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Fortuni B, Ricci M, Vitale R, Inose T, Zhang Q, Hutchison JA, Hirai K, Fujita Y, Toyouchi S, Krzyzowska S, Van Zundert I, Rocha S, Uji-I H. SERS Endoscopy for Monitoring Intracellular Drug Dynamics. ACS Sens 2023; 8:2340-2347. [PMID: 37219991 DOI: 10.1021/acssensors.3c00394] [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] [Indexed: 05/25/2023]
Abstract
Understanding the dynamics and distribution of medicinal drugs in living cells is essential for the design and discovery of treatments. The tools available for revealing this information are, however, extremely limited. Here, we report the application of surface-enhanced Raman scattering (SERS) endoscopy, using plasmonic nanowires as SERS probes, to monitor the intracellular fate and dynamics of a common chemo-drug, doxorubicin, in A549 cancer cells. The unique spatio-temporal resolution of this technique reveals unprecedented information on the mode of action of doxorubicin: its localization in the nucleus, its complexation with medium components, and its intercalation with DNA as a function of time. Notably, we were able to discriminate these factors for the direct administration of doxorubicin or the use of a doxorubicin delivery system. The results reported here show that SERS endoscopy may have an important future role in medicinal chemistry for studying the dynamics and mechanism of action of drugs in cells.
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Affiliation(s)
- Beatrice Fortuni
- Molecular Imaging and Photonics, Department of Chemistry, KU Leuven, Celestijnenlaan 200F, 3001 Leuven, Belgium
| | - Monica Ricci
- Molecular Imaging and Photonics, Department of Chemistry, KU Leuven, Celestijnenlaan 200F, 3001 Leuven, Belgium
| | - Raffaele Vitale
- U. Lille, CNRS, LASIRE, Laboratoire Avancé de Spectroscopie pour les Interactions, la Réactivité et l'Environnement, Cité Scientifique, F-59000 Lille, France
| | - Tomoko Inose
- Institute for Integrated Cell-Material Science (WPI-iCeMS), Kyoto University, Yoshida, Sakyo-ku, Kyoto 606-8501, Japan
| | - Qiang Zhang
- Research Institute for Electronic Science, Hokkaido University, Sapporo 001-0020, Japan
| | - James Andell Hutchison
- ARC Centre of Excellence in Exciton Science, School of Chemistry, University of Melbourne, Parkville, VIC 3010, Australia
| | - Kenji Hirai
- Research Institute for Electronic Science, Hokkaido University, Sapporo 001-0020, Japan
| | - Yasuhiko Fujita
- Toray Research Center, Inc., Sonoyama 3-3-7, Otsu, Shiga 520-8567, Japan
| | - Shuichi Toyouchi
- Research Institute for Light-Induced Acceleration System (RILACS), Osaka Metropolitan University, 1-2 Gakuencho, Nakaku, Sakai, Osaka 599-8570, Japan
| | - Sandra Krzyzowska
- Molecular Imaging and Photonics, Department of Chemistry, KU Leuven, Celestijnenlaan 200F, 3001 Leuven, Belgium
| | - Indra Van Zundert
- Synthetic Biology Group, Department of Biomedical Engineering, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
| | - Susana Rocha
- Molecular Imaging and Photonics, Department of Chemistry, KU Leuven, Celestijnenlaan 200F, 3001 Leuven, Belgium
| | - Hiroshi Uji-I
- Molecular Imaging and Photonics, Department of Chemistry, KU Leuven, Celestijnenlaan 200F, 3001 Leuven, Belgium
- Institute for Integrated Cell-Material Science (WPI-iCeMS), Kyoto University, Yoshida, Sakyo-ku, Kyoto 606-8501, Japan
- Research Institute for Electronic Science, Hokkaido University, Sapporo 001-0020, Japan
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2
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Hashad RA, Singla R, Kaur Bhangu S, Jap E, Zhu H, Peleg AY, Blakeway L, Hagemeyer CE, Cavalieri F, Ashokkumar M, Alt K. Chemoenzymatic surface decoration of Nisin-shelled nanoemulsions: Novel targeted drug-nanocarriers for cancer applications. ULTRASONICS SONOCHEMISTRY 2022; 90:106183. [PMID: 36201933 PMCID: PMC9554623 DOI: 10.1016/j.ultsonch.2022.106183] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Revised: 08/04/2022] [Accepted: 08/05/2022] [Indexed: 06/16/2023]
Abstract
Nisin, a peptide used as a natural food preservative, is employed in this work for the development of a novel nanocarrier system. Stable and uniform nisin-shelled nanoemulsions (NSNE) with a diameter of 100 ± 20 nm were successfully prepared using 20 kHz flow-through ultrasonication technique. The NSNE showed limited toxicity, high bactericidal activity and high drug loading capacity (EE 65 % w/w). In addition, the nisin shell was exploited for the site-specific attachment of a recombinantly produced cancer targeting ligand (αHER2LPETG IgG). Employing a unique two phases (bio-click) approach which involved both Sortase A mediated Azide Bioconjugation (SMAB) and Strain Promoted Azide Alkyne Cycloaddition (SPAAC) reactions, targeted NSNE (NSNEDOX-αHER2 IgG) were successfully assembled and loaded with the chemotherapeutic drug Doxorubicin (DOX). Finally, NSNEDOX-αHER2 IgG showed cancer-specific binding and augmented cytotoxicity to HER2 expressing tumour cells.
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Affiliation(s)
- Rania A Hashad
- NanoTheranostics Laboratory, Australian Center for Blood Diseases, Monash University, Melbourne, VIC 3004, Australia; NanoBiotechnology Laboratory, Australian Center for Blood Diseases, Monash University, Melbourne, VIC 3004, Australia; Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, AinShamsUniversity, Cairo, Egypt
| | - Ritu Singla
- School of Chemistry, University of Melbourne, VIC 3010, Australia
| | | | - Edwina Jap
- NanoTheranostics Laboratory, Australian Center for Blood Diseases, Monash University, Melbourne, VIC 3004, Australia
| | - Haiyan Zhu
- School of Chemistry, University of Melbourne, VIC 3010, Australia; School of Science, RMIT University, Melbourne, VIC 3000, Australia
| | - Anton Y Peleg
- Department of Infectious Diseases, The Alfred Hospital & Monash University, VIC 3004, Australia
| | - Luke Blakeway
- Department of Infectious Diseases, The Alfred Hospital & Monash University, VIC 3004, Australia
| | - Christoph E Hagemeyer
- NanoBiotechnology Laboratory, Australian Center for Blood Diseases, Monash University, Melbourne, VIC 3004, Australia
| | | | | | - Karen Alt
- NanoTheranostics Laboratory, Australian Center for Blood Diseases, Monash University, Melbourne, VIC 3004, Australia.
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3
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Qaiser A, Kiani MH, Parveen R, Sarfraz M, Shahnaz G, Rahdar A, Taboada P. Design and synthesis of multifunctional polymeric micelles for targeted delivery in Helicobacter pylori infection. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.119802] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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4
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Zhang Q, Bao J, Duan T, Hu M, He Y, Wang J, Hu R, Tang J. Nanomicelle-Microsphere Composite as a Drug Carrier to Improve Lung-Targeting Specificity for Lung Cancer. Pharmaceutics 2022; 14:pharmaceutics14030510. [PMID: 35335884 PMCID: PMC8955237 DOI: 10.3390/pharmaceutics14030510] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Revised: 02/21/2022] [Accepted: 02/23/2022] [Indexed: 12/10/2022] Open
Abstract
Lung cancer is the second-most common cancer and has the highest mortality among all cancer types. Nanoparticle (NP) drug delivery systems have been used to improve the therapeutic effectiveness of lung cancer, but rapid clearance and poor targeting limit their clinical utility. Here, we developed a nanomicelle-microsphere composite, in which doxorubicin (DOX) was loaded with spermine (Spm) modified poly (ethylene glycol)-poly(ε-caprolactone) (PEG-PCL) micelles, and then the nanomicelles were noncovalently adsorbed on the surface of poly (lactic-co-glycolic acid) (PLGA) microspheres. The attachment was confirmed by scanning electron microscopy and confocal microscopy. In vitro cell experiments, MTT assays and intracellular uptake assays were used to demonstrate the cytotoxicity and the cellular uptake of micelles in A549 cells. In vivo biodistribution studies were conducted, an orthotopic lung cancer implantation model based on C57BL/6 mice was established, and then real-time fluorescence imaging analysis was used to study the targeted efficacy of the complex. A nanomicelle-microsphere composite was successively constructed. Moreover, Spm-modified micelles significantly enhanced cytotoxicity and displayed more efficient cellular uptake. Notably, an orthotopic lung cancer implantation model based on C57BL/6 mice was also successively established, and in vivo biodistribution studies confirmed that the complex greatly improved the distribution of DOX in the lungs and displayed notable tumor targeting. These results suggested that the nanomicelle-microsphere composite has potential application prospects in the targeted treatment of lung cancer.
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Affiliation(s)
- Qianqian Zhang
- School of Pharmacy, Anhui Medical University, Hefei 230032, China; (Q.Z.); (J.B.); (T.D.); (M.H.); (Y.H.); (J.W.)
| | - Jianwei Bao
- School of Pharmacy, Anhui Medical University, Hefei 230032, China; (Q.Z.); (J.B.); (T.D.); (M.H.); (Y.H.); (J.W.)
| | - Tijie Duan
- School of Pharmacy, Anhui Medical University, Hefei 230032, China; (Q.Z.); (J.B.); (T.D.); (M.H.); (Y.H.); (J.W.)
| | - Minxing Hu
- School of Pharmacy, Anhui Medical University, Hefei 230032, China; (Q.Z.); (J.B.); (T.D.); (M.H.); (Y.H.); (J.W.)
| | - Yuting He
- School of Pharmacy, Anhui Medical University, Hefei 230032, China; (Q.Z.); (J.B.); (T.D.); (M.H.); (Y.H.); (J.W.)
| | - Junwei Wang
- School of Pharmacy, Anhui Medical University, Hefei 230032, China; (Q.Z.); (J.B.); (T.D.); (M.H.); (Y.H.); (J.W.)
| | - Rongfeng Hu
- Anhui Province Key Laboratory of Pharmaceutical Preparation Technology and Application, Key Laboratory of Xin’an Medicine, the Ministry of Education, Anhui Province Key Laboratory of Chinese Medicinal Formula, Plant Active Peptide Function Food Innovative Manufacturing Industry Innovation Team, Anhui University of Chinese Medicine, Hefei 230038, China
- Correspondence: (R.H.); (J.T.); Tel.: +86-55165161176 (J.T.)
| | - Jihui Tang
- School of Pharmacy, Anhui Medical University, Hefei 230032, China; (Q.Z.); (J.B.); (T.D.); (M.H.); (Y.H.); (J.W.)
- Anhui Province Key Laboratory of Pharmaceutical Preparation Technology and Application, Key Laboratory of Xin’an Medicine, the Ministry of Education, Anhui Province Key Laboratory of Chinese Medicinal Formula, Plant Active Peptide Function Food Innovative Manufacturing Industry Innovation Team, Anhui University of Chinese Medicine, Hefei 230038, China
- Correspondence: (R.H.); (J.T.); Tel.: +86-55165161176 (J.T.)
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5
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RAFT-synthesized POEGMA-b-P4VP block copolymers: preparation of nanosized micelles for anticancer drug release. Polym Bull (Berl) 2021. [DOI: 10.1007/s00289-021-03964-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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6
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Rehman FU, Al-Waeel M, Naz SS, Shah KU. Anticancer therapeutics: a brief account on wide refinements. Am J Cancer Res 2020; 10:3599-3621. [PMID: 33294257 PMCID: PMC7716164] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Accepted: 05/25/2020] [Indexed: 06/12/2023] Open
Abstract
The flustering rise in cancer incidence along with treatment anomalies has made cancer the second leading cause of death globally. The total annual economic impact of cancer is pronounced and is increasing. Besides the lack of proper curative therapy, treatment associated adverse effects, drug resistance, and tumor relapse are the instigations behind increased morbidity and mortality. Meanwhile, the survival rate has inclined impressively. In the last few decades, cancer treatment has undergone wide refinements aiming towards cancer prevention, complete tumor regression, subsiding treatment adverse effects, improving patient's life standard and avoiding tumor relapse. Chemotherapy has been successfully extended towards natural, cheaper and bioactive anti-inflammatory agents manifesting potent anticancer activity. Antibody-based cancer therapy has become well established as a vital and effective strategy for treating hematological malignancies as well as solid tumors. Individualized immunotherapy is becoming the forefront of cancer treatment enabling personalized, precise and patient's cancer mutanome specific adjustable regimen. The emergence of anti-neoangiogenesis and cancer stem cell targeting techniques have dropped cancer recurrence significantly. Advancements in hyperthermia and photodynamic therapies along with improvements in cancer vaccination have declined death rate and amplified survival rate convincingly.
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Affiliation(s)
- Fiza Ur Rehman
- Department of Pharmacy, Quaid-i-Azam UniversityIslamabad, Pakistan
| | - Mansoor Al-Waeel
- CÚRAM SFI Research Centre for Medical Devices, National University of Ireland GalwayGalway, Ireland
| | - Syeda Sohaila Naz
- Nanosciences and Technology Department, National Centre for PhysicsIslamabad, Pakistan
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7
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Gao D, Zhu Q, Ruan J, Sun T, Han L. Polyplexes by Polymerized Dequalinium and Bifunctional Aptamer for Mitochondrial Targeting Drug Release to Overcome Drug Resistance. ACS APPLIED BIO MATERIALS 2020; 3:5182-5192. [DOI: 10.1021/acsabm.0c00610] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Duo Gao
- Jiangsu Key Laboratory of Neuropsychiatric Diseases and College of Pharmaceutical Sciences, Soochow University, Suzhou, Jiangsu 215123, China
| | - Qiuning Zhu
- Jiangsu Key Laboratory of Neuropsychiatric Diseases and College of Pharmaceutical Sciences, Soochow University, Suzhou, Jiangsu 215123, China
| | - Jianqing Ruan
- Jiangsu Key Laboratory of Neuropsychiatric Diseases and College of Pharmaceutical Sciences, Soochow University, Suzhou, Jiangsu 215123, China
| | - Tao Sun
- Key Laboratory of Smart Drug Delivery (Ministry of Education), State Key Laboratory of Medical Neurobiology, Department of Pharmaceutics, School of Pharmacy, Fudan University, 826 Zhangheng Road, Shanghai 201203, P. R. China
| | - Liang Han
- Jiangsu Key Laboratory of Neuropsychiatric Diseases and College of Pharmaceutical Sciences, Soochow University, Suzhou, Jiangsu 215123, China
- Stake Key Laboratory of Natural and Biomimetic Drugs, Peking University, Beijing 100191, China
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8
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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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9
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Haider MS, Lübtow MM, Endres S, Forster S, Flegler VJ, Böttcher B, Aseyev V, Pöppler AC, Luxenhofer R. Think Beyond the Core: Impact of the Hydrophilic Corona on Drug Solubilization Using Polymer Micelles. ACS APPLIED MATERIALS & INTERFACES 2020; 12:24531-24543. [PMID: 32378873 DOI: 10.1021/acsami.9b22495] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Polymeric micelles are typically characterized as core-shell structures. The hydrophobic core is considered as a depot for hydrophobic molecules, and the corona-forming block acts as a stabilizing and solubilizing interface between the core and aqueous milieu. Tremendous efforts have been made to tune the hydrophobic block to increase the drug loading and stability of micelles, whereas the role of hydrophilic blocks is rarely investigated in this context, with poly(ethylene glycol) (PEG) being the gold standard of hydrophilic polymers. To better understand the role of the hydrophilic corona, a small library of structurally similar A-B-A-type amphiphiles based on poly(2-oxazoline)s and poly(2-oxazine)s is investigated by varying the hydrophilic block A utilizing poly(2-methyl-2-oxazoline) (pMeOx; A) or poly(2-ethyl-2-oxazoline) (pEtOx; A*). In terms of hydrophilicity, both polymers closely resemble PEG. The more hydrophobic block B bears either a poly(2-oxazoline) and poly(2-oxazine) backbone with C3 (propyl) and C4 (butyl) side chains. Surprisingly, major differences in loading capacities from A-B-A > A*-B-A > A*-B-A* is observed for the formulation with two poorly water-soluble compounds, curcumin and paclitaxel, highlighting the importance of the hydrophilic corona of polymer micelles used for drug formulation. The formulations are also characterized by various nuclear magnetic resonance spectroscopy methods, dynamic light scattering, cryogenic transmission electron microscopy, and (micro) differential scanning calorimetry. Our findings suggest that the interaction between the hydrophilic block and the guest molecule should be considered an important, but previously largely ignored, factor for the rational design of polymeric micelles.
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Affiliation(s)
- Malik Salman Haider
- Functional Polymer Materials, Chair for Chemical Technology of Material Synthesis and Bavarian Polymer Institute, Faculty of Chemistry and Pharmacy, University of Würzburg, Röntgenring 11, 97070 Würzburg, Germany
| | - Michael M Lübtow
- Functional Polymer Materials, Chair for Chemical Technology of Material Synthesis and Bavarian Polymer Institute, Faculty of Chemistry and Pharmacy, University of Würzburg, Röntgenring 11, 97070 Würzburg, Germany
| | - Sebastian Endres
- Institute of Organic Chemistry, Faculty of Chemistry and Pharmacy, University of Würzburg, Am Hubland, 97074 Würzburg, Germany
| | - Stefan Forster
- Functional Polymer Materials, Chair for Chemical Technology of Material Synthesis and Bavarian Polymer Institute, Faculty of Chemistry and Pharmacy, University of Würzburg, Röntgenring 11, 97070 Würzburg, Germany
| | - Vanessa J Flegler
- Biocenter and Rudolf Virchow Centre, University of Würzburg, Haus D15, Josef-Schneider-Str. 2, 97080 Würzburg, Germany
| | - Bettina Böttcher
- Biocenter and Rudolf Virchow Centre, University of Würzburg, Haus D15, Josef-Schneider-Str. 2, 97080 Würzburg, Germany
| | - Vladimir Aseyev
- Department of Chemistry, University of Helsinki, PB 55, Helsinki FIN-00014, Finland
| | - Ann-Christin Pöppler
- Institute of Organic Chemistry, Faculty of Chemistry and Pharmacy, University of Würzburg, Am Hubland, 97074 Würzburg, Germany
| | - Robert Luxenhofer
- Functional Polymer Materials, Chair for Chemical Technology of Material Synthesis and Bavarian Polymer Institute, Faculty of Chemistry and Pharmacy, University of Würzburg, Röntgenring 11, 97070 Würzburg, Germany
- Department of Chemistry, University of Helsinki, PB 55, Helsinki FIN-00014, Finland
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Nanoparticle delivery of a pH-sensitive prodrug of doxorubicin and a mitochondrial targeting VES-H 8R 8 synergistically kill multi-drug resistant breast cancer cells. Sci Rep 2020; 10:8726. [PMID: 32457422 PMCID: PMC7251113 DOI: 10.1038/s41598-020-65450-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2019] [Accepted: 05/04/2020] [Indexed: 12/14/2022] Open
Abstract
Multi-drug resistance (MDR) remains a major obstacle in cancer treatment while being heavily dependent on mitochondrial activity and drug efflux. We previously demonstrated that cationic lipids, such as the vitamin E succinate modified octahistidine-octaarginine (VES-H8R8) conjugate, target mitochondria, resulting in depolarized mitochondria and inhibited drug efflux in MDR breast cancer cells. We hypothesized that the effective cell uptake, efflux inhibition, and mitochondrial depolarization properties of VES-H8R8 would synergistically enhance the toxicity of a pH-sensitive prodrug of doxorubicin (pDox) when co-encapsulated in nanoparticles (NPs). pDox was successfully synthesized and validated for pH-sensitive release from NPs under lysosome-mimicking, acidic conditions. The synergistic effect of VES-H8R8 and pDox was confirmed against MDR breast cancer cells in vitro. Importantly, synergism was only observed when VES-H8R8 and pDox were co-encapsulated in a single nanoparticulate system. The synergistic mechanism was investigated, confirming superior pDox uptake and retention, Pgp efflux inhibition, mitochondrial depolarization, and enhanced induction of ROS, and apoptosis. This work demonstrates the translational potential of doubly-loaded NPs co-encapsulating pDox with VES-H8R8 to synergistically kill MDR breast cancer cells.
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Xie X, Chen Y, Chen Z, Feng Y, Wang J, Li T, Li S, Qin X, Wu C, Zheng C, Zhu J, You F, Liu Y, Yang H. Polymeric Hybrid Nanomicelles for Cancer Theranostics: An Efficient and Precise Anticancer Strategy for the Codelivery of Doxorubicin/miR-34a and Magnetic Resonance Imaging. ACS APPLIED MATERIALS & INTERFACES 2019; 11:43865-43878. [PMID: 31684723 DOI: 10.1021/acsami.9b14908] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
To realize precise tumor therapy, a versatile oncotherapy nanoplatform integrating both diagnostic and therapeutic functions is necessary. Herein, we fabricated a hybrid micelle (HM) utilizing two amphiphilic diblock copolymers, polyethylenimine-polycaprolactone (PEI-PCL) and diethylenetriaminepentaacetic acid gadolinium(III) (Gd-DTPA)-conjugated polyethyleneglycol-polycaprolactone (Gd-PEG-PCL), to codeliver the small-molecule chemotherapy drugs doxorubicin (Dox) and microRNA-34a (miR-34a), denoted as Gd-HM-Dox/34a. Conjugating Gd-DTPA on the surface of hybrid micelles, leading the relaxation rate of Gd-DTPA increased more than 1.4 times (13.6 mM-1 S-1). Furthermore, hybrid micelles enhanced the ability of miR-34a to escape from lysosomes/endosomes and Dox release to the nucleus. In addition, the released miR-34a subsequently downregulates Bcl-2, cyclin D1, CDK6, and Bax expression and inhibits proliferation and migration of MDA-MB-231 breast cancer cells. Moreover, the suitable micelle size improved the penetration of Dox into three-dimensional (3D) multicellular spheroids compared with Gd-HM-Dox and Free Dox, generating efficient cell killing in the 3D multicellular spheroids. Furthermore, the Gd-HM-Dox/34a exhibited augmented accumulation in the tumor tissue, which improved the magnetic resonance (MR) imaging contrast of solid tumors and enhanced the combined efficiency of chemotherapeutic drugs Dox and therapeutic gene miR-34a in suppressing tumor growth on MDA-MB-231 tumor-bearing mice. Therefore, we established a hybrid micelle to offer a promising theranostic approach that inhibits tumor growth and enhances MR imaging.
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Affiliation(s)
- Xiaoxue Xie
- Department of Biophysics, School of Life Science and Technology , University of Electronic Science and Technology of China , Chengdu 610054 , Sichuan , P.R. China
| | - Yu Chen
- Department of Biophysics, School of Life Science and Technology , University of Electronic Science and Technology of China , Chengdu 610054 , Sichuan , P.R. China
| | - Zhongyuan Chen
- Department of Biophysics, School of Life Science and Technology , University of Electronic Science and Technology of China , Chengdu 610054 , Sichuan , P.R. China
| | - Yi Feng
- Department of Biophysics, School of Life Science and Technology , University of Electronic Science and Technology of China , Chengdu 610054 , Sichuan , P.R. China
| | - Jing Wang
- Department of Biophysics, School of Life Science and Technology , University of Electronic Science and Technology of China , Chengdu 610054 , Sichuan , P.R. China
| | - Tingting Li
- Department of Biophysics, School of Life Science and Technology , University of Electronic Science and Technology of China , Chengdu 610054 , Sichuan , P.R. China
| | - Shun Li
- Department of Biophysics, School of Life Science and Technology , University of Electronic Science and Technology of China , Chengdu 610054 , Sichuan , P.R. China
- Center for Information in Biology , University of Electronic Science and Technology of China , Chengdu 610054 , Sichuan , P.R. China
| | - Xiang Qin
- Department of Biophysics, School of Life Science and Technology , University of Electronic Science and Technology of China , Chengdu 610054 , Sichuan , P.R. China
- Center for Information in Biology , University of Electronic Science and Technology of China , Chengdu 610054 , Sichuan , P.R. China
| | - Chunhui Wu
- Department of Biophysics, School of Life Science and Technology , University of Electronic Science and Technology of China , Chengdu 610054 , Sichuan , P.R. China
- Center for Information in Biology , University of Electronic Science and Technology of China , Chengdu 610054 , Sichuan , P.R. China
| | - Chuan Zheng
- Hospital of Chengdu University of Traditional Chinese Medicine , No. 39 Shi-er-qiao Road , Chengdu 610072 , Sichuan , P.R. China
| | - Jie Zhu
- Hospital of Chengdu University of Traditional Chinese Medicine , No. 39 Shi-er-qiao Road , Chengdu 610072 , Sichuan , P.R. China
| | - Fengming You
- Hospital of Chengdu University of Traditional Chinese Medicine , No. 39 Shi-er-qiao Road , Chengdu 610072 , Sichuan , P.R. China
| | - Yiyao Liu
- Department of Biophysics, School of Life Science and Technology , University of Electronic Science and Technology of China , Chengdu 610054 , Sichuan , P.R. China
- Center for Information in Biology , University of Electronic Science and Technology of China , Chengdu 610054 , Sichuan , P.R. China
- Hospital of Chengdu University of Traditional Chinese Medicine , No. 39 Shi-er-qiao Road , Chengdu 610072 , Sichuan , P.R. China
| | - Hong Yang
- Department of Biophysics, School of Life Science and Technology , University of Electronic Science and Technology of China , Chengdu 610054 , Sichuan , P.R. China
- Center for Information in Biology , University of Electronic Science and Technology of China , Chengdu 610054 , Sichuan , P.R. China
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12
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Li Y, Luo J, Lin MT, Zhi P, Guo WW, Han M, You J, Gao JQ. Co-Delivery of Metformin Enhances the Antimultidrug Resistant Tumor Effect of Doxorubicin by Improving Hypoxic Tumor Microenvironment. Mol Pharm 2019; 16:2966-2979. [PMID: 31095914 DOI: 10.1021/acs.molpharmaceut.9b00199] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Doxorubicin (DOX) is a first-line chemo drug for cancer therapy, yet it fails to treat multi-drug-resistant tumors. Hypoxia is a major causative factor leading to chemotherapy failure. Particularly, hypoxia up-regulates its responsive transcription factor-hypoxia-inducible factors (HIF)-to induce the overexpression of drug resistant genes. Metformin (MET) is recently found to cooperate with DOX against multiple tumors. As a mitochondrial inhibitor, MET could suppress tumor oxygen consumption, and thereby modulate the hypoxic tumor microenvironment. In this study, we used cationic liposomes to codeliver both DOX and MET for treating multi-drug-resistant breast cancer cells-MCF7/ADR. Faster release of MET enhanced the cytotoxicity of DOX through attenuating hypoxic stress both in vivo and in vitro. MET diminished the cellular oxygen consumption and inhibited HIF1α and P-glycoprotein (Pgp) expression in vitro. In addition, the dual-drug-loaded liposomes increased tumor targeting and intratumoral blood oxygen saturation, which suggested that the tumor reoxygenation effect of MET facilitated the exertion of its synergistic activity with DOX against MCF7/ADR xenografts. In general, our study represents a feasible strategy to boost the therapeutic effect in treating multi-drug-resistant cancer by improving the hypoxic tumor microenvironment.
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Affiliation(s)
- Ying Li
- Institute of Pharmaceutics, College of Pharmaceutical Sciences , Zhejiang University , Hangzhou , People's Republic of China.,Zhejiang Province Key Laboratory of Anti-Cancer Drug Research, College of Pharmaceutical Sciences , Zhejiang University , Hangzhou , People's Republic of China
| | - Jing Luo
- Institute of Pharmaceutics, College of Pharmaceutical Sciences , Zhejiang University , Hangzhou , People's Republic of China.,Zhejiang Province Key Laboratory of Anti-Cancer Drug Research, College of Pharmaceutical Sciences , Zhejiang University , Hangzhou , People's Republic of China
| | - Meng-Ting Lin
- Institute of Pharmaceutics, College of Pharmaceutical Sciences , Zhejiang University , Hangzhou , People's Republic of China.,Zhejiang Province Key Laboratory of Anti-Cancer Drug Research, College of Pharmaceutical Sciences , Zhejiang University , Hangzhou , People's Republic of China
| | - Pei Zhi
- Institute of Pharmaceutics, College of Pharmaceutical Sciences , Zhejiang University , Hangzhou , People's Republic of China.,Zhejiang Province Key Laboratory of Anti-Cancer Drug Research, College of Pharmaceutical Sciences , Zhejiang University , Hangzhou , People's Republic of China
| | - Wang-Wei Guo
- Institute of Pharmaceutics, College of Pharmaceutical Sciences , Zhejiang University , Hangzhou , People's Republic of China.,Zhejiang Province Key Laboratory of Anti-Cancer Drug Research, College of Pharmaceutical Sciences , Zhejiang University , Hangzhou , People's Republic of China
| | - Min Han
- Institute of Pharmaceutics, College of Pharmaceutical Sciences , Zhejiang University , Hangzhou , People's Republic of China.,Zhejiang Province Key Laboratory of Anti-Cancer Drug Research, College of Pharmaceutical Sciences , Zhejiang University , Hangzhou , People's Republic of China
| | - Jian You
- Institute of Pharmaceutics, College of Pharmaceutical Sciences , Zhejiang University , Hangzhou , People's Republic of China.,Zhejiang Province Key Laboratory of Anti-Cancer Drug Research, College of Pharmaceutical Sciences , Zhejiang University , Hangzhou , People's Republic of China
| | - Jian-Qing Gao
- Institute of Pharmaceutics, College of Pharmaceutical Sciences , Zhejiang University , Hangzhou , People's Republic of China.,Zhejiang Province Key Laboratory of Anti-Cancer Drug Research, College of Pharmaceutical Sciences , Zhejiang University , Hangzhou , People's Republic of China
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Bej R, Ghosh S. Glutathione Triggered Cascade Degradation of an Amphiphilic Poly(disulfide)-Drug Conjugate and Targeted Release. Bioconjug Chem 2018; 30:101-110. [PMID: 30557508 DOI: 10.1021/acs.bioconjchem.8b00781] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
A bioreducible poly(disulfide)-derived amphiphilic block copolymer-drug conjugate (loading content 31%) was synthesized by post-polymerization modification. It shows redox-responsive polymersome assembly in water with aggregation induced emission property arising from the appended Camptothecin (CPT) drug. Glutathione (GSH), a tripeptide overexpressed in cancer cells, triggers a cascade reaction resulting in simultaneous degradation of the polymer backbone (consisting of disulfide linkage) and the release of the pendant drug. The cascade reaction involves GSH trigger cleavage of the backbone disulfide bond producing free thiol followed by its intrachain nucleophilic attack to the adjacent carbonate group that links the appended drug molecule. The polymeric pro-drug exhibits killing efficiency to a cancer cell with remarkably low IC50 value of 3.1 μg/mL (based on the CPT concentration) while it shows negligible toxicity to a normal cell up to polymer concentration 300 μg/mL.
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Yin T, Wang Y, Chu X, Fu Y, Wang L, Zhou J, Tang X, Liu J, Huo M. Free Adriamycin-Loaded pH/Reduction Dual-Responsive Hyaluronic Acid-Adriamycin Prodrug Micelles for Efficient Cancer Therapy. ACS APPLIED MATERIALS & INTERFACES 2018; 10:35693-35704. [PMID: 30259743 DOI: 10.1021/acsami.8b09342] [Citation(s) in RCA: 54] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Currently, tumor-targeted nanocarriers self-assembled from amphiphilic polymer-drug conjugates are of great demand. The appeal of these carriers arises mainly through their excellent loading efficiency of homologous drug molecules with microenvironment-triggered drug release. Herein, doxorubicin (DOX) was constructed to a hyaluronic acid (HA) backbone through hydrazone and disulfide linkages to construct pH and reduction coresponsive prodrug conjugates (HA-ss-DOX). During formulation, the amphipathic HA-ss-DOX spontaneously assembled into distinct core/shell micelles in aqueous media and showed conspicuous physical DOX loading capabilities (29.1%, DOX/HA-ss-DOX) based on homologous compatibility. DOX/HA-ss-DOX micelles were shown to be stable in normal physiological environments, while accomplishing selective, rapid DOX release at acidic pH and/or highly reducing conditions. The efficacy of DOX/HA-ss-DOX micelles was tested on A549 human lung cancer cells, wherein flow cytometry and confocal microscopy analysis revealed their HA receptor-mediated endocytosis mechanism. In comparison, DOX-loaded redox-insensitive micelles (DOX/HA-DOX) still demonstrated pH-dependent drug release. However, a more rapid intracellular DOX release profile was achieved in DOX/HA-ss-DOX micelles because of their sensitivity to both acidic and reducing environments. Resultantly, DOX/HA-ss-DOX exhibited the strongest cytotoxicity and apoptosis-inducing ability among all tested groups when tested on an A549 cell line and xenograft model.
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Affiliation(s)
- Tingjie Yin
- State Key Laboratory of Natural Medicines, Department of Pharmaceutics , China Pharmaceutical University , 24 Tongjiaxiang , Nanjing 210009 , China
| | - Yanyan Wang
- State Key Laboratory of Natural Medicines, Department of Pharmaceutics , China Pharmaceutical University , 24 Tongjiaxiang , Nanjing 210009 , China
| | - Xuxin Chu
- State Key Laboratory of Natural Medicines, Department of Pharmaceutics , China Pharmaceutical University , 24 Tongjiaxiang , Nanjing 210009 , China
| | - Ying Fu
- State Key Laboratory of Natural Medicines, Department of Pharmaceutics , China Pharmaceutical University , 24 Tongjiaxiang , Nanjing 210009 , China
| | - Lei Wang
- State Key Laboratory of Natural Medicines, Department of Pharmaceutics , China Pharmaceutical University , 24 Tongjiaxiang , Nanjing 210009 , China
- Department of Pharmaceutics , Guizhou Medical University , Huaxi University Town , Guian new district, Guiyang 550025 , Guizhou , People's Republic of China
| | - Jianping Zhou
- State Key Laboratory of Natural Medicines, Department of Pharmaceutics , China Pharmaceutical University , 24 Tongjiaxiang , Nanjing 210009 , China
| | - Xiaomeng Tang
- Department of Pharmacy , Changhai Hospital, The Second Military Medical University , Shanghai 200433 , China
| | - Jiyong Liu
- Department of Pharmacy , Changhai Hospital, The Second Military Medical University , Shanghai 200433 , China
| | - Meirong Huo
- State Key Laboratory of Natural Medicines, Department of Pharmaceutics , China Pharmaceutical University , 24 Tongjiaxiang , Nanjing 210009 , China
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Zhou Q, Zhou Y, Liu X, Shen Y. GDC-0449 improves the antitumor activity of nano-doxorubicin in pancreatic cancer in a fibroblast-enriched microenvironment. Sci Rep 2017; 7:13379. [PMID: 29042665 PMCID: PMC5645386 DOI: 10.1038/s41598-017-13869-0] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2017] [Accepted: 10/03/2017] [Indexed: 01/04/2023] Open
Abstract
Pancreatic cancer is one of the most lethal human cancers that currently does not have effective therapies. Novel treatments including nanomedicines and combination therapies are thus urgently needed for these types of deadly diseases. A key feature of pancreatic cancer is its tumor protective dense stroma, which is generated by cancer-associated fibroblasts (CAFs). The interaction between CAFs and pancreatic cancer cells abnormally activates sonic hedgehog (SHH) signaling and facilitates tumor growth, metastasis, and drug resistance. Here, we report that the commercial SHH inhibitor GDC-0449 reverses fibroblast-induced resistance to doxorubicin in Smoothened (SMO)-positive pancreatic cancer cells by downregulating SHH signaling proteins. Importantly, the synergistic combination of GDC-0449 with PEG-PCL-Dox exhibited potent antitumor efficacy in a BxPC-3 tumor xenograft model, whereas single treatments did not significantly inhibit tumor growth. Our findings reveal a potential treatment strategy for fibroblast-enriched pancreatic cancer.
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Affiliation(s)
- Quan Zhou
- Key Laboratory of Biomass Chemical Engineering of Ministry of Education and Center for Bionanoengineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, China
| | - Yongcun Zhou
- Key Laboratory of Biomass Chemical Engineering of Ministry of Education and Center for Bionanoengineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, China
| | - Xiangrui Liu
- Key Laboratory of Biomass Chemical Engineering of Ministry of Education and Center for Bionanoengineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, China.
| | - Youqing Shen
- Key Laboratory of Biomass Chemical Engineering of Ministry of Education and Center for Bionanoengineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, China.
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Kunitskaya L, Zheltonozhskaya T, Stoika R, Klymchuk D. Compositions of Anticancer Drug with Micellar Nanocarriers and Their Cytotoxicity. FRENCH-UKRAINIAN JOURNAL OF CHEMISTRY 2017. [DOI: 10.17721/fujcv5i2p103-120] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Asymmetric diblock (DBC) and triblock (TBC) copolymers contained biocompatible chemically complementary polyacrylamide and poly(ethylene oxide) (PAAm-b-PEO-b-PAAm) or its monomethyl ether (MEPEO-b-PAAm), and also partially hydrolyzed triblock copolymer derivative (TBChydr) were used to create micelles of a special type. The micelles obtained are characterized by small CMCs and large values of the Gibbs micellization energy, thus indicating a high stability of DBC, TBC and TBChydr micelles in aqueous solutions and the capabilities of their use to encapsulate and deliver poorly soluble and/or toxic drugs in living organism. Morphological features and size of DBC and TBC micelles were determined by TEM. The electron images demonstrated spherical micelles of a polymolecular type, monomolecular type and separate micelle aggregates. TBC and TBChydr micelles were used to examine in vitro anticancer activity of their compositions with doxorubicin (Dox). The created micelle systems showed the enhanced cytotoxicity as compared to individual Dox against murine leukemia cells of L1210 line, murine transformed fibroblasts of L929 line and human T-leukemia cells of Jurkat line and allow to achieve a high efficacy at low Dox concentrations (0,1÷3 µg·cm-3) that opens the great prospects for essential decrease in drug dose at chemotherapy.
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Butt AM, Amin MCIM, Katas H, Abdul Murad NA, Jamal R, Kesharwani P. Doxorubicin and siRNA Codelivery via Chitosan-Coated pH-Responsive Mixed Micellar Polyplexes for Enhanced Cancer Therapy in Multidrug-Resistant Tumors. Mol Pharm 2016; 13:4179-4190. [PMID: 27934479 DOI: 10.1021/acs.molpharmaceut.6b00776] [Citation(s) in RCA: 69] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
This study investigated the potential of chitosan-coated mixed micellar nanocarriers (polyplexes) for codelivery of siRNA and doxorubicin (DOX). DOX-loaded mixed micelles (serving as cores) were prepared by thin film hydration method and coated with chitosan (CS, serving as outer shell), and complexed with multidrug resistance (MDR) inhibiting siRNA. Selective targeting was achieved by folic acid conjugation. The polyplexes showed pH-responsive enhanced DOX release in acidic tumor pH, resulting in higher intracellular accumulation, which was further augmented by downregulation of mdr-1 gene after treatment with siRNA-complexed polyplexes. In vitro cytotoxicity assay demonstrated an enhanced cytotoxicity in native 4T1 and multidrug-resistant 4T1-mdr cell lines, compared to free DOX. Furthermore, in vivo, polyplexes codelivery resulted in highest DOX accumulation and significantly reduced the tumor volume in mice with 4T1 and 4T1-mdr tumors as compared to the free DOX groups, leading to improved survival times in mice. In conclusion, codelivery of siRNA and DOX via polyplexes has excellent potential as targeted drug nanocarriers for treatment of MDR cancers.
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Affiliation(s)
- Adeel Masood Butt
- Centre for Drug Delivery Research, Faculty of Pharmacy, Universiti Kebangsaan Malaysia , Jalan Raja Muda Abdul Aziz, Kuala Lumpur 50300, Malaysia
| | - Mohd Cairul Iqbal Mohd Amin
- Centre for Drug Delivery Research, Faculty of Pharmacy, Universiti Kebangsaan Malaysia , Jalan Raja Muda Abdul Aziz, Kuala Lumpur 50300, Malaysia
| | - Haliza Katas
- Centre for Drug Delivery Research, Faculty of Pharmacy, Universiti Kebangsaan Malaysia , Jalan Raja Muda Abdul Aziz, Kuala Lumpur 50300, Malaysia
| | - Nor Azian Abdul Murad
- UKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia (UKM) , Jalan Ya'acob Latiff, Bandar Tun Razak, Cheras, Kuala Lumpur 56000, Malaysia
| | - Rahman Jamal
- UKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia (UKM) , Jalan Ya'acob Latiff, Bandar Tun Razak, Cheras, Kuala Lumpur 56000, Malaysia
| | - Prashant Kesharwani
- Use-inspired Biomaterials & Integrated Nano Delivery (U-BiND) Systems Laboratory, Department of Pharmaceutical Sciences, Eugene Applebaum College of Pharmacy and Health Sciences, Wayne State University , 259 Mack Avenue, Detroit, Michigan 48201, United States
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Le Dévédec F, Houdaihed L, Allen C. Anionic Polymerization of an Amphiphilic Copolymer for Preparation of Block Copolymer Micelles Stabilized by π-π Stacking Interactions. J Vis Exp 2016. [PMID: 27768044 DOI: 10.3791/54422] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022] Open
Abstract
In this study, an amphiphilic copolymer that includes a core-forming block with phenyl groups was synthesized by living anionic polymerization of phenyl glycidyl ether (PheGE) on methoxy-polyethylene glycol (mPEG-b-PPheGE). Characterization of the copolymer revealed a narrow molecular distribution (PDI < 1.03) and confirmed the degree of polymerization of mPEG122-b-(PheGE)15. The critical micelle concentration of the copolymer was evaluated using an established fluorescence method with the aggregation behavior evaluated by dynamic light scattering and transmission electronic microscopy. The potential of the copolymer for use in drug delivery applications was evaluated in a preliminary manner including in vitro biocompatibility, loading and release of the hydrophobic anti-cancer drug doxorubicin (DOX). A stable micelle formulation of DOX was prepared with drug loading levels up to 14% (wt%), drug loading efficiencies > 60% (w/w) and sustained release of drug over 4 days under physiologically relevant conditions (acidic and neutral pH, presence of albumin). The high drug loading level and sustained release is attributed to stabilizing π-π interactions between DOX and the core-forming block of the micelles.
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Abbad S, Wang C, Waddad AY, Lv H, Zhou J. Preparation, in vitro and in vivo evaluation of polymeric nanoparticles based on hyaluronic acid-poly(butyl cyanoacrylate) and D-alpha-tocopheryl polyethylene glycol 1000 succinate for tumor-targeted delivery of morin hydrate. Int J Nanomedicine 2015; 10:305-20. [PMID: 25609946 PMCID: PMC4293365 DOI: 10.2147/ijn.s73971] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Herein, we describe the preparation of a targeted cellular delivery system for morin hydrate (MH), based on a low-molecular-weight hyaluronic acid-poly(butyl cyanoacrylate) (HA-PBCA) block copolymer. In order to enhance the therapeutic effect of MH, D-alpha-tocopheryl polyethylene glycol 1000 succinate (TPGS) was mixed with HA-PBCA during the preparation process. The MH-loaded HA-PBCA “plain” nanoparticle (MH-PNs) and HA-PBCA/TPGS “mixed” nanoparticles (MH-MNs) were concomitantly characterized in terms of loading efficiency, particle size, zeta potential, critical aggregation concentration, and morphology. The obtained MH-PNs and MH-MNs exhibited a spherical morphology with a negative zeta potential and a particle size less than 200 nm, favorable for drug targeting. Remarkably, the addition of TPGS resulted in about 1.6-fold increase in drug-loading. The in vitro cell viability experiment revealed that MH-MNs enhanced the cytotoxicity of MH in A549 cells compared with MH solution and MH-PNs. Furthermore, blank MNs containing TPGS exhibited selective cytotoxic effects against cancer cells without diminishing the viability of normal cells. In addition, the cellular uptake study indicated that MNs resulted in 2.28-fold higher cellular uptake than that of PNs, in A549 cells. The CD44 receptor competitive inhibition and the internalization pathway studies suggested that the internalization mechanism of the nanoparticles was mediated mainly by the CD44 receptors through a clathrin-dependent endocytic pathway. More importantly, MH-MNs exhibited a higher in vivo antitumor potency and induced more tumor cell apoptosis than did MH-PNs, following intravenous administration to S180 tumor-bearing mice. Overall, the results imply that the developed nanoparticles are promising vehicles for the targeted delivery of lipophilic anticancer drugs.
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Affiliation(s)
- Sarra Abbad
- Department of Pharmaceutics, China Pharmaceutical University, Nanjing, People's Republic of China ; Department of Pharmacy, Abou Bekr Belkaid University, Tlemcen, Algeria
| | - Cheng Wang
- Department of Pharmaceutics, China Pharmaceutical University, Nanjing, People's Republic of China
| | - Ayman Yahia Waddad
- Department of Pharmaceutics, China Pharmaceutical University, Nanjing, People's Republic of China
| | - Huixia Lv
- Department of Pharmaceutics, China Pharmaceutical University, Nanjing, People's Republic of China
| | - Jianping Zhou
- Department of Pharmaceutics, China Pharmaceutical University, Nanjing, People's Republic of China
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Yang Q, Moulder k R, Cohen MS, Cai S, Forrest LM. Cabozantinib Loaded DSPE-PEG 2000 Micelles as Delivery System: Formulation, Characterization and Cytotoxicity Evaluation. BAOJ PHARMACEUTICAL SCIENCES 2015; 1:001. [PMID: 25688382 PMCID: PMC4327881] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Cabozantinib, a potent pan-tyrosine kinase inhibitor, has been reported to provide enhanced antitumor efficacy by simultaneously inhibiting both MET and VEGF pathways, which are critical to tumor angiogenesis, survival and migration. It's very poor water solubility prevents its administration by the intravenous route, which may be important in patients unable to take the drug orally. In this study, we developed an efficient PEG-lipid-based polymeric micelle formulation with enhanced drug solubility and stability for cabozantinib delivery. DSPE-PEG2000 micelles encapsulating cabozantinib were prepared by a thin-film rehydration method followed by a lyophilization process to generate the dry dosage form. The average hydrodynamic diameter of freshly prepared micelles was 11 nm with a narrow size distribution, and the dry micelle cake could be fully reconstituted by rehydration. Approximately 75% of the drug was encapsulated into the lyophilized cake, and a sustained drug release profile was observed in simulated normal physiological release medium. Compared with the free cabozantinib solution, the drug-loaded micelles displayed significantly enhanced intracellular accumulation and cytotoxicity in human glioblastoma cancer cells and non-small lung cancer cells. These results suggest that the micellar formulation of cabozantinib may serve as a promising nanocarrier in anticancer treatments.
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Affiliation(s)
- Qiuhong Yang
- Department of Pharmaceutical Chemistry, University of Kansas, Lawrence, KS, USA
| | - Ryan Moulder k
- Department of Pharmaceutical Chemistry, University of Kansas, Lawrence, KS, USA
| | - Mark S Cohen
- Department of Surgery, University of Michigan Hospital and Health Systems, Ann Arbor, MI, USA
| | - Shuang Cai
- Department of Pharmaceutical Chemistry, University of Kansas, Lawrence, KS, USA
- HylaPharm, Lawrence, KS, USA
| | - Laird M Forrest
- Department of Pharmaceutical Chemistry, University of Kansas, Lawrence, KS, USA
- HylaPharm, Lawrence, KS, USA
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Peng S, Hung WL, Peng YS, Chu IM. Oligoalanine-modified Pluronic-F127 nanocarriers for the delivery of curcumin with enhanced entrapment efficiency. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2014; 25:1225-39. [DOI: 10.1080/09205063.2014.924059] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Li X, Li H, Yi W, Chen J, Liang B. Acid-triggered core cross-linked nanomicelles for targeted drug delivery and magnetic resonance imaging in liver cancer cells. Int J Nanomedicine 2013; 8:3019-31. [PMID: 23976852 PMCID: PMC3746790 DOI: 10.2147/ijn.s45767] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Purpose To research the acid-triggered core cross-linked folate-poly(ethylene glycol)-b-poly[N-(N′,N′-diisopropylaminoethyl) glutamine] (folated-PEG-P[GA-DIP]) amphiphilic block copolymer for targeted drug delivery and magnetic resonance imaging (MRI) in liver cancer cells. Methods As an appropriate receptor of protons, the N,N-diisopropyl tertiary amine group (DIP) was chosen to conjugate with the side carboxyl groups of poly(ethylene glycol)-b-poly (L-glutamic acid) to obtain PEG-P(GA-DIP) amphiphilic block copolymers. By ultrasonic emulsification, PEG-P(GA-DIP) could be self-assembled to form nanosized micelles loading doxorubicin (DOX) and superparamagnetic iron oxide nanoparticles (SPIONs) in aqueous solution. When PEG-P(GA-DIP) nanomicelles were combined with folic acid, the targeted effect of folated-PEG-P(GA-DIP) nanomicelles was evident in the fluorescence and MRI results. Results To further increase the loading efficiency and the cell-uptake of encapsulated drugs (DOX and SPIONs), DIP (pKa≈6.3) groups were linked with ~50% of the side carboxyl groups of poly(L-glutamic acid) (PGA), to generate the core cross-linking under neutral or weakly acidic conditions. Under the acidic condition (eg, endosome/lysosome), the carboxyl groups were neutralized to facilitate disassembly of the P(GA-DIP) blocks’ cross-linking, for duly accelerating the encapsulated drug release. Combined with the tumor-targeting effect of folic acid, specific drug delivery to the liver cancer cells and MRI diagnosis of these cells were greatly enhanced. Conclusion Acid-triggered and folate-decorated nanomicelles encapsulating SPIONs and DOX, facilitate the targeted MRI diagnosis and therapeutic effects in tumors.
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Affiliation(s)
- Xian Li
- Radiology Department, The Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, People's Republic of China
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Estevanato LLC, Da Silva JR, Falqueiro AM, Mosiniewicz-Szablewska E, Suchocki P, Tedesco AC, Morais PC, Lacava ZGM. Co-nanoencapsulation of magnetic nanoparticles and selol for breast tumor treatment: in vitro evaluation of cytotoxicity and magnetohyperthermia efficacy. Int J Nanomedicine 2012; 7:5287-99. [PMID: 23055734 PMCID: PMC3468278 DOI: 10.2147/ijn.s35279] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
Antitumor activities have been described in selol, a hydrophobic mixture of molecules containing selenium in their structure, and also in maghemite magnetic nanoparticles (MNPs). Both selol and MNPs were co-encapsulated within poly(lactic-co-glycolic acid) (PLGA) nanocapsules for therapeutic purposes. The PLGA-nanocapsules loaded with MNPs and selol were labeled MSE-NC and characterized by transmission and scanning electron microscopy, electrophoretic mobility, photon correlation spectroscopy, presenting a monodisperse profile, and positive charge. The antitumor effect of MSE-NC was evaluated using normal (MCF-10A) and neoplastic (4T1 and MCF-7) breast cell lines. Nanocapsules containing only MNPs or selol were used as control. MTT assay showed that the cytotoxicity induced by MSE-NC was dose and time dependent. Normal cells were less affected than tumor cells. Cell death occurred mainly by apoptosis. Further exposure of MSE-NC treated neoplastic breast cells to an alternating magnetic field increased the antitumor effect of MSE-NC. It was concluded that selol-loaded magnetic PLGA-nanocapsules (MSE-NC) represent an effective magnetic material platform to promote magnetohyperthermia and thus a potential system for antitumor therapy.
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Yu J, Xie X, Zheng M, Yu L, Zhang L, Zhao J, Jiang D, Che X. Fabrication and characterization of nuclear localization signal-conjugated glycol chitosan micelles for improving the nuclear delivery of doxorubicin. Int J Nanomedicine 2012. [PMID: 23049255 DOI: 10.2147/ijn.s36150ijn-7-5079] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND Supramolecular micelles as drug-delivery vehicles are generally unable to enter the nucleus of nondividing cells. In the work reported here, nuclear localization signal (NLS)-modified polymeric micelles were studied with the aim of improving nuclear drug delivery. METHODS In this research, cholesterol-modified glycol chitosan (CHGC) was synthesized. NLS-conjugated CHGC (NCHGC) was synthesized and characterized using proton nuclear magnetic resonance spectroscopy, dynamic light scattering, and fluorescence spectroscopy. Doxorubicin (DOX), an anticancer drug with an intracellular site of action in the nucleus, was chosen as a model drug. DOX-loaded micelles were prepared by an emulsion/solvent evaporation method. The cellular uptake of different DOX formulations was analyzed by flow cytometry and confocal laser scanning microscopy. The cytotoxicity of blank micelles, free DOX, and DOX-loaded micelles in vitro was investigated by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay in HeLa and HepG2 cells. RESULTS The degree of substitution was 5.9 cholesterol and 3.8 NLS groups per 100 sugar residues of the NCHGC conjugate. The critical aggregation concentration of the NCHGC micelles in aqueous solution was 0.0209 mg/mL. The DOX-loaded NCHGC (DNCHGC) micelles were observed as being almost spherical in shape under transmission electron microscopy, and the size was determined as 248 nm by dynamic light scattering. The DOX-loading content of the DNCHGC micelles was 10.1%. The DOX-loaded micelles showed slow drug-release behavior within 72 hours in vitro. The DNCHGC micelles exhibited greater cellular uptake and higher amounts of DOX in the nuclei of HeLa cells than free DOX and DOX-loaded CHGC (DCHGC) micelles. The half maximal inhibitory concentration (IC(50)) values of free DOX, DCHGC, and DNCHGC micelles against HepG2 cells were 4.063, 0.591, and 0.171 μg/mL, respectively. Moreover, the IC(50) values of free DOX (3.210 μg/mL) and the DCHGC micelles (1.413 μg/mL) against HeLa cells were nearly 6.96- and 3.07-fold (P < 0.01), respectively, higher than the IC(50) value of the DNCHGC micelles (0.461 μg/mL). CONCLUSION The results of this study suggest that novel NCHGC micelles could be a potential carrier for nucleus-targeting delivery.
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Affiliation(s)
- Jingmou Yu
- Key Laboratory of Systems Biology Medicine of Jiangxi Province, College of Basic Medical Science, Jiujiang University, Jiujiang, China.
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Yu J, Xie X, Zheng M, Yu L, Zhang L, Zhao J, Jiang D, Che X. Fabrication and characterization of nuclear localization signal-conjugated glycol chitosan micelles for improving the nuclear delivery of doxorubicin. Int J Nanomedicine 2012; 7:5079-90. [PMID: 23049255 PMCID: PMC3459689 DOI: 10.2147/ijn.s36150] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022] Open
Abstract
Background Supramolecular micelles as drug-delivery vehicles are generally unable to enter the nucleus of nondividing cells. In the work reported here, nuclear localization signal (NLS)-modified polymeric micelles were studied with the aim of improving nuclear drug delivery. Methods In this research, cholesterol-modified glycol chitosan (CHGC) was synthesized. NLS-conjugated CHGC (NCHGC) was synthesized and characterized using proton nuclear magnetic resonance spectroscopy, dynamic light scattering, and fluorescence spectroscopy. Doxorubicin (DOX), an anticancer drug with an intracellular site of action in the nucleus, was chosen as a model drug. DOX-loaded micelles were prepared by an emulsion/solvent evaporation method. The cellular uptake of different DOX formulations was analyzed by flow cytometry and confocal laser scanning microscopy. The cytotoxicity of blank micelles, free DOX, and DOX-loaded micelles in vitro was investigated by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay in HeLa and HepG2 cells. Results The degree of substitution was 5.9 cholesterol and 3.8 NLS groups per 100 sugar residues of the NCHGC conjugate. The critical aggregation concentration of the NCHGC micelles in aqueous solution was 0.0209 mg/mL. The DOX-loaded NCHGC (DNCHGC) micelles were observed as being almost spherical in shape under transmission electron microscopy, and the size was determined as 248 nm by dynamic light scattering. The DOX-loading content of the DNCHGC micelles was 10.1%. The DOX-loaded micelles showed slow drug-release behavior within 72 hours in vitro. The DNCHGC micelles exhibited greater cellular uptake and higher amounts of DOX in the nuclei of HeLa cells than free DOX and DOX-loaded CHGC (DCHGC) micelles. The half maximal inhibitory concentration (IC50) values of free DOX, DCHGC, and DNCHGC micelles against HepG2 cells were 4.063, 0.591, and 0.171 μg/mL, respectively. Moreover, the IC50 values of free DOX (3.210 μg/mL) and the DCHGC micelles (1.413 μg/mL) against HeLa cells were nearly 6.96- and 3.07-fold (P < 0.01), respectively, higher than the IC50 value of the DNCHGC micelles (0.461 μg/mL). Conclusion The results of this study suggest that novel NCHGC micelles could be a potential carrier for nucleus-targeting delivery.
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Affiliation(s)
- Jingmou Yu
- Key Laboratory of Systems Biology Medicine of Jiangxi Province, College of Basic Medical Science, Jiujiang University, Jiujiang, China.
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Wang R, Xiao R, Zeng Z, Xu L, Wang J. Application of poly(ethylene glycol)-distearoylphosphatidylethanolamine (PEG-DSPE) block copolymers and their derivatives as nanomaterials in drug delivery. Int J Nanomedicine 2012; 7:4185-98. [PMID: 22904628 PMCID: PMC3418104 DOI: 10.2147/ijn.s34489] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2012] [Indexed: 12/14/2022] Open
Abstract
Poly(ethylene glycol)–distearoylphosphatidylethanolamine (PEG-DSPE) block copolymers are biocompatible and amphiphilic polymers that can be widely utilized in the preparation of liposomes, polymeric nanoparticles, polymer hybrid nanoparticles, solid lipid nanoparticles, lipid–polymer hybrid nanoparticles, and microemulsions. Particularly, the terminal groups of PEG can be activated and linked to various targeting ligands, which can prolong the circulation time, improve the drug bioavailability, reduce undesirable side effects, and especially target specific cells, tissues, and even the intracellular localization in organelles. This review herein aims to describe recent developments in drug carriers exploiting PEG-DSPE block copolymers and their derivatives, and the incorporation of different ligands to the end groups of PEG-DSPE to target delivery, focusing on their modification approaches, advantages, applications, and the probable associated drawbacks.
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Affiliation(s)
- Rongrong Wang
- Campus Hospital of Zhejiang University, and Research Center for Biomedicine and Health, Hangzhou Normal University, 1378 Wen Yi Xi Road, Hangzhou, Zhejiang, China. /
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Zhao Y, Duan S, Zeng X, Liu C, Davies NM, Li B, Forrest ML. Prodrug strategy for PSMA-targeted delivery of TGX-221 to prostate cancer cells. Mol Pharm 2012; 9:1705-16. [PMID: 22494444 DOI: 10.1021/mp3000309] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
TGX-221 is a potent, selective, and cell membrane permeable inhibitor of the PI3K p110β catalytic subunit. Recent studies showed that TGX-221 has antiproliferative activity against PTEN-deficient tumor cell lines including prostate cancers. The objective of this study was to develop an encapsulation system for parenterally delivering TGX-221 to the target tissue through a prostate-specific membrane aptamer (PSMAa10) with little or no side effects. In this study, PEG-PCL micelles were formulated to encapsulate the drug, and a prodrug strategy was pursued to improve the stability of the carrier system. Fluorescence imaging studies demonstrated that the cellular uptake of both drug and nanoparticles was significantly improved by targeted micelles in a PSMA positive cell line. The area under the plasma concentration time curve of the micelle formulation in nude mice was 2.27-fold greater than that of the naked drug, and the drug clearance rate was 6.16-fold slower. These findings suggest a novel formulation approach for improving site-specific drug delivery of a molecular-targeted prostate cancer treatment.
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Affiliation(s)
- Yunqi Zhao
- Department of Pharmaceutical Chemistry, The University of Kansas , Simons Laboratories, 2095 Constant Ave. Rm. 136B, Lawrence, Kansas 66047, United States
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Saxena V, Hussain MD. Poloxamer 407/TPGS mixed micelles for delivery of gambogic acid to breast and multidrug-resistant cancer. Int J Nanomedicine 2012; 7:713-21. [PMID: 22359450 PMCID: PMC3284221 DOI: 10.2147/ijn.s28745] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
Background Delivery of a high concentration of anticancer drugs specifically to cancer cells remains the biggest challenge for the treatment of multidrug-resistant cancer. Poloxamers and D-α-Tocopheryl polyethylene glycol 1000 succinate (TPGS) are known inhibitors of P-glycoprotein (P-gp). Mixed micelles prepared from Poloxamer 407 and TPGS may increase the therapeutic efficacy of the drug by delivering high concentrations inside the cells and inhibiting P-gp. Gambogic acid (GA) is a naturally derived novel anticancer agent, but poor solubility and toxic side effects limit its use. In this study, we have developed Poloxamer 407 and TPGS mixed micelle-encapsulating GA for the treatment of breast and multidrug-resistant cancer. Methods GA-loaded Poloxamer 407/TPGS mixed micelles were prepared using a thin film hydration method, and their physicochemical properties were characterized. Cellular accumulation and cytotoxicity of the GA-loaded Poloxamer 407/TPGS mixed micelles were studied in breast cancer cells, MCF-7 cells, and multidrug-resistant NCI/ADR-RES cells. Results The diameter of GA-loaded Poloxamer 407/TPGS mixed micelles was about 17.4 ± 0.5 nm and the zeta potential −13.57 mV. The entrapment efficiency of GA was 93.1% ± 0.5% and drug loading was about 9.38% ± 0.29%. Differential scanning calorimetry and X-ray powder diffraction studies confirmed that GA is encapsulated by the polymers. The in vitro release studies showed that mixed micelles sustained the release of GA for more than 4 days. Results from cellular uptake studies indicated that GA-loaded Poloxamer 407/TPGS mixed micelles had increased cellular uptake of GA in NCI/ADR-RES cells. Cytotoxicity of GA-loaded Poloxamer 407/TPGS mixed micelles was found to be 2.9 times higher in multidrug-resistant NCI/ADR-RES cells, and 1.6 times higher in MCF-7 cells, as compared with unencapsulated GA. Conclusion This study suggests that Poloxamer 407/TPGS mixed micelles can be used as a delivery system for GA to treat breast and multidrug-resistant cancer.
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Affiliation(s)
- Vipin Saxena
- Department of Pharmaceutical Sciences, Irma Lerma Rangel College of Pharmacy, Texas A&M Health Science Center, Kingsville, TX, USA
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Wang K, Liu L, Zhang T, Zhu YL, Qiu F, Wu XG, Wang XL, Hu FQ, Huang J. Oxaliplatin-incorporated micelles eliminate both cancer stem-like and bulk cell populations in colorectal cancer. Int J Nanomedicine 2011; 6:3207-18. [PMID: 22238509 PMCID: PMC3254265 DOI: 10.2147/ijn.s26268] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
Purpose The failure of cancer treatments is partly due to the enrichment of cancer stem-like cells (CSLCs) that are resistant to conventional chemotherapy. A novel micelle formulation of oxaliplatin (OXA) encapsulated in chitosan vesicle was developed. The authors postulate that micelle encapsulation of OXA would eliminate both CSLCs and bulk cancer cells in colorectal cancer (CRC). Experimental design In this study, using stearic acid-g-chitosan oligosaccharide (CSO-SA) polymeric micelles as a drug-delivery system, OXA-loaded CSO-SA micelles (CSO-SA/OXA) were prepared. Intracellular uptake of CSO-SA/OXA micelles was assessed by confocal microscope. The effects of free OXA, the empty carrier, and CSO-SA/OXA micelles were tested using human CRC cell lines in vitro and in vivo. Results The micelles showed excellent internalization ability that increased OXA accumulation both in CRC cells and tissues. Furthermore, CSO-SA/OXA micelles could either increase the cytotoxicity of OXA against the bulk cancer cells or reverse chemoresistance of CSLC subpopulations in vitro. Intravenous administration of CSO-SA/OXA micelles effectively suppressed the tumor growth and reduced CD133+/CD24+ cell (putative CRC CSLC markers) compared with free OXA treatment, which caused CSLC enrichment in xenograft tumors (P < 0.05). Conclusion The results of this study indicate that CSO-SA micelle as a drug-delivery carrier is effective for eradicating CSLCs and may act as a new option for CRC therapy.
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Affiliation(s)
- Ke Wang
- Cancer Institute (Key Laboratory of Cancer Prevention and Intervention, National Ministry of Education; Provincial Key Laboratory of Molecular Biology in Medical Sciences), The Second Affiliated Hospital, Zhejiang University School of Medicine, Zhejiang University, Hangzhou, China
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