1
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Exner R, Cortezon-Tamarit F, Ge H, Pourzand C, Pascu SI. Unraveling the Chemistry of meso-Cl Tricarbocyanine Dyes in Conjugation Reactions for the Creation of Peptide Bonds. ACS BIO & MED CHEM AU 2022; 2:642-654. [PMID: 36573095 PMCID: PMC9782398 DOI: 10.1021/acsbiomedchemau.2c00053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Revised: 10/12/2022] [Accepted: 10/13/2022] [Indexed: 11/10/2022]
Abstract
Tricarbocyanine dyes have become popular tools in life sciences and medicine. Their near-infrared (NIR) fluorescence makes them ideal agents for imaging of thick specimens or in vivo imaging, e.g., in fluorescence-guided surgery. Among other types of cyanine dyes, meso-Cl tricarbocyanine dyes have received a surge of interest, as it emerged that their high reactivity makes them inherently tumor-targeting. As such, significant research efforts have focused on conjugating these to functional moieties. However, the syntheses generally suffer from low yields. Hereby, we report on the reaction of meso-Cl dyes with a small selection of coupling reagents to give the corresponding keto-polymethines, potentially explaining low yields and the prevalence of monofunctionalized cyanine conjugates in the current state of the art of functional near-infrared dyes. We present the synthesis and isolation of the first keto-polymethine-based conjugate and present preliminary investigation in the prostate cancer cell lines PC3 and DU145 by confocal microscopy and discuss changes to optical properties in biological media.
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Affiliation(s)
- Rüdiger
M. Exner
- Department
of Chemistry, University of Bath, Claverton Down Road, BA2 7AY Bath, U.K.
| | | | - Haobo Ge
- Department
of Chemistry, University of Bath, Claverton Down Road, BA2 7AY Bath, U.K.
| | - Charareh Pourzand
- Department
of Pharmacy and Pharmacology, University
of Bath, Claverton Down
Road, BA2 7AY Bath, U.K.,Centre
of Therapeutic Innovations, University of
Bath, Claverton Down
Road, BA2 7AY Bath, U.K.
| | - Sofia I. Pascu
- Department
of Chemistry, University of Bath, Claverton Down Road, BA2 7AY Bath, U.K.,Centre
of Therapeutic Innovations, University of
Bath, Claverton Down
Road, BA2 7AY Bath, U.K.,
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2
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Aldrich KE, Livshits MY, Stromberg LR, Janicke MT, Nhu Lam M, Stein B, Wagner GL, Abergel RJ, Mukundan H, Kozimor SA, Lilley LM. Th IV-Desferrioxamine: characterization of a fluorescent bacterial probe. Dalton Trans 2021; 50:15310-15320. [PMID: 34636377 DOI: 10.1039/d1dt02177j] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Diversifying our ability to guard against emerging pathogenic threats is essential for keeping pace with global health challenges, including those presented by drug-resistant bacteria. Some modern diagnostic and therapeutic innovations to address this challenge focus on targeting methods that exploit bacterial nutrient sequestration pathways, such as the desferrioxamine (DFO) siderophore used by Staphylococcus aureus (S. aureus) to sequester FeIII. Building on recent studies that have shown DFO to be a versatile vehicle for chemical delivery, we show proof-of-principle that the FeIII sequestration pathway can be used to deliver a potential radiotherapeutic. Our approach replaces the FeIII nutrient sequestered by H4DFO+ with ThIV and made use of a common fluorophore, FITC, which we covalently bonded to DFO to provide a combinatorial probe for simultaneous chelation paired with imaging and spectroscopy, H3DFO_FITC. Combining insight provided from FITC-based imaging with characterization by NMR spectroscopy, we demonstrated that the fluorescent DFO_FITC conjugate retained the ThIV chelation properties of native H4DFO+. Fluorescence microscopy with both [Th(DFO_FITC)] and [Fe(DFO_FITC)] complexes showed similar uptake by S. aureus and increased intercellular accumulation as compared to the FITC and unchelated H3DFO_FITC controls. Collectively, these results demonstrate the potential for the newly developed H3DFO_FITC conjugate to be used as a targeting vector and bacterial imaging probe for S. aureus. The results presented within provide a framework to expand H4DFO+ and H3DFO_FITC to relevant radiotherapeutics (like 227Th).
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Affiliation(s)
| | | | | | | | - Mila Nhu Lam
- Los Alamos National Laboratory, Los Alamos, New Mexico, 87545, USA.
| | - Benjamin Stein
- Los Alamos National Laboratory, Los Alamos, New Mexico, 87545, USA.
| | | | - Rebecca J Abergel
- Department of Chemistry, University of California, Berkeley, California, 94720, USA
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3
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[ 68Ga]Ga-DFO-c(RGDyK): Synthesis and Evaluation of Its Potential for Tumor Imaging in Mice. Int J Mol Sci 2021; 22:ijms22147391. [PMID: 34299008 PMCID: PMC8306578 DOI: 10.3390/ijms22147391] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Revised: 07/06/2021] [Accepted: 07/06/2021] [Indexed: 11/30/2022] Open
Abstract
Angiogenesis has a pivotal role in tumor growth and the metastatic process. Molecular imaging was shown to be useful for imaging of tumor-induced angiogenesis. A great variety of radiolabeled peptides have been developed to target αvβ3 integrin, a target structure involved in the tumor-induced angiogenic process. The presented study aimed to synthesize deferoxamine (DFO)-based c(RGD) peptide conjugate for radiolabeling with gallium-68 and perform its basic preclinical characterization including testing of its tumor-imaging potential. DFO-c(RGDyK) was labeled with gallium-68 with high radiochemical purity. In vitro characterization including stability, partition coefficient, protein binding determination, tumor cell uptake assays, and ex vivo biodistribution as well as PET/CT imaging was performed. [68Ga]Ga-DFO-c(RGDyK) showed hydrophilic properties, high stability in PBS and human serum, and specific uptake in U-87 MG and M21 tumor cell lines in vitro and in vivo. We have shown here that [68Ga]Ga-DFO-c(RGDyK) can be used for αvβ3 integrin targeting, allowing imaging of tumor-induced angiogenesis by positron emission tomography.
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4
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Pfister J, Summer D, Petrik M, Khoylou M, Lichius A, Kaeopookum P, Kochinke L, Orasch T, Haas H, Decristoforo C. Hybrid Imaging of Aspergillus fumigatus Pulmonary Infection with Fluorescent, 68Ga-Labelled Siderophores. Biomolecules 2020; 10:E168. [PMID: 31979017 PMCID: PMC7072563 DOI: 10.3390/biom10020168] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Revised: 01/14/2020] [Accepted: 01/19/2020] [Indexed: 01/16/2023] Open
Abstract
Aspergillus fumigatus (A. fumigatus) is a human pathogen causing severe invasive fungal infections, lacking sensitive and selective diagnostic tools. A. fumigatus secretes the siderophore desferri-triacetylfusarinine C (TAFC) to acquire iron from the human host. TAFC can be labelled with gallium-68 to perform positron emission tomography (PET/CT) scans. Here, we aimed to chemically modify TAFC with fluorescent dyes to combine PET/CT with optical imaging for hybrid imaging applications. Starting from ferric diacetylfusarinine C ([Fe]DAFC), different fluorescent dyes were conjugated (Cy5, SulfoCy5, SulfoCy7, IRDye 800CW, ATTO700) and labelled with gallium-68 for in vitro and in vivo characterisation. Uptake assays, growth assays and live-cell imaging as well as biodistribution, PET/CT and ex vivo optical imaging in an infection model was performed. Novel fluorophore conjugates were recognized by the fungal TAFC transporter MirB and could be utilized as iron source. Fluorescence microscopy showed partial accumulation into hyphae. µPET/CT scans of an invasive pulmonary aspergillosis (IPA) rat model revealed diverse biodistribution patterns for each fluorophore. [68Ga]Ga-DAFC-Cy5/SufloCy7 and -IRDye 800CW lead to a visualization of the infected region of the lung. Optical imaging of ex vivo lungs corresponded to PET images with high contrast of infection versus non-infected areas. Although fluorophores had a decisive influence on targeting and pharmacokinetics, these siderophores have potential as a hybrid imaging compounds combining PET/CT with optical imaging applications.
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Affiliation(s)
- Joachim Pfister
- Department of Nuclear Medicine, Medical University Innsbruck, A-6020 Innsbruck, Austria; (J.P.); (D.S.); (P.K.); (L.K.)
| | - Dominik Summer
- Department of Nuclear Medicine, Medical University Innsbruck, A-6020 Innsbruck, Austria; (J.P.); (D.S.); (P.K.); (L.K.)
| | - Milos Petrik
- Institute of Molecular and Translational Medicine, Faculty of Medicine and Dentistry, Palacky University Olomouc, 772-00 Olomouc, Czech Republic; (M.P.); (M.K.)
| | - Marta Khoylou
- Institute of Molecular and Translational Medicine, Faculty of Medicine and Dentistry, Palacky University Olomouc, 772-00 Olomouc, Czech Republic; (M.P.); (M.K.)
| | - Alexander Lichius
- Department of Microbiology, University Innsbruck, A-6020 Innsbruck, Austria;
| | - Piriya Kaeopookum
- Department of Nuclear Medicine, Medical University Innsbruck, A-6020 Innsbruck, Austria; (J.P.); (D.S.); (P.K.); (L.K.)
| | - Laurin Kochinke
- Department of Nuclear Medicine, Medical University Innsbruck, A-6020 Innsbruck, Austria; (J.P.); (D.S.); (P.K.); (L.K.)
| | - Thomas Orasch
- Division of Molecular Biology, Medical University Innsbruck, A-6020 Innsbruck, Austria; (T.O.); (H.H.)
| | - Hubertus Haas
- Division of Molecular Biology, Medical University Innsbruck, A-6020 Innsbruck, Austria; (T.O.); (H.H.)
| | - Clemens Decristoforo
- Department of Nuclear Medicine, Medical University Innsbruck, A-6020 Innsbruck, Austria; (J.P.); (D.S.); (P.K.); (L.K.)
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Unnikrishnan S, Du Z, Diakova GB, Klibanov AL. Formation of Microbubbles for Targeted Ultrasound Contrast Imaging: Practical Translation Considerations. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:10034-10041. [PMID: 30509068 DOI: 10.1021/acs.langmuir.8b03551] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
For preparation of ligand-decorated microbubbles for targeted ultrasound contrast imaging, it is important to maximize the amount of ligand associated with the bubble shell. We describe optimization of the use of a biocompatible cosurfactant in the microbubble formulation media to maximize the incorporation of targeting ligand-lipid conjugate into the microbubble shell, and thus reduce the fraction of ligand not associated with microbubbles, following amalgamation preparation. The influence of the concentration of a helper cosurfactant propylene glycol (PG) on the efficacy of microbubble preparation by amalgamation and on the degree of association of fluorescent PEG-lipid with the microbubble shell was tested. Three sets of targeted bubbles were then prepared: with VCAM-1-targeting peptide VHPKQHRGGSK(FITC)GC-PEG-DSPE, cyclic RGDfK-PEG-DSPE, selective for αVβ3, and control cRADfK-PEG-DSPE, without such affinity. Microbubbles were prepared by 45 s amalgamation, with DSPC and PEG stearate as the main components of the shell, with 15% PG in aqueous saline. In vitro microbubble targeting was assessed with a parallel plate flow chamber with a recombinant receptor coated surface. In vivo targeting was assessed in MC-38 tumor-bearing mice (subcutaneous tumor in hind leg), 10 min after intravenous bolus of microbubble contrast agent (20 million particles per injection). Ultrasound imaging of the tumor and control nontarget muscle tissue in a contralateral leg was performed with a clinical scanner. Amalgamation technique with PG cosurfactant produced microbubbles at concentrations exceeding 2 × 109 particles/mL, and ∼50-60% or more of the added fluorescein-PEG-DSPE or VCAM-1-targeted fluorescent peptide was associated with microbubbles, about 2 times higher than that in the absence of PG. After intravenous injection, peptide-targeted bubbles selectively accumulated in the tumor vasculature, with negligible accumulation in nontumor contralateral leg muscle, or with control nontargeted microbubbles (assessed by contrast ultrasound imaging). For comparison, administration of RGD-decorated microbubbles prepared by traditional sonication, and purified from free peptide-PEG-lipid by repeated centrifugation, resulted in the same accumulation pattern as for translatable amalgamated microbubbles. Following amalgamation in the presence of PG, efficient transfer of ligand-PEG-lipid to microbubble shell was achieved and quantified. Purification of microbubbles from free peptide-PEG-lipid was not necessary, as proven by in vitro and in vivo targeting studies, so PG cosurfactant amalgamation technique generated peptide-targeted microbubbles are amenable for bedside preparation and clinical translation. The pathway to clinical translation is simplified by the fact that most of the materials used in this study either are on the United States Food and Drug Administration GRAS list or can be procured as pharmaceutical grade substances.
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Affiliation(s)
- Sunil Unnikrishnan
- Department of Biomedical Engineering , University of Virginia , Charlottesville , Virginia 22908 , United States
| | - Zhongmin Du
- Cardiovascular Division, Department of Medicine, Robert M. Berne Cardiovascular Research Center , University of Virginia School of Medicine , Charlottesville , Virginia 22908 , United States
| | - Galina B Diakova
- Cardiovascular Division, Department of Medicine, Robert M. Berne Cardiovascular Research Center , University of Virginia School of Medicine , Charlottesville , Virginia 22908 , United States
| | - Alexander L Klibanov
- Cardiovascular Division, Department of Medicine, Robert M. Berne Cardiovascular Research Center , University of Virginia School of Medicine , Charlottesville , Virginia 22908 , United States
- Department of Biomedical Engineering , University of Virginia , Charlottesville , Virginia 22908 , United States
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6
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Han Z, Lv L, Ma Y, Wang Z, Liu Y, Zhang M, Li S, Gu Y. Cypate-mediated thermosensitive nanoliposome for tumor imaging and photothermal triggered drug release. JOURNAL OF BIOPHOTONICS 2017; 10:1607-1616. [PMID: 28106955 DOI: 10.1002/jbio.201600270] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/21/2016] [Revised: 12/05/2016] [Accepted: 12/12/2016] [Indexed: 06/06/2023]
Abstract
It is an emerging focus to explore controlled release drug delivery systems for simultaneous cancer imaging and therapy. Herein, we synthesized a photothermal sensitive multifunctional nano-liposome drug delivery system, with doxorubicin wrapped in the hydropholic layer as the therapeutical agent and cypate doped in the hydrophobic layer as the diagnostic agent. A series of in vitro and in vivo characterization demonstrated the stability of synthesized liposome, as the DL% was 9 ± 1.5 and the EE% was 82.7 ± 2.1. And the liposome achieved the functions of target-delivery, enhanced photochemical internalized drug release, and simultaneous chemotherapy and thermal therapy, indicating that this multifunctional nano-liposome is a promising drug delivery system for tumor diagnosis and targeting therapy.
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Affiliation(s)
- Zhihao Han
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Drug Screening, Department of Biomedicine Engineering, School of Engineering, China Pharmaceutical University, No. 24 Tongjia Lane, Gulou District, Nanjing, 210009, China
| | - Liwei Lv
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Drug Screening, Department of Biomedicine Engineering, School of Engineering, China Pharmaceutical University, No. 24 Tongjia Lane, Gulou District, Nanjing, 210009, China
| | - Yi Ma
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Drug Screening, Department of Biomedicine Engineering, School of Engineering, China Pharmaceutical University, No. 24 Tongjia Lane, Gulou District, Nanjing, 210009, China
| | - Zhaohui Wang
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Drug Screening, Department of Biomedicine Engineering, School of Engineering, China Pharmaceutical University, No. 24 Tongjia Lane, Gulou District, Nanjing, 210009, China
| | - Yuxi Liu
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Drug Screening, Department of Biomedicine Engineering, School of Engineering, China Pharmaceutical University, No. 24 Tongjia Lane, Gulou District, Nanjing, 210009, China
| | - Min Zhang
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Drug Screening, Department of Biomedicine Engineering, School of Engineering, China Pharmaceutical University, No. 24 Tongjia Lane, Gulou District, Nanjing, 210009, China
| | - Siwen Li
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Drug Screening, Department of Biomedicine Engineering, School of Engineering, China Pharmaceutical University, No. 24 Tongjia Lane, Gulou District, Nanjing, 210009, China
| | - Yueqing Gu
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Drug Screening, Department of Biomedicine Engineering, School of Engineering, China Pharmaceutical University, No. 24 Tongjia Lane, Gulou District, Nanjing, 210009, China
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7
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Mudhulkar R, Nair RR, Raval IH, Haldar S, Chatterjee PB. Visualizing Zn2+in Living Whole OrganismArtemiaby a Natural Fluorimetric Intermediate Siderophore. ChemistrySelect 2017. [DOI: 10.1002/slct.201701071] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Raju Mudhulkar
- Analytical Division and Centralized Instrument Facility; CSIR-CSMCRI, G. B. Marg; Bhavnagar 364002, Gujarat INDIA
| | - Ratish R. Nair
- Analytical Division and Centralized Instrument Facility; CSIR-CSMCRI, G. B. Marg; Bhavnagar 364002, Gujarat INDIA
| | - Ishan H. Raval
- Marine Biotechnology and Ecology Division; CSIR-CSMCRI, G. B. Marg; Bhavnagar 364002, Gujarat INDIA
| | - Soumya Haldar
- Marine Biotechnology and Ecology Division; CSIR-CSMCRI, G. B. Marg; Bhavnagar 364002, Gujarat INDIA
- Academy of Scientific and Innovative Research; CSIR-CSMCRI, G. B. Marg; Bhavnagar 364002, Gujarat INDIA
| | - Pabitra B. Chatterjee
- Analytical Division and Centralized Instrument Facility; CSIR-CSMCRI, G. B. Marg; Bhavnagar 364002, Gujarat INDIA
- Academy of Scientific and Innovative Research; CSIR-CSMCRI, G. B. Marg; Bhavnagar 364002, Gujarat INDIA
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8
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Summer D, Grossrubatscher L, Petrik M, Michalcikova T, Novy Z, Rangger C, Klingler M, Haas H, Kaeopookum P, von Guggenberg E, Haubner R, Decristoforo C. Developing Targeted Hybrid Imaging Probes by Chelator Scaffolding. Bioconjug Chem 2017; 28:1722-1733. [PMID: 28462989 PMCID: PMC5481817 DOI: 10.1021/acs.bioconjchem.7b00182] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Positron emission tomography (PET) as well as optical imaging (OI) with peptide receptor targeting probes have proven their value for oncological applications but also show restrictions depending on the clinical field of interest. Therefore, the combination of both methods, particularly in a single molecule, could improve versatility in clinical routine. This proof of principle study aims to show that a chelator, Fusarinine C (FSC), can be utilized as scaffold for novel dimeric dual-modality imaging agents. Two targeting vectors (a minigastrin analogue (MG11) targeting cholecystokinin-2 receptor overexpression (CCK2R) or integrin αVβ3 targeting cyclic pentapeptides (RGD)) and a near-infrared fluorophore (Sulfo-Cyanine7) were conjugated to FSC. The probes were efficiently labeled with gallium-68 and in vitro experiments including determination of logD, stability, protein binding, cell binding, internalization, and biodistribution studies as well as in vivo micro-PET/CT and optical imaging in U-87MG αVβ3- and A431-CCK2R expressing tumor xenografted mice were carried out. Novel bioconjugates showed high receptor affinity and highly specific targeting properties at both receptors. Ex vivo biodistribution and micro-PET/CT imaging studies revealed specific tumor uptake accompanied by slow blood clearance and retention in nontargeted tissues (spleen, liver, and kidneys) leading to visualization of tumors at early (30 to 120 min p.i.). Excellent contrast in corresponding optical imaging studies was achieved especially at delayed time points (24 to 72 h p.i.). Our findings show the proof of principle of chelator scaffolding for hybrid imaging agents and demonstrate FSC being a suitable bifunctional chelator for this approach. Improvements to fine-tune pharmacokinetics are needed to translate this into a clinical setting.
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Affiliation(s)
- Dominik Summer
- Department of Nuclear Medicine, Medical University Innsbruck , Anichstrasse 35, A-6020 Innsbruck, Austria
| | - Leo Grossrubatscher
- Department of Nuclear Medicine, Medical University Innsbruck , Anichstrasse 35, A-6020 Innsbruck, Austria
| | - Milos Petrik
- Institute of Molecular and Translational Medicine, Faculty of Medicine and Dentistry, Palacky University Olomouc , Hnevotinska 5, 779 00, Olomouc, Czech Republic
| | - Tereza Michalcikova
- Institute of Molecular and Translational Medicine, Faculty of Medicine and Dentistry, Palacky University Olomouc , Hnevotinska 5, 779 00, Olomouc, Czech Republic
| | - Zbynek Novy
- Institute of Molecular and Translational Medicine, Faculty of Medicine and Dentistry, Palacky University Olomouc , Hnevotinska 5, 779 00, Olomouc, Czech Republic
| | - Christine Rangger
- Department of Nuclear Medicine, Medical University Innsbruck , Anichstrasse 35, A-6020 Innsbruck, Austria
| | - Maximilian Klingler
- Department of Nuclear Medicine, Medical University Innsbruck , Anichstrasse 35, A-6020 Innsbruck, Austria
| | - Hubertus Haas
- Division of Molecular Biology/Biocenter, Medical University Innsbruck , Innrain 80-82, A-6020 Innsbruck, Austria
| | - Piriya Kaeopookum
- Department of Nuclear Medicine, Medical University Innsbruck , Anichstrasse 35, A-6020 Innsbruck, Austria.,Ministry of Science, Technology (MOST), Thailand Institute of Nuclear Technology (TINT) , Nakhonnayok 26120, Thailand
| | - Elisabeth von Guggenberg
- Department of Nuclear Medicine, Medical University Innsbruck , Anichstrasse 35, A-6020 Innsbruck, Austria
| | - Roland Haubner
- Department of Nuclear Medicine, Medical University Innsbruck , Anichstrasse 35, A-6020 Innsbruck, Austria
| | - Clemens Decristoforo
- Department of Nuclear Medicine, Medical University Innsbruck , Anichstrasse 35, A-6020 Innsbruck, Austria
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9
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Zhang R, Deng T, Wang J, Wu G, Li S, Gu Y, Deng D. Organic-to-aqueous phase transfer of Zn–Cu–In–Se/ZnS quantum dots with multifunctional multidentate polymer ligands for biomedical optical imaging. NEW J CHEM 2017. [DOI: 10.1039/c7nj00573c] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
ZnCuInSe/ZnS QDs with widely tunable PL emissions were synthesized and water-solubilized with cRGD modified multifunctional multidentate polymer (cRGD-PME) for bioimaging.
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Affiliation(s)
- Rong Zhang
- Department of Biomedical Engineering
- School of Engineering
- China Pharmaceutical University
- Nanjing
- China
| | - Tao Deng
- Department of Pharmaceutical Engineering
- School of Engineering
- China Pharmaceutical University
- Nanjing
- China
| | - Jie Wang
- Department of Pharmaceutical Engineering
- School of Engineering
- China Pharmaceutical University
- Nanjing
- China
| | - Gang Wu
- Department of Biology
- School of Life Science and Technology
- China Pharmaceutical University
- Nanjing
- China
| | - Sirui Li
- Department of Pharmaceutical Engineering
- School of Engineering
- China Pharmaceutical University
- Nanjing
- China
| | - Yueqing Gu
- Department of Biomedical Engineering
- School of Engineering
- China Pharmaceutical University
- Nanjing
- China
| | - Dawei Deng
- Department of Biomedical Engineering
- School of Engineering
- China Pharmaceutical University
- Nanjing
- China
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10
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Das T, Poria DK, Purkayastha P. NIR-emitting chiral gold nanoclusters coated with γ-cyclodextrin are pH sensitive: Application as biomarker. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2016; 12:1105-1112. [DOI: 10.1016/j.nano.2015.12.386] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2015] [Revised: 12/29/2015] [Accepted: 12/30/2015] [Indexed: 11/16/2022]
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11
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Yin J, Hu Y, Yoon J. Fluorescent probes and bioimaging: alkali metals, alkaline earth metals and pH. Chem Soc Rev 2016; 44:4619-44. [PMID: 25317749 DOI: 10.1039/c4cs00275j] [Citation(s) in RCA: 422] [Impact Index Per Article: 52.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
All living species and life forms have an absolute requirement for bio-functional metals and acid-base equilibrium chemistry owing to the critical roles they play in biological processes. Hence, a great need exists for efficient methods to detect and monitor biometals and acids. In the last few years, great attention has been paid to the development of organic molecule based fluorescent chemosensors. The availability of new synthetic fluorescent probes has made fluorescence microscopy an indispensable tool for tracing biologically important molecules and in the area of clinical diagnostics. This review highlights the recent advances that have been made in the design and bioimaging applications of fluorescent probes for alkali metals and alkaline earth metal cations, including lithium, sodium and potassium, magnesium and calcium, and for pH determination within biological systems.
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Affiliation(s)
- Jun Yin
- Department of Chemistry and Nano Science, Global Top 5 Research Program, Ewha Womans University, Seoul 120-750, Korea.
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12
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Raju M, Patel TJ, Nair RR, Chatterjee PB. Xanthurenic acid: a natural ionophore with high selectivity and sensitivity for potassium ions in an aqueous solution. NEW J CHEM 2016. [DOI: 10.1039/c5nj02540k] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Synopsis: A well-known tryptophan metabolite, xanthurenic acid, a natural non-fluorescent intermediate siderophore, showed a very selective turn-on response to K+ over other competing metal ions and the detection limit of this natural ionophore was found to be 53 nM at physiological pH.
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Affiliation(s)
- M. Raju
- Analytical Discipline and Centralized Instrument Facility
- CSIR-CSMCRI
- Bhavnagar
- India
| | - Tapasya J. Patel
- Analytical Discipline and Centralized Instrument Facility
- CSIR-CSMCRI
- Bhavnagar
- India
| | - Ratish R. Nair
- Analytical Discipline and Centralized Instrument Facility
- CSIR-CSMCRI
- Bhavnagar
- India
| | - Pabitra B. Chatterjee
- Analytical Discipline and Centralized Instrument Facility
- CSIR-CSMCRI
- Bhavnagar
- India
- Academy of Scientific and Innovative Research
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13
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Ptaszek M. Rational design of fluorophores for in vivo applications. PROGRESS IN MOLECULAR BIOLOGY AND TRANSLATIONAL SCIENCE 2014; 113:59-108. [PMID: 23244789 DOI: 10.1016/b978-0-12-386932-6.00003-x] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Several classes of small organic molecules exhibit properties that make them suitable for fluorescence in vivo imaging. The most promising candidates are cyanines, squaraines, boron dipyrromethenes, porphyrin derivatives, hydroporphyrins, and phthalocyanines. The recent designing and synthetic efforts have been dedicated to improving their optical properties (shift the absorption and emission maxima toward longer wavelengths and increase the brightness) as well as increasing their stability and water solubility. The most notable advances include development of encapsulated cyanine dyes with increased stability and water solubility, squaraine rotaxanes with increased stability, long-wavelength-absorbing boron dipyrromethenes, long-wavelength-absorbing porphyrin and hydroporphyrin derivatives, and water-soluble phthalocyanines. Recent advances in luminescence and bioluminescence have made self-illuminating fluorophores available for in vivo applications. Development of new types of hydroporphyrin energy-transfer dyads gives the promise for further advances in in vivo multicolor imaging.
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Affiliation(s)
- Marcin Ptaszek
- Department of Chemistry and Biochemistry, University of Maryland Baltimore County, Baltimore, Maryland, USA
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14
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Deng D, Qu L, Zhang J, Ma Y, Gu Y. Quaternary Zn-Ag-In-Se quantum dots for biomedical optical imaging of RGD-modified micelles. ACS APPLIED MATERIALS & INTERFACES 2013; 5:10858-10865. [PMID: 24083409 DOI: 10.1021/am403050s] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Exploring the synthesis of new biocompatible quantum dots (QDs) helps in overcoming the intrinsic toxicity of the existing QDs composed of highly toxic heavy metals (e.g., Cd, Hg, Pb, etc.) and is particularly interesting for the future practical application of QDs in biomedical imaging. Hence, in this report, a new one-pot approach to oil-soluble (highly toxic heavy metal-free) highly luminescent quaternary Zn-Ag-In-Se (ZAISe) QDs was designed. Their photoluminescence (PL) emission could be systematically tuned from 660 to 800 nm by controlling the Ag/Zn feed ratio, and their highest PL quantum yield is close to 50% after detailed optimization. Next, by using biodegradable RGD peptide (arginine-glycine-aspartic acid)-modified N-succinyl-N'-octyl-chitosan (RGD-SOC) micelles as a water transfer agent, the versatility of these quaternary ZAISe QDs for multiscale bioimaging of micelles (namely, in vitro and in vivo evaluating the tumor targeting of drug carriers) was further explored, as a promising alternative for Cd- and Pb-based QDs.
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Affiliation(s)
- Dawei Deng
- Department of Biomedical Engineering, School of Life Science and Technology, China Pharmaceutical University , Nanjing 210009, China
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15
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Shao P, Bai M. Photostable, hydrophilic and functional near infrared quaterrylenediimide-cored dendrimers for biomedical imaging. Chem Commun (Camb) 2013; 48:9498-500. [PMID: 22896838 DOI: 10.1039/c2cc34094a] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We describe a new class of near infrared (NIR) fluorescent dendrimeric quaterrylenediimide dyes with high photostability and hydrophilicity, functionality, as well as low cytotoxicity.
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Affiliation(s)
- Pin Shao
- Molecular Imaging Laboratory, Department of Radiology, University of Pittsburgh School of Medicine, Pittsburgh, PA 15219, USA
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16
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Deng D, Qu L, Achilefu S, Gu Y. Broad spectrum photoluminescent quaternary quantum dots for cell and animal imaging. Chem Commun (Camb) 2013; 49:9494-6. [DOI: 10.1039/c3cc45751f] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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17
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Cao J, Wan S, Tian J, Li S, Deng D, Qian Z, Gu Y. Fast clearing RGD-based near-infrared fluorescent probes for in vivo tumor diagnosis. CONTRAST MEDIA & MOLECULAR IMAGING 2012; 7:390-402. [PMID: 22649045 DOI: 10.1002/cmmi.1464] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
A fast clearing hydrophilic near-infrared (NIR) dye ICG-Der-02 was used to constitute tumor targeting contrast agents. Cell adhesion molecule integrin α(v)β(3) served as the target receptor because of its unique expression on almost all sprouting tumor vasculatures. The purpose of this study was to synthesize and compare the properties of integrin α(v)β(3)-targeted, fast clearing NIR probes both in vitro and in vivo for tumor diagnosis. ICG-Der-02 was covalently conjugated to three kinds of RGD peptide including linear, monoeric cyclic and dimeric RGD to form three RGD-based NIR probes. The integrin receptor specificities of these probes were evaluated in vitro by confocal microscopy. The dynamic bio-distribution and elimination ratse were in vivo real-time monitored by a near-infrared imaging system in normal mice. Further, the in vivo tumor targeting abilities of the RGD-based NIR probes were compared in α(v)β(3) -positive MDA-MB-231, U87MG and α(v)β(3)-negtive MCF-7 xenograft mice models. Three RGD-based NIR probes were successfully synthesized with good optical properties. In vitro cellular experiments indicated that the probes have a clear binding affinity to α(υ)β(3) -positive tumor cells, with a cyclic dimeric RGD probe owing the highest integrin affinity. Dynamic bio-distributions of these probes showed a rapid clearing rate through the renal pathway. In vivo tumor targeting ability of the RGD-based porbes was demonstrated on MDA-MB-231 and U87MG tumor models. As expected, the c(RGDyK)(2)-ICG-Der-02 probe displayed the highest tumor-to-normal tissue contrast. The in vitro and in vivo block experiments confirmed the receptor binding specificity of the probes. The hydrophilic dye-labeled NIR probes exhibited a fast clearing rate and deep tissue penetration capability. Further, the α(υ)β(3) receptor affinity of the three RGD-based NIR probes followed the order of dimer cyclic > monomer cyclic > linear. The results demonstrate potent fast clearing probes for in vivo early tumor diagnosis.
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Affiliation(s)
- Jie Cao
- Department of Biomedical Engineering, School of Life Science and Technology, China Pharmaceutical University, Nanjing, China
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18
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Near-infrared fluorescent divalent RGD ligand for integrin αvβ₃-targeted optical imaging. Bioorg Med Chem Lett 2012; 22:5405-9. [PMID: 22871580 DOI: 10.1016/j.bmcl.2012.07.044] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2012] [Revised: 07/10/2012] [Accepted: 07/12/2012] [Indexed: 11/20/2022]
Abstract
A new near-infrared fluorescent compound containing two cyclic RGD motifs, cypate-[c(RGDfK)](2) (1), was synthesized based on a carbocyanine fluorophore bearing two carboxylic acid groups (cypate) for integrin α(v)β(3)-targeting. Compared with its monovalent counterpart cypate-c(RGDfK) (2), 1 exhibited remarkable improvements in integrin α(v)β(3) binding affinity and tumor uptake in nude mice of A549. The results suggest that cypate-linked divalent ligands can serve as an important molecular platform for exploring receptor-targeted optical imaging and treatment of various diseases.
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Abstract
Siderophores are chelators synthesized by bacteria and fungi to sequester iron, which is essential for virulence and pathogenicity. Since the process involves active transport, which is highly regulated, remarkably efficient and often microbially selective, it has been exploited as a Trojan Horse method for development of microbe-selective antibiotics. Siderophores also have significant potential for the development of imaging contrast agents and diagnostics for pathogen-selective detection. These promising results demonstrate the versatility of natural and synthetic microbial iron chelators and their potential therapeutic applications.
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20
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Azhdarinia A, Ghosh P, Ghosh S, Wilganowski N, Sevick-Muraca EM. Dual-labeling strategies for nuclear and fluorescence molecular imaging: a review and analysis. Mol Imaging Biol 2012; 14:261-76. [PMID: 22160875 PMCID: PMC3346941 DOI: 10.1007/s11307-011-0528-9] [Citation(s) in RCA: 91] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Molecular imaging is used for the detection of biochemical processes through the development of target-specific contrast agents. Separately, modalities such as nuclear and near-infrared fluorescence (NIRF) imaging have been shown to non-invasively monitor disease. More recently, merging of these modalities has shown promise owing to their comparable detection sensitivity and benefited from the development of dual-labeled imaging agents. Dual-labeled agents hold promise for whole-body and intraoperative imaging and could bridge the gap between surgical planning and image-guided resection with a single, molecularly targeted agent. In this review, we summarized the literature for dual-labeled antibodies and peptides that have been developed and have highlighted key considerations for incorporating NIRF dyes into nuclear labeling strategies. We also summarized our findings on several commercially available NIRF dyes and offer perspectives for developing a toolkit to select the optimal NIRF dye and radiometal combination for multimodality imaging.
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Affiliation(s)
- Ali Azhdarinia
- Center for Molecular Imaging, The Brown Foundation Institute of Molecular Medicine, The University of Texas Health Science Center, Houston, TX 77030, USA.
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21
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Bernhard C, Moreau M, Lhenry D, Goze C, Boschetti F, Rousselin Y, Brunotte F, Denat F. DOTAGA-anhydride: a valuable building block for the preparation of DOTA-like chelating agents. Chemistry 2012; 18:7834-41. [PMID: 22615050 DOI: 10.1002/chem.201200132] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2012] [Indexed: 11/07/2022]
Abstract
A DOTA derivative that contains an anhydride group was readily synthesized by reacting DOTAGA with acetic anhydride and its reactivity was investigated. Opening the anhydride with propylamine led to the selective formation of one of two possible regioisomers. The structure of the obtained isomer was unambiguously determined by 1D and 2D NMR experiments, including COSY, HMBC, and NOESY techniques. This bifunctional chelating agent offers a convenient and attractive approach for labeling biomolecules and, more generally, for the synthesis of a large range of DOTA derivatives. The scope of the reaction was extended to prepare DOTA-like compounds that contained various functional groups, such as isothiocyanate, thiol, ester, and amino acid moieties. This versatile building block was also used for the synthesis of a bimodal tag for SPECT or PET/optical imaging.
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Affiliation(s)
- Claire Bernhard
- Institut de Chimie Moléculaire de l'Université de Bourgogne, UMR CNRS 6302, 9 avenue Alain Savary, 21000 Dijon, France
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22
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Konisti S, Mantziou S, Markopoulos G, Thrasyvoulou S, Vartholomatos G, Sainis I, Kolettas E, Noutsopoulos D, Tzavaras T. H2O2 signals via iron induction of VL30 retrotransposition correlated with cytotoxicity. Free Radic Biol Med 2012; 52:2072-81. [PMID: 22542446 DOI: 10.1016/j.freeradbiomed.2012.03.021] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/27/2011] [Revised: 02/24/2012] [Accepted: 03/16/2012] [Indexed: 12/31/2022]
Abstract
The impact of oxidative stress on mobilization of endogenous retroviruses and their effects on cell fate is unknown. We investigated the action of H2O2 on retrotransposition of an EGFP-tagged mouse LTR-retrotransposon, VL30, in an NIH3T3 cell-retrotransposition assay. H2O2 treatment of assay cells caused specific retrotranspositions documented by UV microscopy and PCR analysis. Flow cytometric analysis revealed an unusually high dose- and time-dependent retrotransposition frequency induced, ∼420,000-fold at 40 μM H2O2 compared to the natural frequency, which was reduced by ectopic expression of catalase. Remarkably, H2O2 moderately induced the RNA expression of retrotransposon B2 without affecting the basal expression of VL30s and L1 and significantly induced the expression of various endogenous reverse transcriptase genes. Further, whereas treatment with 50 μM FeCl2 alone was ineffective, cotreatment with 10 μM H2O2 and 50 μM FeCl2 caused a 6-fold higher retrotransposition induction than H2O2 alone, which was associated with cytotoxicity. H2O2- or H2O2/FeCl2-induced retrotransposition was significantly reduced by the iron chelator DFO or the antioxidant NAC, respectively. Furthermore, both H2O2-induced retrotransposition and associated cytotoxicity were inhibited after pretreatment of cells with DFO or the reverse transcriptase inhibitors efavirenz and etravirine. Our data show for the first time that H2O2, acting via iron, is a potent stimulus of retrotransposition contributing to oxidative stress-induced cell damage.
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Affiliation(s)
- Sofia Konisti
- Laboratory of General Biology, University of Ioannina, and Hematology Laboratory, Unit of Molecular Biology, University Hospital of Ioannina, 45 110 Ioannina, Greece
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23
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Bunschoten A, Buckle T, Visser NL, Kuil J, Yuan H, Josephson L, Vahrmeijer AL, van Leeuwen FWB. Multimodal interventional molecular imaging of tumor margins and distant metastases by targeting αvβ3 integrin. Chembiochem 2012; 13:1039-45. [PMID: 22505018 DOI: 10.1002/cbic.201200034] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2012] [Indexed: 12/20/2022]
Abstract
α(v)β(3) integrin is involved in (tumor-induced) angiogenesis and is a promising candidate for the specific visualization of both primary tumors and of their distant metastases. Combination of radioactive and fluorescent imaging labels in a single multimodal, or rather hybrid, RGD-based imaging agent enables integration of pre-, intra-, and postoperative angiogenesis imaging. A hybrid imaging agent targeting the α(v)β(3) integrin--(111)In-MSAP-RGD (MSAP = multifunctional single-attachment-point reagent), which contains a targeting moiety, a pentetic acid (DTPA) chelate, and a cyanine dye--was evaluated for its potential value in combined lesion detection and interventional molecular imaging in a 4T1 mouse breast cancer model. SPECT/CT and fluorescence imaging were used to visualize the tumor in vivo. Tracer distribution was evaluated ex vivo down to the microscopic level. The properties of (111)In-MSAP-RGD were compared with those of (111)In-DTPA-RGD. Biodistribution studies revealed a prolonged retention and increased tumor accumulation of (111)In-MSAP-RGD relative to (111)In-DTPA-RGD. With (111)In-MSAP-RGD, identical features could be visualized preoperatively (SPECT/CT) and intraoperatively (fluorescence imaging). As well as the primary tumor, (111)In-MSAP-RGD also enabled detection and accurate excision of distant metastases in the head and neck region of the mice. Therefore, the hybrid RGD derivative (111)In-MSAP-RGD shows potential in preoperative planning and fluorescence-based surgical intervention.
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Affiliation(s)
- Anton Bunschoten
- Interventional Molecular Imaging, Department of Radiology, Leiden University Medical Center, 2300 RC Leiden, The Netherlands
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Zhang X, Bloch S, Akers W, Achilefu S. Near-infrared molecular probes for in vivo imaging. CURRENT PROTOCOLS IN CYTOMETRY 2012; Chapter 12:Unit12.27. [PMID: 22470154 PMCID: PMC3334312 DOI: 10.1002/0471142956.cy1227s60] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Cellular and tissue imaging in the near-infrared (NIR) wavelengths between 700 and 900 nm is advantageous for in vivo imaging because of the low absorption of biological molecules in this region. This unit presents protocols for small animal imaging using planar and fluorescence lifetime imaging techniques. Included is an overview of NIR fluorescence imaging of cells and small animals using NIR organic fluorophores, nanoparticles, and multimodal imaging probes. The development, advantages, and application of NIR fluorescent probes that have been used for in vivo imaging are also summarized. The use of NIR agents in conjunction with visible dyes and considerations in selecting imaging agents are discussed. We conclude with practical considerations for the use of these dyes in cell and small animal imaging applications.
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Affiliation(s)
- Xuan Zhang
- Department of Radiology, Washington University School of Medicine, St. Louis, Missouri
| | - Sharon Bloch
- Department of Radiology, Washington University School of Medicine, St. Louis, Missouri
| | - Walter Akers
- Department of Radiology, Washington University School of Medicine, St. Louis, Missouri
| | - Samuel Achilefu
- Department of Radiology, Washington University School of Medicine, St. Louis, Missouri
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25
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Xue B, Cao J, Deng D, Xia J, Jin J, Qian Z, Gu Y. Four strategies for water transfer of oil-soluble near-infrared-emitting PbS quantum dots. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2012; 23:723-732. [PMID: 22311073 DOI: 10.1007/s10856-012-4548-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2011] [Accepted: 01/09/2012] [Indexed: 05/31/2023]
Abstract
The successful transfer of oil-soluble quantum dots (QDs) into water is critical for many of their bioapplications. In this paper, the impacts of four various strategies (i.e., via micelles, nanohydrogels, amphiphilic polymers and water-soluble thiol small molecules) on the phase transfer of oil-soluble oleic acid-capped NIR-emitting PbS QDs into water were evaluated systematically. It was found that the process of water transfer and the optical property of the resulting water-soluble QDs highly hinge on the type of the phase transfer agents used due to their different interactions with QD surface. Among all these phase transfer agents, SOC micelles and glutathione (thiol) molecules are more favorable for retaining the optical property of the initial oil-soluble PbS QDs. As a result, the obtained water-soluble QDs show strong NIR fluorescence (PL QY > 30% in water). However, in the case of nanohydrogel and amphiphilic polymers, the corresponding water-soluble ones display relatively weak fluorescence emission. These results suggest fully that "correct" phase transfer agents should be selected in order to obtain high-quality water-soluble PbS QDs. The possible reasons for this obvious difference were further analyzed and revealed. Besides, the preliminary results obtained also indicate that the NIR-emitting PbS QDs will be a potential probe in the in vivo biomedical imaging of small animals.
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Affiliation(s)
- Bing Xue
- Department of Biomedical Engineering, School of Life Science and Technology, China Pharmaceutical University, Nanjing, China
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26
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Hodenius M, Würth C, Jayapaul J, Wong JE, Lammers T, Gätjens J, Arns S, Mertens N, Slabu I, Ivanova G, Bornemann J, Cuyper MD, Resch-Genger U, Kiessling F. Fluorescent magnetoliposomes as a platform technology for functional and molecular MR and optical imaging. CONTRAST MEDIA & MOLECULAR IMAGING 2012; 7:59-67. [DOI: 10.1002/cmmi.467] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
| | - Christian Würth
- Federal Institute for Materials Research and Testing; Berlin; Germany
| | - Jabadurai Jayapaul
- Department of Experimental Molecular Imaging; RWTH Aachen University; Aachen; Germany
| | - John E. Wong
- Chemical Process Engineering; RWTH Aachen University; Aachen; Germany
| | - Twan Lammers
- Department of Experimental Molecular Imaging; RWTH Aachen University; Aachen; Germany
| | - Jessica Gätjens
- Department of Experimental Molecular Imaging; RWTH Aachen University; Aachen; Germany
| | - Susanne Arns
- Department of Experimental Molecular Imaging; RWTH Aachen University; Aachen; Germany
| | - Natascha Mertens
- Department of Experimental Molecular Imaging; RWTH Aachen University; Aachen; Germany
| | - Ioana Slabu
- Applied Medical Engineering; Helmholtz-Institute, RWTH Aachen University; Germany
| | - Gergana Ivanova
- Applied Medical Engineering; Helmholtz-Institute, RWTH Aachen University; Germany
| | - Jörg Bornemann
- Elektronenmikroskopische Einrichtung; RWTH Aachen University; Aachen; Germany
| | - Marcel De Cuyper
- Interdisciplinary Research Centre; K.U.Leuven-Campus Kortrijk; Kortrijk; Belgium
| | | | - Fabian Kiessling
- Department of Experimental Molecular Imaging; RWTH Aachen University; Aachen; Germany
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27
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Deng D, Xia J, Cao J, Qu L, Tian J, Qian Z, Gu Y, Gu Z. Forming highly fluorescent near-infrared emitting PbS quantum dots in water using glutathione as surface-modifying molecule. J Colloid Interface Sci 2012; 367:234-40. [DOI: 10.1016/j.jcis.2011.09.043] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2011] [Revised: 09/07/2011] [Accepted: 09/18/2011] [Indexed: 11/15/2022]
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28
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Zheng T, Nolan EM. Siderophore-based detection of Fe(iii) and microbial pathogens. Metallomics 2012; 4:866-80. [DOI: 10.1039/c2mt20082a] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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29
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Choi HS, Nasr K, Alyabyev S, Feith D, Lee JH, Kim SH, Ashitate Y, Hyun H, Patonay G, Strekowski L, Henary M, Frangioni JV. Synthesis and in vivo fate of zwitterionic near-infrared fluorophores. Angew Chem Int Ed Engl 2011; 50:6258-63. [PMID: 21656624 PMCID: PMC3128676 DOI: 10.1002/anie.201102459] [Citation(s) in RCA: 252] [Impact Index Per Article: 19.4] [Reference Citation Analysis] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2011] [Indexed: 11/11/2022]
Affiliation(s)
- Hak Soo Choi
- H.S. Choi, Ph.D., K. Nasr, Ph.D., D. Feith, M.S., J.H. Lee, B.S., S.H. Kim, Ph.D., Y. Ashitate, M.D., H. Hyun, Ph.D., J.V. Frangioni, M.D., Ph.D. Division of Hematology/Oncology, Department of Medicine and Department of Radiology, Beth Israel Deaconess Medical Center, 330 Brookline Avenue, SLB-05, Boston, MA, 02215, USA. S. Alyabyev, Ph.D., G. Patonay, Ph.D., L. Strekowski, Ph.D., M. Henary, Ph.D., Department of Chemistry, Georgia State University, Atlanta, GA 30303, USA. S.H. Kim, Ph.D., WCU Department of BIN Fusion Technology, Chonbuk National University, Jeonju 561-756, South Korea
| | - Khaled Nasr
- H.S. Choi, Ph.D., K. Nasr, Ph.D., D. Feith, M.S., J.H. Lee, B.S., S.H. Kim, Ph.D., Y. Ashitate, M.D., H. Hyun, Ph.D., J.V. Frangioni, M.D., Ph.D. Division of Hematology/Oncology, Department of Medicine and Department of Radiology, Beth Israel Deaconess Medical Center, 330 Brookline Avenue, SLB-05, Boston, MA, 02215, USA. S. Alyabyev, Ph.D., G. Patonay, Ph.D., L. Strekowski, Ph.D., M. Henary, Ph.D., Department of Chemistry, Georgia State University, Atlanta, GA 30303, USA. S.H. Kim, Ph.D., WCU Department of BIN Fusion Technology, Chonbuk National University, Jeonju 561-756, South Korea
| | - Sergey Alyabyev
- H.S. Choi, Ph.D., K. Nasr, Ph.D., D. Feith, M.S., J.H. Lee, B.S., S.H. Kim, Ph.D., Y. Ashitate, M.D., H. Hyun, Ph.D., J.V. Frangioni, M.D., Ph.D. Division of Hematology/Oncology, Department of Medicine and Department of Radiology, Beth Israel Deaconess Medical Center, 330 Brookline Avenue, SLB-05, Boston, MA, 02215, USA. S. Alyabyev, Ph.D., G. Patonay, Ph.D., L. Strekowski, Ph.D., M. Henary, Ph.D., Department of Chemistry, Georgia State University, Atlanta, GA 30303, USA. S.H. Kim, Ph.D., WCU Department of BIN Fusion Technology, Chonbuk National University, Jeonju 561-756, South Korea
| | - Dina Feith
- H.S. Choi, Ph.D., K. Nasr, Ph.D., D. Feith, M.S., J.H. Lee, B.S., S.H. Kim, Ph.D., Y. Ashitate, M.D., H. Hyun, Ph.D., J.V. Frangioni, M.D., Ph.D. Division of Hematology/Oncology, Department of Medicine and Department of Radiology, Beth Israel Deaconess Medical Center, 330 Brookline Avenue, SLB-05, Boston, MA, 02215, USA. S. Alyabyev, Ph.D., G. Patonay, Ph.D., L. Strekowski, Ph.D., M. Henary, Ph.D., Department of Chemistry, Georgia State University, Atlanta, GA 30303, USA. S.H. Kim, Ph.D., WCU Department of BIN Fusion Technology, Chonbuk National University, Jeonju 561-756, South Korea
| | - Jeong Heon Lee
- H.S. Choi, Ph.D., K. Nasr, Ph.D., D. Feith, M.S., J.H. Lee, B.S., S.H. Kim, Ph.D., Y. Ashitate, M.D., H. Hyun, Ph.D., J.V. Frangioni, M.D., Ph.D. Division of Hematology/Oncology, Department of Medicine and Department of Radiology, Beth Israel Deaconess Medical Center, 330 Brookline Avenue, SLB-05, Boston, MA, 02215, USA. S. Alyabyev, Ph.D., G. Patonay, Ph.D., L. Strekowski, Ph.D., M. Henary, Ph.D., Department of Chemistry, Georgia State University, Atlanta, GA 30303, USA. S.H. Kim, Ph.D., WCU Department of BIN Fusion Technology, Chonbuk National University, Jeonju 561-756, South Korea
| | - Soon Hee Kim
- H.S. Choi, Ph.D., K. Nasr, Ph.D., D. Feith, M.S., J.H. Lee, B.S., S.H. Kim, Ph.D., Y. Ashitate, M.D., H. Hyun, Ph.D., J.V. Frangioni, M.D., Ph.D. Division of Hematology/Oncology, Department of Medicine and Department of Radiology, Beth Israel Deaconess Medical Center, 330 Brookline Avenue, SLB-05, Boston, MA, 02215, USA. S. Alyabyev, Ph.D., G. Patonay, Ph.D., L. Strekowski, Ph.D., M. Henary, Ph.D., Department of Chemistry, Georgia State University, Atlanta, GA 30303, USA. S.H. Kim, Ph.D., WCU Department of BIN Fusion Technology, Chonbuk National University, Jeonju 561-756, South Korea
| | - Yoshitomo Ashitate
- H.S. Choi, Ph.D., K. Nasr, Ph.D., D. Feith, M.S., J.H. Lee, B.S., S.H. Kim, Ph.D., Y. Ashitate, M.D., H. Hyun, Ph.D., J.V. Frangioni, M.D., Ph.D. Division of Hematology/Oncology, Department of Medicine and Department of Radiology, Beth Israel Deaconess Medical Center, 330 Brookline Avenue, SLB-05, Boston, MA, 02215, USA. S. Alyabyev, Ph.D., G. Patonay, Ph.D., L. Strekowski, Ph.D., M. Henary, Ph.D., Department of Chemistry, Georgia State University, Atlanta, GA 30303, USA. S.H. Kim, Ph.D., WCU Department of BIN Fusion Technology, Chonbuk National University, Jeonju 561-756, South Korea
| | - Hoon Hyun
- H.S. Choi, Ph.D., K. Nasr, Ph.D., D. Feith, M.S., J.H. Lee, B.S., S.H. Kim, Ph.D., Y. Ashitate, M.D., H. Hyun, Ph.D., J.V. Frangioni, M.D., Ph.D. Division of Hematology/Oncology, Department of Medicine and Department of Radiology, Beth Israel Deaconess Medical Center, 330 Brookline Avenue, SLB-05, Boston, MA, 02215, USA. S. Alyabyev, Ph.D., G. Patonay, Ph.D., L. Strekowski, Ph.D., M. Henary, Ph.D., Department of Chemistry, Georgia State University, Atlanta, GA 30303, USA. S.H. Kim, Ph.D., WCU Department of BIN Fusion Technology, Chonbuk National University, Jeonju 561-756, South Korea
| | - Gabor Patonay
- H.S. Choi, Ph.D., K. Nasr, Ph.D., D. Feith, M.S., J.H. Lee, B.S., S.H. Kim, Ph.D., Y. Ashitate, M.D., H. Hyun, Ph.D., J.V. Frangioni, M.D., Ph.D. Division of Hematology/Oncology, Department of Medicine and Department of Radiology, Beth Israel Deaconess Medical Center, 330 Brookline Avenue, SLB-05, Boston, MA, 02215, USA. S. Alyabyev, Ph.D., G. Patonay, Ph.D., L. Strekowski, Ph.D., M. Henary, Ph.D., Department of Chemistry, Georgia State University, Atlanta, GA 30303, USA. S.H. Kim, Ph.D., WCU Department of BIN Fusion Technology, Chonbuk National University, Jeonju 561-756, South Korea
| | - Lucjan Strekowski
- H.S. Choi, Ph.D., K. Nasr, Ph.D., D. Feith, M.S., J.H. Lee, B.S., S.H. Kim, Ph.D., Y. Ashitate, M.D., H. Hyun, Ph.D., J.V. Frangioni, M.D., Ph.D. Division of Hematology/Oncology, Department of Medicine and Department of Radiology, Beth Israel Deaconess Medical Center, 330 Brookline Avenue, SLB-05, Boston, MA, 02215, USA. S. Alyabyev, Ph.D., G. Patonay, Ph.D., L. Strekowski, Ph.D., M. Henary, Ph.D., Department of Chemistry, Georgia State University, Atlanta, GA 30303, USA. S.H. Kim, Ph.D., WCU Department of BIN Fusion Technology, Chonbuk National University, Jeonju 561-756, South Korea
| | - Maged Henary
- H.S. Choi, Ph.D., K. Nasr, Ph.D., D. Feith, M.S., J.H. Lee, B.S., S.H. Kim, Ph.D., Y. Ashitate, M.D., H. Hyun, Ph.D., J.V. Frangioni, M.D., Ph.D. Division of Hematology/Oncology, Department of Medicine and Department of Radiology, Beth Israel Deaconess Medical Center, 330 Brookline Avenue, SLB-05, Boston, MA, 02215, USA. S. Alyabyev, Ph.D., G. Patonay, Ph.D., L. Strekowski, Ph.D., M. Henary, Ph.D., Department of Chemistry, Georgia State University, Atlanta, GA 30303, USA. S.H. Kim, Ph.D., WCU Department of BIN Fusion Technology, Chonbuk National University, Jeonju 561-756, South Korea
| | - John V. Frangioni
- H.S. Choi, Ph.D., K. Nasr, Ph.D., D. Feith, M.S., J.H. Lee, B.S., S.H. Kim, Ph.D., Y. Ashitate, M.D., H. Hyun, Ph.D., J.V. Frangioni, M.D., Ph.D. Division of Hematology/Oncology, Department of Medicine and Department of Radiology, Beth Israel Deaconess Medical Center, 330 Brookline Avenue, SLB-05, Boston, MA, 02215, USA. S. Alyabyev, Ph.D., G. Patonay, Ph.D., L. Strekowski, Ph.D., M. Henary, Ph.D., Department of Chemistry, Georgia State University, Atlanta, GA 30303, USA. S.H. Kim, Ph.D., WCU Department of BIN Fusion Technology, Chonbuk National University, Jeonju 561-756, South Korea
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Choi HS, Nasr K, Alyabyev S, Feith D, Lee JH, Kim SH, Ashitate Y, Hyun H, Patonay G, Strekowski L, Henary M, Frangioni JV. Synthesis and In Vivo Fate of Zwitterionic Near-Infrared Fluorophores. Angew Chem Int Ed Engl 2011. [DOI: 10.1002/ange.201102459] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Deng D, Cao J, Xia J, Qian Z, Gu Y, Gu Z, Akers WJ. Two-Phase Approach to High-Quality, Oil-Soluble, Near-Infrared-Emitting PbS Quantum Dots by Using Various Water-Soluble Anion Precursors. Eur J Inorg Chem 2011. [DOI: 10.1002/ejic.201100012] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Lee H, Akers W, Bhushan K, Bloch S, Sudlow G, Tang R, Achilefu S. Near-infrared pH-activatable fluorescent probes for imaging primary and metastatic breast tumors. Bioconjug Chem 2011; 22:777-84. [PMID: 21388195 DOI: 10.1021/bc100584d] [Citation(s) in RCA: 166] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Highly tumor selective near-infrared (NIR) pH-activatable probe was developed by conjugating pH-sensitive cyanine dye to a cyclic arginine-glycine-aspartic acid (cRGD) peptide targeting α(v)β(3) integrin (ABIR), a protein that is highly overexpressed in endothelial cells during tumor angiogenesis. The NIR pH-sensitive dye used to construct the probe exhibits high spectral sensitivity with pH changes. It has negligible fluorescence above pH 6 but becomes highly fluorescent below pH 5, with a pK(a) of 4.7. This probe is ideal for imaging acidic cell organelles such as tumor lysosomes or late endosomes. Cell microscopy data demonstrate that binding of the cRGD probe to ABIR facilitated the endocytosis-mediated lysosomal accumulation and subsequent fluorescence enhancement of the NIR pH-activatable dye in tumor cells (MDA-MB-435 and 4T1/luc). A similar fluorescence enhancement mechanism was observed in vivo, where the tumors were evident within 4 h post injection. Moreover, lung metastases were also visualized in an orthotopic tumor mouse model using this probe, which was further confirmed by histologic analysis. These results demonstrate the potential of using the new integrin-targeted pH-sensitive probe for the detection of primary and metastatic cancer.
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Affiliation(s)
- Hyeran Lee
- Department of Radiology, Washington University , St. Louis, Missouri 63110, United States
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Kimura S, Masunaga SI, Harada T, Kawamura Y, Ueda S, Okuda K, Nagasawa H. Synthesis and evaluation of cyclic RGD-boron cluster conjugates to develop tumor-selective boron carriers for boron neutron capture therapy. Bioorg Med Chem 2011; 19:1721-8. [DOI: 10.1016/j.bmc.2011.01.020] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2010] [Revised: 01/11/2011] [Accepted: 01/12/2011] [Indexed: 10/18/2022]
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Ye Y, Xu B, Nikiforovich GV, Bloch S, Achilefu S. Exploring new near-infrared fluorescent disulfide-based cyclic RGD peptide analogs for potential integrin-targeted optical imaging. Bioorg Med Chem Lett 2011; 21:2116-20. [PMID: 21349709 DOI: 10.1016/j.bmcl.2011.01.133] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2010] [Revised: 01/26/2011] [Accepted: 01/28/2011] [Indexed: 10/18/2022]
Abstract
We synthesized disulfide-based cyclic RGD pentapeptides bearing a near-infrared fluorescent dye (cypate), represented by cypate-c(CRGDC) (1) for integrin-targeted optical imaging. These compounds were compared with the traditional lactam-based cyclic RGD counterpart, cypate-c(RGDfK) (2). Molecular modeling suggests that the binding affinity of 2 to integrin α(v)β(3) is an order of magnitude higher than that of 1. This was confirmed experimentally, which further showed that substitution of Gly with Pro, Val and Tyr in 1 remarkably hampered the α(v)β(3) binding. Interestingly, cell microscopy with A549 cells showed that 1 exhibited higher cellular staining than 2. These results indicate that factors other than receptor binding affinity to α(v)β(3) dimeric proteins mediate cellular uptake. Consequently, 1 and its analogs may serve as valuable molecular probes for investigating the selectivity and specificity of integrin targeting by optical imaging.
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Affiliation(s)
- Yunpeng Ye
- Department of Radiology, Washington University School of Medicine, 4525 Scott Avenue, St Louis, MO 63110, USA
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35
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Kuil J, Velders AH, van Leeuwen FWB. Multimodal tumor-targeting peptides functionalized with both a radio- and a fluorescent label. Bioconjug Chem 2011; 21:1709-19. [PMID: 20812730 DOI: 10.1021/bc100276j] [Citation(s) in RCA: 92] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
The use of monolabeled tumor-targeting peptides for molecular imaging is widespread. However, it is often desirable to use the same compound for different clinical applications, e.g., combined pre- and intraoperative tumor detection. On the basis of their detection sensitivity, the combination of radioactivity and fluorescence is probably the most valuable in multimodal molecular imaging. In this review, we compare multimodal peptide derivatives and discuss the influence of the diagnostic labels on receptor affinity and biodistribution. On the basis of the described constructs, we propose improvements for the design of future multimodal tumor-targeting peptide derivatives.
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Affiliation(s)
- Joeri Kuil
- Division of Diagnostic Oncology, The Netherlands Cancer Institute, Antoni van Leeuwenhoek Hospital, Amsterdam, The Netherlands
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36
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Liu Y, Solomon M, Achilefu S. Perspectives and potential applications of nanomedicine in breast and prostate cancer. Med Res Rev 2010; 33:3-32. [PMID: 23239045 DOI: 10.1002/med.20233] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Nanomedicine is a branch of nanotechnology that includes the development of nanostructures and nanoanalytical systems for various medical applications. Among these applications, utilization of nanotechnology in oncology has captivated the attention of many research endeavors in recent years. The rapid development of nano-oncology raises new possibilities in cancer diagnosis and treatment. It also holds great promise for realization of point-of-care, theranostics, and personalized medicine. In this article, we review advances in nano-oncology, with an emphasis on breast and prostate cancer because these organs are amenable to the translation of nanomedicine from small animals to humans. As new drugs are developed, the incorporation of nanotechnology approaches into medicinal research becomes critical. Diverse aspects of nano-oncology are discussed, including nanocarriers, targeting strategies, nanodevices, as well as nanomedical diagnostics, therapeutics, and safety. The review concludes by identifying some limitations and future perspectives of nano-oncology in breast and prostate cancer management.
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Affiliation(s)
- Yang Liu
- Department of Radiology, Washington University School of Medicine, St. Louis, Missouri, USA
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37
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Powe AM, Das S, Lowry M, El-Zahab B, Fakayode SO, Geng ML, Baker GA, Wang L, McCarroll ME, Patonay G, Li M, Aljarrah M, Neal S, Warner IM. Molecular Fluorescence, Phosphorescence, and Chemiluminescence Spectrometry. Anal Chem 2010; 82:4865-94. [DOI: 10.1021/ac101131p] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Aleeta M. Powe
- Department of Chemistry, University of Louisville, Louisville, Kentucky 40208, Department of Chemistry, Louisiana State University, Baton Rouge, Louisiana 70803, Department of Chemistry, Winston-Salem State University, Winston-Salem, North Carolina 27110, Department of Chemistry, Nanoscience and Nanotechnology Institute and the Optical Science and Technology Center, University of Iowa, Iowa City, Iowa 52242, Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, Department
| | - Susmita Das
- Department of Chemistry, University of Louisville, Louisville, Kentucky 40208, Department of Chemistry, Louisiana State University, Baton Rouge, Louisiana 70803, Department of Chemistry, Winston-Salem State University, Winston-Salem, North Carolina 27110, Department of Chemistry, Nanoscience and Nanotechnology Institute and the Optical Science and Technology Center, University of Iowa, Iowa City, Iowa 52242, Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, Department
| | - Mark Lowry
- Department of Chemistry, University of Louisville, Louisville, Kentucky 40208, Department of Chemistry, Louisiana State University, Baton Rouge, Louisiana 70803, Department of Chemistry, Winston-Salem State University, Winston-Salem, North Carolina 27110, Department of Chemistry, Nanoscience and Nanotechnology Institute and the Optical Science and Technology Center, University of Iowa, Iowa City, Iowa 52242, Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, Department
| | - Bilal El-Zahab
- Department of Chemistry, University of Louisville, Louisville, Kentucky 40208, Department of Chemistry, Louisiana State University, Baton Rouge, Louisiana 70803, Department of Chemistry, Winston-Salem State University, Winston-Salem, North Carolina 27110, Department of Chemistry, Nanoscience and Nanotechnology Institute and the Optical Science and Technology Center, University of Iowa, Iowa City, Iowa 52242, Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, Department
| | - Sayo O. Fakayode
- Department of Chemistry, University of Louisville, Louisville, Kentucky 40208, Department of Chemistry, Louisiana State University, Baton Rouge, Louisiana 70803, Department of Chemistry, Winston-Salem State University, Winston-Salem, North Carolina 27110, Department of Chemistry, Nanoscience and Nanotechnology Institute and the Optical Science and Technology Center, University of Iowa, Iowa City, Iowa 52242, Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, Department
| | - Maxwell L. Geng
- Department of Chemistry, University of Louisville, Louisville, Kentucky 40208, Department of Chemistry, Louisiana State University, Baton Rouge, Louisiana 70803, Department of Chemistry, Winston-Salem State University, Winston-Salem, North Carolina 27110, Department of Chemistry, Nanoscience and Nanotechnology Institute and the Optical Science and Technology Center, University of Iowa, Iowa City, Iowa 52242, Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, Department
| | - Gary A. Baker
- Department of Chemistry, University of Louisville, Louisville, Kentucky 40208, Department of Chemistry, Louisiana State University, Baton Rouge, Louisiana 70803, Department of Chemistry, Winston-Salem State University, Winston-Salem, North Carolina 27110, Department of Chemistry, Nanoscience and Nanotechnology Institute and the Optical Science and Technology Center, University of Iowa, Iowa City, Iowa 52242, Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, Department
| | - Lin Wang
- Department of Chemistry, University of Louisville, Louisville, Kentucky 40208, Department of Chemistry, Louisiana State University, Baton Rouge, Louisiana 70803, Department of Chemistry, Winston-Salem State University, Winston-Salem, North Carolina 27110, Department of Chemistry, Nanoscience and Nanotechnology Institute and the Optical Science and Technology Center, University of Iowa, Iowa City, Iowa 52242, Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, Department
| | - Matthew E. McCarroll
- Department of Chemistry, University of Louisville, Louisville, Kentucky 40208, Department of Chemistry, Louisiana State University, Baton Rouge, Louisiana 70803, Department of Chemistry, Winston-Salem State University, Winston-Salem, North Carolina 27110, Department of Chemistry, Nanoscience and Nanotechnology Institute and the Optical Science and Technology Center, University of Iowa, Iowa City, Iowa 52242, Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, Department
| | - Gabor Patonay
- Department of Chemistry, University of Louisville, Louisville, Kentucky 40208, Department of Chemistry, Louisiana State University, Baton Rouge, Louisiana 70803, Department of Chemistry, Winston-Salem State University, Winston-Salem, North Carolina 27110, Department of Chemistry, Nanoscience and Nanotechnology Institute and the Optical Science and Technology Center, University of Iowa, Iowa City, Iowa 52242, Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, Department
| | - Min Li
- Department of Chemistry, University of Louisville, Louisville, Kentucky 40208, Department of Chemistry, Louisiana State University, Baton Rouge, Louisiana 70803, Department of Chemistry, Winston-Salem State University, Winston-Salem, North Carolina 27110, Department of Chemistry, Nanoscience and Nanotechnology Institute and the Optical Science and Technology Center, University of Iowa, Iowa City, Iowa 52242, Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, Department
| | - Mohannad Aljarrah
- Department of Chemistry, University of Louisville, Louisville, Kentucky 40208, Department of Chemistry, Louisiana State University, Baton Rouge, Louisiana 70803, Department of Chemistry, Winston-Salem State University, Winston-Salem, North Carolina 27110, Department of Chemistry, Nanoscience and Nanotechnology Institute and the Optical Science and Technology Center, University of Iowa, Iowa City, Iowa 52242, Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, Department
| | - Sharon Neal
- Department of Chemistry, University of Louisville, Louisville, Kentucky 40208, Department of Chemistry, Louisiana State University, Baton Rouge, Louisiana 70803, Department of Chemistry, Winston-Salem State University, Winston-Salem, North Carolina 27110, Department of Chemistry, Nanoscience and Nanotechnology Institute and the Optical Science and Technology Center, University of Iowa, Iowa City, Iowa 52242, Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, Department
| | - Isiah M. Warner
- Department of Chemistry, University of Louisville, Louisville, Kentucky 40208, Department of Chemistry, Louisiana State University, Baton Rouge, Louisiana 70803, Department of Chemistry, Winston-Salem State University, Winston-Salem, North Carolina 27110, Department of Chemistry, Nanoscience and Nanotechnology Institute and the Optical Science and Technology Center, University of Iowa, Iowa City, Iowa 52242, Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, Department
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Lim J, Venditto VJ, Simanek EE. Synthesis and characterization of a triazine dendrimer that sequesters iron(III) using 12 desferrioxamine B groups. Bioorg Med Chem 2010; 18:5749-53. [PMID: 20615715 DOI: 10.1016/j.bmc.2010.05.039] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2010] [Revised: 05/12/2010] [Accepted: 05/14/2010] [Indexed: 01/19/2023]
Abstract
The synthesis of a third generation triazine dendrimer, 1, containing multiple, iron-sequestering desferrioxamine B (DFO) groups is described. Benzoylation of the hydroxamic acid groups of DFO and formation of a reactive dichlorotriazine provide the intermediate for reaction with the second generation dendrimer displaying twelve amines. This strategy further generalizes the 'functional monomer' approach to generate biologically active triazine dendrimers. Dendrimer 1 is prepared in seven steps in 35% overall yield and displays 12 DFO groups making it 56% drug by weight. Spectrophotometric titrations (UV-vis) show that 1 sequesters iron(III) atoms with neither cooperativity nor significant interference from the dendrimer backbone. Evidence from NMR spectroscopy and mass spectrometry reveals a limitation to this functional monomer approach: trace amounts of O-to-N acyl migration from the protected hydroxamic acids to the amine-terminated dendrimer occurs during the coupling step leading to N-benzoylated dendrimers displaying fewer than 12 DFO groups.
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Affiliation(s)
- Jongdoo Lim
- Department of Chemistry, Texas A&M University, College Station, TX 77843, United States
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39
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Bai M, Achilefu S. Synthesis of functional near infrared pyrrolopyrrole cyanine dyes for optical and photoacoustic imaging. HETEROCYCL COMMUN 2010. [DOI: 10.1515/hc.2010.006] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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40
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Perez LR, Franz KJ. Minding metals: tailoring multifunctional chelating agents for neurodegenerative disease. Dalton Trans 2009; 39:2177-87. [PMID: 20162187 DOI: 10.1039/b919237a] [Citation(s) in RCA: 124] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Neurodegenerative diseases like Alzheimer's and Parkinson's disease are associated with elevated levels of iron, copper, and zinc and consequentially high levels of oxidative stress. Given the multifactorial nature of these diseases, it is becoming evident that the next generation of therapies must have multiple functions to combat multiple mechanisms of disease progression. Metal-chelating agents provide one such function as an intervention for ameliorating metal-associated damage in degenerative diseases. Targeting chelators to adjust localized metal imbalances in the brain, however, presents significant challenges. In this perspective, we focus on some noteworthy advances in the area of multifunctional metal chelators as potential therapeutic agents for neurodegenerative diseases. In addition to metal chelating ability, these agents also contain features designed to improve their uptake across the blood-brain barrier, increase their selectivity for metals in damage-prone environments, increase antioxidant capabilities, lower Abeta peptide aggregation, or inhibit disease-associated enzymes such as monoamine oxidase and acetylcholinesterase.
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Affiliation(s)
- Lissette R Perez
- Department of Chemistry, Duke University, Durham, NC 27708-0346, USA
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