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Bojarová P, Tavares MR, Laaf D, Bumba L, Petrásková L, Konefał R, Bláhová M, Pelantová H, Elling L, Etrych T, Chytil P, Křen V. Biocompatible glyconanomaterials based on HPMA-copolymer for specific targeting of galectin-3. J Nanobiotechnology 2018; 16:73. [PMID: 30236114 PMCID: PMC6146777 DOI: 10.1186/s12951-018-0399-1] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2018] [Accepted: 09/11/2018] [Indexed: 01/01/2023] Open
Abstract
Background Galectin-3 (Gal-3) is a promising target in cancer therapy with a high therapeutic potential due to its abundant localization within the tumor tissue and its involvement in tumor development and proliferation. Potential clinical application of Gal-3-targeted inhibitors is often complicated by their insufficient selectivity or low biocompatibility. Nanomaterials based on N-(2-hydroxypropyl)methacrylamide (HPMA) nanocarrier are attractive for in vivo application due to their good water solubility and lack of toxicity and immunogenicity. Their conjugation with tailored carbohydrate ligands can yield specific glyconanomaterials applicable for targeting biomedicinally relevant lectins like Gal-3. Results In the present study we describe the synthesis and the structure-affinity relationship study of novel Gal-3-targeted glyconanomaterials, based on hydrophilic HPMA nanocarriers. HPMA nanocarriers decorated with varying amounts of Gal-3 specific epitope GalNAcβ1,4GlcNAc (LacdiNAc) were analyzed in a competitive ELISA-type assay and their binding kinetics was described by surface plasmon resonance. We showed the impact of various linker types and epitope distribution on the binding affinity to Gal-3. The synthesis of specific functionalized LacdiNAc epitopes was accomplished under the catalysis by mutant β-N-acetylhexosaminidases. The glycans were conjugated to statistic HPMA copolymer precursors through diverse linkers in a defined pattern and density using Cu(I)-catalyzed azide–alkyne cycloaddition. The resulting water-soluble and structurally flexible synthetic glyconanomaterials exhibited affinity to Gal-3 in low μM range. Conclusions The results of this study reveal the relation between the linker structure, glycan distribution and the affinity of the glycopolymer nanomaterial to Gal-3. They pave the way to specific biomedicinal glyconanomaterials that target Gal-3 as a therapeutic goal in cancerogenesis and other disorders. Electronic supplementary material The online version of this article (10.1186/s12951-018-0399-1) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- P Bojarová
- Institute of Microbiology, Czech Academy of Sciences, Vídeňská 1083, 14220, Prague 4, Czech Republic.
| | - M R Tavares
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovský Sq. 2, 16206, Prague 6, Czech Republic
| | - D Laaf
- Laboratory for Biomaterials, Institute for Biotechnology and Helmholtz-Institute for Biomedical Engineering, RWTH Aachen University, Pauwelsstraße 20, 52074, Aachen, Germany
| | - L Bumba
- Institute of Microbiology, Czech Academy of Sciences, Vídeňská 1083, 14220, Prague 4, Czech Republic
| | - L Petrásková
- Institute of Microbiology, Czech Academy of Sciences, Vídeňská 1083, 14220, Prague 4, Czech Republic
| | - R Konefał
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovský Sq. 2, 16206, Prague 6, Czech Republic
| | - M Bláhová
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovský Sq. 2, 16206, Prague 6, Czech Republic
| | - H Pelantová
- Institute of Microbiology, Czech Academy of Sciences, Vídeňská 1083, 14220, Prague 4, Czech Republic
| | - L Elling
- Laboratory for Biomaterials, Institute for Biotechnology and Helmholtz-Institute for Biomedical Engineering, RWTH Aachen University, Pauwelsstraße 20, 52074, Aachen, Germany
| | - T Etrych
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovský Sq. 2, 16206, Prague 6, Czech Republic
| | - P Chytil
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovský Sq. 2, 16206, Prague 6, Czech Republic.
| | - V Křen
- Institute of Microbiology, Czech Academy of Sciences, Vídeňská 1083, 14220, Prague 4, Czech Republic
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Zhang M, Zhu J, Zheng Y, Guo R, Wang S, Mignani S, Caminade AM, Majoral JP, Shi X. Doxorubicin-Conjugated PAMAM Dendrimers for pH-Responsive Drug Release and Folic Acid-Targeted Cancer Therapy. Pharmaceutics 2018; 10:E162. [PMID: 30235881 PMCID: PMC6160908 DOI: 10.3390/pharmaceutics10030162] [Citation(s) in RCA: 62] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2018] [Revised: 09/11/2018] [Accepted: 09/17/2018] [Indexed: 12/18/2022] Open
Abstract
We present here the development of multifunctional doxorubicin (DOX)-conjugated poly(amidoamine) (PAMAM) dendrimers as a unique platform for pH-responsive drug release and targeted chemotherapy of cancer cells. In this work, we covalently conjugated DOX onto the periphery of partially acetylated and folic acid (FA)-modified generation 5 (G5) PAMAM dendrimers through a pH-sensitive cis-aconityl linkage to form the G5.NHAc-FA-DOX conjugates. The formed dendrimer conjugates were well characterized using different methods. We show that DOX release from the G5.NHAc-FA-DOX conjugates follows an acid-triggered manner with a higher release rate under an acidic pH condition (pH = 5 or 6, close to the acidic pH of tumor microenvironment) than under a physiological pH condition. Both in vitro cytotoxicity evaluation and cell morphological observation demonstrate that the therapeutic activity of dendrimer-DOX conjugates against cancer cells is absolutely related to the DOX drug released. More importantly, the FA conjugation onto the dendrimers allowed a specific targeting to cancer cells overexpressing FA receptors (FAR), and allowed targeted inhibition of cancer cells. The developed G5.NHAc-FA-DOX conjugates may be used as a promising nanodevice for targeted cancer chemotherapy.
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Affiliation(s)
- Mengen Zhang
- Key Laboratory of Science & Technology of Eco-Textile, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, China.
| | - Jingyi Zhu
- College of Materials Science and Engineering, Donghua University, Shanghai 201620, China.
| | - Yun Zheng
- Key Laboratory of Science & Technology of Eco-Textile, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, China.
| | - Rui Guo
- Key Laboratory of Science & Technology of Eco-Textile, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, China.
| | - Shige Wang
- Key Laboratory of Science & Technology of Eco-Textile, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, China.
| | - Serge Mignani
- Centro de Química da Madeira (CQM), Universidade da Madeira, Campus da Penteada, 9020-105 Funchal, Portugal.
| | - Anne-Marie Caminade
- Laboratoire de Chimie de Coordination du CNRS, 205 Route de Narbonne, BP 44099, 31077 Toulouse CEDEX 4, France.
| | - Jean-Pierre Majoral
- Laboratoire de Chimie de Coordination du CNRS, 205 Route de Narbonne, BP 44099, 31077 Toulouse CEDEX 4, France.
| | - Xiangyang Shi
- Key Laboratory of Science & Technology of Eco-Textile, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, China.
- Centro de Química da Madeira (CQM), Universidade da Madeira, Campus da Penteada, 9020-105 Funchal, Portugal.
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53
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Koziolová E, Kostka L, Kotrchová L, Šubr V, Konefal R, Nottelet B, Etrych T. N-(2-Hydroxypropyl)methacrylamide-Based Linear, Diblock, and Starlike Polymer Drug Carriers: Advanced Process for Their Simple Production. Biomacromolecules 2018; 19:4003-4013. [DOI: 10.1021/acs.biomac.8b00973] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
| | | | | | | | | | - Benjamin Nottelet
- Institut des Biomolécules Max Mousseron (IBMM - UMR 5247), CNRS, Université Montpellier, ENSCM, Faculté de Pharmacie, 15, Avenue Charles Flahault BP14491, Montpellier Cedex 5, France
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54
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Levit M, Zashikhina N, Dobrodumov A, Kashina A, Tarasenko I, Panarin E, Fiorucci S, Korzhikova-Vlakh E, Tennikova T. Synthesis and characterization of well-defined poly(2-deoxy-2-methacrylamido-d-glucose) and its biopotential block copolymers via RAFT and ROP polymerization. Eur Polym J 2018. [DOI: 10.1016/j.eurpolymj.2018.05.018] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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55
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Nanotherapeutics with suitable properties for advanced anticancer therapy based on HPMA copolymer-bound ritonavir via pH-sensitive spacers. Eur J Pharm Biopharm 2018; 131:141-150. [PMID: 30075311 DOI: 10.1016/j.ejpb.2018.07.023] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2018] [Revised: 07/27/2018] [Accepted: 07/27/2018] [Indexed: 01/22/2023]
Abstract
Ritonavir (RIT) is a widely used antiviral drug that acts as an HIV protease inhibitor with emerging potential in anticancer therapies. RIT causes inhibition of P-glycoprotein, which plays an important role in multidrug resistance (MDR) in cancer cells when overexpressed. Moreover, RIT causes mitochondrial dysfunction, leading to decreased ATP production and reduction of caveolin I expression, which can affect cell migration and tumor progression. To increase its direct antitumor activity, decrease severe side effects induced by the use of free RIT and improve its pharmacokinetics, ritonavir 5-methyl-4-oxohexanoate (RTV) was synthesized and conjugated to a tumor-targeted polymer carrier based on a N-(2-hydroxypropyl)methacrylamide (HPMA) copolymer. Here we demonstrated that polymer-bound RTV enhanced the internalization of polymer-RTV conjugates, differing in RTV content from 4 to 15 wt%, in HeLa cancer cells compared with polymer without RTV. The most efficient influx and internalization properties were determined for the polymer conjugate bearing 11 wt% of RTV. This conjugate was internalized by cells using both caveolin- and clathrin-dependent endocytic pathways in contrast to the RTV-free polymer, which was preferentially internalized only by clathrin-mediated endocytosis. Moreover, we found the co-localization of the RTV-conjugate with mitochondria and a significant decrease of ATP production in treated cells. Thus, the impact on mitochondrial mechanism can influence the function of ATP-dependent P-glycoprotein and also the cell viability of MDR cancer cells. Overall, this study demonstrated that the polymer-RTV conjugate is a promising polymer-based nanotherapeutic, suitable for antitumor combination therapy with other anticancer drugs and a potential mitochondrial drug delivery system.
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Zhang X, Chytil P, Etrych T, Liu W, Rodrigues L, Winter G, Filippov SK, Papadakis CM. Binding of HSA to Macromolecular pHPMA Based Nanoparticles for Drug Delivery: An Investigation Using Fluorescence Methods. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:7998-8006. [PMID: 29949376 DOI: 10.1021/acs.langmuir.8b01015] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Amphiphilic poly( N-(2-hydroxypropyl)methacrylamide) copolymers ( pHPMA) bearing cholesterol side groups in phosphate buffer saline self-assemble into nanoparticles (NPs) which can be used as tumor-targeted drug carriers. It was previously shown by us that human serum albumin (HSA) interacts weakly with the NPs. However, the mechanism of this binding could not be resolved due to overlapping of signals from the complex system. Here, we use fluorescence labeling to distinguish the components and to characterize the binding: On the one hand, a fluorescent dye was attached to pHPMA, so that the diffusion behavior of the NPs could be studied in the presence of HSA using fluorescence lifetime correlation spectroscopy. On the other hand, quenching of the intrinsic fluorescence of HSA revealed the origin of the binding, which is mainly the complexation between HSA and cholesterol side groups. Furthermore, a binding constant was obtained.
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Affiliation(s)
- Xiaohan Zhang
- Physik-Department, Physik weicher Materie , Technische Universität München , James-Franck-Str. 1 , 85748 Garching , Germany
| | - Petr Chytil
- Institute of Macromolecular Chemistry , Czech Academy of Sciences , Heyrovského nám. 2 , 162 06 Prague 6 , Czech Republic
| | - Tomáš Etrych
- Institute of Macromolecular Chemistry , Czech Academy of Sciences , Heyrovského nám. 2 , 162 06 Prague 6 , Czech Republic
| | - Weiwei Liu
- Department of Pharmacy, Pharmaceutical Technology and Biopharmaceutics , Ludwig-Maximilians-Universität München , Butenandtstr. 5 , 81377 Munich , Germany
| | - Leticia Rodrigues
- Department of Pharmacy, Pharmaceutical Technology and Biopharmaceutics , Ludwig-Maximilians-Universität München , Butenandtstr. 5 , 81377 Munich , Germany
| | - Gerhard Winter
- Department of Pharmacy, Pharmaceutical Technology and Biopharmaceutics , Ludwig-Maximilians-Universität München , Butenandtstr. 5 , 81377 Munich , Germany
| | - Sergey K Filippov
- Institute of Macromolecular Chemistry , Czech Academy of Sciences , Heyrovského nám. 2 , 162 06 Prague 6 , Czech Republic
| | - Christine M Papadakis
- Physik-Department, Physik weicher Materie , Technische Universität München , James-Franck-Str. 1 , 85748 Garching , Germany
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57
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Qiu G, Zhao L, Liu X, Zhao Q, Liu F, Liu Y, Liu Y, Gu H. ROMP synthesis of benzaldehyde-containing amphiphilic block polynorbornenes used to conjugate drugs for pH-responsive release. REACT FUNCT POLYM 2018. [DOI: 10.1016/j.reactfunctpolym.2018.03.010] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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58
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Fang J, Šubr V, Islam W, Hackbarth S, Islam R, Etrych T, Ulbrich K, Maeda H. N-(2-hydroxypropyl)methacrylamide polymer conjugated pyropheophorbide-a, a promising tumor-targeted theranostic probe for photodynamic therapy and imaging. Eur J Pharm Biopharm 2018; 130:165-176. [PMID: 29885851 DOI: 10.1016/j.ejpb.2018.06.005] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2018] [Revised: 06/06/2018] [Accepted: 06/06/2018] [Indexed: 01/11/2023]
Abstract
Tumor-targeted photodynamic therapy (PDT) using polymeric photosensitizers is a promising therapeutic strategy for cancer treatment. In this study, we synthesized a pHPMA conjugated pyropheophorbide-a (P-PyF) as a cancer theranostic agent for PDT and photodynamic diagnostics (PDD). Pyropheophorbide-a has one carboxyl group which was conjugated to pHPMA via amide bond yielding the intended product with high purity. In aqueous solutions, P-PyF showed a mean particle size of ∼200 nm as it forms micelle which exhibited fluorescence quenching and thus very little singlet oxygen (1O2) production. In contrast, upon disruption of micelle strong fluorescence and 1O2 production were observed. In vitro study clearly showed the PDT effect of P-PyF. More potent 1O2 production and PDT effect were observed during irradiation at ∼420 nm, the maximal absorbance of pyropheophorbide-a, than irradiation at longer wavelength (i.e., ∼680 nm), suggesting selection of proper absorption light is essential for successful PDT. In vivo study showed high tumor accumulation of P-PyF compared with most of normal tissues due to the enhanced permeability and retention (EPR) effect, which resulting in superior antitumor effect under irradiation using normal xenon light source of endoscope, and clear tumor imaging profiles even in the metastatic lung cancer at 28 days after administration of P-PyF. On the contrary irradiation using long wavelength (i.e., ∼680 nm), the lowest Q-Band, exhibited remarkable tumor imaging effect with little autofluorescence of background. These findings strongly suggested P-PyF may be a potential candidate-drug for PDT/PDD, particularly using two different wavelength for treatment and detection/imaging, respectively.
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Affiliation(s)
- Jun Fang
- Laboratory of Microbiology and Oncology, Faculty of Pharmaceutical Sciences, Sojo University, Kumamoto 860-0082, Japan.
| | - Vladimír Šubr
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovsky sq. 2, 16206 Prague 6, Czech Republic
| | - Waliul Islam
- Department of Microbiology, Graduate School of Medical Sciences, Kumamoto University, Kumamoto 860-8556, Japan
| | - Steffen Hackbarth
- Institute of Physics, Photobiophysics, Humboldt University of Berlin, Newtonstr. 15, 12489 Berlin, Germany
| | - Rayhanul Islam
- Laboratory of Microbiology and Oncology, Faculty of Pharmaceutical Sciences, Sojo University, Kumamoto 860-0082, Japan
| | - Tomáš Etrych
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovsky sq. 2, 16206 Prague 6, Czech Republic
| | - Karel Ulbrich
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovsky sq. 2, 16206 Prague 6, Czech Republic
| | - Hiroshi Maeda
- Department of Microbiology, Graduate School of Medical Sciences, Kumamoto University, Kumamoto 860-8556, Japan; BioDynamics Research Foundation, Kumamoto 862-0954, Japan; Osaka University, Graduate School of Medicine, Suita, Osaka, Japan.
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59
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Chytil P, Šírová M, Kudláčová J, Říhová B, Ulbrich K, Etrych T. Bloodstream Stability Predetermines the Antitumor Efficacy of Micellar Polymer–Doxorubicin Drug Conjugates with pH-Triggered Drug Release. Mol Pharm 2018. [DOI: 10.1021/acs.molpharmaceut.8b00156] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Petr Chytil
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovského náměstı́ 2, 162 06 Prague 6, Czech Republic
| | - Milada Šírová
- Institute of Microbiology, Czech Academy of Sciences, Vídeňská 1083, 142 20 Prague 4, Czech Republic
| | - Júlia Kudláčová
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovského náměstı́ 2, 162 06 Prague 6, Czech Republic
| | - Blanka Říhová
- Institute of Microbiology, Czech Academy of Sciences, Vídeňská 1083, 142 20 Prague 4, Czech Republic
| | - Karel Ulbrich
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovského náměstı́ 2, 162 06 Prague 6, Czech Republic
| | - Tomáš Etrych
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovského náměstı́ 2, 162 06 Prague 6, Czech Republic
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60
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Zhang X, Niebuur BJ, Chytil P, Etrych T, Filippov SK, Kikhney A, Wieland DCF, Svergun DI, Papadakis CM. Macromolecular pHPMA-Based Nanoparticles with Cholesterol for Solid Tumor Targeting: Behavior in HSA Protein Environment. Biomacromolecules 2018; 19:470-480. [PMID: 29381335 DOI: 10.1021/acs.biomac.7b01579] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Nanoparticles (NPs) that form by self-assembly of amphiphilic poly(N-(2-hydroxypropyl)-methacrylamide) (pHPMA) copolymers bearing cholesterol side groups are potential drug carriers for solid tumor treatment. Here, we investigate their behavior in solutions of human serum albumin (HSA) in phosphate buffered saline. Mixed solutions of NPs, from polymer conjugates with or without the anticancer drug doxorubicin (Dox) bound to them, and HSA at concentrations up to the physiological value are characterized by synchrotron small-angle X-ray scattering and isothermal titration calorimetry. When Dox is absent, a small amount of HSA molecules bind to the cholesterol groups that form the core of the NPs by diffusing through the loose pHPMA shell or get caught in meshes formed by the pHPMA chains. These interactions are strongly hindered by the presence of Dox, which is distributed in the pHPMA shell, meaning that the delivery of Dox by the NPs in the human body is not affected by the presence of HSA.
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Affiliation(s)
- Xiaohan Zhang
- Technische Universität München , Physik-Department, Physik weicher Materie, James-Franck-Str. 1, 85748 Garching, Germany
| | - Bart-Jan Niebuur
- Technische Universität München , Physik-Department, Physik weicher Materie, James-Franck-Str. 1, 85748 Garching, Germany
| | - Petr Chytil
- Institute of Macromolecular Chemistry , Czech Academy of Sciences, v. v. i., Heyrovsky Sq. 2, 162 06 Prague 6, Czech Republic
| | - Tomas Etrych
- Institute of Macromolecular Chemistry , Czech Academy of Sciences, v. v. i., Heyrovsky Sq. 2, 162 06 Prague 6, Czech Republic
| | - Sergey K Filippov
- Institute of Macromolecular Chemistry , Czech Academy of Sciences, v. v. i., Heyrovsky Sq. 2, 162 06 Prague 6, Czech Republic
| | - Alexey Kikhney
- European Molecular Biology Laboratory, Hamburg Outstation, c/o Deutsches Elektronen-Synchrotron, Notkestr. 85, 22607 Hamburg, Germany
| | - D C Florian Wieland
- European Molecular Biology Laboratory, Hamburg Outstation, c/o Deutsches Elektronen-Synchrotron, Notkestr. 85, 22607 Hamburg, Germany
| | - Dmitri I Svergun
- European Molecular Biology Laboratory, Hamburg Outstation, c/o Deutsches Elektronen-Synchrotron, Notkestr. 85, 22607 Hamburg, Germany
| | - Christine M Papadakis
- Technische Universität München , Physik-Department, Physik weicher Materie, James-Franck-Str. 1, 85748 Garching, Germany
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61
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Weiss VM, Lucas H, Mueller T, Chytil P, Etrych T, Naolou T, Kressler J, Mäder K. Intended and Unintended Targeting of Polymeric Nanocarriers: The Case of Modified Poly(glycerol adipate) Nanoparticles. Macromol Biosci 2017; 18. [PMID: 29218838 DOI: 10.1002/mabi.201700240] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2017] [Revised: 10/24/2017] [Indexed: 11/09/2022]
Abstract
Biodegradable nanoparticles based on stearic acid-modified poly(glycerol adipate) (PGAS) are promising carriers for drug delivery. In order to investigate the impact of the particle interface characteristics on the biological fate, PGAS nanoparticles are covalently and noncovalently coated with N-(2-hydroxypropyl) methacrylamide (HPMA) copolymers. HPMA copolymer-modified PGAS nanoparticles have similar particle sizes, but less negative zeta-potentials. Nanoparticles are double labeled with the fluorescent dyes DiR (noncovalently) and DYOMICS-676 (covalently bound to HPMA copolymer), and their biodistribution is investigated noninvasively by multispectral optical imaging. Both covalent and noncovalent coatings cause changes in the pharmacokinetics and biodistribution in healthy and tumor-bearing mice. In addition to the intended tumor accumulation, high signals of both fluorescent dyes are also observed in other organs, including liver, ovaries, adrenal glands, and bone. The unintended accumulation of nanocarriers needs further detailed and systematic investigations, especially with respect to the observed ovarian and adrenal gland accumulation.
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Affiliation(s)
- Verena M Weiss
- Institute of Pharmacy, Martin Luther University Halle-Wittenberg, 06120, Halle (Saale), Germany
| | - Henrike Lucas
- Institute of Pharmacy, Martin Luther University Halle-Wittenberg, 06120, Halle (Saale), Germany
| | - Thomas Mueller
- Department of Internal Medicine IV (Oncology/Hematology), Martin Luther University Halle-Wittenberg, 06120, Halle (Saale), Germany
| | - Petr Chytil
- Institute of Macromolecular Chemistry, Czech Academy of Science, 162 06, Prague 6, Czech Republic
| | - Tomáš Etrych
- Institute of Macromolecular Chemistry, Czech Academy of Science, 162 06, Prague 6, Czech Republic
| | - Toufik Naolou
- Department of Biomimetic Materials, Institute of Biomaterial Science, HZG Teltow, 14513, Teltow, Germany
| | - Jörg Kressler
- Institute of Chemistry, Martin Luther University Halle-Wittenberg, 06120, Halle (Saale), Germany
| | - Karsten Mäder
- Institute of Pharmacy, Martin Luther University Halle-Wittenberg, 06120, Halle (Saale), Germany
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Sedlacek O, Monnery BD, Mattova J, Kucka J, Panek J, Janouskova O, Hocherl A, Verbraeken B, Vergaelen M, Zadinova M, Hoogenboom R, Hruby M. Poly(2-ethyl-2-oxazoline) conjugates with doxorubicin for cancer therapy: In vitro and in vivo evaluation and direct comparison to poly[N-(2-hydroxypropyl)methacrylamide] analogues. Biomaterials 2017; 146:1-12. [PMID: 28892751 DOI: 10.1016/j.biomaterials.2017.09.003] [Citation(s) in RCA: 67] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2017] [Revised: 08/21/2017] [Accepted: 09/02/2017] [Indexed: 02/08/2023]
Abstract
We designed and synthesized a new delivery system for the anticancer drug doxorubicin based on a biocompatible hydrophilic poly(2-ethyl-2-oxazoline) (PEtOx) carrier with linear architecture and narrow molar mass distribution. The drug is connected to the polymer backbone via an acid-sensitive hydrazone linker, which allows its triggered release in the tumor. The in vitro studies demonstrate successful cellular uptake of conjugates followed by release of the cytostatic cargo. In vivo experiments in EL4 lymphoma bearing mice revealed prolonged blood circulation, increased tumor accumulation and enhanced antitumor efficacy of the PEtOx conjugate having higher molecular weight (40 kDa) compared to the lower molecular weight (20 kDa) polymer. Finally, the in vitro and in vivo anti-cancer properties of the prepared PEtOx conjugates were critically compared with those of the analogous system based on the well-established PHPMA carrier. Despite the relatively slower intracellular uptake of PEtOx conjugates, resulting also in their lower cytotoxicity, there are no substantial differences in in vivo biodistribution and anti-cancer efficacy of both classes of polymer-Dox conjugates. Considering the synthetic advantages of poly(2-alkyl-2-oxazoline)s, the presented study demonstrates their potential as a versatile alternative to well-known PEO- or PHPMA-based materials for construction of drug delivery systems.
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Affiliation(s)
- Ondrej Sedlacek
- Institute of Macromolecular Chemistry, v.v.i., Academy of Sciences of the Czech Republic, Heyrovsky Sq. 2, 162 06 Prague 6, Czech Republic.
| | - Bryn D Monnery
- Supramolecular Chemistry Group, Department of Organic and Macromolecular Chemistry, Ghent University, Krijgslaan 281 S4, B-9000 Ghent, Belgium
| | - Jana Mattova
- Institute of Biophysics and Informatics, First Faculty of Medicine, Charles University in Prague, Salmovska 1, 120 00 Prague 2, Czech Republic
| | - Jan Kucka
- Institute of Macromolecular Chemistry, v.v.i., Academy of Sciences of the Czech Republic, Heyrovsky Sq. 2, 162 06 Prague 6, Czech Republic
| | - Jiri Panek
- Institute of Macromolecular Chemistry, v.v.i., Academy of Sciences of the Czech Republic, Heyrovsky Sq. 2, 162 06 Prague 6, Czech Republic
| | - Olga Janouskova
- Institute of Macromolecular Chemistry, v.v.i., Academy of Sciences of the Czech Republic, Heyrovsky Sq. 2, 162 06 Prague 6, Czech Republic
| | - Anita Hocherl
- Institute of Macromolecular Chemistry, v.v.i., Academy of Sciences of the Czech Republic, Heyrovsky Sq. 2, 162 06 Prague 6, Czech Republic
| | - Bart Verbraeken
- Supramolecular Chemistry Group, Department of Organic and Macromolecular Chemistry, Ghent University, Krijgslaan 281 S4, B-9000 Ghent, Belgium
| | - Maarten Vergaelen
- Supramolecular Chemistry Group, Department of Organic and Macromolecular Chemistry, Ghent University, Krijgslaan 281 S4, B-9000 Ghent, Belgium
| | - Marie Zadinova
- Institute of Biophysics and Informatics, First Faculty of Medicine, Charles University in Prague, Salmovska 1, 120 00 Prague 2, Czech Republic
| | - Richard Hoogenboom
- Supramolecular Chemistry Group, Department of Organic and Macromolecular Chemistry, Ghent University, Krijgslaan 281 S4, B-9000 Ghent, Belgium.
| | - Martin Hruby
- Institute of Macromolecular Chemistry, v.v.i., Academy of Sciences of the Czech Republic, Heyrovsky Sq. 2, 162 06 Prague 6, Czech Republic.
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63
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Chytil P, Koziolová E, Etrych T, Ulbrich K. HPMA Copolymer-Drug Conjugates with Controlled Tumor-Specific Drug Release. Macromol Biosci 2017; 18. [PMID: 28805040 DOI: 10.1002/mabi.201700209] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2017] [Indexed: 11/10/2022]
Abstract
Over the past few decades, numerous polymer drug carrier systems are designed and synthesized, and their properties are evaluated. Many of these systems are based on water-soluble polymer carriers of low-molecular-weight drugs and compounds, e.g., cytostatic agents, anti-inflammatory drugs, or multidrug resistance inhibitors, all covalently bound to a carrier by a biodegradable spacer that enables controlled release of the active molecule to achieve the desired pharmacological effect. Among others, the synthetic polymer carriers based on N-(2-hydroxypropyl) methacrylamide (HPMA) copolymers are some of the most promising carriers for this purpose. This review focuses on advances in the development of HPMA copolymer carriers and their conjugates with anticancer drugs, with triggered drug activation in tumor tissue and especially in tumor cells. Specifically, this review highlights the improvements in polymer drug carrier design with respect to the structure of a spacer to influence controlled drug release and activation, and its impact on the drug pharmacokinetics, enhanced tumor uptake, cellular trafficking, and in vivo antitumor activity.
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Affiliation(s)
- Petr Chytil
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovský Sq. 2, 162 06 Prague 6, Czech Republic
| | - Eva Koziolová
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovský Sq. 2, 162 06 Prague 6, Czech Republic
| | - Tomáš Etrych
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovský Sq. 2, 162 06 Prague 6, Czech Republic
| | - Karel Ulbrich
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovský Sq. 2, 162 06 Prague 6, Czech Republic
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64
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Koziolová E, Goel S, Chytil P, Janoušková O, Barnhart TE, Cai W, Etrych T. A tumor-targeted polymer theranostics platform for positron emission tomography and fluorescence imaging. NANOSCALE 2017; 9:10906-10918. [PMID: 28731080 PMCID: PMC5551419 DOI: 10.1039/c7nr03306k] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Here, we describe a novel polymer platform suitable for efficient diagnostics and potential theranostics based on 89Zr-labeled N-(2-hydroxypropyl)methacrylamide (HPMA)-based copolymer conjugates. A set of polymers differing in molecular weight with either low dispersity or high dispersity were designed and synthesized and their biodistribution in vivo was successfully and precisely observed over 72 h. Moreover, the feasibility of two imaging techniques, fluorescence imaging (FI) and positron emission tomography (PET), was compared using labeled polymer conjugates. Both methods gave comparable results thus showing the enhanced diagnostic potential of the prepared polymer-dye or polymer-chelator-89Zr constructs. The in vivo and ex vivo PET/FI studies indicated that the dispersity and molecular weight of the linear HPMA polymers have a significant influence on the pharmacokinetics of the polymer conjugates. The higher molecular weight and narrower distribution of molecular weights of the polymer carriers improve their pharmacokinetic profile for highly prolonged blood circulation and enhanced tumor uptake. Moreover, the same polymer carrier with the anticancer drug doxorubicin bound by a pH-sensitive hydrazone bond showed higher cytotoxicity and cellular uptake in vitro. Therefore, HPMA copolymers with low dispersity and a molecular weight near the limit of renal filtration can be used as highly efficient polymer carriers of tumor-targeted therapeutics or for theranostics with minimal side effects.
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Affiliation(s)
- Eva Koziolová
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovsky Sq. 2, Prague 6, 162 06, Czech Republic.
| | - Shreya Goel
- Materials Science Program, University of Wisconsin-Madison, Madison, Wisconsin, USA
| | - Petr Chytil
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovsky Sq. 2, Prague 6, 162 06, Czech Republic.
| | - Olga Janoušková
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovsky Sq. 2, Prague 6, 162 06, Czech Republic.
| | - Todd E Barnhart
- Departments of Radiology and Medical Physics, University of Wisconsin-Madison, Madison, Wisconsin, USA
| | - Weibo Cai
- Materials Science Program, University of Wisconsin-Madison, Madison, Wisconsin, USA and Departments of Radiology and Medical Physics, University of Wisconsin-Madison, Madison, Wisconsin, USA and University of Wisconsin Carbone Cancer Center, Madison, Wisconsin, USA
| | - Tomáš Etrych
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovsky Sq. 2, Prague 6, 162 06, Czech Republic.
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65
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Lidický O, Šírová M, Etrych T. HPMA copolymer-based polymer conjugates for the delivery and controlled release of retinoids. Physiol Res 2017; 65:S233-S241. [PMID: 27762589 DOI: 10.33549/physiolres.933425] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
In this paper, we describe the synthesis, physicochemical characterization, drug release kinetics and preliminary biological evaluation of several N-(2-hydroxypropyl)methacrylamide (HPMA)-based polymer-retinoid conjugates designed for solid tumor immunotherapy. The conjugates are supposed to inhibit the immunosuppressive activity of myeloid-derived suppressor cells (MDSC) accumulated in the solid tumor microenvironment. All-trans retinoic acid (ATRA) was derivatized to hydrazide (AtrHy) and then attached to the polymer backbone via a spacer that is stable at the normal pH of blood (7.4) and hydrolytically degradable in mildly acidic environments (e.g. in endosomes or lysosomes, pH~5.0-6.5). Polymer-AtrHy conjugates were designed to achieve prolonged blood circulation and release of the immunomodulator intracellularly or extracellularly in solid tumor tissue. Three types of polymer precursors, differing in the structure of the keto acid-containing side chains, were synthesized. A linkage susceptible to hydrolytic cleavage was formed by the conjugation reaction of the carbonyl group-terminated side chains of the polymer precursors with the hydrazide group of a drug derivative. In vitro incubation of the conjugates in buffers resulted in much faster release of the drugs or their derivatives from the polymer at pH 5.0 than at pH 7.4, with the rate depending on the detailed structure of the spacer. Both the AtrHy derivative and its polymer conjugates showed the ability to induce the differentiation of retinoid-responsive HL-60 cells, thus demonstrating the required biological activity.
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Affiliation(s)
- O Lidický
- Institute of Macromolecular Chemistry of the Czech Academy of Sciences, Prague, Czech Republic.
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66
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Influence of molar mass, dispersity, and type and location of hydrophobic side chain moieties on the critical micellar concentration and stability of amphiphilic HPMA-based polymer drug carriers. Colloid Polym Sci 2017. [DOI: 10.1007/s00396-017-4027-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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67
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Sedlacek O, Kucka J, Monnery BD, Slouf M, Vetrik M, Hoogenboom R, Hruby M. The effect of ionizing radiation on biocompatible polymers: From sterilization to radiolysis and hydrogel formation. Polym Degrad Stab 2017. [DOI: 10.1016/j.polymdegradstab.2017.01.005] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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68
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Bojarová P, Chytil P, Mikulová B, Bumba L, Konefał R, Pelantová H, Krejzová J, Slámová K, Petrásková L, Kotrchová L, Cvačka J, Etrych T, Křen V. Glycan-decorated HPMA copolymers as high-affinity lectin ligands. Polym Chem 2017. [DOI: 10.1039/c7py00271h] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
New conjugates of N-(2-hydroxypropyl) methacrylamide (HPMA) copolymers tethered with chitooligosaccharidic epitopes of varying lengths are potent ligands of wheat germ agglutinin, reaching subnanomolar binding affinities.
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69
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Abstract
Stimuli-responsive polymers respond to a variety of external stimuli, which include optical, electrical, thermal, mechanical, redox, pH, chemical, environmental and biological signals. This paper is concerned with the process of forming such polymers by RAFT polymerization.
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70
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Braunová A, Kostka L, Sivák L, Cuchalová L, Hvězdová Z, Laga R, Filippov S, Černoch P, Pechar M, Janoušková O, Šírová M, Etrych T. Tumor-targeted micelle-forming block copolymers for overcoming of multidrug resistance. J Control Release 2016; 245:41-51. [PMID: 27871991 DOI: 10.1016/j.jconrel.2016.11.020] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2016] [Revised: 10/31/2016] [Accepted: 11/17/2016] [Indexed: 11/17/2022]
Abstract
New amphiphilic diblock polymer nanotherapeutics serving simultaneously as a drug delivery system and an inhibitor of multidrug resistance were designed, synthesized, and evaluated for their physico-chemical and biological characteristics. The amphiphilic character of the diblock polymer, containing a hydrophilic block based on the N-(2-hydroxypropyl)methacrylamide copolymer and a hydrophobic poly(propylene oxide) block (PPO), caused self-assembly into polymer micelles with an increased hydrodynamic radius (Rh of approximately 15nm) in aqueous solutions. Doxorubicin (Dox), as a cytostatic drug, was bound to the diblock polymer through a pH-sensitive hydrazone bond, enabling prolonged circulation in blood, the delivery of Dox into a solid tumor and the subsequent stimuli-sensitive controlled release within the tumor mass and tumor cells at a decreased pH. The applicability of micellar nanotherapeutics as drug carriers was confirmed by an in vivo evaluation using EL4 lymphoma-bearing C57BL/6 mice. We observed significantly higher accumulation of micellar conjugates in a solid tumor because of the EPR effect compared with similar polymer-drug conjugates that do not form micellar structures or with the parent free drug. In addition, highly increased anti-tumor efficacy of the micellar polymer nanotherapeutics, even at a sub-optimal dose, was observed. The presence of PPO in the structure of the diblock polymer ensured, during in vitro tests on human and mouse drug-sensitive and resistant cancer cell lines, the inhibition of P-glycoprotein, one of the most frequently expressed ATP-dependent efflux pump that causes multidrug resistance. In addition, we observed highly increased rate of the uptake of the diblock polymer nanotherapeutics within the cells. We suppose that combination of unique properties based on MDR inhibition, stimuli sensitiveness (pH sensitive activation of drug), improved pharmacokinetics and increased uptake into the cells made the described polymer micelle a good candidate for investigation as potential drug delivery system.
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Affiliation(s)
- Alena Braunová
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovského nám. 2, 162 06 Prague, Czech Republic
| | - Libor Kostka
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovského nám. 2, 162 06 Prague, Czech Republic
| | - Ladislav Sivák
- Institute of Microbiology, Czech Academy of Sciences, Vídeňská 1083, 142 20 Prague, Czech Republic
| | - Lucie Cuchalová
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovského nám. 2, 162 06 Prague, Czech Republic
| | - Zuzana Hvězdová
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovského nám. 2, 162 06 Prague, Czech Republic
| | - Richard Laga
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovského nám. 2, 162 06 Prague, Czech Republic
| | - Sergey Filippov
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovského nám. 2, 162 06 Prague, Czech Republic
| | - Peter Černoch
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovského nám. 2, 162 06 Prague, Czech Republic
| | - Michal Pechar
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovského nám. 2, 162 06 Prague, Czech Republic
| | - Olga Janoušková
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovského nám. 2, 162 06 Prague, Czech Republic
| | - Milada Šírová
- Institute of Microbiology, Czech Academy of Sciences, Vídeňská 1083, 142 20 Prague, Czech Republic
| | - Tomáš Etrych
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovského nám. 2, 162 06 Prague, Czech Republic.
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71
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Lomkova EA, Chytil P, Janoušková O, Mueller T, Lucas H, Filippov SK, Trhlíková O, Aleshunin PA, Skorik YA, Ulbrich K, Etrych T. Biodegradable Micellar HPMA-Based Polymer-Drug Conjugates with Betulinic Acid for Passive Tumor Targeting. Biomacromolecules 2016; 17:3493-3507. [PMID: 27636143 DOI: 10.1021/acs.biomac.6b00947] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Here, we present the synthesis, physicochemical, and preliminary biological characterization of micellar polymer-betulinic acid (BA) conjugates based on N-(2-hydroxypropyl)methacrylamide (HPMA) copolymer carriers, enabling the controlled release of cytotoxic BA derivatives in solid tumors or tumor cells. Various HPMA copolymer conjugates differing in the structure of the spacer between the drug and the carrier were synthesized, all designed for pH-triggered drug release in tumor tissue or tumor cells. The high molecular weight of the micellar conjugates should improve the uptake of the drug in solid tumors due to the Enhanced permeability and retention (EPR) effect. Nevertheless, only the conjugate containing BA with methylated carboxyl groups enabled pH-dependent controlled release in vitro. Moreover, drug release led to the disassembly of the micellar structure, which facilitated elimination of the water-soluble HPMA copolymer carrier from the body by renal filtration. The methylated BA derivative and its polymer conjugate exhibited high cytostatic activity against DLD-1, HT-29, and HeLa carcinoma cell lines and enhanced tumor accumulation in HT-29 xenograft in mice.
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Affiliation(s)
- Ekaterina A Lomkova
- Institute of Macromolecular Chemistry, The Czech Academy of Sciences , Heyrovsky Sq. 2, Prague 6, 162 06, Czech Republic.,St. Petersburg State Chemical Pharmaceutical Academy, 14 Prof. Popov St., St. Petersburg 197022, Russian Federation
| | - Petr Chytil
- Institute of Macromolecular Chemistry, The Czech Academy of Sciences , Heyrovsky Sq. 2, Prague 6, 162 06, Czech Republic
| | - Olga Janoušková
- Institute of Macromolecular Chemistry, The Czech Academy of Sciences , Heyrovsky Sq. 2, Prague 6, 162 06, Czech Republic
| | - Thomas Mueller
- Martin-Luther-University Halle-Wittenberg , Department of Internal Medicine IV, Oncology and Haematology, Ernst-Grube-Str. 40, 06120 Halle (Saale), Germany
| | - Henrike Lucas
- Martin-Luther-University Halle-Wittenberg , Institute of Pharmacy, AG Pharmaceutical Technology, Wolfgang-Langenbeck-Str. 4, 06120 Halle (Saale), Germany
| | - Sergey K Filippov
- Institute of Macromolecular Chemistry, The Czech Academy of Sciences , Heyrovsky Sq. 2, Prague 6, 162 06, Czech Republic
| | - Olga Trhlíková
- Institute of Macromolecular Chemistry, The Czech Academy of Sciences , Heyrovsky Sq. 2, Prague 6, 162 06, Czech Republic
| | - Pavel A Aleshunin
- St. Petersburg State Technological Institute (Technical University), 26 Moskovsky Pr., St. Petersburg, 190013, Russian Federation
| | - Yury A Skorik
- St. Petersburg State Chemical Pharmaceutical Academy, 14 Prof. Popov St., St. Petersburg 197022, Russian Federation.,Institute of Macromolecular Compounds, Russian Academy of Sciences , 31 Bolshoy pr. VO, St. Petersburg 199004, Russian Federation
| | - Karel Ulbrich
- Institute of Macromolecular Chemistry, The Czech Academy of Sciences , Heyrovsky Sq. 2, Prague 6, 162 06, Czech Republic
| | - Tomáš Etrych
- Institute of Macromolecular Chemistry, The Czech Academy of Sciences , Heyrovsky Sq. 2, Prague 6, 162 06, Czech Republic
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72
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Abstract
A tumor-targeting drug delivery system consists of a tumor recognition moiety and a directly linked cytotoxic agent or an agent attached to a water-soluble synthetic polymer carrier through a suitable linker. Conjugation of a drug with a polymer carrier can change its solubility, toxicity, biodistribution, blood clearance and therapeutic specificity. Increased therapeutic specificity of a polymer drug can be achieved by the attachment of a targeting moiety (e.g. a lectin, protein, antibody, or peptide) that specifically interacts with receptors on the target cells. A large number of tumor-specific peptides were described in recent years. After a short introduction, some important examples of peptide-targeted conjugates will be described and discussed.
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Affiliation(s)
| | - R. POLA
- Department of Biomedicinal Polymers, Institute of Macromolecular Chemistry of the Czech Academy of Sciences, Prague, Czech Republic
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73
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Petrova S, Klepac D, Konefał R, Kereïche S, Kováčik L, Filippov SK. Synthesis and Solution Properties of PCL-b-PHPMA Diblock Copolymers Containing Stable Nitroxyl Radicals. Macromolecules 2016. [DOI: 10.1021/acs.macromol.6b01187] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Svetlana Petrova
- Institute of Macromolecular
Chemistry, Academy of Sciences of the Czech Republic, Heyrovsky Sq. 2, 162 06 Prague 6, Czech Republic
| | - Damir Klepac
- Institute of Macromolecular
Chemistry, Academy of Sciences of the Czech Republic, Heyrovsky Sq. 2, 162 06 Prague 6, Czech Republic
| | - Rafał Konefał
- Institute of Macromolecular
Chemistry, Academy of Sciences of the Czech Republic, Heyrovsky Sq. 2, 162 06 Prague 6, Czech Republic
| | - Sami Kereïche
- Institute
of Cellular Biology and Pathology, First Faculty of Medicine, Charles University in Prague, Albertov 4, 128 01 Prague 2, Czech Republic
| | - Lubomír Kováčik
- Institute
of Cellular Biology and Pathology, First Faculty of Medicine, Charles University in Prague, Albertov 4, 128 01 Prague 2, Czech Republic
| | - Sergey K. Filippov
- Institute of Macromolecular
Chemistry, Academy of Sciences of the Czech Republic, Heyrovsky Sq. 2, 162 06 Prague 6, Czech Republic
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74
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Koziolová E, Machová D, Pola R, Janoušková O, Chytil P, Laga R, Filippov SK, Šubr V, Etrych T, Pechar M. Micelle-forming HPMA copolymer conjugates of ritonavir bound via a pH-sensitive spacer with improved cellular uptake designed for enhanced tumor accumulation. J Mater Chem B 2016; 4:7620-7629. [DOI: 10.1039/c6tb02225a] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
We describe design, synthesis, physico-chemical characterization and preliminary biological evaluation of micelle-forming polymer drug conjugates with controlled drug release intended for tumor treatment.
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Affiliation(s)
- E. Koziolová
- Institute of Macromolecular Chemistry
- Czech Academy of Sciences
- Prague 6
- Czech Republic
| | - D. Machová
- Institute of Macromolecular Chemistry
- Czech Academy of Sciences
- Prague 6
- Czech Republic
| | - R. Pola
- Institute of Macromolecular Chemistry
- Czech Academy of Sciences
- Prague 6
- Czech Republic
| | - O. Janoušková
- Institute of Macromolecular Chemistry
- Czech Academy of Sciences
- Prague 6
- Czech Republic
| | - P. Chytil
- Institute of Macromolecular Chemistry
- Czech Academy of Sciences
- Prague 6
- Czech Republic
| | - R. Laga
- Institute of Macromolecular Chemistry
- Czech Academy of Sciences
- Prague 6
- Czech Republic
| | - S. K. Filippov
- Institute of Macromolecular Chemistry
- Czech Academy of Sciences
- Prague 6
- Czech Republic
| | - V. Šubr
- Institute of Macromolecular Chemistry
- Czech Academy of Sciences
- Prague 6
- Czech Republic
| | - T. Etrych
- Institute of Macromolecular Chemistry
- Czech Academy of Sciences
- Prague 6
- Czech Republic
| | - M. Pechar
- Institute of Macromolecular Chemistry
- Czech Academy of Sciences
- Prague 6
- Czech Republic
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75
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pH-responsive polymer–drug conjugates: Design and progress. J Control Release 2016; 222:116-29. [DOI: 10.1016/j.jconrel.2015.12.024] [Citation(s) in RCA: 203] [Impact Index Per Article: 25.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2015] [Revised: 12/11/2015] [Accepted: 12/14/2015] [Indexed: 01/31/2023]
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76
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Anti-Lymphoma Efficacy Comparison of Anti-Cd20 Monoclonal Antibody-Targeted and Non-Targeted Star-Shaped Polymer-Prodrug Conjugates. Molecules 2015; 20:19849-64. [PMID: 26556320 PMCID: PMC6331818 DOI: 10.3390/molecules201119664] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2015] [Revised: 10/20/2015] [Accepted: 10/21/2015] [Indexed: 11/17/2022] Open
Abstract
Here we describe the synthesis and biological properties of two types of star-shaped polymer-doxorubicin conjugates: non-targeted conjugate prepared as long-circulating high-molecular-weight (HMW) polymer prodrugs with a dendrimer core and a targeted conjugate with the anti-CD20 monoclonal antibody (mAb) rituximab (RTX). The copolymers were linked to the dendrimer core or to the reduced mAb via one-point attachment forming a star-shaped structure with a central antibody or dendrimer surrounded by hydrophilic polymer chains. The anticancer drug doxorubicin (DOX) was attached to the N-(2-hydroxypropyl)methacrylamide (HPMA)-based copolymer chain in star polymer systems via a pH-labile hydrazone linkage. Such polymer-DOX conjugates were fairly stable in aqueous solutions at pH 7.4, and the drug was readily released in mildly acidic environments at pH 5–5.5 by hydrolysis of the hydrazone bonds. The cytotoxicity of the polymer conjugates was tested on several CD20-positive or negative human cell lines. Similar levels of in vitro cytotoxicity were observed for all tested polymer conjugates regardless of type or structure. In vivo experiments using primary cell-based murine xenograft models of human diffuse large B-cell lymphoma confirmed the superior anti-lymphoma efficacy of the polymer-bound DOX conjugate when compared with the original drug. Targeting with RTX did not further enhance the anti-lymphoma efficacy relative to the non-targeted star polymer conjugate. Two mechanisms could play roles in these findings: changes in the binding ability to the CD-20 receptor and a significant loss of the immunological properties of RTX in the polymer conjugates.
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77
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CHYTIL P, ŠÍROVÁ M, KOZIOLOVÁ E, ULBRICH K, ŘÍHOVÁ B, ETRYCH T. The Comparison of In Vivo Properties of Water-Soluble HPMA-Based Polymer Conjugates with Doxorubicin Prepared by Controlled RAFT or Free Radical Polymerization. Physiol Res 2015; 64:S41-9. [DOI: 10.33549/physiolres.933137] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Two conjugates of anticancer drug doxorubicin (Dox) covalently bound by the hydrolytically degradable hydrazone bond to the polymer carrier based on water-soluble N-(2-hydroxypropyl) methacrylamide (HPMA) copolymers were synthesized and their properties were compared, namely their behavior in vivo. The polymer carriers differed in dispersity due to different methods of synthesis; the carrier with relatively high dispersity (HD) was prepared by free radical polymerization (Mw = 29 900 g/mol, Ð = 1.75) and the carrier with low dispersity (LD) by controlled radical polymerization (Mw = 30 000 g/mol, Ð = 1.13). Both polymer-Dox conjugates showed prolonged blood circulation and tumor accumulation of the drug in comparison with the free drug; e.g. the tumor-to-blood ratio for the polymer-bound Dox was 3-5 times higher. The LD polymer-Dox conjugate exhibited moderately higher tumor accumulation than the HD one at a dose of 1 x 15 mg Dox (eq.)/kg. Also, their anti-tumor activity did not differ when injected at this dose. However, the increase of the dose to 1 x 25 mg Dox (eq.)/kg resulted in the enhanced therapeutic activity of the conjugates, especially of the LD one with 100 % of long-term survivals. The dispersity of polymer drug carriers influenced the tumor accumulation rate, which affected the overall anti-cancer activity of polymer-drug conjugates.
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Affiliation(s)
- P. CHYTIL
- Institute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic, Prague, Czech Republic
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78
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Laga R, Janoušková O, Ulbrich K, Pola R, Blažková J, Filippov SK, Etrych T, Pechar M. Thermoresponsive Polymer Micelles as Potential Nanosized Cancerostatics. Biomacromolecules 2015; 16:2493-505. [PMID: 26153904 DOI: 10.1021/acs.biomac.5b00764] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
An effective chemotherapy for neoplastic diseases requires the use of drugs that can reach the site of action at a therapeutically efficacious concentration and maintain it at a constant level over a sufficient period of time with minimal side effects. Currently, conjugates of high-molecular-weight hydrophilic polymers or biocompatible nanoparticles with stimuli-releasable anticancer drugs are considered to be some of the most promising systems capable of fulfilling these criteria. In this work, conjugates of thermoresponsive diblock copolymers with the covalently bound cancerostatic drug pirarubicin (PIR) were synthesized as a reversible micelle-forming drug delivery system combining the benefits of the above-mentioned carriers. The diblock copolymer carriers were composed of hydrophilic poly[N-(2-hydroxypropyl)methacrylamide]-based block containing a small amount (∼ 5 mol %) of comonomer units with reactive hydrazide groups and a thermoresponsive poly[2-(2-methoxyethoxy)ethyl methacrylate] block. PIR was attached to the hydrophilic block of the copolymer through the pH-sensitive hydrazone bond designed to be stable in the bloodstream at pH 7.4 but to be degraded in an intratumoral/intracellular environment at pH 5-6. The temperature-induced conformation change of the thermoresponsive block (coil-globule transition), followed by self-assembly of the copolymer into a micellar structure, was controlled by the thermoresponsive block length and PIR content. The cytotoxicity and intracellular transport of the conjugates as well as the release of PIR from the conjugates inside the cells, followed by its accumulation in the cell nuclei, were evaluated in vitro using human colon adenocarcinoma (DLD-1) cell lines. It was demonstrated that the studied conjugates have a great potential to become efficacious in vivo pharmaceuticals.
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Affiliation(s)
- Richard Laga
- Institute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic, v.v.i., Department of Biomedical Polymers, Heyrovský square 2, 162 06 Prague, Czech Republic
| | - Olga Janoušková
- Institute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic, v.v.i., Department of Biomedical Polymers, Heyrovský square 2, 162 06 Prague, Czech Republic
| | - Karel Ulbrich
- Institute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic, v.v.i., Department of Biomedical Polymers, Heyrovský square 2, 162 06 Prague, Czech Republic
| | - Robert Pola
- Institute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic, v.v.i., Department of Biomedical Polymers, Heyrovský square 2, 162 06 Prague, Czech Republic
| | - Jana Blažková
- Institute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic, v.v.i., Department of Biomedical Polymers, Heyrovský square 2, 162 06 Prague, Czech Republic
| | - Sergey K Filippov
- Institute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic, v.v.i., Department of Biomedical Polymers, Heyrovský square 2, 162 06 Prague, Czech Republic
| | - Tomáš Etrych
- Institute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic, v.v.i., Department of Biomedical Polymers, Heyrovský square 2, 162 06 Prague, Czech Republic
| | - Michal Pechar
- Institute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic, v.v.i., Department of Biomedical Polymers, Heyrovský square 2, 162 06 Prague, Czech Republic
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79
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Chytil P, Koziolová E, Janoušková O, Kostka L, Ulbrich K, Etrych T. Synthesis and Properties of Star HPMA Copolymer Nanocarriers Synthesised by RAFT Polymerisation Designed for Selective Anticancer Drug Delivery and Imaging. Macromol Biosci 2015; 15:839-50. [PMID: 25731143 DOI: 10.1002/mabi.201400510] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2015] [Revised: 01/24/2015] [Indexed: 01/08/2023]
Abstract
High-molecular-weight star polymer drug nanocarriers intended for the treatment and/or visualisation of solid tumours were synthesised, and their physico-chemical and preliminary in vitro biological properties were determined. The water-soluble star polymer carriers were prepared by the grafting of poly(amido amine) (PAMAM) dendrimers by hetero-telechelic N-(2-hydroxypropyl)methacrylamide (HPMA) copolymers, synthesised by the controlled radical Reversible Addition Fragmentation chain Transfer (RAFT) polymerisation. The well-defined star copolymers with Mw values ranging from 2 · 10(5) to 6 · 10(5) showing a low dispersity (approximately 1.2) were prepared in a high yield. A model anticancer drug, doxorubicin, was bound to the star polymer through a hydrazone bond, enabling the pH-controlled drug release in the target tumour tissue. The activated polymer arm ends of the star copolymer carrier enable a one-point attachment for the targeting ligands and/or a labelling moiety. In this study, the model TAMRA fluorescent dye was used to prove the feasibility of the polymer carrier visualisation by optical imaging in vitro. The tailor-made structure of the star polymer carriers should facilitate the synthesis of targeted polymer-drug conjugates, even polymer theranostics, for simultaneous tumour drug delivery and imaging.
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Affiliation(s)
- Petr Chytil
- Institute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic, v.v.i. Heyrovsk, ý, Sq. 2, 162 06, Prague 6, Czech Republic.
| | - Eva Koziolová
- Institute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic, v.v.i. Heyrovsk, ý, Sq. 2, 162 06, Prague 6, Czech Republic
| | - Olga Janoušková
- Institute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic, v.v.i. Heyrovsk, ý, Sq. 2, 162 06, Prague 6, Czech Republic
| | - Libor Kostka
- Institute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic, v.v.i. Heyrovsk, ý, Sq. 2, 162 06, Prague 6, Czech Republic
| | - Karel Ulbrich
- Institute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic, v.v.i. Heyrovsk, ý, Sq. 2, 162 06, Prague 6, Czech Republic
| | - Tomáš Etrych
- Institute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic, v.v.i. Heyrovsk, ý, Sq. 2, 162 06, Prague 6, Czech Republic
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80
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Sedláček O, Kučka J, Hrubý M. Optimized protocol for the radioiodination of hydrazone-type polymer drug delivery systems. Appl Radiat Isot 2015; 95:129-134. [DOI: 10.1016/j.apradiso.2014.10.016] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2014] [Revised: 09/12/2014] [Accepted: 10/12/2014] [Indexed: 10/24/2022]
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81
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Yu Y, Chen CK, Law WC, Sun H, Prasad PN, Cheng C. A degradable brush polymer–drug conjugate for pH-responsive release of doxorubicin. Polym Chem 2015. [DOI: 10.1039/c4py01194e] [Citation(s) in RCA: 77] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We report the synthesis, characterization andin vitroassessment of a degradable brush polymer–drug conjugate which can enable acid-triggered release of doxorubicin (DOX).
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Affiliation(s)
- Yun Yu
- Department of Chemical and Biological Engineering
- University at Buffalo
- The State University of New York
- Buffalo
- USA
| | - Chih-Kuang Chen
- Department of Chemical and Biological Engineering
- University at Buffalo
- The State University of New York
- Buffalo
- USA
| | - Wing-Cheung Law
- Institute for Lasers
- Photonics and Biophotonics
- and Department of Chemistry
- University at Buffalo
- The State University of New York
| | - Haotian Sun
- Department of Chemical and Biological Engineering
- University at Buffalo
- The State University of New York
- Buffalo
- USA
| | - Paras N. Prasad
- Institute for Lasers
- Photonics and Biophotonics
- and Department of Chemistry
- University at Buffalo
- The State University of New York
| | - Chong Cheng
- Department of Chemical and Biological Engineering
- University at Buffalo
- The State University of New York
- Buffalo
- USA
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82
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Moraes J, Simionca IM, Ketari H, Klok HA. Avoiding compositional drift during the RAFT copolymerization of N-(2-hydroxypropyl)methacrylamide and N-acryloxysuccinimide: towards uniform platforms for post-polymerization modification. Polym Chem 2015. [DOI: 10.1039/c5py00253b] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Compositionally uniform copolymers: avoiding compositional drift during RAFT copolymerization by controlling monomer feed ratio and conversion.
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Affiliation(s)
- John Moraes
- École Polytechnique Fédérale de Lausanne (EPFL)
- Institut des Matériaux and Institut des Sciences et Ingénierie Chimiques
- Laboratoire des Polymères
- Lausanne
- Switzerland
| | - Ioana-Maria Simionca
- École Polytechnique Fédérale de Lausanne (EPFL)
- Institut des Matériaux and Institut des Sciences et Ingénierie Chimiques
- Laboratoire des Polymères
- Lausanne
- Switzerland
| | - Hedi Ketari
- École Polytechnique Fédérale de Lausanne (EPFL)
- Institut des Matériaux and Institut des Sciences et Ingénierie Chimiques
- Laboratoire des Polymères
- Lausanne
- Switzerland
| | - Harm-Anton Klok
- École Polytechnique Fédérale de Lausanne (EPFL)
- Institut des Matériaux and Institut des Sciences et Ingénierie Chimiques
- Laboratoire des Polymères
- Lausanne
- Switzerland
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83
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Sedlacek O, Kucka J, Mattova J, Parizek M, Studenovsky M, Zadinova M, Pouckova P, Hruby M. Multistage-targeted pH-responsive polymer conjugate of Auger electron emitter: Optimized design and in vivo activity. Eur J Pharm Sci 2014; 63:216-25. [DOI: 10.1016/j.ejps.2014.07.012] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2014] [Revised: 07/17/2014] [Accepted: 07/31/2014] [Indexed: 12/31/2022]
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84
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Šubr V, Sivák L, Koziolová E, Braunová A, Pechar M, Strohalm J, Kabešová M, Říhová B, Ulbrich K, Kovář M. Synthesis of Poly[N-(2-hydroxypropyl)methacrylamide] Conjugates of Inhibitors of the ABC Transporter That Overcome Multidrug Resistance in Doxorubicin-Resistant P388 Cells in Vitro. Biomacromolecules 2014; 15:3030-43. [DOI: 10.1021/bm500649q] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- V. Šubr
- Institute
of Macromolecular Chemistry, Academy of Sciences of the Czech Republic v.v.i., Heyrovsky Sq. 2, 162 06 Prague 6, Czech Republic
| | - L. Sivák
- Institute
of Microbiology, Academy of Sciences of the Czech Republic v.v.i., Vídeňská 1083, 142 20 Prague 4, Czech Republic
| | - E. Koziolová
- Institute
of Macromolecular Chemistry, Academy of Sciences of the Czech Republic v.v.i., Heyrovsky Sq. 2, 162 06 Prague 6, Czech Republic
| | - A. Braunová
- Institute
of Macromolecular Chemistry, Academy of Sciences of the Czech Republic v.v.i., Heyrovsky Sq. 2, 162 06 Prague 6, Czech Republic
| | - M. Pechar
- Institute
of Macromolecular Chemistry, Academy of Sciences of the Czech Republic v.v.i., Heyrovsky Sq. 2, 162 06 Prague 6, Czech Republic
| | - J. Strohalm
- Institute
of Macromolecular Chemistry, Academy of Sciences of the Czech Republic v.v.i., Heyrovsky Sq. 2, 162 06 Prague 6, Czech Republic
| | - M. Kabešová
- Institute
of Microbiology, Academy of Sciences of the Czech Republic v.v.i., Vídeňská 1083, 142 20 Prague 4, Czech Republic
| | - B. Říhová
- Institute
of Microbiology, Academy of Sciences of the Czech Republic v.v.i., Vídeňská 1083, 142 20 Prague 4, Czech Republic
| | - K. Ulbrich
- Institute
of Macromolecular Chemistry, Academy of Sciences of the Czech Republic v.v.i., Heyrovsky Sq. 2, 162 06 Prague 6, Czech Republic
| | - M. Kovář
- Institute
of Microbiology, Academy of Sciences of the Czech Republic v.v.i., Vídeňská 1083, 142 20 Prague 4, Czech Republic
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85
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Tappertzhofen K, Bednarczyk M, Koynov K, Bros M, Grabbe S, Zentel R. Toward Anticancer Immunotherapeutics: Well-Defined Polymer-Antibody Conjugates for Selective Dendritic Cell Targeting. Macromol Biosci 2014; 14:1444-57. [DOI: 10.1002/mabi.201400190] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2014] [Revised: 05/22/2014] [Indexed: 11/05/2022]
Affiliation(s)
- Kristof Tappertzhofen
- Institute of Organic Chemistry; Johannes Gutenberg-University; Duesbergweg 10-14 55128 Mainz Germany
| | - Monika Bednarczyk
- Department of Dermatology; University Medical Center of the Johannes Gutenberg-University; Langenbeckstrasse 1 55131 Mainz Germany
| | - Kaloian Koynov
- Max Planck Institute for Polymer Research; Ackermannweg 10 55128 Mainz Germany
| | - Matthias Bros
- Department of Dermatology; University Medical Center of the Johannes Gutenberg-University; Langenbeckstrasse 1 55131 Mainz Germany
| | - Stephan Grabbe
- Department of Dermatology; University Medical Center of the Johannes Gutenberg-University; Langenbeckstrasse 1 55131 Mainz Germany
- Research Center Immunology (FZI); University Medical Center of the Johannes Gutenberg-University; Langenbeckstrasse 1 55131 Mainz Germany
| | - Rudolf Zentel
- Institute of Organic Chemistry; Johannes Gutenberg-University; Duesbergweg 10-14 55128 Mainz Germany
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86
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Nuhn L, Barz M, Zentel R. New Perspectives of HPMA-based Copolymers Derived by Post-Polymerization Modification. Macromol Biosci 2014; 14:607-18. [DOI: 10.1002/mabi.201400028] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2014] [Revised: 02/12/2014] [Indexed: 12/25/2022]
Affiliation(s)
- Lutz Nuhn
- Institute of Organic Chemistry; Johannes Gutenberg-University Mainz; Duesbergweg 10-15 55128 Mainz Germany
| | - Matthias Barz
- Institute of Organic Chemistry; Johannes Gutenberg-University Mainz; Duesbergweg 10-15 55128 Mainz Germany
| | - Rudolf Zentel
- Institute of Organic Chemistry; Johannes Gutenberg-University Mainz; Duesbergweg 10-15 55128 Mainz Germany
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87
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Pola R, Braunová A, Laga R, Pechar M, Ulbrich K. Click chemistry as a powerful and chemoselective tool for the attachment of targeting ligands to polymer drug carriers. Polym Chem 2014. [DOI: 10.1039/c3py01376f] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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88
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Chytil P, Hoffmann S, Schindler L, Kostka L, Ulbrich K, Caysa H, Mueller T, Mäder K, Etrych T. Dual fluorescent HPMA copolymers for passive tumor targeting with pH-sensitive drug release II: Impact of release rate on biodistribution. J Control Release 2013; 172:504-12. [DOI: 10.1016/j.jconrel.2013.05.008] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2013] [Revised: 04/29/2013] [Accepted: 05/06/2013] [Indexed: 01/21/2023]
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89
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Dhal PK, Polomoscanik SC, Gianolio DA, Starremans PG, Busch M, Alving K, Chen B, Miller RJ. Well-Defined Aminooxy Terminated N-(2-Hydroxypropyl) Methacrylamide Macromers for Site Specific Bioconjugation of Glycoproteins. Bioconjug Chem 2013; 24:865-77. [DOI: 10.1021/bc300472e] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Pradeep K. Dhal
- Polymer & Biomaterial R&D, Sanofi-Genzyme R&D Center, Genzyme Corporation—A Sanofi Company, 270 Albany Street, Cambridge, Massachusetts 02139, United States
| | - Steven C. Polomoscanik
- Polymer & Biomaterial R&D, Sanofi-Genzyme R&D Center, Genzyme Corporation—A Sanofi Company, 270 Albany Street, Cambridge, Massachusetts 02139, United States
| | - Diego A. Gianolio
- Polymer & Biomaterial R&D, Sanofi-Genzyme R&D Center, Genzyme Corporation—A Sanofi Company, 270 Albany Street, Cambridge, Massachusetts 02139, United States
| | - Patrick G. Starremans
- Polymer & Biomaterial R&D, Sanofi-Genzyme R&D Center, Genzyme Corporation—A Sanofi Company, 270 Albany Street, Cambridge, Massachusetts 02139, United States
| | - Michelle Busch
- Polymer & Biomaterial R&D, Sanofi-Genzyme R&D Center, Genzyme Corporation—A Sanofi Company, 270 Albany Street, Cambridge, Massachusetts 02139, United States
| | - Kim Alving
- Polymer & Biomaterial R&D, Sanofi-Genzyme R&D Center, Genzyme Corporation—A Sanofi Company, 270 Albany Street, Cambridge, Massachusetts 02139, United States
| | - Bo Chen
- Polymer & Biomaterial R&D, Sanofi-Genzyme R&D Center, Genzyme Corporation—A Sanofi Company, 270 Albany Street, Cambridge, Massachusetts 02139, United States
| | - Robert J. Miller
- Polymer & Biomaterial R&D, Sanofi-Genzyme R&D Center, Genzyme Corporation—A Sanofi Company, 270 Albany Street, Cambridge, Massachusetts 02139, United States
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90
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Laga R, Pola R, Ulbrich K, Horřejší M, Sieglová I, Král V, Fábry M, Pechar M. Avidin-conjugated polymers with monobiotinylated antibody fragments: A new strategy for the noncovalent attachment of recombinant proteins for polymer therapeutics. J BIOACT COMPAT POL 2013. [DOI: 10.1177/0883911513486225] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
The high affinity and specificity between avidin and biotin were employed to bind a recombinant single-chain antibody fragment to synthetic hydrophilic polymer drug carriers. Two semitelechelic polymers, based on poly(ethylene glycol) and poly[ N-(2-hydroxypropyl)methacrylamide], each containing a single thiol end group, were conjugated to dithiopyridyl-modified avidin. The biotinylated recombinant single-chain antibody fragment of the M75 antibody was then noncovalently bound to the polymer-avidin conjugates. The recombinant protein was chosen as a targeting ligand against carbonic anhydrase IX, a marker overexpressed by tumor cells of various human carcinomas. The antigen-binding affinity of the polymer–single-chain antibody fragment complex was confirmed by enzyme-linked immuno sorbent assay (ELISA). This approach provides an original, nondestructive way of preparing supramolecular systems intended for targeted delivery of therapeutics utilizing modern chemical procedures, including reversible addition–fragmentation chain-transfer polymerization and recombinant DNA techniques.
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Affiliation(s)
- Richard Laga
- Institute of Macromolecular Chemistry, v.v.i., Academy of Sciences of the Czech Republic, Prague, Czech Republic
| | - Robert Pola
- Institute of Macromolecular Chemistry, v.v.i., Academy of Sciences of the Czech Republic, Prague, Czech Republic
| | - Karel Ulbrich
- Institute of Macromolecular Chemistry, v.v.i., Academy of Sciences of the Czech Republic, Prague, Czech Republic
| | - Magda Horřejší
- Institute of Molecular Genetics, v.v.i., Academy of Sciences of the Czech Republic, Prague, Czech Republic
| | - Irena Sieglová
- Institute of Molecular Genetics, v.v.i., Academy of Sciences of the Czech Republic, Prague, Czech Republic
| | - Vlastimil Král
- Institute of Molecular Genetics, v.v.i., Academy of Sciences of the Czech Republic, Prague, Czech Republic
| | - Milan Fábry
- Institute of Molecular Genetics, v.v.i., Academy of Sciences of the Czech Republic, Prague, Czech Republic
| | - Michal Pechar
- Institute of Macromolecular Chemistry, v.v.i., Academy of Sciences of the Czech Republic, Prague, Czech Republic
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91
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Šubr V, Kostka L, Strohalm J, Etrych T, Ulbrich K. Synthesis of Well-Defined Semitelechelic Poly[N-(2-hydroxypropyl)methacrylamide] Polymers with Functional Group at the α-End of the Polymer Chain by RAFT Polymerization. Macromolecules 2013. [DOI: 10.1021/ma400042u] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- V. Šubr
- Institute
of Macromolecular Chemistry, Academy of Sciences of the Czech Republic, v.v.i.,
Heyrovsky Sq. 2, 162 06 Prague 6, Czech Republic
| | - L. Kostka
- Institute
of Macromolecular Chemistry, Academy of Sciences of the Czech Republic, v.v.i.,
Heyrovsky Sq. 2, 162 06 Prague 6, Czech Republic
| | - J. Strohalm
- Institute
of Macromolecular Chemistry, Academy of Sciences of the Czech Republic, v.v.i.,
Heyrovsky Sq. 2, 162 06 Prague 6, Czech Republic
| | - T. Etrych
- Institute
of Macromolecular Chemistry, Academy of Sciences of the Czech Republic, v.v.i.,
Heyrovsky Sq. 2, 162 06 Prague 6, Czech Republic
| | - K. Ulbrich
- Institute
of Macromolecular Chemistry, Academy of Sciences of the Czech Republic, v.v.i.,
Heyrovsky Sq. 2, 162 06 Prague 6, Czech Republic
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92
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Pola R, Laga R, Ulbrich K, Sieglová I, Král V, Fábry M, Kabešová M, Kovář M, Pechar M. Polymer Therapeutics with a Coiled Coil Motif Targeted against Murine BCL1 Leukemia. Biomacromolecules 2013; 14:881-9. [DOI: 10.1021/bm3019592] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Robert Pola
- Institute of Macromolecular
Chemistry, Academy of Sciences of the Czech Republic, v.v.i., Heyrovského nám. 2, 162 06, Prague 6, Czech
Republic
| | - Richard Laga
- Institute of Macromolecular
Chemistry, Academy of Sciences of the Czech Republic, v.v.i., Heyrovského nám. 2, 162 06, Prague 6, Czech
Republic
| | - Karel Ulbrich
- Institute of Macromolecular
Chemistry, Academy of Sciences of the Czech Republic, v.v.i., Heyrovského nám. 2, 162 06, Prague 6, Czech
Republic
| | - Irena Sieglová
- Institute of Molecular
Genetics, Academy of Sciences of the Czech Republic, v.v.i.,
Flemingovo nám. 2, 166 10 Prague 6, Czech Republic
| | - Vlastimil Král
- Institute of Molecular
Genetics, Academy of Sciences of the Czech Republic, v.v.i.,
Flemingovo nám. 2, 166 10 Prague 6, Czech Republic
| | - Milan Fábry
- Institute of Molecular
Genetics, Academy of Sciences of the Czech Republic, v.v.i.,
Flemingovo nám. 2, 166 10 Prague 6, Czech Republic
| | - Martina Kabešová
- Institute of Microbiology, Academy of Sciences of the Czech Republic, v.v.i.,
Vídeňská 1083, 142 20 Prague 4, Czech Republic
| | - Marek Kovář
- Institute of Microbiology, Academy of Sciences of the Czech Republic, v.v.i.,
Vídeňská 1083, 142 20 Prague 4, Czech Republic
| | - Michal Pechar
- Institute of Macromolecular
Chemistry, Academy of Sciences of the Czech Republic, v.v.i., Heyrovského nám. 2, 162 06, Prague 6, Czech
Republic
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93
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Binauld S, Stenzel MH. Acid-degradable polymers for drug delivery: a decade of innovation. Chem Commun (Camb) 2013; 49:2082-102. [DOI: 10.1039/c2cc36589h] [Citation(s) in RCA: 312] [Impact Index Per Article: 28.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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94
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Pan YJ, Li D, Jin S, Wei C, Wu KY, Guo J, Wang CC. Folate-conjugated poly(N-(2-hydroxypropyl)methacrylamide-co-methacrylic acid) nanohydrogels with pH/redox dual-stimuli response for controlled drug release. Polym Chem 2013. [DOI: 10.1039/c3py00249g] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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95
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Abd Karim KJ, Binauld S, Scarano W, Stenzel MH. Macromolecular platinum-drugs based on statistical and block copolymer structures and their DNA binding ability. Polym Chem 2013; 4:5542. [DOI: 10.1039/c3py00606a] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
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96
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Tappertzhofen K, Metz VV, Hubo M, Barz M, Postina R, Jonuleit H, Zentel R. Synthesis of Maleimide-Functionalyzed HPMA-Copolymers and in vitro Characterization of the aRAGE- and Human Immunoglobulin (huIgG)-Polymer Conjugates. Macromol Biosci 2012; 13:203-14. [DOI: 10.1002/mabi.201200344] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2012] [Revised: 10/20/2012] [Indexed: 11/05/2022]
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97
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Kelsch A, Tomcin S, Rausch K, Barz M, Mailänder V, Schmidt M, Landfester K, Zentel R. HPMA Copolymers as Surfactants in the Preparation of Biocompatible Nanoparticles for Biomedical Application. Biomacromolecules 2012. [DOI: 10.1021/bm301453g] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Annette Kelsch
- Institute of Organic
Chemistry, Johannes Gutenberg-University Mainz, Duesbergweg 10-14, 55128 Mainz, Germany
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz,
Germany
| | - Stephanie Tomcin
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz,
Germany
| | - Kristin Rausch
- Institute
of Physical
Chemistry, Johannes Gutenberg-University Mainz, Jakob-Welder-Weg 11, 55128 Mainz, Germany
| | - Matthias Barz
- Institute of Organic
Chemistry, Johannes Gutenberg-University Mainz, Duesbergweg 10-14, 55128 Mainz, Germany
| | - Volker Mailänder
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz,
Germany
- III. Medical Clinic, University Medicine of the Johannes Gutenberg University, Langenbeckstr. 1, 55131 Mainz, Germany
| | - Manfred Schmidt
- Institute
of Physical
Chemistry, Johannes Gutenberg-University Mainz, Jakob-Welder-Weg 11, 55128 Mainz, Germany
| | - Katharina Landfester
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz,
Germany
| | - Rudolf Zentel
- Institute of Organic
Chemistry, Johannes Gutenberg-University Mainz, Duesbergweg 10-14, 55128 Mainz, Germany
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98
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Combination chemotherapy using core-shell nanoparticles through the self-assembly of HPMA-based copolymers and degradable polyester. J Control Release 2012. [PMID: 23178950 DOI: 10.1016/j.jconrel.2012.11.009] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The preparation of core-shell polymeric nanoparticles simultaneously loaded with docetaxel (DTXL) and doxorubicin (DOX) is reported herein. The self-assembly of the aliphatic biodegradable copolyester PBS/PBDL (poly(butylene succinate-co-butylene dilinoleate)) and HPMA-based copolymers (N-(2-hydroxypropyl)methacrylamide-based copolymers) hydrophobically modified by the incorporation of cholesterol led to the formation of narrow-size-distributed (PDI<0.10) sub-200-nm polymeric nanoparticles suitable for passive tumor-targeting drug delivery based on the size-dependent EPR (enhanced permeability and retention) effect. The PHPMA provided to the self-assembled nanoparticle stability against aggregation as evaluated in vitro. The highly hydrophobic drug docetaxel (DTXL) was physically entrapped within the PBS/PBDL copolyester core and the hydrophilic drug doxorubicin hydrochloride (DOX·HCl) was chemically conjugated to the reactive PHPMA copolymer shell via hydrazone bonding that allowed its pH-sensitive release. This strategy enabled the combination chemotherapy by the simultaneous DOX and DTXL drug delivery. The structure of the nanoparticles was characterized in detail using static (SLS), dynamic (DLS) and electrophoretic (ELS) light scattering besides transmission electron microscopy (TEM). The use of nanoparticles simultaneously loaded with DTXL and DOX provided a more efficient suppression of tumor-cell growth in mice bearing EL-4 T cell lymphoma when compared to the effect of nanoparticles loaded with either DTXL or DOX separately. Additionally, the obtained self-assembled nanoparticles enable further development of targeting strategies based on the use of multiple ligands attached to an HPMA copolymer on the particle surface for simultaneous passive and active targeting and different combination therapies.
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99
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Dong DW, Tong SW, Qi XR. Comparative studies of polyethylenimine-doxorubicin conjugates with pH-sensitive and pH-insensitive linkers. J Biomed Mater Res A 2012; 101:1336-44. [DOI: 10.1002/jbm.a.34450] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2012] [Revised: 08/24/2012] [Accepted: 09/11/2012] [Indexed: 01/15/2023]
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Zhou Y, Kopeček J. Biological rationale for the design of polymeric anti-cancer nanomedicines. J Drug Target 2012; 21:1-26. [PMID: 23009337 DOI: 10.3109/1061186x.2012.723213] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Understanding the biological features of cancer is the basis for designing efficient anti-cancer nanomedicines. On one hand, important therapeutic targets for anti-cancer nanomedicines need to be identified based on cancer biology, to address the unmet medical needs. On the other hand, the unique pathophysiological properties of cancer affect the delivery and interactions of anti-cancer nanomedicines with their therapeutic targets. This review discusses several critical cancer biological properties that challenge the currently available anti-cancer treatments, including cancer heterogeneity and cancer stem cells, the complexcity of tumor microenvironment, and the inevitable cancer metastases. In addition, the biological bases of the enhanced permeability and retention (EPR) effect and tumor-specific active targeting, as well as the physiological barriers for passive and active targeting of anti-cancer nanomedicines are covered in this review. Correspondingly, possible nanomedicine strategies to target cancer heterogeneity, cancer stem cells and metastases, to overcome the challenges related to tumor passive targeting and tumor penetration, and to improve the interactions of therapeutic payloads with the therapeutic targets are discussed. The focus is mainly on the designs of polymeric anti-cancer nanomedicines.
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Affiliation(s)
- Yan Zhou
- Department of Pharmaceutics and Pharmaceutical Chemistry, University of Utah, Salt Lake City, UT 84112, USA
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