [DOI: 10.1039/c8bm00533h] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The efficacy of glycosylated β-sheet peptide nanofibers for inhibiting carbohydrate-binding proteins can be increased by tuning carbohydrate density to maximize protein binding affinity.
Collapse
Affiliation(s)
- Antonietta Restuccia
- J. Crayton Pruitt Family Department of Biomedical Engineering
- University of Florida
- Gainesville
- USA 32611
| | - Gregory A. Hudalla
- J. Crayton Pruitt Family Department of Biomedical Engineering
- University of Florida
- Gainesville
- USA 32611
| |
Collapse
|
22
|
Mora-Solano C, Wen Y, Han H, Chen J, Chong AS, Miller ML, Pompano RR, Collier JH. Active immunotherapy for TNF-mediated inflammation using self-assembled peptide nanofibers. Biomaterials 2017; 149:1-11. [PMID: 28982051 DOI: 10.1016/j.biomaterials.2017.09.031] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2017] [Revised: 09/18/2017] [Accepted: 09/25/2017] [Indexed: 11/18/2022]
Abstract
Active immunotherapies raising antibody responses against autologous targets are receiving increasing interest as alternatives to the administration of manufactured antibodies. The challenge in such an approach is generating protective and adjustable levels of therapeutic antibodies while at the same time avoiding strong T cell responses that could lead to autoimmune reactions. Here we demonstrate the design of an active immunotherapy against TNF-mediated inflammation using short synthetic peptides that assemble into supramolecular peptide nanofibers. Immunization with these materials, without additional adjuvants, was able to break B cell tolerance and raise protective antibody responses against autologous TNF in mice. The strength of the anti-TNF antibody response could be tuned by adjusting the epitope content in the nanofibers, and the T-cell response was focused on exogenous and non-autoreactive T-cell epitopes. Immunization with unadjuvanted peptide nanofibers was therapeutic in a lethal model of acute inflammation induced by intraperitoneally delivered lipopolysaccharide, whereas formulations adjuvanted with CpG showed comparatively poorer protection that correlated with a more Th1-polarized response. Additionally, immunization with peptide nanofibers did not diminish the ability of mice to clear infections of Listeria monocytogenes. Collectively this work suggests that synthetic self-assembled peptides can be attractive platforms for active immunotherapies against autologous targets.
Collapse
Affiliation(s)
- Carolina Mora-Solano
- Department of Surgery, University of Chicago, Chicago, IL, 60637, United States; Molecular Pathogenesis Program, University of Chicago, Chicago, IL, 60637, United States
| | - Yi Wen
- Department of Surgery, University of Chicago, Chicago, IL, 60637, United States
| | - Huifang Han
- Department of Surgery, University of Chicago, Chicago, IL, 60637, United States
| | - Jianjun Chen
- Department of Surgery, University of Chicago, Chicago, IL, 60637, United States
| | - Anita S Chong
- Department of Surgery, University of Chicago, Chicago, IL, 60637, United States
| | - Michelle L Miller
- Molecular Pathogenesis Program, University of Chicago, Chicago, IL, 60637, United States
| | - Rebecca R Pompano
- Department of Chemistry, University of Virginia, Charlottesville, VA, 22904, United States
| | - Joel H Collier
- Department of Surgery, University of Chicago, Chicago, IL, 60637, United States; Molecular Pathogenesis Program, University of Chicago, Chicago, IL, 60637, United States.
| |
Collapse
|
23
|
Yu Z, Cai Z, Chen Q, Liu M, Ye L, Ren J, Liao W, Liu S. Engineering β-sheet peptide assemblies for biomedical applications. Biomater Sci 2017; 4:365-74. [PMID: 26700207 DOI: 10.1039/c5bm00472a] [Citation(s) in RCA: 65] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Hydrogels have been widely studied in various biomedical applications, such as tissue engineering, cell culture, immunotherapy and vaccines, and drug delivery. Peptide-based nanofibers represent a promising new strategy for current drug delivery approaches and cell carriers for tissue engineering. This review focuses on the recent advances in the use of self-assembling engineered β-sheet peptide assemblies for biomedical applications. The applications of peptide nanofibers in biomedical fields, such as drug delivery, tissue engineering, immunotherapy, and vaccines, are highlighted. The current challenges and future perspectives for self-assembling peptide nanofibers in biomedical applications are discussed.
Collapse
Affiliation(s)
- Zhiqiang Yu
- School of Pharmaceutical Sciences, Guangdong Provincial Key Laboratory of New Drug Screening, Southern Medical University, Guangzhou 510515, China.
| | - Zheng Cai
- School of Pharmaceutical Sciences, Guangdong Provincial Key Laboratory of New Drug Screening, Southern Medical University, Guangzhou 510515, China.
| | - Qiling Chen
- School of Pharmaceutical Sciences, Guangdong Provincial Key Laboratory of New Drug Screening, Southern Medical University, Guangzhou 510515, China.
| | - Menghua Liu
- School of Pharmaceutical Sciences, Guangdong Provincial Key Laboratory of New Drug Screening, Southern Medical University, Guangzhou 510515, China.
| | - Ling Ye
- School of Pharmaceutical Sciences, Guangdong Provincial Key Laboratory of New Drug Screening, Southern Medical University, Guangzhou 510515, China.
| | - Jiaoyan Ren
- Department of Food Science and Technology, South China University of Technology, Wushan Road 381, Guangzhou, Guangdong, China.
| | - Wenzhen Liao
- Department of Food Science and Technology, South China University of Technology, Wushan Road 381, Guangzhou, Guangdong, China.
| | - Shuwen Liu
- School of Pharmaceutical Sciences, Guangdong Provincial Key Laboratory of New Drug Screening, Southern Medical University, Guangzhou 510515, China.
| |
Collapse
|
24
|
Qian Y, Matson JB. Gasotransmitter delivery via self-assembling peptides: Treating diseases with natural signaling gases. Adv Drug Deliv Rev 2017; 110-111:137-156. [PMID: 27374785 DOI: 10.1016/j.addr.2016.06.017] [Citation(s) in RCA: 55] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2016] [Revised: 06/16/2016] [Accepted: 06/23/2016] [Indexed: 11/19/2022]
Abstract
Nitric oxide (NO), carbon monoxide (CO), and hydrogen sulfide (H2S) are powerful signaling molecules that play a variety of roles in mammalian biology. Collectively called gasotransmitters, these gases have wide-ranging therapeutic potential, but their clinical use is limited by their gaseous nature, extensive reactivity, short half-life, and systemic toxicity. Strategies for gasotransmitter delivery with control over the duration and location of release are therefore vital for developing effective therapies. An attractive strategy for gasotransmitter delivery is though injectable or implantable gels, which can ideally deliver their payload over a controllable duration and then degrade into benign metabolites. Self-assembling peptide-based gels are well-suited to this purpose due to their tunable mechanical properties, easy chemical modification, and inherent biodegradability. In this review we illustrate the biological roles of NO, CO, and H2S, discuss their therapeutic potential, and highlight recent efforts toward their controlled delivery with a focus on peptide-based delivery systems.
Collapse
Affiliation(s)
- Yun Qian
- Department of Chemistry and Macromolecules Innovation Institute, Virginia Tech, Blacksburg, VA 24061, United States
| | - John B Matson
- Department of Chemistry and Macromolecules Innovation Institute, Virginia Tech, Blacksburg, VA 24061, United States.
| |
Collapse
|
25
|
De Leon-Rodriguez LM, Hemar Y, Mo G, Mitra AK, Cornish J, Brimble MA. Multifunctional thermoresponsive designer peptide hydrogels. Acta Biomater 2017; 47:40-49. [PMID: 27744067 DOI: 10.1016/j.actbio.2016.10.014] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2016] [Revised: 10/10/2016] [Accepted: 10/10/2016] [Indexed: 02/07/2023]
Abstract
We report the synthesis and characterization of multifunctional peptides comprised of a hydrogel forming β-sheet peptide segment and a matrix metalloproteinase 2 substrate containing a propargylglycinyl linker that is further derivatized with an RGD peptide sequence via "click" chemistry. In contrast to currently known systems, these multifunctional peptides formed gels that are stiffer than those formed by their respective precursors. All the peptides showed reversible thermoresponsive properties, which render them as suitable lead systems for a variety of possible biomedical applications. STATEMENT OF SIGNIFICANCE In general, it has been frequently observed that chemical biofunctionalization of peptide hydrogels adversely affects peptide assembly, hydrogel formation or mechanical properties, which severely compromises their application. A functionalization protocol that allows to generate peptide hydrogels that display significantly improved mechanical properties over their unfunctionalized counterparts is reported in this work. These peptides also showed thermoresponsive viscoelastic characteristics, including an example of a peptide hydrogel that displays lower critical solution temperature behaviour.
Collapse
Affiliation(s)
- Luis M De Leon-Rodriguez
- School of Biological Sciences, The University of Auckland, 3A Symonds St, Thomas Building, Auckland 1010, New Zealand.
| | - Yacine Hemar
- School of Chemical Sciences, The University of Auckland, 23 Symonds St, Auckland 1010, New Zealand
| | - Guang Mo
- Beijing Synchrotron Radiation Facility, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, China
| | - Alok K Mitra
- School of Biological Sciences, The University of Auckland, 3A Symonds St, Thomas Building, Auckland 1010, New Zealand
| | - Jillian Cornish
- Department of Medicine, The University of Auckland, Auckland, New Zealand
| | - Margaret A Brimble
- School of Biological Sciences, The University of Auckland, 3A Symonds St, Thomas Building, Auckland 1010, New Zealand; School of Chemical Sciences, The University of Auckland, 23 Symonds St, Auckland 1010, New Zealand.
| |
Collapse
|
26
|
DiMaio JTM, Raymond DM, Nilsson BL. Display of functional proteins on supramolecular peptide nanofibrils using a split-protein strategy. Org Biomol Chem 2017. [DOI: 10.1039/c7ob01057e] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The display of functional proteins on self-assembled peptide nanofibrils is accomplished by noncovalent attachment using a split-protein strategy.
Collapse
|
27
|
Xu F, Liu J, Tian J, Gao L, Cheng X, Pan Y, Sun Z, Li X. Supramolecular Self-Assemblies with Nanoscale RGD Clusters Promote Cell Growth and Intracellular Drug Delivery. ACS APPLIED MATERIALS & INTERFACES 2016; 8:29906-29914. [PMID: 27759366 DOI: 10.1021/acsami.6b08624] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
In this work, we reported the generation of a novel supramolecular hydrogelator from a peptide derivative which consisted of a structural motif (e.g., Fc-FF) for supramolecular self-assembly and a functional moiety (e.g., RGD) for integrin binding. Following self-assembly in water at neutral pH, this molecule first tended to form metastable spherical aggregates, which subsequently underwent a morphological transformation to form high-aspect-ratio nanostructures over 2 h when aged at room temperature. More importantly, because of the presence of nanoscale RGD clusters on the surface of nanostructures, the self-assembled nanomaterials (e.g., nanoparticles and nanofibers) can be potentially used as a biomimetic matrix for cell culture and as a vector for cell-targeting drug delivery via multivalent RGD-integrin interactions.
Collapse
Affiliation(s)
- Fengyang Xu
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, College of Chemistry, Chemical Engineering and Materials Science, Soochow University , Suzhou 215123, China
| | - Jie Liu
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, College of Chemistry, Chemical Engineering and Materials Science, Soochow University , Suzhou 215123, China
| | - Jian Tian
- School of Biology and Basic Medical Science, Soochow University , Suzhou 215123, China
| | - Linfeng Gao
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, College of Chemistry, Chemical Engineering and Materials Science, Soochow University , Suzhou 215123, China
| | - Xiaju Cheng
- School of Biology and Basic Medical Science, Soochow University , Suzhou 215123, China
| | - Yue Pan
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, College of Chemistry, Chemical Engineering and Materials Science, Soochow University , Suzhou 215123, China
| | - Ziling Sun
- School of Biology and Basic Medical Science, Soochow University , Suzhou 215123, China
| | - Xinming Li
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, College of Chemistry, Chemical Engineering and Materials Science, Soochow University , Suzhou 215123, China
- State Key Laboratory of Molecular Engineering of Polymers, Fudan University , Shanghai 200433, China
| |
Collapse
|
28
|
Mahapatra RD, Dey J. Instant gels from mixtures of amines and anhydrides at room temperature. Colloids Surf B Biointerfaces 2016; 147:422-433. [DOI: 10.1016/j.colsurfb.2016.08.026] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2016] [Revised: 08/16/2016] [Accepted: 08/18/2016] [Indexed: 10/21/2022]
|
29
|
Wen Y, Waltman A, Han H, Collier JH. Switching the Immunogenicity of Peptide Assemblies Using Surface Properties. ACS NANO 2016; 10:9274-9286. [PMID: 27680575 PMCID: PMC5704984 DOI: 10.1021/acsnano.6b03409] [Citation(s) in RCA: 102] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
Biomaterials created from supramolecular peptides, proteins, and their derivatives have been receiving increasing interest for both immunological applications, such as vaccines and immunotherapies, as well as ostensibly nonimmunological applications, such as therapeutic delivery or tissue engineering. However, simple rules for either maximizing immunogenicity or abolishing it have yet to be elucidated, even though immunogenicity is a prime consideration for the design of any supramolecular biomaterial intended for use in vivo. Here, we investigated a range of physicochemical properties of fibrillized peptide biomaterials, identifying negative surface charge as a means for completely abolishing antibody and T cell responses against them in mice, even when they display a competent epitope. The work was facilitated by the modularity of the materials, which enabled the generation of a set of co-assembled fibrillar peptide materials with broad ranges of surface properties. It was found that negative surface charge, provided via negatively charged amino acid residues, prevented T cell and antibody responses to antigen-carrying assemblies because it prevented uptake of the materials by antigen-presenting cells (APCs), which in turn prevented presentation of the epitope peptide in the APCs' major histocompatibility class II molecules. Conversely, positive surface charge augmented the uptake of fibrillized peptides by APCs. These findings suggest that some surface characteristics, such as extensive negative charge, should be avoided in vaccine design using supramolecular peptide assemblies. More importantly, it provides a strategy to switch off potentially problematic immunogenicity for using these materials in nonimmunological applications.
Collapse
Affiliation(s)
- Yi Wen
- Duke University, Biomedical Engineering Department, Durham, NC 27708, USA
- University of Chicago, Department of Surgery, Chicago, IL 60637, USA
| | - Amelia Waltman
- University of Chicago, Department of Surgery, Chicago, IL 60637, USA
| | - Huifang Han
- University of Chicago, Department of Surgery, Chicago, IL 60637, USA
| | - Joel H. Collier
- Duke University, Biomedical Engineering Department, Durham, NC 27708, USA
- University of Chicago, Department of Surgery, Chicago, IL 60637, USA
- Corresponding Author: Joel H. Collier, PhD, Associate Professor, Department of Biomedical Engineering, Duke University, Fitzpatrick CIEMAS 1393, Campus Box 90281, Durham, NC 27708-0281, T: 919-681-9768,
| |
Collapse
|
30
|
Abstract
Biomaterials for tissue engineering provide scaffolds to support cells and guide tissue regeneration. Despite significant advances in biomaterials design and fabrication techniques, engineered tissue constructs remain functionally inferior to native tissues. This is largely due to the inability to recreate the complex and dynamic hierarchical organization of the extracellular matrix components, which is intimately linked to a tissue's biological function. This review discusses current state-of-the-art strategies to control the spatial presentation of physical and biochemical cues within a biomaterial to recapitulate native tissue organization and function.
Collapse
Affiliation(s)
- Lesley W Chow
- Department of Materials Science and Engineering, Lehigh University, Bethlehem, PA 18015, USA Bioengineering Program, Lehigh University, Bethlehem, PA 18015, USA
| | - Jacob F Fischer
- Bioengineering Program, Lehigh University, Bethlehem, PA 18015, USA
| |
Collapse
|
31
|
Fettis MM, Wei Y, Restuccia A, Kurian JJ, Wallet SM, Hudalla GA. Microgels with tunable affinity-controlled protein release via desolvation of self-assembled peptide nanofibers. J Mater Chem B 2016; 4:3054-3064. [PMID: 32263044 DOI: 10.1039/c5tb02446c] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
With a growing number of bioactive protein drugs approved for clinical use each year, there is increasing need for vehicles for localized protein delivery to reduce administered doses, prevent off-target activity, and maintain protein bioactivity. Ideal protein delivery vehicles provide high encapsulation efficiency of bioactive drug, enable fine-tuning of protein release profiles, are biocompatible, and can be administered via minimally-invasive routes. Here we developed an approach to create micron-sized hydrated gels (i.e."microgels") for protein delivery that fulfill these requirements via desolvation of self-assembled β-sheet peptide nanofibers. Specifically, aqueous solutions of peptide nanofibers were diluted under stirring conditions in a "desolvating agent", such as ethanol, which is miscible with water but poorly solvates peptides. The desolvating agent induced nanofiber physical crosslinking into microgels that retained β-sheet secondary structure and were stable in aqueous solutions. Microgels did not activate dendritic cells in vitro, suggesting they are biocompatible. Peptide nanofibers and proteins having similar non-solvent immiscibility properties were co-desolvated to produce protein-loaded microgels with loading efficiencies of ∼85%. Encapsulated bioactive proteins rapidly diffused into bulk aqueous media, as expected for hydrated gels. Modifying peptide nanofibers with a protein-binding ligand provided tunable affinity-controlled protein release. Biocompatible microgels formed via desolvation of self-assembled peptide nanofibers are therefore likely to be broadly useful as vehicles for localized delivery of bioactive proteins, as well as other therapeutic molecules.
Collapse
Affiliation(s)
- Margaret M Fettis
- J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, 1275 Center Drive, Gainesville, FL 32611, USA.
| | | | | | | | | | | |
Collapse
|
32
|
Krieg E, Bastings MMC, Besenius P, Rybtchinski B. Supramolecular Polymers in Aqueous Media. Chem Rev 2016; 116:2414-77. [DOI: 10.1021/acs.chemrev.5b00369] [Citation(s) in RCA: 527] [Impact Index Per Article: 65.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
| | | | - Pol Besenius
- Institute
of Organic Chemistry, Johannes Gutenberg-Universität Mainz, Mainz 55128, Germany
| | - Boris Rybtchinski
- Department
of Organic Chemistry, Weizmann Institute of Science, Rehovot 76100, Israel
| |
Collapse
|
33
|
De Leon Rodriguez LM, Hemar Y, Cornish J, Brimble MA. Structure–mechanical property correlations of hydrogel forming β-sheet peptides. Chem Soc Rev 2016; 45:4797-824. [DOI: 10.1039/c5cs00941c] [Citation(s) in RCA: 103] [Impact Index Per Article: 12.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
This review discusses about β-sheet peptide structure at the molecular level and the bulk mechanical properties of the corresponding hydrogels.
Collapse
Affiliation(s)
| | - Yacine Hemar
- School of Chemical Sciences
- The University of Auckland
- Auckland
- New Zealand
- The Riddet Institute
| | - Jillian Cornish
- Department of Medicine
- The University of Auckland
- Auckland
- New Zealand
| | - Margaret A. Brimble
- School of Chemical Sciences
- The University of Auckland
- Auckland
- New Zealand
- Maurice Wilkins Centre for Molecular Biodiscovery
| |
Collapse
|
34
|
Sun T, Han H, Hudalla GA, Wen Y, Pompano RR, Collier JH. Thermal stability of self-assembled peptide vaccine materials. Acta Biomater 2016; 30:62-71. [PMID: 26584836 DOI: 10.1016/j.actbio.2015.11.019] [Citation(s) in RCA: 61] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2015] [Revised: 10/27/2015] [Accepted: 11/12/2015] [Indexed: 12/15/2022]
Abstract
The majority of current vaccines depend on a continuous "cold chain" of storage and handling between 2 and 8°C. Vaccines experiencing temperature excursions outside this range can suffer from reduced potency. This thermal sensitivity results in significant losses of vaccine material each year and risks the administration of vaccines with diminished protective ability, issues that are heightened in the developing world. Here, using peptide self-assemblies based on the fibril-forming peptide Q11 and containing the epitopes OVA323-339 from ovalbumin or ESAT651-70 from Mycobacterium tuberculosis, the chemical, conformational, and immunological stability of supramolecular peptide materials were investigated. It was expected that these materials would exhibit advantageous thermal stability owing to their adjuvant-free and fully synthetic construction. Neither chemical nor conformational changes were observed for either peptide when stored at 45°C for 7days. ESAT651-70-Q11 was strongly immunogenic whether it was stored as a dry powder or as aqueous nanofibers, showing undiminished immunogenicity even when stored as long as six months at 45°C. This result was in contrast to ESAT651-70 conjugated to a protein carrier and adjuvanted with alum, which demonstrated marked thermal sensitivity in these conditions. Antibody titers and affinities were undiminished in mice for OVA323-339-Q11 if it was stored as assembled nanofibers, yet some diminishment was observed for material stored as a dry powder. The OVA study was done in a different mouse strain and with a different prime/boost regimen, and so it should not be compared directly with the study for the ESAT epitope. This work indicates that peptide self-assemblies can possess attractive thermal stability properties in the context of vaccine development. STATEMENT OF SIGNIFICANCE Almost all current vaccines must be maintained within a tight and refrigerated temperature range, usually between 2 and 8°C. This presents significant challenges for their distribution, especially in the developing world. Here we report on the surprisingly robust thermal stability of a self-assembled peptide vaccine. In particular a self-assembled peptide vaccine containing a tuberculosis epitope maintained all of its potency in mice when exposed to an extreme thermal treatment of six months at 45°C. In a different mouse model, we investigated another model epitope and found some storage conditions where potency was diminished. Overall this study illustrates that some self-assembled peptide vaccines can have remarkable thermal stability.
Collapse
Affiliation(s)
- Tao Sun
- Department of Surgery, University of Chicago, 5841 S. Maryland Ave. MC 5032, Chicago, IL 60637, USA
| | - Huifang Han
- Department of Surgery, University of Chicago, 5841 S. Maryland Ave. MC 5032, Chicago, IL 60637, USA
| | - Gregory A Hudalla
- Department of Surgery, University of Chicago, 5841 S. Maryland Ave. MC 5032, Chicago, IL 60637, USA
| | - Yi Wen
- Department of Surgery, University of Chicago, 5841 S. Maryland Ave. MC 5032, Chicago, IL 60637, USA
| | - Rebecca R Pompano
- Department of Surgery, University of Chicago, 5841 S. Maryland Ave. MC 5032, Chicago, IL 60637, USA
| | - Joel H Collier
- Department of Surgery, University of Chicago, 5841 S. Maryland Ave. MC 5032, Chicago, IL 60637, USA.
| |
Collapse
|
35
|
Baker MB, Gosens RPJ, Albertazzi L, Matsumoto NM, Palmans ARA, Meijer EW. Exposing Differences in Monomer Exchange Rates of Multicomponent Supramolecular Polymers in Water. Chembiochem 2015; 17:207-13. [DOI: 10.1002/cbic.201500606] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2015] [Indexed: 01/10/2023]
Affiliation(s)
- Matthew B. Baker
- Institute of Complex Molecular Systems; Eindhoven University of Technology; P. O. Box 513 5600 MB Eindhoven The Netherlands
- MERLN Institute for Technology-Inspired Tissue Regeneration; University of Maastricht; P. O. Box 616 6200 MD Maastricht The Netherlands
| | - Ronald P. J. Gosens
- Institute of Complex Molecular Systems; Eindhoven University of Technology; P. O. Box 513 5600 MB Eindhoven The Netherlands
| | - Lorenzo Albertazzi
- Institute of Complex Molecular Systems; Eindhoven University of Technology; P. O. Box 513 5600 MB Eindhoven The Netherlands
| | - Nicholas M. Matsumoto
- Institute of Complex Molecular Systems; Eindhoven University of Technology; P. O. Box 513 5600 MB Eindhoven The Netherlands
| | - Anja R. A. Palmans
- Institute of Complex Molecular Systems; Eindhoven University of Technology; P. O. Box 513 5600 MB Eindhoven The Netherlands
| | - E. W. Meijer
- Institute of Complex Molecular Systems; Eindhoven University of Technology; P. O. Box 513 5600 MB Eindhoven The Netherlands
| |
Collapse
|
36
|
van Almen GC, Talacua H, Ippel BD, Mollet BB, Ramaekers M, Simonet M, Smits AIPM, Bouten CVC, Kluin J, Dankers PYW. Development of Non-Cell Adhesive Vascular Grafts Using Supramolecular Building Blocks. Macromol Biosci 2015; 16:350-62. [DOI: 10.1002/mabi.201500278] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2015] [Revised: 10/08/2015] [Indexed: 11/08/2022]
Affiliation(s)
- Geert C. van Almen
- Department of Biomedical Engineering; Laboratory of Chemical Biology, and Institute for Complex Molecular Systems; Eindhoven University of Technology; P.O. Box 513 5600 MB Eindhoven The Netherlands
| | - Hanna Talacua
- Department of Cardio-Thoracic Surgery; University Medical Center Utrecht; 3584 CX Utrecht The Netherlands
| | - Bastiaan D. Ippel
- Department of Biomedical Engineering; Laboratory of Chemical Biology, and Institute for Complex Molecular Systems; Eindhoven University of Technology; P.O. Box 513 5600 MB Eindhoven The Netherlands
| | - Björne B. Mollet
- Department of Biomedical Engineering; Laboratory of Chemical Biology, and Institute for Complex Molecular Systems; Eindhoven University of Technology; P.O. Box 513 5600 MB Eindhoven The Netherlands
| | - Mellany Ramaekers
- Department of Biomedical Engineering; Laboratory of Chemical Biology, and Institute for Complex Molecular Systems; Eindhoven University of Technology; P.O. Box 513 5600 MB Eindhoven The Netherlands
| | - Marc Simonet
- Department of Biomedical Engineering; Soft Tissue Biomechanics and Tissue Engineering and Institute for Complex Molecular Systems; Eindhoven University of Technology; P.O. Box 513 5600 MB Eindhoven The Netherlands
| | - Anthal I. P. M. Smits
- Department of Biomedical Engineering; Soft Tissue Biomechanics and Tissue Engineering and Institute for Complex Molecular Systems; Eindhoven University of Technology; P.O. Box 513 5600 MB Eindhoven The Netherlands
| | - Carlijn V. C. Bouten
- Department of Biomedical Engineering; Soft Tissue Biomechanics and Tissue Engineering and Institute for Complex Molecular Systems; Eindhoven University of Technology; P.O. Box 513 5600 MB Eindhoven The Netherlands
| | - Jolanda Kluin
- Department of Cardio-Thoracic Surgery; University Medical Center Utrecht; 3584 CX Utrecht The Netherlands
| | - Patricia Y. W. Dankers
- Department of Biomedical Engineering; Laboratory of Chemical Biology, and Institute for Complex Molecular Systems; Eindhoven University of Technology; P.O. Box 513 5600 MB Eindhoven The Netherlands
| |
Collapse
|
37
|
Restuccia A, Tian YF, Collier JH, Hudalla GA. Self-assembled glycopeptide nanofibers as modulators of galectin-1 bioactivity. Cell Mol Bioeng 2015; 8:471-487. [PMID: 26495044 DOI: 10.1007/s12195-015-0399-2] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
Galectins are carbohydrate-binding proteins that act as extracellular signaling molecules in various normal and pathological processes. Galectin bioactivity is mediated by specific non-covalent interactions with cell-surface and extracellular matrix (ECM) glycoproteins, which can enhance or inhibit signaling events that influence various cellular behaviors, including adhesion, proliferation, differentiation, and apoptosis. Here, we developed a materials approach to modulate galectin bioactivity by mimicking natural galectin-glycoprotein interactions. Specifically, we created a variant of a peptide that self-assembles into β-sheet nanofibers under aqueous conditions, QQKFQFQFEQQ (Q11), which has an asparagine residue modified with the monosaccharide N-acetylglucosamine (GlcNAc) at its N-terminus (GlcNAc-Q11). GlcNAc-Q11 self-assembled into β-sheet nanofibers under similar conditions as Q11. Nanofibrillar GlcNAc moieties were efficiently converted to the galectin-binding disaccharide N-acetyllactosamine (LacNAc) via the enzyme β-1,4-galactosyltransferase and the sugar donor UDP-galactose, while retaining β-sheet structure and nanofiber morphology. LacNAc-Q11 nanofibers bound galectin-1 and -3 in a LacNAc concentration-dependent manner, although nanofibers bound galectin-1 with higher affinity than galectin-3. In contrast, galectin-1 bound weakly to GlcNAc-Q11 nanofibers, while no galectin-3 binding to these nanofibers was observed. Galectin-1 binding to LacNAc-Q11 nanofibers was specific because it could be inhibited by excess soluble β-lactose, a galectin-binding carbohydrate. LacNAc-Q11 nanofibers inhibited galectin-1-mediated apoptosis of Jurkat T cells in a LacNAc concentration-dependent manner, but were unable to inhibit galectin-3 activity, consistent with galectin-binding affinity of the nanofibers. We envision that glycopeptide nanofibers capable of modulating galectin-1 bioactivity will be broadly useful as biomaterials for various medical applications, including cancer therapeutics, immunotherapy, tissue regeneration, and viral prophylaxis.
Collapse
Affiliation(s)
| | - Ye F Tian
- Department of Surgery, University of Chicago. ; Department of Biomedical Engineering, Illinois Institute of Technology
| | | | - Gregory A Hudalla
- J. Crayton Pruitt Family Department of Biomedical Engineering. ; Department of Surgery, University of Chicago
| |
Collapse
|
38
|
Swanekamp RJ, Welch JJ, Nilsson BL. Proteolytic stability of amphipathic peptide hydrogels composed of self-assembled pleated β-sheet or coassembled rippled β-sheet fibrils. Chem Commun (Camb) 2015; 50:10133-6. [PMID: 25050628 DOI: 10.1039/c4cc04644g] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Hydrogel networks composed of rippled β-sheet fibrils of coassembled D- and L-Ac-(FKFE)2-NH2 amphipathic peptides exhibit proteolytic stability and increased rheological strength compared to networks of self-assembled L-Ac-(FKFE)2-NH2 pleated β-sheet fibrils. Modifying the ratios of l and d peptides in the coassembled rippled β-sheet fibrils alters the degradation profiles of these hydrogel networks.
Collapse
Affiliation(s)
- Ria J Swanekamp
- Department of Chemistry, University of Rochester, Rochester, NY 14627-0216, USA.
| | | | | |
Collapse
|
39
|
Sur S, Tantakitti F, Matson JB, Stupp SI. Epitope topography controls bioactivity in supramolecular nanofibers. Biomater Sci 2015; 3:530-532. [PMID: 25745558 PMCID: PMC4346041 DOI: 10.1039/c4bm00326h] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Incorporating bioactivity into artificial scaffolds using peptide epitopes present in the extracellular matrix (ECM) is a well-known approach. A common strategy has involved epitopes that provide cells with attachment points and external cues through interaction with integrin receptors. Although a variety of bioactive sequences have been identified so far, less is known about their optimal display in a scaffold. We report here on the use of self-assembled peptide amphiphile (PA) nanofiber matrices to investigate the impact of spatial presentation of the fibronectin derived epitope RGDS on cell response. Using one, three, or five glycine residues, RGDS epitopes were systematically spaced out from the surface of the rigid nanofibers. We found that cell morphology was strongly affected by the separation of the epitope from the nanofiber surface, with the longest distance yielding the most cell-spreading, bundling of actin filaments, and a round-to-polygonal transformation of cell shape. Cell response to this type of epitope display was also accompanied with activated integrin-mediated signaling and formation of stronger adhesions between cells and substrate. Interestingly, unlike length, changing the molecular flexibility of the linker had minimal influence on cell behavior on the substrate for reasons that remain poorly understood. The use in this study of high persistence length nanofibers rather than common flexible polymers allows us to conclude that epitope topography at the nanoscale structure of a scaffold influences its bioactive properties independent of epitope density and mechanical properties.
Collapse
Affiliation(s)
- Shantanu Sur
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, IL, 60611, United States
- Department of Biology, Clarkson University, Potsdam, NY 13699, United States
| | - Faifan Tantakitti
- Department of Materials Science and Engineering, Northwestern University, Evanston, IL, 60208, United States
| | - John B. Matson
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, IL, 60611, United States
- Department of Chemistry, Virginia Tech, Blacksburg, VA, 24061, United States
| | - Samuel I. Stupp
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, IL, 60611, United States
- Department of Materials Science and Engineering, Northwestern University, Evanston, IL, 60208, United States
- Department of Chemistry, Northwestern University, Evanston, IL, 60208, United States
- Department of Biomedical Engineering, Northwestern University, Evanston, IL, 60208, United States
- Department of Medicine, Northwestern University, Chicago, IL, 60611, United States
| |
Collapse
|
40
|
Li X, Wang Y, Yang C, Shi S, Jin L, Luo Z, Yu J, Zhang Z, Yang Z, Chen H. Supramolecular nanofibers of triamcinolone acetonide for uveitis therapy. NANOSCALE 2014; 6:14488-94. [PMID: 25341704 DOI: 10.1039/c4nr04761c] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
Supramolecular nanofibers of prodrugs hold advantages for drug release due to their high drug payload, sustained and constant drug release behavior, and stimuli responsiveness. In this study, we report on a supramolecular hydrogel mainly formed by a clinically used drug triamcinolone acetonide (TA). Such a hydrogel could only be prepared via an ester bond hydrolysis process from its prodrug of succinated triamcinolone acetonide (STA). The resulting hydrogel could constantly release TA in the in vitro release experiment. The TA hydrogel possessed an excellent transscleral penetration ability, as evaluated by the in vitro transscleral transport study. The developed TA hydrogel also exhibited a great ocular compatibility in rats, as indicated by the optical coherence tomography (OCT) images, HE observation, and glial fibrillary acidic protein (GFAP) and vimentin immuno-staining assays of the retinas. Our TA hydrogel showed a decreased efficacy to inhibit ocular inflammation in the rat's experiment autoimmune uveitis (EAU) model compared to the commercial TA suspension (Transton), but without causing complications such as high intraocular pressure and cataracts. These promising properties of the hydrogel indicated its great potential for the treatment of eye diseases.
Collapse
Affiliation(s)
- Xingyi Li
- Institute of Biomedical Engineering, School of Ophthalmology & Optometry and Eye hospital, Wenzhou Medical University, 270 Xueyuan Road, Wenzhou 325027, P.R. China.
| | | | | | | | | | | | | | | | | | | |
Collapse
|
41
|
Wen Y, Roudebush SL, Buckholtz GA, Goehring TR, Giannoukakis N, Gawalt ES, Meng WS. Coassembly of amphiphilic peptide EAK16-II with histidinylated analogues and implications for functionalization of β-sheet fibrils in vivo. Biomaterials 2014; 35:5196-205. [DOI: 10.1016/j.biomaterials.2014.03.009] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2014] [Accepted: 03/03/2014] [Indexed: 02/02/2023]
|
42
|
Bryksin AV, Brown AC, Baksh MM, Finn M, Barker TH. Learning from nature - novel synthetic biology approaches for biomaterial design. Acta Biomater 2014; 10:1761-9. [PMID: 24463066 DOI: 10.1016/j.actbio.2014.01.019] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2013] [Revised: 01/16/2014] [Accepted: 01/16/2014] [Indexed: 10/25/2022]
Abstract
Many biomaterials constructed today are complex chemical structures that incorporate biologically active components derived from nature, but the field can still be said to be in its infancy. The need for materials that bring sophisticated properties of structure, dynamics and function to medical and non-medical applications will only grow. Increasing appreciation of the functionality of biological systems has caused biomaterials researchers to consider nature for design inspiration, and many examples exist of the use of biomolecular motifs. Yet evolution, nature's only engine for the creation of new designs, has been largely ignored by the biomaterials community. Molecular evolution is an emerging tool that enables one to apply nature's engineering principles to non-natural situations using variation and selection. The purpose of this review is to highlight the most recent advances in the use of molecular evolution in synthetic biology applications for biomaterial engineering, and to discuss some of the areas in which this approach may be successfully applied in the future.
Collapse
|
43
|
Stevenson MD, Piristine H, Hogrebe NJ, Nocera TM, Boehm MW, Reen RK, Koelling KW, Agarwal G, Sarang-Sieminski AL, Gooch KJ. A self-assembling peptide matrix used to control stiffness and binding site density supports the formation of microvascular networks in three dimensions. Acta Biomater 2013; 9:7651-61. [PMID: 23603000 DOI: 10.1016/j.actbio.2013.04.002] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2012] [Revised: 03/01/2013] [Accepted: 04/01/2013] [Indexed: 01/13/2023]
Abstract
A three-dimensional (3-D) cell culture system that allows control of both substrate stiffness and integrin binding density was created and characterized. This system consisted of two self-assembling peptide (SAP) sequences that were mixed in different ratios to achieve the desired gel stiffness and adhesiveness. The specific peptides used were KFE ((acetyl)-FKFEFKFE-CONH2), which has previously been reported not to support cell adhesion or MVN formation, and KFE-RGD ((acetyl)-GRGDSP-GG-FKFEFKFE-CONH2), which is a similar sequence that incorporates the RGD integrin binding site. Storage modulus for these gels ranged from ∼60 to 6000Pa, depending on their composition and concentration. Atomic force microscopy revealed ECM-like fiber microarchitecture of gels consisting of both pure KFE and pure KFE-RGD as well as mixtures of the two peptides. This system was used to study the contributions of both matrix stiffness and adhesiveness on microvascular network (MVN) formation of endothelial cells and the morphology of human mesenchymal stem cells (hMSC). When endothelial cells were encapsulated within 3-D gel matrices without binding sites, little cell elongation and no network formation occurred, regardless of the stiffness. In contrast, matrices containing the RGD binding site facilitated robust MVN formation, and the extent of this MVN formation was inversely proportional to matrix stiffness. Compared with a matrix of the same stiffness with no binding sites, a matrix containing RGD-functionalized peptides resulted in a ∼2.5-fold increase in the average length of network structure, which was used as a quantitative measure of MVN formation. Matrices with hMSC facilitated an increased number and length of cellular projections at higher stiffness when RGD was present, but induced a round morphology at every stiffness when RGD was absent. Taken together, these results demonstrate the ability to control both substrate stiffness and binding site density within 3-D cell-populated gels and reveal an important role for both stiffness and adhesion on cellular behavior that is cell-type specific.
Collapse
Affiliation(s)
- M D Stevenson
- The Ohio State University, Department of Biomedical Engineering, 270 Bevis Hall 1080 Carmack Rd., Columbus, OH 43210, USA
| | | | | | | | | | | | | | | | | | | |
Collapse
|
44
|
Hamley IW, Dehsorkhi A, Castelletto V. Coassembly in binary mixtures of peptide amphiphiles containing oppositely charged residues. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2013; 29:5050-9. [PMID: 23534557 DOI: 10.1021/la400163q] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
The self-assembly in water of designed peptide amphiphile (PA) C16-ETTES containing two anionic residues and its mixtures with C16-KTTKS containing two cationic residues has been investigated. Multiple spectroscopy, microscopy, and scattering techniques are used to examine ordering extending from the β-sheet structures up to the fibrillar aggregate structure. The peptide amphiphiles both comprise a hexadecyl alkyl chain and a charged pentapeptide headgroup containing two charged residues. For C16-ETTES, the critical aggregation concentration was determined by fluorescence experiments. FTIR and CD spectroscopy were used to examine β-sheet formation. TEM revealed highly extended tape nanostructures with some striped regions corresponding to bilayer structures viewed edge-on. Small-angle X-ray scattering showed a main 5.3 nm bilayer spacing along with a 3 nm spacing. These spacings are assigned respectively to predominant hydrated bilayers and a fraction of dehydrated bilayers. Signs of cooperative self-assembly are observed in the mixtures, including reduced bundling of peptide amphiphile aggregates (extended tape structures) and enhanced β-sheet formation.
Collapse
Affiliation(s)
- I W Hamley
- School of Chemistry, Pharmacy and Food Biosciences, University of Reading, Reading, UK
| | | | | |
Collapse
|
45
|
Stephanopoulos N, Ortony JH, Stupp SI. Self-Assembly for the Synthesis of Functional Biomaterials. ACTA MATERIALIA 2013; 61:912-930. [PMID: 23457423 PMCID: PMC3580867 DOI: 10.1016/j.actamat.2012.10.046] [Citation(s) in RCA: 153] [Impact Index Per Article: 13.9] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/14/2023]
Abstract
The use of self-assembly for the construction of functional biomaterials is a highly promising and exciting area of research, with great potential for the treatment of injury or disease. By using multiple noncovalent interactions, coded into the molecular design of the constituent components, self-assembly allows for the construction of complex, adaptable, and highly tunable materials with potent biological effects. This review describes some of the seminal advances in the use of self-assembly to make novel systems for regenerative medicine and biology. Materials based on peptides, proteins, DNA, or hybrids thereof have found application in the treatment of a wide range of injuries and diseases, and this review outlines the design principles and practical applications of these systems. Most of the examples covered focus on the synthesis of hydrogels for the scaffolding or transplantation of cells, with an emphasis on the biological, mechanical, and structural properties of the resulting materials. In addition, we will discuss the distinct advantages conferred by self-assembly (compared with traditional covalent materials), and present some of the challenges and opportunities for the next generation of self-assembled biomaterials.
Collapse
Affiliation(s)
- Nicholas Stephanopoulos
- Institute for BioNanotechnology in Medicine, Feinberg School of Medicine, Northwestern University, 303 E. Superior St., Suite 11-131, Chicago, IL 60611, USA
| | - Julia H. Ortony
- Institute for BioNanotechnology in Medicine, Feinberg School of Medicine, Northwestern University, 303 E. Superior St., Suite 11-131, Chicago, IL 60611, USA
| | - Samuel I. Stupp
- Institute for BioNanotechnology in Medicine, Feinberg School of Medicine, Northwestern University, 303 E. Superior St., Suite 11-131, Chicago, IL 60611, USA
- Department of Chemistry, Northwestern University, 2220 Campus Drive, Evanston, IL 60208, USA
- Department of Materials Science and Engineering, Northwestern University, 2220 Campus Drive, Evanston, IL 60208, USA
| |
Collapse
|
46
|
Petkau-Milroy K, Uhlenheuer DA, Spiering AJH, Vekemans JAJM, Brunsveld L. Dynamic and bio-orthogonal protein assembly along a supramolecular polymer. Chem Sci 2013. [DOI: 10.1039/c3sc50891a] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
|
47
|
Tsutsumi H, Mihara H. Soft materials based on designed self-assembling peptides: from design to application. MOLECULAR BIOSYSTEMS 2013; 9:609-17. [DOI: 10.1039/c3mb25442a] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
|
48
|
Welsh DJ, Posocco P, Pricl S, Smith DK. Self-assembled multivalent RGD-peptide arrays – morphological control and integrin binding. Org Biomol Chem 2013; 11:3177-86. [DOI: 10.1039/c3ob00034f] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
|
49
|
Gouveia RM, Castelletto V, Alcock SG, Hamley IW, Connon CJ. Bioactive films produced from self-assembling peptide amphiphiles as versatile substrates for tuning cell adhesion and tissue architecture in serum-free conditions. J Mater Chem B 2013; 1:6157-6169. [DOI: 10.1039/c3tb21031f] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
50
|
Tian YF, Hudalla GA, Han H, Collier JH. Controllably degradable β-sheet nanofibers and gels from self-assembling depsipeptides. Biomater Sci 2013; 1. [PMID: 24224082 DOI: 10.1039/c3bm60161g] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Self-assembled peptide materials have received considerable interest for a range of applications, including 3D cell culture, tissue engineering, and the delivery of cells and drugs. One challenge in applying such materials within these areas has been the extreme stability of β-sheet fibrillized peptides, which are resistant to proteolysis, degradation, and turnover in biological environments. In this study, we designed self-assembling depsipeptides containing ester bonds within the peptide backbone. Beta-sheet fibrillized nanofibers were formed in physiologic conditions, and two of these nanofiber-forming depsipeptides produced hydrogels that degraded controllably over the course of days-to-weeks via ester hydrolysis. With HPLC, TEM, and oscillating rheometry, we show that the rate of hydrolysis can be controlled in a straightforward manner by specifying the amino acid residues surrounding the ester bond. In 3D cell cultures, depsipeptide gels softened over the course of several days and permitted considerably more proliferation and spreading of C3H10T1/2 pluripotent stem cells than non-degradable analogs. This approach now provides a reliable and reproducible means to soften or clear β-sheet fibrillized peptide materials from biological environments.
Collapse
Affiliation(s)
- Ye F Tian
- Department of Surgery, Biological Science Division, University of Chicago, Chicago, Illinois, United States ; Department of Biomedical Engineering, Illinois Institute of Technology, Chicago, Illinois, United States
| | | | | | | |
Collapse
|