101
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He C, Zhou H, Yang N, Niu N, Hussain E, Li Y, Yu C. A turn-on fluorescent BOPHY probe for Cu2+ ion detection. NEW J CHEM 2018. [DOI: 10.1039/c7nj03911e] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel D–π–A type fluorine–boron compound BOPHY-PTZ was synthesized and employed as a “turn on” fluorescent probe for the sensitive detection of Cu2+ ions.
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Affiliation(s)
- Chunhua He
- State Key Laboratory of Electroanalytical Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun
- P. R. China
| | - Huipeng Zhou
- State Key Laboratory of Electroanalytical Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun
- P. R. China
| | - Na Yang
- State Key Laboratory of Electroanalytical Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun
- P. R. China
| | - Niu Niu
- State Key Laboratory of Electroanalytical Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun
- P. R. China
| | - Ejaz Hussain
- State Key Laboratory of Electroanalytical Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun
- P. R. China
| | - Yongxin Li
- State Key Laboratory of Electroanalytical Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun
- P. R. China
| | - Cong Yu
- State Key Laboratory of Electroanalytical Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun
- P. R. China
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102
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Luo JH, Cheng D, Li PX, Yao Y, Chen SH, Yuan R, Xu WJ. An electrochemiluminescent sensor based on functionalized conjugated polymer dots for the ultrasensitive detection of Cu2+. Chem Commun (Camb) 2018; 54:2777-2780. [DOI: 10.1039/c7cc09878b] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
An ultrasensitive electrochemiluminescence (ECL) detection for Cu2+ was explored using the carboxyl functionalized poly(9,9-dioctylfluorenyl-2,7-diyl) (PS-COOH-co-PFO) dots as the signal label without adding any coreactant.
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Affiliation(s)
- Jin-Hua Luo
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University)
- Ministry of Education
- College of Chemistry and Chemical Engineering, Southwest University
- Chongqing 400715
- China
| | - Dan Cheng
- Chongqing No. 8 Secondary School
- Chongqing 401120
- P. R. China
| | - Pei-Xuan Li
- Chongqing No. 8 Secondary School
- Chongqing 401120
- P. R. China
| | - Yuan Yao
- Chongqing No. 8 Secondary School
- Chongqing 401120
- P. R. China
| | - Shi-Hong Chen
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University)
- Ministry of Education
- College of Chemistry and Chemical Engineering, Southwest University
- Chongqing 400715
- China
| | - Ruo Yuan
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University)
- Ministry of Education
- College of Chemistry and Chemical Engineering, Southwest University
- Chongqing 400715
- China
| | - Wen-Ju Xu
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University)
- Ministry of Education
- College of Chemistry and Chemical Engineering, Southwest University
- Chongqing 400715
- China
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103
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Tompa DR, Kadhirvel S. Molecular dynamics of a far positioned SOD1 mutant V14M reveals pathogenic misfolding behavior. J Biomol Struct Dyn 2017; 36:4085-4098. [PMID: 29157189 DOI: 10.1080/07391102.2017.1407675] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Human superoxide dismutase (Cu/Zn SOD1) is a homodimeric enzyme. Mutations in Cu/Zn SOD1 causes a familial form of amyotrophic lateral sclerosis (fALS), and aggregation of mutant SOD1 has been proposed to play a role in neurodegeneration. Though a majority of the mutations are point substitutions, there are a few changes that result in amino acid deletions or truncations of the polypeptide. These pathogenic mutations are scattered throughout the three-dimensional structure of the dimeric enzyme, which creates a puzzling pattern to investigate the molecular determinants of fALS. The most common hypothesis proposed that the misfolding of SOD1 mutants are primarily triggered by decreased affinity for metal ions. However, this hypothesis is challenging, as a significant number of disease-causing mutations are located far away from the metal-binding site and dimer interface. So in the present study, we have investigated the influence of such a far positioned pathogenic mutation, V14M, in altering the stability and folding of the Cu/Zn SOD1. Though the location of Val14 is far positioned, it has a vital role in the stability of SOD1 by preserving its hydrophobic cluster at one end of the β barrel domain. We have performed MD simulations of the V14M mutant for 80 ns timescale. The results reveal the fact that irrespective of its location, V14M mutation triggers a conformational change that is more similar to that of the metal-deficient holo form and could resemble an intermediate state in the folding reaction which results in protein misfolding and aggregation.
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Affiliation(s)
- Dharma Rao Tompa
- a Biomolecular Crystallography Laboratory, Department of Bioinformatics, School of Chemical and Biotechnology , SASTRA University , Thanjavur 613 401 , India
| | - Saraboji Kadhirvel
- a Biomolecular Crystallography Laboratory, Department of Bioinformatics, School of Chemical and Biotechnology , SASTRA University , Thanjavur 613 401 , India
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104
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Bharti S, Choudhary M, Mohan B, Rawat S, Sharma S, Ahmad K. Syntheses, characterization, superoxide dismutase, antimicrobial, crystal structure and molecular studies of copper (II) and nickel (II) complexes with 2-(( E )-(2, 4-dibromophenylimino) methyl)-4-bromophenol as Schiff base ligand. J Mol Struct 2017. [DOI: 10.1016/j.molstruc.2017.07.101] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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105
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Mera-Adasme R, Erdmann H, Bereźniak T, Ochsenfeld C. Destabilization of the metal site as a hub for the pathogenic mechanism of five ALS-linked mutants of copper, zinc superoxide dismutase. Metallomics 2017; 8:1141-1150. [PMID: 27603566 DOI: 10.1039/c6mt00085a] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Amyotrophic lateral sclerosis (ALS) is a lethal neurodegenerative disease, with no effective pharmacological treatment. Its pathogenesis is unknown, although a subset of the cases is linked to genetic mutations. A significant fraction of the mutations occur in one protein, copper, zinc superoxide dismutase (SOD1). The toxic function of mutant SOD1 has not been elucidated, but damage to the metal site of the protein is believed to play a major role. In this work, we study the electrostatic loop of SOD1, which we had previously proposed to work as a "solvent seal" isolating the metal site from water molecules. Out of the five contact points identified between the electrostatic loop and its dock in the rest of the protein, three points were found to be affected by ALS-linked mutations, with a total of five mutations identified. The effect of the five mutations was studied using methods of computational chemistry. We found that four of the mutations destabilize the proposed solvent seal, while the fifth mutation directly affects the metal-site stability. In the two contact points unaffected by ALS-linked mutations, the side chains of the residues were not found to play a stabilizing role. Our results show that the docking of the electrostatic loop to the rest of SOD1 plays a role in ALS pathogenesis, in support of that structure acting as a solvent barrier for the metal site. The results provide a unified pathogenic mechanism for five different ALS-linked mutations of SOD1.
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Affiliation(s)
- Raúl Mera-Adasme
- Chair of Theoretical Chemistry, Department of Chemistry, University of Munich (LMU), Munich 81377, Germany.
| | - Hannes Erdmann
- Chair of Theoretical Chemistry, Department of Chemistry, University of Munich (LMU), Munich 81377, Germany.
| | - Tomasz Bereźniak
- Chair of Theoretical Chemistry, Department of Chemistry, University of Munich (LMU), Munich 81377, Germany.
| | - Christian Ochsenfeld
- Chair of Theoretical Chemistry, Department of Chemistry, University of Munich (LMU), Munich 81377, Germany.
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106
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Influence of mismatched and bulged nucleotides on SNP-preferential RNase H cleavage of RNA-antisense gapmer heteroduplexes. Sci Rep 2017; 7:12532. [PMID: 28970564 PMCID: PMC5624880 DOI: 10.1038/s41598-017-12844-z] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2017] [Accepted: 09/11/2017] [Indexed: 12/15/2022] Open
Abstract
This study focused on determining design rules for gapmer-type antisense oligonucleotides (ASOs), that can differentiate cleavability of two SNP variants of RNA in the presence of ribonuclease H based on the mismatch type and position in the heteroduplex. We describe the influence of structural motifs formed by several arrangements of multiple mismatches (various types of mismatches and their position within the ASO/target RNA duplex) on RNase H cleavage selectivity of five different SNP types. The targets were mRNA fragments of APP, SCA3, SNCA and SOD1 genes, carrying C-to-G, G-to-C, G-to-A, A-to-G and C-to-U substitutions. The results show that certain arrangements of mismatches enhance discrimination between wild type and mutant SNP alleles of RNA in vitro as well as in HeLa cells. Among the over 120 gapmers tested, we found two gapmers that caused preferential degradation of the mutant allele APP 692 G and one that led to preferential cleavage of the mutant SNCA 53 A allele, both in vitro and in cells. However, several gapmers promoted selective cleavage of mRNA mutant alleles in in vitro experiments only.
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107
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Mirra S, Strianese M, Pellecchia C. A Cyclam-Based Fluorescent Ligand as a Molecular Beacon for Cu2+
and H2
S Detection. Eur J Inorg Chem 2017. [DOI: 10.1002/ejic.201700623] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Silvia Mirra
- Dipartimento di Chimica e Biologia “Adolfo Zambelli”; Università degli Studi di Salerno; Via Giovanni Paolo II, 132 84084 Fisciano SA Italy
| | - Maria Strianese
- Dipartimento di Chimica e Biologia “Adolfo Zambelli”; Università degli Studi di Salerno; Via Giovanni Paolo II, 132 84084 Fisciano SA Italy
| | - Claudio Pellecchia
- Dipartimento di Chimica e Biologia “Adolfo Zambelli”; Università degli Studi di Salerno; Via Giovanni Paolo II, 132 84084 Fisciano SA Italy
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108
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Wang F, Zhang C, Xue Q, Li H, Xian Y. Label-free upconversion nanoparticles-based fluorescent probes for sequential sensing of Cu 2+ , pyrophosphate and alkaline phosphatase activity. Biosens Bioelectron 2017; 95:21-26. [DOI: 10.1016/j.bios.2017.04.010] [Citation(s) in RCA: 82] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2016] [Revised: 03/25/2017] [Accepted: 04/10/2017] [Indexed: 01/30/2023]
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109
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Biology and Pathobiology of TDP-43 and Emergent Therapeutic Strategies. Cold Spring Harb Perspect Med 2017; 7:cshperspect.a024554. [PMID: 27920024 DOI: 10.1101/cshperspect.a024554] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Cytoplasmic TDP-43 mislocalization and aggregation is a pathological hallmark of amyotrophic lateral sclerosis and frontotemporal lobar degeneration. TDP-43 is an RNA-binding protein (RBP) with a prion-like domain (PrLD) that promotes TDP-43 misfolding. PrLDs possess compositional similarity to canonical prion domains of various yeast proteins, including Sup35. Strikingly, disease-causing TDP-43 mutations reside almost exclusively in the PrLD and can enhance TDP-43 misfolding and toxicity. Another ∼70 human RBPs harbor PrLDs, including FUS, TAF15, EWSR1, hnRNPA1, and hnRNPA2, which have surfaced in the etiology of neurodegenerative diseases. Importantly, PrLDs enable RBP function and mediate phase transitions that partition functional ribonucleoprotein compartments. This PrLD activity, however, renders RBPs prone to populating deleterious oligomers or self-templating fibrils that might spread disease, and disease-linked PrLD mutations can exacerbate this risk. Several strategies have emerged to counter TDP-43 proteinopathies, including engineering enhanced protein disaggregases based on Hsp104.
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110
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Mudhulkar R, Nair RR, Raval IH, Haldar S, Chatterjee PB. Visualizing Zn2+in Living Whole OrganismArtemiaby a Natural Fluorimetric Intermediate Siderophore. ChemistrySelect 2017. [DOI: 10.1002/slct.201701071] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Raju Mudhulkar
- Analytical Division and Centralized Instrument Facility; CSIR-CSMCRI, G. B. Marg; Bhavnagar 364002, Gujarat INDIA
| | - Ratish R. Nair
- Analytical Division and Centralized Instrument Facility; CSIR-CSMCRI, G. B. Marg; Bhavnagar 364002, Gujarat INDIA
| | - Ishan H. Raval
- Marine Biotechnology and Ecology Division; CSIR-CSMCRI, G. B. Marg; Bhavnagar 364002, Gujarat INDIA
| | - Soumya Haldar
- Marine Biotechnology and Ecology Division; CSIR-CSMCRI, G. B. Marg; Bhavnagar 364002, Gujarat INDIA
- Academy of Scientific and Innovative Research; CSIR-CSMCRI, G. B. Marg; Bhavnagar 364002, Gujarat INDIA
| | - Pabitra B. Chatterjee
- Analytical Division and Centralized Instrument Facility; CSIR-CSMCRI, G. B. Marg; Bhavnagar 364002, Gujarat INDIA
- Academy of Scientific and Innovative Research; CSIR-CSMCRI, G. B. Marg; Bhavnagar 364002, Gujarat INDIA
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111
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Atomic structure of a toxic, oligomeric segment of SOD1 linked to amyotrophic lateral sclerosis (ALS). Proc Natl Acad Sci U S A 2017; 114:8770-8775. [PMID: 28760994 DOI: 10.1073/pnas.1705091114] [Citation(s) in RCA: 78] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Fibrils and oligomers are the aggregated protein agents of neuronal dysfunction in ALS diseases. Whereas we now know much about fibril architecture, atomic structures of disease-related oligomers have eluded determination. Here, we determine the corkscrew-like structure of a cytotoxic segment of superoxide dismutase 1 (SOD1) in its oligomeric state. Mutations that prevent formation of this structure eliminate cytotoxicity of the segment in isolation as well as cytotoxicity of the ALS-linked mutants of SOD1 in primary motor neurons and in a Danio rerio (zebrafish) model of ALS. Cytotoxicity assays suggest that toxicity is a property of soluble oligomers, and not large insoluble aggregates. Our work adds to evidence that the toxic oligomeric entities in protein aggregation diseases contain antiparallel, out-of-register β-sheet structures and identifies a target for structure-based therapeutics in ALS.
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112
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Misfolded SOD1 is not a primary component of sporadic ALS. Acta Neuropathol 2017; 134:97-111. [PMID: 28247063 DOI: 10.1007/s00401-017-1688-8] [Citation(s) in RCA: 59] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2016] [Revised: 02/14/2017] [Accepted: 02/17/2017] [Indexed: 12/11/2022]
Abstract
A common feature of inherited and sporadic ALS is accumulation of abnormal proteinaceous inclusions in motor neurons and glia. SOD1 is the major protein component accumulating in patients with SOD1 mutations, as well as in mutant SOD1 mouse models. ALS-linked mutations of SOD1 have been shown to increase its propensity to misfold and/or aggregate. Antibodies specific for monomeric or misfolded SOD1 have detected misfolded SOD1 accumulating predominantly in spinal cord motor neurons of ALS patients with SOD1 mutations. We now use seven different conformationally sensitive antibodies to misfolded human SOD1 (including novel high affinity antibodies currently in pre-clinical development) coupled with immunohistochemistry, immunofluorescence and immunoprecipitation to test for the presence of misfolded SOD1 in high quality human autopsy samples. Whereas misfolded SOD1 is readily detectable in samples from patients with SOD1 mutations, it is below detection limits for all of our measures in spinal cord and cortex tissues from patients with sporadic or non-SOD1 inherited ALS. The absence of evidence for accumulated misfolded SOD1 supports a conclusion that SOD1 misfolding is not a primary component of sporadic ALS.
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113
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Christopher Leslee DB, Karuppannan S, Vengaian KM, Gandhi S, Subramanian S. Carbazole–azine based fluorescence ‘
off–on
’ sensor for selective detection of Cu
2+
and its live cell imaging. LUMINESCENCE 2017. [DOI: 10.1002/bio.3332] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
| | - Sekar Karuppannan
- Department of Chemistry Anna University – University College of Engineering Dindigul India
| | | | - Sivaraman Gandhi
- Institute for Stem Cell Biology and Regenerative Medicine Bangalore India
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114
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Manna S, Karmakar P, Maiti K, Ali SS, Mandal D, Mahapatra AK. A reactive primary fluorescence switch-on sensor for Hg 2+ and the generated fluorophore as secondary recognition receptor toward Cu 2+ in aqueous acetonitrile solution. J Photochem Photobiol A Chem 2017. [DOI: 10.1016/j.jphotochem.2017.04.011] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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115
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A highly selective benzildihydrazone based Schiff base chromogenic chemosensor for rapid detection of Cu2+ in aqueous solution. Inorganica Chim Acta 2017. [DOI: 10.1016/j.ica.2017.04.013] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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116
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Lingabathula H, Yellu N. Assessment of oxidative stress induced by gold nanorods following intra-tracheal instillation in rats. Drug Chem Toxicol 2017; 41:141-146. [DOI: 10.1080/01480545.2017.1321012] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Harikiran Lingabathula
- Department of Pharmacology and Toxicology, University College of Pharmaceutical Sciences, Kakatiya University, Warangal, India
| | - Narsimhareddy Yellu
- Department of Pharmacology and Toxicology, University College of Pharmaceutical Sciences, Kakatiya University, Warangal, India
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117
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Optimizing the Readout of Lanthanide-DOTA Complexes for the Detection of Ligand-Bound Copper(I). Molecules 2017; 22:molecules22050802. [PMID: 28505112 PMCID: PMC6154328 DOI: 10.3390/molecules22050802] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2017] [Revised: 05/05/2017] [Accepted: 05/08/2017] [Indexed: 12/15/2022] Open
Abstract
The CuAAC ‘click’ reaction was used to couple alkyne-functionalized lanthanide-DOTA complexes to a range of fluorescent antennae. Screening of the antenna components was aided by comparison of the luminescent output of the resultant sensors using data normalized to account for reaction conversion as assessed by IR. A maximum 82-fold enhanced signal:background luminescence output was achieved using a Eu(III)-DOTA complex coupled to a coumarin-azide, in a reaction which is specific to the presence of copper(I). This optimized complex provides a new lead design for lanthanide-DOTA complexes which can act as irreversible ‘turn-on’ catalytic sensors for the detection of ligand-bound copper(I).
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118
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Zhao Z, Chen H, Zhang H, Ma L, Wang Z. Polyacrylamide-phytic acid-polydopamine conducting porous hydrogel for rapid detection and removal of copper (II) ions. Biosens Bioelectron 2017; 91:306-312. [DOI: 10.1016/j.bios.2016.12.047] [Citation(s) in RCA: 60] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2016] [Revised: 12/08/2016] [Accepted: 12/20/2016] [Indexed: 12/19/2022]
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119
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Lingabathula H, Yellu N. Evaluation of oxidative stress induction in rats following exposure to silver nanorods. Toxicol Mech Methods 2017; 27:272-278. [PMID: 28030981 DOI: 10.1080/15376516.2016.1274351] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
The study investigated the oxidative stress induction by the 10 and 25 nm silver nanorods (SNRs) following intra-tracheal instillation in rats after 1 day, 1 week, 1 month and 3 months post instillation periods at 1 and 5 mg/kg b.w. doses. The blood was withdrawn by retro orbital plexus method after exposure periods and different oxidative stress markers were estimated. The results showed that the both sizes of SNRs induced increased levels of malondialdehyde (MDA) and depleted glutathione (GSH) levels after 1 day and 1 week post exposure periods. The 10 and 25 nm SNRs at both doses displayed that significantly reduced levels of superoxide dismutase (SOD) and catalase following 1 day and 1 week post exposure periods. Also, the results have shown that decrease in total antioxidant capacity (TAC) of both sizes of SNRs significantly following 1 day and 1 week post exposure periods, indicating the oxidative stress induction by SNRs. In spite, there were no significant changes in oxidative stress markers following 1 month and 3 months post exposure periods may be due to recovery. The increased levels of MDA and decreased levels of GSH, SOD, catalase and TAC activity are strongly associated to ROS production and lipid peroxidation, suggesting the induction of oxidative stress in rats. The 10 nm SNRs at 5 mg/kg b.w. dose exposures in rats have shown greater changes in all oxidative stress parameters, indicating the greater induction of oxidative stress when compared with the 25 nm SNRs, representing the size-dose-dependent induction of oxidative stress of SNRs.
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Affiliation(s)
- Harikiran Lingabathula
- a Department of Pharmacology and Toxicology , University College of Pharmaceutical Sciences, Kakatiya University , Warangal , Telangana , India
| | - Narsimhareddy Yellu
- a Department of Pharmacology and Toxicology , University College of Pharmaceutical Sciences, Kakatiya University , Warangal , Telangana , India
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120
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A rhodamine 6G derivative as “turn-on” fluorescent probe for Cu 2+ . Spectroscopy, single crystal structure and DFT calculations. Polyhedron 2017. [DOI: 10.1016/j.poly.2017.03.014] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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121
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Srinivasan E, Rajasekaran R. Exploring the cause of aggregation and reduced Zn binding affinity by G85R mutation in SOD1 rendering amyotrophic lateral sclerosis. Proteins 2017; 85:1276-1286. [PMID: 28321933 DOI: 10.1002/prot.25288] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2016] [Revised: 03/07/2017] [Accepted: 03/08/2017] [Indexed: 11/08/2022]
Abstract
Amyotrophic lateral sclerosis (ALS), a lethal neurodegenerative disorder is characterized by the degeneration of upper and lower motor neuron. ALS occurs due to various notably prominent missense mutations, in gene encoding Cu-Zn superoxide dismutase (SOD1) thereby leading to aggregation, dysfunction and reduced Zn binding affinity. In this study, one such mutation, G85R was explored in comparison with wild type SOD1, using discrete molecular dynamics (DMD). Accordingly, the conformational changes were significantly observed in mutant SOD1, through various geometrical parameters, which substantiated the difference in conformational deviation, flexibility and compactness, thus stipulating a root cause for aggregation. Followed by, analysis of essential dynamics further authenticated the cause behind the protein dysfunction. In particular, the high content of beta sheet with structural deviations, down to dysfunction was established in mutant as compared to wild type, while passing through secondary structure analysis. Subsequently, the deviation of distance in Zn binding residues was distinctly portrayed in mutant as compared to wild type, thus confirming the cause of reduced Zn binding affinity. In addition, the steered molecular dynamics analysis also authenticated the above results indicating the reduced Zn binding affinity in the mutant as compared to that of the wild type. Hence, this work revealed the theoretical mechanism to unravel the mutational effects of cofactor dependent protein. Proteins 2017; 85:1276-1286. © 2017 Wiley Periodicals, Inc.
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Affiliation(s)
- E Srinivasan
- Bioinformatics Lab, Department of Biotechnology, School of Bio Sciences and Technology, VIT University, Vellore, Tamil Nadu, 632014, India
| | - R Rajasekaran
- Bioinformatics Lab, Department of Biotechnology, School of Bio Sciences and Technology, VIT University, Vellore, Tamil Nadu, 632014, India
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122
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Boontom S, Boonkitpatarakul K, Sukwattanasinitt M, Niamnont N. Highly selective detection of Cu 2+ based on a thiosemicarbazone triphenylacetylene fluorophore. Tetrahedron 2017. [DOI: 10.1016/j.tet.2017.03.044] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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123
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Mondal S, Manna SK, Maiti K, Maji R, Ali SS, Manna S, Mandal S, Uddin MR, Mahapatra AK. Phenanthroline-fluorescein molecular hybrid as a ratiometric and selective fluorescent chemosensor for Cu2+ via FRET strategy: synthesis, computational studies and in vitro applications. Supramol Chem 2017. [DOI: 10.1080/10610278.2017.1301452] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Sanchita Mondal
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Shibpur, Howrah, India
| | - Saikat Kumar Manna
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Shibpur, Howrah, India
| | - Kalipada Maiti
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Shibpur, Howrah, India
| | - Rajkishor Maji
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Shibpur, Howrah, India
| | - Syed Samim Ali
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Shibpur, Howrah, India
| | - Srimanta Manna
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Shibpur, Howrah, India
| | - Sukhendu Mandal
- Department of Microbiology, University of Calcutta, Kolkata, India
| | - Md Raihan Uddin
- Department of Microbiology, University of Calcutta, Kolkata, India
| | - Ajit Kumar Mahapatra
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Shibpur, Howrah, India
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124
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Coumarin Based Fluorescent Probe for Colorimetric Detection of Fe3+ and Fluorescence Turn On-Off Response of Zn2+ and Cu2+. J Fluoresc 2017; 27:1307-1321. [DOI: 10.1007/s10895-017-2065-7] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2016] [Accepted: 03/02/2017] [Indexed: 10/20/2022]
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125
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Luo J, Liu BS, Cao C, Wei F. Neodymium(III) organic frameworks (Nd-MOF) as near infrared fluorescent probe for highly selectively sensing of Cu2+. INORG CHEM COMMUN 2017. [DOI: 10.1016/j.inoche.2017.01.008] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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126
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Naskar B, Modak R, Maiti DK, Bauzá A, Frontera A, Maiti PK, Mandal S, Goswami S. A highly selective “ON–OFF” probe for colorimetric and fluorometric sensing of Cu2+in water. RSC Adv 2017. [DOI: 10.1039/c6ra27017d] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A new diformyl phenol based probe for selective detection of Cu2+in aqueous medium, applicable for cell imaging in Vero cells. Theoretical studies were performed to establish the underlying keto–enol tautomerism and optimization of the Cu2+complex.
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Affiliation(s)
- Barnali Naskar
- Department of Chemistry
- University of Calcutta
- Kolkata-700 009
- India
| | - Ritwik Modak
- Department of Chemistry
- University of Calcutta
- Kolkata-700 009
- India
| | - Dilip K. Maiti
- Department of Chemistry
- University of Calcutta
- Kolkata-700 009
- India
| | - Antonio Bauzá
- Departament de Química
- Universitat de les IllesBalears
- 07122 Palma de Mallorca
- Spain
| | - Antonio Frontera
- Departament de Química
- Universitat de les IllesBalears
- 07122 Palma de Mallorca
- Spain
| | | | - Sukhendu Mandal
- Department of Microbiology
- University of Calcutta
- Kolkata
- India
| | - Sanchita Goswami
- Department of Chemistry
- University of Calcutta
- Kolkata-700 009
- India
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127
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Vellaichamy B, Periakaruppan P. Size and shape regulated synthesis of silver nanocapsules for highly selective and sensitive ultralow bivalent copper ion sensor application. NEW J CHEM 2017. [DOI: 10.1039/c7nj00084g] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
The development of highly robust, quantitative, sensitive and naked eye colorimetric sensing of bivalent copper ions using bio-inspired synthesis of size and shape controlled silver nanocapsules (AgNCs) is reported herein.
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128
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Redox Signaling Regulated by Cysteine Persulfide and Protein Polysulfidation. Molecules 2016; 21:molecules21121721. [PMID: 27983699 PMCID: PMC6273478 DOI: 10.3390/molecules21121721] [Citation(s) in RCA: 64] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2016] [Revised: 12/08/2016] [Accepted: 12/09/2016] [Indexed: 12/21/2022] Open
Abstract
For decades, reactive persulfide species including cysteine persulfide (CysSSH) have been known to exist endogenously in organisms. However, the physiological significance of endogenous persulfides remains poorly understood. That cystathionine β-synthase and cystathionine γ-lyase produced CysSSH from cystine was recently demonstrated. An endogenous sulfur transfer system involving CysSSH evidently generates glutathione persulfide (GSSH) that exists at concentrations greater than 100 μM in vivo. Because reactive persulfide species such as CysSSH and GSSH have higher nucleophilicity than parental cysteine (Cys) and glutathione do, these reactive species exhibit strong scavenging activities against oxidants, e.g., hydrogen peroxide, and electrophiles, which contributes to redox signaling regulation. Also, several papers indicated that various proteins and enzymes have Cys polysulfides including CysSSH at their specific Cys residues, which is called protein polysulfidation. Apart from the redox signaling regulatory mechanism, another plausible function of protein polysulfidation is providing protection for protein thiol residues against irreversible chemical modification caused by oxidants and electrophiles. Elucidation of the redox signaling regulatory mechanism of reactive persulfide species including small thiol molecules and thiol-containing proteins should lead to the development of new therapeutic strategies and drug discoveries for oxidative and electrophilic stress-related diseases.
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129
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Tahir W, Zafar S, Llorens F, Arora AS, Thüne K, Schmitz M, Gotzmann N, Kruse N, Mollenhauer B, Torres JM, Andréoletti O, Ferrer I, Zerr I. Molecular Alterations in the Cerebellum of Sporadic Creutzfeldt-Jakob Disease Subtypes with DJ-1 as a Key Regulator of Oxidative Stress. Mol Neurobiol 2016; 55:517-537. [PMID: 27975168 DOI: 10.1007/s12035-016-0294-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2016] [Accepted: 11/08/2016] [Indexed: 12/15/2022]
Abstract
Cerebellar damage and granular and Purkinje cell loss in sporadic Creutzfeldt-Jakob disease (sCJD) highlight a critical involvement of the cerebellum during symptomatic progression of the disease. In this project, global proteomic alterations in the cerebellum of brain from the two most prevalent subtypes (MM1 and VV2) of sCJD were studied. Two-dimensional gel electrophoresis (2DE) coupled mass spectrometric identification revealed 40 proteins in MM1 and 43 proteins in VV2 subtype to be differentially expressed. Of those, 12 proteins showed common differential expression in their expression between two subtypes. Differentially expressed proteins mainly belonged to (i) cell cycle, gene expression and cell death; (ii) cellular stress response/oxidative stress (OS) and (iii) signal transduction and synaptic functions, related molecular functions. We verified 10 differentially expressed proteins at transcriptional and translational level as well. Interestingly, protein deglycase DJ-1 (an antioxidative protein) showed an increase in its messenger RNA (mRNA) expression in both MM1 and VV2 subtypes but protein expression only in VV2 subtype in cerebellum of sCJD patients. Nuclear translocalization of DJ-1 confirmed its expressional alteration due to OS in sCJD. Downstream experiments showed the activation of nuclear factor erythroid-2 related factor 2 (Nrf2)/antioxidative response element (ARE) pathway. DJ-1 protein concentration was significantly increased during the clinical phase in cerebrospinal fluid of sCJD patients and also at presymptomatic and symptomatic stages in cerebellum of humanized PrP transgenic mice inoculated with sCJD (MM1 and VV2) brain. These results suggest the implication of oxidative stress during the pathophysiology of sCJD.
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Affiliation(s)
- Waqas Tahir
- Department of Neurology, University Medical Center Goettingen (UMG) and German Center for Neurodegenerative Diseases (DZNE) Goettingen, Robert-Koch-Str., 40, 37075, Goettingen, Germany
| | - Saima Zafar
- Department of Neurology, University Medical Center Goettingen (UMG) and German Center for Neurodegenerative Diseases (DZNE) Goettingen, Robert-Koch-Str., 40, 37075, Goettingen, Germany.
| | - Franc Llorens
- Department of Neurology, University Medical Center Goettingen (UMG) and German Center for Neurodegenerative Diseases (DZNE) Goettingen, Robert-Koch-Str., 40, 37075, Goettingen, Germany
| | - Amandeep Singh Arora
- Department of Neurology, University Medical Center Goettingen (UMG) and German Center for Neurodegenerative Diseases (DZNE) Goettingen, Robert-Koch-Str., 40, 37075, Goettingen, Germany
| | - Katrin Thüne
- Department of Neurology, University Medical Center Goettingen (UMG) and German Center for Neurodegenerative Diseases (DZNE) Goettingen, Robert-Koch-Str., 40, 37075, Goettingen, Germany
| | - Matthias Schmitz
- Department of Neurology, University Medical Center Goettingen (UMG) and German Center for Neurodegenerative Diseases (DZNE) Goettingen, Robert-Koch-Str., 40, 37075, Goettingen, Germany
| | - Nadine Gotzmann
- Department of Neurology, University Medical Center Goettingen (UMG) and German Center for Neurodegenerative Diseases (DZNE) Goettingen, Robert-Koch-Str., 40, 37075, Goettingen, Germany
| | - Niels Kruse
- Institute of Neuropathology, University Medical Center Goettingen (UMG), Robert-Koch-Str. 40, 37075, Goettingen, Germany
| | - Brit Mollenhauer
- Institute of Neuropathology, University Medical Center Goettingen (UMG), Robert-Koch-Str. 40, 37075, Goettingen, Germany
| | - Juan Maria Torres
- Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria, Carretera de Algete a El Casar Km. 8,1 S/N, 28130, Valdeolmos, Madrid, Spain
| | - Olivier Andréoletti
- Institut National de la Recherche Agronomique/Ecole Nationale Vétérinaire, Toulouse, France
| | - Isidre Ferrer
- Institute of Neuropathology, Hospitalet de Llobregat, IDIBELL-University Hospital Bellvitge, University of Barcelona, Barcelona, Spain.,Network Center for Biomedical Research of Neurodegenerative Diseases (CIBERNED), Ministry of Health, Institute Carlos III, Madrid, Spain
| | - Inga Zerr
- Department of Neurology, University Medical Center Goettingen (UMG) and German Center for Neurodegenerative Diseases (DZNE) Goettingen, Robert-Koch-Str., 40, 37075, Goettingen, Germany
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130
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Motor neurons derived from ALS-related mouse iPS cells recapitulate pathological features of ALS. Exp Mol Med 2016; 48:e276. [PMID: 27932790 PMCID: PMC5192071 DOI: 10.1038/emm.2016.113] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2016] [Revised: 07/06/2016] [Accepted: 08/01/2016] [Indexed: 02/07/2023] Open
Abstract
Amyotrophic lateral sclerosis (ALS) is a late-onset progressive neurodegenerative disease characterized by the loss of motor neurons in the spinal cord and brain. Mutations in Cu/Zn superoxide dismutase 1 (SOD1) are known to induce ALS. Although many research models have been developed, the exact pathological mechanism of ALS remains unknown. The recently developed induced pluripotent stem (iPS) cell technology is expected to illuminate the pathological mechanisms and new means of treatment for neurodegenerative diseases. To determine the pathological mechanism of ALS, we generated mouse iPS (miPS) cells from experimental ALS transgenic mice and control mice and characterized the cells using molecular biological methods. The generated miPS cells expressed many pluripotent genes and differentiated into three germ layers in vitro and in vivo. Motor neurons derived from ALS-related miPS cells recapitulated the pathological features of ALS. The ALS-model motor neurons showed SOD1 aggregates, as well as decreased cell survival rate and neurite length compared with wild-type motor neurons. Our study will be helpful in revealing the mechanism of motor neuronal cell death in ALS.
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131
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Banerjee V, Shani T, Katzman B, Vyazmensky M, Papo N, Israelson A, Engel S. Superoxide Dismutase 1 (SOD1)-Derived Peptide Inhibits Amyloid Aggregation of Familial Amyotrophic Lateral Sclerosis SOD1 Mutants. ACS Chem Neurosci 2016; 7:1595-1606. [PMID: 27540759 DOI: 10.1021/acschemneuro.6b00227] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Amyotrophic lateral sclerosis (ALS) is a neurodegenerative disorder that leads to the death of the upper and lower motor neurons. Superoxide dismutase 1 (SOD1) is an ALS pathogenic protein, whose misfolding results in the formation of amyloid aggregates. The mechanism underlying SOD1 pathogenesis in ALS remains obscure, but one possible mechanism involves gain-of-interaction, in which the misfolded soluble SOD1 forms abnormal protein-protein interactions (PPIs) with various cellular proteins, including with other SOD1 molecules, thereby interfering with their function. The structural basis of this gain-of-interaction mechanism is unknown. Here, we characterized the backbone dynamics landscape of misfolded SOD1 to pinpoint surface areas predisposed to aberrant PPIs. This analysis enabled us to formulate a working hypothesis for the mechanism of the gain-of-function of misfolded SOD1, according to which an abnormal PPI potential results from the increased mobility of the SOD1 surface backbone. Guided by the backbone dynamics landscape, we have identified a SOD1-derived peptide that can bind SOD1 proteins and divert the typical amyloid aggregation of ALS-related SOD1 mutants toward a potentially less toxic amorphous aggregation pathway.
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Affiliation(s)
- Victor Banerjee
- Department
of Biotechnology Engineering, Faculty of Engineering, Ben-Gurion University of the Negev, Beer-Sheva 8410501, Israel
- National
Institute for Biotechnology in the Negev, Ben-Gurion University of the Negev, Beer-Sheva 8410501, Israel
| | - Tom Shani
- Department
of Physiology and Cell Biology, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva 8410501, Israel
| | - Bella Katzman
- Department
of Clinical Biochemistry and Pharmacology, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva 8410501, Israel
| | - Maria Vyazmensky
- Department
of Clinical Biochemistry and Pharmacology, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva 8410501, Israel
- National
Institute for Biotechnology in the Negev, Ben-Gurion University of the Negev, Beer-Sheva 8410501, Israel
| | - Niv Papo
- Department
of Biotechnology Engineering, Faculty of Engineering, Ben-Gurion University of the Negev, Beer-Sheva 8410501, Israel
- National
Institute for Biotechnology in the Negev, Ben-Gurion University of the Negev, Beer-Sheva 8410501, Israel
| | - Adrian Israelson
- Department
of Physiology and Cell Biology, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva 8410501, Israel
| | - Stanislav Engel
- Department
of Clinical Biochemistry and Pharmacology, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva 8410501, Israel
- National
Institute for Biotechnology in the Negev, Ben-Gurion University of the Negev, Beer-Sheva 8410501, Israel
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132
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Fan Z, Ye JH, Bai Y, Bian S, Wang X, Zhang W, He W. A new dual-channel ratiometric fluorescent chemodosimeter for Cu2+ and its imaging in living cells. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2016.10.050] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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133
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Canabarro CM, Ceolin J, Siqueira JD, Iglesias BA, Manzoni de Oliveira G, Back DF, Campos PT. Evaluation of the Antioxidant Activity of Copper(II) Complexes containing Tris-(hydroxymethyl)aminomethane (TRIS) Units. Z Anorg Allg Chem 2016. [DOI: 10.1002/zaac.201600214] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- Cibele M. Canabarro
- Laboratório de Materiais Inorgânicos; Department of Chemistry; Federal University of Santa Maria, UFSM; ZIP CODE 97115-900 Santa Maria, RS Brazil
| | - Joice Ceolin
- Laboratório de Materiais Inorgânicos; Department of Chemistry; Federal University of Santa Maria, UFSM; ZIP CODE 97115-900 Santa Maria, RS Brazil
| | - Josiéli D. Siqueira
- Laboratório de Materiais Inorgânicos; Department of Chemistry; Federal University of Santa Maria, UFSM; ZIP CODE 97115-900 Santa Maria, RS Brazil
| | - Bernardo A. Iglesias
- Laboratório de Materiais Inorgânicos; Department of Chemistry; Federal University of Santa Maria, UFSM; ZIP CODE 97115-900 Santa Maria, RS Brazil
| | - Gelson Manzoni de Oliveira
- Laboratório de Materiais Inorgânicos; Department of Chemistry; Federal University of Santa Maria, UFSM; ZIP CODE 97115-900 Santa Maria, RS Brazil
| | - Davi F. Back
- Laboratório de Materiais Inorgânicos; Department of Chemistry; Federal University of Santa Maria, UFSM; ZIP CODE 97115-900 Santa Maria, RS Brazil
| | - Patrick T. Campos
- Instituto Federal Sul-Rio-Grandense (IFSul); Campus Pelotas, RS Brazil
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134
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Goh H, Ko YG, Nam TK, Singh A, Singh N, Jang DO. A benzimidazole-based fluorescent chemosensor for Cu2+ recognition and its complex for sensing H2PO4− by a Cu2+ displacement approach in aqueous media. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2016.08.074] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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135
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Simultaneous detection of Cu2+ and Cr3+ by a simple Schiff-base colorimetric chemosensor bearing NBD (7-nitrobenzo-2-oxa-1,3-diazolyl) and julolidine moieties. Tetrahedron 2016. [DOI: 10.1016/j.tet.2016.07.051] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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136
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Yu Y, Yu C, Yin T, Ou S, Sun X, Wen X, Zhang L, Tang D, Yin X. Functionalized poly (ionic liquid) as the support to construct a ratiometric electrochemical biosensor for the selective determination of copper ions in AD rats. Biosens Bioelectron 2016; 87:278-284. [PMID: 27567254 DOI: 10.1016/j.bios.2016.08.066] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2016] [Revised: 08/11/2016] [Accepted: 08/19/2016] [Indexed: 01/18/2023]
Abstract
An efficient ratiometric electrochemical biosensor for Cu2+ determination was constructed using dual hydroxyl-functionalized poly (ionic liquid) (DHF-PIL) as the catalyst support. The DHF-PIL exhibited typical macroporous structure, which provided a high surface area of 39.31m2/g for the sufficient loading of biomolecules. The specific recognition of Cu2+ was accomplished by employing neurokinin B (NKB) for the first time, which could bind to Cu2+ to form a [CuII(NKB)2] complex with high specificity. Meanwhile, a common redox mediator, 2, 2'-Azinobis-(3-ethylbenzthiazoline-6-sulfonate) (ABTS) was modified into DHF-PIL by electrostatic interactions to act as an inner reference molecule, which provided a built-in correction for environmental effects and improving the detection accuracy. With this strategy, the developed electrochemical biosensor was capable of determining Cu2+ with a linear range between 0.9 and 36.1μM and low detection limit (LOD) and quantification limit (LOQ) of 0.24 and 0.6μM, respectively. The sensor also displayed a satisfactory selectivity against a series of interferences in the brain, including metal ions, amino acids and other endogenous compounds. Accordingly, the present biosensor was successfully applied to evaluate Cu2+ levels in normal and AD rats.
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Affiliation(s)
- Yanyan Yu
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, 209 Tongshan Road, Xuzhou, Jiangsu 221004, PR China
| | - Chao Yu
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, 209 Tongshan Road, Xuzhou, Jiangsu 221004, PR China
| | - Tianxiao Yin
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, 209 Tongshan Road, Xuzhou, Jiangsu 221004, PR China
| | - Shanshan Ou
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, 209 Tongshan Road, Xuzhou, Jiangsu 221004, PR China
| | - Xiaoyu Sun
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, 209 Tongshan Road, Xuzhou, Jiangsu 221004, PR China
| | - Xiangru Wen
- College of Biomedical Sciences, Xuzhou Medical University, 209 Tongshan Road, Xuzhou 221004, PR China
| | - Lin Zhang
- Jiangsu Vcare Pharmatech Company, 15 Wanshou Road, Nanjing, Jiangsu 210000, PR China
| | - Daoquan Tang
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, 209 Tongshan Road, Xuzhou, Jiangsu 221004, PR China.
| | - Xiaoxing Yin
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, 209 Tongshan Road, Xuzhou, Jiangsu 221004, PR China.
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137
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138
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Tanaka T, Araki R, Saido T, Abe R, Aoki S. 11B NMR/MRI Sensing of Copper(II) Ions In Vitro by the Decomposition of a Hybrid Compound of anido-o-Carborane and a Metal Chelator. Eur J Inorg Chem 2016. [DOI: 10.1002/ejic.201600346] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Tomohiro Tanaka
- Faculty of Pharmaceutical Sciences; Tokyo University of Science; 2641 Yamazaki 278-8510 Noda Japan
| | - Rikita Araki
- Bruker Biospin K. K.; 3-9 Kanagawa-ku Moriya-cho 221-0022 Yokohama Japan
| | - Takaomi Saido
- Laboratory for Proteolytic Neuroscience; RIKEN Brain Science Institute; 2-1 Hirosawa 351-0198 Wako Saitama Japan
| | - Ryo Abe
- Research Institute for Biomedical Sciences; Tokyo University of Science; 2641 Yamazaki 278-8510 Noda Japan
| | - Shin Aoki
- Faculty of Pharmaceutical Sciences; Tokyo University of Science; 2641 Yamazaki 278-8510 Noda Japan
- Imaging Frontier Center; Research Institute for Science and Technology; Tokyo University of Science; 2641 Yamazaki 278-8510 Noda Japan
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139
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Razi SS, Ali R, Gupta RC, Dwivedi SK, Sharma G, Koch B, Misra A. Phenyl-end-capped-thiophene (P-T type) based ICT fluorescent probe (D–π–A) for detection of Hg2+ and Cu2+ ions: Live cell imaging and logic operation at molecular level. J Photochem Photobiol A Chem 2016. [DOI: 10.1016/j.jphotochem.2016.03.015] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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140
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Samanta S, Manna U, Ray T, Das G. An aggregation-induced emission (AIE) active probe for multiple targets: a fluorescent sensor for Zn(2+) and Al(3+) & a colorimetric sensor for Cu(2+) and F(-). Dalton Trans 2016; 44:18902-10. [PMID: 26467383 DOI: 10.1039/c5dt03186a] [Citation(s) in RCA: 113] [Impact Index Per Article: 14.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
A rationally designed probe L, which consists of both cation and anion binding sites, is capable of displaying interesting aggregation induced emission (AIE) properties. L not only can sense Al(3+) and Zn(2+) through selective turn-on fluorescence responses in 9 : 1 methanol-HEPES buffer (5 mM, pH 7.3; 9 : 1, v/v) medium due to metal ion triggered AIE activity, but also can distinguish them through individual emission signals. L can also detect Cu(2+) in mixed buffer medium and F(-) in acetonitrile through sharp colorimetric responses. All the sensing processes are conspicuous through the naked eye. A theoretical study strongly backed the proposed sensing mechanisms.
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Affiliation(s)
- Soham Samanta
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, India.
| | - Utsab Manna
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, India.
| | - Turjya Ray
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, India.
| | - Gopal Das
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, India.
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141
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Sheshadri P, Kumar A. Managing odds in stem cells: insights into the role of mitochondrial antioxidant enzyme MnSOD. Free Radic Res 2016; 50:570-84. [DOI: 10.3109/10715762.2016.1155708] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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142
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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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143
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Nair RR, Raju M, Patel NP, Raval IH, Suresh E, Haldar S, Chatterjee PB. Naked eye instant reversible sensing of Cu(2+) and its in situ imaging in live brine shrimp Artemia. Analyst 2016; 140:5464-8. [PMID: 26145434 DOI: 10.1039/c5an00957j] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A Cu(2+)-specific colorimetric reversible fluorescent receptor was designed and synthesized which showed a naked eye observable colour change from colourless to pink on addition of an aqueous buffer (pH 7.4) solution of 30 ppb Cu(2+). Short response time (≤5 s) and low detection limit (nearly 3 ppb) make suitable as a reliable "dip-in" open eye sensor for Cu(2+). Bio-imaging application in live brine shrimp Artemia enabled to detect Cu(2+) at as low as 10 ppb exposure.
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Affiliation(s)
- Ratish R Nair
- Analytical Discipline and Centralized Instrumental Facility, CSIR-CSMCRI, G. B. Marg, Bhavnagar 364002, India.
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144
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Fathy SM, Drees EA. Protective effects of Egyptian cloudy apple juice and apple peel extract on lipid peroxidation, antioxidant enzymes and inflammatory status in diabetic rat pancreas. Altern Ther Health Med 2016; 16:8. [PMID: 26753525 PMCID: PMC4707737 DOI: 10.1186/s12906-015-0957-0] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2015] [Accepted: 12/03/2015] [Indexed: 12/19/2022]
Abstract
Background Apples possess rich content of varied polyphenolic compounds showing a variety of biological activities that may ascribe to worthy effects against some chronic diseases. The present study was designed to assess the protective effects of the cloudy apple juice (CAJ) and apple peel extract (APE) of Egyptian Anna apple on the complications in experimental diabetes. Materials and methods Four groups were studied. Diabetes was induced by a single dose of streptozotocin (STZ) to only three groups of albino Wistar rats. Two of the diabetic groups received either CAJ or APE for 21 days. At the end of the study, lipid profile parameters were measured in serum while lipid peroxidation (LPO) level, antioxidant enzyme activities and inflammatory markers were evaluated in pancreas tissue samples. The gas chromatography–mass spectrometry (GC-MS) analysis of phenolic compounds found in CAJ and APE was carried out. Moreover, total phenolic content of CAJ and APE were measured. Results The significant increase of blood glucose level, serum total cholesterol (TC), triglycerides (TG), low- density lipoprotein cholesterol (LDL-C), and very low-density lipoprotein (VLDL) levels, in addition to tissue malondialdehyde (MDA), nuclear factor kappa B (NF-kB), tumor necrosis factor α (TNF-α), interleukin 6 (IL-6), interleukin 8 (IL-8) levels, but a significant decrease in high-density lipoprotein cholesterol (HDL-C), and the activity of pancreatic antioxidant enzymes were the remarkably parameters observed in diabetic control rats. Dissimilarly, oral supplementation of 15 ml/kg CAJ and 1 g/kg APE for 21 days resulted in a significant decrease in fasting blood glucose, serum TC, TG, LDL-C, VLDL-C and tissue MDA, NF-kB, TNF-α, IL-6, IL-8 levels coupled with a significant elevation of HDL-C and antioxidant enzymes’ activity when compared with diabetic control animals. Conclusions The results indicate that Egyptian CAJ and APE supplementation may have protective effects against deleterious complications of diabetes mellitus.
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145
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Nacke H, Gonçalves AC, Campagnolo MA, Coelho GF, Schwantes D, dos Santos MG, Briesch DL, Zimmermann J. Adsorption of Cu (II) and Zn (II) from Water by Jatropha curcas L. as Biosorbent. OPEN CHEM 2016. [DOI: 10.1515/chem-2016-0010] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
AbstractThe objective of this work was to evaluate the removal of Cu2+ and Zn2+ in water by means of the adsorption process using three biosorbents derived from jatropha biomass (bark, endosperm and endosperm + seed coat). The experiments were performed in batch and evaluated the effect of solution pH, adsorbent mass, contact time, different initial concentrations of the metals Cu2+ and Zn2+, and the temperature of the solution during the adsorptive process. By kinetics, the adsorption isotherms and thermodynamics the mechanisms that control the adsorptive process were evaluated. The optimal conditions for the realization of the adsorptive process for both metals were: solution pH of 5.0 and 8 g L-1 of adsorbent mass per volume of solution, with a contact time between adsorbent and adsorbate of 60 min. According to the Langmuir model, the maximum adsorption capacities for the bark, endosperm and endosperm + seed coat of Jatropha were, respectively, for Cu2+ 11.541, 20.475 and 22.910 mg g-1, and for Zn2+ 14.852; 15.888 and 14.674 mg g-1, with the predominance of chemisorption in monolayer. The three biosorbents derived from the biomass of Jatropha have potential for the remediation of water contaminated with Cu2+ and Zn2+.
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Affiliation(s)
- Herbert Nacke
- 1University Center Dynamic of Cataracts, Foz do Iguaçu, Paraná, Brazil, Rua Castelo Branco, 349, Zip code: 85852-010
| | - Affonso Celso Gonçalves
- 22State University of West Paraná, Center for Agricultural Sciences, Marechal Cândido Rondon, Paraná, Brazil. Rua Pernambuco, 1777, CEP 85960-000
| | - Marcelo Angelo Campagnolo
- 3State University of West Paraná, Center for Agricultural Sciences, Marechal Cândido Rondon, Paraná, Brazil. Rua Pernambuco, 1777, CEP 85960-000
| | - Gustavo Ferreira Coelho
- 5University Center Dynamic of Cataracts, Educacional College of Medianeira, Paraná, Brazil, Rua Rio Branco, 1820, Zip code: 85884-000
| | - Daniel Schwantes
- 4Pontifical Catholic University of Paraná, Environmental Enginerring, Polytechnic School – Toledo, Brazil. União Avenue, 500, CEP: 85902-532
| | - Marcelo Gonçalves dos Santos
- 3State University of West Paraná, Center for Agricultural Sciences, Marechal Cândido Rondon, Paraná, Brazil. Rua Pernambuco, 1777, CEP 85960-000
| | - Dionir Luiz Briesch
- 3State University of West Paraná, Center for Agricultural Sciences, Marechal Cândido Rondon, Paraná, Brazil. Rua Pernambuco, 1777, CEP 85960-000
| | - Juliano Zimmermann
- 3State University of West Paraná, Center for Agricultural Sciences, Marechal Cândido Rondon, Paraná, Brazil. Rua Pernambuco, 1777, CEP 85960-000
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146
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Srinivasan E, Rajasekaran R. Computational investigation of curcumin, a natural polyphenol that inhibits the destabilization and the aggregation of human SOD1 mutant (Ala4Val). RSC Adv 2016. [DOI: 10.1039/c6ra21927f] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Curcumin inhibits the aberrant aggregation in mutant SOD1 protein, thereby decreasing the propensity of β-sheets and the toxicity level.
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Affiliation(s)
- E. Srinivasan
- Computational Biology Lab
- Department of Biotechnology
- School of Bio Sciences and Technology
- VIT University
- Vellore 632014
| | - R. Rajasekaran
- Computational Biology Lab
- Department of Biotechnology
- School of Bio Sciences and Technology
- VIT University
- Vellore 632014
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147
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Sahoo PR, Kumar S. Synthesis of an optically switchable salicylaldimine substituted naphthopyran for selective and reversible Cu2+ recognition in aqueous solution. RSC Adv 2016. [DOI: 10.1039/c5ra24857d] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A light controlled reversible switch for copper ion was synthesized by substituting photochromic naphthopyran with a salicylaldimine moiety.
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Affiliation(s)
| | - Satish Kumar
- Department of Chemistry
- St. Stephen’s College
- Delhi – 110007
- India
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148
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Sekhar A, Bain AD, Rumfeldt JAO, Meiering EM, Kay LE. Evolution of magnetization due to asymmetric dimerization: theoretical considerations and application to aberrant oligomers formed by apoSOD12SH. Phys Chem Chem Phys 2016; 18:5720-8. [DOI: 10.1039/c5cp03044g] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A set of coupled differential equations is presented describing the evolution of magnetization due to an exchange reaction whereby a pair of identical monomers form an asymmetric dimer.
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Affiliation(s)
- Ashok Sekhar
- Departments of Molecular Genetics, Biochemistry and Chemistry
- The University of Toronto
- Toronto
- Canada
| | - Alex D. Bain
- Department of Chemistry and Chemical Biology
- McMaster University
- Hamilton
- Canada
| | | | | | - Lewis E. Kay
- Departments of Molecular Genetics, Biochemistry and Chemistry
- The University of Toronto
- Toronto
- Canada
- Hospital for Sick Children
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149
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Roy N, Nath S, Dutta A, Mondal P, Paul PC, Singh TS. A highly efficient and selective coumarin based fluorescent probe for colorimetric detection of Fe3+and fluorescence dual sensing of Zn2+and Cu2+. RSC Adv 2016. [DOI: 10.1039/c6ra12217e] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A new coumarin based Schiff-base chemosensor was synthesized and evaluated. Based on Job’s plot,1H NMR titration, ESI-MS and B-H plot, the structure of ligand and its metal ion is 1 : 1 stoichiometry. It also exhibits a binary logic function.
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Affiliation(s)
- Nayan Roy
- Department of Chemistry
- Assam University
- Silchar
- India
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150
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Khan RI, Pitchumani K. β-Cyclodextrin included coumarin derivatives as selective fluorescent sensors for Cu2+ ions in HeLa cells. RSC Adv 2016. [DOI: 10.1039/c6ra01522k] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
A highly sensitive and selective fluorescent sensor for Cu2+ ions in water medium is reported using 4-((benzo[d]thiazol-2-ylthio)methyl)-5,7-dihydroxy-2H-chromen-2-one (1) included β-cyclodextrin, as a probe.
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Affiliation(s)
| | - Kasi Pitchumani
- School of Chemistry
- Madurai Kamaraj University
- Madurai 625 021
- India
- Center for Green Chemistry Processes
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