1
|
Kłodzińska SN, Wang Q, Molchanova N, Mahmoudi N, Vallooran JJ, Hansen PR, Jenssen H, Mørck Nielsen H. Nanogel delivery systems for cationic peptides: More than a 'One Size Fits All' solution. J Colloid Interface Sci 2024; 663:449-457. [PMID: 38417296 DOI: 10.1016/j.jcis.2024.02.101] [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: 11/02/2023] [Revised: 02/12/2024] [Accepted: 02/12/2024] [Indexed: 03/01/2024]
Abstract
Self-assembled hyaluronic acid-based nanogels are versatile drug carriers due to their biodegradable nature and gentle preparation conditions, making them particularly interesting for delivery of peptide therapeutics. This study aims to elucidate the relation between peptide structure and encapsulation in a nanogel. Key peptide properties that affect encapsulation in octenyl succinic anhydride-modified hyaluronic acid nanogels were identified as we explored the effect on nanogel characteristics using 12 peptides with varying charge and hydrophobicity. The size and surface properties of the microfluidics-assembled peptide-loaded nanogels were evaluated using dynamic light scattering, laser Doppler electrophoresis, and small angle neutron scattering. Additionally, the change in peptide secondary structure upon encapsulation in nanogels, their release from the nanogels, and the in vitro antimicrobial activity were assessed. In conclusion, the more hydrophobic peptides showed stronger binding to the nanogel carrier and localized internally rather than on the surface of the nanogel, resulting in more spherical nanogels with smoother surfaces and slower release profiles. In contrast, cationic and hydrophilic peptides localized at the nanogel surface resulting in fluffier nanogel structures and quick and more complete release in biorelevant medium. These findings emphasize that the advantages of nanogel delivery systems for different applications depend on the therapeutic peptide properties.
Collapse
Affiliation(s)
- Sylvia N Kłodzińska
- Center for Biopharmaceuticals and Biobarriers in Drug Delivery (BioDelivery), Department of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, DK-2100 Copenhagen, Denmark
| | - Qiuyu Wang
- Center for Biopharmaceuticals and Biobarriers in Drug Delivery (BioDelivery), Department of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, DK-2100 Copenhagen, Denmark
| | - Natalia Molchanova
- Department of Science and Environment, Roskilde University, Universitetsvej 1, DK-4000 Roskilde, Denmark
| | - Najet Mahmoudi
- ISIS Neutron and Muon Source, STFC, Rutherford Appleton Laboratory, Harwell Campus, Didcot, UK
| | - Jijo J Vallooran
- Department of Chemistry, Nirmala College, Muvattupuzha, Kerala, India
| | - Paul R Hansen
- Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, DK-2100 Copenhagen, Denmark
| | - Håvard Jenssen
- Department of Science and Environment, Roskilde University, Universitetsvej 1, DK-4000 Roskilde, Denmark
| | - Hanne Mørck Nielsen
- Center for Biopharmaceuticals and Biobarriers in Drug Delivery (BioDelivery), Department of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, DK-2100 Copenhagen, Denmark.
| |
Collapse
|
2
|
Strauch C, Schneider S. Monte Carlo simulation of the ionization and uptake behavior of cationic oligomers into pH-responsive polyelectrolyte microgels of opposite charge - a model for oligopeptide uptake and release. SOFT MATTER 2024; 20:1263-1274. [PMID: 38236145 DOI: 10.1039/d3sm01426f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/19/2024]
Abstract
External stimuli can tune the uptake and release of guest molecules in microgels. Especially their pH responsiveness makes microgels exciting candidates for drug delivery systems. When both microgel and guest molecules are pH-responsive, predicting the electrostatically driven uptake can be complex since the ionization depends on many parameters. In this work, we performed Metropolis Monte Carlo simulations while systematically varying the pK of the monomers, the concentrations of microgel and guest molecules to obtain a better understanding of the uptake of weak cationic oligomers as a model for oligopeptides into a weak anionic polyelectrolyte microgel. Further, we varied the chain length of the oligomers. The polyelectrolyte networks can take up oligomers when both the network and the oligomers are charged. The presence of both species in the system leads to a mutual enhancement of their ionization. The uptake induces a release of counterions and results in complex formation between the oligomers and the network, leading to the collapse of the networks. Longer oligomers enhance the ionization of the network and, therefore, the complexation. A higher microgel concentration increases the uptake only around the isoelectric point but prevents the uptake due to lower entropy gain at counterion release at higher pH. The results give an insight into the uptake of cationic oligomers into oppositely charged polyelectrolyte microgels and provide hints for the design of anionic microgels as carriers for guest molecules e.g. antimicrobial peptides.
Collapse
Affiliation(s)
- Christian Strauch
- Institute of Physical Chemistry, RWTH Aachen University, Landoltweg 2, 52056 Aachen, Germany.
| | - Stefanie Schneider
- Institute of Physical Chemistry, RWTH Aachen University, Landoltweg 2, 52056 Aachen, Germany.
| |
Collapse
|
3
|
van Gent ME, Klodzinska SN, Drijfhout JW, Nielsen HM, Nibbering PH. Encapsulation in oleyl-modified hyaluronic acid nanogels substantially improves the clinical potential of the antimicrobial peptides SAAP-148 and Ab-Cath. Eur J Pharm Biopharm 2023; 193:254-261. [PMID: 37944710 DOI: 10.1016/j.ejpb.2023.11.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Revised: 09/23/2023] [Accepted: 11/05/2023] [Indexed: 11/12/2023]
Abstract
Antimicrobial peptides (AMPs) are promising alternatives to antibiotics for treatment of antimicrobial resistant (AMR) bacterial infections. However, their narrow therapeutic window due to in vivo toxicity and limited stability hampers their clinical use. Here, we evaluated encapsulation of two amphiphilic AMPs, SAAP-148 and snake cathelicidin Ab-Cath, into oleyl-modified hyaluronic acid (OL-HA) nanogels to improve their selectivity index. The AMP-loaded OL-HA nanogels ranged 181-206 nm in size with a PDI of 0.2, highly negative surface charge (-47 to -48 mV) and moderate encapsulation efficiency (53-63%). The AMP-loaded OL-HA nanogels displayed similar activity in vitro as AMP solutions against AMR Staphylococcus aureus and Acinetobacter baumannii, with a dose-dependent effect over time. Importantly, the AMP-loaded OL-HA nanogels showed decreased cytotoxicity towards human erythrocytes and primary skin fibroblast, thereby improving the selectivity index of SAAP-148 and Ab-Cath by 2- and 16.8-fold, respectively. Particularly, the selectivity of Ab-Cath-loaded OL-HA nanogels has great clinical potential, with an index that reached ≥ 300 for S. aureus and ≥ 3000 for A. baumannii. These findings indicate that OL-HA nanogels are a promising drug delivery system to reduce the cytotoxicity of AMPs without substantially affecting their antimicrobial activity, thereby increasing their selectivity index and potential as therapeutics to combat AMR bacterial infections.
Collapse
Affiliation(s)
- Miriam E van Gent
- Department of Infectious Diseases, Leiden University Medical Center, 2300 RC Leiden, the Netherlands.
| | - Sylvia N Klodzinska
- Center for Biopharmaceuticals and Biobarriers in Drug Delivery (BioDelivery), Department of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, DK-2100 Copenhagen, Denmark
| | - Jan Wouter Drijfhout
- Department of Immunology, Leiden University Medical Center, 2300 RC Leiden, the Netherlands
| | - Hanne M Nielsen
- Center for Biopharmaceuticals and Biobarriers in Drug Delivery (BioDelivery), Department of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, DK-2100 Copenhagen, Denmark
| | - Peter H Nibbering
- Department of Infectious Diseases, Leiden University Medical Center, 2300 RC Leiden, the Netherlands
| |
Collapse
|
4
|
van Gent ME, Kłodzińska SN, Severin M, Ali M, van Doodewaerd BR, Bos E, Koning RI, Drijfhout JW, Nielsen HM, Nibbering PH. Encapsulation into hyaluronic acid-based nanogels improves the selectivity index of the snake cathelicidin Ab-Cath. NANOMEDICINE : NANOTECHNOLOGY, BIOLOGY, AND MEDICINE 2023; 52:102694. [PMID: 37394107 DOI: 10.1016/j.nano.2023.102694] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/26/2022] [Revised: 04/20/2023] [Accepted: 06/15/2023] [Indexed: 07/04/2023]
Affiliation(s)
- Miriam E van Gent
- Department of Infectious Diseases, Leiden University Medical Center, 2300 RC Leiden, the Netherlands.
| | - Sylvia N Kłodzińska
- Center for Biopharmaceuticals and Biobarriers in Drug Delivery (BioDelivery), Department of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, DK-2100 Copenhagen, Denmark
| | - Maureen Severin
- Department of Infectious Diseases, Leiden University Medical Center, 2300 RC Leiden, the Netherlands
| | - Muhanad Ali
- Department of Infectious Diseases, Leiden University Medical Center, 2300 RC Leiden, the Netherlands
| | - Bjorn R van Doodewaerd
- Department of Cell and Chemical Biology, Leiden University Medical Center, 2300 RC Leiden, the Netherlands
| | - Erik Bos
- Electron Microscopy Facility, Department of Cell and Chemical Biology, Leiden University Medical Center, 2300 RC Leiden, the Netherlands
| | - Roman I Koning
- Electron Microscopy Facility, Department of Cell and Chemical Biology, Leiden University Medical Center, 2300 RC Leiden, the Netherlands
| | - Jan Wouter Drijfhout
- Department of Immunology, Leiden University Medical Center, 2300 RC Leiden, the Netherlands
| | - Hanne M Nielsen
- Center for Biopharmaceuticals and Biobarriers in Drug Delivery (BioDelivery), Department of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, DK-2100 Copenhagen, Denmark
| | - Peter H Nibbering
- Department of Infectious Diseases, Leiden University Medical Center, 2300 RC Leiden, the Netherlands
| |
Collapse
|
5
|
Wanselius M, Searle S, Rodler A, Tenje M, Abrahmsén-Alami S, Hansson P. Microfluidics Platform for Studies of Peptide – Polyelectrolyte Interaction. Int J Pharm 2022; 621:121785. [DOI: 10.1016/j.ijpharm.2022.121785] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Revised: 04/12/2022] [Accepted: 04/26/2022] [Indexed: 02/01/2023]
|
6
|
Xiao X, Ji J, Zhao W, Nangia S, Libera M. Salt Destabilization of Cationic Colistin Complexation within Polyanionic Microgels. Macromolecules 2022. [DOI: 10.1021/acs.macromol.1c02157] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Xixi Xiao
- Department of Chemical Engineering and Materials Science, Stevens Institute of Technology, Hoboken, New Jersey 07030, United States
| | - Jingjing Ji
- Department of Biomedical and Chemical Engineering, Syracuse University, Syracuse, New York 13244, United States
| | - Wenhan Zhao
- Department of Chemical Engineering and Materials Science, Stevens Institute of Technology, Hoboken, New Jersey 07030, United States
| | - Shikha Nangia
- Department of Biomedical and Chemical Engineering, Syracuse University, Syracuse, New York 13244, United States
| | - Matthew Libera
- Department of Chemical Engineering and Materials Science, Stevens Institute of Technology, Hoboken, New Jersey 07030, United States
| |
Collapse
|
7
|
Al-Tikriti Y, Hansson P. Drug-Induced Phase Separation in Polyelectrolyte Microgels. Gels 2021; 8:gels8010004. [PMID: 35049539 PMCID: PMC8774790 DOI: 10.3390/gels8010004] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Revised: 12/08/2021] [Accepted: 12/18/2021] [Indexed: 01/28/2023] Open
Abstract
Polyelectrolyte microgels may undergo volume phase transition upon loading and the release of amphiphilic molecules, a process important in drug delivery. The new phase is “born” in the outermost gel layers, whereby it grows inward as a shell with a sharp boundary to the “mother” phase (core). The swelling and collapse transitions have previously been studied with microgels in large solution volumes, where they go to completion. Our hypothesis is that the boundary between core and shell is stabilized by thermodynamic factors, and thus that collapsed and swollen phases should be able to also coexist at equilibrium. We investigated the interaction between sodium polyacrylate (PA) microgel networks (diameter: 400–850 µm) and the amphiphilic drug amitriptyline hydrochloride (AMT) in the presence of NaCl/phosphate buffer of ionic strength (I) 10 and 155 mM. We used a specially constructed microscopy cell and micromanipulators to study the size and internal morphology of single microgels equilibrated in small liquid volumes of AMT solution. To probe the distribution of AMT micelles we used the fluorescent probe rhodamine B. The amount of AMT in the microgel was determined by a spectrophotometric technique. In separate experiments we studied the binding of AMT and the distribution between different microgels in a suspension. We found that collapsed, AMT-rich, and swollen AMT-lean phases coexisted in equilibrium or as long-lived metastable states at intermediate drug loading levels. In single microgels at I = 10 mM, the collapsed phase formed after loading deviated from the core-shell configuration by forming either discrete domains near the gel boundary or a calotte shaped domain. At I = 155 mM, single microgels, initially fully collapsed, displayed a swollen shell and a collapsed core after partial release of the AMT load. Suspensions displayed a bimodal distribution of swollen and collapsed microgels. The results support the hypothesis that the boundary between collapsed and swollen phases in the same microgel is stabilized by thermodynamic factors.
Collapse
Affiliation(s)
- Yassir Al-Tikriti
- Department of Pharmacy, Uppsala University, P.O. Box 580, 75123 Uppsala, Sweden;
- Department of Medicinal Chemistry, Uppsala University, P.O. Box 574, 75123 Uppsala, Sweden
| | - Per Hansson
- Department of Pharmacy, Uppsala University, P.O. Box 580, 75123 Uppsala, Sweden;
- Department of Medicinal Chemistry, Uppsala University, P.O. Box 574, 75123 Uppsala, Sweden
- Correspondence: ; Tel.: +46-18-4714027
| |
Collapse
|
8
|
Gera S, Kankuri E, Kogermann K. Antimicrobial peptides - Unleashing their therapeutic potential using nanotechnology. Pharmacol Ther 2021; 232:107990. [PMID: 34592202 DOI: 10.1016/j.pharmthera.2021.107990] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Revised: 08/30/2021] [Accepted: 09/01/2021] [Indexed: 02/07/2023]
Abstract
Antimicrobial peptides (AMPs) are potent, mostly cationic, and amphiphilic broad-spectrum host defense antimicrobials that are produced by all organisms ranging from prokaryotes to humans. In addition to their antimicrobial actions, they modulate inflammatory and immune responses and promote wound healing. Although they have clear benefits over traditional antibiotic drugs, their wide therapeutic utilization is compromised by concerns of toxicity, stability, and production costs. Recent advances in nanotechnology have attracted increasing interest to unleash the AMPs' immense potential as broad-spectrum antibiotics and anti-biofilm agents, against which the bacteria have less chances to develop resistance. Topical application of AMPs promotes migration of keratinocytes and fibroblasts, and contributes significantly to an accelerated wound healing process. Delivery of AMPs by employing nanotechnological approaches avoids the major disadvantages of AMPs, such as instability and toxicity, and provides a controlled delivery profile together with prolonged activity. In this review, we provide an overview of the key properties of AMPs and discuss the latest developments in topical AMP therapy using nanocarriers. We use chronic hard-to-heal wounds-complicated by infections, inflammation, and stagnated healing-as an example of an unmet medical need for which the AMPs' wide range of therapeutic actions could provide the most potential benefit. The use of innovative materials and sophisticated nanotechnological approaches offering various possibilities are discussed in more depth.
Collapse
Affiliation(s)
- Sonia Gera
- Institute of Pharmacy, University of Tartu, Nooruse 1, 50411 Tartu, Estonia
| | - Esko Kankuri
- Department of Pharmacology, Faculty of Medicine, University of Helsinki, Haartmaninkatu 8, 00290 Helsinki, Finland.
| | - Karin Kogermann
- Institute of Pharmacy, University of Tartu, Nooruse 1, 50411 Tartu, Estonia.
| |
Collapse
|
9
|
Hansson P. Volume Transition and Phase Coexistence in Polyelectrolyte Gels Interacting with Amphiphiles and Proteins. Gels 2020; 6:gels6030024. [PMID: 32823773 PMCID: PMC7558656 DOI: 10.3390/gels6030024] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Revised: 08/04/2020] [Accepted: 08/06/2020] [Indexed: 11/16/2022] Open
Abstract
Polyelectrolyte gels have the capacity to absorb large amounts of multivalent species of opposite charge from aqueous solutions of low ionic strength, and release them at elevated ionic strengths. The reversibility offers the possibility to switch between “storage” and “release” modes, useful in applications such as drug delivery. The review focuses on systems where so-called volume phase transitions (VPT) of the gel network take place upon the absorption and release of proteins and self-assembling amphiphiles. We discuss the background in terms of thermodynamic driving forces behind complex formation in oppositely charged mixtures, the role played by cross-links in covalent gels, and general aspects of phase coexistence in networks in relation to Gibbs’ phase rule. We also briefly discuss a gel model frequently used in papers covered by the review. After that, we review papers dealing with collapse and swelling transitions of gels in contact with solution reservoirs of macroions and surfactants. Here we describe recent progress in our understanding of the conditions required for VPT, competing mechanisms, and hysteresis effects. We then review papers addressing equilibrium aspects of core–shell phase coexistence in gels in equilibrium. Here we first discuss early observations of phase separated gels and results showing how the phases affect each other. Then follows a review of recent theoretical and experimental studies providing evidence of thermodynamically stable core–shell phase separated states, and detailed analyses of the conditions under which they exist. Finally, we describe the results from investigations of mechanisms and kinetics of the collapse/swelling transitions induced by the loading/release of proteins, surfactants, and amphiphilic drug molecules.
Collapse
Affiliation(s)
- Per Hansson
- Department of Pharmacy, Uppsala University, Box 532, SE-75123 Uppsala, Sweden
| |
Collapse
|
10
|
Borro BC, Toussaint MS, Bucciarelli S, Malmsten M. Effects of charge contrast and composition on microgel formation and interactions with bacteria-mimicking liposomes. Biochim Biophys Acta Gen Subj 2019; 1865:129485. [PMID: 31734459 DOI: 10.1016/j.bbagen.2019.129485] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2019] [Revised: 11/02/2019] [Accepted: 11/08/2019] [Indexed: 11/15/2022]
Abstract
Microgels offer opportunities for improved delivery of antimicrobial peptides (AMP). To contribute to a foundation for rational design of such systems, we here study the effects of electrostatics on the generation of peptide-carrying microgels. For this, alginate microgels loaded with polymyxin B and cross-linked by Ca2+, were formed by electrostatic complexation using a hydrodynamic focusing three-dimensional (3D)-printed micromixer, varying pH and component concentrations. The structure of the resulting composite nanoparticles was investigated by small-angle X-ray scattering, dynamic light scattering, and z-potential measurements, whereas peptide encapsulation and release was monitored spectrophotometrically. Furthermore, membrane interactions of these systems were assessed by dye leakage assays in model lipid vesicles. Our results indicate that charge contrast between polymyxin B and alginate during microgel formation affects particle size and network dimensions. In particular, while microgels prepared at maximum polymyxin B-alginate charge contrast at pH 5 and 7.4 are characterized by sharp interfaces, those formed at pH 9 are characterized by a more diffuse core, likely caused by a weaker peptide-polymer affinity, and a shell dominated by alginate that shrinks at high CaCl2 concentrations. Quantitatively, however, these effects were relatively minor, as were differences in peptide encapsulation efficiency and electrolyte-induced peptide release. This demonstrates that rather wide charge contrasts allow efficient complexation and particle formation, with polymyxin B encapsulated within the particle interior at low ionic strength, but released at high electrolyte concentration. As a consequence of this, peptide-mediated membrane destabilization were suppressed by microgel incorporation at low ionic strength, but regained after microgel disruption. After particle disruption at high ionic strength, however, some polymyxin B was found to remain bound to alginate chains from the disrupted composite microgel particles, resulting in partial loss in membrane interactions, compared to the free peptide.
Collapse
Affiliation(s)
- Bruno C Borro
- Department of Pharmacy, University of Copenhagen, Copenhagen, Denmark.
| | - Marie S Toussaint
- Department of Biological Engineering, Polytech Clermont-Ferrand, Aubiére, France
| | - Saskia Bucciarelli
- Department of Drug Design and Pharmacology, University of Copenhagen, Copenhagen, Denmark
| | - Martin Malmsten
- Department of Pharmacy, University of Copenhagen, Copenhagen, Denmark; Physical Chemistry 1, University of Lund, S-221 00 Lund, Sweden
| |
Collapse
|
11
|
Utilizing nanoparticles for improving anti-biofilm effects of azithromycin: A head-to-head comparison of modified hyaluronic acid nanogels and coated poly (lactic-co-glycolic acid) nanoparticles. J Colloid Interface Sci 2019; 555:595-606. [DOI: 10.1016/j.jcis.2019.08.006] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2019] [Revised: 07/31/2019] [Accepted: 08/02/2019] [Indexed: 12/13/2022]
|
12
|
Kłodzińska SN, Pletzer D, Rahanjam N, Rades T, Hancock RE, Nielsen HM. Hyaluronic acid-based nanogels improve in vivo compatibility of the anti-biofilm peptide DJK-5. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2019; 20:102022. [DOI: 10.1016/j.nano.2019.102022] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2019] [Revised: 05/18/2019] [Accepted: 05/24/2019] [Indexed: 10/26/2022]
|
13
|
Thermoresponsive Poly( N-Isopropylacrylamide- co-Dimethylaminoethyl Methacrylate) Microgel Aqueous Dispersions with Potential Antimicrobial Properties. Polymers (Basel) 2019; 11:polym11040606. [PMID: 30960590 PMCID: PMC6523738 DOI: 10.3390/polym11040606] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2019] [Revised: 03/25/2019] [Accepted: 03/29/2019] [Indexed: 02/06/2023] Open
Abstract
The work herein describes the preparation of thermoresponsive microgels with potential antimicrobial properties. Most of the work performed so far regarding microgels with antimicrobial activity, deals with the ability of microgels to carry and release antibiotics or antimicrobial agents (antimicrobial peptides). The originality of this work lies in the possibility of developing intrinsic antimicrobial microgels by copolymerization of the well-known thermoresponsive monomer, N-isopropylacrylamide (NIPAM) with dimethylaminoethyl methacrylate (DMAEMA), a water-soluble monomer, to form microgels via precipitation polymerization (radical polymerization). Due to the presence of a tertiary amine in the DMAEMA comonomer, microgels can be modified by N-alkylation reaction with methyl and butyl iodide. This quaternization confers positive charges to the microgel surfaces and thus the potential antimicrobial activity. The effect of DMAEMA content and its quaternization with both, methyl and butyl iodide is evaluated in terms of thermal and surface charge properties, as well as in the microgel size and viscoelastic behavior. Finally, a preliminary study of the antimicrobial activity against different microorganisms is also performed in terms of minimum inhibitory concentration (MIC). From this study we determined that in contrast with butylated microgels, methylated ones show potential antimicrobial activity and good physical properties besides of maintaining microgel thermo-responsiveness.
Collapse
|
14
|
Microgels as carriers of antimicrobial peptides – Effects of peptide PEGylation. Colloids Surf A Physicochem Eng Asp 2019. [DOI: 10.1016/j.colsurfa.2018.12.049] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
|
15
|
Borro BC, Bohr A, Bucciarelli S, Boetker JP, Foged C, Rantanen J, Malmsten M. Microfluidics-based self-assembly of peptide-loaded microgels: Effect of three dimensional (3D) printed micromixer design. J Colloid Interface Sci 2019; 538:559-568. [DOI: 10.1016/j.jcis.2018.12.010] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2018] [Revised: 11/27/2018] [Accepted: 12/03/2018] [Indexed: 12/12/2022]
|
16
|
Nyström L, Al-Rammahi N, Malekkhaiat Häffner S, Strömstedt AA, Browning KL, Malmsten M. Avidin-Biotin Cross-Linked Microgel Multilayers as Carriers for Antimicrobial Peptides. Biomacromolecules 2018; 19:4691-4702. [PMID: 30427659 DOI: 10.1021/acs.biomac.8b01484] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Herein, we report on the formation of cross-linked antimicrobial peptide-loaded microgel multilayers. Poly(ethyl acrylate- co-methacrylic acid) microgels were synthesized and functionalized with biotin to enable the formation of microgel multilayers cross-linked with avidin. Microgel functionalization and avidin cross-linking were verified with infrared spectroscopy, dynamic light scattering, and z-potential measurements, while multilayer formation (up to four layers) was studied with null ellipsometry and quartz crystal microbalance with dissipation (QCM-D). Incorporation of the antimicrobial peptide KYE28 (KYEITTIHNLFRKLTHRLFRRNFGYTLR) into the microgel multilayers was achieved either in one shot after multilayer formation or through addition after each microgel layer deposition. The latter was found to strongly promote peptide incorporation. Further, antimicrobial properties of the peptide-loaded microgel multilayers against Escherichia coli were investigated and compared to those of a peptide-loaded microgel monolayer. Results showed a more pronounced suppression in bacterial viability in suspension for the microgel multilayers. Correspondingly, LIVE/DEAD staining showed promoted disruption of adhered bacteria for the KYE28-loaded multilayers. Taken together, cross-linked microgel multilayers thus show promise as high load surface coatings for antimicrobial peptides.
Collapse
Affiliation(s)
| | | | | | | | - Kathryn L Browning
- Department of Pharmacy , University of Copenhagen , DK-2100 Copenhagen , Denmark
| | - Martin Malmsten
- Department of Pharmacy , University of Copenhagen , DK-2100 Copenhagen , Denmark
| |
Collapse
|
17
|
Labie H, Perro A, Lapeyre V, Goudeau B, Catargi B, Auzély R, Ravaine V. Sealing hyaluronic acid microgels with oppositely-charged polypeptides: A simple strategy for packaging hydrophilic drugs with on-demand release. J Colloid Interface Sci 2018; 535:16-27. [PMID: 30273723 DOI: 10.1016/j.jcis.2018.09.048] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2018] [Revised: 09/14/2018] [Accepted: 09/14/2018] [Indexed: 12/16/2022]
Abstract
A simple route to deliver on demand hydrosoluble molecules such as peptides, packaged in biocompatible and biodegradable microgels, is presented. Hyaluronic acid hydrogel particles with a controlled structure are prepared using a microfluidic approach. Their porosity and their rigidity can be tuned by changing the crosslinking density. These negatively-charged polyelectrolytes interact strongly with positively-charged linear peptides such as poly-l-lysine (PLL). Their interactions induce microgel deswelling and inhibit microgel enzymatic degradability by hyaluronidase. While small PLL penetrate the whole volume of the microgel, PLL larger than the mesh size of the network remain confined at its periphery. They make a complexed layer with reduced pore size, which insulates the microgel inner core from the outer medium. Consequently, enzymatic degradation of the matrix is fully inhibited and non-affinity hydrophilic species can be trapped in the core. Indeed, negatively-charged or small neutral peptides, without interactions with the network, usually diffuse freely across the network. By simple addition of large PLL, they are packaged in the core and can be released on demand, upon introduction of an enzyme that degrades selectively the capping agent. Single polyelectrolyte layer appears as a simple generic method to coat hydrogel-based materials of various scales for encapsulation and controlled delivery of hydrosoluble molecules.
Collapse
Affiliation(s)
- Hélène Labie
- Univ. Bordeaux, ISM, CNRS UMR 5255, Bordeaux INP, Site ENSCBP, 16 Avenue Pey Berland, 33607 Pessac Cedex, France
| | - Adeline Perro
- Univ. Bordeaux, ISM, CNRS UMR 5255, Bordeaux INP, Site ENSCBP, 16 Avenue Pey Berland, 33607 Pessac Cedex, France
| | - Véronique Lapeyre
- Univ. Bordeaux, ISM, CNRS UMR 5255, Bordeaux INP, Site ENSCBP, 16 Avenue Pey Berland, 33607 Pessac Cedex, France
| | - Bertrand Goudeau
- Univ. Bordeaux, ISM, CNRS UMR 5255, Bordeaux INP, Site ENSCBP, 16 Avenue Pey Berland, 33607 Pessac Cedex, France
| | | | - Rachel Auzély
- Centre de Recherches sur les Macromolécules Végétales (CERMAV-CNRS), Affiliated with Université Joseph Fourier, 601 rue de la Chimie, 38041 Grenoble, France
| | - Valérie Ravaine
- Univ. Bordeaux, ISM, CNRS UMR 5255, Bordeaux INP, Site ENSCBP, 16 Avenue Pey Berland, 33607 Pessac Cedex, France.
| |
Collapse
|
18
|
Membrane interactions of microgels as carriers of antimicrobial peptides. J Colloid Interface Sci 2018; 513:141-150. [DOI: 10.1016/j.jcis.2017.11.014] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2017] [Revised: 11/01/2017] [Accepted: 11/04/2017] [Indexed: 12/11/2022]
|
19
|
Andersson M, Hansson P. Binding of Lysozyme to Spherical Poly(styrenesulfonate) Gels. Gels 2018; 4:E9. [PMID: 30674786 PMCID: PMC6318605 DOI: 10.3390/gels4010009] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2017] [Revised: 12/30/2017] [Accepted: 01/10/2018] [Indexed: 11/16/2022] Open
Abstract
Polyelectrolyte gels are useful as carriers of proteins and other biomacromolecules in, e.g., drug delivery. The rational design of such systems requires knowledge about how the binding and release are affected by electrostatic and hydrophobic interactions between the components. To this end we have investigated the uptake of lysozyme by weakly crosslinked spherical poly(styrenesulfonate) (PSS) microgels and macrogels by means of micromanipulator assisted light microscopy and small angle X-ray scattering (SAXS) in an aqueous environment. The results show that the binding process is an order of magnitude slower than for cytochrome c and for lysozyme binding to sodium polyacrylate gels under the same conditions. This is attributed to the formation of very dense protein-rich shells in the outer layers of the microgels with low permeability to the protein. The shells in macrogels contain 60 wt % water and nearly charge stoichiometric amounts of lysozyme and PSS in the form of dense complexes of radius 8 nm comprising 30⁻60 lysozyme molecules. With support from kinetic modelling results we propose that the rate of protein binding and the relaxation rate of the microgel are controlled by the protein mass transport through the shell, which is strongly affected by hydrophobic and electrostatic interactions. The mechanism explains, in turn, an observed dependence of the diffusion rate on the apparent degree of crosslinking of the networks.
Collapse
Affiliation(s)
- Martin Andersson
- Department of Pharmacy, Uppsala University, Box 580, SE-75123 Uppsala, Sweden.
| | - Per Hansson
- Department of Pharmacy, Uppsala University, Box 580, SE-75123 Uppsala, Sweden.
| |
Collapse
|
20
|
Singh S, Datta A, Borro BC, Davoudi M, Schmidtchen A, Bhunia A, Malmsten M. Conformational Aspects of High Content Packing of Antimicrobial Peptides in Polymer Microgels. ACS APPLIED MATERIALS & INTERFACES 2017; 9:40094-40106. [PMID: 29087182 DOI: 10.1021/acsami.7b13714] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Successful use of microgels as delivery systems of antimicrobial peptides (AMPs) requires control of factors determining peptide loading and release to/from the microgels as well as of membrane interactions of both microgel particles and released peptides. Addressing these, we here investigate effects of microgel charge density and conformationally induced peptide amphiphilicity on AMP loading and release using detailed nuclear magnetic resonance (NMR) structural studies combined with ellipsometry, isothermal titration calorimetry, circular dichroism, and light scattering. In parallel, consequences of peptide loading and release for membrane interactions and antimicrobial effects were investigated. In doing so, poly(ethyl acrylate-co-methacrylic acid) microgels were found to incorporate the cationic AMPs EFK17a (EFKRIVQRIKDFLRNLV) and its partially d-amino acid-substituted variant EFK17da (E(dF)KR(dI)VQR(dI)KD(dF)LRNLV). Peptide incorporation was found to increase with increasing with microgel charge density and peptide amphiphilicity. After microgel incorporation, which appeared to occur preferentially in the microgel core, NMR showed EFK17a to form a helix with pronounced amphiphilicity, while EFK17da displayed a folded conformation, stabilized by a hydrophobic hub consisting of aromatic/aromatic and aliphatic/aromatic interactions, resulting in much lower amphiphilicity. Under wide ranges of peptide loading, the microgels displayed net negative z-potential. Such negatively charged microgels do not bind to, nor lyse, bacteria-mimicking membranes. Instead, membrane disruption in these systems is mediated largely by peptide release, which in turn is promoted at higher ionic strength and lower peptide amphiphilicity. Analogously, antimicrobial effects against Escherichia coli were found to be dictated by peptide release. Taken together, the findings show that peptide loading, packing, and release strongly affect the performance of microgels as AMP delivery systems, effects that can be tuned by (conformationally induced) peptide amphiphilicity and by microgel charge density.
Collapse
Affiliation(s)
- Shalini Singh
- Department of Pharmacy, Uppsala University , SE-75232 Uppsala, Sweden
| | - Aritreyee Datta
- Department of Biophysics, Bose Institute , P-1/12 CIT Scheme VII (M), Kolkata 700054, India
| | - Bruno C Borro
- Department of Pharmacy, University of Copenhagen , DK-2100 Copenhagen, Denmark
| | - Mina Davoudi
- Division of Dermatology and Venereology, Department of Clinical Sciences, Lund University , SE-221 84 Lund, Sweden
| | - Artur Schmidtchen
- Division of Dermatology and Venereology, Department of Clinical Sciences, Lund University , SE-221 84 Lund, Sweden
- Lee Kong Chian School of Medicine, Nanyang Technological University , 11 Mandalay Road, Singapore 308232, Singapore
- Wound Healing Centre, Bispebjerg University Hospital , DK-2100 Copenhagen, Denmark
| | - Anirban Bhunia
- Department of Biophysics, Bose Institute , P-1/12 CIT Scheme VII (M), Kolkata 700054, India
| | - Martin Malmsten
- Department of Pharmacy, Uppsala University , SE-75232 Uppsala, Sweden
- Department of Pharmacy, University of Copenhagen , DK-2100 Copenhagen, Denmark
| |
Collapse
|
21
|
He B, Ma S, Peng G, He D. TAT-modified self-assembled cationic peptide nanoparticles as an efficient antibacterial agent. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2017; 14:365-372. [PMID: 29170111 DOI: 10.1016/j.nano.2017.11.002] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2016] [Revised: 07/26/2017] [Accepted: 11/04/2017] [Indexed: 12/12/2022]
Abstract
The increasing emergence of drug resistant pathogenic bacteria poses a great challenge to clinical therapy and a threat to public health. Cationic peptides have received great attention for their unique antibacterial mechanism and ability to combat drug-resistant bacteria. In this study, we designed a TAT-modified cationic peptide PA-28 which self-assembled into nanoparticles of about 150 nm. These nanoparticles showed strong antimicrobial activities against both gram-positive and gram-negative bacteria, including drug-resistant bacteria. They were more potent than the unassembled counterpart peptide nonalysine (K9). Their antibacterial mechanism of directly destructing bacterial wall/membrane reduces the possibility of developing bacterial resistance. In vivo anti-infective experiments showed that these nanoparticles were able to penetrate the blood-brain barrier to inhibit bacterial growth in infected brains of rats. In addition, these nanoparticles induced low hemolysis below the minimum inhibitory concentration. Therefore, the peptide designed in this study is a promising and efficient antibacterial agent against bacterial infections.
Collapse
Affiliation(s)
- Bi He
- School of Chemistry and Chemical Engineering, Guangdong Provincial Key Laboratory for Green Chemical Product Technology, South China University of Technology, Guangzhou, China
| | - Shiyi Ma
- School of Chemistry and Chemical Engineering, Guangdong Provincial Key Laboratory for Green Chemical Product Technology, South China University of Technology, Guangzhou, China
| | - Guifu Peng
- Clinical Laboratory, Affiliated Hospital of South China University of Technology, Guangzhou, China
| | - Daohang He
- School of Chemistry and Chemical Engineering, Guangdong Provincial Key Laboratory for Green Chemical Product Technology, South China University of Technology, Guangzhou, China.
| |
Collapse
|
22
|
Xia H, Xu Y, Cheng Z, Cheng Y. Tetramethylpyrazine-Loaded Hydrogels: Preparation, Penetration Through a Subcutaneous-Mucous-Membrane Model, and a Molecular Dynamics Simulation. AAPS PharmSciTech 2017; 18:1720-1727. [PMID: 27743208 DOI: 10.1208/s12249-016-0645-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2016] [Accepted: 10/03/2016] [Indexed: 11/30/2022] Open
Abstract
Tetramethylpyrazine (TMP) was extracted from Ligusticum chuanxiong hort. The compound is known to have a variety of medicinal functions; in particular, it is used for the treatment of cerebral ischemic diseases. TMP-loaded hydrogels offer an excellent preparation with the capacity to bypass the blood-brain barrier, allowing treatment of the brain through intranasal administration. We prepared TMP-loaded hydrogels using carbomer 940 and evaluated the release of TMP from the hydrogel. We determined the release rate using Franz-type diffusion cell experiments with a subcutaneous-mucous-membrane model and also by a molecular dynamics (MD) simulation. In general, the former method was more complicated than the latter was. The dynamic behavior of TMP release from the hydrogel was revealed by analysis of the mean square displacement of the trajectory in the MD simulation. The coefficient of TMP diffusion from the hydrogel was calculated at different temperatures (277, 298, and 310 K) by using MD software. The results showed that the coefficient of diffusion increased with an increase in temperature. This trend was observed both experimentally and in the MD simulation. Therefore, the MD simulation was a complementary method to verify the experimental data.
Collapse
|
23
|
Adroher-Benítez I, Moncho-Jordá A, Dzubiella J. Sorption and Spatial Distribution of Protein Globules in Charged Hydrogel Particles. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2017; 33:4567-4577. [PMID: 28431468 DOI: 10.1021/acs.langmuir.7b00356] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
We have theoretically studied the uptake of a nonuniformly charged biomolecule suitable for representing a globular protein or a drug by a charged hydrogel carrier in the presence of a 1:1 electrolyte. On the basis of the analysis of a physical interaction Hamiltonian including monopolar, dipolar, and Born (self-energy) contributions derived from linear electrostatic theory of the unperturbed homogeneous hydrogel, we have identified five different sorption states of the system, from complete repulsion of the molecule to its full sorption deep inside the hydrogel, passing through metastable and stable surface adsorption states. The results are summarized in state diagrams that also explore the effects of varying the electrolyte concentration, the sign of the net electric charge of the biomolecule, and the role of including excluded-volume (steric) or hydrophobic biomolecule-hydrogel interactions. We show that the dipole moment of the biomolecule is a key parameter controlling the spatial distribution of the globules. In particular, biomolecules with a large dipole moment tend to be adsorbed at the external surface of the hydrogel, even if like-charged, whereas uniformly charged biomolecules tend to partition toward the internal core of an oppositely charged hydrogel. Hydrophobic attraction shifts the states toward the internal sorption of the biomolecule, whereas steric repulsion promotes surface adsorption for oppositely charged biomolecules or for the total exclusion of likely charged ones. Our results establish a guideline for the spatial partitioning of proteins and drugs in hydrogel carriers, tunable by the hydrogel charge, pH, and salt concentration.
Collapse
Affiliation(s)
| | | | - Joachim Dzubiella
- Institut für Physik, Humboldt-Universität zu Berlin , Newtonstr. 15, D-12489 Berlin, Germany
- Institut für Weiche Materie and Funktionale Materialen, Helmholtz-Zentrum Berlin , Hahn-Meitner Platz 1, D-14109 Berlin, Germany
- Multifunctional Biomaterials for Medicine, Helmholtz Virtual Institute , 14513 Teltow, Germany
| |
Collapse
|
24
|
Delivery systems for antimicrobial peptides. Adv Colloid Interface Sci 2017; 242:17-34. [PMID: 28159168 DOI: 10.1016/j.cis.2017.01.005] [Citation(s) in RCA: 144] [Impact Index Per Article: 20.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2016] [Revised: 01/24/2017] [Accepted: 01/24/2017] [Indexed: 12/18/2022]
Abstract
Due to rapidly increasing resistance development against conventional antibiotics, finding novel approaches for the treatment of infections has emerged as a key health issue. Antimicrobial peptides (AMPs) have attracted interest in this context, and there is by now a considerable literature on the identification such peptides, as well as on their optimization to reach potent antimicrobial and anti-inflammatory effects at simultaneously low toxicity against human cells. In comparison, delivery systems for antimicrobial peptides have attracted considerably less interest. However, such delivery systems are likely to play a key role in the development of potent and safe AMP-based therapeutics, e.g., through reducing chemical or biological degradation of AMPs either in the formulation or after administration, by reducing adverse side-effects, by controlling AMP release rate, by promoting biofilm penetration, or through achieving co-localization with intracellular pathogens. Here, an overview is provided of the current understanding of delivery systems for antimicrobial peptides, with special focus on AMP-carrier interactions, as well as consequences of these interactions for antimicrobial and related biological effects of AMP-containing formulations.
Collapse
|
25
|
Nyström L, Malmsten M. Surface-bound microgels - From physicochemical properties to biomedical applications. Adv Colloid Interface Sci 2016; 238:88-104. [PMID: 27865424 DOI: 10.1016/j.cis.2016.11.003] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2016] [Revised: 11/02/2016] [Accepted: 11/04/2016] [Indexed: 12/18/2022]
Abstract
Microgels offer robust and facile approaches for surface modification, as well as opportunities to introduce biological functionality by loading such structures with bioactive agents, e.g., in the context of drug delivery, functional biomaterials, and biosensors. As such, they provide a versatile approach for the design of surfaces with pre-determined characteristics compared to more elaborate bottom-up approaches, such as layer-by-layer deposition and surface-initiated polymerization. In the present overview, properties of surface-bound microgels are discussed, ranging from physical adsorption and covalent grafting in dilute systems, to directed self-assembly, multilayer structures, and composites, as well as loading an release of drugs and other cargo molecules into/from such systems, and biomedical applications of these.
Collapse
|
26
|
Nyström L, Nordström R, Bramhill J, Saunders BR, Álvarez-Asencio R, Rutland MW, Malmsten M. Factors Affecting Peptide Interactions with Surface-Bound Microgels. Biomacromolecules 2016; 17:669-78. [DOI: 10.1021/acs.biomac.5b01616] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Lina Nyström
- Department
of Pharmacy, Uppsala University, P.O. Box 580, SE-752 32 Uppsala, Sweden
| | - Randi Nordström
- Department
of Pharmacy, Uppsala University, P.O. Box 580, SE-752 32 Uppsala, Sweden
| | - Jane Bramhill
- School
of Materials, The University of Manchester, MSS Tower, Manchester, M13 9PL, United Kingdom
| | - Brian R. Saunders
- School
of Materials, The University of Manchester, MSS Tower, Manchester, M13 9PL, United Kingdom
| | - Rubén Álvarez-Asencio
- Department
of Surface and Corrosion Science, School of Chemical Science and Engineering, KTH Royal Institute of Technology, SE-100 44 Stockholm, Sweden
- Institute
for Advanced Studies, IMDEA Nanoscience, 28049 Madrid, Spain
| | - Mark W. Rutland
- Department
of Surface and Corrosion Science, School of Chemical Science and Engineering, KTH Royal Institute of Technology, SE-100 44 Stockholm, Sweden
- SP Technical Research Institute of Sweden, SP Chemistry,
Materials and Surfaces, SE-114
86 Stockholm, Sweden
| | - Martin Malmsten
- Department
of Pharmacy, Uppsala University, P.O. Box 580, SE-752 32 Uppsala, Sweden
| |
Collapse
|
27
|
Gernandt J, Hansson P. Hysteresis in the Surfactant-Induced Volume Transition of Hydrogels. J Phys Chem B 2015; 119:1717-25. [DOI: 10.1021/jp5087416] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jonas Gernandt
- Department
of Pharmacy, Uppsala University, Box
580, SE-75123 Uppsala, Sweden
| | - Per Hansson
- Department
of Pharmacy, Uppsala University, Box
580, SE-75123 Uppsala, Sweden
| |
Collapse
|
28
|
Ji S, Lu J, Liu Z, Srivastava D, Song A, Liu Y, Lee I. Dynamic encapsulation of hydrophilic nisin in hydrophobic poly (lactic acid) particles with controlled morphology by a single emulsion process. J Colloid Interface Sci 2014; 423:85-93. [DOI: 10.1016/j.jcis.2014.02.025] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2013] [Revised: 02/13/2014] [Accepted: 02/15/2014] [Indexed: 10/25/2022]
|
29
|
Such-Sanmartín G, Ventura-Espejo E, Jensen ON. Depletion of abundant plasma proteins by poly(N-isopropylacrylamide-acrylic acid) hydrogel particles. Anal Chem 2014; 86:1543-50. [PMID: 24428553 DOI: 10.1021/ac403749j] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Protein and proteome analysis of human blood plasma presents a challenge to current analytical platforms such as mass spectrometry (MS). High abundance plasma proteins interfere with detection of potential protein biomarkers that are often 3-10 orders of magnitude lower in concentration. We report the application of pH-sensitive poly(N-isopropylacrylamide-acrylic acid) hydrogel particles for removal of abundant plasma proteins, prior to proteome analysis by MS. Protein depletion occurs by two separate mechanisms: (1) hydrogel particles incubated with low concentrations of plasma capture abundant proteins at higher efficiency than low abundance proteins, which are enriched in the supernatants, whereas (2) hydrogel particles incubated with high concentrations of plasma capture and irreversibly trap abundant proteins. During the elution step, irreversibly trapped proteins remain captured while low abundance proteins are released and recovered in the eluate. We developed a series of distinct depletion protocols that proved useful for sample depletion and fractionation and facilitated targeted analysis of putative biomarkers such as IGF1-2, IBP2-7, ALS, KLK6-7, ISK5, and PLF4 by selected reaction monitoring (SRM) liquid chromatography (LC)-MS/MS. This novel use of hydrogel particles opens new perspectives for biomarker analysis based on mass spectrometry.
Collapse
Affiliation(s)
- Gerard Such-Sanmartín
- Department of Biochemistry and Molecular Biology, University of Southern Denmark , Odense M, DK-5230, Denmark
| | | | | |
Collapse
|
30
|
Singh S, Papareddy P, Kalle M, Schmidtchen A, Malmsten M. Effects of linear amphiphilicity on membrane interactions of C-terminal thrombin peptides. RSC Adv 2014. [DOI: 10.1039/c4ra05420b] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Highly amphiphilic WFF25 forms aggregates in solution and at membranes. The terminal W/F stretch provides membrane selectivity for WFF25. Pronounced LTA and LPS interactions influence bactericidal effects.
Collapse
Affiliation(s)
- Shalini Singh
- Department of Pharmacy
- Uppsala University
- Uppsala, Sweden
| | - Praveen Papareddy
- Division of Dermatology and Venereology
- Department of Clinical Sciences
- Lund University
- SE-221 84 Lund, Sweden
| | - Martina Kalle
- Division of Dermatology and Venereology
- Department of Clinical Sciences
- Lund University
- SE-221 84 Lund, Sweden
| | - Artur Schmidtchen
- Division of Dermatology and Venereology
- Department of Clinical Sciences
- Lund University
- SE-221 84 Lund, Sweden
- Dermatology
| | | |
Collapse
|
31
|
Importance of lipopolysaccharide aggregate disruption for the anti-endotoxic effects of heparin cofactor II peptides. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2013; 1828:2709-19. [DOI: 10.1016/j.bbamem.2013.06.015] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2013] [Revised: 06/12/2013] [Accepted: 06/14/2013] [Indexed: 11/21/2022]
|
32
|
Månsson R, Frenning G, Malmsten M. Factors Affecting Enzymatic Degradation of Microgel-Bound Peptides. Biomacromolecules 2013; 14:2317-25. [DOI: 10.1021/bm400431f] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Ronja Månsson
- Department
of Pharmacy, Uppsala University, P.O. Box
580, SE-751 23 Uppsala, Sweden
| | - Göran Frenning
- Department
of Pharmacy, Uppsala University, P.O. Box
580, SE-751 23 Uppsala, Sweden
| | - Martin Malmsten
- Department
of Pharmacy, Uppsala University, P.O. Box
580, SE-751 23 Uppsala, Sweden
| |
Collapse
|
33
|
Singh S, Kalle M, Papareddy P, Schmidtchen A, Malmsten M. Lipopolysaccharide Interactions of C-Terminal Peptides from Human Thrombin. Biomacromolecules 2013; 14:1482-92. [DOI: 10.1021/bm400150c] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Shalini Singh
- Department of Pharmacy, Uppsala University, SE-75123, Uppsala,
Sweden
| | - Martina Kalle
- Division of Dermatology
and
Venereology, Department of Clinical Sciences, Lund University, SE-221 84 Lund, Sweden
| | - Praveen Papareddy
- Division of Dermatology
and
Venereology, Department of Clinical Sciences, Lund University, SE-221 84 Lund, Sweden
| | - Artur Schmidtchen
- Division of Dermatology
and
Venereology, Department of Clinical Sciences, Lund University, SE-221 84 Lund, Sweden
| | - Martin Malmsten
- Department of Pharmacy, Uppsala University, SE-75123, Uppsala,
Sweden
| |
Collapse
|
34
|
Singh S, Kasetty G, Schmidtchen A, Malmsten M. Membrane and lipopolysaccharide interactions of C-terminal peptides from S1 peptidases. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2012; 1818:2244-51. [DOI: 10.1016/j.bbamem.2012.03.017] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2012] [Revised: 03/23/2012] [Accepted: 03/26/2012] [Indexed: 11/30/2022]
|
35
|
Hansson P, Bysell H, Månsson R, Malmsten M. Peptide–Microgel Interactions in the Strong Coupling Regime. J Phys Chem B 2012; 116:10964-75. [DOI: 10.1021/jp306121h] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Per Hansson
- Department
of Pharmacy, Uppsala University, P.O. Box
580, SE-751 23 Uppsala, Sweden
| | - Helena Bysell
- Department
of Pharmacy, Uppsala University, P.O. Box
580, SE-751 23 Uppsala, Sweden
| | - Ronja Månsson
- Department
of Pharmacy, Uppsala University, P.O. Box
580, SE-751 23 Uppsala, Sweden
| | - Martin Malmsten
- Department
of Pharmacy, Uppsala University, P.O. Box
580, SE-751 23 Uppsala, Sweden
| |
Collapse
|
36
|
Zhang Y, Gemeinhart RA. Improving matrix metalloproteinase-2 specific response of a hydrogel system using electrophoresis. Int J Pharm 2012; 429:31-7. [PMID: 22440150 DOI: 10.1016/j.ijpharm.2012.03.012] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2012] [Revised: 02/25/2012] [Accepted: 03/06/2012] [Indexed: 11/19/2022]
Abstract
Matrix metalloproteinases (MMPs) overexpression plays a critical role in cancer invasion and metastasis. We utilized this key feature of tumor microenvironment to develop a disease-stimuli triggered drug delivery system. Poly(acrylic acid) hydrogels were synthesized by UV polymerization and pendant MMP-2 sensitive peptides (Gly-Pro-Leu-Gly-Val-Arg-Gly-Lys) conjugated throughout using EDC/sulfo-NHS chemistry. There were significantly more peptides released in the presence of MMP-2 compared with the control groups. The released peptide fragments were analyzed by HPLC and MALDI-MS and confirmed to be the expected fragments. In order to avoid nonspecific release of nonconjugated (i.e. unreacted) peptides, a novel method of electrophoretic washing was developed disrupting the strong electrostatic interactions between the peptides and the pendant groups of the hydrogel. After electrophoresis, the nonspecific peptide release in the absence of MMP-2 was minimized. This newly developed purification system significantly improved the control of release to be in response of the magnitude of the stimuli, i.e. MMP. Specifically, peptides were released proportionally to the concentration of MMP-2 present. Now that many of the design parameters have been examined, anticancer drugs will be conjugated to the MMP sensitive peptide linkers with the goal of implantation in a tumor void releasing anticancer reagent in response to elevated level of MMPs.
Collapse
Affiliation(s)
- Yu Zhang
- Department of Biopharmaceutical Sciences, University of Illinois, Chicago, IL 60612-7231, USA
| | | |
Collapse
|
37
|
Effects of peptide cyclization on the interaction with oppositely charged microgels. Colloids Surf A Physicochem Eng Asp 2011. [DOI: 10.1016/j.colsurfa.2011.01.029] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
38
|
Eckert R. Road to clinical efficacy: challenges and novel strategies for antimicrobial peptide development. Future Microbiol 2011; 6:635-51. [PMID: 21707311 DOI: 10.2217/fmb.11.27] [Citation(s) in RCA: 146] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Since the discovery of magainins, cecropins and defensins 30 years ago, antimicrobial peptides (AMPs) have been hailed as a potential solution to the dearth of novel antibiotic development. AMPs have shown robust activity against a wide variety of pathogens, including drug-resistant bacteria. Unlike small-molecule antibiotics, however, AMPs have failed to translate this success to the clinic. Only the polymyxins, gramicidins, nisin and daptomycin are currently approved for medical use; the latter is the only example to have been developed in the last several decades. Nonetheless, researchers continue to isolate, modify and develop novel AMPs for therapeutic applications. Efforts have focused on increasing stability, reducing cytotoxicity, improving antimicrobial activity and incorporating AMPs in novel formulations, including nanoscale particles. As peptide synthesis and recombinant production methodologies improve, and more relevant bioassays become available, it becomes increasingly likely that AMPs will break the regulatory barrier and enter the marketplace as valuable antimicrobial weapons in the next 10 years.
Collapse
Affiliation(s)
- Randal Eckert
- C3 Jian, Inc., 423 Hindry Ave, Unit D, Inglewood, CA 90301, USA.
| |
Collapse
|
39
|
Microgels and microcapsules in peptide and protein drug delivery. Adv Drug Deliv Rev 2011; 63:1172-85. [PMID: 21914455 DOI: 10.1016/j.addr.2011.08.005] [Citation(s) in RCA: 159] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2011] [Revised: 08/16/2011] [Accepted: 08/30/2011] [Indexed: 11/20/2022]
Abstract
The present review focuses on the interaction of microgels and microcapsules with biological macromolecules, particularly peptides and proteins, as well as drug delivery applications of such systems. Results from recent studies on factors affecting peptide/protein binding to, and release from, microgels and related systems are discussed, including effects of network properties, as well as protein aggregation, peptide length, hydrophobicity and charge (distributions), secondary structure, and cyclization. Effects of ambient conditions (pH, ionic strength, temperature, etc.) are also discussed, all with focus on factors of importance for the performance of microgel and microcapsule delivery systems for biomacromolecular drugs.
Collapse
|
40
|
Månsson R, Bysell H, Hansson P, Schmidtchen A, Malmsten M. Effects of Peptide Secondary Structure on the Interaction with Oppositely Charged Microgels. Biomacromolecules 2010; 12:419-24. [DOI: 10.1021/bm101165e] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Ronja Månsson
- Department of Pharmacy, Uppsala University, P.O. Box 580, SE-751 23 Uppsala, Sweden, and Section of Dermatology and Venerology, Department of Clinical Sciences, Lund University, SE-221 84 Lund, Sweden
| | - Helena Bysell
- Department of Pharmacy, Uppsala University, P.O. Box 580, SE-751 23 Uppsala, Sweden, and Section of Dermatology and Venerology, Department of Clinical Sciences, Lund University, SE-221 84 Lund, Sweden
| | - Per Hansson
- Department of Pharmacy, Uppsala University, P.O. Box 580, SE-751 23 Uppsala, Sweden, and Section of Dermatology and Venerology, Department of Clinical Sciences, Lund University, SE-221 84 Lund, Sweden
| | - Artur Schmidtchen
- Department of Pharmacy, Uppsala University, P.O. Box 580, SE-751 23 Uppsala, Sweden, and Section of Dermatology and Venerology, Department of Clinical Sciences, Lund University, SE-221 84 Lund, Sweden
| | - Martin Malmsten
- Department of Pharmacy, Uppsala University, P.O. Box 580, SE-751 23 Uppsala, Sweden, and Section of Dermatology and Venerology, Department of Clinical Sciences, Lund University, SE-221 84 Lund, Sweden
| |
Collapse
|
41
|
Malmsten M, Bysell H, Hansson P. Biomacromolecules in microgels — Opportunities and challenges for drug delivery. Curr Opin Colloid Interface Sci 2010. [DOI: 10.1016/j.cocis.2010.05.016] [Citation(s) in RCA: 118] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
|
42
|
Designing carbohydrate nanoparticles for prolonged efficacy of antimicrobial peptide. J Control Release 2010; 150:150-6. [PMID: 21115078 DOI: 10.1016/j.jconrel.2010.11.024] [Citation(s) in RCA: 77] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2010] [Revised: 11/15/2010] [Accepted: 11/21/2010] [Indexed: 11/20/2022]
Abstract
In this work, carbohydrate nanoparticles were created to prolong the efficacy of antimicrobial peptide against pathogens. Nisin and Listeria monocytogenes were used as the peptide and pathogen models, respectively, and phytoglycogen (PG)-based nanoparticles were developed as carriers of nisin. PG from su1 mutant maize was subjected to β-amylolysis as well as subsequent succinate or octenyl succinate substitutions. The goal was to minimize the loss of peptide during storage and meanwhile realize an effective release in the presence of bacteria. The capabilities of PG derivatives as carriers of nisin were evaluated using centrifugal ultrafiltration, zeta-potential, and the initial availability of nisin against L. monocytogenes. All methods indicated that nisin loading was favored by a high degree of substitution (DS), presence of hydrophobic octenyl moiety, and β-amylolysis of PG nanoparticles. To evaluate the prolonged nisin efficacy, preparations containing nisin and PG derivatives were loaded into a BHI-agar deep-well model (mimicking nisin depletion at the nutrient-containing surface). The residual inhibitory activities of preparations against L. monocytogenes were monitored during 21 days of storage at 4 °C. The results showed that all PG derivatives led to the prolonged retention of nisin activity and the longest retention was associated with high DS, β-amylolysis, and octenyl succinate. Evidently, both electrostatic and hydrophobic interactions are the driving forces of nisin adsorption, and the glucan structure at the nanoparticle surface also affects nisin loading and retention during storage.
Collapse
|
43
|
Johansson C, Gernandt J, Bradley M, Vincent B, Hansson P. Interaction between lysozyme and colloidal poly(NIPAM-co-acrylic acid) microgels. J Colloid Interface Sci 2010; 347:241-51. [DOI: 10.1016/j.jcis.2010.03.072] [Citation(s) in RCA: 61] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2010] [Revised: 03/29/2010] [Accepted: 03/31/2010] [Indexed: 10/19/2022]
|
44
|
Bysell H, Hansson P, Malmsten M. Effect of Charge Density on the Interaction between Cationic Peptides and Oppositely Charged Microgels. J Phys Chem B 2010; 114:7207-15. [DOI: 10.1021/jp1016664] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Helena Bysell
- Department of Pharmacy, Uppsala University, P.O. Box 580, SE-751 23 Uppsala, Sweden
| | - Per Hansson
- Department of Pharmacy, Uppsala University, P.O. Box 580, SE-751 23 Uppsala, Sweden
| | - Martin Malmsten
- Department of Pharmacy, Uppsala University, P.O. Box 580, SE-751 23 Uppsala, Sweden
| |
Collapse
|