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Adokoh CK, Boadu A, Asiamah I, Agoni C. Synthesis and characterization of gold(I) thiolate derivatives and bimetallic complexes for HIV inhibition. Front Chem 2024; 12:1424019. [PMID: 39119520 PMCID: PMC11306053 DOI: 10.3389/fchem.2024.1424019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2024] [Accepted: 07/01/2024] [Indexed: 08/10/2024] Open
Abstract
Introduction: The human immunodeficiency virus (HIV) remains a significant global health concern, with a reported high infection rate of 38.4 million cases globally; an estimated 2 million new infections and approximately 700,000 HIV/AIDS-related deaths were reported in 2021. Despite the advent of anti-retroviral therapy (ART), HIV/AIDS persists as a chronic disease. To combat this, several studies focus on developing inhibitors targeting various stages of the HIV infection cycle, including HIV-1 protease. This study aims to synthesize and characterize novel glyco diphenylphosphino metal complexes with potential HIV inhibitory properties. Method: A series of new gold(I) thiolate derivatives and three bimetallic complexes, incorporating amino phosphines and thiocarbohydrate as auxiliary ligands, were synthesized using procedures described by Jiang, et al. (2009) and Coetzee et al. (2007). Structural elucidation and purity assessment of the synthesized compounds (1-11) were conducted using micro-analysis, NMR, and infrared spectrometry. Results and Discussion: Using molecular modeling techniques, three of the metal complexes were identified as potential HIV protease inhibitors, exhibiting strong binding affinity interactions with binding pocket residues. These inhibitors demonstrated an ability to inhibit the flexibility of the flap regions of the HIV protease, similar to the known HIV protease inhibitor, darunavir. This study sheds light on the promising avenues for the development of novel therapeutic agents against HIV/AIDS.
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Affiliation(s)
- Christian K. Adokoh
- Department of Forensic Sciences, School of Biological Sciences, College of Agriculture and Natural Sciences, University of Cape Coast, Cape Coast, Ghana
| | - Akwasi Boadu
- Discipline of Pharmaceutical Sciences, School of Health Sciences, University of KwaZulu-Natal, Durban, South Africa
- Wesbury College of Science, KwaZuluNatal, South Africa
| | - Isaac Asiamah
- Department of Chemistry, School of Physical Sciences, College of Agriculture and Natural Sciences, University of Cape Coast, Cape Coast, Ghana
| | - Clement Agoni
- Discipline of Pharmaceutical Sciences, School of Health Sciences, University of KwaZulu-Natal, Durban, South Africa
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2
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Ke Q, Ulbricht M. In situ reactive coating of porous filtration membranes with functional polymer layers to integrate boron adsorber property. J Memb Sci 2022. [DOI: 10.1016/j.memsci.2022.120851] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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3
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Gao D, Asghar S, Ye J, Zhang M, Hu R, Wang Y, Huang L, Yuan C, Chen Z, Xiao Y. Dual-targeted enzyme-sensitive hyaluronic acid nanogels loading paclitaxel for the therapy of breast cancer. Carbohydr Polym 2022; 294:119785. [DOI: 10.1016/j.carbpol.2022.119785] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Revised: 06/09/2022] [Accepted: 06/23/2022] [Indexed: 11/02/2022]
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4
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Sahoo S, Raghavan A, Kumar A, Nandi D, Chakravarty AR. Biotin‐Appended Iron(III) Complexes of Curcumin for Targeted Photo‐Chemotherapy. Eur J Inorg Chem 2021. [DOI: 10.1002/ejic.202001174] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Somarupa Sahoo
- Department of Inorganic and Physical Chemistry Indian Institute of Science Bangalore 560012 Karnataka India
| | - Abinaya Raghavan
- Department of Biochemistry Indian Institute of Science Bangalore 560012 Karnataka India
| | - Arun Kumar
- Department of Inorganic and Physical Chemistry Indian Institute of Science Bangalore 560012 Karnataka India
| | - Dipankar Nandi
- Department of Biochemistry Indian Institute of Science Bangalore 560012 Karnataka India
| | - Akhil R. Chakravarty
- Department of Inorganic and Physical Chemistry Indian Institute of Science Bangalore 560012 Karnataka India
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5
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Carrizo AF, Argüello JE, Schmidt LC, Colomer JP. Thioglucopyranose Ligands Promote Phase‐Transfer of Cadmium Selenide Quantum Dots from Organic Solvents to Water. ChemistrySelect 2020. [DOI: 10.1002/slct.202003955] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Antonella F. Carrizo
- Department of Organic Chemistry INFIQC-CONICET-UNC Haya de la Torre esq. Medina Allende s/n Ciudad Universitaria Córdoba Argentina
| | - Juan E. Argüello
- Department of Organic Chemistry INFIQC-CONICET-UNC Haya de la Torre esq. Medina Allende s/n Ciudad Universitaria Córdoba Argentina
| | - Luciana C. Schmidt
- Department of Organic Chemistry INFIQC-CONICET-UNC Haya de la Torre esq. Medina Allende s/n Ciudad Universitaria Córdoba Argentina
| | - Juan P. Colomer
- Department of Organic Chemistry INFIQC-CONICET-UNC Haya de la Torre esq. Medina Allende s/n Ciudad Universitaria Córdoba Argentina
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6
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Bricout N, Chai F, Sobocinski J, Hertault A, Laure W, Ung A, Woisel P, Lyskawa J, Blanchemain N. Immobilisation of an anti-platelet adhesion and anti-thrombotic drug (EP224283) on polydopamine coated vascular stent promoting anti-thrombogenic properties. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 113:110967. [PMID: 32487386 DOI: 10.1016/j.msec.2020.110967] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2019] [Revised: 04/11/2020] [Accepted: 04/12/2020] [Indexed: 11/24/2022]
Abstract
Current vascular drug-eluting stents based on immuno-proliferative drugs would reduce the rate of in-stent restenosis (ISR) but may be associated with a higher risk of acute stent thrombosis due to non-selective activity. In this paper, we aimed to develop a polydopamine (PDA) coated chromium‑cobalt (CoCr) stent functionalised with EP224283 (Endotis Pharma SA), which combines both a GPIIbIIIa antagonist (tirofiban moiety) and a factor Xa inhibitor (idraparinux moiety) to reduce acute stent thrombosis. PDA-coated chromium‑cobalt (CoCr) samples were first immersed in a polyethylenimine (PEI, pH 8.5) solution to increase amine function density (36.0 ± 0.1 nmol/cm2) on the CoCr surface. In a second step, avidin was grafted onto CoCr-PDA-PEI through the biotin linkage (strategy 1) or directly by coupling reactions (strategy 2). The HABA titration proved the fixation of biotin onto CoCr-PDA-PEI surface with a density of 0.74 nmol/cm2. The fixation of avidin was demonstrated by water contact angle (WCA) and surface plasmon resonance (SPR). SEM micrograph shows the flexibility of the thin layer coated onto the stent after balloon inflation. Independently of the strategy, a qualitative SEM analysis showed a reduction in platelet activation when the molecule EP224283 was immobilised on avidin. In parallel, the measurement of anticoagulant activity (anti-Xa) revealed a higher anti-factor Xa activity (2.24 IU/mL vs. 0.09 IU/mL in control) when EP224283 was immobilised on avidin. Interestingly, after seven days of degradation, the anticoagulant activity was persistent in both strategies and looked more important with the strategy 2 than in strategy 1. Throughout this work, we developed an innovative vascular stent through the immobilisation of EP224283 onto CoCr-PDA-PEI-(avidin) system, which provides a promising solution to reduce ISR and thrombosis after stent implantation.
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Affiliation(s)
- Nicolas Bricout
- Univ. Lille, Inserm, CHU Lille, U1008 - Controlled Drug Delivery Systems and Biomaterials, F-59000 Lille, France
| | - Feng Chai
- Univ. Lille, Inserm, CHU Lille, U1008 - Controlled Drug Delivery Systems and Biomaterials, F-59000 Lille, France
| | - Jonathan Sobocinski
- Univ. Lille, Inserm, CHU Lille, U1008 - Controlled Drug Delivery Systems and Biomaterials, F-59000 Lille, France
| | - Adrien Hertault
- Univ. Lille, Inserm, CHU Lille, U1008 - Controlled Drug Delivery Systems and Biomaterials, F-59000 Lille, France
| | - William Laure
- Univ. Lille, CNRS, INRAE, Centrale Lille, UMR 8207 - UMET - Unité Matériaux et Transformations, F-59000 Lille, France
| | - Alexandre Ung
- Service Hémostase, Regional Hospital Center University of Lille (CHRU-Lille), 2 Avenue Oscar Lambret, 59000 Lille, France
| | - Patrice Woisel
- Univ. Lille, CNRS, INRAE, Centrale Lille, UMR 8207 - UMET - Unité Matériaux et Transformations, F-59000 Lille, France
| | - Joel Lyskawa
- Univ. Lille, CNRS, INRAE, Centrale Lille, UMR 8207 - UMET - Unité Matériaux et Transformations, F-59000 Lille, France.
| | - Nicolas Blanchemain
- Univ. Lille, Inserm, CHU Lille, U1008 - Controlled Drug Delivery Systems and Biomaterials, F-59000 Lille, France.
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7
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Adokoh CK. Therapeutic potential of dithiocarbamate supported gold compounds. RSC Adv 2020; 10:2975-2988. [PMID: 35496096 PMCID: PMC9048446 DOI: 10.1039/c9ra09682e] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2019] [Accepted: 01/08/2020] [Indexed: 12/24/2022] Open
Abstract
Chrysotherapy or aurotherapy, the use of gold as medicine, is two thousand years old. Hitherto, numerous diverse gold stabilizing ligands for instance vitamins, pyridine, phosphines, naphthylamine and xanthanes have been developed and their 'chelating effect' in addition to their anti-proliferative properties have been extensively studied. Recent advances in the field of bioinorganic chemistry have led to the design of biologically relevant metal complexes with appropriate fine-tuned ligands such as metallic conjugates of dithiocarbamates (DTCs). DTC compounds have been recognised to possess diverse applications and have demonstrated interesting biological properties. For instance, the chemoprotective and antitumour properties of gold metal ions and DTC compounds respectively, presents an innovative and effective approach to cancer management. This review presents therefore the therapeutic potential of DTC ligand systems as a support for gold compounds. The importance of dithiocarbamate supported gold compounds as potential therapeutic agents is highlighted with emphasis on the therapeutic potential of gold(iii) and gold(i) dithiocarbamate derivatives.
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Affiliation(s)
- Christian K Adokoh
- Department of Forensic Sciences, School of Biological Sciences, College of Agriculture and Natural Sciences, University of Cape Coast Cape Coast Ghana
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8
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Campu A, Susu L, Orzan F, Maniu D, Craciun AM, Vulpoi A, Roiban L, Focsan M, Astilean S. Multimodal Biosensing on Paper-Based Platform Fabricated by Plasmonic Calligraphy Using Gold Nanobypiramids Ink. Front Chem 2019; 7:55. [PMID: 30800650 PMCID: PMC6375850 DOI: 10.3389/fchem.2019.00055] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2018] [Accepted: 01/21/2019] [Indexed: 11/29/2022] Open
Abstract
In this work, we design new plasmonic paper-based nanoplatforms with interesting capabilities in terms of sensitivity, efficiency, and reproducibility for promoting multimodal biodetection via Localized Surface Plasmon Resonance (LSPR), Surface Enhanced Raman Spectroscopy (SERS), and Metal Enhanced Fluorescence (MEF). To succeed, we exploit the unique optical properties of gold nanobipyramids (AuBPs) deposited onto the cellulose fibers via plasmonic calligraphy using a commercial pen. The first step of the biosensing protocol was to precisely graft the previously chemically-formed p-aminothiophenol@Biotin system, as active recognition element for target streptavidin detection, onto the plasmonic nanoplatform. The specific capture of the target protein was successfully demonstrated using three complementary sensing techniques. As a result, while the LSPR based sensing capabilities of the nanoplatform were proved by successive 13-18 nm red shifts of the longitudinal LSPR associated with the change of the surface RI after each step. By employing the ultrasensitive SERS technique, we were able to indirectly confirm the molecular identification of the biotin-streptavidin interaction due to the protein fingerprint bands assigned to amide I, amide III, and Trp vibrations. Additionally, the formed biotin-streptavidin complex acted as a spacer to ensure an optimal distance between the AuBP surface and the Alexa 680 fluorophore for achieving a 2-fold fluorescence emission enhancement of streptavidin@Alexa 680 on the biotinylated nanoplatform compared to the same complex on bare paper (near the plasmonic lines), implementing thus a novel MEF sensing nanoplatform. Finally, by integrating multiple LSPR, SERS, and MEF nanosensors with multiplex capability into a single flexible and portable plasmonic nanoplatform, we could overcome important limits in the field of portable point-of-care diagnostics.
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Affiliation(s)
- Andreea Campu
- Nanobiophotonics and Laser Microspectroscopy Center, Interdisciplinary Research Institute on Bio-Nano-Sciences, Babes-Bolyai University, Cluj-Napoca, Romania
| | - Laurentiu Susu
- Nanobiophotonics and Laser Microspectroscopy Center, Interdisciplinary Research Institute on Bio-Nano-Sciences, Babes-Bolyai University, Cluj-Napoca, Romania
| | - Filip Orzan
- Nanobiophotonics and Laser Microspectroscopy Center, Interdisciplinary Research Institute on Bio-Nano-Sciences, Babes-Bolyai University, Cluj-Napoca, Romania
| | - Dana Maniu
- Biomolecular Physics Department, Faculty of Physics, Babes-Bolyai University, Cluj-Napoca, Romania
| | - Ana Maria Craciun
- Nanobiophotonics and Laser Microspectroscopy Center, Interdisciplinary Research Institute on Bio-Nano-Sciences, Babes-Bolyai University, Cluj-Napoca, Romania
| | - Adriana Vulpoi
- Nanostructured Materials and Bio-Nano-Interfaces Center, Interdisciplinary Research Institute on Bio-Nano-Sciences, Babes-Bolyai University, Cluj-Napoca, Romania
| | - Lucian Roiban
- Univ Lyon, INSA-Lyon, Université Claude Bernard Lyon 1, MATEIS, UMR, CNRS, Villeurbanne, France
| | - Monica Focsan
- Nanobiophotonics and Laser Microspectroscopy Center, Interdisciplinary Research Institute on Bio-Nano-Sciences, Babes-Bolyai University, Cluj-Napoca, Romania
| | - Simion Astilean
- Nanobiophotonics and Laser Microspectroscopy Center, Interdisciplinary Research Institute on Bio-Nano-Sciences, Babes-Bolyai University, Cluj-Napoca, Romania
- Biomolecular Physics Department, Faculty of Physics, Babes-Bolyai University, Cluj-Napoca, Romania
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9
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Kallus S, Uhlik L, van Schoonhoven S, Pelivan K, Berger W, Enyedy ÉA, Hofmann T, Heffeter P, Kowol CR, Keppler BK. Synthesis and biological evaluation of biotin-conjugated anticancer thiosemicarbazones and their iron(III) and copper(II) complexes. J Inorg Biochem 2019; 190:85-97. [PMID: 30384010 DOI: 10.1016/j.jinorgbio.2018.10.006] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2018] [Revised: 10/01/2018] [Accepted: 10/14/2018] [Indexed: 12/24/2022]
Abstract
Triapine, the most prominent anticancer drug candidate from the substance class of thiosemicarbazones, was investigated in >30 clinical phase I and II studies. However, the results were rather disappointing against solid tumors, which can be explained (at least partially) due to inefficient delivery to the tumor site. Hence, we synthesized the first biotin-functionalized thiosemicarbazone derivatives in order to increase tumor specificity and accumulation. Additionally, for Triapine and one biotin conjugate the iron(III) and copper(II) complexes were prepared. Subsequently, the novel compounds were biologically evaluated on a cell line panel with different biotin uptake. The metal-free biotin-conjugated ligands showed comparable activity to the reference compound Triapine. However, astonishingly, the metal complexes of the biotinylated derivative showed strikingly decreased anticancer activity. To further analyze possible differences between the metal complexes, detailed physico- and electrochemical experiments were performed. However, neither lipophilicity or complex solution stability, nor the reduction potential or behavior in the presence of biologically relevant reducing agents showed strong variations between the biotinylated and non-biotinylated derivatives (only some differences in the reduction kinetics were observed). Nonetheless, the metal-free biotin-conjugate of Triapine revealed distinct activity in a colon cancer mouse model upon oral application comparable to Triapine. Therefore, this type of biotin-conjugated thiosemicarbazone is of interest for further synthetic strategies and biological studies.
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Affiliation(s)
- Sebastian Kallus
- Institute of Inorganic Chemistry, Faculty of Chemistry, University of Vienna, Waehringer Str. 42, A-1090 Vienna, Austria
| | - Lukas Uhlik
- Institute of Cancer Research and Comprehensive Cancer Center, Medical University of Vienna, Borschkeg. 8a, A-1090 Vienna, Austria
| | - Sushilla van Schoonhoven
- Institute of Cancer Research and Comprehensive Cancer Center, Medical University of Vienna, Borschkeg. 8a, A-1090 Vienna, Austria
| | - Karla Pelivan
- Institute of Inorganic Chemistry, Faculty of Chemistry, University of Vienna, Waehringer Str. 42, A-1090 Vienna, Austria
| | - Walter Berger
- Institute of Cancer Research and Comprehensive Cancer Center, Medical University of Vienna, Borschkeg. 8a, A-1090 Vienna, Austria; Research Cluster "Translational Cancer Therapy Research", Vienna, Austria
| | - Éva A Enyedy
- Department of Inorganic and Analytical Chemistry, Interdisciplinary Excellence Centre, University of Szeged, Dóm tér 7, H-6720, Szeged, Hungary
| | - Thilo Hofmann
- Department of Environmental Geosciences, University of Vienna, Althanstraße 14, A-1090, Vienna, Austria
| | - Petra Heffeter
- Institute of Cancer Research and Comprehensive Cancer Center, Medical University of Vienna, Borschkeg. 8a, A-1090 Vienna, Austria; Research Cluster "Translational Cancer Therapy Research", Vienna, Austria.
| | - Christian R Kowol
- Institute of Inorganic Chemistry, Faculty of Chemistry, University of Vienna, Waehringer Str. 42, A-1090 Vienna, Austria; Research Cluster "Translational Cancer Therapy Research", Vienna, Austria.
| | - Bernhard K Keppler
- Institute of Inorganic Chemistry, Faculty of Chemistry, University of Vienna, Waehringer Str. 42, A-1090 Vienna, Austria; Research Cluster "Translational Cancer Therapy Research", Vienna, Austria
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Zhang X, Huang G, Huang H. The glyconanoparticle as carrier for drug delivery. Drug Deliv 2018; 25:1840-1845. [PMID: 30799659 PMCID: PMC7011877 DOI: 10.1080/10717544.2018.1519001] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2018] [Revised: 08/25/2018] [Accepted: 08/30/2018] [Indexed: 02/02/2023] Open
Abstract
The glyconanoparticle (GlycoNP) has multiple effects and has important applications in drug delivery and bioimaging. It not only has the advantages of nano drug delivery system but also utilizes the characteristics of multivalent interaction of sugar, which greatly improves the targeting of drug delivery. Herein, the application of GlycoNP in drug delivery was analyzed and discussed, the solution to its problem was proposed, and its prospects were forecasted.
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Affiliation(s)
- Xueqin Zhang
- Active Carbohydrate Research Institute, Chongqing Normal University, Chongqing, China
| | - Gangliang Huang
- Active Carbohydrate Research Institute, Chongqing Normal University, Chongqing, China
| | - Hualiang Huang
- School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan, China
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11
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Campu A, Lerouge F, Chateau D, Chaput F, Baldeck P, Parola S, Maniu D, Craciun AM, Vulpoi A, Astilean S, Focsan M. Gold NanoBipyramids Performing as Highly Sensitive Dual-Modal Optical Immunosensors. Anal Chem 2018; 90:8567-8575. [DOI: 10.1021/acs.analchem.8b01689] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Andreea Campu
- Nanobiophotonics and Laser Microspectroscopy Center, Interdisciplinary Research Institute on Bio-Nano-Sciences, Babes-Bolyai University, Treboniu Laurean No.42, Cluj-Napoca 400271, Romania
- Biomolecular Physics Department, Faculty of Physics, Babes-Bolyai University, M Kogalniceanu No. 1, Cluj-Napoca 400084, Romania
| | - Frederic Lerouge
- Ecole Normale Superiéure de Lyon, CNRS, Université Lyon 1, Laboratoire de Chimie UMR 5182, 46, allée d’Italie, F-69364, Lyon Cedex 07, France
| | - Denis Chateau
- Ecole Normale Superiéure de Lyon, CNRS, Université Lyon 1, Laboratoire de Chimie UMR 5182, 46, allée d’Italie, F-69364, Lyon Cedex 07, France
| | - Frederic Chaput
- Ecole Normale Superiéure de Lyon, CNRS, Université Lyon 1, Laboratoire de Chimie UMR 5182, 46, allée d’Italie, F-69364, Lyon Cedex 07, France
| | - Patrice Baldeck
- Ecole Normale Superiéure de Lyon, CNRS, Université Lyon 1, Laboratoire de Chimie UMR 5182, 46, allée d’Italie, F-69364, Lyon Cedex 07, France
| | - Stephane Parola
- Ecole Normale Superiéure de Lyon, CNRS, Université Lyon 1, Laboratoire de Chimie UMR 5182, 46, allée d’Italie, F-69364, Lyon Cedex 07, France
| | - Dana Maniu
- Biomolecular Physics Department, Faculty of Physics, Babes-Bolyai University, M Kogalniceanu No. 1, Cluj-Napoca 400084, Romania
| | - Ana Maria Craciun
- Nanobiophotonics and Laser Microspectroscopy Center, Interdisciplinary Research Institute on Bio-Nano-Sciences, Babes-Bolyai University, Treboniu Laurean No.42, Cluj-Napoca 400271, Romania
| | - Adriana Vulpoi
- Nanostructured Materials and Bio-Nano-Interfaces Center, Interdisciplinary Research Institute on Bio-Nano-Sciences, Babes-Bolyai University, Treboniu Laurian No. 42, Cluj-Napoca 400271, Romania
| | - Simion Astilean
- Nanobiophotonics and Laser Microspectroscopy Center, Interdisciplinary Research Institute on Bio-Nano-Sciences, Babes-Bolyai University, Treboniu Laurean No.42, Cluj-Napoca 400271, Romania
- Biomolecular Physics Department, Faculty of Physics, Babes-Bolyai University, M Kogalniceanu No. 1, Cluj-Napoca 400084, Romania
| | - Monica Focsan
- Nanobiophotonics and Laser Microspectroscopy Center, Interdisciplinary Research Institute on Bio-Nano-Sciences, Babes-Bolyai University, Treboniu Laurean No.42, Cluj-Napoca 400271, Romania
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12
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Tang Q, Huang G. Preparation and applications of glyconanoparticles. Int J Biol Macromol 2018; 116:927-930. [PMID: 29777808 DOI: 10.1016/j.ijbiomac.2018.05.103] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2018] [Revised: 05/08/2018] [Accepted: 05/15/2018] [Indexed: 01/28/2023]
Abstract
The glyconanoparticle can be used to construct biological cell models that are similar to the expression of carbohydrates on the surface of cells, and it has become excellent research tools in glycobiology, biopharmaceuticals, and materials science. With the deepening of research, glyconanoparticle has broad application prospects in drug delivery, biomedical imaging, diagnosis and treatment because its preparation is simple, and it has the unique physical, chemical and biological properties. The preparation of glyconanoparticles and their applications were summarized and discussed here.
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Affiliation(s)
- Qilin Tang
- Active Carbohydrate Research Institute, Chongqing Normal University, Chongqing, 401331, China
| | - Gangliang Huang
- Active Carbohydrate Research Institute, Chongqing Normal University, Chongqing, 401331, China.
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13
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Bojarová P, Křen V. Sugared biomaterial binding lectins: achievements and perspectives. Biomater Sci 2018; 4:1142-60. [PMID: 27075026 DOI: 10.1039/c6bm00088f] [Citation(s) in RCA: 55] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Lectins, a distinct group of glycan-binding proteins, play a prominent role in the immune system ranging from pathogen recognition and tuning of inflammation to cell adhesion or cellular signalling. The possibilities of their detailed study expanded along with the rapid development of biomaterials in the last decade. The immense knowledge of all aspects of glycan-lectin interactions both in vitro and in vivo may be efficiently used in bioimaging, targeted drug delivery, diagnostic and analytic biological methods. Practically applicable examples comprise photoluminescence and optical biosensors, ingenious three-dimensional carbohydrate microarrays for high-throughput screening, matrices for magnetic resonance imaging, targeted hyperthermal treatment of cancer tissues, selective inhibitors of bacterial toxins and pathogen-recognising lectin receptors, and many others. This review aims to present an up-to-date systematic overview of glycan-decorated biomaterials promising for interactions with lectins, especially those applicable in biology, biotechnology or medicine. The lectins of interest include galectin-1, -3 and -7 participating in tumour progression, bacterial lectins from Pseudomonas aeruginosa (PA-IL), E. coli (Fim-H) and Clostridium botulinum (HA33) or DC-SIGN, receptors of macrophages and dendritic cells. The spectrum of lectin-binding biomaterials covered herein ranges from glycosylated organic structures, calixarene and fullerene cores over glycopeptides and glycoproteins, functionalised carbohydrate scaffolds of cyclodextrin or chitin to self-assembling glycopolymer clusters, gels, micelles and liposomes. Glyconanoparticles, glycan arrays, and other biomaterials with a solid core are described in detail, including inorganic matrices like hydroxyapatite or stainless steel for bioimplants.
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Affiliation(s)
- P Bojarová
- Laboratory of Biotransformation, Institute of Microbiology, Academy of Sciences of the Czech Republic, Vídeňská 1083, CZ 14220 Prague 4, Czech Republic.
| | - V Křen
- Laboratory of Biotransformation, Institute of Microbiology, Academy of Sciences of the Czech Republic, Vídeňská 1083, CZ 14220 Prague 4, Czech Republic.
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14
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Bertrand B, O'Connell MA, Waller ZAE, Bochmann M. A Gold(III) Pincer Ligand Scaffold for the Synthesis of Binuclear and Bioconjugated Complexes: Synthesis and Anticancer Potential. Chemistry 2018; 24:3613-3622. [PMID: 29334159 DOI: 10.1002/chem.201705902] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2017] [Indexed: 12/14/2022]
Abstract
Cyclometalated (C^N^C)AuIII complexes bearing functionalized N-heterocyclic carbene (NHC) ligands provide a high-yielding, modular route to bioconjugated and binuclear complexes. This methodology has been applied to the synthesis of bioconjugated complexes presenting biotin and 17α-ethynylestradiol vectors, as well as to the synthesis of bimetallic AuIII /AuI complexes. The in vitro antiproliferative activities of these compounds against various cancer cells lines depend on the linker length, with the longer linker being the most potent. The estradiol conjugate AuC6 Estra proved to be more toxic against the estrogen receptor positive (ER+) cancer cells than against the ER- cancer cells and non-cancer cells. The bimetallic complex AuC6 Au was more selective for breast cancer cells with respect to a healthy cell standard than the monometallic complex AuNHC. The metal uptake study on cells expressing or not biotin and estrogen receptors revealed an improved and targeted delivery of gold for both the bioconjugated complexes AuC6 Biot and AuC6 Estra compared to the non-vectorised analogue AuNHC. The investigations of the interaction of the bioconjugates and bimetallic complexes with human telomeric G-quadruplex DNA using FRET-melting techniques revealed a reduced ability to stabilize this DNA structure with respect to the non-vectorised analogue AuNHC.
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Affiliation(s)
- Benoît Bertrand
- School of Chemistry, University of East Anglia, Norwich, NR4 7TJ, UK.,Institut Parisien de Chimie Moléculaire (IPCM), UPMC Univ Paris 06, CNRS, Sorbonne Universités, 4 Place Jussieu, 75005, Paris, France
| | | | - Zoë A E Waller
- School of Pharmacy, University of East Anglia, Norwich, NR4 7TJ, UK
| | - Manfred Bochmann
- School of Chemistry, University of East Anglia, Norwich, NR4 7TJ, UK
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15
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Facile synthesis of Gd-doped CdTe quantum dots with optimized properties for optical/MR multimodal imaging. J Biol Inorg Chem 2017; 22:1151-1163. [DOI: 10.1007/s00775-017-1491-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2017] [Accepted: 08/29/2017] [Indexed: 12/18/2022]
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16
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Hsu CW, Septiadi D, Lai CH, Chen P, Seeberger PH, De Cola L. Glucose-Modified Silicon Nanoparticles for Cellular Imaging. Chempluschem 2017; 82:660-667. [PMID: 31961576 DOI: 10.1002/cplu.201700054] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2017] [Revised: 03/29/2017] [Indexed: 11/12/2022]
Abstract
Luminescent silicon nanoparticles have recently attracted attention due to their remarkable stability, covalent functionalisation and tunable photoemission properties. Owing to their biocompatibility, low toxicity, and the small particle size that can be achieved by different synthetic approaches, these nanomaterials are candidates as cellular probes in the field of bioimaging, and potentially for in vivo applications. Tailoring the surface of the particles with active biomolecules such as sugar moieties can be an interesting strategy to increase the kinetics of internalisation or to vary the localisation of nanosystems in living cells. In this study, we synthesised and modified ultrasmall silicon nanoparticles with glucose covalently linked on their surface. Moreover, by varying the ratio between the amount of silicon nanoparticles and the saccharide groups, the amount of glucose, as a capping moiety, can be well controlled. FTIR spectroscopy, NMR spectroscopy, zeta potential measurements and anisotropy decay analysis confirmed the covalent binding of glucose to the nanoparticles. The photophysical behaviour of the surface-functionalised silicon quantum dots was not significantly different to that of the unmodified nanoparticles. In vitro studies demonstrated faster internalisation of the glucose-functionalised nanoparticles into HeLa cells. Different localisation and uptake kinetics of the glucose-modified particles compared to the unmodified particles are discussed in order to reveal the role played by the sugar molecules.
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Affiliation(s)
- Chien-Wei Hsu
- Institut de Science et d'Ingénierie Supramoléculaires (ISIS), Université de Strasbourg & CNRS UMR 7006, 8 allée Gaspard Monge, 67083, Strasbourg, France.,Institut für Nanotechnologie (INT), Karlsruher Institut für Technologie (KIT), Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany
| | - Dedy Septiadi
- Institut de Science et d'Ingénierie Supramoléculaires (ISIS), Université de Strasbourg & CNRS UMR 7006, 8 allée Gaspard Monge, 67083, Strasbourg, France
| | - Chian-Hui Lai
- Department of Biomolecular Systems, Max-Planck-Institute of Colloids and Interfaces, Am Mühlenberg 1, 14476, Potsdam-Golm, Germany
| | - Pengkun Chen
- Institut de Science et d'Ingénierie Supramoléculaires (ISIS), Université de Strasbourg & CNRS UMR 7006, 8 allée Gaspard Monge, 67083, Strasbourg, France
| | - Peter H Seeberger
- Department of Biomolecular Systems, Max-Planck-Institute of Colloids and Interfaces, Am Mühlenberg 1, 14476, Potsdam-Golm, Germany
| | - Luisa De Cola
- Institut de Science et d'Ingénierie Supramoléculaires (ISIS), Université de Strasbourg & CNRS UMR 7006, 8 allée Gaspard Monge, 67083, Strasbourg, France.,Institut für Nanotechnologie (INT), Karlsruher Institut für Technologie (KIT), Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany
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17
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Raju Kutcherlapati SN, Yeole N, Gadi MR, Perali RS, Jana T. RAFT mediated one-pot synthesis of glycopolymer particles with tunable core–shell morphology. Polym Chem 2017. [DOI: 10.1039/c6py02202b] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
A novel and one-pot RAFT mediated method for the synthesis of colloidal copolymers in which the particle shell is coated with protein binding glycopolymers.
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Affiliation(s)
| | - Niranjan Yeole
- School of Chemistry
- University of Hyderabad
- Hyderabad
- India
| | | | | | - Tushar Jana
- School of Chemistry
- University of Hyderabad
- Hyderabad
- India
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18
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19
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Oh E, Liu R, Nel A, Gemill KB, Bilal M, Cohen Y, Medintz IL. Meta-analysis of cellular toxicity for cadmium-containing quantum dots. NATURE NANOTECHNOLOGY 2016; 11:479-86. [PMID: 26925827 DOI: 10.1038/nnano.2015.338] [Citation(s) in RCA: 280] [Impact Index Per Article: 35.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/18/2014] [Accepted: 12/16/2015] [Indexed: 04/14/2023]
Abstract
Understanding the relationships between the physicochemical properties of engineered nanomaterials and their toxicity is critical for environmental and health risk analysis. However, this task is confounded by material diversity, heterogeneity of published data and limited sampling within individual studies. Here, we present an approach for analysing and extracting pertinent knowledge from published studies focusing on the cellular toxicity of cadmium-containing semiconductor quantum dots. From 307 publications, we obtain 1,741 cell viability-related data samples, each with 24 qualitative and quantitative attributes describing the material properties and experimental conditions. Using random forest regression models to analyse the data, we show that toxicity is closely correlated with quantum dot surface properties (including shell, ligand and surface modifications), diameter, assay type and exposure time. Our approach of integrating quantitative and categorical data provides a roadmap for interrogating the wide-ranging toxicity data in the literature and suggests that meta-analysis can help develop methods for predicting the toxicity of engineered nanomaterials.
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Affiliation(s)
- Eunkeu Oh
- Optical Sciences Division, Code 5611, US Naval Research Laboratory, Washington, Washington DC 20375, USA
- Sotera Defense Solutions, Columbia, Maryland 21046, USA
| | - Rong Liu
- Institute of the Environment and Sustainability, University of California, Los Angeles, California 90095-1496, USA
- Center for Environmental Implications of Nanotechnology, University of California, Los Angeles, California 90095-7227, USA
| | - Andre Nel
- Center for Environmental Implications of Nanotechnology, University of California, Los Angeles, California 90095-7227, USA
- Department of Medicine, Division of NanoMedicine, University of California, Los Angeles, California 90095, USA
| | - Kelly Boeneman Gemill
- Center for Bio/Molecular Science and Engineering, Code 6900, US Naval Research Laboratory, SW Washington, Washington DC 20375, USA
| | - Muhammad Bilal
- Center for Environmental Implications of Nanotechnology, University of California, Los Angeles, California 90095-7227, USA
| | - Yoram Cohen
- Institute of the Environment and Sustainability, University of California, Los Angeles, California 90095-1496, USA
- Center for Environmental Implications of Nanotechnology, University of California, Los Angeles, California 90095-7227, USA
- Department of Chemical and Biomolecular Engineering, University of California, Los Angeles, California 90095-1592, USA
| | - Igor L Medintz
- Center for Bio/Molecular Science and Engineering, Code 6900, US Naval Research Laboratory, SW Washington, Washington DC 20375, USA
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20
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Kohri M, Taniguchi T, Kishikawa K. Glycopolymer-Grafted Polymer Particles for Lectin Recognition. Methods Mol Biol 2016; 1367:137-47. [PMID: 26537470 DOI: 10.1007/978-1-4939-3130-9_11] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Glycopolymers bearing carbohydrates have an advantage in protein recognition that is attributable to the multivalent effect (cluster effect) of side-chain carbohydrates. A variety of surface-modified polymer particles have been prepared concurrently with the development of new synthetic technology. Here we describe a synthetic method of glycopolymer-grafted polymer particles by surface-initiated living radical polymerization, i.e., atom-transfer radical polymerization (ATRP) and photoiniferter polymerization, for specific lectin recognition.
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Affiliation(s)
- Michinari Kohri
- Division of Applied Chemistry and Biotechnology, Graduate School of Engineering, Chiba University, 1-33 Yayoi-cho, Inage-ku, Chiba, 263-8522, Japan.
| | - Tatsuo Taniguchi
- Division of Applied Chemistry and Biotechnology, Graduate School of Engineering, Chiba University, 1-33 Yayoi-cho, Inage-ku, Chiba, 263-8522, Japan
| | - Keiki Kishikawa
- Division of Applied Chemistry and Biotechnology, Graduate School of Engineering, Chiba University, 1-33 Yayoi-cho, Inage-ku, Chiba, 263-8522, Japan
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21
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Synthetic Approach to Biotinylated Glyco-Functionalized Quantum Dots: A New Fluorescent Probes for Biomedical Applications. Methods Mol Biol 2015; 1367:109-21. [PMID: 26537468 DOI: 10.1007/978-1-4939-3130-9_9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/22/2023]
Abstract
Technological advances that allow deeper penetration in live tissues, such as the development of confocal and the generation of ever-new fluorophores that facilitate bright labeling of cells and tissue components have made imaging of vertebrate model organisms efficient and highly informative. Recently, high luminescence, single-excitation narrow emission, low photo bleaching properties, and low toxicity of high-quality water-soluble QDs have attracted attention for in vivo labeling/imaging of cells. Herein we describe a synthetic approach to biotinylated glycopolymer functionalized quantum dots, with special emphasis on the development of high-quality water-soluble and bioactive QDs with low toxicity for fluorescent probes in biomedical applications.
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22
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Marín MJ, Schofield CL, Field RA, Russell DA. Glyconanoparticles for colorimetric bioassays. Analyst 2015; 140:59-70. [PMID: 25277069 DOI: 10.1039/c4an01466a] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Carbohydrate molecules are involved in many of the cellular processes that are important for life. By combining the specific analyte targeting of carbohydrates with the multivalent structure and change of solution colour as a consequence of plasmonic interactions with the aggregation of metal nanoparticles, glyconanoparticles have been used extensively for the development of bioanalytical assays. The noble metals used to create the nanocore, the methodologies used to assemble the carbohydrates on the nanoparticle surface, the carbohydrate chosen for each specific target, the length of the tether that separates the carbohydrate from the nanocore and the density of carbohydrates on the surface all impact on the structural formation of metal based glyconanoparticles. This tutorial review highlights these key components, which directly impact on the selectivity and sensitivity of the developed bioassay, for the colorimetric detection of lectins, toxins and viruses.
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Affiliation(s)
- María J Marín
- School of Chemistry, University of East Anglia, Norwich Research Park, Norwich, Norfolk NR4 7TJ, UK.
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23
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Jin G, Jiang LM, Yi DM, Sun HZ, Sun HC. The Influence of Surface Modification on the Photoluminescence of CdTe Quantum Dots: Realization of Bio-Imaging via Cost-Effective Polymer. Chemphyschem 2015; 16:3687-94. [DOI: 10.1002/cphc.201500715] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2015] [Indexed: 01/24/2023]
Affiliation(s)
- Gan Jin
- College of Chemistry; Northeast Normal University; Changchun 130024 P. R. China
| | - Li-Ming Jiang
- Department of Pediatric Dentistry, School and Hospital of Stomatology; China Medical University; Shenyang 110002 P. R. China
| | - Dong-Mei Yi
- College of Chemistry; Northeast Normal University; Changchun 130024 P. R. China
| | - Hai-Zhu Sun
- College of Chemistry; Northeast Normal University; Changchun 130024 P. R. China
| | - Hong-Chen Sun
- Department of Pathology; School of Stomatology; Jilin University; Changchun 130021 P. R. China
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24
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Xu LQ. Ruthenium(II)–terpyridine complexes-containing glyconanoparticles for one- and two-photon excited fluorescence imaging. Eur Polym J 2015. [DOI: 10.1016/j.eurpolymj.2015.08.007] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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25
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Wang W, Lester JM, Amorosa AE, Chance DL, Mossine VV, Mawhinney TP. Facile and Efficient Preparation of Tri-component Fluorescent Glycopolymers via RAFT-controlled Polymerization. J Vis Exp 2015:e52922. [PMID: 26132587 PMCID: PMC4545147 DOI: 10.3791/52922] [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] [Indexed: 10/31/2022] Open
Abstract
Synthetic glycopolymers are instrumental and versatile tools used in various biochemical and biomedical research fields. An example of a facile and efficient synthesis of well-controlled fluorescent statistical glycopolymers using reversible addition-fragmentation chain-transfer (RAFT)-based polymerization is demonstrated. The synthesis starts with the preparation of β-galactose-containing glycomonomer 2-lactobionamidoethyl methacrylamide obtained by reaction of lactobionolactone and N-(2-aminoethyl) methacrylamide (AEMA). 2-Gluconamidoethyl methacrylamide (GAEMA) is used as a structural analog lacking a terminal β-galactoside. The following RAFT-mediated copolymerization reaction involves three different monomers: N-(2-hydroxyethyl) acrylamide as spacer, AEMA as target for further fluorescence labeling, and the glycomonomers. Tolerant of aqueous systems, the RAFT agent used in the reaction is (4-cyanopentanoic acid)-4-dithiobenzoate. Low dispersities (≤1.32), predictable copolymer compositions, and high reproducibility of the polymerizations were observed among the products. Fluorescent polymers are obtained by modifying the glycopolymers with carboxyfluorescein succinimidyl ester targeting the primary amine functional groups on AEMA. Lectin-binding specificities of the resulting glycopolymers are verified by testing with corresponding agarose beads coated with specific glycoepitope recognizing lectins. Because of the ease of the synthesis, the tight control of the product compositions and the good reproducibility of the reaction, this protocol can be translated towards preparation of other RAFT-based glycopolymers with specific structures and compositions, as desired.
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Affiliation(s)
- Wei Wang
- Department of Biochemistry, University of Missouri
| | | | | | - Deborah L Chance
- Department of Molecular Microbiology & Immunology, University of Missouri
| | | | - Thomas P Mawhinney
- Department of Biochemistry, University of Missouri; Department of Child Health, University of Missouri;
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26
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Pei D, Li Y, Huang Q, Ren Q, Li F, Shi T. Quantum dots encapsulated glycopolymer vesicles: Synthesis, lectin recognition and photoluminescent properties. Colloids Surf B Biointerfaces 2015; 127:130-6. [DOI: 10.1016/j.colsurfb.2015.01.032] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2014] [Revised: 01/12/2015] [Accepted: 01/20/2015] [Indexed: 11/24/2022]
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27
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Adokoh CK, Obuah C, Kinfe HH, Zinyemba O, Darkwa J. Novel bio-friendly and non-toxic thiocarbohydrate stabilizers of gold nanoparticles. NEW J CHEM 2015. [DOI: 10.1039/c5nj00293a] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
A new class of stabilizers for gold nanoparticles has been develop with non-toxic thiocarbohydrates that were prepared from d-(+)-gluconic acid δ-lactone and aminoalkylthiols.
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Affiliation(s)
| | - Collins Obuah
- Department of Chemistry
- University of Johannesburg
- South Africa
| | - Henok H. Kinfe
- Department of Chemistry
- University of Johannesburg
- South Africa
| | - Orpah Zinyemba
- Department of Chemistry
- University of Johannesburg
- South Africa
| | - James Darkwa
- Department of Chemistry
- University of Johannesburg
- South Africa
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28
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Abstract
This review focuses on the different approaches to synthesizing glycopolymer-based nanoparticles and their various applications.
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Affiliation(s)
- Xiao Li
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou
- P. R. China
| | - Gaojian Chen
- Center for Soft Condensed Matter Physics and Interdisciplinary Research
- Soochow University
- Suzhou 215006
- P. R. China
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29
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Abstract
Glyconanoparticles and their interactions with lectins.
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Affiliation(s)
- Gokhan Yilmaz
- Department of Chemistry
- University of Warwick
- CV4 7AL Coventry
- UK
- Department of Basic Sciences
| | - C. Remzi Becer
- School of Engineering and Materials Science
- Queen Mary
- University of London
- E1 4NS London
- UK
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30
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Obata M, Kobori T, Hirohara S, Tanihara M. Aqueous RAFT synthesis of block and statistical copolymers of 2-(α-d-mannopyranosyloxy)ethyl methacrylate with 2-(N,N-dimethylamino)ethyl methacrylate and their application for nonviral gene delivery. Polym Chem 2015. [DOI: 10.1039/c4py01652a] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Statistical and block glycopolymers presenting d-mannose were prepared by aqueous RAFT polymerization, and the effect of the microstructure on gene delivery was examined.
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Affiliation(s)
- Makoto Obata
- Interdisciplinary Graduate School of Medicine and Engineering
- University of Yamanashi
- Kofu 400-8510
- Japan
| | - Tomoya Kobori
- Interdisciplinary Graduate School of Medicine and Engineering
- University of Yamanashi
- Kofu 400-8510
- Japan
| | - Shiho Hirohara
- Department of Chemical and Biological Engineering
- Ube National College of Technology
- Ube 755-8555
- Japan
| | - Masao Tanihara
- Graduate School of Materials Science
- Nara Institute of Science and Technology
- Nara 630-0192
- Japan
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31
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He Q, Fan X, Sun S, Li H, Pei Y, Xu Y. Highly selective turn-on detection of (strept)avidin based on self-assembled near-infrared fluorescent probes. RSC Adv 2015. [DOI: 10.1039/c5ra07185b] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A small molecular fluorescent dye (SQ-Biotin) which can self-assemble into a non-fluorescent probe in aqueous solution for near infrared turn-on detection of avidin protein.
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Affiliation(s)
- Qingyuan He
- College of Science
- Northwest A&F University
- Yangling
- P. R. China
| | - Xiaopeng Fan
- College of Science
- Northwest A&F University
- Yangling
- P. R. China
| | - Shiguo Sun
- College of Science
- Northwest A&F University
- Yangling
- P. R. China
| | - Hongjuan Li
- College of Science
- Northwest A&F University
- Yangling
- P. R. China
| | - Yuxin Pei
- College of Science
- Northwest A&F University
- Yangling
- P. R. China
| | - Yongqian Xu
- College of Science
- Northwest A&F University
- Yangling
- P. R. China
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32
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Zhao MX, Zeng EZ, Li Y, Wang CJ. A study on effects of naphthalimide derivative-capped quantum dots on the cellular internalization, proliferation, and apoptosis ability. J Mater Chem B 2014; 2:7351-7359. [PMID: 32261959 DOI: 10.1039/c4tb01048e] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Quantum dots (QDs) have shown great potential in monitoring and imaging cancer cells because of their unique photochemical and photophysical properties. However, it is little-known whether QDs affect the cellular internalization, proliferation and apoptosis. Here a new class of multifunctional QDs capped with ligands that possess l-Lys or l-Arg and naphthalimide (NI), linked by carboxyl groups (l-Lys-NI@QDs and l-Arg-NI@QDs, respectively), have been synthesized. We found that these QDs are of controllable sizes, in the range of 4 to 5 nm and have strong optical emission properties. The cellular uptake of NI derivative-capped QDs was monitored by flow cytometry and confocal microscopy. The results of in vitro cytotoxicity revealed that NI derivative-capped QDs, with better cell selectivity, could inhibit the growth of multiple cancer cells more potently than amonafide. They effectively inhibited the proliferation of cells due to apoptosis, which was confirmed by Hoechst 33342, annexin V-FITC and JC-1 staining and mitochondrial membrane potential (MMP) experiments. The most potent NI derivative-capped QDs, l-Arg-NI@CdSe/ZnS, were verified to efficiently induce apoptosis via a reactive oxygen species (ROS) mediating mitochondrial dysfunction, and were more effective in promoting programmed cell death in HepG2 cells in a preliminary mechanistic study.
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Affiliation(s)
- Mei-Xia Zhao
- Key Laboratory of Natural Medicine and Immune Engineering, Henan University, Kaifeng 475004, China.
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33
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Mashinchian O, Johari-Ahar M, Ghaemi B, Rashidi M, Barar J, Omidi Y. Impacts of quantum dots in molecular detection and bioimaging of cancer. ACTA ACUST UNITED AC 2014; 4:149-66. [PMID: 25337468 PMCID: PMC4204040 DOI: 10.15171/bi.2014.008] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2014] [Revised: 06/02/2014] [Accepted: 09/21/2014] [Indexed: 12/20/2022]
Abstract
Introduction: A number of assays have so far been exploited for detection of cancer biomarkers in various malignancies. However, the expression of cancer biomarker(s) appears to be extremely low, therefore accurate detection demands sensitive optical imaging probes. While optical detection using conventional fluorophores often fail due to photobleaching problems, quantum dots (QDs) offer stable optical imaging in vitro and in vivo.
Methods: In this review, we briefly overview the impacts of QDs in biology and its applications in bioimaging of malignancies. We will also delineate the existing obstacles for early detection of cancer and the intensifying use of QDs in advancement of diagnostic devices.
Results: Of the QDs, unlike the II-VI type QDs (e.g., cadmium (Cd), selenium (Se) or tellurium (Te)) that possess inherent cytotoxicity, the I-III-VI 2 type QDs (e.g., AgInS2, CuInS2, ZnS-AgInS2) appear to be less toxic bioimaging agents with better control of band-gap energies. As highly-sensitive bioimaging probes, advanced hybrid QDs (e.g., QD-QD, fluorochrome-QD conjugates used for sensing through fluorescence resonance energy transfer (FRET), quenching, and barcoding techniques) have also been harnessed for the detection of biomarkers and the monitoring of delivery of drugs/genes to the target sites. Antibody-QD (Ab-QD) and aptamer- QD (Ap-QD) bioconjugates, once target the relevant biomarker, can provide highly stable photoluminescence (PL) at the target sites. In addition to their potential as nanobiosensors, the bioconjugates of QDs with homing devices have successfully been used for the development of smart nanosystems (NSs) providing targeted bioimaging and photodynamic therapy (PDT).
Conclusion: Having possessed great deal of photonic characteristics, QDs can be used for development of seamless multifunctional nanomedicines, theranostics and nanobiosensors.
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Affiliation(s)
- Omid Mashinchian
- Research Center for Pharmaceutical Nanotechnology, Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran ; Department of Medical Nanotechnology, School of Advanced Technologies in Medicine (SATiM), Tehran University of Medical Sciences, Tehran, Iran
| | - Mohammad Johari-Ahar
- Research Center for Pharmaceutical Nanotechnology, Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Behnaz Ghaemi
- Department of Medical Nanotechnology, School of Advanced Technologies in Medicine (SATiM), Tehran University of Medical Sciences, Tehran, Iran
| | - Mohammad Rashidi
- Research Center for Pharmaceutical Nanotechnology, Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran ; Department of Photonics, School of Engineering-Emerging Technology, University of Tabriz, Tabriz, Iran
| | - Jaleh Barar
- Research Center for Pharmaceutical Nanotechnology, Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Yadollah Omidi
- Research Center for Pharmaceutical Nanotechnology, Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran
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34
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Zhuang D, Shen H, Liu G, Yu C, Yang J. A combining signal amplification of atom transfer radical polymerization and redox polymerization for visual biomolecules detection. ACTA ACUST UNITED AC 2014. [DOI: 10.1002/pola.27303] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Dequan Zhuang
- State Key Laboratory of Chemical Resource, College of Life Science and Technology; Beijing University of Chemical Technology; Beijing 100029 China
| | - Heyun Shen
- State Key Laboratory of Chemical Resource, College of Life Science and Technology; Beijing University of Chemical Technology; Beijing 100029 China
| | - Guodong Liu
- State Key Laboratory of Chemical Resource, College of Life Science and Technology; Beijing University of Chemical Technology; Beijing 100029 China
| | - Changyuan Yu
- State Key Laboratory of Chemical Resource, College of Life Science and Technology; Beijing University of Chemical Technology; Beijing 100029 China
| | - Jing Yang
- State Key Laboratory of Chemical Resource, College of Life Science and Technology; Beijing University of Chemical Technology; Beijing 100029 China
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Zhao MX, Li Y, Zeng EZ, Wang CJ. The application of CdSe quantum dots with multicolor emission as fluorescent probes for cell labeling. Chem Asian J 2014; 9:1349-55. [PMID: 24616373 DOI: 10.1002/asia.201301692] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2013] [Indexed: 12/16/2022]
Abstract
Herein, highly luminescent CdSe quantum dots (QDs) with emissions from the blue to the red region of visible light were synthesized by using a simple method. The emission range of the CdSe QDs could be tuned from λ=503 to 606 nm by controlling the size of the CdSe QDs. Two amino acids, L-tryptophan (L-Trp) and L-arginine (L-Arg), were used as coating agents. The quantum yield (QY) of CdSe QDs (green color) with an optimized thickness could reach up to 52 %. The structures and compositions of QDs were examined by using X-ray diffraction (XRD) and transmission electron microscopy (TEM). Optical properties were studied by using UV/Vis and photoluminescence (PL) spectroscopy and a comparison was made between uncoated and coated CdSe QDs. The amino acid-modified β-cyclodextrin (CD)-coated CdSe QDs presented lower cytotoxicity to cells for 48 h. Furthermore, amino acid-modified β-CD-coated green CdSe QDs in HepG2 cells were assessed by using confocal laser scanning fluorescence microscopy. The results showed that amino acid-modified β-CD-coated green CdSe QDs could enter tumor cells efficiently and indicated that biomolecule-coated QDs could be used as a potential fluorescent probe.
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Affiliation(s)
- Mei-Xia Zhao
- Key Laboratory of Natural Medicine and Immune Engineering, Henan University, Kaifeng 475004 (China), Fax: (+86) 371-22864665.
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RAFT-based tri-component fluorescent glycopolymers: synthesis, characterization and application in lectin-mediated bacterial binding study. Glycoconj J 2013; 31:133-43. [PMID: 24218180 PMCID: PMC3901943 DOI: 10.1007/s10719-013-9508-4] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2013] [Revised: 09/30/2013] [Accepted: 10/28/2013] [Indexed: 01/08/2023]
Abstract
A group of fluorescent statistical glycopolymers, prepared via reversible addition–fragmentation chain-transfer (RAFT)-based polymerizations, were successfully employed in lectin-mediated bacterial binding studies. The resultant glycopolymers contained three different monomers: N-(2-hydroxyethyl) acrylamide (HEAA), N-(2-aminoethyl) methacrylamide (AEMA) and N-(2-glyconamidoethyl)-methacrylamides possessing different pendant sugars. Low dispersities (≤1.32) and predictable degrees of polymerization were observed among the products. After the polymerization, the glycopolymers were further modified by different succinimidyl ester fluorophores targeting the primary amine groups on AEMA. With their binding specificities being confirmed by testing with lectin coated agarose beads, the glycopolymers were employed in bacterial binding studies, where polymers containing α-galactose or β-galactose as the pendant sugar were specifically bound by two clinically important pathogens Pseudomonas aeruginosa and Staphylococcus aureus, respectively. This is the first report of using RAFT-based glycopolymers in bacterial binding studies, and the ready access to tri-component statistical glycopolymers also warrants further exploration of their utility in other glycobiological applications.
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Sun H, Zhang F, Wei H, Yang B. The effects of composition and surface chemistry on the toxicity of quantum dots. J Mater Chem B 2013; 1:6485-6494. [PMID: 32261324 DOI: 10.1039/c3tb21151g] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Recently, researchers have paid much attention to the toxicity of QDs because of their rapidly increasing application in biomedicine. Recent investigations have indicated that QDs have influences on biological systems at the cellular, subcellular, and protein levels during the processes of imaging and therapeutic applications. The toxicity of QDs is related to their composition, surface functionality, size, shape, and charge, etc. among which composition and surface modification are two important elements. This feature article mainly concentrates on the latest developments in reducing QD toxicity by manipulating their composition and surface modification. Besides the cadmium-based QDs, the assessment of toxicity in vitro and in vivo for other QDs such as carbon dots, graphene QDs, silicon QDs, Ag2Se QDs, CuInS2@ZnS, InP QDs, hybrid QDs of carbon and CdSe@ZnS, etc., is generalized. Each kind of QD has its own advantages. Cadmium-based QDs have broad UV excitation, narrow emission and bright photoluminescence (PL), while cadmium-free ones present low toxicity. In fact, a lot of investigations show that the toxicity of QDs is dose dependent, whatever the composition. Consequently, surface modification becomes very important to reduce toxicity and simultaneously impart biocompatibility, stability, and specificity to QDs. Therefore, the functionalization of QDs with inorganic shells (e.g., CdSe@ZnS, CdSe@SiO2), polymers, bio- or natural macromolecules is summarized. Future research work should concentrate on preparing novel QDs with appropriate surface modification and investigating the long-term influence of QDs on absorption, distribution, metabolism, and elimination in vivo, especially for cadmium-free QDs such as carbon-based QDs, Ag2Se QDs, CuInS2@ZnS QDs and InP QDs, etc.
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Affiliation(s)
- Haizhu Sun
- College of Chemistry, Northeast Normal University, Changchun 130024, P.R. China
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Li L, Lin H, Lei C, Nie Z, Huang Y, Yao S. Label-free fluorescence assay for thrombin based on unmodified quantum dots. Biosens Bioelectron 2013; 54:42-7. [PMID: 24240167 DOI: 10.1016/j.bios.2013.10.021] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2013] [Revised: 10/14/2013] [Accepted: 10/15/2013] [Indexed: 12/01/2022]
Abstract
Rapid and sensitive assay of thrombin and its inhibition in a high-throughput manner is of great significance in the diagnostic and pharmaceutical fields. In this article, we developed a novel biosensor for the detection of thrombin and its inhibition based on the aggregation behavior of the unmodified CdTe QDs. A cationic substrate peptide of thrombin (GGLVPRGSCC-NH2, S-peptide) can attach to the surface of CdTe QDs, partly balance their surface negative charge, and induce the aggregation of QDs, which results in the fluorescence quenching of QDs. After hydrolysis of S-peptide by thrombin, two kinds of shorter peptides (P1-peptide, GGLVPR, and P2-peptide, GSCC) are produced. The uncharged P2-peptide rather than the cationic P1-peptide would bind to QDs. Hence, the CdTe QDs were kept stable in the solution with the fluorescence being maintained. The change of fluorescence intensity would sensitively respond to thrombin activity and its inhibition. Fluorescence spectroscopy, transmission electron microscopy and dynamic light scattering were performed to discuss the quenching mechanism. Under optimized conditions, this method enables measurement of thrombin in the range of 10-100 μU/mL with the detection limit of 1.5 μU/mL. Not only in buffer, but also in blood serum, such sensor exhibited extraordinarily high sensitivity and excellent specificity. In addition, the typical inhibitor of thrombin, hirudin, was also successfully assayed by this method (from 2 μU/mL to 30 μU/mL with the LOD of 0.21 μU/mL). Furthermore, the present approach could also be potentially extended to other proteases and their inhibitors detection with unmodified CdTe QDs.
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Affiliation(s)
- Lijun Li
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Yuelu shan, Changsha, Hunan 410082, PR China
| | - Hui Lin
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Yuelu shan, Changsha, Hunan 410082, PR China
| | - Chunyang Lei
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Yuelu shan, Changsha, Hunan 410082, PR China
| | - Zhou Nie
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Yuelu shan, Changsha, Hunan 410082, PR China
| | - Yan Huang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Yuelu shan, Changsha, Hunan 410082, PR China.
| | - Shouzhuo Yao
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Yuelu shan, Changsha, Hunan 410082, PR China
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Synthesis of Glycopolymer Architectures by Reversible-Deactivation Radical Polymerization. Polymers (Basel) 2013. [DOI: 10.3390/polym5020431] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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Fahrer J, Schweitzer B, Fiedler K, Langer T, Gierschik P, Barth H. C2-streptavidin mediates the delivery of biotin-conjugated tumor suppressor protein p53 into tumor cells. Bioconjug Chem 2013; 24:595-603. [PMID: 23506195 DOI: 10.1021/bc300563c] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
We have previously generated a recombinant C2-streptavidin fusion protein for the delivery of biotin-labeled molecules of low molecular weight into the cytosol of mammalian cells. A nontoxic moiety of Clostridium botulinum C2 toxin mediates the cellular uptake, whereas the streptavidin unit serves as a binding platform for biotin-labeled cargo molecules. In the present study, we used the C2-streptavidin transporter to introduce biotin-conjugated p53 protein into various mammalian cell lines. The p53 tumor suppressor protein is inactivated in many human cancers by multiple mechanisms and therefore the restoration of its activity in tumor cells is of great therapeutic interest. Recombinant p53 was expressed in insect cells and biotin-labeled. Biotin-p53 retained its specific high-affinity DNA-binding as revealed by gel-shift analysis. Successful conjugation of biotin-p53 to the C2-streptavidin transporter was monitored by an overlay blot technique and confirmed by real-time surface plasmon resonance, providing a KD-value in the low nM range. C2-streptavidin significantly enhanced the uptake of biotin-p53 into African Green Monkey (Vero) epithelial cells as shown by flow cytometry. Using cell fractionation, the cytosolic translocation of biotin-p53 was detected in Vero cells as well as in HeLa cervix carcinoma cells. In line with this finding, confocal microscopy displayed cytoplasmic staining of biotin-p53 in HeLa and HL60 leukemia cells. Internalized biotin-p53 partially colocalized with early endosomes, as confirmed by confocal microscopy. In conclusion, our results demonstrate the successful conjugation of biotin-p53 to C2-streptavidin and its subsequent receptor-mediated endocytosis into different human tumor cell lines.
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Affiliation(s)
- Jörg Fahrer
- Institute of Pharmacology and Toxicology, University of Ulm Medical Center, Albert-Einstein-Allee 11, D-89081 Ulm, Germany
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Kotsuchibashi Y, Agustin RVC, Lu JY, Hall DG, Narain R. Temperature, pH, and Glucose Responsive Gels via Simple Mixing of Boroxole- and Glyco-Based Polymers. ACS Macro Lett 2013; 2:260-264. [PMID: 35581893 DOI: 10.1021/mz400076p] [Citation(s) in RCA: 94] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Statistical copolymers of N-isopropylacrylamide (NIPAAm) and 5-methacrylamido-1,2-benzoxaborole (MAAmBo) have been synthesized by reversible addition-fragmentation chain transfer (RAFT) polymerization. The solution properties of the NIPAAm homopolymers and statistical copolymers were investigated and it was found that, besides temperature and pH, the statistical copolymers were also responsive to the presence of free glucose in solution. Furthermore, responsive hydrogels and nanogels were formed spontaneously by simply mixing the statistical copolymers of P(NIPAAm-st-MAAmBO)s and well-defined glycopolymers. These gels were found to have temperature, pH, and glucose responsive properties.
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Affiliation(s)
- Yohei Kotsuchibashi
- Department of Chemical
and Materials Engineering and Alberta Glycomics
Centre, University of Alberta, Edmonton, Alberta, T6G 2G6, Canada
| | - Roman Vincent C. Agustin
- Department of Chemical
and Materials Engineering and Alberta Glycomics
Centre, University of Alberta, Edmonton, Alberta, T6G 2G6, Canada
| | - Jin-Yong Lu
- Department of Chemistry, W5-07 Gunning-Lemieux
Chemistry Centre, University of Alberta, Edmonton, Alberta, T6G 2G2 Canada
| | - Dennis G. Hall
- Department of Chemistry, W5-07 Gunning-Lemieux
Chemistry Centre, University of Alberta, Edmonton, Alberta, T6G 2G2 Canada
| | - Ravin Narain
- Department of Chemical
and Materials Engineering and Alberta Glycomics
Centre, University of Alberta, Edmonton, Alberta, T6G 2G6, Canada
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Kotsuchibashi Y, Zhang Y, Ahmed M, Ebara M, Aoyagi T, Narain R. Fabrication of FITC‐doped silica nanoparticles and study of their cellular uptake in the presence of lectins. J Biomed Mater Res A 2013; 101:2090-6. [DOI: 10.1002/jbm.a.34498] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2012] [Revised: 09/29/2012] [Accepted: 10/18/2012] [Indexed: 12/18/2022]
Affiliation(s)
- Yohei Kotsuchibashi
- Biomaterials Unit, National Institute for Materials Science (NIMS), 1‐1 Namiki, Tsukuba, Ibaraki, 305‐0044, Japan
- Department of Chemical and Materials Engineering and Alberta Glycomics Centre, University of Alberta, Edmonton, AB, T6G2G6, Canada
- Japan Society for the Promotion of Science (JSPS), 8 Ichibancho, Chiyoda‐ku, Tokyo, 102‐8472, Japan
| | - Yiyao Zhang
- Department of Chemical and Materials Engineering and Alberta Glycomics Centre, University of Alberta, Edmonton, AB, T6G2G6, Canada
| | - Marya Ahmed
- Department of Chemical and Materials Engineering and Alberta Glycomics Centre, University of Alberta, Edmonton, AB, T6G2G6, Canada
| | - Mitsuhiro Ebara
- Biomaterials Unit, National Institute for Materials Science (NIMS), 1‐1 Namiki, Tsukuba, Ibaraki, 305‐0044, Japan
| | - Takao Aoyagi
- Biomaterials Unit, National Institute for Materials Science (NIMS), 1‐1 Namiki, Tsukuba, Ibaraki, 305‐0044, Japan
- Graduate School of Pure and Applied Sciences, University of Tsukuba, 1‐1‐1 Tenodai, Tsukuba, Ibaraki, 305‐8571, Japan
| | - Ravin Narain
- Department of Chemical and Materials Engineering and Alberta Glycomics Centre, University of Alberta, Edmonton, AB, T6G2G6, Canada
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Yamada M, Harada K, Maeda Y, Hasegawa T. A versatile approach to functionalisation of [60]fullerene using 3-trifluoromethyl-3-phenyldiazirine derivatives as photolabelling reagents. NEW J CHEM 2013. [DOI: 10.1039/c3nj00796k] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Bavireddi H, Kikkeri R. Glyco-β-cyclodextrin capped quantum dots: synthesis, cytotoxicity and optical detection of carbohydrate-protein interactions. Analyst 2012; 137:5123-7. [PMID: 23001235 DOI: 10.1039/c2an35983a] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Highly fluorescent water soluble glyco-quantum dots were synthesized using a sonochemical procedure. The synthetic approach is based on specific host-guest interactions between β-cyclodextrin (β-CD) and trioctylphosphine oxide (TOPO) surfactant on quantum dots. The modified QDs were analyzed by a combination of FT-IR, (1)H-NOESY NMR spectroscopy and by TEM. The high sugar density on QDs resulted in selective colloidal aggregation with ConcanavalinA (ConA), Galanthus nivalis lectin (GNA) and Peanut agglutinin (PNA) lectins. Subsequently, in vitro studies indicated that β-CD modification of QDs enabled good cell viability of human hepatocellular carcinoma cell line (HepG2) cells. Finally, flow cytometry and confocal imaging studies revealed that βCDgal capped QDs undergo preferential binding with HepG2 cells. These results clearly demonstrate that β-CD capped QDs could be a promising candidate for further carbohydrate-based biomedical applications.
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Affiliation(s)
- Harikrishna Bavireddi
- Indian Institute of Science Education and Research, Sai Trinity Building, Pashan, Pune 411021, India
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Miura Y. Design and synthesis of well-defined glycopolymers for the control of biological functionalities. Polym J 2012. [DOI: 10.1038/pj.2012.4] [Citation(s) in RCA: 110] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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Zhao MX, Ji LN, Mao ZW. β-Cyclodextrin/glycyrrhizic acid functionalised quantum dots selectively enter hepatic cells and induce apoptosis. Chemistry 2012; 18:1650-8. [PMID: 22213427 DOI: 10.1002/chem.201102795] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2011] [Indexed: 02/02/2023]
Abstract
The use of active components from important medical herbs has proved effective in treating various cancers. Glycyrrhizic acid (GA) is one of the many interesting triterpenoic acids with anticancerogenic potential, and is known to trigger apoptosis in hepatocarcinoma cells. In this study we combined quantum dots (QDs) with GA in the presence of β-cyclodextrin (β-CD), and prepared β-CD/GA-functionalised QDs, which led to improved antitumor activity and induced apoptosis in hepatocarcinoma cells. These compounds showed a better selectivity for hepatic cells compared to HeLa and ECV-304 cells. Hoechst and annexin V-FITC staining and mitochondrial membrane potential (MMP) experiments proved an apoptotic effect of these compounds on HepG2 cells. At the same time, transmission electron microscopy (TEM) showed obvious features of apoptosis, for example, irregularities of nuclear shapes, mitochondria swelling, clumping and peripheral chromatin condensation, zeiosis or blebbing of the plasma membrane and formation of apoptotic bodies. It is notable that β-CD/GA-functionalised QDs showed effective cell growth inhibition by triggering G0/G1 phase arrest and inducing apoptosis through an reactive oxygen species mediated mitochondrial dysfunction pathway. β-CD/GA-functionalised QDs primarily induced apoptotic response in a time- and dose-dependent manner, but little apoptosis appeared with L-Cys-β-CD-functionalised QDs or GA alone. These studies suggest that β-CD/GA-functionalised QDs have therapeutic potential against cancer.
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Affiliation(s)
- Mei-Xia Zhao
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry and Chemical Engineering, Sun Yat-Sen University, Guangzhou 510275, P.R. China
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LDV peptidomimetics equipped with biotinylated spacer-arms: Synthesis and biological evaluation on CCRF-CEM cell line. Bioorg Med Chem Lett 2012; 22:586-90. [DOI: 10.1016/j.bmcl.2011.10.078] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2011] [Revised: 10/21/2011] [Accepted: 10/23/2011] [Indexed: 11/21/2022]
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Preparation and lectin binding specificity of polystyrene particles grafted with glycopolymers bearing S-linked carbohydrates. Eur Polym J 2011. [DOI: 10.1016/j.eurpolymj.2011.09.016] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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Singh I, Freeman C, Heaney F. Efficient Synthesis of DNA Conjugates by Strain-Promoted Azide-Cyclooctyne Cycloaddition in the Solid Phase. European J Org Chem 2011. [DOI: 10.1002/ejoc.201101045] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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