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Darguzyte M, Rama E, Rix A, Baier J, Hermann J, Rezvantalab S, Khedri M, Jankowski J, Kiessling F. Riboflavin-targeted polymers improve tolerance of paclitaxel while maintaining therapeutic efficacy. NANOMEDICINE : NANOTECHNOLOGY, BIOLOGY, AND MEDICINE 2024; 58:102751. [PMID: 38705222 DOI: 10.1016/j.nano.2024.102751] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Revised: 03/15/2024] [Accepted: 04/26/2024] [Indexed: 05/07/2024]
Abstract
Active targeting can enhance precision and efficacy of drug delivery systems (DDS) against cancers. Riboflavin (RF) is a promising ligand for active targeting due to its biocompatibility and high riboflavin-receptor expression in cancers. In this study, RF-targeted 4-arm polyethylene glycol (PEG) stars conjugated with Paclitaxel (PTX), named PEG PTX RF, were evaluated as a targeted DDS. In vitro, PEG PTX RF exhibited higher toxicity against tumor cells compared to the non-targeted counterpart (PEG PTX), while free PTX displayed the highest acute toxicity. In vivo, all treatments were similarly effective, but PEG PTX RF-treated tumors showed fewer proliferating cells, pointing to sustained therapy effects. Moreover, PTX-treated animals' body and liver weights were significantly reduced, whereas both remained stable in PEG PTX and PEG PTX RF-treated animals. Overall, our targeted and non-targeted DDS reduced PTX's adverse effects, with RF targeting promoted drug uptake in cancer cells for sustained therapeutic effect.
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Affiliation(s)
- Milita Darguzyte
- Institute for Experimental Molecular Imaging, University Hospital Aachen, Forckenbeckstrasse 55, 52074 Aachen, Germany; University of Cologne, Faculty of Medicine and University Hospital Cologne, Department I of Internal Medicine, Center for Integrated Oncology Aachen Bonn Cologne Düsseldorf, Center for Molecular Medicine Cologne, 50931 Cologne, Germany; Institute for Translational Immune-Oncology, Cancer Research Center Cologne-Essen (CCCE), University of Cologne, 50931 Cologne, Germany
| | - Elena Rama
- Institute for Experimental Molecular Imaging, University Hospital Aachen, Forckenbeckstrasse 55, 52074 Aachen, Germany
| | - Anne Rix
- Institute for Experimental Molecular Imaging, University Hospital Aachen, Forckenbeckstrasse 55, 52074 Aachen, Germany
| | - Jasmin Baier
- Institute for Experimental Molecular Imaging, University Hospital Aachen, Forckenbeckstrasse 55, 52074 Aachen, Germany
| | - Juliane Hermann
- Institute of Molecular Cardiovascular Research, Medical Faculty, RWTH Aachen University, Aachen, Germany
| | - Sima Rezvantalab
- Department of Chemical Engineering, Urmia University of Technology, 57166-419, Urmia, Iran
| | - Mohammad Khedri
- Computational Biology and Chemistry Group (CBCG) Universal Scientific Education and Research Network (USERN), 19839-63113 Tehran, Iran
| | - Joachim Jankowski
- Institute of Molecular Cardiovascular Research, Medical Faculty, RWTH Aachen University, Aachen, Germany
| | - Fabian Kiessling
- Institute for Experimental Molecular Imaging, University Hospital Aachen, Forckenbeckstrasse 55, 52074 Aachen, Germany; Fraunhofer MEVIS, Institute for Medical Image Computing, Forckenbeckstrasse 55, 52074 Aachen, Germany.
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2
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Kemp JA, Keebaugh A, Edson JA, Chow D, Kleinman MT, Chew YC, McCracken AN, Edinger AL, Kwon YJ. Biocompatible Chemotherapy for Leukemia by Acid-Cleavable, PEGylated FTY720. Bioconjug Chem 2020; 31:673-684. [PMID: 31986014 DOI: 10.1021/acs.bioconjchem.9b00822] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Targeting the inability of cancerous cells to adapt to metabolic stress is a promising alternative to conventional cancer chemotherapy. FTY720 (Gilenya), an FDA-approved drug for the treatment of multiple sclerosis, has recently been shown to inhibit cancer progression through the down-regulation of essential nutrient transport proteins, selectively starving cancer cells to death. However, the clinical use of FTY720 for cancer therapy is prohibited because of its capability of inducing immunosuppression (lymphopenia) and bradycardia when phosphorylated upon administration. A prodrug to specifically prevent phosphorylation during circulation, hence avoiding bradycardia and lymphopenia, was synthesized by capping its hydroxyl groups with polyethylene glycol (PEG) via an acid-cleavable ketal linkage. Improved aqueous solubility was also accomplished by PEGylation. The prodrug reduces to fully potent FTY720 upon cellular uptake and induces metabolic stress in cancer cells. Enhanced release of FTY720 at a mildly acidic endosomal pH and the ability to substantially down-regulate cell-surface nutrient transporter proteins in leukemia cells only by an acid-cleaved drug were confirmed. Importantly, the prodrug demonstrated nearly identical efficacy to FTY720 in an animal model of BCR-Abl-driven leukemia without inducing bradycardia or lymphopenia in vivo, highlighting its potential clinical value. The prodrug formulation of FTY720 demonstrates the utility of precisely engineering a drug to avoid undesirable effects by tackling specific molecular mechanisms as well as a financially favorable alternative to new drug development. A multitude of existing cancer therapeutics may be explored for prodrug formulation to avoid specific side effects and preserve or enhance therapeutic efficacy.
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Affiliation(s)
| | | | | | | | | | - Yap Ching Chew
- Zymo Research Corporation, Irvine, California 92604, United States
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3
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Gao J, Jiang S, Zhang X, Fu Y, Liu Z. Preparation, characterization and in vitro activity of a docetaxel-albumin conjugate. Bioorg Chem 2018; 83:154-160. [PMID: 30366315 DOI: 10.1016/j.bioorg.2018.10.032] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2018] [Revised: 10/11/2018] [Accepted: 10/17/2018] [Indexed: 12/17/2022]
Abstract
Docetaxel is one of the most effective anticancer drugs. However, the current formulation of docetaxel contains Tween 80 and ethanol as the solvent, which can cause severe side effects. Consequently, the development of new type of formulation of docetaxel with high efficiency and low side effects is a very important issue. In this study, we explored the covalent linking of docetaxel and albumin via one organic linker. 6-Maleimidocaproic acid was applied to link the C2' hydroxyl group of docetaxel with the cysteine-34 of albumin to obtain 1:1 docetaxel-albumin conjugate. The synthesized conjugate can control the release of docetaxel in the bovine serum. Furthermore, in vitro cell cytotoxicity experiments indicated that the docetaxel-albumin conjugate have high activities for human prostate cancer cell line PC3 and human breast cancer cell line MCF-7. The present study provides a valuable strategy for further development of a new type of docetaxel-albumin prodrug.
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Affiliation(s)
- Jing Gao
- Key Laboratory of Forest Plant Ecology, Ministry of Education, Northeast Forestry University, Harbin 150040, People's Republic of China; State Engineering Laboratory of Bio-Resource Eco-Utilization, Harbin 150040, People's Republic of China
| | - Shougang Jiang
- Key Laboratory of Forest Plant Ecology, Ministry of Education, Northeast Forestry University, Harbin 150040, People's Republic of China; State Engineering Laboratory of Bio-Resource Eco-Utilization, Harbin 150040, People's Republic of China
| | - Xuewei Zhang
- Key Laboratory of Forest Plant Ecology, Ministry of Education, Northeast Forestry University, Harbin 150040, People's Republic of China; State Engineering Laboratory of Bio-Resource Eco-Utilization, Harbin 150040, People's Republic of China
| | - Yujie Fu
- Key Laboratory of Forest Plant Ecology, Ministry of Education, Northeast Forestry University, Harbin 150040, People's Republic of China; State Engineering Laboratory of Bio-Resource Eco-Utilization, Harbin 150040, People's Republic of China
| | - Zhiguo Liu
- Key Laboratory of Forest Plant Ecology, Ministry of Education, Northeast Forestry University, Harbin 150040, People's Republic of China; State Engineering Laboratory of Bio-Resource Eco-Utilization, Harbin 150040, People's Republic of China.
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4
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Dong X, Shu X, Wang Y, Niu Z, Xu S, Zhang Y, Zhao S. Synthesis, characterization and in vitro release performance of the pegylated valnemulin prodrug. J Vet Med Sci 2018; 80:173-180. [PMID: 29187697 PMCID: PMC5797878 DOI: 10.1292/jvms.17-0434] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Valnemulin, successfully developed by Sandoz in 1984, is a new generation derivative of pleuromutilin related to tiamulin. Valnemulin has low water-solubility, a short half-life period,
low bioavailability, and instability. The application of valnemulin was restricted. Therefore, finding a more moderate delivery system is necessary to improve the shortcomings of
valnemulin. The purpose of the study was to improve the strong stability and the irritation caused by of valnemulin hydrochloride power through pegylated-valnemulin
prodrug mode. The prepared pegylated-valnemulin prodrug was characterized and evaluated by in vitro release performance under buffer solutions with pH levels of 7.4 and 3.6. The loading
rate of valnemulin in PEG-succinic-valnemulin prodrug was determined by ultraviolet spectrophotometer and high performance liquid chromatography (HPLC). HPLC with evaporative light
scattering detector was applied to determine the amount of PEG-succinic acid. The loading rate of valnemulin in PEG-succinic-valnemulin prodrug was 6.46%.
PEG-succinic-valnemulin prodrug demonstrated a satisfactory solubility of valnemulin with 523 mg·ml−1 and excellent stability verified by the stability
experiment. The result of the in vitro release test showed that the prepared PEG-valnemulin prodrug has controlled release ability and the release rate of valnemulin
from PEG-valnemulin prodrug with a pH of 7.4 was 64.98%, which was higher than that of pH3.6 with release rate of 31.90%. Therefore, the prepared PEG-succinic-valnemulin prodrug has
great application potential.
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Affiliation(s)
- Xinrui Dong
- School of Chemical and Pharmaceutical Engineering, Hebei University of Science and Technology, Yuhua East Road, Shijiazhuang 050018, China
| | - Xueye Shu
- School of Chemical and Pharmaceutical Engineering, Hebei University of Science and Technology, Yuhua East Road, Shijiazhuang 050018, China
| | - Yingnan Wang
- School of Chemical and Pharmaceutical Engineering, Hebei University of Science and Technology, Yuhua East Road, Shijiazhuang 050018, China
| | - Zhaohuan Niu
- School of Chemical and Pharmaceutical Engineering, Hebei University of Science and Technology, Yuhua East Road, Shijiazhuang 050018, China
| | - Shixia Xu
- School of Chemical and Pharmaceutical Engineering, Hebei University of Science and Technology, Yuhua East Road, Shijiazhuang 050018, China
| | - Yue Zhang
- School of Chemical and Pharmaceutical Engineering, Hebei University of Science and Technology, Yuhua East Road, Shijiazhuang 050018, China.,Hebei Research Center of Pharmaceutical and Chemical Engineering, Yuhua East Road, Shijiazhuang 050018, China.,State Key Laboratory Breeding Base-Hebei Province Key Laboratory of Molecular Chemistry for Drugs, Yuhua East Road, Shijiazhuang 050018, China
| | - Shuchun Zhao
- School of Chemical and Pharmaceutical Engineering, Hebei University of Science and Technology, Yuhua East Road, Shijiazhuang 050018, China.,Hebei Research Center of Pharmaceutical and Chemical Engineering, Yuhua East Road, Shijiazhuang 050018, China
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5
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Tran TTD, Tran PHL, Amin HH, Lee BJ. Biodistribution and in vivo performance of fattigation-platform theranostic nanoparticles. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017. [DOI: 10.1016/j.msec.2017.05.029] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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6
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Han X, Dong X, Li J, Wang M, Luo L, Li Z, Lu X, He R, Xu R, Gong M. Free paclitaxel-loaded E-selectin binding peptide modified micelle self-assembled from hyaluronic acid-paclitaxel conjugate inhibit breast cancer metastasis in a murine model. Int J Pharm 2017; 528:33-46. [DOI: 10.1016/j.ijpharm.2017.05.063] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2017] [Revised: 05/07/2017] [Accepted: 05/25/2017] [Indexed: 01/15/2023]
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7
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Kim J, Lee J, Lee YM, Pramanick S, Im S, Kim WJ. Andrographolide-loaded polymerized phenylboronic acid nanoconstruct for stimuli-responsive chemotherapy. J Control Release 2017; 259:203-211. [DOI: 10.1016/j.jconrel.2016.10.029] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2016] [Revised: 10/05/2016] [Accepted: 10/26/2016] [Indexed: 12/12/2022]
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8
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Liang Y, Tian B, Zhang J, Li K, Wang L, Han J, Wu Z. Tumor-targeted polymeric nanostructured lipid carriers with precise ratiometric control over dual-drug loading for combination therapy in non-small-cell lung cancer. Int J Nanomedicine 2017; 12:1699-1715. [PMID: 28280336 PMCID: PMC5340246 DOI: 10.2147/ijn.s121262] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Gemcitabine (GEM) and paclitaxel (PTX) are effective combination anticancer agents against non-small-cell lung cancer (NSCLC). At the present time, a main challenge of combination treatment is the precision of control that will maximize the combined effects. Here, we report a novel method to load GEM (hydrophilic) and PTX (hydrophobic) into simplex tumor-targeted nanostructured lipid carriers (NLCs) for accurate control of the ratio of the two drugs. We covalently preconjugated the dual drugs through a hydrolyzable ester linker to form drug conjugates. N-acetyl-d-glucosamine (NAG) is a glucose receptor-targeting ligand. We added NAG to the formation of NAG-NLCs. In general, synthesis of poly(6-O-methacryloyl-d-galactopyranose)–GEM/PTX (PMAGP-GEM/PTX) conjugates was demonstrated, and NAG-NLCs were prepared using emulsification and solvent evaporation. NAG-NLCs displayed sphericity with an average diameter of 120.3±1.3 nm, a low polydispersity index of 0.233±0.04, and accurate ratiometric control over the two drugs. A cytotoxicity assay showed that the NAG-NLCs had better antitumor activity on NSCLC cells than normal cells. There was an optimal ratio of the two drugs, exhibiting the best cytotoxicity and combinatorial effects among all the formulations we tested. In comparison with both the free-drug combinations and separately nanopackaged drug conjugates, PMAGP-GEM/PTX NAG-NLCs (3:1) exhibited superior synergism. Flow cytometry and confocal laser scanning microscopy showed that NAG-NLCs exhibited higher uptake efficiency in A549 cells via glucose receptor-mediated endocytosis. This combinatorial delivery system settles problems with ratiometric coloading of hydrophilic and hydrophobic drugs for tumor-targeted combination therapy to achieve maximal anticancer efficacy in NSCLC.
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Affiliation(s)
- Yan Liang
- School of Pharmacy, Binzhou Medical University
| | | | - Jing Zhang
- School of Pharmacy, Binzhou Medical University
| | - Keke Li
- School of Pharmacy, Binzhou Medical University
| | - Lele Wang
- School of Pharmacy, Binzhou Medical University
| | | | - Zimei Wu
- School of Pharmacy, Yantai University, Yantai, China
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9
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Bui QT, Jeon YS, Kim J, Kim JH. Stabilized polymeric nanoparticle from amphiphilic mPEG-b-polyaspartamides containing ‘click’ functional groups. INT J POLYM MATER PO 2017. [DOI: 10.1080/00914037.2016.1263957] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- Quang Tri Bui
- School of Chemical Engineering, Sungkyunkwan University, Suwon, South Korea
| | - Young Sil Jeon
- School of Chemical Engineering, Sungkyunkwan University, Suwon, South Korea
| | - Jaeyun Kim
- School of Chemical Engineering, Sungkyunkwan University, Suwon, South Korea
| | - Ji-Heung Kim
- School of Chemical Engineering, Sungkyunkwan University, Suwon, South Korea
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10
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Lv S, Wu Y, Dang J, Tang Z, Song Z, Ma S, Wang X, Chen X, Cheng J, Yin L. Investigation on the controlled synthesis and post-modification of poly-[(N-2-hydroxyethyl)-aspartamide]-based polymers. Polym Chem 2017. [DOI: 10.1039/c6py02230h] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We report the controlled synthesis of PHEA-based polymers and enhanced the post-modification reactivity by reducing the intramolecular hydrogen bonding.
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11
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Aderibigbe B, Ray SS. Preparation, characterization and in vitro release kinetics of polyaspartamide-based conjugates containing antimalarial and anticancer agents for combination therapy. J Drug Deliv Sci Technol 2016. [DOI: 10.1016/j.jddst.2016.09.006] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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12
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Meng Z, Lv Q, Lu J, Yao H, Lv X, Jiang F, Lu A, Zhang G. Prodrug Strategies for Paclitaxel. Int J Mol Sci 2016; 17:E796. [PMID: 27223283 PMCID: PMC4881612 DOI: 10.3390/ijms17050796] [Citation(s) in RCA: 57] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2016] [Revised: 05/04/2016] [Accepted: 05/11/2016] [Indexed: 01/08/2023] Open
Abstract
Paclitaxel is an anti-tumor agent with remarkable anti-tumor activity and wide clinical uses. However, it is also faced with various challenges especially for its poor water solubility and low selectivity for the target. To overcome these disadvantages of paclitaxel, approaches using small molecule modifications and macromolecule modifications have been developed by many research groups from all over the world. In this review, we discuss the different strategies especially prodrug strategies that are currently used to make paclitaxel more effective.
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Affiliation(s)
- Ziyuan Meng
- Institution for Advancing Translational Medicine in Bone & Joint Diseases, School of Chinese Medicine, Hong Kong Baptist University, Hong Kong 999077, China.
- Research Group of Precision Medicine and Innovative Drug, HKBU (Hong Kong Baptist University) (Haimen) Institute of Science and Technology, Haimen 226100, China.
| | - Quanxia Lv
- Institution for Advancing Translational Medicine in Bone & Joint Diseases, School of Chinese Medicine, Hong Kong Baptist University, Hong Kong 999077, China.
- Research Group of Precision Medicine and Innovative Drug, HKBU (Hong Kong Baptist University) (Haimen) Institute of Science and Technology, Haimen 226100, China.
| | - Jun Lu
- Institution for Advancing Translational Medicine in Bone & Joint Diseases, School of Chinese Medicine, Hong Kong Baptist University, Hong Kong 999077, China.
| | - Houzong Yao
- Institution for Advancing Translational Medicine in Bone & Joint Diseases, School of Chinese Medicine, Hong Kong Baptist University, Hong Kong 999077, China.
| | - Xiaoqing Lv
- Research Group of Precision Medicine and Innovative Drug, HKBU (Hong Kong Baptist University) (Haimen) Institute of Science and Technology, Haimen 226100, China.
| | - Feng Jiang
- Institution for Advancing Translational Medicine in Bone & Joint Diseases, School of Chinese Medicine, Hong Kong Baptist University, Hong Kong 999077, China.
- Research Group of Precision Medicine and Innovative Drug, HKBU (Hong Kong Baptist University) (Haimen) Institute of Science and Technology, Haimen 226100, China.
- The State Key Laboratory Base of Novel Functional Materials and Preparation Science, Faculty of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, China.
| | - Aiping Lu
- Institution for Advancing Translational Medicine in Bone & Joint Diseases, School of Chinese Medicine, Hong Kong Baptist University, Hong Kong 999077, China.
- Research Group of Precision Medicine and Innovative Drug, HKBU (Hong Kong Baptist University) (Haimen) Institute of Science and Technology, Haimen 226100, China.
| | - Ge Zhang
- Institution for Advancing Translational Medicine in Bone & Joint Diseases, School of Chinese Medicine, Hong Kong Baptist University, Hong Kong 999077, China.
- Research Group of Precision Medicine and Innovative Drug, HKBU (Hong Kong Baptist University) (Haimen) Institute of Science and Technology, Haimen 226100, China.
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Cationic polyaspartamide-based nanocomplexes mediate siRNA entry and down-regulation of the pro-inflammatory mediator high mobility group box 1 in airway epithelial cells. Int J Pharm 2015; 491:359-66. [PMID: 26140987 DOI: 10.1016/j.ijpharm.2015.06.017] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2015] [Revised: 06/12/2015] [Accepted: 06/14/2015] [Indexed: 02/07/2023]
Abstract
High-mobility group box 1 (HMGB1) is a nonhistone protein secreted by airway epithelial cells in hyperinflammatory diseases such as asthma. In order to down-regulate HMGB1 expression in airway epithelial cells, siRNA directed against HMGB1 was delivered through nanocomplexes based on a cationic copolymer of poly(N-2-hydroxyethyl)-d,l-aspartamide (PHEA) by using H441 cells. Two copolymers were used in these experiments bearing respectively spermine side chains (PHEA-Spm) and both spermine and PEG2000 chains (PHEA-PEG-Spm). PHEA-Spm and PHEA-PEG-Spm derivatives complexed dsDNA oligonucleotides with a w/w ratio of 1 and higher as shown by a gel retardation assay. PHEA-Spm and PHEA-PEG-Spm siRNA polyplexes were sized 350-650 nm and 100-400 nm respectively and ranged from negativity/neutrality (at 0.5 ratio) to positivity (at 5 ratio) as ζ potential. Polyplexes formed either at a ratio of 0.5 (partially complexing) or at the ratio of 5 (fully complexing) were tested in subsequent experiments. Epifluorescence revealed that nanocomplexes favored siRNA entry into H441 cells in comparison with naked siRNA. As determined by flow cytometry and a trypan blue assay, PHEA-Spm and PHEA-PEG-Spm allowed siRNA uptake in 42-47% and 30% of cells respectively, however only with PHEA-Spm at w/w ratio of 5 these percentages were significantly higher than those obtained with naked siRNA (20%). Naked siRNA or complexed scrambled siRNA did not exert any effect on HMGB1mRNA levels, whereas PHEA-Spm/siRNA at the w/w ratio of 5 down-regulated HMGB1 mRNA up to 58% of control levels (untransfected cells). PEGylated PHEA-Spm/siRNA nanocomplexes were able to down-regulate HMGB1 mRNA levels up to 61% of control cells. MTT assay revealed excellent biocompatibility of copolymer/siRNA polyplexes with cells. In conclusion, we have found optimal conditions for down-regulation of HMGB1 by siRNA delivery mediated by polyaminoacidic polymers in airway epithelial cells in the absence of cytotoxicity. Functional and in-vivo studies are warranted.
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Huo M, Zhu Q, Wu Q, Yin T, Wang L, Yin L, Zhou J. Somatostatin Receptor–Mediated Specific Delivery of Paclitaxel Prodrugs for Efficient Cancer Therapy. J Pharm Sci 2015; 104:2018-2028. [DOI: 10.1002/jps.24438] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2015] [Revised: 03/01/2015] [Accepted: 03/05/2015] [Indexed: 12/31/2022]
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15
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Zhao S, Wang D, Zhang K, Zhang H. Simple Fabrication of Glutathione-Responsive PEGylated Micellar Nanocarriers for Dual Drugs Delivery. INT J POLYM MATER PO 2015. [DOI: 10.1080/00914037.2015.1030649] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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16
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A micelle-like structure of poloxamer-methotrexate conjugates as nanocarrier for methotrexate delivery. Int J Pharm 2015; 487:177-86. [PMID: 25865570 DOI: 10.1016/j.ijpharm.2015.04.014] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2014] [Revised: 03/25/2015] [Accepted: 04/08/2015] [Indexed: 11/20/2022]
Abstract
The purpose of this study was to develop a novel featured and flexible methotrexate (MTX) formulation, in which MTX was physically entrapped and chemically conjugated in the same drug delivery system. A series of poloxamer-MTX (p-MTX) conjugates was synthesized, wherein MTX was grafted to poloxamer through an ester bond. p-MTX conjugates could self-assemble into micelle-like structures in aqueous environment and the MTX end was in the inner-core of micelles. Moreover, free MTX could be physically entrapped into p-MTX micelles hydrophobic core region to increase the total drug loading. Importantly, the resulting MTX-loaded p-MTX micelles showed a biphasic release of MTX, with a relative fast release of the entrapped MTX (about 6-7h) followed by a sustained release of the conjugated MTX. The pharmacokinetics study showed that the mean residence time (MRT) was extended in the case of MTX-loaded p-MTX micelles, indicating a delayed MTX elimination from the bloodstream and prolonged in vivo residence time. Besides, the area under curve (AUC) of MTX-loaded p-MTX micelles was greater than free MTX, indicating a drug bioavailability improvement. Overall, MTX-loaded p-MTX micelles might be a promising nanosized drug delivery system for the cancer therapy.
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17
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Xu H, Fan M, Elhissi AMA, Zhang Z, Wan KW, Ahmed W, Phoenix DA, Sun X. PEGylated graphene oxide for tumor-targeted delivery of paclitaxel. Nanomedicine (Lond) 2015; 10:1247-62. [PMID: 25955123 DOI: 10.2217/nnm.14.233] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
Aim: The graphene oxide (GO) sheet has been considered one of the most promising carbon derivatives in the field of material science for the past few years and has shown excellent tumor-targeting ability, biocompatibility and low toxicity. We have endeavored to conjugate paclitaxel (PTX) to GO molecule and investigate its anticancer efficacy. Materials & Methods: We conjugated the anticancer drug PTX to aminated PEG chains on GO sheets through covalent bonds to get GO-PEG-PTX complexes. The tissue distribution and anticancer efficacy of GO-PEG-PTX were then investigated using a B16 melanoma cancer-bearing C57 mice model. Results: The GO-PEG-PTX complexes exhibited excellent water solubility and biocompatibility. Compared with the traditional formulation of PTX (Taxol®), GO-PEG-PTX has shown prolonged blood circulation time as well as high tumor-targeting and -suppressing efficacy. Conclusion: PEGylated graphene oxide is an excellent nanocarrier for paclitaxel for cancer targeting.
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Affiliation(s)
- Hongyang Xu
- Key Laboratory of Drug Targeting & Drug Delivery Systems, Ministry of Education, West China School of Pharmacy, Sichuan University, Chengdu 610041, PR China
| | - Minmin Fan
- Key Laboratory of Drug Targeting & Drug Delivery Systems, Ministry of Education, West China School of Pharmacy, Sichuan University, Chengdu 610041, PR China
| | | | - Zhirong Zhang
- Key Laboratory of Drug Targeting & Drug Delivery Systems, Ministry of Education, West China School of Pharmacy, Sichuan University, Chengdu 610041, PR China
| | - Ka-Wai Wan
- Institute of Nanotechnology & Bioengineering, School of Pharmacy & Biomedical Sciences, University of Central Lancashire, Preston, UK
| | - Waqar Ahmed
- Institute of Nanotechnology & Bioengineering, School of Pharmacy & Biomedical Sciences, University of Central Lancashire, Preston, UK
| | - David A Phoenix
- Office of the Vice Chancellor, London South Bank University, 103 Borough Road, London, SE1 0AA, UK
| | - Xun Sun
- Key Laboratory of Drug Targeting & Drug Delivery Systems, Ministry of Education, West China School of Pharmacy, Sichuan University, Chengdu 610041, PR China
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Sousa-Herves A, Würfel P, Wegner N, Khandare J, Licha K, Haag R, Welker P, Calderón M. Dendritic polyglycerol sulfate as a novel platform for paclitaxel delivery: pitfalls of ester linkage. NANOSCALE 2015; 7:3923-32. [PMID: 25516353 DOI: 10.1039/c4nr04428b] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
In this study, dendritic polyglycerol sulfate (dPGS) is evaluated as a delivery platform for the anticancer, tubulin-binding drug paclitaxel (PTX). The conjugation of PTX to dPGS is conducted via a labile ester linkage. A non-sulfated dendritic polyglycerol (dPG) is used as a control, and the labeling with an indocarbocyanine dye (ICC) renders multifunctional conjugates that can be monitored by fluorescence microscopy. The conjugates are characterized by (1)H NMR, UV-vis measurements, and RP-HPLC. In vitro cytotoxicity of PTX and dendritic conjugates is evaluated using A549 and A431 cell lines, showing a reduced cytotoxic efficacy of the conjugates compared to PTX. The study of uptake kinetics reveals a linear, non saturable uptake in tumor cells for dPGS-PTX-ICC, while dPG-PTX-ICC is hardly taken up. Despite the marginal uptake of dPG-PTX-ICC, it prompts tubulin polymerization to a comparable extent as PTX. These observations suggest a fast ester hydrolysis and premature drug release, as confirmed by HPLC measurements in the presence of plasma enzymes.
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Affiliation(s)
- Ana Sousa-Herves
- Institut für Chemie und Biochemie, Freie Universität Berlin, Takustrasse 3, 14195 Berlin, Germany.
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19
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Development of stabilized Paclitaxel nanocrystals: In-vitro and in-vivo efficacy studies. Eur J Pharm Sci 2015; 69:51-60. [DOI: 10.1016/j.ejps.2014.11.012] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2014] [Revised: 09/25/2014] [Accepted: 11/09/2014] [Indexed: 11/21/2022]
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Shi S, Han L, Deng L, Zhang Y, Shen H, Gong T, Zhang Z, Sun X. Dual drugs (microRNA-34a and paclitaxel)-loaded functional solid lipid nanoparticles for synergistic cancer cell suppression. J Control Release 2014; 194:228-37. [DOI: 10.1016/j.jconrel.2014.09.005] [Citation(s) in RCA: 109] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2014] [Revised: 08/25/2014] [Accepted: 09/04/2014] [Indexed: 12/20/2022]
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21
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Di Meo C, Cilurzo F, Licciardi M, Scialabba C, Sabia R, Paolino D, Capitani D, Fresta M, Giammona G, Villani C, Matricardi P. Polyaspartamide-doxorubicin conjugate as potential prodrug for anticancer therapy. Pharm Res 2014; 32:1557-69. [PMID: 25366547 DOI: 10.1007/s11095-014-1557-2] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2014] [Accepted: 10/21/2014] [Indexed: 01/05/2023]
Abstract
PURPOSE To synthesize a new polymeric prodrug based on α,β-poly(N-2-hydroxyethyl)(2-aminoethylcarbamate)-d,l-aspartamide copolymer bearing amine groups in the side chain (PHEA-EDA), covalently linked to the anticancer drug doxorubicin and to test its potential application in anticancer therapy. METHODS The drug was previously derivatized with a biocompatible and hydrophilic linker, leading to a doxorubicin derivative highly reactive with amino groups of PHEA-EDA. The PHEA-EDA-DOXO prodrug was characterized in terms of chemical stability. The pharmacokinetics, biodistribution and cytotoxicity of the product was investigated in vitro and in vivo on human breast cancer MCF-7 and T47D cell lines and NOD-SCID mice bearing a MCF-7 human breast carcinoma xenograft. Data collected were compared to those obtained using free doxorubicin. RESULTS The final polymeric product is water soluble and easily hydrolysable in vivo, due to the presence of ester and amide bonds along the spacer between the drug and the polymeric backbone. In vitro tests showed a retarded cytotoxic effect on tumor cells, whereas a significant improvement of the in vivo antitumor activity of PHEA-EDA-DOXO and a survival advantage of the treated NOD-SCID mice was evidenced, compared to that of free doxorubicin. CONCLUSIONS The features of the PHEA-EDA-DOXO provide a potential protection of the drug from the plasmatic enzymatic degradation and clearance, an improvement of the blood pharmacokinetic parameters and a suitable body biodistribution. The data collected support the promising rationale of the proposed macromolecular prodrug PHEA-EDA-DOXO for further potential development and application in the treatment of solid cancer diseases.
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Affiliation(s)
- Chiara Di Meo
- Department of Drug Chemistry and Technologies, "Sapienza" University of Rome, P.le Aldo Moro 5, 00185, Rome, Italy
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Namgung R, Mi Lee Y, Kim J, Jang Y, Lee BH, Kim IS, Sokkar P, Rhee YM, Hoffman AS, Kim WJ. Poly-cyclodextrin and poly-paclitaxel nano-assembly for anticancer therapy. Nat Commun 2014; 5:3702. [DOI: 10.1038/ncomms4702] [Citation(s) in RCA: 157] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2013] [Accepted: 03/21/2014] [Indexed: 01/06/2023] Open
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Stern ST, Zou P, Skoczen S, Xie S, Liboiron B, Harasym T, Tardi P, Mayer LD, McNeil SE. Prediction of nanoparticle prodrug metabolism by pharmacokinetic modeling of biliary excretion. J Control Release 2013; 172:558-67. [PMID: 23664969 PMCID: PMC3788091 DOI: 10.1016/j.jconrel.2013.04.025] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2013] [Revised: 04/26/2013] [Accepted: 04/29/2013] [Indexed: 11/24/2022]
Abstract
Pharmacokinetic modeling and simulation is a powerful tool for the prediction of drug concentrations in the absence of analytical techniques that allow for direct quantification. The present study applied this modeling approach to determine active drug release from a nanoparticle prodrug formulation. A comparative pharmacokinetic study of a nanoscale micellar docetaxel (DTX) prodrug, Procet 8, and commercial DTX formulation, Taxotere, was conducted in bile duct cannulated rats. The nanoscale (~40nm) size of the Procet 8 formulation resulted in confinement within the plasma space and high prodrug plasma concentrations. Ex vivo prodrug hydrolysis during plasma sample preparation resulted in unacceptable error that precluded direct measurement of DTX concentrations. Pharmacokinetic modeling of Taxotere and Procet 8 plasma concentrations, and their associated biliary metabolites, allowed for prediction of the DTX concentration profile and DTX bioavailability, and thereby evaluation of Procet 8 metabolism. Procet 8 plasma decay and in vitro plasma hydrolytic rates were identical, suggesting that systemic clearance of the prodrug was primarily metabolic. The Procet 8 and Taxotere plasma profiles, and associated docetaxel hydroxy-tert-butyl carbamate (HDTX) metabolite biliary excretion, were best fit by a two compartment model, with both linear and non-linear DTX clearance, and first order Procet 8 hydrolysis. The model estimated HDTX clearance rate agreed with in vitro literature values, supporting the predictability of the proposed model. Model simulation at the 10mg DTX equivalent/kg dose level predicted DTX formation rate-limited kinetics and a peak plasma DTX concentration of 39ng/mL at 4h for Procet 8, in comparison to 2826ng/mL for Taxotere. As a result of nonlinear DTX clearance, the DTX AUCinf for the Procet 8 formulation was predicted to be 2.6 times lower than Taxotere (775 vs. 2017h×ng/mL, respectively), resulting in an absolute bioavailability estimate of 38%. As DTX clearance in man is considered linear, this low bioavailability is likely species-dependent. These data support the use of pharmacokinetic modeling and simulation in cases of complex formulations, where analytical methods for direct measurement of free (released) drug concentrations are unavailable. Uses of such models may include interpretation of preclinical toxicology studies, selection of first in man dosing regimens, and PK/PD model development.
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Affiliation(s)
- Stephan T Stern
- Nanotechnology Characterization Laboratory, Advanced Technology Program, SAIC-Frederick Inc., Frederick National Lab for Cancer Research, Frederick, 21702, USA.
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Lai CH, Chang TC, Chuang YJ, Tzou DL, Lin CC. Stepwise orthogonal click chemistry toward fabrication of paclitaxel/galactose functionalized fluorescent nanoparticles for HepG2 cell targeting and delivery. Bioconjug Chem 2013; 24:1698-709. [PMID: 23987828 DOI: 10.1021/bc400219t] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
In this report, we used stepwise orthogonal click chemistry (SOCC) involving strain-promoted azide-alkyne cycloaddition (SPAAC) and microwave-assisted Cu(I)-catalyzed azide-alkyne cycloaddition (CuAAC) to assemble an anticancer drug (paclitaxel, PTX) and a targeting ligand (trivalent galactoside, TGal) on a fluorescent silicon oxide nanoparticle (NP) by using dialkyne linker 8 as a bridge. The fluorescent NH2@Cy3SiO2NP was fabricated using a competition method to incorporate Cy3 without loss of the original surface amine density on the NPs. The concept of SOCC was first investigated in a solution-phase model study that showed quantitative reaction yield. In the fabrication of TGal-PTX@Cy3SiO2NP, the expensive compound azido-functionalized PTX 12 used in SPAAC can be easily recovered due to the absence of other reagents in the reaction mixture. High loading of the sugar ligand on the NP surface serves a targeting function and also overcomes the low water solubility of PTX. Confocal fluorescence microscopy and cytotoxicity assay showed that TGal-PTX@Cy3SiO2NP was taken up by HepG2 cells and was affected by the microtubule skeleton in these cells and inhibited the proliferation of these cells in a dose-dependent manner. The presence of a fluorescent probe, a targeting ligand, and an anticancer drug on the multifunctional TGal-PTX@Cy3SiO2NP allows for real-time imaging, specific cancer-cell targeting, and the cell-killing effect which is better than free PTX.
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Affiliation(s)
- Chian-Hui Lai
- Department of Chemistry and ‡Department of Medical Science and Institute of Bioinformatics and Structural Biology, National Tsing Hua University , 101 Sec. 2, Kuang Fu Road, Hsinchu 300, Taiwan
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Bannazadeh Amirkhiz M, Rashtchizadeh N, Nazemieh H, Abdolalizadeh J, Mohammadnejad L, Baradaran B. Cytotoxic effects of alcoholic extract of dorema glabrum seed on cancerous cells viability. Adv Pharm Bull 2013; 3:403-8. [PMID: 24312867 DOI: 10.5681/apb.2013.064] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2013] [Revised: 04/17/2013] [Accepted: 04/22/2013] [Indexed: 01/05/2023] Open
Abstract
PURPOSE In the present study cytotoxic effects of the alcoholic extract of Dorema Glabrum seed on viability of WEHI-164 cells, mouse Fibrosarcoma cell line and L929 normal cells were compared with the cytotoxic effects of Taxol (anticancer and apoptosis inducer drug). METHODS To find out the plant extract cytotoxic effects, MTT test and DNA fragmentation assay, the biochemical hallmark of apoptosis were performed on cultured and treated cells. RESULTS According to the findings the alcoholic extract of Dorema Glabrum seed can alter cells morphology and because of chromatin condensation and other changes they shrink and take a spherical shape, and lose their attachment too. So the plant extract inhibits cell growth albeit in a time and dose dependent manner and results in degradation of chromosomal DNA. CONCLUSION Our data well established the anti-proliferative effect of methanolic extract of Dorema Glabrum seed and clearly showed that the plant extract can induce apoptosis and not necrosis in vitro, but the mechanism of its activities remained unknown. These results demonstrated that Dorema Glabrum seed might be a novel and attractive therapeutic candidate for tumor treatment in clinical practices.
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Affiliation(s)
- Maryam Bannazadeh Amirkhiz
- Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, Iran. ; student of Tabriz International University of Medical Sciences (Aras), Tabriz University of Medical Sciences, Tabriz, Iran
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Sobhani Z, Dinarvand R, Atyabi F, Ghahremani M, Adeli M. Increased paclitaxel cytotoxicity against cancer cell lines using a novel functionalized carbon nanotube. Int J Nanomedicine 2011; 6:705-19. [PMID: 21556345 PMCID: PMC3084317 DOI: 10.2147/ijn.s17336] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2011] [Indexed: 01/25/2023] Open
Abstract
Potential applications of carbon nanotubes have attracted many researchers in the field of drug delivery systems. In this study, multiwalled carbon nanotubes (MWNTs) were first functionalized using hyperbranched poly citric acid (PCA) to improve their hydrophilicity and functionality. Then, paclitaxel (PTX), a potent anticancer agent, was conjugated to the carboxyl functional groups of poly citric acid via a cleavable ester bond to obtain a MWNT-g-PCA-PTX conjugate. Drug content of the conjugate was about 38% (w/w). The particle size of MWNT-g-PCA and MWNT-g-PCA-PTX was approximately 125 and 200 nm, respectively. Atomic force microscopy and transmission electron microscopy images showed a curved shape for MWNT-g-PCA and MWNT-g-PCA-PTX, which was in contrast with the straight or linear conformation expected from carbon nanotubes. It seems that the high hydrophilicity of poly citric acid and high hydrophobicity of MWNTs led to conformational changes from a linear state to a curved state. Paclitaxel can be released from the MWNT-g-PCA-PTX conjugates faster at pH 6.8 and 5.0 than at pH 7.4, which was suitable for the release of the drug in tumor tissues and tumor cells. In vitro cytotoxicity studies were evaluated in the A549 and SKOV3 cell lines. MWNT-g-PCA had an insignificant cytotoxic effect on both cell lines. MWNT-g-PCA-PTX had more of a cytotoxic effect than the free drug over a shorter incubation time (eg, 24 hours versus 48 hours), which suggests improved cell penetration of MWNT-g-PCA-PTX. Therefore, paclitaxel conjugated to MWNT-g-PCA is promising for cancer therapeutics.
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Affiliation(s)
- Z Sobhani
- Department of Pharmaceutics, Tehran University of Medical Sciences, Tehran, Iran
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Nayak A, Jain A. In Vitro and In Vivo Study of Poly(ethylene glycol) Conjugated Ibuprofen to Extend the Duration of Action. Sci Pharm 2011; 79:359-73. [PMID: 21773072 PMCID: PMC3134853 DOI: 10.3797/scipharm.0911-07] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2009] [Accepted: 03/04/2011] [Indexed: 11/22/2022] Open
Abstract
Ibuprofen-polyethylene glycol (PEG) conjugates (PEG-Ibu) were prepared and their potential as a prolonged release system was investigated. Two PEG-Ibu conjugates were synthesized from Ibuprofen and PEG with two different molecular weights by esterification in the presence of DCC and DMAP. The PEG-Ibu conjugates were characterized by FT-IR, (1)H NMR, Mass spectroscopy and DSC analysis. The solubility study in aqueous system showed an increase in solubility of conjugates. The dissolution / hydrolysis studies showed a specific acid-base catalysis pattern dependent on the pH of the medium. This indicated a good chemical stability in aqueous buffer solution of acidic medium and the extended release behavior was found in both prodrugs after 9 hour. The results demonstrate that, in the same condition, the rate of hydrolysis for PEG(4000)-Ibu is slower than other. The Writhing induced by acetic acid experiment and paw edema test after oral administration showed that both conjugates had extended analgesic and anti-inflammatory effects compared with Ibuprofen. These results suggest that PEG-Ibu could be a promising NSAID prodrug with an extended pharmacological effect owing to delayed-release of parent drug.
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Affiliation(s)
- Anjali Nayak
- B. R. Nahata College of Pharmacy, Mandsaur 458001, India
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Dosio F, Stella B, Arpicco S, Cattel L. Macromolecules as taxane delivery systems. Expert Opin Drug Deliv 2010; 8:33-55. [DOI: 10.1517/17425247.2011.541437] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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Antitumor activity and toxicological properties of doxorubicin conjugated to α,β-poly[(2-hydroxyethyl)-L-aspartamide] administered intraperitoneally in mice. Anticancer Drugs 2010; 21:362-71. [DOI: 10.1097/cad.0b013e3283355227] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Xu X, Zhang X, Wang X, Li Y, Jing X. Comparative study of paclitaxel physically encapsulated in and chemically conjugated with PEG-PLA. POLYM ADVAN TECHNOL 2009. [DOI: 10.1002/pat.1341] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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QI XH, CHEN XM, FENG ZQ, GUAN XH, WU J, CHEN Q, KAN YJ, TONG H. Preparation, Characterization and Preliminary Trichomonacidal Effect of Poly Aspartic Acid-metronidazole Nanoprodrug*. PROG BIOCHEM BIOPHYS 2009. [DOI: 10.3724/sp.j.1206.2008.00863] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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34
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Synergistic anti-tumor activity of paclitaxel-incorporated conjugated linoleic acid-coupled poloxamer thermosensitive hydrogel in vitro and in vivo. Biomaterials 2009; 30:4777-85. [DOI: 10.1016/j.biomaterials.2009.05.051] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2009] [Accepted: 05/17/2009] [Indexed: 12/17/2022]
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35
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Esmaeili F, Dinarvand R, Ghahremani MH, Amini M, Rouhani H, Sepehri N, Ostad SN, Atyabi F. Docetaxel–Albumin Conjugates: Preparation, In Vitro Evaluation and Biodistribution Studies. J Pharm Sci 2009; 98:2718-30. [DOI: 10.1002/jps.21599] [Citation(s) in RCA: 80] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Huynh L, Leroux JC, Allen C. Enhancement of docetaxel solubility via conjugation of formulation-compatible moieties. Org Biomol Chem 2009; 7:3437-46. [PMID: 19675898 DOI: 10.1039/b906862g] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Computer-based theoretical calculations were employed to direct the design of docetaxel conjugates with enhanced solubility in the internal phase of a nano-emulsion formulation. The theoretically-identified optimal docetaxel conjugates were synthesized by direct attachment of lauroyl moieties through an ester linkage to docetaxel. In comparison to docetaxel, the conjugates exhibited significantly improved solubility in oil, as predicted by our theoretical calculations. This contributed to high drug entrapment efficiencies (up to 97%) and a high drug loading capacity (5.7% w/w) for the docetaxel conjugates. The mono-substitution of an acyl group at C-2' of docetaxel resulted in a conjugate with 37- to 46-fold lower cytotoxicity than that of the parent drug in two human cancer cell lines. Importantly, the activity exerted by the mono-substituted docetaxel on the cancer cells was due in part to the cytotoxicity of the parent drug that was released via hydrolysis of the ester bond between the lauroyl moiety and the drug under biologically relevant conditions. In contrast, di- and tri-substitution of acyl groups at C-2', C-7 and/or C-10 of docetaxel resulted in non-hydrolysable conjugates that were found to be inactive. Overall, our results show that computer-based theoretical calculation is a promising strategy for guiding the enhancement of material-drug compatibility in formulation development. Also, these studies confirm that chemical modification of docetaxel for enhancement of material-drug compatibility should be limited to mono-substitution at C-2' and result in a prodrug that is hydrolysable at a moderate rate under biologically relevant conditions.
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Affiliation(s)
- Loan Huynh
- Leslie Dan Faculty of Pharmacy, University of Toronto, 144 College Street, Toronto, Ontario, M5S 3M2, Canada
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37
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Chun C, Lee SM, Kim SY, Yang HK, Song SC. Thermosensitive poly(organophosphazene)–paclitaxel conjugate gels for antitumor applications. Biomaterials 2009; 30:2349-60. [DOI: 10.1016/j.biomaterials.2008.12.083] [Citation(s) in RCA: 97] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2008] [Accepted: 12/29/2008] [Indexed: 10/21/2022]
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Paclitaxel–octreotide conjugates in tumor growth inhibition of A549 human non-small cell lung cancer xenografted into nude mice. Eur J Pharmacol 2008; 601:23-9. [DOI: 10.1016/j.ejphar.2008.10.035] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2008] [Revised: 10/01/2008] [Accepted: 10/13/2008] [Indexed: 11/23/2022]
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39
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Pitarresi G, Piccionello AP, Calabrese R, Pace A, Buscemi S, Giammona G. Fluorinated derivatives of a polyaspartamide bearing polyethylene glycol chains as oxygen carriers. J Fluor Chem 2008. [DOI: 10.1016/j.jfluchem.2008.07.024] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Guo K, Chu CC. Biodegradable and injectable paclitaxel‐loaded poly(ester amide)s microspheres: Fabrication and characterization. J Biomed Mater Res B Appl Biomater 2008; 89:491-500. [DOI: 10.1002/jbm.b.31239] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Kai Guo
- Fiber and Polymer Science Program, Department of Fiber Science and Apparel Design, and Biomedical Engineering Program, Cornell University, Ithaca, New York 14853‐4401
| | - C. C. Chu
- Fiber and Polymer Science Program, Department of Fiber Science and Apparel Design, and Biomedical Engineering Program, Cornell University, Ithaca, New York 14853‐4401
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Cavallaro G, Scirè S, Licciardi M, Ogris M, Wagner E, Giammona G. Polyhydroxyethylaspartamide-spermine copolymers: Efficient vectors for gene delivery. J Control Release 2008; 131:54-63. [DOI: 10.1016/j.jconrel.2008.07.001] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2008] [Revised: 06/24/2008] [Accepted: 07/03/2008] [Indexed: 11/26/2022]
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42
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Zhang J, Liu YF, Lan B, Fan XD. Synthesis of dextran-metaxalone conjugates and study on their control drug release behaviors. J Appl Polym Sci 2008. [DOI: 10.1002/app.27379] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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43
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Guo K, Chu CC. Controlled release of paclitaxel from biodegradable unsaturated poly(ester amide)s/poly(ethylene glycol) diacrylate hydrogels. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2007; 18:489-504. [PMID: 17550654 DOI: 10.1163/156856207780852569] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Biodegradable hydrogels (FPBe-G) were synthesized by the photopolymerization of two precursors: FPBe, a fumurate-based unsaturated poly(ester amide) (UPEA), and poly(ethylene glycol) diacrylate (PEG-DA). Depending on the feed ratio of these two precursors, the resultant FPBe-G hydrogels showed different crosslinking levels of network structure, mesh sizes (xi) and matrix morphology. When a lipophilic drug, paclitaxel, was preloaded into FPBe-G hydrogels, the two-month drug-release kinetics from FPBe-G hydrogels in both pure PBS buffer and alpha-chymotrypsin media were measured. The paclitaxel-preloaded FPBe-G hydrogels in a alpha-chymotrypsin solution had significantly faster drug release rate than the corresponding hydrogels in a pure PBS buffer due to an enzyme catalyzed biodegradation of FPBe-G hydrogels. Sustained paclitaxel releases over a two-month period without initial burst release were also achieved by using hydrogels having certain feed ratios of hydrogel precursors. These paclitaxel release data correlated well with the molecular mesh size (xi), molecular weight between cross-links (M(c)) and matrix morphological structure of FPBe-G hydrogels.
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Affiliation(s)
- Kai Guo
- Fiber and Polymer Science Program, Department of Textile & Apparel Design, and Biomedical Engineering Program, Cornell University, Ithaca, NY 14853-4401, USA
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Choi HK, Chun MK, Lee SH, Jang MH, Kim HD, Jung CS, Oh SY. In vitro and in vivo study of poly(ethylene glycol) conjugated ketoprofen to extend the duration of action. Int J Pharm 2007; 341:50-7. [PMID: 17517483 DOI: 10.1016/j.ijpharm.2007.03.045] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2006] [Revised: 02/15/2007] [Accepted: 03/29/2007] [Indexed: 11/22/2022]
Abstract
Ketoprofen-polyethylene glycol (PEG) conjugates (KPEG) were prepared and their potential as a prolonged release system was investigated. Three KPEG conjugates were synthesized from ketoprofen and methoxy PEG with three different molecular weights by esterification in the presence of DCC. The KPEG conjugates were characterized by FT-IR and (1)H NMR spectroscopy. The rate of hydrolysis profile showed a specific acid-base catalysis pattern with a minimum at pH 4-5. The pharmacokinetic study after the intravenous and intramuscular administration of KPEG750 showed that the plasma levels of KP increased slowly and reached a maximum concentration at later time. The AUC of KPEG750 was higher than that after administering an equivalent dose of ketoprofen except 40mg/kg dose of intramuscular administration. The tail-flick experiment and paw edema test after intramuscular administration showed that KPEG750 had extended analgesic and anti-inflammatory effects compared with ketoprofen. These results suggest that KPEG could be a promising NSAID prodrug with an extended pharmacological effect owing to delayed-release of parent drug.
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MESH Headings
- Animals
- Anti-Inflammatory Agents, Non-Steroidal/administration & dosage
- Anti-Inflammatory Agents, Non-Steroidal/blood
- Anti-Inflammatory Agents, Non-Steroidal/chemical synthesis
- Anti-Inflammatory Agents, Non-Steroidal/pharmacokinetics
- Carrageenan
- Chemistry, Pharmaceutical
- Delayed-Action Preparations
- Dicyclohexylcarbodiimide/chemistry
- Disease Models, Animal
- Dose-Response Relationship, Drug
- Drug Carriers
- Drug Compounding
- Hydrogen-Ion Concentration
- Hydrolysis
- Inflammation/chemically induced
- Inflammation/prevention & control
- Injections, Intramuscular
- Injections, Intravenous
- Ketoprofen/administration & dosage
- Ketoprofen/analogs & derivatives
- Ketoprofen/blood
- Ketoprofen/chemical synthesis
- Ketoprofen/pharmacokinetics
- Magnetic Resonance Spectroscopy
- Male
- Molecular Weight
- Pain Measurement
- Pain Threshold/drug effects
- Polyethylene Glycols/chemistry
- Prodrugs/administration & dosage
- Prodrugs/chemical synthesis
- Prodrugs/pharmacokinetics
- Rats
- Rats, Sprague-Dawley
- Solubility
- Spectroscopy, Fourier Transform Infrared
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Affiliation(s)
- Hoo-Kyun Choi
- BK21 Project Team, School of Pharmacy, Chosun University, 375 Seosuk-dong, Dong-gu, Gwangju 501-759, Republic of Korea
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45
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Grinberg O, Hayun M, Sredni B, Gedanken A. Characterization and activity of sonochemically-prepared BSA microspheres containing Taxol--an anticancer drug. ULTRASONICS SONOCHEMISTRY 2007; 14:661-666. [PMID: 17208504 DOI: 10.1016/j.ultsonch.2006.11.004] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2006] [Revised: 11/07/2006] [Accepted: 11/11/2006] [Indexed: 05/13/2023]
Abstract
Proteinaceous microspheres of BSA (Bovine Serum Albumin) containing an anticancer drug, Taxol (paclitaxel) were fabricated using a sonochemical procedure and then assayed for chemical and biological activity. The sonochemical reaction did not compromise the drug, which became encapsulated in the BSA microspheres. The amount of the anticancer drug in the microspheres was determined by HPLC. Anticancer activity of the proteinaceous microspheres encapsulating the Taxol was tested on Mouse Multiple Myeloma cell line MPC-11. The influence of the Taxol microspheres on the cancer cells was different from pristine Taxol. It was found that Taxol in combination with the organic solvent causes the death of cancer cells.
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Affiliation(s)
- Olga Grinberg
- Department of Chemistry and Kanbar Laboratory for Nanomaterials at the Bar-Ilan University, Center for Advanced Materials and Nanotechnology, Bar-Ilan University, Ramat-Gan, 52900, Israel
| | - Michal Hayun
- The Mina and Everard Goodman Faculty of Life Sciences, Bar-Ilan University, Ramat-Gan 52900, Israel
| | - Benjamin Sredni
- The Mina and Everard Goodman Faculty of Life Sciences, Bar-Ilan University, Ramat-Gan 52900, Israel
| | - Aharon Gedanken
- Department of Chemistry and Kanbar Laboratory for Nanomaterials at the Bar-Ilan University, Center for Advanced Materials and Nanotechnology, Bar-Ilan University, Ramat-Gan, 52900, Israel.
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46
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Mandracchia D, Piccionello AP, Pitarresi G, Pace A, Buscemi S, Giammona G. Fluoropolymer Based on a Polyaspartamide containing 1,2,4-Oxadiazole Units: A Potential Artificial Oxygen (O2) Carrier. Macromol Biosci 2007; 7:836-45. [PMID: 17541930 DOI: 10.1002/mabi.200600266] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
In this preliminary work we have prepared a fluorinated polymer capable of solubilizing an appreciable amount of O(2) and, at the same time, maintaining a higher water solubility than perfluoroalkanes investigated as injectable O(2) carriers. In particular, we describe the synthesis and characterization of a new macromolecular conjugate obtained by derivatization of alpha,beta-poly(N-2-hydroxyethyl)-DL-aspartamide (PHEA) with 5-pentafluorophenyl-3-perfluoroheptyl-1,2,4-oxadiazole, called PHEA-F. This new water soluble fluoropolymer was prepared in high yield using a simple procedure. It was characterized by FT-IR and UV-vis spectrophotometry, (19)F-NMR and SEC measurements. O(2) solubility studies on PHEA-F aqueous solutions were carried out at 25 degrees C and 37 degrees C at atmospheric pressure and showed that PHEA-F conjugate, despite its low degree of derivatization in fluorine containing groups (2.60 mol-%), is capable of dissolving 13-15% more O(2) than non-fluorinated PHEA. Moreover, O(2) release in simulated physiological conditions is faster for PHEA-F than for PHEA. The biocompatibility of this conjugate has been evaluated by performing an in vitro viability assay on human chronic myelogenous leukaemia cells (K-562) chosen as a model cell line and in vitro haemolysis experiments on human RBCs. All these properties suggest the potential use of PHEA-F as an artificial O(2) carrier.
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Affiliation(s)
- Delia Mandracchia
- Dipartimento Farmaco-Chimico, Università di Bari, Via Orabona 4, I-70125 Bari, Italy
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47
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Skwarczynski M, Hayashi Y, Kiso Y. Paclitaxel Prodrugs: Toward Smarter Delivery of Anticancer Agents. J Med Chem 2006; 49:7253-69. [PMID: 17149855 DOI: 10.1021/jm0602155] [Citation(s) in RCA: 142] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Mariusz Skwarczynski
- Department of Medicinal Chemistry, Center for Frontier Research in Medicinal Science, 21st Century COE Program, Kyoto Pharmaceutical University, Yamashina-ku, Kyoto, 607-8412, Japan
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48
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Cavallaro G, Giammona G, Lombardo R, Sciascia L, Liveri MLT. Amphiphilic derivatives of a polyaspartamide: their aggregation and solubilization ability. Colloids Surf A Physicochem Eng Asp 2006. [DOI: 10.1016/j.colsurfa.2006.03.054] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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49
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Cavallaro G, Campisi M, Licciardi M, Ogris M, Giammona G. Reversibly stable thiopolyplexes for intracellular delivery of genes. J Control Release 2006; 115:322-34. [PMID: 17028038 DOI: 10.1016/j.jconrel.2006.07.027] [Citation(s) in RCA: 49] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2006] [Revised: 07/18/2006] [Accepted: 07/28/2006] [Indexed: 11/17/2022]
Abstract
Novel polyaspartamide non-viral carriers for gene therapy were synthesized by introducing, on the same polymer backbone, positively charged groups, for electrostatic interactions with DNA, and thiol groups for the formation of disulfide bridges between polymer chains. The introduction of thiols was aimed to have a vector with low redox potential sensitivity: disulfide crosslinking in fact, being stable in extracellular environment, allowed either to have stable complexes in plasma, that can protect DNA from metabolism, or to be reduced inside the cell, where the excess of glutathion in reduced form maintains a low redox potential. The consequent destabilization of the complex after disulfide cleavage can release DNA selectively inside the cells. Alpha,beta-poly(N-2-hydroxyethyl)-D,L-aspartamide (PHEA) was used as starting polymer being a highly water-soluble synthetic polymer, already proposed with success as therapeutic carrier by our group. In this study, PHEA was firstly functionalised with ethylendiamine, obtaining a well defined copolymer with pendant primary amine groups (PHEA-EDA), to which N-succinimidyl 3-(2-pyridyldithio) propionate (SPDP) and 3-(carboxypropyl)trimethyl-ammonium chloride (CPTA) were linked in two subsequent steps, allowing the introduction of thiol and cationic groups respectively. Finally DTT treatment lead to the final PHEA-EDA-SH-CPTA thiopolycation, named PESC. The present work describes the synthesis and characterization of the thiopolycation PESC. 1H NMR spectroscopy detected the derivatization molar degrees in SPDP and CPTA; the formation of DNA complexes (thiopolyplexes), their stability in the presence of polyanions and the ability to release DNA under reductive conditions were studied by agarose gel electrophoresis. DNase II degradation study was carried out to detect the ability of thiopolyplex to stabilize DNA towards enzymatic metabolism. Thiopolyplexes were then characterized by Dynamic Light Scattering (DLS) and Zeta Potential analysis. Finally, in vitro toxicity profile (MTT) and gene transfer efficiency (Luciferase assay) were carried out to evaluate thiopolyplex biocompatibility, safety and efficacy to be used as gene delivery system.
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Affiliation(s)
- Gennara Cavallaro
- Dipartimento di Chimica e Tecnologie Farmaceutiche, Università degli Studi di Palermo Via Archirafi 32, 90123, Palermo - Italy
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50
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Licciardi M, Campisi M, Cavallaro G, Carlisi B, Giammona G. Novel cationic polyaspartamide with covalently linked carboxypropyl-trimethyl ammonium chloride as a candidate vector for gene delivery. Eur Polym J 2006. [DOI: 10.1016/j.eurpolymj.2005.10.005] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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