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Maury P, Hirayama R, Li X, Mahou P, Schanne-Klein MC, Lacombe S, Gref R, Porcel E. Synergistic effect of Gemcitabin-loaded metal organic frameworks nanoparticles with particle therapy. Int J Pharm 2024; 665:124721. [PMID: 39293579 DOI: 10.1016/j.ijpharm.2024.124721] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2024] [Revised: 09/11/2024] [Accepted: 09/13/2024] [Indexed: 09/20/2024]
Abstract
Combination of nanoagents with radiations has opened up new perspectives in cancer treatment, improving both tumor diagnosis and therapeutic index. This work presents the first investigation of an innovative strategy that combines porous metal-organic frameworks (nanoMOFs) loaded with the anti-cancer drug Gemcitabine monophosphate (GemMP) and particle therapy-a globally emerging technique that offers more precise radiation targeting and enhanced biological efficacy compared to conventional radiotherapy. This radiochemotherapy has been confronted with two major obstacles limiting the efficacy of therapeutics when tested in vivo: (i) the presence of hypoxia, one of the most important causes for radiotherapy failure and (ii) the presence of a microenvironment, main biological barrier to the direct penetration of nanoparticles into cancer cells. On the one hand, this study explore the effects of hypoxia on drug delivery systems in combination with radiation, demonstrating that GemMP-loaded nanoMOFs significantly enhance the anticancer efficacy of particle therapy under both normoxic (pO2 = 20 %) and hypoxic (pO2 = 0.5 %) conditions. Notably, the presence of GemMP-loaded nanoMOFs allows the irradiation dose to be reduced by 1.4-fold in normoxia and at least 1.6-fold in hypoxia, achieving the same cytotoxic effect (SF=10 %) as carbon or helium ions alone. Synergistic effects between GemMP-loaded nanoMOFs and radiations have been observed and quantified. On the other hand, we also highlighted the ability of the nanoMOFs to diffuse through an extracellular matrix and accumulate in cells. An higher effect of the encapsulated GemMP than the free drug was observed, confirming the key role of the nanoMOFs in transporting the active substance to the cancer cells as a Trojan horse. This paves the way to the design of "all-in-one" nanodrugs where each component plays a role in the optimization of cancer therapy to maximize cytotoxic effects on hypoxic tumor cells while minimizing toxicity on healthy tissue.
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Affiliation(s)
- Pauline Maury
- Université Paris Saclay, CNRS, Institut des Sciences Moléculaires d'Orsay (ISMO), 91405 Orsay, France; Université Paris-Saclay, Gustave Roussy, Inserm U1030, Radiothérapie Moléculaire et Innovation Thérapeutique, F-94800, Villejuif, France; Gustave Roussy, Département de radiothérapie, F-94800, Villejuif, France
| | - Ryoichi Hirayama
- Department of Charged Particle Therapy Research, QST Hospital, National Institutes for Quantum Science and Technology (QST), Chiba, Japan
| | - Xue Li
- Université Paris Saclay, CNRS, Institut des Sciences Moléculaires d'Orsay (ISMO), 91405 Orsay, France
| | - Pierre Mahou
- Laboratoire d'Optique et Biosciences (LOB), Ecole Polytechnique, CNRS, INSERM, Institut Polytechnique de Paris, Palaiseau, France
| | - Marie-Claire Schanne-Klein
- Laboratoire d'Optique et Biosciences (LOB), Ecole Polytechnique, CNRS, INSERM, Institut Polytechnique de Paris, Palaiseau, France
| | - Sandrine Lacombe
- Université Paris Saclay, CNRS, Institut des Sciences Moléculaires d'Orsay (ISMO), 91405 Orsay, France
| | - Ruxandra Gref
- Université Paris Saclay, CNRS, Institut des Sciences Moléculaires d'Orsay (ISMO), 91405 Orsay, France
| | - Erika Porcel
- Université Paris Saclay, CNRS, Institut des Sciences Moléculaires d'Orsay (ISMO), 91405 Orsay, France.
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Gallez B. The Role of Imaging Biomarkers to Guide Pharmacological Interventions Targeting Tumor Hypoxia. Front Pharmacol 2022; 13:853568. [PMID: 35910347 PMCID: PMC9335493 DOI: 10.3389/fphar.2022.853568] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Accepted: 06/23/2022] [Indexed: 12/12/2022] Open
Abstract
Hypoxia is a common feature of solid tumors that contributes to angiogenesis, invasiveness, metastasis, altered metabolism and genomic instability. As hypoxia is a major actor in tumor progression and resistance to radiotherapy, chemotherapy and immunotherapy, multiple approaches have emerged to target tumor hypoxia. It includes among others pharmacological interventions designed to alleviate tumor hypoxia at the time of radiation therapy, prodrugs that are selectively activated in hypoxic cells or inhibitors of molecular targets involved in hypoxic cell survival (i.e., hypoxia inducible factors HIFs, PI3K/AKT/mTOR pathway, unfolded protein response). While numerous strategies were successful in pre-clinical models, their translation in the clinical practice has been disappointing so far. This therapeutic failure often results from the absence of appropriate stratification of patients that could benefit from targeted interventions. Companion diagnostics may help at different levels of the research and development, and in matching a patient to a specific intervention targeting hypoxia. In this review, we discuss the relative merits of the existing hypoxia biomarkers, their current status and the challenges for their future validation as companion diagnostics adapted to the nature of the intervention.
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Affiliation(s)
- Bernard Gallez
- Biomedical Magnetic Resonance Research Group, Louvain Drug Research Institute, Université Catholique de Louvain (UCLouvain), Brussels, Belgium
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3
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Maswadeh H, Khan A, Alorainy MS, Al-Wabel NA, Demetzos C. In vitro and in vivo activity of thermosensitive liposomes loaded with doxorubicin and cisplatin. Drug Dev Ind Pharm 2022; 48:158-168. [PMID: 35834369 DOI: 10.1080/03639045.2022.2102648] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Thermosensitive liposomes loaded with cisplatin and doxorubicin composed of DPPC, DSPC, and DPPE-PEG5000 with different ratios were prepared by thin film hydration method. The Differential Scanning Calorimetry (DSC) curves showed that the liposomes composed of DPPC-DSPC-DPPE-PEG5000 with phospholipid ratio 95:5:0.05 w/w were a suitable formulation as thermosensitive liposomes with a DSC peak at 42.1 °C. The effect of doxorubicin and cisplatin encapsulated non-thermosensitive and thermosensitive liposomes on cellular proliferation and IC50 in SKBR3 & MDA-MB-231 breast cancer and PC-3 & LNcaP prostate cancer cell lines was investigated. The results showed that doxorubicin loaded into thermosensitive liposomes showed 20-fold decrease in the IC50 at 42 °C while comparing it with the same at 37 °C. Also, the results showed a more than 35-fold and 12-fold decrease in the IC50 of cisplatin thermosensitive liposomes at 42 °C, while compared with free cisplatin and cisplatin thermosensitive liposomes at any temperature. The in vivo results showed that the effect of doxorubicin encapsulated thermosensitive liposomes at hyperthermic conditions during the treatment as the tumor growth inhibition was measured 1.5-fold higher than any of the liposomal formulations of doxorubicin. It was also noticed that the tumor volume reduced to 150 mm3 in doxorubicin thermosensitive liposomes (G8) after 3 weeks during the treatment, but increased to 196 mm3 after 4 weeks. The Kaplan-Meir curve showed the 100% survival of the animals from G8 (thermosensitive liposomes containing doxorubicin plus hyperthermia) after 12 weeks. The flow cytometry data revealed more than 25% apoptotic cells and 6.25% necrotic cells in the tumor cells from the tissues of the G8 group of the animals. The results clearly indicate the superior efficacy of doxorubicin and cisplatin containing thermosensitive liposomes treatment during hyperthermia.
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Affiliation(s)
- Hamzah Maswadeh
- Department of Pharmaceutics, College of Pharmacy, Qassim University, Buraydah, 51452, Kingdom of Saudi Arabia
| | - Arif Khan
- Department of Basic Health Sciences, College of Applied Medical Sciences, Qassim University, Buraidah, Saudi Arabia
| | - Mohammed S Alorainy
- Department of Pharmacology and Therapeutics, College of Medicine, Qassim University, Buraydah, Kingdom of Saudi Arabia
| | - Naser A Al-Wabel
- Department of Veterinary Medicine, College of Agriculture and Veterinary Medicine, Qassim University, Buraidah, 51452 P.O.6622, Kingdom of Saudi Arabia
| | - Costas Demetzos
- Section of Pharmaceutical Technology, Department of Pharmacy, School of Health Sciences, National and Kapodistrian University of Athens, Panepistimioupolis Zografou, 15771 Athens, Greece
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4
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Wu L, Zhou W, Lin L, Chen A, Feng J, Qu X, Zhang H, Yue J. Delivery of therapeutic oligonucleotides in nanoscale. Bioact Mater 2022; 7:292-323. [PMID: 34466734 PMCID: PMC8379367 DOI: 10.1016/j.bioactmat.2021.05.038] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2021] [Revised: 04/28/2021] [Accepted: 05/22/2021] [Indexed: 02/07/2023] Open
Abstract
Therapeutic oligonucleotides (TOs) represent one of the most promising drug candidates in the targeted cancer treatment due to their high specificity and capability of modulating cellular pathways that are not readily druggable. However, efficiently delivering of TOs to cancer cellular targets is still the biggest challenge in promoting their clinical translations. Emerging as a significant drug delivery vector, nanoparticles (NPs) can not only protect TOs from nuclease degradation and enhance their tumor accumulation, but also can improve the cell uptake efficiency of TOs as well as the following endosomal escape to increase the therapeutic index. Furthermore, targeted and on-demand drug release of TOs can also be approached to minimize the risk of toxicity towards normal tissues using stimuli-responsive NPs. In the past decades, remarkable progresses have been made on the TOs delivery based on various NPs with specific purposes. In this review, we will first give a brief introduction on the basis of TOs as well as the action mechanisms of several typical TOs, and then describe the obstacles that prevent the clinical translation of TOs, followed by a comprehensive overview of the recent progresses on TOs delivery based on several various types of nanocarriers containing lipid-based nanoparticles, polymeric nanoparticles, gold nanoparticles, porous nanoparticles, DNA/RNA nanoassembly, extracellular vesicles, and imaging-guided drug delivery nanoparticles.
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Affiliation(s)
- Lei Wu
- School of Biomedical Engineering, Sun Yat-sen University, Guangzhou, 510006, Guangdong, China
| | - Wenhui Zhou
- Pharmaceutical Sciences Laboratory and Turku Bioscience Centre, Åbo Akademi University, Turku, 20520, Finland
- Southern Medical University Affiliated Fengxian Hospital, Shanghai, 201499, China
| | - Lihua Lin
- School of Biomedical Engineering, Sun Yat-sen University, Guangzhou, 510006, Guangdong, China
| | - Anhong Chen
- School of Biomedical Engineering, Sun Yat-sen University, Guangzhou, 510006, Guangdong, China
| | - Jing Feng
- Southern Medical University Affiliated Fengxian Hospital, Shanghai, 201499, China
| | - Xiangmeng Qu
- School of Biomedical Engineering, Sun Yat-sen University, Guangzhou, 510006, Guangdong, China
| | - Hongbo Zhang
- Pharmaceutical Sciences Laboratory and Turku Bioscience Centre, Åbo Akademi University, Turku, 20520, Finland
| | - Jun Yue
- School of Biomedical Engineering, Sun Yat-sen University, Guangzhou, 510006, Guangdong, China
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Afinjuomo F, Abdella S, Youssef SH, Song Y, Garg S. Inulin and Its Application in Drug Delivery. Pharmaceuticals (Basel) 2021; 14:ph14090855. [PMID: 34577554 PMCID: PMC8468356 DOI: 10.3390/ph14090855] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2021] [Revised: 08/24/2021] [Accepted: 08/24/2021] [Indexed: 02/06/2023] Open
Abstract
Inulin’s unique and flexible structure, stabilization/protective effects, and organ targeting ability make it an excellent drug delivery carrier compared to other biodegradable polysaccharides. The three hydroxyl groups attached to each fructose unit serve as an anchor for chemical modification. This, in turn, helps in increasing bioavailability, improving cellular uptake, and achieving targeted, sustained, and controlled release of drugs and biomolecules. This review focuses on the various types of inulin drug delivery systems such as hydrogel, conjugates, nanoparticles, microparticles, micelles, liposomes, complexes, prodrugs, and solid dispersion. The preparation and applications of the different inulin drug delivery systems are further discussed. This work highlights the fact that modification of inulin allows the use of this polymer as multifunctional scaffolds for different drug delivery systems.
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Affiliation(s)
| | | | | | | | - Sanjay Garg
- Correspondence: ; Tel.: +61-88-302-1575; Fax: +61-88-302-2389
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Photothermal photodynamic therapy and enhanced radiotherapy of targeting copolymer-coated liquid metal nanoparticles on liver cancer. Colloids Surf B Biointerfaces 2021; 207:112023. [PMID: 34403983 DOI: 10.1016/j.colsurfb.2021.112023] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2021] [Revised: 07/13/2021] [Accepted: 08/04/2021] [Indexed: 02/08/2023]
Abstract
The maximized therapeutic efficacy in tumor treatment can be achieved with combination therapy. Herein, a metronidazole (MN) and RGD peptides were linked with the copolymer chains of polyacrylic acid (PAA) and polyethylene glycol (PEG) by condensation and Michael addition reactions, respectively, named as RGD-PEG-PAA-MN. Subsequently, liquid-metal (LM) nanoparticles broken by ultrasonication were coated with modified copolymer, forming RGD-PEG-PAA-MN@LM nanoparticles. These nanoparticles with the degradation under an acidic condition could target to tumor cells, and LM of these composited nanoparticles could not only efficiently convert the photoenergy of near infrared (NIR) into thermal energy, but also produce more reactive oxygen species under NIR or X ray irradiation. Furthermore, MN in the composited nanoparticles could enhance their radiation sensitivity of tumor tissues with hypoxia condition. The synergic effect of these nanoparticles on cancer limitation after the sequential radiations of NIR and X ray was significantly higher than the single radiation. In the experiments of tumor bearing mice, the volume of the tumor in RGD-PEG-PAA-MN@LM group at 14th day after two radiations of NIR and X-ray were significantly smaller than LM group, and the tumor of RGD-PEG-PAA-MN@LM group at 14th day after two radiations almost disappeared, suggesting better synergistic effect of RGD-PEG-PAA-MN@LM nanoparticles on photothermal conversion, photodynamics under two irradiations and their enhanced sensitization of X-ray radiation. Our results indicated that the prepared nanoparticles would be applied in the combinational therapy of liver tumor by the photothermal, photodynamic and sensitized radiation.
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7
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Molecular and Functional Imaging and Theranostics of the Tumor Microenvironment. Mol Imaging 2021. [DOI: 10.1016/b978-0-12-816386-3.00069-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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8
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Jenner AL, Frascoli F, Coster ACF, Kim PS. Enhancing oncolytic virotherapy: Observations from a Voronoi Cell-Based model. J Theor Biol 2019; 485:110052. [PMID: 31626813 DOI: 10.1016/j.jtbi.2019.110052] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2018] [Revised: 09/13/2019] [Accepted: 10/14/2019] [Indexed: 02/07/2023]
Abstract
Oncolytic virotherapy is a promising cancer treatment using genetically modified viruses. Unfortunately, virus particles rapidly decay inside the body, significantly hindering their efficacy. In this article, treatment perturbations that could overcome obstacles to oncolytic virotherapy are investigated through the development of a Voronoi Cell-Based model (VCBM). The VCBM derived captures the interaction between an oncolytic virus and cancer cells in a 2-dimensional setting by using an agent-based model, where cell edges are designated by a Voronoi tessellation. Here, we investigate the sensitivity of treatment efficacy to the configuration of the treatment injections for different tumour shapes: circular, rectangular and irregular. The model predicts that multiple off-centre injections improve treatment efficacy irrespective of tumour shape. Additionally, we investigate delaying the infection of cancer cells by modifying viral particles with a substance such as alginate (a hydrogel polymer used in a range of cancer treatments). Simulations of the VCBM show that delaying the infection of cancer cells, and thus allowing more time for virus dissemination, can improve the efficacy of oncolytic virotherapy. The simulated treatment noticeably decreases the tumour size with no increase in toxicity. Improving oncolytic virotherapy in this way allows for a more effective treatment without changing its fundamental essence.
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Affiliation(s)
- Adrianne L Jenner
- School of Mathematics and Statistics, University of Sydney, Sydney, NSW, Australia.
| | - Federico Frascoli
- Department of Mathematics, Faculty of Science, Engineering and Technology, Swinburne University of Technology, Melbourne, VIC, Australia
| | - Adelle C F Coster
- School of Mathematics and Statistics, University of New South Wales, Sydney, NSW, Australia
| | - Peter S Kim
- School of Mathematics and Statistics, University of Sydney, Sydney, NSW, Australia.
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9
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Losartan treatment enhances chemotherapy efficacy and reduces ascites in ovarian cancer models by normalizing the tumor stroma. Proc Natl Acad Sci U S A 2019; 116:2210-2219. [PMID: 30659155 DOI: 10.1073/pnas.1818357116] [Citation(s) in RCA: 162] [Impact Index Per Article: 32.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
In ovarian cancer patients, tumor fibrosis and angiotensin-driven fibrogenic signaling have been shown to inversely correlate with survival. We sought to enhance drug delivery and therapeutic efficacy by remodeling the dense extracellular matrix in two orthotopic human ovarian carcinoma xenograft models. We hypothesized that targeting the angiotensin signaling axis with losartan, an approved angiotensin system inhibitor, could reduce extracellular matrix content and the associated "solid stress," leading to better anticancer therapeutic effect. We report here four translatable findings: (i) losartan treatment enhances the efficacy of paclitaxel-a drug used for ovarian cancer treatment-via normalizing the tumor microenvironment, resulting in improved vessel perfusion and drug delivery; (ii) losartan depletes matrix via inducing antifibrotic miRNAs that should be tested as candidate biomarkers of response or resistance to chemotherapy; (iii) although losartan therapy alone does not reduce tumor burden, it reduces both the incidence and the amount of ascites formed; and (iv) our retrospective analysis revealed that patients receiving angiotensin system inhibitors concurrently with standard treatment for ovarian cancer exhibited 30 mo longer overall survival compared with patients on other antihypertensives. Our findings provide the rationale and supporting data for a clinical trial on combined losartan and chemotherapy in ovarian cancer patients.
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10
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Islam MT, Reddy JN, Righetti R. A model-based approach to investigate the effect of elevated interstitial fluid pressure on strain elastography. Phys Med Biol 2018; 63:215011. [PMID: 30353890 DOI: 10.1088/1361-6560/aae572] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Finite element (FE) modeling provides a useful tool to understand the mechanical behavior of complex tissues, such as cancers, in a variety of testing conditions. Although a number of numerical and analytical models for cancerous tumors are retrievable in the literature, none of these models is capable of completely describing the behavior of a cancer embedded in a normal tissue in the conditions typical for an ultrasound elastography experiment. In this paper, we first design and implement a realistic FE model of the mechanical behavior of a cancer embedded in a normal tissue under ultrasound elastography testing conditions. In addition to the commonly used tissue mechanical properties, for the cancer, elevated interstitial fluid pressure (IFP) is incorporated in the model. IFP is a parameter of great clinical significance, but it is not typically considered in elastographic models of tumors. The developed model is then used to thoroughly study the effect of IFP on the axial, lateral and volumetric strains inside the tumor. The results of this study demonstrate that the presence of the IFP affects both the temporal and spatial distributions of the axial, lateral, volumetric strains and related elastographic parameters. Thus, these results lead to two important considerations: (1) that a correct interpretation of experimental elastographic data need a clear understanding of the effect of the IFP on the obtained elastograms and (2) that this IFP-dependent alteration of the elastographic parameters may provide an opportunity to non-invasively gain localized information about this clinically relevant parameter.
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Affiliation(s)
- Md Tauhidul Islam
- Department of Electrical and Computer Engineering, Texas A&M University, College Station, TX 77840, United States of America
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11
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Nanomedicines for developing cancer nanotherapeutics: from benchtop to bedside and beyond. Appl Microbiol Biotechnol 2018; 102:9449-9470. [DOI: 10.1007/s00253-018-9352-3] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2018] [Revised: 08/29/2018] [Accepted: 08/29/2018] [Indexed: 12/21/2022]
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12
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Stylianopoulos T, Munn LL, Jain RK. Reengineering the Physical Microenvironment of Tumors to Improve Drug Delivery and Efficacy: From Mathematical Modeling to Bench to Bedside. Trends Cancer 2018; 4:292-319. [PMID: 29606314 PMCID: PMC5930008 DOI: 10.1016/j.trecan.2018.02.005] [Citation(s) in RCA: 339] [Impact Index Per Article: 56.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2018] [Revised: 02/20/2018] [Accepted: 02/21/2018] [Indexed: 12/16/2022]
Abstract
Physical forces have a crucial role in tumor progression and cancer treatment. The application of principles of engineering and physical sciences to oncology has provided powerful insights into the mechanisms by which these forces affect tumor progression and confer resistance to delivery and efficacy of molecular, nano-, cellular, and immuno-medicines. Here, we discuss the mechanics of the solid and fluid components of a tumor, with a focus on how they impede the transport of therapeutic agents and create an abnormal tumor microenvironment (TME) that fuels tumor progression and treatment resistance. We also present strategies to reengineer the TME by normalizing the tumor vasculature and the extracellular matrix (ECM) to improve cancer treatment. Finally, we summarize various mathematical models that have provided insights into the physical barriers to cancer treatment and revealed new strategies to overcome these barriers.
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Affiliation(s)
- Triantafyllos Stylianopoulos
- Cancer Biophysics Laboratory, Department of Mechanical and Manufacturing Engineering, University of Cyprus, Nicosia, 1678, Cyprus.
| | - Lance L Munn
- Edwin L. Steele Laboratories, Department of Radiation Oncology, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA.
| | - Rakesh K Jain
- Edwin L. Steele Laboratories, Department of Radiation Oncology, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA.
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13
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Hu X, Liu R, Zhang D, Zhang J, Li Z, Luan Y. Rational Design of an Amphiphilic Chlorambucil Prodrug Realizing Self-Assembled Micelles for Efficient Anticancer Therapy. ACS Biomater Sci Eng 2018; 4:973-980. [PMID: 33418779 DOI: 10.1021/acsbiomaterials.7b00892] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The application of anticancer drug chlorambucil (CLB) in chemotherapy is severely restricted by its insolubility, lability, and toxic side effects; therefore, it is challenging to realize a highly efficient anticancer therapy of chlorambucil. To solve the above drawbacks encountered by chlorambucil, herein we proposed an amphiphilic chlorambucil prodrug-based self-assembled micelle strategy to realize the highly efficient anticancer therapy of chlorambucil. 1,6-Hexanediamine hydrochloride (HDH) serving as the hydrophilic segment was covalently bound to hydrophobic CLB to prepare an amphiphilic prodrug CLB-HDH which could self-assemble into micelles in aqueous solution. These micelles can passively target tumor tissues via the enhanced permeability and retention (EPR) effect, leading to enhanced cellular internalization. Both the cytotoxicity assay in vitro and anticancer study in vivo confirmed the excellent therapeutic activity of CLB-HDH micelles in comparison with free chlorambucil. Moreover, the hemolysis examination and histological analysis demonstrated the designed CLB-HDH micelles are safe in drug delivery. Therefore, our designed amphiphilic prodrug CLB-HDH micelles bring new opportunity for chlorambucil clinical application to combat cancers.
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Affiliation(s)
- Xu Hu
- School of Pharmaceutical Science, Shandong University, 44 West Wenhua Road, Jinan, Shandong Province 250012, P. R. China
| | - Ruiling Liu
- School of Pharmaceutical Science, Shandong University, 44 West Wenhua Road, Jinan, Shandong Province 250012, P. R. China
| | - Di Zhang
- School of Pharmaceutical Science, Shandong University, 44 West Wenhua Road, Jinan, Shandong Province 250012, P. R. China
| | - Jing Zhang
- School of Pharmaceutical Science, Shandong University, 44 West Wenhua Road, Jinan, Shandong Province 250012, P. R. China
| | - Zhonghao Li
- Key Laboratory of Colloid & Interface Chemistry, Shandong University, Ministry of Education, Jinan, Shandong Province 250100, P. R. China
| | - Yuxia Luan
- School of Pharmaceutical Science, Shandong University, 44 West Wenhua Road, Jinan, Shandong Province 250012, P. R. China
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14
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Miranda D, Carter K, Luo D, Shao S, Geng J, Li C, Chitgupi U, Turowski SG, Li N, Atilla-Gokcumen GE, Spernyak JA, Lovell JF. Multifunctional Liposomes for Image-Guided Intratumoral Chemo-Phototherapy. Adv Healthc Mater 2017; 6:10.1002/adhm.201700253. [PMID: 28504409 PMCID: PMC5568974 DOI: 10.1002/adhm.201700253] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2017] [Revised: 04/07/2017] [Indexed: 12/11/2022]
Abstract
Intratumoral (IT) drug injections reduce systemic toxicity, but delivered volumes and distribution can be inconsistent. To improve IT delivery paradigms, porphyrin-phospholipid (PoP) liposomes are passively loaded with three hydrophilic cargos: sulforhodamine B, a fluorophore; gadolinium-gadopentetic acid, a magnetic resonance (MR) agent; and oxaliplatin, a colorectal cancer chemotherapeutic. Liposome composition is optimized so that cargo is retained in serum and storage, but is released in less than 1 min with exposure to near infrared light. Light-triggered release occurs with PoP-induced photooxidation of unsaturated lipids and all cargos release concurrently. In subcutaneous murine colorectal tumors, drainage of released cargo is delayed when laser treatment occurs 24 h after IT injection, at doses orders of magnitude lower than systemic ones. Delayed light-triggering results in substantial tumor shrinkage relative to controls a week following treatment, although regrowth occurs subsequently. MR imaging reveals that over this time frame, pools of liposomes within the tumor migrate to adjacent regions, possibly leading to altered spatial distribution during triggered drug release. Although further characterization of cargo loading and release is required, this proof-of-principle study suggests that multimodal theranostic IT delivery approaches hold potential to both guide injections and interpret outcomes, in particular when combined with chemo-phototherapy.
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Affiliation(s)
- Dyego Miranda
- Department of Biomedical Engineering, University at Buffalo, State University of New York, Buffalo, NY 14260, USA
| | - Kevin Carter
- Department of Biomedical Engineering, University at Buffalo, State University of New York, Buffalo, NY 14260, USA
| | - Dandan Luo
- Department of Biomedical Engineering, University at Buffalo, State University of New York, Buffalo, NY 14260, USA
| | - Shuai Shao
- Department of Biomedical Engineering, University at Buffalo, State University of New York, Buffalo, NY 14260, USA
| | - Jumin Geng
- Department of Biomedical Engineering, University at Buffalo, State University of New York, Buffalo, NY 14260, USA
| | - Changning Li
- Department of Biomedical Engineering, University at Buffalo, State University of New York, Buffalo, NY 14260, USA
| | - Upendra Chitgupi
- Department of Biomedical Engineering, University at Buffalo, State University of New York, Buffalo, NY 14260, USA
| | - Steven G Turowski
- Department of Pharmacology and Therapeutics, Roswell Park Cancer Institute, Buffalo NY 14263, USA
| | - Nasi Li
- Department of Chemistry, University at Buffalo, State University of New York, Buffalo, NY 14260, USA
| | - G. Ekin Atilla-Gokcumen
- Department of Chemistry, University at Buffalo, State University of New York, Buffalo, NY 14260, USA
| | - Joseph A Spernyak
- Department of Department of Cell Stress Biology, Roswell Park Cancer Institute, Buffalo, NY 14263, USA
| | - Jonathan F Lovell
- Department of Biomedical Engineering, University at Buffalo, State University of New York, Buffalo, NY 14260, USA
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15
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Jablonowski LJ, Alfego D, Andorko JI, Eisenbrey JR, Teraphongphom N, Wheatley MA. Balancing stealth and echogenic properties in an ultrasound contrast agent with drug delivery potential. Biomaterials 2016; 103:197-206. [DOI: 10.1016/j.biomaterials.2016.06.036] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2015] [Revised: 06/09/2016] [Accepted: 06/17/2016] [Indexed: 12/16/2022]
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16
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Ulmschneider MB, Searson PC. Mathematical models of the steps involved in the systemic delivery of a chemotherapeutic to a solid tumor: From circulation to survival. J Control Release 2015; 212:78-84. [PMID: 26103439 DOI: 10.1016/j.jconrel.2015.06.026] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2015] [Revised: 06/18/2015] [Accepted: 06/19/2015] [Indexed: 11/29/2022]
Abstract
The efficacy of an intravenously administered chemotherapeutic for treatment of a solid tumor is dependent on a sequence of steps, including circulation, extravasation by the enhanced permeability and retention effect, transport in the tumor microenvironment, the mechanism of cellular uptake and trafficking, and the mechanism of drug action. These steps are coupled since the time dependent concentration in circulation determines the concentration and distribution in the tumor microenvironment, and hence the amount taken up by individual cells within the tumor. Models have been developed for each of the steps in the delivery process although their predictive power remains limited. Advances in our understanding of the steps in the delivery process will result in refined models with improvements in predictive power and ultimately allow the development of integrated models that link systemic administration of a drug to the probability of survival. Integrated models that predict outcomes based on patient specific data could be used to select the optimum therapeutic regimens. Here we present an overview of current models for the steps in the delivery process and highlight knowledge gaps that are key to developing integrated models.
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Affiliation(s)
- Martin B Ulmschneider
- Department of Materials Science and Engineering, Institute for Nanobiotechnology (INBT), Johns Hopkins University, Baltimore, MD 21218, United States; Department of Oncology, Johns Hopkins University School of Medicine, Baltimore, MD 21231
| | - Peter C Searson
- Department of Materials Science and Engineering, Institute for Nanobiotechnology (INBT), Johns Hopkins University, Baltimore, MD 21218, United States; Department of Oncology, Johns Hopkins University School of Medicine, Baltimore, MD 21231.
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17
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Aderibigbe BA. Polymeric Prodrugs Containing Metal-Based Anticancer Drugs. J Inorg Organomet Polym Mater 2015. [DOI: 10.1007/s10904-015-0220-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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18
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Xu Y, Geng J, An P, Xu Y, Huang J, Lu W, Liu S, Yu J. Cathepsin B-sensitive cholesteryl hemisuccinate–gemcitabine prodrug nanoparticles: enhanced cellular uptake and intracellular drug controlled release. RSC Adv 2015. [DOI: 10.1039/c4ra13870h] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Cholesteryl hemisuccinate–gemcitabine prodrug: enhanced cellular uptake and intracellular drug controlled release.
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Affiliation(s)
- Yanyun Xu
- Institute of Drug Discovery and Development
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development
- East China Normal University
- Shanghai 200062
- PR China
| | - Jianqi Geng
- College of Chemical Engineering
- Wuhan University of Technology
- Wuhan 430070
- PR China
| | - Ping An
- Institute of Drug Discovery and Development
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development
- East China Normal University
- Shanghai 200062
- PR China
| | - Yan Xu
- Institute of Drug Discovery and Development
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development
- East China Normal University
- Shanghai 200062
- PR China
| | - Jin Huang
- Institute of Drug Discovery and Development
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development
- East China Normal University
- Shanghai 200062
- PR China
| | - Wei Lu
- Institute of Drug Discovery and Development
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development
- East China Normal University
- Shanghai 200062
- PR China
| | - Shiyuan Liu
- Department of Diagnostic Imaging
- ChangZheng Hospital
- Shanghai
- PR China
| | - Jiahui Yu
- Institute of Drug Discovery and Development
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development
- East China Normal University
- Shanghai 200062
- PR China
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19
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Kyle AH, Baker JH, Gandolfo MJ, Reinsberg SA, Minchinton AI. Tissue Penetration and Activity of Camptothecins in Solid Tumor Xenografts. Mol Cancer Ther 2014; 13:2727-37. [DOI: 10.1158/1535-7163.mct-14-0475] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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20
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Dawidczyk CM, Kim C, Park JH, Russell LM, Lee KH, Pomper MG, Searson PC. State-of-the-art in design rules for drug delivery platforms: lessons learned from FDA-approved nanomedicines. J Control Release 2014; 187:133-44. [PMID: 24874289 DOI: 10.1016/j.jconrel.2014.05.036] [Citation(s) in RCA: 354] [Impact Index Per Article: 35.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2014] [Revised: 05/14/2014] [Accepted: 05/17/2014] [Indexed: 12/14/2022]
Abstract
The ability to efficiently deliver a drug to a tumor site is dependent on a wide range of physiologically imposed design constraints. Nanotechnology provides the possibility of creating delivery vehicles where these design constraints can be decoupled, allowing new approaches for reducing the unwanted side effects of systemic delivery, increasing targeting efficiency and efficacy. Here we review the design strategies of the two FDA-approved antibody-drug conjugates (Brentuximab vedotin and Trastuzumab emtansine) and the four FDA-approved nanoparticle-based drug delivery platforms (Doxil, DaunoXome, Marqibo, and Abraxane) in the context of the challenges associated with systemic targeted delivery of a drug to a solid tumor. The lessons learned from these nanomedicines provide an important insight into the key challenges associated with the development of new platforms for systemic delivery of anti-cancer drugs.
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Affiliation(s)
- Charlene M Dawidczyk
- Institute for Nanobiotechnology, Johns Hopkins University, 3400 North Charles Street, Baltimore, MD 21218, USA; Johns Hopkins Center of Cancer Nanotechnology Excellence, 100 Croft Hall, Johns Hopkins University, 3400 North Charles Street, Baltimore, MD 21218, USA.; Department of Materials Science and Engineering, Johns Hopkins University, 3400 North Charles Street, Baltimore, MD 21218, USA
| | - Chloe Kim
- Institute for Nanobiotechnology, Johns Hopkins University, 3400 North Charles Street, Baltimore, MD 21218, USA; Johns Hopkins Center of Cancer Nanotechnology Excellence, 100 Croft Hall, Johns Hopkins University, 3400 North Charles Street, Baltimore, MD 21218, USA.; Department of Materials Science and Engineering, Johns Hopkins University, 3400 North Charles Street, Baltimore, MD 21218, USA
| | - Jea Ho Park
- Institute for Nanobiotechnology, Johns Hopkins University, 3400 North Charles Street, Baltimore, MD 21218, USA; Johns Hopkins Center of Cancer Nanotechnology Excellence, 100 Croft Hall, Johns Hopkins University, 3400 North Charles Street, Baltimore, MD 21218, USA.; Department of Materials Science and Engineering, Johns Hopkins University, 3400 North Charles Street, Baltimore, MD 21218, USA
| | - Luisa M Russell
- Institute for Nanobiotechnology, Johns Hopkins University, 3400 North Charles Street, Baltimore, MD 21218, USA; Johns Hopkins Center of Cancer Nanotechnology Excellence, 100 Croft Hall, Johns Hopkins University, 3400 North Charles Street, Baltimore, MD 21218, USA.; Department of Materials Science and Engineering, Johns Hopkins University, 3400 North Charles Street, Baltimore, MD 21218, USA
| | - Kwan Hyi Lee
- KIST Biomedical Research Institute, 5 Hwarangno 14-gil, Seongbuk-gu, Seoul 136-791, Republic of Korea
| | - Martin G Pomper
- Institute for Nanobiotechnology, Johns Hopkins University, 3400 North Charles Street, Baltimore, MD 21218, USA; Johns Hopkins Center of Cancer Nanotechnology Excellence, 100 Croft Hall, Johns Hopkins University, 3400 North Charles Street, Baltimore, MD 21218, USA.; Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins School of Medicine, Baltimore, MD 21231, USA.
| | - Peter C Searson
- Institute for Nanobiotechnology, Johns Hopkins University, 3400 North Charles Street, Baltimore, MD 21218, USA; Johns Hopkins Center of Cancer Nanotechnology Excellence, 100 Croft Hall, Johns Hopkins University, 3400 North Charles Street, Baltimore, MD 21218, USA.; Department of Materials Science and Engineering, Johns Hopkins University, 3400 North Charles Street, Baltimore, MD 21218, USA.
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21
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Toley BJ, Tropeano Lovatt ZG, Harrington JL, Forbes NS. Microfluidic technique to measure intratumoral transport and calculate drug efficacy shows that binding is essential for doxorubicin and release hampers Doxil. Integr Biol (Camb) 2014; 5:1184-96. [PMID: 23860772 DOI: 10.1039/c3ib40021b] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Intratumoral transport and binding are important mechanisms that determine the efficacy of cancer drugs. Current drug screening methods rely heavily on monolayers of cancer cells, which overlook the contribution of tissue-level transport and binding. To quantify these factors, we developed a method that couples an in vitro, drug-delivery device containing a three-dimensional cell mass and a mathematical model of drug diffusion, binding to DNA, release from carriers, and clearance. Spheroids derived from LS174T human colon carcinoma cells were inserted into rectangular chambers to form rectangular cell masses (tissue) and subjected to continuous medium perfusion. To simulate drug delivery and clearance, the tissues were treated with doxorubicin followed by drug-free medium. To evaluate the effect of liposome encapsulation, tissues were treated with liposome-encapsulated doxorubicin (Doxil). Spatiotemporal dynamics of drug distribution and apoptosis was measured by fluorescence microscopy. The diffusivity and DNA binding constant of doxorubicin were determined by fitting experimental data to the mathematical model. Results show that an ideal combination of diffusivity, binding constant, clearance rate, and cytotoxicity contribute to the high therapeutic efficacy of doxorubicin. There was no detectable release of doxorubicin from Doxil in the tissues. The rate of doxorubicin release, evaluated by fitting experimental data to the mathematical model, was below therapeutically effective levels. These results show that despite enhanced systemic circulation obtained by liposome encapsulation, the therapeutic effect of Doxil is limited by slow intratumoral drug release. The experimental and computational methods developed here to calculate drug efficacy provide mechanisms to explain poor performance of drug candidates, and enable design of more successful cancer drugs.
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Affiliation(s)
- Bhushan J Toley
- Department of Chemical Engineering, University of Massachusetts, Amherst, 159 Goessmann Laboratory, 686 North Pleasant Street, Amherst, MA 01003-9303, USA.
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22
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Abstract
Though much progress has been made in drug delivery systems, the design of a suitable carrier for the delivery of hydrophobic drugs is still a major challenge for researchers.
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Affiliation(s)
- Zaheer Ahmad
- Department of Chemistry
- Quaid-i-Azam University
- Islamabad, Pakistan
| | - Afzal Shah
- Department of Chemistry
- Quaid-i-Azam University
- Islamabad, Pakistan
- Department of Physical and Environmental Sciences
- University of Toronto
| | - Muhammad Siddiq
- Department of Chemistry
- Quaid-i-Azam University
- Islamabad, Pakistan
| | - Heinz-Bernhard Kraatz
- Department of Physical and Environmental Sciences
- University of Toronto
- Toronto, Canada
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23
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Meng H, Xu K, Xu Y, Luo P, Du F, Huang J, Lu W, Yu J, Liu S, Muir B. Nanocapsules based on mPEGylated artesunate prodrug and its cytotoxicity. Colloids Surf B Biointerfaces 2013; 115:164-9. [PMID: 24334269 DOI: 10.1016/j.colsurfb.2013.11.039] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2013] [Revised: 11/19/2013] [Accepted: 11/19/2013] [Indexed: 12/20/2022]
Abstract
mPEGylated artesunate prodrug was synthesized via esterification between poly(ethylene glycol) monomethyl ether (mPEG) and artesunate (ART). The product was inclined to form nanocapsules in aqueous media due to its amphiphilic nature. These nanocapsules showed narrow size distribution, with an average particle size of 88.7 nm measured by dynamic laser scattering (DLS). Their vesical morphology was further confirmed by transmission electron microscopy (TEM). We found that the release of ART from the nanocapsules was controllable, which was contributed to the easily hydrolyzed property of the ester bond. In addition, the cytotoxicity of the prodrug against L1210 and MCF7 cell lines showed an essential decrease compared with the free ART. These results present a new strategy in designing anti-tumor ART nanocapsules for targeting tumor cells.
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Affiliation(s)
- Haijing Meng
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, East China Normal University, Shanghai 200062, PR China
| | - Ke Xu
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, East China Normal University, Shanghai 200062, PR China
| | - Yanyun Xu
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, East China Normal University, Shanghai 200062, PR China
| | - Ping Luo
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, East China Normal University, Shanghai 200062, PR China
| | - Fang Du
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, East China Normal University, Shanghai 200062, PR China
| | - Jin Huang
- College of Chemical Engineering, Wuhan University of Technology, Wuhan 430070, PR China
| | - Wei Lu
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, East China Normal University, Shanghai 200062, PR China
| | - Jiahui Yu
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, East China Normal University, Shanghai 200062, PR China.
| | - Shiyuan Liu
- Department of Diagnostic Imaging, Changzheng Hospital, Shanghai 200003, PR China
| | - Ben Muir
- The Commonwealth Scientific and Industrial Research Organisation, Bayview Avenue, Bag 10, Clayton South, Melbourne, Victoria 3169, Australia
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24
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Choi IK, Strauss R, Richter M, Yun CO, Lieber A. Strategies to increase drug penetration in solid tumors. Front Oncol 2013; 3:193. [PMID: 23898462 PMCID: PMC3724174 DOI: 10.3389/fonc.2013.00193] [Citation(s) in RCA: 109] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2013] [Accepted: 07/11/2013] [Indexed: 12/31/2022] Open
Abstract
Despite significant improvement in modalities for treatment of cancer that led to a longer survival period, the death rate of patients with solid tumors has not changed during the last decades. Emerging studies have identified several physical barriers that limit the therapeutic efficacy of cancer therapeutic agents such as monoclonal antibodies, chemotherapeutic agents, anti-tumor immune cells, and gene therapeutics. Most solid tumors are of epithelial origin and, although malignant cells are de-differentiated, they maintain intercellular junctions, a key feature of epithelial cells, both in the primary tumor as well as in metastatic lesions. Furthermore, nests of malignant epithelial tumor cells are shielded by layers of extracellular matrix (ECM) proteins (e.g., collagen, elastin, fibronectin, laminin) whereby tumor vasculature rarely penetrates into the tumor nests. In this chapter, we will review potential strategies to modulate the ECM and epithelial junctions to enhance the intratumoral diffusion and/or to remove physical masking of target receptors on malignant cells. We will focus on peptides that bind to the junction protein desmoglein 2 and trigger intracellular signaling, resulting in the transient opening of intercellular junctions. Intravenous injection of these junction openers increased the efficacy and safety of therapies with monoclonal antibodies, chemotherapeutics, and T cells in mouse tumor models and was safe in non-human primates. Furthermore, we will summarize approaches to transiently degrade ECM proteins or downregulate their expression. Among these approaches is the intratumoral expression of relaxin or decorin after adenovirus- or stem cell-mediated gene transfer. We will provide examples that relaxin-based approaches increase the anti-tumor efficacy of oncolytic viruses, monoclonal antibodies, and T cells.
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Affiliation(s)
- Il-Kyu Choi
- Department of Bioengineering, College of Engineering, Hanyang University , Seoul , South Korea
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25
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Ziadloo A, Xie J, Frenkel V. Pulsed focused ultrasound exposures enhance locally administered gene therapy in a murine solid tumor model. THE JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA 2013; 133:1827-34. [PMID: 23464051 PMCID: PMC3606298 DOI: 10.1121/1.4789390] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
Gene therapy by intratumoral injection is a promising approach for treating solid tumors. However, this approach has limited success due to insufficient distribution of gene vectors used for gene delivery. Previous studies have shown that pulsed-focused ultrasound (pFUS) can enhance both systemic and local delivery of therapeutic agents in solid tumors and other disease models. Here, murine squamous cell carcinoma flank tumors were treated with single intratumoral injection of naked tumor necrosis factor-alpha (TNF-α) plasmid, either with or without a preceding pFUS exposure. The exposures were given at 1 MHz, at a spatial average, temporal peak intensity of 2660 W cm(-2), using 50 ms pulses, given at a pulse repetition frequency of 1 Hz. One hundred pulses were given at individual raster points, spaced evenly over the projected surface of the tumor at a distance of 2 mm. Exposures alone had no effect on tumor growth. Significant growth inhibition was observed with injection of TNF-α plasmid, and tumor growth was further inhibited with pFUS. Improved results with pFUS correlated with larger necrotic regions in histological sections and improved distribution and penetration of fluorescent surrogate nanoparticles. Electron microscopy demonstrated enlarged gaps between cells in exposed tissue, and remote acoustic palpation showed decreases in tissue stiffness after pFUS. Combined, these results suggest pFUS effects may be reducing barriers for tissue transport and additionally lowering interstitial fluid pressure to further improve delivery and distribution of injected plasmid for greater therapeutic effects. This suggests that pFUS could potentially be beneficial for improving local gene therapy treatment of human malignancies.
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Affiliation(s)
- Ali Ziadloo
- Molecular Imaging Lab, Department of Radiology and Imaging Sciences, Clinical Center, National Institutes of Health, 10 Center Drive, Bethesda, Maryland 20892, USA
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26
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Hudson R, Boyle RW. Strategies for selective delivery of photodynamic sensitisers to biological targets. J PORPHYR PHTHALOCYA 2012. [DOI: 10.1142/s1088424604000325] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Strategies for increasing the affinity of photodynamic sensitisers for specific tissues, cells and organisms are reviewed. Biological outcomes are evaluated and therapeutic potential assessed.
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Affiliation(s)
- Robert Hudson
- Photobiology & Photomedicine Group, Department of Chemistry, University of Hull, Cottingham Road, Hull, East Yorkshire HU6 7RX, United Kingdom
| | - Ross W. Boyle
- Photobiology & Photomedicine Group, Department of Chemistry, University of Hull, Cottingham Road, Hull, East Yorkshire HU6 7RX, United Kingdom
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27
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Zarogoulidis P, Chatzaki E, Porpodis K, Domvri K, Hohenforst-Schmidt W, Goldberg EP, Karamanos N, Zarogoulidis K. Inhaled chemotherapy in lung cancer: future concept of nanomedicine. Int J Nanomedicine 2012; 7:1551-72. [PMID: 22619512 PMCID: PMC3356182 DOI: 10.2147/ijn.s29997] [Citation(s) in RCA: 131] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
Regional chemotherapy was first used for lung cancer 30 years ago. Since then, new methods of drug delivery and pharmaceuticals have been investigated in vitro, and in animals and humans. An extensive review of drug delivery systems, pharmaceuticals, patient monitoring, methods of enhancing inhaled drug deposition, safety and efficacy, and also additional applications of inhaled chemotherapy and its advantages and disadvantages are presented. Regional chemotherapy to the lung parenchyma for lung cancer is feasible and efficient. Safety depends on the chemotherapy agent delivered to the lungs and is dose-dependent and time-dependent. Further evaluation is needed to provide data regarding early lung cancer stages, and whether regional chemotherapy can be used as neoadjuvant or adjuvant treatment. Finally, inhaled chemotherapy could one day be administered at home with fewer systemic adverse effects.
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Affiliation(s)
- Paul Zarogoulidis
- Pulmonary Department, G Papanikolaou General Hospital, Aristotle University of Thessaloniki, Greece.
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28
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Drug Release Patterns and Cytotoxicity of PEG-poly(aspartate) Block Copolymer Micelles in Cancer Cells. Pharm Res 2012; 29:1755-67. [DOI: 10.1007/s11095-012-0697-5] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2011] [Accepted: 01/27/2012] [Indexed: 12/22/2022]
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29
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Wang Y, Perentes JY, Schafer SC, Gonzalez M, Debefve E, Lehr HA, van den Bergh H, Krueger T. Photodynamic drug delivery enhancement in tumours does not depend on leukocyte-endothelial interaction in a human mesothelioma xenograft model. Eur J Cardiothorac Surg 2012; 42:348-54. [DOI: 10.1093/ejcts/ezr294] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
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30
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31
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Freichels H, Auzély-Velty R, Lecomte P, Jérôme C. Easy functionalization of amphiphilic poly(ethylene oxide)-b-poly(ε-caprolactone) copolymer micelles with unprotected sugar: synthesis and recognition by lectins. Polym Chem 2012. [DOI: 10.1039/c2py00572g] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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32
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Kyle AH, Baker JH, Minchinton AI. Targeting Quiescent Tumor Cells via Oxygen and IGF-I Supplementation. Cancer Res 2011; 72:801-9. [DOI: 10.1158/0008-5472.can-11-3059] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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33
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Akter S, Clem BF, Lee HJ, Chesney J, Bae Y. Block Copolymer Micelles for Controlled Delivery of Glycolytic Enzyme Inhibitors. Pharm Res 2011; 29:847-55. [DOI: 10.1007/s11095-011-0613-4] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2011] [Accepted: 10/17/2011] [Indexed: 12/01/2022]
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34
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Numerical study of nanofluid infusion in deformable tissues for hyperthermia cancer treatments. Med Biol Eng Comput 2011; 49:1233-40. [DOI: 10.1007/s11517-011-0819-y] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2011] [Accepted: 07/31/2011] [Indexed: 01/30/2023]
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35
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Polymer Micelles with Hydrazone-Ester Dual Linkers for Tunable Release of Dexamethasone. Pharm Res 2011; 28:2435-46. [DOI: 10.1007/s11095-011-0470-1] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2011] [Accepted: 05/03/2011] [Indexed: 10/18/2022]
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36
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Gary DJ, Lee H, Sharma R, Lee JS, Kim Y, Cui ZY, Jia D, Bowman VD, Chipman PR, Wan L, Zou Y, Mao G, Park K, Herbert BS, Konieczny SF, Won YY. Influence of nano-carrier architecture on in vitro siRNA delivery performance and in vivo biodistribution: polyplexes vs micelleplexes. ACS NANO 2011; 5:3493-505. [PMID: 21456626 PMCID: PMC3381331 DOI: 10.1021/nn102540y] [Citation(s) in RCA: 86] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
Micelle-based siRNA carriers ("micelleplexes") were prepared from the A-B-C triblock copolymer poly(ethylene glycol)-poly(n-butyl acrylate)-poly(2-(dimethylamino)ethyl methacrylate) (PEG-PnBA-PDMAEMA), and their in vitro performance and in vivo biodistribution properties were compared with the benchmark PEGylated and basic polycation systems PEG-PDMAEMA and PDMAEMA, respectively. The micelle architecture, incorporating increased PEG shielding and a larger particle size (∼50 nm) than polycation-based complexes (polyplexes; ∼10 nm), enhances siRNA delivery performance in two important aspects: in vitro gene silencing efficiency and in vivo tumor accumulation. The in vitro gene silencing efficiency of the micelleplexes (24% in HeLa cells) was significantly better than the statistically insignificant levels observed for PDMAEMA and PEG-PDMAEMA polyplexes under identical conditions. This enhancement is linked to the different mechanisms by which micelleplexes are internalized (i.e., caveolar, etc.) compared to PDMAEMA and PEG-PDMAEMA polyplexes. Folate-functionalization significantly improved micelleplex uptake but had negligible influence on gene-silencing efficiency, suggesting that this parameter is not limited by cellular internalization. In vivo biodistribution analysis revealed that siRNA delivered by micelleplexes was more effectively accumulated and retained in tumor tissues than that delivered by PEGylated polyplexes. Overall, the micelle particle size and architecture appear to improve in vitro and in vivo delivery characteristics without significantly changing other properties, such as cytotoxicity and resistance to enzymes and dissociation. The self-assembled nature of micelleplexes is expected to enable incorporation of imaging modalities inside the hydrophobic micelle core, thus combining therapeutic and diagnostic capabilities. The findings from the present study suggest that the micelleplex-type carrier architecture is a useful platform for potential theranostic and tumor-targeting applications.
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Affiliation(s)
- Dana J. Gary
- School of Chemical Engineering, Purdue University, West Lafayette, Indiana 47907
| | - Hoyoung Lee
- School of Chemical Engineering, Purdue University, West Lafayette, Indiana 47907
| | - Rahul Sharma
- School of Chemical Engineering, Purdue University, West Lafayette, Indiana 47907
| | - Jae-Sung Lee
- School of Chemical Engineering, Purdue University, West Lafayette, Indiana 47907
| | - Youngwook Kim
- Medical Nanoelement Development Center, Samsung Medical Center, Seoul, Korea 135-710
| | - Zheng Yun Cui
- Medical Nanoelement Development Center, Samsung Medical Center, Seoul, Korea 135-710
| | - Di Jia
- Department of Biological Sciences, Purdue University, West Lafayette, Indiana 47907
| | - Valorie D. Bowman
- Department of Biological Sciences, Purdue University, West Lafayette, Indiana 47907
| | - Paul R. Chipman
- Department of Biological Sciences, Purdue University, West Lafayette, Indiana 47907
| | - Lei Wan
- Department of Chemical Engineering and Materials Science, Wayne State University, Detroit, Michigan 48202
| | - Yi Zou
- Department of Chemical Engineering and Materials Science, Wayne State University, Detroit, Michigan 48202
| | - Guangzhao Mao
- Department of Chemical Engineering and Materials Science, Wayne State University, Detroit, Michigan 48202
| | - Keunchil Park
- Medical Nanoelement Development Center, Samsung Medical Center, Seoul, Korea 135-710
- Department of Hematology and Oncology, Samsung Medical Center, Seoul, Korea 135-710
| | - Brittney-Shea Herbert
- Department of Medical and Molecular Genetics, Indiana University School of Medicine, Indianapolis, Indiana 46202
| | - Stephen F. Konieczny
- Department of Biological Sciences, Purdue University, West Lafayette, Indiana 47907
| | - You-Yeon Won
- School of Chemical Engineering, Purdue University, West Lafayette, Indiana 47907
- To whom correspondence should be addressed.
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37
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Zhang H, Verkman AS. Microfiberoptic measurement of extracellular space volume in brain and tumor slices based on fluorescent dye partitioning. Biophys J 2010; 99:1284-91. [PMID: 20713014 DOI: 10.1016/j.bpj.2010.06.023] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2010] [Revised: 05/24/2010] [Accepted: 06/03/2010] [Indexed: 01/24/2023] Open
Abstract
The fractional volume occupied by extracellular space in tissues, termed alpha, is an important parameter of tissue architecture that affects cellular functions and drug delivery. We report a technically simple fluorescent dye partitioning method to measure alpha in tissue slices based on microfiberoptic detection of dye fluorescence in tissue versus overlying solution. Microfiberoptic tip geometry and dyes were selected for alpha determination from fluorescence intensity ratios, without the need to correct for illumination profile, light scattering/absorption, or dye binding. The method was validated experimentally using cell-embedded gels of specified alpha-values and optical properties. In mouse brain slices, alpha was strongly location-dependent, ranging from 0.16 in thalamus to 0.22 in brainstem, and was sensitive to cell volume changes. Aquaporin-4 water channel gene deletion caused significant extracellular space expansion, with alpha = 0.181 +/- 0.002 in cortex in wild-type mice and 0.211 +/- 0.003 in Aquaporin-4 knockout mice. In slices of LLC1 cell tumors grown in mice to approximately 5 mm diameter, alpha decreased remarkably from approximately 0.45 in superficial tumor to <0.25 in deeper (>100 mum) tumor. Fluorescent dye partitioning with microfiberoptic detection permits rapid, accurate, and anisotropy-insensitive determination of alpha-values in tissue slices.
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Affiliation(s)
- Hua Zhang
- Department of Medicine and Department of Physiology, University of California, San Francisco, California, USA
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38
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Zhao Y, Sun Y, Zang Z, Xu X, Zhang Z, Zhong L, Zan W, Zhao Y, Sun L. Synthesis and characterization of graft copolymer of chitosan and polyethylene glycol. Mol Biol Rep 2010; 38:2455-62. [DOI: 10.1007/s11033-010-0381-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2010] [Accepted: 11/08/2010] [Indexed: 11/29/2022]
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39
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Jiao Z, Liu N, Chen Z. Selection suitable solvents to prepare paclitaxel-loaded micelles by solvent evaporation method. Pharm Dev Technol 2010; 17:164-9. [PMID: 20977318 DOI: 10.3109/10837450.2010.529146] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Amphiphilic block copolymer micelle is one of the most important drug delivery systems to improve the water-solubility of lipophilic drugs. Blank micelles were prepared by solvent evaporation method in order to choose the suitable solvents for PBMA-b-PMPC (poly(n-butyl methacrylate)-b-poly(2-methacryloyloxyethyl phosphorylcholine)) copolymer micelles. The selected solvents, which include chloroform/ethanol mixture and ScCO(2), were used to prepare the paclitaxel-loaded micelles. The micelles with high drug encapsulation efficiency and drug-loading content showed both narrow size distribution and regularly spherical shape. In vitro drug release studies indicated that paclitaxel could be slowly and continuously released from the micelles. More than 50% incorporated drug was released within 132 h from the micelles prepared using ScCO(2) as solvent while only 20% was released at the same period from those prepared using chloroform/ethanol mixture. In addition, the environmentally-friendly solvent, ScCO(2), was used for the first time to prepare the paclitaxel-loaded micelles during the solvent evaporation process.
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Affiliation(s)
- Zhen Jiao
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, PR China
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40
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Davaran S, Asgari D, Rashidi MR, Salehi R, Omidi Y. Synthesis, characterization, and drug-release behavior of novel PEGylated bovine serum albumin as a carrier for anticancer agents. J Appl Polym Sci 2010. [DOI: 10.1002/app.32858] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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41
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Su D, Ma R, Salloum M, Zhu L. Multi-scale study of nanoparticle transport and deposition in tissues during an injection process. Med Biol Eng Comput 2010; 48:853-63. [DOI: 10.1007/s11517-010-0615-0] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2009] [Accepted: 04/12/2010] [Indexed: 11/28/2022]
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42
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Chemin C, Péan JM, Pape AL, Delbos JM, German-Fattal M, Wüthrich P, Couvreur P. Biodistribution and anticancer activity of a newvincaalkaloid encapsulated into long-circulating liposomes. J Liposome Res 2010; 20:62-72. [DOI: 10.3109/08982100903103888] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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43
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Kawahira H, Matsushita K, Shiratori T, Shimizu T, Nabeya Y, Hayashi H, Ochiai T, Matsubara H, Shimada H. Viral shedding after p53 adenoviral gene therapy in 10 cases of esophageal cancer. Cancer Sci 2010; 101:289-91. [PMID: 20175784 PMCID: PMC11159950 DOI: 10.1111/j.1349-7006.2009.01381.x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2009] [Revised: 09/03/2009] [Accepted: 09/22/2009] [Indexed: 11/28/2022] Open
Abstract
We detected adenoviral DNA fragments in excretions of 10 esophageal cancer patients by DNA-PCR after tumor injection of Ad-CMV-vector. A total of 220 samples consisting of feces, gargling saliva, urine, and blood plasma were assessed. A total of 29.7% of feces samples and 13.2% of gargling saliva samples were positive for adenoviral DNA fragments, but 89.7% of the positive feces samples and all of the positive gargling saliva samples turned negative on day 12 after tumor injection. Although adenoviral DNA fragments may be pathogen-free, patients' feces and gargling saliva contain adenoviral DNA fragments for 12 days after injection.
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Affiliation(s)
- Hiroshi Kawahira
- Department of Frontier Surgery, Chiba University Graduate School of Medicine, Chuoh-ku, Chiba, Japan
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44
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Sequential administration with oxaliplatin-containing PEG-coated cationic liposomes promotes a significant delivery of subsequent dose into murine solid tumor. J Control Release 2009; 142:167-73. [PMID: 19861140 DOI: 10.1016/j.jconrel.2009.10.020] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2009] [Revised: 09/27/2009] [Accepted: 10/19/2009] [Indexed: 11/22/2022]
Abstract
Recently, we designed a PEG-coated cationic liposome to achieve dual targeting delivery of l-OHP to both tumor endothelial cells and tumor cells in a solid tumor. The targeted liposomal l-OHP formulation showed an efficient antitumor activity in a murine tumor model after three sequential liposomal l-OHP injections. This led us to assume that prior dosing with liposomes might enhance the intra-tumoral accumulation of a subsequent dose, and hence improve the therapeutic efficacy of entrapped l-OHP. The present study shows that while a single liposomal l-OHP injection does not enhance tumor accumulation of subsequent test-PEG-coated cationic liposomes, two sequential injections of liposomal l-OHP do. Cumulative cytotoxic effects of l-OHP delivered by PEG-coated cationic liposomes led to deep diffusion of a subsequent dose of liposomal l-OHP in solid tumor presumably as a result of the enlarged intra-tumoral interstitial space. Our study suggests that sequential injections of a targeted liposomal anticancer drug is of significant clinical and practical importance in enhancing the delivery of adequate quantities of anticancer agents into intractable solid tumors, and thereby may achieve a significant anticancer efficacy.
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45
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Bae Y, Kataoka K. Intelligent polymeric micelles from functional poly(ethylene glycol)-poly(amino acid) block copolymers. Adv Drug Deliv Rev 2009; 61:768-84. [PMID: 19422866 DOI: 10.1016/j.addr.2009.04.016] [Citation(s) in RCA: 479] [Impact Index Per Article: 31.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2008] [Accepted: 04/29/2009] [Indexed: 11/15/2022]
Abstract
This review describes our recent efforts on the design and preparation of intelligent polymeric micelles from functional poly(ethylene glycol)-poly(amino acid) (PEG-PAA) block copolymers. The polymeric micelles feature a spherical sub-100 nm core-shell structure in which anticancer drugs are loaded avoiding undesirable interactions in vivo. Chemical modification of the core-forming block of PEG-PAA with a hydrazone linkage allows the polymeric micelles to release drugs selectively at acidic pH (4-6). Installation of folic acids on the micelle surface improves cancer cell-specific drug delivery efficiency along with pH-controlled drug release. These intelligent micelles appear to be superior over classical micelles that physically incorporate drugs. Studies showed both controlled drug release and targeted delivery features of the micelles reduced toxicity and improved efficacy significantly. Further developments potentiate combination delivery of multiple drugs using mixed micelles. Therefore clinically relevant performance of the polymeric micelles provides a promising approach for more efficient and patient-friendly cancer therapy.
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Affiliation(s)
- Younsoo Bae
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Kentucky, 725 Rose Street, Lexington, KY 40536, USA
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46
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Chu H, Liu N, Wang X, Jiao Z, Chen Z. Morphology and in vitro release kinetics of drug-loaded micelles based on well-defined PMPC–b–PBMA copolymer. Int J Pharm 2009; 371:190-6. [DOI: 10.1016/j.ijpharm.2008.12.033] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2008] [Revised: 12/10/2008] [Accepted: 12/21/2008] [Indexed: 10/21/2022]
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47
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Infarction of tumor vessels by NGR-peptide-directed targeting of tissue factor: experimental results and first-in-man experience. Blood 2009; 113:5019-27. [PMID: 19179306 DOI: 10.1182/blood-2008-04-150318] [Citation(s) in RCA: 105] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
We induced thrombosis of blood vessels in solid tumors in mice by a fusion protein consisting of the extracellular domain of tissue factor (truncated tissue factor, tTF) and the peptide GNGRAHA, targeting aminopeptidase N (CD13) and the integrin alpha(v)beta(3) (CD51/CD61) on tumor vascular endothelium. The designed fusion protein tTF-NGR retained its thrombogenic activity as demonstrated by coagulation assays. In vivo studies in mice bearing established human adenocarcinoma (A549), melanoma (M21), and fibrosarcoma (HT1080) revealed that systemic administration of tTF-NGR induced partial or complete thrombotic occlusion of tumor vessels as shown by histologic analysis. tTF-NGR, but not untargeted tTF, induced significant tumor growth retardation or regression in all 3 types of solid tumors. Thrombosis induction in tumor vessels by tTF-NGR was also shown by contrast enhanced magnetic resonance imaging (MRI). In the human fibrosarcoma xenograft model, MRI revealed a significant reduction of tumor perfusion by administration of tTF-NGR. Clinical first-in-man application of low dosages of this targeted coagulation factor revealed good tolerability and decreased tumor perfusion as measured by MRI. Targeted thrombosis in the tumor vasculature induced by tTF-NGR may be a promising strategy for the treatment of cancer.
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48
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Galmarini CM, Warren G, Kohli E, Zeman A, Mitin A, Vinogradov SV. Polymeric nanogels containing the triphosphate form of cytotoxic nucleoside analogues show antitumor activity against breast and colorectal cancer cell lines. Mol Cancer Ther 2008; 7:3373-80. [PMID: 18852140 DOI: 10.1158/1535-7163.mct-08-0616] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
The therapeutic efficiency of anticancer nucleoside analogues (NA) strongly depends on their intracellular accumulation and conversion into 5'-triphosphates. Because active NATP cannot be directly administrated due to instability, we present here a strategy of nanoencapsulation of these active drugs for efficient delivery to tumors. Stable lyophilized formulations of 5'-triphosphates of cytarabine (araCTP), gemcitabine (dFdCTP), and floxuridine (FdUTP) encapsulated in biodegradable PEG-cl-PEI or F127-cl-PEI nanogel networks (NGC and NGM, respectively) were prepared by a self-assembly procedure. Cellular penetration, in vitro cytotoxicity, and drug-induced cell cycle perturbations of these nanoformulations were analyzed in breast and colorectal cancer cell lines. Cellular accumulation and NATP release from nanogel was studied by confocal microscopy and direct high-performance liquid chromatography analysis of cellular lysates. Antiproliferative effect of dFdCTP nanoformulations was evaluated in human breast carcinoma MCF7 xenograft animal model. Nanoencapsulated araCTP, dFdCTP, and FdUTP showed similar to NA cytotoxicity and cell cycle perturbations. Nanogels without drugs showed very low cytotoxicity, although NGM was more toxic than NGC. Treatment by NATP nanoformulations induced fast increase of free intracellular drug concentration. In human breast carcinoma MCF7 xenograft animal model, i.v. dFdCTP-nanogel was equally effective in inhibiting tumor growth at four times lower administered drug dose compared with free gemcitabine. Active triphosphates of NA encapsulated in nanogels exhibit similar cytotoxicity and cell cycle perturbations in vitro and faster cell accumulation and equal tumor growth-inhibitory activity in vivo at much lower dose compared with parental drugs, illustrating their therapeutic potential for cancer chemotherapy.
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49
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A phase I clinical study of intratumorally administered VB4-845, an anti-epithelial cell adhesion molecule recombinant fusion protein, in patients with squamous cell carcinoma of the head and neck. Med Oncol 2008; 26:257-64. [DOI: 10.1007/s12032-008-9111-x] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2008] [Accepted: 10/13/2008] [Indexed: 11/25/2022]
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50
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Buescher CD, Hoo KA, Janssen HF. An experimental approach to measure mass diffusion in rat tumor tissue. IEEE Trans Biomed Eng 2008; 55:1831-9. [PMID: 18595801 DOI: 10.1109/tbme.2008.919137] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
The objective of this research is to evaluate the usefulness of a macroscopic, fluorescent, imaging technique to quantify spatiotemporal mass transport parameters in in vitro solid tumor tissues taken from rat models. Fluorescent images captured during the experiments are digitally analyzed to determine the concentration of a fluorescent marker dye as it diffuses into tissue specimens taken from rat tumors. The collected concentration data are used to estimate local diffusion coefficients. An analysis of the distribution of the local diffusion data indicates that the local diffusion coefficient is spatially dependent within the tumor tissue. When mass transfer is restricted to one dimension, the current technique can be used to determine the concentration distribution of fluorescent molecules on the tissue surface and to estimate the mass transfer parameters within the heterogeneous tumor tissue.
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Affiliation(s)
- C Dewey Buescher
- Department of Chemical Engineering, Texas Tech University, Lubbock, TX 79409, USA.
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