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Ho TH, Tong HD, Trinh TT. Molecular insights into the interactions between PEG carriers and drug molecules from Celastrus hindsii: a multi-scale simulation study. Sci Rep 2024; 14:16777. [PMID: 39039128 DOI: 10.1038/s41598-024-67720-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2024] [Accepted: 07/15/2024] [Indexed: 07/24/2024] Open
Abstract
Efficient drug delivery is crucial for the creation of effective pharmaceutical treatments, and polyethylene glycol (PEG) carriers have been emerged as promising candidates for this purpose due to their bio-compatibility, enhancement of drug solubility, and stability. In this study, we utilized molecular simulations to examine the interactions between PEG carriers and selected drug molecules extracted from Celastrus hindsii: Hindsiilactone A, Hindsiiquinoflavan B, Maytenfolone A, and Celasdin B. The simulations provided detailed insights into the binding affinity, stability, and structural properties of these drug molecules when complexed with PEG carriers. A multi-scale approach combining density functional theory (DFT), extended tight-binding (xTB), and molecular dynamics (MD) simulations was conducted to investigate both unbound and bound states of PEG/drug systems. The results from DFT and xTB calculations revealed that the unbound complex has an unfavorable binding free energy, primarily due to negative contributions of delta solvation free energy and entropy. The MD simulations provided more detailed insights into the interactions between PEG and drug molecules in water solutions. By integrating the findings from the multi-scale simulations, a comprehensive picture of the unbound and bound states of PEG and drug systems were obtained. This information is valuable for understanding the molecular mechanisms governing the binding of drugs in PEG-based delivery platforms, and it contributes to the rational design and optimization of these systems.
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Affiliation(s)
- Thi H Ho
- Laboratory for Computational Physics, Institute for Computational Science and Artificial Intelligence, Van Lang University, Ho Chi Minh City, 70000, Vietnam
- Faculty of Mechanical - Electrical and Computer Engineering, School of Technology, Van Lang University, Ho Chi Minh City, 70000, Vietnam
| | - Hien Duy Tong
- Faculty of Engineering, Vietnamese-German University (VGU), Thu Dau Mot City, Binh Duong Province, 75000, Vietnam
| | - Thuat T Trinh
- Porelab, Department of Chemistry, Norwegian University of Science and Technology, NTNU, 7491, Trondheim, Norway.
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2
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Lustig DR, Buz E, Mulvey JT, Patterson JP, Kittilstved KR, Sambur JB. Characterizing the Ligand Shell Morphology of PEG-Coated ZnO Nanocrystals Using FRET Spectroscopy. J Phys Chem B 2023; 127:8961-8973. [PMID: 37802098 DOI: 10.1021/acs.jpcb.3c04900] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/08/2023]
Abstract
Poly(ethylene glycol) (PEG) ligands can inhibit proteins and other biomolecules from adhering to underlying surfaces, making them excellent surface ligands for nanocrystal (NC)-based drug carriers. Quantifying the PEG ligand shell morphology is important because its structure determines the permeability of biomolecules through the shell to the NC surface. However, few in situ analytical tools can reveal whether the PEG ligands form either an impenetrable barrier or a porous coating surrounding the NC. Here, we present a Förster resonance energy transfer (FRET) spectroscopy-based approach that can assess the permeability of molecules through PEG-coated ZnO NCs. In this approach, ZnO NCs serve as FRET donors, and freely diffusing molecules in the bulk solution are FRET acceptors. We synthesized a series of variable chain length PEG-silane-coated ZnO NCs such that the longest chain length ligands far exceed the Förster radius (R0), where the energy transfer (EnT) efficiency is 50%. We quantified the EnT efficiency as a function of the ligand chain length using time-resolved photoluminescence lifetime (TRPL) spectroscopy within the framework of FRET theory. Unexpectedly, the longest PEG-silane ligand showed equivalent EnT efficiency as that of bare, hydroxyl-passivated ZnO NCs. These results indicate that the "rigid shell" model fails and the PEG ligand shell morphology is more likely porous or in a patchy "mushroom state", consistent with transmission electron microscopy data. While the spectroscopic measurements and data analysis procedures discussed herein cannot directly visualize the ligand shell morphology in real space, the in situ spectroscopy approach can provide researchers with valuable information regarding the permeability of species through the ligand shell under practical biological conditions.
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Affiliation(s)
- Danielle R Lustig
- Department of Chemistry, Colorado State University, 200 West Lake Street, Fort Collins, Colorado 80523-1872, United States
| | - Enes Buz
- Department of Chemistry, University of Massachusetts Amherst, 710 North Pleasant Street, Amherst, Massachusetts 01003, United States
| | - Justin T Mulvey
- Center for Complex and Active Materials, University of California, Irvine, Irvine, California 92697-2025, United States
- Department of Materials Science and Engineering, University of California, Irvine, Irvine, California 92697-2025, United States
| | - Joseph P Patterson
- Center for Complex and Active Materials, University of California, Irvine, Irvine, California 92697-2025, United States
- Department of Chemistry, University of California, Irvine, Irvine, California 92697-2025, United States
- Department of Materials Science and Engineering, University of California, Irvine, Irvine, California 92697-2025, United States
| | - Kevin R Kittilstved
- Department of Chemistry, University of Massachusetts Amherst, 710 North Pleasant Street, Amherst, Massachusetts 01003, United States
| | - Justin B Sambur
- Department of Chemistry, Colorado State University, 200 West Lake Street, Fort Collins, Colorado 80523-1872, United States
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3
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Róg T, Girych M, Bunker A. Mechanistic Understanding from Molecular Dynamics in Pharmaceutical Research 2: Lipid Membrane in Drug Design. Pharmaceuticals (Basel) 2021; 14:1062. [PMID: 34681286 PMCID: PMC8537670 DOI: 10.3390/ph14101062] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2021] [Revised: 10/14/2021] [Accepted: 10/15/2021] [Indexed: 11/17/2022] Open
Abstract
We review the use of molecular dynamics (MD) simulation as a drug design tool in the context of the role that the lipid membrane can play in drug action, i.e., the interaction between candidate drug molecules and lipid membranes. In the standard "lock and key" paradigm, only the interaction between the drug and a specific active site of a specific protein is considered; the environment in which the drug acts is, from a biophysical perspective, far more complex than this. The possible mechanisms though which a drug can be designed to tinker with physiological processes are significantly broader than merely fitting to a single active site of a single protein. In this paper, we focus on the role of the lipid membrane, arguably the most important element outside the proteins themselves, as a case study. We discuss work that has been carried out, using MD simulation, concerning the transfection of drugs through membranes that act as biological barriers in the path of the drugs, the behavior of drug molecules within membranes, how their collective behavior can affect the structure and properties of the membrane and, finally, the role lipid membranes, to which the vast majority of drug target proteins are associated, can play in mediating the interaction between drug and target protein. This review paper is the second in a two-part series covering MD simulation as a tool in pharmaceutical research; both are designed as pedagogical review papers aimed at both pharmaceutical scientists interested in exploring how the tool of MD simulation can be applied to their research and computational scientists interested in exploring the possibility of a pharmaceutical context for their research.
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Affiliation(s)
- Tomasz Róg
- Department of Physics, University of Helsinki, 00014 Helsinki, Finland;
| | - Mykhailo Girych
- Department of Physics, University of Helsinki, 00014 Helsinki, Finland;
| | - Alex Bunker
- Drug Research Program, Division of Pharmaceutical Biosciences, Faculty of Pharmacy, University of Helsinki, 00014 Helsinki, Finland;
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4
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Synthesis, Self-Assembly and In Vitro Cellular Uptake Kinetics of Nanosized Drug Carriers Based on Aggregates of Amphiphilic Oligomers of N-Vinyl-2-pyrrolidone. MATERIALS 2021; 14:ma14205977. [PMID: 34683572 PMCID: PMC8538878 DOI: 10.3390/ma14205977] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/13/2021] [Revised: 10/07/2021] [Accepted: 10/08/2021] [Indexed: 11/17/2022]
Abstract
Development of nanocarrier-based drug delivery systems is a major breakthrough in pharmacology, promising targeted delivery and reduction in drug toxicity. On the cellular level, encapsulation of a drug substantially affects the endocytic processes due to nanocarrier–membrane interaction. In this study we synthesized and characterized nanocarriers assembled from amphiphilic oligomers of N-vinyl-2-pyrrolidone with a terminal thiooctadecyl group (PVP-OD). It was found that the dissolution free energy of PVP-OD depends linearly on the molecular mass of its hydrophilic part up to M¯n = 2 × 104, leading to an exponential dependence of critical aggregation concentration (CAC) on the molar mass. A model hydrophobic compound (DiI dye) was loaded into the nanocarriers and exhibited slow release into the aqueous phase on a scale of 18 h. Cellular uptake of the loaded nanocarriers and that of free DiI were compared in vitro using glioblastoma (U87) and fibroblast (CRL2429) cells. While the uptake of both DiI/PVP-OD nanocarriers and free DiI was inhibited by dynasore, indicating a dynamin-dependent endocytic pathway as a major mechanism, a decrease in the uptake rate of free DiI was observed in the presence of wortmannin. This suggests that while macropinocytosis plays a role in the uptake of low-molecular components, this pathway might be circumvented by incorporation of DiI into nanocarriers.
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5
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Tan GR, Hsu CYS, Zhang Y. pH-Responsive Hybrid Nanoparticles for Imaging Spatiotemporal pH Changes in Biofilm-Dentin Microenvironments. ACS APPLIED MATERIALS & INTERFACES 2021; 13:46247-46259. [PMID: 34570460 DOI: 10.1021/acsami.1c11162] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Engineering highly sensitive nanomaterials to monitor spatiotemporal pH changes has rather broad applications in studying various biological systems. Intraoral/biofilm-tooth pH is the single parameter that has demonstrated accurate assessment of dental caries risk, reflecting the summative integrated outcome of the complicated interactions between three etiological factors, namely, microorganisms/biofilm, diet/carbohydrates, and tooth/saliva/host. However, there is little to no technology/system capable of accurately probing simultaneously both the micro-pH profiles in dentin tissues and acidogenic oral biofilms and examining the pathophysiologic acid attacks with high spatial/temporal resolution. Therefore, a highly sensitive pH-responsive hybrid nanoparticle (pH-NP) is developed and coupled with an ex vivo tooth-biofilm caries model to simulate and study the key cariogenic determinants/steps. The pH-NP emits two distinct fluorescences with mutually inversely proportional intensities that vary accordingly to the proximity pH and with a ratiometric output sensitivity of 13.4-fold across a broad clinically relevant pH range of 3.0-8.0. Using [H+], in addition to pH, to calculate the "area-under-curve" corroborates the "minimum-pH" in semiquantifying the demineralizing potential in each biofilm-dentin zones/depth. The data mechanistically elucidates a two-pronged cariogenic effect of a popular-acidic-sweet-drink, in inundating the biofilm/tooth-system with H+ ions from both the drink and the metabolic byproducts of the biofilm.
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Affiliation(s)
- Guang-Rong Tan
- Faculty of Dentistry, National University of Singapore, 9 Lower Kent Ridge Road, Singapore 119085, Singapore
| | - Chin-Ying Stephen Hsu
- Faculty of Dentistry, National University of Singapore, 9 Lower Kent Ridge Road, Singapore 119085, Singapore
| | - Yong Zhang
- Department of Biomedical Engineering, Faculty of Engineering, National University of Singapore, Singapore 117583, Singapore
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Chan C, Du S, Dong Y, Cheng X. Computational and Experimental Approaches to Investigate Lipid Nanoparticles as Drug and Gene Delivery Systems. Curr Top Med Chem 2021; 21:92-114. [PMID: 33243123 PMCID: PMC8191596 DOI: 10.2174/1568026620666201126162945] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2020] [Revised: 10/16/2020] [Accepted: 10/22/2020] [Indexed: 02/06/2023]
Abstract
Lipid nanoparticles (LNPs) have been widely applied in drug and gene delivery. More than twenty years ago, DoxilTM was the first LNPs-based drug approved by the US Food and Drug Administration (FDA). Since then, with decades of research and development, more and more LNP-based therapeutics have been used to treat diverse diseases, which often offer the benefits of reduced toxicity and/or enhanced efficacy compared to the active ingredients alone. Here, we provide a review of recent advances in the development of efficient and robust LNPs for drug/gene delivery. We emphasize the importance of rationally combining experimental and computational approaches, especially those providing multiscale structural and functional information of LNPs, to the design of novel and powerful LNP-based delivery systems.
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Affiliation(s)
- Chun Chan
- Division of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, The Ohio State University, Columbus, OH 43210, USA
| | - Shi Du
- Division of Pharmaceutics and Pharmacology, College of Pharmacy, The Ohio State University, Columbus, OH 43210, USA
| | - Yizhou Dong
- Division of Pharmaceutics and Pharmacology, College of Pharmacy, The Ohio State University, Columbus, OH 43210, USA
- Department of Biomedical Engineering; The Center for Clinical and Translational Science; The Comprehensive Cancer Center; Dorothy M. Davis Heart & Lung Research Institute; Department of Radiation Oncology, The Ohio State University, Columbus, OH 43210, USA
| | - Xiaolin Cheng
- Division of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, The Ohio State University, Columbus, OH 43210, USA
- Biophysics Graduate Program, Translational Data Analytics Institute, The Ohio State University, Columbus, OH 43210, USA
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7
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EGFR-targeting antitumor therapy: Neuregulins or antibodies? Eur J Pharm Sci 2020; 158:105678. [PMID: 33340635 DOI: 10.1016/j.ejps.2020.105678] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Revised: 11/18/2020] [Accepted: 12/10/2020] [Indexed: 12/24/2022]
Abstract
Malignancies such as lung, breast and pancreatic carcinomas are associated with increased expression of the epidermal growth factor receptor, EGFR, and its role in the pathogenesis and progression of tumors has made this receptor a prime target in the development of antitumor therapies. In therapies targeting EGFR, the development of resistance owing to mutations and single nucleotide polymorphisms, and the expression of the receptor ligands themselves are very serious issues. In this work, both the ligand neuregulin and a bispecific antibody fragment to EGFR are conjugated separately or together to the same drug-delivery system to find the most promising candidate. Camptothecin is used as a model chemotherapeutic drug and superparamagnetic iron oxide nanoparticles as a delivery system. Results show that the lowest LD50 is achieved by formulations conjugated to both the antibody and the ligand, demonstrating a synergy. Additionally, the ligand location in the nucleus favors the antitumor activity of Camptothecin. The high loading capacity and efficiency convert these systems into a good alternative for administering Camptothecin, a drug whose use is otherwise severely limited by its chemical instability and poor solubility. Our choice of targeting agents allows treating tumors that express ErbB2 (Her2+ tumors) as well as Her2- tumors expressing EGFR.
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8
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Bunker A, Róg T. Mechanistic Understanding From Molecular Dynamics Simulation in Pharmaceutical Research 1: Drug Delivery. Front Mol Biosci 2020; 7:604770. [PMID: 33330633 PMCID: PMC7732618 DOI: 10.3389/fmolb.2020.604770] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Accepted: 11/02/2020] [Indexed: 12/12/2022] Open
Abstract
In this review, we outline the growing role that molecular dynamics simulation is able to play as a design tool in drug delivery. We cover both the pharmaceutical and computational backgrounds, in a pedagogical fashion, as this review is designed to be equally accessible to pharmaceutical researchers interested in what this new computational tool is capable of and experts in molecular modeling who wish to pursue pharmaceutical applications as a context for their research. The field has become too broad for us to concisely describe all work that has been carried out; many comprehensive reviews on subtopics of this area are cited. We discuss the insight molecular dynamics modeling has provided in dissolution and solubility, however, the majority of the discussion is focused on nanomedicine: the development of nanoscale drug delivery vehicles. Here we focus on three areas where molecular dynamics modeling has had a particularly strong impact: (1) behavior in the bloodstream and protective polymer corona, (2) Drug loading and controlled release, and (3) Nanoparticle interaction with both model and biological membranes. We conclude with some thoughts on the role that molecular dynamics simulation can grow to play in the development of new drug delivery systems.
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Affiliation(s)
- Alex Bunker
- Division of Pharmaceutical Biosciences, Drug Research Program, Faculty of Pharmacy, University of Helsinki, Helsinki, Finland
| | - Tomasz Róg
- Department of Physics, University of Helsinki, Helsinki, Finland
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9
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Robinson-Duggon J, Pizarro N, Gunther G, Zúñiga-Núñez D, Edwards AM, Greer A, Fuentealba D. Fatty Acid Conjugates of Toluidine Blue O as Amphiphilic Photosensitizers: Synthesis, Solubility, Photophysics and Photochemical Properties †. Photochem Photobiol 2020; 97:71-79. [PMID: 32619275 DOI: 10.1111/php.13304] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Revised: 06/07/2020] [Accepted: 06/25/2020] [Indexed: 02/06/2023]
Abstract
Toluidine blue O (TBO) is a water-soluble photosensitizer that has been used in photodynamic antimicrobial and anticancer treatments, but suffers from limited solubility in hydrophobic media. In an effort to incrementally increase TBO's hydrophobicity, we describe the synthesis of hexanoic (TBOC6) and myristic (TBOC14) fatty acid derivatives of TBO formed in low to moderate percent yields by condensation with the free amine site. Covalently linking 6 and 14 carbon chains led to modifications of not only TBO's solubility, but also its photophysical and photochemical properties. TBOC6 and TBOC14 derivatives were more soluble in organic solvents and showed hypsochromic shifts in their absorption and emission bands. The solubility in phosphate buffer solution was low for both TBOC6 and TBOC14, but unexpectedly slightly greater in the latter. Both TBOC6 and TBOC14 showed decreased triplet excited-state lifetimes and singlet oxygen quantum yields in acetonitrile, which was attributed to heightened aggregation of these conjugates particularly at high concentrations due to the hydrophobic "tails." While in diluted aqueous buffer solution, indirect measurements showed similar efficiency in singlet oxygen generation for TBOC14 compared to TBO. This work demonstrates a facile synthesis of fatty acid TBO derivatives leading to amphiphilic compounds with a delocalized cationic "head" group and hydrophobic "tails" for potential to accumulate into biological membranes or membrane/aqueous interfaces in PDT applications.
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Affiliation(s)
- José Robinson-Duggon
- Laboratorio de Química Biosupramolecular, Facultad de Química y de Farmacia, Pontificia Universidad Católica de Chile, Macul, Santiago, Chile.,Departamento de Bioquímica, Facultad de Ciencias Naturales, Exactas y Tecnología, Universidad de Panamá, Panamá City, Panamá
| | - Nancy Pizarro
- Departamento de Ciencias Químicas, Facultad de Ciencias Exactas, Universidad Andrés Bello, Santiago, Chile
| | - Germán Gunther
- Facultad de Ciencias Químicas y Farmacéuticas, Departamento de Química Orgánica y Fisicoquímica, Universidad de Chile, Santiago, Chile
| | - Daniel Zúñiga-Núñez
- Laboratorio de Química Biosupramolecular, Facultad de Química y de Farmacia, Pontificia Universidad Católica de Chile, Macul, Santiago, Chile
| | - Ana María Edwards
- Laboratorio de Química Biosupramolecular, Facultad de Química y de Farmacia, Pontificia Universidad Católica de Chile, Macul, Santiago, Chile
| | - Alexander Greer
- Department of Chemistry, Brooklyn College, City University of New York, Brooklyn, NY, USA.,The Graduate Center of the City University of New York, New York, NY, USA
| | - Denis Fuentealba
- Laboratorio de Química Biosupramolecular, Facultad de Química y de Farmacia, Pontificia Universidad Católica de Chile, Macul, Santiago, Chile
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MgO nanoparticles coated with polyethylene glycol as carrier for 2-Methoxyestradiol anticancer drug. PLoS One 2019; 14:e0214900. [PMID: 31415561 PMCID: PMC6695098 DOI: 10.1371/journal.pone.0214900] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Accepted: 06/21/2019] [Indexed: 11/19/2022] Open
Abstract
Novel Magnesium Oxide (MgO) nanoparticles (NPs) modified with the polymer polyethylene glycol (PEG) were synthesized as carrier for the anticancer drug 2-Methoxyestradiol (2ME) to improve its clinical application. The functionalized NPs were characterized by Infrared spectroscopy with Fourier transform to elucidate the vibration modes of this conjugate, indicating the formation of the MgO-PEG-2ME nanocomposite. The studies of absorption and liberation determined that MgO-PEG-2ME NPs incorporated 98.51 % of 2ME while liberation of 2ME was constant during 7 days at pH 2, 5 and 7.35. Finally, the MgO-PEG-2ME NPs decreased the viability of the prostate cancer cell line LNCap suggesting that this nanocomposite is suitable as a drug delivery system for anticancer prostate therapy.
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11
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Simagina AA, Polynski MV, Vinogradov AV, Pidko EA. Towards rational design of metal-organic framework-based drug delivery systems. RUSSIAN CHEMICAL REVIEWS 2018. [DOI: 10.1070/rcr4797] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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12
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Sousa SF, Peres J, Coelho M, Vieira TF. Analyzing PEGylation through Molecular Dynamics Simulations. ChemistrySelect 2018. [DOI: 10.1002/slct.201800855] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Sérgio F. Sousa
- UCIBIO@REQUIMTE; BioSIM; Departamento de Biomedicina; Faculdade de Medicina da Universidade do Porto, Alameda Professor Hernâni Monteiro; 4200-319, Porto Portugal
| | - Joana Peres
- LEPABE; Faculdade de Engenharia; Universidade do Porto, Porto; Portugal
| | - Manuel Coelho
- LEPABE; Faculdade de Engenharia; Universidade do Porto, Porto; Portugal
| | - Tatiana F. Vieira
- LEPABE; Faculdade de Engenharia; Universidade do Porto, Porto; Portugal
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13
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Abdelwahab M, Salahuddin N, Gaber M, Mousa M. Poly(3-hydroxybutyrate)/polyethylene glycol-NiO nanocomposite for NOR delivery: Antibacterial activity and cytotoxic effect against cancer cell lines. Int J Biol Macromol 2018; 114:717-727. [DOI: 10.1016/j.ijbiomac.2018.03.050] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2017] [Revised: 03/07/2018] [Accepted: 03/12/2018] [Indexed: 11/25/2022]
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14
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Herbrink M, Groenland SL, Huitema ADR, Schellens JHM, Beijnen JH, Steeghs N, Nuijen B. Solubility and bioavailability improvement of pazopanib hydrochloride. Int J Pharm 2018; 544:181-190. [PMID: 29680279 DOI: 10.1016/j.ijpharm.2018.04.037] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2017] [Revised: 03/26/2018] [Accepted: 04/18/2018] [Indexed: 01/09/2023]
Abstract
The anti-cancer drug pazopanib hydrochloride (PZH) has a very low aqueous solubility and a variable oral bioavailability. A new pharmaceutical formulation with an improved solubility may enhance the bioavailability and reduce the variability. A broad selection of polymer excipients was tested for their compatibility and solubilizing properties by conventional microscopic, thermal and spectrometric techniques. A wet milling and mixing technique was used to produce homogenous powder mixtures. The dissolution properties of the formulation were tested by a pH-switch dissolution model. The final formulation was tested in vivo in cancer patient following a dose escalation design. Of the tested mixture formulations, the one containing the co-block polymer Soluplus® in a 8:1 ratio with PZH performed best in terms of in vitro dissolution properties. The in vivo results indicated that 300 mg of the developed formulation yields similar exposure and a lower variability (379 μg/mL∗h (36.7% CV)) than previously reported values for the standard PZH formulation (Votrient®) at the approved dose of 800 mg. Furthermore, the expected plasma-Cthrough levels (27.2 μg/mL) exceeds the defined therapeutic efficacy threshold of 20 μg/mL.
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Affiliation(s)
- Maikel Herbrink
- Department of Pharmacy and Pharmacology, The Netherlands Cancer Institute - Antoni van Leeuwenhoek Hospital and MC Slotervaart, Louwesweg 6, 1066 EC Amsterdam, The Netherlands; Division of Pharmacology, The Netherlands Cancer Institute, Plesmanlaan 121, 1066 CX Amsterdam, The Netherlands.
| | - Stefanie L Groenland
- Department of Pharmacy and Pharmacology, The Netherlands Cancer Institute - Antoni van Leeuwenhoek Hospital and MC Slotervaart, Louwesweg 6, 1066 EC Amsterdam, The Netherlands; Division of Pharmacology, The Netherlands Cancer Institute, Plesmanlaan 121, 1066 CX Amsterdam, The Netherlands
| | - Alwin D R Huitema
- Department of Pharmacy and Pharmacology, The Netherlands Cancer Institute - Antoni van Leeuwenhoek Hospital and MC Slotervaart, Louwesweg 6, 1066 EC Amsterdam, The Netherlands; Department of Clinical Pharmacy, University Medical Center, Utrecht University, Heidelberglaan 100, 3584 CX Utrecht, Utrecht, The Netherlands
| | - Jan H M Schellens
- Division of Pharmacology, The Netherlands Cancer Institute, Plesmanlaan 121, 1066 CX Amsterdam, The Netherlands; Department of Pharmaceutical Sciences, Utrecht University, Universiteitsweg 99, 3584 CG Utrecht, The Netherlands; Department of Medical Oncology and Clinical Pharmacology, The Netherlands Cancer Institute - Antoni van Leeuwenhoek Hospital, Plesmanlaan 121, 1066 CX Amsterdam, The Netherlands
| | - Jos H Beijnen
- Department of Pharmacy and Pharmacology, The Netherlands Cancer Institute - Antoni van Leeuwenhoek Hospital and MC Slotervaart, Louwesweg 6, 1066 EC Amsterdam, The Netherlands; Division of Pharmacology, The Netherlands Cancer Institute, Plesmanlaan 121, 1066 CX Amsterdam, The Netherlands; Department of Pharmaceutical Sciences, Utrecht University, Universiteitsweg 99, 3584 CG Utrecht, The Netherlands
| | - Neeltje Steeghs
- Department of Medical Oncology and Clinical Pharmacology, The Netherlands Cancer Institute - Antoni van Leeuwenhoek Hospital, Plesmanlaan 121, 1066 CX Amsterdam, The Netherlands
| | - Bastiaan Nuijen
- Department of Pharmacy and Pharmacology, The Netherlands Cancer Institute - Antoni van Leeuwenhoek Hospital and MC Slotervaart, Louwesweg 6, 1066 EC Amsterdam, The Netherlands
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15
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Monpara J, Kanthou C, Tozer GM, Vavia PR. Rational Design of Cholesterol Derivative for Improved Stability of Paclitaxel Cationic Liposomes. Pharm Res 2018. [PMID: 29520495 DOI: 10.1007/s11095-018-2367-8] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
PURPOSE This work explores synthesis of novel cholesterol derivative for the preparation of cationic liposomes and its interaction with Paclitaxel (PTX) within liposome membrane using molecular dynamic (MD) simulation and in-vitro studies. METHODS Cholesteryl Arginine Ethylester (CAE) was synthesized and characterized. Cationic liposomes were prepared using Soy PC (SPC) at a molar ratio of 77.5:15:7.5 of SPC/CAE/PTX. Conventional liposomes were composed of SPC/cholesterol/PTX (92:5:3 M ratio). The interaction between paclitaxel, ligand and the membrane was studied using 10 ns MD simulation. The interactions were studied using Differential Scanning Calorimetry (DSC) and Small Angle Neutron Scattering analysis. The efficacy of liposomes was evaluated by MTT assay and endothelial cell migration assay on different cell lines. The safety of the ligand was determined using the Comet Assay. RESULTS The cationic liposomes improved loading efficiency and stability compared to conventional liposomes. The increased PTX loading could be attributed to the hydrogen bond between CAE and PTX and deeper penetration of PTX in the bilayer. The DSC study suggested that inclusion of CAE in the DPPC bilayer eliminates Tg. SANS data showed that CAE has more pronounced membrane thickening effect as compared to cholesterol. The cationic liposomes showed slightly improved cytotoxicity in three different cell lines and improved endothelial cell migration inhibition compared to conventional liposomes. Furthermore, the COMET assay showed that CAE alone does not show any genotoxicity. CONCLUSIONS The novel cationic ligand (CAE) retains paclitaxel within the phospholipid bilayer and helps in improved drug loading and physical stability. Graphical Abstract ᅟ.
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Affiliation(s)
- Jasmin Monpara
- Department of Pharmaceutical Sciences and Technology, University under Section 3 of UGC Act - 1956, Elite Status and Center of Excellence - Govt. of Maharashtra, TEQIP Phase II Funded, Institute of Chemical Technology, Mumbai, 400019, India
| | - Chryso Kanthou
- Tumor Microcirculation Group, Department of Oncology & Metabolism School of Medicine, The University of Sheffield, Sheffield, UK
| | - Gillian M Tozer
- Tumor Microcirculation Group, Department of Oncology & Metabolism School of Medicine, The University of Sheffield, Sheffield, UK
| | - Pradeep R Vavia
- Department of Pharmaceutical Sciences and Technology, University under Section 3 of UGC Act - 1956, Elite Status and Center of Excellence - Govt. of Maharashtra, TEQIP Phase II Funded, Institute of Chemical Technology, Mumbai, 400019, India.
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16
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Duo X, Li Q, Wang J, Lv J, Hao X, Feng Y, Ren X, Shi C, Zhang W. Core/Shell Gene Carriers with Different Lengths of PLGA Chains to Transfect Endothelial Cells. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2017; 33:13315-13325. [PMID: 29100464 DOI: 10.1021/acs.langmuir.7b02934] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
In order to improve the transfection efficiency and reduce the cytotoxicity of gene carriers, many strategies have been used to develop novel gene carriers. In this study, five complex micelles (MSP(2 k), MSP(4 k), MSP(6 k), MSP(8 k), and MSP(10 k)) were prepared from methoxy-poly(ethylene glycol)-b-poly(d,l-lactide-co-glycolide) (mPEG-b-PLGA) and sorbitol-poly(d,l-lactide-co-glycolide)-graft-PEI (sorbitol-PLGA-g-PEI, where the designed molecular weights of PLGA chains were 2 kDa, 4 kDa, 6 kDa, 8 kDa, and 10 kDa, respectively) copolymers by a self-assembly method, and the mass ratio of mPEG-b-PLGA to sorbitol-PLGA-g-PEI was 1/3. These complex micelles and their gene complexes had appropriate sizes and zeta potentials, and pEGFP-ZNF580 (pDNA) could be efficiently internalized into EA.hy926 cells by their gene complexes (MSP(2 k)/pDNA, MSP(4 k)/pDNA, MSP(6 k)/pDNA, MSP(8 k)/pDNA, and MSP(10 k)/pDNA). The MTT assay results demonstrated that the gene complexes had low cytotoxicity in vitro. When the hydrophobic PLGA chain increased above 6 kDa, the gene complexes showed higher performance than that prepared from short hydrophobic chains. Moreover, the relative ZNF580 protein expression levels in MSP(6 k)/pDNA, MSP(8 k)/pDNA, and MSP(10 k)/pDNA) groups were 79.6%, 71.2%, and 73%, respectively. These gene complexes could promote the transfection of endothelial cells, while providing important information and insight for the design of new and effective gene carriers to promote the proliferation and migration of endothelial cells.
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Affiliation(s)
- Xinghong Duo
- School of Chemical Engineering and Technology, Tianjin University , Yaguan Road 135, Tianjin 300350, China
- School of Chemistry and Chemical Engineering, Qinghai University for Nationalities , Bayi middle Road 3, Xining, Qinghai 810007, China
- Collaborative Innovation Center of Chemical Science and Chemical Engineering (Tianjin) , Weijin Road 92, Tianjin 300072, China
| | - Qian Li
- School of Chemical Engineering and Technology, Tianjin University , Yaguan Road 135, Tianjin 300350, China
- Collaborative Innovation Center of Chemical Science and Chemical Engineering (Tianjin) , Weijin Road 92, Tianjin 300072, China
| | - Jun Wang
- School of Chemical Engineering and Technology, Tianjin University , Yaguan Road 135, Tianjin 300350, China
- Collaborative Innovation Center of Chemical Science and Chemical Engineering (Tianjin) , Weijin Road 92, Tianjin 300072, China
| | - Juan Lv
- School of Chemical Engineering and Technology, Tianjin University , Yaguan Road 135, Tianjin 300350, China
- Collaborative Innovation Center of Chemical Science and Chemical Engineering (Tianjin) , Weijin Road 92, Tianjin 300072, China
| | - Xuefang Hao
- School of Chemical Engineering and Technology, Tianjin University , Yaguan Road 135, Tianjin 300350, China
- Collaborative Innovation Center of Chemical Science and Chemical Engineering (Tianjin) , Weijin Road 92, Tianjin 300072, China
| | - Yakai Feng
- School of Chemical Engineering and Technology, Tianjin University , Yaguan Road 135, Tianjin 300350, China
- Collaborative Innovation Center of Chemical Science and Chemical Engineering (Tianjin) , Weijin Road 92, Tianjin 300072, China
- Joint Laboratory for Biomaterials and Regenerative Medicine, Tianjin University-Helmholtz-Zentrum Geesthacht , Yaguan Road 135, Tianjin 300350, China
- Key Laboratory of Systems Bioengineering of Ministry of Education, Tianjin University , Yaguan Road 135, Tianjin 300350, China
| | - Xiangkui Ren
- School of Chemical Engineering and Technology, Tianjin University , Yaguan Road 135, Tianjin 300350, China
| | - Changcan Shi
- Wenzhou Institute of Biomaterials and Engineering, CNITECH, CAS , Wenzhou, Zhejiang 325011, China
- Institute of Biomaterials and Engineering, Wenzhou Medical University , Wenzhou, Zhejiang 325011, China
| | - Wencheng Zhang
- Department of Physiology and Pathophysiology, Logistics University of Chinese People's Armed Police Force , Tianjin 300162, China
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17
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Preem L, Mahmoudzadeh M, Putrinš M, Meos A, Laidmäe I, Romann T, Aruväli J, Härmas R, Koivuniemi A, Bunker A, Tenson T, Kogermann K. Interactions between Chloramphenicol, Carrier Polymers, and Bacteria–Implications for Designing Electrospun Drug Delivery Systems Countering Wound Infection. Mol Pharm 2017; 14:4417-4430. [DOI: 10.1021/acs.molpharmaceut.7b00524] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- Liis Preem
- Institute
of Pharmacy, University of Tartu, Nooruse 1, 50411 Tartu, Estonia
| | - Mohammad Mahmoudzadeh
- Drug
research program, Division of Pharmaceutical Biosciences, Faculty
of Pharmacy, University of Helsinki, Viikinkaari 5E,
P.O. Box 56, FI-00014 Helsinki, Finland
| | - Marta Putrinš
- Institute
of Technology, University of Tartu, Nooruse 1, 50411 Tartu, Estonia
| | - Andres Meos
- Institute
of Pharmacy, University of Tartu, Nooruse 1, 50411 Tartu, Estonia
| | - Ivo Laidmäe
- Institute
of Pharmacy, University of Tartu, Nooruse 1, 50411 Tartu, Estonia
| | - Tavo Romann
- Institute
of Chemistry, University of Tartu, Ravila 14a, 50411 Tartu, Estonia
| | - Jaan Aruväli
- Institute
of Ecology and Earth Sciences, University of Tartu, Ravila 14a, 50411 Tartu, Estonia
| | - Riinu Härmas
- Institute
of Chemistry, University of Tartu, Ravila 14a, 50411 Tartu, Estonia
| | - Artturi Koivuniemi
- Drug
research program, Division of Pharmaceutical Biosciences, Faculty
of Pharmacy, University of Helsinki, Viikinkaari 5E,
P.O. Box 56, FI-00014 Helsinki, Finland
| | - Alex Bunker
- Drug
research program, Division of Pharmaceutical Biosciences, Faculty
of Pharmacy, University of Helsinki, Viikinkaari 5E,
P.O. Box 56, FI-00014 Helsinki, Finland
| | - Tanel Tenson
- Institute
of Technology, University of Tartu, Nooruse 1, 50411 Tartu, Estonia
| | - Karin Kogermann
- Institute
of Pharmacy, University of Tartu, Nooruse 1, 50411 Tartu, Estonia
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18
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Herbrink M, Schellens JHM, Beijnen JH, Nuijen B. Improving the solubility of nilotinib through novel spray-dried solid dispersions. Int J Pharm 2017; 529:294-302. [PMID: 28689964 DOI: 10.1016/j.ijpharm.2017.07.010] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2017] [Revised: 07/03/2017] [Accepted: 07/04/2017] [Indexed: 02/06/2023]
Abstract
The tyrosine kinase inhibitor nilotinib has a very low aqueous solubility and a low and variable oral bioavailability. A pharmaceutical formulation with an improved solubility may enhance the bioavailability and reduce the variability thereof and of the pharmacokinetics. The aim of this study was to enhance the solubility of nilotinib by developing a spray dried solid dispersion. A broad selection of polymer excipients were tested for solubilizing properties. The spray drying technique was used to produce solid dispersions of nilotinib hydrochloride (NH) in matrices of the best performing polymers. Both the dissolution and physicochemical characteristics of the formulations were studied using a pH-switch dissolution model and conventional microscopic, thermal and spectrometric techniques. Of the tested spray dried solid dispersions, the ones containing the co-block polymer Soluplus® performed best in terms of in vitro dissolution properties. Further testing led to an optimized weight ratio of 1:7 (NH:Soluplus®) that improved the solubility up to 630-fold compared to crystalline NH (1.5μg/mL) in simulated intestinal fluid. This effect can be attributed to the amorphization of NH and the solubilization of the drug due to micelle formation. A spray dried solid dispersion formulation of NH with Soluplus® in a ratio of 1:7 was developed that showed a significant increase in solubility.
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Affiliation(s)
- Maikel Herbrink
- Department of Pharmacy and Pharmacology, The Netherlands Cancer Institute - Antoni van Leeuwenhoek Hospital and MC Slotervaart, Louwesweg 6, 1066 EC, Amsterdam, The Netherlands.
| | - Jan H M Schellens
- Department of Pharmacy and Pharmacology, The Netherlands Cancer Institute - Antoni van Leeuwenhoek Hospital and MC Slotervaart, Louwesweg 6, 1066 EC, Amsterdam, The Netherlands; Department of Pharmaceutical Sciences, Utrecht University, Universiteitsweg 99, 3584 CG Utrecht, The Netherlands
| | - Jos H Beijnen
- Department of Pharmacy and Pharmacology, The Netherlands Cancer Institute - Antoni van Leeuwenhoek Hospital and MC Slotervaart, Louwesweg 6, 1066 EC, Amsterdam, The Netherlands; Department of Pharmaceutical Sciences, Utrecht University, Universiteitsweg 99, 3584 CG Utrecht, The Netherlands
| | - Bastiaan Nuijen
- Department of Pharmacy and Pharmacology, The Netherlands Cancer Institute - Antoni van Leeuwenhoek Hospital and MC Slotervaart, Louwesweg 6, 1066 EC, Amsterdam, The Netherlands
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19
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Dzieciuch-Rojek M, Poojari C, Bednar J, Bunker A, Kozik B, Nowakowska M, Vattulainen I, Wydro P, Kepczynski M, Róg T. Effects of Membrane PEGylation on Entry and Location of Antifungal Drug Itraconazole and Their Pharmacological Implications. Mol Pharm 2017; 14:1057-1070. [PMID: 28234487 DOI: 10.1021/acs.molpharmaceut.6b00969] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Itraconazole (ITZ) is an antifungal agent used clinically to treat mycotic infections. However, its therapeutic effects are limited by low solubility in aqueous media. Liposome-based delivery systems (LDS) have been proposed as a delivery mechanism for ITZ to alleviate this problem. Furthermore, PEGylation, the inclusion in the formulation of a protective "stealth sheath" of poly(ethylene glycol) around carrier particles, is widely used to increase circulation time in the bloodstream and hence efficacy. Together, these themes highlight the importance of mechanistic and structural understanding of ITZ incorporation into liposomes both with and without PEGylation because it can provide a potential foundation for the rational design of LDS-based systems for delivery of ITZ, using alternate protective polymers or formulations. Here we have combined atomistic simulations, cryo-TEM, Langmuir film balance, and fluorescence quenching experiments to explore how ITZ interacts with both pristine and PEGylated liposomes. We found that the drug can be incorporated into conventional and PEGylated liposomes for drug concentrations up to 15 mol % without phase separation. We observed that, in addition to its protective properties, PEGylation significantly increases the stability of liposomes that host ITZ. In a 1-palmitoyl-2-oleoyl-sn-glycero-3-phosphocholine (POPC) bilayer without PEGylation, ITZ was found to reside inside the lipid bilayer between the glycerol and the double-bond regions of POPC, adopting a largely parallel orientation along the membrane surface. In a PEGylated liposome, ITZ partitions mainly to the PEG layer. The results provide a solid basis for further development of liposome-based delivery systems.
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Affiliation(s)
| | - Chetan Poojari
- Department of Physics, Tampere University of Technology , P.O. Box 692, FI-33101 Tampere, Finland
| | - Jan Bednar
- Université de Grenoble Alpes/CNRS, Institut Albert Bonniot , UMR 5309, 38042 CEDEX 9 Grenoble, France.,First Faculty of Medicine, Laboratory of Biology and Pathology of the Eye, Institute of Inherited Metabolic Disorders, Charles University in Prague , KeKarlovu 2, 12800 Prague 2, Czech Republic
| | - Alex Bunker
- Centre for Drug Research, Division of Pharmaceutical Biosciences, Faculty of Pharmacy, University of Helsinki , FI-00014 Helsinki, Finland
| | - Bartłomiej Kozik
- Faculty of Chemistry, Jagiellonian University , Ingardena 3, 30-060 Kraków, Poland
| | - Maria Nowakowska
- Faculty of Chemistry, Jagiellonian University , Ingardena 3, 30-060 Kraków, Poland
| | - Ilpo Vattulainen
- Department of Physics, Tampere University of Technology , P.O. Box 692, FI-33101 Tampere, Finland.,Department of Physics, University of Helsinki , P.O. Box 64, FI-00014 Helsinki, Finland.,MEMPHYS-Center for Biomembrane Physics, University of Southern Denmark , Odense, Denmark
| | - Paweł Wydro
- Faculty of Chemistry, Jagiellonian University , Ingardena 3, 30-060 Kraków, Poland
| | - Mariusz Kepczynski
- Faculty of Chemistry, Jagiellonian University , Ingardena 3, 30-060 Kraków, Poland
| | - Tomasz Róg
- Department of Physics, Tampere University of Technology , P.O. Box 692, FI-33101 Tampere, Finland.,Department of Physics, University of Helsinki , P.O. Box 64, FI-00014 Helsinki, Finland
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20
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Wilkosz N, Rissanen S, Cyza M, Szybka R, Nowakowska M, Bunker A, Róg T, Kepczynski M. Effect of piroxicam on lipid membranes: Drug encapsulation and gastric toxicity aspects. Eur J Pharm Sci 2017; 100:116-125. [DOI: 10.1016/j.ejps.2017.01.007] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2016] [Revised: 01/09/2017] [Accepted: 01/09/2017] [Indexed: 01/11/2023]
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21
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Oroskar P, Jameson CJ, Murad S. Molecular dynamics simulations reveal how characteristics of surface and permeant affect permeation events at the surface of soft matter. MOLECULAR SIMULATION 2017. [DOI: 10.1080/08927022.2016.1268259] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Priyanka Oroskar
- Department of Chemical Engineering, University of Illinois at Chicago, Chicago, IL, USA
| | - Cynthia J. Jameson
- Department of Chemistry, University of Illinois at Chicago, Chicago, IL, USA
| | - Sohail Murad
- Department of Chemical Engineering, Illinois Institute of Technology, Chicago, IL, USA
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22
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Ghogare AA, Greer A. Synthesis of a poly(ethylene glycol) galloyl sensitizer tip for an 'all-in-one' photodynamic device. JOURNAL OF BIOPHOTONICS 2016; 9:1326-1336. [PMID: 27041367 DOI: 10.1002/jbio.201600013] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/14/2016] [Revised: 02/23/2016] [Accepted: 03/03/2016] [Indexed: 06/05/2023]
Abstract
This paper describes the synthesis of a specialized silica tip for an optical fiber device capable of delivering all components necessary for photodynamic therapy. Oxygen, light and a cleavable tripolyethylene glycol (PEG)-galloyl pheophorbide sensitizer are simultaneously delivered by the silica tip, where the tip was synthesized in six steps. A comparison of synthetic steps to reach PEGylated sensitizers bound to fluorinated silica and a previously reported Teflon/polyvinyl alcohol (PVA) nanocomposite ( Ghosh, G. et al. J. Phys. Chem. B 2015, 119, 4155- 4164) was made. The hydrolytic stability of the attached PEGs and the extent to which the PEG groups enhance solubility will also be discussed. The new triPEG-galloyl sensitizer has the potential for use in intraoperative pointsource photodynamic therapy which aims for precision treatment of residual disease. Schematic of the synthesis of a photoactive silica surface. It is composed of fluorinated silica connected to a photo-releasable sensitizer with short-chain PEGs.
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Affiliation(s)
- Ashwini A Ghogare
- Department of Chemistry, Brooklyn College, 2900 Bedford Avenue, Brooklyn, New York, 11210, United States
- Ph.D. Program in Chemistry, The Graduate Center of the City University of New York, 365 Fifth Avenue, New York, New York, 10016, United States
| | - Alexander Greer
- Department of Chemistry, Brooklyn College, 2900 Bedford Avenue, Brooklyn, New York, 11210, United States
- Ph.D. Program in Chemistry, The Graduate Center of the City University of New York, 365 Fifth Avenue, New York, New York, 10016, United States
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23
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Bunker A, Magarkar A, Viitala T. Rational design of liposomal drug delivery systems, a review: Combined experimental and computational studies of lipid membranes, liposomes and their PEGylation. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2016; 1858:2334-2352. [DOI: 10.1016/j.bbamem.2016.02.025] [Citation(s) in RCA: 103] [Impact Index Per Article: 12.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2015] [Revised: 02/09/2016] [Accepted: 02/10/2016] [Indexed: 01/22/2023]
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24
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Oroskar PA, Jameson CJ, Murad S. Simulated Permeation and Characterization of PEGylated Gold Nanoparticles in a Lipid Bilayer System. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2016; 32:7541-7555. [PMID: 27399834 DOI: 10.1021/acs.langmuir.6b01740] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
PEGylated gold nanoparticles are considered suitable nanocarriers for use in biomedical applications and targeted drug delivery systems. In our previous investigation with the alkanethiol-functionalized gold nanoparticle, we found that permeation across a protein-free phospholipid membrane resulted in damaging effects of lipid displacement and water and ion leakage. In the present study, we carry out a series of coarse-grained molecular simulations to explore permeation of lipid bilayer systems by a PEGylated gold nanoparticle, especially at the bulk-liquid-lipid interface as well as the interface between the two lipid leaflets. Initially, we examine molecular-level details of a PEGylated gold nanoparticle (constructed from cycled annealing) in water and find a distribution of ligand configurations (from mushroom to brush states) present in nanoparticles with medium to high surface coverage. We also find that the characteristic properties of the PEGylated gold nanoparticle do not change when it is placed in a salt solution. In our permeation studies, we investigate events of water and ion penetration as well as lipid translocation while varying the ligand length, nanoparticle surface coverage, and ion concentration gradient of our system. Results from our studies show the following: (1) The number of water molecules in the interior of the membrane during ligand-coated nanoparticle permeation increases with PEGn-SH surface coverage, ligand length, and permeation velocity but is not sensitive to the ion concentration gradient. (2) Lipid molecules do not leave the membrane; instead they complete trans-bilayer lipid flip-flop with longer ligands and higher surface coverages. (3) The lack of formation of stable water pores prevents ion translocation. (4) The PEGylated nanoparticle causes less damage to the membrane overall due to favorable interactions with the lipid headgroups which may explain why experimentalists observe endocytosis of PEGylated nanocarriers in vivo.
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Affiliation(s)
- Priyanka A Oroskar
- Department of Chemical Engineering, University of Illinois at Chicago , 810 South Clinton Street, Chicago, Illinois 60607, United States
| | - Cynthia J Jameson
- Department of Chemical Engineering, University of Illinois at Chicago , 810 South Clinton Street, Chicago, Illinois 60607, United States
- Department of Chemistry, University of Illinois at Chicago , 845 West Taylor Street, Chicago, Illinois 60607, United States
| | - Sohail Murad
- Department of Chemical Engineering, University of Illinois at Chicago , 810 South Clinton Street, Chicago, Illinois 60607, United States
- Department of Chemical and Biological Engineering, Illinois Institute of Technology , 3300 South Federal Street, Chicago, Illinois 60616, United States
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25
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Meng Z, Lv Q, Lu J, Yao H, Lv X, Jiang F, Lu A, Zhang G. Prodrug Strategies for Paclitaxel. Int J Mol Sci 2016; 17:E796. [PMID: 27223283 PMCID: PMC4881612 DOI: 10.3390/ijms17050796] [Citation(s) in RCA: 57] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2016] [Revised: 05/04/2016] [Accepted: 05/11/2016] [Indexed: 01/08/2023] Open
Abstract
Paclitaxel is an anti-tumor agent with remarkable anti-tumor activity and wide clinical uses. However, it is also faced with various challenges especially for its poor water solubility and low selectivity for the target. To overcome these disadvantages of paclitaxel, approaches using small molecule modifications and macromolecule modifications have been developed by many research groups from all over the world. In this review, we discuss the different strategies especially prodrug strategies that are currently used to make paclitaxel more effective.
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Affiliation(s)
- Ziyuan Meng
- Institution for Advancing Translational Medicine in Bone & Joint Diseases, School of Chinese Medicine, Hong Kong Baptist University, Hong Kong 999077, China.
- Research Group of Precision Medicine and Innovative Drug, HKBU (Hong Kong Baptist University) (Haimen) Institute of Science and Technology, Haimen 226100, China.
| | - Quanxia Lv
- Institution for Advancing Translational Medicine in Bone & Joint Diseases, School of Chinese Medicine, Hong Kong Baptist University, Hong Kong 999077, China.
- Research Group of Precision Medicine and Innovative Drug, HKBU (Hong Kong Baptist University) (Haimen) Institute of Science and Technology, Haimen 226100, China.
| | - Jun Lu
- Institution for Advancing Translational Medicine in Bone & Joint Diseases, School of Chinese Medicine, Hong Kong Baptist University, Hong Kong 999077, China.
| | - Houzong Yao
- Institution for Advancing Translational Medicine in Bone & Joint Diseases, School of Chinese Medicine, Hong Kong Baptist University, Hong Kong 999077, China.
| | - Xiaoqing Lv
- Research Group of Precision Medicine and Innovative Drug, HKBU (Hong Kong Baptist University) (Haimen) Institute of Science and Technology, Haimen 226100, China.
| | - Feng Jiang
- Institution for Advancing Translational Medicine in Bone & Joint Diseases, School of Chinese Medicine, Hong Kong Baptist University, Hong Kong 999077, China.
- Research Group of Precision Medicine and Innovative Drug, HKBU (Hong Kong Baptist University) (Haimen) Institute of Science and Technology, Haimen 226100, China.
- The State Key Laboratory Base of Novel Functional Materials and Preparation Science, Faculty of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, China.
| | - Aiping Lu
- Institution for Advancing Translational Medicine in Bone & Joint Diseases, School of Chinese Medicine, Hong Kong Baptist University, Hong Kong 999077, China.
- Research Group of Precision Medicine and Innovative Drug, HKBU (Hong Kong Baptist University) (Haimen) Institute of Science and Technology, Haimen 226100, China.
| | - Ge Zhang
- Institution for Advancing Translational Medicine in Bone & Joint Diseases, School of Chinese Medicine, Hong Kong Baptist University, Hong Kong 999077, China.
- Research Group of Precision Medicine and Innovative Drug, HKBU (Hong Kong Baptist University) (Haimen) Institute of Science and Technology, Haimen 226100, China.
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26
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Lajunen T, Kontturi LS, Viitala L, Manna M, Cramariuc O, Róg T, Bunker A, Laaksonen T, Viitala T, Murtomäki L, Urtti A. Indocyanine Green-Loaded Liposomes for Light-Triggered Drug Release. Mol Pharm 2016; 13:2095-107. [DOI: 10.1021/acs.molpharmaceut.6b00207] [Citation(s) in RCA: 87] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Tatu Lajunen
- Centre
for Drug Research, Division of Pharmaceutical Biosciences, University of Helsinki, P.O. Box 56, FI-00014 Helsinki, Finland
| | - Leena-Stiina Kontturi
- Centre
for Drug Research, Division of Pharmaceutical Biosciences, University of Helsinki, P.O. Box 56, FI-00014 Helsinki, Finland
- Department
of Pharmaceutics, Utrecht Institute of Pharmaceutical Sciences (UIPS), Utrecht University, Universiteitsweg 99, 3584 CG Utrecht, The Netherlands
| | - Lauri Viitala
- Department
of Chemistry, Aalto University, P.O. Box 16100, FI-00076 Aalto, Finland
| | - Moutusi Manna
- Department
of Physics, Tampere University of Technology, P.O. Box 692, FI-33101 Tampere, Finland
| | - Oana Cramariuc
- Department
of Physics, Tampere University of Technology, P.O. Box 692, FI-33101 Tampere, Finland
| | - Tomasz Róg
- Department
of Physics, Tampere University of Technology, P.O. Box 692, FI-33101 Tampere, Finland
- Department
of Physics, University of Helsinki, P.O. Box 64, FI-00014 Helsinki, Finland
| | - Alex Bunker
- Centre
for Drug Research, Division of Pharmaceutical Biosciences, University of Helsinki, P.O. Box 56, FI-00014 Helsinki, Finland
| | - Timo Laaksonen
- Centre
for Drug Research, Division of Pharmaceutical Biosciences, University of Helsinki, P.O. Box 56, FI-00014 Helsinki, Finland
- Department
of Chemistry and Bioengineering, Tampere University of Technology, P.O. Box 541, FI-33101 Tampere, Finland
| | - Tapani Viitala
- Centre
for Drug Research, Division of Pharmaceutical Biosciences, University of Helsinki, P.O. Box 56, FI-00014 Helsinki, Finland
| | - Lasse Murtomäki
- Department
of Chemistry, Aalto University, P.O. Box 16100, FI-00076 Aalto, Finland
| | - Arto Urtti
- Centre
for Drug Research, Division of Pharmaceutical Biosciences, University of Helsinki, P.O. Box 56, FI-00014 Helsinki, Finland
- School
of
Pharmacy, University of Eastern Finland, P.O. Box 1627, FI-70211 Kuopio, Finland
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27
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Ramezanpour M, Leung SSW, Delgado-Magnero KH, Bashe BYM, Thewalt J, Tieleman DP. Computational and experimental approaches for investigating nanoparticle-based drug delivery systems. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2016; 1858:1688-709. [PMID: 26930298 DOI: 10.1016/j.bbamem.2016.02.028] [Citation(s) in RCA: 105] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2016] [Revised: 02/20/2016] [Accepted: 02/23/2016] [Indexed: 12/21/2022]
Abstract
Most therapeutic agents suffer from poor solubility, rapid clearance from the blood stream, a lack of targeting, and often poor translocation ability across cell membranes. Drug/gene delivery systems (DDSs) are capable of overcoming some of these barriers to enhance delivery of drugs to their right place of action, e.g. inside cancer cells. In this review, we focus on nanoparticles as DDSs. Complementary experimental and computational studies have enhanced our understanding of the mechanism of action of nanocarriers and their underlying interactions with drugs, biomembranes and other biological molecules. We review key biophysical aspects of DDSs and discuss how computer modeling can assist in rational design of DDSs with improved and optimized properties. We summarize commonly used experimental techniques for the study of DDSs. Then we review computational studies for several major categories of nanocarriers, including dendrimers and dendrons, polymer-, peptide-, nucleic acid-, lipid-, and carbon-based DDSs, and gold nanoparticles. This article is part of a Special Issue entitled: Membrane Proteins edited by J.C. Gumbart and Sergei Noskov.
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Affiliation(s)
- M Ramezanpour
- Centre for Molecular Simulation, Department of Biological Sciences, University of Calgary, Calgary, AB T2N 1N4, Canada
| | - S S W Leung
- Department of Physics, Simon Fraser University, Burnaby, BC V5A 1S6, Canada
| | - K H Delgado-Magnero
- Centre for Molecular Simulation, Department of Biological Sciences, University of Calgary, Calgary, AB T2N 1N4, Canada
| | - B Y M Bashe
- Department of Molecular Biology and Biochemistry, Simon Fraser University, Burnaby, BC V5A 1S6, Canada
| | - J Thewalt
- Department of Physics, Simon Fraser University, Burnaby, BC V5A 1S6, Canada; Department of Molecular Biology and Biochemistry, Simon Fraser University, Burnaby, BC V5A 1S6, Canada
| | - D P Tieleman
- Centre for Molecular Simulation, Department of Biological Sciences, University of Calgary, Calgary, AB T2N 1N4, Canada
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28
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Fontenot KR, Ongarora BG, LeBlanc LE, Zhou Z, Jois SD, Vicente MGH. Targeting of the epidermal growth factor receptor with mesoporphyrin IX-peptide conjugates. J PORPHYR PHTHALOCYA 2016; 20:352-366. [PMID: 27738394 PMCID: PMC5058426 DOI: 10.1142/s1088424616500115] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The synthesis and in vitro evaluation of four mesoporphyrin IX-peptide conjugates designed to target EGFR, over-expressed in colorectal and other cancers, are reported. Two peptides with known affinity for EGFR, LARLLT (1) and GYHWYGYTPQNVI (2), were conjugated to mesoporphyrin IX (MPIX, 3) via one or both the propionic side chains, directly (4, 5) or with a triethylene glycol spacer (7, 8). The conjugates were characterized using NMR, MS, CD, SPR, UV-vis and fluorescence spectroscopies. Energy minimization and molecular dynamics suggest different conformations for the conjugates. SPR studies show that conjugate 4, bearing two LARLLT with no PEG spacers, has the greatest affinity for binding to EGFR, followed by conjugate 7 with two PEG and two LARLLT sequences. Molecular modeling and docking studies suggest that both conjugates 4 and 7 can bind to monomer and dimer EGFR in open and closed conformations. The cytotoxicity and cellular targeting ability of the conjugates were investigated in human HEp2 cells over-expressing EGFR. All conjugates showed low dark- and photo-toxicities. The cellular uptake was highest for conjugates 4 and 8 and lowest for 7 bearing two LARLLT linked via PEG groups, likely due to decreased hydrophobicity. Among the conjugates investigated 4 is the most efficient EGFR-targeting agent, and therefore the most promising for the detection of cancers that over-express EGFR.
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Affiliation(s)
- Krystal R. Fontenot
- Department of Chemistry, Louisiana State University, Baton Rouge, LA 70803, USA
| | - Benson G. Ongarora
- Department of Chemistry, Louisiana State University, Baton Rouge, LA 70803, USA
| | - Logan E. LeBlanc
- Department of Chemistry, Louisiana State University, Baton Rouge, LA 70803, USA
| | - Zehua Zhou
- Department of Chemistry, Louisiana State University, Baton Rouge, LA 70803, USA
| | - Seetharama D. Jois
- University of Louisiana at Monroe, School of Pharmacy, Monroe, LA 71201, USA
| | - M. Graça H. Vicente
- Department of Chemistry, Louisiana State University, Baton Rouge, LA 70803, USA
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29
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Zhang L, Kuang Y, Liu J, Liu Z, Huang S, Zhuo R. Long circulating anionic liposomes for hepatic targeted delivery of cisplatin. RSC Adv 2016. [DOI: 10.1039/c6ra08566k] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Anionic liposomes, composed of acetyl glycyrrhetinic acid-poly(ethylene glycol)-stearate, 5-cholestene-3-beta-ol-3-hemisuccinate and phosphatidylcholine, were developed for hepatic targeted delivery of cisplatin.
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Affiliation(s)
- Liujie Zhang
- Key Laboratory of Biomedical Polymers
- Ministry of Education
- College of Chemistry and Molecular Sciences
- Wuhan University
- Wuhan 430072
| | - Ying Kuang
- Key Laboratory of Biomedical Polymers
- Ministry of Education
- College of Chemistry and Molecular Sciences
- Wuhan University
- Wuhan 430072
| | - Jia Liu
- Key Laboratory of Biomedical Polymers
- Ministry of Education
- College of Chemistry and Molecular Sciences
- Wuhan University
- Wuhan 430072
| | - Zhilan Liu
- Key Laboratory of Biomedical Polymers
- Ministry of Education
- College of Chemistry and Molecular Sciences
- Wuhan University
- Wuhan 430072
| | - Shiwen Huang
- Key Laboratory of Biomedical Polymers
- Ministry of Education
- College of Chemistry and Molecular Sciences
- Wuhan University
- Wuhan 430072
| | - Renxi Zhuo
- Key Laboratory of Biomedical Polymers
- Ministry of Education
- College of Chemistry and Molecular Sciences
- Wuhan University
- Wuhan 430072
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30
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Jenkins SV, Srivatsan A, Reynolds KY, Gao F, Zhang Y, Heyes CD, Pandey RK, Chen J. Understanding the interactions between porphyrin-containing photosensitizers and polymer-coated nanoparticles in model biological environments. J Colloid Interface Sci 2016; 461:225-231. [PMID: 26402781 PMCID: PMC4980129 DOI: 10.1016/j.jcis.2015.09.037] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2015] [Revised: 09/14/2015] [Accepted: 09/14/2015] [Indexed: 01/22/2023]
Abstract
Non-covalent incorporation of hydrophobic drugs into polymeric systems is a commonly-used strategy for drug delivery because non-covalent interactions minimize modification of the drug molecules whose efficacy is retained upon release. The behaviors of the drug-polymer delivery system in the biological environments it encounters will affect the efficacy of treatment. In this report, we have investigated the interaction between a hydrophobic drug and its encapsulating polymer in model biological environments using a photosensitizer encapsulated in a polymer-coated nanoparticle system. The photosensitizer, 3-(1'-hexyloxyethyl)-3-devinylpyropheophorbide-a (HPPH), was non-covalently incorporated to the poly(ethylene glycol) (PEG) layer coated on Au nanocages (AuNCs) to yield AuNC-HPPH complexes. The non-covalent binding was characterized by Scatchard analysis, fluorescence lifetime, and Raman experiments. The dissociation constant between PEG and HPPH was found to be ∼35 μM with a maximum loading of ∼2.5×10(5) HPPHs/AuNC. The release was studied in serum-mimetic environment and in vesicles that model human cell membranes. The rate of protein-mediated drug release decreased when using a negatively-charged or cross-linked terminus of the surface-modified PEG. Furthermore, the photothermal effect of AuNCs can initiate burst release, and thus allow control of the release kinetics, demonstrating on-demand drug release. This study provides insights regarding the actions and release kinetics of non-covalent drug delivery systems in biological environments.
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Affiliation(s)
- Samir V Jenkins
- Department of Chemistry and Biochemistry, University of Arkansas, Fayetteville, AR 72701, United States
| | - Avinash Srivatsan
- Photodynamic Therapy Center, Roswell Park Cancer Institute, Buffalo, NY 14263, United States
| | - Kimberly Y Reynolds
- Department of Chemistry and Biochemistry, University of Arkansas, Fayetteville, AR 72701, United States
| | - Feng Gao
- Department of Chemistry and Biochemistry, University of Arkansas, Fayetteville, AR 72701, United States
| | - Yongbin Zhang
- NCTR/ORA Nanotechnology Core Facility, National Center for Toxicological Research, U.S. Food and Drug Administration, Jefferson, AR 72079, United States
| | - Colin D Heyes
- Department of Chemistry and Biochemistry, University of Arkansas, Fayetteville, AR 72701, United States
| | - Ravindra K Pandey
- Photodynamic Therapy Center, Roswell Park Cancer Institute, Buffalo, NY 14263, United States
| | - Jingyi Chen
- Department of Chemistry and Biochemistry, University of Arkansas, Fayetteville, AR 72701, United States.
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31
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Terracciano M, Shahbazi MA, Correia A, Rea I, Lamberti A, De Stefano L, Santos HA. Surface bioengineering of diatomite based nanovectors for efficient intracellular uptake and drug delivery. NANOSCALE 2015; 7:20063-20074. [PMID: 26568517 DOI: 10.1039/c5nr05173h] [Citation(s) in RCA: 56] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Diatomite is a natural porous silica material of sedimentary origin. Due to its peculiar properties, it can be considered as a valid surrogate of synthetic porous silica for nano-based drug delivery. In this work, we exploit the potential of diatomite nanoparticles (DNPs) for drug delivery with the aim of developing a successful dual-biofunctionalization method by polyethylene glycol (PEG) coverage and cell-penetrating peptide (CPP) bioconjugation, to improve the physicochemical and biological properties of the particles, to enhance the intracellular uptake in cancer cells, and to increase the biocompatibility of 3-aminopropyltriethoxysilane (APT) modified-DNPs. DNPs-APT-PEG-CPP showed hemocompatibility for up to 200 μg mL(-1) after 48 h of incubation with erythrocytes, with a hemolysis value of only 1.3%. The cytotoxicity of the modified-DNPs with a concentration up to 200 μg mL(-1) and incubation with MCF-7 and MDA-MB-231 breast cancer cells for 24 h, demonstrated that PEGylation and CPP-bioconjugation can strongly reduce the cytotoxicity of DNPs-APT. The cellular uptake of the modified-DNPs was also evaluated using the above mentioned cancer cell lines, showing that the CPP-bioconjugation can considerably increase the DNP cellular uptake. Moreover, the dual surface modification of DNPs improved both the loading of a poorly water-soluble anticancer drug, sorafenib, with a loading degree up to 22 wt%, and also enhanced the drug release profiles in aqueous solutions. Overall, this work demonstrates that the biofunctionalization of DNPs is a promising platform for drug delivery applications in cancer therapy as a result of its enhanced stability, biocompatibility, cellular uptake, and drug release profiles.
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Affiliation(s)
- Monica Terracciano
- Institute for Microelectronics and Microsystems, National Research Council, Naples, 80131, Italy.
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32
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Dzieciuch M, Rissanen S, Szydłowska N, Bunker A, Kumorek M, Jamróz D, Vattulainen I, Nowakowska M, Róg T, Kepczynski M. PEGylated Liposomes as Carriers of Hydrophobic Porphyrins. J Phys Chem B 2015; 119:6646-57. [DOI: 10.1021/acs.jpcb.5b01351] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Monika Dzieciuch
- Faculty
of Chemistry, Jagiellonian University, Krakow 31-007, Poland
| | - Sami Rissanen
- Department
of Physics, Tampere University of Technology, Tampere 33720, Finland
| | | | - Alex Bunker
- Centre
for Drug Research, Faculty of Pharmacy, University of Helsinki, Helsinki 00100, Finland
| | - Marta Kumorek
- Faculty
of Chemistry, Jagiellonian University, Krakow 31-007, Poland
| | - Dorota Jamróz
- Faculty
of Chemistry, Jagiellonian University, Krakow 31-007, Poland
| | - Ilpo Vattulainen
- Department
of Physics, Tampere University of Technology, Tampere 33720, Finland
- MEMPHYS-Center
for Biomembrane Physics, University of Southern Denmark, Odense 5230, Denmark
| | - Maria Nowakowska
- Faculty
of Chemistry, Jagiellonian University, Krakow 31-007, Poland
| | - Tomasz Róg
- Department
of Physics, Tampere University of Technology, Tampere 33720, Finland
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33
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Tsvetkov VB, Solov'eva AB, Melik-Nubarov NS. Computer modeling of the complexes of Chlorin e6 with amphiphilic polymers. Phys Chem Chem Phys 2015; 16:10903-13. [PMID: 24765639 DOI: 10.1039/c3cp55510k] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Recently it has been shown that Chlorin e6 (Ce6) when complexed with Pluronics (hydrophilic ethylene and propylene oxide block copolymers) and poly(N-vinylpyrrolidone) (PVP) exhibits considerably higher phototoxicity towards tumor cells than free Ce6. The present work aimed to model Ce6 interactions with hydrophilic Pluronic F127 and PVP and find out the nature of intermolecular forces stabilizing these complexes. Modeling included 3 steps: (i) application of molecular dynamics to study polymer folding using AMBER 8 program, (ii) evaluation of partial charges in the Ce6 molecule using different quantum mechanical, semi-empirical and topological approaches and (iii) docking analysis of Ce6 interactions with polymer coils using AUTODOCK 4.2. It was found that the folding in regular polymers does not occur stochastically, but involves the formation of "primary" helical structures, which further combined to form hairpin-like "secondary" structures. The latter in turn associated to form coils with minimal solvent accessible hydrophobic area. The Ce6 ring lies flat on the surface of the polymer coil at the interface between hydrophobic and hydrophilic regions. Calculations showed higher affinity of Ce6 for PVP in comparison to Pluronic and revealed marginal contribution of Coulomb forces to the stabilization of both complexes, which are mainly stabilized by van der Waals and hydrogen interactions.
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Affiliation(s)
- Vladimir B Tsvetkov
- Institute for Physical-Chemical Medicine, Malaya Pirogovskaya Str., 1a, Moscow 119435, Russia.
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34
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Ghosh G, Minnis M, Ghogare AA, Abramova I, Cengel KA, Busch TM, Greer A. Photoactive fluoropolymer surfaces that release sensitizer drug molecules. J Phys Chem B 2015; 119:4155-64. [PMID: 25686407 DOI: 10.1021/acs.jpcb.5b00808] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
We describe a physical-organic study of two fluoropolymers bearing a photoreleasable PEGylated photosensitizer that generates (1)O2((1)Δg) [chlorin e6 methoxy tri(ethylene glycol) triester]. The surfaces are Teflon/poly(vinyl alcohol) (PVA) nanocomposite and fluorinated silica. The relative efficiency of these surfaces to photorelease the PEGylated sensitizer [shown previously to be phototoxic to ovarian cancer cells (Kimani, S. et al. J. Org. Chem 2012, 77, 10638)] was slightly higher for the nanocomposite. In the presence of red light and O2, (1)O2 is formed, which cleaves an ethene linkage to liberate the sensitizer in 68-92% yield. The fluoropolymers were designed to deal with multiple problems. Namely, their success relied not only on high O2 solubility and drug repellency but also on the C-F bonds, which physically quench little (1)O2, for singlet oxygen's productive use away from the surface. The results obtained here indicate that Teflon-like surfaces have potential uses in delivering sensitizer and singlet oxygen for applications in tissue repair and photodynamic therapy (PDT).
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Affiliation(s)
- Goutam Ghosh
- Department of Chemistry and Graduate Center, Brooklyn College, City University of New York , Brooklyn, New York 11210, United States
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35
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Ghanwat VB, Mali SS, Mane RM, Patil PS, Hong CK, Bhosale PN. Thermoelectric properties of nanocrystalline Cu3SbSe4 thin films deposited by a self-organized arrested precipitation technique. NEW J CHEM 2015. [DOI: 10.1039/c5nj00686d] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Ternary Cu3SbSe4 thin films prepared by an arrested precipitation technique using non-toxic tartaric acid exhibit good thermoelectric properties.
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Affiliation(s)
- Vishvanath B. Ghanwat
- Materials Research Laboratory
- Department of Chemistry
- Shivaji University
- Kolhapur – 416 004
- India
| | - Sawanta S. Mali
- School of Applied Chemical Engineering
- Chonnam National University
- Gwangju
- South Korea
| | - Rahul M. Mane
- Materials Research Laboratory
- Department of Chemistry
- Shivaji University
- Kolhapur – 416 004
- India
| | - Pramod S. Patil
- Thin Film Materials Laboratory
- Department of Physics
- Shivaji University
- Kolhapur
- India
| | - Chang Kook Hong
- School of Applied Chemical Engineering
- Chonnam National University
- Gwangju
- South Korea
| | - Popatrao N. Bhosale
- Materials Research Laboratory
- Department of Chemistry
- Shivaji University
- Kolhapur – 416 004
- India
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36
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Yadava U, Gupta H, Roychoudhury M. Stabilization of microtubules by taxane diterpenoids: insight from docking and MD simulations. J Biol Phys 2014; 41:117-33. [PMID: 25542396 DOI: 10.1007/s10867-014-9369-5] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2014] [Accepted: 11/03/2014] [Indexed: 10/24/2022] Open
Abstract
Microtubules are formed from the molecules of tubulin, whose dynamics is important for many functions in a cell, the most dramatic of which is mitosis. Taxol is known to interact within a specific site on tubulin and also believed to block cell-cycle progression during mitosis by binding to and stabilizing microtubules. Along with the tremendous potential that taxol has shown as an anticancer drug, clinical problems exist with solubility, toxicity, and development of drug resistance. The crystal structure of taxane diterpenoids, namely, 10, 13-deacetyl-abeo-baccatin-IV (I), 5-acetyl-2-deacetoxydecinnamoyl-taxinine-0.29hydrate (II), 7, 9-dideacetyltaxayuntin (III), and Taxawallin-K (IV), are very similar to the taxol molecule. Considerable attention has been given to such molecules whose archetype is taxol but do not posses long aliphatic chains, to be developed as a substitute for taxol with fewer side effects. In the present work, the molecular docking of these taxane diterpenoids has been carried out with the tubulin alpha-beta dimer (1TUB) and refined microtubule structure (1JFF) using Glide-XP, in order to assess the potential of tubulin binding of these cytotoxic agents. Results show that all the ligands dock into the classical taxol binding site of tubulin. Taxol shows the best binding capabilities. On the basis of docking energy and interactions, apart from taxol, molecule II has a better tendency of binding with 1TUB while molecule I shows better binding capability with bovine tubulin 1JFF. To validate the binding capabilities, molecular dynamics (MD) simulations of the best docked complexes of ligands with 1JFF have been carried out for 15.0 ns using DESMOND. Average RMSD variations and time line study of interactions and contacts indicate that these complexes remain stable during the course of the dynamics. However, taxol and molecule II prevail over other taxoids.
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Affiliation(s)
- Umesh Yadava
- Department of Physics, DDU Gorakhpur University, Gorakhpur, 273009, India,
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37
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Castillo PM, de la Mata M, Casula MF, Sánchez-Alcázar JA, Zaderenko AP. PEGylated versus non-PEGylated magnetic nanoparticles as camptothecin delivery system. BEILSTEIN JOURNAL OF NANOTECHNOLOGY 2014; 5:1312-9. [PMID: 25247114 PMCID: PMC4168894 DOI: 10.3762/bjnano.5.144] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2014] [Accepted: 07/25/2014] [Indexed: 05/27/2023]
Abstract
Camptothecin (CPT; (S)-(+)-4-ethyl-4-hydroxy-1H-pyrano[3',4':6,7]indolizino[1,2-b]quinoline-3,14-(4H,12H)-dione) is a highly cytotoxic natural alkaloid that has not yet found use as chemotherapeutic agent due to its poor water-solubility and chemical instability and, as a consequence, no effective administration means have been designed. In this work, camptothecin has been successfully loaded into iron oxide superparamagnetic nanoparticles with an average size of 14 nm. It was found that surface modification of the nanoparticles by polyethylene glycol enables loading a large amount of camptothecin. While the unloaded nanoparticles do not induce apoptosis in the H460 lung cancer cell line, the camptothecin-loaded nanoparticle formulations exhibit remarkable pro-apoptotic activity. These results indicate that camptothecin retains its biological activity after loading onto the magnetic nanoparticles. The proposed materials represent novel materials based on naturally occurring bioactive molecules loaded onto nanoparticles to be used as chemotherapeutic formulations. The procedure seems apt to be extended to other active molecules extracted from natural products. In addition, these materials offer the potential of being further implemented for combined imaging and therapeutics, as magnetic nanoparticles are known to be multifunctional tools for biomedicine.
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Affiliation(s)
- Paula M Castillo
- INSTM and Dipartimento di Scienze Chimiche e Geologiche. Università di Cagliari, Italy
- Departamento de Sistemas Físicos, Químicos y Naturales. Universidad Pablo de Olavide, Sevilla, Spain
| | - Mario de la Mata
- Centro Andaluz de Biología del Desarrollo (CABD-CSIC-Universidad Pablo de Olavide), Sevilla, Spain
| | - Maria F Casula
- INSTM and Dipartimento di Scienze Chimiche e Geologiche. Università di Cagliari, Italy
| | - José A Sánchez-Alcázar
- Centro Andaluz de Biología del Desarrollo (CABD-CSIC-Universidad Pablo de Olavide), Sevilla, Spain
| | - Ana P Zaderenko
- Departamento de Sistemas Físicos, Químicos y Naturales. Universidad Pablo de Olavide, Sevilla, Spain
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38
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Srivatsan A, Jenkins SV, Jeon M, Wu Z, Kim C, Chen J, Pandey R. Gold nanocage-photosensitizer conjugates for dual-modal image-guided enhanced photodynamic therapy. Am J Cancer Res 2014; 4:163-74. [PMID: 24465274 PMCID: PMC3900801 DOI: 10.7150/thno.7064] [Citation(s) in RCA: 79] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2013] [Accepted: 11/04/2013] [Indexed: 12/20/2022] Open
Abstract
We have demonstrated that gold nanocage-photosensitizer conjugates can enable dual image-guided delivery of photosensitizer and significantly improve the efficacy of photodynamic therapy in a murine model. The photosensitizer, 3-devinyl-3-(1'-hexyloxyethyl)pyropheophorbide (HPPH), was noncovalently entrapped in the poly(ethylene glycol) monolayer coated on the surface of gold nanocages. The conjugate is stable in saline solutions, while incubation in protein rich solutions leads to gradual unloading of the HPPH, which can be monitored optically by fluorescence and photoacoustic imaging. The slow nature of the release in turn results in an increase in accumulation of the drug within implanted tumors due to the passive delivery of gold nanocages. Furthermore, the conjugate is found to generate more therapeutic singlet oxygen and have a lower IC50 value than the free drug alone. Thus the conjugate shows significant suppression of tumor growth as compared to the free drug in vivo. Short-term study showed neither toxicity nor phenotypical changes in mice at therapeutic dose of the conjugates or even at 100-fold higher than therapeutic dose of gold nanocages.
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39
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Rissanen S, Kumorek M, Martinez-Seara H, Li YC, Jamróz D, Bunker A, Nowakowska M, Vattulainen I, Kepczynski M, Róg T. Effect of PEGylation on Drug Entry into Lipid Bilayer. J Phys Chem B 2013; 118:144-51. [DOI: 10.1021/jp4105745] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Sami Rissanen
- Department
of Physics, Tampere University of Technology, PO Box 692, FI-33101 Tampere, Finland
| | - Marta Kumorek
- Faculty
of Chemistry, Jagiellonian University, Ingardena 3, 30-060 Kraków, Poland
| | - Hector Martinez-Seara
- Department
of Physics, Tampere University of Technology, PO Box 692, FI-33101 Tampere, Finland
| | - Yen-Chin Li
- Centre
for Drug Research, Faculty of Pharmacy, University of Helsinki, FI-00014 Helsinki, Finland
| | - Dorota Jamróz
- Faculty
of Chemistry, Jagiellonian University, Ingardena 3, 30-060 Kraków, Poland
| | - Alex Bunker
- Centre
for Drug Research, Faculty of Pharmacy, University of Helsinki, FI-00014 Helsinki, Finland
| | - Maria Nowakowska
- Faculty
of Chemistry, Jagiellonian University, Ingardena 3, 30-060 Kraków, Poland
| | - Ilpo Vattulainen
- Department
of Physics, Tampere University of Technology, PO Box 692, FI-33101 Tampere, Finland
- MEMPHYS—Center
for Biomembrane Physics, University of Southern Denmark, DK-5230 Odense, Denmark
| | - Mariusz Kepczynski
- Faculty
of Chemistry, Jagiellonian University, Ingardena 3, 30-060 Kraków, Poland
| | - Tomasz Róg
- Department
of Physics, Tampere University of Technology, PO Box 692, FI-33101 Tampere, Finland
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40
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Zhiyentayev TM, Boltaev UT, Solov'eva AB, Aksenova NA, Glagolev NN, Chernjak AV, Melik-Nubarov NS. Complexes of Chlorin e6 with Pluronics and Polyvinylpyrrolidone: Structure and Photodynamic Activity in Cell Culture. Photochem Photobiol 2013; 90:171-82. [PMID: 24118074 DOI: 10.1111/php.12181] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2013] [Accepted: 09/24/2013] [Indexed: 01/13/2023]
Abstract
Polymeric carriers are extensively used in photodynamic therapy (PDT) for increase of efficacy of photosensitizers. Here, we report the influence of nine Pluronic copolymers on phototoxicity of chlorin e6 (Ce6), in particular 5- to 7-fold rise in the phototoxicity caused by hydrophilic Pluronics F127, F108, F68 and F87 and practically no influence on Ce6 of more hydrophobic polymers. The revealed value of 0.2 mg mL(-1) of Pluronic F127 concentration sufficient for half-of-maximal increase of Ce6 photodynamic activity proved to be close to 0.16 mg mL(-1) inherent in well-documented carrier poly(N-vinylpyrrolidone) (PVP). The dissociation constants of Ce6 complexes with Pluronic F127 and PVP that were estimated from UV spectra were 0.252 and 0.036 mg mL(-1) , respectively, indicating higher stability of Ce6 complex with PVP. According to the results of (1) H-NMR studies of Ce6 complexes, the porphyrin interacts not only with hydrophobic regions but also with hydrophilic sides of both polymers.
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Affiliation(s)
- Timur M Zhiyentayev
- Chemistry Department, M.V. Lomonosov Moscow State University, Moscow, Russia
| | - Umed T Boltaev
- Chemistry Department, M.V. Lomonosov Moscow State University, Moscow, Russia
| | | | | | | | - Alexander V Chernjak
- Institute of Problems of Chemical Physics RAS, prosp. Academika Semenova 1, Chernogolovka, Russia
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41
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Han E, Lee H. Effects of PEGylation on the binding interaction of magainin 2 and tachyplesin I with lipid bilayer surface. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2013; 29:14214-14221. [PMID: 24160865 DOI: 10.1021/la4036985] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Poly(ethylene glycol) (PEG)-grafted magainin 2 and tachyplesin I were simulated with lipid bilayers. In the simulations of PEGylated magainin 2 and tachyplesin I in water, both peptides are wrapped by PEG chains. The α-helical structure of PEGylated magainin 2 is broken in water, while the β-sheet of PEGylated tachyplesin I keeps stable, similar to the structural behavior of unPEGylated peptides, in agreement with experiments. Simulations of PEGylated peptides with lipid bilayers show that PEG chains block the electrostatic interaction between cationic residues of peptides and anionic phosphates of lipids, leading to the less binding of the peptide to the bilayer surface, which is observed more significantly for magainin 2 than for tachyplesin I. Since the random-coiled magainin 2 can be more completely covered by PEGs than does the β-sheet tachyplesin I, the PEGylation effect on the decreased binding is larger for magainin 2, showing the dependence of PEGylation on the peptide structure. These simulation findings qualitatively support the experimental observation of the different extents of the reduced membrane-permeabilizing activity for PEGylated magainin 2 and tachyplesin I.
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Affiliation(s)
- Eol Han
- Department of Chemical Engineering, Dankook University , Yongin 448-701, South Korea
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Polymer drug interactions in thiadiazolylthioacetamide derivatives–linear dendritic copolymer nanoparticles: ONIOM approach. JOURNAL OF PHARMACEUTICAL INVESTIGATION 2013. [DOI: 10.1007/s40005-013-0074-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Kimani S, Ghosh G, Ghogare A, Rudshteyn B, Bartusik D, Hasan T, Greer A. Synthesis and characterization of mono-, di-, and tri-poly(ethylene glycol) chlorin e6 conjugates for the photokilling of human ovarian cancer cells. J Org Chem 2012; 77:10638-47. [PMID: 23126407 DOI: 10.1021/jo301889s] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
PEGylated chlorin e(6) photosensitizers were synthesized with tri(ethylene glycol) attached at the ester bond(s) for a 1:1 conjugate at the 17(3)-position, a 2:1 conjugate at the 15(2)- and 17(3)-positions, and a 3:1 conjugate at the 13(1)-, 15(2)-, and 17(3)-positions. These chlorin sensitizers were studied for hydrolytic stability and solubility, as well as ovarian OVCAR-5 cancer cell uptake, localization, and phototoxicity. Increasing numbers of the PEG groups in the mono-, di-, and tri-PEG chlorin conjugates increased the water solubility and sensitivity to hydrolysis and uptake into the ovarian cancer cells. The PEG chlorin conjugates accumulated in the cytoplasm and mitrochondria, but not in lysosomes. Higher phototoxicity was roughly correlated with higher numbers of PEG groups, with the tri-PEG chlorin conjugate showing the best overall ovarian cancer cell photokilling of the series. Singlet oxygen lifetimes, solvent deuteration, and the effects of additives azide ion and d-mannitol were examined to help clarify the photokilling mechanisms. A Type-II (singlet oxygen) photosensitized mechanism is suggested for the di- and tri-PEG chlorin conjugates; however, a more complicated process based in part on a Type-I (radicals or radical ions) mechanism is suggested for the parent chlorin e(6) and the mono-PEG chlorin conjugate.
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Affiliation(s)
- Stanley Kimani
- Department of Chemistry and Graduate Center, City University of New York, Brooklyn College, Brooklyn, New York 11210, USA
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