1
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Svenningsen SW, Luige O, Abdulkarim Z, Strömberg R, Williams NH. Zinc N, N-bis(2-picolyl)amine Chelates Show Substitution-Dependent Cleavage of Phosphodiesters in Models as Well as of PNAzyme-RNA Bulges. Molecules 2024; 29:2123. [PMID: 38731616 PMCID: PMC11085541 DOI: 10.3390/molecules29092123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2024] [Revised: 04/20/2024] [Accepted: 04/24/2024] [Indexed: 05/13/2024] Open
Abstract
PNAzymes are a group of artificial enzymes which show promising results in selective and efficient cleavage of RNA targets. In the present study, we introduce a series of metal chelating groups based on N,N-bis(2-picolyl) groups (parent, 6-methyl and 6-amino substituted) as the active sites of novel PNAzymes. An improved synthetic route for the 6-amino analogues is described. The catalytic activity of the chelating groups for cleaving phosphodiesters were assessed with the model substrate 2-hydroxypropyl p-nitrophenyl phosphate (HPNPP), confirming that the zinc complexes have the reactivity order of parent < 2-methyl < 2-amino. The three ligands were conjugated to a PNA oligomer to form three PNAzymes which showed the same order of reactivity and some sensitivity to the size of the RNA bulge designed into the catalyst-substrate complex. This work demonstrates that the kinetic activity observed for the model substrate HPNPP could be translated onto the PNAzymes, but that more reactive Zn complexes are required for such PNAzymes to be viable therapeutic agents.
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Affiliation(s)
- Søren W. Svenningsen
- Department of Chemistry, University of Sheffield, Richard Roberts Building, Sheffield S3 7HF, UK; (S.W.S.); (Z.A.)
| | - Olivia Luige
- Department of Biosciences and Nutrition, Karolinska Institutet, Neo, Halsovagen 9, 14157 Huddinge, Sweden;
| | - Zeyed Abdulkarim
- Department of Chemistry, University of Sheffield, Richard Roberts Building, Sheffield S3 7HF, UK; (S.W.S.); (Z.A.)
| | - Roger Strömberg
- Department of Biosciences and Nutrition, Karolinska Institutet, Neo, Halsovagen 9, 14157 Huddinge, Sweden;
- Department of Laboratory Medicine, Karolinska Institutet, ANA Futura, Nobels alle 8 B, 14152 Huddinge, Sweden
| | - Nicholas H. Williams
- Department of Chemistry, University of Sheffield, Richard Roberts Building, Sheffield S3 7HF, UK; (S.W.S.); (Z.A.)
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2
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Yadav S, Yadav V, Siegler MA, Moënne-Loccoz P, Jameson GNL, Goldberg DP. A Nonheme Iron(III) Superoxide Complex Leads to Sulfur Oxygenation. J Am Chem Soc 2024; 146:7915-7921. [PMID: 38488295 DOI: 10.1021/jacs.3c12337] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/28/2024]
Abstract
A new alkylthiolate-ligated nonheme iron complex, FeII(BNPAMe2S)Br (1), is reported. Reaction of 1 with O2 at -40 °C, or reaction of the ferric form with O2•- at -80 °C, gives a rare iron(III)-superoxide intermediate, [FeIII(O2)(BNPAMe2S)]+ (2), characterized by UV-vis, 57Fe Mössbauer, ATR-FTIR, EPR, and CSIMS. Metastable 2 then converts to an S-oxygenated FeII(sulfinate) product via a sequential O atom transfer mechanism involving an iron-sulfenate intermediate. These results provide evidence for the feasibility of proposed intermediates in thiol dioxygenases.
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Affiliation(s)
- Sudha Yadav
- Department of Chemistry, The Johns Hopkins University, 3400 North Charles Street, Baltimore, Maryland 21218, United States
| | - Vishal Yadav
- Department of Chemistry, The Johns Hopkins University, 3400 North Charles Street, Baltimore, Maryland 21218, United States
| | - Maxime A Siegler
- Department of Chemistry, The Johns Hopkins University, 3400 North Charles Street, Baltimore, Maryland 21218, United States
| | - Pierre Moënne-Loccoz
- Department of Chemical Physiology and Biochemistry, Oregon Health & Science University, Portland, Oregon 97239, United States
| | - Guy N L Jameson
- School of Chemistry, Bio21 Molecular Science and Biotechnology Institute, The University of Melbourne, 30 Flemington Road,Parkville, Victoria 3010, Australia
| | - David P Goldberg
- Department of Chemistry, The Johns Hopkins University, 3400 North Charles Street, Baltimore, Maryland 21218, United States
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3
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Yadav A, Upadhyay S, Kant R, Srivastava AK. Regioselective Synthesis of Phenanthridines via Pd(II)-Catalyzed Annulative C( sp2)-H Activation. J Org Chem 2023; 88:13568-13583. [PMID: 37738300 DOI: 10.1021/acs.joc.3c01234] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/24/2023]
Abstract
A robust synthesis of phenanthridines has been described via Pd(II)-catalyzed domino C(sp2)-H activation/N-arylation using oxime esters with aryl acyl peroxides in a highly regioselective manner. This protocol is compatible with acetophenone as well as benzophenone-derived oxime esters and allows modular construction of functionalized phenanthridines with wide tolerance of electronic functionality. Further transformations were conducted to synthesize key building blocks, and control experiments were performed to understand the plausible reaction mechanism.
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Affiliation(s)
- Anamika Yadav
- Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute, Lucknow 226031, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Surabhi Upadhyay
- Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute, Lucknow 226031, India
| | - Ruchir Kant
- Biochemistry and Structural Biology Division, CSIR-Central Drug Research Institute, Lucknow 226031, India
| | - Ajay Kumar Srivastava
- Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute, Lucknow 226031, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
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4
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Sivagnanam S, Mahato P, Das P. An overview on the development of different optical sensing platforms for adenosine triphosphate (ATP) recognition. Org Biomol Chem 2023; 21:3942-3983. [PMID: 37128980 DOI: 10.1039/d3ob00209h] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Adenosine triphosphate (ATP), one of the biological anions, plays a crucial role in several biological processes including energy transduction, cellular respiration, enzyme catalysis and signaling. ATP is a bioactive phosphate molecule, recognized as an important extracellular signaling agent. Apart from serving as a universal energy currency for various cellular events, ATP is also considered a factor responsible for numerous physiological activities. It regulates cellular metabolism by breaking phosphoanhydride bonds. Several diseases have been reported widely based on the levels and behavior of ATP. The variation of ATP concentration usually causes a foreseeable impact on mitochondrial physiological function. Mitochondrial dysfunction is responsible for the occurrence of many severe diseases such as angiocardiopathy, malignant tumors and Parkinson's disease. Therefore, there is high demand for developing a sensitive, fast-responsive, nontoxic and versatile detection platform for the detection of ATP. To this end, considerable efforts have been employed by several research groups throughout the world to develop specific and sensitive detection platforms to recognize ATP. Although a repertoire of optical chemosensors (both colorimetric and fluorescent) for ATP has been developed, many of them are not arrayed appropriately. Therefore, in this present review, we focused on the design and sensing strategy of some chemosensors including metal-free, metal-based, sequential sensors, aptamer-based sensors, nanoparticle-based sensors etc. for ATP recognition via diverse binding mechanisms.
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Affiliation(s)
- Subramaniyam Sivagnanam
- Department of Chemistry, SRM Institute of Science and Technology, SRM Nagar, Potheri, Kattankulathur, Tamil Nadu-603203, India.
| | - Prasenjit Mahato
- Department of Chemistry, Raghunathpur College, Sidho-Kanho-Birsha University, Purulia, West Bengal-723133, India
| | - Priyadip Das
- Department of Chemistry, SRM Institute of Science and Technology, SRM Nagar, Potheri, Kattankulathur, Tamil Nadu-603203, India.
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5
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2-Amino-6-methylpyridine based co-crystal salt formation using succinic acid: Single-crystal analysis and computational exploration. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2021.129893] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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6
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Wang S, Gong L, El Fakhri G, Wang J. Efficient synthesis of 6,6′-diamido-2,2′-dipicolylamine ligands for potential phosphate anion sensing. NEW J CHEM 2021; 45:16833-16840. [DOI: 10.1039/d1nj03030b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Through retrosynthetic analysis, functionalized 6,6′-diamido-2,2′-dipicolylamines (DA-DPAs) have been efficiently synthesized, which may accelerate the development of selective probes towards phosphate anions.
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Affiliation(s)
- Shuai Wang
- Gordon Center for Medical Imaging, Massachusetts General Hospital and Harvard Medical School, 125 Nashua Street, Suite 660, Boston, Massachusetts 02114, USA
- School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, China
| | - Lichong Gong
- Martinos Center for Biomedical Imaging, Massachusetts General Hospital and Harvard Medical School, 149 Thirteenth Street, Suite 2301, Charlestown, Massachusetts 02129, USA
| | - Georges El Fakhri
- Gordon Center for Medical Imaging, Massachusetts General Hospital and Harvard Medical School, 125 Nashua Street, Suite 660, Boston, Massachusetts 02114, USA
| | - Junfeng Wang
- Gordon Center for Medical Imaging, Massachusetts General Hospital and Harvard Medical School, 125 Nashua Street, Suite 660, Boston, Massachusetts 02114, USA
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7
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Pagare PP, Ghatge MS, Chen Q, Musayev FN, Venitz J, Abdulmalik O, Zhang Y, Safo MK. Exploration of Structure-Activity Relationship of Aromatic Aldehydes Bearing Pyridinylmethoxy-Methyl Esters as Novel Antisickling Agents. J Med Chem 2020; 63:14724-14739. [PMID: 33205981 DOI: 10.1021/acs.jmedchem.0c01287] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Aromatic aldehydes elicit their antisickling effects primarily by increasing the affinity of hemoglobin (Hb) for oxygen (O2). However, challenges related to weak potency and poor pharmacokinetic properties have hampered their development to treat sickle cell disease (SCD). Herein, we report our efforts to enhance the pharmacological profile of our previously reported compounds. These compounds showed enhanced effects on Hb modification, Hb-O2 affinity, and sickling inhibition, with sustained pharmacological effects in vitro. Importantly, some compounds exhibited unusually high antisickling activity despite moderate effects on the Hb-O2 affinity, which we attribute to an O2-independent antisickling activity, in addition to the O2-dependent activity. Structural studies are consistent with our hypothesis, which revealed the compounds interacting strongly with the polymer-stabilizing αF-helix could potentially weaken the polymer. In vivo studies with wild-type mice demonstrated significant pharmacologic effects. Our structure-based efforts have identified promising leads to be developed as novel therapeutic agents for SCD.
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Affiliation(s)
- Piyusha P Pagare
- Department of Medicinal Chemistry, Virginia Commonwealth University, Richmond, Virginia 23298, United States
| | - Mohini S Ghatge
- Department of Medicinal Chemistry, Virginia Commonwealth University, Richmond, Virginia 23298, United States.,The Institute for Structural Biology, Drug Discovery, and Development, School of Pharmacy, Virginia Commonwealth University, Richmond, Virginia 23298, United States
| | - Qiukan Chen
- Division of Hematology, The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania 19104, United States
| | - Faik N Musayev
- Department of Medicinal Chemistry, Virginia Commonwealth University, Richmond, Virginia 23298, United States.,The Institute for Structural Biology, Drug Discovery, and Development, School of Pharmacy, Virginia Commonwealth University, Richmond, Virginia 23298, United States
| | - Jurgen Venitz
- Department of Pharmaceutics, Virginia Commonwealth University, Richmond, Virginia 23298, United States
| | - Osheiza Abdulmalik
- Division of Hematology, The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania 19104, United States
| | - Yan Zhang
- Department of Medicinal Chemistry, Virginia Commonwealth University, Richmond, Virginia 23298, United States.,The Institute for Structural Biology, Drug Discovery, and Development, School of Pharmacy, Virginia Commonwealth University, Richmond, Virginia 23298, United States
| | - Martin K Safo
- Department of Medicinal Chemistry, Virginia Commonwealth University, Richmond, Virginia 23298, United States.,The Institute for Structural Biology, Drug Discovery, and Development, School of Pharmacy, Virginia Commonwealth University, Richmond, Virginia 23298, United States
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8
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Duda M, Rąpała-Kozik M, Stadnicka KM, Musielak B, Goszczycki P, Witek ŁJ, Zawrotniak M, González-González M, Ostrowska K. Application of pyrrolo[2,3-b]quinoxaline with an N,N-bis(pyridin-2-ylmethyl)ethylenediamine chain for Zn(II) detection in Candida albicans and fibroblast cells. J Photochem Photobiol A Chem 2019. [DOI: 10.1016/j.jphotochem.2019.111944] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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9
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Synthesis of new triazole based imidazo[1,2-a]pyrazine-benzimidazole conjugates: H-bonding assisted FRET efficient ratiometric detection of pyrophosphate. J Photochem Photobiol A Chem 2017. [DOI: 10.1016/j.jphotochem.2017.08.009] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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10
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Sechet D, Kaya Z, Phan TA, Jouffroy M, Bentouhami E, Armspach D, Matt D, Toupet L. Aza-capped cyclodextrins for intra-cavity metal complexation. Chem Commun (Camb) 2017; 53:11717-11720. [DOI: 10.1039/c7cc06434a] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
N,N-Chelators based on aza-capped cyclodextrins were designed to produce complexes with an encapsulated metal unit.
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Affiliation(s)
- D. Sechet
- Laboratoire de Chimie Inorganique Moléculaire et Catalyse
- Institut de Chimie de Strasbourg
- UMR 7177 CNRS
- Université de Strasbourg
- 67081 Strasbourg cedex
| | - Z. Kaya
- Equipe Confinement Moléculaire et Catalyse
- Institut de Chimie de Strasbourg
- UMR 7177 CNRS
- Université de Strasbourg
- 67081 Strasbourg Cedex
| | - T.-A. Phan
- Equipe Confinement Moléculaire et Catalyse
- Institut de Chimie de Strasbourg
- UMR 7177 CNRS
- Université de Strasbourg
- 67081 Strasbourg Cedex
| | - M. Jouffroy
- Laboratoire de Chimie Inorganique Moléculaire et Catalyse
- Institut de Chimie de Strasbourg
- UMR 7177 CNRS
- Université de Strasbourg
- 67081 Strasbourg cedex
| | | | - D. Armspach
- Equipe Confinement Moléculaire et Catalyse
- Institut de Chimie de Strasbourg
- UMR 7177 CNRS
- Université de Strasbourg
- 67081 Strasbourg Cedex
| | - D. Matt
- Laboratoire de Chimie Inorganique Moléculaire et Catalyse
- Institut de Chimie de Strasbourg
- UMR 7177 CNRS
- Université de Strasbourg
- 67081 Strasbourg cedex
| | - L. Toupet
- Institut de Physique de Rennes UMR 6251 CNRS
- 35042 Rennes cedex
- France
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11
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Bosch S, Comba P, Gahan LR, Schenk G. Asymmetric mono- and dinuclear Ga III and Zn II complexes as models for purple acid phosphatases. J Inorg Biochem 2016; 162:343-355. [DOI: 10.1016/j.jinorgbio.2015.12.028] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2015] [Revised: 12/18/2015] [Accepted: 12/28/2015] [Indexed: 10/22/2022]
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12
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Das A, Mondal P, Dasgupta M, Kishore N, Lahiri GK. Substituent directed selectivity in anion recognition by a new class of simple osmium-pyrazole derived receptors. Dalton Trans 2016; 45:2605-17. [PMID: 26733437 DOI: 10.1039/c5dt04538j] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The present article deals with the structurally, spectroscopically and electrochemically characterised osmium-bipyridyl derived complexes [(bpy)2Os(II)(HL1)Cl]ClO4 [1]ClO4 and [(bpy)2Os(II)(HL2)Cl]ClO4 [2]ClO4 incorporating neutral and monodentate pyrazole derivatives (HL) with one free NH function (bpy = 2,2'-bipyridine, HL1 = pyrazole, HL2 = 3,5-dimethylpyrazole). The crystal structures of [1]ClO4 and [2]ClO4 reveal intramolecular hydrogen bonding interactions between the free NH proton of HL and the equatorially placed Cl(-) ligand (N-HCl) with donor-acceptor distances of 3.114(7) Å and 3.153(6) Å as well as intermolecular hydrogen bonding interactions between the NH proton and one of the oxygen atoms of ClO4(-) (N-HO) with donor-acceptor distances of 2.870(10) Å and 3.024(8) Å, respectively. The effect of hydrogen bonding interactions has translated into the less acidic nature of the NH proton of the coordinated HL with estimated pKa > 12. 1(+) and 2(+) exhibit reversible Os(II)/(III) and irreversible Os(III)/(IV) processes in CH3CN within ± 2.0 V versus SCE. The effect of 3,5-dimethyl substituted HL2 on 2(+) has been reflected in the appreciable lowering (40 mV) of the Os(II/III) potential, along with the further decrease in the acidity of the NH proton (pKa > 13.0) with regard to HL1 coordinated 1(+) (pKa: ∼ 12.3). The electronic spectral features of Os(ii) (1(+)/2(+)) and electrochemically generated Os(III) (1(2+)/2(2+)) derived complexes have been analysed by TD-DFT calculations. The efficacy of the 1(+) and 2(+) encompassing free NH proton towards the anion recognition process has been evaluated by different experimental investigations using a wide variety of anions. It however establishes that receptor 1(+) can recognise both F(-) and OAc(-) in acetonitrile solution, while 2(+) is exclusively selective for the F(-) ion.
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Affiliation(s)
- Ankita Das
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai-400076, India.
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13
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Fuchida H, Tabata S, Shindo N, Takashima I, Leng Q, Hatsuyama Y, Hamachi I, Ojida A. Design of Coordination Interaction of Zn(II) Complex with Oligo-Aspartate Peptide to Afford a High-Affinity Tag–Probe Pair. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2015. [DOI: 10.1246/bcsj.20150037] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
| | | | - Naoya Shindo
- Graduate School of Pharmaceutical Sciences, Kyushu University
| | - Ippei Takashima
- Graduate School of Pharmaceutical Sciences, Kyushu University
| | - Qiao Leng
- Graduate School of Pharmaceutical Sciences, Kyushu University
| | - Yuji Hatsuyama
- Graduate School of Pharmaceutical Sciences, Kyushu University
| | - Itaru Hamachi
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University
| | - Akio Ojida
- Graduate School of Pharmaceutical Sciences, Kyushu University
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14
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Conway JH, Fiedler D. An Affinity Reagent for the Recognition of Pyrophosphorylated Peptides. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201411232] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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15
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Conway JH, Fiedler D. An affinity reagent for the recognition of pyrophosphorylated peptides. Angew Chem Int Ed Engl 2015; 54:3941-5. [PMID: 25651128 DOI: 10.1002/anie.201411232] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2014] [Indexed: 11/05/2022]
Abstract
A resin-bound dinuclear zinc(II) complex for the selective capture of pyrophosphopeptides is reported. The metal complex binds diphosphate esters over other anionic groups, such as monophosphate esters, sulfate esters, and carboxylic acids, with high specificity. Immobilization of the compound provided a reagent capable of binding and retaining nanomolar quantities of pyrophosphopeptide in the presence of cell lysate. The high affinity and specificity of the reagent makes it an attractive tool for the study of in vivo pyrophosphorylation.
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Affiliation(s)
- John H Conway
- Department of Chemistry, Princeton University, Washington Rd, Princeton, NJ 08544 (USA)
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16
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Bosch S, Comba P, Gahan LR, Schenk G. Dinuclear Zinc(II) Complexes with Hydrogen Bond Donors as Structural and Functional Phosphatase Models. Inorg Chem 2014; 53:9036-51. [DOI: 10.1021/ic5009945] [Citation(s) in RCA: 67] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Simone Bosch
- Anorganisch-Chemisches Institut, Universität Heidelberg, INF 270, D-69120, Heidelberg, Germany
- School of Chemistry and Molecular Biosciences, University of Queensland, Brisbane, QLD 4072, Australia
| | - Peter Comba
- Anorganisch-Chemisches Institut, Universität Heidelberg, INF 270, D-69120, Heidelberg, Germany
| | - Lawrence R. Gahan
- School of Chemistry and Molecular Biosciences, University of Queensland, Brisbane, QLD 4072, Australia
| | - Gerhard Schenk
- School of Chemistry and Molecular Biosciences, University of Queensland, Brisbane, QLD 4072, Australia
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17
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Plaunt AJ, Harmatys KM, Wolter WR, Suckow MA, Smith BD. Library synthesis, screening, and discovery of modified Zinc(II)-Bis(dipicolylamine) probe for enhanced molecular imaging of cell death. Bioconjug Chem 2014; 25:724-37. [PMID: 24575875 PMCID: PMC3993938 DOI: 10.1021/bc500003x] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
![]()
Zinc(II)-bis(dipicolylamine)
(Zn-BDPA) coordination complexes selectively
target the surfaces of dead and dying mammalian cells, and they have
promise as molecular probes for imaging cell death. A necessary step
toward eventual clinical imaging applications is the development of
next-generation Zn-BDPA complexes with enhanced affinity for the cell
death membrane biomarker, phosphatidylserine (PS). This study employed
an iterative cycle of library synthesis and screening, using a novel
rapid equilibrium dialysis assay, to discover a modified Zn-BDPA structure
with high and selective affinity for vesicles containing PS. The lead
structure was converted into a deep-red fluorescent probe and its
targeting and imaging performance was compared with an unmodified
control Zn-BDPA probe. The evaluation process included a series of
FRET-based vesicle titration studies, cell microscopy experiments,
and rat tumor biodistribution measurements. In all cases, the modified
probe exhibited comparatively higher affinity and selectivity for
the target membranes of dead and dying cells. The results show that
this next-generation deep-red fluorescent Zn-BDPA probe is well suited
for preclinical molecular imaging of cell death in cell cultures and
animal models. Furthermore, it should be possible to substitute the
deep-red fluorophore with alternative reporter groups that enable
clinically useful, deep-tissue imaging modalities, such as MRI and
nuclear imaging.
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Affiliation(s)
- Adam J Plaunt
- Department of Chemistry and Biochemistry, 236 Nieuwland Science Hall and ‡Department of Biological Science, Galvin Life Sciences, University of Notre Dame , Notre Dame, 46556 Indiana, United States
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18
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Wang J, Chen W, Liu X, Wesdemiotis C, Pang Y. A Mononuclear Zinc Complex for Selective Detection of Diphosphate via Fluorescence ESIPT Turn-On. J Mater Chem B 2014; 2:3349-3354. [PMID: 24999430 DOI: 10.1039/c4tb00020j] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A mononuclear zinc complex has been found to exhibit unexpected selectivity for biologically important diphosphate anions (PPi and ADP). The diphosphate binding could turn-on the ESIPT, whose study reveals mechanistic insight to aid the future design of new sensors.
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Affiliation(s)
- Junfeng Wang
- Department of Chemistry, The University of Akron, Akron, Ohio 44325 U.S.A
| | - Weihua Chen
- Department of Chemistry, The University of Akron, Akron, Ohio 44325 U.S.A
| | - Xiumin Liu
- Department of Chemistry, The University of Akron, Akron, Ohio 44325 U.S.A
| | - Chrys Wesdemiotis
- Department of Chemistry, The University of Akron, Akron, Ohio 44325 U.S.A
| | - Yi Pang
- Department of Chemistry, The University of Akron, Akron, Ohio 44325 U.S.A ; Maurice Morton Institute of Polymer Science, The University of Akron, Akron, Ohio 44325 U.S.A
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19
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Kraskouskaya D, Drewry JA, Duodu E, Burger S, Eaton J, Cisneros GA, Gunning PT. Exploring the structural determinants of selective phosphopeptide recognition using bivalent metal-coordination complexes. MEDCHEMCOMM 2013. [DOI: 10.1039/c2md20342a] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We demonstrate that Lewis acidic coordination complexes equipped with cationic binding groups might be best utilized as selective receptors for binding phosphopeptides with anionic side chain residues proximal to the phosphorylated residue.
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Affiliation(s)
- Dziyana Kraskouskaya
- Department of Chemical and Physical Sciences
- University of Toronto
- Mississauga
- Canada
| | - Joel A. Drewry
- Department of Chemical and Physical Sciences
- University of Toronto
- Mississauga
- Canada
| | - Eugenia Duodu
- Department of Chemical and Physical Sciences
- University of Toronto
- Mississauga
- Canada
| | - Steven Burger
- Department of Chemistry
- Wayne State University
- Detroit
- USA
| | - James Eaton
- Department of Chemical and Physical Sciences
- University of Toronto
- Mississauga
- Canada
| | | | - Patrick T. Gunning
- Department of Chemical and Physical Sciences
- University of Toronto
- Mississauga
- Canada
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Long L, Xiao Z, Zampella G, Wei Z, De Gioia L, Liu X. The reactions of pyridinyl thioesters with triiron dodecacarbonyl: their novel diiron carbonyl complexes and mechanistic investigations. Dalton Trans 2012; 41:9482-92. [PMID: 22751866 DOI: 10.1039/c2dt30798g] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Reaction of Fe(3)(CO)(12) with pyridinyl thioester ligand PyCH(2)SCOCH(3) (L(1), Py = pyridin-2-yl) produced complex, [Fe(2)(κ-COCH(3))(μ-SCH(2)Py)(CO)(5)] (1) (PyCH(2)S = pyridin-2-ylmethanethiolate). When complex 1 reacted with PPh(3), a monosubstituted complex, [Fe(2)(κ-COCH(3))(μ-SCH(2)Py)(CO)(4)PPh(3)] (2), was derived. Reaction of the same precursor with analogous thioester ligand PyCH(2)SCOPy (L(2)) generated three novel diiron complexes, [Fe(2)(κ-Py)(μ-SCH(2)Py)(CO)(5)] (3), [Fe(2)(κ-Py)'(μ-SCH(2)Py)(CO)(5)] (4), and [Fe(2)(κ-Py)(μ-SCH(2)Py)(CO)(6)] (5). Complexes 3 and 4 are structural isomers. Complex 5 could be converted into complex 4 but the conversion from complex 5 to the isomer 3 was not observed. All the five complexes were fully characterised using FTIR, NMR, and other techniques. Their structures were determined using X-ray single crystal diffraction analysis. The oxidative formation of complexes 1, 3, 4, and 5 involved C-S and/or C-C bonds cleavages. To probe possible mechanisms for these cleavages, DFT calculations were performed. From the calculations, viable reaction pathways leading to the formation of all the isolated products were delineated. The results of the theoretic calculations also allowed rationalisation of the experimental observations.
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Affiliation(s)
- Li Long
- Department of Chemistry, Nanchang University, Nanchang 330031, China
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Ngo HT, Liu X, Jolliffe KA. Anion recognition and sensing with Zn(II)-dipicolylamine complexes. Chem Soc Rev 2012; 41:4928-65. [PMID: 22688834 DOI: 10.1039/c2cs35087d] [Citation(s) in RCA: 278] [Impact Index Per Article: 23.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
This critical review covers the developments in anion recognition and sensing using Zn(II)-dipicolylamine functionalized receptors over the past decade with emphasis on recent rapid advances in the last five years.
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Affiliation(s)
- Huy Tien Ngo
- School of Chemistry, The University of Sydney, NSW 2006, Australia
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Burger SK, Lacasse M, Verstraelen T, Drewry J, Gunning P, Ayers PW. Automated Parametrization of AMBER Force Field Terms from Vibrational Analysis with a Focus on Functionalizing Dinuclear Zinc(II) Scaffolds. J Chem Theory Comput 2012; 8:554-62. [DOI: 10.1021/ct2007742] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Steven K. Burger
- Department of Chemistry and
Chemical Biology, McMaster University, 1280 Main St. West, Hamilton,
Ontario, Canada
| | - Mike Lacasse
- Department of Chemistry and
Chemical Biology, McMaster University, 1280 Main St. West, Hamilton,
Ontario, Canada
| | - Toon Verstraelen
- Center
for Molecular Modeling,
Ghent University, 903 Technologiepark, B-9050 Zwijnaarde, Belgium
| | - Joel Drewry
- Department of Chemistry, University
of Toronto, 3359 Mississauga Road North, Mississauga, Ontario, Canada
L5L 1C6
| | - Patrick Gunning
- Department of Chemistry, University
of Toronto, 3359 Mississauga Road North, Mississauga, Ontario, Canada
L5L 1C6
| | - Paul W. Ayers
- Department of Chemistry and
Chemical Biology, McMaster University, 1280 Main St. West, Hamilton,
Ontario, Canada
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Drewry JA, Burger S, Mazouchi A, Duodu E, Ayers P, Gradinaru CC, Gunning PT. Src homology 2 domain proteomimetics: developing phosphopeptide selective receptors. MEDCHEMCOMM 2012. [DOI: 10.1039/c2md20052j] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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Drewry JA, Gunning PT. Recent advances in biosensory and medicinal therapeutic applications of zinc(II) and copper(II) coordination complexes. Coord Chem Rev 2011. [DOI: 10.1016/j.ccr.2010.10.018] [Citation(s) in RCA: 115] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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Mohamed MF, Brown RS. Cleavage of an RNA Model Catalyzed by Dinuclear Zn(II) Complexes Containing Rate-Accelerating Pendants. Comparison of the Catalytic Benefits of H-Bonding and Hydrophobic Substituents. J Org Chem 2010; 75:8471-7. [DOI: 10.1021/jo1017316] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Mark F. Mohamed
- Department of Chemistry, Queen’s University, Kingston, Ontario, Canada K7L 3N6
| | - R. Stan Brown
- Department of Chemistry, Queen’s University, Kingston, Ontario, Canada K7L 3N6
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Drewry JA, Fletcher S, Yue P, Marushchak D, Zhao W, Sharmeen S, Zhang X, Schimmer AD, Gradinaru C, Turkson J, Gunning PT. Coordination complex SH2 domain proteomimetics: an alternative approach to disrupting oncogenic protein-protein interactions. Chem Commun (Camb) 2010; 46:892-4. [PMID: 20107641 PMCID: PMC2910512 DOI: 10.1039/b919608k] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We report the first application of coordination complexes as functional proteomimetics of the Src homology 2 (SH2) phosphopeptide-binding domain. As a proof-of-concept, functionalized bis-dipicolylamine (BDPA) copper(ii) complexes are shown to disrupt oncogenic Stat3-Stat3 protein complexes and elicit promising anti-tumour activity.
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Affiliation(s)
- Joel A. Drewry
- Department of Chemistry, University of Toronto, Toronto, Canada
- Department of Chemical & Physical Sciences, 3359 Mississauga Rd. N., Mississauga, Canada. Fax: +1 905-569-4929; Tel: +1 905-569-4588
| | - Steven Fletcher
- Department of Chemistry, University of Toronto, Toronto, Canada
- Department of Chemical & Physical Sciences, 3359 Mississauga Rd. N., Mississauga, Canada. Fax: +1 905-569-4929; Tel: +1 905-569-4588
| | - Peibin Yue
- Department of Molecular Biology and Microbiology, Burnett College of Biomedical Sciences, University of Central Florida, Orlando, FL 32826, USA
| | - Denys Marushchak
- Department of Chemical & Physical Sciences, 3359 Mississauga Rd. N., Mississauga, Canada. Fax: +1 905-569-4929; Tel: +1 905-569-4588
| | - Wei Zhao
- Department of Molecular Biology and Microbiology, Burnett College of Biomedical Sciences, University of Central Florida, Orlando, FL 32826, USA
| | - Sumaiya Sharmeen
- Ontario Cancer Institute/Princess Margaret Hospital, 610 University Avenue, Toronto, Canada ON M5G 2M9
| | - Xiaolei Zhang
- Department of Molecular Biology and Microbiology, Burnett College of Biomedical Sciences, University of Central Florida, Orlando, FL 32826, USA
| | - Aaron D. Schimmer
- Ontario Cancer Institute/Princess Margaret Hospital, 610 University Avenue, Toronto, Canada ON M5G 2M9
| | - Claudiu Gradinaru
- Department of Chemical & Physical Sciences, 3359 Mississauga Rd. N., Mississauga, Canada. Fax: +1 905-569-4929; Tel: +1 905-569-4588
| | - James Turkson
- Department of Molecular Biology and Microbiology, Burnett College of Biomedical Sciences, University of Central Florida, Orlando, FL 32826, USA
| | - Patrick T. Gunning
- Department of Chemistry, University of Toronto, Toronto, Canada
- Department of Chemical & Physical Sciences, 3359 Mississauga Rd. N., Mississauga, Canada. Fax: +1 905-569-4929; Tel: +1 905-569-4588
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