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Liu S, Xu J, Ma Q, Li L, Mao G, Wang G, Wu X. A rhodamine-based fluorescent probe used to determine nitroxyl (HNO) in lysosomes. Anal Biochem 2024; 692:115552. [PMID: 38718956 DOI: 10.1016/j.ab.2024.115552] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2024] [Revised: 04/15/2024] [Accepted: 04/29/2024] [Indexed: 06/16/2024]
Abstract
The reactive nitrogen species (RNS) in lysosomes play a major role during the regulation of lysosomal microenvironment. Nitroxyl (HNO) belongs to active nitrogen species (RNS) and is becoming a potential diagnostic and therapeutic biomarker. However, the complex synthesis routes of HNO in biosystem always hinder the exact determination of HNO in living cells. Here, a rhodamine-based fluorescent probe used to determine nitroxyl (HNO) in lysosomes was constructed and synthesized. 2-(Diphenylphosphino)benzoate was utilized as the sensing unit for HNO and morpholine was chose as the targeting group for lysosome. Before the addition of HNO, the probe displayed a spirolactone structure and almost no fluorescence was found. After the addition of HNO, the probe existed as a conjugated xanthene form and an intense green fluorescence was observed. The fluorescent probe possessed fast response (3 min) and high selectivity for HNO. Furthermore, fluorescence intensity of the probe linearly related with the HNO concentration in the range of 6.0 × 10-8 to 6.0 × 10-5 mol L-1. The detection limit was found to be 1.87 × 10-8 mol L-1 for HNO. Moreover, the probe could selectively targeted lysosome with excellent biocompatibility and had been effectually utilized to recognize exogenous HNO in A549 cells.
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Affiliation(s)
- Shuangyu Liu
- School of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, 450046, PR China
| | - Junhong Xu
- Department of Dynamical Engineering, North China University of Water Resources and Electric Power, Zhengzhou, 450011, PR China.
| | - Qiujuan Ma
- School of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, 450046, PR China; Henan Engineering Research Center of Modern Chinese Medicine Research, Development and Application, Zhengzhou, 450046, PR China.
| | - Linke Li
- School of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, 450046, PR China
| | - Guojiang Mao
- School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, 453007, PR China
| | - Gege Wang
- School of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, 450046, PR China
| | - Xiaowei Wu
- School of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, 450046, PR China
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Michalski R, Smulik-Izydorczyk R, Pięta J, Rola M, Artelska A, Pierzchała K, Zielonka J, Kalyanaraman B, Sikora AB. The Chemistry of HNO: Mechanisms and Reaction Kinetics. Front Chem 2022; 10:930657. [PMID: 35864868 PMCID: PMC9294461 DOI: 10.3389/fchem.2022.930657] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Accepted: 06/06/2022] [Indexed: 11/23/2022] Open
Abstract
Azanone (HNO, also known as nitroxyl) is the protonated form of the product of one-electron reduction of nitric oxide (•NO), and an elusive electrophilic reactive nitrogen species of increasing pharmacological significance. Over the past 20 years, the interest in the biological chemistry of HNO has increased significantly due to the numerous beneficial pharmacological effects of its donors. Increased availability of various HNO donors was accompanied by great progress in the understanding of HNO chemistry and chemical biology. This review is focused on the chemistry of HNO, with emphasis on reaction kinetics and mechanisms in aqueous solutions.
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Affiliation(s)
- Radosław Michalski
- Institute of Applied Radiation Chemistry, Lodz University of Technology, Lodz, Poland
| | | | - Jakub Pięta
- Institute of Applied Radiation Chemistry, Lodz University of Technology, Lodz, Poland
| | - Monika Rola
- Institute of Applied Radiation Chemistry, Lodz University of Technology, Lodz, Poland
| | - Angelika Artelska
- Institute of Applied Radiation Chemistry, Lodz University of Technology, Lodz, Poland
| | - Karolina Pierzchała
- Institute of Applied Radiation Chemistry, Lodz University of Technology, Lodz, Poland
| | - Jacek Zielonka
- Department of Biophysics, Medical College of Wisconsin, Milwaukee, WI, United States
| | | | - Adam Bartłomiej Sikora
- Institute of Applied Radiation Chemistry, Lodz University of Technology, Lodz, Poland
- *Correspondence: Adam Bartłomiej Sikora,
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Rocca C, Pasqua T, Boukhzar L, Anouar Y, Angelone T. Progress in the emerging role of selenoproteins in cardiovascular disease: focus on endoplasmic reticulum-resident selenoproteins. Cell Mol Life Sci 2019; 76:3969-3985. [PMID: 31218451 PMCID: PMC11105271 DOI: 10.1007/s00018-019-03195-1] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2019] [Revised: 05/29/2019] [Accepted: 06/14/2019] [Indexed: 12/30/2022]
Abstract
Cardiovascular diseases represent one of the most important health problems of developed countries. One of the main actors involved in the onset and development of cardiovascular diseases is the increased production of reactive oxygen species that, through lipid peroxidation, protein oxidation and DNA damage, induce oxidative stress and cell death. Basic and clinical research are ongoing to better understand the endogenous antioxidant mechanisms that counteract oxidative stress, which may allow to identify a possible therapeutic targeting/application in the field of stress-dependent cardiovascular pathologies. In this context, increasing attention is paid to the glutathione/glutathione-peroxidase and to the thioredoxin/thioredoxin-reductase systems, among the most potent endogenous antioxidative systems. These key enzymes, belonging to the selenoprotein family, have a well-established function in the regulation of the oxidative cell balance. The aim of the present review was to highlight the role of selenoproteins in cardiovascular diseases, introducing the emerging cardioprotective role of endoplasmic reticulum-resident members and in particular one of them, namely selenoprotein T or SELENOT. Accumulating evidence indicates that the dysfunction of different selenoproteins is involved in the susceptibility to oxidative stress and its associated cardiovascular alterations, such as congestive heart failure, coronary diseases, impaired cardiac structure and function. Some of them are under investigation as useful pathological biomarkers. In addition, SELENOT exhibited intriguing cardioprotective effects by reducing the cardiac ischemic damage, in terms of infarct size and performance. In conclusion, selenoproteins could represent valuable targets to treat and diagnose cardiovascular diseases secondary to oxidative stress, opening a new avenue in the field of related therapeutic strategies.
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Affiliation(s)
- Carmine Rocca
- Laboratory of Cellular and Molecular Cardiovascular Patho-physiology, Department of Biology, E. and E.S., University of Calabria, Rende, Italy.
- UNIROUEN, Inserm U1239, Neuronal and Neuroendocrine Differentiation and Communication Laboratory, Rouen-Normandie University, 76821, Mont-Saint-Aignan, France.
- Institute for Research and Innovation in Biomedicine, 76000, Rouen, France.
| | - Teresa Pasqua
- Laboratory of Cellular and Molecular Cardiovascular Patho-physiology, Department of Biology, E. and E.S., University of Calabria, Rende, Italy
- "Fondazione Umberto Veronesi", Milan, Italy
| | - Loubna Boukhzar
- UNIROUEN, Inserm U1239, Neuronal and Neuroendocrine Differentiation and Communication Laboratory, Rouen-Normandie University, 76821, Mont-Saint-Aignan, France
- Institute for Research and Innovation in Biomedicine, 76000, Rouen, France
| | - Youssef Anouar
- UNIROUEN, Inserm U1239, Neuronal and Neuroendocrine Differentiation and Communication Laboratory, Rouen-Normandie University, 76821, Mont-Saint-Aignan, France
- Institute for Research and Innovation in Biomedicine, 76000, Rouen, France
| | - Tommaso Angelone
- Laboratory of Cellular and Molecular Cardiovascular Patho-physiology, Department of Biology, E. and E.S., University of Calabria, Rende, Italy.
- National Institute of Cardiovascular Research (INRC), Bologna, Italy.
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Speciation of Selenium in Brown Rice Fertilized with Selenite and Effects of Selenium Fertilization on Rice Proteins. Int J Mol Sci 2018; 19:ijms19113494. [PMID: 30404212 PMCID: PMC6274819 DOI: 10.3390/ijms19113494] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2018] [Revised: 10/26/2018] [Accepted: 10/29/2018] [Indexed: 11/25/2022] Open
Abstract
Foliar Selenium (Se) fertilizer has been widely used to accumulate Se in rice to a level that meets the adequate intake level. The Se content in brown rice (Oryza sativa L.) was increased in a dose-dependent manner by the foliar application of sodium selenite as a fertilizer at concentrations of 25, 50, 75, and 100 g Se/ha. Selenite was mainly transformed to organic Se, that is, selenomethionine in rice. Beyond the metabolic capacity of Se in rice, inorganic Se also appeared. In addition, four extractable protein fractions in brown rice were analyzed for Se concentration. The Se concentrations in the glutelin and albumin fractions saturated with increasing Se concentration in the fertilizer compared with those in the globulin and prolamin fractions. The structural analyses by fluorescence spectroscopy, Fourier transform infrared spectrometry, and differential scanning calorimetry suggest that the secondary structure and thermostability of glutelin were altered by the Se treatments. These alterations could be due to the replacements of cysteine and methionine to selenocysteine and selenomethionine, respectively. These findings indicate that foliar fertilization of Se was effective in not only transforming inorganic Se to low-molecular-weight selenometabolites such as selenoamino acids, but also incorporating Se into general rice proteins, such as albumin, globulin glutelin, and prolamin, as selenocysteine and selenomethionine in place of cysteine and methionine, respectively.
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Payne NC, Geissler A, Button A, Sasuclark AR, Schroll AL, Ruggles EL, Gladyshev VN, Hondal RJ. Comparison of the redox chemistry of sulfur- and selenium-containing analogs of uracil. Free Radic Biol Med 2017; 104:249-261. [PMID: 28108278 PMCID: PMC5328918 DOI: 10.1016/j.freeradbiomed.2017.01.028] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/10/2016] [Revised: 01/13/2017] [Accepted: 01/16/2017] [Indexed: 11/16/2022]
Abstract
Selenium is present in proteins in the form of selenocysteine, where this amino acid serves catalytic oxidoreductase functions. The use of selenocysteine in nature is strongly associated with redox catalysis. However, selenium is also found in a 2-selenouridine moiety at the wobble position of tRNAGlu, tRNAGln and tRNALys. It is thought that the modifications of the wobble position of the tRNA improves the selectivity of the codon-anticodon pair as a result of the physico-chemical changes that result from substitution of sulfur and selenium for oxygen. Both selenocysteine and 2-selenouridine have widespread analogs, cysteine and thiouridine, where sulfur is used instead. To examine the role of selenium in 2-selenouridine, we comparatively analyzed the oxidation reactions of sulfur-containing 2-thiouracil-5-carboxylic acid (s2c5Ura) and its selenium analog 2-selenouracil-5-carboxylic acid (se2c5Ura) using 1H-NMR spectroscopy, 77Se-NMR spectroscopy, and liquid chromatography-mass spectrometry. Treatment of s2c5Ura with hydrogen peroxide led to oxidized intermediates, followed by irreversible desulfurization to form uracil-5-carboxylic acid (c5Ura). In contrast, se2c5Ura oxidation resulted in a diselenide intermediate, followed by conversion to the seleninic acid, both of which could be readily reduced by ascorbate and glutathione. Glutathione and ascorbate only minimally prevented desulfurization of s2c5Ura, whereas very little deselenization of se2c5Ura occurred in the presence of the same antioxidants. In addition, se2c5Ura but not s2c5Ura showed glutathione peroxidase activity, further suggesting that oxidation of se2c5Ura is readily reversible, while oxidation of s2c5Ura is not. The results of the study of these model nucleobases suggest that the use of 2-selenouridine is related to resistance to oxidative inactivation that otherwise characterizes 2-thiouridine. As the use of selenocysteine in proteins also confers resistance to oxidation, our findings suggest a common mechanism for the use of selenium in biology.
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Affiliation(s)
- N Connor Payne
- Department of Biochemistry, 89 Beaumont Ave, Given Building Room B413, Burlington, VT 05405, United States
| | - Andrew Geissler
- Department of Biochemistry, 89 Beaumont Ave, Given Building Room B413, Burlington, VT 05405, United States
| | - Aileen Button
- Department of Biochemistry, 89 Beaumont Ave, Given Building Room B413, Burlington, VT 05405, United States
| | - Alexandru R Sasuclark
- Department of Chemistry, St. Michael's College, 1 Winooski Park, Colchester, VT 05439, United States
| | - Alayne L Schroll
- Department of Chemistry, St. Michael's College, 1 Winooski Park, Colchester, VT 05439, United States
| | - Erik L Ruggles
- Department of Biochemistry, 89 Beaumont Ave, Given Building Room B413, Burlington, VT 05405, United States
| | - Vadim N Gladyshev
- Division of Genetics, Department of Medicine, Brigham & Women's Hospital, Harvard Medical School, Boston, MA 02115, United States
| | - Robert J Hondal
- Department of Biochemistry, 89 Beaumont Ave, Given Building Room B413, Burlington, VT 05405, United States.
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Bianco CL, Toscano JP, Bartberger MD, Fukuto JM. The chemical biology of HNO signaling. Arch Biochem Biophys 2016; 617:129-136. [PMID: 27555493 DOI: 10.1016/j.abb.2016.08.014] [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: 07/07/2016] [Revised: 08/15/2016] [Accepted: 08/18/2016] [Indexed: 12/15/2022]
Abstract
Nitroxyl (HNO) is a simple molecule with significant potential as a pharmacological agent. For example, its use in the possible treatment of heart failure has received recent attention due to its unique therapeutic properties. Recent progress has been made on the elucidation of the mechanisms associated with its biological signaling. Importantly, the biochemical mechanisms described for HNO bioactivity are consistent with its unique and novel chemical properties/reactivity. To date, much of the biology of HNO can be associated with interactions and modification of important regulatory thiol proteins. Herein will be provided a description of HNO chemistry and how this chemistry translates to some of its reported biological effects.
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Affiliation(s)
| | - John P Toscano
- Department of Chemistry, Johns Hopkins University, Baltimore, MD 21218, USA
| | - Michael D Bartberger
- Department of Therapeutic Discovery, Amgen Inc., One Amgen Center Drive, Thousand Oaks, CA 91320, USA
| | - Jon M Fukuto
- Department of Chemistry, Sonoma State University, Rohnert Park, CA 94928, USA.
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