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Patel V, Parekh P, Khimani M, Yusa SI, Bahadur P. Pluronics® based Penta Block Copolymer micelles as a precursor of smart aggregates for various applications: A review. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.121140] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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Utroša P, Onder OC, Žagar E, Kovačič S, Pahovnik D. Shape Memory Behavior of Emulsion-Templated Poly(ε-Caprolactone) Synthesized by Organocatalyzed Ring-Opening Polymerization. Macromolecules 2019. [DOI: 10.1021/acs.macromol.9b01780] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Petra Utroša
- Department of Polymer Chemistry and Technology, National Institute of Chemistry, Hajdrihova 19, 1000 Ljubljana, Slovenia
| | - Ozgun Can Onder
- Department of Polymer Chemistry and Technology, National Institute of Chemistry, Hajdrihova 19, 1000 Ljubljana, Slovenia
| | - Ema Žagar
- Department of Polymer Chemistry and Technology, National Institute of Chemistry, Hajdrihova 19, 1000 Ljubljana, Slovenia
| | - Sebastijan Kovačič
- Department of Polymer Chemistry and Technology, National Institute of Chemistry, Hajdrihova 19, 1000 Ljubljana, Slovenia
| | - David Pahovnik
- Department of Polymer Chemistry and Technology, National Institute of Chemistry, Hajdrihova 19, 1000 Ljubljana, Slovenia
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Macedo LB, Nogueira-Librelotto DR, de Vargas J, Scheeren LE, Vinardell MP, Rolim CMB. Poly (ɛ-Caprolactone) Nanoparticles with pH-Responsive Behavior Improved the In Vitro Antitumor Activity of Methotrexate. AAPS PharmSciTech 2019; 20:165. [PMID: 30993464 DOI: 10.1208/s12249-019-1372-5] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2019] [Accepted: 03/19/2019] [Indexed: 01/08/2023] Open
Abstract
A promising approach to achieve a more efficient antitumor therapy is the conjugation of the active molecule to a nanostructured delivery system. Therefore, the main objective of this research was to prepare nanoparticles (NPs), with the polymer poly (ε-caprolactone) (PCL), as a carrier for the antitumor drug methotrexate (MTX). A pH-responsive behavior was obtained through conjugation of the amino acid-based amphiphile, 77KL, to the NP matrix. The NPs showed mean hydrodynamic diameter and drug entrapment efficiency of 178.5 nm and 20.52%, respectively. Owing to its pH-sensitivity, the PCL-NPs showed membrane-lytic behavior upon reducing the pH value of surrounding media to 5.4, which is characteristic of the endosomal compartments. The in vitro antitumor assays demonstrated that MTX-loaded PCL-NPs have higher antiproliferative activity than free drug in MCF-7 cells and, to a lesser extent, in HepG2 cells. This same behavior was also achieved at mildly acidic conditions, characteristic of the tumor microenvironment. Altogether, the results evidenced the pH-responsive properties of the designed NPs, as well as the higher in vitro cytotoxicity compared to free MTX, representing thus a promising alternative for the antitumor therapy.
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Sharma D, Singh J. Synthesis and Characterization of Fatty Acid Grafted Chitosan Polymer and Their Nanomicelles for Nonviral Gene Delivery Applications. Bioconjug Chem 2017; 28:2772-2783. [PMID: 29040803 DOI: 10.1021/acs.bioconjchem.7b00505] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
The aim of this study was to synthesize and characterize fatty acid-grafted-chitosan (fatty acid-g-CS) polymer and their nanomicelles for use as carriers for gene delivery. CS was hydrophobically modified using saturated fatty acids of increasing fatty acyl chain length. Carbodiimide along with N-hydroxysuccinimide was used for coupling carboxyl group of fatty acids with amine groups of CS. Proton nuclear magnetic resonance and Fourier transform infrared spectroscopy were used to quantify fatty acyl substitution onto CS backbone. The molecular weight distribution of the synthesized polymers was determined using size exclusion high performance liquid chromatography and was found to be in range of the parent CS polymer (∼50 kDa). The critical micelle concentration (cmc) of the polymers was determined using pyrene as a fluorescent probe. The cmc was found to decrease with an increase in fatty acyl chain length. The amphiphilic fatty acid-g-CS polymers self-assembled in an aqueous environment to form nanomicelles of ∼200 nm particle size and slightly positive net charge due to the cationic nature of free primary amino groups on CS molecule. These polymeric nanomicelles exhibited excellent hemo- and cytocompatibility, as evaluated by in vitro hemolysis and MTT cell viability assay, respectively, and showed superior transfection efficiency compared to unmodified chitosan and naked DNA. The surface of these nanomicelles can be further modified with ligands allowing for selective targeting, enhanced cell binding, and internalization. These nanomicelles can thus be exploited as potential nonviral gene delivery vectors for safe and efficient gene therapy.
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Affiliation(s)
- Divya Sharma
- Department of Pharmaceutical Sciences, School of Pharmacy, College of Health Professions, North Dakota State University , Fargo, North Dakota 58105, United States
| | - Jagdish Singh
- Department of Pharmaceutical Sciences, School of Pharmacy, College of Health Professions, North Dakota State University , Fargo, North Dakota 58105, United States
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Xu S, Xia J, Ye S, Zhao M, Wang B, Yang L, Wu J, Fu S. Preparation and characterization of electrospun poly(ε-caprolactone)-pluronic-poly(ε-caprolactone)-based polyurethane nanofibers. J Appl Polym Sci 2016. [DOI: 10.1002/app.43643] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Shan Xu
- Department of Oncology; The First Affiliated Hospital of Sichuan Medical University, Sichuan Medical University; Luzhou 646000 People's Republic of China
| | - Jiyi Xia
- Department of Science and Technology; Sichuan Medical University; Luzhou 646000 People's Republic of China
| | - Sujuan Ye
- Department of Oncology; The First Affiliated Hospital of Sichuan Medical University, Sichuan Medical University; Luzhou 646000 People's Republic of China
| | - Ming Zhao
- Department of Oncology; The First Affiliated Hospital of Sichuan Medical University, Sichuan Medical University; Luzhou 646000 People's Republic of China
| | - Biqiong Wang
- Department of Oncology; The First Affiliated Hospital of Sichuan Medical University, Sichuan Medical University; Luzhou 646000 People's Republic of China
| | - Linglin Yang
- Department of Oncology; The First Affiliated Hospital of Sichuan Medical University, Sichuan Medical University; Luzhou 646000 People's Republic of China
| | - Jingbo Wu
- Department of Oncology; The First Affiliated Hospital of Sichuan Medical University, Sichuan Medical University; Luzhou 646000 People's Republic of China
| | - Shaozhi Fu
- Department of Oncology; The First Affiliated Hospital of Sichuan Medical University, Sichuan Medical University; Luzhou 646000 People's Republic of China
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Mondal D, Griffith M, Venkatraman SS. Polycaprolactone-based biomaterials for tissue engineering and drug delivery: Current scenario and challenges. INT J POLYM MATER PO 2016. [DOI: 10.1080/00914037.2015.1103241] [Citation(s) in RCA: 163] [Impact Index Per Article: 20.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Khan W, Challa VGS, Langer R, Domb AJ. Biodegradable Polymers for Focal Delivery Systems. ADVANCES IN DELIVERY SCIENCE AND TECHNOLOGY 2014. [DOI: 10.1007/978-1-4614-9434-8_1] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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Lo YL, Chen GJ, Feng TH, Li MH, Wang LF. Synthesis and characterization of S-PCL-PDMAEMA for co-delivery of pDNA and DOX. RSC Adv 2014. [DOI: 10.1039/c3ra46914j] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
Similar numbers of repeating units of PCL and pDMAEMA were controlled between L-PCL-PDMAEMA and S-PCL-PDMAEMA. DOX-loaded S-PCL-PDMAEMA micelles showed a better cell-killing effect than DOX-loaded L-PCL-PDMAEMA in four cell lines. The co-delivery of DOX and pDNA was confirmed by CLSM.
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Affiliation(s)
- Yu-Lun Lo
- Department of Medicinal & Applied Chemistry
- College of Life Science
- Kaohsiung Medical University
- Kaohsiung City 807, Taiwan
| | - Guo-Jing Chen
- Department of Medicinal & Applied Chemistry
- College of Life Science
- Kaohsiung Medical University
- Kaohsiung City 807, Taiwan
| | - Tzu-Hwa Feng
- Department of Medicinal & Applied Chemistry
- College of Life Science
- Kaohsiung Medical University
- Kaohsiung City 807, Taiwan
| | - Ming-Han Li
- Department of Medicinal & Applied Chemistry
- College of Life Science
- Kaohsiung Medical University
- Kaohsiung City 807, Taiwan
| | - Li-Fang Wang
- Department of Medicinal & Applied Chemistry
- College of Life Science
- Kaohsiung Medical University
- Kaohsiung City 807, Taiwan
- Department of Biotechnology
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Jung YK, Park MH, Moon HJ, Shinde UP, Jeong B. Changes in Nanoassembly of Oligocaprolactone End-Capped Pluronic F127 and the Abnormal Hydrophobicity Trend of Phase Transition. Macromolecules 2013. [DOI: 10.1021/ma400268r] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Yu Kyung Jung
- Department of Chemistry
and Nano Science, Department
of Bioinspired Science (WCU), Global Top 5 Program, Ewha Womans University, 52 Ewhayeodae-gil, Seodaemun-gu,
Seoul 120-750, Korea
| | - Min Hee Park
- Department of Chemistry
and Nano Science, Department
of Bioinspired Science (WCU), Global Top 5 Program, Ewha Womans University, 52 Ewhayeodae-gil, Seodaemun-gu,
Seoul 120-750, Korea
| | - Hyo Jung Moon
- Department of Chemistry
and Nano Science, Department
of Bioinspired Science (WCU), Global Top 5 Program, Ewha Womans University, 52 Ewhayeodae-gil, Seodaemun-gu,
Seoul 120-750, Korea
| | - Usha Pramod Shinde
- Department of Chemistry
and Nano Science, Department
of Bioinspired Science (WCU), Global Top 5 Program, Ewha Womans University, 52 Ewhayeodae-gil, Seodaemun-gu,
Seoul 120-750, Korea
| | - Byeongmoon Jeong
- Department of Chemistry
and Nano Science, Department
of Bioinspired Science (WCU), Global Top 5 Program, Ewha Womans University, 52 Ewhayeodae-gil, Seodaemun-gu,
Seoul 120-750, Korea
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Zhang Y, Zhao L, Chen M, Lang M. Synthesis and properties of Pluronic-based pentablock copolymers with pendant amino groups. Colloid Polym Sci 2013. [DOI: 10.1007/s00396-012-2889-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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Jabbari E, Yang X, Moeinzadeh S, He X. Drug release kinetics, cell uptake, and tumor toxicity of hybrid VVVVVVKK peptide-assembled polylactide nanoparticles. Eur J Pharm Biopharm 2012; 84:49-62. [PMID: 23275111 DOI: 10.1016/j.ejpb.2012.12.012] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2012] [Revised: 12/09/2012] [Accepted: 12/12/2012] [Indexed: 12/16/2022]
Abstract
An exciting approach to tumor delivery is encapsulation of the drug in self-assembled polymer-peptide nanoparticles. The objective of this work was to synthesize a conjugate of low molecular weight polylactide (LMW PLA) and V6K2 peptide and investigate self-assembly, drug release kinetics, cell uptake and toxicity, drug pharmacokinetics, and tumor cell invasion with Doxorubicin (DOX) or paclitaxel (PTX). The results for PLA-V6K2 self-assembled NPs were compared with those of polyethylene glycol stabilized PLA (PLA-EG) NPs. The size of PLA-V6K2 and PLA-EG NPs was 100 ± 20 and 130 ± 50 nm, respectively, with polydispersity index of 1.04 and 1.14. The encapsulation efficiency of DOX in PLA-V6K2 and PLA-EG NPs was 44 ± 9% and 55 ± 5%, respectively, and that of PTX was >90 for both NP types. The release of DOX and PTX from PLA-V6K2 was slower than that of PLA-EG, and the release rate was relatively constant with time. Based on molecular dynamic simulation, the less hydrophobic DOX was distributed in the lactide core as well as the peptide shell, while the hydrophobic PTX was localized mainly to the lactide core. PLA-V6K2 NPs had significantly higher cell uptake by 4T1 mouse breast carcinoma cells compared to PLA-EG NPs, which was attributed to the electrostatic interactions between the peptide and negatively charged moieties on the cell membrane. PLA-V6K2 NPs showed no toxicity to marrow stromal cells. DOX-loaded PLA-V6K2 NPs showed higher toxicity to 4T1 cells and the DNA damage response, and apoptosis was delayed compared to the free DOX. DOX or PTX encapsulated in PLA-V6K2 NPs significantly reduced invasion of 4T1 cells compared to those cells treated with the drug in PLA-EG NPs. Invasion of 4T1 cells treated with DOX in PLA-V6K2 and PLA-EG NPs was 5 ± 1% and 30 ± 5%, respectively, and that of PTX was 11 ± 2% and 40 ± 7%. The AUC of DOX in PLA-V6K2 NPs was 67% and 21% higher than those of free DOX and PLA-EG NPs, respectively. DOX-loaded PLA-V6K2 NPs injected in C3HeB/FeJ mice inoculated with MTCL syngeneic breast cancer cells displayed higher tumor toxicity than PLA-EG NPs and lower host toxicity than the free DOX. Cationic PLA-V6K2 NPs with higher tumor toxicity than the PLA-EG NPs are potentially useful in chemotherapy.
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Affiliation(s)
- Esmaiel Jabbari
- Department of Chemical Engineering, University of South Carolina, SC 29208, United States.
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Fu S, Guo G, Wang X, Zhou L, Gong C, Luo F, Zhao X, Wei Y, Qian Z. n-Hydroxyapatite/PCL-Pluronic-PCL Nanocomposites for Tissue Engineering. Part 2: Thermal and Tensile Study. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2012; 22:239-51. [PMID: 20557698 DOI: 10.1163/092050609x12597621921347] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Shaozhi Fu
- a State Key Laboratory of Biotherapy, West China Hospital, West China Medical School, Sichuan University, Chengdu 610041, P. R. China
| | - Gang Guo
- b State Key Laboratory of Biotherapy, West China Hospital, West China Medical School, Sichuan University, Chengdu 610041, P. R. China
| | - Xinlong Wang
- c College of Chemical Engineering, Sichuan University, Chengdu 610065, P. R. China
| | - Liangxue Zhou
- d State Key Laboratory of Biotherapy, West China Hospital, West China Medical School, Sichuan University, Chengdu 610041, P. R. China
| | - Changyang Gong
- e State Key Laboratory of Biotherapy, West China Hospital, West China Medical School, Sichuan University, Chengdu 610041, P. R. China
| | - Feng Luo
- f State Key Laboratory of Biotherapy, West China Hospital, West China Medical School, Sichuan University, Chengdu 610041, P. R. China
| | - Xia Zhao
- g State Key Laboratory of Biotherapy, West China Hospital, West China Medical School, Sichuan University, Chengdu 610041, P. R. China
| | - Yuquan Wei
- h State Key Laboratory of Biotherapy, West China Hospital, West China Medical School, Sichuan University, Chengdu 610041, P. R. China
| | - Zhiyong Qian
- i State Key Laboratory of Biotherapy, West China Hospital, West China Medical School, Sichuan University, Chengdu 610041, P. R. China
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Xu Z, Shen G, Xia X, Zhao X, Zhang P, Wu H, Guo Q, Qian Z, Wei Y, Liang S. Comparisons of three polyethyleneimine-derived nanoparticles as a gene therapy delivery system for renal cell carcinoma. J Transl Med 2011; 9:46. [PMID: 21513541 PMCID: PMC3108928 DOI: 10.1186/1479-5876-9-46] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2010] [Accepted: 04/23/2011] [Indexed: 02/05/2023] Open
Abstract
Background Polyethyleneimine (PEI), which can interact with negatively charged DNA through electrostatic interaction to form nanocomplexes, has been widely attempted to use as a gene delivery system. However, PEI has some defects that are not fit for keeping on gene expression. Therefore, some modifications against PEI properties have been done to improve their application value in gene delivery. In this study, three modified PEI derivatives, including poly(ε-caprolactone)-pluronic-poly(ε-caprolactone) grafted PEI (PCFC-g-PEI), folic acid-PCFC-isophorone diidocyanate-PEI (FA-PEAs) and heparin-PEI (HPEI), were evaluated in terms of their cytotoxicity and transfection efficiency in vitro and in vivo in order to ascertain their potential application in gene therapy. Methods MTT assay and a marker GFP gene, encoding green fluorescent protein, were used to evaluate cell toxicity and transfection activity of the three modified PEI in vitro. Renal cell carcinoma (RCC) models were established in BALB/c nude mice inoculated with OS-RC-2 cells to detect the gene therapy effects using the three PEI-derived nanoparticles as gene delivery vehicles. The expression status of a target gene Von Hippel-Lindau (VHL) in treated tumor tissues was analyzed by semiquantitative RT-PCR and immunohistochemistry. Results Each of three modified PEI-derived biomaterials had an increased transfection efficiency and a lower cytotoxicity compared with its precursor PEI with 25-kD or 2-kD molecule weight in vitro. And the mean tumor volume was obviously decreased 30% by using FA-PEAs to transfer VHL plasmids to treat mice RCC models. The VHL gene expression was greatly improved in the VHL-treated group. While there was no obvious tumor inhibition treated by PCFC-g-PEI:VHL and HPEI:VHL complexes. Conclusions The three modified PEI-derived biomaterials, including PCFC-g-PEI, FA-PEAs and HPEI, had an increased transfection efficiency in vitro and obviously lower toxicities compared with their precursor PEI molecules. The FA-PEAs probably provide a potential gene delivery system to treat RCC even other cancers in future.
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Affiliation(s)
- Zhizhong Xu
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, West China Medical School, Sichuan University, Chengdu, P. R. China
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Formulation and characterization of naked DNA and complexed DNA loaded polymer films. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2011. [DOI: 10.1016/j.msec.2010.08.021] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Jing GJ, Fu ZG, Dan B, Lin LR, Yang TC, Shi SL. Development and evaluation of a novel nano-scale vector for siRNA. J Cell Biochem 2011; 111:881-8. [PMID: 20665545 DOI: 10.1002/jcb.22776] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
To synthesize a lipid-cationic polymer (LCP) containing brassidic acid side chain and to investigate its transfection efficiency and characteristics as a siRNA gene vector. The LCP was chemically synthesized and its nucleic acid binding capacity was determined by gel electrophoresis. HeLa-EGFP and TH1080-EGFP cell lines were transfected with siRNA against enhanced green fluorescent protein (EGFP) gene using a LCP to investigate the transfection efficiency. An MTT assay was performed to evaluate the cellular toxicity of the LCP vector. Its degradability and stability under acidic conditions were also investigated. The LCP vector possessed high DNA binding capacity. More than 73% of the cellular fluorescence was inhibited by the LCP-mediated transfection of siRNA against EGFP gene, indicating that vector had high transfection efficiency. Cellular viability was about 95% at the optimum transfection efficiency of LCP, suggesting that the cellular toxicity of LCP was very low. The LCP was also observed to be degradable; moreover, it could be easily stored at normal temperature. A gene vector used for the transfection of siRNA was successfully fabricated from synthesized LCP. Its numerous excellent properties entitle values for further scientific research.
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Affiliation(s)
- Guang-Jun Jing
- Center of Clinical Laboratory, Zhongshan Hospital, Medical College of Xiamen University, Xiamen 361004, China
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Gou M, Men K, Zhang J, Li Y, Song J, Luo S, Shi H, Wen Y, Guo G, Huang M, Zhao X, Qian Z, Wei Y. Efficient inhibition of C-26 colon carcinoma by VSVMP gene delivered by biodegradable cationic nanogel derived from polyethyleneimine. ACS NANO 2010; 4:5573-84. [PMID: 20839784 DOI: 10.1021/nn1005599] [Citation(s) in RCA: 72] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Biodegradable cationic nanoparticles have promising application as a gene delivery system. In this article, heparin-polyethyleneimine (HPEI) nanogels were prepared, and these nanogels were developed as a nonviral gene vector. The transfection efficiency of HPEI nanogels was comparable with that of PEI25K, while the cytotoxicity was lower than that of PEI2K and much lower than that of PEI25K in vitro. These HPEI nanogels also had better blood compatibility than PEI25K. After intravenous administration, HPEI nanogels degraded, and the degradation products were excreted through urine. The plasmid expressing vesicular stomatitis virus matrix protein (pVSVMP) could be efficiently transfected into C-26 colon carcinoma cells by HPEI nanogels in vitro, inhibiting the cell proliferation through apoptosis induction. Intraperitoneal injection of pVSVMP/HPEI complexes efficiently inhibited the abdominal metastases of C-26 colon carcinoma through apoptosis induction (mean tumor weight in mice treated with pVSVMP/HPEI complex = 0.93 g and in control mice = 3.28 g, difference = 2.35 g, 95% confidence interval [CI] = 1.75-2.95 g, P < 0.001) and prolonged the survival of treated mice. Moreover, intravenous application of pVSVMP/HPEI complexes also inhibited the growth of pulmonary metastases of C-26 colon carcinoma through apoptosis induction. The HPEI nanogels delivering pVSVMP have promising application in treating colon carcinoma.
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Affiliation(s)
- MaLing Gou
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, West China Medical School, Sichuan University, Chengdu 610041, People’s Republic of China
| | - Ke Men
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, West China Medical School, Sichuan University, Chengdu 610041, People’s Republic of China
| | - Juan Zhang
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, West China Medical School, Sichuan University, Chengdu 610041, People’s Republic of China
| | - YuHua Li
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, West China Medical School, Sichuan University, Chengdu 610041, People’s Republic of China
| | - Jia Song
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, West China Medical School, Sichuan University, Chengdu 610041, People’s Republic of China
| | - Shan Luo
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, West China Medical School, Sichuan University, Chengdu 610041, People’s Republic of China
| | - HuaShan Shi
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, West China Medical School, Sichuan University, Chengdu 610041, People’s Republic of China
| | - YanJun Wen
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, West China Medical School, Sichuan University, Chengdu 610041, People’s Republic of China
| | - Gang Guo
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, West China Medical School, Sichuan University, Chengdu 610041, People’s Republic of China
| | - MeiJuan Huang
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, West China Medical School, Sichuan University, Chengdu 610041, People’s Republic of China
| | - Xia Zhao
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, West China Medical School, Sichuan University, Chengdu 610041, People’s Republic of China
| | - ZhiYong Qian
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, West China Medical School, Sichuan University, Chengdu 610041, People’s Republic of China
| | - YuQuan Wei
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, West China Medical School, Sichuan University, Chengdu 610041, People’s Republic of China
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Chou FF, Huang SC, Chang SF, Liaw J, Hung PH. Oral gene therapy for hypoparathyroidism: a rat model. Hum Gene Ther 2010; 20:1344-50. [PMID: 19619000 DOI: 10.1089/hum.2009.015] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
The use of nonionic polymeric micelles orally to protect and deliver plasmid DNA in vivo was investigated. Parathyroid hormone (PTH)(1-34) gene (179 bp) was inserted into a human cytomegalovirus promoter (PCMV) and E. coli competent cells were used to amplify the cDNA. Polymeric micelle formations (100 microl) formed from PCMV-PTH(1-34) cDNA (7.2 microg/microl) and 6% (w/v) polyethylene oxide-polypropylene oxide-polyethylene oxide (PEO-PPO-PEO) was administered at 8-hr intervals for 48 hr and then at 8-hr intervals for 24 hr weekly for 3 weeks. Parathyroidectomized rats receiving 150 microl of EDTA (10 mM) before each dose of formation served as the study group; rats receiving drinking water, EDTA (10 mM), PCMV-PTH(1-34) cDNA and PCMV-PTH(1-34) cDNA plus EDTA at the same amount and time intervals served as the control groups. Serum levels of calcium and PTH(1-34) were measured weekly for 4 weeks. Immunohistochemical stain for PTH(1-34), reverse transcriptase polymerase chain reaction for PTH(1-34) mRNA and the relative density of PTH(1-34) mRNA were performed at 2 and 4 weeks after oral gene therapy in different organs. One third to three of five rats in the control groups died after parathyroidectomy. Serum levels of calcium and PTH(1-34) were higher in the study than in the control groups. In the study group, positive stain of PTH(1-34) and PTH(1-34) mRNA could be found in those organs. Relative densities of PTH(1-34) mRNA were higher in the study than in the drinking water group in different organs. Oral gene therapy can maintain calcium and PTH(1-34) levels in parathyroidectomized rats.
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Affiliation(s)
- Fong-Fu Chou
- Department of Surgery, Chang Gung Memorial Hospital-Kaohsiung Medical Center, Chang Gung University College of Medicine, Niao-Sung Hsiang, Kaohsiung Hsien, Taiwan
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Han L, Zhang A, Wang H, Pu P, Jiang X, Kang C, Chang J. Tat-BMPs-PAMAM conjugates enhance therapeutic effect of small interference RNA on U251 glioma cells in vitro and in vivo. Hum Gene Ther 2010; 21:417-26. [PMID: 19899955 DOI: 10.1089/hum.2009.087] [Citation(s) in RCA: 84] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Polyamidoamine (PAMAM) dendrimer and Tat peptides were conjugated to bacterial magnetic nanoparticles (BMPs) for the construction of an efficient and targeted gene delivery system with transmembrane ability for the gene therapy of brain tumors. Tat-BMPs-PAMAM was complexed with small interfering RNA expression plasmid (psiRNA) corresponding to the open reading frame of the human epidermal growth factor receptor gene (psiRNA-EGFR) to downregulate the EGFR gene by electrostatic interaction. The antitumor effect of psiRNA-EGFR delivered via Tat-BMPs-PAMAM was assessed both in human glioblastoma U251-MG cells and in nude mouse models. Compared with control groups, Tat-BMPs-PAMAM/psiRNA-EGFR resulted in better suppression of EGFR expression and a more obviously arrested effect on the proliferation and invasion ability of U251 cells in vitro. In addition, the growth rate of tumor in the U251 subcutaneous nude mouse model treated with Tat-BMPs-PAMAM/psiRNA-EGFR was slower than in those treated with phosphate-buffered saline or Lipofectamine 2000/psiRNA-Scr. Also, compared with control groups, the expression of oncoproteins (EGFR, p-AKT, MMP2/9, PCNA, VEGF, Bcl-2, and cyclin D1) was obviously downregulated and the number of apoptotic cells was clearly increased in the Tat-BMPs-PAMAM/psiRNA-EGFR treatment groups. In addition, there was no significant difference between the results in vitro and in vivo for the Tat-BMPs-PAMAM/psiRNA-EGFR treatment groups and those of the Lipofectamine 2000/psiRNA-EGFR treatment groups. These results show that Tat-BMPs-PAMAM, with its targeted delivery and transmembrane ability, may be a novel gene delivery system with potential applications in the targeted gene therapy of brain tumors.
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Affiliation(s)
- Lei Han
- Institute of Nanobiotechnology, School of Materials Science and Engineering, Tianjin University, and Tianjin Key Laboratory of Composites and Functional Materials, Tianjin, 300072, PR China
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Coelho JF, Ferreira PC, Alves P, Cordeiro R, Fonseca AC, Góis JR, Gil MH. Drug delivery systems: Advanced technologies potentially applicable in personalized treatments. EPMA J 2010; 1:164-209. [PMID: 23199049 PMCID: PMC3405312 DOI: 10.1007/s13167-010-0001-x] [Citation(s) in RCA: 194] [Impact Index Per Article: 13.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2009] [Accepted: 01/25/2010] [Indexed: 12/31/2022]
Abstract
Advanced drug delivery systems (DDS) present indubitable benefits for drug administration. Over the past three decades, new approaches have been suggested for the development of novel carriers for drug delivery. In this review, we describe general concepts and emerging research in this field based on multidisciplinary approaches aimed at creating personalized treatment for a broad range of highly prevalent diseases (e.g., cancer and diabetes). This review is composed of two parts. The first part provides an overview on currently available drug delivery technologies including a brief history on the development of these systems and some of the research strategies applied. The second part provides information about the most advanced drug delivery devices using stimuli-responsive polymers. Their synthesis using controlled-living radical polymerization strategy is described. In a near future it is predictable the appearance of new effective tailor-made DDS, resulting from knowledge of different interdisciplinary sciences, in a perspective of creating personalized medical solutions.
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Affiliation(s)
- Jorge F. Coelho
- Department of Chemical Engineering, University of Coimbra, 3030-290 Coimbra, Portugal
| | - Paula C. Ferreira
- Department of Chemical Engineering, University of Coimbra, 3030-290 Coimbra, Portugal
- Department of Health Sciences, Portuguese Catholic University, 3504-505 Viseu, Portugal
| | - Patricia Alves
- Department of Chemical Engineering, University of Coimbra, 3030-290 Coimbra, Portugal
| | - Rosemeyre Cordeiro
- Department of Chemical Engineering, University of Coimbra, 3030-290 Coimbra, Portugal
| | - Ana C. Fonseca
- Department of Chemical Engineering, University of Coimbra, 3030-290 Coimbra, Portugal
| | - Joana R. Góis
- Department of Chemical Engineering, University of Coimbra, 3030-290 Coimbra, Portugal
| | - Maria H. Gil
- Department of Chemical Engineering, University of Coimbra, 3030-290 Coimbra, Portugal
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Shi S, Guo Q, Kan B, Fu S, Wang X, Gong C, Deng H, Luo F, Zhao X, Wei Y, Qian Z. A novel poly(epsilon-caprolactone)-pluronic-poly(epsilon-caprolactone) grafted polyethyleneimine(PCFC-g-PEI), Part 1, synthesis, cytotoxicity, and in vitro transfection study. BMC Biotechnol 2009; 9:65. [PMID: 19607728 PMCID: PMC2717081 DOI: 10.1186/1472-6750-9-65] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2008] [Accepted: 07/17/2009] [Indexed: 02/05/2023] Open
Abstract
Background Polyethyleneimine (PEI), a cationic polymer, is one of the successful and widely used vectors for non-viral gene transfection in vitro. However, its in vivo application was greatly limited due to its high cytotoxicity and short duration of gene expression. To improve its biocompatibility and transfection efficiency, PEI has been modified with PEG, folic acid, and chloroquine in order to improve biocompatibility and enhance targeting. Results Poly(ε-caprolactone)-Pluronic-Poly(ε-caprolactone) (PCFC) was synthesized by ring-opening polymerization, and PCFC-g-PEI was obtained by Michael addition reaction with GMA-PCFC-GMA and polyethyleneimine (PEI, 25 kD). The prepared PCFC-g-PEI was characterized by 1H-NMR, SEC-MALLS. Meanwhile, DNA condensation, DNase I protection, the particle size and zeta potential of PCFC-g-PEI/DNA complexes were also determined. According to the results of flow cytometry and MTT assay, the synthesized PCFC-g-PEI, with considerable transfection efficiency, had obviously lower cytotoxicity against 293 T and A549 cell lines compared with that of PEI 25 kD. Conclusion The cytotoxicity and in vitro transfection study indicated that PCFC-g-PEI copolymer prepared in this paper was a novel gene delivery system with lower cytotoxicity and considerable transfection efficiency compared with commercial PEI (25 kD).
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Affiliation(s)
- Shuai Shi
- State Key Lab of Biotherapy and Cancer Center, West China Hospital, West China Medical School, Sichuan University, Chengdu, 610041, PR China.
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