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Zhang L, Chen M, Li Z, Teng Y, Wang G, Xue Y. Photophysical properties and sensing mechanism of fluorescent coumarin–chalcone hybrid for biothiols: A theoretical study. J PHYS ORG CHEM 2022. [DOI: 10.1002/poc.4324] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Ling Zhang
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, School of Pharmacy Xuzhou Medical University Xuzhou Jiangsu China
- NHC Key Laboratory of Nuclear Medicine, Jiangsu Key Laboratory of Molecular Nuclear Medicine Jiangsu Institute of Nuclear Medicine Wuxi Jiangsu China
| | - Mohan Chen
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, School of Pharmacy Xuzhou Medical University Xuzhou Jiangsu China
| | - Zheng Li
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, School of Pharmacy Xuzhou Medical University Xuzhou Jiangsu China
| | - Yangxin Teng
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, School of Pharmacy Xuzhou Medical University Xuzhou Jiangsu China
| | - Guirong Wang
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, School of Pharmacy Xuzhou Medical University Xuzhou Jiangsu China
| | - Yunsheng Xue
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, School of Pharmacy Xuzhou Medical University Xuzhou Jiangsu China
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2
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Lan JS, Zeng RF, Liu Y, Xiang YW, Jiang XY, Liu L, Xie SS, Ding Y, Zhang T. A near-infrared Nile red fluorescent probe for the discrimination of biothiols by dual-channel response and its bioimaging applications in living cells and animals. Analyst 2019; 144:3676-3684. [DOI: 10.1039/c9an00280d] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Biothiols, including cysteine (Cys), homocysteine (Hcy), glutathione (GSH) and H2S, play important roles in human physiological processes.
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Affiliation(s)
- Jin-Shuai Lan
- Experiment Center of Teaching & Learning
- Shanghai University of Traditional Chinese Medicine
- Shanghai 201203
- China
| | - Rui-Feng Zeng
- School of Pharmacy
- Shanghai University of Traditional Chinese Medicine
- Shanghai 201203
- China
| | - Yun Liu
- Experiment Center of Teaching & Learning
- Shanghai University of Traditional Chinese Medicine
- Shanghai 201203
- China
| | - Yan-Wei Xiang
- Headmaster's office
- Shanghai University of Traditional Chinese Medicine
- Shanghai
- China
| | - Xiao-yi Jiang
- School of Pharmacy
- Shanghai University of Traditional Chinese Medicine
- Shanghai 201203
- China
| | - Li Liu
- School of Pharmacy
- Shanghai University of Traditional Chinese Medicine
- Shanghai 201203
- China
| | - Sai-Sai Xie
- National Pharmaceutical Engineering Center for Solid Preparation in Chinese Herbal Medicine
- Jiangxi University of Traditional Chinese Medicine
- Nanchang 330006
- China
| | - Yue Ding
- Experiment Center of Teaching & Learning
- Shanghai University of Traditional Chinese Medicine
- Shanghai 201203
- China
| | - Tong Zhang
- Experiment Center of Teaching & Learning
- Shanghai University of Traditional Chinese Medicine
- Shanghai 201203
- China
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3
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Selective Voltammetric Determination of Sulfur-Containing Amino Acids in Drugs and Vitamin Complexes on an Electrode Modified by a Ruthenium-Hexachloroplatinate Film. Pharm Chem J 2018. [DOI: 10.1007/s11094-018-1780-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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4
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Zeng RF, Lan JS, Li XD, Liang HF, Liao Y, Lu YJ, Zhang T, Ding Y. A Fluorescent Coumarin-Based Probe for the Fast Detection of Cysteine with Live Cell Application. Molecules 2017; 22:E1618. [PMID: 28954423 PMCID: PMC6151380 DOI: 10.3390/molecules22101618] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2017] [Revised: 09/19/2017] [Accepted: 09/20/2017] [Indexed: 12/14/2022] Open
Abstract
A new coumarin-based fluorescent probe, containing an allylic esters group, has been designed and synthesized for sensing cysteine in physiological pH. In this fluorescent probe, the coumarin was applied as the fluorophore and an allylic esters group was combined as both a fluorescence quencher and a recognition unit. The probe can selectively and sensitively detect cysteine (Cys) over homocysteine, glutathione, and other amino acids, and has a rapid response time of 30 min and a low detection limit of 47.7 nM. In addition, the probe could be applied for cell imaging with low cytotoxicity.
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Affiliation(s)
- Rui-Feng Zeng
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China.
| | - Jin-Shuai Lan
- Experiment Center of Teaching & Learning, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China.
| | - Xiao-Die Li
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China.
| | - Hui-Fen Liang
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China.
| | - Yan Liao
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China.
| | - Ying-Jie Lu
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China.
| | - Tong Zhang
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China.
| | - Yue Ding
- Experiment Center of Teaching & Learning, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China.
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5
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Pérez-Ràfols C, Gómez A, Serrano N, Díaz-Cruz JM, Ariño C, Esteban M. A Voltammetric Electronic Tongue Based on Commercial Screen-printed Electrodes for the Analysis of Aminothiols by Differential Pulse Voltammetry. ELECTROANAL 2017. [DOI: 10.1002/elan.201700053] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Clara Pérez-Ràfols
- Department of Chemical Engineering and Analytical Chemistry, Faculty of Chemistry; University of Barcelona.; Martí i Franquès 1-11 E-08028 Barcelona Spain)
| | - Ana Gómez
- Department of Chemical Engineering and Analytical Chemistry, Faculty of Chemistry; University of Barcelona.; Martí i Franquès 1-11 E-08028 Barcelona Spain)
| | - Núria Serrano
- Department of Chemical Engineering and Analytical Chemistry, Faculty of Chemistry; University of Barcelona.; Martí i Franquès 1-11 E-08028 Barcelona Spain)
| | - José Manuel Díaz-Cruz
- Department of Chemical Engineering and Analytical Chemistry, Faculty of Chemistry; University of Barcelona.; Martí i Franquès 1-11 E-08028 Barcelona Spain)
| | - Cristina Ariño
- Department of Chemical Engineering and Analytical Chemistry, Faculty of Chemistry; University of Barcelona.; Martí i Franquès 1-11 E-08028 Barcelona Spain)
| | - Miquel Esteban
- Department of Chemical Engineering and Analytical Chemistry, Faculty of Chemistry; University of Barcelona.; Martí i Franquès 1-11 E-08028 Barcelona Spain)
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6
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Pedroza RHP, Serrano N, Díaz-Cruz JM, Ariño C, Esteban M. Integration of Commercial Screen-printed Electrodes into a Voltammetric Electronic Tongue for the Analysis of Aminothiols. ELECTROANAL 2016. [DOI: 10.1002/elan.201501112] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Ricardo H. P. Pedroza
- Biological Chemistry and Chemometrics; Institute of Chemistry; Federal University of Rio Grande do Norte; 59072-970 Natal-RN Brazil
| | - Núria Serrano
- Departament de Química Analítica; Facultat de Química; Universitat de Barcelona; Martí i Franquès 1-11 E-08028 Barcelona Spain
| | - José Manuel Díaz-Cruz
- Departament de Química Analítica; Facultat de Química; Universitat de Barcelona; Martí i Franquès 1-11 E-08028 Barcelona Spain
| | - Cristina Ariño
- Departament de Química Analítica; Facultat de Química; Universitat de Barcelona; Martí i Franquès 1-11 E-08028 Barcelona Spain
| | - Miquel Esteban
- Departament de Química Analítica; Facultat de Química; Universitat de Barcelona; Martí i Franquès 1-11 E-08028 Barcelona Spain
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7
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Mohapatra S, Nandi S, Chowdhury R, Das G, Ghosh S, Bhattacharyya K. Spectral mapping of 3D multi-cellular tumor spheroids: time-resolved confocal microscopy. Phys Chem Chem Phys 2016; 18:18381-90. [DOI: 10.1039/c6cp02748b] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
The tumor micro-environment of 3D multicellular spheroids and their interaction with a drug molecule are studied using time resolved confocal microscopy.
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Affiliation(s)
- Saswat Mohapatra
- Organic and Medicinal Chemistry Division
- CSIR-Indian Institute of Chemical Biology
- Kolkata-700032
- India
- Academy of Scientific and Innovative Research (AcSIR)
| | - Somen Nandi
- Department of Physical Chemistry
- Indian Association for the Cultivation of Science
- Kolkata 700032
- India
| | - Rajdeep Chowdhury
- Department of Physical Chemistry
- Indian Association for the Cultivation of Science
- Kolkata 700032
- India
| | - Gaurav Das
- Organic and Medicinal Chemistry Division
- CSIR-Indian Institute of Chemical Biology
- Kolkata-700032
- India
| | - Surajit Ghosh
- Organic and Medicinal Chemistry Division
- CSIR-Indian Institute of Chemical Biology
- Kolkata-700032
- India
- Academy of Scientific and Innovative Research (AcSIR)
| | - Kankan Bhattacharyya
- Department of Physical Chemistry
- Indian Association for the Cultivation of Science
- Kolkata 700032
- India
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8
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Ni P, Sun Y, Dai H, Hu J, Jiang S, Wang Y, Li Z. Highly sensitive and selective colorimetric detection of glutathione based on Ag [I] ion–3,3′,5,5′-tetramethylbenzidine (TMB). Biosens Bioelectron 2015; 63:47-52. [DOI: 10.1016/j.bios.2014.07.021] [Citation(s) in RCA: 110] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2014] [Revised: 06/25/2014] [Accepted: 07/08/2014] [Indexed: 10/25/2022]
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9
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Chemical etching of bovine serum albumin-protected Au25 nanoclusters for label-free and separation-free detection of cysteamine. Biosens Bioelectron 2014; 66:155-61. [PMID: 25460897 DOI: 10.1016/j.bios.2014.10.073] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2014] [Revised: 10/18/2014] [Accepted: 10/31/2014] [Indexed: 11/23/2022]
Abstract
This study describes a novel Au nanocluster-based fluorescent sensor for label-free, separation-free and selective detection of cysteamine (CSH). The sensing mechanism is based on CSH etching-induced fluorescence quenching of the bovine serum albumin-protected Au25 nanoclusters (BSAGNCs). A series of characterizations is carried out towards a better understanding of the CSH-induced fluorescence quenching of the BSAGNCs. It is found that CSH can etch the Au25 nanoclusters, exhibiting the potent etching activity. Other thiol-containing compounds such as glutathione and cysteine and other 19 natural amino acids do not interfere with such CSH-induced etching process. The decreases in fluorescence intensity of the BSAGNCs allow sensitive detection of free CSH in the range of 500-10,000nM. The detection limit for CSH is 150nM (S/N=3). The spiked human serum samples can be analyzed with satisfactory results.
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10
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Feng L, Xie A, Hu X, Liu Y, Zhang J, Li S, Dong W. A releasable disulfide carbonate linker for polyethyleneimine (PEI)-based gene vectors. NEW J CHEM 2014. [DOI: 10.1039/c4nj00699b] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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11
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Kakhki S, Shams E, Barsan MM. Electrocatalytic Oxidation of Cysteine at a CoSalophen/n-(butyl)4SiW12O40Carbon Paste Electrode. ELECTROANAL 2013. [DOI: 10.1002/elan.201300235] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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12
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Sarakbi A, Aydogmus Z, Dago A, Mertens D, Dewert JY, Kauffmann JM. Determination of aminothiols by liquid chromatography with amperometric detection at a silver electrode: application to white wines. Anal Chim Acta 2013; 786:22-8. [PMID: 23790287 DOI: 10.1016/j.aca.2013.04.070] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2013] [Revised: 04/26/2013] [Accepted: 04/29/2013] [Indexed: 11/19/2022]
Abstract
Liquid chromatography coupled to a silver electrode based flow-through amperometric detector (LC-EC-Ag) was developed for the determination of aminothiols in white wines. The C18 reversed phase LC system operated in the isocratic mode at 0.7 mL min(-1) and used an acidic mobile phase composed of formic acid, EDTA, sodium nitrate, sodium hydroxide, and methanol 1% (v/v) at pH 4.5. The working electrode operated at 0.08 V vs Ag/AgCl, 3M KCl and its manual cleaning was realized once a month by smoothing on a polishing cloth. The analyzed aminothiols were resolved and eluted within 4 min, and all standard curves were linear in the range 2×10(-7)-2×10(-5) M. The analyzed wine samples needed no preparation other than dilution with the mobile phase. The concentration of cysteine (CYS), homocysteine (HCYS), glutathione (GSH) and N-acetylcysteine (NAC) in bottled white wines, determined by the method of standard addition, was found to be in the low μM range (0.2-2 mg L(-1)) depending on the wine type and its age.
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Affiliation(s)
- Ahmad Sarakbi
- Université Libre de Bruxelles, Faculty of Pharmacy, Brussels, Belgium
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13
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Quantification of thiols and disulfides. Biochim Biophys Acta Gen Subj 2013; 1840:838-46. [PMID: 23567800 DOI: 10.1016/j.bbagen.2013.03.031] [Citation(s) in RCA: 238] [Impact Index Per Article: 21.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2013] [Revised: 03/25/2013] [Accepted: 03/28/2013] [Indexed: 11/23/2022]
Abstract
BACKGROUND Disulfide bond formation is a key posttranslational modification, with implications for structure, function and stability of numerous proteins. While disulfide bond formation is a necessary and essential process for many proteins, it is deleterious and disruptive for others. Cells go to great lengths to regulate thiol-disulfide bond homeostasis, typically with several, apparently redundant, systems working in parallel. Dissecting the extent of oxidation and reduction of disulfides is an ongoing challenge due, in part, to the facility of thiol/disulfide exchange reactions. SCOPE OF REVIEW In the present account, we briefly survey the toolbox available to the experimentalist for the chemical determination of thiols and disulfides. We have chosen to focus on the key chemical aspects of current methodology, together with identifying potential difficulties inherent in their experimental implementation. MAJOR CONCLUSIONS While many reagents have been described for the measurement and manipulation of the redox status of thiols and disulfides, a number of these methods remain underutilized. The ability to effectively quantify changes in redox conditions in living cells presents a continuing challenge. GENERAL SIGNIFICANCE Many unresolved questions in the metabolic interconversion of thiols and disulfides remain. For example, while pool sizes of redox pairs and their intracellular distribution are being uncovered, very little is known about the flux in thiol-disulfide exchange pathways. New tools are needed to address this important aspect of cellular metabolism. This article is part of a Special Issue entitled Current methods to study reactive oxygen species - pros and cons and biophysics of membrane proteins. Guest Editor: Christine Winterbourn.
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14
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Synchrotron radiation induced X-ray emission studies of the antioxidant mechanism of the organoselenium drug ebselen. J Biol Inorg Chem 2012; 17:589-98. [DOI: 10.1007/s00775-012-0879-y] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2011] [Accepted: 01/23/2012] [Indexed: 01/30/2023]
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15
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Ma Y, Zhang Z, Ren C, Liu G, Chen X. A novel colorimetric determination of reduced glutathione in A549 cells based on Fe3O4 magnetic nanoparticles as peroxidase mimetics. Analyst 2012; 137:485-9. [DOI: 10.1039/c1an15718c] [Citation(s) in RCA: 94] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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16
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17
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Hsiao YP, Su WY, Cheng JR, Cheng SH. Electrochemical determination of cysteine based on conducting polymers/gold nanoparticles hybrid nanocomposites. Electrochim Acta 2011. [DOI: 10.1016/j.electacta.2011.06.031] [Citation(s) in RCA: 73] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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18
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Sameenoi Y, Mensack MM, Boonsong K, Ewing R, Dungchai W, Chailapakul O, Cropek DM, Henry CS. Poly(dimethylsiloxane) cross-linked carbon paste electrodes for microfluidic electrochemical sensing. Analyst 2011; 136:3177-84. [DOI: 10.1039/c1an15335h] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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19
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Fabrication and characterization of molybdenum(VI)complex-TiO2 nanoparticles modified electrode for the electrocatalytic determination of L-cysteine. JOURNAL OF THE SERBIAN CHEMICAL SOCIETY 2011. [DOI: 10.2298/jsc100504042m] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
A novel voltammetric sensor for the determination of L-cysteine (L-Cys) was
fabricated based on a TiO2 nanoparticles/bis
[bis(salicylidene-1,4-phenylenediamine)-molybdenum(VI)] carbon paste
electrode. The electrochemical behavior of the sensor was investigated in
detail by cyclic voltammetry. The apparent electron transfer rate constant
(ks) and charge transfer coefficient (?) of the TiO2 nanoparticles /
molybdenum(VI) complex/CPE were also determined by cyclic voltammetry and
found to be about 4.53 s?1 and 0.54, respectively. The sensor displayed good
electrocatalytic activity towards the oxidation of LCys. The peak potential
for the oxidation of L-Cys was lowered by at least 130 mV compared with that
obtained at an unmodified CPE. Under optimal conditions, the linear range
spans L-Cys concentrations from 1.5?10?6 M to 1.2?10?3 M and the detection
limit was 0.70 ? 0.01 ?M at a signal-to-noise ratio of 2. In addition, the
sensor showed good stability and reproducibility.
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Wang Y, Lu J, Tang L, Chang H, Li J. Graphene Oxide Amplified Electrogenerated Chemiluminescence of Quantum Dots and Its Selective Sensing for Glutathione from Thiol-Containing Compounds. Anal Chem 2009; 81:9710-5. [DOI: 10.1021/ac901935a] [Citation(s) in RCA: 365] [Impact Index Per Article: 24.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Ying Wang
- Department of Chemistry, Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology, Tsinghua University, Beijing 100084, China
| | - Jin Lu
- Department of Chemistry, Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology, Tsinghua University, Beijing 100084, China
| | - Longhua Tang
- Department of Chemistry, Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology, Tsinghua University, Beijing 100084, China
| | - Haixin Chang
- Department of Chemistry, Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology, Tsinghua University, Beijing 100084, China
| | - Jinghong Li
- Department of Chemistry, Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology, Tsinghua University, Beijing 100084, China
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21
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Competitive binding of cadmium by plant thiols: an electrochemical study assisted by multivariate curve resolution. Anal Bioanal Chem 2009; 394:1137-45. [DOI: 10.1007/s00216-009-2791-z] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2009] [Revised: 04/01/2009] [Accepted: 04/02/2009] [Indexed: 10/20/2022]
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22
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Chen Z, Zu Y. Electrochemical recognition of single-methylene difference between cysteine and homocysteine. J Electroanal Chem (Lausanne) 2008. [DOI: 10.1016/j.jelechem.2008.07.015] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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23
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Étienne S, Matt M, Oster T, Samadi M, Beley M. Preparation and characterisation of a quinone-functionalised polythiophene film on a modified electrode. Application to the potentiometric determination of glutathione and cysteine concentrations. Tetrahedron 2008. [DOI: 10.1016/j.tet.2008.07.041] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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24
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Su WY, Cheng SH. Electrocatalysis and sensitive determination of cysteine at poly(3,4-ethylenedioxythiophene)-modified screen-printed electrodes. Electrochem commun 2008. [DOI: 10.1016/j.elecom.2008.04.013] [Citation(s) in RCA: 62] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
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Kruusma J, Rhodes A, Bhatia R, Williams JAG, Benham AM, Kataky R. The Effect of a Hydrogen Bonding Environment (Dimethyl Sulfoxide) on the Ionisation and Redox Properties of the Thiol Group in Cysteine and a Protein Disulfide Isomerase Mimic (Vectrase). J SOLUTION CHEM 2007. [DOI: 10.1007/s10953-007-9123-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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28
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Obirai JC, Nyokong T. Thiol oxidation at 2-mercaptopyrimidine-appended cobalt phthalocyanine modified glassy carbon electrodes. J Electroanal Chem (Lausanne) 2007. [DOI: 10.1016/j.jelechem.2006.10.033] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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29
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Scampicchio M, Lawrence N, Arecchi A, Cosio S, Mannino S. Voltammetric Detection of Free Sulfhydryl Compounds in Food Flours. ELECTROANAL 2007. [DOI: 10.1002/elan.200603709] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Abstract
Thioredoxin and glutaredoxin systems in mammalian cells utilize thiol and selenol groups to maintain a reducing intracellular redox state acting as antioxidants and reducing agents in redox signaling with oxidizing reactive oxygen species. During the last decade, the functional roles of thioredoxin in particular have continued to expand, also including novel functions such as a secreted growth factor or a chemokine for immune cells. The role of thioredoxin and glutaredoxin in antioxidant defense and the role of thioredoxin in controlling recruitment of inflammatory cells offer potential use in clinical therapy. The fundamental differences between bacterial and mammalian thioredoxin reductases offer new principles for treatment of infections. Clinical drugs already in use target the active site selenol in thioredoxin reductases, inducing cell death in tumor cells. Thioredoxin and binding proteins (ASK1 and TBP2) appear to control apoptosis or metabolic states such as carbohydrate and lipid metabolism related to diseases such as diabetes and atherosclerosis.
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Affiliation(s)
- Christopher Horst Lillig
- The Medical Nobel Institute for Biochemistry, Department of Medical Biochemistry and Biophysics, Karolinska Institute, Stockholm, Sweden
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