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Kaygisiz K, Rauch‐Wirth L, Iscen A, Hartenfels J, Kremer K, Münch J, Synatschke CV, Weil T. Peptide Amphiphiles as Biodegradable Adjuvants for Efficient Retroviral Gene Delivery. Adv Healthc Mater 2024; 13:e2301364. [PMID: 37947246 PMCID: PMC11468294 DOI: 10.1002/adhm.202301364] [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: 04/28/2023] [Revised: 10/20/2023] [Indexed: 11/12/2023]
Abstract
Retroviral gene delivery is the key technique for in vitro and ex vivo gene therapy. However, inefficient virion-cell attachment resulting in low gene transduction efficacy remains a major challenge in clinical applications. Adjuvants for ex vivo therapy settings need to increase transduction efficiency while being easily removed or degraded post-transduction to prevent the risk of venous embolism after infusing the transduced cells back to the bloodstream of patients, yet no such peptide system have been reported thus far. In this study, peptide amphiphiles (PAs) with a hydrophobic fatty acid and a hydrophilic peptide moiety that reveal enhanced viral transduction efficiency are introduced. The PAs form β-sheet-rich fibrils that assemble into positively charged aggregates, promoting virus adhesion to the cell membrane. The block-type amphiphilic sequence arrangement in the PAs ensures efficient cell-virus interaction and biodegradability. Good biodegradability is observed for fibrils forming small aggregates and it is shown that via molecular dynamics simulations, the fibril-fibril interactions of PAs are governed by fibril surface hydrophobicity. These findings establish PAs as additives in retroviral gene transfer, rivalling commercially available transduction enhancers in efficiency and degradability with promising translational options in clinical gene therapy applications.
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Affiliation(s)
- Kübra Kaygisiz
- Department Synthesis of MacromoleculesMax Planck Institute for Polymer ResearchAckermannweg 1055128MainzGermany
| | - Lena Rauch‐Wirth
- Institute of Molecular VirologyUlm University Medical CenterMeyerhofstraße 189081UlmGermany
| | - Aysenur Iscen
- Polymer Theory DepartmentMax Planck Institute for Polymer ResearchAckermannweg 1055128MainzGermany
| | - Jan Hartenfels
- Department Synthesis of MacromoleculesMax Planck Institute for Polymer ResearchAckermannweg 1055128MainzGermany
| | - Kurt Kremer
- Polymer Theory DepartmentMax Planck Institute for Polymer ResearchAckermannweg 1055128MainzGermany
| | - Jan Münch
- Institute of Molecular VirologyUlm University Medical CenterMeyerhofstraße 189081UlmGermany
| | - Christopher V. Synatschke
- Department Synthesis of MacromoleculesMax Planck Institute for Polymer ResearchAckermannweg 1055128MainzGermany
| | - Tanja Weil
- Department Synthesis of MacromoleculesMax Planck Institute for Polymer ResearchAckermannweg 1055128MainzGermany
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2
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Zhang Y, Zhang H, Ghosh D, Williams RO. Just how prevalent are peptide therapeutic products? A critical review. Int J Pharm 2020; 587:119491. [PMID: 32622810 PMCID: PMC10655677 DOI: 10.1016/j.ijpharm.2020.119491] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Revised: 05/28/2020] [Accepted: 05/29/2020] [Indexed: 02/08/2023]
Abstract
How prevalent are peptide therapeutic products? How innovative are the formulations used to deliver peptides? This review provides a critical analysis of therapeutic peptide products and the formulations approved by the United States Food and Drug administration (FDA), the European Medicines Agency (EMA), and the Japanese Pharmaceuticals and Medical Devices Agency (PMDA). This review also provides an in-depth analysis of dosage forms and administration routes for delivering peptide therapeutics, including injectables, oral dosage forms, and other routes of administration. We discuss the function of excipients in parenteral formulations in detail, since most peptide therapeutics are parenterally administered. We provide case studies of alternate delivery routes and dosage forms. Based on our analysis, therapeutic peptides administered as injectables remain the most commonly used dosage forms, particularly in the form of subcutaneous, intravenous, or intramuscular injections. In addition, therapeutic peptides are formulated to achieve prolonged release, often through the use of polymer carriers. The limited number of oral therapeutic peptide products and their poor absorption and subsequent low bioavailability indicate a need for new technologies to broaden the formulation design space. Therapeutic peptide products may also be delivered through other administration routes, including intranasal, implant, and sublingual routes. Therefore, an in-depth understanding of how therapeutic peptides are now formulated and administered is essential to improve peptide delivery, improve patient compliance, and reduce the healthcare burden for these crucial therapeutic agents.
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Affiliation(s)
- Yajie Zhang
- Division of Molecular Pharmaceutics and Drug Delivery, College of Pharmacy, The University of Texas at Austin, Austin, TX, USA
| | - Hairui Zhang
- Division of Molecular Pharmaceutics and Drug Delivery, College of Pharmacy, The University of Texas at Austin, Austin, TX, USA
| | - Debadyuti Ghosh
- Division of Molecular Pharmaceutics and Drug Delivery, College of Pharmacy, The University of Texas at Austin, Austin, TX, USA
| | - Robert O Williams
- Division of Molecular Pharmaceutics and Drug Delivery, College of Pharmacy, The University of Texas at Austin, Austin, TX, USA.
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3
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Feger G, Angelov B, Angelova A. Prediction of Amphiphilic Cell-Penetrating Peptide Building Blocks from Protein-Derived Amino Acid Sequences for Engineering of Drug Delivery Nanoassemblies. J Phys Chem B 2020; 124:4069-4078. [PMID: 32337991 DOI: 10.1021/acs.jpcb.0c01618] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Amphiphilic molecules, forming self-assembled nanoarchitectures, are typically composed of hydrophobic and hydrophilic domains. Peptide amphiphiles can be designed from two, three, or four building blocks imparting novel structural and functional properties and affinities for interaction with cellular membranes or intracellular organelles. Here we present a combined numerical approach to design amphiphilic peptide scaffolds that are derived from the human nuclear Ki-67 protein. Ki-67 acts, like a biosurfactant, as a steric and electrostatic charge barrier against the collapse of mitotic chromosomes. The proposed predictive design of new Ki-67 protein-derived amphiphilic amino acid sequences exploits the computational outcomes of a set of web-accessible predictors, which are based on machine learning methods. The ensemble of such artificial intelligence algorithms, involving support vector machine (SVM), random forest (RF) classifiers, and neural networks (NN), enables the nanoengineering of a broad range of innovative peptide materials for therapeutic delivery in various applications. Amphiphilic cell-penetrating peptides (CPP), derived from natural protein sequences, may spontaneously form self-assembled nanocarriers characterized by enhanced cellular uptake. Thanks to their inherent low immunogenicity, they may enable the safe delivery of therapeutic molecules across the biological barriers.
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Affiliation(s)
- Guillaume Feger
- Université Paris-Saclay, CNRS, Institut Galien Paris-Saclay UMR8612, F-92296 Châtenay-Malabry, France
| | - Borislav Angelov
- Institute of Physics, ELI Beamlines, Academy of Sciences of the Czech Republic, Na Slovance 2, CZ-18221 Prague, Czech Republic
| | - Angelina Angelova
- Université Paris-Saclay, CNRS, Institut Galien Paris-Saclay UMR8612, F-92296 Châtenay-Malabry, France
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4
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Novelli F, Strofaldi A, De Santis S, Del Giudice A, Casciardi S, Galantini L, Morosetti S, Pavel NV, Masci G, Scipioni A. Polymorphic Self-Organization of Lauroyl Peptide in Response to pH and Concentration. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:3941-3951. [PMID: 32118446 DOI: 10.1021/acs.langmuir.9b02924] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Amphipathic peptides are attractive building blocks for the preparation of self-assembling, bio-inspired, and stimuli responsive nanomaterials with pharmaceutical interest. The bioavailability of these materials can be improved with the insertion of d amino acid residues to avoid fast proteolysis in vivo. With this knowledge, a new lauroyl peptide consisting of a sequence of glycine, glycine, d-serine, and d-lysine was designed. In spite of its simple sequence, this lipopeptide self-assembles into spherical micelles at acid pH, when the peptide moiety adopts disordered conformations. Self-aggregates reshape toward fibers at basic pH, following the conformational transition of the peptide region from random coil to β-sheet. Finally, hydrogels are achieved at basic pH and higher concentrations. The transition from random coil to β-sheet conformation of the peptide headgroup obtained by increasing pH was monitored by circular dichroism and vibrational spectroscopy. A structural analysis, performed by combining dynamic light scattering, small-angle X-ray scattering, transmission electron microscopy, and molecular dynamic simulations, demonstrated that the transition allows the self-assemblies to remodel from spherical micelles to rodlike shapes, to long fibers with rectangular cross-section and a head-tail-tail-head structure. The viscoelastic behavior of the hydrogels formed at the highest pH was investigated by rheology measurements.
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Affiliation(s)
- Federica Novelli
- Dipartimento di Chimica, Sapienza Università di Roma, P.le A. Moro, 5, Rome 00185, Italy
| | - Alessandro Strofaldi
- Dipartimento di Chimica, Sapienza Università di Roma, P.le A. Moro, 5, Rome 00185, Italy
| | - Serena De Santis
- Dipartimento di Chimica, Sapienza Università di Roma, P.le A. Moro, 5, Rome 00185, Italy
| | - Alessandra Del Giudice
- Dipartimento di Chimica, Sapienza Università di Roma, P.le A. Moro, 5, Rome 00185, Italy
| | - Stefano Casciardi
- Department of Occupational and Environmental Medicine, Epidemiology and Hygiene, National Institute for Insurance against Accidents at Work (INAIL Research), Rome 00144, Italy
| | - Luciano Galantini
- Dipartimento di Chimica, Sapienza Università di Roma, P.le A. Moro, 5, Rome 00185, Italy
| | - Stefano Morosetti
- Dipartimento di Chimica, Sapienza Università di Roma, P.le A. Moro, 5, Rome 00185, Italy
| | - Nicolae V Pavel
- Dipartimento di Chimica, Sapienza Università di Roma, P.le A. Moro, 5, Rome 00185, Italy
| | - Giancarlo Masci
- Dipartimento di Chimica, Sapienza Università di Roma, P.le A. Moro, 5, Rome 00185, Italy
| | - Anita Scipioni
- Dipartimento di Chimica, Sapienza Università di Roma, P.le A. Moro, 5, Rome 00185, Italy
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5
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Polynorepinephrine: state-of-the-art and perspective applications in biosensing and molecular recognition. Anal Bioanal Chem 2020; 412:5945-5954. [DOI: 10.1007/s00216-020-02578-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2019] [Revised: 02/25/2020] [Accepted: 03/03/2020] [Indexed: 01/26/2023]
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6
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Kang SM, Han S, Oh JH, Lee YM, Park CH, Shin CY, Lee DH, Chung JH. A synthetic peptide blocking TRPV1 activation inhibits UV-induced skin responses. J Dermatol Sci 2017; 88:126-133. [PMID: 28551094 DOI: 10.1016/j.jdermsci.2017.05.009] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2017] [Revised: 05/04/2017] [Accepted: 05/16/2017] [Indexed: 12/18/2022]
Abstract
BACKGROUND Transient receptor potential type 1 (TRPV1) can be activated by ultraviolet (UV) irradiation, and mediates UV-induced matrix metalloproteinase (MMP)-1 and proinflammatory cytokines in keratinocytes. Various chemicals and compounds targeting TRPV1 activation have been developed, but are not in clinical use mostly due to their safety issues. OBJECTIVE We aimed to develop a novel TRPV1-targeting peptide to inhibit UV-induced responses in human skin. METHODS We designed and generated a novel TRPV1 inhibitory peptide (TIP) which mimics the specific site in TRPV1 (aa 701-709: Gln-Arg-Ala-Ile-Thr-Ile-Leu-Asp-Thr, QRAITILDT), Thr705, and tested its efficacy of blocking UV-induced responses in HaCaT, mouse, and human skin. RESULTS TIP effectively inhibited capsaicin-induced calcium influx and TRPV1 activation. Treatment of HaCaT with TIP prevented UV-induced increases of MMP-1 and pro-inflammatory cytokines such as interleukin (IL)-6 and tumor necrosis factor-α. In mouse skin in vivo, TIP inhibited UV-induced skin thickening and prevented UV-induced expression of MMP-13 and MMP-9. Moreover, TIP attenuated UV-induced erythema and the expression of MMP-1, MMP-2, IL-6, and IL-8 in human skin in vivo. CONCLUSION The novel synthetic peptide targeting TRPV1 can ameliorate UV-induced skin responses in vitro and in vivo, providing a promising therapeutic approach against UV-induced inflammation and photoaging.
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Affiliation(s)
- So Min Kang
- Department of Biomedical Sciences, Seoul National University Graduate School, Republic of Korea; Department of Dermatology, Seoul National University College of Medicine, Republic of Korea; Institute of Human-Environment Interface Biology, Medical Research Center, Seoul National University, Republic of Korea
| | - Sangbum Han
- Department of Biomedical Sciences, Seoul National University Graduate School, Republic of Korea; Department of Dermatology, Seoul National University College of Medicine, Republic of Korea; Institute of Human-Environment Interface Biology, Medical Research Center, Seoul National University, Republic of Korea
| | - Jang-Hee Oh
- Department of Dermatology, Seoul National University College of Medicine, Republic of Korea; Institute of Human-Environment Interface Biology, Medical Research Center, Seoul National University, Republic of Korea
| | - Young Mee Lee
- Department of Dermatology, Seoul National University College of Medicine, Republic of Korea; Institute of Human-Environment Interface Biology, Medical Research Center, Seoul National University, Republic of Korea
| | - Chi-Hyun Park
- Department of Dermatology, Seoul National University College of Medicine, Republic of Korea; Institute of Human-Environment Interface Biology, Medical Research Center, Seoul National University, Republic of Korea
| | - Chang-Yup Shin
- Department of Dermatology, Seoul National University College of Medicine, Republic of Korea; Institute of Human-Environment Interface Biology, Medical Research Center, Seoul National University, Republic of Korea
| | - Dong Hun Lee
- Department of Dermatology, Seoul National University College of Medicine, Republic of Korea; Institute of Human-Environment Interface Biology, Medical Research Center, Seoul National University, Republic of Korea
| | - Jin Ho Chung
- Department of Biomedical Sciences, Seoul National University Graduate School, Republic of Korea; Department of Dermatology, Seoul National University College of Medicine, Republic of Korea; Institute of Human-Environment Interface Biology, Medical Research Center, Seoul National University, Republic of Korea; Institute on Aging, Seoul National University, Seoul, Republic of Korea.
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7
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Chang C, Liang P, Chen L, Liu J, Chen S, Zheng G, Quan C. pH-responsive nanoparticle assembly from peptide amphiphiles for tumor targeting drug delivery. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2017; 28:1338-1350. [PMID: 28467173 DOI: 10.1080/09205063.2017.1325095] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
In this paper, the peptide amphiphiles (PA) which consists of RGDSEEEEEEEEEEK as pH-sensitive segment and stearic acid as hydrophobic segment named RGDS-E10-Lys(C18) was successfully synthesized. TEM images showed that uniformly dispersed nanoparticles could be formed by PA molecules in pH 7.4 medium, however, disintegrated in pH 5.0 medium. Circular dichroism (CD) spectrum indicated that polypeptide adopted a random-coil conformation in neutral medium (pH 7.4). The CD signal was significantly attenuate for decreased solubility of PA in medium with pH 5.0. As expected, the prepared RGDS-E10-Lys(C18) assembly showed high pH-sensitive property which demonstrated a much more rapid drug release from micelles in tumor tissue (acidic environment) than in physiological environment (neutral environment). After DOX-loaded micelles incubated with tumor cells, the cytotoxicity of the micelles against Hela cells was increased obviously, indicating the great potential of micelles developed here as promising vehicle for targeted pH-responsive drug delivery.
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Affiliation(s)
- Cong Chang
- a Key Laboratory of Chinese Medicine Resource and Compound Prescription of Ministry of Education , Hubei University of Chinese Medicine , Wuhan , P. R. China
| | - Peiqing Liang
- b Department of Biomedical Engineering , School of Engineering, Sun Yat-sen University , Guangzhou , P. R. China
| | - Linlin Chen
- a Key Laboratory of Chinese Medicine Resource and Compound Prescription of Ministry of Education , Hubei University of Chinese Medicine , Wuhan , P. R. China
| | - Junfeng Liu
- a Key Laboratory of Chinese Medicine Resource and Compound Prescription of Ministry of Education , Hubei University of Chinese Medicine , Wuhan , P. R. China
| | - Shihong Chen
- a Key Laboratory of Chinese Medicine Resource and Compound Prescription of Ministry of Education , Hubei University of Chinese Medicine , Wuhan , P. R. China
| | - Guohua Zheng
- a Key Laboratory of Chinese Medicine Resource and Compound Prescription of Ministry of Education , Hubei University of Chinese Medicine , Wuhan , P. R. China
| | - Changyun Quan
- b Department of Biomedical Engineering , School of Engineering, Sun Yat-sen University , Guangzhou , P. R. China
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8
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Stetsenko DA, Apukhtina VS, Chelobanov BP, Palladino P. Removal of acid-labile protecting or anchoring groups in the presence of polyfluorinated alcohol: Application to solid-phase peptide synthesis. RUSSIAN JOURNAL OF BIOORGANIC CHEMISTRY 2016. [DOI: 10.1134/s106816201602014x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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9
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Zhang H, Yu M, Song A, Song Y, Xin X, Shen J, Yuan S. Modulating hierarchical self-assembly behavior of a peptide amphiphile/nonionic surfactant mixed system. RSC Adv 2016. [DOI: 10.1039/c5ra25437j] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The self-assembly behavior of a nonionic surfactant (n-dodecyl tetraethylene monoether, C12E4) and a peptide amphiphile (PA, C16-GK-3) mixed system was investigated using a combination of microscopic, scattering and spectroscopic techniques.
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Affiliation(s)
- Han Zhang
- Key Laboratory of Colloid and Interface Chemistry (Shandong University)
- Ministry of Education
- Jinan
- P. R. China
| | - Menghong Yu
- Key Laboratory of Colloid and Interface Chemistry (Shandong University)
- Ministry of Education
- Jinan
- P. R. China
| | - Aixin Song
- Key Laboratory of Colloid and Interface Chemistry (Shandong University)
- Ministry of Education
- Jinan
- P. R. China
| | - Yawen Song
- Key Laboratory of Colloid and Interface Chemistry (Shandong University)
- Ministry of Education
- Jinan
- P. R. China
| | - Xia Xin
- Key Laboratory of Colloid and Interface Chemistry (Shandong University)
- Ministry of Education
- Jinan
- P. R. China
- National Engineering Technology Research Center for Colloidal Materials
| | - Jinglin Shen
- Key Laboratory of Colloid and Interface Chemistry (Shandong University)
- Ministry of Education
- Jinan
- P. R. China
| | - Shiling Yuan
- Key Laboratory of Colloid and Interface Chemistry (Shandong University)
- Ministry of Education
- Jinan
- P. R. China
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10
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Modulating self-assembly behavior of a salt-free peptide amphiphile (PA) and zwitterionic surfactant mixed system. J Colloid Interface Sci 2015; 467:43-50. [PMID: 26773608 DOI: 10.1016/j.jcis.2015.12.005] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2015] [Revised: 12/01/2015] [Accepted: 12/01/2015] [Indexed: 11/24/2022]
Abstract
A salt-free surfactant system formed by a peptide amphiphile with short headgroup (PA,C16-GK-3) and a zwitterionic surfactant (dodecyldimethylamine oxide, C12DMAO) in water has been systematically investigated. The microstructures and properties of C16-GK-3/C12DMAO mixed system were characterized using a combination of microscopic, scattering and spectroscopic techniques, including transmission electron microscopy (TEM), field emission-scanning electron microscopy (FE-SEM), atomic force microscopy (AFM), Fourier transform infrared (FT-IR), circular dichroism (CD) and rheological measurements. Rich phase transitions have been observed by adjusting the concentration of C16-GK-3. Investigation of the hydrogels of C16-GK-3/C12DMAO with TEM, SEM and AFM showed that all of these hydrogels form nanobelts. The nanobelt formation is performed in a hierarchical manner: β-sheet peptides and C12DMAO first interact each other to form small aggregates, which then arrange themselves to form one dimensional (1D) left-handed ribbons. The ribbons further aggregated into flat and rigid nanobelts. We proposed a mechanism to interpret the self-assembly process according to the specific peptide structure as well as multiple equilibria between the hydrogen bonding interactions between the headgroups of C16-GK-3, between C12DMAO molecules and the headgroups of C16-GK-3, chirality of the amino acid residues and hydrophobic interactions of the alkyl chains.
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11
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Dehsorkhi A, Gouveia RM, Smith AM, Hamley IW, Castelletto V, Connon CJ, Reza M, Ruokolainen J. Self-assembly of a dual functional bioactive peptide amphiphile incorporating both matrix metalloprotease substrate and cell adhesion motifs. SOFT MATTER 2015; 11:3115-3124. [PMID: 25779650 DOI: 10.1039/c5sm00459d] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
We describe a bioactive lipopeptide that combines the capacity to promote the adhesion and subsequent self-detachment of live cells, using template-cell-environment feedback interactions. This self-assembling peptide amphiphile comprises a diene-containing hexadecyl lipid chain (C16e) linked to a matrix metalloprotease-cleavable sequence, Thr-Pro-Gly-Pro-Gln-Gly-Ile-Ala-Gly-Gln, and contiguous with a cell-attachment and signalling motif, Arg-Gly-Asp-Ser. Biophysical characterisation revealed that the PA self-assembles into 3 nm diameter spherical micelles above a critical aggregation concentration (cac). In addition, when used in solution at 5-150 nM (well below the cac), the PA is capable of forming film coatings that provide a stable surface for human corneal fibroblasts to attach and grow. Furthermore, these coatings were demonstrated to be sensitive to metalloproteases expressed endogenously by the attached cells, and consequently to elicit the controlled detachment of cells without compromising their viability. As such, this material constitutes a novel class of multi-functional coating for both fundamental and clinical applications in tissue engineering.
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Affiliation(s)
- Ashkan Dehsorkhi
- School of Chemistry, Pharmacy and Food Biosciences, University of Reading, Whiteknights, Reading, RG6 6AD, UK.
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12
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Dehsorkhi A, Castelletto V, Hamley IW. Self-assembling amphiphilic peptides. J Pept Sci 2014; 20:453-67. [PMID: 24729276 PMCID: PMC4237179 DOI: 10.1002/psc.2633] [Citation(s) in RCA: 272] [Impact Index Per Article: 27.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2014] [Revised: 02/27/2014] [Accepted: 03/04/2014] [Indexed: 01/08/2023]
Abstract
The self-assembly of several classes of amphiphilic peptides is reviewed, and selected applications are discussed. We discuss recent work on the self-assembly of lipopeptides, surfactant-like peptides and amyloid peptides derived from the amyloid-β peptide. The influence of environmental variables such as pH and temperature on aggregate nanostructure is discussed. Enzyme-induced remodelling due to peptide cleavage and nanostructure control through photocleavage or photo-cross-linking are also considered. Lastly, selected applications of amphiphilic peptides in biomedicine and materials science are outlined.
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Affiliation(s)
- Ashkan Dehsorkhi
- Department of Chemistry, University of ReadingWhiteknights, Reading, RG6 6AD, UK
| | - Valeria Castelletto
- Department of Chemistry, University of ReadingWhiteknights, Reading, RG6 6AD, UK
| | - Ian W Hamley
- Department of Chemistry, University of ReadingWhiteknights, Reading, RG6 6AD, UK
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13
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Castelletto V, Hamley IW, Whitehouse C, Matts PJ, Osborne R, Baker ES. Self-assembly of palmitoyl lipopeptides used in skin care products. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2013; 29:9149-55. [PMID: 23822110 DOI: 10.1021/la401771j] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
The self-assembly of three cosmetically active peptide amphiphiles C16-GHK, C16-KT, and C16-KTTKS (C16 denotes a hexadecyl, palmitoyl chain) used in commercial skin care products is examined. A range of spectroscopic, microscopic, and X-ray scattering methods is used to probe the secondary structure, aggregate morphology, and the nanostructure. Peptide amphiphile (PA) C16-KTTKS forms flat tapes and extended fibrillar structures with high β-sheet content. In contrast, C16-KT and C16-GHK exhibit crystal-like aggregates with, in the case of the latter PA, lower β-sheet content. All three PA samples show spacings from bilayer structures in small-angle X-ray scattering profiles, and all three have similar critical aggregation concentrations, this being governed by the lipid chain length. However, only C16-KTTKS is stained by Congo red, a diagnostic dye used to detect amyloid formation, and this PA also shows a highly aligned cross-β X-ray diffraction pattern consistent with the high β-sheet content in the self-assembled aggregates. These findings may provide important insights relevant to the role of self-assembled aggregates on the reported collagen-stimulating properties of these PAs.
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Affiliation(s)
- Valeria Castelletto
- Department of Chemistry, University of Reading, Reading RG6 6AD, United Kingdom
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14
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Jones RR, Castelletto V, Connon CJ, Hamley IW. Collagen stimulating effect of peptide amphiphile C16-KTTKS on human fibroblasts. Mol Pharm 2013; 10:1063-9. [PMID: 23320752 DOI: 10.1021/mp300549d] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
The collagen production of human dermal and corneal fibroblasts in contact with solutions of the peptide amphiphile (PA) C16-KTTKS is investigated and related to its self-assembly into nanotape structures. This PA is used in antiwrinkle cosmeceutical applications (trade name Matrixyl). We prove that C16-KTTKS stimulates collagen production in a concentration-dependent manner close to the critical aggregation concentration determined from pyrene fluorescence spectroscopy. This suggests that self-assembly and the stimulation of collagen production are inter-related.
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Affiliation(s)
- Roanne R Jones
- School of Chemistry, Food and Pharmacy, University of Reading , Reading RG6 6AD, U.K
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15
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Gouveia RM, Castelletto V, Alcock SG, Hamley IW, Connon CJ. Bioactive films produced from self-assembling peptide amphiphiles as versatile substrates for tuning cell adhesion and tissue architecture in serum-free conditions. J Mater Chem B 2013; 1:6157-6169. [DOI: 10.1039/c3tb21031f] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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16
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Palladino P, Stetsenko DA. New TFA-Free Cleavage and Final Deprotection in Fmoc Solid-Phase Peptide Synthesis: Dilute HCl in Fluoro Alcohol. Org Lett 2012; 14:6346-9. [DOI: 10.1021/ol303124r] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Pasquale Palladino
- Department of Chemistry, University of Reading, P.O. Box 224, Whiteknights, Reading RG6 6AD, U.K
| | - Dmitry A. Stetsenko
- Department of Chemistry, University of Reading, P.O. Box 224, Whiteknights, Reading RG6 6AD, U.K
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Palladino P, Castelletto V, Dehsorkhi A, Stetsenko D, Hamley IW. Reversible thermal transition of polydiacetylene based on KTTKS collagen sequence. Chem Commun (Camb) 2012; 48:9774-6. [DOI: 10.1039/c2cc34665f] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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