1
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Albuquerque T, Neves AR, Paul M, Biswas S, Vuelta E, García-Tuñón I, Sánchez-Martin M, Quintela T, Costa D. A Potential Effect of Circadian Rhythm in the Delivery/Therapeutic Performance of Paclitaxel-Dendrimer Nanosystems. J Funct Biomater 2023; 14:362. [PMID: 37504857 PMCID: PMC10381694 DOI: 10.3390/jfb14070362] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2023] [Revised: 07/05/2023] [Accepted: 07/09/2023] [Indexed: 07/29/2023] Open
Abstract
The circadian clock controls behavior and physiology. Presently, there is clear evidence of a connection between this timing system and cancer development/progression. Moreover, circadian rhythm consideration in the therapeutic action of anticancer drugs can enhance the effectiveness of cancer therapy. Nanosized drug delivery systems (DDS) have been demonstrated to be suitable engineered platforms for drug targeted/sustained release. The investigation of the chronobiology-nanotechnology relationship, i.e., timing DDS performance according to a patient's circadian rhythm, may greatly improve cancer clinical outcomes. In the present work, we synthesized nanosystems based on an octa-arginine (R8)-modified poly(amidoamine) dendrimer conjugated with the anticancer drug paclitaxel (PTX), G4-PTX-R8, and its physicochemical properties were revealed to be appropriate for in vitro delivery. The influence of the circadian rhythm on its cellular internalization efficiency and potential therapeutic effect on human cervical cancer cells (HeLa) was studied. Cell-internalized PTX and caspase activity, as a measure of induced apoptosis, were monitored for six time points. Higher levels of PTX and caspase-3/9 were detected at T8, suggesting that the internalization of G4-PTX-R8 into HeLa cells and apoptosis are time-specific/-regulated phenomena. For a deeper understanding, the clock protein Bmal1-the main regulator of rhythmic activity, was silenced by Clustered Regularly Interspaced Short Palindromic Repeats (CRISPR) technology. Bmal1 silencing was revealed to have an impact on both PTX release and caspase activity, evidencing a potential role for circadian rhythm on drug delivery/therapeutic effect mediated by G4-PTX-R8.
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Affiliation(s)
- Tânia Albuquerque
- CICS-UBI-Health Sciences Research Centre, Universidade da Beira Interior, Avenida Infante D. Henrique, 6200-506 Covilhã, Portugal
| | - Ana Raquel Neves
- CICS-UBI-Health Sciences Research Centre, Universidade da Beira Interior, Avenida Infante D. Henrique, 6200-506 Covilhã, Portugal
| | - Milan Paul
- Department of Pharmacy, Nanomedicine Research Laboratory, Birla Institute of Technology & Science-Pilani, Hyderabad Campus, Jawahar Nagar, Medchal, Hyderabad 500078, Telangana, India
| | - Swati Biswas
- Department of Pharmacy, Nanomedicine Research Laboratory, Birla Institute of Technology & Science-Pilani, Hyderabad Campus, Jawahar Nagar, Medchal, Hyderabad 500078, Telangana, India
| | - Elena Vuelta
- Servicio de Transgénesis, Nucleus, Universidad de Salamanca, 37008 Salamanca, Spain
- IBSAL, Instituto de Investigación Biomédica de Salamanca, 37007 Salamanca, Spain
- Departamento de Medicina, Universidad de Salamanca, 37008 Salamanca, Spain
| | - Ignacio García-Tuñón
- IBSAL, Instituto de Investigación Biomédica de Salamanca, 37007 Salamanca, Spain
| | - Manuel Sánchez-Martin
- Servicio de Transgénesis, Nucleus, Universidad de Salamanca, 37008 Salamanca, Spain
- Departamento de Medicina, Universidad de Salamanca, 37008 Salamanca, Spain
- Unidad de Diagnóstico Molecular y Celular del Cáncer, Instituto Biología Molecular y Celular del Cáncer (USAL/CSIC), 37007 Salamanca, Spain
| | - Telma Quintela
- CICS-UBI-Health Sciences Research Centre, Universidade da Beira Interior, Avenida Infante D. Henrique, 6200-506 Covilhã, Portugal
- UDI-IPG-Unidade de Investigação para o Desenvolvimento do Interior, Instituto Politécnico da Guarda, 6300-559 Guarda, Portugal
| | - Diana Costa
- CICS-UBI-Health Sciences Research Centre, Universidade da Beira Interior, Avenida Infante D. Henrique, 6200-506 Covilhã, Portugal
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2
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Nguyen A, Chao PH, Ong CY, Rouhollahi E, Fayez NAL, Lin L, Brown JI, Böttger R, Page B, Wong H, Li SD. Chemically engineering the drug release rate of a PEG-paclitaxel conjugate using click and steric hindrance chemistries for optimal efficacy. Biomaterials 2022; 289:121735. [DOI: 10.1016/j.biomaterials.2022.121735] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Revised: 07/27/2022] [Accepted: 08/06/2022] [Indexed: 11/29/2022]
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3
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Polysorbate-Based Drug Formulations for Brain-Targeted Drug Delivery and Anticancer Therapy. APPLIED SCIENCES-BASEL 2021. [DOI: 10.3390/app11199336] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Polysorbates (PSs) are synthetic nonionic surfactants consisting of polyethoxy sorbitan fatty acid esters. PSs have been widely employed as emulsifiers and stabilizers in various drug formulations and food additives. Recently, various PS-based formulations have been developed for safe and efficient drug delivery. This review introduces the general features of PSs and PS-based drug carriers, summarizes recent progress in the development of PS-based drug formulations, and discusses the physicochemical properties, biological safety, P-glycoprotein inhibitory properties, and therapeutic applications of PS-based drug formulations. Additionally, recent advances in brain-targeted drug delivery using PS-based drug formulations have been highlighted. This review will help researchers understand the potential of PSs as effective drug formulation agents.
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4
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Development of Tailor-Made Dendrimer Ternary Complexes for Drug/Gene Co-Delivery in Cancer. Pharmaceutics 2021; 13:pharmaceutics13081256. [PMID: 34452218 PMCID: PMC8401607 DOI: 10.3390/pharmaceutics13081256] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Revised: 08/12/2021] [Accepted: 08/12/2021] [Indexed: 12/03/2022] Open
Abstract
Cancer gene therapy, mediated by non-viral systems, remains a major research focus. To contribute to this field, in this work we reported on the development of dendrimer drug/gene ternary complexes. This innovative approach explored the great capacity of both polyamidoamine (PAMAM)-paclitaxel (PTX) conjugate and polyethylenimine (PEI) polymers to complex a p53-encoding plasmid DNA (pDNA), highlighting the utility of considering two compacting agents. The pDNA complexation capacity has been investigated as function of the nitrogen to phosphate groups ratio (N/P), which revealed to be a tailoring parameter. The physicochemical properties of the conceived ternary complexes were revealed and were found to be promising for cellular transfection. Furthermore, the formulated co-delivery systems demonstrated to be biocompatible. The ternary systems were able of cellular internalization and payload intracellular release. Confocal microscopy studies showed the co-localization of stained pDNA with the nucleus of cancer cells, after transfection mediated by these carriers. From this achievement, p53 gene expression occurred with the production of protein. Moreover, the activation of caspase-3 indicated apoptosis of cancer cells. This work represents a great progress on the design of dendrimer drug/gene co-delivery systems towards a more efficient cancer therapy. In this way, it instigates further in vitro studies concerning the evaluation of their therapeutic potential, expectedly supported by the synergistic effect, in tumoral cells.
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5
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Chowdhury M, Kumar Das P. Paclitaxel-Loaded Biotinylated Fe 2+-Doped Carbon Dot: Combination Therapy in Cancer Treatment. ACS APPLIED BIO MATERIALS 2021; 4:5132-5144. [PMID: 35006997 DOI: 10.1021/acsabm.1c00348] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The present research work delineates the design and preparation of covalently tailored biotinylated Fe2+-doped carbon dots (FCDb). The FCDb was successfully used as a pro-drug activator, diagnostic probe, and target-specific delivery vehicle for anticancer drug paclitaxel in pro-drug-free drug combination therapy of cancer treatment. Fe2+-doped carbon dot was synthesized via the hydrothermal method (FCD). The surface of FCD was covalently modified with cancer cell targeting ligand biotin (FCDb). Microscopic and spectroscopic methods were used to characterize aqueous soluble FCD and FCDb. Both FCD and FCDb emit blue fluorescence under UV light irradiation. FCD and FCDb can effectively sense H2O2 by fluorescence quenching as well as activate H2O2 (pro-drug), which oxidatively damage the DNA through the generation of reactive oxygen species (ROS: superoxide (O2•-), hydroxyl radical (•OH), etc). Both FCD and FCDb were utilized as selective cellular markers for cancer cell B16F10 owing to their high H2O2 content, which was more distinct in the case of FCDb due to the overexpression of biotin receptor in cancer cell. Anticancer drug paclitaxel (PTX)-loaded FCDb (FCDb-PTX) was employed for the selective killing of B16F10 cancer cells. This pro-drug-free drug formulation (FCDb-PTX) exhibited ∼2.7- to 3.5-fold higher killing of B16F10 cells mostly via early as well as late apoptotic path in comparison to noncancer NIH3T3 cells through the synergistic action of ROS (generated from H2O2 in the presence of FCDb) and anticancer effect of PTX. Hence, this newly developed FCDb-PTX can act as a potential theranostic agent in the domain of combination therapy of cancer treatment.
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Affiliation(s)
- Monalisa Chowdhury
- School of Biological Sciences, Indian Association for the Cultivation of Science Jadavpur, Kolkata 700 032, India
| | - Prasanta Kumar Das
- School of Biological Sciences, Indian Association for the Cultivation of Science Jadavpur, Kolkata 700 032, India
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6
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Marin E, Tiwari N, Calderón M, Sarasua JR, Larrañaga A. Smart Layer-by-Layer Polymeric Microreactors: pH-Triggered Drug Release and Attenuation of Cellular Oxidative Stress as Prospective Combination Therapy. ACS APPLIED MATERIALS & INTERFACES 2021; 13:18511-18524. [PMID: 33861060 PMCID: PMC9161222 DOI: 10.1021/acsami.1c01450] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/22/2021] [Accepted: 04/02/2021] [Indexed: 05/06/2023]
Abstract
Polymer capsules fabricated via the layer-by-layer (LbL) approach have emerged as promising biomedical systems for the release of a wide variety of therapeutic agents, owing to their tunable and controllable structure and the possibility to include several functionalities in the polymeric membrane during the fabrication process. However, the limitation of the capsules with a single functionality to overcome the challenges involved in the treatment of complex pathologies denotes the need to develop multifunctional capsules capable of targeting several mediators and/or mechanisms. Oxidative stress is caused by the accumulation of reactive oxygen species [e.g., hydrogen peroxide (H2O2), hydroxyl radicals (•OH), and superoxide anion radicals (•O2-)] in the cellular microenvironment and is a key modulator in the pathology of a broad range of inflammatory diseases. The disease microenvironment is also characterized by the presence of proinflammatory cytokines, increased levels of matrix metalloproteinases, and acidic pH, all of which could be exploited to trigger the release of therapeutic agents. In the present work, multifunctional capsules were fabricated via the LbL approach. Capsules were loaded with an antioxidant enzyme (catalase) and functionalized with a model drug (doxorubicin), which was conjugated to an amine-containing dendritic polyglycerol through a pH-responsive linker. These capsules efficiently scavenge H2O2 from solution, protecting cells from oxidative stress, and release the model drug in acidic microenvironments. Accordingly, in this work, a polymeric microplatform is presented as an unexplored combinatorial approach applicable for multiple targets of inflammatory diseases, in order to perform controlled spatiotemporal enzymatic reactions and drug release in response to biologically relevant stimuli.
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Affiliation(s)
- Edurne Marin
- Department
of Mining-Metallurgy Engineering and Materials Science, POLYMAT, Faculty
of Engineering in Bilbao, University of
the Basque Country (UPV/EHU), Plaza Torres Quevedo 1, 48013 Bilbao, Spain
| | - Neha Tiwari
- POLYMAT,
Applied Chemistry Department, Faculty of Chemistry, University of the Basque Country UPV/EHU, Paseo Manuel de Lardizabal 3, 20018 Donostia-San Sebastian, Spain
| | - Marcelo Calderón
- POLYMAT,
Applied Chemistry Department, Faculty of Chemistry, University of the Basque Country UPV/EHU, Paseo Manuel de Lardizabal 3, 20018 Donostia-San Sebastian, Spain
- IKERBASQUE,
Basque Foundation for Science, 48009 Bilbao, Spain
| | - Jose-Ramon Sarasua
- Department
of Mining-Metallurgy Engineering and Materials Science, POLYMAT, Faculty
of Engineering in Bilbao, University of
the Basque Country (UPV/EHU), Plaza Torres Quevedo 1, 48013 Bilbao, Spain
| | - Aitor Larrañaga
- Department
of Mining-Metallurgy Engineering and Materials Science, POLYMAT, Faculty
of Engineering in Bilbao, University of
the Basque Country (UPV/EHU), Plaza Torres Quevedo 1, 48013 Bilbao, Spain
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7
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Zhou S, Pan Y, Zhang J, Li Y, Neumann F, Schwerdtle T, Li W, Haag R. Dendritic polyglycerol-conjugated gold nanostars with different densities of functional groups to regulate osteogenesis in human mesenchymal stem cells. NANOSCALE 2020; 12:24006-24019. [PMID: 33242041 DOI: 10.1039/d0nr06570f] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Nanomaterials play an important role in mimicking the biochemical and biophysical cues of the extracellular matrix in human mesenchymal stem cells (MSCs). Increasing studies have demonstrated the crucial impact of functional groups on MSCs, while limited research is available on how the functional group's density on nanoparticles regulates MSC behavior. Herein, the effects of dendritic polyglycerol (dPG)-conjugated gold nanostars (GNSs) with different densities of functional groups on the osteogenesis of MSCs are systematically investigated. dPG@GNS nanocomposites have good biocompatibility and the uptake by MSCs is in a functional group density-dependent manner. The osteogenic differentiation of MSCs is promoted by all dPG@GNS nanocomposites, in terms of alkaline phosphatase activity, calcium deposition, and expression of osteogenic protein and genes. Interestingly, the dPGOH@GNSs exhibit a slight upregulation in the expression of osteogenic markers, while the different charged densities of sulfate and amino groups show more efficacy in the promotion of osteogenesis. Meanwhile, the sulfated nanostars dPGS20@GNSs show the highest enhancement. Furthermore, various dPG@GNS nanocomposites exerted their effects by regulating the activation of Yes-associated protein (YAP) to affect osteogenic differentiation. These results indicate that dPG@GNS nanocomposites have functional group density-dependent influence on the osteogenesis of MSCs, which may provide a new insight into regulating stem cell fate.
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Affiliation(s)
- Suqiong Zhou
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, Takustrasse 3, Berlin, 14195, Germany.
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8
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Zhang I, Lépine P, Han C, Lacalle-Aurioles M, Chen CXQ, Haag R, Durcan TM, Maysinger D. Nanotherapeutic Modulation of Human Neural Cells and Glioblastoma in Organoids and Monocultures. Cells 2020; 9:cells9112434. [PMID: 33171886 PMCID: PMC7695149 DOI: 10.3390/cells9112434] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2020] [Revised: 11/04/2020] [Accepted: 11/05/2020] [Indexed: 12/17/2022] Open
Abstract
Inflammatory processes in the brain are orchestrated by microglia and astrocytes in response to activators such as pathogen-associated molecular patterns, danger-associated molecular patterns and some nanostructures. Microglia are the primary immune responders in the brain and initiate responses amplified by astrocytes through intercellular signaling. Intercellular communication between neural cells can be studied in cerebral organoids, co-cultures or in vivo. We used human cerebral organoids and glioblastoma co-cultures to study glia modulation by dendritic polyglycerol sulfate (dPGS). dPGS is an extensively studied nanostructure with inherent anti-inflammatory properties. Under inflammatory conditions, lipocalin-2 levels in astrocytes are markedly increased and indirectly enhanced by soluble factors released from hyperactive microglia. dPGS is an effective anti-inflammatory modulator of these markers. Our results show that dPGS can enter neural cells in cerebral organoids and glial cells in monocultures in a time-dependent manner. dPGS markedly reduces lipocalin-2 abundance in the neural cells. Glioblastoma tumoroids of astrocytic origin respond to activated microglia with enhanced invasiveness, whereas conditioned media from dPGS-treated microglia reduce tumoroid invasiveness. Considering that many nanostructures have only been tested in cancer cells and rodent models, experiments in human 3D cerebral organoids and co-cultures are complementary in vitro models to evaluate nanotherapeutics in the pre-clinical setting. Thoroughly characterized organoids and standardized procedures for their preparation are prerequisites to gain information of translational value in nanomedicine. This study provides data for a well-characterized dendrimer (dPGS) that modulates the activation state of human microglia implicated in brain tumor invasiveness.
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Affiliation(s)
- Issan Zhang
- Department of Pharmacology and Therapeutics, McGill University, 3655 Promenade Sir-William-Osler, Montreal, QC H3G 1Y6, Canada;
| | - Paula Lépine
- The Neuro’s Early Drug Discovery Unit (EDDU), McGill University, 3801 University Street, Montreal, QC H3A 2B4, Canada; (P.L.); (C.H.); (M.L.-A.); (C.X.-Q.C.); (T.M.D.)
| | - Chanshuai Han
- The Neuro’s Early Drug Discovery Unit (EDDU), McGill University, 3801 University Street, Montreal, QC H3A 2B4, Canada; (P.L.); (C.H.); (M.L.-A.); (C.X.-Q.C.); (T.M.D.)
| | - María Lacalle-Aurioles
- The Neuro’s Early Drug Discovery Unit (EDDU), McGill University, 3801 University Street, Montreal, QC H3A 2B4, Canada; (P.L.); (C.H.); (M.L.-A.); (C.X.-Q.C.); (T.M.D.)
| | - Carol X.-Q. Chen
- The Neuro’s Early Drug Discovery Unit (EDDU), McGill University, 3801 University Street, Montreal, QC H3A 2B4, Canada; (P.L.); (C.H.); (M.L.-A.); (C.X.-Q.C.); (T.M.D.)
| | - Rainer Haag
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, Takustraße 3, 14195 Berlin, Germany;
| | - Thomas M. Durcan
- The Neuro’s Early Drug Discovery Unit (EDDU), McGill University, 3801 University Street, Montreal, QC H3A 2B4, Canada; (P.L.); (C.H.); (M.L.-A.); (C.X.-Q.C.); (T.M.D.)
| | - Dusica Maysinger
- Department of Pharmacology and Therapeutics, McGill University, 3655 Promenade Sir-William-Osler, Montreal, QC H3G 1Y6, Canada;
- Correspondence: ; Tel.: +1-514-398-1264
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9
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Nikam R, Xu X, Kanduč M, Dzubiella J. Competitive sorption of monovalent and divalent ions by highly charged globular macromolecules. J Chem Phys 2020; 153:044904. [DOI: 10.1063/5.0018306] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Rohit Nikam
- Research Group for Simulations of Energy Materials, Helmholtz-Zentrum Berlin für Materialien und Energie, Hahn-Meitner-Platz 1, D-14109 Berlin, Germany
- Institut für Physik, Humboldt-Universität zu Berlin, Newtonstr. 15, D-12489 Berlin, Germany
| | - Xiao Xu
- School of Chemical Engineering, Nanjing University of Science and Technology, 200 Xiao Ling Wei, Nanjing 210094, People’s Republic of China
| | - Matej Kanduč
- Department of Theoretical Physics, Jožef Stefan Institute, Jamova 39, SI-1000 Ljubljana, Slovenia
| | - Joachim Dzubiella
- Research Group for Simulations of Energy Materials, Helmholtz-Zentrum Berlin für Materialien und Energie, Hahn-Meitner-Platz 1, D-14109 Berlin, Germany
- Applied Theoretical Physics – Computational Physics, Physikalisches Institut, Albert-Ludwigs-Universität Freiburg, Hermann-Herder-Str. 3, D-79104 Freiburg, Germany
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10
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Bej R, Achazi K, Haag R, Ghosh S. Polymersome Formation by Amphiphilic Polyglycerol-b-polydisulfide-b-polyglycerol and Glutathione-Triggered Intracellular Drug Delivery. Biomacromolecules 2020; 21:3353-3363. [DOI: 10.1021/acs.biomac.0c00775] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Raju Bej
- School of Applied and Interdisciplinary Sciences, Indian Association for the Cultivation of Science, 2A and 2B Raja S. C. Mullick Road, Kolkata 700032, India
| | - Katharina Achazi
- Institute for Chemistry and Biochemistry, Freie Universität Berlin, Arnimallee 22, 14195 Berlin, Germany
| | - Rainer Haag
- Institute for Chemistry and Biochemistry, Freie Universität Berlin, Takustraße 3, 14195 Berlin, Germany
| | - Suhrit Ghosh
- School of Applied and Interdisciplinary Sciences, Indian Association for the Cultivation of Science, 2A and 2B Raja S. C. Mullick Road, Kolkata 700032, India
- Technical Research Center, Indian Association for the Cultivation of Science, 2A and 2B Raja S. C. Mullick Road, Kolkata 700032, India
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11
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Probing the protein corona around charged macromolecules: interpretation of isothermal titration calorimetry by binding models and computer simulations. Colloid Polym Sci 2020. [DOI: 10.1007/s00396-020-04648-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
AbstractIsothermal titration calorimetry (ITC) is a widely used tool to experimentally probe the heat signal of the formation of the protein corona around macromolecules or nanoparticles. If an appropriate binding model is applied to the ITC data, the heat of binding and the binding stoichiometry as well as the binding affinity per protein can be quantified and interpreted. However, the binding of the protein to the macromolecule is governed by complex microscopic interactions. In particular, due to the steric and electrostatic protein–protein interactions within the corona as well as cooperative, charge renormalization effects of the total complex, the application of standard (e.g., Langmuir) binding models is questionable and the development of more appropriate binding models is very challenging. Here, we discuss recent developments in the interpretation of the Langmuir model applied to ITC data of protein corona formation, exemplified for the well-defined case of lysozyme coating highly charged dendritic polyglycerol sulfate (dPGS), and demonstrate that meaningful data can be extracted from the fits if properly analyzed. As we show, this is particular useful for the interpretation of ITC data by molecular computer simulations where binding affinities can be calculated but it is often not clear how to consistently compare them with the ITC data. Moreover, we discuss the connection of Langmuir models to continuum binding models (where no discrete binding sites have to be assumed) and their possible extensions toward the inclusion of leading order cooperative electrostatic effects.
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12
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Santos PP, da Silva Nunes A, Exposito de Queiroz AAA, Alencar de Queiroz AA. Interactions of polyglycerol dendrimers with human serum albumin: insights from fluorescence spectroscopy and computational modeling analysis. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2019; 30:1575-1590. [PMID: 31354070 DOI: 10.1080/09205063.2019.1650242] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
Polyglycerol dendrimer synthesized from glycerol core (PGLyD) is an interesting reservoir macromolecule for the design of drug delivery systems due to their adequate blood biocompatibility. However, important features as the comprehension of the structural and dynamic characteristics and the interactions of PGLyD with blood proteins receptors remain unresolved. The high affinity and transport of HSA with drugs stimulated the docking simulations utilizing PGLyD as a ligand for the main HSA docking sites IIA and IIIA. HSA and the PGLyD structures were generated with the aid of Autodock Vina and the best conformations were determined by employing molecular docking. The molecular docking results indicate a thermodynamically favorable interaction suggesting a charge transfer complex formation between HSA and PGLyD. The interaction between PGLyD and HSA was investigated by fluorescence and the quenching mechanism of fluorescence of HSA by PGLyD was discussed. The binding constants and the number of binding sites were measured. The values of thermodynamic parameters ΔG, ΔH, and ΔS were calculated at three different temperatures. The experimental and computational results suggest that hydrophobic forces play a major role in stabilizing the HSA-PGLyD complex.
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Affiliation(s)
- Pedro Palhari Santos
- High Voltage Laboratory Prof. Manuel Luís Barreira Martinez (LAT-EFEI)/Institute of Electrical Systems and Energy (ISEE), Federal University of Itajubá-UNIFEI , Itajubá , Brazil
| | - Alexandro da Silva Nunes
- High Voltage Laboratory Prof. Manuel Luís Barreira Martinez (LAT-EFEI)/Institute of Electrical Systems and Energy (ISEE), Federal University of Itajubá-UNIFEI , Itajubá , Brazil
| | | | - Alvaro Antonio Alencar de Queiroz
- High Voltage Laboratory Prof. Manuel Luís Barreira Martinez (LAT-EFEI)/Institute of Electrical Systems and Energy (ISEE), Federal University of Itajubá-UNIFEI , Itajubá , Brazil
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13
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Total drug quantification in prodrugs using an automated elemental analyzer. Drug Deliv Transl Res 2019; 9:1057-1066. [DOI: 10.1007/s13346-019-00649-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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14
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Rades N, Achazi K, Qiu M, Deng C, Haag R, Zhong Z, Licha K. Reductively cleavable polymer-drug conjugates based on dendritic polyglycerol sulfate and monomethyl auristatin E as anticancer drugs. J Control Release 2019; 300:13-21. [DOI: 10.1016/j.jconrel.2019.01.035] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2018] [Revised: 01/18/2019] [Accepted: 01/24/2019] [Indexed: 10/27/2022]
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15
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A high therapeutic efficacy of polymeric prodrug nano-assembly for a combination of photodynamic therapy and chemotherapy. Commun Biol 2018; 1:202. [PMID: 30480103 PMCID: PMC6249255 DOI: 10.1038/s42003-018-0204-6] [Citation(s) in RCA: 61] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2018] [Accepted: 10/29/2018] [Indexed: 12/31/2022] Open
Abstract
Combination of photodynamic therapy and chemotherapy has been emerging as a new strategy for cancer treatment. Conventional photosensitizer tends to aggregate in aqueous media, which causes fluorescence quenching, reduces reactive oxygen species (ROS) production, and limits its clinical application to photodynamic therapy. Traditional nanoparticle drug delivery system for chemotherapy also has its disadvantages, such as low drug loading content, drug leakage, and off-target toxicity for normal tissues. Here, we developed a reduction-sensitive co-delivery micelles TB@PMP for combinational therapy, which composed of entrapping a red aggregation-induced emission fluorogen (AIEgen) for photodynamic therapy and PMP that contains a reduction-sensitive paclitaxel polymeric prodrug for chemotherapy. AIEgen photosensitizer illustrates a much improved photostability and ROS production efficiency in aggregate state and PMP loads a high dose of paclitaxel and carries a smart stimuli-triggered drug release property. This co-delivery system provides a better option that replaces AIEgen photosensitizer for cancer diagnosis and therapy. Xiaoqing Yi et al. report a co-drug delivery micelle system that demonstrates a high therapeutic efficacy for cancer. This system shows a much improved drug load, photostability, and production of reactive oxygen species, compared to traditional photosensitizer-loaded nanoparticles.
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16
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Ran Q, Xu X, Dey P, Yu S, Lu Y, Dzubiella J, Haag R, Ballauff M. Interaction of human serum albumin with dendritic polyglycerol sulfate: Rationalizing the thermodynamics of binding. J Chem Phys 2018; 149:163324. [DOI: 10.1063/1.5030601] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Qidi Ran
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, Takustr. 3, 14195 Berlin, Germany
- Institute of Soft Matter and Functional Materials, Helmholtz-Zentrum Berlin, Hahn-Meitner-Platz 1, 14109 Berlin, Germany
- Multifunctional Biomaterials for Medicine, Helmholtz Virtual Institute, Kantstr. 55, 14513 Teltow-Seehof, Germany
| | - Xiao Xu
- School of Chemical Engineering, Nanjing University of Science and Technology, 200 Xiao Ling Wei, 210094 Nanjing, People’s Republic of China
| | - Pradip Dey
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, Takustr. 3, 14195 Berlin, Germany
| | - Shun Yu
- Institute of Soft Matter and Functional Materials, Helmholtz-Zentrum Berlin, Hahn-Meitner-Platz 1, 14109 Berlin, Germany
- Institut für Physik, Humboldt-Universität zu Berlin, Newtonstr. 15, 12489 Berlin, Germany
| | - Yan Lu
- Institute of Soft Matter and Functional Materials, Helmholtz-Zentrum Berlin, Hahn-Meitner-Platz 1, 14109 Berlin, Germany
| | - Joachim Dzubiella
- Institute of Soft Matter and Functional Materials, Helmholtz-Zentrum Berlin, Hahn-Meitner-Platz 1, 14109 Berlin, Germany
- Multifunctional Biomaterials for Medicine, Helmholtz Virtual Institute, Kantstr. 55, 14513 Teltow-Seehof, Germany
- Physikalisches Institut, Albert-Ludwigs-Universität, 79104 Freiburg, Germany
| | - Rainer Haag
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, Takustr. 3, 14195 Berlin, Germany
- Multifunctional Biomaterials for Medicine, Helmholtz Virtual Institute, Kantstr. 55, 14513 Teltow-Seehof, Germany
| | - Matthias Ballauff
- Institute of Soft Matter and Functional Materials, Helmholtz-Zentrum Berlin, Hahn-Meitner-Platz 1, 14109 Berlin, Germany
- Multifunctional Biomaterials for Medicine, Helmholtz Virtual Institute, Kantstr. 55, 14513 Teltow-Seehof, Germany
- Institut für Physik, Humboldt-Universität zu Berlin, Newtonstr. 15, 12489 Berlin, Germany
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17
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Ran Q, Xu X, Dzubiella J, Haag R, Ballauff M. Thermodynamics of the Binding of Lysozyme to a Dendritic Polyelectrolyte: Electrostatics Versus Hydration. ACS OMEGA 2018; 3:9086-9095. [PMID: 31459043 PMCID: PMC6644519 DOI: 10.1021/acsomega.8b01493] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2018] [Accepted: 07/30/2018] [Indexed: 05/25/2023]
Abstract
The interaction between dendritic polyglycerol sulfate (dPGS) of the second generation and lysozyme was studied by isothermal titration calorimetry (ITC) at different temperatures and salt concentrations. Analysis by ITC showed that 2-3 lysozyme molecules were bound to each dPGS. The resulting binding constant K b and the Gibbs free energy ΔG o decreased markedly with increasing salt concentration but were nearly independent of temperature. The salt dependence of K b led to the conclusion that ca. 3 counterions bound to dPGS were released upon complex formation. The gain in entropy ΔG ci by this counterion-release scales logarithmically with salt concentration and is the main driving force for binding. The temperature dependence of ΔG o was analyzed by the nonlinear van't Hoff plot, taking into account a finite heat capacity change ΔC p,vH. This evaluation led to the binding enthalpy ΔH vH and the binding entropy ΔS vH. Both quantities varied strongly with temperature and even changed sign, but they compensated each other throughout the entire range of temperature. Coarse-grained computer simulations with explicit salt and implicit water were used to obtain the binding free energies that agreed with ITC results. Thus, electrostatic factors were the driving forces for binding whereas all hydration contributions leading to the strongly varying ΔH vH and ΔS vH canceled out. The calorimetric enthalpy ΔH ITC measured directly by ITC differed largely from ΔH vH. ITC measurements done in two buffer systems with different ionization enthalpies revealed that binding was linked to buffer ionization and a partial protonation of the protein.
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Affiliation(s)
- Qidi Ran
- Institute
of Chemistry and Biochemistry, Freie Universität
Berlin, Takustr. 3, 14195 Berlin, Germany
- Institute
of Soft Matter and Functional Materials, Helmholtz-Zentrum Berlin, Hahn-Meitner-Platz 1, 14109 Berlin, Germany
- Multifunctional
Biomaterials for Medicine, Helmholtz Virtual Institute, Kantstr. 55, 14513 Teltow-Seehof, Germany
| | - Xiao Xu
- School
of Chemical Engineering, Nanjing University
of Science and Technology, 200 Xiao Ling Wei, 210094 Nanjing, P. R. China
| | - Joachim Dzubiella
- Institute
of Soft Matter and Functional Materials, Helmholtz-Zentrum Berlin, Hahn-Meitner-Platz 1, 14109 Berlin, Germany
- Multifunctional
Biomaterials for Medicine, Helmholtz Virtual Institute, Kantstr. 55, 14513 Teltow-Seehof, Germany
- Physikalisches
Institut, Albert-Ludwigs-Universität, Hermann-Herder-Str. 3, 79104 Freiburg, Germany
| | - Rainer Haag
- Institute
of Chemistry and Biochemistry, Freie Universität
Berlin, Takustr. 3, 14195 Berlin, Germany
- Multifunctional
Biomaterials for Medicine, Helmholtz Virtual Institute, Kantstr. 55, 14513 Teltow-Seehof, Germany
| | - Matthias Ballauff
- Institute
of Soft Matter and Functional Materials, Helmholtz-Zentrum Berlin, Hahn-Meitner-Platz 1, 14109 Berlin, Germany
- Multifunctional
Biomaterials for Medicine, Helmholtz Virtual Institute, Kantstr. 55, 14513 Teltow-Seehof, Germany
- Institut
für Physik, Humboldt-Universität
zu Berlin, Newtonstr. 15, 12489 Berlin, Germany
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18
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Nikam R, Xu X, Ballauff M, Kanduč M, Dzubiella J. Charge and hydration structure of dendritic polyelectrolytes: molecular simulations of polyglycerol sulphate. SOFT MATTER 2018; 14:4300-4310. [PMID: 29780980 PMCID: PMC5977385 DOI: 10.1039/c8sm00714d] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/09/2018] [Accepted: 05/09/2018] [Indexed: 06/08/2023]
Abstract
Macromolecules based on dendritic or hyperbranched polyelectrolytes have been emerging as high potential candidates for biomedical applications. Here we study the charge and solvation structure of dendritic polyglycerol sulphate (dPGS) of generations 0 to 3 in aqueous sodium chloride solution by explicit-solvent molecular dynamics computer simulations. We characterize dPGS by calculating several important properties such as relevant dPGS radii, molecular distributions, the solvent accessible surface area, and the partial molecular volume. In particular, as the dPGS exhibits high charge renormalization effects, we address the challenges of how to obtain a well-defined effective charge and surface potential of dPGS for practical applications. We compare implicit- and explicit-solvent approaches in our all-atom simulations with the coarse-grained simulations from our previous work. We find consistent values for the effective electrostatic size (i.e., the location of the effective charge of a Debye-Hückel sphere) within all the approaches, deviating at most by the size of a water molecule. Finally, the excess chemical potential of water insertion into dPGS and its thermodynamic signature are presented and rationalized.
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Affiliation(s)
- Rohit Nikam
- Research Group Simulations of Energy Materials
, Helmholtz-Zentrum Berlin für Materialien und Energie
,
Hahn-Meitner-Platz 1
, D-14109 Berlin
, Germany
.
;
- Institut für Physik
, Humboldt-Universität zu Berlin
,
Newtonstr. 15
, D-12489 Berlin
, Germany
| | - Xiao Xu
- School of Chemical Engineering
, Nanjing University of Science and Technology
,
200 Xiao Ling Wei
, Nanjing 210094
, P. R. China
| | - Matthias Ballauff
- Institut für Physik
, Humboldt-Universität zu Berlin
,
Newtonstr. 15
, D-12489 Berlin
, Germany
- Soft Matter and Functional Materials
, Helmholtz-Zentrum Berlin für Materialien und Energie
,
Hahn-Meitner-Platz 1
, D-14109 Berlin
, Germany
- Multifunctional Biomaterials for Medicine
, Helmholtz Virtual Institute
,
Kantstr. 55
, D-14513 Teltow-Seehof
, Germany
| | - Matej Kanduč
- Research Group Simulations of Energy Materials
, Helmholtz-Zentrum Berlin für Materialien und Energie
,
Hahn-Meitner-Platz 1
, D-14109 Berlin
, Germany
.
;
| | - Joachim Dzubiella
- Research Group Simulations of Energy Materials
, Helmholtz-Zentrum Berlin für Materialien und Energie
,
Hahn-Meitner-Platz 1
, D-14109 Berlin
, Germany
.
;
- Physikalisches Institut
, Albert-Ludwigs-Universität Freiburg
,
Hermann-Herder Str. 3
, D-79104 Freiburg
, Germany
.
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19
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Rades N, Licha K, Haag R. Dendritic Polyglycerol Sulfate for Therapy and Diagnostics. Polymers (Basel) 2018; 10:E595. [PMID: 30966629 PMCID: PMC6403730 DOI: 10.3390/polym10060595] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2018] [Revised: 05/22/2018] [Accepted: 05/26/2018] [Indexed: 12/15/2022] Open
Abstract
Dendritic polyglycerol sulfate (dPGS) has originally been investigated as an anticoagulant to potentially substitute for the natural glycosaminoglycan heparin. Compared to unfractionated heparin, dPGS possesses lower anticoagulant activity but a much higher anticomplementary effect. Since coagulation, complement activation, and inflammation are often present in the pathophysiology of numerous diseases, dPGS polymers with both anticoagulant and anticomplementary activities represent promising candidates for the development of polymeric drugs of nanosized architecture. In this review, we describe the nanomedical applications of dPGS based on its anti-inflammatory activity. Furthermore, the application of dPGS as a carrier molecule for diagnostic molecules and therapeutic drugs is reviewed, based on the ability to target tumors and localize in tumor cells. Finally, the application of dPGS for inhibition of virus infections is described.
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Affiliation(s)
- Nadine Rades
- Institute for Chemistry and Biochemistry, Freie Universität Berlin, Takustraße 3, 14195 Berlin, Germany.
| | - Kai Licha
- Institute for Chemistry and Biochemistry, Freie Universität Berlin, Takustraße 3, 14195 Berlin, Germany.
| | - Rainer Haag
- Institute for Chemistry and Biochemistry, Freie Universität Berlin, Takustraße 3, 14195 Berlin, Germany.
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20
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Rompicharla SVK, Kumari P, Ghosh B, Biswas S. Octa-arginine modified poly(amidoamine) dendrimers for improved delivery and cytotoxic effect of paclitaxel in cancer. ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY 2018; 46:847-859. [PMID: 29790795 DOI: 10.1080/21691401.2018.1470527] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Cell penetrating peptides (CPP) have the ability to penetrate the cell membrane and have been associated with various cargos for their facile intracellular translocation. The current study involves the synthesis of a CPP, octa-arginine (R8)-modified poly(amidoamine) dendrimer of generation 4 (G4), which has additionally been PEGylated and conjugated to the poorly soluble anticancer drug, paclitaxel (PTX). The synthesized dendrimer conjugates were characterized by proton nuclear magnetic resonance (1H-NMR) Spectroscopy and zeta potential measurements and evaluated in vitro in cell monolayers and 3D spheroids. Cellular uptake study in human cervical cancer cell line (HeLa) revealed that R8 modification significantly improved the cell association of conjugates. G4-PTX- polyethylene glycol (PEG)-R8 conjugate demonstrated enhanced cytotoxic potential and higher induction of apoptosis compared to free PTX and G4-PTX-PEG. Further, the penetrability of fluorescently labeled F-G4-PTX-PEG-R8 was evaluated in 3D spheroids of HeLa at various depths by using confocal microscopy. G4-PTX-PEG-R8 induced cell death and inhibited the growth in 3D spheroids as competently as in monolayers. The enhanced intracellular translocation of R8-modified dendrimers resulted in improved anticancer efficacy of PTX. Therefore, the newly developed dendrimer system is efficient for the intracellular delivery of PTX in cancer cells and has a strong potential to be utilized as an effective chemotherapeutic agent for cancer.
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Affiliation(s)
- Sri Vishnu Kiran Rompicharla
- a Department of Pharmacy , Birla Institute of Technology & Science-Pilani - Hyderabad Campus , Hyderabad , India
| | - Preeti Kumari
- a Department of Pharmacy , Birla Institute of Technology & Science-Pilani - Hyderabad Campus , Hyderabad , India
| | - Balaram Ghosh
- a Department of Pharmacy , Birla Institute of Technology & Science-Pilani - Hyderabad Campus , Hyderabad , India
| | - Swati Biswas
- a Department of Pharmacy , Birla Institute of Technology & Science-Pilani - Hyderabad Campus , Hyderabad , India
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21
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Vossen LI, Wedepohl S, Calderón M. A Facile, One-Pot, Surfactant-Free Nanoprecipitation Method for the Preparation of Nanogels from Polyglycerol⁻Drug Conjugates that Can Be Freely Assembled for Combination Therapy Applications. Polymers (Basel) 2018; 10:polym10040398. [PMID: 30966433 PMCID: PMC6415236 DOI: 10.3390/polym10040398] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2018] [Revised: 03/22/2018] [Accepted: 03/27/2018] [Indexed: 12/18/2022] Open
Abstract
A well-established strategy to treat drug resistance is the use of multiple therapeutics. Polymer-based drug delivery systems (DDS) can facilitate a simultaneous delivery of two or more drugs. In this study, we developed and synthesized a dendritic polyglycerol (PG) nanogel (NG) system that allows for free combination of different fixed ratios of active compound conjugates within a single NG particle. As a proof of concept, we synthesized NGs bearing the chemotherapeutic agent doxorubicin (DOX) and paclitaxel (PTX) in different ratios, as well as conjugated dye molecules. Our combination PG NGs were formed by simply mixing PG–drug/dye conjugates bearing free thiol groups with PG-acrylate in an inverse surfactant-free nanoprecipitation method. With this method we obtained PG-NGs in the size range of 110–165 nm with low polydispersity indices. Solubility of hydrophobic PTX was improved without the need for additional solubilizing agents such as polyethylene glycol (PEG). Interestingly, we found that our NGs made from PG-DOX conjugates have a high quenching efficiency for DOX, which could be interesting for theranostic purposes.
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Affiliation(s)
- Laura I Vossen
- Freie Universität Berlin, Institut für Chemie und Biochemie, Takustrasse 3, 14195 Berlin, Germany.
| | - Stefanie Wedepohl
- Freie Universität Berlin, Institut für Chemie und Biochemie, Takustrasse 3, 14195 Berlin, Germany.
| | - Marcelo Calderón
- Freie Universität Berlin, Institut für Chemie und Biochemie, Takustrasse 3, 14195 Berlin, Germany.
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22
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Ooya T, Ogawa T, Takeuchi T. Temperature-induced recovery of a bioactive enzyme using polyglycerol dendrimers: correlation between bound water and protein interaction. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2018; 29:701-715. [DOI: 10.1080/09205063.2018.1434988] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Tooru Ooya
- Graduate School of Engineering, Kobe University, Kobe, Japan
| | - Takaya Ogawa
- Graduate School of Engineering, Kobe University, Kobe, Japan
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23
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Xu X, Ran Q, Dey P, Nikam R, Haag R, Ballauff M, Dzubiella J. Counterion-Release Entropy Governs the Inhibition of Serum Proteins by Polyelectrolyte Drugs. Biomacromolecules 2018; 19:409-416. [PMID: 29268015 DOI: 10.1021/acs.biomac.7b01499] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Dendritic polyelectrolytes constitute high potential drugs and carrier systems for biomedical purposes. Still, their biomolecular interaction modes, in particular those determining the binding affinity to proteins, have not been rationalized. We study the interaction of the drug candidate dendritic polyglycerol sulfate (dPGS) with serum proteins using isothermal titration calorimetry (ITC) interpreted and complemented with molecular computer simulations. Lysozyme is first studied as a well-defined model protein to verify theoretical concepts, which are then applied to the important cell adhesion protein family of selectins. We demonstrate that the driving force of the strong complexation, leading to a distinct protein corona, originates mainly from the release of only a few condensed counterions from the dPGS upon binding. The binding constant shows a surprisingly weak dependence on dPGS size (and bare charge) which can be understood by colloidal charge-renormalization effects and by the fact that the magnitude of the dominating counterion-release mechanism almost exclusively depends on the interfacial charge structure of the protein-specific binding patch. Our findings explain the high selectivity of P- and L-selectins over E-selectin for dPGS to act as a highly anti-inflammatory drug. The entire analysis demonstrates that the interaction of proteins with charged polymeric drugs can be predicted by simulations with unprecedented accuracy. Thus, our results open new perspectives for the rational design of charged polymeric drugs and carrier systems.
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Affiliation(s)
- Xiao Xu
- Institut für Weiche Materie und Funktionale Materialien, Helmholtz-Zentrum Berlin , Hahn-Meitner-Platz 1, 14109 Berlin, Germany.,Institut für Physik, Humboldt-Universität zu Berlin , Newtonstr. 15, 12489 Berlin, Germany
| | - Qidi Ran
- Institut für Weiche Materie und Funktionale Materialien, Helmholtz-Zentrum Berlin , Hahn-Meitner-Platz 1, 14109 Berlin, Germany.,Multifunctional Biomaterials for Medicine, Helmholtz Virtual Institute , Kantstrasse 55, 14513 Teltow-Seehof, Germany.,Institut für Chemie und Biochemie, Freie Universität Berlin , Takustrasse 3, 14195 Berlin, Germany
| | - Pradip Dey
- Institut für Chemie und Biochemie, Freie Universität Berlin , Takustrasse 3, 14195 Berlin, Germany.,Polymer Science Unit, Indian Association for the Cultivation of Science , 2A & 2B Raja S. C. Mullick Road, 700032 Kolkata, India
| | - Rohit Nikam
- Institut für Weiche Materie und Funktionale Materialien, Helmholtz-Zentrum Berlin , Hahn-Meitner-Platz 1, 14109 Berlin, Germany.,Institut für Physik, Humboldt-Universität zu Berlin , Newtonstr. 15, 12489 Berlin, Germany
| | - Rainer Haag
- Multifunctional Biomaterials for Medicine, Helmholtz Virtual Institute , Kantstrasse 55, 14513 Teltow-Seehof, Germany.,Institut für Chemie und Biochemie, Freie Universität Berlin , Takustrasse 3, 14195 Berlin, Germany
| | - Matthias Ballauff
- Institut für Weiche Materie und Funktionale Materialien, Helmholtz-Zentrum Berlin , Hahn-Meitner-Platz 1, 14109 Berlin, Germany.,Institut für Physik, Humboldt-Universität zu Berlin , Newtonstr. 15, 12489 Berlin, Germany.,Multifunctional Biomaterials for Medicine, Helmholtz Virtual Institute , Kantstrasse 55, 14513 Teltow-Seehof, Germany
| | - Joachim Dzubiella
- Institut für Weiche Materie und Funktionale Materialien, Helmholtz-Zentrum Berlin , Hahn-Meitner-Platz 1, 14109 Berlin, Germany.,Institut für Physik, Humboldt-Universität zu Berlin , Newtonstr. 15, 12489 Berlin, Germany.,Multifunctional Biomaterials for Medicine, Helmholtz Virtual Institute , Kantstrasse 55, 14513 Teltow-Seehof, Germany
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24
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Huo Q, Zhu J, Niu Y, Shi H, Gong Y, Li Y, Song H, Liu Y. pH-triggered surface charge-switchable polymer micelles for the co-delivery of paclitaxel/disulfiram and overcoming multidrug resistance in cancer. Int J Nanomedicine 2017; 12:8631-8647. [PMID: 29270012 PMCID: PMC5720040 DOI: 10.2147/ijn.s144452] [Citation(s) in RCA: 58] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Multidrug resistance (MDR) remains a major challenge for providing effective chemotherapy for many cancer patients. To address this issue, we report an intelligent polymer-based drug co-delivery system which could enhance and accelerate cellular uptake and reverse MDR. The nanodrug delivery systems were constructed by encapsulating disulfiram (DSF), a P-glyco-protein (P-gp) inhibitor, into the hydrophobic core of poly(ethylene glycol)-block-poly(l-lysine) (PEG-b-PLL) block copolymer micelles, as well as 2,3-dimethylmaleic anhydride (DMA) and paclitaxel (PTX) were grafted on the side chain of l-lysine simultaneously. The surface charge of the drug-loaded micelles represents as negative in plasma (pH 7.4), which is helpful to prolong the circulation time, and in a weak acid environment of tumor tissue (pH 6.5-6.8) it can be reversed to positive, which is in favor of their entering into the cancer cells. In addition, the carrier could release DSF and PTX successively inside cells. The results of in vitro studies show that, compared to the control group, the DSF and PTX co-loaded micelles with charge reversal exhibits more effective cellular uptake and significantly increased cytotoxicity of PTX to MCF-7/ADR cells which may be due to the inhibitory effect of DSF on the efflux function of P-gp. Accordingly, such a smart pH-sensitive nanosystem, in our opinion, possesses significant potential to achieve combinational drug delivery and overcome drug resistance in cancer therapy.
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Affiliation(s)
- Qiang Huo
- School of Pharmacy, Bengbu Medical College, Bengbu
| | - Jianhua Zhu
- School of Pharmacy, Bengbu Medical College, Bengbu
- School of Pharmacy, Nanjing Medical University
| | - Yimin Niu
- Department of Pharmacy, Zhongda Hospital, School of Medicine, Southeast University, Nanjing
| | - Huihui Shi
- School of Pharmacy, Nanjing Medical University
| | | | - Yang Li
- School of Pharmacy, Nanjing Medical University
| | - Huihui Song
- Yangtze River Pharmaceutical Group, Taizhou, People’s Republic of China
| | - Yang Liu
- School of Pharmacy, Nanjing Medical University
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25
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Ferber S, Tiram G, Sousa-Herves A, Eldar-Boock A, Krivitsky A, Scomparin A, Yeini E, Ofek P, Ben-Shushan D, Vossen LI, Licha K, Grossman R, Ram Z, Henkin J, Ruppin E, Auslander N, Haag R, Calderón M, Satchi-Fainaro R. Co-targeting the tumor endothelium and P-selectin-expressing glioblastoma cells leads to a remarkable therapeutic outcome. eLife 2017; 6:25281. [PMID: 28976305 PMCID: PMC5644959 DOI: 10.7554/elife.25281] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2017] [Accepted: 10/03/2017] [Indexed: 01/31/2023] Open
Abstract
Glioblastoma is a highly aggressive brain tumor. Current standard-of-care results in a marginal therapeutic outcome, partly due to acquirement of resistance and insufficient blood-brain barrier (BBB) penetration of chemotherapeutics. To circumvent these limitations, we conjugated the chemotherapy paclitaxel (PTX) to a dendritic polyglycerol sulfate (dPGS) nanocarrier. dPGS is able to cross the BBB, bind to P/L-selectins and accumulate selectively in intracranial tumors. We show that dPGS has dual targeting properties, as we found that P-selectin is not only expressed on tumor endothelium but also on glioblastoma cells. We delivered dPGS-PTX in combination with a peptidomimetic of the anti-angiogenic protein thrombospondin-1 (TSP-1 PM). This combination resulted in a remarkable synergistic anticancer effect on intracranial human and murine glioblastoma via induction of Fas and Fas-L, with no side effects compared to free PTX or temozolomide. This study shows that our unique therapeutic approach offers a viable alternative for the treatment of glioblastoma.
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Affiliation(s)
- Shiran Ferber
- Department of Physiology and Pharmacology, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Galia Tiram
- Department of Physiology and Pharmacology, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Ana Sousa-Herves
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, Berlin, Germany
| | - Anat Eldar-Boock
- Department of Physiology and Pharmacology, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Adva Krivitsky
- Department of Physiology and Pharmacology, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Anna Scomparin
- Department of Physiology and Pharmacology, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Eilam Yeini
- Department of Physiology and Pharmacology, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Paula Ofek
- Department of Physiology and Pharmacology, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Dikla Ben-Shushan
- Department of Physiology and Pharmacology, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Laura Isabel Vossen
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, Berlin, Germany
| | - Kai Licha
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, Berlin, Germany
| | - Rachel Grossman
- Department of Neurosurgery, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel
| | - Zvi Ram
- Department of Neurosurgery, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel
| | - Jack Henkin
- Chemistry of Life Processes Institute, Northwestern University, Evanston, United States
| | - Eytan Ruppin
- Department of Physiology and Pharmacology, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel.,Center for Bioinformatics and Computational Biology, University of Maryland, College Park, United States.,Blavatnik School of Computer Sciences, Tel Aviv University, Tel Aviv, Israel.,Department of Computer Science, University of Maryland, College Park, United States
| | - Noam Auslander
- Center for Bioinformatics and Computational Biology, University of Maryland, College Park, United States.,Department of Computer Science, University of Maryland, College Park, United States
| | - Rainer Haag
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, Berlin, Germany
| | - Marcelo Calderón
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, Berlin, Germany
| | - Ronit Satchi-Fainaro
- Department of Physiology and Pharmacology, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel.,Sagol School of Neurosciences, Tel Aviv University, Tel Aviv, Israel
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26
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Xu X, Ran Q, Haag R, Ballauff M, Dzubiella J. Charged Dendrimers Revisited: Effective Charge and Surface Potential of Dendritic Polyglycerol Sulfate. Macromolecules 2017. [DOI: 10.1021/acs.macromol.7b00742] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Xiao Xu
- Institut
für Weiche Materie und Funktionale Materialien, Helmholtz-Zentrum Berlin, Hahn-Meitner-Platz 1, 14109 Berlin, Germany
- Institut
für Physik, Humboldt-Universität zu Berlin, Newtonstr.
15, 12489 Berlin, Germany
- Multifunctional
Biomaterials for Medicine, Helmholtz Virtual Institute, Kantstr. 55, 14513 Teltow-Seehof, Germany
| | - Qidi Ran
- Institut
für Physik, Humboldt-Universität zu Berlin, Newtonstr.
15, 12489 Berlin, Germany
- Multifunctional
Biomaterials for Medicine, Helmholtz Virtual Institute, Kantstr. 55, 14513 Teltow-Seehof, Germany
- Institut
für Chemie und Biochemie, Freie Universität Berlin, Takustr. 3, 14195 Berlin, Germany
| | - Rainer Haag
- Multifunctional
Biomaterials for Medicine, Helmholtz Virtual Institute, Kantstr. 55, 14513 Teltow-Seehof, Germany
- Institut
für Chemie und Biochemie, Freie Universität Berlin, Takustr. 3, 14195 Berlin, Germany
| | - Matthias Ballauff
- Institut
für Weiche Materie und Funktionale Materialien, Helmholtz-Zentrum Berlin, Hahn-Meitner-Platz 1, 14109 Berlin, Germany
- Institut
für Physik, Humboldt-Universität zu Berlin, Newtonstr.
15, 12489 Berlin, Germany
- Multifunctional
Biomaterials for Medicine, Helmholtz Virtual Institute, Kantstr. 55, 14513 Teltow-Seehof, Germany
| | - Joachim Dzubiella
- Institut
für Weiche Materie und Funktionale Materialien, Helmholtz-Zentrum Berlin, Hahn-Meitner-Platz 1, 14109 Berlin, Germany
- Institut
für Physik, Humboldt-Universität zu Berlin, Newtonstr.
15, 12489 Berlin, Germany
- Multifunctional
Biomaterials for Medicine, Helmholtz Virtual Institute, Kantstr. 55, 14513 Teltow-Seehof, Germany
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27
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Reimann S, Schneider T, Welker P, Neumann F, Licha K, Schulze-Tanzil G, Wagermaier W, Fratzl P, Haag R. Dendritic polyglycerol anions for the selective targeting of native and inflamed articular cartilage. J Mater Chem B 2017; 5:4754-4767. [DOI: 10.1039/c7tb00618g] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Dye-conjugated polyanions show high affinities toward native and inflamed cartilage dependent on the anionic moiety and the condition of the tissue.
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Affiliation(s)
- Sabine Reimann
- Institute of Chemistry and Biochemistry
- Freie Universität Berlin
- 14195 Berlin
- Germany
| | - Tobias Schneider
- Institute of Anatomy
- General Hospital Nuremberg
- Paracelsus Medical University
- 90419 Nuremberg
- Germany
| | - Pia Welker
- Institute of Anatomy and Cell Biology Charité Universitätsmedizin Berlin
- 10115 Berlin
- Germany
| | - Falko Neumann
- Institute of Chemistry and Biochemistry
- Freie Universität Berlin
- 14195 Berlin
- Germany
| | - Kai Licha
- Institute of Chemistry and Biochemistry
- Freie Universität Berlin
- 14195 Berlin
- Germany
| | - Gundula Schulze-Tanzil
- Institute of Anatomy
- General Hospital Nuremberg
- Paracelsus Medical University
- 90419 Nuremberg
- Germany
| | - Wolfgang Wagermaier
- Max Planck Institute of Colloids and Interfaces
- Department of Biomaterials
- 14424 Potsdam
- Germany
| | - Peter Fratzl
- Max Planck Institute of Colloids and Interfaces
- Department of Biomaterials
- 14424 Potsdam
- Germany
| | - Rainer Haag
- Institute of Chemistry and Biochemistry
- Freie Universität Berlin
- 14195 Berlin
- Germany
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28
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Gosecki M, Gadzinowski M, Gosecka M, Basinska T, Slomkowski S. Polyglycidol, Its Derivatives, and Polyglycidol-Containing Copolymers-Synthesis and Medical Applications. Polymers (Basel) 2016; 8:E227. [PMID: 30979324 PMCID: PMC6432134 DOI: 10.3390/polym8060227] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2016] [Revised: 05/30/2016] [Accepted: 05/31/2016] [Indexed: 12/24/2022] Open
Abstract
Polyglycidol (or polyglycerol) is a biocompatible polymer with a main chain structure similar to that of poly(ethylene oxide) but with a ⁻CH₂OH reactive side group in every structural unit. The hydroxyl groups in polyglycidol not only increase the hydrophilicity of this polymer but also allow for its modification, leading to polymers with carboxyl, amine, and vinyl groups, as well as to polymers with bonded aliphatic chains, sugar moieties, and covalently immobilized bioactive compounds in particular proteins. The paper describes the current state of knowledge on the synthesis of polyglycidols with various topology (linear, branched, and star-like) and with various molar masses. We provide information on polyglycidol-rich surfaces with protein-repelling properties. We also describe methods for the synthesis of polyglycidol-containing copolymers and the preparation of nano- and microparticles that could be derived from these copolymers. The paper summarizes recent advances in the application of polyglycidol and polyglycidol-containing polymers as drug carriers, reagents for diagnostic systems, and elements of biosensors.
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Affiliation(s)
- Mateusz Gosecki
- Center of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363 Lodz, Poland.
| | - Mariusz Gadzinowski
- Center of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363 Lodz, Poland.
| | - Monika Gosecka
- Center of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363 Lodz, Poland.
| | - Teresa Basinska
- Center of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363 Lodz, Poland.
| | - Stanislaw Slomkowski
- Center of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363 Lodz, Poland.
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29
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Han Y, Qian Y, Zhou X, Hu H, Liu X, Zhou Z, Tang J, Shen Y. Facile synthesis of zwitterionic polyglycerol dendrimers with a β-cyclodextrin core as MRI contrast agent carriers. Polym Chem 2016. [DOI: 10.1039/c6py01404f] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
A facile synthesis method of a zwitterionic polyglycerol dendrimer was developed, providing an ideal carrier for drug and imaging probe delivery.
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Affiliation(s)
- Yuxin Han
- Key Laboratory of Biomass Chemical Engineering of Ministry of Education
- Center for Bionanoengineering
- and College of Chemical and Biological Engineering
- Zhejiang University
- Hangzhou
| | - Yue Qian
- Department of Radiology
- Sir Run Run Shaw Hospital (SRRSH) of School of Medicine
- Zhejiang University
- Hangzhou
- China
| | - Xiaoxuan Zhou
- Department of Radiology
- Sir Run Run Shaw Hospital (SRRSH) of School of Medicine
- Zhejiang University
- Hangzhou
- China
| | - Hongjie Hu
- Department of Radiology
- Sir Run Run Shaw Hospital (SRRSH) of School of Medicine
- Zhejiang University
- Hangzhou
- China
| | - Xiangrui Liu
- Key Laboratory of Biomass Chemical Engineering of Ministry of Education
- Center for Bionanoengineering
- and College of Chemical and Biological Engineering
- Zhejiang University
- Hangzhou
| | - Zhuxian Zhou
- Key Laboratory of Biomass Chemical Engineering of Ministry of Education
- Center for Bionanoengineering
- and College of Chemical and Biological Engineering
- Zhejiang University
- Hangzhou
| | - Jianbin Tang
- Key Laboratory of Biomass Chemical Engineering of Ministry of Education
- Center for Bionanoengineering
- and College of Chemical and Biological Engineering
- Zhejiang University
- Hangzhou
| | - Youqing Shen
- Key Laboratory of Biomass Chemical Engineering of Ministry of Education
- Center for Bionanoengineering
- and College of Chemical and Biological Engineering
- Zhejiang University
- Hangzhou
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