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Macicior J, Fernández D, Ortega-Gutiérrez S. A new fluorescent probe for the visualization of progerin. Bioorg Chem 2024; 142:106967. [PMID: 37979321 DOI: 10.1016/j.bioorg.2023.106967] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2023] [Revised: 11/09/2023] [Accepted: 11/10/2023] [Indexed: 11/20/2023]
Abstract
Hutchinson-Gilford progeria syndrome (HGPS) or progeria is a rare genetic disease that causes premature aging, leading to a drastic reduction in the life expectancy of patients. Progeria is mainly caused by the intracellular accumulation of a defective protein called progerin, generated from a mutation in the LMNA gene. Currently, there is only one approved drug for the treatment of progeria, which has limited efficacy. It is believed that progerin levels are the most important biomarker related to the severity of the disease. However, there is a lack of effective tools to directly visualize progerin in the native cellular models, since the commercially available antibodies are not well suited for the direct visualization of progerin in cells from the mouse model of the disease. In this context, an alternative option for the visualization of a protein relies on the use of fluorescent chemical probes, molecules with affinity and specificity towards a protein. In this work we report the synthesis and characterization of a new fluorescent probe (UCM-23079) that allows for the direct visualization of progerin in cells from the most widely used progeroid mouse model. Thus, UCM-23079 is a new tool compound that could help prioritize potential preclinical therapies towards the final goal of finding a definitive cure for progeria.
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Affiliation(s)
- Jon Macicior
- Departamento de Química Orgánica, Facultad de Ciencias Químicas, Plaza de las Ciencias s/n, Universidad Complutense de Madrid, E-28040 Madrid, Spain
| | - Daniel Fernández
- Departamento de Química Orgánica, Facultad de Ciencias Químicas, Plaza de las Ciencias s/n, Universidad Complutense de Madrid, E-28040 Madrid, Spain
| | - Silvia Ortega-Gutiérrez
- Departamento de Química Orgánica, Facultad de Ciencias Químicas, Plaza de las Ciencias s/n, Universidad Complutense de Madrid, E-28040 Madrid, Spain.
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2
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Xu Y, Nie Z, Ni N, Zhang X, Yuan J, Gao Y, Gong Y, Liu S, Wu M, Sun X. Shield-activated two-way imaging nanomaterials for enhanced cancer theranostics. Biomater Sci 2022; 10:6893-6910. [PMID: 36317535 DOI: 10.1039/d2bm01317g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Smart nanomaterials with stimuli-responsive imaging enhancement have been widely developed to meet the requirements of accurate cancer diagnosis. However, these imaging nanoenhancers tend to be always on during circulation, which significantly increases the background signal when assessing the imaging performance. To improve unfavorable signal-to-noise ratios, an effective way is to shield the noise signal of these nanoprobes in non-targeted areas. Fortunately, there is a natural mutual shielding effect between some imaging nanomaterials, which provides the possibility of designing engineered nanomaterials with imaging quenching between two different components at the beginning. Once in the tumor microenvironment, the two components will present activated dual-mode imaging ability because of their separation, designated as two-way imaging tuning. This review highlights the design and mechanism of a series of engineered nanomaterials with two-way imaging tuning and their latest applications in the fields of cancer magnetic resonance imaging, fluorescence imaging, and their combination. The challenges and future directions for the improvement of these engineered nanomaterials towards clinical transformation are also discussed. This review aims to introduce the special constraint relationships of imaging components and provide scientists with simpler and more efficient nanoplatform construction ideas, promoting the development of engineered nanomaterials with two-way imaging tuning in cancer theranostics.
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Affiliation(s)
- Yang Xu
- School of Chemistry and Pharmaceutical Engineering, Medical Science and Technology Innovation Center, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan 250000, China.
| | - Zhaokun Nie
- School of Chemistry and Pharmaceutical Engineering, Medical Science and Technology Innovation Center, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan 250000, China.
| | - Nengyi Ni
- Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore 117585, Singapore
| | - Xinyu Zhang
- School of Chemistry and Pharmaceutical Engineering, Medical Science and Technology Innovation Center, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan 250000, China.
| | - Jia Yuan
- School of Chemistry and Pharmaceutical Engineering, Medical Science and Technology Innovation Center, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan 250000, China.
| | - Yuan Gao
- School of Chemistry and Pharmaceutical Engineering, Medical Science and Technology Innovation Center, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan 250000, China.
| | - Yufang Gong
- School of Chemistry and Pharmaceutical Engineering, Medical Science and Technology Innovation Center, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan 250000, China.
| | - Shuangqing Liu
- School of Chemistry and Pharmaceutical Engineering, Medical Science and Technology Innovation Center, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan 250000, China.
| | - Min Wu
- Functional and Molecular Imaging Key Laboratory of Sichuan Province, West China Hospital, Sichuan University, Chengdu, China.
| | - Xiao Sun
- School of Chemistry and Pharmaceutical Engineering, Medical Science and Technology Innovation Center, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan 250000, China.
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3
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Garvey RW, Lacivita E, Niso M, Duszyńska B, Harris PE, Leopoldo M. Design, synthesis, and characterization of a novel fluoroprobe for live human islet cell imaging of serotonin 5-HT1A receptor. ChemMedChem 2022; 17:e202100759. [PMID: 35286016 DOI: 10.1002/cmdc.202100759] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Revised: 03/08/2022] [Indexed: 11/09/2022]
Abstract
Mounting evidence suggests that the serotonin system serves in signal transmission to regulate insulin secretion in pancreatic islets of Langerhans. Among the 5-HT receptor subtype found in pancreatic islets, serotonin receptor 1A (5-HT 1A ) demonstrates a unique ability to inhibit beta-cell insulin secretion. We report on the design, synthesis, and characterization of two novel fluorescent probes for the 5-HT 1A receptor. The compounds were prepared by conjugating the scaffold of the 5-HT 1A receptor agonist 8-OH-DPAT with two fluorophores suitable for live-cells imaging. Compound 5a showed a high affinity for the 5-HT 1A receptor ( K i = 1.8 nM). Fluoroprobe 5a was able to label the 5-HT 1A receptor in pancreatic islet cell cultures in a selective manner, as the fluorescence emission was significantly attenuated by co-administration of the 5-HT 1A receptor antagonist WAY-100635. Thus, fluoroprobe 5a showed useful properties to further characterize this unique receptor's role.
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Affiliation(s)
- Robert W Garvey
- Columbia University, Division of Endocrinology, Department of Medicine, UNITED STATES
| | - Enza Lacivita
- Universita' degli Studi di Bari, Dipartimento di Farmacia-Scienze del Farmaco, Via Orabona, 4, 70125, Bari, ITALY
| | - Mauro Niso
- Università degli Studi di Bari Aldo Moro: Universita degli Studi di Bari Aldo Moro, Dipartimento di Farmacia -Scienze del Farmaco, Via Orabona, 4, 70125, Bari, ITALY
| | - Beata Duszyńska
- Institute of Pharmacology of the Polish Academy of Sciences: Instytut Farmakologii im Jerzego Maja Polskiej Akademii Nauk, Department of Medicinal Chemistry, Smetna, 12, 31-343, Krakow, POLAND
| | - Paul E Harris
- Columbia University, Division of Endocrinology, Department of Medicine, UNITED STATES
| | - Marcello Leopoldo
- Università degli Studi di Bari Aldo Moro: Universita degli Studi di Bari Aldo Moro, Dipartimento di Farmacia-Scienze del Farmaco, Via Orabona, 4, 70125, Bari, ITALY
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4
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Borgarelli C, Klingl YE, Escamilla-Ayala A, Munck S, Van Den Bosch L, De Borggraeve WM, Ismalaj E. Lighting Up the Plasma Membrane: Development and Applications of Fluorescent Ligands for Transmembrane Proteins. Chemistry 2021; 27:8605-8641. [PMID: 33733502 DOI: 10.1002/chem.202100296] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Indexed: 12/16/2022]
Abstract
Despite the fact that transmembrane proteins represent the main therapeutic targets for decades, complete and in-depth knowledge about their biochemical and pharmacological profiling is not fully available. In this regard, target-tailored small-molecule fluorescent ligands are a viable approach to fill in the missing pieces of the puzzle. Such tools, coupled with the ability of high-precision optical techniques to image with an unprecedented resolution at a single-molecule level, helped unraveling many of the conundrums related to plasma proteins' life-cycle and druggability. Herein, we review the recent progress made during the last two decades in fluorescent ligand design and potential applications in fluorescence microscopy of voltage-gated ion channels, ligand-gated ion channels and G-coupled protein receptors.
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Affiliation(s)
- Carlotta Borgarelli
- Department of Chemistry, Molecular Design and Synthesis, KU Leuven Campus Arenberg Celestijnenlaan 200F -, box 2404, 3001, Leuven, Belgium
| | - Yvonne E Klingl
- Department of Neurosciences, Experimental Neurology and Leuven Brain Institute (LBI), KU Leuven Campus Gasthuisberg O&N5 -, box 602 Herestraat 49, 3000, Leuven, Belgium.,Laboratory of Neurobiology, VIB, Center for Brain &, Disease Research, VIB-KU Leuven Campus Gasthuisberg O&N5 -, box 602 Herestraat 49, 3000, Leuven, Belgium
| | - Abril Escamilla-Ayala
- Center for Brain & Disease Research, & VIB BioImaging Core, VIB-KU Leuven Campus Gasthuisberg O&N5 -, box 602 Herestraat 49, 3000, Leuven, Belgium.,Department of Neurosciences, Leuven Brain Institute, KU Leuven, Campus Gasthuisberg O&N5 - box 602 Herestraat 49, 3000, Leuven, Belgium
| | - Sebastian Munck
- Center for Brain & Disease Research, & VIB BioImaging Core, VIB-KU Leuven Campus Gasthuisberg O&N5 -, box 602 Herestraat 49, 3000, Leuven, Belgium.,Department of Neurosciences, Leuven Brain Institute, KU Leuven, Campus Gasthuisberg O&N5 - box 602 Herestraat 49, 3000, Leuven, Belgium
| | - Ludo Van Den Bosch
- Department of Neurosciences, Experimental Neurology and Leuven Brain Institute (LBI), KU Leuven Campus Gasthuisberg O&N5 -, box 602 Herestraat 49, 3000, Leuven, Belgium.,Laboratory of Neurobiology, VIB, Center for Brain &, Disease Research, VIB-KU Leuven Campus Gasthuisberg O&N5 -, box 602 Herestraat 49, 3000, Leuven, Belgium
| | - Wim M De Borggraeve
- Department of Chemistry, Molecular Design and Synthesis, KU Leuven Campus Arenberg Celestijnenlaan 200F -, box 2404, 3001, Leuven, Belgium
| | - Ermal Ismalaj
- Department of Chemistry, Molecular Design and Synthesis, KU Leuven Campus Arenberg Celestijnenlaan 200F -, box 2404, 3001, Leuven, Belgium
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Abstract
AbstractHydantoin and its analogues such as thiohydantoin and iminohydantoin have received substantial attention from both a chemical and a biological point of view. Several compounds of this class have shown useful pharmacological activities such as anticonvulsant, antitumor, antiarrhythmic, and herbicidal properties that have led, in some cases, to clinical applications. Because of these broad-spectrum activities, intensive research efforts have been dedicated in industry and academia to the synthesis and structural modifications of hydantoin and its derivatives. Realizing the importance of hydantoin in organic and medicinal chemistry, we also initiated a research program that successfully designed and developed new routes and methods for the formation of hydantoin, thiohydantoin, and iminohydantoin substituted at various positions, particularly at the N-1 position without following a protection–deprotection strategy. Because combinations of two or more pharmacophoric groups can lead to hybrid molecules that display a mixed mechanism of action on biological targets, we extended our developed strategy to the syntheses of new types of hydantoin-based hybrid molecules by combining hydantoin with a triazole, isoxazoline, or phosphate scaffold as a second pharmacophore to exploit their diverse biological functions.1 Introduction2 Chemistry and Properties2.1 Physical Properties2.2 Chemical Properties2.3 Biological Properties3 General Synthetic Methods4 Synthesis of Diversely Substituted Hydantoins5 Synthesis of Diversely Substituted Thiohydantoins6 Synthesis of Diversely Substituted Iminohydantoins7 Fused or Bicyclic (Thio)hydantoins8 Di- or Multivalent (Thio)hydantoins9 Hydantoin-Based Hybrid Molecules9.1 Hydantoin–Isooxazoline Hybrids9.2 Hydantoin–Triazole Hybrids9.3 Hydantoin–Phosphate Hybrids: Phosphorylated Hydantoins10 Summary and Outlook
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Khiar‐Fernández N, Macicior J, Marcos‐Ramiro B, Ortega‐Gutiérrez S. Chemistry for the Identification of Therapeutic Targets: Recent Advances and Future Directions. European J Org Chem 2021. [DOI: 10.1002/ejoc.202001507] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Nora Khiar‐Fernández
- Department of Organic Chemistry School of Chemistry Universidad Complutense de Madrid Plaza de las Ciencias s/n 28040 Madrid Spain
| | - Jon Macicior
- Department of Organic Chemistry School of Chemistry Universidad Complutense de Madrid Plaza de las Ciencias s/n 28040 Madrid Spain
| | - Beatriz Marcos‐Ramiro
- Department of Organic Chemistry School of Chemistry Universidad Complutense de Madrid Plaza de las Ciencias s/n 28040 Madrid Spain
| | - Silvia Ortega‐Gutiérrez
- Department of Organic Chemistry School of Chemistry Universidad Complutense de Madrid Plaza de las Ciencias s/n 28040 Madrid Spain
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Conner JW, Poole DP, Jörg M, Veldhuis NA. New small molecule fluorescent probes for G protein-coupled receptors: valuable tools for drug discovery. Future Med Chem 2021; 13:63-90. [PMID: 33319586 DOI: 10.4155/fmc-2019-0327] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
G protein-coupled receptors (GPCRs) are essential signaling proteins and tractable therapeutic targets. To develop new drug candidates, GPCR drug discovery programs require versatile, sensitive pharmacological tools for ligand binding and compound screening. With the availability of new imaging modalities and proximity-based ligand binding technologies, fluorescent ligands offer many advantages and are increasingly being used, yet labeling small molecules remains considerably more challenging relative to peptides. Focusing on recent fluorescent small molecule studies for family A GPCRs, this review addresses some of the key challenges, synthesis approaches and structure-activity relationship considerations, and discusses advantages of using high-resolution GPCR structures to inform conjugation strategies. While no single approach guarantees successful labeling without loss of affinity or selectivity, the choice of fluorophore, linker type and site of attachment have proved to be critical factors that can significantly affect their utility in drug discovery programs, and as discussed, can sometimes lead to very unexpected results.
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Iliopoulos-Tsoutsouvas C, Kulkarni RN, Makriyannis A, Nikas SP. Fluorescent probes for G-protein-coupled receptor drug discovery. Expert Opin Drug Discov 2018; 13:933-947. [DOI: 10.1080/17460441.2018.1518975] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
| | - Rohit N. Kulkarni
- Section on Islet Cell and Regenerative Biology, Joslin Diabetes Center. Department of Medicine, Brigham and Women’s Hospital, Harvard Stem Cell Institute, Harvard Medical School, Boston, Massachusetts, USA
| | - Alexandros Makriyannis
- Center for Drug Discovery and Departments of Chemistry & Chemical Biology and Pharmaceutical Sciences, Northeastern University, Boston, Massachusetts, USA
| | - Spyros P. Nikas
- Center for Drug Discovery and Department of Pharmaceutical Sciences, Northeastern University, Boston, Massachusetts, USA
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Abstract
α-Hydroxytropolones (αHTs) are excellent metalloenzyme-inhibiting fragments that have been the basis for the development of potent inhibitors of various therapeutically important enzymes. The following manuscript describes a final-step amidation approach for αHT diversification. The method takes advantage of a scalable, chromatography-free synthesis of a carboxylic acid-appended αHT, and in the present manuscript we describe the synthesis of eight amide-containing αHTs, three of which we envision using as chemical probes. We expect that the general strategy will find widespread usage in both chemical biology and medicinal chemistry studies on αHTs.
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Affiliation(s)
- Alex J. Berkowitz
- Department of Chemistry, Brooklyn College, The City University of New York, 2900 Bedford Avenue, Brooklyn, NY, 11210, United States
- Ph.D. Program in Chemistry, The Graduate Center, The City University of New York, 365 Fifth Avenue, New York, NY, 10016, United States
| | - Rudolf G. Abdelmessih
- Department of Chemistry, Brooklyn College, The City University of New York, 2900 Bedford Avenue, Brooklyn, NY, 11210, United States
| | - Ryan P. Murelli
- Department of Chemistry, Brooklyn College, The City University of New York, 2900 Bedford Avenue, Brooklyn, NY, 11210, United States
- Ph.D. Program in Chemistry, The Graduate Center, The City University of New York, 365 Fifth Avenue, New York, NY, 10016, United States
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Hernández-Torres G, Enríquez-Palacios E, Mecha M, Feliú A, Rueda-Zubiaurre A, Angelina A, Martín-Cruz L, Martín-Fontecha M, Palomares O, Guaza C, Peña-Cabrera E, López-Rodríguez ML, Ortega-Gutiérrez S. Development of a Fluorescent Bodipy Probe for Visualization of the Serotonin 5-HT 1A Receptor in Native Cells of the Immune System. Bioconjug Chem 2018; 29:2021-2027. [PMID: 29733594 DOI: 10.1021/acs.bioconjchem.8b00228] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Serotonin (5-HT) modulates key aspects of the immune system. However, its precise function and the receptors involved in the observed effects have remained elusive. Among the different serotonin receptors, 5-HT1A plays an important role in the immune system given its presence in cells involved in both the innate and adaptive immune responses, but its actual levels of expression under different conditions have not been comprehensively studied due to the lack of suitable tools. To further clarify the role of 5-HT1A receptor in the immune system, we have developed a fluorescent small molecule probe that enables the direct study of the receptor levels in native cells. This probe allows direct profiling of the receptor expression in immune cells using flow cytometry. Our results show that important subsets of immune cells including human monocytes and dendritic cells express functional 5-HT1A and that its activation is associated with anti-inflammatory signaling. Furthermore, application of the probe to the experimental autoimmune encephalomyelitis model of multiple sclerosis demonstrates its potential to detect the specific overexpression of the 5-HT1A receptor in CD4+ T cells. Accordingly, the probe reported herein represents a useful tool whose use can be extended to study the levels of 5-HT1A receptor in ex vivo samples of different immune system conditions.
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Affiliation(s)
| | | | - Miriam Mecha
- Functional and Systems Neurobiology Department, Neuroimmunology Group , Instituto Cajal , 28002 Madrid , Spain
| | - Ana Feliú
- Functional and Systems Neurobiology Department, Neuroimmunology Group , Instituto Cajal , 28002 Madrid , Spain
| | | | | | | | | | | | - Carmen Guaza
- Functional and Systems Neurobiology Department, Neuroimmunology Group , Instituto Cajal , 28002 Madrid , Spain
| | - Eduardo Peña-Cabrera
- Departament of Chemistry , Universidad de Guanajuato , Guanajuato 36050 , Mexico
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Camicia F, Celentano AM, Johns ME, Chan JD, Maldonado L, Vaca H, Di Siervi N, Kamentezky L, Gamo AM, Ortega-Gutierrez S, Martin-Fontecha M, Davio C, Marchant JS, Rosenzvit MC. Unique pharmacological properties of serotoninergic G-protein coupled receptors from cestodes. PLoS Negl Trop Dis 2018; 12:e0006267. [PMID: 29425245 PMCID: PMC5823469 DOI: 10.1371/journal.pntd.0006267] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2017] [Revised: 02/22/2018] [Accepted: 01/24/2018] [Indexed: 11/18/2022] Open
Abstract
Background Cestodes are a diverse group of parasites, some of them being agents of neglected diseases. In cestodes, little is known about the functional properties of G protein coupled receptors (GPCRs) which have proved to be highly druggable targets in other organisms. Notably, serotoninergic G-protein coupled receptors (5-HT GPCRs) play major roles in key functions like movement, development and reproduction in parasites. Methodology/Principal findings Three 5-HT GPCRs from Echinococcus granulosus and Mesocestoides corti were cloned, sequenced, bioinformatically analyzed and functionally characterized. Multiple sequence alignment with other GPCRs showed the presence of seven transmembrane segments and conserved motifs but interesting differences were also observed. Phylogenetic analysis grouped these new sequences within the 5-HT7 clade of GPCRs. Molecular modeling showed a striking resemblance in the spatial localization of key residues with their mammalian counterparts. Expression analysis using available RNAseq data showed that both E. granulosus sequences are expressed in larval and adult stages. Localization studies performed in E. granulosus larvae with a fluorescent probe produced a punctiform pattern concentrated in suckers. E. granulosus and M. corti larvae showed an increase in motility in response to serotonin. Heterologous expression revealed elevated levels of cAMP production in response to 5-HT and two of the GPCRs showed extremely high sensitivity to 5-HT (picomolar range). While each of these GPCRs was activated by 5-HT, they exhibit distinct pharmacological properties (5-HT sensitivity, differential responsiveness to ligands). Conclusions/Significance These data provide the first functional report of GPCRs in parasitic cestodes. The serotoninergic GPCRs characterized here may represent novel druggable targets for antiparasitic intervention. Cestode parasites are flatworms with the ability to parasitize almost every vertebrate species. Several of these parasites are etiological agents of neglected diseases prioritized by WHO, such as hydatid disease, or hydatidosis, a zoonosis caused by species of the genus Echinococcus that affects millions of people worldwide. Due to the scarcity of anthelmintic drugs available and the emergence of resistant parasites, the discovery of new anthelmintic drugs is mandatory. Neuromuscular function has been the target of commonly used drugs against parasitic diseases to impact movement, parasite development and reproduction. Here we describe three new proteins, some of them highly expressed in cestodes which could be relevant for motility. Using different approaches, the three proteins were identified as G protein coupled receptors for serotonin, an important neurotransmitter and a known modulator of cestode motility. These new receptors exhibit unique characteristics including a particular sensitivity to serotonin as well as a distinctive pharmacology, which will assist their targeting for chemotherapeutic intervention.
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Affiliation(s)
- Federico Camicia
- Universidad de Buenos Aires, Consejo Nacional de Investigaciones Científicas y Técnicas, Instituto de Investigaciones en Microbiología y Parasitología Médica (IMPAM-UBA-CONICET), Facultad de Medicina, Buenos Aires, Argentina
| | - Ana M. Celentano
- Universidad de Buenos Aires, Consejo Nacional de Investigaciones Científicas y Técnicas, Instituto de Investigaciones en Microbiología y Parasitología Médica (IMPAM-UBA-CONICET), Facultad de Medicina, Buenos Aires, Argentina
- Universidad de Buenos Aires, Facultad de Medicina, Departamento de Microbiología, Parasitología e Inmunología, Paraguay, CABA, Argentina
| | - Malcolm E. Johns
- Department of Pharmacology, University of Minnesota, Minneapolis, Minnesota, United States of America
| | - John D. Chan
- Department of Biomedical Sciences, Iowa State University, Ames, Iowa, United States of America
| | - Lucas Maldonado
- Universidad de Buenos Aires, Consejo Nacional de Investigaciones Científicas y Técnicas, Instituto de Investigaciones en Microbiología y Parasitología Médica (IMPAM-UBA-CONICET), Facultad de Medicina, Buenos Aires, Argentina
| | - Hugo Vaca
- Universidad de Buenos Aires, Consejo Nacional de Investigaciones Científicas y Técnicas, Instituto de Investigaciones en Microbiología y Parasitología Médica (IMPAM-UBA-CONICET), Facultad de Medicina, Buenos Aires, Argentina
| | - Nicolás Di Siervi
- Universidad de Buenos Aires, Consejo Nacional de Investigaciones Científicas y Técnicas, Instituto de Investigaciones Farmacológicas (ININFA-UBA-CONICET), Facultad de Farmacia y Bioquímica, Buenos Aires, Argentina
| | - Laura Kamentezky
- Universidad de Buenos Aires, Consejo Nacional de Investigaciones Científicas y Técnicas, Instituto de Investigaciones en Microbiología y Parasitología Médica (IMPAM-UBA-CONICET), Facultad de Medicina, Buenos Aires, Argentina
| | - Ana M. Gamo
- Departamento de Química Orgánica I, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, Madrid, Spain
| | - Silvia Ortega-Gutierrez
- Departamento de Química Orgánica I, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, Madrid, Spain
| | - Mar Martin-Fontecha
- Departamento de Química Orgánica I, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, Madrid, Spain
| | - Carlos Davio
- Universidad de Buenos Aires, Consejo Nacional de Investigaciones Científicas y Técnicas, Instituto de Investigaciones Farmacológicas (ININFA-UBA-CONICET), Facultad de Farmacia y Bioquímica, Buenos Aires, Argentina
| | - Jonathan S. Marchant
- Department of Cell Biology, Neurobiology & Anatomy; Medical College of Wisconsin; Watertown Plank Road; Milwaukee; WI; United States of America
- * E-mail: (MCR); (JSM)
| | - Mara C. Rosenzvit
- Universidad de Buenos Aires, Consejo Nacional de Investigaciones Científicas y Técnicas, Instituto de Investigaciones en Microbiología y Parasitología Médica (IMPAM-UBA-CONICET), Facultad de Medicina, Buenos Aires, Argentina
- * E-mail: (MCR); (JSM)
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Kong X, Dong B, Song X, Wang C, Zhang N, Lin W. Dual turn-on fluorescence signal-based controlled release system for real-time monitoring of drug release dynamics in living cells and tumor tissues. Theranostics 2018; 8:800-811. [PMID: 29344307 PMCID: PMC5771094 DOI: 10.7150/thno.21577] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2017] [Accepted: 11/18/2017] [Indexed: 01/24/2023] Open
Abstract
Controlled release systems with capabilities for direct and real-time monitoring of the release and dynamics of drugs in living systems are of great value for cancer chemotherapy. Herein, we describe a novel dual turn-on fluorescence signal-based controlled release system (CDox), in which the chemotherapy drug doxorubicin (Dox) and the fluorescent dye (CH) are conjugated by a hydrazone moiety, a pH-responsive cleavable linker. CDox itself shows nearly no fluorescence as the fluorescence of CH and Dox is essentially quenched by the C=N isomerization and N-N free rotation. However, when activated under acidic conditions, CDox could be hydrolyzed to afford Dox and CH, resulting in dual turn-on signals with emission peaks at 595 nm and 488 nm, respectively. Notably, CDox exhibits a desirable controlled release feature as the hydrolysis rate is limited by the steric hindrance effect from both the Dox and CH moieties. Cytotoxicity assays indicate that CDox shows much lower cytotoxicity relative to Dox, and displays higher cell inhibition rate to cancer than normal cells. With the aid of the dual turn-on fluorescence at different wavelengths, the drug release dynamics of CDox in living HepG2 and 4T-1 cells was monitored in double channels in a real-time fashion. Importantly, two-photon fluorescence imaging of CDox in living tumor tissues was also successfully performed by high-definition 3D imaging. We expect that the unique controlled release system illustrated herein could provide a powerful means to investigate modes of action of drugs, which is critical for development of much more robust and effective chemotherapy drugs.
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Azuaje J, López P, Iglesias A, de la Fuente RA, Pérez-Rubio JM, García D, Stępniewski TM, García-Mera X, Brea JM, Selent J, Pérez D, Castro M, Loza MI, Sotelo E. Development of Fluorescent Probes that Target Serotonin 5-HT 2B Receptors. Sci Rep 2017; 7:10765. [PMID: 28883627 PMCID: PMC5589878 DOI: 10.1038/s41598-017-11370-2] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2017] [Accepted: 08/23/2017] [Indexed: 01/07/2023] Open
Abstract
Some 5-HT2B fluorescent probes were obtained by tagging 1-(2,5-dimethoxy-4-iodophenyl)-propan-2-amine (DOI) with a subset of fluorescent amines. Some of the resulting fluorescent ligands showed excellent affinity and selectivity profiles at the 5-HT2B receptors (e.g. 12b), while retain the agonistic functional behaviour of the model ligand (DOI). The study highlighted the most salient features of the structure-activity relationship in this series and these were substantiated by a molecular modelling study based on a receptor-driven docking model constructed on the basis of the crystal structure of the human 5-HT2B receptor. One of the fluorescent ligands developed in this work, compound 12i, specifically labelled CHO-K1 cells expressing 5-HT2B receptors and not parental CHO-K1 cells in a concentration-dependent manner. 12i enables imaging and quantification of specific 5-HT2B receptor labelling in live cells by automated fluorescence microscopy as well as quantification by measurements of fluorescence intensity using a fluorescence plate reader.
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Affiliation(s)
- Jhonny Azuaje
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS), Universidade de Santiago de Compostela, E-15782, Santiago de Compostela, Spain
- Departamento de Química Orgánica, Facultad de Farmacia, Universidade de Santiago de Compostela, E-15782, Santiago de Compostela, Spain
- Instituto de Farmacia Industrial (IFI), Universidade de Santiago de Compostela, E-15782, Santiago de Compostela, Spain
| | - Paula López
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS), Universidade de Santiago de Compostela, E-15782, Santiago de Compostela, Spain
- Departamento de Química Orgánica, Facultad de Farmacia, Universidade de Santiago de Compostela, E-15782, Santiago de Compostela, Spain
- Instituto de Farmacia Industrial (IFI), Universidade de Santiago de Compostela, E-15782, Santiago de Compostela, Spain
| | - Alba Iglesias
- Instituto de Farmacia Industrial (IFI), Universidade de Santiago de Compostela, E-15782, Santiago de Compostela, Spain
- Centro Singular de Investigación en Medicina Molecular e Enfermidades Crónicas (CIMUS), Universidade de Santiago de Compostela, E-15782, Santiago de Compostela, Spain
| | - Rocío A de la Fuente
- Instituto de Farmacia Industrial (IFI), Universidade de Santiago de Compostela, E-15782, Santiago de Compostela, Spain
- Centro Singular de Investigación en Medicina Molecular e Enfermidades Crónicas (CIMUS), Universidade de Santiago de Compostela, E-15782, Santiago de Compostela, Spain
| | - José M Pérez-Rubio
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS), Universidade de Santiago de Compostela, E-15782, Santiago de Compostela, Spain
- Departamento de Química Orgánica, Facultad de Farmacia, Universidade de Santiago de Compostela, E-15782, Santiago de Compostela, Spain
| | - Diego García
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS), Universidade de Santiago de Compostela, E-15782, Santiago de Compostela, Spain
| | - Tomasz Maciej Stępniewski
- PharmacoInformatics Group, Research Program on Biomedical Informatics (GRIB) PRBB, Barcelona, 08003, Spain
| | - Xerardo García-Mera
- Departamento de Química Orgánica, Facultad de Farmacia, Universidade de Santiago de Compostela, E-15782, Santiago de Compostela, Spain
- Instituto de Farmacia Industrial (IFI), Universidade de Santiago de Compostela, E-15782, Santiago de Compostela, Spain
| | - José M Brea
- Instituto de Farmacia Industrial (IFI), Universidade de Santiago de Compostela, E-15782, Santiago de Compostela, Spain
- Centro Singular de Investigación en Medicina Molecular e Enfermidades Crónicas (CIMUS), Universidade de Santiago de Compostela, E-15782, Santiago de Compostela, Spain
| | - Jana Selent
- PharmacoInformatics Group, Research Program on Biomedical Informatics (GRIB) PRBB, Barcelona, 08003, Spain
- Faculty of Chemistry, Biological and Chemical Research Centre, University of Warsaw, 02-093, Warsaw, Poland
| | - Dolores Pérez
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS), Universidade de Santiago de Compostela, E-15782, Santiago de Compostela, Spain
- Departamento de Química Orgánica, Facultad de Farmacia, Universidade de Santiago de Compostela, E-15782, Santiago de Compostela, Spain
| | - Marián Castro
- Instituto de Farmacia Industrial (IFI), Universidade de Santiago de Compostela, E-15782, Santiago de Compostela, Spain
- Centro Singular de Investigación en Medicina Molecular e Enfermidades Crónicas (CIMUS), Universidade de Santiago de Compostela, E-15782, Santiago de Compostela, Spain
| | - María I Loza
- Instituto de Farmacia Industrial (IFI), Universidade de Santiago de Compostela, E-15782, Santiago de Compostela, Spain
- Centro Singular de Investigación en Medicina Molecular e Enfermidades Crónicas (CIMUS), Universidade de Santiago de Compostela, E-15782, Santiago de Compostela, Spain
| | - Eddy Sotelo
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS), Universidade de Santiago de Compostela, E-15782, Santiago de Compostela, Spain.
- Departamento de Química Orgánica, Facultad de Farmacia, Universidade de Santiago de Compostela, E-15782, Santiago de Compostela, Spain.
- Instituto de Farmacia Industrial (IFI), Universidade de Santiago de Compostela, E-15782, Santiago de Compostela, Spain.
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14
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Zagórska A, Bucki A, Kołaczkowski M, Siwek A, Głuch-Lutwin M, Starowicz G, Kazek G, Partyka A, Wesołowska A, Słoczyńska K, Pękala E, Pawłowski M. Synthesis and biological evaluation of 2-fluoro and 3-trifluoromethyl-phenyl-piperazinylalkyl derivatives of 1H-imidazo[2,1-f]purine-2,4(3H,8H)-dione as potential antidepressant agents. J Enzyme Inhib Med Chem 2016; 31:10-24. [DOI: 10.1080/14756366.2016.1198902] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Affiliation(s)
| | | | | | | | | | | | | | | | | | - Karolina Słoczyńska
- Department of Pharmaceutical Biochemistry, Jagiellonian University Medical College, Kraków, Poland
| | - Elżbieta Pękala
- Department of Pharmaceutical Biochemistry, Jagiellonian University Medical College, Kraków, Poland
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15
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Gamo AM, González-Vera JA, Rueda-Zubiaurre A, Alonso D, Vázquez-Villa H, Martín-Couce L, Palomares Ó, López JA, Martín-Fontecha M, Benhamú B, López-Rodríguez ML, Ortega-Gutiérrez S. Chemoproteomic Approach to Explore the Target Profile of GPCR ligands: Application to 5-HT1A
and 5-HT6
Receptors. Chemistry 2015; 22:1313-21. [DOI: 10.1002/chem.201503101] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2015] [Indexed: 12/20/2022]
Affiliation(s)
- Ana M. Gamo
- Departamento de Química Orgánica I; Facultad de Ciencias Químicas; Universidad Complutense de Madrid; 28040 Madrid Spain
| | - Juan A. González-Vera
- Departamento de Química Orgánica I; Facultad de Ciencias Químicas; Universidad Complutense de Madrid; 28040 Madrid Spain
| | - Ainoa Rueda-Zubiaurre
- Departamento de Química Orgánica I; Facultad de Ciencias Químicas; Universidad Complutense de Madrid; 28040 Madrid Spain
| | - Dulce Alonso
- Departamento de Química Orgánica I; Facultad de Ciencias Químicas; Universidad Complutense de Madrid; 28040 Madrid Spain
| | - Henar Vázquez-Villa
- Departamento de Química Orgánica I; Facultad de Ciencias Químicas; Universidad Complutense de Madrid; 28040 Madrid Spain
| | - Lidia Martín-Couce
- Departamento de Química Orgánica I; Facultad de Ciencias Químicas; Universidad Complutense de Madrid; 28040 Madrid Spain
| | - Óscar Palomares
- Departamento de Bioquímica y Biología Molecular I; Facultad de Ciencias Químicas; Universidad Complutense de Madrid; 28040 Madrid Spain
| | - Juan A. López
- Proteomics Unit; Centro Nacional de Investigaciones Cardiovasculares, CNIC; 28029 Madrid Spain
| | - Mar Martín-Fontecha
- Departamento de Química Orgánica I; Facultad de Ciencias Químicas; Universidad Complutense de Madrid; 28040 Madrid Spain
| | - Bellinda Benhamú
- Departamento de Química Orgánica I; Facultad de Ciencias Químicas; Universidad Complutense de Madrid; 28040 Madrid Spain
| | - María L. López-Rodríguez
- Departamento de Química Orgánica I; Facultad de Ciencias Químicas; Universidad Complutense de Madrid; 28040 Madrid Spain
| | - Silvia Ortega-Gutiérrez
- Departamento de Química Orgánica I; Facultad de Ciencias Químicas; Universidad Complutense de Madrid; 28040 Madrid Spain
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16
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Vernall AJ, Hill SJ, Kellam B. The evolving small-molecule fluorescent-conjugate toolbox for Class A GPCRs. Br J Pharmacol 2014; 171:1073-84. [PMID: 23734587 DOI: 10.1111/bph.12265] [Citation(s) in RCA: 71] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2013] [Revised: 05/09/2013] [Accepted: 05/17/2013] [Indexed: 01/15/2023] Open
Abstract
The past decade has witnessed fluorescently tagged drug molecules gaining significant attraction in their use as pharmacological tools with which to visualize and interrogate receptor targets at the single-cell level. Additionally, one can generate detailed pharmacological information, such as affinity measurements, down to almost single-molecule detection limits. The now accepted utilization of fluorescence-based readouts in high-throughput/high-content screening provides further evidence that fluorescent molecules offer a safer and more adaptable substitute to radioligands in molecular pharmacology and drug discovery. One such drug-target family that has received considerable attention are the GPCRs; this review therefore summarizes the most recent developments in the area of fluorescent ligand design for this important drug target. We assess recently reported fluorescent conjugates by adopting a receptor-family-based approach, highlighting some of the strengths and weaknesses of the individual molecules and their subsequent use. This review adds further strength to the arguments that fluorescent ligand design and synthesis requires careful planning and execution; providing examples illustrating that selection of the correct fluorescent dye, linker length/composition and geographic attachment point to the drug scaffold can all influence the ultimate selectivity and potency of the final conjugate when compared with its unlabelled precursor. When optimized appropriately, the resultant fluorescent conjugates have been successfully employed in an array of assay formats, including flow cytometry, fluorescence microscopy, FRET and scanning confocal microscopy. It is clear that fluorescently labelled GPCR ligands remain a developing and dynamic research arena.
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Affiliation(s)
- Andrea J Vernall
- School of Pharmacy, Centre for Biomolecular Sciences, University of Nottingham, Nottingham, UK
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17
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Abstract
G-protein-coupled receptors (GPCRs), a superfamily of cell-surface receptors that are the targets of about 40% of prescription drugs on the market, can sense numerous critical extracellular signals. Recent breakthroughs in structural biology, especially in holo-form X-ray crystal structures, have contributed to our understanding of GPCR signaling. However, actions of GPCRs at the cellular and molecular level, interactions between GPCRs, and the role of protein dynamics in receptor activities still remain controversial. To overcome these dilemmas, fluorescent probes of GPCRs have been employed, which have advantages of in vivo safety and real-time monitoring. Various probes that depend on specific mechanisms and/or technologies have been used to study GPCRs. The present review focuses on surveying the design and applications of fluorescent probes for GPCRs that are derived from small molecules or using protein-labeling techniques, as well as discussing some design strategies for new probes.
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Affiliation(s)
- Zhao Ma
- Department of Medicinal Chemistry, Key Laboratory of Chemical Biology (MOE), School of Pharmacy, Shandong University , Jinan, Shandong 250012, China
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18
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Tõntson L, Kopanchuk S, Rinken A. Characterization of 5-HT₁A receptors and their complexes with G-proteins in budded baculovirus particles using fluorescence anisotropy of Bodipy-FL-NAN-190. Neurochem Int 2014; 67:32-8. [PMID: 24508405 DOI: 10.1016/j.neuint.2014.01.012] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2013] [Revised: 01/16/2014] [Accepted: 01/23/2014] [Indexed: 12/25/2022]
Abstract
Bodipy-FL-NAN-190 was found to be well suited for characterization of ligand binding to 5-HT1A receptors expressed in budded baculovirus particles, as binding is accompanied by large increases in fluorescence intensity and anisotropy. This ligand appears to bind rapidly (t1/2,ass<1 min), reversibly (t1/2,diss∼6 min) and has high affinity (Kd=0.30 ± 0.13 nM). This fluorescence anisotropy assay based on Bodipy-FL-NAN-190 binding to baculovirus particles was also a suitable assay system for the pharmacological characterization of non-labelled serotonergic ligands, as well as being sensitive to the presence of G-proteins and guanine nucleotides. Coexpression of αi subunits of human G-proteins in baculovirus particles resulted in the appearance of significantly greater proportion of nucleotide sensitive high affinity agonist binding sites. There were no significant differences between αi1 and αi3 subtypes, while ligand binding in the presence of αi2 had higher sensitivity to GDP and Mn(2+).
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Affiliation(s)
- Lauri Tõntson
- University of Tartu, Institute of Chemistry, Ravila 14a, 50411 Tartu, Estonia
| | - Sergei Kopanchuk
- University of Tartu, Institute of Chemistry, Ravila 14a, 50411 Tartu, Estonia; Competence Centre on Reproductive Medicine & Biology, Tiigi 61b, 50410 Tartu, Estonia
| | - Ago Rinken
- University of Tartu, Institute of Chemistry, Ravila 14a, 50411 Tartu, Estonia; Competence Centre on Reproductive Medicine & Biology, Tiigi 61b, 50410 Tartu, Estonia.
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19
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Chevalier A, Dubois M, Le Joncour V, Dautrey S, Lecointre C, Romieu A, Renard PY, Castel H, Sabot C. Synthesis, Biological Evaluation, and in Vivo Imaging of the first Camptothecin–Fluorescein Conjugate. Bioconjug Chem 2013; 24:1119-33. [DOI: 10.1021/bc3005304] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Arnaud Chevalier
- Normandie University, COBRA, UMR 6014 and FR 3038; University of Rouen; INSA
of Rouen; CNRS, 1 rue Tesnière 76821 Mont-Saint-Aignan, Cedex,
France
| | - Martine Dubois
- Inserm U982, Laboratory
of Neuronal
and Neuroendocrine Communication and Differentiation (DC2N), Astrocyte and Vascular Niche, Institute of Research and Biomedical Innovation (IRIB), PRES Normandy University, University
of Rouen, 76821 Mont-Saint-Aignan Cedex, France
- North-West Cancéropole (CNO), 59008 Lille Cedex, France
| | - Vadim Le Joncour
- Inserm U982, Laboratory
of Neuronal
and Neuroendocrine Communication and Differentiation (DC2N), Astrocyte and Vascular Niche, Institute of Research and Biomedical Innovation (IRIB), PRES Normandy University, University
of Rouen, 76821 Mont-Saint-Aignan Cedex, France
- North-West Cancéropole (CNO), 59008 Lille Cedex, France
| | - Sébastien Dautrey
- Normandie University, COBRA, UMR 6014 and FR 3038; University of Rouen; INSA
of Rouen; CNRS, 1 rue Tesnière 76821 Mont-Saint-Aignan, Cedex,
France
| | - Céline Lecointre
- Inserm U982, Laboratory
of Neuronal
and Neuroendocrine Communication and Differentiation (DC2N), Astrocyte and Vascular Niche, Institute of Research and Biomedical Innovation (IRIB), PRES Normandy University, University
of Rouen, 76821 Mont-Saint-Aignan Cedex, France
- North-West Cancéropole (CNO), 59008 Lille Cedex, France
| | - Anthony Romieu
- Normandie University, COBRA, UMR 6014 and FR 3038; University of Rouen; INSA
of Rouen; CNRS, 1 rue Tesnière 76821 Mont-Saint-Aignan, Cedex,
France
| | - Pierre-Yves Renard
- Normandie University, COBRA, UMR 6014 and FR 3038; University of Rouen; INSA
of Rouen; CNRS, 1 rue Tesnière 76821 Mont-Saint-Aignan, Cedex,
France
| | - Hélène Castel
- Inserm U982, Laboratory
of Neuronal
and Neuroendocrine Communication and Differentiation (DC2N), Astrocyte and Vascular Niche, Institute of Research and Biomedical Innovation (IRIB), PRES Normandy University, University
of Rouen, 76821 Mont-Saint-Aignan Cedex, France
- North-West Cancéropole (CNO), 59008 Lille Cedex, France
| | - Cyrille Sabot
- Normandie University, COBRA, UMR 6014 and FR 3038; University of Rouen; INSA
of Rouen; CNRS, 1 rue Tesnière 76821 Mont-Saint-Aignan, Cedex,
France
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20
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Kumar V, Rana H, Sankolli R, Kaushik M. Highly efficient dialkylphosphate-mediated syntheses of hydantoins and a bicyclohydantoin under solvent-free conditions. Tetrahedron Lett 2011. [DOI: 10.1016/j.tetlet.2011.09.029] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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21
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Boreham A, Kim TY, Spahn V, Stein C, Mundhenk L, Gruber AD, Haag R, Welker P, Licha K, Alexiev U. Exploiting Fluorescence Lifetime Plasticity in FLIM: Target Molecule Localization in Cells and Tissues. ACS Med Chem Lett 2011; 2:724-8. [PMID: 24900259 DOI: 10.1021/ml200092m] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2011] [Accepted: 08/09/2011] [Indexed: 11/30/2022] Open
Abstract
The mechanisms of drug-receptor interactions and the controlled delivery of drugs via biodegradable and biocompatible nanoparticulate carriers are active research fields in nanomedicine. Many clinically used drugs target G-protein coupled receptors (GPCRs) due to the fact that signaling via GPCRs is crucial in physiological and pathological processes and thus central for the function of biological systems. In this letter, a fast and reliable ratiometric fluorescence lifetime imaging microscopy (rmFLIM) approach is described to analyze the distribution of protein-ligand complexes in the cellular context. Binding of the fluorescently labeled antagonist naloxone to the G-protein coupled μ-opioid receptor is used as an example. To show the broad applicability of the rmFLIM method, we extended this approach to investigate the distribution of polymer-based nanocarriers in histological liver sections.
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Affiliation(s)
- A. Boreham
- Institut für Experimentalphysik, Freie Universität Berlin, Arnimallee 14, D-14195 Berlin, Germany
| | - T.-Y. Kim
- Institut für Experimentalphysik, Freie Universität Berlin, Arnimallee 14, D-14195 Berlin, Germany
| | - V. Spahn
- Klinik für Anästhesiologie, Charité-Universitätsmedizin Berlin, Campus Benjamin Franklin, Hindenburgdamm 30, 12203 Berlin, Germany
| | - C. Stein
- Klinik für Anästhesiologie, Charité-Universitätsmedizin Berlin, Campus Benjamin Franklin, Hindenburgdamm 30, 12203 Berlin, Germany
| | - L. Mundhenk
- Institut für Tierpathologie, Freie Universität Berlin, Robert-von-Ostertag-Strasse 15, 14163 Berlin, Germany
| | - A. D. Gruber
- Institut für Tierpathologie, Freie Universität Berlin, Robert-von-Ostertag-Strasse 15, 14163 Berlin, Germany
| | - R. Haag
- Institut für Chemie und Biochemie, Freie Universität Berlin, Takustrasse 3, 14195 Berlin, Germany
| | - P. Welker
- mivenion GmbH, Robert-Koch-Platz 4, 10115 Berlin, Germany
| | - K. Licha
- mivenion GmbH, Robert-Koch-Platz 4, 10115 Berlin, Germany
| | - U. Alexiev
- Institut für Experimentalphysik, Freie Universität Berlin, Arnimallee 14, D-14195 Berlin, Germany
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22
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Martín-Couce L, Martín-Fontecha M, Capolicchio S, López-Rodríguez ML, Ortega-Gutiérrez S. Development of endocannabinoid-based chemical probes for the study of cannabinoid receptors. J Med Chem 2011; 54:5265-9. [PMID: 21675776 DOI: 10.1021/jm2004392] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
We report the synthesis of new chemical probes (1a,b, 2a-c, 3a-c) based on the structure of the main endocannabinoids for their use in biological systems directly or via click chemistry. As proof of concept, 2-arachidonyl glyceryl ether based biotinylated 3b enables direct visualization of CB(1) receptor in cells. These results represent the starting point for the development of advanced small molecule chemical probes able to generate valuable information about the cannabinoid receptors.
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Affiliation(s)
- Lidia Martín-Couce
- Departamento de Química Orgánica I, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, E-28040 Madrid, Spain
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23
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Lacivita E, Masotti AC, Jafurulla M, Saxena R, Rangaraj N, Chattopadhyay A, Colabufo NA, Berardi F, Perrone R, Leopoldo M. Identification of a red-emitting fluorescent ligand for in vitro visualization of human serotonin 5-HT(1A) receptors. Bioorg Med Chem Lett 2010; 20:6628-32. [PMID: 20888762 DOI: 10.1016/j.bmcl.2010.09.027] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2010] [Revised: 09/03/2010] [Accepted: 09/04/2010] [Indexed: 01/24/2023]
Abstract
The 5-HT(1A) receptor subtype is the most thoroughly studied serotonin receptor subtype. We report here the design, synthesis and characterization of two new fluorescent ligands for the 5-HT(1A) receptor. The new 1-arylpiperazine-based red-emitting fluorescent compound 6 displayed good binding affinity at the 5-HT(1A) receptor (K(i)=35 nM) and was able to label specifically the human 5-HT(1A) receptor stably expressed in CHO cells visualized using confocal laser scanning microscopy.
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Affiliation(s)
- Enza Lacivita
- Università degli Studi di Bari A. Moro, Dipartimento Farmaco-Chimico, via Orabona, 4, 70125 Bari, Italy
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