1
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Zhou H, Jin Y, Wang S, Wang Y, Bu M. A Near-Infrared Fluorescent Probe for the Rapid Detection of Nitroxyl in Living Cells. J Fluoresc 2024:10.1007/s10895-024-03637-5. [PMID: 38430415 DOI: 10.1007/s10895-024-03637-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2024] [Accepted: 02/26/2024] [Indexed: 03/03/2024]
Abstract
Nitroxyl (HNO) plays an important role in various physiological activities. It has the potential to be used as a treatment for certain diseases such as alcohol poisoning, acute hypertension, and atherosclerosis. However, traditional methods for detecting HNO are challenging due to its rapid polymerization and elimination into N2O. Therefore, it is crucial to establish direct and effective HNO detection methods to comprehend these physiological processes better. In this study, a new near-infrared fluorescent probe called HXM-P based on the intramolecular charge transfer (ICT) mechanism was designed and synthesized. This probe employs 2-((6-hydroxy-2,3dihydro-1 H-xanthen-4-yl)methylene)malononitrile as a fluorophore and 2-(diphenylphosphine) benzoate as a recognition group. The results showed that probe HXM-P can detect HNO with high sensitivity (1.07 × 10- 8 M). A good linear correlation was observed between the fluorescence intensities at 640 nm and the concentrations of HNO in the range of 0-80 µM (R2 = 0.997). Moreover, probe HXM-P exhibited a rapid response rate (within 15 s) toward HNO, and the fluorescent intensity reached a plateau within 5 min, making it easier to track the highly reactive and short-lived HNO in living systems. Additionally, HXM-P was successfully employed for imaging HNO in HepG2 cells.
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Affiliation(s)
- Hang Zhou
- Department of Applied Chemistry, Xi'an University of Technology, Xi'an, Shaanxi, 710054, China.
| | - Yu Jin
- Department of Applied Chemistry, Xi'an University of Technology, Xi'an, Shaanxi, 710054, China
| | - Sheng Wang
- Department of Applied Chemistry, Xi'an University of Technology, Xi'an, Shaanxi, 710054, China
| | - Yixiang Wang
- Department of Applied Chemistry, Xi'an University of Technology, Xi'an, Shaanxi, 710054, China
| | - Ming Bu
- College of Pharmacy, Qiqihar Medical University, Qiqihar, 161006, China.
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2
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Olasz B, Fiser B, Szőri M, Viskolcz B, Owen MC. Computational Elucidation of the Solvent-Dependent Addition of 4-Hydroxy-2-nonenal (HNE) to Cysteine and Cysteinate Residues. J Org Chem 2022; 87:12909-12920. [PMID: 36148484 DOI: 10.1021/acs.joc.2c01487] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The lipid peroxidation end product, 4-hydroxy-2-nonenal (HNE), is a secondary mediator of oxidative stress due to its strong ability to form adducts to the side chains of lysine, histidine, and cysteine residues (Cys) at increasing reactivities. This reaction can take place in various cellular environments and may be dependent on solvent. Moreover, approximately 10% of cysteine residues within the cells exist as the negatively charged cysteinate, which may also have a distinct reactivity toward HNE. In this study, quantum chemical calculations are used to investigate the reactivity of HNE toward Cys and cysteinate in three distinct solvent environments to mimic the aqueous, polar, and hydrophobic regions within the cell. Water enhances the reactivity of HNE to cysteine compared to that of the polar and hydrophobic solvents, and the reactivity of HNE is further augmented when Cys is first ionized to cysteinate. This is also confirmed by the transition state rate constant calculations. This study reveals the role of solvent polarity in these reactions and how cysteinate can account for the seemingly high reactivity of HNE toward Cys compared to other amino acid residues and demonstrates how a strong nucleophile can enhance the reactivity of an antioxidant analogue of the Cys residue.
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Affiliation(s)
- Balázs Olasz
- Institute of Chemistry, University of Miskolc, Miskolc-Egyetemváros, H-3515 Miskolc, Hungary
| | - Béla Fiser
- Institute of Chemistry, University of Miskolc, Miskolc-Egyetemváros, H-3515 Miskolc, Hungary.,Higher Education and Industrial Cooperation Centre, University of Miskolc, Miskolc-Egyetemváros, H-3515 Miskolc, Hungary.,Ferenc Rákóczi II Transcarpathian Hungarian College of Higher Education, UA-90200 Beregszász, Transcarpathia, Ukraine
| | - Milán Szőri
- Institute of Chemistry, University of Miskolc, Miskolc-Egyetemváros, H-3515 Miskolc, Hungary
| | - Béla Viskolcz
- Institute of Chemistry, University of Miskolc, Miskolc-Egyetemváros, H-3515 Miskolc, Hungary.,Higher Education and Industrial Cooperation Centre, University of Miskolc, Miskolc-Egyetemváros, H-3515 Miskolc, Hungary
| | - Michael C Owen
- Institute of Chemistry, University of Miskolc, Miskolc-Egyetemváros, H-3515 Miskolc, Hungary.,Higher Education and Industrial Cooperation Centre, University of Miskolc, Miskolc-Egyetemváros, H-3515 Miskolc, Hungary
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3
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Xu J, Bai Y, Ma Q, Sun J, Tian M, Li L, Zhu N, Liu S. Ratiometric Determination of Nitroxyl Utilizing a Novel Fluorescence Resonance Energy Transfer-Based Fluorescent Probe Based on a Coumarin-Rhodol Derivative. ACS OMEGA 2022; 7:5264-5273. [PMID: 35187341 PMCID: PMC8851634 DOI: 10.1021/acsomega.1c06403] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2021] [Accepted: 01/25/2022] [Indexed: 05/15/2023]
Abstract
Nitroxyl (HNO) is a member of the reactive nitrogen species, and how to detect it quickly and accurately is a challenging task. In this work, we designed and prepared a fluorescent ratiometric probe based on the fluorescence resonance energy transfer (FRET) mechanism, which can detect HNO with high selectivity. The coumarin derivative was used as an energy donor, the rhodol derivative was applied as an energy receptor, and 2-(diphenylphosphine)benzoate was utilized as the recognition group to detect nitroxyl. In the absence of HNO, the rhodol derivative exists in a non-fluorescent spironolactone state, and the FRET process is inhibited. Upon adding HNO, the closed spironolactone form is transformed into a conjugated xanthene structure and the FRET process occurs. This probe could specifically recognize nitroxyl, showing high sensitivity and selectivity. When the HNO concentration was changed from 3.0 × 10-7 to 2.0 × 10-5 mol·L-1, I 543nm/I 470nm exhibited a satisfactory linear correlation with the concentration of HNO. A detection limit of 7.0 × 10-8 mol·L-1 was obtained. In addition, almost no cell toxicity had been verified for the probe. The probe had been successfully applied to the ratiometric fluorescence imaging of HNO in HepG2 cells.
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Affiliation(s)
- Junhong Xu
- Department
of Dynamical Engineering, North China University
of Water Resources and Electric Power, Zhengzhou 450011, PR China
| | - Yu Bai
- School
of Pharmacy and Chemical Engineering, Zhengzhou
University of Industrial Technology, Zhengzhou 450011, PR China
- School
of Pharmacy, Henan University of Chinese
Medicine, Zhengzhou 450046, PR China
| | - Qiujuan Ma
- School
of Pharmacy, Henan University of Chinese
Medicine, Zhengzhou 450046, PR China
- . Tel.: +86-371-65676656. Fax: +86-371-65680028
| | - Jingguo Sun
- School
of Pharmacy, Henan University of Chinese
Medicine, Zhengzhou 450046, PR China
| | - Meiju Tian
- School
of Pharmacy, Henan University of Chinese
Medicine, Zhengzhou 450046, PR China
| | - Linke Li
- School
of Pharmacy, Henan University of Chinese
Medicine, Zhengzhou 450046, PR China
| | - Nannan Zhu
- School
of Pharmacy, Henan University of Chinese
Medicine, Zhengzhou 450046, PR China
| | - Shuzhen Liu
- School
of Pharmacy, Henan University of Chinese
Medicine, Zhengzhou 450046, PR China
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4
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He S, Zhu J, Xie P, Liu J, Zhang D, Tang J, Ye Y. A novel NIR fluorescent probe for the highly sensitive detection of HNO and its application in bioimaging. NEW J CHEM 2021. [DOI: 10.1039/d1nj04015d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A “naked-eye” HNO probe based on xanthene was obtained.
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Affiliation(s)
- Shenwei He
- Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou, 450001, China
| | - Jianming Zhu
- Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou, 450001, China
| | - Peiyao Xie
- Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou, 450001, China
| | - Jianfei Liu
- Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou, 450001, China
| | - Di Zhang
- Institute of Agricultural Quality Standards and Testing Technology, Henan Academy of Agricultural Sciences, Zhengzhou 450002, China
| | - Jun Tang
- Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou, 450001, China
| | - Yong Ye
- Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou, 450001, China
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5
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Zarenkiewicz J, Khodade VS, Toscano JP. Reaction of Nitroxyl (HNO) with Hydrogen Sulfide and Hydropersulfides. J Org Chem 2020; 86:868-877. [PMID: 33353299 DOI: 10.1021/acs.joc.0c02412] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Nitroxyl (HNO) has gained a considerable amount of attention because of its promising pharmacological effects. The biochemical mechanisms of HNO activity are associated with the modification of regulatory thiol proteins. Recently, several studies have suggested that hydropersulfides (RSSH), presumed signaling products of hydrogen sulfide (H2S)-mediated thiol (RSH) modification, are additional potential targets of HNO. However, the interaction of HNO with reactive sulfur species beyond thiols remains relatively unexplored. Herein, we present characterization of HNO reactivity with H2S and RSSH. The reaction of H2S with HNO leads to the formation of hydrogen polysulfides and sulfur (S8), suggesting a potential role in sulfane sulfur homeostasis. Furthermore, we show that hydropersulfides are more efficient traps for HNO than their thiol counterparts. The reaction of HNO with RSSH at varied stoichiometries has been examined with the observed production of various dialkylpolysulfides (RSSnSR) and other nitrogen-containing dialkylpolysulfide species (RSS-NH-SnR). We do not observe evidence of sulfenylsulfinamide (RS-S(O)-NH2) formation, a pathway expected by analogy with the known reactivity of HNO with thiol.
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Affiliation(s)
- Jessica Zarenkiewicz
- Department of Chemistry, Johns Hopkins University, Baltimore, Maryland 21218, United States
| | - Vinayak S Khodade
- Department of Chemistry, Johns Hopkins University, Baltimore, Maryland 21218, United States
| | - John P Toscano
- Department of Chemistry, Johns Hopkins University, Baltimore, Maryland 21218, United States
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6
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Updating NO •/HNO interconversion under physiological conditions: A biological implication overview. J Inorg Biochem 2020; 216:111333. [PMID: 33385637 DOI: 10.1016/j.jinorgbio.2020.111333] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Revised: 11/13/2020] [Accepted: 12/05/2020] [Indexed: 12/12/2022]
Abstract
Azanone (HNO/NO-), also called nitroxyl, is a highly reactive compound whose biological role is still a matter of debate. A key issue that remains to be clarified regarding HNO and its biological activity is that of its endogenous formation. Given the overlap of the molecular targets and reactivity of nitric oxide (NO•) and HNO, its chemical biology was perceived to be similar to that of NO• as a biological signaling agent. However, despite their closely related reactivity, NO• and HNO's biochemical pathways are quite different. Moreover, the reduction of nitric oxide to azanone is possible but necessarily coupled to other reactions, which drive the reaction forward, overcoming the unfavorable thermodynamic barrier. The mechanism of this NO•/HNO interplay and its downstream effects in different contexts were studied recently, showing that more than fifteen moderate reducing agents react with NO• producing HNO. Particularly, it is known that the reaction between nitric oxide and hydrogen sulfide (H2S) produces HNO. However, this rate constant was not reported yet. In this work, firstly the NO•/H2S effective rate constant was measured as a function of the pH. Then, the implications of these chemical (non-enzymatic), biologically compatible, routes to endogenous HNO formation was discussed. There is no doubt that HNO could be (is?) a new endogenously produced messenger that mediates specific physiological responses, many of which were attributed yet to direct NO• effects.
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7
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Zhang H, Qiao Z, Wei N, Zhang Y, Wang K. A rapid-response and near-infrared fluorescent probe for imaging of nitroxyl in living cells. Talanta 2020; 206:120196. [DOI: 10.1016/j.talanta.2019.120196] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2019] [Revised: 07/25/2019] [Accepted: 07/30/2019] [Indexed: 01/03/2023]
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8
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Nie L, Gao C, Shen T, Jing J, Zhang S, Zhang X. Dual-Site Fluorescent Probe to Monitor Intracellular Nitroxyl and GSH-GSSG Oscillations. Anal Chem 2019; 91:4451-4456. [DOI: 10.1021/acs.analchem.8b05098] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Longxue Nie
- Key Laboratory of Cluster Science of Ministry of Education, Beijing Key Laboratory of Photo-electronic/Electro-photonic Conversion Materials, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, People’s Republic of China
| | - Congcong Gao
- Key Laboratory of Cluster Science of Ministry of Education, Beijing Key Laboratory of Photo-electronic/Electro-photonic Conversion Materials, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, People’s Republic of China
| | - Tianjiao Shen
- Key Laboratory of Cluster Science of Ministry of Education, Beijing Key Laboratory of Photo-electronic/Electro-photonic Conversion Materials, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, People’s Republic of China
| | - Jing Jing
- Key Laboratory of Cluster Science of Ministry of Education, Beijing Key Laboratory of Photo-electronic/Electro-photonic Conversion Materials, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, People’s Republic of China
| | - Shaowen Zhang
- Key Laboratory of Cluster Science of Ministry of Education, Beijing Key Laboratory of Photo-electronic/Electro-photonic Conversion Materials, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, People’s Republic of China
| | - Xiaoling Zhang
- Key Laboratory of Cluster Science of Ministry of Education, Beijing Key Laboratory of Photo-electronic/Electro-photonic Conversion Materials, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, People’s Republic of China
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9
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Fukuto JM. A recent history of nitroxyl chemistry, pharmacology and therapeutic potential. Br J Pharmacol 2019; 176:135-146. [PMID: 29859009 PMCID: PMC6295406 DOI: 10.1111/bph.14384] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2018] [Accepted: 05/23/2018] [Indexed: 12/11/2022] Open
Abstract
Due to the excitement surrounding the discovery of NO as an endogenously generated signalling molecule, a number of other nitrogen oxides were also investigated as possible physiological mediators. Among these was nitroxyl (HNO). Over the past 25 years or so, a significant amount of work by this laboratory and many others has disclosed that HNO possesses unique chemical properties and important pharmacological utility. Indeed, the pharmacological potential for HNO as a treatment for heart failure, among other uses, has garnered this curious molecule a considerable amount of recent attention. This review summarizes the events that led to this recent attention as well as poses important questions that are still to be answered with regards to understanding the chemistry and biology of HNO. LINKED ARTICLES: This article is part of a themed section on Nitric Oxide 20 Years from the 1998 Nobel Prize. To view the other articles in this section visit http://onlinelibrary.wiley.com/doi/10.1111/bph.v176.2/issuetoc.
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Affiliation(s)
- Jon M Fukuto
- Department of ChemistrySonoma State UniversityRohnert ParkCAUSA
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10
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Hamlin TA, Swart M, Bickelhaupt FM. Nucleophilic Substitution (S N 2): Dependence on Nucleophile, Leaving Group, Central Atom, Substituents, and Solvent. Chemphyschem 2018; 19:1315-1330. [PMID: 29542853 PMCID: PMC6001448 DOI: 10.1002/cphc.201701363] [Citation(s) in RCA: 118] [Impact Index Per Article: 19.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2017] [Indexed: 11/12/2022]
Abstract
The reaction potential energy surface (PES), and thus the mechanism of bimolecular nucleophilic substitution (SN 2), depends profoundly on the nature of the nucleophile and leaving group, but also on the central, electrophilic atom, its substituents, as well as on the medium in which the reaction takes place. Here, we provide an overview of recent studies and demonstrate how changes in any one of the aforementioned factors affect the SN 2 mechanism. One of the most striking effects is the transition from a double-well to a single-well PES when the central atom is changed from a second-period (e. g. carbon) to a higher-period element (e.g, silicon, germanium). Variations in nucleophilicity, leaving group ability, and bulky substituents around a second-row element central atom can then be exploited to change the single-well PES back into a double-well. Reversely, these variations can also be used to produce a single-well PES for second-period elements, for example, a stable pentavalent carbon species.
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Affiliation(s)
- Trevor A. Hamlin
- Department of Theoretical Chemistry andAmsterdam Center for Multiscale Modeling (ACMM)Vrije Universiteit AmsterdamDe Boelelaan 10831081 HVAmsterdamThe Netherlands
| | - Marcel Swart
- Department of Theoretical Chemistry andAmsterdam Center for Multiscale Modeling (ACMM)Vrije Universiteit AmsterdamDe Boelelaan 10831081 HVAmsterdamThe Netherlands
- Institut de Química Computacional I Catàlisi and Department de QuímicaUniversitat de Girona17003GironaSpain
- ICREAPg. Lluís Companys 2308010BarcelonaSpain
| | - F. Matthias Bickelhaupt
- Department of Theoretical Chemistry andAmsterdam Center for Multiscale Modeling (ACMM)Vrije Universiteit AmsterdamDe Boelelaan 10831081 HVAmsterdamThe Netherlands
- Institute of Molecules and Materials (IMM)Radboud UniversityHeyendaalseweg 1356525 AJNijmegenThe Netherlands
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11
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Suarez SA, Muñoz M, Alvarez L, Venâncio MF, Rocha WR, Bikiel DE, Marti MA, Doctorovich F. HNO Is Produced by the Reaction of NO with Thiols. J Am Chem Soc 2017; 139:14483-14487. [DOI: 10.1021/jacs.7b06968] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Sebastian A. Suarez
- Departamento
de Química Inorgánica, Analítica y Química
Física, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, INQUIMAE-CONICET, Ciudad Universitaria, Buenos Aires C1428EHA, Argentina
| | - Martina Muñoz
- Departamento
de Química Inorgánica, Analítica y Química
Física, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, INQUIMAE-CONICET, Ciudad Universitaria, Buenos Aires C1428EHA, Argentina
| | - Lucia Alvarez
- Departamento
de Química Inorgánica, Analítica y Química
Física, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, INQUIMAE-CONICET, Ciudad Universitaria, Buenos Aires C1428EHA, Argentina
| | - Mateus F. Venâncio
- Departamento
de Química, Universidade Federal de Minas Gerais, Belo Horizonte 31270-901, Brazil
| | - Willian R. Rocha
- Departamento
de Química, Universidade Federal de Minas Gerais, Belo Horizonte 31270-901, Brazil
| | - Damian E. Bikiel
- Departamento
de Química Inorgánica, Analítica y Química
Física, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, INQUIMAE-CONICET, Ciudad Universitaria, Buenos Aires C1428EHA, Argentina
| | - Marcelo A. Marti
- Departamento
de Química Biológica, Facultad de Ciencias Exactas y
Naturales, Universidad de Buenos Aires, IQUIBICEN-CONICET, Ciudad Universitaria, Buenos
Aires C1428EHA, Argentina
| | - Fabio Doctorovich
- Departamento
de Química Inorgánica, Analítica y Química
Física, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, INQUIMAE-CONICET, Ciudad Universitaria, Buenos Aires C1428EHA, Argentina
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12
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Gunnink LK, Busscher BM, Wodarek JA, Rosette KA, Strohbehn LE, Looyenga BD, Louters LL. Caffeine inhibition of GLUT1 is dependent on the activation state of the transporter. Biochimie 2017; 137:99-105. [PMID: 28322926 DOI: 10.1016/j.biochi.2017.03.011] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2016] [Accepted: 03/15/2017] [Indexed: 10/19/2022]
Abstract
Caffeine has been shown to be a robust uncompetitive inhibitor of glucose uptake in erythrocytes. It preferentially binds to the nucleotide-binding site on GLUT1 in its tetrameric form and mimics the inhibitory action of ATP. Here we demonstrate that caffeine is also a dose-dependent, uncompetitive inhibitor of 2-deoxyglucose (2DG) uptake in L929 fibroblasts. The inhibitory effect on 2DG uptake in these cells was reversible with a rapid onset and was additive to the competitive inhibitory effects of glucose itself, confirming that caffeine does not interfere with glucose binding. We also report for the first time that caffeine inhibition was additive to inhibition by curcumin, suggesting distinct binding sites for curcumin and caffeine. In contrast, caffeine inhibition was not additive to that of cytochalasin B, consistent with previous data that reported that these two inhibitors have overlapping binding sites. More importantly, we show that the magnitude of maximal caffeine inhibition in L929 cells is much lower than in erythrocytes (35% compared to 90%). Two epithelial cell lines, HCLE and HK2, have both higher concentrations of GLUT1 and increased basal 2DG uptake (3-4 fold) compared to L929 cells, and subsequently display greater maximal inhibition by caffeine (66-70%). Interestingly, activation of 2DG uptake (3-fold) in L929 cells by glucose deprivation shifted the responsiveness of these cells to caffeine inhibition (35%-70%) without a change in total GLUT1 concentration. These data indicate that the inhibition of caffeine is dependent on the activity state of GLUT1, not merely on the concentration.
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Affiliation(s)
- Leesha K Gunnink
- Department of Chemistry and Biochemistry, Calvin College, Grand Rapids, MI 49546, USA
| | - Brianna M Busscher
- Department of Chemistry and Biochemistry, Calvin College, Grand Rapids, MI 49546, USA
| | - Jeremy A Wodarek
- Department of Chemistry and Biochemistry, Calvin College, Grand Rapids, MI 49546, USA
| | - Kylee A Rosette
- Department of Chemistry and Biochemistry, Calvin College, Grand Rapids, MI 49546, USA
| | - Lauren E Strohbehn
- Department of Chemistry and Biochemistry, Calvin College, Grand Rapids, MI 49546, USA
| | - Brendan D Looyenga
- Department of Chemistry and Biochemistry, Calvin College, Grand Rapids, MI 49546, USA
| | - Larry L Louters
- Department of Chemistry and Biochemistry, Calvin College, Grand Rapids, MI 49546, USA.
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13
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Wu X, Wu L, Wu IC, Chiu DT. Copper (II)-doped semiconducting polymer dots for nitroxyl imaging in live cells. RSC Adv 2016; 6:103618-103621. [PMID: 28529727 PMCID: PMC5436714 DOI: 10.1039/c6ra20439b] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
The first nanoparticle-based fluorescent probe for the specific detection of nitroxyl (HNO) was designed and constructed by doping copper(II) into semiconducting polymer dots (Pdots). The probe turns on and fluoresces in the presence of HNO. We used the new sensor to monitor changes of HNO levels in live cells.
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Affiliation(s)
- Xu Wu
- Department of Chemistry and Bioengineering, University of Washington, Seattle, WA, USA
| | - Li Wu
- Department of Chemistry and Bioengineering, University of Washington, Seattle, WA, USA
| | - I-Che Wu
- Department of Chemistry and Bioengineering, University of Washington, Seattle, WA, USA
| | - Daniel T. Chiu
- Department of Chemistry and Bioengineering, University of Washington, Seattle, WA, USA
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14
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Bianco CL, Moore CD, Fukuto JM, Toscano JP. Selenols are resistant to irreversible modification by HNO. Free Radic Biol Med 2016; 99:71-78. [PMID: 27424037 DOI: 10.1016/j.freeradbiomed.2016.07.008] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/28/2016] [Revised: 07/09/2016] [Accepted: 07/12/2016] [Indexed: 11/26/2022]
Abstract
The discovery of nitric oxide (NO) as an endogenously generated signaling species in mammalian cells has spawned a vast interest in the study of the chemical biology of nitrogen oxides. Of these, nitroxyl (azanone, HNO) has gained much attention for its potential role as a therapeutic for cardiovascular disease. Known targets of HNO include hemes/heme proteins and thiols/thiol-containing proteins. Recently, due to their roles in redox signaling and cellular defense, selenols and selenoproteins have also been speculated to be additional potential targets of HNO. Indeed, as determined in the current work, selenols are targeted by HNO. Such reactions appear to result only in formation of diselenide products, which can be easily reverted back to the free selenol. This characteristic is distinct from the reaction of HNO with thiols/thiolproteins. These findings suggest that, unlike thiolproteins, selenoproteins are resistant to irreversible oxidative modification, support that Nature may have chosen to use selenium instead of sulfur in certain biological systems for its enhanced resistance to electrophilic and oxidative modification.
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Affiliation(s)
- Christopher L Bianco
- Department of Chemistry, Johns Hopkins University, 3400 N. Charles St., Baltimore, MD 21218, USA
| | - Cathy D Moore
- Department of Chemistry, Johns Hopkins University, 3400 N. Charles St., Baltimore, MD 21218, USA
| | - Jon M Fukuto
- Department of Chemistry, Sonoma State University, 1801 E. Cotati Ave., Rohnert Park, CA 94928, USA
| | - John P Toscano
- Department of Chemistry, Johns Hopkins University, 3400 N. Charles St., Baltimore, MD 21218, USA.
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15
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HNO/Thiol Biology as a Therapeutic Target. OXIDATIVE STRESS IN APPLIED BASIC RESEARCH AND CLINICAL PRACTICE 2016. [DOI: 10.1007/978-3-319-30705-3_14] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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16
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Nitroxyl (HNO): A Reduced Form of Nitric Oxide with Distinct Chemical, Pharmacological, and Therapeutic Properties. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2015; 2016:4867124. [PMID: 26770654 PMCID: PMC4685437 DOI: 10.1155/2016/4867124] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/05/2015] [Revised: 08/14/2015] [Accepted: 09/01/2015] [Indexed: 01/18/2023]
Abstract
Nitroxyl (HNO), the one-electron reduced form of nitric oxide (NO), shows a distinct chemical and biological profile from that of NO. HNO is currently being viewed as a vasodilator and positive inotropic agent that can be used as a potential treatment for heart failure. The ability of HNO to react with thiols and thiol containing proteins is largely used to explain the possible biological actions of HNO. Herein, we summarize different aspects related to HNO including HNO donors, chemistry, biology, and methods used for its detection.
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17
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Affiliation(s)
- Gizem Keceli
- Department
of Chemistry, Johns Hopkins University, Baltimore, Maryland 21218, United States
| | - John P. Toscano
- Department
of Chemistry, Johns Hopkins University, Baltimore, Maryland 21218, United States
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18
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Mao GJ, Zhang XB, Shi XL, Liu HW, Wu YX, Zhou LY, Tan W, Yu RQ. A highly sensitive and reductant-resistant fluorescent probe for nitroxyl in aqueous solution and serum. Chem Commun (Camb) 2014; 50:5790-2. [PMID: 24756360 DOI: 10.1039/c4cc01440e] [Citation(s) in RCA: 65] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
A novel coumarin-based fluorescent probe, P-CM, for quantitative detection of nitroxyl (HNO) was developed. P-CM exhibits a selective response to HNO over other biological reductants and was also applied for quantitative detection of HNO in bovine serum with satisfactory results.
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Affiliation(s)
- Guo-Jiang Mao
- Molecular Science and Biomedicine Laboratory, State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, College of Biology, Collaborative Innovation Center for Molecular Engineering and Theranostics, Hunan University, Changsha 410082, China.
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19
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Liu C, Wu H, Wang Z, Shao C, Zhu B, Zhang X. A fast-response, highly sensitive and selective fluorescent probe for the ratiometric imaging of nitroxyl in living cells. Chem Commun (Camb) 2014; 50:6013-6. [DOI: 10.1039/c4cc00980k] [Citation(s) in RCA: 94] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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20
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Aizawa K, Nakagawa H, Matsuo K, Kawai K, Ieda N, Suzuki T, Miyata N. Piloty’s acid derivative with improved nitroxyl-releasing characteristics. Bioorg Med Chem Lett 2013; 23:2340-3. [DOI: 10.1016/j.bmcl.2013.02.062] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2012] [Revised: 02/06/2013] [Accepted: 02/13/2013] [Indexed: 10/27/2022]
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21
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Wang C, Yu HZ, Fu Y, Guo QX. Mechanism of arylboronic acid-catalyzed amidation reaction between carboxylic acids and amines. Org Biomol Chem 2013; 11:2140-6. [DOI: 10.1039/c3ob27367a] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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22
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Louters LL, Scripture JP, Kuipers DP, Gunnink SM, Kuiper BD, Alabi OD. Hydroxylamine acutely activates glucose uptake in L929 fibroblast cells. Biochimie 2012. [PMID: 23201556 DOI: 10.1016/j.biochi.2012.11.006] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Nitroxyl (HNO) has a unique, but varied, set of biological properties including beneficial effects on cardiac contractility and stimulation of glucose uptake by GLUT1. These biological effects are largely initiated by HNO's reaction with cysteine residues of key proteins. The intracellular production of HNO has not yet been demonstrated, but the small molecule, hydroxylamine (HA), has been suggested as possible intracellular source. We examined the effects of this molecule on glucose uptake in L929 fibroblast cells. HA activates glucose uptake from 2 to 5-fold within two minutes. Prior treatment with thiol-active compounds, such as iodoacetamide (IA), cinnamaldehyde (CA), or phenylarsine oxide (PAO) blocks HA-activation of glucose uptake. Incubation of HA with the peroxidase inhibitor, sodium azide, also blocks the stimulatory effects of HA. This suggests that HA is oxidized to HNO by L929 fibroblast cells, which then reacts with cysteine residues to exert its stimulatory effects. The data suggest that GLUT1 is acutely activated in L929 cells by modification of cysteine residues, possibly the formation of a disulfide bond within GLUT1 itself.
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Affiliation(s)
- Larry L Louters
- Department of Chemistry and Biochemistry, Calvin College, Grand Rapids, MI 49546, USA.
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23
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Zhang Y. Computational investigations of HNO in biology. J Inorg Biochem 2012; 118:191-200. [PMID: 23103077 DOI: 10.1016/j.jinorgbio.2012.09.023] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2012] [Revised: 09/01/2012] [Accepted: 09/27/2012] [Indexed: 10/27/2022]
Abstract
HNO (nitroxyl) has been found to have many physiological effects in numerous biological processes. Computational investigations have been employed to help understand the structural properties of HNO complexes and HNO reactivities in some interesting biologically relevant systems. The following computational aspects were reviewed in this work: 1) structural and energetic properties of HNO isomers; 2) interactions between HNO and non-metal molecules; 3) structural and spectroscopic properties of HNO metal complexes; 4) HNO reactions with biologically important non-metal systems; 5) involvement of HNO in reactions of metal complexes and metalloproteins. Results indicate that computational investigations are very helpful to elucidate interesting experimental phenomena and provide new insights into unique structural, spectroscopic, and mechanistic properties of HNO involvement in biology.
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Affiliation(s)
- Yong Zhang
- Department of Chemistry, Chemical Biology, and Biomedical Engineering, Stevens Institute of Technology, 1 Castle Point on Hudson, Hoboken, NJ 07030, USA.
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24
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Ren X, Yuan Y, Ju Y, Wang H. Oxidation Ability of CO2for the Transformation of Cinnamic Aldehydes to Acids Catalyzed by N-Heterocyclic Carbene: Combining Computational and Experimental Studies. ChemCatChem 2012. [DOI: 10.1002/cctc.201200529] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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25
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Abstract
Sulfinamide [RS(O)NH(2)] formation is known to occur upon exposure of cysteine residues to nitroxyl (HNO), which has received recent attention as a potential heart failure therapeutic. Because this modification can alter protein structure and function, we have examined the reactivity of sulfinamides in several systems, including a small organic molecule, peptides, and a protein. Although it has generally been assumed that this thiol to sulfinamide modification is irreversible, we show that sulfinamides can be reduced back to the free thiol in the presence of excess thiol at physiological pH and temperature. We have examined this sulfinamide reduction both in peptides, where a cyclic intermediate analogous to that proposed for asparagine deamidation reactions potentially can contribute, and in a small organic molecule, where the mechanism is restricted to a direct thiolysis. These studies suggest that the contribution from the cyclic intermediate becomes more important in environments with lower dielectric constants. In addition, although sulfinic acid [RS(O)OH] formation is observed upon prolonged incubations in water, reduction of sulfinamides is found to dominate in the presence of thiols. Finally, studies with the cysteine protease, papain, suggest that the reduction of sulfinamide to the free thiol is viable in a protein environment.
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Affiliation(s)
- Gizem Keceli
- Department of Chemistry, Johns Hopkins University, Baltimore, MD 21218, USA
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26
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Salie MJ, Oram DS, Kuipers DP, Scripture JP, Chenge J, MacDonald GJ, Louters LL. Nitroxyl (HNO) acutely activates the glucose uptake activity of GLUT1. Biochimie 2011; 94:864-9. [PMID: 22182490 DOI: 10.1016/j.biochi.2011.12.005] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2011] [Accepted: 12/05/2011] [Indexed: 10/14/2022]
Abstract
Nitroxyl (HNO) is a molecule of significant interest due to its unique pharmacological properties, particularly within the cardiovascular system. A large portion of HNO biological effects can be attributed to its reactivity with protein thiols, where it can generate disulfide bonds. Evidence from studies in erythrocytes suggests that the activity of GLUT1 is enhanced by the formation of an internal disulfide bond. However, there are no reports that document the effects of HNO on glucose uptake. Therefore, we examined the acute effects of Angeli's salt (AS), a HNO donor, on glucose uptake activity of GLUT1 in L929 fibroblast cells. We report that AS stimulates glucose uptake with a maximum effective concentration of 5.0 mM. An initial 7.2-fold increase occurs within 2 min, which decreases and plateaus to a 4.0-fold activation after 10 min. About 60% of the 4.0-fold activation recovers within 10 min, and 40% remains after an hour. The activation is blocked by the pretreatment of cells with thiol-reactive compounds, iodoacetamide (0.75 mM), cinnamaldehyde (2.0 mM), and phenylarsine oxide (10 μM). The effects of AS are not additive to the stimulatory effects of other acute activators of glucose uptake in L929 cells, such as azide (5 mM), berberine (50 μM), or glucose deprivation. These data suggest that GLUT1 is acutely activated in L929 cells by the formation of a disulfide bond, likely within GLUT1 itself.
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Affiliation(s)
- Matthew J Salie
- Department of Chemistry and Biochemistry, Calvin College, Grand Rapids, MI 49546, USA
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27
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Flores-Santana W, Salmon DJ, Donzelli S, Switzer CH, Basudhar D, Ridnour L, Cheng R, Glynn SA, Paolocci N, Fukuto JM, Miranda KM, Wink DA. The specificity of nitroxyl chemistry is unique among nitrogen oxides in biological systems. Antioxid Redox Signal 2011; 14:1659-74. [PMID: 21235346 PMCID: PMC3070000 DOI: 10.1089/ars.2010.3841] [Citation(s) in RCA: 78] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
The importance of nitric oxide in mammalian physiology has been known for nearly 30 years. Similar attention for other nitrogen oxides such as nitroxyl (HNO) has been more recent. While there has been speculation as to the biosynthesis of HNO, its pharmacological benefits have been demonstrated in several pathophysiological settings such as cardiovascular disorders, cancer, and alcoholism. The chemical biology of HNO has been identified as related to, but unique from, that of its redox congener nitric oxide. A summary of these findings as well as a discussion of possible endogenous sources of HNO is presented in this review.
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Affiliation(s)
- Wilmarie Flores-Santana
- Radiation Biology Branch, National Cancer Institute, National Institutes of Health, Bethesda, Maryland 20892, USA
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28
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Wang C, Guo Q, Fu Y. Theoretical Analysis of the Detailed Mechanism of Native Chemical Ligation Reactions. Chem Asian J 2011; 6:1241-51. [DOI: 10.1002/asia.201000760] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2010] [Indexed: 12/22/2022]
Affiliation(s)
- Chen Wang
- Department of Chemistry, University of Science and Technology of China, Hefei 230026 (China), Fax: (+86) 551‐3606689
| | - Qing‐Xiang Guo
- Department of Chemistry, University of Science and Technology of China, Hefei 230026 (China), Fax: (+86) 551‐3606689
| | - Yao Fu
- Department of Chemistry, University of Science and Technology of China, Hefei 230026 (China), Fax: (+86) 551‐3606689
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