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Warne CM, Fadlallah S, Allais F, Guebitz GM, Pellis A. Controlled Enzymatic Synthesis of Polyesters Based on a Cellulose-Derived Triol Monomer: A Design of Experiment Approach. CHEMSUSCHEM 2024; 17:e202301841. [PMID: 38545821 DOI: 10.1002/cssc.202301841] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Revised: 03/26/2024] [Indexed: 05/01/2024]
Abstract
Regioselective enzymatic polycondensation of the bio-based cellulose derived polyol, Triol-citro, and dimethyl adipate using Candida antarctica Lipase B (CaLB) was investigated. A Design of Experiment approach with MODDE® Pro 13 was used to determine important factors in the branching behavior of this polymer, and reactant ratio, temperature, reaction time and enzyme wt % were the studied factors. Multifunctional polyesters with pendant hydroxy groups were synthesized and fully characterized using 2D NMR techniques to determine degree of branching. Branching was minimal, with a maximum of 16 % observed, and monomer ratio, temperature and reaction time were all determined to be significant factors. In this work, Mn of up to 13 kDa were achieved, while maintaining degree of branching below 15 %, resulting in a linear polyester with the potential to be further functionalized.
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Affiliation(s)
- Cicely M Warne
- ACIB GmbH, Konrad-Lorenz-Strasse 20, 3430, Tulln an der Donau, Austria
- University of Natural Resources and Life Sciences, Vienna, Department of Agrobiotechnology, IFA-Tulln, Institute of Environmental Biotechnology, Konrad-Lorenz-Strasse 20, 3430, Tulln an der Donau, Austria
| | - Sami Fadlallah
- URD Agro-Biotechnologies Industrielles (ABI), CEBB, AgroParisTech, Pomacle, 51110, France
| | - Florent Allais
- URD Agro-Biotechnologies Industrielles (ABI), CEBB, AgroParisTech, Pomacle, 51110, France
| | - Georg M Guebitz
- ACIB GmbH, Konrad-Lorenz-Strasse 20, 3430, Tulln an der Donau, Austria
- University of Natural Resources and Life Sciences, Vienna, Department of Agrobiotechnology, IFA-Tulln, Institute of Environmental Biotechnology, Konrad-Lorenz-Strasse 20, 3430, Tulln an der Donau, Austria
| | - Alessandro Pellis
- University of Natural Resources and Life Sciences, Vienna, Department of Agrobiotechnology, IFA-Tulln, Institute of Environmental Biotechnology, Konrad-Lorenz-Strasse 20, 3430, Tulln an der Donau, Austria
- University of Genova, Department of Chemistry and Industrial Chemistry, via Dodecaneso 31, 16146, Genova, GE, Italy
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2
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Gazińska MA, Krokos A. Tunable structure and linear viscoelastic properties of poly(glycerol adipate urethane)-based elastomeric composites for tissue regeneration. J Mech Behav Biomed Mater 2024; 153:106493. [PMID: 38484428 DOI: 10.1016/j.jmbbm.2024.106493] [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: 01/09/2024] [Revised: 02/21/2024] [Accepted: 03/01/2024] [Indexed: 03/26/2024]
Abstract
Elastomeric biocomposites based on poly(glycerol adipate urethane) and hydroxyapatite were fabricated for tissue regeneration. The poly(glycerol adipate urethane) (PGAU) elastomeric composite matrices were obtained by chemical crosslinking of the poly(glycerol adipate) prepolymer (pPGA) with diisocyanate derivative of L-lysine. Two series of composites varying in the amount of L-lysine diisocyanate ethyl ester (LDI) used as a crosslinking agent were manufactured. As a ceramic filler both unmodified and L-lysine surface-modified hydroxyapatite (HAP) particles were used. The novelty of our research consists in the manufactured elastomeric materials and characterization of their linear viscoelastic (LVE) properties. The LVE properties of the composites were investigated by means of dynamic thermomechanical analysis. Frequency sweep and amplitude sweep measurements were performed in shear mode. The influence of the crosslinking agent (LDI) amount, HAP content and surface modification of HAP on the LVE properties of the composites was determined based on the analysis of the master curves of storage (G') and loss (G″) moduli and of tanδ of the composites. Depending on the amount of LDI, HAP and surface modification, the materials differ in the values of rubber elasticity plateau modulus (G0) and G' and G″ determined at selected shear frequencies and at the glassy state. G0 ranges from 278 kPa to 3.98 MPa, G' in the glassy state is within the range of 219 MPa-459 MPa. The G0 values of the PGAU-based composites are within the stiffness range of soft tissue. In view of the choice of HAP as the ceramic component and the G0 values, elastomeric composites have the potential to be used as filling materials in small bone defects (due to their mechanical similarity to osteoid) as well as materials for cartilage tissue regeneration.
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Affiliation(s)
- Małgorzata Anna Gazińska
- Department of Polymer Engineering and Technology, Faculty of Chemistry, Wrocław University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370, Wrocław, Poland.
| | - Anna Krokos
- Department of Polymer Engineering and Technology, Faculty of Chemistry, Wrocław University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370, Wrocław, Poland
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3
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Axioti E, Dixon EG, Reynolds-Green M, Alexander ECH, Brugnoli B, Keddie DJ, Couturaud B, Suksiriworapong J, Swainson SME, Francolini I, Howdle SM, Jacob PL, Cavanagh RJ, Chauhan VM, Taresco V. Glycerol- and diglycerol-based polyesters: Evaluation of backbone alterations upon nano-formulation performance. Colloids Surf B Biointerfaces 2024; 236:113828. [PMID: 38452625 DOI: 10.1016/j.colsurfb.2024.113828] [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: 11/18/2023] [Revised: 02/20/2024] [Accepted: 02/27/2024] [Indexed: 03/09/2024]
Abstract
Despite the success of polyethylene glycol-based (PEGylated) polyesters in the drug delivery and biomedical fields, concerns have arisen regarding PEG's immunogenicity and limited biodegradability. In addition, inherent limitations, including limited chemical handles as well as highly hydrophobic nature, can restrict their effectiveness in physiological conditions of the polyester counterpart. To address these matters, an increasing amount of research has been focused towards identifying alternatives to PEG. One promising strategy involves the use of bio-derived polyols, such as glycerol. In particular, glycerol is a hydrophilic, non-toxic, untapped waste resource and as other polyols, can be incorporated into polyesters via enzymatic catalysis routes. In the present study, a systematic screening is conducted focusing on the incorporation of 1,6-hexanediol (Hex) (hydrophobic diol) into both poly(glycerol adipate) (PGA) and poly(diglycerol adipate) (PDGA) at different (di)glycerol:hex ratios (30:70; 50:50 and 70:30 mol/mol) and its effect on purification upon NPs formation. By varying the amphiphilicity of the backbone, we demonstrated that minor adjustments influence the NPs formation, NPs stability, drug encapsulation, and degradation of these polymers, despite the high chemical similarity. Moreover, the best performing materials have shown good biocompatibility in both in vitro and in vivo (whole organism) tests. As preliminary result, the sample containing diglycerol and Hex in a 70:30 ratio, named as PDGA-Hex 30%, has shown to be the most promising candidate in this small library analysed. It demonstrated comparable stability to the glycerol-based samples in various media but exhibited superior encapsulation efficiency of a model hydrophobic dye. This in-depth investigation provides new insights into the design and modification of biodegradable (di)glycerol-based polyesters, potentially paving the way for more effective and sustainable PEG-free drug delivery nano-systems in the pharmaceutical and biomedical fields.
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Affiliation(s)
- Eleni Axioti
- School of Chemistry, University Park, Nottingham NG7 2RD, United Kingdom
| | - Emily G Dixon
- School of Chemistry, University Park, Nottingham NG7 2RD, United Kingdom
| | | | | | - Benedetta Brugnoli
- Dept. of Chemistry, Sapienza University of Rome, Piazzale A. Moro 5, Rome 00185, Italy
| | - Daniel J Keddie
- School of Chemistry, University Park, Nottingham NG7 2RD, United Kingdom
| | - Benoit Couturaud
- Institut de Chimie et des Matériaux Paris-Est (ICMPE), CNRS, University Paris Est Créteil, UMR 7182, 2 Rue Henri Dunant, Thiais 94320, France
| | | | - Sadie M E Swainson
- Oral Product Development, Pharmaceutical Technology & Development, Operations, AstraZeneca, Macclesfield SK10 2NA, United Kingdom
| | - Iolanda Francolini
- Dept. of Chemistry, Sapienza University of Rome, Piazzale A. Moro 5, Rome 00185, Italy
| | - Steven M Howdle
- School of Chemistry, University Park, Nottingham NG7 2RD, United Kingdom
| | - Philippa L Jacob
- School of Chemistry, University Park, Nottingham NG7 2RD, United Kingdom.
| | - Robert J Cavanagh
- School of Pharmacy, University of Nottingham, Boots Sciences Building, University Park, Nottingham NG7 2RD, United Kingdom.
| | - Veeren M Chauhan
- School of Pharmacy, University of Nottingham, Boots Sciences Building, University Park, Nottingham NG7 2RD, United Kingdom.
| | - Vincenzo Taresco
- School of Chemistry, University Park, Nottingham NG7 2RD, United Kingdom.
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4
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Kuperkar K, Atanase LI, Bahadur A, Crivei IC, Bahadur P. Degradable Polymeric Bio(nano)materials and Their Biomedical Applications: A Comprehensive Overview and Recent Updates. Polymers (Basel) 2024; 16:206. [PMID: 38257005 PMCID: PMC10818796 DOI: 10.3390/polym16020206] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2023] [Revised: 01/03/2024] [Accepted: 01/05/2024] [Indexed: 01/24/2024] Open
Abstract
Degradable polymers (both biomacromolecules and several synthetic polymers) for biomedical applications have been promising very much in the recent past due to their low cost, biocompatibility, flexibility, and minimal side effects. Here, we present an overview with updated information on natural and synthetic degradable polymers where a brief account on different polysaccharides, proteins, and synthetic polymers viz. polyesters/polyamino acids/polyanhydrides/polyphosphazenes/polyurethanes relevant to biomedical applications has been provided. The various approaches for the transformation of these polymers by physical/chemical means viz. cross-linking, as polyblends, nanocomposites/hybrid composites, interpenetrating complexes, interpolymer/polyion complexes, functionalization, polymer conjugates, and block and graft copolymers, are described. The degradation mechanism, drug loading profiles, and toxicological aspects of polymeric nanoparticles formed are also defined. Biomedical applications of these degradable polymer-based biomaterials in and as wound dressing/healing, biosensors, drug delivery systems, tissue engineering, and regenerative medicine, etc., are highlighted. In addition, the use of such nano systems to solve current drug delivery problems is briefly reviewed.
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Affiliation(s)
- Ketan Kuperkar
- Department of Chemistry, Sardar Vallabhbhai National Institute of Technology (SVNIT), Ichchhanath, Piplod, Surat 395007, Gujarat, India;
| | - Leonard Ionut Atanase
- Faculty of Medical Dentistry, “Apollonia” University of Iasi, 700511 Iasi, Romania
- Academy of Romanian Scientists, 050045 Bucharest, Romania
| | - Anita Bahadur
- Department of Zoology, Sir PT Sarvajanik College of Science, Surat 395001, Gujarat, India;
| | - Ioana Cristina Crivei
- Department of Public Health, Faculty of Veterinary Medicine, “Ion Ionescu de la Brad” University of Life Sciences, 700449 Iasi, Romania;
| | - Pratap Bahadur
- Department of Chemistry, Veer Narmad South Gujarat University (VNSGU), Udhana-Magdalla Road, Surat 395007, Gujarat, India;
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5
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Suksiriworapong J, Achayawat C, Juangrattanakamjorn P, Taresco V, Crucitti VC, Sakchaisri K, Bunsupa S. Modification of Poly(Glycerol Adipate) with Tocopherol and Cholesterol Modulating Nanoparticle Self-Assemblies and Cellular Responses of Triple-Negative Breast Cancer Cells to SN-38 Delivery. Pharmaceutics 2023; 15:2100. [PMID: 37631315 PMCID: PMC10459774 DOI: 10.3390/pharmaceutics15082100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Revised: 07/27/2023] [Accepted: 08/05/2023] [Indexed: 08/27/2023] Open
Abstract
This study aimed to fabricate new variations of glycerol-based polyesters by grafting poly(glycerol adipate) (PGA) with hydrophobic bioactive moieties, tocopherol (TOC), and cholesterol (CHO). Their effects on nanoparticle (NP) formation, drug release, and cellular responses in cancer and normal cells were evaluated. CHO and TOC were successfully grafted onto PGA backbones with 30% and 50% mole grafting. Increasing the percentage of mole grafting in both molecules increased the glass transition temperature and water contact angle of the final polymers but decreased the critical micelle concentration of the formulated particles. PGA-TOC NPs reduced the proliferation of MDA-MB-231 cancer cells. However, they enhanced the proliferation of primary dermal fibroblasts within a specific concentration range. PGA-CHO NPs minimally affected the growth of cancer and normal cells. Both types of NPs did not affect apoptosis or the cell cycle of cancer cells. PGA-CHO and PGA-TOC NPs were able to entrap SN-38, a hydrophobic anticancer drug, with a particle size <200 nm. PGA-CHO NPs had a higher drug loading capacity and a greater drug release than PGA-TOC NPs. However, SN-38-loaded PGA-TOC NPs showed higher toxicity than SN-38 and SN-38-loaded PGA-CHO NPs due to the combined effects of antiproliferation and higher cellular uptake. Compared with SN-38, the drug-loaded NPs more profoundly induced sub-G1 in the cell cycle analysis and apoptosis of cancer cells in a similar pattern. Therefore, PGA-CHO and PGA-TOC polymers have potential applications as delivery systems for anticancer drugs.
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Affiliation(s)
| | - Chittin Achayawat
- Department of Pharmacy, Faculty of Pharmacy, Mahidol University, Bangkok 10400, Thailand
| | | | - Vincenzo Taresco
- School of Chemistry, University of Nottingham, University Park, Nottingham NG7 2RD, UK
| | - Valentina Cuzzucoli Crucitti
- Centre for Additive Manufacturing and Department of Chemical and Environmental Engineering, University of Nottingham, Nottingham NG7 2RD, UK
| | - Krisada Sakchaisri
- Department of Pharmacology, Faculty of Pharmacy, Mahidol University, Bangkok 10400, Thailand
| | - Somnuk Bunsupa
- Department of Pharmacognosy, Faculty of Pharmacy, Mahidol University, Bangkok 10400, Thailand
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6
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Hevilla V, Sonseca Á, Fernández-García M. Straightforward Enzymatic Methacrylation of Poly(Glycerol Adipate) for Potential Applications as UV Curing Systems. Polymers (Basel) 2023; 15:3050. [PMID: 37514438 PMCID: PMC10383392 DOI: 10.3390/polym15143050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Revised: 07/07/2023] [Accepted: 07/11/2023] [Indexed: 07/30/2023] Open
Abstract
Enzymatic one-pot synthesis procedures in a one-step and two-step monomers addition were developed to obtain poly(glycerol adipate) macromers with methacrylate end-functional groups under the presence of 1 and 3 wt% of Candida antarctica lipase B (CALB). Glycerol, divinyl adipate, and vinyl methacrylate were enzymatically reacted (vinyl methacrylate was either present from the beginning in the monomers solution or slowly dropped after 6 h of reaction) in tetrahydrofuran (THF) at 40 °C over 48 h. Macromers with a methacrylate end groups fraction of ≈52% in a simple one-pot one-step procedure were obtained with molecular weights (Mn) of ≈7500-7900 g/mol. The obtained products under the one-pot one-step and two steps synthesis procedures carried out using 1 and 3 wt% of a CALB enzymatic catalyst were profusely characterized by NMR (1H and 13C), MALDI-TOF MS, and SEC. The methacrylate functional macromers obtained with the different procedures and 1 wt% of CALB were combined with an Irgacure® 369 initiator to undergo homopolymerization under UV irradiation for 10 and 30 min, in order to test their potential to obtain amorphous networks within minutes with similar properties to those typically obtained by complex acrylation/methacrylation procedures, which need multiple purification steps and harsh reagents such as acyl chlorides. To the best of our knowledge, this is the first time that it has been demonstrated that the obtention of methacrylate-functional predominantly linear macromers based on poly(glycerol adipate) is able to be UV crosslinked in a simple one-step procedure.
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Affiliation(s)
- Víctor Hevilla
- Instituto de Ciencia y Tecnología de Polímeros (ICTP-CSIC), C/Juan de la Cierva, 3, 28006 Madrid, Spain
- Interdisciplinary Platform for "Sustainable Plastics towards a Circular Economy" (SUSPLAST-CSIC), 28006 Madrid, Spain
| | - Águeda Sonseca
- Instituto de Tecnología de Materiales, Universitat Politècnica de València, Camino de Vera, s/n, 46022 Valencia, Spain
| | - Marta Fernández-García
- Instituto de Ciencia y Tecnología de Polímeros (ICTP-CSIC), C/Juan de la Cierva, 3, 28006 Madrid, Spain
- Interdisciplinary Platform for "Sustainable Plastics towards a Circular Economy" (SUSPLAST-CSIC), 28006 Madrid, Spain
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7
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Jacob PL, Brugnoli B, Del Giudice A, Phan H, Chauhan VM, Beckett L, Gillis RB, Moloney C, Cavanagh RJ, Krumins E, Reynolds-Green M, Lentz JC, Conte C, Cuzzucoli Crucitti V, Couturaud B, Galantini L, Francolini I, Howdle SM, Taresco V. Poly (diglycerol adipate) variants as enhanced nanocarrier replacements in drug delivery applications. J Colloid Interface Sci 2023; 641:1043-1057. [PMID: 36996683 DOI: 10.1016/j.jcis.2023.03.124] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Revised: 02/17/2023] [Accepted: 03/19/2023] [Indexed: 03/30/2023]
Abstract
Sustainably derived poly(glycerol adipate) (PGA) has been deemed to deliver all the desirable features expected in a polymeric scaffold for drug-delivery, including biodegradability, biocompatibility, self-assembly into nanoparticles (NPs) and a functionalisable pendant group. Despite showing these advantages over commercial alkyl polyesters, PGA suffers from a series of key drawbacks caused by poor amphiphilic balance. This leads to weak drug-polymer interactions and subsequent low drug-loading in NPs, as well as low NPs stability. To overcome this, in the present work, we applied a more significant variation of the polyester backbone while maintaining mild and sustainable polymerisation conditions. We have investigated the effect of the variation of both hydrophilic and hydrophobic segments upon physical properties and drug interactions as well as self-assembly and NPs stability. For the first time we have replaced glycerol with the more hydrophilic diglycerol, as well as adjusting the final amphiphilic balance of the polyester repetitive units by incorporating the more hydrophobic 1,6-n-hexanediol (Hex). The properties of the novel poly(diglycerol adipate) (PDGA) variants have been compared against known polyglycerol-based polyesters. Interestingly, while the bare PDGA showed improved water solubility and diminished self-assembling ability, the Hex variation demonstrated enhanced features as a nanocarrier. In this regard, PDGAHex NPs were tested for their stability in different environments and for their ability to encode enhanced drug loading. Moreover, the novel materials have shown good biocompatibility in both in vitro and in vivo (whole organism) experiments.
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Affiliation(s)
- Philippa L Jacob
- School of Chemistry, University Park, Nottingham NG7 2RD, United Kingdom
| | - Benedetta Brugnoli
- Dept. of Chemistry, Sapienza University of Rome, Piazzale A. Moro 5, 00185 Rome, Italy
| | | | - Hien Phan
- Institut de Chimie et des Matériaux Paris-Est, Université de Paris-Est Créteil, CNRS UMR 7182, 2 rue Henri Dunant, 94320 Thiais, France
| | - Veeren M Chauhan
- Laboratory of Biophysics and Surface Analysis, School of Pharmacy, University of Nottingham, Boots Sciences Building, University Park, Nottingham NG7 2RD, United Kingdom
| | - Laura Beckett
- Laboratory of Biophysics and Surface Analysis, School of Pharmacy, University of Nottingham, Boots Sciences Building, University Park, Nottingham NG7 2RD, United Kingdom
| | - Richard B Gillis
- National Centre for Macromolecular Hydrodynamics, University of Nottingham, Sutton Bonington LE12 5RD, United Kingdom; Biomaterials Group, School of Biosciences, University of Nottingham, Sutton Bonington LE12 5RD, United Kingdom; College of Business, Technology and Engineering, Sheffield Hallam University, Food and Nutrition Group, Sheffield S1 1WB, United Kingdom
| | - Cara Moloney
- School of Medicine, BioDiscovery Institute-3, University Park, Nottingham NG7 2RD, United Kingdom
| | - Robert J Cavanagh
- School of Medicine, BioDiscovery Institute-3, University Park, Nottingham NG7 2RD, United Kingdom
| | - Eduards Krumins
- School of Chemistry, University Park, Nottingham NG7 2RD, United Kingdom
| | | | - Joachim C Lentz
- School of Chemistry, University Park, Nottingham NG7 2RD, United Kingdom
| | - Claudia Conte
- Department of Pharmacy, University of Napoli Federico II, Napoli, Italy
| | - Valentina Cuzzucoli Crucitti
- Centre for Additive Manufacturing and Department of Chemical and Environmental Engineering, Faculty of Engineering, University of Nottingham, Nottingham NG7 2RD, United Kingdom
| | - Benoit Couturaud
- Institut de Chimie et des Matériaux Paris-Est, Université de Paris-Est Créteil, CNRS UMR 7182, 2 rue Henri Dunant, 94320 Thiais, France
| | - Luciano Galantini
- Dept. of Chemistry, Sapienza University of Rome, Piazzale A. Moro 5, 00185 Rome, Italy
| | - Iolanda Francolini
- Dept. of Chemistry, Sapienza University of Rome, Piazzale A. Moro 5, 00185 Rome, Italy
| | - Steven M Howdle
- School of Chemistry, University Park, Nottingham NG7 2RD, United Kingdom
| | - Vincenzo Taresco
- School of Chemistry, University Park, Nottingham NG7 2RD, United Kingdom.
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8
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To Quoc T, Bíró K, Pető Á, Kósa D, Sinka D, Lekli I, Kiss-Szikszai A, Budai I, Béres M, Vecsernyés M, Fehér P, Bácskay I, Ujhelyi Z. Development and Evaluation of an FDM Printed Nasal Device for CPZ Solid Nanoparticles. Molecules 2023; 28:molecules28114406. [PMID: 37298882 DOI: 10.3390/molecules28114406] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2023] [Revised: 05/19/2023] [Accepted: 05/24/2023] [Indexed: 06/12/2023] Open
Abstract
Nasal drug delivery has been a focus of scientific interest for decades. A number of drug delivery systems and devices are available and have been highly successful in providing better and more comfortable therapy. The benefits of nasal drug delivery are not in question. The nasal surface provides an excellent context for the targeted delivery of active substances. In addition to the large nasal surface area and intensive absorption, the active substances delivered through the nose overcome the blood-brain barrier and can be delivered directly to the central nervous system. Formulations for nasal administration are typically solutions or liquid dispersed systems such as emulsions or suspensions. Formulation techniques for nanostructures have recently undergone intensive development. Solid-phase heterogeneous dispersed systems represent a new direction in pharmaceutical formulations. The wide range of possible examples and the variety of excipients allow for the delivery of a wide range of active ingredients. The aim of our experimental work was to develop a solid drug delivery system that possesses all of the above-mentioned advantageous properties. In developing solid nanosystems, we not only exploited the advantages of size but also the adhesive and penetration-enhancing properties of excipients. During formulation, several amphiphilic compounds with adhesion properties and penetration enhancing effects were incorporated. We used chlorpromazine (CPZ), which is mainly used in the treatment of psychotic disorders such as schizophrenia and bipolar disorder. Chlorpromazine has been previously investigated by our team in other projects. With the availability of previous methods, the analytical characterization of the drug was carried out effectively. Due to the frequent and severe side effects of the drug, the need for therapeutic dose reduction is indisputable. In this series of experiments, we succeeded in constructing drug delivery systems. Finely divided Na nanoparticles were formed using a Büchi B90 nanospray dryer. An important step in the development of the drug carrier was the selection of suitable inert carrier compounds. Particle size determination and particle size distribution analysis were performed to characterize the prepared nanostructures. As safety is the most important aspect of any drug formulation, all components and systems were tested with different biocompatibility assays. The tests performed demonstrated the safe applicability of our systems. The bioavailability of chlorpromazine was studied as a function of the ratio of the active ingredient administered nasally and intravenously. As described above, most nasal formulations are liquids, but our system is solid, so there is currently no tool available to accurately target this system. As a supplement of the project, a nasal dosing device was developed, corresponding to the anatomical structure; a prototype of the device was made using 3D FDM technology. Our results lay the foundation for the design and industrial scaling of a new approach to the design and production of a high-bioavailability nasal medicinal product.
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Affiliation(s)
- Thinh To Quoc
- Department of Pharmaceutical Technology, Faculty of Pharmacy, University of Debrecen, Nagyerdei körút 98, 4032 Debrecen, Hungary
- Doctoral School of Pharmaceutical Sciences, University of Debrecen, Nagyerdei körút 98, 4032 Debrecen, Hungary
- Institute of Healthcare Industry, University of Debrecen, Nagyerdei körút 98, 4032 Debrecen, Hungary
| | - Krisztina Bíró
- Doctoral School of Pharmaceutical Sciences, University of Debrecen, Nagyerdei körút 98, 4032 Debrecen, Hungary
- Hospital Pharmacy at the University of Debrecen, University of Debrecen, Nagyerdei körút 98, 4032 Debrecen, Hungary
| | - Ágota Pető
- Department of Pharmaceutical Technology, Faculty of Pharmacy, University of Debrecen, Nagyerdei körút 98, 4032 Debrecen, Hungary
- Institute of Healthcare Industry, University of Debrecen, Nagyerdei körút 98, 4032 Debrecen, Hungary
| | - Dóra Kósa
- Department of Pharmaceutical Technology, Faculty of Pharmacy, University of Debrecen, Nagyerdei körút 98, 4032 Debrecen, Hungary
- Institute of Healthcare Industry, University of Debrecen, Nagyerdei körút 98, 4032 Debrecen, Hungary
| | - Dávid Sinka
- Department of Pharmaceutical Technology, Faculty of Pharmacy, University of Debrecen, Nagyerdei körút 98, 4032 Debrecen, Hungary
| | - István Lekli
- Department of Pharmacology, Faculty of Pharmacy, University of Debrecen, Nagyerdei körút 98, 4032 Debrecen, Hungary
| | - Attila Kiss-Szikszai
- Department of Organic Chemistry, University of Debrecen, Egyetem tér 1, 4010 Debrecen, Hungary
| | - István Budai
- Department of Engineering Management and Enterprise, Institute of Industrial Process Management, Faculty of Engineering, University of Debrecen, Ótemető utca 2, 4028 Debrecen, Hungary
| | - Mónika Béres
- Department of Medical Imaging, Department of Radiology and Imaging Science, Faculty of General Medicine, University of Debrecen, Nagyerdei körút 98, 4032 Debrecen, Hungary
| | - Miklós Vecsernyés
- Department of Pharmaceutical Technology, Faculty of Pharmacy, University of Debrecen, Nagyerdei körút 98, 4032 Debrecen, Hungary
| | - Pálma Fehér
- Department of Pharmaceutical Technology, Faculty of Pharmacy, University of Debrecen, Nagyerdei körút 98, 4032 Debrecen, Hungary
| | - Ildikó Bácskay
- Department of Pharmaceutical Technology, Faculty of Pharmacy, University of Debrecen, Nagyerdei körút 98, 4032 Debrecen, Hungary
- Institute of Healthcare Industry, University of Debrecen, Nagyerdei körút 98, 4032 Debrecen, Hungary
| | - Zoltán Ujhelyi
- Department of Pharmaceutical Technology, Faculty of Pharmacy, University of Debrecen, Nagyerdei körút 98, 4032 Debrecen, Hungary
- Doctoral School of Pharmaceutical Sciences, University of Debrecen, Nagyerdei körút 98, 4032 Debrecen, Hungary
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9
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Taresco V, Tulini I, Francolini I, Piozzi A. Polyglycerol Adipate-Grafted Polycaprolactone Nanoparticles as Carriers for the Antimicrobial Compound Usnic Acid. Int J Mol Sci 2022; 23:ijms232214339. [PMID: 36430814 PMCID: PMC9693002 DOI: 10.3390/ijms232214339] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Revised: 11/14/2022] [Accepted: 11/16/2022] [Indexed: 11/22/2022] Open
Abstract
Nanoparticle (NP) drug delivery systems are known to potentially enhance the efficacy of therapeutic agents. As for antimicrobial drugs, therapeutic solutions against drug-resistant microbes are urgently needed due to the worldwide antimicrobial resistance issue. Usnic acid is a widely investigated antimicrobial agent suffering from poor water solubility. In this study, polymer nanoparticles based on polyglycerol adipate (PGA) grafted with polycaprolactone (PCL) were developed as carriers for usnic acid. We demonstrated the potential of the developed systems in ensuring prolonged bactericidal activity against a model bacterial species, Staphylococcus epidermidis. The macromolecular architecture changes produced by PCL grafted from PGA significantly influenced the drug release profile and mechanism. Specifically, by varying the length of PCL arms linked to the PGA backbone, it was possible to tune the drug release from a burst anomalous drug release (high PCL chain length) to a slow diffusion-controlled release (low PCL chain length). The developed nanosystems showed a prolonged antimicrobial activity (up to at least 7 days) which could be used in preventing/treating infections occurring at different body sites, including medical device-related infection and mucosal/skin surface, where Gram-positive bacteria are commonly involved.
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Affiliation(s)
- Vincenzo Taresco
- Department of Chemistry, The University of Nottingham, Nottingham NG7 2RD, UK
| | - Isotta Tulini
- Department of Chemistry, Sapienza University of Rome, 00185 Rome, Italy
| | - Iolanda Francolini
- Department of Chemistry, Sapienza University of Rome, 00185 Rome, Italy
- Correspondence: (I.F.); (A.P.)
| | - Antonella Piozzi
- Department of Chemistry, Sapienza University of Rome, 00185 Rome, Italy
- Correspondence: (I.F.); (A.P.)
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10
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Abo-zeid Y, Amer A, Bakkar MR, El-Houssieny B, Sakran W. Antimicrobial Activity of Azithromycin Encapsulated into PLGA NPs: A Potential Strategy to Overcome Efflux Resistance. Antibiotics (Basel) 2022; 11:antibiotics11111623. [PMID: 36421266 PMCID: PMC9686761 DOI: 10.3390/antibiotics11111623] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2022] [Revised: 11/10/2022] [Accepted: 11/11/2022] [Indexed: 11/16/2022] Open
Abstract
Antimicrobial resistance represents a public health problem with a major negative impact on health and socioeconomic development, and is one of the biggest threats in the modern era. This requires the discovery of new approaches to control microbial infections. Nanomedicine could be one of the promising strategies to improve the treatment of microbial infections. Polymer nanoparticles (PNPs) were reported to overcome the efflux-resistant mechanism toward chemotherapeutic agents. However, to the best of our knowledge, no studies were performed to explore their ability to overcome the efflux-resistant mechanism in bacteria. In the current study, azithromycin (AZI), a macrolide antibiotic, was encapsulated into a biocompatible polymer, poly (lactic-co-glycolic acid) (PLGA) using the nano-precipitation method. The effect of the drug to polymer ratio, surfactant, and pH of the aqueous medium on particle size and drug loading percentage (DL%) were investigated in order to maximize the DL% and control the size of NPs to be around 100 nm. The antibacterial activity of AZI-PLGA NPs was investigated against AZI-resistant bacteria; Methicillin-resistant Staphylococcus aureus (MRSA) and Enterococcus faecalis (E. faecalis), where the efflux mechanism was demonstrated to be one of the resistant mechanisms. AZI-PLGA NPs were safer than free AZI, as revealed from the cytotoxicity test, and were able to overcome the efflux-resistant mechanism, as revealed by decreasing the MIC of AZI-PLGA NPs by four times than free AZI. The MIC value reduced from 256 to 64 µg/mL and from >1000 to 256 µg/mL for MRSA and E. faecalis, respectively. Therefore, encapsulation of AZI into PNPs was shown to be a promising strategy to overcome the efflux-resistant mechanism towards AZI and improve its antibacterial effect. However, future investigations are necessary to explore the effect (if any) of particle size, surface charge, and material composition of PNPs on antibacterial activity. Moreover, it is essential to ascertain the safety profiles of these PNPs, the possibility of their large-scale manufacture, and if this concept could be extended to other antibiotics.
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Affiliation(s)
- Yasmin Abo-zeid
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Helwan University, Cairo 11795, Egypt
- Helwan Nanotechnology Center, Helwan University, Cairo 11792, Egypt
- Correspondence: ; Tel.: +20-1092792846
| | - Amr Amer
- National Organization for Drug Control and Research (NODCAR), Giza 12511, Egypt
| | - Marwa Reda Bakkar
- Botany and Microbiology Department, Faculty of Science, Helwan University, Cairo 11795, Egypt
| | | | - Wedad Sakran
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Helwan University, Cairo 11795, Egypt
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11
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Shukla K. A study on the synthesis of various polyesters from glycerol. JOURNAL OF POLYMER RESEARCH 2022. [DOI: 10.1007/s10965-022-03221-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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12
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Glycerol-based enzymatically synthesized renewable polyesters: Control of molecular weight, degree of branching and functional endgroups. Eur Polym J 2022. [DOI: 10.1016/j.eurpolymj.2022.111173] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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13
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Damrongrak K, Kloysawat K, Bunsupa S, Sakchasri K, Wongrakpanich A, Taresco V, Cuzzucoli Crucitti V, Garnett MC, Suksiriworapong J. Delivery of acetogenin-enriched Annona muricata Linn leaf extract by folic acid-conjugated and triphenylphosphonium-conjugated poly(glycerol adipate) nanoparticles to enhance toxicity against ovarian cancer cells. Int J Pharm 2022; 618:121636. [PMID: 35259439 DOI: 10.1016/j.ijpharm.2022.121636] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2021] [Revised: 02/08/2022] [Accepted: 03/01/2022] [Indexed: 12/31/2022]
Abstract
The study demonstrated the fabrication of new poly(glycerol adipate) (PGA) nanoparticles decorated with folic acid (FOL-PGA) and triphenylphosphonium (TPP-PGA) and the potential on the delivery of acetogenin-enriched Annona muricata Linn leaf extract to ovarian cancer cells. FOL-PGA and TPP-PGA were successfully synthesized and used to fabricate FOL-decorated nanoparticles (FOL-NPs) and FOL-/TPP- decorated nanoparticles (FOL/TPP-NPs) by blending two polymers at a mass ratio of 1:1. All nanoparticles had small size of around 100 nm, narrow size distribution and high negative surface charge about -30 mV. The stable FOL/TPP-NPs showed highest drug loading of 14.9 ± 1.9% at 1:5 ratio of extract to polymer and reached to 35.8 ± 2.1% at higher ratio. Both nanoparticles released the extract in a biphasic sustained release manner over 5 days. The toxicity of the extract to SKOV3 cells was potentiated by FOL-NPs and FOL/TPP-NPs by 2.0 - 2.6 fold through induction of cell apoptosis. FOL/TPP-NPs showed lower IC50 and higher cellular uptake as compared to FOL-NPs. FOL-NPs exhibited folate receptor-mediated endocytosis. FOL/TPP-NPs provided more advantages than FOL-NPs in terms of stability in physiological fluid, uptake efficiency and targeting ability to mitochondria and showed a promising potential PGA platform for targeted delivery of herbal cytotoxic extracts.
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Affiliation(s)
- Kanokporn Damrongrak
- Department of Pharmacy, Faculty of Pharmacy, Mahidol University, Bangkok 10400, Thailand
| | - Kiattiphant Kloysawat
- Department of Pharmacy, Faculty of Pharmacy, Mahidol University, Bangkok 10400, Thailand
| | - Somnuk Bunsupa
- Department of Pharmacognosy, Faculty of Pharmacy, Mahidol University, Bangkok 10400, Thailand
| | - Krisada Sakchasri
- Department of Pharmacology, Faculty of Pharmacy, Mahidol University, Bangkok 10400, Thailand
| | | | - Vincenzo Taresco
- School of Chemistry, University of Nottingham, Nottingham NG7 2RD, United Kingdom
| | - Valentina Cuzzucoli Crucitti
- Centre for Additive Manufacturing and Department of Chemical and Environmental Engineering, University of Nottingham, Nottingham NG7 2RD, United Kingdom
| | - Martin C Garnett
- School of Pharmacy, University of Nottingham, Nottingham NG7 2RD, United Kingdom
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14
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Recent advances and challenges on enzymatic synthesis of biobased polyesters via polycondensation. Eur Polym J 2022. [DOI: 10.1016/j.eurpolymj.2022.111132] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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15
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Shah P, Shende P. Biomacromolecule-Functionalized Nanoparticle-Based Conjugates for Potentiation of Anticancer Therapy. Curr Cancer Drug Targets 2021; 22:31-48. [PMID: 34872476 DOI: 10.2174/1568009621666211206102942] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2021] [Revised: 09/09/2021] [Accepted: 10/05/2021] [Indexed: 12/24/2022]
Abstract
Cancer is a rapidly growing life-threatening disease that affected 18.1 million people worldwide in 2018. Various conventional techniques like surgery, radiation, and chemotherapy are considered as a mainstream treatment for patients but show some limitations like cytotoxicity due to off-targeted action, poor intra-tumor localization, development of multi-drug resistance by tumor cells, physical and psychological stresses, etc. Such limitations have motivated the scientists to work towards more patient-centric and precision therapy using advanced drug delivery systems like liposomes, nanoparticles, nanoconjugates, etc. However, these carriers also face limitations like poor biocompatibility, lesser payload capacity, leakage of encapsulated drug, and short-term stability. So, this review article explores the profound insights for the development of biomacromolecule-functionalized nanoconjugates to potentiate the anticancer activity of therapeutic agents for various cancers like lung, colorectal, ovarian, breast and liver cancer. Researchers have shown interest in biofunctionalized nanoconjugates because of advantages like biocompatibility, site-specificity with better localization, higher entrapment with long-term stability and lesser off-target toxicity. The progressive trend of biomacromolecule nanoconjugates will encourage further research for the development of effective transport of drugs, nutraceuticals and phytoconstituents for on-site effect at cancer microenvironment and tumor cells with higher safety profile.
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Affiliation(s)
- Priyank Shah
- Shobhaben Pratapbhai Patel School of Pharmacy and Technology Management, SVKM'S NMIMS, V. L. Mehta Road, Vile Parle (W), Mumbai. India
| | - Pravin Shende
- Shobhaben Pratapbhai Patel School of Pharmacy and Technology Management, SVKM'S NMIMS, V. L. Mehta Road, Vile Parle (W), Mumbai. India
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16
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Pothukuchi RP, Prajapat VK, Radhakrishna M. Charge-Driven Self-Assembly of Polyelectrolyte-Grafted Nanoparticles in Solutions. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2021; 37:12007-12015. [PMID: 34617762 DOI: 10.1021/acs.langmuir.1c01571] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Nanoparticle self-assembly in solution has gained immense interest due to the enhanced optical, chemical, magnetic, and electrical properties which manifest at the macroscale. Material properties in bulk are a direct consequence of the morphology of these nanoparticles in solutions. Precise control on the orientation, spatial arrangement, shape, size, composition, and control over the interactions of individual nanoparticles play a key role in enhancing their properties. While previous studies have used asymmetry in the nanoparticle and/or the use of linker grafts, nanoparticles grafted with polyelectrolyte grafts provide us a wide parameter space to control and tune their self-assembly in solutions. In this study, we have performed coarse-grained molecular dynamics simulations to understand the charge-driven self-assembly of spherical nanoparticles grafted with polyelectrolyte chains. Nanoparticles grafted with either positively or negatively charged polyelectrolyte chains self-assemble to different structures driven by both excluded volume and electrostatic interactions. Our study shows that by tuning the graft density, the chain length, and the charge density of the grafts, we could build and control a variety of self-assembled structures ranging from rings, dimers, strings, coil-like aggregates, and disordered-to-ordered aggregates.
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Affiliation(s)
- Rajesh Pavan Pothukuchi
- Discipline of Chemical Engineering, Indian Institute of Technology (IIT) Gandhinagar, Palaj, Gandhinagar, Gujarat 382355, India
| | - Vinod Kumar Prajapat
- Discipline of Chemical Engineering, Indian Institute of Technology (IIT) Gandhinagar, Palaj, Gandhinagar, Gujarat 382355, India
| | - Mithun Radhakrishna
- Discipline of Chemical Engineering, Indian Institute of Technology (IIT) Gandhinagar, Palaj, Gandhinagar, Gujarat 382355, India
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17
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Lv J, Xie M, Zhao S, Qiu W, Wang S, Cao M. Synergetic fabrication of hybrid drug formulation using biodegradable tri-block copolymeric liquid nanoparticle delivery for gastric cancer chemotherapy. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.117066] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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18
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Enzymatic synthesis of glycerol, azido-glycerol and azido-triglycerol based amphiphilic copolymers and their relevance as nanocarriers: A review. Eur Polym J 2021. [DOI: 10.1016/j.eurpolymj.2021.110690] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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19
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Jacob PL, Ruiz Cantu LA, Pearce AK, He Y, Lentz JC, Moore JC, Machado F, Rivers G, Apebende E, Fernandez MR, Francolini I, Wildman R, Howdle SM, Taresco V. Poly (glycerol adipate) (PGA) backbone modifications with a library of functional diols: Chemical and physical effects. POLYMER 2021. [DOI: 10.1016/j.polymer.2021.123912] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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20
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Fatty acid-modified poly(glycerol adipate) microparticles for controlled drug delivery. J Drug Deliv Sci Technol 2021. [DOI: 10.1016/j.jddst.2020.102206] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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21
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Modeling of autocatalytic degradation of polymer microparticles with various morphologies based on analytical solutions of reaction-diffusion equations. KOREAN J CHEM ENG 2021. [DOI: 10.1007/s11814-020-0696-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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22
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Lang K, Sánchez-Leija RJ, Gross RA, Linhardt RJ. Review on the Impact of Polyols on the Properties of Bio-Based Polyesters. Polymers (Basel) 2020; 12:E2969. [PMID: 33322728 PMCID: PMC7764582 DOI: 10.3390/polym12122969] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2020] [Accepted: 12/09/2020] [Indexed: 11/17/2022] Open
Abstract
Bio-based polyol polyesters are biodegradable elastomers having potential utility in soft tissue engineering. This class of polymers can serve a wide range of biomedical applications. Materials based on these polymers are inherently susceptible to degradation during the period of implantation. Factors that influence the physicochemical properties of polyol polyesters might be useful in achieving a balance between durability and biodegradability. The characterization of these polyol polyesters, together with recent comparative studies involving creative synthesis, mechanical testing, and degradation, have revealed many of their molecular-level differences. The impact of the polyol component on the properties of these bio-based polyesters and the optimal reaction conditions for their synthesis are only now beginning to be resolved. This review describes our current understanding of polyol polyester structural properties as well as a discussion of the more commonly used polyol monomers.
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Affiliation(s)
- Kening Lang
- Department of Chemistry and Chemical Biology and Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY 12180, USA; (K.L.); (R.J.S.-L.)
| | - Regina J. Sánchez-Leija
- Department of Chemistry and Chemical Biology and Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY 12180, USA; (K.L.); (R.J.S.-L.)
- Pritzker School of Molecular Engineering, The University of Chicago, 5640 S Ellis Ave, Chicago, IL 60637, USA
| | - Richard A. Gross
- Department of Chemistry and Chemical Biology and Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY 12180, USA; (K.L.); (R.J.S.-L.)
- Department of Biomedical Engineering and Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY 12180, USA
| | - Robert J. Linhardt
- Department of Chemistry and Chemical Biology and Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY 12180, USA; (K.L.); (R.J.S.-L.)
- Department of Biomedical Engineering and Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY 12180, USA
- Department of Biology and Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY 12180, USA
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23
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Abo-Zeid Y, Williams GR, Touabi L, McLean GR. An investigation of rhinovirus infection on cellular uptake of poly (glycerol-adipate) nanoparticles. Int J Pharm 2020; 589:119826. [PMID: 32871219 PMCID: PMC7836899 DOI: 10.1016/j.ijpharm.2020.119826] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2020] [Revised: 07/24/2020] [Accepted: 08/24/2020] [Indexed: 12/26/2022]
Abstract
Viral infections represent 44% of newly emerging infections, and as is shown by the COVID-19 outbreak constitute a major risk to human health and wellbeing. Although there are many efficient antiviral agents, they still have drawbacks such as development of virus resistance and accumulation within off-target organs. Encapsulation of antiviral agents into nanoparticles (NPs) has been shown to improve bioavailability, control release, and reduce side effects. However, there is little quantitative understanding of how the uptake of NPs into virally infected cells compares to uninfected cells. In this work, the uptake of fluorescently labeled polymer NPs was investigated in several models of rhinovirus (RV) infected cells. Different multiplicities of RV infections (MOI) and timings of NPs uptake were also investigated. In some cases, RV infection resulted in a significant increase of NPs uptake, but this was not universally noted. For HeLa cells, RV-A16 and RV-A01 infection elevated NPs uptake upon increasing the incubation time, whereas at later timepoints (6 h) a reduced uptake was noted with RV-A01 infection (owing to decreased cell viability). Beas-2B cells exhibited more complex trends: decreases in NPs uptake (cf. uninfected cells) were observed at short incubation times following RV-A01 and RV-A16 infection. At later incubation times (4 h), we found a marked decrease of NPs uptake for RV-A01 infected cells but an increase in uptake with RV-A16 infected cells. Where increases in NPs uptake were found, they were very modest compared to results previously reported for a hepatitis C/ Huh7.5 cell line model. An increase in RV dose (MOI) was not associated with any notable change of NPs uptake. We argue that the diverse endocytic pathways among the different cell lines, together with changes in virus nature, size, and entry mechanism are responsible for these differences. These findings suggest that NPs entry into virally infected cells is a complex process, and further work is required to unravel the different factors which govern this. Undertaking this additional research will be crucial to develop potent nanomedicines for the delivery of antiviral agents.
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Affiliation(s)
- Yasmin Abo-Zeid
- Department of Pharmaceutics, Faculty of Pharmacy, Helwan University, Cairo, Egypt; UCL School of Pharmacy, University College London, 29 - 39 Brunswick Square, London WC1N 1AX, UK; Cellular and Molecular Immunology Research Centre, London Metropolitan University, 166-220 Holloway Road, London N7 8DB, UK.
| | - Gareth R Williams
- UCL School of Pharmacy, University College London, 29 - 39 Brunswick Square, London WC1N 1AX, UK.
| | - Lila Touabi
- Cellular and Molecular Immunology Research Centre, London Metropolitan University, 166-220 Holloway Road, London N7 8DB, UK.
| | - Gary R McLean
- Cellular and Molecular Immunology Research Centre, London Metropolitan University, 166-220 Holloway Road, London N7 8DB, UK; National Heart and Lung Institute, Imperial College London, Norfolk Place, London W2 1PG, UK.
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24
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Alaneed R, Golitsyn Y, Hauenschild T, Pietzsch M, Reichert D, Kressler J. Network formation by
aza‐Michael
addition of primary amines to vinyl end groups of enzymatically synthesized poly(glycerol adipate). POLYM INT 2020. [DOI: 10.1002/pi.6102] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Razan Alaneed
- Department of Chemistry Martin Luther University Halle‐Wittenberg Halle (Saale) Germany
- Department of Pharmaceutical Technology and Biopharmacy, Institute of Pharmacy Martin Luther University Halle‐Wittenberg Halle (Saale) Germany
| | - Yury Golitsyn
- Department of Physics Martin Luther University Halle‐Wittenberg Halle (Saale) Germany
| | - Till Hauenschild
- Department of Chemistry Martin Luther University Halle‐Wittenberg Halle (Saale) Germany
| | - Markus Pietzsch
- Department of Pharmaceutical Technology and Biopharmacy, Institute of Pharmacy Martin Luther University Halle‐Wittenberg Halle (Saale) Germany
| | - Detlef Reichert
- Department of Physics Martin Luther University Halle‐Wittenberg Halle (Saale) Germany
| | - Jörg Kressler
- Department of Chemistry Martin Luther University Halle‐Wittenberg Halle (Saale) Germany
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25
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Perin GB, Felisberti MI. Enzymatic Synthesis of Poly(glycerol sebacate): Kinetics, Chain Growth, and Branching Behavior. Macromolecules 2020; 53:7925-7935. [PMID: 32981969 PMCID: PMC7513468 DOI: 10.1021/acs.macromol.0c01709] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Revised: 08/20/2020] [Indexed: 01/23/2023]
Affiliation(s)
- Giovanni B. Perin
- Institute of Chemistry, University of Campinas, 13083-970 Campinas, SP, Brazil
| | - Maria I. Felisberti
- Institute of Chemistry, University of Campinas, 13083-970 Campinas, SP, Brazil
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26
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Abo-zeid Y, Garnett MC. Polymer nanoparticle as a delivery system for ribavirin: Do nanoparticle avoid uptake by Red Blood Cells? J Drug Deliv Sci Technol 2020. [DOI: 10.1016/j.jddst.2020.101552] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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27
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Abushrida A, Elhuni I, Taresco V, Marciani L, Stolnik S, Garnett MC. A simple and efficient method for polymer coating of iron oxide nanoparticles. J Drug Deliv Sci Technol 2020. [DOI: 10.1016/j.jddst.2019.101460] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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28
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Zamboulis A, Nakiou EA, Christodoulou E, Bikiaris DN, Kontonasaki E, Liverani L, Boccaccini AR. Polyglycerol Hyperbranched Polyesters: Synthesis, Properties and Pharmaceutical and Biomedical Applications. Int J Mol Sci 2019; 20:E6210. [PMID: 31835372 PMCID: PMC6940955 DOI: 10.3390/ijms20246210] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2019] [Revised: 12/02/2019] [Accepted: 12/04/2019] [Indexed: 12/13/2022] Open
Abstract
In a century when environmental pollution is a major issue, polymers issued from bio-based monomers have gained important interest, as they are expected to be environment-friendly, and biocompatible, with non-toxic degradation products. In parallel, hyperbranched polymers have emerged as an easily accessible alternative to dendrimers with numerous potential applications. Glycerol (Gly) is a natural, low-cost, trifunctional monomer, with a production expected to grow significantly, and thus an excellent candidate for the synthesis of hyperbranched polyesters for pharmaceutical and biomedical applications. In the present article, we review the synthesis, properties, and applications of glycerol polyesters of aliphatic dicarboxylic acids (from succinic to sebacic acids) as well as the copolymers of glycerol or hyperbranched polyglycerol with poly(lactic acid) and poly(ε-caprolactone). Emphasis was given to summarize the synthetic procedures (monomer molar ratio, used catalysts, temperatures, etc.,) and their effect on the molecular weight, solubility, and thermal and mechanical properties of the prepared hyperbranched polymers. Their applications in pharmaceutical technology as drug carries and in biomedical applications focusing on regenerative medicine are highlighted.
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Affiliation(s)
- Alexandra Zamboulis
- Laboratory of Polymer Chemistry & Technology, Department of Chemistry, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (A.Z.); (E.A.N.); (E.C.)
| | - Eirini A. Nakiou
- Laboratory of Polymer Chemistry & Technology, Department of Chemistry, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (A.Z.); (E.A.N.); (E.C.)
| | - Evi Christodoulou
- Laboratory of Polymer Chemistry & Technology, Department of Chemistry, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (A.Z.); (E.A.N.); (E.C.)
| | - Dimitrios N. Bikiaris
- Laboratory of Polymer Chemistry & Technology, Department of Chemistry, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (A.Z.); (E.A.N.); (E.C.)
| | - Eleana Kontonasaki
- Department of Dentistry, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece;
| | - Liliana Liverani
- Institute of Biomaterials, Department of Material Science and Engineering, University of Erlangen-Nuremberg, Cauerstr. 6, 91058 Erlangen, Germany;
| | - Aldo R. Boccaccini
- Institute of Biomaterials, Department of Material Science and Engineering, University of Erlangen-Nuremberg, Cauerstr. 6, 91058 Erlangen, Germany;
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29
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Song Y, Shi Y, Zhang L, Hu H, Zhang C, Yin M, Zhang X, Sun K. Oral delivery system for low molecular weight protamine-dextran-poly(lactic-co-glycolic acid) carrying exenatide to overcome the mucus barrier and improve intestinal targeting efficiency. Nanomedicine (Lond) 2019; 14:989-1009. [PMID: 31088322 DOI: 10.2217/nnm-2018-0322] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Aim: This study aimed to explore the effect of nanoparticles loaded with exenatide in overcoming the mucus barrier and improving intestinal targeting efficiency, to improve the oral bioavailability. Materials & methods: Low molecular weight protamine (LMWP)-dextran-poly(lactic-co-glycolic acid) was used to create LMWP-dextran-poly(lactic-co-glycolic acid)-nanoparticles (LDPs) encapsulating exenatide-Zn2+ complex.Results & conclusion: LDPs showed improved penetration of the mucus barrier, and LMWP was helpful for mediating cell translocation through protein transduction domains. The absorption sites and distribution rates of LDPs were verified by intestinal localization experiments and in vivo distribution experiments. Cell uptake and transmembrane experiments confirmed the absorption efficiency in the intestinal epithelium. Furthermore, the relative bioavailability after oral administration of exenatide-Zn2+-LDPs was 8.4%, with a significant hypoglycemic effect on Type 2 diabetic mice.
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Affiliation(s)
- Yina Song
- School of Pharmacy, Key Laboratory of Molecular Pharmacology & Drug Evaluation (Yantai University), Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System & Biotech Drugs in Universities of Shandong, Yantai University, Yantai, 264005, PR China
| | - Yanan Shi
- School of Pharmacy, Binzhou Medical University, Yantai, 264005, PR China
| | - Liping Zhang
- School of Pharmacy, Key Laboratory of Molecular Pharmacology & Drug Evaluation (Yantai University), Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System & Biotech Drugs in Universities of Shandong, Yantai University, Yantai, 264005, PR China
| | - Haiyan Hu
- School of Pharmacy, Key Laboratory of Molecular Pharmacology & Drug Evaluation (Yantai University), Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System & Biotech Drugs in Universities of Shandong, Yantai University, Yantai, 264005, PR China
| | - Chunyan Zhang
- School of Pharmacy, Key Laboratory of Molecular Pharmacology & Drug Evaluation (Yantai University), Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System & Biotech Drugs in Universities of Shandong, Yantai University, Yantai, 264005, PR China
| | - Miaomiao Yin
- School of Pharmacy, Key Laboratory of Molecular Pharmacology & Drug Evaluation (Yantai University), Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System & Biotech Drugs in Universities of Shandong, Yantai University, Yantai, 264005, PR China
| | - Xuemei Zhang
- State Key Laboratory of Long-Acting & Targeting Drug Delivery System, Luye Pharmaceutical Co. Ltd, Yantai, 264005, PR China
| | - Kaoxiang Sun
- School of Pharmacy, Key Laboratory of Molecular Pharmacology & Drug Evaluation (Yantai University), Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System & Biotech Drugs in Universities of Shandong, Yantai University, Yantai, 264005, PR China.,State Key Laboratory of Long-Acting & Targeting Drug Delivery System, Luye Pharmaceutical Co. Ltd, Yantai, 264005, PR China
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Ragno D, Di Carmine G, Brandolese A, Bortolini O, Giovannini PP, Fantin G, Bertoldo M, Massi A. Oxidative NHC-Catalysis as Organocatalytic Platform for the Synthesis of Polyester Oligomers by Step-Growth Polymerization. Chemistry 2019; 25:14701-14710. [PMID: 31486558 DOI: 10.1002/chem.201903557] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Revised: 09/04/2019] [Indexed: 12/20/2022]
Abstract
The application of N-heterocyclic carbene (NHC) catalysis to the polycondensation of diols and dialdehydes under oxidative conditions is herein presented for the synthesis of polyesters using fossil-based (ethylene glycol, phthalaldehydes) and bio-based (furan derivatives, glycerol, isosorbide) monomers. The catalytic dimethyl triazolium/1,8-diazabicyclo[5.4.0]undec-7-ene couple and stoichiometric quinone oxidant afforded polyester oligomers with a number-average molecular weight (Mn ) in the range of 1.5-7.8 kg mol-1 as determined by NMR analysis. The synthesis of a higher molecular weight polyester (polyethylene terephthalate, PET) by an NHC-promoted two-step procedure via oligoester intermediates is also illustrated together with the catalyst-controlled preparation of cross-linked or linear polyesters derived from the trifunctional glycerol. The thermal properties (TGA and DSC analyses) of the synthesized oligoesters are also reported.
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Affiliation(s)
- Daniele Ragno
- Department of Chemical and Pharmaceutica Sciences, University of Ferrara, Via L. Borsari, 46, 44121, Ferrara, Italy
| | - Graziano Di Carmine
- Department of Chemical and Pharmaceutica Sciences, University of Ferrara, Via L. Borsari, 46, 44121, Ferrara, Italy
| | - Arianna Brandolese
- Department of Chemical and Pharmaceutica Sciences, University of Ferrara, Via L. Borsari, 46, 44121, Ferrara, Italy
| | - Olga Bortolini
- Department of Chemical and Pharmaceutica Sciences, University of Ferrara, Via L. Borsari, 46, 44121, Ferrara, Italy
| | - Pier Paolo Giovannini
- Department of Chemical and Pharmaceutica Sciences, University of Ferrara, Via L. Borsari, 46, 44121, Ferrara, Italy
| | - Giancarlo Fantin
- Department of Chemical and Pharmaceutica Sciences, University of Ferrara, Via L. Borsari, 46, 44121, Ferrara, Italy
| | - Monica Bertoldo
- Istituto per la Sintesi Organica e la Fotoreattività, Consiglio Nazionale delle Ricerche, Via P. Gobetti, 101-40129, Bologna, Italy
| | - Alessandro Massi
- Department of Chemical and Pharmaceutica Sciences, University of Ferrara, Via L. Borsari, 46, 44121, Ferrara, Italy
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Swainson SME, Styliari ID, Taresco V, Garnett MC. Poly (glycerol adipate) (PGA), an Enzymatically Synthesized Functionalizable Polyester and Versatile Drug Delivery Carrier: A Literature Update. Polymers (Basel) 2019; 11:polym11101561. [PMID: 31557875 PMCID: PMC6835762 DOI: 10.3390/polym11101561] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2019] [Revised: 09/09/2019] [Accepted: 09/20/2019] [Indexed: 01/09/2023] Open
Abstract
The enzymatically synthesized poly (glycerol adipate) (PGA) has demonstrated all the desirable key properties required from a performing biomaterial to be considered a versatile “polymeric-tool” in the broad field of drug delivery. The step-growth polymerization pathway catalyzed by lipase generates a highly functionalizable platform while avoiding tedious steps of protection and deprotection. Synthesis requires only minor purification steps and uses cheap and readily available reagents. The final polymeric material is biodegradable, biocompatible and intrinsically amphiphilic, with a good propensity to self-assemble into nanoparticles (NPs). The free hydroxyl group lends itself to a variety of chemical derivatizations via simple reaction pathways which alter its physico-chemical properties with a possibility to generate an endless number of possible active macromolecules. The present work aims to summarize the available literature about PGA synthesis, architecture alterations, chemical modifications and its application in drug and gene delivery as a versatile carrier. Following on from this, the evolution of the concept of enzymatically-degradable PGA-drug conjugation has been explored, reporting recent examples in the literature.
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Affiliation(s)
- Sadie M E Swainson
- School of Pharmacy, University of Nottingham, University Park, Nottingham NG7 2RD, UK.
| | - Ioanna D Styliari
- School of Life and Medical Sciences, University of Hertfordshire, College Lane, Hatfield AL10 9AB, UK.
| | - Vincenzo Taresco
- School of Pharmacy, University of Nottingham, University Park, Nottingham NG7 2RD, UK.
- School of Chemistry, University of Nottingham, University Park, Nottingham NG7 2RD, UK.
| | - Martin C Garnett
- School of Pharmacy, University of Nottingham, University Park, Nottingham NG7 2RD, UK.
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Starch/Poly (Glycerol-Adipate) Nanocomposite Film as Novel Biocompatible Materials. COATINGS 2019. [DOI: 10.3390/coatings9080482] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Starch is one of the most abundant polysaccharides on the earth and it is the most important source of energy intake for humans. Thermoplastic starch (TPS) is also widely used for new bio-based materials. The blending of starch with other molecules may lead to new interesting biodegradable scaffolds to be exploited in food, medical, and pharmaceutical fields. In this work, we used native starch films as biopolymeric matrix carriers of chemo enzymatically-synthesized poly (glycerol-adipate) (PGA) nanoparticles (NPs) to produce a novel and biocompatible material. The prototype films had a crystallinity ranging from 4% to 7%. The intrinsic and thermo-mechanical properties of the composite showed that the incorporation of NPs in the starch films decreases the glass transition temperature. The utilization of these film prototypes as the basis for new biocompatible material showed promise, particularly because they have a very low or even zero cytotoxicity. Coumarin was used to monitor the distribution of the PGA NPs in the films and demonstrated a possible interaction between the two polymers. These novel hybrid nanocomposite films show great promise and could be used in the future as biodegradable and biocompatible platforms for the controlled release of amphiphilic and hydrophobic active ingredients.
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Swainson SME, Taresco V, Pearce AK, Clapp LH, Ager B, McAllister M, Bosquillon C, Garnett MC. Exploring the enzymatic degradation of poly(glycerol adipate). Eur J Pharm Biopharm 2019; 142:377-386. [PMID: 31319123 DOI: 10.1016/j.ejpb.2019.07.015] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2019] [Revised: 06/24/2019] [Accepted: 07/14/2019] [Indexed: 02/08/2023]
Abstract
Poly(glycerol adipate) (PGA) is a biodegradable, biocompatible, polymer with a great deal of potential in the field of drug delivery. Active drug molecules can be conjugated to the polymer backbone or encapsulated in self-assembled nanoparticles for targeted and systemic delivery. Here, a range of techniques have been used to characterise the enzymatic degradation of PGA extensively for the first time and to provide an indication of the way the polymer will behave and release drug payloads in vivo. Dynamic Light Scattering was used to monitor change in nanoparticle size, indicative of degradation. The release of a fluorescent dye, coupled to PGA, upon incubation with enzymes was measured over a 96 h period as a model of drug release from polymer drug conjugates. The changes to the chemical structure and molecular weight of PGA following enzyme exposure were characterised using FTIR, NMR and GPC. These techniques provided evidence of the biodegradability of PGA, its susceptibility to degradation by a range of enzymes commonly found in the human body and the polymer's potential as a drug delivery platform.
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Affiliation(s)
- Sadie M E Swainson
- School of Pharmacy, University of Nottingham, Nottingham NG7 2RD, United Kingdom
| | - Vincenzo Taresco
- School of Pharmacy, University of Nottingham, Nottingham NG7 2RD, United Kingdom
| | - Amanda K Pearce
- School of Pharmacy, University of Nottingham, Nottingham NG7 2RD, United Kingdom
| | - Lucie H Clapp
- Department of Medicine, University College London, London WC1E 6JF, United Kingdom
| | - Barry Ager
- Drug Product Design, Pfizer Ltd, Sandwich CT13 9ND, United Kingdom
| | - Mark McAllister
- Drug Product Design, Pfizer Ltd, Sandwich CT13 9ND, United Kingdom
| | - Cynthia Bosquillon
- School of Pharmacy, University of Nottingham, Nottingham NG7 2RD, United Kingdom
| | - Martin C Garnett
- School of Pharmacy, University of Nottingham, Nottingham NG7 2RD, United Kingdom.
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Shah TV, Vasava DV. A glimpse of biodegradable polymers and their biomedical applications. E-POLYMERS 2019. [DOI: 10.1515/epoly-2019-0041] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
AbstractOver the past two decades, biodegradable polymers (BPs) have been widely used in biomedical applications such as drug carrier, gene delivery, tissue engineering, diagnosis, medical devices, and antibacterial/antifouling biomaterials. This can be attributed to numerous factors such as chemical, mechanical and physiochemical properties of BPs, their improved processibility, functionality and sensitivity towards stimuli. The present review intended to highlight main results of research on advances and improvements in terms of synthesis, physical properties, stimuli response, and/or applicability of biodegradable plastics (BPs) during last two decades, and its biomedical applications. Recent literature relevant to this study has been cited and their developing trends and challenges of BPs have also been discussed.
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Affiliation(s)
- Tejas V. Shah
- Department of Chemistry, School of Sciences, Gujarat University, Ahmedabad, Gujarat- 380009, India
| | - Dilip V. Vasava
- Department of Chemistry, School of Sciences, Gujarat University, Ahmedabad, Gujarat- 380009, India
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Abstract
Enzymatic polymerization is an environmentally benign process for the synthesis of biodegradable and biocompatible polymers. The regioselectivity of lipase B from Candida Antarctica (CAL-B) produces linear functional polyesters without protection-deprotection steps. In this work, two different methods for the enzymatic synthesis of functional polyesters based on renewable resources, as, e.g., glycerol, using CAL-B are outlined. Poly(glycerol adipate) was synthesized by enzymatic transesterification between glycerol and divinyl adipate or dimethyl adipate. Methods are also reported to graft poly(glycerol adipate) with different amounts of hydrophobic side chains (lauric, stearic, behenic, and oleic acids) and hydrophilic poly(ethylene glycol) side chains, respectively. The hydrophilicity or lipophilicity of grafted polyesters is well controlled by changing the degree of grafting of hydrophilic and hydrophobic side chains. The multiple grafted polyesters are characterized by NMR spectroscopy, differential scanning calorimetry, gel permeation chromatography, and X-ray diffraction. Furthermore, the self-assembly of the graft copolymers in water and their use as steric stabilizers for cubosomes are discussed. For this purpose mainly dynamic light scattering and small angle X-ray scattering have been employed.
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Tchoryk A, Taresco V, Argent RH, Ashford M, Gellert PR, Stolnik S, Grabowska A, Garnett MC. Penetration and Uptake of Nanoparticles in 3D Tumor Spheroids. Bioconjug Chem 2019; 30:1371-1384. [DOI: 10.1021/acs.bioconjchem.9b00136] [Citation(s) in RCA: 103] [Impact Index Per Article: 20.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
| | | | | | - Marianne Ashford
- Advanced Drug Delivery, Pharmaceutical Sciences, IMED Biotech Unit, AstraZeneca, Macclesfield SK10 2NA, United Kingdom
| | - Paul R. Gellert
- Innovation Strategies and External Liaison, Pharmaceutical Technology and Development, AstraZeneca, Macclesfield, SK10 2NA, United Kingdom
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Kalhor HR, Yahyazadeh A. Investigating the effects of amino acid-based surface modification of carbon nanoparticles on the kinetics of insulin amyloid formation. Colloids Surf B Biointerfaces 2019; 176:471-479. [DOI: 10.1016/j.colsurfb.2019.01.033] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2018] [Revised: 01/04/2019] [Accepted: 01/16/2019] [Indexed: 12/13/2022]
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Bansal KK, Upadhyay PK, Kakde D, Rosenholm JM, Rosling A. Synthesis of polyester from renewable feedstock: a comparison between microwave and conventional heating. MENDELEEV COMMUNICATIONS 2019. [DOI: 10.1016/j.mencom.2019.03.021] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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He L, Sun M, Cheng X, Xu Y, Lv X, Wang X, Tang R. pH/redox dual-sensitive platinum (IV)-based micelles with greatly enhanced antitumor effect for combination chemotherapy. J Colloid Interface Sci 2019; 541:30-41. [PMID: 30682591 DOI: 10.1016/j.jcis.2019.01.076] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2018] [Revised: 01/15/2019] [Accepted: 01/16/2019] [Indexed: 11/29/2022]
Abstract
To achieve precise control of nano-carrier structure and drug release behavior, we designed a pH/redox dual-responsive polymeric prodrug by condensation polymerization using octahedrally coordinated cisplatin (Pt IV) and ortho ester monomer. The prodrug was then self-assembled with doxorubicin (DOX) in aqueous solution to give a synergetic drug delivery system. The polymer backbone can completely degrade and release cisplatin (Pt II) and DOX under the acidic and reductive environment of tumor cells, owing to the breakage of ortho ester bonds and the reduction of Pt (IV). The size and micromorphology of micelles were observed by dynamic light scattering (DLS) and transmission electron microscopy (TEM). In vitro study of drug release, cellular uptake and cytotoxicity revealed that the micelles could be triggered intracellularly to release two drugs. In vivo drug distribution and antitumor activity also provide the evidence for the excellent antitumor effect of micelles.
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Affiliation(s)
- Le He
- Engineering Research Center for Biomedical Materials, School of Life Science, Anhui Key Laboratory of Modern Biomanufacturing, Anhui University, 111 Jiu long Road, Hefei, Anhui Province 230601, PR China
| | - Min Sun
- Engineering Research Center for Biomedical Materials, School of Life Science, Anhui Key Laboratory of Modern Biomanufacturing, Anhui University, 111 Jiu long Road, Hefei, Anhui Province 230601, PR China
| | - Xu Cheng
- Engineering Research Center for Biomedical Materials, School of Life Science, Anhui Key Laboratory of Modern Biomanufacturing, Anhui University, 111 Jiu long Road, Hefei, Anhui Province 230601, PR China
| | - Yong Xu
- Engineering Research Center for Biomedical Materials, School of Life Science, Anhui Key Laboratory of Modern Biomanufacturing, Anhui University, 111 Jiu long Road, Hefei, Anhui Province 230601, PR China
| | - Xiaodong Lv
- Engineering Research Center for Biomedical Materials, School of Life Science, Anhui Key Laboratory of Modern Biomanufacturing, Anhui University, 111 Jiu long Road, Hefei, Anhui Province 230601, PR China
| | - Xin Wang
- Engineering Research Center for Biomedical Materials, School of Life Science, Anhui Key Laboratory of Modern Biomanufacturing, Anhui University, 111 Jiu long Road, Hefei, Anhui Province 230601, PR China.
| | - Rupei Tang
- Engineering Research Center for Biomedical Materials, School of Life Science, Anhui Key Laboratory of Modern Biomanufacturing, Anhui University, 111 Jiu long Road, Hefei, Anhui Province 230601, PR China.
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Song Y, Shi Y, Zhang L, Hu H, Zhang C, Yin M, Chu L, Yan X, Zhao M, Zhang X, Mu H, Sun K. Synthesis of CSK-DEX-PLGA Nanoparticles for the Oral Delivery of Exenatide to Improve Its Mucus Penetration and Intestinal Absorption. Mol Pharm 2019; 16:518-532. [PMID: 30601014 DOI: 10.1021/acs.molpharmaceut.8b00809] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The oral absorption of exenatide, a drug for type 2 diabetes treatment, can be improved by using nanoparticles (NPs) for its delivery. To improve the mucus penetration and intestinal absorption of exenatide, we designed a block copolymer, CSKSSDYQC-dextran-poly(lactic-co-glycolic acid) (CSK-DEX-PLGA), and used it for the preparation of exenatide-loaded NPs. The functionalized exenatide-loaded NPs composed of CSK-DEX-PLGA were able to target intestinal epithelial cells and reduce the mucus-blocking effect of the intestine. Moreover, the CSK modification of DEX-PLGA was found to significantly promote the absorption efficiency of NPs in the small intestine based on in vitro ligation of the intestinal rings and an examination of different intestinal absorption sites. Compared to DEX-PLGA-NPs (DPs), the absorption of CSK-DEX-PLGA-NPs (CDPs) was increased in the villi, allowing the drug to act on gobletlike Caco-2 cells through clathrin-, caveolin-, and gap-mediated endocytosis. Furthermore, the enhanced transport ability of CDPs was observed in a study on Caco-2/HT-29-MTX cocultured cells. CDPs exhibited a prolonged hypoglycemic response with a relative bioavailability of 9.2% in diabetic rats after oral administration. In conclusion, CDPs can target small intestinal goblet cells and have a beneficial effect on the oral administration of macromolecular peptides as a nanometer-sized carrier.
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Affiliation(s)
- Yina Song
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong , Yantai University , Yantai 264005 , China
| | - Yanan Shi
- School of Pharmacy , Binzhou Medical University , Yantai 264005 , China
| | - Liping Zhang
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong , Yantai University , Yantai 264005 , China
| | - Haiyan Hu
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong , Yantai University , Yantai 264005 , China
| | - Chunyan Zhang
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong , Yantai University , Yantai 264005 , China
| | - Miaomiao Yin
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong , Yantai University , Yantai 264005 , China
| | - Liuxiang Chu
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong , Yantai University , Yantai 264005 , China
| | - Xiuju Yan
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong , Yantai University , Yantai 264005 , China
| | - Mingyu Zhao
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong , Yantai University , Yantai 264005 , China
| | - Xuemei Zhang
- State Key Laboratory of Long-Acting and Targeting Drug Delivery System , Luye Pharmaceutical Co. Ltd. , Yantai 264005 , China
| | - Hongjie Mu
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong , Yantai University , Yantai 264005 , China
| | - Kaoxiang Sun
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong , Yantai University , Yantai 264005 , China.,State Key Laboratory of Long-Acting and Targeting Drug Delivery System , Luye Pharmaceutical Co. Ltd. , Yantai 264005 , China
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Li J, Yang XL, Liu YH, Wu WX, Liu BY, Wang N, Yu XQ. Chemoenzymatic synthesis of dual-responsive graft copolymers for drug delivery: long-term stability, high loading and cell selectivity. J Mater Chem B 2018; 6:6993-7003. [PMID: 32254582 DOI: 10.1039/c8tb01973h] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A series of amphiphilic graft copolymers, poly(N-propargyldiethanolamine 4,4'-dithiodibutyionate)-graft-monomethoxy poly(ethylene glycol) (PPD-g-mPEG), were designed via a chemoenzymatic method for pH and reduced glutathione (GSH) dual-responsive drug delivery. The effects of percent grafting and molecular weights of mPEG on critical micelle concentration (CMC) values, size of micelles, drug loading and dual-response were tested. The graft copolymers could easily form homogeneous spherical micelles with appropriate sizes and zeta-potentials. The micelles of PPD-g-mPEG copolymers loaded doxorubicin (DOX) in high efficiency, and showed excellent stability under physiological conditions and synergetic dual-response to weakly acidic pH and GSH. In vitro experiments confirmed that the DOX-loaded micelles could be internalized into cancer cells efficiently and release DOX over time. Furthermore, cell cytotoxicity assays indicated that the graft copolymers were non-cytotoxic to both cancerous and normal cells while the DOX-loaded micelles greatly improved the selectivity ratios between HeLa cells and HL-7702 cells. DOX-loaded micelles also avoided hemolysis of red blood cells (RBCs) effectively compared with commercialized doxorubicin hydrochloride. All these demonstrated the potential of PPD-g-mPEG as a model to create more functional dual-responsive nanocarriers for controlled drug delivery.
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Affiliation(s)
- Jun Li
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, P. R. China.
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Liang T, Yao Z, Ding J, Min Q, Jiang L, Zhu JJ. Cascaded Aptamers-Governed Multistage Drug-Delivery System Based on Biodegradable Envelope-Type Nanovehicle for Targeted Therapy of HER2-Overexpressing Breast Cancer. ACS APPLIED MATERIALS & INTERFACES 2018; 10:34050-34059. [PMID: 30207689 DOI: 10.1021/acsami.8b14009] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Tumor-specific therapeutic platforms with improved targeting efficacy and minimized side effect are crucial in cancer therapy. Capitalizing on the recognition capability and biocompatibility of aptamers, we herein designed a multistage targeted drug-delivery system using multiple biodegradable molecules-enveloped nanovehicle that can be employed to efficiently treat human epithelial growth factor receptor (HER2)-overexpressing breast cancer. In this nanovehicle, two aptamers respectively specific to HER2 and ATP were organized in a hierarchical manner. The outmost HER2 aptamer (HB5) governs the recognition to HER2 protein overexpressed in SK-BR-3 cell lines, while the ATP aptamer incorporated with anticancer drug (-)-epigallocatechin gallate (EGCG) and protamine sulfate in the inner core functions as a switch of drug release in response to abundant intracellular ATP. The targeting and drug locker aptamers were cascaded for active targeting effect and stimuli responsiveness, guaranteeing the site-specific drug transportation and endogenous species-triggered drug release inside the tumor cells. Moreover, nanostructured lipid carriers (NLCs) were constructed to wrap and stabilize the loosely bounded ternary complex, minimizing premature drug leakage potentially encountered by the biomolecule assembled nanocarriers. This multiple biomolecules-enveloped nanovehicle demonstrated improved inhibitory actions on tumor growth and minimum side effect to normal organs and tissues both in vitro and in vivo. The presented nanovehicle built from recognition and therapeutic components in a nontoxic framework offered a promising drug-delivery platform with transport precision and biological safety.
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Affiliation(s)
- Tingxizi Liang
- State Key Laboratory of Analytical Chemistry and Collaborative Innovation Center of Chemistry for Life Sciences, School of Chemistry & Chemical Engineering , Nanjing University , Nanjing 210023 , China
| | - Zhigang Yao
- State Key Laboratory of Analytical Chemistry and Collaborative Innovation Center of Chemistry for Life Sciences, School of Chemistry & Chemical Engineering , Nanjing University , Nanjing 210023 , China
| | - Jie Ding
- State Key Laboratory of Analytical Chemistry and Collaborative Innovation Center of Chemistry for Life Sciences, School of Chemistry & Chemical Engineering , Nanjing University , Nanjing 210023 , China
- Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, China-America Cancer Research Institute , Guangdong Medical University , Dongguan 523808 , China
| | - Qianhao Min
- State Key Laboratory of Analytical Chemistry and Collaborative Innovation Center of Chemistry for Life Sciences, School of Chemistry & Chemical Engineering , Nanjing University , Nanjing 210023 , China
| | - Liping Jiang
- State Key Laboratory of Analytical Chemistry and Collaborative Innovation Center of Chemistry for Life Sciences, School of Chemistry & Chemical Engineering , Nanjing University , Nanjing 210023 , China
| | - Jun-Jie Zhu
- State Key Laboratory of Analytical Chemistry and Collaborative Innovation Center of Chemistry for Life Sciences, School of Chemistry & Chemical Engineering , Nanjing University , Nanjing 210023 , China
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Synthesis of nucleoside-boronic esters hydrophobic pro-drugs: A possible route to improve hydrophilic nucleoside drug loading into polymer nanoparticles. J Drug Deliv Sci Technol 2018. [DOI: 10.1016/j.jddst.2018.05.027] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Wersig T, Krombholz R, Janich C, Meister A, Kressler J, Mäder K. Indomethacin functionalised poly(glycerol adipate) nanospheres as promising candidates for modified drug release. Eur J Pharm Sci 2018; 123:350-361. [PMID: 30063978 DOI: 10.1016/j.ejps.2018.07.053] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2018] [Revised: 07/03/2018] [Accepted: 07/26/2018] [Indexed: 12/25/2022]
Abstract
The linear polyester poly(glycerol adipate) (PGA) with its free pendant hydroxyl groups was covalently grafted with indomethacin which yields polymeric prodrugs. It was possible to produce nanospheres with narrow particle size distribution of these polymer-drug conjugates with an optimized interfacial deposition method. Nanospheres were characterized by zeta potential measurements, dynamic light scattering, electron microscopy and nanoparticle tracking analysis. Moreover, cell viability studies and cytotoxicity tests in three different cell lines were carried out showing low toxicity for three different degrees of grafting. In addition, the nanospheres had (in contrast to the free drug) low hemolytic activity in vitro. Release studies of nanodispersions are challenging. The use of a specially developed setup with highly porous aluminum oxide membranes enabled us to overcome problems associated with other setups (e.g. dialysis membranes). A slow and controlled release profile without any burst was observed over 15 days. The results indicate that indomethacin-PGA conjugates can be formulated successfully as nanospheres with the desired characteristics of small size with narrow distribution, controlled drug release and low toxicity. The newly developed particles have the potential to improve the therapy of inflammation and associated diseases.
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Affiliation(s)
- T Wersig
- Institute of Pharmacy, Martin Luther University Halle-Wittenberg, D-06099 Halle (Saale), Germany
| | - R Krombholz
- Institute of Pharmacy, Martin Luther University Halle-Wittenberg, D-06099 Halle (Saale), Germany
| | - C Janich
- Institute of Pharmacy, Martin Luther University Halle-Wittenberg, D-06099 Halle (Saale), Germany
| | - A Meister
- Institute of Chemistry, Martin Luther University Halle-Wittenberg, D-06099 Halle (Saale), Germany
| | - J Kressler
- Institute of Chemistry, Martin Luther University Halle-Wittenberg, D-06099 Halle (Saale), Germany
| | - K Mäder
- Institute of Pharmacy, Martin Luther University Halle-Wittenberg, D-06099 Halle (Saale), Germany.
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Kuruvilla SP, Tiruchinapally G, Kaushal N, ElSayed ME. Effect of N-acetylgalactosamine ligand valency on targeting dendrimers to hepatic cancer cells. Int J Pharm 2018; 545:27-36. [DOI: 10.1016/j.ijpharm.2018.04.028] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2017] [Revised: 02/28/2018] [Accepted: 04/13/2018] [Indexed: 12/21/2022]
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Enhanced nanoparticle uptake into virus infected cells: Could nanoparticles be useful in antiviral therapy? Int J Pharm 2018; 547:572-581. [PMID: 29908332 DOI: 10.1016/j.ijpharm.2018.06.027] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2018] [Revised: 05/26/2018] [Accepted: 06/09/2018] [Indexed: 12/31/2022]
Abstract
Virus infections cause diseases of different severity ranged from mild infection e.g. common cold into life threatening diseases e.g. Human Immunodeficiency virus (HIV), Hepatitis B. Virus infections represent 44% of newly emerging infections. Although there are many efficient antiviral agents, they still have drawbacks due to accumulation at off target organs and developing of virus resistance due to virus mutation. Therefore, developing a delivery system that can selectively target drug into affected organs and avoid off target accumulation would be a highly advantageous strategy to improve antiviral therapy. Nanoparticles (NP) can be effectively targeted to the liver, and therefore it could be used for improving therapy of hepatic virus infections including hepatitis B virus and hepatitis C virus (HCV). Many studies were performed to encapsulate antiviral agents into nano-delivery system to improve their pharmacokinetics parameters to have a better therapeutic efficacy with lower side effects. However, the effect of virus infection on the uptake of NP has not yet been studied in detail. The latter is a crucial area as modulation of endocytic uptake of nanoparticles could impact on reduce potential therapeutic usefulness of antiviral agents loaded into nano-delivery system. In this study, a fluorescently-labelled polymeric nanoparticle was prepared and used to track NP uptake into Huh7.5, human hepatoma cells transfected with replicating HCV genomes, compared with non-transfected cells as a model representing hepatocyte uptake. Confocal microscopy and flow cytometry of virus transfected Huh7.5 cells unexpectedly demonstrated two-fold increase in uptake of NP compared to non-transfected cells. Therefore, virus transfection enhanced NP uptake into Huh7.5 cells and NP could be considered as a promising delivery system for targeted treatment of hepatitis viruses.
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Aguilar LE, Thomas RG, Moon MJ, Jeong YY, Park CH, Kim CS. Implantable chemothermal brachytherapy seeds: A synergistic approach to brachytherapy using polymeric dual drug delivery and hyperthermia for malignant solid tumor ablation. Eur J Pharm Biopharm 2018; 129:191-203. [PMID: 29879526 DOI: 10.1016/j.ejpb.2018.06.003] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2017] [Revised: 06/01/2018] [Accepted: 06/02/2018] [Indexed: 01/08/2023]
Abstract
Chemothermal brachytherapy seeds have been developed using a combination of polymeric dual drug chemotherapy and alternating magnetic field induced hyperthermia. The synergistic effect of chemotherapy and hyperthermia brachytherapy has been investigated in a way that has never been performed before, with an in-depth analysis of the cancer cell inhibition property of the new system. A comprehensive in vivo study on athymic mice model with SCC7 tumor has been conducted to determine optimal arrays and specifications of the chemothermal seeds. Dual drug chemotherapy has been achieved via surface deposition of polydopamine that carries bortezomib, and also via loading an acidic pH soluble hydrogel that contains 5-Fluorouracil inside the chemothermal seed; this increases the drug loading capacity of the chemothermal seed, and creates dual drug synergism. An external alternating magnetic field has been utilized to induce hyperthermia conditions, using the inherent ferromagnetic property of the nitinol alloy used as the seed casing. The materials used in this study were fully characterized using FESEM, H1 NMR, FT-IR, and XPS to validate their properties. This new approach to experimental cancer treatment is a pilot study that exhibits the potential of thermal brachytherapy and chemotherapy as a combined treatment modality.
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Affiliation(s)
- Ludwig Erik Aguilar
- Department of Bionanosystem Engineering, Graduate School, Chonbuk National University, Republic of Korea
| | - Reju George Thomas
- Department of Radiology, Chonnam National University Hwasun Hospital, Hwasun 58128, Republic of Korea
| | - Myeong Ju Moon
- Department of Radiology, Chonnam National University Hwasun Hospital, Hwasun 58128, Republic of Korea
| | - Yong Yeon Jeong
- Department of Radiology, Chonnam National University Hwasun Hospital, Hwasun 58128, Republic of Korea
| | - Chan Hee Park
- Department of Bionanosystem Engineering, Graduate School, Chonbuk National University, Republic of Korea.
| | - Cheol Sang Kim
- Department of Bionanosystem Engineering, Graduate School, Chonbuk National University, Republic of Korea.
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48
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Suksiriworapong J, Taresco V, Ivanov DP, Styliari ID, Sakchaisri K, Junyaprasert VB, Garnett MC. Synthesis and properties of a biodegradable polymer-drug conjugate: Methotrexate-poly(glycerol adipate). Colloids Surf B Biointerfaces 2018; 167:115-125. [PMID: 29631222 DOI: 10.1016/j.colsurfb.2018.03.048] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2017] [Revised: 03/10/2018] [Accepted: 03/27/2018] [Indexed: 01/09/2023]
Abstract
Polymer-drug conjugates have been actively developed as potential anticancer drug delivery systems. In this study, we report the first polymer-anticancer drug conjugate with poly(glycerol adipate) (PGA) through the successful conjugation of methotrexate (MTX). MTX-PGA conjugates were controllably and simply fabricated by carbodiimide-mediated coupling reaction with various high molar ratios of MTX. The MTX-PGA conjugate self-assembled into nanoparticles with size dependent on the amount of conjugated MTX and the pH of medium. Change in particle size was attributed to steric hindrance and bulkiness inside the nanoparticle core and dissociation of free functional groups of the drug. The MTX-PGA nanoparticles were physically stable in media with pH range of 5-9 and ionic strength of up to 0.15 M NaCl and further chemically stable against hydrolysis in pH 7.4 medium over 30 days but enzymatically degradable to release unchanged free drug. Although 30%MTX-PGA nanoparticles exhibited only slightly less potency than free MTX in 791T cells in contrast to previously reported human serum albumin-MTX conjugates which had >300 times lower potency than free MTX. However, the MTX nanoparticles showed 7 times higher toxicity to Saos-2 cells than MTX. Together with the enzymic degradation experiments, these results suggest that with a suitable biodegradable polymer a linker moiety is not a necessary component. These easily synthesised PGA drug conjugates lacking a linker moiety could therefore be an effective new pathway for development of polymer drug conjugates.
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Affiliation(s)
- Jiraphong Suksiriworapong
- Department of Pharmacy, Faculty of Pharmacy, Mahidol University, Ratchathewi, Bangkok 10400, Thailand; Center of Excellence in Innovative Drug Delivery and Nanomedicine, Faculty of Pharmacy, Mahidol University, Ratchathewi, Bangkok, 10400, Thailand.
| | - Vincenzo Taresco
- University of Nottingham, School of Pharmacy, University Park, Nottingham, NG7 2RD, UK
| | - Delyan P Ivanov
- Division of Cancer and Stem Cells, Cancer Biology, University of Nottingham, Nottingham, NG7 2RD, UK
| | - Ioanna D Styliari
- University of Nottingham, School of Pharmacy, University Park, Nottingham, NG7 2RD, UK
| | - Krisada Sakchaisri
- Department of Pharmacology, Faculty of Pharmacy, Mahidol University, Ratchathewi, Bangkok, 10400, Thailand
| | - Varaporn Buraphacheep Junyaprasert
- Department of Pharmacy, Faculty of Pharmacy, Mahidol University, Ratchathewi, Bangkok 10400, Thailand; Center of Excellence in Innovative Drug Delivery and Nanomedicine, Faculty of Pharmacy, Mahidol University, Ratchathewi, Bangkok, 10400, Thailand
| | - Martin C Garnett
- University of Nottingham, School of Pharmacy, University Park, Nottingham, NG7 2RD, UK
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Wersig T, Hacker M, Kressler J, Mäder K. Poly(glycerol adipate) – indomethacin drug conjugates – synthesis and in vitro characterization. Int J Pharm 2017; 531:225-234. [DOI: 10.1016/j.ijpharm.2017.08.093] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2017] [Revised: 08/18/2017] [Accepted: 08/20/2017] [Indexed: 01/28/2023]
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50
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Slavko E, Taylor MS. Catalyst-controlled polycondensation of glycerol with diacyl chlorides: linear polyesters from a trifunctional monomer. Chem Sci 2017; 8:7106-7111. [PMID: 29147540 PMCID: PMC5637463 DOI: 10.1039/c7sc01886j] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2017] [Accepted: 08/21/2017] [Indexed: 12/20/2022] Open
Abstract
Selective activation of diol groups by a borinic acid catalyst enables the synthesis of strictly linear polyesters from glycerol, a trifunctional monomer.
Diarylborinic acids catalyze the formation of linear polyesters from glycerol, a trifunctional, carbohydrate-based monomer. The selective activation of 1,2-diols over isolated alcohols by the organoboron catalyst results in polymers that are essentially free of branching or cross-linking and possess a high fraction of 1,3-enchained glycerol units, as assessed by 1H and 13C NMR spectroscopy. The ability to generate well-defined polyester architectures from glycerol is significant in light of the numerous applications of such macromolecules, particularly in the biomedical area. Isomerization, post-polymerization functionalization and controlled cross-linking reactions of the obtained linear poly(glycerol esters) are demonstrated.
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Affiliation(s)
- Ekaterina Slavko
- Department of Chemistry , University of Toronto , Toronto , ON M5S 3H6 , Canada .
| | - Mark S Taylor
- Department of Chemistry , University of Toronto , Toronto , ON M5S 3H6 , Canada .
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