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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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2
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Mahmoud MH, El-Gogary RI, Soliman ME, Kamel AO. Novel green-based polyglycerol polymeric nanoparticles loaded with ferulic acid: A promising approach for hepatoprotection. Int J Biol Macromol 2024; 264:130698. [PMID: 38458296 DOI: 10.1016/j.ijbiomac.2024.130698] [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: 11/23/2023] [Revised: 03/03/2024] [Accepted: 03/05/2024] [Indexed: 03/10/2024]
Abstract
In the pursuit of eco-friendly and sustainable materials, polyglycerol diacid polymers hold immense promise for drug delivery compared to those derived from fossil fuels. Harnessing this potential, we aimed to prepare nanoparticles (NPs) derived from sustainable polymers, loaded with ferulic acid (FA), a natural polyphenolic compound known for its shielding effect against liver-damaging agents, including carbon tetrachloride (CCl4). Glycerol was esterified with renewable monomers, such as succinic acid, adipic acid, and/or FA, resulting in the creation of a novel class of polyglycerol diacid polymers. Characterization via Fourier-transform infrared spectroscopy and nuclear magnetic resonance confirmed the successful synthesis of these polymers with <7 % residual monomers. FA-loaded NPs were fabricated using the newly synthesized polymers. To further augment their potential, the NPs were coated with chitosan. The chitosan-coated NPs boasted an optimal PS of 290 ± 5.03 nm, showing superior physical stability, and a commendable EE% of 58.79 ± 0.43%w/v. The cytotoxicity was examined on fibroblast cells using the SRB assay. In-vivo experiments employing a CCl4-induced liver injury model yielded compelling evidence of the heightened hepatoprotective effects conferred by chitosan-coated particles. This demonstrates the benefits of incorporating sustainable polymers into innovative composites for efficient drug delivery, indicating their potential for creating versatile platforms for various therapeutic applications.
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Affiliation(s)
- Mariam H Mahmoud
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Ain Shams University, Cairo, 11566, Egypt
| | - Riham I El-Gogary
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Ain Shams University, Cairo, 11566, Egypt
| | - Mahmoud E Soliman
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Ain Shams University, Cairo, 11566, Egypt; Egypt Japan University of Science and Technology, Egypt
| | - Amany O Kamel
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Ain Shams University, Cairo, 11566, Egypt.
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3
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Rashid H, Lucas H, Busse K, Kressler J, Mäder K, Trutschel ML. Development of Poly(sorbitol adipate)- g-poly(ethylene glycol) Mono Methyl Ether-Based Hydrogel Matrices for Model Drug Release. Gels 2023; 10:17. [PMID: 38247740 PMCID: PMC10815636 DOI: 10.3390/gels10010017] [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: 12/04/2023] [Revised: 12/19/2023] [Accepted: 12/19/2023] [Indexed: 01/23/2024] Open
Abstract
Hydrogels were prepared by Steglich esterification and by crosslinking pre-synthesized poly(sorbitol adipate)-graft-poly(ethylene glycol) mono methyl ether (PSA-g-mPEG) using different-chain-length-based disuccinyl PEG. PSA and PSA-g-mPEG were investigated for polymer degradation as a function of time at different temperatures. PSA-g-mPEG hydrogels were then evaluated for their most crucial properties of swelling that rendered them suitable for many pharmaceutical and biomedical applications. Hydrogels were also examined for their Sol-Gel content in order to investigate the degree of cross-linking. Physical structural parameters of the hydrogels were theoretically estimated using the modified Flory-Rehner theory to obtain approximate values of polymer volume fraction, the molecular weight between two crosslinks, and the mesh size of the hydrogels. X-ray diffraction was conducted to detect the presence or absence of crystalline regions in the hydrogels. PSA-g-mPEG hydrogels were then extensively examined for higher and lower molecular weight solute release through analysis by fluorescence spectroscopy. Finally, the cytotoxicity of the hydrogels was also investigated using a resazurin reduction assay. Experimental results show that PSA-g-mPEG provides an option as a biocompatible polymer to be used for pharmaceutical applications.
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Affiliation(s)
- Haroon Rashid
- Institute of Pharmacy, Martin Luther University Halle-Wittenberg, D-06120 Halle (Saale), Germany
- Department of Chemistry, Martin Luther University Halle-Wittenberg, D-06120 Halle (Saale), Germany
| | - Henrike Lucas
- Institute of Pharmacy, Martin Luther University Halle-Wittenberg, D-06120 Halle (Saale), Germany
| | - Karsten Busse
- Department of Chemistry, Martin Luther University Halle-Wittenberg, D-06120 Halle (Saale), Germany
| | - Jörg Kressler
- Department of Chemistry, Martin Luther University Halle-Wittenberg, D-06120 Halle (Saale), Germany
| | - Karsten Mäder
- Institute of Pharmacy, Martin Luther University Halle-Wittenberg, D-06120 Halle (Saale), Germany
| | - Marie-Luise Trutschel
- Institute of Pharmacy, Martin Luther University Halle-Wittenberg, D-06120 Halle (Saale), Germany
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4
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Saatkamp RH, Dos Santos BM, Sanches MP, Conte J, Rauber GS, Caon T, Parize AL. Drug-excipient compatibility studies in formulation development: A case study with benznidazole and monoglycerides. J Pharm Biomed Anal 2023; 235:115634. [PMID: 37595356 DOI: 10.1016/j.jpba.2023.115634] [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: 05/30/2023] [Revised: 07/25/2023] [Accepted: 08/07/2023] [Indexed: 08/20/2023]
Abstract
Monoglycerides (MGs) such as glycerol monolaurate (GML) and glycerol monostearate (GMS) have been used as excipients in oral formulations because of their emulsifying effect as well as their ability to inhibit the precipitation and intestinal efflux of drugs. Excipient-drug compatibility studies, however, have been underexplored. In this study, benznidazole (BNZ) was selected as a drug model due to the difficulty in improving its solubility and because of the potential impact on public health (it is the only drug currently used to treat Chagas disease). The effect of different processing conditions (maceration, ball milling, and melting) on the physical-chemistry properties of BNZ/MGs mixtures was investigated to guide the rational development of new solid formulations. GML was more effective in improving the solubility of BNZ, which could be due to its more malleable structure, less hydrophobic nature, and greater interaction with BNZ. The formation of hydrogen bonds between the imidazole group of BNZ and the polar region of GML was confirmed by spectroscopy analyses (IR, 1H NMR). The higher the monoglyceride content in the mixture, the higher the BNZ solubility. Regardless of the method of processing the mixture, the drug was found to be crystalline. Polarized light microscopy analysis showed the presence of spherulites. Overall, these findings suggest that preparation methods of BNZ:MGs formulations that involve thermal or/and mechanical treatment have a low impact on the solid properties of the material, and this allows for the production of formulations with reproducible performance.
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Affiliation(s)
- Rodrigo Henrique Saatkamp
- Polymeric Materials Research Group, Chemistry Department, Federal University of Santa Catarina, Trindade, 88040-900 Florianópolis, SC, Brazil
| | - Bruna Mattos Dos Santos
- Polymeric Materials Research Group, Chemistry Department, Federal University of Santa Catarina, Trindade, 88040-900 Florianópolis, SC, Brazil
| | - Mariele Paludetto Sanches
- Polymeric Materials Research Group, Chemistry Department, Federal University of Santa Catarina, Trindade, 88040-900 Florianópolis, SC, Brazil
| | - Julia Conte
- Postgraduate Program in Pharmacy (PGFAR), Federal University of Santa Catarina, Trindade, 88040-900 Florianópolis, SC, Brazil
| | - Gabriela Schneider Rauber
- Czech Advanced Technology and Research Institute (CATRIN), Palacký University Olomouc, Šlechtitelů 241/27, 779 00 Olomouc, Czech Republic
| | - Thiago Caon
- Postgraduate Program in Pharmacy (PGFAR), Federal University of Santa Catarina, Trindade, 88040-900 Florianópolis, SC, Brazil
| | - Alexandre Luis Parize
- Polymeric Materials Research Group, Chemistry Department, Federal University of Santa Catarina, Trindade, 88040-900 Florianópolis, SC, Brazil.
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5
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Fakhri V, Su CH, Tavakoli Dare M, Bazmi M, Jafari A, Pirouzfar V. Harnessing the power of polyol-based polyesters for biomedical innovations: synthesis, properties, and biodegradation. J Mater Chem B 2023; 11:9597-9629. [PMID: 37740402 DOI: 10.1039/d3tb01186k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/24/2023]
Abstract
Polyesters based on polyols have emerged as promising biomaterials for various biomedical applications, such as tissue engineering, drug delivery systems, and regenerative medicine, due to their biocompatibility, biodegradability, and versatile physicochemical properties. This review article provides an overview of the synthesis methods, performance, and biodegradation mechanisms of polyol-based polyesters, highlighting their potential for use in a wide range of biomedical applications. The synthesis techniques, such as simple polycondensation and enzymatic polymerization, allow for the fine-tuning of polyester structure and molecular weight, thereby enabling the tailoring of material properties to specific application requirements. The physicochemical properties of polyol-based polyesters, such as hydrophilicity, crystallinity, and mechanical properties, can be altered by incorporating different polyols. The article highlights the influence of various factors, such as molecular weight, crosslinking density, and degradation medium, on the biodegradation behavior of these materials, and the importance of understanding these factors for controlling degradation rates. Future research directions include the development of novel polyesters with improved properties, optimization of degradation rates, and exploration of advanced processing techniques for fabricating scaffolds and drug delivery systems. Overall, polyol-based polyesters hold significant potential in the field of biomedical applications, paving the way for groundbreaking advancements and innovative solutions that could revolutionize patient care and treatment outcomes.
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Affiliation(s)
- Vafa Fakhri
- Department of Polymer Engineering & Color Technology, Amirkabir University of Technology, P.O. Box 15875-4413, Tehran, Iran.
| | - Chia-Hung Su
- Department of Chemical Engineering, Ming Chi University of Technology, New Taipei City, Taiwan
| | - Masoud Tavakoli Dare
- Department of Polymer Engineering & Color Technology, Amirkabir University of Technology, P.O. Box 15875-4413, Tehran, Iran.
| | - Maryam Bazmi
- Department of Polymer Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Aliakbar Jafari
- Department of Polymer Engineering & Color Technology, Amirkabir University of Technology, P.O. Box 15875-4413, Tehran, Iran.
| | - Vahid Pirouzfar
- Department of Chemical Engineering, Central Tehran Branch, Islamic Azad University, Tehran, Iran
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6
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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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7
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Díaz-Ramos DI, Ortiz-Basurto RI, García-Barradas O, Chacón-López MA, Montalvo-González E, Pascual-Pineda LA, Valenzuela-Vázquez U, Jiménez-Fernández M. Lauroylated, Acetylated, and Succinylated Agave tequilana Fructans Fractions: Structural Characterization, Prebiotic, Antibacterial Activity and Their Effect on Lactobacillus paracasei under Gastrointestinal Conditions. Polymers (Basel) 2023; 15:3115. [PMID: 37514505 PMCID: PMC10383541 DOI: 10.3390/polym15143115] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Revised: 07/05/2023] [Accepted: 07/07/2023] [Indexed: 07/30/2023] Open
Abstract
The effect of chemical modification of fractions of native agave fructans (NAF), high performance (HPAF), and a high degree of polymerization (HDPAF) by lauroylation, acetylation, and succinylation reactions on their prebiotic activity, antibacterial properties were evaluated and survival of L. paracasei in a simulated gastrointestinal system. The characterization of the reactions was confirmed by NMR and FTIR. The lauroylated and succinylated fructan fractions showed higher antibacterial activity against pathogenic bacteria such as Escherichia coli, Enterococcus faecalis and Staphylococcus aureus than the unmodified ones. Analyses with L. paracasei showed that the acetylated fructan fractions had a greater prebiotic effect, and simulated gastrointestinal tests demonstrated that the acetylated and succinylated fractions favored the survival of L. paracasei during the gastrointestinal phase. The effect of modifying the agave fructans fractions on the evaluated properties depended on the structure, size, and polarity of each incorporated functional group, as well as the degree of polymerization and substitution of each fraction. These results show that the chemical modification of the fructan fractions analyzed improves their functional properties, offering an alternative in the food and pharmaceutical industry.
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Affiliation(s)
- Dafne I Díaz-Ramos
- Laboratorio Integral de Investigación en Alimentos, Tecnológico Nacional de México-Instituto Tecnológico de Tepic, Tepic 63175, Nayarit, Mexico
| | - Rosa I Ortiz-Basurto
- Laboratorio Integral de Investigación en Alimentos, Tecnológico Nacional de México-Instituto Tecnológico de Tepic, Tepic 63175, Nayarit, Mexico
| | - Oscar García-Barradas
- Instituto de Química Aplicada, Universidad Veracruzana, Xalapa 91190, Veracruz, Mexico
| | - Martina A Chacón-López
- Laboratorio Integral de Investigación en Alimentos, Tecnológico Nacional de México-Instituto Tecnológico de Tepic, Tepic 63175, Nayarit, Mexico
| | - Efigenia Montalvo-González
- Laboratorio Integral de Investigación en Alimentos, Tecnológico Nacional de México-Instituto Tecnológico de Tepic, Tepic 63175, Nayarit, Mexico
| | - Luz A Pascual-Pineda
- Centro de Investigación y Desarrollo en Alimentos, Universidad Veracruzana, Xalapa 91190, Veracruz, Mexico
| | | | - Maribel Jiménez-Fernández
- Centro de Investigación y Desarrollo en Alimentos, Universidad Veracruzana, Xalapa 91190, Veracruz, Mexico
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8
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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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9
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Suksiriworapong J, Pongprasert N, Bunsupa S, Taresco V, Crucitti VC, Janurai T, Phruttiwanichakun P, Sakchaisri K, Wongrakpanich A. CD44-Targeted Lipid Polymer Hybrid Nanoparticles Enhance Anti-Breast Cancer Effect of Cordyceps militaris Extracts. Pharmaceutics 2023; 15:1771. [PMID: 37376218 DOI: 10.3390/pharmaceutics15061771] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Revised: 06/13/2023] [Accepted: 06/15/2023] [Indexed: 06/29/2023] Open
Abstract
This study aimed to improve the anticancer effect of Cordyceps militaris herbal extract (CME) on breast cancer cells with hyaluronic acid (HYA) surface-decorated lipid polymer hybrid nanoparticles (LPNPs) and evaluate the applicability of a synthesized poly(glycerol adipate) (PGA) polymer for LPNP preparation. Firstly, cholesterol- and vitamin E-grafted PGA polymers (PGA-CH and PGA-VE, respectively) were fabricated, with and without maleimide-ended polyethylene glycol. Subsequently, CME, which contained an active cordycepin equaling 9.89% of its weight, was encapsulated in the LPNPs. The results revealed that the synthesized polymers could be used to prepare CME-loaded LPNPs. The LPNP formulations containing Mal-PEG were decorated with cysteine-grafted HYA via thiol-maleimide reactions. The HYA-decorated PGA-based LPNPs substantially enhanced the anticancer effect of CME against MDA-MB-231 and MCF-7 breast cancer cells by enhancing cellular uptake through CD44 receptor-mediated endocytosis. This study demonstrated the successful targeted delivery of CME to the CD44 receptors of tumor cells by HYA-conjugated PGA-based LPNPs and the new application of synthesized PGA-CH- and PGA-VE-based polymers in LPNP preparation. The developed LPNPs showed promising potential for the targeted delivery of herbal extracts for cancer treatment and clear potential for translation in in vivo experiments.
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Affiliation(s)
| | - Nutthachai Pongprasert
- Division of Postharvest Technology, School of Bioresources and Technology, King Mongkut's University of Technology Thonburi, Bangkok 10150, Thailand
| | - Somnuk Bunsupa
- Department of Pharmacognosy, Faculty of Pharmacy, Mahidol University, Bangkok 10400, Thailand
| | - Vincenzo Taresco
- School of Chemistry, University of Nottingham, 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
| | - Thitapa Janurai
- Department of Pharmacy, Faculty of Pharmacy, Mahidol University, Bangkok 10400, Thailand
| | | | - Krisada Sakchaisri
- Department of Pharmacology, Faculty of Pharmacy, Mahidol University, Bangkok 10400, Thailand
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10
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Poly(Glycerol Succinate) as Coating Material for 1393 Bioactive Glass Porous Scaffolds for Tissue Engineering Applications. Polymers (Basel) 2022; 14:polym14225028. [PMID: 36433155 PMCID: PMC9697483 DOI: 10.3390/polym14225028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Revised: 11/06/2022] [Accepted: 11/15/2022] [Indexed: 11/22/2022] Open
Abstract
BACKGROUND Aliphatic polyesters are widely used for biomedical, pharmaceutical and environmental applications due to their high biodegradability and cost-effective production. Recently, star and hyperbranched polyesters based on glycerol and ω-carboxy fatty diacids have gained considerable interest. Succinic acid and bio-based diacids similar to glycerol are regarded as safe materials according to the US Food and Drug Administration (FDA). Bioactive glass scaffolds utilized in bone tissue engineering are relatively brittle materials. However, their mechanical properties can be improved by using polymer coatings that can further control their degradation rate, tailor their biocompatibility and enhance their performance. The purpose of this study is to explore a new biopolyester poly(glycerol succinate) (PGSuc) reinforced with mesoporous bioactive nanoparticles (MSNs) as a novel coating material to produce hybrid scaffolds for bone tissue engineering. METHODS Bioactive glass scaffolds were coated with neat PGSuc, PGSuc loaded with dexamethasone sodium phosphate (DexSP) and PGSuc loaded with DexSP-laden MSNs. The physicochemical, mechanical and biological properties of the scaffolds were also evaluated. RESULTS Preliminary data are provided showing that polymer coatings with and without MSNs improved the physicochemical properties of the 1393 bioactive glass scaffolds and increased the ALP activity and alizarin red staining, suggesting osteogenic differentiation potential when cultured with adipose-derived mesenchymal stem cells. CONCLUSIONS PGSuc with incorporated MSNs coated onto 1393 bioactive glass scaffolds could be promising candidates in bone tissue engineering applications.
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11
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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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12
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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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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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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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16
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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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17
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Rashid H, Golitsyn Y, Bilal MH, Mäder K, Reichert D, Kressler J. Polymer Networks Synthesized from Poly(Sorbitol Adipate) and Functionalized Poly(Ethylene Glycol). Gels 2021; 7:22. [PMID: 33672681 PMCID: PMC8006044 DOI: 10.3390/gels7010022] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Revised: 02/12/2021] [Accepted: 02/13/2021] [Indexed: 12/31/2022] Open
Abstract
Polymer networks were prepared by Steglich esterification using poly(sorbitol adipate) (PSA) and poly(sorbitol adipate)-graft-poly(ethylene glycol) mono methyl ether (PSA-g-mPEG12) copolymer. Utilizing multi-hydroxyl functionalities of PSA, poly(ethylene glycol) (PEG) was first grafted onto a PSA backbone. Then the cross-linking of PSA or PSA-g-mPEG12 was carried out with disuccinyl PEG of different molar masses (Suc-PEGn-Suc). Polymers were characterized through nuclear magnetic resonance (NMR) spectroscopy, gel permeation chromatography (GPC), and differential scanning calorimetry (DSC). The degree of swelling of networks was investigated through water (D2O) uptake studies, while for detailed examination of their structural dynamics, networks were studied using 13C magic angle spinning NMR (13C MAS NMR) spectroscopy, 1H double quantum NMR (1H DQ NMR) spectroscopy, and 1H pulsed field gradient NMR (1H PFG NMR) spectroscopy. These solid state NMR results revealed that the networks were composed of a two component structure, having different dipolar coupling constants. The diffusion of solvent molecules depended on the degree of swelling that was imparted to the network by the varying chain length of the PEG based cross-linking agent.
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Affiliation(s)
- Haroon Rashid
- Department of Chemistry, Martin Luther University Halle-Wittenberg, D-06120 Halle (Saale), Germany; (H.R.); (M.H.B.)
- Institute of Pharmacy, Martin Luther University Halle-Wittenberg, D-06120 Halle (Saale), Germany;
| | - Yury Golitsyn
- Department of Physics, Martin Luther University Halle-Wittenberg, D-06120 Halle (Saale), Germany; (Y.G.); (D.R.)
| | - Muhammad Humayun Bilal
- Department of Chemistry, Martin Luther University Halle-Wittenberg, D-06120 Halle (Saale), Germany; (H.R.); (M.H.B.)
| | - Karsten Mäder
- Institute of Pharmacy, Martin Luther University Halle-Wittenberg, D-06120 Halle (Saale), Germany;
| | - Detlef Reichert
- Department of Physics, Martin Luther University Halle-Wittenberg, D-06120 Halle (Saale), Germany; (Y.G.); (D.R.)
| | - Jörg Kressler
- Department of Chemistry, Martin Luther University Halle-Wittenberg, D-06120 Halle (Saale), Germany; (H.R.); (M.H.B.)
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18
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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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19
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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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20
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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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21
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Animasawun RK, Taresco V, Swainson SME, Suksiriworapong J, Walker DA, Garnett MC. Screening and Matching Polymers with Drugs to Improve Drug Incorporation and Retention in Nanoparticles. Mol Pharm 2020; 17:2083-2098. [PMID: 32348676 DOI: 10.1021/acs.molpharmaceut.0c00236] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Key challenges hindering the clinical translation of the use of nanoparticles (NP) for delivery of drugs to tumors are inadequate drug loading and premature drug release. This study focused on understanding the conditions required to produce nanoparticles that can reach their target site with sufficient drug loading and drug retention for effective pharmacological action. Etoposide, etoposide phosphate, and teniposide were screened against modified poly(glycerol) adipate (PGA) based polymers by monitoring drug release from 40% drug in polymer films and using Fourier transform infrared spectroscopy (FTIR) and contact angle measurements to help understand the release results. Polymers were matched with the specific drugs based on the interactions observed. NP were then prepared by an interfacial deposition method. NPs were characterized and resulted in drug loadings ranging from 3.5% and 5%, respectively, for etoposide phosphate and etoposide with PGA modified with stearate (PGA85%C18) up to 13.4% for teniposide with PGA modified with tryptophan (PGA50%Try) and drug release of just 22-35% over 24 h. Assessment of cytotoxicity showed that etoposide nanoparticles with PGA85%C18 were more potent than an equivalent amount of free drug. This screening method to match polymers to drugs to monitor based drug and polymer interactions thus resulted in the formulation of nanoparticles with higher drug loading and slower release and potential for further development for clinical applications.
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Affiliation(s)
- Rashidat K Animasawun
- Division of Molecular Therapeutics and Formulation, School of Pharmacy, University of Nottingham, University Park, Nottingham, NG7 2RD, United Kingdom
| | - Vincenzo Taresco
- School of Chemistry, University of Nottingham, Nottingham NG7 2RD, United Kingdom
| | - Sadie M E Swainson
- Division of Molecular Therapeutics and Formulation, School of Pharmacy, University of Nottingham, University Park, Nottingham, NG7 2RD, United Kingdom
| | - Jiraphong Suksiriworapong
- Department of Pharmacy, Faculty of Pharmacy, Mahidol University, Bangkok 10400, Thailand.,Center of Excellence in Innovative Drug Delivery and Nanomedicine, Faculty of Pharmacy, Mahidol University, 447 Sri-Ayudhaya Road, Ratchathewi, Bangkok 10400, Thailand
| | - David A Walker
- Children's Brain Tumour Research Centre, University of Nottingham, Nottingham, NG7 2RD, United Kingdom
| | - Martin C Garnett
- Division of Molecular Therapeutics and Formulation, School of Pharmacy, University of Nottingham, University Park, Nottingham, NG7 2RD, United Kingdom
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22
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Gordhan D, Swainson SM, Pearce AK, Styliari ID, Lovato T, Burley JC, Garnett MC, Taresco V. Poly (Glycerol Adipate): From a Functionalized Nanocarrier to a Polymeric-Prodrug Matrix to Create Amorphous Solid Dispersions. J Pharm Sci 2020; 109:1347-1355. [DOI: 10.1016/j.xphs.2019.12.004] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2019] [Revised: 10/21/2019] [Accepted: 12/03/2019] [Indexed: 12/16/2022]
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23
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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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24
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O'Brien DM, Atkinson RL, Cavanagh R, Pacheco AA, Larder R, Kortsen K, Krumins E, Haddleton AJ, Alexander C, Stockman RA, Howdle SM, Taresco V. A ‘greener’ one-pot synthesis of monoterpene-functionalised lactide oligomers. Eur Polym J 2020. [DOI: 10.1016/j.eurpolymj.2020.109516] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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25
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Synthesis and Characterization of Linear Polyisoprene Supramolecular Elastomers Based on Quadruple Hydrogen Bonding. Polymers (Basel) 2020; 12:polym12010110. [PMID: 31948020 PMCID: PMC7022871 DOI: 10.3390/polym12010110] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2019] [Revised: 12/11/2019] [Accepted: 12/12/2019] [Indexed: 02/07/2023] Open
Abstract
Supramolecular elastomers based on quaternary hydrogen bonding of ureido-pyrimidinone (UPy) groups own special properties such as reversibility, self-healing, and good processability, which can be used in many special fields. In this paper, a novel type of linear polyisoprene supramolecular elastomer (LPSE) was prepared via anionic polymerization by deliberately introducing hydroxyl, isocyanate, and UPy groups into the ends. The formation of supramolecular structure showed significant effects on the microphase structures of LPSE, which was characterized by Fourier-transform infrared spectroscopy (FTIR), gel permeation chromatography (GPC), hydrogen nuclear magnetic resonance (1H-NMR), and dynamic mechanical analysis (DMA). Results showed that the introduction of UPy groups played a certain role in the improvement of the thermal stability, toughness, and tensile strength of the elastomer. Moreover, from self-healing tests, the hydrogen bonds of UPy showed dynamic characteristics which were different from covalent sacrificial bonds and exhibited the reassociation phenomenon. This study can not only extend our understanding of the toughening effect of strong hydrogen bonds, but also help us to rationally design new and tough elastomers.
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26
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Styliari ID, Taresco V, Theophilus A, Alexander C, Garnett M, Laughton C. Nanoformulation-by-design: an experimental and molecular dynamics study for polymer coated drug nanoparticles. RSC Adv 2020; 10:19521-19533. [PMID: 35515456 PMCID: PMC9054057 DOI: 10.1039/d0ra00408a] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2020] [Accepted: 04/08/2020] [Indexed: 12/27/2022] Open
Abstract
Experimental studies of drug–polymer nanoparticle formation combined with molecular dynamics simulations provide atomistic explanations for the high drug loadings obtained.
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27
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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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28
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Alaneed R, Hauenschild T, Mäder K, Pietzsch M, Kressler J. Conjugation of Amine-Functionalized Polyesters With Dimethylcasein Using Microbial Transglutaminase. J Pharm Sci 2019; 109:981-991. [PMID: 31682828 DOI: 10.1016/j.xphs.2019.10.052] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2019] [Revised: 10/28/2019] [Accepted: 10/28/2019] [Indexed: 10/25/2022]
Abstract
Protein-polymer conjugates have been used as therapeutics because they exhibit frequently higher stability, prolonged in vivo half-life, and lower immunogenicity compared with native proteins. The first part of this report describes the enzymatic synthesis of poly(glycerol adipate) (PGA(M)) by transesterification between glycerol and dimethyl adipate using lipase B from Candida antarctica. PGA(M) is a hydrophilic, biodegradable but water insoluble polyester. By acylation, PGA(M) is modified with 6-(Fmoc-amino)hexanoic acid and with hydrophilic poly(ethylene glycol) side chains (mPEG12) rendering the polymer highly water soluble. This is followed by the removal of protecting groups, fluorenylmethyloxycarbonyl, to generate polyester with primary amine groups, namely PGA(M)-g-NH2-g-mPEG12. 1H NMR spectroscopy, FTIR spectroscopy, and gel permeation chromatography have been used to determine the chemical structure and polydispersity index of PGA(M) before and after modification. In the second part, we discuss the microbial transglutaminase-mediated conjugation of the model protein dimethylcasein with PGA(M)-g-NH2-g-mPEG12 under mild reaction conditions. SDS-PAGE proves the protein-polyester conjugation.
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Affiliation(s)
- Razan Alaneed
- Department of Physical Chemistry, Institute of Chemistry, Martin Luther University Halle-Wittenberg, D-06099 Halle/Saale, Germany; Department of Pharmaceutical Technology and Biopharmacy, Institute of Pharmacy, Martin Luther University Halle-Wittenberg, Wolfgang-Langenbeck-Str. 4, D-06120 Halle/Saale, Germany
| | - Till Hauenschild
- Department of Physical Chemistry, Institute of Chemistry, Martin Luther University Halle-Wittenberg, D-06099 Halle/Saale, Germany
| | - Karsten Mäder
- Department of Pharmaceutical Technology and Biopharmacy, Institute of Pharmacy, Martin Luther University Halle-Wittenberg, Wolfgang-Langenbeck-Str. 4, D-06120 Halle/Saale, Germany
| | - Markus Pietzsch
- Department of Pharmaceutical Technology and Biopharmacy, Institute of Pharmacy, Martin Luther University Halle-Wittenberg, Wolfgang-Langenbeck-Str. 4, D-06120 Halle/Saale, Germany.
| | - Jörg Kressler
- Department of Physical Chemistry, Institute of Chemistry, Martin Luther University Halle-Wittenberg, D-06099 Halle/Saale, Germany.
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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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30
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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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31
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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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32
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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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33
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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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34
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Qiao L, Zhao L, Ai H, Li Y, Liu Y, Du K. Diethylaminoethyl-Modified Magnetic Starlike Organic Spherical Adsorbent: Fabrication, Characterization, and Potential for Protein Adsorption. Ind Eng Chem Res 2019. [DOI: 10.1021/acs.iecr.8b05967] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Liangzhi Qiao
- Department of Pharmaceutical & Biological Engineering, School of Chemical Engineering, Sichuan University, Chengdu 610065, P.R. China
| | - Liangshen Zhao
- Department of Pharmaceutical & Biological Engineering, School of Chemical Engineering, Sichuan University, Chengdu 610065, P.R. China
| | - Hao Ai
- Department of Pharmaceutical & Biological Engineering, School of Chemical Engineering, Sichuan University, Chengdu 610065, P.R. China
| | - Yaling Li
- Department of Pharmaceutical & Biological Engineering, School of Chemical Engineering, Sichuan University, Chengdu 610065, P.R. China
| | - Yi Liu
- Department of Pharmaceutical & Biological Engineering, School of Chemical Engineering, Sichuan University, Chengdu 610065, P.R. China
| | - Kaifeng Du
- Department of Pharmaceutical & Biological Engineering, School of Chemical Engineering, Sichuan University, Chengdu 610065, P.R. China
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35
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Turpin ER, Taresco V, Al-Hachami WA, Booth J, Treacher K, Tomasi S, Alexander C, Burley J, Laughton CA, Garnett MC. In Silico Screening for Solid Dispersions: The Trouble with Solubility Parameters and χFH. Mol Pharm 2018; 15:4654-4667. [PMID: 30142269 DOI: 10.1021/acs.molpharmaceut.8b00637] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
The problem of predicting small molecule-polymer compatibility is relevant to many areas of chemistry and pharmaceutical science but particularly drug delivery. Computational methods based on Hildebrand and Hansen solubility parameters, and the estimation of the Flory-Huggins parameter, χ, have proliferated across the literature. Focusing on the need to develop amorphous solid dispersions to improve the bioavailability of poorly soluble drug candidates, an innovative, high-throughput 2D printing method has been employed to rapidly assess the compatibility of 54 drug-polymer pairings (nine drug compounds in six polymers). In this study, the first systematic assessment of the in silico methods for this application, neither the solubility parameter approach nor the calculated χ, correctly predicted drug-polymer compatibility. The theoretical limitations of the solubility parameter approach are discussed and used to explain why this approach is fundamentally unsuitable for predicting polymer-drug interactions. Examination of the original sources describing the method for calculating χ shows that only the enthalpic contributions to the term have been included, and the corrective entropic term is absent. The development and application of new in silico techniques, that consider all parts of the free energy of mixing, are needed in order to usefully predict small molecule-polymer compatibility and to realize the ambition of a drug-polymer screening method.
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Affiliation(s)
- Eleanor R Turpin
- School of Pharmacy , University of Nottingham , University Park , Nottingham NG7 2RD , U.K
| | - Vincenzo Taresco
- School of Pharmacy , University of Nottingham , University Park , Nottingham NG7 2RD , U.K
| | - Wathiq A Al-Hachami
- School of Pharmacy , University of Nottingham , University Park , Nottingham NG7 2RD , U.K
| | | | | | | | - Cameron Alexander
- School of Pharmacy , University of Nottingham , University Park , Nottingham NG7 2RD , U.K
| | - Jonathan Burley
- School of Pharmacy , University of Nottingham , University Park , Nottingham NG7 2RD , U.K
| | - Charles A Laughton
- School of Pharmacy , University of Nottingham , University Park , Nottingham NG7 2RD , U.K
| | - Martin C Garnett
- School of Pharmacy , University of Nottingham , University Park , Nottingham NG7 2RD , U.K
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36
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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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37
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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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38
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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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39
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Yin L, Xu S, Feng Z, Deng H, Zhang J, Gao H, Deng L, Tang H, Dong A. Supramolecular hydrogel based on high-solid-content mPECT nanoparticles and cyclodextrins for local and sustained drug delivery. Biomater Sci 2017; 5:698-706. [DOI: 10.1039/c6bm00889e] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
A novel injectable and high-solid-content drug-loaded supramolecular hydrogel (PTX-mPECT NP/α-CDgel) was prepared by self-assembly of inclusion complexes based on PTX-loaded mPECT nanoparticles and α-cyclodextrin.
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Affiliation(s)
- Li Yin
- Department of Polymer Science and Technology
- Key Laboratory of Systems Bioengineering of the Ministry of Education
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300072
| | - Shuxin Xu
- Department of Polymer Science and Technology
- Key Laboratory of Systems Bioengineering of the Ministry of Education
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300072
| | - Zujian Feng
- Department of Polymer Science and Technology
- Key Laboratory of Systems Bioengineering of the Ministry of Education
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300072
| | - Hongzhang Deng
- Department of Polymer Science and Technology
- Key Laboratory of Systems Bioengineering of the Ministry of Education
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300072
| | - Jianhua Zhang
- Department of Polymer Science and Technology
- Key Laboratory of Systems Bioengineering of the Ministry of Education
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300072
| | - Huijie Gao
- Tianjin Life Science Research Center and School of basic medical sciences Tianjin Medical University
- Tianjin 300070
- China
| | - Liandong Deng
- Department of Polymer Science and Technology
- Key Laboratory of Systems Bioengineering of the Ministry of Education
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300072
| | - Hua Tang
- Tianjin Life Science Research Center and School of basic medical sciences Tianjin Medical University
- Tianjin 300070
- China
| | - Anjie Dong
- Department of Polymer Science and Technology
- Key Laboratory of Systems Bioengineering of the Ministry of Education
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300072
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