401
|
Kasprzak A, Popławska M, Bystrzejewski M, Łabędź O, Grudziński IP. Conjugation of polyethylenimine and its derivatives to carbon-encapsulated iron nanoparticles. RSC Adv 2015. [DOI: 10.1039/c5ra17912b] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Polyethylenimine and its pre-synthesized derivatives were conjugated to carbon-encapsulated iron nanoparticles.
Collapse
Affiliation(s)
- Artur Kasprzak
- Faculty of Chemistry
- Warsaw University of Technology
- 00-664 Warsaw
- Poland
| | | | | | - Olga Łabędź
- Faculty of Chemistry
- University of Warsaw
- 02-093 Warsaw
- Poland
| | | |
Collapse
|
402
|
K J, Naskar D, Kundu SC, James NR. Fabrication of cationized gelatin nanofibers by electrospinning for tissue regeneration. RSC Adv 2015. [DOI: 10.1039/c5ra10384c] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A green fabrication approach has been developed to produce biocompatible and non-cytotoxic cationically modified gelatin nanofibers with enhanced biological performance.
Collapse
Affiliation(s)
- Jalaja K
- Department of Chemistry
- Indian Institute of Space Science and Technology
- Thiruvananthapuram-695 547
- India
| | - Deboki Naskar
- Department of Biotechnology
- Indian Institute of Technology Kharagpur
- India
| | - Subhas C. Kundu
- Department of Biotechnology
- Indian Institute of Technology Kharagpur
- India
| | - Nirmala Rachel James
- Department of Chemistry
- Indian Institute of Space Science and Technology
- Thiruvananthapuram-695 547
- India
| |
Collapse
|
403
|
Rinkenauer AC, Schubert S, Traeger A, Schubert US. The influence of polymer architecture on in vitro pDNA transfection. J Mater Chem B 2015; 3:7477-7493. [DOI: 10.1039/c5tb00782h] [Citation(s) in RCA: 58] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
In the field of polymer-based gene delivery, the tuning potential of polymers by using different architectures like graft- and star-shaped polymers as well as self-assembled block copolymers is immense. In the last years numerous new polymer designs showed enhanced transfections properties in combination with a good biocompatibility.
Collapse
Affiliation(s)
- Alexandra C. Rinkenauer
- Laboratory of Organic and Macromolecular Chemistry (IOMC)
- Friedrich Schiller University Jena
- 07743 Jena
- Germany
- Jena Center for Soft Matter (JCSM)
| | - Stephanie Schubert
- Jena Center for Soft Matter (JCSM)
- Friedrich Schiller University Jena
- 07743 Jena
- Germany
- Institute of Pharmacy
| | - Anja Traeger
- Laboratory of Organic and Macromolecular Chemistry (IOMC)
- Friedrich Schiller University Jena
- 07743 Jena
- Germany
- Jena Center for Soft Matter (JCSM)
| | - Ulrich S. Schubert
- Laboratory of Organic and Macromolecular Chemistry (IOMC)
- Friedrich Schiller University Jena
- 07743 Jena
- Germany
- Jena Center for Soft Matter (JCSM)
| |
Collapse
|
404
|
Yang K, Li S, Jin S, Xue X, Zhang T, Zhang C, Xu J, Liang XJ. Micelle-like luminescent nanoparticles as a visible gene delivery system with reduced toxicity. J Mater Chem B 2015; 3:8394-8400. [DOI: 10.1039/c5tb01225b] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Luminescent nanoparticles (TPEI) were synthesized to tackle the undesired cytotoxicity of cationic polymers and were also used for visible gene transfection.
Collapse
Affiliation(s)
- Keni Yang
- CAS Key Laboratory for Biological Effects of Nanomaterials & Nanosafety
- National Center for Nanoscience and Technology
- Zhongguancun
- China
- State Key Laboratory of Natural Medicines
| | - Shengliang Li
- CAS Key Laboratory for Biological Effects of Nanomaterials & Nanosafety
- National Center for Nanoscience and Technology
- Zhongguancun
- China
| | - Shubin Jin
- CAS Key Laboratory for Biological Effects of Nanomaterials & Nanosafety
- National Center for Nanoscience and Technology
- Zhongguancun
- China
| | - Xiangdong Xue
- CAS Key Laboratory for Biological Effects of Nanomaterials & Nanosafety
- National Center for Nanoscience and Technology
- Zhongguancun
- China
| | - Tingbin Zhang
- CAS Key Laboratory for Biological Effects of Nanomaterials & Nanosafety
- National Center for Nanoscience and Technology
- Zhongguancun
- China
| | - Chunqiu Zhang
- CAS Key Laboratory for Biological Effects of Nanomaterials & Nanosafety
- National Center for Nanoscience and Technology
- Zhongguancun
- China
| | - Jing Xu
- CAS Key Laboratory for Biological Effects of Nanomaterials & Nanosafety
- National Center for Nanoscience and Technology
- Zhongguancun
- China
| | - Xing-Jie Liang
- CAS Key Laboratory for Biological Effects of Nanomaterials & Nanosafety
- National Center for Nanoscience and Technology
- Zhongguancun
- China
| |
Collapse
|
405
|
Bekale L, Agudelo D, Tajmir-Riahi H. Effect of polymer molecular weight on chitosan–protein interaction. Colloids Surf B Biointerfaces 2015; 125:309-17. [DOI: 10.1016/j.colsurfb.2014.11.037] [Citation(s) in RCA: 147] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2014] [Revised: 11/18/2014] [Accepted: 11/24/2014] [Indexed: 12/17/2022]
|
406
|
Thyriyalakshmi P, Radha KV. Synthesis of dimethyl carbonate (DMC) based biodegradable nitrogen mustard ionic carbonate (NMIC) nanoparticles. RSC Adv 2015. [DOI: 10.1039/c4ra13290d] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Nitrogen mustard ionic carbonate with stable carbonate moiety was synthesized and cross-linked with the biopolymer chitosan. Subsequently, nanoparticles of cross linked chitosan were prepared for wound healing application.
Collapse
Affiliation(s)
- P. Thyriyalakshmi
- Bio-Products Laboratory, Department of Chemical Engineering
- A.C. Tech
- Anna University
- Chennai-25
- India
| | - K. V. Radha
- Bio-Products Laboratory, Department of Chemical Engineering
- A.C. Tech
- Anna University
- Chennai-25
- India
| |
Collapse
|
407
|
Wang Y, Santos A, Evdokiou A, Losic D. An overview of nanotoxicity and nanomedicine research: principles, progress and implications for cancer therapy. J Mater Chem B 2015; 3:7153-7172. [DOI: 10.1039/c5tb00956a] [Citation(s) in RCA: 88] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
The studies of nanomaterial-based drug delivery and nanotoxicity are closely interconnected.
Collapse
Affiliation(s)
- Ye Wang
- School of Chemical Engineering
- The University of Adelaide
- 5005 Adelaide
- Australia
- School of Medicine
| | - Abel Santos
- School of Chemical Engineering
- The University of Adelaide
- 5005 Adelaide
- Australia
| | - Andreas Evdokiou
- School of Medicine
- Discipline of Surgery
- The University of Adelaide
- Australia
| | - Dusan Losic
- School of Chemical Engineering
- The University of Adelaide
- 5005 Adelaide
- Australia
| |
Collapse
|
408
|
Zou H, Yuan W. Temperature- and redox-responsive magnetic complex micelles for controlled drug release. J Mater Chem B 2015; 3:260-269. [DOI: 10.1039/c4tb01518e] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
PCL-SS-PDMAEMA/Fe3O4 magnetic complex micelles can present dual temperature- and redox-responses, magnetism and magnetothermal properties.
Collapse
Affiliation(s)
- Hui Zou
- Institute of Nano and Bio-polymeric Materials
- School of Materials Science and Engineering
- Tongji University
- Shanghai 201804
- People's Republic of China
| | - Weizhong Yuan
- Institute of Nano and Bio-polymeric Materials
- School of Materials Science and Engineering
- Tongji University
- Shanghai 201804
- People's Republic of China
| |
Collapse
|
409
|
Maximilien J, Beyazit S, Rossi C, Haupt K, Tse Sum Bui B. Nanoparticles in Biomedical Applications. MEASURING BIOLOGICAL IMPACTS OF NANOMATERIALS 2015. [DOI: 10.1007/11663_2015_12] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
|
410
|
Bartolami E, Bessin Y, Bettache N, Gary-Bobo M, Garcia M, Dumy P, Ulrich S. Multivalent DNA recognition by self-assembled clusters: deciphering structural effects by fragments screening and evaluation as siRNA vectors. Org Biomol Chem 2015; 13:9427-38. [DOI: 10.1039/c5ob01404b] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Fragment self-assembly was used for producing clusters with a variety of scaffolds and ligands, and an effective siRNA vector was identified.
Collapse
Affiliation(s)
- Eline Bartolami
- Institut des Biomolécules Max Mousseron (IBMM)
- UMR 5247
- CNRS
- Université Montpellier
- ENSCM
| | - Yannick Bessin
- Institut des Biomolécules Max Mousseron (IBMM)
- UMR 5247
- CNRS
- Université Montpellier
- ENSCM
| | - Nadir Bettache
- Institut des Biomolécules Max Mousseron (IBMM)
- UMR 5247
- CNRS
- Université Montpellier
- ENSCM
| | - Magali Gary-Bobo
- Institut des Biomolécules Max Mousseron (IBMM)
- UMR 5247
- CNRS
- Université Montpellier
- ENSCM
| | - Marcel Garcia
- Institut des Biomolécules Max Mousseron (IBMM)
- UMR 5247
- CNRS
- Université Montpellier
- ENSCM
| | - Pascal Dumy
- Institut des Biomolécules Max Mousseron (IBMM)
- UMR 5247
- CNRS
- Université Montpellier
- ENSCM
| | - Sébastien Ulrich
- Institut des Biomolécules Max Mousseron (IBMM)
- UMR 5247
- CNRS
- Université Montpellier
- ENSCM
| |
Collapse
|
411
|
Zhang T, Song X, Kang D, Zhang L, Zhang C, Jin S, Wang C, Tian J, Xing J, Liang XJ. Modified bovine serum albumin as an effective charge-reversal platform for simultaneously improving the transfection efficiency and biocompatibility of polyplexes. J Mater Chem B 2015; 3:4698-4706. [DOI: 10.1039/c5tb00548e] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
|
412
|
Zheng JY, Tan MJ, Thoniyot P, Loh XJ. Unusual thermogelling behaviour of poly[2-(dimethylamino)ethyl methacrylate] (PDMAEMA)-based polymers polymerized in bulk. RSC Adv 2015. [DOI: 10.1039/c5ra12816a] [Citation(s) in RCA: 57] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
The bulk synthesis of (PDMAEMA)-based polymers and their unusual thermoreversible gelation in aqueous solutions are described.
Collapse
Affiliation(s)
- Jason Yujie Zheng
- Department of Materials Science and Engineering
- National University of Singapore
- Singapore 117576
- Singapore
| | - Mein Jin Tan
- Institute of Materials Research and Engineering (IMRE)
- Singapore 117602
- Singapore
| | - Praveen Thoniyot
- Institute of Materials Research and Engineering (IMRE)
- Singapore 117602
- Singapore
| | - Xian Jun Loh
- Department of Materials Science and Engineering
- National University of Singapore
- Singapore 117576
- Singapore
- Institute of Materials Research and Engineering (IMRE)
| |
Collapse
|
413
|
Zheng X, Zhang T, Song X, Zhang L, Zhang C, Jin S, Xing J, Liang XJ. Structural impact of graft and block copolymers based on poly(N-vinylpyrrolidone) and poly(2-dimethylaminoethyl methacrylate) in gene delivery. J Mater Chem B 2015; 3:4027-4035. [DOI: 10.1039/c4tb01956c] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
The characteristics of graft and block copolymers based on PVP and PDMAEMA in pDNA compaction, cytotoxicity, transfection efficiency, internalization and intracellular distribution were systematically investigated.
Collapse
Affiliation(s)
- Xiang Zheng
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin
- China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)
| | - Tingbin Zhang
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin
- China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)
| | - Xiaoyan Song
- College of Material Science and Engineering
- Tianjin Polytechnic University
- Tianjin
- China
| | - Ling Zhang
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin
- China
| | - Chunqiu Zhang
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety
- National Center for Nanoscience and Technology of China
- Beijing
- China
| | - Shubin Jin
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety
- National Center for Nanoscience and Technology of China
- Beijing
- China
| | - Jinfeng Xing
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin
- China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)
| | - Xing-Jie Liang
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety
- National Center for Nanoscience and Technology of China
- Beijing
- China
| |
Collapse
|
414
|
Cao D, Tian S, Huang H, Chen J, Pan S. Divalent folate modification on PEG: an effective strategy for improving the cellular uptake and targetability of PEGylated polyamidoamine-polyethylenimine copolymer. Mol Pharm 2014; 12:240-52. [PMID: 25514347 DOI: 10.1021/mp500572v] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The stability and targeting ability of nanocarrier gene delivery systems are necessary conditions to ensure the good therapeutic effect and low nonspecific toxicity of cancer treatment. Poly(ethylene glycol) (PEG) has been widely applied for improving stability and as a spacer for linking ligands and nanocarriers to improve targetability. However, the cellular uptake and endosomal escape capacity of nanocarriers has been seriously harmed due to the introduction of PEG. In the present study, we synthesized a new gene delivery vector by coupling divalent folate-PEG (PEG3.4k-FA2) onto polyamidoamine-polyethylenimine (PME) copolymer (PME-(PEG3.4k-FA2)1.72). Both PEG and monovalent folate-PEG (PEG3.4k-FA1) modified PME were prepared as control polymers, which were named as PME-(PEG3.5k)1.69 and PME-(PEG3.4k-FA1)1.66, respectively. PME-(PEG3.4k-FA2)1.72 exhibited strong DNA condensation capacity like parent polymer PME which was not significantly influenced by PEG. PME-(PEG3.4k-FA2)1.72/DNA complexes at N/P = 10 had a diameter ∼143 nm and zeta potential ∼13 mV and showed the lowest cytotoxicity and hemolysis and the highest transfection efficiency among all tested polymers. In folate receptor positive (FR-positive) cells, the cellular uptake and transfection efficiency were increased with the increase in the number of folates coupled on PEG; the order was PME-(PEG3.4k-FA2)1.72 > PME-(PEG3.4k-FA1)1.66 > PME-(PEG3.5k)1.69. Folate competition assays showed that PME-(PEG3.4k-FA2)1.72 complexes had stronger targeting ability than PME-(PEG3.5k)1.69 and PME-(PEG3.4k-FA1)1.66 complexes due to their higher folate density per PEG molecule. Cellular uptake mechanism study showed that the folate density on PEG could change the endocytosis pathway of PME-(PEG3.5k)1.69 from clathrin-mediated endocytosis to caveolae-mediated endocytosis, leading to less lysosomal degradation. Distribution and uptake in 3D multicellular spheroid assays showed that divalent folate could offer PME-(PEG3.4k-FA2)1.72 complexes stronger penetrating ability and higher cellular uptake. With these advantages, PME-(PEG3.4k-FA2)1.72 may be a promising nonviral vector candidate for efficient gene delivery. This study also indicates that divalent folate modification on PEG can serve as an efficient strategy to improve the cellular uptake and targeting ability of PEGylated cationic polymers for gene delivery.
Collapse
Affiliation(s)
- Duanwen Cao
- Department of Pharmaceutical Science, Nanfang Hospital, Southern Medical University , Guangzhou 510515, P. R. China
| | | | | | | | | |
Collapse
|
415
|
|
416
|
Monteiro N, Martins A, Reis RL, Neves NM. Liposomes in tissue engineering and regenerative medicine. J R Soc Interface 2014; 11:20140459. [PMID: 25401172 PMCID: PMC4223894 DOI: 10.1098/rsif.2014.0459] [Citation(s) in RCA: 211] [Impact Index Per Article: 21.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2014] [Accepted: 10/02/2014] [Indexed: 01/13/2023] Open
Abstract
Liposomes are vesicular structures made of lipids that are formed in aqueous solutions. Structurally, they resemble the lipid membrane of living cells. Therefore, they have been widely investigated, since the 1960s, as models to study the cell membrane, and as carriers for protection and/or delivery of bioactive agents. They have been used in different areas of research including vaccines, imaging, applications in cosmetics and tissue engineering. Tissue engineering is defined as a strategy for promoting the regeneration of tissues for the human body. This strategy may involve the coordinated application of defined cell types with structured biomaterial scaffolds to produce living structures. To create a new tissue, based on this strategy, a controlled stimulation of cultured cells is needed, through a systematic combination of bioactive agents and mechanical signals. In this review, we highlight the potential role of liposomes as a platform for the sustained and local delivery of bioactive agents for tissue engineering and regenerative medicine approaches.
Collapse
Affiliation(s)
- Nelson Monteiro
- 3B's Research Group—Biomaterials, Biodegradables and Biomimetics Department of Polymer Engineering, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Zona Industrial da Gandra S. Cláudio do Barco, 4806-909, Caldas das Taipas, Guimarães, Portugal
- ICVS/3B's, PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Albino Martins
- 3B's Research Group—Biomaterials, Biodegradables and Biomimetics Department of Polymer Engineering, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Zona Industrial da Gandra S. Cláudio do Barco, 4806-909, Caldas das Taipas, Guimarães, Portugal
- ICVS/3B's, PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Rui L. Reis
- 3B's Research Group—Biomaterials, Biodegradables and Biomimetics Department of Polymer Engineering, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Zona Industrial da Gandra S. Cláudio do Barco, 4806-909, Caldas das Taipas, Guimarães, Portugal
- ICVS/3B's, PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Nuno M. Neves
- 3B's Research Group—Biomaterials, Biodegradables and Biomimetics Department of Polymer Engineering, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Zona Industrial da Gandra S. Cláudio do Barco, 4806-909, Caldas das Taipas, Guimarães, Portugal
- ICVS/3B's, PT Government Associate Laboratory, Braga/Guimarães, Portugal
| |
Collapse
|
417
|
Hosseinkhani H, Abedini F, Ou KL, Domb AJ. Polymers in gene therapy technology. POLYM ADVAN TECHNOL 2014. [DOI: 10.1002/pat.3432] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Hossein Hosseinkhani
- Graduate Institute of Biomedical Engineering; National Taiwan University of Science and Technology (Taiwan Tech); Taipei 10607 Taiwan
- Center of Excellence in Nanomedicine; National Taiwan University of Science and Technology (Taiwan Tech); Taipei 10607 Taiwan
- Research Center for Biomedical Devices and Prototyping Production, Research Center for Biomedical Implants and Microsurgery Devices, Graduate Institute of Biomedical Materials and Tissue Engineering, College of Oral Medicine, Taipei Medical University, Department of Dentistry; Taipei Medical University-Shuang Ho Hospital; Taipei 235 Taiwan
| | - Fatemeh Abedini
- Razi Vaccine and Serum Research Institute; Karaj Alborz IRAN
| | - Keng-Liang Ou
- Research Center for Biomedical Devices and Prototyping Production, Research Center for Biomedical Implants and Microsurgery Devices, Graduate Institute of Biomedical Materials and Tissue Engineering, College of Oral Medicine, Taipei Medical University, Department of Dentistry; Taipei Medical University-Shuang Ho Hospital; Taipei 235 Taiwan
| | - Abraham J. Domb
- Institute of Drug Research, The Center for Nanoscience and Nanotechnology, School of Pharmacy-Faculty of Medicine; The Hebrew University of Jerusalem; Jerusalem 91120 Israel
| |
Collapse
|
418
|
Jain A, Duvvuri LS, Farah S, Beyth N, Domb AJ, Khan W. Antimicrobial polymers. Adv Healthc Mater 2014; 3:1969-85. [PMID: 25408272 DOI: 10.1002/adhm.201400418] [Citation(s) in RCA: 226] [Impact Index Per Article: 22.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2014] [Revised: 10/03/2014] [Indexed: 11/07/2022]
Abstract
Better health is basic requirement of human being, but the rapid growth of harmful pathogens and their serious health effects pose a significant challenge to modern science. Infections by pathogenic microorganisms are of great concern in many fields such as medical devices, drugs, hospital surfaces/furniture, dental restoration, surgery equipment, health care products, and hygienic applications (e.g., water purification systems, textiles, food packaging and storage, major or domestic appliances etc.) Antimicrobial polymers are the materials having the capability to kill/inhibit the growth of microbes on their surface or surrounding environment. Recently, they gained considerable interest for both academic research and industry and were found to be better than their small molecular counterparts in terms of enhanced efficacy, reduced toxicity, minimized environmental problems, resistance, and prolonged lifetime. Hence, efforts have focused on the development of antimicrobial polymers with all desired characters for optimum activity. In this Review, an overview of different antimicrobial polymers, their mechanism of action, factors affecting antimicrobial activity, and application in various fields are given. Recent advances and the current clinical status of these polymers are also discussed.
Collapse
Affiliation(s)
- Anjali Jain
- Department of Pharmaceutics; National Institute of Pharmaceutical Education and Research (NIPER); Hyderabad 500037 India
| | - L. Sailaja Duvvuri
- Department of Pharmaceutics; National Institute of Pharmaceutical Education and Research (NIPER); Hyderabad 500037 India
| | - Shady Farah
- School of Pharmacy-Faculty of Medicine; The Hebrew University of Jerusalem and Jerusalem College of Engineering (JCE); Jerusalem 91120 Israel
| | - Nurit Beyth
- Department of Prosthodontics, Faculty of Dentistry; The Hebrew University-Hadassah Jerusalem; 91120 Israel
| | - Abraham J. Domb
- School of Pharmacy-Faculty of Medicine; The Hebrew University of Jerusalem and Jerusalem College of Engineering (JCE); Jerusalem 91120 Israel
| | - Wahid Khan
- Department of Pharmaceutics; National Institute of Pharmaceutical Education and Research (NIPER); Hyderabad 500037 India
| |
Collapse
|
419
|
Jain A, Muntimadugu E, Domb AJ, Khan W. Cationic Polysaccharides in Gene Delivery. CATIONIC POLYMERS IN REGENERATIVE MEDICINE 2014. [DOI: 10.1039/9781782620105-00228] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
Approval of Glybera®, a gene therapy to treat lipoprotein lipase deficiency, by the European Union Marketing Authorization, and more than 1800 clinical trials in over 31 countries for the treatment of many incurable diseases, narrates the successful journey of gene therapy in the biomedical field. However, the undesired side effects of gene therapy using viral and other vectors have overshadowed the success story of gene therapy. Non-viral vectors, and more particularly cationic polysaccharides due to their non-toxicity, water solubility, biodegradability and excellent compatibility with body systems, provide an excellent alternative for gene delivery. This chapter highlights significant contributions made by cationic polysaccharides in gene delivery.
Collapse
Affiliation(s)
- Anjali Jain
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research Hyderabad India 500037
| | - Eameema Muntimadugu
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research Hyderabad India 500037
| | - Abraham J. Domb
- School of Pharmacy, Faculty of Medicine, The Hebrew University of Jerusalem Jerusalem Israel 91120
| | - Wahid Khan
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research Hyderabad India 500037
- School of Pharmacy, Faculty of Medicine, The Hebrew University of Jerusalem Jerusalem Israel 91120
| |
Collapse
|
420
|
Dai S. Natural Cationic Polymers for Advanced Gene and Drug Delivery. CATIONIC POLYMERS IN REGENERATIVE MEDICINE 2014. [DOI: 10.1039/9781782620105-00557] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
Gene and drug delivery is becoming more and more important in the treatment of complicated human diseases. Proper gene/drug delivery systems can effectively enhance therapeutic efficiency and minimize various side-effects. To date, a variety of delivery systems have been developed. Different from synthetic materials, natural polymers are abundant in nature, renewable, non-toxic, biocompatible and biodegradable. Owing to the presence of positive charges, natural cationic polymers have found important applications in many biological fields, such as drug/gene delivery and tissue engineering. In gene delivery, natural cationic polymers can condense nucleic acids, protect them from degradation, lower the immunogenicity and improve overall transfection efficiency. In drug delivery, cationic functional groups can alter the amphiphilic properties of the polymers to ensure their suitable applications for delivering hydrophobic or protein drugs. After simple chemical modification, the derivatives of natural cationic polymers show improved performance as functional delivery carriers. In this chapter, details on the chemical modification of natural cationic polymers and their applications in gene/drug delivery is discussed.
Collapse
Affiliation(s)
- Sheng Dai
- School of Chemical Engineering, University of Adelaide Australia
| |
Collapse
|
421
|
Piao Y, Chen B. Self-assembled graphene oxide-gelatin nanocomposite hydrogels: Characterization, formation mechanisms, and pH-sensitive drug release behavior. ACTA ACUST UNITED AC 2014. [DOI: 10.1002/polb.23636] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Yongzhe Piao
- Department of Materials Science and Engineering; University of Sheffield; Mappin Street Sheffield S1 3JD United Kingdom
| | - Biqiong Chen
- Department of Materials Science and Engineering; University of Sheffield; Mappin Street Sheffield S1 3JD United Kingdom
| |
Collapse
|
422
|
Borna H, Imani S, Iman M, Azimzadeh Jamalkandi S. Therapeutic face of RNAi: in vivo challenges. Expert Opin Biol Ther 2014; 15:269-85. [PMID: 25399911 DOI: 10.1517/14712598.2015.983070] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
INTRODUCTION RNA interference is a sequence-specific gene silencing phenomenon in which small interfering RNAs (siRNAs) can trigger gene transcriptional and post-transcriptional silencing. This phenomenon represents an emerging therapeutic approach for in vivo studies by efficient delivery of specific synthetic siRNAs against diseases. Therefore, simultaneous development of synthetic siRNAs along with novel delivery techniques is considered as novel and interesting therapeutic challenges. AREAS COVERED This review provides a basic explanation to siRNA signaling pathways and their therapeutic challenges. Here, we provide a comprehensive explanation to failed and successful trials and their in vivo challenges. EXPERT OPINION Specific, efficient and targeted delivery of siRNAs is the major concern for their in vivo administrations. Also, anatomical barriers, drug stability and availability, immunoreactivity and existence of various delivery routes, different genetic backgrounds are major clinical challenges. However, successful administration of siRNA-based drugs is expected during foreseeable features. But, their systemic applications will depend on strong targeted drug delivery strategies.
Collapse
Affiliation(s)
- Hojat Borna
- Baqiyatallah University of Medical Sciences, Chemical Injuries Research Center , Tehran , Iran
| | | | | | | |
Collapse
|
423
|
Xue Y, Wei D, Zheng A, Guan Y, Xiao H. Study of Stimuli-Sensitivities of Amphiphilic Modified Star Poly[N,N-(Dimethylamino)ethyl Methacrylate] and Its Ability of DNA Complexation. JOURNAL OF MACROMOLECULAR SCIENCE PART A-PURE AND APPLIED CHEMISTRY 2014. [DOI: 10.1080/10601325.2014.953374] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
|
424
|
MOHAMED RIHAMR, SEOUDI RANIAS, SABAA MAGDYW. Synthesis and Characterization of Cross-linked Polyethylene Glycol/Carboxymethyl Chitosan Hydrogels. ADVANCES IN POLYMER TECHNOLOGY 2014. [DOI: 10.1002/adv.21479] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- RIHAM R. MOHAMED
- Department of Chemistry; Faculty of Science; Cairo University; Giza Egypt
| | - RANIA S. SEOUDI
- Department of Chemistry; Faculty of Science; Cairo University; Giza Egypt
| | - MAGDY W. SABAA
- Department of Chemistry; Faculty of Science; Cairo University; Giza Egypt
| |
Collapse
|
425
|
Bouillon C, Paolantoni D, Rote JC, Bessin Y, Peterson LW, Dumy P, Ulrich S. Degradable Hybrid Materials Based on Cationic Acylhydrazone Dynamic Covalent Polymers Promote DNA Complexation through Multivalent Interactions. Chemistry 2014; 20:14705-14. [DOI: 10.1002/chem.201403695] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2014] [Indexed: 12/28/2022]
|
426
|
Doerdelmann G, Kozlova D, Epple M. A pH-sensitive poly(methyl methacrylate) copolymer for efficient drug and gene delivery across the cell membrane. J Mater Chem B 2014; 2:7123-7131. [DOI: 10.1039/c4tb01052c] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
|
427
|
Wang A, Muhammad F, Qi W, Wang N, Chen L, Zhu G. Acid-induced release of curcumin from calcium containing nanotheranostic excipient. ACS APPLIED MATERIALS & INTERFACES 2014; 6:14377-14383. [PMID: 25025519 DOI: 10.1021/am503655z] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Poor water solubility is believed one of the most critical problems of numerous promising pharmaceutical ingredients in their successful clinical utilization. Nanomedicine holds considerable promise to address this challenge, because it extends the therapeutic window of hydrophobic drugs through nanonization approach. Recently, the integration of diagnostic agents with smart therapeutic nanocarriers is also an emerging research arena to simultaneously visualize diseased tissues, achieve site specific drug release and track the impact of therapy. In this study, we have developed a biocompatible smart theranostic nanosystem which transports a highly promising hydrophobic drug (curcumin) in response to mildly acidic environment. As calcium is a main constituent of human body, hence we exploited the reversible calcium chelate formation tendency of divalent calcium to load and unload curcumin molecules. Moreover, an emerging T1 contrast agent is also tethered onto the surface of nanocarrier to realize MRI diagnosis application. In-vitro cell experiments revealed a significantly high chemotherapeutic efficiency of curcumin nanoformulation (IC50; 1.67 μg/mL), whereas free curcumin was found ineffective at the corresponding concentration (IC50; 29.72 μg/mL). MR imaging test also validated the performance of resulting system. Our strategy can be extended for the targeted delivery of other hydrophobic pharmaceutical ingredients.
Collapse
Affiliation(s)
- Aifei Wang
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, and ‡College of Life Science, Jilin University , Changchun 130012, China
| | | | | | | | | | | |
Collapse
|
428
|
Remaut K, Oorschot V, Braeckmans K, Klumperman J, De Smedt SC. Lysosomal capturing of cytoplasmic injected nanoparticles by autophagy: an additional barrier to non viral gene delivery. J Control Release 2014; 195:29-36. [PMID: 25125327 DOI: 10.1016/j.jconrel.2014.08.002] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2014] [Revised: 08/01/2014] [Accepted: 08/02/2014] [Indexed: 11/18/2022]
Abstract
Autophagy or 'self-eating' is a process by which defective organelles and foreign material can be cleared from the cell's cytoplasm and delivered to the lysosomes in which degradation occurs. It remains an open question, however, whether nanoparticles that did not enter the cell through endocytosis can also be captured from the cytoplasm by autophagy. We demonstrate that nanoparticles that are introduced directly in the cytoplasm of the cells by microinjection, can trigger an autophagy response. Moreover, both polystyrene beads and plasmid DNA containing poly-ethylene-imine complexes colocalize with autophagosomes and lysosomes, as was confirmed by electron microscopy. This indicates that cytoplasmic capturing of nanoparticles can occur by an autophagy response. The capturing of nanoparticles from the cytoplasm most likely limits the time frame in which efficient nucleic acid delivery can be obtained. Hence, autophagy forms an additional barrier to non-viral gene delivery, a notion that was not often taken into account before. Furthermore, these findings urge us to reconsider the idea that a single endosomal escape event is sufficient to have the long-lasting presence of nanoparticles in the cytoplasm of the cells.
Collapse
Affiliation(s)
- Katrien Remaut
- Lab General Biochemistry & Physical Pharmacy, Faculty of Pharmaceutical Sciences, Ghent University, Ghent, Belgium
| | - Viola Oorschot
- Dept. of Cell Biology, Center for Molecular Medicine, Universital Medical Center Utrecht, The Netherlands
| | - Kevin Braeckmans
- Lab General Biochemistry & Physical Pharmacy, Faculty of Pharmaceutical Sciences, Ghent University, Ghent, Belgium
| | - Judith Klumperman
- Dept. of Cell Biology, Center for Molecular Medicine, Universital Medical Center Utrecht, The Netherlands
| | - Stefaan C De Smedt
- Lab General Biochemistry & Physical Pharmacy, Faculty of Pharmaceutical Sciences, Ghent University, Ghent, Belgium.
| |
Collapse
|
429
|
Wang X, Liu K, Yang G, Cheng L, He L, Liu Y, Li Y, Guo L, Liu Z. Near-infrared light triggered photodynamic therapy in combination with gene therapy using upconversion nanoparticles for effective cancer cell killing. NANOSCALE 2014; 6:9198-9205. [PMID: 24980695 DOI: 10.1039/c4nr02495h] [Citation(s) in RCA: 104] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Upconversion nanoparticles (UCNPs) have drawn much attention in cancer imaging and therapy in recent years. Herein, we for the first time report the use of UCNPs with carefully engineered surface chemistry for combined photodynamic therapy (PDT) and gene therapy of cancer. In our system, positively charged NaGdF4:Yb,Er UCNPs with multilayered polymer coatings are synthesized via a layer by layer strategy, and then loaded simultaneously with Chlorin e6 (Ce6), a photosensitizing molecule, and small interfering RNA (siRNA), which targets the Plk1 oncogene. On the one hand, under excitation by a near-infrared (NIR) light at 980 nm, which shows greatly improved tissue penetration compared with visible light, cytotoxic singlet oxygen can be generated via resonance energy transfer from UCNPs to photosensitizer Ce6, while the residual upconversion luminescence is utilized for imaging. On the other hand, the silencing of Plk1 induced by siRNA delivered with UCNPs could induce significant cancer cell apoptosis. As the result of such combined photodynamic and gene therapy, a remarkably enhanced cancer cell killing effect is realized. Our work thus highlights the promise of UCNPs for imaging guided combination therapy of cancer.
Collapse
Affiliation(s)
- Xin Wang
- Department of Radiology, the First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215006, China.
| | | | | | | | | | | | | | | | | |
Collapse
|
430
|
A facile strategy to functionalize gold nanorods with polycation brushes for biomedical applications. Acta Biomater 2014; 10:3786-94. [PMID: 24814878 DOI: 10.1016/j.actbio.2014.05.002] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2014] [Revised: 04/16/2014] [Accepted: 05/01/2014] [Indexed: 11/22/2022]
Abstract
The fabrication of highly efficient nonviral gene carriers with low cytotoxicity remains a challenge in gene therapy. This paper reports a facile strategy to combine the advantages of gold nanorods (Au NRs) and polycations through surface functionalization. Different Au NR carriers with a controlled amount of poly(2-(N,N-dimethyl amino)ethyl methacrylate) (PDAEMA) brushes could be readily synthesized via surface-initiated atom transfer radical polymerization to achieve optimized nanohybrids for gene transfection. The obtained gene carriers demonstrate much higher gene transfection efficiency and lower cytotoxicity compared with polyethylenimine (∼25kDa, gold standard of nonviral gene vector) in both COS7 and HepG2 cell lines. In addition, the potential of the PDMAEMA-grafted Au NR carriers to be utilized as a computed tomography contrast agent for the imaging of cancer cells has also been investigated. This strategy may realize the gene therapy and real-time imaging within one nanostructure and facilitate biomedical applications.
Collapse
|
431
|
Lin X, Ishihara K. Water-soluble polymers bearing phosphorylcholine group and other zwitterionic groups for carrying DNA derivatives. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2014; 25:1461-78. [DOI: 10.1080/09205063.2014.934319] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
|
432
|
Xu T, Liu W, Wang S, Shao Z. Elucidating the role of free polycationic chains in polycation gene carriers by free chains of polyethylenimine or N,N,N-trimethyl chitosan plus a certain polyplex. Int J Nanomedicine 2014; 9:3231-45. [PMID: 25061299 PMCID: PMC4086671 DOI: 10.2147/ijn.s64308] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
Polycations as gene carriers have attracted considerable attention over the past decade. Generally, polyplexes between polycations and deoxyribonucleic acid (DNA) are formed at low N/P ratios (the ratios of the numbers of nitrogen atoms in a polycation to the numbers of phosphorus atoms in DNA), but high transfection efficiency can only be obtained at much higher N/P ratios. Thus, many polycationic chains are still free in solution. In this study, we investigated the detailed functions of free polyethylenimine chains (PEI-F) and free N,N,N-trimethyl chitosan chains (TMC-F) using the same polyplex, ie, TMC polyplex (TMC-P), which has high stability in Dulbecco’s Modified Eagle’s Medium (DMEM). Meanwhile, PEI polyplex (PEI-P)/PEI-F was also evaluated rather than PEI-P/TMC-F because the stability of PEI-P is low in DMEM and, in the latter case, the TMC-F may replace the bound PEI chain in PEI-P to form TMC-P. The transfection results show that both TMC-F and PEI-F can significantly increase the transfection efficiency of TMC-P; however, PEI-F can upregulate the gene expression of TMC-P more efficiently than TMC-F. Further investigations on the endocytosis and intracellular trafficking show that PEI-P/PEI-F, TMC-P/PEI-F, and TMC-P/TMC-F exhibit similar cellular uptake efficiency. However, by shutting down the clathrin-mediated endocytosis or vacuolar proton pump, the transfection efficiency decreases in the order of PEI-P/PEI-F > TMC-P/PEI-F > TMC-P/TMC-F. These findings indicate that PEI-F and TMC-F may promote the transfection efficiency of the polyplex by affecting its cellular uptake pathway and intracellular trafficking.
Collapse
Affiliation(s)
- Tao Xu
- State Key Laboratory of Molecular Engineering of Polymer, Advanced Materials Laboratory, Department of Macromolecular Science, Fudan University, Shanghai, People's Republic of China
| | - Wei Liu
- Laboratory for Reproductive Immunology, Hospital and Institute of Obstetrics and Gynecology, Fudan University, Shanghai, People's Republic of China
| | - Suhang Wang
- State Key Laboratory of Molecular Engineering of Polymer, Advanced Materials Laboratory, Department of Macromolecular Science, Fudan University, Shanghai, People's Republic of China
| | - Zhengzhong Shao
- State Key Laboratory of Molecular Engineering of Polymer, Advanced Materials Laboratory, Department of Macromolecular Science, Fudan University, Shanghai, People's Republic of China
| |
Collapse
|
433
|
Blake TR, Waymouth RM. Organocatalytic ring-opening polymerization of morpholinones: new strategies to functionalized polyesters. J Am Chem Soc 2014; 136:9252-5. [PMID: 24946200 DOI: 10.1021/ja503830c] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
The oxidative lactonization of N-substituted diethanolamines with the Pd catalyst [LPd(OAc)]2(2+)[OTf(-)]2 generates N-substituted morpholin-2-ones. The organocatalytic ring-opening polymerization of N-acyl morpholin-2-ones occurs readily to generate functionalized poly(aminoesters) with N-acylated amines in the polyester backbone. The thermodynamics of the ring-opening polymerization depends sensitively on the hybridization of the nitrogen of the heterocyclic lactone. N-Acyl morpholin-2-ones polymerize readily to generate polymorpholinones, but the N-aryl or N-alkyl substituted morpholin-2-ones do not polymerize. Experimental and theoretical studies reveal that the thermodynamics of ring opening correlates to the degree of pyramidalization of the endocyclic N-atom. Deprotection of the poly(N-Boc-morpholin-2-one) yields a water-soluble, cationic polymorpholinone.
Collapse
Affiliation(s)
- Timothy R Blake
- Department of Chemistry, Stanford University , Stanford, California 94306, United States
| | | |
Collapse
|
434
|
Van Nieuwenhove I, Stubbe B, Graulus GJ, Van Vlierberghe S, Dubruel P. Protein functionalization revised: N-tert-butoxycarbonylation as an elegant tool to circumvent protein crosslinking. Macromol Rapid Commun 2014; 35:1351-5. [PMID: 24942823 DOI: 10.1002/marc.201400103] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2014] [Revised: 04/28/2014] [Indexed: 12/21/2022]
Abstract
The protection of primary amines available in proteins holds great potential to introduce a plethora of diverse functionalities along the protein backbone (e.g., via its carboxylic acid or alcohol moieties) while circumventing the crosslinking issue using conventional approaches. This paper reports on a straightforward and efficient proof-of-concept including the chemoselective N-tert-butyloxycarbonylation of the primary amines in the protein gelatin (gel-NH-BOC), followed by introducing crosslinkable methacrylamide moieties. The reaction is performed successfully under relatively mild conditions (50 °C). Following selective protein functionalization, the deprotection is realized by adding a catalytic amount of an aqueous hydrogen chloride solution. The present communication illustrates the occurrence of a straightforward and selective deprotection procedure, which is typically required to circumvent the occurrence of acidic hydrolysis of the protein backbone. The results hold promise for a large range of biomedical applications in which the presence of primary amines is essential for preserving the biological activity.
Collapse
Affiliation(s)
- Ine Van Nieuwenhove
- Polymer Chemistry and Biomaterials Group, University Ghent, Krijgslaan 281, 9000, Gent, Belgium
| | | | | | | | | |
Collapse
|
435
|
Ma D, Lin QM, Zhang LM, Liang YY, Xue W. A star-shaped porphyrin-arginine functionalized poly(l-lysine) copolymer for photo-enhanced drug and gene co-delivery. Biomaterials 2014; 35:4357-67. [DOI: 10.1016/j.biomaterials.2014.01.070] [Citation(s) in RCA: 119] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2013] [Accepted: 01/26/2014] [Indexed: 12/13/2022]
|
436
|
Forbes DC, Peppas NA. Polymeric Nanocarriers for siRNA Delivery to Murine Macrophages. Macromol Biosci 2014; 14:1096-105. [DOI: 10.1002/mabi.201400027] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2014] [Revised: 03/11/2014] [Indexed: 11/08/2022]
Affiliation(s)
- Diane C. Forbes
- Department of Chemical Engineering; The University of Texas at Austin; 200 E. Dean Keeton St. Stop C0400 Austin TX 78712 USA
| | - Nicholas A. Peppas
- Department of Chemical Engineering; The University of Texas at Austin; 200 E. Dean Keeton St. Stop C0400 Austin TX 78712 USA
- Department of Biomedical Engineering; The University of Texas at Austin; 1 University Station C0800 Austin TX 78712 USA
- College of Pharmacy; The University of Texas at Austin; 2409 University Ave. A1900 Austin TX 78712 USA
| |
Collapse
|
437
|
Yang C, Shen Y, Wang J, Ouahab A, Zhang T, Tu J. Cationic polymer-based micro-emulgel with self-preserving ability for transdermal delivery of diclofenac sodium. Drug Deliv 2014; 22:814-22. [DOI: 10.3109/10717544.2014.898111] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
|
438
|
Zhang J, Chen YP, Miller KP, Ganewatta MS, Bam M, Yan Y, Nagarkatti M, Decho AW, Tang C. Antimicrobial Metallopolymers and Their Bioconjugates with Conventional Antibiotics against Multidrug-Resistant Bacteria. J Am Chem Soc 2014; 136:4873-6. [DOI: 10.1021/ja5011338] [Citation(s) in RCA: 165] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
| | | | | | | | - Marpe Bam
- Department
of Pathology, Microbiology and Immunology, University of South Carolina, School of Medicine, Columbia, South Carolina 29209, United States
| | | | - Mitzi Nagarkatti
- Department
of Pathology, Microbiology and Immunology, University of South Carolina, School of Medicine, Columbia, South Carolina 29209, United States
| | | | | |
Collapse
|
439
|
Yang B, Lv Y, Wang Q, Liu Y, An H, Feng J, Zhang X, Zhuo R. Template-module assembly to prepare low-molecular-weight gene transport system with enhanced transmembrane capability. Sci China Chem 2014. [DOI: 10.1007/s11426-013-5058-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
440
|
Haridas V, Sadanandan S, Collart-Dutilleul PY, Gronthos S, Voelcker NH. Lysine-appended polydiacetylene scaffolds for human mesenchymal stem cells. Biomacromolecules 2014; 15:582-90. [PMID: 24364714 DOI: 10.1021/bm4015655] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
We report on the self-assembly based fabrication of fibrous polymers for tissue engineering applications. Directed self-assembly followed by polymerization of lysine-appended diacetylenes generated a variety of polymers (P1-P5) with distinct chemical properties. The self-assembly along with the conjugated double and triple bonds and rigid geometry of diacetylene backbone imposed a nanofibrous morphology on the resulting polymers. Chemical properties including wettability of the polymers were tuned by using lysine (Lys) with orthogonal protecting groups (Boc and Fmoc). These Lys-appended polydiacetylene scaffolds were compared in terms of their efficiency toward human mesenchymal stem cells adhesion and spreading. Interestingly, polymer P4 containing Lys N(α)-NH2 and Lys N(ε)-Boc with balanced wettability supported cell adhesion better than the more hydrophobic polymer P2 with N(ε)-Boc and N(α)-Fmoc or more hydrophilic polymer P5 containing free N(ε) and N(α) amino groups. The molecular level control in the fabrication of nanofibrous polymers compared with other existing methods for the generation of fibrous polymers is the hallmark of this work.
Collapse
Affiliation(s)
- V Haridas
- Department of Chemistry, Indian Institute of Technology Delhi , New Delhi-110016, India
| | | | | | | | | |
Collapse
|
441
|
Han S, Wan H, Lin D, Guo S, Dong H, Zhang J, Deng L, Liu R, Tang H, Dong A. Contribution of hydrophobic/hydrophilic modification on cationic chains of poly(ε-caprolactone)-graft-poly(dimethylamino ethylmethacrylate) amphiphilic co-polymer in gene delivery. Acta Biomater 2014; 10:670-9. [PMID: 24096149 DOI: 10.1016/j.actbio.2013.09.035] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2013] [Revised: 09/11/2013] [Accepted: 09/25/2013] [Indexed: 12/23/2022]
Abstract
Nanoparticles (NPs) assembled from amphiphilic polycations have been certified as potential carriers for gene delivery. Structural modification of polycation moieties may be an efficient route to further enhance gene delivery efficiency. In this study two electroneutral monomers with different hydrophobicities, 2-hydroxyethyl methacrylate (HEMA) and 2-hydroxyethyl acrylate (HEA), were incorporated into the cationic poly(dimethylamino ethyl methacrylate) (PDMAEMA) side-chains of amphiphilic poly(ε-caprolactone)-graft-poly(dimethylamino ethylmethacrylate) (PCD) by random co-polymerization, to obtain poly(ε-caprolactone)-graft-poly(dimethylamino ethyl methacrylate-co-2-hydroxyethyl methacrylate) (PCD-HEMA) and poly(ε-caprolactone)-graft-poly(dimethylamino ethyl methacrylate-co-2-hydroxyethyl acrylate) (PCD-HEA). Minimal HEA or HEMA moieties in PDMAEMA do not lead to statistically significant changes in particle size, zeta potential, DNA condensation properties and buffering capacity of the naked NPs. However, the incorporation of HEMA and HEA lead to reductions and increases, respectively, in the surface hydrophilicity of the naked NPs and NPs/DNA complexes, which was confirmed by water contact angle assay. These simple modifications of PDMAEMA with HEA and HEMA moieties significantly affect the gene transfection efficiency on HeLa cells in vitro: PCD-HEMA NP/DNA complexes show a much higher transfection efficiency than PCD NPs/DNA complexes, while PCD-HEA NPs/DNA complexes show a lower transfection efficiency than PCD NP/DNA complexes. Fluorescence activated cell sorter and confocal laser scanning microscope results indicate that the incorporation of hydrophobic HEMA moieties facilitates an enhancement in both cellular uptake and endosomal/lysosomal escape, leading to a higher transfection efficiency. Moreover, the process of endosomal/lysosomal escape confirmed in our research that PCD and its derivatives do not just rely on the proton sponge mechanism, but also on membrane damage due to the polycation chains, especially hydrophobic modified ones. Hence, it is proved that hydrophobic modification of cationic side-chains is a crucial route to improve gene transfection mediated by polycation NPs.
Collapse
|
442
|
Yi WJ, Yu XC, Wang B, Zhang J, Yu QY, Zhou XD, Yu XQ. TACN-based oligomers with aromatic backbones for efficient nucleic acid delivery. Chem Commun (Camb) 2014; 50:6454-7. [DOI: 10.1039/c4cc01210k] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Oligomers with an aromatic backbone showed highly improved gene transfection efficiency compared to 25 kDa PEI.
Collapse
Affiliation(s)
- Wen-Jing Yi
- Key Laboratory of Green Chemistry and Technology (Ministry of Education)
- College of Chemistry
- Sichuan University
- Chengdu 610064, PR China
| | - Xing-Chi Yu
- Key Laboratory of Green Chemistry and Technology (Ministry of Education)
- College of Chemistry
- Sichuan University
- Chengdu 610064, PR China
| | - Bing Wang
- Key Laboratory of Green Chemistry and Technology (Ministry of Education)
- College of Chemistry
- Sichuan University
- Chengdu 610064, PR China
| | - Ji Zhang
- Key Laboratory of Green Chemistry and Technology (Ministry of Education)
- College of Chemistry
- Sichuan University
- Chengdu 610064, PR China
| | - Qing-Ying Yu
- Key Laboratory of Green Chemistry and Technology (Ministry of Education)
- College of Chemistry
- Sichuan University
- Chengdu 610064, PR China
| | - Xue-Dong Zhou
- State Key Laboratory of Oral Diseases
- Sichuan University
- Chengdu 610041, PR China
| | - Xiao-Qi Yu
- Key Laboratory of Green Chemistry and Technology (Ministry of Education)
- College of Chemistry
- Sichuan University
- Chengdu 610064, PR China
| |
Collapse
|
443
|
Samal SK, Dash M, Chiellini F, Wang X, Chiellini E, Declercq HA, Kaplan DL. Silk/chitosan biohybrid hydrogels and scaffolds via green technology. RSC Adv 2014. [DOI: 10.1039/c4ra10070k] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A green technology approach towards conjugation of biopolymers for designing biohybrid silk/chitosan based biomaterials for therapeutic applications.
Collapse
Affiliation(s)
- Sangram K. Samal
- BioLab-UdR-INSTM
- University of Pisa
- Pisa – 1291, Italy
- Department of Biomedical Engineering
- Tufts University
| | - Mamoni Dash
- BioLab-UdR-INSTM
- University of Pisa
- Pisa – 1291, Italy
- Polymer Chemistry & Biomaterials Research Group
- Ghent University
| | | | - Xiaoqin Wang
- Department of Biomedical Engineering
- Tufts University
- Medford, USA
| | - Emo Chiellini
- BioLab-UdR-INSTM
- University of Pisa
- Pisa – 1291, Italy
| | - Heidi A. Declercq
- Department of Basic Medical Sciences – Tissue Engineering Group
- Ghent University
- 9000 Ghent, Belgium
| | - David L. Kaplan
- Department of Biomedical Engineering
- Tufts University
- Medford, USA
| |
Collapse
|
444
|
Chien CT, Liu CY, Wu ZW, Chen PJ, Chu CL, Lin SY. Co-caged gold nanoclusters and methyl motifs lead to detoxification of dendrimers and allow cytosolic access for siRNA transfection. J Mater Chem B 2014; 2:6730-6737. [DOI: 10.1039/c4tb01153h] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
A simple co-caging strategy for siRNA transfection is reported that focuses on overcoming the two limitations of dendrimers – inherent toxicity and inefficient cytosolic access.
Collapse
Affiliation(s)
- Chih-Te Chien
- Institute of Biomedical Engineering and Nanomedicine
- National Health Research Institutes
- Miaoli County, Taiwan
| | - Chia-Yeh Liu
- Institute of Biomedical Engineering and Nanomedicine
- National Health Research Institutes
- Miaoli County, Taiwan
| | - Zong-Wei Wu
- Institute of Biomedical Engineering and Nanomedicine
- National Health Research Institutes
- Miaoli County, Taiwan
| | - Pin-Jyun Chen
- Institute of Biomedical Engineering and Nanomedicine
- National Health Research Institutes
- Miaoli County, Taiwan
| | - Ching-Liang Chu
- Graduate Institute of Immunology
- College of Medicine
- National Taiwan University
- Taipei, Taiwan
| | - Shu-Yi Lin
- Institute of Biomedical Engineering and Nanomedicine
- National Health Research Institutes
- Miaoli County, Taiwan
| |
Collapse
|
445
|
Mendonça PV, Konkolewicz D, Averick SE, Serra AC, Popov AV, Guliashvili T, Matyjaszewski K, Coelho JFJ. Synthesis of cationic poly((3-acrylamidopropyl)trimethylammonium chloride) by SARA ATRP in ecofriendly solvent mixtures. Polym Chem 2014. [DOI: 10.1039/c4py00707g] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Successful supplemental activator and reducing agent atom transfer radical polymerization of (3-acrylamidopropyl)trimethylammonium chloride under ecofriendly conditions.
Collapse
Affiliation(s)
- Patrícia V. Mendonça
- CEMUC
- Department of Chemical Engineering
- University of Coimbra
- 3030-790 Coimbra, Portugal
| | | | | | - Arménio C. Serra
- CEMUC
- Department of Chemical Engineering
- University of Coimbra
- 3030-790 Coimbra, Portugal
| | | | - Tamaz Guliashvili
- CEMUC
- Department of Chemical Engineering
- University of Coimbra
- 3030-790 Coimbra, Portugal
| | | | - Jorge F. J. Coelho
- CEMUC
- Department of Chemical Engineering
- University of Coimbra
- 3030-790 Coimbra, Portugal
| |
Collapse
|
446
|
Holowka EP, Bhatia SK. Smart Drug Delivery Systems. Drug Deliv 2014. [DOI: 10.1007/978-1-4939-1998-7_7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
|
447
|
Bang EK, Ward S, Gasparini G, Sakai N, Matile S. Cell-penetrating poly(disulfide)s: focus on substrate-initiated co-polymerization. Polym Chem 2014. [DOI: 10.1039/c3py01570j] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
|
448
|
Wang X, Kelkar SS, Hudson AG, Moore RB, Reineke TM, Madsen LA. Quantitation of Complexed versus Free Polymers in Interpolyelectrolyte Polyplex Formulations. ACS Macro Lett 2013; 2:1038-1041. [PMID: 35581875 DOI: 10.1021/mz400500q] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
The quantity of free polymer in a polymer/DNA complex (polyplex) formulation critically impacts its gene transfection efficiency, cellular uptake, and toxicity. In this study, the compositions of three interpolyelectrolyte polyplex formulations were quantified by a facile NMR method. Using careful integration of a 1D 1H NMR spectrum with a broad spectral width, the quantities of unbound polymer and polyplexes in solution were determined. Linear polyethyleneimine (PEI) mixed with DNA at polymer amine to DNA phosphate molar ratio (N/P ratio) of 5 revealed an effective binding N/P ratio of 3.5 without excess free polymer. This result is in strong agreement with the stoichiometric number of PEI/DNA binding obtained by isothermal titration calorimetry. The noninvasive nature of this method allows broad application to a range of polyelectrolyte coacervates, opening new opportunities for understanding and optimizing polyelectrolyte complex formation and providing quantitation of complex formation in a single measurement.
Collapse
Affiliation(s)
- Xiaoling Wang
- Department
of Chemistry and Macromolecules and Interfaces Institute, Virginia Tech, Blacksburg, Virginia 24061, United States
| | - Sneha S. Kelkar
- Department
of Chemistry and Macromolecules and Interfaces Institute, Virginia Tech, Blacksburg, Virginia 24061, United States
- Wake Forest Institute for Regenerative Medicine and Virginia Tech-Wake Forest School of Biomedical Engineering and Sciences, Winston-Salem, North Carolina 27101, United States
| | - Amanda G. Hudson
- Department
of Chemistry and Macromolecules and Interfaces Institute, Virginia Tech, Blacksburg, Virginia 24061, United States
| | - Robert B. Moore
- Department
of Chemistry and Macromolecules and Interfaces Institute, Virginia Tech, Blacksburg, Virginia 24061, United States
| | - Theresa M. Reineke
- Department
of Chemistry and Macromolecules and Interfaces Institute, Virginia Tech, Blacksburg, Virginia 24061, United States
- Department
of Chemistry, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Louis A. Madsen
- Department
of Chemistry and Macromolecules and Interfaces Institute, Virginia Tech, Blacksburg, Virginia 24061, United States
| |
Collapse
|
449
|
Meng Q, Yin Q, Li Y. Nanocarriers for siRNA delivery to overcome cancer multidrug resistance. ACTA ACUST UNITED AC 2013. [DOI: 10.1007/s11434-013-6030-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
|
450
|
Canaparo R, Varchi G, Ballestri M, Foglietta F, Sotgiu G, Guerrini A, Francovich A, Civera P, Frairia R, Serpe L. Polymeric nanoparticles enhance the sonodynamic activity of meso-tetrakis (4-sulfonatophenyl) porphyrin in an in vitro neuroblastoma model. Int J Nanomedicine 2013; 8:4247-63. [PMID: 24232189 PMCID: PMC3826853 DOI: 10.2147/ijn.s51070] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Purpose Sonodynamic therapy is a developing noninvasive modality for cancer treatment, based on the selective activation of a sonosensitizer agent by acoustic cavitation. The activated sonosensitizer agent might generate reactive oxygen species leading to cancer cell death. We investigated the potential poly-methyl methacrylate core-shell nanoparticles (NPs) loaded with meso-tetrakis (4-sulfonatophenyl) porphyrin (TPPS) have to function as an innovative sonosensitizing system, ie, TPPS-NPs. Methods Shockwaves (SWs) generated by a piezoelectric device were used to induce acoustic cavitation. The cytotoxic effect of the sonodynamic treatment with TPPS-NPs and SWs was investigated on the human neuroblastoma cell line, SH-SY5Y. Cells were exposed for 12 hours to TPPS-NPs (100 μg/mL) and then to SWs (0.43 mJ/mm2 for 500 impulses, 4 impulses/second). Treatment with SWs, TPPS, and NPs alone or in combination was carried out as control. Results There was a statistically significant decrease in SH-SY5Y cell proliferation after the sonodynamic treatment with TPPS-NPs and SWs. Indeed, there was a significant increase in necrotic (16.91% ± 3.89%) and apoptotic (27.45% ± 3.03%) cells at 48 hours. Moreover, a 15-fold increase in reactive oxygen species production for cells exposed to TPPS-NPs and SWs was observed at 1 hour compared with untreated cells. A statistically significant enhanced mRNA (messenger ribonucleic acid) expression of NRF2 (P<0.001) and a significant downregulation of TIGAR (P<0.05) and MAP3K5 (P<0.05) genes was observed in cells exposed to TPPS-NPs and SWs at 24 hours, along with a statistically significant release of cytochrome c (P<0.01) at 48 hours. Lastly, the sonosensitizing system was also investigated in an in vitro three-dimensional model, and the sonodynamic treatment significantly decreased the neuroblastoma spheroid growth. Conclusion The sonosensitizing properties of TPPS were significantly enhanced once loaded onto NPs, thus enhancing the sonodynamic treatment’s efficacy in an in vitro neuroblastoma model.
Collapse
Affiliation(s)
- Roberto Canaparo
- Department of Drug Science and Technology, University of Torino, Torino, Italy
| | | | | | | | | | | | | | | | | | | |
Collapse
|