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Tarwadi, Pambudi S, Sriherwanto C, Sasangka AN, Bowolaksono A, Wijayadikusumah AR, Zeng W, Rachmawati H, Kartasasmita RE, Kazi M. Inclusion of TAT and NLS sequences in lipopeptide molecules generates homogenous nanoparticles for gene delivery applications. Int J Pharm 2024; 662:124492. [PMID: 39038720 DOI: 10.1016/j.ijpharm.2024.124492] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2024] [Revised: 07/15/2024] [Accepted: 07/17/2024] [Indexed: 07/24/2024]
Abstract
PURPOSES The objective of this study is to develop a versatile gene carrier based on lipopeptides capable of delivering genetic material into target cells with minimal cytotoxicity. METHODS Two lipopeptide molecules, palmitoyl-CKKHH and palmitoyl-CKKHH-YGRKKRRQRRR-PKKKRKV, were synthesized using solid phase peptide synthesis and evaluated as transfection agents. Physicochemical characterization of the lipopeptides included a DNA shift mobility assay, particle size measurement, and transmission electron microscopy (TEM) analysis. Cytotoxicity was assessed in CHO-K1 and HepG2 cells using the MTT assay, while transfection efficiency was determined by evaluating the expression of the green fluorescent protein-encoding gene. RESULTS Our findings demonstrate that the lipopeptides can bind, condense, and shield DNA from DNase degradation. The inclusion of the YGRKKRRQRRR sequence, a transcription trans activator, and the PKKKRKV sequence, a nuclear localization signal, imparts desirable properties. Lipopeptide-based TAT-NLS/DNA nanoparticles exhibited stability for up to 20 days when stored at 6-8 °C, displaying uniformity with a compact size of approximately 120 nm. Furthermore, the lipopeptides exhibited lower cytotoxicity compared to the poly-L-lysine. Transfection experiments revealed that protein expression mediated by the lipopeptide occurred at a charge ratio ranging from 4.0 to 8.0. CONCLUSION These results indicate that the lipopeptide, composed of a palmitoyl alkyl chain and TAT and NLS sequences, can efficiently condense and protect DNA, form stable and uniform nanoparticles, and exhibit promising characteristics as a potential gene carrier with minimal cytotoxicity.
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Affiliation(s)
- Tarwadi
- Research Center for Vaccines and Drugs, National Agency for Research and Innovation (BRIN), Building 610-611 Puspiptek Area, Tangerang Selatan, Banten 15314, Indonesia; PT Indomabs Biosantika Utama, Gedung Technology Business and Innovation Centre (TBIC), Pengasinan, Gunung Sindur, Kabupaten Bogor, Jawa Barat 16340, Indonesia.
| | - Sabar Pambudi
- Research Center for Vaccines and Drugs, National Agency for Research and Innovation (BRIN), Building 610-611 Puspiptek Area, Tangerang Selatan, Banten 15314, Indonesia.
| | - Catur Sriherwanto
- Research Centre for Applied Microbiology, National Agency for Research and Innovation (BRIN), Building 610-611 Puspiptek Area, Tangerang Selatan, Banten 15314, Indonesia.
| | - Ayu N Sasangka
- Biomedical Sciences, Faculty of Medicine, Universitas Indonesia, Depok, Jawa Barat 16424, Indonesia.
| | - Anom Bowolaksono
- Department of Biology, Faculty of Mathematics and Natural Sciences, Universitas Indonesia, Depok, Jawa Barat 16424, Indonesia.
| | - Acep R Wijayadikusumah
- Research and Development Division, PT. Bio Farma, Jl. Pasteur No 28 Bandung, Jawa Barat 40161, Indonesia.
| | - Weiguang Zeng
- Peter Doherty Institute, The University of Melbourne, 792 Elizabeth St, Melbourne, VIC 3000, Australia.
| | - Heni Rachmawati
- School of Pharmacy, Bandung Institute of Technology, Jl. Ganesa 10 Bandung, Jawa Barat 40132, Indonesia; Research Centre of Nano Sciences and Nanotechnology, Bandung Institute of Technology, Jl. Ganesa 10 Bandung 40132, Jawa Barat, Indonesia.
| | - Rahmana E Kartasasmita
- School of Pharmacy, Bandung Institute of Technology, Jl. Ganesa 10 Bandung, Jawa Barat 40132, Indonesia.
| | - Mohsin Kazi
- Department of Pharmaceutics, College of Pharmacy, POBOX-2457, King Saud University, Riyadh 11451, Saudi Arabia.
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Piroonpan T, Rimdusit P, Taechutrakul S, Pasanphan W. pH-Responsive Water-Soluble Chitosan Amphiphilic Core–Shell Nanoparticles: Radiation-Assisted Green Synthesis and Drug-Controlled Release Studies. Pharmaceutics 2023; 15:pharmaceutics15030847. [PMID: 36986708 PMCID: PMC10052151 DOI: 10.3390/pharmaceutics15030847] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Revised: 02/22/2023] [Accepted: 03/03/2023] [Indexed: 03/08/2023] Open
Abstract
This work aims to apply water radiolysis-mediated green synthesis of amphiphilic core–shell water-soluble chitosan nanoparticles (WCS NPs) via free radical graft copolymerization in an aqueous solution using irradiation. Robust grafting poly(ethylene glycol) monomethacrylate (PEGMA) comb-like brushes were established onto WCS NPs modified with hydrophobic deoxycholic acid (DC) using two aqueous solution systems, i.e., pure water and water/ethanol. The degree of grafting (DG) of the robust grafted poly(PEGMA) segments was varied from 0 to ~250% by varying radiation-absorbed doses from 0 to 30 kGy. Using reactive WCS NPs as a water-soluble polymeric template, a high amount of DC conjugation and a high degree of poly(PEGMA) grafted segments brought about high moieties of hydrophobic DC and a high DG of the poly(PEGMA) hydrophilic functions; meanwhile, the water solubility and NP dispersion were also markedly improved. The DC-WCS-PG building block was excellently self-assembled into the core–shell nanoarchitecture. The DC-WCS-PG NPs efficiently encapsulated water-insoluble anticancer and antifungal drugs, i.e., paclitaxel (PTX) and berberine (BBR) (~360 mg/g). The DC-WCS-PG NPs met the role of controlled release with a pH-responsive function due to WCS compartments, and they showed a steady state for maintaining drugs for up to >10 days. The DC-WCS-PG NPs prolonged the inhibition capacity of BBR against the growth of S. ampelinum for 30 days. In vitro cytotoxicity results of the PTX-loaded DC-WCS-PG NPs with human breast cancer cells and human skin fibroblast cells proved the role of the DC-WCS-PG NPs as a promising nanoplatform for controlling drug release and reducing the side effects of the drugs on normal cells.
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Affiliation(s)
- Thananchai Piroonpan
- Center of Radiation Processing for Polymer Modification and Nanotechnology (CRPN), Faculty of Science, Kasetsart University, Bangkok 10900, Thailand
| | - Pakjira Rimdusit
- Center of Radiation Processing for Polymer Modification and Nanotechnology (CRPN), Faculty of Science, Kasetsart University, Bangkok 10900, Thailand
| | - Saowaluk Taechutrakul
- Center of Radiation Processing for Polymer Modification and Nanotechnology (CRPN), Faculty of Science, Kasetsart University, Bangkok 10900, Thailand
- Department of Materials Science, Faculty of Science, Kasetsart University, Bangkok 10900, Thailand
| | - Wanvimol Pasanphan
- Center of Radiation Processing for Polymer Modification and Nanotechnology (CRPN), Faculty of Science, Kasetsart University, Bangkok 10900, Thailand
- Department of Materials Science, Faculty of Science, Kasetsart University, Bangkok 10900, Thailand
- Correspondence: ; Tel.: +662-577-5555 (ext. 646515)
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3
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Heath GR, Li M, Polignano IL, Richens JL, Catucci G, O’Shea P, Sadeghi SJ, Gilardi G, Butt JN, Jeuken LJC. Layer-by-Layer Assembly of Supported Lipid Bilayer Poly-l-Lysine Multilayers. Biomacromolecules 2015; 17:324-35. [DOI: 10.1021/acs.biomac.5b01434] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- George R. Heath
- School
of Biomedical Sciences, University of Leeds, Leeds LS2 9JT, United Kingdom
| | - Mengqiu Li
- School
of Biomedical Sciences, University of Leeds, Leeds LS2 9JT, United Kingdom
| | | | - Joanna L. Richens
- Cell
Biophysics Group, Institute of Biophysics, Imaging and Optical Science,
School of Life Sciences, University of Nottingham, Nottingham, NG7 2RD, United Kingdom
| | - Gianluca Catucci
- Life
Sciences and Systems Biology, University of Torino, 10123, Turin, Italy
| | - Paul O’Shea
- Cell
Biophysics Group, Institute of Biophysics, Imaging and Optical Science,
School of Life Sciences, University of Nottingham, Nottingham, NG7 2RD, United Kingdom
| | - Sheila J. Sadeghi
- Life
Sciences and Systems Biology, University of Torino, 10123, Turin, Italy
| | - Gianfranco Gilardi
- Life
Sciences and Systems Biology, University of Torino, 10123, Turin, Italy
| | - Julea N. Butt
- Centre
for Molecular and Structural Biochemistry, School of Biological Sciences,
and School of Chemistry, University of East Anglia, Norwich NR4 7TJ, United Kingdom
| | - Lars J. C. Jeuken
- School
of Biomedical Sciences, University of Leeds, Leeds LS2 9JT, United Kingdom
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4
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Culebras M, Grande CJ, Torres FG, Troncoso OP, Gomez CM, Bañó MC. Optimization of Cell Growth on Bacterial Cellulose by Adsorption of Collagen and Poly-L-Lysine. INT J POLYM MATER PO 2015. [DOI: 10.1080/00914037.2014.958829] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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5
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Chen BY, Huang YC, Jan JS. Molecular assembly of alkyl chain-grafted poly(l-lysine) tuned by backbone chain length and grafted alkyl chain. RSC Adv 2015. [DOI: 10.1039/c4ra14290j] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Alkyl chain-grafted poly(l-lysine) vesicles with tunable molecular assembly were prepared by varying the polypeptide chain length and grafted alkyl chains.
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Affiliation(s)
- Bo-Yu Chen
- Department of Chemical Engineering
- National Cheng Kung University
- Tainan
- Taiwan 70101
| | - Yun-Chiao Huang
- Department of Chemical Engineering
- National Cheng Kung University
- Tainan
- Taiwan 70101
| | - Jeng-Shiung Jan
- Department of Chemical Engineering
- National Cheng Kung University
- Tainan
- Taiwan 70101
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6
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Tokareva OS, Glettig DL, Abbott RD, Kaplan DL. Multifunctional spider silk polymers for gene delivery to human mesenchymal stem cells. J Biomed Mater Res B Appl Biomater 2014; 103:1390-401. [PMID: 25399785 DOI: 10.1002/jbm.b.33322] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2014] [Revised: 08/26/2014] [Accepted: 10/26/2014] [Indexed: 12/29/2022]
Abstract
Non-viral gene delivery systems are important transport vehicles that can be safe and effective alternatives to currently available viral systems. A new family of multifunctional spider silk-based gene carriers was bioengineered and found capable of targeting human mesenchymal stem cells (hMSCs). These carriers successfully delivered DNA to the nucleus of these mammalian cells. The presence of specific functional sequences in the recombinant proteins, such as a nuclear localization sequence (NLS) of the large tumor (T) antigen of the Simian virus 40 (SV40 ), an hMSC high affinity binding peptide (HAB), and a translocation motif (TLM) of the hepatitis-B virus surface protein (PreS2), and their roles in mitigation and enhancement of gene transfection efficiency towards hMSCs were characterized. The results demonstrate that these bioengineered spider silk proteins serve as effective carriers, without the well-known complications associated with viral delivery systems.
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Affiliation(s)
- Olena S Tokareva
- Department of Biomedical Engineering, Tufts University, Medford, Massachusetts, 02155
| | - Dean L Glettig
- Department of Biomedical Engineering, Tufts University, Medford, Massachusetts, 02155
| | - Rosalyn D Abbott
- Department of Biomedical Engineering, Tufts University, Medford, Massachusetts, 02155
| | - David L Kaplan
- Department of Biomedical Engineering, Tufts University, Medford, Massachusetts, 02155
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7
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Physicochemical characterization of amphiphilic nanoparticles based on the novel starch–deoxycholic acid conjugates and self-aggregates. Carbohydr Polym 2014; 102:838-45. [DOI: 10.1016/j.carbpol.2013.10.081] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2013] [Revised: 10/28/2013] [Accepted: 10/29/2013] [Indexed: 11/23/2022]
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8
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Bioactive vesicles from saccharide- and hexanoyl-modified poly(l-lysine) copolypeptides and evaluation of the cross-linked vesicles as carriers of doxorubicin for controlled drug release. Eur Polym J 2013. [DOI: 10.1016/j.eurpolymj.2012.11.020] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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9
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Sun C, Tang T, Uludağ H. Probing the Effects of Lipid Substitution on Polycation Mediated DNA Aggregation: A Molecular Dynamics Simulations Study. Biomacromolecules 2012; 13:2982-8. [DOI: 10.1021/bm301045b] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Chongbo Sun
- Department
of Mechanical Engineering, ‡Department of Chemical and Materials Engineering, ¶Department of Biomedical
Engineering, and §Faculty of Pharmacy and Pharmaceutical Sciences, University
of Alberta, Edmonton, Canada
| | - Tian Tang
- Department
of Mechanical Engineering, ‡Department of Chemical and Materials Engineering, ¶Department of Biomedical
Engineering, and §Faculty of Pharmacy and Pharmaceutical Sciences, University
of Alberta, Edmonton, Canada
| | - Hasan Uludağ
- Department
of Mechanical Engineering, ‡Department of Chemical and Materials Engineering, ¶Department of Biomedical
Engineering, and §Faculty of Pharmacy and Pharmaceutical Sciences, University
of Alberta, Edmonton, Canada
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10
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Impact of the nature, size and chain topologies of carbohydrate-phosphorylcholine polymeric gene delivery systems. Biomaterials 2012; 33:7858-70. [PMID: 22818654 DOI: 10.1016/j.biomaterials.2012.07.004] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2012] [Accepted: 07/01/2012] [Indexed: 01/10/2023]
Abstract
With the recent significant advances in the field polymer chemistry, it is now possible to produce well-defined and non-toxic cationic polymers with advanced molecular structures of desired molecular weights and compositions. Carefully engineered polymer architectures are found to impact significantly their DNA condensation and gene delivery efficacies. In a previous study, the statistical carbohydrates based copolymers were found to show high gene expression and low toxicity, however there aggregation in the presence of serum proteins was a major drawback. In this study, carbohydrate and phosphorylcholine based cationic polymers having a different architecture, compositions and varying molecular weights are produced and are termed as cationic 'block-statistical' copolymers. These cationic copolymers are evaluated for their gene delivery efficacies, interactions with serum protein, cellular uptake and nuclear localization ability. As compared to the statistical analogue, 'block-statistical' copolymers showed high gene expression, low interactions with serum proteins, as well as low toxicity in hepatocytes and human dermal fibroblasts. In addition, 2- methacryloyloxyethyl phosphorylcholine (MPC) based 'block-statistical' copolymers and their sugar incorporated analogues were prepared and were found to serve as improved gene delivery vectors than their statistical analogues.
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11
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Bahadur K. C. R, Uludağ H. A Comparative Evaluation of Disulfide-Linked and Hydrophobically-Modified PEI for Plasmid Delivery. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2012; 22:873-92. [DOI: 10.1163/092050610x496297] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Affiliation(s)
- Remant Bahadur K. C.
- a Department of Chemical and Material Engineering, Faculty of Engineering, University of Alberta, Edmonton, AB, Canada T6G 2G6
| | - Hasan Uludağ
- b Department of Chemical and Material Engineering, Faculty of Engineering, University of Alberta, Edmonton, AB, Canada T6G 2G6; Faculty of Pharmacy & Pharmaceutical Sciences, University of Alberta, Edmonton, AB, Canada T6G 2G6; Department of Biomedical Engineering, Faculty of Medicine & Dentistry, University of Alberta, Edmonton, AB, Canada T6G 2G6.
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12
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Zhou D, Li C, Hu Y, Zhou H, Chen J, Zhang Z, Guo T. PLL/pDNA/P(His-co-DMAEL) ternary complexes: assembly, stability and gene delivery. ACTA ACUST UNITED AC 2012. [DOI: 10.1039/c2jm30850a] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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13
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Zhou D, Li C, Hu Y, Zhou H, Chen J, Zhang Z, Guo T. The effects of a multifunctional oligomer and its incorporation strategies on the gene delivery efficiency of poly(l-lysine). Chem Commun (Camb) 2012; 48:4594-6. [DOI: 10.1039/c2cc31359f] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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14
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Truong NP, Jia Z, Burges M, McMillan NAJ, Monteiro MJ. Self-Catalyzed Degradation of Linear Cationic Poly(2-dimethylaminoethyl acrylate) in Water. Biomacromolecules 2011; 12:1876-82. [DOI: 10.1021/bm200219e] [Citation(s) in RCA: 73] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Nghia P. Truong
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, Brisbane QLD 4072, Australia
| | - Zhongfan Jia
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, Brisbane QLD 4072, Australia
| | - Melinda Burges
- Diamantina Institute, The University of Queensland, Brisbane QLD 4072, Australia
| | - Nigel A. J. McMillan
- Diamantina Institute, The University of Queensland, Brisbane QLD 4072, Australia
| | - Michael J. Monteiro
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, Brisbane QLD 4072, Australia
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15
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Abbasi M, Lavasanifar A, Berthiaume LG, Weinfeld M, Uludağ H. Cationic polymer-mediated small interfering RNA delivery for P-glycoprotein down-regulation in tumor cells. Cancer 2010; 116:5544-54. [DOI: 10.1002/cncr.25321] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2009] [Accepted: 02/09/2010] [Indexed: 11/08/2022]
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16
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Zhou H, Yu W, Guo X, Liu X, Li N, Zhang Y, Ma X. Synthesis and Characterization of Amphiphilic Glycidol−Chitosan−Deoxycholic Acid Nanoparticles as a Drug Carrier for Doxorubicin. Biomacromolecules 2010; 11:3480-6. [DOI: 10.1021/bm100989x] [Citation(s) in RCA: 82] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Huofei Zhou
- Laboratory of Biomedical Material Engineering, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, People’s Republic of China, Graduate School of the Chinese Academy of Sciences, Beijing 100039, People’s Republic of China, and College of Environment and Chemical Engineering, Dalian University, Dalian Economic Technological Development Zone, Dalian, 116622, People’s Republic of China
| | - Weiting Yu
- Laboratory of Biomedical Material Engineering, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, People’s Republic of China, Graduate School of the Chinese Academy of Sciences, Beijing 100039, People’s Republic of China, and College of Environment and Chemical Engineering, Dalian University, Dalian Economic Technological Development Zone, Dalian, 116622, People’s Republic of China
| | - Xin Guo
- Laboratory of Biomedical Material Engineering, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, People’s Republic of China, Graduate School of the Chinese Academy of Sciences, Beijing 100039, People’s Republic of China, and College of Environment and Chemical Engineering, Dalian University, Dalian Economic Technological Development Zone, Dalian, 116622, People’s Republic of China
| | - Xiudong Liu
- Laboratory of Biomedical Material Engineering, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, People’s Republic of China, Graduate School of the Chinese Academy of Sciences, Beijing 100039, People’s Republic of China, and College of Environment and Chemical Engineering, Dalian University, Dalian Economic Technological Development Zone, Dalian, 116622, People’s Republic of China
| | - Nan Li
- Laboratory of Biomedical Material Engineering, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, People’s Republic of China, Graduate School of the Chinese Academy of Sciences, Beijing 100039, People’s Republic of China, and College of Environment and Chemical Engineering, Dalian University, Dalian Economic Technological Development Zone, Dalian, 116622, People’s Republic of China
| | - Ying Zhang
- Laboratory of Biomedical Material Engineering, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, People’s Republic of China, Graduate School of the Chinese Academy of Sciences, Beijing 100039, People’s Republic of China, and College of Environment and Chemical Engineering, Dalian University, Dalian Economic Technological Development Zone, Dalian, 116622, People’s Republic of China
| | - Xiaojun Ma
- Laboratory of Biomedical Material Engineering, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, People’s Republic of China, Graduate School of the Chinese Academy of Sciences, Beijing 100039, People’s Republic of China, and College of Environment and Chemical Engineering, Dalian University, Dalian Economic Technological Development Zone, Dalian, 116622, People’s Republic of China
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17
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Kim NY, Choi YB, Kang CI, Kim HH, Yang JM, Shin S. An hydrophobically modified arginine peptide vector system effectively delivers DNA into human mesenchymal stem cells and maintains transgene expression with differentiation. J Gene Med 2010; 12:779-89. [DOI: 10.1002/jgm.1497] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
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18
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Raviña M, de la Fuente M, Correa J, Sousa-Herves A, Pinto J, Fernandez-Megia E, Riguera R, Sanchez A, Alonso MJ. Core−Shell Dendriplexes with Sterically Induced Stoichiometry for Gene Delivery. Macromolecules 2010. [DOI: 10.1021/ma100785m] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Manuela Raviña
- Department of Pharmacy and Pharmaceutical Technology, University of Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - Maria de la Fuente
- Department of Pharmacy and Pharmaceutical Technology, University of Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - Juan Correa
- Department of Organic Chemistry and Center for Research in Biological Chemistry and Molecular Materials, University of Santiago de Compostela, Jenaro de la Fuente s/n, 15782 Santiago de Compostela, Spain
| | - Ana Sousa-Herves
- Department of Organic Chemistry and Center for Research in Biological Chemistry and Molecular Materials, University of Santiago de Compostela, Jenaro de la Fuente s/n, 15782 Santiago de Compostela, Spain
| | - Jorge Pinto
- Department of Pharmacy and Pharmaceutical Technology, University of Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - Eduardo Fernandez-Megia
- Department of Organic Chemistry and Center for Research in Biological Chemistry and Molecular Materials, University of Santiago de Compostela, Jenaro de la Fuente s/n, 15782 Santiago de Compostela, Spain
| | - Ricardo Riguera
- Department of Organic Chemistry and Center for Research in Biological Chemistry and Molecular Materials, University of Santiago de Compostela, Jenaro de la Fuente s/n, 15782 Santiago de Compostela, Spain
| | - Alejandro Sanchez
- Department of Pharmacy and Pharmaceutical Technology, University of Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - Maria Jose Alonso
- Department of Pharmacy and Pharmaceutical Technology, University of Santiago de Compostela, 15782 Santiago de Compostela, Spain
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19
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Zhang XF, Xiang JF, Tian MY, Yang QF, Sun HX, Yang S, Tang YL. Formation of an intramolecular G-quadruplex of human telomere induced by poly(L-lysine) under salt-deficient conditions. J Phys Chem B 2009; 113:7662-7. [PMID: 19408914 DOI: 10.1021/jp811183a] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
A single-stranded G-tract human telomere DNA sequence is able to fold into intramolecular G-quadruplex structures which may be important for a number of biological processes and disease-related mechanisms. Poly(L-lysine) (PLL) polymer is linear polypeptides with lysine as the repeat unit and has been employed as a gene carrier in achieving targeted delivery of DNA to cancer cells. To explore the influence of PLL on the conformation of Hum24 DNA, we have investigated the interaction of PLL with Hum24 by biophysical methods, mainly CD, ESI-MS, and polyacrylamide gel electrophoresis for the first time. The CD data have shown that PLL can induce single-stranded Hum24 to form an intramolecular parallel G-quadruplex structure, further confirmed by ESI-MS analysis and gel electrophoresis results. The formation of an intramolecular G-quadruplex is strongly dependent on the Hum24/PLL molar ratios and the length of both the polypeptides and oligonucleotide. Such phenomena may be interpreted by electrostatically attracting negative-charged Hum24 by positive-charged PLL which facilitates the close contact between the guanines and formation of hydrogen bonding, thus leading the final shape of a G-quadruplex structure.
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Affiliation(s)
- Xiu-feng Zhang
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
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20
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Daugulis AJ. A survey of bioengineering research in Canada-2007. Biotechnol Prog 2009; 24:795-806. [PMID: 19194891 DOI: 10.1002/btpr.15] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
Research activity in bioengineering at Canadian universities has been surveyed. Details were provided by chemical engineering departments in response to a common request for information on activities by individual researchers and for key publications. The information provided has been grouped by topics within the broad theme of "Bioengineering," and contributions from individual departments have been summarized within these topics. Although many aspects of bioengineering research are being pursued in Canada, it would appear as though environmental biotechnology, biomaterials, and tissue/cell culture are the most active areas under investigation.
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Affiliation(s)
- Andrew J Daugulis
- Dept. of Chemical Engineering, Queen's University, Kingston, ON, Canada K7L 3N6.
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21
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Bajaj A, Kondaiah P, Bhattacharya S. Synthesis and Gene Transfection Efficacies of PEI−Cholesterol-Based Lipopolymers. Bioconjug Chem 2008; 19:1640-51. [DOI: 10.1021/bc700381v] [Citation(s) in RCA: 90] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Avinash Bajaj
- Department of Organic Chemistry, and Department of Molecular Reproduction, Development, and Genetics, Indian Institute of Science, Bangalore 560 012, India, and Chemical Biology Unit of JNCASR, Bangalore 560 064, India
| | - Paturu Kondaiah
- Department of Organic Chemistry, and Department of Molecular Reproduction, Development, and Genetics, Indian Institute of Science, Bangalore 560 012, India, and Chemical Biology Unit of JNCASR, Bangalore 560 064, India
| | - Santanu Bhattacharya
- Department of Organic Chemistry, and Department of Molecular Reproduction, Development, and Genetics, Indian Institute of Science, Bangalore 560 012, India, and Chemical Biology Unit of JNCASR, Bangalore 560 064, India
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22
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Abbasi M, Uludaǧ H, Incani V, Yu Ming Hsu C, Jeffery A. Further Investigation of Lipid-Substituted Poly(l-Lysine) Polymers for Transfection of Human Skin Fibroblasts. Biomacromolecules 2008; 9:1618-30. [DOI: 10.1021/bm800132n] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Meysam Abbasi
- Department of Biomedical Engineering, Faculty of Medicine and Dentistry, Department of Chemical and Materials Engineering, Faculty of Engineering, and Faculty of Pharmacy and Pharmaceutical Sciences, University of Alberta, Edmonton, Alberta, Canada
| | - Hasan Uludaǧ
- Department of Biomedical Engineering, Faculty of Medicine and Dentistry, Department of Chemical and Materials Engineering, Faculty of Engineering, and Faculty of Pharmacy and Pharmaceutical Sciences, University of Alberta, Edmonton, Alberta, Canada
| | - Vanessa Incani
- Department of Biomedical Engineering, Faculty of Medicine and Dentistry, Department of Chemical and Materials Engineering, Faculty of Engineering, and Faculty of Pharmacy and Pharmaceutical Sciences, University of Alberta, Edmonton, Alberta, Canada
| | - Charlie Yu Ming Hsu
- Department of Biomedical Engineering, Faculty of Medicine and Dentistry, Department of Chemical and Materials Engineering, Faculty of Engineering, and Faculty of Pharmacy and Pharmaceutical Sciences, University of Alberta, Edmonton, Alberta, Canada
| | - Andrea Jeffery
- Department of Biomedical Engineering, Faculty of Medicine and Dentistry, Department of Chemical and Materials Engineering, Faculty of Engineering, and Faculty of Pharmacy and Pharmaceutical Sciences, University of Alberta, Edmonton, Alberta, Canada
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23
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Selective immobilization of biomolecules onto an activated polymeric adlayer. Biointerphases 2007; 2:136-42. [DOI: 10.1116/1.2801974] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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