1
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Sarma S, Sudarshan TR, Nguyen V, Robang AS, Xiao X, Le JV, Helmicki ME, Paravastu AK, Hall CK. Design of parallel 𝛽-sheet nanofibrils using Monte Carlo search, coarse-grained simulations, and experimental testing. Protein Sci 2024; 33:e5102. [PMID: 39037281 PMCID: PMC11261811 DOI: 10.1002/pro.5102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2023] [Revised: 06/20/2024] [Accepted: 06/22/2024] [Indexed: 07/23/2024]
Abstract
Peptide self-assembly into amyloid fibrils provides numerous applications in drug delivery and biomedical engineering applications. We augment our previously-established computational screening technique along with experimental biophysical characterization to discover 7-mer peptides that self-assemble into "parallel β-sheets", that is, β-sheets with N-terminus-to-C-terminus 𝛽-strand vectors oriented in parallel. To accomplish the desired β-strand organization, we applied the PepAD amino acid sequence design software to the Class-1 cross-β spine defined by Sawaya et al. This molecular configuration includes two layers of parallel β-sheets stacked such that N-terminus-to-C-terminus vectors are oriented antiparallel for molecules on adjacent β-sheets. The first cohort of PepAD identified peptides were examined for their fibrillation behavior in DMD/PRIME20 simulations, and the top performing sequence was selected as a prototype for a subsequent round of sequence refinement. The two rounds of design resulted in a library of eight 7-mer peptides. In DMD/PRIME20 simulations, five of these peptides spontaneously formed fibril-like structures with a predominantly parallel 𝛽-sheet arrangement, two formed fibril-like structure with <50% in parallel 𝛽-sheet arrangement and one remained a random coil. Among the eight candidate peptides produced by PepAD and DMD/PRIME20, five were synthesized and purified. All five assembled into amyloid fibrils composed of parallel β-sheets based on Fourier transform infrared spectroscopy, circular dichroism, electron microscopy, and thioflavin-T fluorescence spectroscopy measurements.
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Affiliation(s)
- Sudeep Sarma
- Department of Chemical and Biomolecular EngineeringNorth Carolina State UniversityRaleighNorth CarolinaUSA
| | - Tarunya Rao Sudarshan
- Department of Chemical and Biomolecular EngineeringGeorgia Institute of TechnologyAtlantaGeorgiaUSA
| | - Van Nguyen
- Department of Chemical and Biomolecular EngineeringNorth Carolina State UniversityRaleighNorth CarolinaUSA
| | - Alicia S. Robang
- Department of Chemical and Biomolecular EngineeringGeorgia Institute of TechnologyAtlantaGeorgiaUSA
| | - Xingqing Xiao
- Department of Chemical and Biomolecular EngineeringNorth Carolina State UniversityRaleighNorth CarolinaUSA
- Present address:
Department of Chemistry, School of Chemistry and Chemical EngineeringHainan UniversityHaikou CityHainan ProvincePeople's Republic of China
| | - Justin V. Le
- Department of Chemical and Biomolecular EngineeringGeorgia Institute of TechnologyAtlantaGeorgiaUSA
| | - Michael E. Helmicki
- Department of Chemical and Biomolecular EngineeringGeorgia Institute of TechnologyAtlantaGeorgiaUSA
| | - Anant K. Paravastu
- Department of Chemical and Biomolecular EngineeringGeorgia Institute of TechnologyAtlantaGeorgiaUSA
| | - Carol K. Hall
- Department of Chemical and Biomolecular EngineeringNorth Carolina State UniversityRaleighNorth CarolinaUSA
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2
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Singhal R, Sarangi MK, Rath G. Injectable Hydrogels: A Paradigm Tailored with Design, Characterization, and Multifaceted Approaches. Macromol Biosci 2024; 24:e2400049. [PMID: 38577905 DOI: 10.1002/mabi.202400049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2024] [Revised: 03/22/2024] [Indexed: 04/06/2024]
Abstract
Biomaterials denoting self-healing and versatile structural integrity are highly curious in the biomedicine segment. The injectable and/or printable 3D printing technology is explored in a few decades back, which can alter their dimensions temporarily under shear stress, showing potential healing/recovery tendency with patient-specific intervention toward the development of personalized medicine. Thus, self-healing injectable hydrogels (IHs) are stunning toward developing a paradigm for tissue regeneration. This review comprises the designing of IHs, rheological characterization and stability, several benchmark consequences for self-healing IHs, their translation into tissue regeneration of specific types, applications of IHs in biomedical such as anticancer and immunomodulation, wound healing and tissue/bone regeneration, antimicrobial potentials, drugs, gene and vaccine delivery, ocular delivery, 3D printing, cosmeceuticals, and photothermal therapy as well as in other allied avenues like agriculture, aerospace, electronic/electrical industries, coating approaches, patents associated with therapeutic/nontherapeutic avenues, and numerous futuristic challenges and solutions.
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Affiliation(s)
- Rishika Singhal
- Department of Pharmaceutics, Amity Institute of Pharmacy, Amity University, Malhaur Railway Station Road, Gomti Nagar, Lucknow, Uttar Pradesh, 201313, India
| | - Manoj Kumar Sarangi
- Department of Pharmaceutics, Amity Institute of Pharmacy, Amity University, Malhaur Railway Station Road, Gomti Nagar, Lucknow, Uttar Pradesh, 201313, India
| | - Goutam Rath
- Department of Pharmaceutics, School of Pharmaceutical Sciences, Siksha 'O' Anusandhan University, Bhubaneswar, Odisha, 751030, India
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3
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Najafi H, Farahavar G, Jafari M, Abolmaali SS, Azarpira N, Tamaddon AM. Harnessing the Potential of Self-Assembled Peptide Hydrogels for Neural Regeneration and Tissue Engineering. Macromol Biosci 2024; 24:e2300534. [PMID: 38547473 DOI: 10.1002/mabi.202300534] [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: 11/21/2023] [Revised: 03/04/2024] [Indexed: 04/11/2024]
Abstract
Spinal cord injury, traumatic brain injury, and neurosurgery procedures usually lead to neural tissue damage. Self-assembled peptide (SAP) hydrogels, a type of innovative hierarchical nanofiber-forming peptide sequences serving as hydrogelators, have emerged as a promising solution for repairing tissue defects and promoting neural tissue regeneration. SAPs possess numerous features, such as adaptable morphologies, biocompatibility, injectability, tunable mechanical stability, and mimicking of the native extracellular matrix. This review explores the capacity of neural cell regeneration and examines the critical aspects of SAPs in neuroregeneration, including their biochemical composition, topology, mechanical behavior, conductivity, and degradability. Additionally, it delves into the latest strategies involving SAPs for central or peripheral neural tissue engineering. Finally, the prospects of SAP hydrogel design and development in the realm of neuroregeneration are discussed.
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Affiliation(s)
- Haniyeh Najafi
- Pharmaceutical Nanotechnology Department, Shiraz University of Medical Sciences, Shiraz, 71468-64685, Iran
| | - Ghazal Farahavar
- Center for Nanotechnology in Drug Delivery, Shiraz University of Medical Sciences, Shiraz, 71468-64685, Iran
| | - Mahboobeh Jafari
- Center for Nanotechnology in Drug Delivery, Shiraz University of Medical Sciences, Shiraz, 71468-64685, Iran
| | - Samira Sadat Abolmaali
- Pharmaceutical Nanotechnology Department, Shiraz University of Medical Sciences, Shiraz, 71468-64685, Iran
- Center for Nanotechnology in Drug Delivery, Shiraz University of Medical Sciences, Shiraz, 71468-64685, Iran
| | - Negar Azarpira
- Transplant Research Center, Shiraz University of Medical Sciences, Shiraz, 71937-11351, Iran
| | - Ali Mohammad Tamaddon
- Pharmaceutical Nanotechnology Department, Shiraz University of Medical Sciences, Shiraz, 71468-64685, Iran
- Center for Nanotechnology in Drug Delivery, Shiraz University of Medical Sciences, Shiraz, 71468-64685, Iran
- Department of Pharmaceutics, Shiraz University of Medical Sciences, Shiraz, 71468-64685, Iran
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4
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Tavakkoli Fard S, Thongrom B, Achazi K, Ma G, Haag R, Tzschucke CC. Photo-responsive hydrogels based on a ruthenium complex: synthesis and degradation. SOFT MATTER 2024; 20:1301-1308. [PMID: 38240363 DOI: 10.1039/d3sm01232h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/08/2024]
Abstract
We report the synthesis of a photo responsive metallo-hydrogel based on a ruthenium(II) complex as a functional cross-linker. This metal complex contains reactive 4AAMP (= 4-(acrylamidomethyl)pyridine) ligands, which can be cleaved by light-induced ligand substitution. Ru[(bpy)2(4AAMP)2] cross-links 4-arm-PEG-SH macromonomers by thia-Michael-addition to the photocleavable 4AAMP ligand for the preparation of the hydrogel. Irradiation with green light at 529 nm leads to photodegradation of the metallo-hydrogel due to the ligand dissociation, which can be adjusted by adjusting the Ru[(bpy)2(4AAMP)2] concentration. The ligand substitution forming [Ru(bpy)2(L)2]2+ (L = H2O and CH3CN) can be monitored by 1H NMR spectroscopy and UV-visible absorption. The control of degradation by light irradiation plays a significant role in modulating the elasticity and stiffness of the light sensitive metallo-hydrogel network. The photo-responsive hydrogel is a viable substrate for cell cultures.
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Affiliation(s)
- Sara Tavakkoli Fard
- Institut für Chemie und Biochemie, Freie Universität Berlin, Takustraße 3, 14195 Berlin, Germany.
| | - Boonya Thongrom
- Institut für Chemie und Biochemie, Freie Universität Berlin, Takustraße 3, 14195 Berlin, Germany.
| | - Katharina Achazi
- Research Building SupraFAB, Freie Universität Berlin, 14195 Berlin, Germany
| | - Guoxin Ma
- Institut für Chemie und Biochemie, Freie Universität Berlin, Takustraße 3, 14195 Berlin, Germany.
| | - Rainer Haag
- Institut für Chemie und Biochemie, Freie Universität Berlin, Takustraße 3, 14195 Berlin, Germany.
| | - C Christoph Tzschucke
- Institut für Chemie und Biochemie, Freie Universität Berlin, Takustraße 3, 14195 Berlin, Germany.
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5
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Mahmoudi N, Mohamed E, Dehnavi SS, Aguilar LMC, Harvey AR, Parish CL, Williams RJ, Nisbet DR. Calming the Nerves via the Immune Instructive Physiochemical Properties of Self-Assembling Peptide Hydrogels. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2303707. [PMID: 38030559 PMCID: PMC10837390 DOI: 10.1002/advs.202303707] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Revised: 10/22/2023] [Indexed: 12/01/2023]
Abstract
Current therapies for the devastating damage caused by traumatic brain injuries (TBI) are limited. This is in part due to poor drug efficacy to modulate neuroinflammation, angiogenesis and/or promoting neuroprotection and is the combined result of challenges in getting drugs across the blood brain barrier, in a targeted approach. The negative impact of the injured extracellular matrix (ECM) has been identified as a factor in restricting post-injury plasticity of residual neurons and is shown to reduce the functional integration of grafted cells. Therefore, new strategies are needed to manipulate the extracellular environment at the subacute phase to enhance brain regeneration. In this review, potential strategies are to be discussed for the treatment of TBI by using self-assembling peptide (SAP) hydrogels, fabricated via the rational design of supramolecular peptide scaffolds, as an artificial ECM which under the appropriate conditions yields a supramolecular hydrogel. Sequence selection of the peptides allows the tuning of these hydrogels' physical and biochemical properties such as charge, hydrophobicity, cell adhesiveness, stiffness, factor presentation, degradation profile and responsiveness to (external) stimuli. This review aims to facilitate the development of more intelligent biomaterials in the future to satisfy the parameters, requirements, and opportunities for the effective treatment of TBI.
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Affiliation(s)
- Negar Mahmoudi
- Laboratory of Advanced Biomaterials, the John Curtin School of Medical Research, Australian National University, Canberra, ACT, 2601, Australia
- ANU College of Engineering & Computer Science, Australian National University, Canberra, ACT, 2601, Australia
- The Graeme Clark Institute, The University of Melbourne, Melbourne, VIC, 3010, Australia
- Department of Biomedical Engineering, Faculty of Engineering and Information Technology, The University of Melbourne, Melbourne, VIC, 3010, Australia
| | - Elmira Mohamed
- Laboratory of Advanced Biomaterials, the John Curtin School of Medical Research, Australian National University, Canberra, ACT, 2601, Australia
| | - Shiva Soltani Dehnavi
- Laboratory of Advanced Biomaterials, the John Curtin School of Medical Research, Australian National University, Canberra, ACT, 2601, Australia
- ANU College of Engineering & Computer Science, Australian National University, Canberra, ACT, 2601, Australia
| | - Lilith M Caballero Aguilar
- Laboratory of Advanced Biomaterials, the John Curtin School of Medical Research, Australian National University, Canberra, ACT, 2601, Australia
- The Graeme Clark Institute, The University of Melbourne, Melbourne, VIC, 3010, Australia
- Department of Biomedical Engineering, Faculty of Engineering and Information Technology, The University of Melbourne, Melbourne, VIC, 3010, Australia
| | - Alan R Harvey
- School of Human Sciences, The University of Western Australia, and Perron Institute for Neurological and Translational Science, Perth, WA, 6009, Australia
| | - Clare L Parish
- The Florey Institute of Neuroscience and Mental Health, The University of Melbourne, Parkville, Melbourne, VIC, 3010, Australia
| | - Richard J Williams
- IMPACT, School of Medicine, Deakin University, Geelong, VIC, 3217, Australia
| | - David R Nisbet
- Laboratory of Advanced Biomaterials, the John Curtin School of Medical Research, Australian National University, Canberra, ACT, 2601, Australia
- The Graeme Clark Institute, The University of Melbourne, Melbourne, VIC, 3010, Australia
- Department of Biomedical Engineering, Faculty of Engineering and Information Technology, The University of Melbourne, Melbourne, VIC, 3010, Australia
- Melbourne Medical School, Faculty of Medicine, Dentistry and Health Science, The University of Melbourne, Melbourne, VIC, 3010, Australia
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6
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Sedighi M, Shrestha N, Mahmoudi Z, Khademi Z, Ghasempour A, Dehghan H, Talebi SF, Toolabi M, Préat V, Chen B, Guo X, Shahbazi MA. Multifunctional Self-Assembled Peptide Hydrogels for Biomedical Applications. Polymers (Basel) 2023; 15:polym15051160. [PMID: 36904404 PMCID: PMC10007692 DOI: 10.3390/polym15051160] [Citation(s) in RCA: 27] [Impact Index Per Article: 27.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Revised: 02/21/2023] [Accepted: 02/22/2023] [Indexed: 03/02/2023] Open
Abstract
Self-assembly is a growth mechanism in nature to apply local interactions forming a minimum energy structure. Currently, self-assembled materials are considered for biomedical applications due to their pleasant features, including scalability, versatility, simplicity, and inexpensiveness. Self-assembled peptides can be applied to design and fabricate different structures, such as micelles, hydrogels, and vesicles, by diverse physical interactions between specific building blocks. Among them, bioactivity, biocompatibility, and biodegradability of peptide hydrogels have introduced them as versatile platforms in biomedical applications, such as drug delivery, tissue engineering, biosensing, and treating different diseases. Moreover, peptides are capable of mimicking the microenvironment of natural tissues and responding to internal and external stimuli for triggered drug release. In the current review, the unique characteristics of peptide hydrogels and recent advances in their design, fabrication, as well as chemical, physical, and biological properties are presented. Additionally, recent developments of these biomaterials are discussed with a particular focus on their biomedical applications in targeted drug delivery and gene delivery, stem cell therapy, cancer therapy and immune regulation, bioimaging, and regenerative medicine.
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Affiliation(s)
- Mahsa Sedighi
- Department of Pharmaceutics and Nanotechnology, School of Pharmacy, Birjand University of Medical Sciences, Birjand 9717853076, Iran
- Cellular and Molecular Research Center, Birjand University of Medical Sciences, Birjand 9717853076, Iran
| | - Neha Shrestha
- Advanced Drug Delivery and Biomaterials, Louvain Drug Research Institute, Université Catholique de Louvain, 1200 Brussels, Belgium
- Department of Biomedicine and Translational Research, Research Institute for Bioscience and Biotechnology, Kathmandu P.O. Box 7731, Nepal
| | - Zahra Mahmoudi
- Research Center for Molecular Medicine, Hamadan University of Medical Sciences, Hamadan 6517838636, Iran
| | - Zahra Khademi
- Department of Pharmaceutical Biotechnology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad 9177948954, Iran
| | - Alireza Ghasempour
- Student Research Committee, Birjand University of Medical Sciences, Birjand 9717853076, Iran
| | - Hamideh Dehghan
- Student Research Committee, Birjand University of Medical Sciences, Birjand 9717853076, Iran
| | - Seyedeh Fahimeh Talebi
- Student Research Committee, Birjand University of Medical Sciences, Birjand 9717853076, Iran
| | - Maryam Toolabi
- Department of Biomedical Engineering, University Medical Center Groningen, University of Groningen, Antonius Deusinglaan 1, 9713 AV Groningen, The Netherlands
| | - Véronique Préat
- Advanced Drug Delivery and Biomaterials, Louvain Drug Research Institute, Université Catholique de Louvain, 1200 Brussels, Belgium
| | - Bozhi Chen
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China
- Beijing Laboratory of Biomedical Materials, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Xindong Guo
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China
- Beijing Laboratory of Biomedical Materials, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
- Correspondence: (X.G.); (M.-A.S.)
| | - Mohammad-Ali Shahbazi
- Department of Biomedical Engineering, University Medical Center Groningen, University of Groningen, Antonius Deusinglaan 1, 9713 AV Groningen, The Netherlands
- W.J. Kolff Institute for Biomedical Engineering and Materials Science, University of Groningen, Antonius Deusinglaan 1, 9713 AV Groningen, The Netherlands
- Correspondence: (X.G.); (M.-A.S.)
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7
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Flynn J, Culebras M, Collins MN, Hudson SP. The impact of varying dextran oxidation levels on the inhibitory activity of a bacteriocin loaded injectable hydrogel. Drug Deliv Transl Res 2023; 13:308-319. [PMID: 35851672 PMCID: PMC9726672 DOI: 10.1007/s13346-022-01201-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/14/2022] [Indexed: 12/14/2022]
Abstract
In the design of injectable antimicrobial dextran-alginate hydrogels, the impact of dextran oxidation and its subsequent changes in molecular weight and the incorporation of glycol chitosan on (i) gel mechanical strength and (ii) the inhibitory profile of an encapsulated bacteriocin, nisin A, are explored. As the degree of oxidation increases, the weight average molecular mass of the dextran decreases, resulting in a reduction in elastic modulus of the gels made. Upon encapsulation of the bacteriocin nisin into the gels, varying the dextran mass/oxidation level allowed the antimicrobial activity against S. aureus to be controlled. Gels made with a higher molecular weight (less oxidised) dextran show a higher initial degree of inhibition while those made with a lower molecular weight (more oxidised) dextran exhibit a more sustained inhibition. Incorporating glycol chitosan into gels composed of dextran with higher masses significantly increased their storage modulus and the gels' initial degree of inhibition.
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Affiliation(s)
- James Flynn
- Department of Chemical Sciences, Bernal Institute, SSPC – The SFI Pharmaceutical Research Centre, University of Limerick, Limerick, Ireland
| | - Mario Culebras
- School of Engineering, Stokes Laboratories, Bernal Institute, University of Limerick, Limerick, Ireland
| | - Maurice N. Collins
- School of Engineering, Stokes Laboratories, Bernal Institute, University of Limerick, Limerick, Ireland ,Health Research Institute and AMBER, University of Limerick, Limerick, Ireland
| | - Sarah P. Hudson
- Department of Chemical Sciences, Bernal Institute, SSPC – The SFI Pharmaceutical Research Centre, University of Limerick, Limerick, Ireland
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8
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Koh K, Wang JK, Chen JXY, Hiew SH, Cheng HS, Gabryelczyk B, Vos MIG, Yip YS, Chen L, Sobota RM, Chua DKK, Tan NS, Tay CY, Miserez A. Squid Suckerin-Spider Silk Fusion Protein Hydrogel for Delivery of Mesenchymal Stem Cell Secretome to Chronic Wounds. Adv Healthc Mater 2023; 12:e2201900. [PMID: 36177679 DOI: 10.1002/adhm.202201900] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Revised: 09/19/2022] [Indexed: 02/03/2023]
Abstract
Chronic wounds are non-healing wounds characterized by a prolonged inflammation phase. Excessive inflammation leads to elevated protease levels and consequently to a decrease in growth factors at wound sites. Stem cell secretome therapy has been identified as a treatment strategy to modulate the microenvironment of chronic wounds via supplementation with anti-inflammatory/growth factors. However, there is a need to develop better secretome delivery systems that are able to encapsulate the secretome without denaturation, in a sustained manner, and that are fully biocompatible. To address this gap, a recombinant squid suckerin-spider silk fusion protein is developed with cell-adhesion motifs capable of thermal gelation at physiological temperatures to form hydrogels for encapsulation and subsequent release of the stem cell secretome. Freeze-thaw treatment of the protein hydrogel results in a modified porous cryogel that maintains slow degradation and sustained secretome release. Chronic wounds of diabetic mice treated with the secretome-laden cryogel display increased wound closure, presence of endothelial cells, granulation wound tissue thickness, and reduced inflammation with no fibrotic scar formation. Overall, these in vivo indicators of wound healing demonstrate that the fusion protein hydrogel displays remarkable potential as a delivery system for secretome-assisted chronic wound healing.
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Affiliation(s)
- Kenrick Koh
- NTU Institute for Health Technologies, Interdisciplinary Graduate Programme, Nanyang Technological University, Singapore, 637335, Singapore.,Center for Sustainable Materials (SusMat), School of Materials Science and Engineering, Nanyang Technological University, Singapore, 637553, Singapore
| | - Jun Kit Wang
- Center for Sustainable Materials (SusMat), School of Materials Science and Engineering, Nanyang Technological University, Singapore, 637553, Singapore
| | - James Xiao Yuan Chen
- Center for Sustainable Materials (SusMat), School of Materials Science and Engineering, Nanyang Technological University, Singapore, 637553, Singapore
| | - Shu Hui Hiew
- Center for Sustainable Materials (SusMat), School of Materials Science and Engineering, Nanyang Technological University, Singapore, 637553, Singapore
| | - Hong Sheng Cheng
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore, 308232, Singapore
| | - Bartosz Gabryelczyk
- Center for Sustainable Materials (SusMat), School of Materials Science and Engineering, Nanyang Technological University, Singapore, 637553, Singapore
| | - Marcus Ivan Gerard Vos
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore, 308232, Singapore
| | - Yun Sheng Yip
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore, 308232, Singapore
| | - Liyan Chen
- Functional Proteomics Laboratory, SingMass National Laboratory, Institute of Molecular and Cell Biology, Agency for Science, Technology and Research (A*STAR), Singapore, 138673, Singapore.,Bioinformatics Institute, Agency for Science, Technology and Research (A*STAR), Singapore, 138671, Singapore
| | - Radoslaw M Sobota
- Functional Proteomics Laboratory, SingMass National Laboratory, Institute of Molecular and Cell Biology, Agency for Science, Technology and Research (A*STAR), Singapore, 138673, Singapore.,Bioinformatics Institute, Agency for Science, Technology and Research (A*STAR), Singapore, 138671, Singapore
| | - Damian Kang Keat Chua
- School of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore, 637459, Singapore
| | - Nguan Soon Tan
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore, 308232, Singapore.,School of Biological Sciences, Nanyang Technological University, Singapore, 637551, Singapore
| | - Chor Yong Tay
- Center for Sustainable Materials (SusMat), School of Materials Science and Engineering, Nanyang Technological University, Singapore, 637553, Singapore.,School of Biological Sciences, Nanyang Technological University, Singapore, 637551, Singapore
| | - Ali Miserez
- Center for Sustainable Materials (SusMat), School of Materials Science and Engineering, Nanyang Technological University, Singapore, 637553, Singapore.,School of Biological Sciences, Nanyang Technological University, Singapore, 637551, Singapore
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9
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Sperle K, Pochan DJ, Langhans SA. 3D Hydrogel Cultures for High-Throughput Drug Discovery. Methods Mol Biol 2023; 2614:369-381. [PMID: 36587136 PMCID: PMC10786336 DOI: 10.1007/978-1-0716-2914-7_22] [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] [Indexed: 01/02/2023]
Abstract
Our increased understanding of how a cell's microenvironment influences its behavior has fueled an interest in three-dimensional (3D) cell cultures for drug discovery. Particularly, scaffold-based 3D cultures are expected to recapitulate in vivo tissue stiffness and extracellular matrix composition more accurately than standard two-dimensional (2D) monolayer cultures. Here we present a 3D hydrogel cell culture setup suitable for automated screening with standard high-throughput screening (HTS) liquid handling equipment commonly found in a drug discovery laboratory. Further, we describe the steps required to validate the assay system for compound screening.
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Affiliation(s)
- Karen Sperle
- Nemours Biomedical Research, Nemours Children's Hospital - Delaware, Wilmington, DE, USA
| | - Darrin J Pochan
- Department of Materials Science and Engineering, University of Delaware, Newark, DE, USA
| | - Sigrid A Langhans
- Nemours Biomedical Research, Nemours Children's Hospital - Delaware, Wilmington, DE, USA.
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10
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Xiao X, Robang AS, Sarma S, Le JV, Helmicki ME, Lambert MJ, Guerrero-Ferreira R, Arboleda-Echavarria J, Paravastu AK, Hall CK. Sequence patterns and signatures: Computational and experimental discovery of amyloid-forming peptides. PNAS NEXUS 2022; 1:pgac263. [PMID: 36712347 PMCID: PMC9802472 DOI: 10.1093/pnasnexus/pgac263] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Accepted: 11/22/2022] [Indexed: 11/27/2022]
Abstract
Screening amino acid sequence space via experiments to discover peptides that self-assemble into amyloid fibrils is challenging. We have developed a computational peptide assembly design (PepAD) algorithm that enables the discovery of amyloid-forming peptides. Discontinuous molecular dynamics (DMD) simulation with the PRIME20 force field combined with the FoldAmyloid tool is used to examine the fibrilization kinetics of PepAD-generated peptides. PepAD screening of ∼10,000 7-mer peptides resulted in twelve top-scoring peptides with two distinct hydration properties. Our studies revealed that eight of the twelve in silico discovered peptides spontaneously form amyloid fibrils in the DMD simulations and that all eight have at least five residues that the FoldAmyloid tool classifies as being aggregation-prone. Based on these observations, we re-examined the PepAD-generated peptides in the sequence pool returned by PepAD and extracted five sequence patterns as well as associated sequence signatures for the 7-mer amyloid-forming peptides. Experimental results from Fourier transform infrared spectroscopy (FTIR), thioflavin T (ThT) fluorescence, circular dichroism (CD), and transmission electron microscopy (TEM) indicate that all the peptides predicted to assemble in silico assemble into antiparallel β-sheet nanofibers in a concentration-dependent manner. This is the first attempt to use a computational approach to search for amyloid-forming peptides based on customized settings. Our efforts facilitate the identification of β-sheet-based self-assembling peptides, and contribute insights towards answering a fundamental scientific question: "What does it take, sequence-wise, for a peptide to self-assemble?".
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Affiliation(s)
| | | | | | - Justin V Le
- Department of Chemical and Biomolecular Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA
| | - Michael E Helmicki
- Department of Chemical and Biomolecular Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA
| | - Matthew J Lambert
- Department of Chemical and Biomolecular Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA
| | - Ricardo Guerrero-Ferreira
- Robert P. Apkarian Integrated Electron Microscopy Core, Emory University School of Medicine, Atlanta, GA 30322, USA
| | - Johana Arboleda-Echavarria
- Robert P. Apkarian Integrated Electron Microscopy Core, Emory University School of Medicine, Atlanta, GA 30322, USA
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11
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Chen J, Xu M, Wang L, Li T, Li Z, Wang T, Li P. Converting lysozyme to hydrogel: A multifunctional wound dressing that is more than antibacterial. Colloids Surf B Biointerfaces 2022; 219:112854. [PMID: 36154996 DOI: 10.1016/j.colsurfb.2022.112854] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2022] [Revised: 08/27/2022] [Accepted: 09/13/2022] [Indexed: 11/19/2022]
Abstract
Wounds are usually irregular in shapes, and accompanied with a series of disorders such as hemorrhage and bacteria contamination. Here, we report a multifunctional hydrogel prepared by phase-transited lysozyme (PTL), which presents antimicrobial, injectable, self-healing, tissue adhesive, hemostatic and biodegradable properties that fit the requirements of wound treatment. The lysozyme was unfolded under the action of tris(2-carboxyethyl)phosphine (TCEP), and then self-assembled into a hydrogel (PTLG). The phase transition expanded the antibacterial spectrum of lysozyme, PTLG effectively killed both Gram-positive bacteria (Staphylococcus aureus, Staphylococcus epidermidis) and Gram-negative bacteria (Escherichia coli, Acinetobacter baumannii) on contact. This dynamically cross-linked hydrogel exhibited injectable and self-healing abilities, and was capable of adapting to various wound morphologies. The tissue-adhesive nature derived from phase-transition, endowed PTLG with hemostatic effect. Meanwhile, PTLG exhibited biocompatibility towards mammalian cells. Furthermore, its anti-infective ability in vivo was verified in a mouse subcutaneous infection model, more than 98 % of S. epidermidis was reduced under PTLG injection. And PTLG could be biodegraded within four weeks in mice body. Overall, the proposed PTLG is a promising multifunctional dressing material that could accommodate the various demands of complex and deep wounds.
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Affiliation(s)
- Jingjie Chen
- Frontiers Science Center for Flexible Electronics (FSCFE), Xi'an Institute of Flexible Electronics (IFE) & Xi'an Institute of Biomedical Materials and Engineering (IBME), Northwestern Polytechnical University (NPU), 127 West Youyi Road, Xi'an, Shaanxi 710072, PR China
| | - Miao Xu
- Frontiers Science Center for Flexible Electronics (FSCFE), Xi'an Institute of Flexible Electronics (IFE) & Xi'an Institute of Biomedical Materials and Engineering (IBME), Northwestern Polytechnical University (NPU), 127 West Youyi Road, Xi'an, Shaanxi 710072, PR China; Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University, Nanjing 211816, PR China
| | - Lei Wang
- Frontiers Science Center for Flexible Electronics (FSCFE), Xi'an Institute of Flexible Electronics (IFE) & Xi'an Institute of Biomedical Materials and Engineering (IBME), Northwestern Polytechnical University (NPU), 127 West Youyi Road, Xi'an, Shaanxi 710072, PR China
| | - Tian Li
- Frontiers Science Center for Flexible Electronics (FSCFE), Xi'an Institute of Flexible Electronics (IFE) & Xi'an Institute of Biomedical Materials and Engineering (IBME), Northwestern Polytechnical University (NPU), 127 West Youyi Road, Xi'an, Shaanxi 710072, PR China
| | - Ziyue Li
- Frontiers Science Center for Flexible Electronics (FSCFE), Xi'an Institute of Flexible Electronics (IFE) & Xi'an Institute of Biomedical Materials and Engineering (IBME), Northwestern Polytechnical University (NPU), 127 West Youyi Road, Xi'an, Shaanxi 710072, PR China; Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University, Nanjing 211816, PR China
| | - Tengjiao Wang
- Frontiers Science Center for Flexible Electronics (FSCFE), Xi'an Institute of Flexible Electronics (IFE) & Xi'an Institute of Biomedical Materials and Engineering (IBME), Northwestern Polytechnical University (NPU), 127 West Youyi Road, Xi'an, Shaanxi 710072, PR China
| | - Peng Li
- Frontiers Science Center for Flexible Electronics (FSCFE), Xi'an Institute of Flexible Electronics (IFE) & Xi'an Institute of Biomedical Materials and Engineering (IBME), Northwestern Polytechnical University (NPU), 127 West Youyi Road, Xi'an, Shaanxi 710072, PR China; Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University, Nanjing 211816, PR China.
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12
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Cariello M, Dietrich B, Thomson L, Gauci V, Boyer A, Sproules S, Cooke G, Seddon A, Adams DJ. A Self‐Assembling Flavin for Visible Photooxidation. Chemistry 2022; 28:e202201725. [PMID: 35722972 PMCID: PMC9541220 DOI: 10.1002/chem.202201725] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Indexed: 11/06/2022]
Abstract
A new flavin‐based gelator is reported which forms micellar structures at high pH and gels at low pH. This flavin can be used for the photooxidation of thiols under visible light, with the catalytic efficiency being linked to the self‐assembled structures present.
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Affiliation(s)
| | - Bart Dietrich
- School of Chemistry University of Glasgow Glasgow G12 8QQ UK
| | - Lisa Thomson
- School of Chemistry University of Glasgow Glasgow G12 8QQ UK
| | - Valentina Gauci
- School of Chemistry University of Glasgow Glasgow G12 8QQ UK
| | - Alistair Boyer
- School of Chemistry University of Glasgow Glasgow G12 8QQ UK
| | | | - Graeme Cooke
- School of Chemistry University of Glasgow Glasgow G12 8QQ UK
| | - Annela Seddon
- School of Physics, HH Wills Physics Laboratory University of Bristol Tyndall Avenue Bristol BS8 1TL UK
| | - Dave J. Adams
- School of Chemistry University of Glasgow Glasgow G12 8QQ UK
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13
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Almawash S, Osman SK, Mustafa G, El Hamd MA. Current and Future Prospective of Injectable Hydrogels—Design Challenges and Limitations. Pharmaceuticals (Basel) 2022; 15:ph15030371. [PMID: 35337169 PMCID: PMC8948902 DOI: 10.3390/ph15030371] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2022] [Revised: 03/04/2022] [Accepted: 03/08/2022] [Indexed: 02/04/2023] Open
Abstract
Injectable hydrogels (IHs) are smart biomaterials and are the most widely investigated and versatile technologies, which can be either implanted or inserted into living bodies with minimal invasion. Their unique features, tunable structure and stimuli-responsive biodegradation properties make these IHs promising in many biomedical applications, including tissue engineering, regenerative medicines, implants, drug/protein/gene delivery, cancer treatment, aesthetic corrections and spinal fusions. In this review, we comprehensively analyze the current development of several important types of IHs, including all those that have received FDA approval, are under clinical trials or are available commercially on the market. We also analyze the structural chemistry, synthesis, bonding, chemical/physical crosslinking and responsive release in association with current prospective research. Finally, we also review IHs’ associated future prospects, hurdles, limitations and challenges in their development, fabrication, synthesis, in situ applications and regulatory affairs.
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Affiliation(s)
- Saud Almawash
- Department of Pharmaceutical Sciences, College of Pharmacy, Shaqra University, Shaqra 11961, Saudi Arabia; (G.M.); (M.A.E.H.)
- Correspondence: ; Tel.: +966-56-555-2648
| | - Shaaban K. Osman
- Department of Pharmaceutics and Pharmaceutical Technology, Faculty of Pharmacy, Al-Azhar University, Assiut 71524, Egypt;
| | - Gulam Mustafa
- Department of Pharmaceutical Sciences, College of Pharmacy, Shaqra University, Shaqra 11961, Saudi Arabia; (G.M.); (M.A.E.H.)
| | - Mohamed A. El Hamd
- Department of Pharmaceutical Sciences, College of Pharmacy, Shaqra University, Shaqra 11961, Saudi Arabia; (G.M.); (M.A.E.H.)
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, South Valley University, Qena 83523, Egypt
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14
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Hiew SH, Wang JK, Koh K, Yang H, Bacha A, Lin J, Yip YS, Vos MIG, Chen L, Sobota RM, Tan NS, Tay CY, Miserez A. Bioinspired short peptide hydrogel for versatile encapsulation and controlled release of growth factor therapeutics. Acta Biomater 2021; 136:111-123. [PMID: 34551327 DOI: 10.1016/j.actbio.2021.09.023] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Revised: 09/14/2021] [Accepted: 09/14/2021] [Indexed: 12/17/2022]
Abstract
A short bioinspired octapeptide, GV8, can self-assemble under mild conditions into biodegradable supramolecular physical hydrogels with high storage modulus and good biocompatibility. GV8 hydrogels can encapsulate both single or multiple macromolecular protein-based therapeutics in a simple one-pot formulation manner, making it a promising candidate to address challenges faced by existing synthetic polymer or peptide hydrogels with complex gelation and drug-encapsulation processes. Alongside its versatility, the hydrogel exhibits concentration-dependent storage modulus and controlled drug-release action. We demonstrate that GV8 hydrogels loaded with adipose-derived mesenchymal stem cells (ADMSC) secretome remain mechanically robust, and exhibit promising potential for wound healing applications by preserving secretome activity while maintaining a constant supply of ADMSC secretome to promote epithelial cell migration. Overall, our work highlights the potential of GV8 peptide hydrogel as a versatile and safe carrier for encapsulation and delivery of macromolecular therapeutics. STATEMENT OF SIGNIFICANCE: Supramolecular peptide hydrogels are a popular choice for protein-based macromolecular therapeutics delivery; however, despite the development of abundant hydrogel systems, several challenges limit their adaptability and practical applications. GV8 short peptide hydrogel circumvents these drawbacks and demonstrates the ability to function as a versatile growth factor (GF) encapsulant. It can encapsulate precise concentrations of complex adipose-derived mesenchymal stem cells secretome mixtures with a one-pot formulation approach and perform controlled release of GFs with preserved activity without compromising the self-assembly and mechanical properties of the hydrogel's supramolecular network. The significance of GV8 hydrogel lies in its gelation simplicity and versatility to encapsulate and deliver macromolecular therapeutics, thus representing a promising biomaterial for regenerative medicine applications.
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Affiliation(s)
- Shu Hui Hiew
- Center for Sustainable Materials (SusMat), School of Materials Science and Engineering, Nanyang Technological University, Singapore, 639798.
| | - Jun Kit Wang
- Center for Sustainable Materials (SusMat), School of Materials Science and Engineering, Nanyang Technological University, Singapore, 639798
| | - Kenrick Koh
- Center for Sustainable Materials (SusMat), School of Materials Science and Engineering, Nanyang Technological University, Singapore, 639798; NTU Institute for Health Technologies, Interdisciplinary Graduate Programme, Nanyang Technological University, Singapore, 637335
| | - Haibo Yang
- Center for Sustainable Materials (SusMat), School of Materials Science and Engineering, Nanyang Technological University, Singapore, 639798
| | - Abbas Bacha
- Center for Sustainable Materials (SusMat), School of Materials Science and Engineering, Nanyang Technological University, Singapore, 639798
| | - Junquan Lin
- Center for Sustainable Materials (SusMat), School of Materials Science and Engineering, Nanyang Technological University, Singapore, 639798
| | - Yun Sheng Yip
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore, 308232
| | | | - Liyan Chen
- Functional Proteomics Laboratory, SingMass National Laboratory, Institute of Molecular and Cell Biology, Agency for Science, Technology and Research (A(∗)STAR), Singapore, 138673
| | - Radoslaw M Sobota
- Functional Proteomics Laboratory, SingMass National Laboratory, Institute of Molecular and Cell Biology, Agency for Science, Technology and Research (A(∗)STAR), Singapore, 138673; Bioinformatics Institute, Agency for Science, Technology and Research (A(∗)STAR), Singapore, 138671
| | - Nguan Soon Tan
- School of Biological Sciences, Nanyang Technological University, Singapore, 637551; Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore, 308232
| | - Chor Yong Tay
- Center for Sustainable Materials (SusMat), School of Materials Science and Engineering, Nanyang Technological University, Singapore, 639798; School of Biological Sciences, Nanyang Technological University, Singapore, 637551; Environmental Chemistry and Materials Centre, Nanyang Environment & Water Research Institute, Singapore, 637141.
| | - Ali Miserez
- Center for Sustainable Materials (SusMat), School of Materials Science and Engineering, Nanyang Technological University, Singapore, 639798; School of Biological Sciences, Nanyang Technological University, Singapore, 637551.
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15
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Peressotti S, Koehl GE, Goding JA, Green RA. Self-Assembling Hydrogel Structures for Neural Tissue Repair. ACS Biomater Sci Eng 2021; 7:4136-4163. [PMID: 33780230 PMCID: PMC8441975 DOI: 10.1021/acsbiomaterials.1c00030] [Citation(s) in RCA: 47] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2021] [Accepted: 03/10/2021] [Indexed: 12/12/2022]
Abstract
Hydrogel materials have been employed as biological scaffolds for tissue regeneration across a wide range of applications. Their versatility and biomimetic properties make them an optimal choice for treating the complex and delicate milieu of neural tissue damage. Aside from finely tailored hydrogel properties, which aim to mimic healthy physiological tissue, a minimally invasive delivery method is essential to prevent off-target and surgery-related complications. The specific class of injectable hydrogels termed self-assembling peptides (SAPs), provide an ideal combination of in situ polymerization combined with versatility for biofunctionlization, tunable physicochemical properties, and high cytocompatibility. This review identifies design criteria for neural scaffolds based upon key cellular interactions with the neural extracellular matrix (ECM), with emphasis on aspects that are reproducible in a biomaterial environment. Examples of the most recent SAPs and modification methods are presented, with a focus on biological, mechanical, and topographical cues. Furthermore, SAP electrical properties and methods to provide appropriate electrical and electrochemical cues are widely discussed, in light of the endogenous electrical activity of neural tissue as well as the clinical effectiveness of stimulation treatments. Recent applications of SAP materials in neural repair and electrical stimulation therapies are highlighted, identifying research gaps in the field of hydrogels for neural regeneration.
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Affiliation(s)
- Sofia Peressotti
- Department
of Bioengineering and Centre for Neurotechnology, Imperial College London, London SW72AS, United Kingdom
| | - Gillian E. Koehl
- Department
of Bioengineering and Centre for Neurotechnology, Imperial College London, London SW72AS, United Kingdom
| | - Josef A. Goding
- Department
of Bioengineering and Centre for Neurotechnology, Imperial College London, London SW72AS, United Kingdom
| | - Rylie A. Green
- Department
of Bioengineering and Centre for Neurotechnology, Imperial College London, London SW72AS, United Kingdom
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16
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Light K, Karboune S. Emulsion, hydrogel and emulgel systems and novel applications in cannabinoid delivery: a review. Crit Rev Food Sci Nutr 2021; 62:8199-8229. [PMID: 34024201 DOI: 10.1080/10408398.2021.1926903] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Emulsions, hydrogels and emulgels have attracted a high interest as tools for the delivery of poorly soluble hydrophobic nutraceuticals by enhancing their stability and bioavailability. This review provides an overview of these delivery systems, their unique qualities and their interactions with the human gastrointestinal system. The modulation of the various delivery systems to enhance the bioavailability and modify the release profile of bioactive encapsulates is highlighted. The application of the delivery systems in the delivery of cannabinoids is also discussed. With the recent increase of cannabis legalization across North America, there is much interest in developing cannabis edibles which can provide a consistent dose of cannabinoids per portion with a rapid time of onset. Indeed, the long time of onset of psychoactive effects and varied metabolic responses to these products result in a high risk of severe intoxication due to overconsumption. Sophisticated emulsion or hydrogel-based delivery systems are one potential tool to achieve this goal. To date, there is a lack of evidence linking specific classes of delivery systems with their pharmacokinetic profiles in humans. More research is needed to directly compare different classes of delivery systems for the gastrointestinal delivery of cannabinoids.
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Affiliation(s)
- Kelly Light
- Department of Food Science and Agricultural Chemistry, McGill University, Sainte-Anne-de-Bellevue, Canada
| | - Salwa Karboune
- Department of Food Science and Agricultural Chemistry, McGill University, Sainte-Anne-de-Bellevue, Canada
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17
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Raskatov JA, Schneider JP, Nilsson BL. Defining the Landscape of the Pauling-Corey Rippled Sheet: An Orphaned Motif Finding New Homes. Acc Chem Res 2021; 54:2488-2501. [PMID: 33901396 PMCID: PMC8154201 DOI: 10.1021/acs.accounts.1c00084] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
![]()
When peptides are mixed with their mirror images in an equimolar
ratio, two-dimensional periodic structural folds can form, in which
extended peptide strands are arrayed with alternating chirality. The
resultant topography class, termed the rippled β-sheet, was
introduced as a theoretical concept by Pauling and Corey in 1953.
Unlike other fundamental protein structural motifs identified around
that time, including the α-helix and the pleated β-sheet,
it took several decades before conclusive experimental data supporting
the proposed rippled β-sheet motif were gained. Much of the
key experimental evidence was provided over the course of the past
decade through the concurrent efforts of our three laboratories. Studies
that focused on developing new self-assembling hydrogel materials
have shown that certain amphiphilic peptides form fibrils and hydrogel
networks that are more rigid and have a higher thermodynamic stability
when made from racemic peptide mixtures as opposed to pure enantiomers.
Related interrogation of assemblies composed of mixtures of l- and d-amphiphilic peptides confirmed that the resulting
fibrils were composed of alternating l/d peptides
consistent with rippled β-sheets. It was also demonstrated that
mirror-image amyloid beta (Aβ) could act as a molecular chaperone
to promote oligomer-to-fibril conversion of the natural Aβ enantiomer,
which was found to reduce Aβ neurotoxicity against different
neuronal cell models. With a cross-disciplinary approach that combines
experiment and theory, our three laboratories have demonstrated the
unique biophysical, biochemical, and biological properties that arise
upon mixing of peptide enantiomers, in consequence of rippled β-sheet
formation. In this Account, we give an overview of the early history
of the rippled β-sheet and provide a detailed structural description/definition
of this motif relative to the pleated β-sheet. We then summarize
the key findings, obtained on three unique sets of aggregating mirror-image
peptide pairs through independent efforts of our three laboratories,
and use these results to delineate the landscape of the rippled β-sheet
structural motif to inspire future studies. Peptide sequence parameters
that favor rippled β-sheet assembly are described, along with
the accompanying kinetic and thermodynamic properties, as well as
the resulting emergent physical properties of the assemblies. The
Account then concludes with a brief overview of some key unresolved
challenges in this nascent field. There is much potential for future
applications of this unique supramolecular motif in the realm of materials
design and biomedical research. We hope this Account will stimulate
much-needed discussion of this fascinating structural class to eventually
produce a fully quantitative, rational framework for the molecular
engineering of rippled β-sheets in the future.
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Affiliation(s)
- Jevgenij A. Raskatov
- Department of Chemistry and Biochemistry, UCSC, 1156 High Street, Santa Cruz, California 95064, United States
| | - Joel P. Schneider
- Chemical Biology Laboratory, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Frederick, Maryland 21702, United States
| | - Bradley L. Nilsson
- Department of Chemistry, University of Rochester, Rochester, New York 14627-0216, United States
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18
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Bernhard S, Tibbitt MW. Supramolecular engineering of hydrogels for drug delivery. Adv Drug Deliv Rev 2021; 171:240-256. [PMID: 33561451 DOI: 10.1016/j.addr.2021.02.002] [Citation(s) in RCA: 124] [Impact Index Per Article: 41.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Revised: 01/27/2021] [Accepted: 02/03/2021] [Indexed: 02/06/2023]
Abstract
Supramolecular binding motifs are increasingly employed in the design of biomaterials. The ability to rationally engineer specific yet reversible associations into polymer networks with supramolecular chemistry enables injectable or sprayable hydrogels that can be applied via minimally invasive administration. In this review, we highlight two main areas where supramolecular binding motifs are being used in the design of drug delivery systems: engineering network mechanics and tailoring drug-material affinity. Throughout, we highlight many of the established and emerging chemistries or binding motifs that are useful for the design of supramolecular hydrogels for drug delivery applications.
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19
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Agarwal P, Greene DG, Sherman S, Wendl K, Vega L, Park H, Shimanovich R, Reid DL. Structural characterization and developability assessment of sustained release hydrogels for rapid implementation during preclinical studies. Eur J Pharm Sci 2021; 158:105689. [PMID: 33359482 DOI: 10.1016/j.ejps.2020.105689] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2020] [Revised: 11/12/2020] [Accepted: 12/17/2020] [Indexed: 10/22/2022]
Abstract
Sustained-release formulations are important tools to convert efficacious molecules into therapeutic products. Hydrogels enable the rapid assessment of sustained-release strategies, which are important during preclinical development where drug quantities are limited and fast turnaround times are the norm. Most research in hydrogel-based drug delivery has focused around synthesizing new materials and polymers, with limited focus on structural characterization, technology developability and implementation. Two commercially available thermosensitive hydrogel systems, comprised of block copolymers of poly(lactic-co-glycolic acid)-b-poly(ethylene glycol)-b-poly(lactic-co-glycolic acid) (PLGA) and poly(lactide-co-caprolactone)-b-poly(ethyleneglycol)-b-poly(lactide-co-caprolactone) (PLCL), were evaluated during this study. The two block copolymers described in the study were successfully formulated to form hydrogels which delayed the release of lysozyme (> 20 days) in vitro. Characterization of formulation attributes of the hydrogels like Tsol-gel temperature, complex viscosity and injection force showed that these systems are amenable to rapid implementation in preclinical studies. Understanding the structure of the gel network is critical to determine the factors controlling the release of therapeutics out of these gels. The structures were characterized via the gel mesh sizes, which were estimated using two orthogonal techniques: small angle X-ray scattering (SAXS) and rheology. The mesh sizes of these hydrogels were larger than the hydrodynamic radius (size) of lysozyme (drug), indicating that release through these gels is expected to be diffusive at all time scales rather than sub-diffusive. In vitro drug release experiments confirm that diffusion is the dominating mechanism for lysozyme release; with no contribution from degradation, erosion, relaxation, swelling of the polymer network or drug-polymer interactions. PLGA hydrogel was found to have a much higher complex viscosity than PLCL hydrogel, which correlates with the slower diffusivity and release of lysozyme seen from the PLGA hydrogel as compared to PLCL hydrogel. This is due to the increased frictional drag experienced by the lysozyme molecule in the PLGA hydrogel network, as described by the hydrodynamic theory.
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Affiliation(s)
- Prashant Agarwal
- Drug Product Technologies, Process Development, Amgen, Inc., 360 Binney St, Cambridge, MA 02142, United States.
| | - Daniel G Greene
- Drug Product Technologies, Process Development, Amgen, Inc., 360 Binney St, Cambridge, MA 02142, United States
| | - Scott Sherman
- Drug Product Technologies, Process Development, Amgen, Inc., 360 Binney St, Cambridge, MA 02142, United States
| | - Kaitlyn Wendl
- Drug Product Technologies, Process Development, Amgen, Inc., 360 Binney St, Cambridge, MA 02142, United States
| | - Leonela Vega
- Final Product Technologies, Process Development, Amgen Inc., 360 Binney St, Cambridge, MA 02142, United States
| | - Hyunsoo Park
- Drug Product Technologies, Process Development, Amgen, Inc., 360 Binney St, Cambridge, MA 02142, United States
| | - Roman Shimanovich
- Drug Product Technologies, Process Development, Amgen, Inc., 360 Binney St, Cambridge, MA 02142, United States
| | - Darren L Reid
- Drug Product Technologies, Process Development, Amgen, Inc., 360 Binney St, Cambridge, MA 02142, United States
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20
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Lyu Y, Azevedo HS. Supramolecular Hydrogels for Protein Delivery in Tissue Engineering. Molecules 2021; 26:873. [PMID: 33562215 PMCID: PMC7914635 DOI: 10.3390/molecules26040873] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Revised: 01/31/2021] [Accepted: 02/03/2021] [Indexed: 12/20/2022] Open
Abstract
Therapeutic proteins, such as growth factors (GFs), have been used in tissue engineering (TE) approaches for their ability to provide signals to cells and orchestrate the formation of functional tissue. However, to be effective and minimize off-target effects, GFs should be delivered at the target site with temporal control. In addition, protein drugs are typically sensitive water soluble macromolecules with delicate structure. As such, hydrogels, containing large amounts of water, provide a compatible environment for the direct incorporation of proteins within the hydrogel network, while their release rate can be tuned by engineering the network chemistry and density. Being formed by transient crosslinks, afforded by non-covalent interactions, supramolecular hydrogels offer important advantages for protein delivery applications. This review describes various types of supramolecular hydrogels using a repertoire of diverse building blocks, their use for protein delivery and their further application in TE contexts. By reviewing the recent literature on this topic, the merits of supramolecular hydrogels are highlighted as well as their limitations, with high expectations for new advances they will provide for TE in the near future.
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Affiliation(s)
| | - Helena S. Azevedo
- School of Engineering and Materials Science, Institute of Bioengineering, Queen Mary University of London, Mile End Road, London E1 4NS, UK;
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21
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Azeem I, El yaagoubi M, Sousa AML, Li TD, Yameen B, Lau KHA. Binding enhancements of antibody functionalized natural and synthetic fibers. RSC Adv 2021; 11:30353-30360. [PMID: 35480255 PMCID: PMC9041155 DOI: 10.1039/d1ra04645d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Accepted: 09/02/2021] [Indexed: 12/05/2022] Open
Abstract
Development of low cost biosensing using convenient and environmentally benign materials is important for wide adoption and ultimately improved healthcare and sustainable development. Immobilized antibodies are often incorporated as an essential biorecognition element in point-of-care biosensors but these proteins are costly. We present a strategy of combining convenient and low-cost surface functionalization approaches for increasing the overall binding activity of antibody functionalized natural and synthetic fibers. We demonstrate a simple one-step in situ silica NP growth protocol for increasing the surface area available for functionalization on cotton and polyester fabrics as well as on nanoporous cellulose substrates. Comparing this effect with the widely adopted and low cost plant-based polyphenol coating to enhance antibody immobilization, we find that both approaches can similarly increase overall surface activity, and we illustrate conditions under which the two approaches can produce an additive effect. Furthermore, we introduce co-immobilization of antibodies with a sacrificial “steric helper” protein for further enhancing surface activities. In combination, several hundred percent higher activities compared to physical adsorption can be achieved while maintaining a low amount of antibodies used, thus paving a practical path towards low cost biosensing. Cotton, nanoporous cellulose and polyester fabric surfaces are functionalized with combinations of in situ grown silica NPs, polyphenol coating, and protein co-immobilization to enhance surface area, antibody binding efficiency, and biosensing.![]()
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Affiliation(s)
- Iqra Azeem
- Department of Chemistry and Chemical Engineering, Syed Babar Ali School of Science and Engineering (SBASSE), Lahore University of Management Sciences (LUMS), Lahore 54792, Pakistan
- Department of Pure and Applied Chemistry, University of Strathclyde, 295 Cathedral Street, Glasgow G1 1XL, UK
| | - Marwa El yaagoubi
- Department of Pure and Applied Chemistry, University of Strathclyde, 295 Cathedral Street, Glasgow G1 1XL, UK
| | - Ana M. L. Sousa
- Department of Pure and Applied Chemistry, University of Strathclyde, 295 Cathedral Street, Glasgow G1 1XL, UK
| | - Tai-De Li
- Advanced Science Research Center (ASRC) of Graduate Center, Department of Physics in City University of New York, CUNY, New York, NY 10031, USA
| | - Basit Yameen
- Department of Chemistry and Chemical Engineering, Syed Babar Ali School of Science and Engineering (SBASSE), Lahore University of Management Sciences (LUMS), Lahore 54792, Pakistan
| | - King Hang Aaron Lau
- Department of Pure and Applied Chemistry, University of Strathclyde, 295 Cathedral Street, Glasgow G1 1XL, UK
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22
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Cai Y, Zheng C, Xiong F, Ran W, Zhai Y, Zhu HH, Wang H, Li Y, Zhang P. Recent Progress in the Design and Application of Supramolecular Peptide Hydrogels in Cancer Therapy. Adv Healthc Mater 2021; 10:e2001239. [PMID: 32935937 DOI: 10.1002/adhm.202001239] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Revised: 09/04/2020] [Indexed: 12/15/2022]
Abstract
Supramolecular peptide hydrogel (SPH) is a class of biomaterials self-assembled from peptide-based gelators through non-covalent interactions. Among many of its biomedical applications, the potential of SPH in cancer therapy has been vastly explored in the past decade, taking advantage of its good biocompatibility, multifunctionality, and injectability. SPHs can exert localized cancer therapy and induce systemic anticancer immunity to prevent tumor recurrence, depending on the design of SPH. This review first gives a brief introduction to SPH and then outlines the major types of peptide-based gelators that have been developed so far. The methodologies to tune the physicochemical properties and biological activities are summarized. The recent advances of SPH in cancer therapy as carriers, prodrugs, or drugs are highlighted. Finally, the clinical translation potential and main challenges in this field are also discussed.
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Affiliation(s)
- Ying Cai
- State Key Laboratory of Drug Research and Center of Pharmaceutics Shanghai Institute of Materia Medica Chinese Academy of Sciences Shanghai 201203 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Chao Zheng
- State Key Laboratory of Drug Research and Center of Pharmaceutics Shanghai Institute of Materia Medica Chinese Academy of Sciences Shanghai 201203 China
- China State Institute of Pharmaceutical Industry Shanghai 200040 China
| | - Fengqin Xiong
- State Key Laboratory of Drug Research and Center of Pharmaceutics Shanghai Institute of Materia Medica Chinese Academy of Sciences Shanghai 201203 China
- China State Institute of Pharmaceutical Industry Shanghai 200040 China
| | - Wei Ran
- State Key Laboratory of Drug Research and Center of Pharmaceutics Shanghai Institute of Materia Medica Chinese Academy of Sciences Shanghai 201203 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Yihui Zhai
- State Key Laboratory of Drug Research and Center of Pharmaceutics Shanghai Institute of Materia Medica Chinese Academy of Sciences Shanghai 201203 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Helen H. Zhu
- State Key Laboratory of Oncogenes and Related Genes Renji‐Med‐X Stem Cell Research Center Department of Urology Ren Ji Hospital School of Medicine and School of Biomedical Engineering Shanghai Jiao Tong University Shanghai 200127 China
| | - Hao Wang
- China State Institute of Pharmaceutical Industry Shanghai 200040 China
| | - Yaping Li
- State Key Laboratory of Drug Research and Center of Pharmaceutics Shanghai Institute of Materia Medica Chinese Academy of Sciences Shanghai 201203 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Pengcheng Zhang
- State Key Laboratory of Drug Research and Center of Pharmaceutics Shanghai Institute of Materia Medica Chinese Academy of Sciences Shanghai 201203 China
- University of Chinese Academy of Sciences Beijing 100049 China
- Yantai Key Laboratory of Nanomedicine and Advanced Preparations Yantai Institute of Materia Medica Shandong 264000 China
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23
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Abraham BL, Toriki ES, Tucker NJ, Nilsson BL. Electrostatic interactions regulate the release of small molecules from supramolecular hydrogels. J Mater Chem B 2020; 8:6366-6377. [PMID: 32596699 PMCID: PMC7429908 DOI: 10.1039/d0tb01157f] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Supramolecular hydrogels have great potential as biomaterials for sustained delivery of therapeutics. While peptide-based supramolecular hydrogels have been developed that show promise for drug delivery applications, the high cost of production has limited their widespread adoption. Low molecular weight (LMW) supramolecular hydrogels are emerging as attractive and inexpensive alternatives to peptide-based hydrogels. We recently reported novel cationic fluorenylmethyloxycarbonyl-modified phenylalanine (Fmoc-Phe) hydrogels for localized and sustained in vivo release of an anti-inflammatory agent for functional pain remediation. In an effort to further elucidate design principles to optimize these materials for delivery of a variety of molecular agents, we herein report a systematic examination of electrostatic effects on the release of cargo molecules from Fmoc-Phe derived hydrogels. Specifically, we interrogate the release of cationic, anionic, and neutral cargo molecules from a series of cationic and anionic Fmoc-Phe derived hydrogels. We observed that cargo was readily released from the hydrogels except when the cargo and hydrogel network had complementary charges, in which case the cargo was highly retained in the network. These results demonstrate that the electrostatic characteristics of both the hydrogel network and the specific cargo are critical design parameters in the formulation of LMW supramolecular hydrogel systems in the development of next-generation materials for drug delivery applications.
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Affiliation(s)
- Brittany L Abraham
- Department of Chemistry, University of Rochester, Rochester, NY 14627-0216, USA.
| | - Ethan S Toriki
- Department of Chemistry, University of Rochester, Rochester, NY 14627-0216, USA.
| | - N'Dea J Tucker
- Department of Chemistry, University of Rochester, Rochester, NY 14627-0216, USA.
| | - Bradley L Nilsson
- Department of Chemistry, University of Rochester, Rochester, NY 14627-0216, USA.
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24
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Deng Y, Sun J, Ni X, Yu B. Tribological properties of hierarchical structure artificial joints with poly acrylic acid (AA) - poly acrylamide (AAm) hydrogel and Ti6Al4V substrate. JOURNAL OF POLYMER RESEARCH 2020. [DOI: 10.1007/s10965-020-02143-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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25
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Nam J, Lim HK, Kim NH, Park JK, Kang ES, Kim YT, Heo C, Lee OS, Kim SG, Yun WS, Suh M, Kim YH. Supramolecular Peptide Hydrogel-Based Soft Neural Interface Augments Brain Signals through a Three-Dimensional Electrical Network. ACS NANO 2020; 14:664-675. [PMID: 31895542 DOI: 10.1021/acsnano.9b07396] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
Recording neural activity from the living brain is of great interest in neuroscience for interpreting cognitive processing or neurological disorders. Despite recent advances in neural technologies, development of a soft neural interface that integrates with neural tissues, increases recording sensitivity, and prevents signal dissipation still remains a major challenge. Here, we introduce a biocompatible, conductive, and biostable neural interface, a supramolecular β-peptide-based hydrogel that allows signal amplification via tight neural/hydrogel contact without neuroinflammation. The non-biodegradable β-peptide forms a multihierarchical structure with conductive nanomaterial, creating a three-dimensional electrical network, which can augment brain signal efficiently. By achieving seamless integration in brain tissue with increased contact area and tight neural tissue coupling, the epidural and intracortical neural signals recorded with the hydrogel were augmented, especially in the high frequency range. Overall, our tissuelike chronic neural interface will facilitate a deeper understanding of brain oscillation in broad brain states and further lead to more efficient brain-computer interfaces.
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Affiliation(s)
- Jiyoung Nam
- Center for Neuroscience Imaging Research , Institute for Basic Science (IBS) , Suwon 16419 , Korea
- SKKU Advanced Institute of Nanotechnology (SAINT) , Sungkyunkwan University , Suwon 16419 , Korea
| | - Hyun-Kyoung Lim
- Center for Neuroscience Imaging Research , Institute for Basic Science (IBS) , Suwon 16419 , Korea
- Department of Biological Sciences , Sungkyunkwan University , Suwon 16419 , Korea
| | - Nam Hyeong Kim
- SKKU Advanced Institute of Nanotechnology (SAINT) , Sungkyunkwan University , Suwon 16419 , Korea
| | - Jong Kwan Park
- Department of Chemistry , Sungkyunkwan University , Suwon 16419 , Korea
| | - Eun Sung Kang
- SKKU Advanced Institute of Nanotechnology (SAINT) , Sungkyunkwan University , Suwon 16419 , Korea
| | - Yong-Tae Kim
- SKKU Advanced Institute of Nanotechnology (SAINT) , Sungkyunkwan University , Suwon 16419 , Korea
| | - Chaejeong Heo
- Center for Neuroscience Imaging Research , Institute for Basic Science (IBS) , Suwon 16419 , Korea
| | - One-Sun Lee
- Qatar Environment and Energy Research Institute , Hamad Bin Khalifa University , Doha , Qatar
| | - Seong-Gi Kim
- Center for Neuroscience Imaging Research , Institute for Basic Science (IBS) , Suwon 16419 , Korea
- Department of Biomedical Engineering , Sungkyunkwan University , Suwon 16419 , Korea
| | - Wan Soo Yun
- Department of Chemistry , Sungkyunkwan University , Suwon 16419 , Korea
| | - Minah Suh
- Center for Neuroscience Imaging Research , Institute for Basic Science (IBS) , Suwon 16419 , Korea
- Department of Biomedical Engineering , Sungkyunkwan University , Suwon 16419 , Korea
- Biomedical Institute for Convergence at SKKU (BICS) , Sungkyunkwan University , Suwon 16419 , Korea
| | - Yong Ho Kim
- Center for Neuroscience Imaging Research , Institute for Basic Science (IBS) , Suwon 16419 , Korea
- SKKU Advanced Institute of Nanotechnology (SAINT) , Sungkyunkwan University , Suwon 16419 , Korea
- Department of Chemistry , Sungkyunkwan University , Suwon 16419 , Korea
- Biomedical Institute for Convergence at SKKU (BICS) , Sungkyunkwan University , Suwon 16419 , Korea
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26
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De Leon-Rodriguez LM, Park YE, Naot D, Musson DS, Cornish J, Brimble MA. Design, characterization and evaluation of β-hairpin peptide hydrogels as a support for osteoblast cell growth and bovine lactoferrin delivery. RSC Adv 2020; 10:18222-18230. [PMID: 35692623 PMCID: PMC9122575 DOI: 10.1039/d0ra03011b] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2020] [Accepted: 05/04/2020] [Indexed: 11/21/2022] Open
Abstract
The use of peptide hydrogels is of growing interest in bone regeneration. Self-assembling peptides form hydrogels and can be used as injectable drug delivery matrices. Injected into the defect site, they can gel in situ, and release factors that aid bone growth. We report on the design, synthesis and characterization of three β-hairpin peptide hydrogels, and on their osteoblast cytocompatibility as well as delivery of the lactoferrin glycoprotein, a bone anabolic factor. Osteoblasts cultured in hydrogels of the peptide with sequence NH2-Leu-His-Leu-His-Leu-Lys-Leu-Lys-Val-dPro-Pro-Thr-Lys-Leu-Lys-Leu-His-Leu-His-Leu-Arg-Gly-Asp-Ser-CONH2 (H4LMAX-RGDS) increased the osteoblast cell number and the cells appeared healthy after seven days. Furthermore, we showed that H4LMAX-RGDS was capable of releasing up to 60% of lactoferrin (pre-encapsulated in the gel) over five days while retaining the rest of the glycoprotein. Thus, H4LMAX-RGDS hydrogels are cytocompatible with primary osteoblasts and capable of delivering bio-active lactoferrin that increases osteoblast cell number. Self-assembling peptide H4LMAX-RGDS hydrogels, designed to enhance bone regeneration, are cytocompatible and capable of delivering the bone anabolic factor lactoferrin to increase osteoblast cell number.![]()
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Affiliation(s)
| | - Young-Eun Park
- Department of Medicine
- University of Auckland
- Auckland 1023
- New Zealand
| | - Dorit Naot
- Department of Medicine
- University of Auckland
- Auckland 1023
- New Zealand
| | - David S. Musson
- Department of Medicine
- University of Auckland
- Auckland 1023
- New Zealand
| | - Jillian Cornish
- Department of Medicine
- University of Auckland
- Auckland 1023
- New Zealand
| | - Margaret A. Brimble
- School of Chemical Sciences
- The University of Auckland
- Auckland 1010
- New Zealand
- Maurice Wilkins Centre for Molecular Biodiscovery
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27
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Pogostin BH, Linse S, Olsson U. Fibril Charge Affects α-Synuclein Hydrogel Rheological Properties. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:16536-16544. [PMID: 31724872 DOI: 10.1021/acs.langmuir.9b02516] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
In this paper, we have investigated the interactions between α-synuclein fibrils at different pH values and how this relates to hydrogel formation and gel properties. Using a combination of rheology, small-angle X-ray scattering, Raman spectroscopy, and cryo-transmission electron microscopy (cryo-TEM) experiments, we have been able to investigate the relationship between protein net charge, fibril-fibril interactions, and hydrogel properties, and have explored the potential for α-synuclein to form hydrogels at various conditions. We have found that α-synuclein can form hydrogels at lower concentrations (50-300 μM) and over a wider pH range (6.0-7.5) than previously reported. Over this pH range and at 300 μM, the fibril network is electrostatically stabilized. Decreasing the pH to 5.5 results in the precipitation of fibrils. A maximum in gel stiffness was observed at pH 6.5 (∼1300 Pa), which indicates that significant attractive interactions operate at this pH and cause an increase in the density of hydrophobic contacts between the otherwise negatively charged fibrils. We conclude that fibril-fibril interactions under these conditions involve both long-range electrostatic repulsion and a short-range hydrophobic attractive (sticky) component. These results may provide a basis for potential applications and add to the understanding of amyloids.
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Affiliation(s)
- Brett H Pogostin
- Department of Bioengineering , Rice University , MS-142, 6100 Main Street , Houston , Texas 77005 , United States
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28
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Miller S, Yamada Y, Patel N, Suárez E, Andrews C, Tau S, Luke BT, Cachau RE, Schneider JP. Electrostatically Driven Guanidinium Interaction Domains that Control Hydrogel-Mediated Protein Delivery In Vivo. ACS CENTRAL SCIENCE 2019; 5:1750-1759. [PMID: 31807676 PMCID: PMC6891851 DOI: 10.1021/acscentsci.9b00501] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/21/2019] [Indexed: 05/10/2023]
Abstract
Protein biologics are an important class of drugs, but the necessity for frequent parenteral administration is a major limitation. Drug-delivery materials offer a potential solution, but protein-material adsorption can cause denaturation, which reduces their effectiveness. Here, we describe a new protein delivery platform that limits direct contact between globular protein domains and material matrix, yet from a single subcutaneous administration can be tuned for long-term drug release. The strategy utilizes complementary electrostatic interactions made between a suite of designed interaction domains (IDs), installed onto the terminus of a protein of interest, and a negatively charged self-assembled fibrillar hydrogel. These intermolecular interactions can be easily modulated by choice of ID to control material interaction and desorption energies, which allows regulation of protein release kinetics to fit desired release profiles. Molecular dynamics studies provided a molecular-level understanding of the mechanisms that govern release and identified optimal binding zones on the gel fibrils that facilitate strong ID-material interactions, which are crucial for sustained release of protein. This delivery platform can be easily loaded with cargo, is shear-thin syringe implantable, provides improved protein stability, is capable of a diverse range of in vitro release rates, and most importantly, can accomplish long-term control over in vivo protein delivery.
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Affiliation(s)
- Stephen
E. Miller
- Chemical
Biology Laboratory and Cancer and Inflammation Program, National Cancer Institute, Frederick, Maryland 21702, United States
| | - Yuji Yamada
- Chemical
Biology Laboratory and Cancer and Inflammation Program, National Cancer Institute, Frederick, Maryland 21702, United States
| | - Nimit Patel
- Small Animal Imaging Program and Advanced Biomedical Computational Science Group, Frederick National Laboratory for Cancer Research, Frederick, Maryland 21702, United States
| | - Ernesto Suárez
- Small Animal Imaging Program and Advanced Biomedical Computational Science Group, Frederick National Laboratory for Cancer Research, Frederick, Maryland 21702, United States
| | - Caroline Andrews
- Chemical
Biology Laboratory and Cancer and Inflammation Program, National Cancer Institute, Frederick, Maryland 21702, United States
| | - Steven Tau
- Chemical
Biology Laboratory and Cancer and Inflammation Program, National Cancer Institute, Frederick, Maryland 21702, United States
| | - Brian T. Luke
- Small Animal Imaging Program and Advanced Biomedical Computational Science Group, Frederick National Laboratory for Cancer Research, Frederick, Maryland 21702, United States
| | - Raul E. Cachau
- Small Animal Imaging Program and Advanced Biomedical Computational Science Group, Frederick National Laboratory for Cancer Research, Frederick, Maryland 21702, United States
| | - Joel P. Schneider
- Chemical
Biology Laboratory and Cancer and Inflammation Program, National Cancer Institute, Frederick, Maryland 21702, United States
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29
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Faidra Angelerou MG, Markus R, Paraskevopoulou V, Foralosso R, Clarke P, Alvarez CV, Chenlo M, Johnson L, Rutland C, Allen S, Brasnett C, Seddon A, Zelzer M, Marlow M. Mechanistic investigations into the encapsulation and release of small molecules and proteins from a supramolecular nucleoside gel in vitro and in vivo. J Control Release 2019; 317:118-129. [PMID: 31678096 DOI: 10.1016/j.jconrel.2019.10.011] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2018] [Revised: 08/13/2019] [Accepted: 10/02/2019] [Indexed: 01/17/2023]
Abstract
Supramolecular gels have recently emerged as promising biomaterials for the delivery of a wide range of bioactive molecules, from small hydrophobic drugs to large biomolecules such as proteins. Although it has been demonstrated that each encapsulated molecule has a different release profile from the hydrogel, so far diffusion and steric impediment have been identified as the only mechanisms for the release of molecules from supramolecular gels. Erosion of a supramolecular gel has not yet been reported to contribute to the release profiles of encapsulated molecules. Here, we use a novel nucleoside-based supramolecular gel as a drug delivery system for proteins with different properties and a hydrophobic dye and describe for the first time how these materials interact, encapsulate and eventually release bioactive molecules through an erosion-based process. Through fluorescence microscopy and spectroscopy as well as small angle X-ray scattering, we show that the encapsulated molecules directly interact with the hydrogel fibres - rather than being physically entrapped in the gel network. The ability of these materials to protect proteins against enzymatic degradation is also demonstrated here for the first time. In addition, the released proteins were proven to be functional in vitro. Real-time fluorescence microscopy together with macroscopic release studies confirm that erosion is the key release mechanism. In vivo, the gel completely degrades after two weeks and no signs of inflammation are detected, demonstrating its in vivo safety. By establishing the contribution of erosion as a key driving force behind the release of bioactive molecules from supramolecular gels, this work provides mechanistic insight into the way molecules with different properties are encapsulated and released from a nucleoside-based supramolecular gel and sets the basis for the design of more tailored supramolecular gels for drug delivery applications.
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Affiliation(s)
| | - Robert Markus
- SLIM Imaging Unit, Faculty of Medicine and Health Sciences, School of Life Sciences, University of Nottingham, Nottingham NG7 2RD, UK
| | | | | | - Philip Clarke
- School of Medicine, University of Nottingham, Queen's Medical Centre, UK
| | - Clara V Alvarez
- School of Medicine, University of Santiago de Compostela, Spain
| | - Miguel Chenlo
- School of Medicine, University of Santiago de Compostela, Spain
| | | | - Catrin Rutland
- School of Veterinary Medicine and Science, Faculty of Medicine, University of Nottingham, Sutton Bonington, UK
| | | | | | - Annela Seddon
- HH Wills Physics Laboratory, Tyndall Avenue, University of Bristol, BS8 1TL, UK; Bristol Centre for Functional Nanomaterials, HH Wills Physics Laboratory, Tyndall Avenue, University of Bristol, BS8 1TL, UK
| | | | - Maria Marlow
- School of Pharmacy, University of Nottingham, UK.
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30
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Blöhbaum J, Paulus I, Pöppler AC, Tessmar J, Groll J. Influence of charged groups on the cross-linking efficiency and release of guest molecules from thiol-ene cross-linked poly(2-oxazoline) hydrogels. J Mater Chem B 2019; 7:1782-1794. [PMID: 32254920 PMCID: PMC6592217 DOI: 10.1039/c8tb02575d] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2018] [Accepted: 01/16/2019] [Indexed: 12/21/2022]
Abstract
We describe the preparation of hydrogels using highly functionalized poly(oxazoline) based polymeric precursors and cross-linking via UV mediated radical thiol-ene chemistry. Random copolymers were synthesized based on the combination of the more hydrophilic 2-methyl-2-oxazoline or the less hydrophilic monomer 2-ethyl-2-oxazoline with 2-(3-butenyl)-2-oxazoline. These copolymers were functionalized via a post-polymerization technique with thiol or cysteine functionality at the side chain. Hence, hydrogels were obtained, for which the thermo-responsive behavior, network density and correlated properties such as swelling and mechanics, as well as the possibility of electrostatic interaction, can be tuned. Cell culture tests demonstrated good cytocompatibility of the synthesized copolymers and hydrogels. A study with two low molecular weight substances, methylene blue and fluorescein sodium, was performed to investigate how the thermo-responsive behavior or the positive charge incorporated by cysteine could influence the interaction with the compounds. It was found that the interaction with the hydrogel network was strongly influenced by the chemical properties of the dye. A hydrophilic and positively charged hydrogel network was shown to be a promising candidate for the uptake and prolonged release of negatively charged low molecular weight substances.
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Affiliation(s)
- Julia Blöhbaum
- Department of Functional Materials in Medicine and Dentistry and Bavarian Polymer Institute (BPI)
, University of Würzburg
,
Pleicherwall 2
, 97070 Würzburg
, Germany
.
| | - Ilona Paulus
- Department of Functional Materials in Medicine and Dentistry and Bavarian Polymer Institute (BPI)
, University of Würzburg
,
Pleicherwall 2
, 97070 Würzburg
, Germany
.
| | - Ann-Christin Pöppler
- Institute of Organic Chemistry
, University of Würzburg
, Am Hubland
,
97074 Würzburg
, Germany
| | - Jörg Tessmar
- Department of Functional Materials in Medicine and Dentistry and Bavarian Polymer Institute (BPI)
, University of Würzburg
,
Pleicherwall 2
, 97070 Würzburg
, Germany
.
| | - Jürgen Groll
- Department of Functional Materials in Medicine and Dentistry and Bavarian Polymer Institute (BPI)
, University of Würzburg
,
Pleicherwall 2
, 97070 Würzburg
, Germany
.
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31
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Shang Y, Zhi D, Feng G, Wang Z, Mao D, Guo S, Liu R, Liu L, Zhang S, Sun S, Wang K, Kong D, Gao J, Yang Z. Supramolecular Nanofibers with Superior Bioactivity to Insulin-Like Growth Factor-I. NANO LETTERS 2019; 19:1560-1569. [PMID: 30789273 DOI: 10.1021/acs.nanolett.8b04406] [Citation(s) in RCA: 56] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Bioactive peptides derived from proteins generally need to be folded into secondary structures to activate downstream signaling pathways. However, synthetic peptides typically form random-coils, thus losing their bioactivities. Here, we show that by introducing a self-assembling peptide motif and using different preparation pathways, a peptide from insulin-like growth factor-I (IGF-1) can be folded into an α-helix and β-sheet. The β-sheet one exhibits a low dissociation constant to the IGF-1 receptor (IGF-1R, 11.5 nM), which is only about 3 times higher than that of IGF-1 (4.3 nM). However, the α-helical one and the peptide without self-assembling motif show weak affinities to IGF-1R ( KD = 179.1 and 321.6 nM, respectively). At 10 nM, the β-sheet one efficiently activates the IGF-1 downstream pathway, significantly enhancing HUVEC proliferation and preventing cell apoptosis. The β-sheet peptide shows superior performance to IGF-1 in vivo, and it improves ischemic hind-limb salvage by significantly reducing muscle degradation and enhancing limb vascularization. Our study provides a useful strategy to constrain peptides into different conformations, which may lead to the development of supramolecular nanomaterials mimicking biofunctional proteins.
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Affiliation(s)
- Yuna Shang
- Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, State Key Laboratory of Medicinal Chemical Biology, Collaborative Innovation Center of Chemical Science and Engineering, and National Institute of Functional Materials , Nankai University , Tianjin 300071 , P. R. China
| | - Dengke Zhi
- Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, State Key Laboratory of Medicinal Chemical Biology, Collaborative Innovation Center of Chemical Science and Engineering, and National Institute of Functional Materials , Nankai University , Tianjin 300071 , P. R. China
| | - Guowei Feng
- Department of Genitourinary Oncology, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Tianjin Key Laboratory of Cancer Prevention and Therapy , Tianjin's Clinical Research Center for Cancer , Tianjin 300060 , P. R. China
| | - Zhongyan Wang
- Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, State Key Laboratory of Medicinal Chemical Biology, Collaborative Innovation Center of Chemical Science and Engineering, and National Institute of Functional Materials , Nankai University , Tianjin 300071 , P. R. China
| | - Duo Mao
- Department of Chemical and Biomolecular Engineering , National University of Singapore , Engineering Drive 4 , Singapore , 117585
| | - Shuang Guo
- Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, State Key Laboratory of Medicinal Chemical Biology, Collaborative Innovation Center of Chemical Science and Engineering, and National Institute of Functional Materials , Nankai University , Tianjin 300071 , P. R. China
| | - Ruihua Liu
- Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, State Key Laboratory of Medicinal Chemical Biology, Collaborative Innovation Center of Chemical Science and Engineering, and National Institute of Functional Materials , Nankai University , Tianjin 300071 , P. R. China
| | - Lulu Liu
- Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, State Key Laboratory of Medicinal Chemical Biology, Collaborative Innovation Center of Chemical Science and Engineering, and National Institute of Functional Materials , Nankai University , Tianjin 300071 , P. R. China
| | - Shuhao Zhang
- Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, State Key Laboratory of Medicinal Chemical Biology, Collaborative Innovation Center of Chemical Science and Engineering, and National Institute of Functional Materials , Nankai University , Tianjin 300071 , P. R. China
| | - Shenghuan Sun
- Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, State Key Laboratory of Medicinal Chemical Biology, Collaborative Innovation Center of Chemical Science and Engineering, and National Institute of Functional Materials , Nankai University , Tianjin 300071 , P. R. China
| | - Kai Wang
- Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, State Key Laboratory of Medicinal Chemical Biology, Collaborative Innovation Center of Chemical Science and Engineering, and National Institute of Functional Materials , Nankai University , Tianjin 300071 , P. R. China
| | - Deling Kong
- Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, State Key Laboratory of Medicinal Chemical Biology, Collaborative Innovation Center of Chemical Science and Engineering, and National Institute of Functional Materials , Nankai University , Tianjin 300071 , P. R. China
| | - Jie Gao
- Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, State Key Laboratory of Medicinal Chemical Biology, Collaborative Innovation Center of Chemical Science and Engineering, and National Institute of Functional Materials , Nankai University , Tianjin 300071 , P. R. China
| | - Zhimou Yang
- Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, State Key Laboratory of Medicinal Chemical Biology, Collaborative Innovation Center of Chemical Science and Engineering, and National Institute of Functional Materials , Nankai University , Tianjin 300071 , P. R. China
- Jiangsu Center for the Collaboration and Innovation of Cancer Biotherapy, Cancer Institute , Xuzhou Medical University , Xuzhou , Jiangsu P. R. China
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32
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Takahashi R, Ikai T, Kurokawa T, King DR, Gong JP. Double network hydrogels based on semi-rigid polyelectrolyte physical networks. J Mater Chem B 2019; 7:6347-6354. [DOI: 10.1039/c9tb01217f] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Double network hydrogels are formulated from polyacrylamide hydrogels containing semi-rigid polyelectrolytes through post-polymerization immersion in multi-valent ion solutions.
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Affiliation(s)
- Riku Takahashi
- Graduate School of Life Science
- Hokkaido University
- Sapporo 001-0021
- Japan
| | - Takuma Ikai
- Graduate School of Life Science
- Hokkaido University
- Sapporo 001-0021
- Japan
| | - Takayuki Kurokawa
- Faculty of Advanced Life Science
- Hokkaido University
- Sapporo 001-0021
- Japan
- Global Station for Soft Matter
| | - Daniel R. King
- Faculty of Advanced Life Science
- Hokkaido University
- Sapporo 001-0021
- Japan
- Global Station for Soft Matter
| | - Jian Ping Gong
- Faculty of Advanced Life Science
- Hokkaido University
- Sapporo 001-0021
- Japan
- Global Station for Soft Matter
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33
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Chan KH, Lee WH, Ni M, Loo Y, Hauser CAE. C-Terminal Residue of Ultrashort Peptides Impacts on Molecular Self-Assembly, Hydrogelation, and Interaction with Small-Molecule Drugs. Sci Rep 2018; 8:17127. [PMID: 30459362 PMCID: PMC6244206 DOI: 10.1038/s41598-018-35431-2] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2018] [Accepted: 11/06/2018] [Indexed: 12/26/2022] Open
Abstract
Single molecular changes on a tripeptide can have dramatic effects on their self-assembly and hydrogelation. Herein, we explore C-terminal residue variation on two consistent ultrashort peptide backbones, i.e. acetylated-Leu-Ile-Val-Ala-Gly-Xaa and acetylated-Ile-Val-Xaa (Xaa = His, Arg, Asn). The objective of this study is to identify candidates that can form hydrogels for small-molecule drug (SMD) delivery. Haemolysis and cytotoxicity (with human adipose-derived mesenchymal stem cells) assays showed that the new soluble peptides (Xaa = His, Arg) are cytocompatible. Gelation studies showed that all but acetylated-Ile-Val-Arg could gel under physiological conditions. Longer peptidic backbones drive self-assembly more effectively as reflected in field emission scanning electron microscopy (FESEM) and circular dichroism spectroscopy studies. Rheological studies revealed that the resultant hydrogels have varying stiffness and yield stress, depending on the backbone and C-terminal residue. Visible spectroscopy-based elution studies with SMDs (naltrexone, methotrexate, doxorubicin) showed that besides the C-terminal residue, the shape of the SMD also determines the rate and extent of SMD elution. Based on the elution assays, infrared spectroscopy, and FESEM, we propose models for the peptide fibril-SMD interaction. Our findings highlight the importance of matching the molecular properties of the self-assembling peptide and SMD in order to achieve the desired SMD release profile.
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Affiliation(s)
- Kiat Hwa Chan
- Division of Science, Yale-NUS College, 16 College Avenue West, Singapore, 138527, Singapore.
| | - Wei Hao Lee
- Department of Chemistry, Krieger School of Arts & Sciences, 3400 North Charles Street, Johns Hopkins University, Baltimore, Maryland, USA
| | - Ming Ni
- School of Biological Sciences & Engineering, Yachay Tech University, Hacienda San José s/n, San Miguel de Urcuquí, 100105, Ecuador
| | - Yihua Loo
- Institute of Bioengineering and Nanotechnology, 31 Biopolis Way, Singapore, 138669, Singapore
| | - Charlotte A E Hauser
- Laboratory for Nanomedicine, King Abdullah University of Science and Technology, Thuwal, 23955-6900, Saudi Arabia.
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Majumder P, Baxa U, Walsh STR, Schneider JP. Design of a Multicompartment Hydrogel that Facilitates Time-Resolved Delivery of Combination Therapy and Synergized Killing of Glioblastoma. Angew Chem Int Ed Engl 2018; 57:15040-15044. [PMID: 30240496 PMCID: PMC6424348 DOI: 10.1002/anie.201806483] [Citation(s) in RCA: 74] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2018] [Revised: 08/21/2018] [Indexed: 01/03/2023]
Abstract
There is significant current interest in identifying new combination therapies that synergize to treat disease, and it is becoming increasingly clear that the temporal resolution of their administration greatly impacts efficacy. To facilitate effective delivery, a multicompartment hydrogel material was developed that is composed of spherical vesicles interlaced within a self-assembled peptide-based network of physically crosslinked fibrils that allows time-resolved independent co-delivery of small molecules. This material architecture effectively delivers the EGFR kinase inhibitor Erlotinib (ERL) and Doxorubicin (DOX, DNA intercalator) in an ERL→DOX sequential manner to synergistically kill glioblastoma, the most aggressive form of brain cancer.
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Affiliation(s)
- Poulami Majumder
- Chemical Biology Laboratory, National Cancer Institute, 376 Boyles St, Frederick, MD, 21702, USA
| | - Ulrich Baxa
- National Cryo-Electron Microscopy facility, Frederick National Laboratory for Cancer Research, Frederick, MD, 21702, USA
| | - Scott T R Walsh
- Chemical Biology Laboratory, National Cancer Institute, 376 Boyles St, Frederick, MD, 21702, USA
| | - Joel P Schneider
- Chemical Biology Laboratory, National Cancer Institute, 376 Boyles St, Frederick, MD, 21702, USA
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Design of a Multicompartment Hydrogel that Facilitates Time‐Resolved Delivery of Combination Therapy and Synergized Killing of Glioblastoma. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201806483] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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Yamada Y, Chowdhury A, Schneider JP, Stetler-Stevenson WG. Macromolecule-Network Electrostatics Controlling Delivery of the Biotherapeutic Cell Modulator TIMP-2. Biomacromolecules 2018; 19:1285-1293. [PMID: 29505725 PMCID: PMC6329387 DOI: 10.1021/acs.biomac.8b00107] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Tissue inhibitor of metalloproteinase 2 (TIMP-2) is an endogenous 22 kDa proteinase inhibitor, demonstrating antitumorigenic, antimetastatic and antiangiogenic activities in vitro and in vivo. Recombinant TIMP-2 is currently undergoing preclinical testing in multiple, murine tumor models. Here we report the development of an inert, injectable peptide hydrogel matrix enabling encapsulation and sustained release of TIMP-2. We studied the TIMP-2 release profile from four β-hairpin peptide gels of varying net electrostatic charge. A negatively charged peptide gel (designated AcVES3) enabling encapsulation of 4 mg/mL of TIMP-2, without effects on rheological properties, facilitated the slow sustained release (0.9%/d) of TIMP-2 over 28 d. Released TIMP-2 is structurally intact and maintains the ability to inhibit MMP activity, as well as suppress lung cancer cell proliferation in vitro. These findings suggest that the AcVES3 hydrogel will be useful as an injectable vehicle for systemic delivery of TIMP-2 in vivo for ongoing preclinical development.
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Affiliation(s)
- Yuji Yamada
- Chemical Biology Laboratory, National Cancer Institute, National Institutes of Health, Frederick, Maryland 21701, United States
| | - Ananda Chowdhury
- Radiation Oncology Branch, National Cancer Institute, National Institutes of Health, Bethesda, Maryland 20892, United States
| | - Joel P. Schneider
- Chemical Biology Laboratory, National Cancer Institute, National Institutes of Health, Frederick, Maryland 21701, United States
| | - William G. Stetler-Stevenson
- Radiation Oncology Branch, National Cancer Institute, National Institutes of Health, Bethesda, Maryland 20892, United States
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38
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Sahoo JK, VandenBerg MA, Webber MJ. Injectable network biomaterials via molecular or colloidal self-assembly. Adv Drug Deliv Rev 2018; 127:185-207. [PMID: 29128515 DOI: 10.1016/j.addr.2017.11.005] [Citation(s) in RCA: 54] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2017] [Revised: 09/16/2017] [Accepted: 11/06/2017] [Indexed: 11/19/2022]
Abstract
Self-assembly is a powerful tool to create functional materials. A specific application for which self-assembled materials are ideally suited is in creating injectable biomaterials. Contrasting with traditional biomaterials that are implanted through surgical means, injecting biomaterials through the skin offers numerous advantages, expanding the scope and impact for biomaterials in medicine. In particular, self-assembled biomaterials prepared from molecular or colloidal interactions have been frequently explored. The strategies to create these materials are varied, taking advantage of engineered oligopeptides, proteins, and nanoparticles as well as affinity-mediated crosslinking of synthetic precursors. Self-assembled materials typically facilitate injectability through two different mechanisms: i) in situ self-assembly, whereby materials would be administered in a monomeric or oligomeric form and self-assemble in response to some physiologic stimulus, or ii) self-assembled materials that, by virtue of their dynamic, non-covalent interactions, shear-thin to facilitate flow within a syringe and subsequently self-heal into its reassembled material form at the injection site. Indeed, many classes of materials are capable of being injected using a combination of these two mechanisms. Particular utility has been noted for self-assembled biomaterials in the context of tissue engineering, regenerative medicine, drug delivery, and immunoengineering. Given the controlled and multifunctional nature of many self-assembled materials demonstrated to date, we project a future where injectable self-assembled biomaterials afford improved practice in advancing healthcare.
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Affiliation(s)
- Jugal Kishore Sahoo
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, IN 46556, USA
| | - Michael A VandenBerg
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, IN 46556, USA
| | - Matthew J Webber
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, IN 46556, USA; Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, IN 46556, USA; Harper Cancer Research Institute, University of Notre Dame, Notre Dame, IN 46556, USA; Advanced Diagnostics and Therapeutics, University of Notre Dame, Notre Dame, IN 46556, USA; Warren Family Center for Drug Discovery and Development, University of Notre Dame, Notre Dame, IN 46556, USA; Center for Nanoscience and Technology (NDnano), University of Notre Dame, Notre Dame, IN 46556, USA.
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39
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Bruggeman KF, Williams RJ, Nisbet DR. Dynamic and Responsive Growth Factor Delivery from Electrospun and Hydrogel Tissue Engineering Materials. Adv Healthc Mater 2018; 7. [PMID: 29193871 DOI: 10.1002/adhm.201700836] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2017] [Revised: 09/04/2017] [Indexed: 12/21/2022]
Abstract
Tissue engineering scaffolds are designed to mimic physical, chemical, and biological features of the extracellular matrix, thereby providing a constant support that is crucial to improved regenerative medicine outcomes. Beyond mechanical and structural support, the next generation of these materials must also consider the more dynamic presentation and delivery of drugs or growth factors to guide new and regenerating tissue development. These two aspects are explored expansively separately, but they must interact synergistically to achieve optimal regeneration. This review explores common tissue engineering materials types, electrospun polymers and hydrogels, and strategies used for incorporating drug delivery systems into these scaffolds.
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Affiliation(s)
- Kiara F. Bruggeman
- Laboratory of Advanced Biomaterials; Research School of Engineering; The Australian National University; Canberra ACT 2601 Australia
| | - Richard J. Williams
- School of Engineering; RMIT University; Melbourne VIC 3001 Australia
- Biofab3D; Aikenhead Center for Medical Discovery; St. Vincent's Hospital; Melbourne VIC 3065 Australia
| | - David R. Nisbet
- Laboratory of Advanced Biomaterials; Research School of Engineering; The Australian National University; Canberra ACT 2601 Australia
- Biofab3D; Aikenhead Center for Medical Discovery; St. Vincent's Hospital; Melbourne VIC 3065 Australia
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40
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Khang MK, Zhou J, Huang Y, Hakamivala A, Tang L. Preparation of a novel injectable in situ-gelling nanoparticle with applications in controlled protein release and cancer cell entrapment. RSC Adv 2018; 8:34625-34633. [PMID: 35548629 PMCID: PMC9087364 DOI: 10.1039/c8ra06589f] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2018] [Revised: 12/11/2018] [Accepted: 10/02/2018] [Indexed: 11/21/2022] Open
Abstract
Temperature sensitive injectable hydrogels have been used as drug/protein carriers for a variety of pharmaceutical applications. Oligo(ethylene glycol) methacrylate (OEGMA) monomers with varying ethylene oxide chain lengths have been used for the synthesis of in situ forming hydrogel. In this study, a new series of thermally induced gelling hydrogel nanoparticles (PMOA hydrogel nanoparticles) was developed by copolymerization with di(ethylene glycol) methyl ether methacrylate (MEO2MA), poly(ethylene glycol) methyl ether methacrylate (300 g mol−1, OEGMA300), and acrylic acid (AAc). The effects of acrylic acid content on the physical, chemical, and biological properties of the nanoparticle-based hydrogels were investigated. Due to its high electrostatic properties, addition of AAc increases LCST as well as gelation temperature. Further, using Cy5-labelled bovine serum albumin and erythropoietin (Epo) as model drugs, studies have shown that the thermogelling hydrogels have the ability to tune the release rate of these proteins in vitro. Finally, the ability of Epo releasing hydrogels to recruit prostate cancer cells was assessed in vivo. Overall, our results support that this new series of thermally induced gelling systems can be used as protein control releasing vehicles and cancer cell traps. At body temperature, thermosensitive nanoparticles release erythropoietin to lure metastatic cancer cells.![]()
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Affiliation(s)
- Min Kyung Khang
- Chemistry and Biochemistry Department
- University of Texas at Arlington
- Arlington
- USA
- Bioengineering Department
| | - Jun Zhou
- Bioengineering Department
- University of Texas at Arlington
- Arlington
- USA
| | - Yihui Huang
- Bioengineering Department
- University of Texas at Arlington
- Arlington
- USA
| | | | - Liping Tang
- Bioengineering Department
- University of Texas at Arlington
- Arlington
- USA
- Department of Biomedical Science and Environmental Biology
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41
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Sharifzadeh G, Hosseinkhani H. Biomolecule-Responsive Hydrogels in Medicine. Adv Healthc Mater 2017; 6. [PMID: 29057617 DOI: 10.1002/adhm.201700801] [Citation(s) in RCA: 61] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2017] [Revised: 08/17/2017] [Indexed: 12/19/2022]
Abstract
Recent advances and applications of biomolecule-responsive hydrogels, namely, glucose-responsive hydrogels, protein-responsive hydrogels, and nucleic-acid-responsive hydrogels are highlighted. However, achieving the ultimate purpose of using biomolecule-responsive hydrogels in preclinical and clinical areas is still at the very early stage and calls for more novel designing concepts and advance ideas. On the way toward the real/clinical application of biomolecule-responsive hydrogels, plenty of factors should be extensively studied and examined under both in vitro and in vivo conditions. For example, biocompatibility, biointegration, and toxicity of biomolecule-responsive hydrogels should be carefully evaluated. From the living body's point of view, biocompatibility is seriously depended on the interactions at the tissue/polymer interface. These interactions are influenced by physical nature, chemical structure, surface properties, and degradation of the materials. In addition, the developments of advanced hydrogels with tunable biological and mechanical properties which cause no/low side effects are of great importance.
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Affiliation(s)
- Ghorbanali Sharifzadeh
- Department of Polymer Engineering; Faculty of Chemical Engineering; Universiti Teknologi Malaysia; 81310 Johor Malaysia
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42
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Duan K, Ghosh G, Lo JF. Optimizing Multiplexed Detections of Diabetes Antibodies via Quantitative Microfluidic Droplet Array. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2017; 13:10.1002/smll.201702323. [PMID: 28990274 PMCID: PMC5755373 DOI: 10.1002/smll.201702323] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2017] [Revised: 08/11/2017] [Indexed: 05/02/2023]
Abstract
Sensitive, single volume detections of multiple diabetes antibodies can provide immunoprofiling and early screening of at-risk patients. To advance the state-of-the-art suspension assays for diabetes antibodies, porous hydrogel droplets are leveraged in microfluidic serpentine arrays to enhance reagent transport. This spatially multiplexed assay is applied to the detection of antibodies against insulin, glutamic acid decarboxylase, and insulinoma-associated protein 2. Optimization of assay protocol results in a shortened assay time of 2 h, with better than 20 pg mL Supporting Information detection limits across all three antibodies. Specificity and cross-reactivity tests show negligible background, nonspecific antibody-antigen, and nonspecific antibody-antibody bindings. Multiplexed detections are able to measure within 15% of target concentrations from low to high ranges. The technique enables quantifications of as little as 8000 molecules in each 500 µm droplet in a single volume, multiplexed assay format, a breakthrough necessary for the adoption of diabetes panels for clinical screening and monitoring in the future.
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Affiliation(s)
- Kai Duan
- Bioengineering Program, Department of Mechanical Engineering, University of Michigan at Dearborn, Dearborn, MI, 48128, USA
| | - Gargi Ghosh
- Bioengineering Program, Department of Mechanical Engineering, University of Michigan at Dearborn, Dearborn, MI, 48128, USA
| | - Joe Fujiou Lo
- Bioengineering Program, Department of Mechanical Engineering, University of Michigan at Dearborn, Dearborn, MI, 48128, USA
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43
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Rehmann MS, Skeens KM, Kharkar PM, Ford EM, Maverakis E, Lee KH, Kloxin AM. Tuning and Predicting Mesh Size and Protein Release from Step Growth Hydrogels. Biomacromolecules 2017; 18:3131-3142. [PMID: 28850788 PMCID: PMC6699171 DOI: 10.1021/acs.biomac.7b00781] [Citation(s) in RCA: 103] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Hydrogel-based depots are of growing interest for release of biopharmaceuticals; however, a priori selection of hydrogel compositions that will retain proteins of interest and provide desired release profiles remains elusive. Toward addressing this, in this work, we have established a new tool for the facile assessment of protein release from hydrogels and applied it to evaluate the effectiveness of mesh size estimations on predicting protein retention or release. Poly(ethylene glycol) (PEG)-based hydrogel depots were formed by photoinitiated step growth polymerization of four-arm PEG functionalized with norbornene (PEG-norbornene, 4% w/w to 20% w/w, Mn ∼ 5 to 20 kDa) and different dithiol cross-linkers (PEG Mn ∼ 1.5 kDa or enzymatically degradable peptide), creating well-defined, robust materials with a range of mesh sizes estimated with Flory-Rehner or rubber elasticity theory (∼5 to 15 nm). A cocktail of different model proteins was released from compositions of interest, and sodium dodecyl sulfate polyacrylamide gel electrophoresis (SDS-PAGE) was used to facilely and quantitatively analyze temporal release profiles. Mesh size was predictive of retention of relatively large proteins and release of relatively small proteins. Proteins with diameters comparable to the mesh size, which is often the case for growth factors, were released by hindered diffusion and required experimental assessment of retention and release. With this knowledge, hydrogels were designed for the controlled release of a therapeutically relevant growth factor, PDGF-BB.
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Affiliation(s)
- Matthew S. Rehmann
- Department of Chemical and Biomolecular Engineering, University of Delaware, 150 Academy Street, Newark, Delaware 19716, United States
| | - Kelsi M. Skeens
- Department of Chemical and Biomolecular Engineering, University of Delaware, 150 Academy Street, Newark, Delaware 19716, United States
| | - Prathamesh M. Kharkar
- Department of Materials Science and Engineering, University of Delaware, 201 DuPont Hall, Newark, Delaware 19716, United States
| | - Eden M. Ford
- Department of Chemical and Biomolecular Engineering, University of Delaware, 150 Academy Street, Newark, Delaware 19716, United States
| | - Emanual Maverakis
- Department of Dermatology, School of Medicine, University of California, Davis, California
| | - Kelvin H. Lee
- Department of Chemical and Biomolecular Engineering, University of Delaware, 150 Academy Street, Newark, Delaware 19716, United States
- Delaware Biotechnology Institute, University of Delaware, 15 Innovation Way, Newark, DE 19711
| | - April M. Kloxin
- Department of Chemical and Biomolecular Engineering, University of Delaware, 150 Academy Street, Newark, Delaware 19716, United States
- Department of Materials Science and Engineering, University of Delaware, 201 DuPont Hall, Newark, Delaware 19716, United States
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44
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Walsh TR, Knecht MR. Biointerface Structural Effects on the Properties and Applications of Bioinspired Peptide-Based Nanomaterials. Chem Rev 2017; 117:12641-12704. [DOI: 10.1021/acs.chemrev.7b00139] [Citation(s) in RCA: 132] [Impact Index Per Article: 18.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Tiffany R. Walsh
- Institute
for Frontier Materials, Deakin University, Geelong, Victoria 3216, Australia
| | - Marc R. Knecht
- Department
of Chemistry, University of Miami, 1301 Memorial Drive, Coral Gables, Florida 33146, United States
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45
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Hu C, Liu X, Ran W, Meng J, Zhai Y, Zhang P, Yin Q, Yu H, Zhang Z, Li Y. Regulating cancer associated fibroblasts with losartan-loaded injectable peptide hydrogel to potentiate chemotherapy in inhibiting growth and lung metastasis of triple negative breast cancer. Biomaterials 2017; 144:60-72. [PMID: 28823844 DOI: 10.1016/j.biomaterials.2017.08.009] [Citation(s) in RCA: 99] [Impact Index Per Article: 14.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2017] [Revised: 08/07/2017] [Accepted: 08/08/2017] [Indexed: 01/09/2023]
Abstract
Preoperative chemotherapy is effective in improving the prognosis of patients, but its efficacy is impeded by cancer associated fibroblasts (CAFs) that enhance the survival, growth, and metastasis of cancer cells. To inhibit the activity of CAFs, prolonged and localized drug exposure is necessary. Here, we report on the rational design, screening, and evaluation of an injectable peptide hydrogel as a local losartan depot aiming to inhibit CAFs and potentiate chemotherapy. We synthesized a set of peptide derivatives and found that C16-GNNQQNYKD-OH (C16-N) surpassed the others in hydrogel formation and drug encapsulation, due to its flexible hydrocarbon tail and interpeptide hydrogen bonding that allowed supramolecular self-assembly into long filaments with hydrophobic cores. C16-N co-assembled with losartan to form hydrogel from which losartan was sustainably released over 9 days. After intratumoral injection, the hydrogel could be retained in the tumor for more than 9 days, significantly inhibited the CAFs and collagen synthesis in orthotopic 4T1 tumors, and enhanced the efficacy of PEGylated doxorubicin-loaded liposomes (Dox-L) in inhibiting the tumor growth (64% vs. Dox-L alone) and lung metastasis (80% vs. Dox-L alone). These results provide important guiding principles for the rational design of injectable peptide hydrogels aiming to regulate CAFs and improve chemotherapy.
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Affiliation(s)
- Chunhua Hu
- State Key Laboratory of Drug Research & Center for Pharmaceutics, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, 201203, China; Nano Science and Technology Institute, University of Science and Technology of China, Suzhou, 215123, China
| | - Xiaoyu Liu
- State Key Laboratory of Drug Research & Center for Pharmaceutics, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, 201203, China; Nano Science and Technology Institute, University of Science and Technology of China, Suzhou, 215123, China
| | - Wei Ran
- State Key Laboratory of Drug Research & Center for Pharmaceutics, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, 201203, China; University of Chinese Academy of Sciences (UCAS), Beijing, 100049, China
| | - Jia Meng
- State Key Laboratory of Drug Research & Center for Pharmaceutics, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, 201203, China; University of Chinese Academy of Sciences (UCAS), Beijing, 100049, China
| | - Yihui Zhai
- State Key Laboratory of Drug Research & Center for Pharmaceutics, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, 201203, China; University of Chinese Academy of Sciences (UCAS), Beijing, 100049, China
| | - Pengcheng Zhang
- State Key Laboratory of Drug Research & Center for Pharmaceutics, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, 201203, China; University of Chinese Academy of Sciences (UCAS), Beijing, 100049, China.
| | - Qi Yin
- State Key Laboratory of Drug Research & Center for Pharmaceutics, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, 201203, China; University of Chinese Academy of Sciences (UCAS), Beijing, 100049, China
| | - Haijun Yu
- State Key Laboratory of Drug Research & Center for Pharmaceutics, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, 201203, China; University of Chinese Academy of Sciences (UCAS), Beijing, 100049, China
| | - Zhiwen Zhang
- State Key Laboratory of Drug Research & Center for Pharmaceutics, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, 201203, China; University of Chinese Academy of Sciences (UCAS), Beijing, 100049, China
| | - Yaping Li
- State Key Laboratory of Drug Research & Center for Pharmaceutics, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, 201203, China; University of Chinese Academy of Sciences (UCAS), Beijing, 100049, China.
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46
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Rahmani V, Elshereef R, Sheardown H. Optimizing electrostatic interactions for controlling the release of proteins from anionic and cationically modified alginate. Eur J Pharm Biopharm 2017; 117:232-243. [DOI: 10.1016/j.ejpb.2017.04.025] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2017] [Revised: 04/20/2017] [Accepted: 04/21/2017] [Indexed: 01/15/2023]
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47
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Worthington P, Drake KM, Li Z, Napper AD, Pochan DJ, Langhans SA. Beta-hairpin hydrogels as scaffolds for high-throughput drug discovery in three-dimensional cell culture. Anal Biochem 2017; 535:25-34. [PMID: 28757092 DOI: 10.1016/j.ab.2017.07.024] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2017] [Revised: 07/07/2017] [Accepted: 07/25/2017] [Indexed: 11/28/2022]
Abstract
Automated cell-based high-throughput screening (HTS) is a powerful tool in drug discovery, and it is increasingly being recognized that three-dimensional (3D) models, which more closely mimic in vivo-like conditions, are desirable screening platforms. One limitation hampering the development of 3D HTS is the lack of suitable 3D culture scaffolds that can readily be incorporated into existing HTS infrastructure. We now show that β-hairpin peptide hydrogels can serve as a 3D cell culture platform that is compatible with HTS. MAX8 β-hairpin peptides can physically assemble into a hydrogel with defined porosity, permeability and mechanical stability with encapsulated cells. Most importantly, the hydrogels can then be injected under shear-flow and immediately reheal into a hydrogel with the same properties exhibited prior to injection. The post-injection hydrogels are cell culture compatible at physiological conditions. Using standard HTS equipment and medulloblastoma pediatric brain tumor cells as a model system, we show that automatic distribution of cell-peptide mixtures into 384-well assay plates results in evenly dispensed, viable MAX8-cell constructs suitable for commercially available cell viability assays. Since MAX8 peptides can be functionalized to mimic the microenvironment of cells from a variety of origins, MAX8 peptide gels should have broad applicability for 3D HTS drug discovery.
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Affiliation(s)
- Peter Worthington
- Nemours Center for Childhood Cancer Research, Alfred I. duPont Hospital for Children, Wilmington, DE 19803, USA; Department of Biomedical Engineering, University of Delaware, Newark, DE 19716, USA.
| | - Katherine M Drake
- Nemours Center for Childhood Cancer Research, Alfred I. duPont Hospital for Children, Wilmington, DE 19803, USA.
| | - Zhiqin Li
- Nemours Center for Childhood Cancer Research, Alfred I. duPont Hospital for Children, Wilmington, DE 19803, USA.
| | - Andrew D Napper
- Nemours Center for Childhood Cancer Research, Alfred I. duPont Hospital for Children, Wilmington, DE 19803, USA.
| | - Darrin J Pochan
- Department of Materials Science and Engineering and Delaware Biotechnology Institute, University of Delaware, Newark, DE 19716, USA.
| | - Sigrid A Langhans
- Nemours Center for Childhood Cancer Research, Alfred I. duPont Hospital for Children, Wilmington, DE 19803, USA.
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48
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Sinthuvanich C, Nagy-Smith KJ, Walsh STR, Schneider JP. Triggered Formation of Anionic Hydrogels from Self-Assembling Acidic Peptide Amphiphiles. Macromolecules 2017. [DOI: 10.1021/acs.macromol.7b01056] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Chomdao Sinthuvanich
- Chemical Biology Laboratory,
National Cancer Institute, Frederick National Laboratory for Cancer Research, Frederick, Maryland 21702, United States
| | - Katelyn J. Nagy-Smith
- Chemical Biology Laboratory,
National Cancer Institute, Frederick National Laboratory for Cancer Research, Frederick, Maryland 21702, United States
| | - Scott T. R. Walsh
- Chemical Biology Laboratory,
National Cancer Institute, Frederick National Laboratory for Cancer Research, Frederick, Maryland 21702, United States
| | - Joel P. Schneider
- Chemical Biology Laboratory,
National Cancer Institute, Frederick National Laboratory for Cancer Research, Frederick, Maryland 21702, United States
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Li R, Boyd-Moss M, Long B, Martel A, Parnell A, Dennison AJC, Barrow CJ, Nisbet DR, Williams RJ. Facile Control over the Supramolecular Ordering of Self-assembled Peptide Scaffolds by Simultaneous Assembly with a Polysacharride. Sci Rep 2017; 7:4797. [PMID: 28684767 PMCID: PMC5500548 DOI: 10.1038/s41598-017-04643-3] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2017] [Accepted: 05/17/2017] [Indexed: 11/23/2022] Open
Abstract
Enabling control over macromolecular ordering and the spatial distribution of structures formed via the mechanisms of molecular self-assembly is a challenge that could yield a range of new functional materials. In particular, using the self-assembly of minimalist peptides, to drive the incorporation of large complex molecules will allow a functionalization strategy for the next generation of biomaterial engineering. Here, for the first time, we show that co-assembly with increasing concentrations of a highly charged polysaccharide, fucoidan, the microscale ordering of Fmoc-FRGDF peptide fibrils and subsequent mechanical properties of the resultant hydrogel can be easily and effectively manipulated without disruption to the nanofibrillar structure of the assembly.
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Affiliation(s)
- Rui Li
- Center for Chemistry and Biotechnology, Deakin University, Waurn Ponds, VIC, Australia
| | - Mitchell Boyd-Moss
- School of Engineering, RMIT University, Melbourne, Victoria, Australia
- Biofab3D, St. Vincents Hospital, Melbourne, Victoria, Australia
| | - Benjamin Long
- Center for Chemistry and Biotechnology, Deakin University, Waurn Ponds, VIC, Australia
- School of Applied and Biomedical Sciences, Federation University, Mount Helen, Victoria, Australia
| | | | - Andrew Parnell
- Department of Physics and Astronomy, University of Sheffield, Sheffield, United Kingdom
| | - Andrew J C Dennison
- Department of Physics and Astronomy, University of Sheffield, Sheffield, United Kingdom
- Institut Laue Langevin, Grenoble, France
- Department of Chemistry, Technical University Berlin, 10623, Berlin, Germany
| | - Colin J Barrow
- Center for Chemistry and Biotechnology, Deakin University, Waurn Ponds, VIC, Australia
| | - David R Nisbet
- Laboratory of Advanced Biomaterials, Research School of Engineering, The Australian National University, Canberra, ACT, Australia.
| | - Richard J Williams
- School of Engineering, RMIT University, Melbourne, Victoria, Australia.
- Biofab3D, St. Vincents Hospital, Melbourne, Victoria, Australia.
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Analysis of chitosan/tripolyphosphate micro- and nanogel yields is key to understanding their protein uptake performance. J Colloid Interface Sci 2017; 494:242-254. [DOI: 10.1016/j.jcis.2017.01.066] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2016] [Revised: 01/18/2017] [Accepted: 01/19/2017] [Indexed: 12/22/2022]
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