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Petriccone M, Laurent R, Caminade AM, Sebastián RM. Diverse Approaches for the Difunctionalization of PPH Dendrimers, Precise Versus Stochastic: How Does this Influence Catalytic Performance? ACS Macro Lett 2024; 13:853-858. [PMID: 38917088 PMCID: PMC11256758 DOI: 10.1021/acsmacrolett.4c00204] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2024] [Revised: 05/18/2024] [Accepted: 05/22/2024] [Indexed: 06/27/2024]
Abstract
Random difunctionalization of dendrimer surfaces, frequently employed in biological applications, provides the advantage of dual functional groups through a synthetic pathway that is simpler compared to precise difunctionalization. However, is the random difunctionalization as efficient as the precise difunctionalization on the surface of dendrimers? This question is unanswered to date because most dendrimer families face challenges in achieving precise functionalization. Polyphosphorhydrazone (PPH) dendrimers present a unique opportunity to obtain precise difunctionalization at each terminal branching point. The work concerning catalysis we report with PPH dendrimers, whether precisely or randomly functionalized, addresses this question. Across PPH dendrimers, from generations 1 to 3, precise functionalization consistently outperforms random functionalization in terms of efficiency. This finding introduces a novel concept in dendrimer science, emphasizing the superiority of precise over random functionalization methodologies. Introducing a groundbreaking concept in the field of dendrimers.
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Affiliation(s)
- Massimo Petriccone
- Department
of Chemistry, Science Faculty, Universitat
Autònoma de Barcelona, Campus de Bellaterra, s/n, 08193 Cerdanyola del Vallès, Barcelona, Spain
- Centro
de Innovación en Química Avanzada (ORFEO−CINQA), Universitat Autònoma de Barcelona, Cerdanyola del Vallès, Bellaterra, 08193, Barcelona, Spain
- Laboratoire
de Chimie de Coordination, CNRS, 205 Route de Narbonne, 31077 Toulouse, CEDEX 4, France
- LCC−CNRS, Université de Toulouse, CNRS, 31077 Toulouse, France
| | - Régis Laurent
- Laboratoire
de Chimie de Coordination, CNRS, 205 Route de Narbonne, 31077 Toulouse, CEDEX 4, France
- LCC−CNRS, Université de Toulouse, CNRS, 31077 Toulouse, France
| | - Anne-Marie Caminade
- Laboratoire
de Chimie de Coordination, CNRS, 205 Route de Narbonne, 31077 Toulouse, CEDEX 4, France
- LCC−CNRS, Université de Toulouse, CNRS, 31077 Toulouse, France
| | - Rosa María Sebastián
- Department
of Chemistry, Science Faculty, Universitat
Autònoma de Barcelona, Campus de Bellaterra, s/n, 08193 Cerdanyola del Vallès, Barcelona, Spain
- Centro
de Innovación en Química Avanzada (ORFEO−CINQA), Universitat Autònoma de Barcelona, Cerdanyola del Vallès, Bellaterra, 08193, Barcelona, Spain
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2
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Goyal R, Chopra H, singh I, Dua K, Gautam RK. Insights on prospects of nano-siRNA based approaches in treatment of Cancer. Front Pharmacol 2022; 13:985670. [PMID: 36091772 PMCID: PMC9452808 DOI: 10.3389/fphar.2022.985670] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Accepted: 08/08/2022] [Indexed: 11/13/2022] Open
Abstract
siRNA interference, commonly referred to as gene silence, is a biological mechanism that inhibits gene expression in disorders such as cancer. It may enhance the precision, efficacy, and stability of medicines, especially genetic therapies to some extent. However, obstacles such as the delivery of oligonucleotide drugs to inaccessible areas of the body and the prevalence of severe side effects must be overcome. To maximize their potential, it is thus essential to optimize their distribution to target locations and limit their toxicity to healthy cells. The action of siRNA may be harnessed to delete a similar segment of mRNA that encodes a protein that causes sickness. The absence of an efficient delivery mechanism that shields siRNA from nuclease degradation, delivers it to cancer cells and releases it into the cytoplasm of specific cancer cells without causing side effects is currently the greatest obstacle to the practical implementation of siRNA therapy. This article focuses on combinations of siRNA with chemotherapeutic drug delivery systems for the treatment of cancer and gives an overview of several nanocarrier formulations in both research and clinical applications.
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Affiliation(s)
- Rajat Goyal
- MM School of Pharmacy, MM University, Sadopur-Ambala, Haryana, India
- MM College of Pharmacy, MM (Deemed to be University), Mullana-Ambala, Haryana, India
| | - Hitesh Chopra
- Chitkara College of Pharmacy, Chitkara University, Patiala, Punjab, India
| | - Inderbir singh
- Chitkara College of Pharmacy, Chitkara University, Patiala, Punjab, India
| | - Kamal Dua
- Discipline of Pharmacy Graduate School of Health Faculty of Health, Australian Research Centre in Complementary and Integrative Medicine (ARCCIM) University of Technology Sydney, Sydney, NSW, Australia
- *Correspondence: Kamal Dua, ; Rupesh K. Gautam,
| | - Rupesh K. Gautam
- MM School of Pharmacy, MM University, Sadopur-Ambala, Haryana, India
- *Correspondence: Kamal Dua, ; Rupesh K. Gautam,
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3
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Huang X, Wu G, Liu C, Hua X, Tang Z, Xiao Y, Chen W, Zhou J, Kong N, Huang P, Shi J, Tao W. Intercalation-Driven Formation of siRNA Nanogels for Cancer Therapy. NANO LETTERS 2021; 21:9706-9714. [PMID: 34723546 DOI: 10.1021/acs.nanolett.1c03539] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
RNA interference (RNAi) is a powerful approach in the treatment of various diseases including cancers. The clinical translation of small interfering RNA (siRNA)-based therapy requires safe and efficient delivery vehicles. Here, we report a siRNA nanogels (NG)-based delivery vehicle, which is driven directly by the intercalation between nucleic acid bis-intercalator and siRNA molecules. The intercalation-based siRNA NG exhibits good physiological stability and can enter cells efficiently via different endocytosis pathways. Furthermore, the siRNA NG can not only silence the target genes in vitro but also significantly inhibit the tumor growth in vivo. Therefore, this study provides an intercalation-based strategy for the development of a siRNA delivery platform for cancer therapy. To the best of our knowledge, this is the first report of the intercalation-driven siRNA NG.
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Affiliation(s)
- Xiangang Huang
- Marshall Laboratory of Biomedical Engineering, International Cancer Center, Laboratory of Evolutionary Theranostics (LET), School of Biomedical Engineering, Health Science Center, Shenzhen University, Shenzhen 518060, China
- Key Laboratory of Optoelectronic Devices and Systems of the Ministry of Education and Guangdong Province, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060 China
- Center for Nanomedicine and Department of Anesthesiology, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts 02115, United States
| | - Gongwei Wu
- Department of Medical Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, Massachusetts 02215, United States
| | - Chuang Liu
- Center for Nanomedicine and Department of Anesthesiology, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts 02115, United States
| | - Xianwu Hua
- Center for Nanomedicine and Department of Anesthesiology, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts 02115, United States
| | - Zhongmin Tang
- Center for Nanomedicine and Department of Anesthesiology, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts 02115, United States
| | - Yufen Xiao
- Center for Nanomedicine and Department of Anesthesiology, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts 02115, United States
| | - Wei Chen
- Center for Nanomedicine and Department of Anesthesiology, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts 02115, United States
| | - Jun Zhou
- Center for Nanomedicine and Department of Anesthesiology, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts 02115, United States
| | - Na Kong
- Center for Nanomedicine and Department of Anesthesiology, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts 02115, United States
| | - Peng Huang
- Marshall Laboratory of Biomedical Engineering, International Cancer Center, Laboratory of Evolutionary Theranostics (LET), School of Biomedical Engineering, Health Science Center, Shenzhen University, Shenzhen 518060, China
| | - Jinjun Shi
- Center for Nanomedicine and Department of Anesthesiology, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts 02115, United States
| | - Wei Tao
- Center for Nanomedicine and Department of Anesthesiology, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts 02115, United States
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4
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Vats K, Sharma R, Sharma AK, Sarma HD, Satpati D. Assessment of 177 Lu-labeled carboxyl-terminated polyamidoamine (PAMAM) dendrimer-RGD peptide conjugate. J Pept Sci 2021; 28:e3366. [PMID: 34463002 DOI: 10.1002/psc.3366] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2021] [Revised: 08/02/2021] [Accepted: 08/16/2021] [Indexed: 11/09/2022]
Abstract
Structurally unique polyamidoamine (PAMAM) dendrimers implanted with targeting biological moiety along with complexed radiometal constitute a favorable nano-system for diagnosis and therapy of targeted tumor sites. In the present study, carboxyl functionalities of PAMAM- generation 4 dendrimer (PAMAM-G4-COOH) were conjugated with ε-amino group of lysine of cRGDfK peptide to impart integrin αv β3 targeting capability. Reaction of p-NH2 -Bn-DOTA with PAMAM was accomplished via acid-amine coupling using EDC/NHS for 177 Lu-complexation. 177 Lu-labeled nano-system, 177 Lu-PAMAM-DOTA-cRGDfK demonstrated receptor-mediated uptake in murine melanoma B16F10 cells during in vitro cell uptake studies. In vivo biodistribution studies demonstrated low tumor uptake and retention of 177 Lu-PAMAM-DOTA-cRGDfK which may be attributed to rapid blood clearance. However, fast clearance from non-target organs resulted in higher target to background ratio. Tumor uptake of targeted nano-system, 177 Lu-PAMAM-DOTA-cRGDfK was observed to be significantly (p < 0.05) higher in comparison to 177 Lu-PAMAM-DOTA without the targeting peptide. Inhibition studies with unlabeled cRGDfK resulted in 60% reduction in tumor uptake of 177 Lu-PAMAM-DOTA-cRGDfK, indicating specificity of the developed nano-system towards integrin αv β3 receptors.
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Affiliation(s)
- Kusum Vats
- Radiopharmaceuticals Division, Radiochemistry and Isotope Group, Mumbai, India.,Chemical Sciences, Homi Bhabha National Institute, Mumbai, India
| | - Rohit Sharma
- Radiopharmaceuticals Division, Radiochemistry and Isotope Group, Mumbai, India.,Chemical Sciences, Homi Bhabha National Institute, Mumbai, India
| | - Amit Kumar Sharma
- Radiopharmaceuticals Division, Radiochemistry and Isotope Group, Mumbai, India.,Chemical Sciences, Homi Bhabha National Institute, Mumbai, India
| | - Haladhar D Sarma
- Radiation Biology and Health Science Division, Bhabha Atomic Research Centre, Mumbai, India
| | - Drishty Satpati
- Radiopharmaceuticals Division, Radiochemistry and Isotope Group, Mumbai, India.,Chemical Sciences, Homi Bhabha National Institute, Mumbai, India
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5
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Kumar R, Santa Chalarca CF, Bockman MR, Bruggen CV, Grimme CJ, Dalal RJ, Hanson MG, Hexum JK, Reineke TM. Polymeric Delivery of Therapeutic Nucleic Acids. Chem Rev 2021; 121:11527-11652. [PMID: 33939409 DOI: 10.1021/acs.chemrev.0c00997] [Citation(s) in RCA: 149] [Impact Index Per Article: 49.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The advent of genome editing has transformed the therapeutic landscape for several debilitating diseases, and the clinical outlook for gene therapeutics has never been more promising. The therapeutic potential of nucleic acids has been limited by a reliance on engineered viral vectors for delivery. Chemically defined polymers can remediate technological, regulatory, and clinical challenges associated with viral modes of gene delivery. Because of their scalability, versatility, and exquisite tunability, polymers are ideal biomaterial platforms for delivering nucleic acid payloads efficiently while minimizing immune response and cellular toxicity. While polymeric gene delivery has progressed significantly in the past four decades, clinical translation of polymeric vehicles faces several formidable challenges. The aim of our Account is to illustrate diverse concepts in designing polymeric vectors towards meeting therapeutic goals of in vivo and ex vivo gene therapy. Here, we highlight several classes of polymers employed in gene delivery and summarize the recent work on understanding the contributions of chemical and architectural design parameters. We touch upon characterization methods used to visualize and understand events transpiring at the interfaces between polymer, nucleic acids, and the physiological environment. We conclude that interdisciplinary approaches and methodologies motivated by fundamental questions are key to designing high-performing polymeric vehicles for gene therapy.
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Affiliation(s)
- Ramya Kumar
- Department of Chemistry, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | | | - Matthew R Bockman
- Department of Chemistry, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Craig Van Bruggen
- Department of Chemistry, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Christian J Grimme
- Department of Chemical Engineering and Materials Science, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Rishad J Dalal
- Department of Chemistry, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Mckenna G Hanson
- Department of Chemistry, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Joseph K Hexum
- Department of Chemistry, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Theresa M Reineke
- Department of Chemistry, University of Minnesota, Minneapolis, Minnesota 55455, United States
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6
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Wong PT, Tang S, Cannon J, Yang K, Harrison R, Ruge M, O'Konek JJ, Choi SK. Shielded α-Nucleophile Nanoreactor for Topical Decontamination of Reactive Organophosphate. ACS APPLIED MATERIALS & INTERFACES 2020; 12:33500-33515. [PMID: 32603588 DOI: 10.1021/acsami.0c08946] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Here, we describe a nanoscale reactor strategy with a topical application in the therapeutic decontamination of reactive organophosphates (OPs) as chemical threat agents. It involves functionalization of poly(amidoamine) dendrimer through a combination of its partial PEG shielding and exhaustive conjugation with an OP-reactive α-nucleophile moiety at its peripheral branches. We prepared a 16-member library composed of two α-nucleophile classes (oxime, hydroxamic acid), each varying in its reactor valency (43-176 reactive units per nanoparticle), and linker framework for α-nucleophile tethering. Their mechanism for OP inactivation occurred via nucleophilic catalysis as verified against P-O and P-S bonded OPs including paraoxon-ethyl (POX), malaoxon, and omethoate by 1H NMR spectroscopy. Screening their reactivity for POX inactivation was performed under pH- and temperature-controlled conditions, which resulted in identifying 13 conjugates, each showing shorter POX half-life up to 2 times as compared to a reference Dekon 139 at pH 10.5, 37 °C. Of these, 10 conjugates were further confirmed for greater efficacy in POX decontamination experiments performed in two skin models, porcine skin and an artificial human microtissue. Finally, a few lead conjugates were selected and demonstrated for their biocompatibility in vitro as evident with lack of skin absorption, no inhibition of acetylcholinesterase (AChE), and no cytotoxicity in human neuroblastoma cells. In summary, this study presents a novel nanoreactor library, its screening methods, and identification of potent lead conjugates with potential for therapeutic OP decontamination.
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7
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Zhang YM, Zhang J, Liu YH, Guo Y, Yu XQ, Huang Z. Zinc( ii)-cyclen coordinative amphiphiles for enhanced gene delivery. RSC Adv 2020; 10:39842-39853. [PMID: 35515358 PMCID: PMC9057412 DOI: 10.1039/d0ra08027f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2020] [Accepted: 10/23/2020] [Indexed: 12/18/2022] Open
Abstract
In this study, we developed coordinative amphiphiles for use as novel non-viral DNA vectors. As a modification of a conventional cationic lipid structure, we replaced the cationic head with a zinc(ii)-1,4,7,10-tetraazacyclododecane (Zn-cyclen) complex as a phosphate-directing group, and used biocompatible skeletons (α-tocopherol or cholesterol) as hydrophobic tails. The structure-activity relationship (SAR) was systematically investigated to study the effect of Zn-coordination on the gene transfection between cyclen-based traditional head-tail lipids and Zn(ii)-cyclen coordinative amphiphiles. The results reveal that both Zn-free lipids and Zn-containing amphiphiles could condense DNA into nano-sized particles with appropriate size and zeta-potentials. Agarose gel retardation assay and MTS-based cell viability assays demonstrated that the Zn(ii)-cyclen complex exhibited slightly lower DNA binding ability and much lower cytotoxicity compared to liposome analogues, respectively. Most importantly, in vitro transfection studies showed that the coordination of zinc(ii) to cyclen may dramatically increase the transfection efficiency of the conventional cationic lipid, and α-tocopherol-containing coordinative amphiphile Zn-Cyc-Toc gives the best transfection efficiency, which was enhanced 24.4 times after coordination and was 6.1 times higher than commercial transfection reagent lipofectamine 2000. Mechanism studies confirmed that the DNA complex formed from Zn-Cyc-Toc might induce higher cellular uptake and better endosomal escape ability than the lipoplexes formed from Zn-free lipid Cyc-Toc. This study not only demonstrates that these coordinative amphiphiles might be promising non-viral gene vectors, but also presents a novel strategy to enhance the gene transfection efficiency and biocompatibility of cyclen-based cationic lipids. Zn-coordination could dramatically enhance the gene transfection efficiency and reduce the cytotoxicity of conventional cyclen-based cationic liposomes.![]()
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Affiliation(s)
- Yi-Mei Zhang
- National & Local Joint Engineering Research Center of Targeted and Innovative Therapeutics
- Chongqing Key Laboratory of Kinase Modulators As Innovative Medicine
- College of Pharmacy & International Academy of Targeted Therapeutics and Innovation
- Chongqing University of Arts and Sciences
- Chongqing 402160
| | - Ji Zhang
- Key Laboratory of Green Chemistry & Technology (Ministry of Education)
- College of Chemistry
- Sichuan University
- Chengdu 610064
- China
| | - Yan-Hong Liu
- Key Laboratory of Green Chemistry & Technology (Ministry of Education)
- College of Chemistry
- Sichuan University
- Chengdu 610064
- China
| | - Yu Guo
- Key Laboratory of Green Chemistry & Technology (Ministry of Education)
- College of Chemistry
- Sichuan University
- Chengdu 610064
- China
| | - Xiao-Qi Yu
- Key Laboratory of Green Chemistry & Technology (Ministry of Education)
- College of Chemistry
- Sichuan University
- Chengdu 610064
- China
| | - Zheng Huang
- National & Local Joint Engineering Research Center of Targeted and Innovative Therapeutics
- Chongqing Key Laboratory of Kinase Modulators As Innovative Medicine
- College of Pharmacy & International Academy of Targeted Therapeutics and Innovation
- Chongqing University of Arts and Sciences
- Chongqing 402160
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8
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Yiwen Wang, Gao L, Zhao R, Liu X, Lu M, Yao X, Shen Y. Binding and Release of Reactive Oxygen Species-Responsive Charge Reversal Cationic Polymers with DNA Studied by Surface Plasmon Resonance. POLYMER SCIENCE SERIES A 2019. [DOI: 10.1134/s0965545x19060130] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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9
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Gao YG, Lin X, Dang K, Jiang SF, Tian Y, Liu FL, Li DJ, Li Y, Miao ZP, Qian AR. Structure-activity relationship of novel low-generation dendrimers for gene delivery. Org Biomol Chem 2019; 16:7833-7842. [PMID: 30084471 DOI: 10.1039/c8ob01767k] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Structure-activity relationship (SAR) studies are very critical to design ideal gene vectors for gene delivery. However, It is difficult to obtain SAR information of low-generation dendrimers due to the lack of easy structural modification ways. Here, we synthesized a novel family of rigid aromatic backbone-based low-generation polyamidoamine (PAMAM) dendrimers. According to the number of primary amines, they were divided into two types: four-amine-containing PAMAM (DL1-DL5) and eight-amine-containing PAMAM (DL6-DL10). Due to the introduction of a rigid aromatic backbone, the low-generation PAMAM could be modified easier by different hydrophobic aliphatic chains. Several assays were used to study the interactions of the PAMAM dendrimers with plasmid DNA, and the results revealed that they not only had good DNA binding ability but also could efficiently condense DNA into spherical-shaped nanoparticles with suitable sizes and zeta potentials. The SAR studies indicated that the gene-transfection efficiency of the synthesized materials depended on not only the structure of their hydrophobic chains but also the number of primary amines. It was found that four-amine-containing PAMAM prepared from oleylamine (DL5) gave the best transfection efficiency, which was 3 times higher than that of lipofectamine 2000 in HEK293 cells. The cellular uptake mechanism mediated by DL5 was further investigated, and the results indicated that DL5/DNA complexes entered the cells mainly via caveolae and clathrin-mediated endocytosis. In addition, these low-generation PAMAMs modified with a single hydrophobic tail showed lower toxicity than lipofectamine 2000 in MC3T3-E1, MG63, HeLa, and HEK293 cells. These results reveal that such a type of low-generation polyamidoamines might be promising non-viral gene vectors, and also give us clues for the design of safe and high-efficiency gene vectors.
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Affiliation(s)
- Yong-Guang Gao
- Lab for Bone Metabolism, Key Lab for Space Biosciences and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shanxi 710072, China.
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10
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Dalal C, Jana NR. Riboflavin-Terminated, Multivalent Quantum Dot as Fluorescent Cell Imaging Probe. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:11380-11388. [PMID: 31389703 DOI: 10.1021/acs.langmuir.9b01168] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Bioconjugated nanoparticles are commonly used for targeting cellular/subcellular components, and labeling performance is known to depend on multivalency, i.e., the number of attached biomolecule per particle. However, these multivalency effects are largely unexplored. Here, we show that multivalency of nanoparticle-bound riboflavin controls the cellular interaction, cellular entry/exit mechanism, and subcellular trafficking property. We have synthesized riboflavin-functionalized quantum dot (QD) of 15-25 nm hydrodynamic size with average riboflavin multivalencies of 15, 30, and 70 [designated as QD(RF)15, QD(RF)30, and QD(RF)70, respectively] and investigated their uptake mechanism in riboflavin receptor overexpressed KB cells. We found that increased multivalency from 15 to 70 increases the cellular interaction with QD, shifts the cell uptake mechanism from caveolae-clathrin to exclusive clathrin-mediated endocytosis, and enhances lysosomal trafficking. This work demonstrates the importance of multivalency of bioconjugated molecule at the nanoparticle surface toward biolabeling performance and should be optimized for best performance of designed nanobioconjugate.
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Affiliation(s)
- Chumki Dalal
- School of Materials Science , Indian Association for the Cultivation of Science , Kolkata 700032 , India
| | - Nikhil R Jana
- School of Materials Science , Indian Association for the Cultivation of Science , Kolkata 700032 , India
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11
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Abstract
Drug delivery systems are molecular platforms in which an active compound is packed into or loaded on a biocompatible nanoparticle. Such a solution improves the activity of the applied drug or decreases its side effects. Dendrimers are promising molecular platforms for drug delivery due to their unique properties. These macromolecules are known for their defined size, shape, and molecular weight, as well as their monodispersity, the presence of the void space, tailorable structure, internalization by cells, selectivity toward cells and intracellular components, protection of guest molecules, and controllable release of the cargo. Dendrimers were tested as carriers of various molecules and, simultaneously, their toxicity was examined using different cell lines. It was discovered that, in general, dendrimer cytotoxicity depended on the generation, the number of surface groups, and the nature of terminal moieties (anionic, neutral, or cationic). Higher cytotoxicity occurred for higher-generation dendrimers and for dendrimers with positive charges on the surface. In order to decrease the cytotoxicity of dendrimers, scientists started to introduce different chemical modifications on the periphery of the nanomolecule. Dendrimers grafted with polyethylene glycol (PEG), acetyl groups, carbohydrates, and other moieties did not affect cell viability, or did so only slightly, while still maintaining other advantageous properties. Dendrimers clearly have great potential for wide utilization as drug and gene carriers. Moreover, some dendrimers have biological properties per se, being anti-fungal, anti-bacterial, or toxic to cancer cells without affecting normal cells. Therefore, intrinsic cytotoxicity is a comprehensive problem and should be considered individually depending on the potential destination of the nanoparticle.
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12
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Ray P, Alhalhooly L, Ghosh A, Choi Y, Banerjee S, Mallik S, Banerjee S, Quadir M. Size-Transformable, Multifunctional Nanoparticles from Hyperbranched Polymers for Environment-Specific Therapeutic Delivery. ACS Biomater Sci Eng 2019; 5:1354-1365. [DOI: 10.1021/acsbiomaterials.8b01608] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
| | | | - Arnab Ghosh
- Cancer Research Unit, VA Medical Center, Kansas City, Missouri 64128, United States
- Department of Pathology and Laboratory Medicine, University of Kansas Medical Center, Kansas City, Kansas 66160, United States
| | | | - Sushanta Banerjee
- Cancer Research Unit, VA Medical Center, Kansas City, Missouri 64128, United States
- Department of Pathology and Laboratory Medicine, University of Kansas Medical Center, Kansas City, Kansas 66160, United States
| | | | - Snigdha Banerjee
- Cancer Research Unit, VA Medical Center, Kansas City, Missouri 64128, United States
- Department of Pathology and Laboratory Medicine, University of Kansas Medical Center, Kansas City, Kansas 66160, United States
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13
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Dou X, Meints GA, Sedaghat-Herati R. New Insights into the Interactions of a DNA Oligonucleotide with mPEGylated-PAMAM by Circular Dichroism and Solution NMR. J Phys Chem B 2019; 123:666-674. [PMID: 30562015 DOI: 10.1021/acs.jpcb.8b08517] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Dendrimers are well-defined, highly branched, synthetic three-dimensional molecules with a large number of reactive end groups. PAMAM dendrimers form stable complexes with DNA chemistries and constitute an important class of nonviral, cationic vectors in gene delivery. The aim of this study is to examine the interactions of a 12 bp DNA oligonucletide with PAMAM-G2 and mPEG- b-PAMAM-G3 having eight surface amine groups under physiological conditions, using constant DNA concentration but varying dendrimer concentration. 1D 31P NMR, 2D NOESY, and CD spectroscopic methods were employed to investigate the interactions between the dendrimer and the DNA. The CD experiments carried out with a constant DNA concentration of 25 μM and dendrimer concentrations from 0 to 100 μM indicated minimal change to the chirality of the DNA for both types of dendrimers. While the PAMAM-G2 dendrimer caused aggregation of the majority of the DNA, the 2D NMR data of the DNA with an mPEG- b-PAMAM-G3 dendrimer indicated general broadening of the 1D 31P peaks from the DNA phosphates, a small number of 1H chemical shift perturbations (CSPs), and reduction of specific 1H-1H NOE intensities. These data suggest there is minimal structural alteration of the DNA in the complex and indicate preferential binding of the dendrimer to the central AATT region of the DNA sequence. The results herein are the first such results demonstrating a soluble DNA complex with the mPEG- b-PAMAM-G3 dendrimer analyzed by multidimensional NMR.
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Affiliation(s)
- Xiaozheng Dou
- Department of Chemistry , Missouri State University , Springfield , Missouri 65897 , United States
| | - Gary A Meints
- Department of Chemistry , Missouri State University , Springfield , Missouri 65897 , United States
| | - Reza Sedaghat-Herati
- Department of Chemistry , Missouri State University , Springfield , Missouri 65897 , United States
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14
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Dong Y, Yu T, Ding L, Laurini E, Huang Y, Zhang M, Weng Y, Lin S, Chen P, Marson D, Jiang Y, Giorgio S, Pricl S, Liu X, Rocchi P, Peng L. A Dual Targeting Dendrimer-Mediated siRNA Delivery System for Effective Gene Silencing in Cancer Therapy. J Am Chem Soc 2018; 140:16264-16274. [PMID: 30346764 DOI: 10.1021/jacs.8b10021] [Citation(s) in RCA: 136] [Impact Index Per Article: 22.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Small interfering RNA (siRNA) is emerging as a novel therapeutic for treating various diseases, provided a safe and efficient delivery is available. In particular, specific delivery to target cells is critical for achieving high therapeutic efficacy while reducing toxicity. Amphiphilic dendrimers are emerging as novel promising carriers for siRNA delivery by virtue of the combined multivalent cooperativity of dendrimers with the self-assembling property of lipid vectors. Here, we report a ballistic approach for targeted siRNA delivery to cancer cells using an amphiphilic dendrimer equipped with a dual targeting peptide bearing an RGDK warhead. According to the molecular design, the amphiphilic dendrimer was expected to deliver siRNA effectively, while the aim of the targeting peptide was to home in on tumors via interaction of its warhead with integrin and the neuropilin-1 receptor on cancer cells. Coating the positively charged siRNA/dendrimer delivery complex with the negatively charged segment of the targeting peptide via electrostatic interactions led to small and stable nanoparticles which were able to protect siRNA from degradation while maintaining the accessibility of RGDK for targeting cancer cells and preserving the ability of the siRNA to escape from endosomes. The targeted system had enhanced siRNA delivery, stronger gene silencing, and more potent anticancer activity compared to nontargeted or covalent dendrimer-based systems. In addition, neither acute toxicity nor induced inflammation was observed. Consequently, this delivery system constitutes a promising nonviral vector for targeted delivery and can be further developed to provide RNAi-based personalized medicine against cancer. Our study also gives new perspectives on the use of nanotechnology based on self-assembling dendrimers in various biomedical applications.
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Affiliation(s)
- Yiwen Dong
- State Key Laboratory of Natural Medicines and Jiangsu Key Laboratory of Drug Discovery for Metabolic Diseases, Center of Drug Discovery, Center of Advanced Pharmaceutics and Biomaterials , China Pharmaceutical University , 24 Tong Jia Xiang , 210009 Nanjing , People's Republic of China
| | - Tianzhu Yu
- Aix-Marseille Université , CNRS, Centre Interdisciplinaire de Nanoscience de Marseille, UMR 7325, "Equipe Labellisée Ligue Contre le Cancer", 13288 Marseille , France
| | - Ling Ding
- Aix-Marseille Université , CNRS, Centre Interdisciplinaire de Nanoscience de Marseille, UMR 7325, "Equipe Labellisée Ligue Contre le Cancer", 13288 Marseille , France
| | - Erik Laurini
- Molecular Biology and Nanotechnology Laboratory (MolBNL@UniTS), DEA , University of Trieste , 34127 Trieste , Italy
| | - Yuanyu Huang
- Advanced Research Institute of Multidisciplinary Science and School of Life Science , Beijing Institute of Technology , Beijing 100081 , People's Republic of China.,School of Pharmacy , Hunan University of Chinese Medicine , Changsha 410208 , People's Republic of China
| | - Mengjie Zhang
- Advanced Research Institute of Multidisciplinary Science and School of Life Science , Beijing Institute of Technology , Beijing 100081 , People's Republic of China
| | - Yuhua Weng
- Advanced Research Institute of Multidisciplinary Science and School of Life Science , Beijing Institute of Technology , Beijing 100081 , People's Republic of China
| | - Shuting Lin
- State Key Laboratory of Natural Medicines and Jiangsu Key Laboratory of Drug Discovery for Metabolic Diseases, Center of Drug Discovery, Center of Advanced Pharmaceutics and Biomaterials , China Pharmaceutical University , 24 Tong Jia Xiang , 210009 Nanjing , People's Republic of China
| | - Peng Chen
- State Key Laboratory of Natural Medicines and Jiangsu Key Laboratory of Drug Discovery for Metabolic Diseases, Center of Drug Discovery, Center of Advanced Pharmaceutics and Biomaterials , China Pharmaceutical University , 24 Tong Jia Xiang , 210009 Nanjing , People's Republic of China
| | - Domenico Marson
- Molecular Biology and Nanotechnology Laboratory (MolBNL@UniTS), DEA , University of Trieste , 34127 Trieste , Italy
| | - Yifan Jiang
- Aix-Marseille Université , CNRS, Centre Interdisciplinaire de Nanoscience de Marseille, UMR 7325, "Equipe Labellisée Ligue Contre le Cancer", 13288 Marseille , France
| | - Suzanne Giorgio
- Aix-Marseille Université , CNRS, Centre Interdisciplinaire de Nanoscience de Marseille, UMR 7325, "Equipe Labellisée Ligue Contre le Cancer", 13288 Marseille , France
| | - Sabrina Pricl
- Molecular Biology and Nanotechnology Laboratory (MolBNL@UniTS), DEA , University of Trieste , 34127 Trieste , Italy
| | - Xiaoxuan Liu
- State Key Laboratory of Natural Medicines and Jiangsu Key Laboratory of Drug Discovery for Metabolic Diseases, Center of Drug Discovery, Center of Advanced Pharmaceutics and Biomaterials , China Pharmaceutical University , 24 Tong Jia Xiang , 210009 Nanjing , People's Republic of China.,Aix-Marseille Université , CNRS, Centre Interdisciplinaire de Nanoscience de Marseille, UMR 7325, "Equipe Labellisée Ligue Contre le Cancer", 13288 Marseille , France
| | - Palma Rocchi
- Inserm, Aix-Marseille Université , Institut Paoli-Calmettes, CNRS, CRCM, 13009 Marseille , France
| | - Ling Peng
- Aix-Marseille Université , CNRS, Centre Interdisciplinaire de Nanoscience de Marseille, UMR 7325, "Equipe Labellisée Ligue Contre le Cancer", 13288 Marseille , France
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15
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Cao J, Ge R, Zhang M, Xia J, Han S, Lu W, Liang Y, Zhang T, Sun Y. A triple modality BSA-coated dendritic nanoplatform for NIR imaging, enhanced tumor penetration and anticancer therapy. NANOSCALE 2018; 10:9021-9037. [PMID: 29717725 DOI: 10.1039/c7nr09552j] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
Functional theranostic systems for drug delivery capable of concurrent near-infrared (NIR) fluorescence imaging, active tumor targeting and anticancer therapies are desired for concise cancer diagnosis and treatment. Dendrimers with controllable size and surface functionalities are good candidates for such platforms. However, integration of active targeting ligands and imaging agents separately on the surface or encapsulation of the imaging agents in the inner core of the dendrimers will result in a more complex composition or reduced drug loading efficiency. Herein, we reported a PAMAM-based theranostic system, with a simple integrin-specific imaging ligand prepared from two motifs. One motif is a NIR carbocyanine fluorescent dye (Cyp) for precise in vivo monitoring of the system and identification of tumor or cancer cells, and the other is a novel tumor-penetrating cyclic peptide (CRGDKGPDC, abbreviated iRGD). BSA was non-covalently bonded with Cyp to reduce NIR agent fluorescence-quenching aggregates and enhance imaging signals. The chemotherapy effect of these dendritic systems was achieved by encapsulating paclitaxel into the hydrophobic interior of the dendrimers. In vitro and in vivo targeting and penetrating studies revealed that a significantly high amount of the dendritic systems was endocytosed by HepG2 cells and enhanced accumulation and penetration at tumor sites. Our safety evaluation showed that masking of cationic-end groups of PAMAM to neutral or anionic groups has resulted in decreased or even zero-toxicity. The preliminary antitumor efficacy of the dendritic system was evaluated. In vitro and in vivo studies confirmed that paclitaxel-encapsulated functionalized PAMAM can efficiently kill HepG2 cancer cells. In conclusion, our functionalized theranostic dendritic system could be a promising nanocarrier to effectively deliver drugs to deep tumor regions for anticancer therapy.
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Affiliation(s)
- Jie Cao
- Department of Pharmaceutics, School of Pharmacy, Qingdao University, Qingdao, 266021, China.
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16
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Zhou K, Kos P, Yan Y, Xiong H, Min YL, Kinghorn KA, Minnig JT, Miller JB, Siegwart DJ. Intercalation-mediated nucleic acid nanoparticles for siRNA delivery. Chem Commun (Camb) 2018; 52:12155-12158. [PMID: 27711272 DOI: 10.1039/c6cc06024b] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Tremendous effort has been made to improve stability and delivery efficacy of small RNA therapeutics. However, nearly all current nano-encapsulation carriers utilize the critical balance between only two interacting parameters: RNA-binding electrostatic interactions and nanoparticle-stabilizing hydrophobic interactions. We report the development of intercalation-meditated nucleic acid (IMNA) nanoparticles, which utilize intercalation as a third interaction to enhance small RNA delivery. This toolbox expansion of interaction parameters may inspire the use of additional forces in nanoparticle drug carriers to increase potency and stability.
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Affiliation(s)
- Kejin Zhou
- The University of Texas Southwestern Medical Center, Simmons Comprehensive Cancer Center, Department of Biochemistry, Dallas, Texas 75390, USA.
| | - Petra Kos
- The University of Texas Southwestern Medical Center, Simmons Comprehensive Cancer Center, Department of Biochemistry, Dallas, Texas 75390, USA.
| | - Yunfeng Yan
- The University of Texas Southwestern Medical Center, Simmons Comprehensive Cancer Center, Department of Biochemistry, Dallas, Texas 75390, USA.
| | - Hu Xiong
- The University of Texas Southwestern Medical Center, Simmons Comprehensive Cancer Center, Department of Biochemistry, Dallas, Texas 75390, USA.
| | - Yi-Li Min
- The University of Texas Southwestern Medical Center, Simmons Comprehensive Cancer Center, Department of Biochemistry, Dallas, Texas 75390, USA.
| | - Karina A Kinghorn
- The University of Texas Southwestern Medical Center, Simmons Comprehensive Cancer Center, Department of Biochemistry, Dallas, Texas 75390, USA.
| | - Jonathan T Minnig
- The University of Texas Southwestern Medical Center, Simmons Comprehensive Cancer Center, Department of Biochemistry, Dallas, Texas 75390, USA.
| | - Jason B Miller
- The University of Texas Southwestern Medical Center, Simmons Comprehensive Cancer Center, Department of Biochemistry, Dallas, Texas 75390, USA.
| | - Daniel J Siegwart
- The University of Texas Southwestern Medical Center, Simmons Comprehensive Cancer Center, Department of Biochemistry, Dallas, Texas 75390, USA.
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17
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Chang DC, Zhang YM, Zhang J, Liu YH, Yu XQ. Cationic lipids with a cyclen headgroup: synthesis and structure–activity relationship studies as non-viral gene vectors. RSC Adv 2017. [DOI: 10.1039/c7ra00422b] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
The structure–activity relationships of cyclen-based cationic lipids as non-viral gene delivery vectors were studied and clarified.
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Affiliation(s)
- De-Chun Chang
- Key Laboratory of Green Chemistry and Technology (Ministry of Education)
- College of Chemistry
- Sichuan University
- Chengdu 610064
- PR China
| | - Yi-Mei Zhang
- 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
| | - Yan-Hong Liu
- Key Laboratory of Green Chemistry and Technology (Ministry of Education)
- College of Chemistry
- Sichuan University
- Chengdu 610064
- PR China
| | - Xiao-Qi Yu
- Key Laboratory of Green Chemistry and Technology (Ministry of Education)
- College of Chemistry
- Sichuan University
- Chengdu 610064
- PR China
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18
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Deiana M, Pokladek Z, Matczyszyn K, Mlynarz P, Buckle M, Samoc M. Effective control of the intrinsic DNA morphology by photosensitive polyamines. J Mater Chem B 2017; 5:1028-1038. [DOI: 10.1039/c6tb02732f] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Changes occurring in the intrinsic B-DNA morphology upon binding to molecular photoswitches.
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Affiliation(s)
- M. Deiana
- Advanced Materials Engineering and Modelling Group
- Faculty of Chemistry
- Wroclaw University of Science and Technology
- 50-370 Wroclaw
- Poland
| | - Z. Pokladek
- Department of Bioorganic Chemistry
- Faculty of Chemistry
- Wroclaw University of Science and Technology
- 50-370 Wroclaw
- Poland
| | - K. Matczyszyn
- Advanced Materials Engineering and Modelling Group
- Faculty of Chemistry
- Wroclaw University of Science and Technology
- 50-370 Wroclaw
- Poland
| | - P. Mlynarz
- Department of Bioorganic Chemistry
- Faculty of Chemistry
- Wroclaw University of Science and Technology
- 50-370 Wroclaw
- Poland
| | - M. Buckle
- LBPA
- ENS Cachan
- CNRS Université Paris-Saclay
- Cachan
- France
| | - M. Samoc
- Advanced Materials Engineering and Modelling Group
- Faculty of Chemistry
- Wroclaw University of Science and Technology
- 50-370 Wroclaw
- Poland
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19
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Serenko O, Strashnov P, Kapustin G, Kalinin M, Kuchkina N, Serkova E, Shifrina Z, Muzafarov A. Adsorption properties of pyridylphenylene dendrimers. RSC Adv 2017. [DOI: 10.1039/c6ra27064f] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
Sorption and surface properties study of the first three generations of polypyridylphenylene dendrimers.
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Affiliation(s)
- Olga Serenko
- A. N. Nesmeyanov Institute of Organoelement Compounds
- Russian Academy of Sciences
- Moscow 119991
- Russia
| | - Pavel Strashnov
- A. N. Nesmeyanov Institute of Organoelement Compounds
- Russian Academy of Sciences
- Moscow 119991
- Russia
| | - Gennadiy Kapustin
- N. D. Zelinsky Institute of Organic Chemistry
- Russian Academy of Sciences
- Moscow 119991
- Russia
| | - Mikhail Kalinin
- Moscow State University of Design and Technology
- Moscow 117997
- Russia
| | - Nina Kuchkina
- A. N. Nesmeyanov Institute of Organoelement Compounds
- Russian Academy of Sciences
- Moscow 119991
- Russia
| | - Elena Serkova
- A. N. Nesmeyanov Institute of Organoelement Compounds
- Russian Academy of Sciences
- Moscow 119991
- Russia
| | - Zinaida Shifrina
- A. N. Nesmeyanov Institute of Organoelement Compounds
- Russian Academy of Sciences
- Moscow 119991
- Russia
| | - Aziz Muzafarov
- A. N. Nesmeyanov Institute of Organoelement Compounds
- Russian Academy of Sciences
- Moscow 119991
- Russia
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20
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Ni R, Zhou J, Hossain N, Chau Y. Virus-inspired nucleic acid delivery system: Linking virus and viral mimicry. Adv Drug Deliv Rev 2016; 106:3-26. [PMID: 27473931 DOI: 10.1016/j.addr.2016.07.005] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2016] [Revised: 07/02/2016] [Accepted: 07/20/2016] [Indexed: 12/21/2022]
Abstract
Targeted delivery of nucleic acids into disease sites of human body has been attempted for decades, but both viral and non-viral vectors are yet to meet our expectations. Safety concerns and low delivery efficiency are the main limitations of viral and non-viral vectors, respectively. The structure of viruses is both ordered and dynamic, and is believed to be the key for effective transfection. Detailed understanding of the physical properties of viruses, their interaction with cellular components, and responses towards cellular environments leading to transfection would inspire the development of safe and effective non-viral vectors. To this goal, this review systematically summarizes distinctive features of viruses that are implied for efficient nucleic acid delivery but not yet fully explored in current non-viral vectors. The assembly and disassembly of viral structures, presentation of viral ligands, and the subcellular targeting of viruses are emphasized. Moreover, we describe the current development of cationic material-based viral mimicry (CVM) and structural viral mimicry (SVM) in these aspects. In light of the discrepancy, we identify future opportunities for rational design of viral mimics for the efficient delivery of DNA and RNA.
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Affiliation(s)
- Rong Ni
- Division of Biomedical Engineering, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China; Institute for Advanced Study, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
| | - Junli Zhou
- Department of Chemical and Biomolecular Engineering, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
| | - Naushad Hossain
- Division of Biomedical Engineering, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
| | - Ying Chau
- Department of Chemical and Biomolecular Engineering, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China; Division of Biomedical Engineering, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China.
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21
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Rezaei A, Akhavan O, Hashemi E, Shamsara M. Toward Chemical Perfection of Graphene-Based Gene Carrier via Ugi Multicomponent Assembly Process. Biomacromolecules 2016; 17:2963-71. [PMID: 27499268 DOI: 10.1021/acs.biomac.6b00767] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
The graphene-based materials with unique, versatile, and tunable properties have brought new opportunities for the leading edge of advanced nanobiotechnology. In this regard, the use of graphene in gene delivery applications is still at early stages. In this study, we successfully designed a new complex of carboxylated-graphene (G-COOH) with ethidium bromide (EtBr) and used it as a nanovector for efficient gene delivery into the AGS cells. G-COOH, with carboxyl functions on its surface, in the presence of EtBr, formaldehyde, and cyclohexylisocyanide were participated in Ugi four component reaction to fabricate a stable amphiphilic graphene-EtBr (AG-EtBr) composite. The coupling reaction was confirmed by further analyses with FT-IR, AFM, UV-vis, Raman, photoluminescence, EDS, and XPS. The AG-EtBr nanocomposite was able to interact with a plasmid DNA (pDNA). This nanocomposite has been applied for transfection of cultured mammalian cells successfully. Moreover, the AG-EtBr composites showed a remarkable decreased cytotoxicity in compared to EtBr. Interestingly, the advantages of AG-EtBr in cell transfection are more dramatic (3-fold higher) than Lipofectamine2000 as a commercial nonviral vector. To the best of our knowledge, this is the first report in which EtBr is used as an intercalating agent along with graphene to serve as a new vehicle for gene delivery application.
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Affiliation(s)
- Aram Rezaei
- Department of Physics, Sharif University of Technology , P.O. Box 11155-9161, Tehran, Iran.,Nano Drug Delivery Research Center, Kermanshah University of Medical Sciences , Kermanshah, Iran.,National Research Center for Transgenic Mouse and Animal Biotechnology Division, National Institute of Genetic Engineering and Biotechnology , P.O. Box 14965-161, Tehran, Iran
| | - Omid Akhavan
- Department of Physics, Sharif University of Technology , P.O. Box 11155-9161, Tehran, Iran.,Institute for Nanoscience and Nanotechnology, Sharif University of Technology , P.O. Box 14588-89694, Tehran, Iran
| | - Ehsan Hashemi
- National Research Center for Transgenic Mouse and Animal Biotechnology Division, National Institute of Genetic Engineering and Biotechnology , P.O. Box 14965-161, Tehran, Iran
| | - Mehdi Shamsara
- National Research Center for Transgenic Mouse and Animal Biotechnology Division, National Institute of Genetic Engineering and Biotechnology , P.O. Box 14965-161, Tehran, Iran
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22
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Kim JB, Lee YM, Ryu J, Lee E, Kim WJ, Keum G, Bang EK. Coordinative Amphiphiles as Tunable siRNA Transporters. Bioconjug Chem 2016; 27:1850-6. [DOI: 10.1021/acs.bioconjchem.6b00260] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Jin Bum Kim
- Center
for Neuro-Medicine, Brain Science Institute, Korea Institute of Science and Technology, 5 Hwarang-ro 14-gil, Seongbuk-gu, Seoul 02792, Republic of Korea
| | - Yeong Mi Lee
- Center
for Self-Assembly and Complexity, Institute for Basic Science (IBS),
and Department of Chemistry, Pohang University of Science and Technology, 77 Cheongam-ro, Nam-gu, Pohang 37673, Republic of Korea
| | - Jooyeon Ryu
- Graduate
School of Analytical Science and Technology, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon 34134, Republic of Korea
| | - Eunji Lee
- Graduate
School of Analytical Science and Technology, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon 34134, Republic of Korea
| | - Won Jong Kim
- Center
for Self-Assembly and Complexity, Institute for Basic Science (IBS),
and Department of Chemistry, Pohang University of Science and Technology, 77 Cheongam-ro, Nam-gu, Pohang 37673, Republic of Korea
| | - Gyochang Keum
- Center
for Neuro-Medicine, Brain Science Institute, Korea Institute of Science and Technology, 5 Hwarang-ro 14-gil, Seongbuk-gu, Seoul 02792, Republic of Korea
| | - Eun-Kyoung Bang
- Center
for Neuro-Medicine, Brain Science Institute, Korea Institute of Science and Technology, 5 Hwarang-ro 14-gil, Seongbuk-gu, Seoul 02792, Republic of Korea
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23
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Junquera E, Aicart E. Recent progress in gene therapy to deliver nucleic acids with multivalent cationic vectors. Adv Colloid Interface Sci 2016; 233:161-175. [PMID: 26265376 DOI: 10.1016/j.cis.2015.07.003] [Citation(s) in RCA: 78] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2015] [Revised: 07/10/2015] [Accepted: 07/12/2015] [Indexed: 12/16/2022]
Abstract
Due to the potential use as transfecting agents of nucleic acids (DNA or RNA), multivalent cationic non-viral vectors have received special attention in the last decade. Much effort has been addressed to synthesize more efficient and biocompatible gene vectors able to transport nucleic acids into the cells without provoking an immune response. Among them, the mostly explored to compact and transfect nucleic acids are: (a) gemini and multivalent cationic lipids, mixed with a helper lipid, by forming lipoplexes; and (b) cationic polymers, polycations, and polyrotaxanes, by forming polyplexes. This review is focused on the progress and recent advances experimented in this area, mainly during the present decade, devoting special attention to the lipoplexes and polyplexes, as follows: (a) to its biophysical characterization (mainly electrostatics, structure, size and morphology) using a wide variety of experimental methods; and (b) to its biological activity (transfection efficacy and cytotoxicity) addressed to confirm the optimum formulations and viability of these complexes as very promising gene vectors of nucleic acids in nanomedicine.
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Affiliation(s)
- Elena Junquera
- Grupo de Química Coloidal y Supramolecular, Departamento de Química Física I, Facultad de Ciencias Químicas, Universidad Complutense, 28040 Madrid, Spain
| | - Emilio Aicart
- Grupo de Química Coloidal y Supramolecular, Departamento de Química Física I, Facultad de Ciencias Químicas, Universidad Complutense, 28040 Madrid, Spain.
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24
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Beztsinna N, Solé M, Taib N, Bestel I. Bioengineered riboflavin in nanotechnology. Biomaterials 2016; 80:121-133. [DOI: 10.1016/j.biomaterials.2015.11.050] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2015] [Revised: 11/16/2015] [Accepted: 11/29/2015] [Indexed: 12/15/2022]
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25
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Wong PT, Chen D, Tang S, Yanik S, Payne M, Mukherjee J, Coulter A, Tang K, Tao K, Sun K, Baker JR, Choi SK. Modular Integration of Upconverting Nanocrystal-Dendrimer Composites for Folate Receptor-Specific NIR Imaging and Light-Triggered Drug Release. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2015; 11:6078-6090. [PMID: 26476917 DOI: 10.1002/smll.201501575] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/03/2015] [Revised: 07/13/2015] [Indexed: 06/05/2023]
Abstract
Upconversion nanocrystals (UCNs) display near-infrared (NIR)-responsive photoluminescent properties for NIR imaging and drug delivery. The development of effective strategies for UCN integration with other complementary nanostructures for targeting and drug conjugation is highly desirable. This study reports on a core/shell-based theranostic system designed by UCN integration with a folate (FA)-conjugated dendrimer for tumor targeting and with photocaged doxorubicin as a cytotoxic agent. Two types of UCNs (NaYF4:Yb/Er (or Yb/Tm); diameter = ≈50 to 54 nm) are described, each displaying distinct emission properties upon NIR (980 nm) excitation. The UCNs are surface modified through covalent attachment of photocaged doxorubicin (ONB-Dox) and a multivalent FA-conjugated polyamidoamine (PAMAM) dendrimer G5(FA)6 to prepare UCN@(ONB-Dox)(G5FA). Surface plasmon resonance experiments performed with G5(FA)6 dendrimer alone show nanomolar binding avidity (KD = 5.9 × 10(-9) M) to the folate binding protein. This dendrimer binding corresponds with selective binding and uptake of UCN@(ONB-Dox)(G5FA) by FAR-positive KB carcinoma cells in vitro. Furthermore, UCN@(ONB-Dox)(G5FA) treatment of FAR(+) KB cells inhibits cell growth in a light dependent manner. These results validate the utility of modularly integrated UCN-dendrimer nanocomposites for cell type specific NIR imaging and light-controlled drug release, thus serving as a new theranostic system.
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Affiliation(s)
- Pamela T Wong
- Michigan Nanotechnology Institute for Medicine and Biological Sciences, Department of Internal Medicine, University of Michigan Medical School, Ann Arbor, MI, 48109, USA
| | - Dexin Chen
- State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China
| | - Shengzhuang Tang
- Michigan Nanotechnology Institute for Medicine and Biological Sciences, Department of Internal Medicine, University of Michigan Medical School, Ann Arbor, MI, 48109, USA
| | - Sean Yanik
- Michigan Nanotechnology Institute for Medicine and Biological Sciences, Department of Internal Medicine, University of Michigan Medical School, Ann Arbor, MI, 48109, USA
| | - Michael Payne
- Michigan Nanotechnology Institute for Medicine and Biological Sciences, Department of Internal Medicine, University of Michigan Medical School, Ann Arbor, MI, 48109, USA
| | - Jhindan Mukherjee
- Michigan Nanotechnology Institute for Medicine and Biological Sciences, Department of Internal Medicine, University of Michigan Medical School, Ann Arbor, MI, 48109, USA
| | - Alexa Coulter
- Michigan Nanotechnology Institute for Medicine and Biological Sciences, Department of Internal Medicine, University of Michigan Medical School, Ann Arbor, MI, 48109, USA
| | - Kenny Tang
- Michigan Nanotechnology Institute for Medicine and Biological Sciences, Department of Internal Medicine, University of Michigan Medical School, Ann Arbor, MI, 48109, USA
| | - Ke Tao
- State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China
| | - Kang Sun
- State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China
| | - James R Baker
- Michigan Nanotechnology Institute for Medicine and Biological Sciences, Department of Internal Medicine, University of Michigan Medical School, Ann Arbor, MI, 48109, USA
| | - Seok Ki Choi
- Michigan Nanotechnology Institute for Medicine and Biological Sciences, Department of Internal Medicine, University of Michigan Medical School, Ann Arbor, MI, 48109, USA
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26
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Mukherjee J, Wong PT, Tang S, Gam K, Coulter A, Baker JR, Choi SK. Mechanism of Cooperativity and Nonlinear Release Kinetics in Multivalent Dendrimer–Atropine Complexes. Mol Pharm 2015; 12:4498-508. [DOI: 10.1021/acs.molpharmaceut.5b00684] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Jhindan Mukherjee
- Michigan
Nanotechnology Institute
for Medicine and Biological Sciences, and Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Pamela T. Wong
- Michigan
Nanotechnology Institute
for Medicine and Biological Sciences, and Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Shengzhuang Tang
- Michigan
Nanotechnology Institute
for Medicine and Biological Sciences, and Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Kristina Gam
- Michigan
Nanotechnology Institute
for Medicine and Biological Sciences, and Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Alexa Coulter
- Michigan
Nanotechnology Institute
for Medicine and Biological Sciences, and Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - James R. Baker
- Michigan
Nanotechnology Institute
for Medicine and Biological Sciences, and Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Seok Ki Choi
- Michigan
Nanotechnology Institute
for Medicine and Biological Sciences, and Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan 48109, United States
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Folate-conjugated nanoparticles as a potent therapeutic approach in targeted cancer therapy. Tumour Biol 2015; 36:5727-42. [PMID: 26142733 DOI: 10.1007/s13277-015-3706-6] [Citation(s) in RCA: 79] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2015] [Accepted: 06/22/2015] [Indexed: 01/01/2023] Open
Abstract
The selective and efficient drug delivery to tumor cells can remarkably improve different cancer therapeutic approaches. There are several nanoparticles (NPs) which can act as a potent drug carrier for cancer therapy. However, the specific drug delivery to cancer cells is an important issue which should be considered before designing new NPs for in vivo application. It has been shown that cancer cells over-express folate receptor (FR) in order to improve their growth. As normal cells express a significantly lower levels of FR compared to tumor cells, it seems that folate molecules can be used as potent targeting moieties in different nanocarrier-based therapeutic approaches. Moreover, there is evidence which implies folate-conjugated NPs can selectively deliver anti-tumor drugs into cancer cells both in vitro and in vivo. In this review, we will discuss about the efficiency of different folate-conjugated NPs in cancer therapy.
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28
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Wong PT, Choi SK. Mechanisms of Drug Release in Nanotherapeutic Delivery Systems. Chem Rev 2015; 115:3388-432. [DOI: 10.1021/cr5004634] [Citation(s) in RCA: 349] [Impact Index Per Article: 38.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Pamela T. Wong
- Michigan
Nanotechnology Institute
for Medicine and Biological Sciences, Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Seok Ki Choi
- Michigan
Nanotechnology Institute
for Medicine and Biological Sciences, Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan 48109, United States
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29
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Leistra AN, Han JH, Tang S, Orr BG, Banaszak Holl MM, Choi SK, Sinniah K. Force spectroscopy of multivalent binding of riboflavin-conjugated dendrimers to riboflavin binding protein. J Phys Chem B 2015; 119:5785-92. [PMID: 25872803 DOI: 10.1021/acs.jpcb.5b01028] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Putative riboflavin receptors are considered as biomarkers due to their overexpression in breast and prostate cancers. Hence, these receptors can be potentially exploited for use in targeted drug delivery systems where dendrimer nanoparticles with multivalent ligand attachments can lead to greater specificity in cellular interactions. In this study, the single molecule force spectroscopy technique was used to assess the physical strength of multivalent interactions by employing a riboflavin (RF)-conjugated generation 5 PAMAM dendrimer G5(RF)n nanoparticle. By varying the average RF ligand valency (n = 0, 3, 5), the rupture force was measured between G5(RF)n and the riboflavin binding protein (RFBP). The rupture force increased when the valency of RF increased. We observed at the higher valency (n = 5) three binding events that increased in rupture force with increasing loading rate. Assuming a single energy barrier, the Bell-Evans model was used to determine the kinetic off-rate and barrier width for all binding interactions. The analysis of our results appears to indicate that multivalent interactions are resulting in changes to rupture force and kinetic off-rates.
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Affiliation(s)
| | | | - Shengzhuang Tang
- ‡Michigan Nanotechnology Institute for Medicine and Biological Sciences, Ann Arbor, Michigan 48109, United States
| | - Bradford G Orr
- ‡Michigan Nanotechnology Institute for Medicine and Biological Sciences, Ann Arbor, Michigan 48109, United States.,⊥Department of Physics, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Mark M Banaszak Holl
- ‡Michigan Nanotechnology Institute for Medicine and Biological Sciences, Ann Arbor, Michigan 48109, United States.,§Department of Chemistry, University of Michigan, Ann Arbor, Michigan 48109, United States.,∥Department of Biomedical Engineering, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Seok Ki Choi
- ‡Michigan Nanotechnology Institute for Medicine and Biological Sciences, Ann Arbor, Michigan 48109, United States.,#Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan 48109, United States
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30
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Wong PT, Choi SK. Mechanisms and implications of dual-acting methotrexate in folate-targeted nanotherapeutic delivery. Int J Mol Sci 2015; 16:1772-90. [PMID: 25590303 PMCID: PMC4307333 DOI: 10.3390/ijms16011772] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2014] [Accepted: 01/05/2015] [Indexed: 01/05/2023] Open
Abstract
The rational design of a nanoplatform in drug delivery plays a crucial role in determining its targeting specificity and efficacy in vivo. A conventional approach relies on the surface conjugation of a nanometer-sized particle with two functionally distinct types of molecules, one as a targeting ligand, and the other as a therapeutic agent to be delivered to the diseased cell. However, an alternative simplified approach can be used, in which a single type of molecule displaying dual function as both a targeting ligand and therapeutic agent is conjugated to the nanoparticle. In this review, we evaluate the validity of this new strategy by using methotrexate, which displays multifunctional mechanisms of action. Methotrexate binds to the folate receptor, a surface biomarker frequently overexpressed in tumor cells, and also inhibits dihydrofolate reductase, an enzyme critical for cell survival and division. Thus we describe a series of fifth generation poly(amido amine) dendrimers conjugated with methotrexate, and discuss several lines of evidence supporting the efficacy of this new platform strategy based on surface plasmon resonance spectroscopy, enzyme activity assays, and cell-based studies with folate receptor (+) KB cancer cells.
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Affiliation(s)
- Pamela T Wong
- Department of Internal Medicine, Michigan Nanotechnology Institute for Medicine and Biological Sciences, University of Michigan Medical School, Ann Arbor, MI 48109, USA.
| | - Seok Ki Choi
- Department of Internal Medicine, Michigan Nanotechnology Institute for Medicine and Biological Sciences, University of Michigan Medical School, Ann Arbor, MI 48109, USA.
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31
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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.
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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)
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32
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Wong PT, Tang S, Tang K, Coulter A, Mukherjee J, Gam K, Baker JR, Choi SK. A lipopolysaccharide binding heteromultivalent dendrimer nanoplatform for Gram negative cell targeting. J Mater Chem B 2015; 3:1149-1156. [DOI: 10.1039/c4tb01690d] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Heteromultivalent design of PAMAM dendrimer by conjugation with polymyxin B (PMB) ligand and excess auxiliary ethanolamine (EA) branches led to lipopolysaccharide (LPS) avidity two orders of magnitude greater than free PMB.
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Affiliation(s)
- Pamela T. Wong
- Michigan Nanotechnology Institute for Medicine and Biological Sciences
- University of Michigan
- Ann Arbor
- USA
- Department of Internal Medicine
| | - Shengzhuang Tang
- Michigan Nanotechnology Institute for Medicine and Biological Sciences
- University of Michigan
- Ann Arbor
- USA
- Department of Internal Medicine
| | - Kenny Tang
- Michigan Nanotechnology Institute for Medicine and Biological Sciences
- University of Michigan
- Ann Arbor
- USA
| | - Alexa Coulter
- Michigan Nanotechnology Institute for Medicine and Biological Sciences
- University of Michigan
- Ann Arbor
- USA
| | - Jhindan Mukherjee
- Michigan Nanotechnology Institute for Medicine and Biological Sciences
- University of Michigan
- Ann Arbor
- USA
- Department of Internal Medicine
| | - Kristina Gam
- Michigan Nanotechnology Institute for Medicine and Biological Sciences
- University of Michigan
- Ann Arbor
- USA
| | - James R. Baker
- Michigan Nanotechnology Institute for Medicine and Biological Sciences
- University of Michigan
- Ann Arbor
- USA
- Department of Internal Medicine
| | - Seok Ki Choi
- Michigan Nanotechnology Institute for Medicine and Biological Sciences
- University of Michigan
- Ann Arbor
- USA
- Department of Internal Medicine
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