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Goldberg JM, Lippard SJ. Mobile zinc as a modulator of sensory perception. FEBS Lett 2023; 597:151-165. [PMID: 36416529 PMCID: PMC10108044 DOI: 10.1002/1873-3468.14544] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2022] [Revised: 11/15/2022] [Accepted: 11/16/2022] [Indexed: 11/24/2022]
Abstract
Mobile zinc is an abundant transition metal ion in the central nervous system, with pools of divalent zinc accumulating in regions of the brain engaged in sensory perception and memory formation. Here, we present essential tools that we developed to interrogate the role(s) of mobile zinc in these processes. Most important are (a) fluorescent sensors that report the presence of mobile zinc and (b) fast, Zn-selective chelating agents for measuring zinc flux in animal tissue and live animals. The results of our studies, conducted in collaboration with neuroscientist experts, are presented for sensory organs involved in hearing, smell, vision, and learning and memory. A general principle emerging from these studies is that the function of mobile zinc in all cases appears to be downregulation of the amplitude of the response following overstimulation of the respective sensory organs. Possible consequences affecting human behavior are presented for future investigations in collaboration with interested behavioral scientists.
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Affiliation(s)
| | - Stephen J Lippard
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, MA, USA
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2
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Meng Q, Wu M, Shang Z, Zhang Z, Zhang R. Responsive gadolinium(III) complex-based small molecule magnetic resonance imaging probes: Design, mechanism and application. Coord Chem Rev 2022. [DOI: 10.1016/j.ccr.2021.214398] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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3
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4
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Kakeya K, Fukagawa H, Teraoka A, Mizutani T. Ring Closure Reaction of 19-Substituted Bilinones to 5-Oxaporphyrin Metal Complexes Induced by Zn 2+ and Cu 2+ —Application to Turn-on Red Fluorogenic Probes for Zinc Ions—. CHEM LETT 2021. [DOI: 10.1246/cl.200921] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Kazuhisa Kakeya
- Department of Molecular Chemistry and Biochemistry, Doshisha University, Kyotanabe, Kyoto 610-0321, Japan
| | - Hiroyuki Fukagawa
- Department of Molecular Chemistry and Biochemistry, Doshisha University, Kyotanabe, Kyoto 610-0321, Japan
| | - Akihiro Teraoka
- Department of Molecular Chemistry and Biochemistry, Doshisha University, Kyotanabe, Kyoto 610-0321, Japan
| | - Tadashi Mizutani
- Department of Molecular Chemistry and Biochemistry, Doshisha University, Kyotanabe, Kyoto 610-0321, Japan
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5
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Bonnet CS, Tóth É. Metal-based environment-sensitive MRI contrast agents. Curr Opin Chem Biol 2021; 61:154-169. [PMID: 33706246 DOI: 10.1016/j.cbpa.2021.01.013] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Revised: 01/07/2021] [Accepted: 01/31/2021] [Indexed: 12/30/2022]
Abstract
Interactions of paramagnetic metal complexes with their biological environment can modulate their magnetic resonance imaging (MRI) contrast-enhancing properties in different ways, and this has been widely exploited to create responsive probes that can provide biochemical information. We survey progress in two rapidly growing areas: the MRI detection of biologically important metal ions, such as calcium, zinc, and copper, and the use of transition metal complexes as smart MRI agents. In both fields, new imaging technologies, which take advantage of other nuclei (19F) and/or paramagnetic contact shift effects, emerge beyond classical, relaxation-based applications. Most importantly, in vivo imaging is gaining ground, and the promise of molecular MRI is becoming reality, at least for preclinical research.
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Affiliation(s)
- Célia S Bonnet
- Centre de Biophysique Moléculaire, CNRS UPR 4301, Rue Charles Sadron, Orléans, 45071, France
| | - Éva Tóth
- Centre de Biophysique Moléculaire, CNRS UPR 4301, Rue Charles Sadron, Orléans, 45071, France.
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6
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Joshi P, Ali SR, Rishu, Bhardwaj VK. Fluorescence modulation of naphthalene containing salicyl hydrazide-based receptor through aggregation-induced emission enhancement approach: Dual detection of lanthanum and cyanide ions in semi-aqueous medium. LUMINESCENCE 2021; 36:986-994. [PMID: 33590665 DOI: 10.1002/bio.4025] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Revised: 01/31/2021] [Accepted: 02/02/2021] [Indexed: 11/08/2022]
Abstract
The sensing activity of naphthalene containing salicyl hydrazide-based fluorescence receptor has been improved through aggregation-induced enhanced emission mechanism approach in semi-aqueous medium. The receptor has been found to be selective toward La3+ with approximately 70-fold fluorescence enhancement due to a combined effect of keto-enol tautomerism inhibition and chelation enhanced fluorescence with a detection limit of 3.91 × 10-6 M. In addition, the receptor is also able to sense CN- with a detection limit of 3.55 × 10-6 M via deprotonation effect, justifying its multiple analyte sensing behaviour. Hence, the current analytical methodology improves the sensing activity of the probe and also provides a greener alternative for La3+ and CN- detection.
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Affiliation(s)
- Pooja Joshi
- Department of Chemistry, Indian Institute of Technology Ropar, Rupnagar, India.,Department of Chemistry, D.S.B. Campus, Kumaun University, Nainital, India
| | - Shah Raj Ali
- Department of Chemistry, D.S.B. Campus, Kumaun University, Nainital, India
| | - Rishu
- Department of Chemistry, Mehr Chand Mahajan DAV College for Women, Chandigarh, India
| | - Vimal K Bhardwaj
- Department of Chemistry, Indian Institute of Technology Ropar, Rupnagar, India.,Department of Chemistry, Dr B R Ambedkar National Institute of Technology, Jalandhar, India
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7
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Wu L, Zhou M, Liu C, Chen X, Chen Y. Double-enzymes-mediated Fe 2+/Fe 3+ conversion as magnetic relaxation switch for pesticide residues sensing. JOURNAL OF HAZARDOUS MATERIALS 2021; 403:123619. [PMID: 32827859 DOI: 10.1016/j.jhazmat.2020.123619] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2020] [Revised: 07/20/2020] [Accepted: 07/27/2020] [Indexed: 05/25/2023]
Abstract
It is a great challenge to develop a newly rapid and accurate detection method for pesticide residues. In this work, based on acetylcholinesterase (AChE) and choline oxidase (CHO), a double-enzymes-mediated Fe2+/Fe3+ conversion as magnetic relaxation switch was explored for the measurement of acetamiprid residue. In the double-enzymes reactions, acetylcholine chloride (ACh) can be catalyzed to produce choline by AChE, which is successively hydrolyzed to betaine and hydrogen peroxide (H2O2) by CHO. According to the enzyme inhibition principle, AChE activity will be inactivated in the presence of acetamiprid, thus leading to the less production of H2O2. Wherein, Fe2+, ACh, AChE and CHO were optimized as the reaction substrates. In the reaction system, acetamiprid can be reflected by the transverse relaxation time (T2) that related with H2O2 mediated Fe2+ variations, which was further developed as an enzyme cascade amplification method. The detection linear range is 0.01∼1000 μg mL-1 (R2 = 0.99), and the limit of detection (LOD) is 2.66 ng mL-1 (S/N = 3, n = 3), behaving a 335-fold improvement in LOD than that of traditional enzyme inhibition method (0.89 μg mL-1). This method can realize "one-step mixing" detection of acetamiprid, which makes it a promising analytical tool for monitoring pesticide residue in complicated samples.
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Affiliation(s)
- Long Wu
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan, 430070, PR China; National "111" Center for Cellular Regulation and Molecular Pharmaceutics, Key Laboratory of Fermentation Engineering (Ministry of Education), College of Bioengineering and Food, Hubei University of Technology, Wuhan, Hubei, 430068, PR China
| | - Min Zhou
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan, 430070, PR China; National "111" Center for Cellular Regulation and Molecular Pharmaceutics, Key Laboratory of Fermentation Engineering (Ministry of Education), College of Bioengineering and Food, Hubei University of Technology, Wuhan, Hubei, 430068, PR China
| | - Chen Liu
- Leibniz Institute of Photonic Technology, Jena-Member of the research alliance Leibniz Health Technologies, Institute of Physical Chemistry and Abbe Center of Photonics, Friedrich Schiller University, Albert-Einstein-Street 9, 07745, Jena, Germany; Leibniz Institute of Photonic Technology Jena - Member of the research alliance, Leibniz Health Technologies, Albert-Einstein-Str. 9, 07745, Jena, Germany
| | - Xiaoqiang Chen
- National "111" Center for Cellular Regulation and Molecular Pharmaceutics, Key Laboratory of Fermentation Engineering (Ministry of Education), College of Bioengineering and Food, Hubei University of Technology, Wuhan, Hubei, 430068, PR China.
| | - Yiping Chen
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan, 430070, PR China.
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8
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Rosen T, Nolan EM. Metal Sequestration and Antimicrobial Activity of Human Calprotectin Are pH-Dependent. Biochemistry 2020; 59:2468-2478. [PMID: 32491853 DOI: 10.1021/acs.biochem.0c00359] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Human calprotectin (CP, S100A8/S100A9 oligomer) is an abundant innate immune protein that sequesters transition metal ions in the extracellular space to limit nutrient availability and the growth of invading microbial pathogens. Our current understanding of the metal-sequestering ability of CP is based on biochemical and functional studies performed at neutral or near-neutral pH. Nevertheless, CP can be present throughout the human body and is expressed at infection and inflammation sites that tend to be acidic. Here, we evaluate the metal binding and antimicrobial properties of CP in the pH range of 5.0-7.0. We show that Ca(II)-induced tetramerization, an important process for the extracellular functions of CP, is perturbed by acidic conditions. Moreover, a low pH impairs the antimicrobial activity of CP against some bacterial pathogens, including Staphylococcus aureus and Salmonella enterica serovar Typhimurium. At a mildly acidic pH, CP loses the ability to deplete Mn from microbial growth medium, indicating that Mn(II) sequestration is attenuated under acidic conditions. Evaluation of the Mn(II) binding properties of CP at pH 5.0-7.0 indicates that mildly acidic conditions decrease the Mn(II) binding affinity of the His6 site. Lastly, CP is less effective at preventing capture of Mn(II) by the bacterial solute-binding proteins MntC and PsaA at low pH. These results indicate that acidic conditions compromise the ability of CP to sequester Mn(II) and starve microbial pathogens of this nutrient. This work highlights the importance of considering the local pH of biological sites when describing the interplay between CP and microbes in host-pathogen interactions.
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Affiliation(s)
- Tomer Rosen
- Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Elizabeth M Nolan
- Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
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9
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Florès O, Pliquett J, Abad Galan L, Lescure R, Denat F, Maury O, Pallier A, Bellaye PS, Collin B, Même S, Bonnet CS, Bodio E, Goze C. Aza-BODIPY Platform: Toward an Efficient Water-Soluble Bimodal Imaging Probe for MRI and Near-Infrared Fluorescence. Inorg Chem 2020; 59:1306-1314. [DOI: 10.1021/acs.inorgchem.9b03017] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Océane Florès
- CNRS, Université Bourgogne Franche-Comté, ICMUB UMR6302 − CNRS, F-21000 Dijon, France
| | - Jacques Pliquett
- CNRS, Université Bourgogne Franche-Comté, ICMUB UMR6302 − CNRS, F-21000 Dijon, France
| | - Laura Abad Galan
- Université Lyon, Ecole Normale Supérieure de Lyon, CNRS, Université Claude Bernard Lyon 1, Laboratoire de Chimie, UMR 5182, F-69342 Lyon, France
| | - Robin Lescure
- CNRS, Université Bourgogne Franche-Comté, ICMUB UMR6302 − CNRS, F-21000 Dijon, France
| | - Franck Denat
- CNRS, Université Bourgogne Franche-Comté, ICMUB UMR6302 − CNRS, F-21000 Dijon, France
| | - Olivier Maury
- Université Lyon, Ecole Normale Supérieure de Lyon, CNRS, Université Claude Bernard Lyon 1, Laboratoire de Chimie, UMR 5182, F-69342 Lyon, France
| | - Agnès Pallier
- Centre de Biophysique Moléculaire, CNRS, Université d’Orléans, Rue Charles Sadron, 45071 Orléans Cedex 2, France
| | - Pierre-Simon Bellaye
- Centre Georges François Leclerc, Service de Médecine Nucléaire (Plateforme d’Imagerie et de Radiothérapie Précliniques), 1 rue Professeur Marion, BP77980, 21079 Dijon Cedex, France
| | - Bertrand Collin
- CNRS, Université Bourgogne Franche-Comté, ICMUB UMR6302 − CNRS, F-21000 Dijon, France
| | - Sandra Même
- Centre de Biophysique Moléculaire, CNRS, Université d’Orléans, Rue Charles Sadron, 45071 Orléans Cedex 2, France
| | - Célia S. Bonnet
- Centre de Biophysique Moléculaire, CNRS, Université d’Orléans, Rue Charles Sadron, 45071 Orléans Cedex 2, France
| | - Ewen Bodio
- CNRS, Université Bourgogne Franche-Comté, ICMUB UMR6302 − CNRS, F-21000 Dijon, France
| | - Christine Goze
- CNRS, Université Bourgogne Franche-Comté, ICMUB UMR6302 − CNRS, F-21000 Dijon, France
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10
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Li H, Meade TJ. Molecular Magnetic Resonance Imaging with Gd(III)-Based Contrast Agents: Challenges and Key Advances. J Am Chem Soc 2019; 141:17025-17041. [PMID: 31593630 DOI: 10.1021/jacs.9b09149] [Citation(s) in RCA: 136] [Impact Index Per Article: 27.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
In an era of personalized medicine, the clinical community has become increasingly focused on understanding diseases at the cellular and molecular levels. Magnetic resonance imaging (MRI) is a powerful imaging modality for acquiring anatomical and functional information. However, it has limited applications in the field of molecular imaging due to its low sensitivity. To expand the capability of MRI to encompass molecular imaging applications, we introduced bioresponsive Gd(III)-based magnetic resonance contrast agents (GBCAs) in 1997. Since that time, many research groups across the globe have developed new examples of bioresponsive GBCAs. These contrast agents have shown great promise for visualizing several biochemical processes, such as gene expression, neuronal signaling, and hormone secretion. They are designed to be conditionally retained, or activated, in vivo in response to specific biochemical events of interest. As a result, an observed MR signal change can serve as a read-out for molecular events. A significant challenge for these probes is how to utilize them for noninvasive diagnostic and theranostic applications. This Perspective focuses on the design strategies that underlie bioresponsive probes, and describes the key advances made in recent years that are facilitating their application in vivo and ultimately in clinical translation. While the field of bioresponsive agents is embryonic, it is clear that many solutions to the experimental and clinical radiologic problems of today will be overcome by the probes of tomorrow.
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Affiliation(s)
- Hao Li
- Departments of Chemistry, Molecular Biosciences, Neurobiology, and Radiology Northwestern University , Evanston , Illinois 60208 , United States
| | - Thomas J Meade
- Departments of Chemistry, Molecular Biosciences, Neurobiology, and Radiology Northwestern University , Evanston , Illinois 60208 , United States
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11
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Hadley RC, Gagnon DM, Ozarowski A, Britt RD, Nolan EM. Murine Calprotectin Coordinates Mn(II) at a Hexahistidine Site with Ca(II)-Dependent Affinity. Inorg Chem 2019; 58:13578-13590. [PMID: 31145609 DOI: 10.1021/acs.inorgchem.9b00763] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Manganese is an essential metal ion that bacterial pathogens need to acquire from the vertebrate host during infection. In the mammalian nutritional immunity strategy to combat bacterial infection, the host restricts bacterial access to Mn(II) by sequestering this metal nutrient using the protein calprotectin (CP). The role of murine calprotectin (mCP) in Mn(II) sequestration has been demonstrated in vivo, but the molecular basis of this function has not been evaluated. Herein, biochemical assays and electron paramagnetic resonance (EPR) spectroscopy are employed to characterize the Mn(II) binding properties of mCP. We report that mCP has one high-affinity Mn(II) binding site. This site is a His6 site composed of His17 and His27 of mS100A8 and His92, His97, His105, and His107 of mS100A9. Similar to the human ortholog (hCP), Ca(II) binding to the EF-hand domains of mCP enhances the Mn(II) affinity of the protein; however, this effect requires ≈10-fold more Ca(II) than was previously observed for hCP. Mn(II) coordination to the His6 site also promotes self-association of two mCP heterodimers to form a heterotetramer. Low-temperature X-band EPR spectroscopy revealed a nearly octahedral Mn(II) coordination sphere for the Mn(II)-His6 site characterized by the zero-field splitting parameters D = 525 MHz and E/D = 0.3. Further electron-nuclear double resonance studies with globally 15N-labeled mCP provided hyperfine couplings from the coordinating ε-nitrogen atoms of the His ligands (aiso = 4.3 MHz) as well as the distal δ-nitrogen atoms (aiso = 0.25 MHz). Mn(II) competition assays between mCP and two bacterial Mn(II) solute-binding proteins, staphylococcal MntC and streptococcal PsaA, showed that mCP outcompetes both proteins for Mn(II) under conditions of excess Ca(II). In total, this work provides the first coordination chemistry study of mCP and reveals striking similarities in the Mn(II) coordination sphere as well as notable differences in the Ca(II) sensitivity and oligomerization behavior between hCP and mCP.
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Affiliation(s)
- Rose C Hadley
- Department of Chemistry , Massachusetts Institute of Technology (MIT) , Cambridge , Massachusetts 02139 , United States
| | - Derek M Gagnon
- Department of Chemistry , University of California, Davis , Davis , California 95616 , United States
| | - Andrew Ozarowski
- National High Magnetic Field Laboratory , Florida State University , Tallahassee , Florida 32310 , United States
| | - R David Britt
- Department of Chemistry , University of California, Davis , Davis , California 95616 , United States
| | - Elizabeth M Nolan
- Department of Chemistry , Massachusetts Institute of Technology (MIT) , Cambridge , Massachusetts 02139 , United States
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12
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Li H, Parigi G, Luchinat C, Meade TJ. Bimodal Fluorescence-Magnetic Resonance Contrast Agent for Apoptosis Imaging. J Am Chem Soc 2019; 141:6224-6233. [PMID: 30919628 PMCID: PMC6939894 DOI: 10.1021/jacs.8b13376] [Citation(s) in RCA: 77] [Impact Index Per Article: 15.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Effective cancer therapy largely depends on inducing apoptosis in cancer cells via chemotherapy and/or radiation. Monitoring apoptosis in real-time provides invaluable information for evaluating cancer therapy response and screening preclinical anticancer drugs. In this work, we describe the design, synthesis, characterization, and in vitro evaluation of caspase probe 1 (CP1), a bimodal fluorescence-magnetic resonance (FL-MR) probe that exhibits simultaneous FL-MR turn-on response to caspase-3/7. Both caspases exist as inactive zymogens in normal cells but are activated during apoptosis and are unique biomarkers for this process. CP1 has three distinct components: a DOTA-Gd(III) chelate that provides the MR signal enhancement, tetraphenylethylene as the aggregation induced emission luminogen (AIEgen), and DEVD peptide which is a substrate for caspase-3/7. In response to caspase-3/7, the water-soluble peptide DEVD is cleaved and the remaining Gd(III)-AIEgen (Gad-AIE) conjugate aggregates leading to increased FL-MR signals. CP1 exhibited sensitive and selective dual FL-MR turn-on response to caspase-3/7 in vitro and was successfully tested by fluorescence imaging of apoptotic cells. Remarkably, we were able to use the FL response of CP1 to quantify the exact concentrations of inactive and active agents and accurately predict the MR signal in vitro. We have demonstrated that the aggregation-driven FL-MR probe design is a unique method for MR signal quantification. This probe design platform can be adapted for a variety of different imaging targets, opening new and exciting avenues for multimodal molecular imaging.
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Affiliation(s)
- Hao Li
- Departments of Chemistry, Molecular Biosciences, Neurobiology, and Radiology , Northwestern University , Evanston , Illinois 60208 , United States
| | - Giacomo Parigi
- Department of Chemistry and Magnetic Resonance Center (CERM) , University of Florence, and Consorzio Interuniversitario Risonanze Magnetiche di Metalloproteine (CIRMMP) , Via L. Sacconi 6 , 50019 Sesto Fiorentino , Italy
| | - Claudio Luchinat
- Department of Chemistry and Magnetic Resonance Center (CERM) , University of Florence, and Consorzio Interuniversitario Risonanze Magnetiche di Metalloproteine (CIRMMP) , Via L. Sacconi 6 , 50019 Sesto Fiorentino , Italy
| | - Thomas J Meade
- Departments of Chemistry, Molecular Biosciences, Neurobiology, and Radiology , Northwestern University , Evanston , Illinois 60208 , United States
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Tian X, Hussain S, de Pace C, Ruiz-Pérez L, Battaglia G. Zn II Complexes for Bioimaging and Correlated Applications. Chem Asian J 2019; 14:509-526. [PMID: 30716209 DOI: 10.1002/asia.201801437] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2018] [Revised: 12/31/2018] [Indexed: 11/09/2022]
Abstract
Zinc is a biocompatible element that exists as the second most abundant transition metal ion and an indispensable trace element in the human body. Compared to traditional metal-organic complexes systems, d10 metal ZnII complexes not only exhibit a large Stokes shift and good photon stability but also possess strong emission and low cytotoxicity with a relatively small molecular weight. The use of ZnII complexes has emerged in the last decade as a versatile and convenient tool for numerous biological applications, including bioimaging, molecular and protein recognition, as well as photodynamic therapy. Herein, we review recent developments involving ZnII metal complexes applied as specific subcellular compartment imaging probes and their correlated utilizations.
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Affiliation(s)
- Xiaohe Tian
- School of life science, Anhui University, Hefei, 230039, P.R. China
| | - Sajid Hussain
- School of life science, Anhui University, Hefei, 230039, P.R. China.,School of Applied Sciences and Humanities (NUSASH), National University of Technology, Sector I-12, Islamabad, Pakistan
| | - Cesare de Pace
- Department of Chemistry, University College London, London, WC1H 0AJ, UK
| | - Lorena Ruiz-Pérez
- Department of Chemistry, University College London, London, WC1H 0AJ, UK
| | - Giuseppe Battaglia
- School of life science, Anhui University, Hefei, 230039, P.R. China.,Department of Chemistry, University College London, London, WC1H 0AJ, UK
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14
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Tian X, Xiao L, Shen Y, Luo L, Zhang G, Zhang Q, Li D, Wu J, Wu Z, Zhang Z, Tian Y. A combination of super-resolution fluorescence and magnetic resonance imaging using a Mn(ii) compound. Inorg Chem Front 2019. [DOI: 10.1039/c9qi00895k] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Two manganese(ii) complexes supported by terpyridyl-based ligands were synthesized; they showed an enhanced fluorescence, including a two-photon signal and magnetic contrast, and were used in multi-modal imaging.
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15
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Deng Y, Xu A, Yu Y, Fu C, Liang G. Biomedical Applications of Fluorescent and Magnetic Resonance Imaging Dual‐Modality Probes. Chembiochem 2018; 20:499-510. [DOI: 10.1002/cbic.201800450] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2018] [Indexed: 12/12/2022]
Affiliation(s)
- Yun Deng
- Institute for Interdisciplinary & Research Key Laboratory of, Optoelectronic Chemical Materials and Devices of Ministry of EducationJianghan University Wuhan 430056 P.R. China
| | - Aifei Xu
- School of Tobacco Science and EngineeringZhengzhou University of Light Industry Zhengzhou 450002 P.R. China
| | - Yanhua Yu
- Institute for Interdisciplinary & Research Key Laboratory of, Optoelectronic Chemical Materials and Devices of Ministry of EducationJianghan University Wuhan 430056 P.R. China
| | - Cheng Fu
- Institute for Interdisciplinary & Research Key Laboratory of, Optoelectronic Chemical Materials and Devices of Ministry of EducationJianghan University Wuhan 430056 P.R. China
| | - Gaolin Liang
- CAS Key Laboratory of Soft Matter ChemistryDepartment of ChemistryUniversity of Science and Technology of China Hefei 230026 P.R. China
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16
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Hadley RC, Gagnon DM, Brophy MB, Gu Y, Nakashige TG, Britt RD, Nolan EM. Biochemical and Spectroscopic Observation of Mn(II) Sequestration from Bacterial Mn(II) Transport Machinery by Calprotectin. J Am Chem Soc 2018; 140:110-113. [PMID: 29211955 PMCID: PMC5762273 DOI: 10.1021/jacs.7b11207] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Human calprotectin (CP, S100A8/S100A9 oligomer) is a metal-sequestering host-defense protein that prevents bacterial acquisition of Mn(II). In this work, we investigate Mn(II) competition between CP and two solute-binding proteins that Staphylococcus aureus and Streptococcus pneumoniae, Gram-positive bacterial pathogens of significant clinical concern, use to obtain Mn(II) when infecting a host. Biochemical and electron paramagnetic resonance (EPR) spectroscopic analyses demonstrate that CP outcompetes staphylococcal MntC and streptococcal PsaA for Mn(II). This behavior requires the presence of excess Ca(II) ions, which enhance the Mn(II) affinity of CP. This report presents new spectroscopic evaluation of two Mn(II) proteins important for bacterial pathogenesis, direct observation of Mn(II) sequestration from bacterial Mn(II) acquisition proteins by CP, and molecular insight into the extracellular battle for metal nutrients that occurs during infection.
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Affiliation(s)
- Rose C. Hadley
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, MA 02139, United States
| | - Derek M. Gagnon
- Department of Chemistry, University of California Davis, Davis, CA 95616, United States
| | - Megan Brunjes Brophy
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, MA 02139, United States
| | - Yu Gu
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, MA 02139, United States
| | - Toshiki G. Nakashige
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, MA 02139, United States
| | - R. David Britt
- Department of Chemistry, University of California Davis, Davis, CA 95616, United States
| | - Elizabeth M. Nolan
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, MA 02139, United States
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17
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Maity D, Hari N, Mohanta S. A Bis(Boronic Ester)-Based Fluorogenic and Chromogenic Sensor for F-and Cu2+. ChemistrySelect 2017. [DOI: 10.1002/slct.201700891] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Dinesh Maity
- Department of Chemistry, Inorganic Chemistry Section; University of Calcutta; Kolkata 700009 India
| | - Nairita Hari
- Department of Chemistry, Inorganic Chemistry Section; University of Calcutta; Kolkata 700009 India
| | - Sasankasekhar Mohanta
- Department of Chemistry, Inorganic Chemistry Section; University of Calcutta; Kolkata 700009 India
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18
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Nguyen HVT, Chen Q, Paletta JT, Harvey P, Jiang Y, Zhang H, Boska MD, Ottaviani MF, Jasanoff A, Rajca A, Johnson JA. Nitroxide-Based Macromolecular Contrast Agents with Unprecedented Transverse Relaxivity and Stability for Magnetic Resonance Imaging of Tumors. ACS CENTRAL SCIENCE 2017; 3:800-811. [PMID: 28776023 PMCID: PMC5532724 DOI: 10.1021/acscentsci.7b00253] [Citation(s) in RCA: 104] [Impact Index Per Article: 14.9] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2017] [Indexed: 05/18/2023]
Abstract
Metal-free magnetic resonance imaging (MRI) agents could overcome the established toxicity associated with metal-based agents in some patient populations and enable new modes of functional MRI in vivo. Herein, we report nitroxide-functionalized brush-arm star polymer organic radical contrast agents (BASP-ORCAs) that overcome the low contrast and poor in vivo stability associated with nitroxide-based MRI contrast agents. As a consequence of their unique nanoarchitectures, BASP-ORCAs possess per-nitroxide transverse relaxivities up to ∼44-fold greater than common nitroxides, exceptional stability in highly reducing environments, and low toxicity. These features combine to provide for accumulation of a sufficient concentration of BASP-ORCA in murine subcutaneous tumors up to 20 h following systemic administration such that MRI contrast on par with metal-based agents is observed. BASP-ORCAs are, to our knowledge, the first nitroxide MRI contrast agents capable of tumor imaging over long time periods using clinical high-field 1H MRI techniques.
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Affiliation(s)
- Hung V.-T. Nguyen
- Department
of Chemistry, Department of Biological Engineering, Department of Brain
and Cognitive Sciences, and Department of Nuclear Science and Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Qixian Chen
- Department
of Chemistry, Department of Biological Engineering, Department of Brain
and Cognitive Sciences, and Department of Nuclear Science and Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Joseph T. Paletta
- Department
of Chemistry, University of Nebraska, Lincoln, Nebraska 68588, United States
| | - Peter Harvey
- Department
of Chemistry, Department of Biological Engineering, Department of Brain
and Cognitive Sciences, and Department of Nuclear Science and Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Yivan Jiang
- Department
of Chemistry, Department of Biological Engineering, Department of Brain
and Cognitive Sciences, and Department of Nuclear Science and Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Hui Zhang
- Department
of Chemistry, University of Nebraska, Lincoln, Nebraska 68588, United States
| | - Michael D. Boska
- Department
of Radiology, University of Nebraska Medical
Center, Omaha, Nebraska 68198, United
States
| | | | - Alan Jasanoff
- Department
of Chemistry, Department of Biological Engineering, Department of Brain
and Cognitive Sciences, and Department of Nuclear Science and Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Andrzej Rajca
- Department
of Chemistry, University of Nebraska, Lincoln, Nebraska 68588, United States
| | - Jeremiah A. Johnson
- Department
of Chemistry, Department of Biological Engineering, Department of Brain
and Cognitive Sciences, and Department of Nuclear Science and Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
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19
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Pathak U, Mathur S, Pandey LK. A Complementary Metal-Displacement Solid-Phase Extraction Strategy for the Sensitive and Selective Colorimetric Detection of Hg 2+. ChemistrySelect 2017. [DOI: 10.1002/slct.201700790] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Uma Pathak
- Synthetic Chemistry Division; Defence R & D Establishment; Jhansi Road Gwalior- 474002 (M.P. India
| | - Sweta Mathur
- Synthetic Chemistry Division; Defence R & D Establishment; Jhansi Road Gwalior- 474002 (M.P. India
| | - Lokesh Kumar Pandey
- Synthetic Chemistry Division; Defence R & D Establishment; Jhansi Road Gwalior- 474002 (M.P. India
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20
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Fischbach J, Loh Q, Bier FF, Lim TS, Frohme M, Glökler J. Alizarin Red S for Online Pyrophosphate Detection Identified by a Rapid Screening Method. Sci Rep 2017; 7:45085. [PMID: 28338022 PMCID: PMC5364467 DOI: 10.1038/srep45085] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2016] [Accepted: 02/20/2017] [Indexed: 12/29/2022] Open
Abstract
We identified Alizarin Red S and other well known fluorescent dyes useful for the online detection of pyrophosphate in enzymatic assays, including the loop mediated isothermal amplification (LAMP) and polymerase chain reaction (PCR) assays. An iterative screening was used for a selected set of compounds to first secure enzyme compatibility, evaluate inorganic pyrophosphate sensitivity in the presence of manganese as quencher and optimize conditions for an online detection. Of the selected dyes, the inexpensive alizarin red S was found to selectively detect pyrophosphate under LAMP and PCR conditions and is superior with respect to its defined red-shifted spectrum, long shelf life and low toxicity. In addition, the newly identified properties may also be useful in other enzymatic assays which do not generate nucleic acids but are based on inorganic pyrophosphate. Finally, we propose that our screening method may provide a blueprint for rapid screening of compounds for detecting inorganic pyrophosphate.
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Affiliation(s)
- Jens Fischbach
- Division Molecular Biotechnology and Functional Genomics, Technical University of Applied Sciences Wildau, Hochschulring 1, 15745 Wildau, Germany
| | - Qiuting Loh
- Institute for Research in Molecular Medicine, Universiti Sains Malaysia, 11800 Penang, Malaysia
| | - Frank F. Bier
- Institute for Biochemistry and Biology, University of Potsdam, Karl-Liebknecht-Straße 24-25, 14476 Potsdam, Germany
| | - Theam Soon Lim
- Institute for Research in Molecular Medicine, Universiti Sains Malaysia, 11800 Penang, Malaysia
- Analytical Biochemistry Research Centre, Universiti Sains Malaysia, 11800 Penang, Malaysia
| | - Marcus Frohme
- Division Molecular Biotechnology and Functional Genomics, Technical University of Applied Sciences Wildau, Hochschulring 1, 15745 Wildau, Germany
| | - Jörn Glökler
- Division Molecular Biotechnology and Functional Genomics, Technical University of Applied Sciences Wildau, Hochschulring 1, 15745 Wildau, Germany
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21
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Eling CJ, Price TW, Marshall ARL, Narda Viscomi F, Robinson P, Firth G, Adawi AM, Bouillard JSG, Stasiuk GJ. A Dual-Modal SERS/Fluorescence Gold Nanoparticle Probe for Mitochondrial Imaging. Chempluschem 2017; 82:674-680. [DOI: 10.1002/cplu.201600593] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2016] [Revised: 01/09/2017] [Indexed: 12/19/2022]
Affiliation(s)
- Charlotte J. Eling
- School of Life Sciences, Biomedical Section; University of Hull; Cottingham Road Hull HU6 7RX United Kingdom
- School of Mathematics and Physical Sciences; Department of Physics and Mathematics; University of Hull; United Kingdom
| | - Thomas W. Price
- School of Life Sciences, Biomedical Section; University of Hull; Cottingham Road Hull HU6 7RX United Kingdom
| | - Addison R. L. Marshall
- School of Mathematics and Physical Sciences; Department of Physics and Mathematics; University of Hull; United Kingdom
| | - Francesco Narda Viscomi
- School of Mathematics and Physical Sciences; Department of Physics and Mathematics; University of Hull; United Kingdom
| | - Peter Robinson
- School of Mathematics and Physical Sciences; Department of Physics and Mathematics; University of Hull; United Kingdom
| | - George Firth
- School of Life Sciences, Biomedical Section; University of Hull; Cottingham Road Hull HU6 7RX United Kingdom
| | - Ali M. Adawi
- School of Mathematics and Physical Sciences; Department of Physics and Mathematics; University of Hull; United Kingdom
- G. W. Gray Centre for Advanced Materials; University of Hull; United Kingdom
| | - Jean-Sebastien G. Bouillard
- School of Mathematics and Physical Sciences; Department of Physics and Mathematics; University of Hull; United Kingdom
- Department of Physics; King's College London; Strand London WC2R 2LS United Kingdom
- G. W. Gray Centre for Advanced Materials; University of Hull; United Kingdom
| | - Graeme J. Stasiuk
- School of Life Sciences, Biomedical Section; University of Hull; Cottingham Road Hull HU6 7RX United Kingdom
- Positron Emission Tomography Research Centre; University of Hull; United Kingdom
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22
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Tian X, Zhu Y, Zhang Q, Zhang R, Wu J, Tian Y. Halides tuning the subcellular-targeting in two-photon emissive complexes via different uptake mechanisms. Chem Commun (Camb) 2017; 53:7941-7944. [DOI: 10.1039/c7cc03640j] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
A simple and universal strategy by tuning halides (Cl, Br and I) in terpyridine–Zn(ii) complexes to achieve different subcellular organelle targeting via different cellular uptake mechanisms was reported.
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Affiliation(s)
- Xiaohe Tian
- School of Life Science
- Anhui University
- Hefei 230039
- P. R. China
- Department of Chemistry, Key Laboratory of Functional Inorganic Material Chemistry of Anhui Province
| | - Yingzhong Zhu
- Department of Chemistry, Key Laboratory of Functional Inorganic Material Chemistry of Anhui Province
- Anhui University
- Hefei 230039
- P. R. China
| | - Qiong Zhang
- Department of Chemistry, Key Laboratory of Functional Inorganic Material Chemistry of Anhui Province
- Anhui University
- Hefei 230039
- P. R. China
| | - Ruilong Zhang
- Department of Chemistry, Key Laboratory of Functional Inorganic Material Chemistry of Anhui Province
- Anhui University
- Hefei 230039
- P. R. China
| | - Jieying Wu
- Department of Chemistry, Key Laboratory of Functional Inorganic Material Chemistry of Anhui Province
- Anhui University
- Hefei 230039
- P. R. China
| | - Yupeng Tian
- Department of Chemistry, Key Laboratory of Functional Inorganic Material Chemistry of Anhui Province
- Anhui University
- Hefei 230039
- P. R. China
- State Key Laboratory of Coordination Chemistry
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23
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Dey G, Venkateswarulu M, Vivekananthan V, Pramanik A, Krishnan V, Koner RR. Sub-Picomolar Recognition of Cr3+ through Bioinspired Organic–Inorganic Ensemble Utilization. ACS Sens 2016. [DOI: 10.1021/acssensors.6b00046] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Gourab Dey
- School
of Basic Sciences and Advanced Materials Research Center, Indian Institute of Technology Mandi, Kamand, Mandi-175005, Himachal Pradesh, India
| | - Mangili Venkateswarulu
- School
of Basic Sciences and Advanced Materials Research Center, Indian Institute of Technology Mandi, Kamand, Mandi-175005, Himachal Pradesh, India
| | - Venkateswaran Vivekananthan
- School
of Basic Sciences and Advanced Materials Research Center, Indian Institute of Technology Mandi, Kamand, Mandi-175005, Himachal Pradesh, India
| | - Avijit Pramanik
- Department
of Chemistry and Biochemistry, Jackson State University, Jackson, Mississippi 39217, United States
| | - Venkata Krishnan
- School
of Basic Sciences and Advanced Materials Research Center, Indian Institute of Technology Mandi, Kamand, Mandi-175005, Himachal Pradesh, India
| | - Rik Rani Koner
- School
of Basic Sciences and Advanced Materials Research Center, Indian Institute of Technology Mandi, Kamand, Mandi-175005, Himachal Pradesh, India
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24
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Tanaka T, Nishiura Y, Araki R, Saido T, Abe R, Aoki S. 11B NMR Probes of Copper(II): Finding and Implications of the Cu2+-Promoted Decomposition ofortho-Carborane Derivatives. Eur J Inorg Chem 2016. [DOI: 10.1002/ejic.201600117] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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25
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Stephan JR, Nolan EM. Calcium-induced Tetramerization and Zinc Chelation Shield Human Calprotectin from Degradation by Host and Bacterial Extracellular Proteases. Chem Sci 2016; 7:1962-1975. [PMID: 26925211 PMCID: PMC4763987 DOI: 10.1039/c5sc03287c] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2015] [Accepted: 11/17/2015] [Indexed: 12/19/2022] Open
Abstract
Calprotectin (CP, S100A8/S100A9 oligomer, MRP-8/14 oligomer, calgranulins A and B) is a protein component of the innate immune system that contributes to the metal-withholding response by sequestering bioavailable transition metal ions at sites of infection. Human CP employs Ca(II) ions to modulate its quaternary structure, transition metal binding properties, and antimicrobial activity. In this work, we report the discovery that Ca(II)-induced self-association of human CP to afford heterotetramers protects the protein scaffold from degradation by host serine proteases. We present the design and characterization of two new human CP-Ser variants, S100A8(C42S)(I60E)/S100A9(C3S) and S100A8(C42S)(I60K)/S100A9(C3S), that exhibit defective tetramerization properties. Analytical size exclusion chromatography and analytical ultracentrifugation reveal that both variants, hereafter I60E and I60K, persist as heterodimers in the presence of Ca(II) only, and form heterotetramers in the presence of Mn(II) only and both Ca(II) and Mn(II). Coordination to Fe(II) also causes I60E and I60K to form heterotetramers in both the absence and presence of Ca(II). The Ca(II)-bound I60E and I60K heterodimers are readily degraded by trypsin, chymotrypsin and human neutrophil elastase, whereas the Ca(II)-bound CP-Ser heterotetramers and the Ca(II)- and Mn(II)-bound I60E and I60K heterotetramers are resistant to degradation by these host proteases. The staphylococcal extracellular protease GluC cuts the S100A8 subunit of CP-Ser at the C-terminal end of residue 89 to afford a ΔSKHE variant. The GluC cleavage site is in close proximity to the His3Asp metal-binding site, which coordinates Zn(II) with high affinity, and Zn(II) chelation protects the S100A8 subunit from GluC cleavage. Taken together, these results provide new insight into how Ca(II) ions and transition metals modulate the chemistry and biology of CP, and indicate that coordination to divalent cations transforms human CP into a protease-resistant form and enables innate immune function in the hostile conditions of an infection site.
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Affiliation(s)
- Jules R. Stephan
- Department of Chemistry , Massachusetts Institute of Technology , Cambridge , MA 02139 , USA . ; Fax: +1-617-324-0505 ; Tel: +1-617-452-2495
| | - Elizabeth M. Nolan
- Department of Chemistry , Massachusetts Institute of Technology , Cambridge , MA 02139 , USA . ; Fax: +1-617-324-0505 ; Tel: +1-617-452-2495
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26
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Brophy MB, Nolan EM. Manganese and microbial pathogenesis: sequestration by the Mammalian immune system and utilization by microorganisms. ACS Chem Biol 2015; 10:641-51. [PMID: 25594606 PMCID: PMC4372095 DOI: 10.1021/cb500792b] [Citation(s) in RCA: 67] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Bacterial and fungal pathogens cause a variety of infectious diseases and constitute a significant threat to public health. The human innate immune system represents the first line of defense against pathogenic microbes and employs a range of chemical artillery to combat these invaders. One important mechanism of innate immunity is the sequestration of metal ions that are essential nutrients. Manganese is one nutrient that is required for many pathogens to establish an infective lifestyle. This review summarizes recent advances in the role of manganese in the host-pathogen interaction and highlights Mn(II) sequestration by neutrophil calprotectin as well as how bacterial acquisition and utilization of manganese enables pathogenesis.
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Affiliation(s)
- Megan Brunjes Brophy
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Elizabeth M. Nolan
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
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27
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Rivas C, Stasiuk GJ, Sae-Heng M, J. Long N. Towards understanding the design of dual-modal MR/fluorescent probes to sense zinc ions. Dalton Trans 2015; 44:4976-85. [DOI: 10.1039/c4dt02981j] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A series of new gadolinium complexes have been synthesised to test the design of dual-modal probes that can display a change in fluorescence or relaxivity response upon zinc binding. By an iterative change in parameters of the probes, the compounds give insight into the design protocols required for successful imaging of zinc ions.
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Affiliation(s)
- Charlotte Rivas
- Department of Chemistry
- Imperial College London
- South Kensington Campus
- London
- UK
| | - Graeme J. Stasiuk
- Department of Chemistry
- Imperial College London
- South Kensington Campus
- London
- UK
| | - Myra Sae-Heng
- Department of Chemistry
- Imperial College London
- South Kensington Campus
- London
- UK
| | - Nicholas J. Long
- Department of Chemistry
- Imperial College London
- South Kensington Campus
- London
- UK
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28
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Bakthavatsalam S, Sarkar A, Rakshit A, Jain S, Kumar A, Datta A. Tuning macrocycles to design ‘turn-on’ fluorescence probes for manganese(ii) sensing in live cells. Chem Commun (Camb) 2015; 51:2605-8. [DOI: 10.1039/c4cc09542a] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
We report novel ‘turn-on’ fluorescence probes for imaging Mn2+ in live cells.
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Affiliation(s)
- Subha Bakthavatsalam
- Department of Chemical Sciences
- Tata Institute of Fundamental Research
- Colaba
- India
| | - Anindita Sarkar
- Department of Chemical Sciences
- Tata Institute of Fundamental Research
- Colaba
- India
| | - Ananya Rakshit
- Department of Chemical Sciences
- Tata Institute of Fundamental Research
- Colaba
- India
| | - Shubhi Jain
- Department of Chemical Sciences
- Tata Institute of Fundamental Research
- Colaba
- India
| | - Amit Kumar
- Department of Chemical Sciences
- Tata Institute of Fundamental Research
- Colaba
- India
| | - Ankona Datta
- Department of Chemical Sciences
- Tata Institute of Fundamental Research
- Colaba
- India
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29
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Cheng J, Zhou X, Xiang H. Fluorescent metal ion chemosensors via cation exchange reactions of complexes, quantum dots, and metal–organic frameworks. Analyst 2015; 140:7082-115. [DOI: 10.1039/c5an01398d] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Overview of a new paradigm in the design of fluorescent chemosensors for detecting metal ions via cation exchange reactions of complexes, quantum dots, and metal–organic frameworks.
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Affiliation(s)
| | - Xiangge Zhou
- College of Chemistry
- Sichuan University
- Chengdu
- China
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30
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Sowers MA, McCombs JR, Wang Y, Paletta JT, Morton SW, Dreaden EC, Boska MD, Ottaviani MF, Hammond PT, Rajca A, Johnson JA. Redox-responsive branched-bottlebrush polymers for in vivo MRI and fluorescence imaging. Nat Commun 2014; 5:5460. [PMID: 25403521 PMCID: PMC4269368 DOI: 10.1038/ncomms6460] [Citation(s) in RCA: 199] [Impact Index Per Article: 19.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2014] [Accepted: 10/02/2014] [Indexed: 12/15/2022] Open
Abstract
Stimuli-responsive multimodality imaging agents have broad potential in medical diagnostics. Herein, we report the development of a new class of branched-bottlebrush polymer dual-modality organic radical contrast agents--ORCAFluors--for combined magnetic resonance and near-infrared fluorescence imaging in vivo. These nitroxide radical-based nanostructures have longitudinal and transverse relaxation times that are on par with commonly used heavy-metal-based magnetic resonance imaging (MRI) contrast agents. Furthermore, these materials display a unique compensatory redox response: fluorescence is partially quenched by surrounding nitroxides in the native state; exposure to ascorbate or ascorbate/glutathione leads to nitroxide reduction and a concomitant 2- to 3.5-fold increase in fluorescence emission. This behaviour enables correlation of MRI contrast, fluorescence intensity and spin concentration with tissues known to possess high concentrations of ascorbate in mice. Our in vitro and in vivo results, along with our modular synthetic approach, make ORCAFluors a promising new platform for multimodality molecular imaging.
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Affiliation(s)
- Molly A Sowers
- Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, USA
| | - Jessica R McCombs
- Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, USA
| | - Ying Wang
- Department of Chemistry, University of Nebraska, Lincoln, Nebraska 68588, USA
| | - Joseph T Paletta
- Department of Chemistry, University of Nebraska, Lincoln, Nebraska 68588, USA
| | - Stephen W Morton
- Department of Chemical Engineering, Koch Institute for Integrative Cancer Research, Institute for Soldier Nanotechnologies, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, USA
| | - Erik C Dreaden
- Department of Chemical Engineering, Koch Institute for Integrative Cancer Research, Institute for Soldier Nanotechnologies, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, USA
| | - Michael D Boska
- Department of Radiology, University of Nebraska Medical Center, Omaha, Nebraska 68198
| | - M Francesca Ottaviani
- Department of Earth, Life and Environmental Sciences, University of Urbino, Loc. Corcicchia, 61029 Urbino, Italy
| | - Paula T Hammond
- Department of Chemical Engineering, Koch Institute for Integrative Cancer Research, Institute for Soldier Nanotechnologies, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, USA
| | - Andrzej Rajca
- Department of Chemistry, University of Nebraska, Lincoln, Nebraska 68588, USA
| | - Jeremiah A Johnson
- Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, USA
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31
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Li MM, Wang FW, Wang XY, Zhang TT, Xu Y, Xiao Y, Miao JY, Zhao BX. A new turn-on fluorescence probe for Zn(2+) in aqueous solution and imaging application in living cells. Anal Chim Acta 2014; 826:77-83. [PMID: 24793856 DOI: 10.1016/j.aca.2014.04.001] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2014] [Revised: 03/28/2014] [Accepted: 04/01/2014] [Indexed: 11/17/2022]
Abstract
We designed and synthesized a new pyrazoline-based turn-on fluorescence probe for Zn(2+) by the reaction of chalcone and thiosemicarbazide. The structure of the probe was characterized by IR, NMR and HRMS spectroscopy. The probe (L) exhibits high selectivity and sensitivity for detecting Zn(2+) in buffered EtOH/HEPES solution (EtOH/HEPES=1/1, pH 7.2) with 80-fold fluorescence enhancement, which is superior to previous reports. Job's plot analysis revealed 1:1 stoichiometry between probe L and Zn(2+) ions. The association constant estimated by the Benesi-Hildebrand method and the detection limit were 3.92×10(3)M(-1) and 5.2×10(-7)M, respectively. A proposed binding mode was confirmed by (1)H NMR titration experiments and density functional theory (DFT) calculations. The probe is cell-permeable and stable at the physiological pH range in biological systems. Because of its fast response to Zn(2+), the probe can monitor Zn(2+) in living cells. Moreover, the selective binding of L and Zn(2+) was reversible with the addition of EDTA in buffered EtOH/HEPES solution and Zn(2+) could be imaged in SH-SY5Y neuron cells.
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Affiliation(s)
- Meng-Meng Li
- Institute of Organic Chemistry, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, PR China
| | - Fang-Wu Wang
- Institute of Developmental Biology, School of Life Science, Shandong University, Jinan 250100, PR China
| | - Xiao-Yun Wang
- Chemical Technology Academy of Shandong Province, Jinan 250014, PR China
| | - Ting-Ting Zhang
- Institute of Organic Chemistry, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, PR China
| | - Yu Xu
- Institute of Organic Chemistry, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, PR China
| | - Yu Xiao
- Institute of Organic Chemistry, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, PR China
| | - Jun-Ying Miao
- Institute of Developmental Biology, School of Life Science, Shandong University, Jinan 250100, PR China
| | - Bao-Xiang Zhao
- Institute of Organic Chemistry, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, PR China.
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32
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Cheng J, Ma X, Zhang Y, Liu J, Zhou X, Xiang H. Optical chemosensors based on transmetalation of salen-based Schiff base complexes. Inorg Chem 2014; 53:3210-9. [PMID: 24559169 DOI: 10.1021/ic5000815] [Citation(s) in RCA: 99] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
We report our systematic studies of novel, simple, selective, and sensitive optical (both colorimetric and fluorescent) chemosensors for detecting Al(3+) based on transmetalation reactions (metal displacement or exchange reactions) of a series of K(I), Ca(II), Zn(II), Cu(II), and Pt(II) complexes containing different ligands of salen-based Schiff bases. Both the chemical structure of the salen ligand and the identity of the central metal ion have a tremendous impact on the sensing performance, which is mainly determined by the stability constant of the complex. Moreover, the selectivities of the salen-complex-based chemosensors are much better than those of the corresponding free salen ligands because of the shielding function of the filled-in metal ion in the complex. Therefore, the present work potentially provides a new and simple way to design optical probes via complex-based transmetalation reactions.
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Affiliation(s)
- Jinghui Cheng
- College of Chemistry, Sichuan University , Chengdu 610041, China
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33
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Huang Z, Zhang XA, Bosch M, Smith SJ, Lippard SJ. Tris(2-pyridylmethyl)amine (TPA) as a membrane-permeable chelator for interception of biological mobile zinc. Metallomics 2013; 5:648-55. [PMID: 23715510 DOI: 10.1039/c3mt00103b] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
We report the characterization of tris(2-pyridylmethyl)amine (TPA) as a membrane-permeable zinc chelator for intercepting biological mobile zinc. Compared to N,N,N',N'-tetrakis(2-pyridylmethyl)ethylenediamine (TPEN), TPA chelates zinc with faster kinetics in cuvettes, live cells, and brain slices. TPA also is generally less toxic than TPEN in cell culture. Mechanistic analysis indicates that these improvements arise from both the electronic and steric properties of TPA including weaker metal-binding affinity, lower pKa, and smaller size. These results demonstrate that TPA chelation is a valuable addition to the methodologies available for investigating mobile zinc in biology.
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Affiliation(s)
- Zhen Huang
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
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34
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Rivas C, Stasiuk G, Gallo J, Minuzzi F, Rutter GA, Long NJ. Lanthanide(III) complexes of rhodamine-DO3A conjugates as agents for dual-modal imaging. Inorg Chem 2013; 52:14284-93. [PMID: 24304423 PMCID: PMC4024063 DOI: 10.1021/ic402233g] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2013] [Indexed: 01/09/2023]
Abstract
Two novel dual-modal MRI/optical probes based on a rhodamine-DO3A conjugate have been prepared. The bis(aqua)gadolinium(III) complex Gd.L1 and mono(aqua)gadolinium(III) complex Gd.L2 behave as dual-modal imaging probes (r1 = 8.5 and 3.8 mM(-1) s(-1) for Gd.L1 and Gd.L2, respectively; λex = 560 nm and λem = 580 nm for both complexes). The rhodamine fragment is pH-sensitive, and upon lowering of the pH, an increase in fluorescence intensity is observed as the spirolactam ring opens to give the highly fluorescent form of the molecule. The ligands are bimodal when coordinated to Tb(III) ions, inducing fluorescence from both the lanthanide center and the rhodamine fluorophore, on two independent time frames. Confocal imaging experiments were carried out to establish the localization of Gd.L2 in HEK293 cells and primary mouse islet cells (∼70% insulin-containing β cells). Colocalization with MitoTracker Green demonstrated Gd.L2's ability to distinguish between tumor and healthy cells, with compartmentalization believed to be in the mitochondria. Gd.L2 was also evaluated as an MRI probe for imaging of tumors in BALB/c nude mice bearing M21 xenografts. A 36.5% decrease in T1 within the tumor was observed 30 min post injection, showing that Gd.L2 is preferentially up taken in the tumor. Gd.L2 is the first small-molecule MR/fluorescent dual-modal imaging agent to display an off-on pH switch upon its preferential uptake within the more acidic microenvironment of tumor cells.
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Affiliation(s)
- Charlotte Rivas
- Department
of Chemistry, Imperial College London, South Kensington, London SW7 2AZ, U.K.
| | - Graeme
J. Stasiuk
- Department
of Chemistry, Imperial College London, South Kensington, London SW7 2AZ, U.K.
| | - Juan Gallo
- Department
of Chemistry, Imperial College London, South Kensington, London SW7 2AZ, U.K.
| | - Florencia Minuzzi
- Section
of Cell Biology, Division of Diabetes, Endocrinology and Metabolism,
Department of Medicine, Imperial College
London, South Kensington, London SW7 2AZ, U.K.
| | - Guy A. Rutter
- Section
of Cell Biology, Division of Diabetes, Endocrinology and Metabolism,
Department of Medicine, Imperial College
London, South Kensington, London SW7 2AZ, U.K.
| | - Nicholas J. Long
- Department
of Chemistry, Imperial College London, South Kensington, London SW7 2AZ, U.K.
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35
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Brophy MB, Nakashige TG, Gaillard A, Nolan EM. Contributions of the S100A9 C-terminal tail to high-affinity Mn(II) chelation by the host-defense protein human calprotectin. J Am Chem Soc 2013; 135:17804-17. [PMID: 24245608 PMCID: PMC3892207 DOI: 10.1021/ja407147d] [Citation(s) in RCA: 61] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
Human calprotectin (CP) is an antimicrobial protein that coordinates Mn(II) with high affinity in a Ca(II)-dependent manner at an unusual histidine-rich site (site 2) formed at the S100A8/S100A9 dimer interface. We present a 16-member CP mutant family where mutations in the S100A9 C-terminal tail (residues 96-114) are employed to evaluate the contributions of this region, which houses three histidines and four acidic residues, to Mn(II) coordination at site 2. The results from analytical size-exclusion chromatography, Mn(II) competition titrations, and electron paramagnetic resonance spectroscopy establish that the C-terminal tail is essential for high-affinity Mn(II) coordination by CP in solution. The studies indicate that His103 and His105 (HXH motif) of the tail complete the Mn(II) coordination sphere in solution, affording an unprecedented biological His6 site. These solution studies are in agreement with a Mn(II)-CP crystal structure reported recently (Damo, S. M.; et al. Proc. Natl. Acad. Sci. U.S.A. 2013, 110, 3841). Remarkably high-affinity Mn(II) binding is retained when either H103 or H105 are mutated to Ala, when the HXH motif is shifted from positions 103-105 to 104-106, and when the human tail is substituted by the C-terminal tail of murine S100A9. Nevertheless, antibacterial activity assays employing human CP mutants reveal that the native disposition of His residues is important for conferring growth inhibition against Escherichia coli and Staphylococcus aureus. Within the S100 family, the S100A8/S100A9 heterooligomer is essential for providing high-affinity Mn(II) binding; the S100A7, S100A9(C3S), S100A12, and S100B homodimers do not exhibit such Mn(II)-binding capacity.
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Affiliation(s)
- Megan Brunjes Brophy
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, MA 02139
| | - Toshiki G. Nakashige
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, MA 02139
| | - Aleth Gaillard
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, MA 02139
| | - Elizabeth M. Nolan
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, MA 02139
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36
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Menéndez GO, López CS, Jares-Erijman EA, Spagnuolo CC. A Versatile Near-Infrared Asymmetric Tricarbocyanine for Zinc Ion Sensing in Water. Photochem Photobiol 2013; 89:1354-61. [DOI: 10.1111/php.12160] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2013] [Accepted: 08/12/2013] [Indexed: 01/30/2023]
Affiliation(s)
- Guillermo O. Menéndez
- CIHIDECAR-CONICET; Dpto. de Química Orgánica; Facultad de Ciencias Exactas y Naturales; Universidad de Buenos Aires; Ciudad Autónoma de Buenos Aires Argentina
| | - Cecilia Samaniego López
- CIHIDECAR-CONICET; Dpto. de Química Orgánica; Facultad de Ciencias Exactas y Naturales; Universidad de Buenos Aires; Ciudad Autónoma de Buenos Aires Argentina
| | - Elizabeth A. Jares-Erijman
- CIHIDECAR-CONICET; Dpto. de Química Orgánica; Facultad de Ciencias Exactas y Naturales; Universidad de Buenos Aires; Ciudad Autónoma de Buenos Aires Argentina
| | - Carla C. Spagnuolo
- CIHIDECAR-CONICET; Dpto. de Química Orgánica; Facultad de Ciencias Exactas y Naturales; Universidad de Buenos Aires; Ciudad Autónoma de Buenos Aires Argentina
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37
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Venkateswarulu M, Sinha S, Mathew J, Koner RR. Quencher displacement strategy for recognition of trivalent cations through ‘turn-on’ fluorescence signaling of an amino acid hybrid. Tetrahedron Lett 2013. [DOI: 10.1016/j.tetlet.2013.06.091] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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38
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Zheng ZB, Duan ZM, Ma YY, Wang KZ. Highly Sensitive and Selective Difunctional Ruthenium(II) Complex-Based Chemosensor for Dihydrogen Phosphate Anion and Ferrous Cation. Inorg Chem 2013; 52:2306-16. [DOI: 10.1021/ic301555r] [Citation(s) in RCA: 95] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Ze-Bao Zheng
- College of Chemistry, Beijing Normal University, and Beijing Key Laboratory
of Energy Conversion and Storage Materials, Beijing 100875, P.R. China
- College of Chemistry and Chemical
Engineering, Taishan University, Taian
271021, P.R. China
| | - Zhi-Ming Duan
- College of Chemistry, Beijing Normal University, and Beijing Key Laboratory
of Energy Conversion and Storage Materials, Beijing 100875, P.R. China
| | - Ying-Ying Ma
- College of Chemistry, Beijing Normal University, and Beijing Key Laboratory
of Energy Conversion and Storage Materials, Beijing 100875, P.R. China
| | - Ke-Zhi Wang
- College of Chemistry, Beijing Normal University, and Beijing Key Laboratory
of Energy Conversion and Storage Materials, Beijing 100875, P.R. China
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39
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Hayden JA, Brophy MB, Cunden LS, Nolan EM. High-affinity manganese coordination by human calprotectin is calcium-dependent and requires the histidine-rich site formed at the dimer interface. J Am Chem Soc 2013; 135:775-87. [PMID: 23276281 PMCID: PMC3575579 DOI: 10.1021/ja3096416] [Citation(s) in RCA: 109] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Calprotectin (CP) is a transition metal-chelating antimicrobial protein of the calcium-binding S100 family that is produced and released by neutrophils. It inhibits the growth of various pathogenic microorganisms by sequestering the transition metal ions manganese and zinc. In this work, we investigate the manganese-binding properties of CP. We demonstrate that the unusual His(4) motif (site 2) formed at the S100A8/S100A9 dimer interface is the site of high-affinity Mn(II) coordination. We identify a low-temperature Mn(II) spectroscopic signal for this site consistent with an octahedral Mn(II) coordination sphere with simulated zero-field splitting parameters D = 270 MHz and E/D = 0.30 (E = 81 MHz). This analysis, combined with studies of mutant proteins, suggests that four histidine residues (H17 and H27 of S100A8; H91 and H95 of S100A9) coordinate Mn(II) in addition to two as-yet unidentified ligands. The His(3)Asp motif (site 1), which is also formed at the S100A8/S100A9 dimer interface, does not provide a high-affinity Mn(II) binding site. Calcium binding to the EF-hand domains of CP increases the Mn(II) affinity of the His(4) site from the low-micromolar to the mid-nanomolar range. Metal-ion selectivity studies demonstrate that CP prefers to coordinate Zn(II) over Mn(II). Nevertheless, the specificity of Mn(II) for the His(4) site provides CP with the propensity to form mixed Zn:Mn:CP complexes where one Zn(II) ion occupies site 1 and one Mn(II) ion occupies site 2. These studies support the notion that CP responds to physiological calcium ion gradients to become a high-affinity transition metal ion chelator in the extracellular space where it inhibits microbial growth.
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Affiliation(s)
- Joshua A. Hayden
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, MA 02139
| | - Megan Brunjes Brophy
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, MA 02139
| | - Lisa S. Cunden
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, MA 02139
| | - Elizabeth M. Nolan
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, MA 02139
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40
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Radford RJ, Chyan W, Lippard SJ. Peptide-based Targeting of Fluorescent Zinc Sensors to the Plasma Membrane of Live Cells. Chem Sci 2013; 4:3080-3084. [PMID: 23878718 DOI: 10.1039/c3sc50974e] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Combining fluorescent zinc sensors with the facile syntheses and biological targeting capabilities of peptides, we created green- and blue-emitting probes that, (i) are readily prepared on the solid-phase, (ii) retain the photophysical and zinc-binding properties of the parent sensor, and (iii) can be directed to the extracellular side of plasma membranes in live cells for detection of mobile zinc.
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Affiliation(s)
- Robert J Radford
- Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139
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41
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Wang JN, Qi Q, Zhang L, Li SH. Turn-On Luminescent Sensing of Metal Cations via Quencher Displacement: Rational Design of a Highly Selective Chemosensor for Chromium(III). Inorg Chem 2012; 51:13103-7. [DOI: 10.1021/ic3009267] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jia-Ni Wang
- College of Chemistry and Chemical
Engineering and Key
Laboratory of Analytical Sciences, Xiamen University, Xiamen 361005, China
| | - Qiong Qi
- College of Chemistry and Chemical
Engineering and Key
Laboratory of Analytical Sciences, Xiamen University, Xiamen 361005, China
| | - Lei Zhang
- College of Chemistry and Chemical
Engineering and Key
Laboratory of Analytical Sciences, Xiamen University, Xiamen 361005, China
| | - Shun-Hua Li
- College of Chemistry and Chemical
Engineering and Key
Laboratory of Analytical Sciences, Xiamen University, Xiamen 361005, China
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42
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Gruppi F, Liang J, Bartelle BB, Royzen M, Turnbull DH, Canary JW. Supramolecular metal displacement allows on-fluorescence analysis of manganese(II) in living cells. Chem Commun (Camb) 2012; 48:10778-80. [PMID: 23023093 PMCID: PMC3722360 DOI: 10.1039/c2cc34742c] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Due to the importance of Mn(2+) ions in biological processes, it is of growing interest to develop protocols for analysis of Mn(2+) uptake and distribution in cells. A supramolecular metal displacement assay can provide ratiometric fluorescence detection of Mn(2+), allowing for quantitative and longitudinal analysis of Mn(2+) uptake in living cells.
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Affiliation(s)
- Francesca Gruppi
- Department of Chemistry, New York University, New York, NY 10003. Fax: 212-995-4367; Tel: 212-998-8422
| | - Jian Liang
- Department of Chemistry, New York University, New York, NY 10003. Fax: 212-995-4367; Tel: 212-998-8422
| | - Benjamin B. Bartelle
- Kimmel Center for Biology & Medicine at the Skirball Institute of Biomolecular Medicine, and Department of Radiology, New York University School of Medicine, New York, NY 10016
| | - Maksim Royzen
- Department of Chemistry, New York University, New York, NY 10003. Fax: 212-995-4367; Tel: 212-998-8422
| | - Daniel H. Turnbull
- Kimmel Center for Biology & Medicine at the Skirball Institute of Biomolecular Medicine, and Department of Radiology, New York University School of Medicine, New York, NY 10016
| | - James W. Canary
- Department of Chemistry, New York University, New York, NY 10003. Fax: 212-995-4367; Tel: 212-998-8422
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43
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Silva E, Bastos A, Neto M, Silva R, Zheludkevich M, Ferreira M, Oliveira F. Boron doped nanocrystalline diamond microelectrodes for the detection of Zn2+ and dissolved O2. Electrochim Acta 2012. [DOI: 10.1016/j.electacta.2012.05.074] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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44
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Zhang X, Jing X, Liu T, Han G, Li H, Duan C. Dual-Functional Gadolinium-Based Copper(II) Probe for Selective Magnetic Resonance Imaging and Fluorescence Sensing. Inorg Chem 2012; 51:2325-31. [DOI: 10.1021/ic202322f] [Citation(s) in RCA: 71] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Xiaolin Zhang
- State Key Laboratory of Fine
Chemicals, Dalian University of Technology, Dalian 116012, China
| | - Xu Jing
- State Key Laboratory of Fine
Chemicals, Dalian University of Technology, Dalian 116012, China
| | - Tao Liu
- State Key Laboratory of Fine
Chemicals, Dalian University of Technology, Dalian 116012, China
| | - Gang Han
- Department of Biochemistry
and Molecular Pharmacology, University of Massachusetts Medical School, Worcester, Massachusetts
01605, United States
| | - Huaqiang Li
- State Key Laboratory of Fine
Chemicals, Dalian University of Technology, Dalian 116012, China
| | - Chunying Duan
- State Key Laboratory of Fine
Chemicals, Dalian University of Technology, Dalian 116012, China
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45
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Bhaumik C, Maity D, Das S, Baitalik S. Synthesis, structural characterization, solvatochromism, and ion-binding studies of a ditopic receptor based on 2-(4-[2,2′: 6′,2′′]terpyridin-4′-yl-phenyl)-1H-phenanthro[9,10-d] imidazole (tpy-HImzphen) unit. RSC Adv 2012. [DOI: 10.1039/c2ra00023g] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
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46
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Mishra A, Gottschalk S, Engelmann J, Parker D. Responsive imaging probes for metabotropic glutamate receptors. Chem Sci 2012. [DOI: 10.1039/c1sc00418b] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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47
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Doura T, Nonaka H, Sando S. Atom arrangement strategy for designing a turn-on1H magnetic resonance probe: a dual activatable probe for multimodal detection of hypochlorite. Chem Commun (Camb) 2012; 48:1565-7. [DOI: 10.1039/c1cc12044a] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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48
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Dong D, Jing X, Zhang X, Hu X, Wu Y, Duan C. Gadolinium(III)–fluorescein complex as a dual modal probe for MRI and fluorescence zinc sensing. Tetrahedron 2012. [DOI: 10.1016/j.tet.2011.10.034] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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49
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Zheng T, Nolan EM. Siderophore-based detection of Fe(iii) and microbial pathogens. Metallomics 2012; 4:866-80. [DOI: 10.1039/c2mt20082a] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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50
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Abstract
With the aid of chemoselective sensors, fluorescence microscopy has emerged as an indispensable tool to visualize the distribution and dynamics of various biologically important molecules in live specimens. Motivated by our interest in understanding the chemistry and biology of mobile zinc underlying its physiological and pathological roles, over the past decade, our laboratory has developed an extensive library of zinc fluorescence probes. In this chapter, we provide essential information about our sensor toolbox in order to assist investigators interested to apply our constructs to study various aspects of mobile zinc biology. We illustrate their use with several examples of imaging both exogenous and endogenous mobile zinc in live cells and tissues using various versions of fluorescence microscopy, including confocal and two-photon microscopy.
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Affiliation(s)
- Zhen Huang
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA
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