1
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Malina J, Kostrhunova H, Novohradsky V, Scott P, Brabec V. Metallohelix vectors for efficient gene delivery via cationic DNA nanoparticles. Nucleic Acids Res 2022; 50:674-683. [PMID: 35018455 PMCID: PMC8789045 DOI: 10.1093/nar/gkab1277] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2021] [Revised: 12/07/2021] [Accepted: 12/14/2021] [Indexed: 01/31/2023] Open
Abstract
The design of efficient and safe gene delivery vehicles remains a major challenge for the application of gene therapy. Of the many reported gene delivery systems, metal complexes with high affinity for nucleic acids are emerging as an attractive option. We have discovered that certain metallohelices-optically pure, self-assembling triple-stranded arrays of fully encapsulated Fe-act as nonviral DNA delivery vectors capable of mediating efficient gene transfection. They induce formation of globular DNA particles which protect the DNA from degradation by various restriction endonucleases, are of suitable size and electrostatic potential for efficient membrane transport and are successfully processed by cells. The activity is highly structure-dependent-compact and shorter metallohelix enantiomers are far less efficient than less compact and longer enantiomers.
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Affiliation(s)
- Jaroslav Malina
- Czech Academy of Sciences, Institute of Biophysics, Brno, CZ-61265, Czech Republic
| | - Hana Kostrhunova
- Czech Academy of Sciences, Institute of Biophysics, Brno, CZ-61265, Czech Republic
| | - Vojtech Novohradsky
- Czech Academy of Sciences, Institute of Biophysics, Brno, CZ-61265, Czech Republic
| | - Peter Scott
- Department of Chemistry, University of Warwick, Coventry, CV4 7AL, UK
| | - Viktor Brabec
- Czech Academy of Sciences, Institute of Biophysics, Brno, CZ-61265, Czech Republic
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2
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Liu G, Lovell JF, Zhang L, Zhang Y. Stimulus-Responsive Nanomedicines for Disease Diagnosis and Treatment. Int J Mol Sci 2020; 21:E6380. [PMID: 32887466 PMCID: PMC7504550 DOI: 10.3390/ijms21176380] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2020] [Revised: 08/26/2020] [Accepted: 08/31/2020] [Indexed: 02/07/2023] Open
Abstract
Stimulus-responsive drug delivery systems generally aim to release the active pharmaceutical ingredient (API) in response to specific conditions and have recently been explored for disease treatments. These approaches can also be extended to molecular imaging to report on disease diagnosis and management. The stimuli used for activation are based on differences between the environment of the diseased or targeted sites, and normal tissues. Endogenous stimuli include pH, redox reactions, enzymatic activity, temperature and others. Exogenous site-specific stimuli include the use of magnetic fields, light, ultrasound and others. These endogenous or exogenous stimuli lead to structural changes or cleavage of the cargo carrier, leading to release of the API. A wide variety of stimulus-responsive systems have been developed-responsive to both a single stimulus or multiple stimuli-and represent a theranostic tool for disease treatment. In this review, stimuli commonly used in the development of theranostic nanoplatforms are enumerated. An emphasis on chemical structure and property relationships is provided, aiming to focus on insights for the design of stimulus-responsive delivery systems. Several examples of theranostic applications of these stimulus-responsive nanomedicines are discussed.
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Affiliation(s)
- Gengqi Liu
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, China;
- Key Laboratory of Systems Bioengineering (Ministry of Education), Tianjin University, Tianjin 300072, China
| | - Jonathan F. Lovell
- Department of Biomedical Engineering, The State University of New York at Buffalo, Buffalo, NY 14260, USA;
| | - Lei Zhang
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, China;
- Key Laboratory of Systems Bioengineering (Ministry of Education), Tianjin University, Tianjin 300072, China
| | - Yumiao Zhang
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, China;
- Key Laboratory of Systems Bioengineering (Ministry of Education), Tianjin University, Tianjin 300072, China
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3
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Nanoparticulate polyelectrolyte complexes of thermally sensitive poly(l-lysine)-based copolymers and DNA. Eur Polym J 2018. [DOI: 10.1016/j.eurpolymj.2018.03.028] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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4
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Sun M, Wang K, Oupický D. Advances in Stimulus-Responsive Polymeric Materials for Systemic Delivery of Nucleic Acids. Adv Healthc Mater 2018; 7:10.1002/adhm.201701070. [PMID: 29227047 PMCID: PMC5821579 DOI: 10.1002/adhm.201701070] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2017] [Revised: 10/13/2017] [Indexed: 01/02/2023]
Abstract
Polymeric materials that respond to a variety of endogenous and external stimuli are actively developed to overcome the main barriers to successful systemic delivery of therapeutic nucleic acids. Here, an overview of viable stimuli that are proved to improve systemic delivery of nucleic acids is provided. The main focus is placed on nucleic acid delivery systems (NADS) based on polymers that respond to pathological or physiological changes in pH, redox state, enzyme levels, hypoxia, and reactive oxygen species levels. Additional discussion is focused on NADS suitable for applications that use external stimuli, such as light, ultrasound, and local hyperthermia.
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Affiliation(s)
- Minjie Sun
- State Key Laboratory of Natural Medicines, Key Laboratory on Protein Chemistry and Structural Biology, Department of Pharmaceutics, China Pharmaceutical University, Nanjing, 210009, P.R. China
| | - Kaikai Wang
- State Key Laboratory of Natural Medicines, Key Laboratory on Protein Chemistry and Structural Biology, Department of Pharmaceutics, China Pharmaceutical University, Nanjing, 210009, P.R. China
| | - David Oupický
- State Key Laboratory of Natural Medicines, Key Laboratory on Protein Chemistry and Structural Biology, Department of Pharmaceutics, China Pharmaceutical University, Nanjing, 210009, P.R. China
- Center for Drug Delivery and Nanomedicine, Department of Pharmaceutical Sciences, University of Nebraska Medical Center, Omaha, NE 68198, United States
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5
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Sahoo S, Bera S, Maiti S, Dhara D. Temperature- and Composition-Dependent DNA Condensation by Thermosensitive Block Copolymers. ACS OMEGA 2017; 2:7946-7958. [PMID: 30023568 PMCID: PMC6045361 DOI: 10.1021/acsomega.7b01331] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/08/2017] [Accepted: 11/03/2017] [Indexed: 06/08/2023]
Abstract
Successful intracellular delivery of genes requires an efficient carrier, as genes by themselves cannot diffuse across cell membranes. Because of the toxicity and immunogenicity of viral vectors, nonviral vectors are gaining tremendous interest in research. In this work, we have investigated the temperature-dependent DNA condensation efficiency of various compositions of a thermosensitive block copolymer viz., poly(N-isopropylacrylamide)-b-poly(2-(diethylamino)ethyl methacrylate) (PNIPA-b-PDMAEMA). Three different copolymer compositions of varying molecular weights were successfully synthesized via the RAFT polymerization technique. Steady-state fluorescence and circular dichroism (CD) spectroscopies, dynamic light scattering (DLS) and zeta potential measurements, agarose gel electrophoresis, and atomic force microscopy techniques were utilized to study the interaction of the copolymers with DNA at temperatures above and below the critical aggregation temperature (CAT). All these experiments revealed that, above the CAT, there was formation of highly stable and tight polymer-DNA complexes (polyplexes). The size of polyplexes was dependent on the temperature up to a certain charge ratio, as determined by the DLS results. The results obtained from temperature-dependent fluorescence spectroscopy, CD, and gel electrophoresis indicated that the DNA molecules were shielded more from aqueous exposure above the CAT because of the formation of relatively more compact complexes. The polyplexes also exhibited changes in the particle morphology below and above the CAT, with particles generated above CAT being more spherical in morphology. These results suggested at the possibility of modulating the complex formation by temperature modification. The present biophysical studies would provide new physical insight into the design of novel gene carriers.
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Affiliation(s)
| | | | | | - Dibakar Dhara
- E-mail: , . Phone: +91-3222-282326. Fax: +91-3222-282252 (D.D.)
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6
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A smart gene delivery platform: Cationic oligomer. Eur J Pharm Sci 2017; 105:33-40. [PMID: 28478134 DOI: 10.1016/j.ejps.2017.05.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2017] [Revised: 04/17/2017] [Accepted: 05/02/2017] [Indexed: 02/04/2023]
Abstract
Low transfection efficiency and high cytotoxicity of polymeric gene carriers have hampered the application of numerous polycations for gene therapy. To overcome this barrier, a cationic glycoconjugate of kanamycin and di(ethylene glycol) diacrylate was prepared via a facile approach. Nuclear magnetic resonance, Fourier transform infrared spectroscopy, and size exclusion chromatography were employed to investigate the resulting materials. Agarose gel electrophoresis, atomic force microscopy, and circular dichroism spectroscopy were used to record the interaction of the cationic oligomer and plasmid DNA. Finally, the cytotoxicity and transfection efficiency were evaluated by using COS-7 cells. The results indicated that cationic oligomers had been obtained and plasmid DNA was condensed into nanocomplexes, with a high transfection efficiency of the oligomer and a low toxicity in COS-7 cell line. It provided a novel perspective to develop gene carrier, with better safety and greater transfection efficiency, compared to traditional high molecular weight polymers.
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7
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Karimi M, Zangabad PS, Ghasemi A, Amiri M, Bahrami M, Malekzad H, Asl HG, Mahdieh Z, Bozorgomid M, Ghasemi A, Boyuk MRRT, Hamblin MR. Temperature-Responsive Smart Nanocarriers for Delivery Of Therapeutic Agents: Applications and Recent Advances. ACS APPLIED MATERIALS & INTERFACES 2016; 8:21107-33. [PMID: 27349465 PMCID: PMC5003094 DOI: 10.1021/acsami.6b00371] [Citation(s) in RCA: 219] [Impact Index Per Article: 27.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
Smart drug delivery systems (DDSs) have attracted the attention of many scientists, as carriers that can be stimulated by changes in environmental parameters such as temperature, pH, light, electromagnetic fields, mechanical forces, etc. These smart nanocarriers can release their cargo on demand when their target is reached and the stimulus is applied. Using the techniques of nanotechnology, these nanocarriers can be tailored to be target-specific, and exhibit delayed or controlled release of drugs. Temperature-responsive nanocarriers are one of most important groups of smart nanoparticles (NPs) that have been investigated during the past decades. Temperature can either act as an external stimulus when heat is applied from the outside, or can be internal when pathological lesions have a naturally elevated termperature. A low critical solution temperature (LCST) is a special feature of some polymeric materials, and most of the temperature-responsive nanocarriers have been designed based on this feature. In this review, we attempt to summarize recent efforts to prepare innovative temperature-responsive nanocarriers and discuss their novel applications.
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Affiliation(s)
- Mahdi Karimi
- Department of Medical Nanotechnology, Faculty of Advanced Technologies in Medicine, Iran University of Medical Sciences, Tehran, Iran
- Advanced Nanobiotechnology and Nanomedicine Research Group (ANNRG), Iran University of Medical Sciences, Tehran, Iran
- Wellman Center for Photomedicine, Massachusetts General Hospital, Boston, Massachusetts 02114, United States
| | - Parham Sahandi Zangabad
- Research Center for Pharmaceutical Nanotechnology (RCPN), Tabriz University of Medical Science (TUOMS), Tabriz, Iran
- Department of Materials Science and Engineering, Sharif University of Technology, Azadi Avenue, 14588 Tehran, Iran
- Advanced Nanobiotechnology and Nanomedicine Research Group (ANNRG), Iran University of Medical Sciences, Tehran, Iran
| | - Alireza Ghasemi
- Department of Materials Science and Engineering, Sharif University of Technology, Azadi Avenue, 14588 Tehran, Iran
| | - Mohammad Amiri
- Department of Materials Science and Engineering, Sharif University of Technology, Azadi Avenue, 14588 Tehran, Iran
| | - Mohsen Bahrami
- Department of Materials Science and Engineering, Sharif University of Technology, Azadi Avenue, 14588 Tehran, Iran
| | - Hedieh Malekzad
- Advanced Nanobiotechnology and Nanomedicine Research Group (ANNRG), Iran University of Medical Sciences, Tehran, Iran
- Department of Chemistry, Kharazmi University of Tehran, Tehran, Iran
| | - Hadi Ghahramanzadeh Asl
- Department of Materials Science and Engineering, Sharif University of Technology, Azadi Avenue, 14588 Tehran, Iran
| | - Zahra Mahdieh
- Department of Biomedical and Pharmaceutical Sciences, Material Science and Engineering, University of Montana, Missoula, Montana 59812, United States
| | - Mahnaz Bozorgomid
- Department of Applied Chemistry, Central Branch of Islamic Azad University of Tehran, Tehran, Iran
| | - Amir Ghasemi
- Department of Materials Science and Engineering, Sharif University of Technology, Azadi Avenue, 14588 Tehran, Iran
- Advanced Nanobiotechnology and Nanomedicine Research Group (ANNRG), Iran University of Medical Sciences, Tehran, Iran
| | | | - Michael R. Hamblin
- Wellman Center for Photomedicine, Massachusetts General Hospital, Boston, Massachusetts 02114, United States
- Department of Dermatology, Harvard Medical School, Boston, Massachusetts 02115, United States
- Harvard-MIT Division of Health Sciences and Technology, Cambridge, Massachusetts 02139, United States
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8
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Insua I, Wilkinson A, Fernandez-Trillo F. Polyion complex (PIC) particles: Preparation and biomedical applications. Eur Polym J 2016; 81:198-215. [PMID: 27524831 PMCID: PMC4973809 DOI: 10.1016/j.eurpolymj.2016.06.003] [Citation(s) in RCA: 86] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2016] [Revised: 06/01/2016] [Accepted: 06/03/2016] [Indexed: 12/27/2022]
Abstract
Oppositely charged polyions can self-assemble in solution to form colloidal polyion complex (PIC) particles. Such nanomaterials can be loaded with charged therapeutics such as DNA, drugs or probes for application as novel nanomedicines and chemical sensors to detect disease markers. A comprehensive discussion of the factors affecting PIC particle self-assembly and their response to physical and chemical stimuli in solution is described herein. Finally, a collection of key examples of polyionic nanoparticles for biomedical applications is discussed to illustrate their behaviour and demonstrate the potential of PIC nanoparticles in medicine.
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9
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Tian L, Lu L, Qiao Y, Ravi S, Salatan F, Melancon MP. Stimuli-Responsive Gold Nanoparticles for Cancer Diagnosis and Therapy. J Funct Biomater 2016. [PMID: 27455336 PMCID: PMC5040992 DOI: 10.3390/jfb7030019] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
An emerging concept is that cancers strongly depend on both internal and external signals for growth and invasion. In this review, we will discuss pathological and physical changes in the tumor microenvironment and how these changes can be exploited to design gold nanoparticles for cancer diagnosis and therapy. These intrinsic changes include extracellular and intracellular pH, extracellular matrix enzymes, and glutathione concentration. External stimuli include the application of laser, ultrasound and X-ray. The biology behind these changes and the chemistry behind the responding mechanisms to these changes are reviewed. Examples of recent in vitro and in vivo studies are also presented, and the clinical implications of these findings are discussed.
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Affiliation(s)
- Li Tian
- Department of Interventional Radiology, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Boulevard, Houston, TX 77030, USA; (L.T.); (Y.Q.); (F.S.)
| | - Linfeng Lu
- Department of Interventional Radiology, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Boulevard, Houston, TX 77030, USA; (L.T.); (Y.Q.); (F.S.)
- Department of Chemical and Biomolecular Engineering, Rice University, 6100 Main Street, Houston, TX 77005, USA;
| | - Yang Qiao
- Department of Interventional Radiology, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Boulevard, Houston, TX 77030, USA; (L.T.); (Y.Q.); (F.S.)
| | - Saisree Ravi
- Department of Interventional Radiology, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Boulevard, Houston, TX 77030, USA; (L.T.); (Y.Q.); (F.S.)
- Department of BioSciences, Rice University, 6100 Main Street, Houston, TX 77005, USA;
| | - Ferandre Salatan
- Department of Interventional Radiology, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Boulevard, Houston, TX 77030, USA; (L.T.); (Y.Q.); (F.S.)
| | - Marites P. Melancon
- Department of Interventional Radiology, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Boulevard, Houston, TX 77030, USA; (L.T.); (Y.Q.); (F.S.)
- Graduate School for Biomedical Science, University of Texas Health Science Center at Houston, 6767 Bertner Ave., Houston, TX 77030, USA
- Correspondence: ; Tel.: +1-713-794-5387
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10
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Tian L, Lu L, Qiao Y, Ravi S, Salatan F, Melancon MP. Stimuli-Responsive Gold Nanoparticles for Cancer Diagnosis and Therapy. J Funct Biomater 2016; 7:E19. [PMID: 27455336 PMCID: PMC5040992 DOI: 10.3390/jfb7020019] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2016] [Revised: 07/13/2016] [Accepted: 07/15/2016] [Indexed: 01/03/2023] Open
Abstract
An emerging concept is that cancers strongly depend on both internal and external signals for growth and invasion. In this review, we will discuss pathological and physical changes in the tumor microenvironment and how these changes can be exploited to design gold nanoparticles for cancer diagnosis and therapy. These intrinsic changes include extracellular and intracellular pH, extracellular matrix enzymes, and glutathione concentration. External stimuli include the application of laser, ultrasound and X-ray. The biology behind these changes and the chemistry behind the responding mechanisms to these changes are reviewed. Examples of recent in vitro and in vivo studies are also presented, and the clinical implications of these findings are discussed.
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Affiliation(s)
- Li Tian
- Department of Interventional Radiology, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Boulevard, Houston, TX 77030, USA; (L.T.); (Y.Q.); (F.S.)
| | - Linfeng Lu
- Department of Interventional Radiology, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Boulevard, Houston, TX 77030, USA; (L.T.); (Y.Q.); (F.S.)
- Department of Chemical and Biomolecular Engineering, Rice University, 6100 Main Street, Houston, TX 77005, USA;
| | - Yang Qiao
- Department of Interventional Radiology, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Boulevard, Houston, TX 77030, USA; (L.T.); (Y.Q.); (F.S.)
| | - Saisree Ravi
- Department of Interventional Radiology, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Boulevard, Houston, TX 77030, USA; (L.T.); (Y.Q.); (F.S.)
- Department of BioSciences, Rice University, 6100 Main Street, Houston, TX 77005, USA;
| | - Ferandre Salatan
- Department of Interventional Radiology, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Boulevard, Houston, TX 77030, USA; (L.T.); (Y.Q.); (F.S.)
| | - Marites P. Melancon
- Department of Interventional Radiology, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Boulevard, Houston, TX 77030, USA; (L.T.); (Y.Q.); (F.S.)
- Graduate School for Biomedical Science, University of Texas Health Science Center at Houston, 6767 Bertner Ave., Houston, TX 77030, USA
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11
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Insua I, Liamas E, Zhang Z, Peacock AFA, Krachler AM, Fernandez-Trillo F. Enzyme-responsive polyion complex (PIC) nanoparticles for the targeted delivery of antimicrobial polymers. Polym Chem 2016; 7:2684-2690. [PMID: 27148427 PMCID: PMC4841106 DOI: 10.1039/c6py00146g] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2016] [Accepted: 03/13/2016] [Indexed: 12/30/2022]
Abstract
Here we present new enzyme-responsive polyion complex (PIC) nanoparticles prepared from antimicrobial poly(ethylene imine) and an anionic enzyme-responsive peptide targeting Pseudomonas aeruginosa's elastase.
Here we present new enzyme-responsive polyion complex (PIC) nanoparticles prepared from antimicrobial poly(ethylene imine) and an anionic enzyme-responsive peptide targeting Pseudomonas aeruginosa's elastase. The synthetic conditions used to prepare these nanomaterials allowed us to optimise particle size and charge, and their stability under physiological conditions. We demonstrate that these enzyme responsive PIC nanoparticles are selectively degraded in the presence of P. aeruginosa elastase without being affected by other endogenous elastases. This enzyme-responsive PIC particle can exert an elastase-specific antimicrobial effect against P. aeruginosa without affecting non-pathogenic strains of these bacteria. These targeted enzyme-responsive PIC nanoparticles constitute a novel platform for the delivery of antimicrobial peptides and polymers, and can be a powerful tool in the current race against antimicrobial resistance.
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Affiliation(s)
- Ignacio Insua
- School of Chemistry , University of Birmingham , B15 2TT Birmingham , UK
| | - Evangelos Liamas
- School of Chemical Engineering , University of Birmingham , B15 2TT Birmingham , UK
| | - Zhenyu Zhang
- School of Chemical Engineering , University of Birmingham , B15 2TT Birmingham , UK
| | - Anna F A Peacock
- School of Chemistry , University of Birmingham , B15 2TT Birmingham , UK
| | - Anne Marie Krachler
- School of Biosciences , University of Birmingham , B15 2TT Birmingham , UK ; Institute of Microbiology and Infection , University of Birmingham , B15 2TT Birmingham , UK .
| | - Francisco Fernandez-Trillo
- School of Chemistry , University of Birmingham , B15 2TT Birmingham , UK ; Institute of Microbiology and Infection , University of Birmingham , B15 2TT Birmingham , UK .
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12
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Zhou J, Wen H, Ke F, Shi D, Brisky AA, Wang N, Zhu L, Qiu X, Liang D. Capsules with a hierarchical shell structure assembled by aminoglycosides and DNA via the kinetic path. Chem Commun (Camb) 2015; 50:9525-8. [PMID: 25011694 DOI: 10.1039/c4cc03508a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Aminoglycosides are capable of expelling water molecules when forming a complex with DNA via electrostatic interaction. The "water-proof" nature of the complex leads to the formation of capsules, which possess hierarchical shell structures with a smooth and rigid outer layer and a viscoelastic inner layer.
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Affiliation(s)
- Jihan Zhou
- Beijing National Laboratory for Molecular Sciences and the Key Laboratory of Polymer Chemistry and Physics of Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, 100871, Beijing, China.
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13
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Zhao M, Zhou J, Su C, Niu L, Liang D, Li B. Complexation behavior of oppositely charged polyelectrolytes: Effect of charge distribution. J Chem Phys 2015; 142:204902. [DOI: 10.1063/1.4921652] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Mingtian Zhao
- School of Physics and Key Laboratory of Functional Polymer Materials of Ministry of Education, Nankai University, Tianjin 300071, China
| | - Jihan Zhou
- Beijing National Laboratory for Molecular Sciences and the Key Laboratory of Polymer Chemistry and Physics of Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Cuicui Su
- Beijing National Laboratory for Molecular Sciences and the Key Laboratory of Polymer Chemistry and Physics of Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Lin Niu
- Beijing National Laboratory for Molecular Sciences and the Key Laboratory of Polymer Chemistry and Physics of Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Dehai Liang
- Beijing National Laboratory for Molecular Sciences and the Key Laboratory of Polymer Chemistry and Physics of Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Baohui Li
- School of Physics and Key Laboratory of Functional Polymer Materials of Ministry of Education, Nankai University, Tianjin 300071, China
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14
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Foster AA, Greco CT, Green MD, Epps TH, Sullivan MO. Light-mediated activation of siRNA Release in diblock copolymer assemblies for controlled gene silencing. Adv Healthc Mater 2015; 4:760-70. [PMID: 25530259 PMCID: PMC4429132 DOI: 10.1002/adhm.201400671] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2014] [Revised: 11/24/2014] [Indexed: 11/08/2022]
Abstract
Controllable release is particularly important for the delivery of small interfering RNA (siRNA), as siRNAs have a high susceptibility to enzymatic degradation if release is premature, yet lack silencing activity if they remain inaccessible within the cytoplasm. To overcome these hurdles, novel and tailorable mPEG-b-poly(5-(3-(amino)propoxy)-2-nitrobenzyl methacrylate) (mPEG-b-P(APNBMA)) diblock copolymers containing light-sensitive o-nitrobenzyl moieties and pendant amines are employed to provide both efficient siRNA binding, via electrostatic and hydrophobic interactions, as well as triggered charge reversal and nucleic acid release. In particular, siRNA/mPEG-b-P(APNBMA)23.6 polyplexes show minimal aggregation in physiological salt and serum, and enhanced resistance to polyanion-induced unpackaging compared to polyethylenimine preparations. Cellular delivery of siRNA/mPEG-b-P(APNBMA)23.6 polyplexes reveals greater than 80% cellular transfection, as well as rapid and widespread cytoplasmic distribution. Additionally, UV irradiation indicates ≈70% reduction in targeted gene expression following siRNA/mPEG-b-P(APNBMA)23.6 polyplex treatment, as compared to 0% reduction in polyplex-treated cells without UV irradiation, and only ≈30% reduction for Lipofectamine-treated cells. The results here highlight the potential of these light-sensitive copolymers with a well-defined on/off switch for applications including cellular patterning for guided cell growth and extension, and cellular microarrays for exploring protein and drug interactions that require enhanced spatiotemporal control of gene activation.
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Affiliation(s)
- Abbygail A. Foster
- Department of Chemical and Biomolecular Engineering, Newark, DE 19716, USA
| | - Chad T. Greco
- Department of Chemical and Biomolecular Engineering, Newark, DE 19716, USA
| | - Matthew D. Green
- Department of Chemical and Biomolecular Engineering, Newark, DE 19716, USA
| | - Thomas H. Epps
- Department of Chemical and Biomolecular Engineering, Newark, DE 19716, USA
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15
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Su C, Zhao M, Zhu Z, Zhou J, Wen H, Yin Y, Deng Y, Qiu D, Li B, Liang D. Effect of Peptide Charge Distribution on the Structure and Kinetics of DNA Complex. Macromolecules 2015. [DOI: 10.1021/ma501901b] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Cuicui Su
- Beijing
National Laboratory for Molecular Sciences and the Key Laboratory
of Polymer Chemistry and Physics of Ministry of Education, College
of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Mingtian Zhao
- School
of Physics and Key Laboratory of Functional Polymer Materials of Ministry
of Education, Nankai University, Tianjin 300071, China
| | - Zhichao Zhu
- Institute
of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Jihan Zhou
- Beijing
National Laboratory for Molecular Sciences and the Key Laboratory
of Polymer Chemistry and Physics of Ministry of Education, College
of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Hao Wen
- Beijing
National Laboratory for Molecular Sciences and the Key Laboratory
of Polymer Chemistry and Physics of Ministry of Education, College
of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Yudan Yin
- Beijing
National Laboratory for Molecular Sciences and the Key Laboratory
of Polymer Chemistry and Physics of Ministry of Education, College
of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Yan Deng
- Beijing
National Laboratory for Molecular Sciences and the Key Laboratory
of Polymer Chemistry and Physics of Ministry of Education, College
of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Dong Qiu
- Institute
of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Baohui Li
- School
of Physics and Key Laboratory of Functional Polymer Materials of Ministry
of Education, Nankai University, Tianjin 300071, China
| | - Dehai Liang
- Beijing
National Laboratory for Molecular Sciences and the Key Laboratory
of Polymer Chemistry and Physics of Ministry of Education, College
of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
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16
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Chiang WL, Hu YC, Liu HY, Hsiao CW, Sureshbabu R, Yang CM, Chung MF, Chia WT, Sung HW. Injectable microbeads with a thermo-responsive shell and a pH-responsive core as a dual-switch-controlled release system. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2014; 10:4100-4105. [PMID: 24976002 DOI: 10.1002/smll.201400842] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2014] [Revised: 05/25/2014] [Indexed: 06/03/2023]
Abstract
Treating inflammation with a dual-switch-controlled release system: The release of a drug from the developed microbead system occurs only in response to both an increase in local temperature and an acidic environmental pH. This dual-switch-controlled release system has the advantages of distinguishing between inflamed and healthy tissues to improve treatment efficacy.
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Affiliation(s)
- Wei-Lun Chiang
- Department of Chemical Engineering, National Tsing Hua University, Hsinchu, Taiwan, 30013, ROC; Institute of Biomedical Engineering, National Tsing Hua University, Hsinchu, Taiwan, 30013, ROC
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17
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Li QL, Gu WX, Gao H, Yang YW. Self-assembly and applications of poly(glycidyl methacrylate)s and their derivatives. Chem Commun (Camb) 2014; 50:13201-15. [DOI: 10.1039/c4cc03036b] [Citation(s) in RCA: 85] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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18
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Wang H, Chen W, Xie H, Wei X, Yin S, Zhou L, Xu X, Zheng S. Biocompatible, chimeric peptide-condensed supramolecular nanoparticles for tumor cell-specific siRNA delivery and gene silencing. Chem Commun (Camb) 2014; 50:7806-9. [PMID: 24903477 DOI: 10.1039/c4cc01061b] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
A practical and tumor cell-specific siRNA delivery system was developedviasingle-step self-assembly of an arginine-rich chimeric peptide with siRNA.
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Affiliation(s)
- Hangxiang Wang
- First Affiliated Hospital
- School of Medicine
- Zhejiang University
- Hangzhou, PR China
| | - Wei Chen
- Zhejiang University School of Medicine
- Hangzhou, PR China
| | - Haiyang Xie
- First Affiliated Hospital
- School of Medicine
- Zhejiang University
- Hangzhou, PR China
| | - Xuyong Wei
- First Affiliated Hospital
- School of Medicine
- Zhejiang University
- Hangzhou, PR China
| | - Shengyong Yin
- First Affiliated Hospital
- School of Medicine
- Zhejiang University
- Hangzhou, PR China
| | - Lin Zhou
- First Affiliated Hospital
- School of Medicine
- Zhejiang University
- Hangzhou, PR China
| | - Xiao Xu
- First Affiliated Hospital
- School of Medicine
- Zhejiang University
- Hangzhou, PR China
| | - Shusen Zheng
- First Affiliated Hospital
- School of Medicine
- Zhejiang University
- Hangzhou, PR China
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19
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Huang X, Dong X, Li X, Meng X, Zhang D, Liu C. Metal–polybenzimidazole complexes as a nonviral gene carrier: Effects of the DNA affinity on gene delivery. J Inorg Biochem 2013; 129:102-11. [DOI: 10.1016/j.jinorgbio.2013.09.009] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2013] [Revised: 09/06/2013] [Accepted: 09/10/2013] [Indexed: 10/26/2022]
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20
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Tran NTD, Jia Z, Truong NP, Cooper MA, Monteiro MJ. Fine Tuning the Disassembly Time of Thermoresponsive Polymer Nanoparticles. Biomacromolecules 2013; 14:3463-71. [DOI: 10.1021/bm4007858] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Nguyen T. D. Tran
- Australian
Institute for Bioengineering and Nanotechnology and ‡Institute for Molecular Biosciences, The University of Queensland, Brisbane QLD 4072, Australia
| | - Zhongfan Jia
- Australian
Institute for Bioengineering and Nanotechnology and ‡Institute for Molecular Biosciences, The University of Queensland, Brisbane QLD 4072, Australia
| | - Nghia P. Truong
- Australian
Institute for Bioengineering and Nanotechnology and ‡Institute for Molecular Biosciences, The University of Queensland, Brisbane QLD 4072, Australia
| | - Matthew A. Cooper
- Australian
Institute for Bioengineering and Nanotechnology and ‡Institute for Molecular Biosciences, The University of Queensland, Brisbane QLD 4072, Australia
| | - Michael J. Monteiro
- Australian
Institute for Bioengineering and Nanotechnology and ‡Institute for Molecular Biosciences, The University of Queensland, Brisbane QLD 4072, Australia
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21
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Tian L, Kang HC, Bae YH. Endosomolytic reducible polymeric electrolytes for cytosolic protein delivery. Biomacromolecules 2013; 14:2570-81. [PMID: 23841591 DOI: 10.1021/bm400337f] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Despite the numerous vital functions of proteins in the cytosolic compartment, less attention has been paid to the delivery of protein drugs to the cytosol than to the plasma membrane. To address this issue and effectively deliver charged proteins into the cytoplasm, we used endosomolytic, thiol-triggered degradable polyelectrolytes as carriers. The cationic, reducible polyelectrolyte RPC-bPEI(0.8 kDa)2 was synthesized by the oxidative polymerization of thiolated branched polyethyleneimine (bPEI). The polymer was converted to the anionic, reducible polyelectrolyte RPA-bPEI(0.8 kDa)2 by introducing carboxylic acids. The two reducible polyelectrolytes (RPC-bPEI(0.8 kDa)2 and RPA-bPEI(0.8 kDa)2) were complexed with counter-charged model proteins (bovine serum albumin (BSA) and lysozyme (LYZ)), forming polyelectrolyte/protein complexes of less than 200 nm in size at weight ratios (WR) of ≥1. The resultant complexes maintained a proton buffering capacity nearly equivalent to that of the polyelectrolytes in the absence of protein complexation and were cytocompatible with MCF7 human breast carcinoma cells. Under cytosol-mimicking thiol-rich conditions, RPC-bPEI(0.8 kDa)2/BSA and RPA-bPEI(0.8 kDa)2/LYZ complexes increased significantly in size and released the loaded protein, unlike the protein complexes with nonreducible polyelectrolytes (bPEI(25 kDa) and bPEI(25 kDa)COOH). The polyelectrolyte/protein complexes showed cellular uptake similar to that of the corresponding proteins alone, but the former allowed more protein to escape into the cytosol from endolysosomes than the latter as a result of the endosomolytic function of the polyelectrolytes. In addition, the proteins in the polyelectrolyte/protein complexes kept their intrinsic secondary structures. In conclusion, the results show the potential of the designed endosomolytic, reducible polyelectrolytes for the delivery of proteins to the cytosol.
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Affiliation(s)
- Li Tian
- Department of Pharmaceutics and Pharmaceutical Chemistry, The University of Utah, Salt Lake City, 84112, USA
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22
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Temperature-responsive cationic block copolymers as nanocarriers for gene delivery. Int J Pharm 2013; 448:105-14. [DOI: 10.1016/j.ijpharm.2013.03.028] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2013] [Revised: 03/11/2013] [Accepted: 03/13/2013] [Indexed: 12/12/2022]
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23
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Sobolčiak P, Špírek M, Katrlík J, Gemeiner P, Lacík I, Kasák P. Light-Switchable Polymer from Cationic to Zwitterionic Form: Synthesis, Characterization, and Interactions with DNA and Bacterial Cells. Macromol Rapid Commun 2013; 34:635-9. [DOI: 10.1002/marc.201200823] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2012] [Revised: 01/21/2013] [Indexed: 11/06/2022]
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24
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Tran NTD, Truong NP, Gu W, Jia Z, Cooper MA, Monteiro MJ. Timed-Release Polymer Nanoparticles. Biomacromolecules 2013; 14:495-502. [DOI: 10.1021/bm301721k] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Nguyen T. D. Tran
- Australian
Institute for Bioengineering and Nanotechnology and ‡Institute for Molecular Biosciences, The University of Queensland, Brisbane
QLD 4072, Australia
| | - Nghia P. Truong
- Australian
Institute for Bioengineering and Nanotechnology and ‡Institute for Molecular Biosciences, The University of Queensland, Brisbane
QLD 4072, Australia
| | - Wenyi Gu
- Australian
Institute for Bioengineering and Nanotechnology and ‡Institute for Molecular Biosciences, The University of Queensland, Brisbane
QLD 4072, Australia
| | - Zhongfan Jia
- Australian
Institute for Bioengineering and Nanotechnology and ‡Institute for Molecular Biosciences, The University of Queensland, Brisbane
QLD 4072, Australia
| | - Matthew A Cooper
- Australian
Institute for Bioengineering and Nanotechnology and ‡Institute for Molecular Biosciences, The University of Queensland, Brisbane
QLD 4072, Australia
| | - Michael J. Monteiro
- Australian
Institute for Bioengineering and Nanotechnology and ‡Institute for Molecular Biosciences, The University of Queensland, Brisbane
QLD 4072, Australia
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25
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Bertin A. Polyelectrolyte Complexes of DNA and Polycations as Gene Delivery Vectors. ADVANCES IN POLYMER SCIENCE 2013. [DOI: 10.1007/12_2013_218] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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26
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27
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The effect of a nuclear localization sequence on transfection efficacy of genes delivered by cobalt(II)–polybenzimidazole complexes. Biomaterials 2012; 33:7884-94. [DOI: 10.1016/j.biomaterials.2012.07.017] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2012] [Accepted: 07/08/2012] [Indexed: 01/08/2023]
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28
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Bhat SS, Kumbhar AS, Kumbhar AA, Khan A. Efficient DNA Condensation Induced by Ruthenium(II) Complexes of a Bipyridine-Functionalized Molecular Clip Ligand. Chemistry 2012; 18:16383-92. [DOI: 10.1002/chem.201200407] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2012] [Revised: 06/28/2012] [Indexed: 12/16/2022]
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29
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González-Aramundiz JV, Lozano MV, Sousa-Herves A, Fernandez-Megia E, Csaba N. Polypeptides and polyaminoacids in drug delivery. Expert Opin Drug Deliv 2012; 9:183-201. [DOI: 10.1517/17425247.2012.647906] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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30
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Müller M. Sizing, Shaping and Pharmaceutical Applications of Polyelectrolyte Complex Nanoparticles. ADVANCES IN POLYMER SCIENCE 2012. [DOI: 10.1007/12_2012_170] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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31
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Albuzat T, Keil M, Ellis J, Alexander C, Wenz G. Transfection of luciferase DNA into various cells by cationic cyclodextrin polyrotaxanes derived from ionene-11. ACTA ACUST UNITED AC 2012. [DOI: 10.1039/c2jm16425f] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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32
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Luo YL, Shiao YS, Huang YF. Release of photoactivatable drugs from plasmonic nanoparticles for targeted cancer therapy. ACS NANO 2011; 5:7796-804. [PMID: 21942498 DOI: 10.1021/nn201592s] [Citation(s) in RCA: 132] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Chemotherapy is an important modality in cancer treatment. The major challenges of recent works are to improve drug loading, increase selectivity to target cells, and control the precise release of drugs. In the present study, we devised a smart drug carrier, an aptamer/hairpin DNA-gold nanoparticle (apt/hp-Au NP) conjugate for targeted delivery of drugs. The DNA aptamer sgc8c, which possesses strong affinity for protein tyrosine kinase 7 (PTK7), abundantly expressed on the surface of CCRF-CEM (T-cell acute lymphoblastic leukemia) cells, was assembled onto the surface of Au NPs. The repeated d(CGATCG) sequence within the hpDNA on the Au NP surface was used for the loading of the anticancer drug doxorubicin (Dox). After optimization, 25 (±3) sgc8c and 305 (±9) Dox molecules were successfully loaded onto the AuNP (13 nm) surface. The binding capability of apt/hp-Au NP conjugates toward targeted cells was investigated by flow cytometry and atomic absorption spectroscopy, which showed that the aptamer-functionalized nanoconjugates were selective for targeting of cancer cells. A cell toxicity (3-(4,5-dimethylthiazol-2-yl)-5-(3-carboxymethoxyphenyl)-2-(4-sulfophenyl)-2H-tetrazolium, MTT) assay also demonstrated that these drug-loaded nanoconjugates could kill targeted cancer cells more effectively than nontargeted (control) cells. Most importantly, when illuminated with plasmon-resonant light (532 nm), Dox:nanoconjugates displayed enhanced antitumor efficacy with few side effects. The marked release of Dox from these nanoconjugates in living cells was monitored by increasing fluorescence signals upon light exposure. In vitro studies confirmed that aptamer-functionalized hp-Au NPs can be used as carriers for targeted delivery of drugs with remote control capability by laser irradiation with high spatial/temporal resolution.
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Affiliation(s)
- Yun-Ling Luo
- Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, Hsinchu, Taiwan, Republic of China
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33
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Light and host–guest inclusion mediated salmon sperm DNA/surfactant interactions. J Colloid Interface Sci 2011; 362:430-8. [DOI: 10.1016/j.jcis.2011.06.083] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2011] [Revised: 06/29/2011] [Accepted: 06/30/2011] [Indexed: 11/22/2022]
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34
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Zhang R, Wang Y, Du FS, Wang YL, Tan YX, Ji SP, Li ZC. Thermoresponsive Gene Carriers Based on Polyethylenimine-graft-
Poly[oligo(ethylene glycol) methacrylate]. Macromol Biosci 2011; 11:1393-406. [DOI: 10.1002/mabi.201100094] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2011] [Revised: 05/17/2011] [Indexed: 11/12/2022]
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35
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Sultan Y, DeRosa MC. Target binding influences permeability in aptamer-polyelectrolyte microcapsules. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2011; 7:1219-1226. [PMID: 21485004 DOI: 10.1002/smll.201001829] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2010] [Revised: 12/21/2010] [Indexed: 05/30/2023]
Abstract
Aptamer-polyelectrolyte microcapsules are prepared for potential use as triggered delivery vehicles and microreactors. The hollow microcapsules are prepared from the sulforhodamine B aptamer and the polyelectrolytes poly(allylamine hydrochloride) and poly(sodium 4-styrene-sulfonate), using layer-by-layer (LbL) film deposition templated on a sacrificial CaCO(3) spherical core. Scanning electron microscopy and confocal microscopy confirm the formation of spherical CaCO(3) cores and LbL-aptamer microcapsules. Colocalization studies with fluorescently-tagged aptamer and sulforhodamine B verify the ability of the aptamer to recognize its cognate target in the presence of the K(+) ions that are required for its characteristic G-quadruplex formation. Fluorescence recovery after photobleaching studies confirms a significant difference in the permeability of the aptamer-polyelectrolyte microcapsules for the sulforhodamine B dye target compared to control microcapsules prepared with a random oligonucleotide. These results suggest that aptamer-based 'smart' responsive films and microcapsules could be applied to problems of catalysis and controlled release.
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Affiliation(s)
- Yasir Sultan
- Department of Chemistry, Carleton University, 1125 Colonel By Drive, Ottawa, ON, Canada
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36
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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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37
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Xu CH, Sui MH, Tang JB, Shen YQ. What can we learn from virus in designing nonviral gene vectors. CHINESE JOURNAL OF POLYMER SCIENCE 2011. [DOI: 10.1007/s10118-011-1047-5] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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38
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Huang H, Yu Q, Peng X, Ye Z. Mesoporous protein thin films for molecule delivery. ACTA ACUST UNITED AC 2011. [DOI: 10.1039/c1jm11090j] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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39
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Meng X, Liu L, Zhang H, Luo Y, Liu C. Tris(benzimidazolyl)amine-Cu(ii) coordination units bridged by carboxylates: structures and DNA-condensing property. Dalton Trans 2011; 40:12846-55. [DOI: 10.1039/c1dt10695c] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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40
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Thiele C, Auerbach D, Jung G, Qiong L, Schneider M, Wenz G. Nanoparticles of anionic starch and cationic cyclodextrin derivatives for the targeted delivery of drugs. Polym Chem 2011. [DOI: 10.1039/c0py00241k] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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