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Condeles AL, da Silva GS, Hernandes MBB, Toledo Junior JC. Insights on the endogenous labile iron pool binding properties. Biometals 2024:10.1007/s10534-024-00591-4. [PMID: 38691278 DOI: 10.1007/s10534-024-00591-4] [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: 11/08/2023] [Accepted: 02/18/2024] [Indexed: 05/03/2024]
Abstract
Under normal physiological conditions, the endogenous Labile Iron Pool (LIP) constitutes a ubiquitous, dynamic, tightly regulated reservoir of cellular ferrous iron. Furthermore, LIP is loaded into new apo-iron proteins, a process akin to the activity of metallochaperones. Despite such importance on iron metabolism, the LIP identity and binding properties have remained elusive. We hypothesized that LIP binds to cell constituents (generically denoted C) and forms an iron complex termed CLIP. Combining this binding model with the established Calcein (CA) methodology for assessing cytosolic LIP, we have formulated an equation featuring two experimentally quantifiable parameters (the concentrations of the cytosolic free CA and CA and LIP complex termed CALIP) and three unknown parameters (the total concentrations of LIP and C and their thermodynamic affinity constant Kd). The fittings of cytosolic CALIP × CA concentrations data encompassing a few cellular models to this equation with floating unknown parameters were successful. The computed adjusted total LIP (LIPT) and C (CT) concentrations fall within the sub-to-low micromolar range while the computed Kd was in the 10-2 µM range for all cell types. Thus, LIP binds and has high affinity to cellular constituents found in low concentrations and has remarkably similar properties across different cell types, shedding fresh light on the properties of endogenous LIP within cells.
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Affiliation(s)
- André Luís Condeles
- Departamento de Química, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, 14040-901, Brazil
| | - Gabriel Simonetti da Silva
- Departamento de Química, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, 14040-901, Brazil
| | - Maria Beatriz Braghetto Hernandes
- Departamento de Química, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, 14040-901, Brazil
| | - José Carlos Toledo Junior
- Departamento de Química, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, 14040-901, Brazil.
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2
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Medeiros NM, Garcia FA, Truzzi DR. Insight into the relevance of dinitrosyl iron complex (DNIC) formation in the absence of thiols in aqueous media. Dalton Trans 2024; 53:1951-1955. [PMID: 38226550 DOI: 10.1039/d3dt04356h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2024]
Abstract
DNIC can be formed in aqueous media in the absence of thiols via mechanisms that depend exclusively on Fe(II) and NO. However, these reactions do not take place at intracellular concentrations of Fe(II) and NO, reinforcing the relevance of thiols to assist Fe(II) to Fe(I) reduction during DNIC formation in biological media.
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Affiliation(s)
- Nathália Miranda Medeiros
- Departamento de Bioquímica, Instituto de Química, Universidade de São Paulo, São Paulo, 05508-000, Brazil.
| | - Felipe Alves Garcia
- Departamento de Bioquímica, Instituto de Química, Universidade de São Paulo, São Paulo, 05508-000, Brazil.
| | - Daniela Ramos Truzzi
- Departamento de Bioquímica, Instituto de Química, Universidade de São Paulo, São Paulo, 05508-000, Brazil.
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3
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Shumaev KB, Kosmachevskaya OV, Nasybullina EI, Ruuge EK, Kalenikova EI, Topunov AF. Histidine-Bound Dinitrosyl Iron Complexes: Antioxidant and Antiradical Properties. Int J Mol Sci 2023; 24:17236. [PMID: 38139065 PMCID: PMC10744092 DOI: 10.3390/ijms242417236] [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: 10/29/2023] [Revised: 11/30/2023] [Accepted: 12/04/2023] [Indexed: 12/24/2023] Open
Abstract
Dinitrosyl iron complexes (DNICs) are important physiological derivatives of nitric oxide. These complexes have a wide range of biological activities, with antioxidant and antiradical ones being of particular interest and importance. We studied the interaction between DNICs associated with the dipeptide L-carnosine or serum albumin and prooxidants under conditions mimicking oxidative stress. The ligands of these DNICs were histidine residues of carnosine or His39 and Cys34 in bovine serum albumin. Carnosine-bound DNICs reduced the level of piperazine free radicals in the reaction system containing tert-butyl hydroperoxide (t-BOOH), bivalent iron ions, a nitroxyl anion donor (Angeli's salt), and HEPES buffer. The ability of carnosine DNICs to intercept organic free radicals produced from t-BOOH decay could lead to this effect. In addition, carnosine DNICs reacted with the superoxide anion radical (O2•-) formed in the xanthine/xanthine oxidase enzymatic system. They also reduced the oxoferryl form of the heme group formed in the reaction of myoglobin with t-BOOH. DNICs associated with serum albumin were found to be rapidly destroyed in a model system containing metmyoglobin and t-BOOH. At the same time, these protein DNICs inhibited the t-BOOH-induced oxidative degradation of coenzymes Q9 and Q10 in rat myocardial homogenate. The possible mechanisms of the antioxidant and antiradical action of the DNICs studied and their role in the metabolism of reactive oxygen and nitrogen species are discussed.
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Affiliation(s)
- Konstantin B. Shumaev
- Bach Institute of Biochemistry, Research Center of Biotechnology, Russian Academy of Sciences, 119071 Moscow, Russia; (K.B.S.); (O.V.K.); (E.I.N.)
| | - Olga V. Kosmachevskaya
- Bach Institute of Biochemistry, Research Center of Biotechnology, Russian Academy of Sciences, 119071 Moscow, Russia; (K.B.S.); (O.V.K.); (E.I.N.)
| | - Elvira I. Nasybullina
- Bach Institute of Biochemistry, Research Center of Biotechnology, Russian Academy of Sciences, 119071 Moscow, Russia; (K.B.S.); (O.V.K.); (E.I.N.)
| | - Enno K. Ruuge
- E.I. Chazov National Medical Research Center of Cardiology, 121552 Moscow, Russia;
- Faculty of Fundamental Medicine, Lomonosov Moscow State University, 119991 Moscow, Russia;
| | - Elena I. Kalenikova
- Faculty of Fundamental Medicine, Lomonosov Moscow State University, 119991 Moscow, Russia;
| | - Alexey F. Topunov
- Bach Institute of Biochemistry, Research Center of Biotechnology, Russian Academy of Sciences, 119071 Moscow, Russia; (K.B.S.); (O.V.K.); (E.I.N.)
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4
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Dent MR, DeMartino AW. Nitric oxide and thiols: Chemical biology, signalling paradigms and vascular therapeutic potential. Br J Pharmacol 2023:10.1111/bph.16274. [PMID: 37908126 PMCID: PMC11058123 DOI: 10.1111/bph.16274] [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: 06/13/2023] [Revised: 09/18/2023] [Accepted: 10/09/2023] [Indexed: 11/02/2023] Open
Abstract
Nitric oxide (• NO) interactions with biological thiols play crucial, but incompletely determined, roles in vascular signalling and other biological processes. Here, we highlight two recently proposed signalling paradigms: (1) the formation of a vasodilating labile nitrosyl ferrous haem (NO-ferrohaem) facilitated by thiols via thiyl radical generation and (2) polysulfides/persulfides and their interaction with • NO. We also describe the specific (bio)chemical routes in which • NO and thiols react to form S-nitrosothiols, a broad class of small molecules, and protein post-translational modifications that can influence protein function through catalytic site or allosteric structural changes. S-Nitrosothiol formation depends upon cellular conditions, but critically, an appropriate oxidant for either the thiol (yielding a thiyl radical) or • NO (yielding a nitrosonium [NO+ ]-donating species) is required. We examine the roles of these collective • NO/thiol species in vascular signalling and their cardiovascular therapeutic potential.
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Affiliation(s)
- Matthew R. Dent
- Heart, Lung, Blood, and Vascular Medicine Institute, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Anthony W. DeMartino
- Department of Medicine, University of Maryland School of Medicine, Baltimore, Maryland, USA
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5
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Liao CJ, Tseng YT, Cheng YA, Dayao LA, Iffland-Mühlhaus L, Gee LB, Ribson RD, Chan TS, Apfel UP, Lu TT. Ligand Control of Dinitrosyl Iron Complexes for Selective Superoxide-Mediated Nitric Oxide Monooxygenation and Superoxide-Dioxygen Interconversion. J Am Chem Soc 2023; 145:20389-20402. [PMID: 37683125 DOI: 10.1021/jacs.3c05577] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/10/2023]
Abstract
Through nitrosylation of [Fe-S] proteins, or the chelatable iron pool, a dinitrosyl iron unit (DNIU) [Fe(NO)2] embedded in the form of low-molecular-weight/protein-bound dinitrosyl iron complexes (DNICs) was discovered as a metallocofactor assembled under inflammatory conditions with elevated levels of nitric oxide (NO) and superoxide (O2-). In an attempt to gain biomimetic insights into the unexplored transformations of the DNIU under inflammation, we investigated the reactivity toward O2- by a series of DNICs [(NO)2Fe(μ-MePyr)2Fe(NO)2] (1) and [(NO)2Fe(μ-SEt)2Fe(NO)2] (3). During the superoxide-induced conversion of DNIC 1 into DNIC [(K-18-crown-6-ether)2(NO2)][Fe(μ-MePyr)4(μ-O)2(Fe(NO)2)4] (2-K-crown) and a [Fe3+(MePyr)x(NO2)y(O)z]n adduct, stoichiometric NO monooxygenation yielding NO2- occurs without the transient formation of peroxynitrite-derived •OH/•NO2 species. To study the isoelectronic reaction of O2(g) and one-electron-reduced DNIC 1, a DNIC featuring an electronically localized {Fe(NO)2}9-{Fe(NO)2}10 electronic structure, [K-18-crown-6-ether][(NO)2Fe(μ-MePyr)2Fe(NO)2] (1-red), was successfully synthesized and characterized. Oxygenation of DNIC 1-red leads to the similar assembly of DNIC 2-K-crown, of which the electronic structure is best described as paramagnetic with weak antiferromagnetic coupling among the four S = 1/2 {FeIII(NO-)2}9 units and S = 5/2 Fe3+ center. In contrast to DNICs 1 and 1-red, DNICs 3 and [K-18-crown-6-ether][(NO)2Fe(μ-SEt)2Fe(NO)2] (3-red) display a reversible equilibrium of "3 + O2- ⇋ 3-red + O2(g)", which is ascribed to the covalent [Fe(μ-SEt)2Fe] core and redox-active [Fe(NO)2] unit. Based on this study, the supporting/bridging ligands in dinuclear DNIC 1/3 (or 1-red/3-red) control the selective monooxygenation of NO and redox interconversion between O2- and O2 during reaction with O2- (or O2).
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Affiliation(s)
- Cheng-Jhe Liao
- Institute of Biomedical Engineering, National Tsing Hua University, Hsinchu 30013, Taiwan
| | - Yu-Ting Tseng
- Institute of Biomedical Engineering, National Tsing Hua University, Hsinchu 30013, Taiwan
| | - Yu-An Cheng
- Institute of Biomedical Engineering, National Tsing Hua University, Hsinchu 30013, Taiwan
| | - Loise Ann Dayao
- Institute of Biomedical Engineering, National Tsing Hua University, Hsinchu 30013, Taiwan
| | - Linda Iffland-Mühlhaus
- Department of Chemistry and Biochemistry, Inorganic Chemistry I, Ruhr-Universität Bochum, 44801 Bochum, Germany
| | - Leland B Gee
- LCLS, SLAC National Accelerator Laboratory, Menlo Park, California 94025, United States
| | - Ryan D Ribson
- LCLS, SLAC National Accelerator Laboratory, Menlo Park, California 94025, United States
| | - Ting-Shan Chan
- National Synchrotron Radiation Research Center, Hsinchu 30076, Taiwan
| | - Ulf-Peter Apfel
- Department of Chemistry and Biochemistry, Inorganic Chemistry I, Ruhr-Universität Bochum, 44801 Bochum, Germany
- Department of Electrosynthesis, Fraunhofer UMSICHT, 46047 Oberhausen, Germany
| | - Tsai-Te Lu
- Institute of Biomedical Engineering, National Tsing Hua University, Hsinchu 30013, Taiwan
- Department of Chemistry, National Tsing Hua University, Hsinchu 30013, Taiwan
- Department of Chemistry, Chung Yuan Christian University, Taoyuan 32023, Taiwan
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Role of Nitric Oxide-Derived Metabolites in Reactions of Methylglyoxal with Lysine and Lysine-Rich Protein Leghemoglobin. Int J Mol Sci 2022; 24:ijms24010168. [PMID: 36613614 PMCID: PMC9820652 DOI: 10.3390/ijms24010168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Revised: 12/14/2022] [Accepted: 12/17/2022] [Indexed: 12/24/2022] Open
Abstract
Carbonyl stress occurs when reactive carbonyl compounds (RCC), such as reducing sugars, dicarbonyls etc., accumulate in the organism. The interaction of RCC carbonyl groups with amino groups of molecules is called the Maillard reaction. One of the most active RCCs is α-dicarbonyl methylglyoxal (MG) that modifies biomolecules forming non-enzymatic glycation products. Organic free radicals are formed in the reaction between MG and lysine or Nα-acetyllysine. S-nitrosothiols and nitric oxide (•NO) donor PAPA NONOate increased the yield of organic free radical intermediates, while other •NO-derived metabolites, namely, nitroxyl anion and dinitrosyl iron complexes (DNICs) decreased it. At the late stages of the Maillard reaction, S-nitrosoglutathione (GSNO) also inhibited the formation of glycation end products (AGEs). The formation of a new type of DNICs, bound with Maillard reaction products, was found. The results obtained were used to explain the glycation features of legume hemoglobin-leghemoglobin (Lb), which is a lysine-rich protein. In Lb, lysine residues can form fluorescent cross-linked AGEs, and •NO-derived metabolites slow down their formation. The knowledge of these processes can be used to increase the stability of Lb. It can help in better understanding the impact of stress factors on legume plants and contribute to the production of recombinant Lb for biotechnology.
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Chronic High-Altitude Hypoxia Alters Iron and Nitric Oxide Homeostasis in Fetal and Maternal Sheep Blood and Aorta. Antioxidants (Basel) 2022; 11:antiox11091821. [PMID: 36139895 PMCID: PMC9495375 DOI: 10.3390/antiox11091821] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2022] [Revised: 09/09/2022] [Accepted: 09/12/2022] [Indexed: 11/16/2022] Open
Abstract
The mammalian fetus thrives at oxygen tensions much lower than those of adults. Gestation at high altitude superimposes hypoxic stresses on the fetus resulting in increased erythropoiesis. We hypothesized that chronic hypoxia at high altitude alters the homeostasis of iron and bioactive nitric oxide metabolites (NOx) in gestation. To test for this, electron paramagnetic resonance was used to provide unique measurements of iron, metalloproteins, and free radicals in the blood and aorta of fetal and maternal sheep from either high or low altitudes (3801 or 300 m). Using ozone-based chemiluminescence with selectivity for various NOx species, we determined the NOx levels in these samples immediately after collection. These experiments demonstrated a systemic redistribution of iron in high altitude fetuses as manifested by a decrease in both chelatable and total iron in the aorta and an increase in non-transferrin bound iron and total iron in plasma. Likewise, high altitude altered the redox status diversely in fetal blood and aorta. This study also found significant increases in blood and aortic tissue NOx in fetuses and mothers at high altitude. In addition, gradients in NOx concentrations observed between fetus and mother, umbilical artery and vein, and plasma and RBCs demonstrated complex dynamic homeostasis of NOx among these circulatory compartments, such as placental generation and efflux as well as fetal consumption of iron-nitrosyls in RBCs, probably HbNO. In conclusion, these results may suggest the utilization of iron from non-hematopoietic tissues iron for erythropoiesis in the fetus and increased NO bioavailability in response to chronic hypoxic stress at high altitude during gestation.
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8
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Jung P, Ha E, Zhang M, Fall C, Hwang M, Taylor E, Stetkevich S, Bhanot A, Wilson CG, Figueroa JD, Obenaus A, Bragg S, Tone B, Eliamani S, Holshouser B, Blood AB, Liu T. Neuroprotective role of nitric oxide inhalation and nitrite in a Neonatal Rat Model of Hypoxic-Ischemic Injury. PLoS One 2022; 17:e0268282. [PMID: 35544542 PMCID: PMC9094545 DOI: 10.1371/journal.pone.0268282] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2021] [Accepted: 04/26/2022] [Indexed: 12/01/2022] Open
Abstract
Background There is evidence from various models of hypoxic-ischemic injury (HII) that nitric oxide (NO) is protective. We hypothesized that either inhaled NO (iNO) or nitrite would alleviate brain injury in neonatal HII via modulation of mitochondrial function. Methods We tested the effects of iNO and nitrite on the Rice-Vannucci model of HII in 7-day-old rats. Brain mitochondria were isolated for flow cytometry, aconitase activity, electron paramagnetic resonance, and Seahorse assays. Results Pretreatment of pups with iNO decreased survival in the Rice-Vannucci model of HII, while iNO administered post-insult did not. MRI analysis demonstrated that pre-HII iNO at 40 ppm and post-HII iNO at 20 ppm decreased the brain lesion sizes from 6.3±1.3% to 1.0±0.4% and 1.8±0.8%, respectively. Intraperitoneal nitrite at 0.165 μg/g improved neurobehavioral performance but was harmful at higher doses and had no effect on brain infarct size. NO reacted with complex IV at the heme a3 site, decreased the oxidative stress of mitochondria challenged with anoxia and reoxygenation, and suppressed mitochondrial oxygen respiration. Conclusions This study suggests that iNO administered following neonatal HII may be neuroprotective, possibly via its modulation of mitochondrial function.
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Affiliation(s)
- Peter Jung
- Division of Neonatology, Department of Pediatrics, Loma Linda University School of Medicine, Loma Linda, CA, United States of America
| | - Euntaik Ha
- Division of Neonatology, Department of Pediatrics, Loma Linda University School of Medicine, Loma Linda, CA, United States of America
| | - Meijuan Zhang
- Division of Neonatology, Department of Pediatrics, Loma Linda University School of Medicine, Loma Linda, CA, United States of America
| | - Carolyn Fall
- Division of Neonatology, Department of Pediatrics, Loma Linda University School of Medicine, Loma Linda, CA, United States of America
| | - Mindy Hwang
- Division of Neonatology, Department of Pediatrics, Loma Linda University School of Medicine, Loma Linda, CA, United States of America
| | - Emily Taylor
- Division of Neonatology, Department of Pediatrics, Loma Linda University School of Medicine, Loma Linda, CA, United States of America
| | - Samuel Stetkevich
- Division of Neonatology, Department of Pediatrics, Loma Linda University School of Medicine, Loma Linda, CA, United States of America
| | - Aditi Bhanot
- Division of Neonatology, Department of Pediatrics, Loma Linda University School of Medicine, Loma Linda, CA, United States of America
| | - Christopher G. Wilson
- Division of Neonatology, Department of Pediatrics, Loma Linda University School of Medicine, Loma Linda, CA, United States of America
- Center for Perinatal Biology, Loma Linda University School of Medicine, Loma Linda, CA, United States of America
| | - Johnny D. Figueroa
- Center for Health Disparities and Molecular Medicine, Loma Linda University School of Medicine, Loma Linda, CA, United States of America
| | - Andre Obenaus
- Department of Pediatrics, School of Medicine, University of California, Irvine, CA, United States of America
| | - Shannon Bragg
- Division of Neonatology, Department of Pediatrics, Loma Linda University School of Medicine, Loma Linda, CA, United States of America
| | - Beatriz Tone
- Division of Neonatology, Department of Pediatrics, Loma Linda University School of Medicine, Loma Linda, CA, United States of America
| | - Saburi Eliamani
- Center for Imaging Research, Department of Radiology, Loma Linda University School of Medicine, Loma Linda, CA, United States of America
| | - Barbara Holshouser
- Center for Imaging Research, Department of Radiology, Loma Linda University School of Medicine, Loma Linda, CA, United States of America
| | - Arlin B. Blood
- Division of Neonatology, Department of Pediatrics, Loma Linda University School of Medicine, Loma Linda, CA, United States of America
- Center for Perinatal Biology, Loma Linda University School of Medicine, Loma Linda, CA, United States of America
| | - Taiming Liu
- Division of Neonatology, Department of Pediatrics, Loma Linda University School of Medicine, Loma Linda, CA, United States of America
- * E-mail:
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9
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Condeles AL, Toledo Junior JC. The Labile Iron Pool Reacts Rapidly and Catalytically with Peroxynitrite. Biomolecules 2021; 11:1331. [PMID: 34572543 PMCID: PMC8466499 DOI: 10.3390/biom11091331] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Revised: 07/27/2021] [Accepted: 07/28/2021] [Indexed: 12/23/2022] Open
Abstract
While investigating peroxynitrite-dependent oxidation in murine RAW 264.7 macrophage cells, we observed that removal of the Labile Iron Pool (LIP) by chelation increases the intracellular oxidation of the fluorescent indicator H2DCF, so we concluded that the LIP reacts with peroxynitrite and decreases the yield of peroxynitrite-derived oxidants. This was a paradigm-shifting finding in LIP biochemistry and raised many questions. In this follow-up study, we address fundamental properties of the interaction between the LIP and peroxynitrite by using the same cellular model and fluorescence methodology. We have identified that the reaction between the LIP and peroxynitrite has catalytic characteristics, and we have estimated that the rate constant of the reaction is in the range of 106 to 107 M-1s-1. Together, these observations suggest that the LIP represents a constitutive peroxynitrite reductase system in RAW 264.7 cells.
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Affiliation(s)
| | - José Carlos Toledo Junior
- Departamento de Química, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto 14040-901, Brazil;
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10
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Dar HH, Anthonymuthu TS, Ponomareva LA, Souryavong AB, Shurin GV, Kapralov AO, Tyurin VA, Lee JS, Mallampalli RK, Wenzel SE, Bayir H, Kagan VE. A new thiol-independent mechanism of epithelial host defense against Pseudomonas aeruginosa: iNOS/NO • sabotage of theft-ferroptosis. Redox Biol 2021; 45:102045. [PMID: 34167028 PMCID: PMC8227829 DOI: 10.1016/j.redox.2021.102045] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2021] [Revised: 05/04/2021] [Accepted: 06/11/2021] [Indexed: 01/16/2023] Open
Abstract
Ferroptosis is a redox-driven type of regulated cell death program arising from maladaptation of three metabolic pathways: glutathione homeostasis, iron handling and lipid peroxidation. Though GSH/Gpx4 is the predominant system detoxifying phospholipid hydroperoxides (PLOOH) in mammalian cells, recently Gpx4-independent regulators of ferroptosis like ferroptosis suppressor protein 1 (FSP1) in resistant cancer lines and iNOS/NO• in M1 macrophages have been discovered. We previously reported that Pseudomonas aeruginosa (PA) utilizes its 15- lipoxygenase (pLoxA) to trigger ferroptotic death in epithelial cells by oxidizing the host arachidonoyl-phosphatidylethanolamine (ETE-PE) into pro-ferroptotic 15-hydroperoxy- arachidonyl-PE (15-HpETE-PE). Here we demonstrate that PA degrades the host GPx4 defense by activating the lysosomal chaperone-mediated autophagy (CMA). In response, the host stimulates the iNOS/NO•-driven anti-ferroptotic mechanism to stymie lipid peroxidation and protect GPx4/GSH-deficient cells. By using a co-culture model system, we showed that macrophage-produced NO• can distantly prevent PA stimulated ferroptosis in epithelial cells as an inter-cellular mechanism. We further established that suppression of ferroptosis in epithelial cells by NO• is enabled through the suppression of phospholipid peroxidation, particularly the production of pro-ferroptotic 15-HpETE-PE signals. Pharmacological targeting of iNOS (NO• generation) attenuated its anti-ferroptotic function. In conclusion, our findings define a new inter-cellular ferroptosis suppression mechanism which may represent a new strategy of the host against P. aeruginosa induced theft-ferroptosis.
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Affiliation(s)
- Haider H Dar
- Department of Environmental and Occupational Health and Center for Free Radical and Antioxidant Health, University of Pittsburgh, Pittsburgh, PA, USA.
| | - Tamil S Anthonymuthu
- Department of Critical Care Medicine, Safar Center for Resuscitation Research, Children's Neuroscience Institute, Children's Hospital of Pittsburgh, University of Pittsburgh, Pittsburgh, PA, USA
| | - Liubov A Ponomareva
- Institute for Regenerative Medicine, IM Sechenov Moscow State Medical University, Moscow, Russia
| | - Austin B Souryavong
- Department of Environmental and Occupational Health and Center for Free Radical and Antioxidant Health, University of Pittsburgh, Pittsburgh, PA, USA
| | - Galina V Shurin
- Department of Environmental and Occupational Health and Center for Free Radical and Antioxidant Health, University of Pittsburgh, Pittsburgh, PA, USA
| | - Alexandr O Kapralov
- Department of Environmental and Occupational Health and Center for Free Radical and Antioxidant Health, University of Pittsburgh, Pittsburgh, PA, USA
| | - Vladimir A Tyurin
- Department of Environmental and Occupational Health and Center for Free Radical and Antioxidant Health, University of Pittsburgh, Pittsburgh, PA, USA
| | - Janet S Lee
- Department of Medicine, Division of Pulmonary, Allergy, Critical Care Medicine, Acute Lung Injury Center of Excellence, University of Pittsburgh, Pittsburgh, PA, USA
| | - Rama K Mallampalli
- Department of Internal Medicine, The Ohio State University, Columbus, OH, USA
| | - Sally E Wenzel
- Department of Environmental and Occupational Health and Center for Free Radical and Antioxidant Health, University of Pittsburgh, Pittsburgh, PA, USA; Asthma Institute, University of Pittsburgh, PA, USA
| | - Hülya Bayir
- Department of Environmental and Occupational Health and Center for Free Radical and Antioxidant Health, University of Pittsburgh, Pittsburgh, PA, USA; Department of Critical Care Medicine, Safar Center for Resuscitation Research, Children's Neuroscience Institute, Children's Hospital of Pittsburgh, University of Pittsburgh, Pittsburgh, PA, USA.
| | - Valerian E Kagan
- Department of Environmental and Occupational Health and Center for Free Radical and Antioxidant Health, University of Pittsburgh, Pittsburgh, PA, USA; Institute for Regenerative Medicine, IM Sechenov Moscow State Medical University, Moscow, Russia; Departments of Pharmacology and Chemical Biology, Chemistry, Radiation Oncology, University of Pittsburgh, PA, USA.
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11
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Truzzi DR, Medeiros NM, Augusto O, Ford PC. Dinitrosyl Iron Complexes (DNICs). From Spontaneous Assembly to Biological Roles. Inorg Chem 2021; 60:15835-15845. [PMID: 34014639 DOI: 10.1021/acs.inorgchem.1c00823] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Dinitrosyl iron complexes (DNICs) are spontaneously and rapidly generated in cells. Their assembly requires nitric oxide (NO), biothiols, and nonheme iron, either labile iron or iron-sulfur clusters. Despite ubiquitous detection by electron paramagnetic resonance in NO-producing cells, the DNIC's chemical biology remains only partially understood. In this Forum Article, we address the reaction mechanisms for endogenous DNIC formation, with a focus on a labile iron pool as the iron source. The capability of DNICs to promote S-nitrosation is discussed in terms of S-nitrosothiol generation associated with the formation and chemical reactivity of DNICs. We also highlight how elucidation of the chemical reactivity and the dynamics of DNICs combined with the development of detection/quantification methods can provide further information regarding their participation in physiological and pathological processes.
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Affiliation(s)
- Daniela R Truzzi
- Departamento de Bioquímica, Instituto de Química de São Paulo, Universidade de São Paulo, Caixa Postal 26077, CEP05513-970 São Paulo, São Paulo, Brazil
| | - Nathalia M Medeiros
- Departamento de Bioquímica, Instituto de Química de São Paulo, Universidade de São Paulo, Caixa Postal 26077, CEP05513-970 São Paulo, São Paulo, Brazil
| | - Ohara Augusto
- Departamento de Bioquímica, Instituto de Química de São Paulo, Universidade de São Paulo, Caixa Postal 26077, CEP05513-970 São Paulo, São Paulo, Brazil
| | - Peter C Ford
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, Santa Barbara, California 93106-9510, United States
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12
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Vanin AF, Pekshev AV, Vagapov AB, Sharapov NA, Lakomkin VL, Abramov AA, Timoshin AA, Kapelko VI. Gaseous Nitric Oxide and Dinitrosyl Iron Complexes with Thiol-Containing Ligands as Potential Medicines that Can Relieve COVID-19. Biophysics (Nagoya-shi) 2021; 66:155-163. [PMID: 33935291 PMCID: PMC8078388 DOI: 10.1134/s0006350921010218] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Revised: 12/02/2020] [Accepted: 12/03/2020] [Indexed: 11/27/2022] Open
Abstract
It is shown that the inhalation of gaseous nitric oxide (gNO) or sprayed aqueous solutions of binuclear dinitrosyl iron complexes with glutathione or N-acetyl-L-cysteine by animals or humans provokes no perceptible hypotensive effects. Potentially, these procedures may be useful in COVID-19 treatment. The NO level in complexes with hemoglobin in blood decreases as the gNO concentration in the gas flow produced by the Plazon system increases from 100 to 2100 ppm, so that at 2000 ppm more than one-half of the gas can be incorporated into dinitrosyl complexes formed in tissues of the lungs and respiratory tract. Thus, the effect of gNO inhalation may be similar to that observed after administration of solutions of dinitrosyl iron complexes, namely, to the presence of dinitrosyl iron complexes with thiol-containing ligands in lung and airway tissues. With regard to the hypothesis posited earlier that these complexes can suppress coronavirus replication as donors of nitrosonium cations (Biophysics 65, 818, 2020), it is not inconceivable that administration of gNO or chemically synthesized dinitrosyl iron complexes with thiol-containing ligands may help treat COVID-19. In tests on the authors of this paper as volunteers, the tolerance concentration of gNO inhaled within 15 min was approximately 2000 ppm. In tests on rats that inhaled sprayed aqueous solutions of dinitrosyl iron complexes, their tolerance dose was approximately 0.4 mmol/kg body weight.
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Affiliation(s)
- A. F. Vanin
- Semenov Federal Research Center of Chemical Physics, Russian Academy of Sciences, 119334 Moscow, Russia
- Institute of Regenerative Medicine, Sechenov First Moscow State Medical University, Ministry of Health of the Russian Federation, 119991 Moscow, Russia
| | - A. V. Pekshev
- Bauman Moscow State Technical University, 105005 Moscow, Russia
| | - A. B. Vagapov
- Bauman Moscow State Technical University, 105005 Moscow, Russia
| | - N. A. Sharapov
- Bauman Moscow State Technical University, 105005 Moscow, Russia
| | - V. L. Lakomkin
- National Medical Research Center of Cardiology, Ministry of Health of the Russian Federation, 121552 Moscow, Russia
| | - A. A. Abramov
- National Medical Research Center of Cardiology, Ministry of Health of the Russian Federation, 121552 Moscow, Russia
| | - A. A. Timoshin
- National Medical Research Center of Cardiology, Ministry of Health of the Russian Federation, 121552 Moscow, Russia
| | - V. I. Kapelko
- National Medical Research Center of Cardiology, Ministry of Health of the Russian Federation, 121552 Moscow, Russia
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13
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Shumaev KB, Kosmachevskaya OV, Grachev DI, Timoshin AA, Topunov AF, Lankin VZ, Ruuge EK. [Possible mechanism of antioxidant action of dinitrosyl iron complexes]. BIOMEDIT︠S︡INSKAI︠A︡ KHIMII︠A︡ 2021; 67:162-168. [PMID: 33860774 DOI: 10.18097/pbmc20216702162] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The antioxidant effect of dinitrosyl iron complexes (DNICs) was studied in various model systems. DNICs with glutathione ligands effectively inhibited Cu2+-induced peroxidation of low density lipoproteins (LDL). The antioxidant effect of DNICs with phosphate ligands and free reduced glutathione (GSH) was less pronounced. In addition, DNICs with glutathione suppressed the formation of reactive oxygen species during co-oxidation of lecithin liposomes and glucose. Free radical oxidation in this system was induced with a lipophilic azo initiator and evaluated by luminol-dependent chemiluminescence. NO sharply stimulated chemiluminescence during co-oxidation of glucose and liposomes, thus suggesting the formation of potent oxidants under these conditions. Glutathione DNICs scavenge the superoxide radical anion generated in the xanthine-xanthine oxidase system. Superoxide production was assessed by lucigenin-dependent chemiluminescence and electron paramagnetic resonance (EPR) spectroscopy. Chemiluminescence revealed the dose-dependent character of antiradical effect of glutathione DNICs; moreover, these complexes turned out to be more efficient than GSH. EPR spectra of the adducts of the DEPMPO spin trap with free radicals suggest that the interaction of glutathione DNICs and superoxide does not result in the formation of the thiyl radical of glutathione. Here we propose a mechanism of the antioxidant action of glutathione DNICs, suggesting that unstable intermediate complexes are formed upon their interaction with superoxide or lipid radicals. Further, as a result of intramolecular rearrangement, these intermediates decompose without the free radical as the by-products.
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Affiliation(s)
- K B Shumaev
- Research Center of Biotechnology of the Russian Academy of Sciences, Bach Institute of Biochemistry, Moscow, Russia; National Medical Research Centre for Cardiology, Moscow, Russia
| | - O V Kosmachevskaya
- Research Center of Biotechnology of the Russian Academy of Sciences, Bach Institute of Biochemistry, Moscow, Russia
| | - D I Grachev
- National Medical Research Centre for Cardiology, Moscow, Russia; Lomonosov Moscow State University, Faculty of Physics, Moscow, Russia
| | - A A Timoshin
- National Medical Research Centre for Cardiology, Moscow, Russia
| | - A F Topunov
- Research Center of Biotechnology of the Russian Academy of Sciences, Bach Institute of Biochemistry, Moscow, Russia
| | - V Z Lankin
- National Medical Research Centre for Cardiology, Moscow, Russia
| | - E K Ruuge
- National Medical Research Centre for Cardiology, Moscow, Russia; Lomonosov Moscow State University, Faculty of Physics, Moscow, Russia
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14
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Poptic AL, Zhang S. Iron(II/III) Halide Complexes Promote the Interconversion of Nitric Oxide and S-Nitrosothiols through Reversible Fe-S Interaction. Inorg Chem 2021; 60:5190-5197. [PMID: 33705121 DOI: 10.1021/acs.inorgchem.1c00203] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Heme and non-heme iron in biology mediate the storage/release of NO• from S-nitrosothiols as a means to control the biological concentration of NO•. Despite their importance in many physiological processes, the mechanisms of N-S bond formation/cleavage at Fe centers have been controversial. Herein, we report the interconversion of NO• and S-nitrosothiols mediated by FeII/FeIII chloride complexes. The reaction of 2 equiv of S-nitrosothiol (Ph3CSNO) with [Cl6FeII2]2- results in facile release of NO• and formation of iron(III) halothiolate. Detailed spectroscopic studies, including in situ UV-vis, IR, and Mössbauer spectroscopy, support the interaction of the S atom with the FeII center. This is in contrast to the proposed mechanism of NO• release from the well-studied "red product" κ1-N bound S-nitrosothiol FeII complex, [(CN)5Fe(κ1-N-RSNO)]3-. Additionally, FeIII chloride can mediate NO• storage through the formation of S-nitrosothiols. Treatment of iron(III) halothiolate with 2 equiv of NO• regenerates Ph3CSNO with the FeII source trapped as the S = 3/2 {FeNO}7 species [Cl3FeNO]-, which is inert toward further coordination and activation of S-nitrosothiols. Our work demonstrates how labile iron can mediate the interconversion of NO•/thiolate and S-nitrosothiol, which has important implications toward how Nature manages the biological concentration of free NO•.
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Affiliation(s)
- Anna L Poptic
- Department of Chemistry & Biochemistry, The Ohio State University, 100 West 18th Avenue, Columbus, Ohio 43210, United States
| | - Shiyu Zhang
- Department of Chemistry & Biochemistry, The Ohio State University, 100 West 18th Avenue, Columbus, Ohio 43210, United States
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15
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Role of nitric oxide in the response to photooxidative stress in prostate cancer cells. Biochem Pharmacol 2020; 182:114205. [PMID: 32828802 DOI: 10.1016/j.bcp.2020.114205] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2020] [Revised: 08/13/2020] [Accepted: 08/18/2020] [Indexed: 12/21/2022]
Abstract
A continuous state of oxidative stress during inflammation contributes to the development of 25% of human cancers. Epithelial and inflammatory cells release reactive oxygen species (ROS) and reactive nitrogen species (RNS) that can damage DNA. ROS/RNS have biological implications in both chemoresistance and tumor recurrence. As several clinically employed anticancer drugs can generate ROS/RNS, we have addressed herein how inducible nitric oxide synthase and nitric oxide (iNOS/•NO) affect the molecular pathways implicated in the tumor response to oxidative stress. To mimic the oxidative stress associated with chemotherapy, we used a photosensitizer (pheophorbide a) that can generate ROS/RNS in a controlled manner. We investigated how iNOS/•NO modulates the tumor response to oxidative stress by involving the NF-κB and Nrf2 molecular pathways. We found that low levels of iNOS induce the development of a more aggressive tumor population, leading to survival, recurrence and resistance. By contrast, high levels of iNOS/•NO sensitize tumor cells to oxidative treatment, causing cell growth arrest. Our analysis showed that NF-κB and Nrf2, which are activated in response to oxidative stress, communicate with each other through RKIP. For this critical role, RKIP could be an interesting target for anticancer drugs. Our study provides insight into the complex signaling response of cancer cells to oxidative treatments as well as new possibilities for the rational design of new therapeutic strategies.
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16
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Truzzi DR, Alves SV, Netto LES, Augusto O. The Peroxidatic Thiol of Peroxiredoxin 1 is Nitrosated by Nitrosoglutathione but Coordinates to the Dinitrosyl Iron Complex of Glutathione. Antioxidants (Basel) 2020; 9:antiox9040276. [PMID: 32218363 PMCID: PMC7222187 DOI: 10.3390/antiox9040276] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Revised: 03/20/2020] [Accepted: 03/23/2020] [Indexed: 12/20/2022] Open
Abstract
Protein S-nitrosation is an important consequence of NO●·metabolism with implications in physiology and pathology. The mechanisms responsible for S-nitrosation in vivo remain debatable and kinetic data on protein S-nitrosation by different agents are limited. 2-Cys peroxiredoxins, in particular Prx1 and Prx2, were detected as being S-nitrosated in multiple mammalian cells under a variety of conditions. Here, we investigated the kinetics of Prx1 S-nitrosation by nitrosoglutathione (GSNO), a recognized biological nitrosating agent, and by the dinitrosyl-iron complex of glutathione (DNIC-GS; [Fe(NO)2(GS)2]−), a hypothetical nitrosating agent. Kinetics studies following the intrinsic fluorescence of Prx1 and its mutants (C83SC173S and C52S) were complemented by product analysis; all experiments were performed at pH 7.4 and 25 ℃. The results show GSNO-mediated nitrosation of Prx1 peroxidatic residue (k+NOCys52 = 15.4 ± 0.4 M−1. s−1) and of Prx1 Cys83 residue (k+NOCys83 = 1.7 ± 0.4 M−1. s−1). The reaction of nitrosated Prx1 with GSH was also monitored and provided a second-order rate constant for Prx1Cys52NO denitrosation of k−NOCys52 = 14.4 ± 0.3 M−1. s−1. In contrast, the reaction of DNIC-GS with Prx1 did not nitrosate the enzyme but formed DNIC-Prx1 complexes. The peroxidatic Prx1 Cys was identified as the residue that more rapidly replaces the GS ligand from DNIC-GS (kDNICCys52 = 7.0 ± 0.4 M−1. s−1) to produce DNIC-Prx1 ([Fe(NO)2(GS)(Cys52-Prx1)]−). Altogether, the data showed that in addition to S-nitrosation, the Prx1 peroxidatic residue can replace the GS ligand from DNIC-GS, forming stable DNIC-Prx1, and both modifications disrupt important redox switches.
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Affiliation(s)
- Daniela R. Truzzi
- Departamento de Bioquímica, Instituto de Química, Universidade de São Paulo, São Paulo 05508-000, Brazil;
- Correspondence:
| | - Simone V. Alves
- Departamento de Genética e Biologia Evolutiva, Instituto de Biociências, Universidade de São Paulo, São Paulo 05508-090, Brazil; (S.V.A.); (L.E.S.N.)
| | - Luis E. S. Netto
- Departamento de Genética e Biologia Evolutiva, Instituto de Biociências, Universidade de São Paulo, São Paulo 05508-090, Brazil; (S.V.A.); (L.E.S.N.)
| | - Ohara Augusto
- Departamento de Bioquímica, Instituto de Química, Universidade de São Paulo, São Paulo 05508-000, Brazil;
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17
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Truzzi DR, Augusto O, Iretskii AV, Ford PC. Dynamics of Dinitrosyl Iron Complex (DNIC) Formation with Low Molecular Weight Thiols. Inorg Chem 2019; 58:13446-13456. [DOI: 10.1021/acs.inorgchem.9b02338] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Daniela R. Truzzi
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, California 93106-9510, United States
- Departamento de Bioquímica, Instituto de Química de São Paulo, Universidade de São Paulo, Caixa Postal 26077, CEP05513-970 São Paulo, SP, Brasil
| | - Ohara Augusto
- Departamento de Bioquímica, Instituto de Química de São Paulo, Universidade de São Paulo, Caixa Postal 26077, CEP05513-970 São Paulo, SP, Brasil
| | - Alexei V. Iretskii
- Department of Chemistry and Environmental Sciences, Lake Superior State University, Sault Sainte Marie, Michigan 49783 United States
| | - Peter C. Ford
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, California 93106-9510, United States
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18
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Chen YJ, Wu SC, Wang HC, Wu TH, Yuan SSF, Lu TT, Liaw WF, Wang YM. Activation of Angiogenesis and Wound Healing in Diabetic Mice Using NO-Delivery Dinitrosyl Iron Complexes. Mol Pharm 2019; 16:4241-4251. [PMID: 31436106 DOI: 10.1021/acs.molpharmaceut.9b00586] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
In diabetes, abnormal angiogenesis due to hyperglycemia and endothelial dysfunction impairs wound healing and results in high risks of diabetic foot ulcers and mortality. Alternative therapeutic methods were attempted to prevent diabetic complications through the activation of endothelial nitric oxide synthase. In this study, direct application of nitric oxide using dinitrosyl iron complexes (DNICs) to promote angiogenesis and wound healing under physiological conditions and in diabetic mice is investigated. Based on in vitro and in vivo studies, DNIC [Fe2(μ-SCH2CH2OH)2(NO)4] (DNIC-1) with a sustainable NO-release reactivity (t1/2 = 27.4 ± 0.5 h at 25 °C and 16.8 ± 1.8 h at 37 °C) activates the NO-sGC-cGMP pathway and displays the best pro-angiogenesis activity overwhelming other NO donors and the vascular endothelial growth factor. Moreover, this pro-angiogenesis effect of DNIC-1 restores the impaired angiogenesis in the ischemic hind limb and accelerates the recovery rate of wound closure in diabetic mice. This study translates synthetic DNIC-1 into a novel therapeutic agent for the treatment of diabetes and highlights its sustainable •NO-release reactivity on the activation of angiogenesis and wound healing.
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Affiliation(s)
| | | | - Hsiang-Ching Wang
- Biomedical Technology and Device Research Laboratories , Industrial Technology Research Institute , Hsinchu 310 , Taiwan
| | - Tung-Ho Wu
- Division of Cardiovascular Surgery, Department of Surgery and Division of Surgical Critical Care, Department of Critical Care Medicine , Veterans General Hospital , Kaohsiung 813 , Taiwan
| | - Shyng-Shiou F Yuan
- Translational Research Center and Department of Obstetrics and Gynecology , Kaohsiung Medical University Hospital, Kaohsiung Medical University , Kaohsiung 807 , Taiwan
| | | | | | - Yun-Ming Wang
- Department of Biomedical Science and Environmental Biology , Kaohsiung Medical University , Kaohsiung 807 , Taiwan
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19
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Pectol DC, Khan S, Chupik RB, Elsabahy M, Wooley KL, Darensbourg MY, Lim SM. Toward the Optimization of Dinitrosyl Iron Complexes as Therapeutics for Smooth Muscle Cells. Mol Pharm 2019; 16:3178-3187. [PMID: 31244220 DOI: 10.1021/acs.molpharmaceut.9b00389] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
In this study, dinitrosyl iron complexes (DNICs) are shown to deliver nitric oxide (NO) into the cytosol of vascular smooth muscle cells (SMCs), which play a major role in vascular relaxation and contraction. Malfunction of SMCs can lead to hypertension, asthma, and erectile dysfunction, among other disorders. For comparison of the five DNIC derivatives, the following protocols were examined: (a) the Griess assay to detect nitrite (derived from NO conversion) in the absence and presence of SMCs; (b) the 3-(4,5-dimethylthiazol-2-yl)-5-(3-carboxymethoxyphenyl)-2-(4-sulfophenyl)-2 H-tetrazolium (MTS) assay for cell viability; (c) an immunotoxicity assay to establish if DNICs stimulate immune response; and (d) a fluorometric assay to detect intracellular NO from treatment with DNICs. Dimeric Roussin's red ester (RRE)-type {Fe(NO)2}9 complexes containing phenylthiolate bridges, [(μ-SPh)Fe(NO)2]2 or SPhRRE, were found to deliver NO with the lowest effect on cell toxicity (i.e., highest IC50). In contrast, the RRE-DNIC with the biocompatible thioglucose moiety, [(μ-SGlu)Fe(NO)2]2 (SGlu = 1-thio-β-d-glucose tetraacetate) or SGluRRE, delivered a higher concentration of NO to the cytosol of SMCs with a 10-fold decrease in IC50. Additionally, monomeric DNICs stabilized by a bulky N-heterocyclic carbene (NHC), namely, 1,3-bis(2,4,6-trimethylphenyl)imidazolidene (IMes), were synthesized and yielded the DNIC complexes SGluNHC, [IMes(SGlu)Fe(NO)2], and SPhNHC, [IMes(SPh)Fe(NO)2]. These oxidized {Fe(NO)2}9 NHC DNICs have an IC50 of ∼7 μM; however, the NHC-based complexes did not transfer NO into the SMC. Per contra, the reduced, mononuclear {Fe(NO)2}10 neocuproine-based DNIC, neoDNIC, depressed the viability of the SMCs, as well as generated an increase of intracellular NO. Regardless of the coordination environment or oxidation state, all DNICs showed a dinitrosyl iron unit (DNIU)-dependent increase in viability. This study demonstrates a structure-function relationship between the DNIU coordination environment and the efficacy of the DNIC treatments.
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20
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Shumaev KB, Gorudko IV, Kosmachevskaya OV, Grigorieva DV, Panasenko ОM, Vanin AF, Topunov AF, Terekhova MS, Sokolov AV, Cherenkevich SN, Ruuge EK. Protective Effect of Dinitrosyl Iron Complexes with Glutathione in Red Blood Cell Lysis Induced by Hypochlorous Acid. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2019; 2019:2798154. [PMID: 31089406 PMCID: PMC6476047 DOI: 10.1155/2019/2798154] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/19/2018] [Revised: 11/15/2018] [Accepted: 01/27/2019] [Indexed: 01/05/2023]
Abstract
Hypochlorous acid (HOCl), one of the major precursors of free radicals in body cells and tissues, is endowed with strong prooxidant activity. In living systems, dinitrosyl iron complexes (DNIC) with glutathione ligands play the role of nitric oxide donors and possess a broad range of biological activities. At micromolar concentrations, DNIC effectively inhibit HOCl-induced lysis of red blood cells (RBCs) and manifest an ability to scavenge alkoxyl and alkylperoxyl radicals generated in the reaction of HOCl with tert-butyl hydroperoxide. DNIC proved to be more effective cytoprotective agents and organic free radical scavengers in comparison with reduced glutathione (GSH). At the same time, the kinetics of HOCl-induced oxidation of glutathione ligands in DNIC is slower than in the case of GSH. HOCl-induced oxidative conversions of thiolate ligands cause modification of DNIC, which manifests itself in inclusion of other ligands. It is suggested that the strong inhibiting effect of DNIC with glutathione on HOCl-induced lysis of RBCs is determined by their antioxidant and regulatory properties.
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Affiliation(s)
- Konstantin B. Shumaev
- Research Center of Biotechnology of the Russian Academy of Sciences, Bach Institute of Biochemistry, Moscow 119071, Russia
- National Medical Research Centre for Cardiology, Moscow 121552, Russia
| | | | - Olga V. Kosmachevskaya
- Research Center of Biotechnology of the Russian Academy of Sciences, Bach Institute of Biochemistry, Moscow 119071, Russia
| | | | - Оleg M. Panasenko
- Federal Research and Clinical Center of Physical-Chemical Medicine of Federal Medical Biological Agency, Moscow 119435, Russia
- Pirogov Russian National Research Medical University, Moscow 117997, Russia
| | - Anatoly F. Vanin
- Russian Academy of Sciences, Semenov Institute of Chemical Physics, Moscow 119991, Russia
| | - Alexey F. Topunov
- Research Center of Biotechnology of the Russian Academy of Sciences, Bach Institute of Biochemistry, Moscow 119071, Russia
| | | | - Alexey V. Sokolov
- Federal Research and Clinical Center of Physical-Chemical Medicine of Federal Medical Biological Agency, Moscow 119435, Russia
- Institute of Experimental Medicine, Saint Petersburg 197376, Russia
| | | | - Enno K. Ruuge
- National Medical Research Centre for Cardiology, Moscow 121552, Russia
- Lomonosov Moscow State University, Faculty of Physics, Moscow 119234, Russia
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21
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Truzzi DR, Augusto O, Ford PC. Thiyl radicals are co-products of dinitrosyl iron complex (DNIC) formation. Chem Commun (Camb) 2019; 55:9156-9159. [DOI: 10.1039/c9cc04454j] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Thiyl radicals are detected by EPR as co-products of dinitrosyl iron complex (DNIC) formation.
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Affiliation(s)
- Daniela R. Truzzi
- Department of Chemistry and Biochemistry
- University of California
- Santa Barbara
- Santa Barbara
- USA
| | - Ohara Augusto
- Departamento de Bioquímica
- Instituto de Química
- Universidade de São Paulo
- Brazil
| | - Peter C. Ford
- Department of Chemistry and Biochemistry
- University of California
- Santa Barbara
- Santa Barbara
- USA
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22
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Hsiao HY, Chung CW, Santos JH, Villaflores OB, Lu TT. Fe in biosynthesis, translocation, and signal transduction of NO: toward bioinorganic engineering of dinitrosyl iron complexes into NO-delivery scaffolds for tissue engineering. Dalton Trans 2019; 48:9431-9453. [DOI: 10.1039/c9dt00777f] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The ubiquitous physiology of nitric oxide enables the bioinorganic engineering of [Fe(NO)2]-containing and NO-delivery scaffolds for tissue engineering.
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Affiliation(s)
- Hui-Yi Hsiao
- Center for Tissue Engineering
- Chang Gung Memorial Hospital
- Taoyuan
- Taiwan
| | - Chieh-Wei Chung
- Institute of Biomedical Engineering
- National Tsing Hua University
- Hsinchu
- Taiwan
| | | | - Oliver B. Villaflores
- Department of Biochemistry
- Faculty of Pharmacy
- University of Santo Tomas
- Manila
- Philippines
| | - Tsai-Te Lu
- Institute of Biomedical Engineering
- National Tsing Hua University
- Hsinchu
- Taiwan
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23
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Lu TT, Wang YM, Hung CH, Chiou SJ, Liaw WF. Bioinorganic Chemistry of the Natural [Fe(NO)2] Motif: Evolution of a Functional Model for NO-Related Biomedical Application and Revolutionary Development of a Translational Model. Inorg Chem 2018; 57:12425-12443. [DOI: 10.1021/acs.inorgchem.8b01818] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
| | - Yun-Ming Wang
- Department of Biological Science and Technology, National Chiao Tung University, Hsinchu 30013, Taiwan
| | | | - Show-Jen Chiou
- Department of Applied Chemistry, National Chiayi University, Chiayi 60004, Taiwan
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24
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Mukosera GT, Liu T, Ishtiaq Ahmed AS, Li Q, Sheng MHC, Tipple TE, Baylink DJ, Power GG, Blood AB. Detection of dinitrosyl iron complexes by ozone-based chemiluminescence. Nitric Oxide 2018; 79:57-67. [PMID: 30059767 PMCID: PMC6277231 DOI: 10.1016/j.niox.2018.07.005] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2018] [Revised: 07/23/2018] [Accepted: 07/23/2018] [Indexed: 12/19/2022]
Abstract
Dinitrosyl iron complexes (DNICs) are important intermediates in the metabolism of nitric oxide (NO). They have been considered to be NO storage adducts able to release NO, scavengers of excess NO during inflammatory hypotensive shock, and mediators of apoptosis in cancer cells, among many other functions. Currently, all studies of DNICs in biological matrices use electron paramagnetic resonance (EPR) for both detection and quantification. EPR is limited, however, by its ability to detect only paramagnetic mononuclear DNICs even though EPR-silent binuclear are likely to be prevalent. Furthermore, physiological concentrations of mononuclear DNICs are usually lower than the EPR detection limit (1 μM). We have thus developed a chemiluminescence-based method for the selective detection of both DNIC forms at physiological, pathophysiological, and pharmacologic conditions. We have also demonstrated the use of the new method in detecting DNIC formation in the presence of nitrite and nitrosothiols within biological fluids and tissue. This new method, which can be used alone or in tandem with EPR, has the potential to offer insight about the involvement of DNICs in many NO-dependent pathways.
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Affiliation(s)
- George T Mukosera
- Department of Pediatrics, Loma Linda University School of Medicine, Loma Linda, CA, 92354, USA
| | - Taiming Liu
- Department of Pediatrics, Loma Linda University School of Medicine, Loma Linda, CA, 92354, USA
| | - Abu Shufian Ishtiaq Ahmed
- Regenerative Medicine Division, Department of Medicine, Loma Linda University School of Medicine, Loma Linda, CA, 92354, USA; Center for Dental Research, Loma Linda University School of Dentistry, Loma Linda, CA, 92350, USA
| | - Qian Li
- Neonatal Redox Biology Laboratory, Department of Pediatrics, University of Alabama at Birmingham, Birmingham, AL, 35294, USA
| | - Matilda H-C Sheng
- Regenerative Medicine Division, Department of Medicine, Loma Linda University School of Medicine, Loma Linda, CA, 92354, USA
| | - Trent E Tipple
- Neonatal Redox Biology Laboratory, Department of Pediatrics, University of Alabama at Birmingham, Birmingham, AL, 35294, USA
| | - David J Baylink
- Regenerative Medicine Division, Department of Medicine, Loma Linda University School of Medicine, Loma Linda, CA, 92354, USA
| | - Gordon G Power
- Lawrence D. Longo Center for Perinatal Biology, Loma Linda University School of Medicine, Loma Linda, CA, 92354, USA
| | - Arlin B Blood
- Department of Pediatrics, Loma Linda University School of Medicine, Loma Linda, CA, 92354, USA; Lawrence D. Longo Center for Perinatal Biology, Loma Linda University School of Medicine, Loma Linda, CA, 92354, USA.
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25
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Shumaev KB, Dudylina AL, Ivanova MV, Pugachenko IS, Ruuge EK. Dinitrosyl iron complexes: Formation and antiradical action in heart mitochondria. Biofactors 2018; 44:237-244. [PMID: 29469215 DOI: 10.1002/biof.1418] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/28/2017] [Accepted: 01/25/2018] [Indexed: 02/02/2023]
Abstract
Mitochondria are widely known as a major source of reactive oxygen and nitrogen species for the cardiovascular system. Numerous studies established that superoxide anion radical production by heart mitochondria is only slightly suppressed under conditions of deep hypoxia, but is completely blocked under anoxia. It was found also that dinitrosyl iron complexes (DNIC) compare favourably with other physiologically active derivatives of nitric oxide (NO). DNIC with glutathione effectively scavenge superoxide radicals generated by mitochondria at different partial pressures of oxygen. Under conditions of simulated hypoxia, the synthesis of thiol-containing DNIC takes place in mitochondria and is concomitant with a significant decrease in the concentration of NO metabolites at the reoxygenation step. Free NO required for DNIC synthesis is generated in the reaction of S-nitrosothiols with superoxide or during single-electron oxidation of the nitroxyl radical (HNO) by coenzyme Q. Plausible mechanisms of antiradical effects of DNIC and their protective role in oxidative stress induced by hypoxia/reoxygenation of myocardial tissues are considered. © 2018 BioFactors, 44(3):237-244, 2018.
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Affiliation(s)
- Konstantin B Shumaev
- A.N. Bach Institute of Biochemistry, Research Center of Biotechnology of the Russian Academy of Sciences, Moscow, 119071, Russia
- National Medical Research Centre for Cardiology, Moscow, 121552, Russia
| | - Arina L Dudylina
- Faculty of Physics, Lomonosov Moscow State University, Moscow, 119234, Russia
| | - Marina V Ivanova
- National Medical Research Centre for Cardiology, Moscow, 121552, Russia
| | - Igor S Pugachenko
- A.N. Bach Institute of Biochemistry, Research Center of Biotechnology of the Russian Academy of Sciences, Moscow, 119071, Russia
| | - Enno K Ruuge
- National Medical Research Centre for Cardiology, Moscow, 121552, Russia
- Faculty of Physics, Lomonosov Moscow State University, Moscow, 119234, Russia
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26
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Damasceno FC, Condeles AL, Lopes AKB, Facci RR, Linares E, Truzzi DR, Augusto O, Toledo JC. The labile iron pool attenuates peroxynitrite-dependent damage and can no longer be considered solely a pro-oxidative cellular iron source. J Biol Chem 2018; 293:8530-8542. [PMID: 29661935 DOI: 10.1074/jbc.ra117.000883] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2017] [Revised: 04/12/2018] [Indexed: 01/01/2023] Open
Abstract
The ubiquitous cellular labile iron pool (LIP) is often associated with the production of the highly reactive hydroxyl radical, which forms through a redox reaction with hydrogen peroxide. Peroxynitrite is a biologically relevant peroxide produced by the recombination of nitric oxide and superoxide. It is a strong oxidant that may be involved in multiple pathological conditions, but whether and how it interacts with the LIP are unclear. Here, using fluorescence spectroscopy, we investigated the interaction between the LIP and peroxynitrite by monitoring peroxynitrite-dependent accumulation of nitrosated and oxidized fluorescent intracellular indicators. We found that, in murine macrophages, removal of the LIP with membrane-permeable iron chelators sustainably accelerates the peroxynitrite-dependent oxidation and nitrosation of these indicators. These observations could not be reproduced in cell-free assays, indicating that the chelator-enhancing effect on peroxynitrite-dependent modifications of the indicators depended on cell constituents, presumably including LIP, that react with these chelators. Moreover, neither free nor ferrous-complexed chelators stimulated intracellular or extracellular oxidative and nitrosative chemistries. On the basis of these results, LIP appears to be a relevant and competitive cellular target of peroxynitrite or its derived oxidants, and thereby it reduces oxidative processes, an observation that may change the conventional notion that the LIP is simply a cellular source of pro-oxidant iron.
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Affiliation(s)
- Fernando Cruvinel Damasceno
- From the Departamento de Química, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, CEP 14040-901 and
| | - André Luis Condeles
- From the Departamento de Química, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, CEP 14040-901 and
| | - Angélica Kodama Bueno Lopes
- From the Departamento de Química, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, CEP 14040-901 and
| | - Rômulo Rodrigues Facci
- From the Departamento de Química, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, CEP 14040-901 and
| | - Edlaine Linares
- the Departamento de Bioquímica, Instituto de Química, Universidade de São Paulo, São Paulo, CEP 05508-000, Brazil
| | - Daniela Ramos Truzzi
- the Departamento de Bioquímica, Instituto de Química, Universidade de São Paulo, São Paulo, CEP 05508-000, Brazil
| | - Ohara Augusto
- the Departamento de Bioquímica, Instituto de Química, Universidade de São Paulo, São Paulo, CEP 05508-000, Brazil
| | - José Carlos Toledo
- From the Departamento de Química, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, CEP 14040-901 and
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27
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Sahni S, Hickok JR, Thomas DD. Nitric oxide reduces oxidative stress in cancer cells by forming dinitrosyliron complexes. Nitric Oxide 2018. [PMID: 29522907 DOI: 10.1016/j.niox.2018.03.003] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
The chelatable iron pool (CIP) is a small but chemically significant fraction of total cellular iron. While this dynamic population of iron is limited, it is redox active and capable of generating reactive oxygen species (ROS) that can lead to oxidative stress which is associated with various pathologies. Nitric oxide (•NO), is a free radical signalling molecule that regulates numerous physiological and pathological conditions. We have previously shown that macrophages exposed to endogenously generated or exogenously administered nitric oxide (•NO) results in its interaction with CIP to form dinitrosyliron complexes with thiol containing ligands (DNICs). In this study we assessed the consequences of DNIC formation in cancer cells as •NO is known to be associated with numerous malignancies. Incubation of cancer cells with •NO led to a time and dose dependent increase in formation of DNICs. The formation of DNICs results in the sequestration of the CIP which is a major source of iron for redox reactions and reactive oxygen species (ROS) generation. Therefore, we set out to test the antioxidant effect of •NO by measuring the ability of DNICs to protect cells against oxidative stress. We observed that cancer cells treated with •NO were partially protected against H2O2 mediated cytotoxicity. This correlated to a concomitant decrease in the formation of oxidants when •NO was present during H2O2 treatment. Similar protective effects were achieved by treating cells with iron chelators in the presence of H2O2. Interestingly, •NO decreased the rate of cellular metabolism of H2O2 suggesting that a proportion of H2O2 is consumed via reactions with cellular iron. When the CIP was artificially increased by supplementation of cells with iron, a significant decrease in the cytoprotective effect of •NO was observed. Notably, •NO concentrations, at which cytoprotective and antioxidant effects were observed, correlated with concentration-dependent increases in DNIC formation. Collectively, these results demonstrate that •NO has antioxidant properties by its ability to sequester cellular iron. This could play a significant role in variety of diseases involving ROS mediated toxicity like cancer and neurodegenerative disorders where •NO has been shown to be an important etiologic factor.
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Affiliation(s)
- Sumit Sahni
- Molecular Pharmacology and Pathology Program, Department of Pathology, University of Sydney, Australia
| | - Jason R Hickok
- Department of Medicinal Chemistry & Pharmacognosy, University of Illinois at Chicago, Chicago, IL 60612, USA
| | - Douglas D Thomas
- Department of Medicinal Chemistry & Pharmacognosy, University of Illinois at Chicago, Chicago, IL 60612, USA.
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28
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Thomas DD, Corey C, Hickok J, Wang Y, Shiva S. Differential mitochondrial dinitrosyliron complex formation by nitrite and nitric oxide. Redox Biol 2017; 15:277-283. [PMID: 29304478 PMCID: PMC5975210 DOI: 10.1016/j.redox.2017.12.007] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2017] [Revised: 12/14/2017] [Accepted: 12/17/2017] [Indexed: 01/09/2023] Open
Abstract
Nitrite represents an endocrine reserve of bioavailable nitric oxide (NO) that mediates a number of physiological responses including conferral of cytoprotection after ischemia/reperfusion (I/R). It has long been known that nitrite can react with non-heme iron to form dinitrosyliron complexes (DNIC). However, it remains unclear how quickly nitrite-dependent DNIC form in vivo, whether formation kinetics differ from that of NO-dependent DNIC, and whether DNIC play a role in the cytoprotective effects of nitrite. Here we demonstrate that chronic but not acute nitrite supplementation increases DNIC concentration in the liver and kidney of mice. Although DNIC have been purported to have antioxidant properties, we show that the accumulation of DNIC in vivo is not associated with nitrite-dependent cytoprotection after hepatic I/R. Further, our data in an isolated mitochondrial model of anoxia/reoxygenation show that while NO and nitrite demonstrate similar S-nitrosothiol formation kinetics, DNIC formation is significantly greater with NO and associated with mitochondrial dysfunction as well as inhibition of aconitase activity. These data are the first to directly compare mitochondrial DNIC formation by NO and nitrite. This study suggests that nitrite-dependent DNIC formation is a physiological consequence of dietary nitrite. The data presented herein implicate mitochondrial DNIC formation as a potential mechanism underlying the differential cytoprotective effects of nitrite and NO after I/R, and suggest that DNIC formation is potentially responsible for the cytotoxic effects observed at high NO concentrations. Dietary nitrite results in DNIC formation in many tissues, most notably the liver. Nitrite-dependent DNIC accumulate within the mitochondrion. NO generates greater DNIC formation in the mitochondrion than nitrite. At high concentrations of NO DNIC formation is associated with mitochondrial injury.
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Affiliation(s)
- Douglas D Thomas
- Department of Medicinal Chemistry & Pharmacognosy, University of Illinois at Chicago, 833 South Wood St., Chicago IL 60612, USA.
| | - Catherine Corey
- Vascular Medicine Institute, University of Pittsburgh School of Medicine, BST1240E, 200 Lothrop St, Pittsburgh, PA 15261, USA
| | - Jason Hickok
- Department of Medicinal Chemistry & Pharmacognosy, University of Illinois at Chicago, 833 South Wood St., Chicago IL 60612, USA
| | - Yinna Wang
- Vascular Medicine Institute, University of Pittsburgh School of Medicine, BST1240E, 200 Lothrop St, Pittsburgh, PA 15261, USA
| | - Sruti Shiva
- Vascular Medicine Institute, University of Pittsburgh School of Medicine, BST1240E, 200 Lothrop St, Pittsburgh, PA 15261, USA; Department of Pharmacology & Chemical Biology, University of Pittsburgh School of Medicine, Pittsburgh, PA 15261, USA; Center for Metabolism & Mitochondrial Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA 15261, USA.
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29
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Lok HC, Sahni S, Jansson PJ, Kovacevic Z, Hawkins CL, Richardson DR. A Nitric Oxide Storage and Transport System That Protects Activated Macrophages from Endogenous Nitric Oxide Cytotoxicity. J Biol Chem 2016; 291:27042-27061. [PMID: 27866158 DOI: 10.1074/jbc.m116.763714] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2016] [Revised: 11/16/2016] [Indexed: 12/20/2022] Open
Abstract
Nitric oxide (NO) is integral to macrophage cytotoxicity against tumors due to its ability to induce iron release from cancer cells. However, the mechanism for how activated macrophages protect themselves from endogenous NO remains unknown. We previously demonstrated by using tumor cells that glutathione S-transferase P1 (GSTP1) sequesters NO as dinitrosyl-dithiol iron complexes (DNICs) and inhibits NO-mediated iron release from cells via the transporter multidrug resistance protein 1 (MRP1/ABCC1). These prior studies also showed that MRP1 and GSTP1 protect tumor cells against NO cytotoxicity, which parallels their roles in defending cancer cells from cytotoxic drugs. Considering this, and because GSTP1 and MRP1 are up-regulated during macrophage activation, this investigation examined whether this NO storage/transport system protects macrophages against endogenous NO cytotoxicity in two well characterized macrophage cell types (J774 and RAW 264.7). MRP1 expression markedly increased upon macrophage activation, and the role of MRP1 in NO-induced 59Fe release was demonstrated by Mrp1 siRNA and the MRP1 inhibitor, MK571, which inhibited NO-mediated iron efflux. Furthermore, Mrp1 silencing increased DNIC accumulation in macrophages, indicating a role for MRP1 in transporting DNICs out of cells. In addition, macrophage 59Fe release was enhanced by silencing Gstp1, suggesting GSTP1 was responsible for DNIC binding/storage. Viability studies demonstrated that GSTP1 and MRP1 protect activated macrophages from NO cytotoxicity. This was confirmed by silencing nuclear factor-erythroid 2-related factor 2 (Nrf2), which decreased MRP1 and GSTP1 expression, concomitant with reduced 59Fe release and macrophage survival. Together, these results demonstrate a mechanism by which macrophages protect themselves against NO cytotoxicity.
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Affiliation(s)
- Hiu Chuen Lok
- From the Molecular Pharmacology and Pathology Program, Department of Pathology and Bosch Institute, University of Sydney, Sydney, New South Wales 2006 and
| | - Sumit Sahni
- From the Molecular Pharmacology and Pathology Program, Department of Pathology and Bosch Institute, University of Sydney, Sydney, New South Wales 2006 and
| | - Patric J Jansson
- From the Molecular Pharmacology and Pathology Program, Department of Pathology and Bosch Institute, University of Sydney, Sydney, New South Wales 2006 and
| | - Zaklina Kovacevic
- From the Molecular Pharmacology and Pathology Program, Department of Pathology and Bosch Institute, University of Sydney, Sydney, New South Wales 2006 and
| | - Clare L Hawkins
- the Heart Research Institute, Sydney, New South Wales 2042, Australia
| | - Des R Richardson
- From the Molecular Pharmacology and Pathology Program, Department of Pathology and Bosch Institute, University of Sydney, Sydney, New South Wales 2006 and
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30
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Lancaster JR. How are nitrosothiols formed de novo in vivo? Arch Biochem Biophys 2016; 617:137-144. [PMID: 27794428 DOI: 10.1016/j.abb.2016.10.015] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2016] [Revised: 10/23/2016] [Accepted: 10/25/2016] [Indexed: 02/07/2023]
Abstract
The biological mechanisms of de novo formation of cellular nitrosothiols (as opposed to transnitrosation) are reviewed. The approach is to introduce chemical foundations for each mechanism, followed by evidence in biological systems. The general categories include mechanisms involving nitrous acid, NO autoxidation and oxidant stress, redox active and inactive metal ions, and sulfide/persulfide. Important conclusions/speculations are that de novo cellular thiol nitrosation (1) is an oxidative process, and so should be considered within the family of other thiol oxidative modifications, (2) may not involve a single dominant process but depends on the specific conditions, (3) does not involve O2 under at least some conditions, and (4) may serve to provide a "substrate pool" of protein cysteine nitrosothiol which could, through subsequent enzymatic transnitrosation/denitrosation, be "rearranged" to accomplish the specificity and regulatory control required for effective post-translational signaling.
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Affiliation(s)
- Jack R Lancaster
- Department of Pharmacology & Chemical Biology, University of Pittsburgh School of Medicine, United States; Department of Medicine, University of Pittsburgh School of Medicine, United States; Department of Surgery, University of Pittsburgh School of Medicine, United States
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31
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Darbandi S, Darbandi M, Mokarram P, Sadeghi MR, Owji AA, Khorram Khorshid HR, Zhao B, Heidari M. CME Article:The Acupuncture-Affected Gene Expressions and Epigenetic Modifications in Oxidative Stress–Associated Diseases. Med Acupunct 2016. [DOI: 10.1089/acu.2015.1134] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Affiliation(s)
- Sara Darbandi
- Reproductive Biotechnology Research Center, Avicenna Research Institute, ACECR, Tehran, Iran
| | - Mahsa Darbandi
- Reproductive Biotechnology Research Center, Avicenna Research Institute, ACECR, Tehran, Iran
| | - Pooneh Mokarram
- Department of Biochemistry, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mohammad Reza Sadeghi
- Reproductive Immunology Research Center, Avicenna Research Institute, ACECR, Tehran, Iran
| | - Ali Akbar Owji
- Department of Biochemistry, Shiraz University of Medical Sciences, Shiraz, Iran
| | | | - Baxiao Zhao
- School of Acupuncture-Moxibustion and Tuina, Beijing University of Chinese Medicine, Beijing, China
| | - Mahnaz Heidari
- Reproductive Biotechnology Research Center, Avicenna Research Institute, ACECR, Tehran, Iran
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32
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Cheng F, Bourseau-Guilmain E, Belting M, Fransson LÅ, Mani K. Hypoxia induces NO-dependent release of heparan sulfate in fibroblasts from the Alzheimer mouse Tg2576 by activation of nitrite reduction. Glycobiology 2016; 26:623-34. [DOI: 10.1093/glycob/cww007] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2015] [Accepted: 01/13/2016] [Indexed: 12/12/2022] Open
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33
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Shimizu T, Huang D, Yan F, Stranava M, Bartosova M, Fojtíková V, Martínková M. Gaseous O2, NO, and CO in signal transduction: structure and function relationships of heme-based gas sensors and heme-redox sensors. Chem Rev 2015; 115:6491-533. [PMID: 26021768 DOI: 10.1021/acs.chemrev.5b00018] [Citation(s) in RCA: 131] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Toru Shimizu
- †Department of Cell Biology and Genetics and Key Laboratory of Molecular Biology in High Cancer Incidence Coastal Chaoshan Area of Guangdong Higher Education Institutes, Shantou University Medical College, Shantou, Guangdong 515041, China
- ‡Department of Biochemistry, Faculty of Science, Charles University in Prague, Prague 2 128 43, Czech Republic
- §Research Center for Compact Chemical System, National Institute of Advanced Industrial Science and Technology (AIST), Sendai 983-8551, Japan
| | - Dongyang Huang
- †Department of Cell Biology and Genetics and Key Laboratory of Molecular Biology in High Cancer Incidence Coastal Chaoshan Area of Guangdong Higher Education Institutes, Shantou University Medical College, Shantou, Guangdong 515041, China
| | - Fang Yan
- †Department of Cell Biology and Genetics and Key Laboratory of Molecular Biology in High Cancer Incidence Coastal Chaoshan Area of Guangdong Higher Education Institutes, Shantou University Medical College, Shantou, Guangdong 515041, China
| | - Martin Stranava
- ‡Department of Biochemistry, Faculty of Science, Charles University in Prague, Prague 2 128 43, Czech Republic
| | - Martina Bartosova
- ‡Department of Biochemistry, Faculty of Science, Charles University in Prague, Prague 2 128 43, Czech Republic
| | - Veronika Fojtíková
- ‡Department of Biochemistry, Faculty of Science, Charles University in Prague, Prague 2 128 43, Czech Republic
| | - Markéta Martínková
- ‡Department of Biochemistry, Faculty of Science, Charles University in Prague, Prague 2 128 43, Czech Republic
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34
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Rhine MA, Sanders BC, Patra AK, Harrop TC. Overview and New Insights into the Thiol Reactivity of Coordinated NO in {MNO}6/7/8 (M = Fe, Co) Complexes. Inorg Chem 2015; 54:9351-66. [DOI: 10.1021/acs.inorgchem.5b00883] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Melody A. Rhine
- Department of Chemistry
and Center for Metalloenzyme Studies, The University of Georgia, 140 Cedar Street, Athens, Georgia 30602, United States
| | - Brian C. Sanders
- Department of Chemistry
and Center for Metalloenzyme Studies, The University of Georgia, 140 Cedar Street, Athens, Georgia 30602, United States
| | - Ashis K. Patra
- Department of Chemistry
and Center for Metalloenzyme Studies, The University of Georgia, 140 Cedar Street, Athens, Georgia 30602, United States
| | - Todd C. Harrop
- Department of Chemistry
and Center for Metalloenzyme Studies, The University of Georgia, 140 Cedar Street, Athens, Georgia 30602, United States
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35
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Pereira JCM, Iretskii AV, Han RM, Ford PC. Dinitrosyl Iron Complexes with Cysteine. Kinetics Studies of the Formation and Reactions of DNICs in Aqueous Solution. J Am Chem Soc 2014; 137:328-36. [DOI: 10.1021/ja510393q] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- José Clayston Melo Pereira
- Department
of Chemistry and Biochemistry, University of California, Santa Barbara, Santa
Barbara, California 93106-9510, United States
- Departamento
de Química Geral e Inorgânica, Instituto de Química
de Araraquara, UNESP − Universidade Estadual Paulista, Araraquara, São Paulo 14801−970, Brazil
| | - Alexei V. Iretskii
- Department
of Chemistry and Biochemistry, University of California, Santa Barbara, Santa
Barbara, California 93106-9510, United States
- Department
of Chemistry and Environmental Sciences, Lake Superior State University, Sault Sainte Marie, Michigan 49783, United States
| | - Rui-Min Han
- Department
of Chemistry and Biochemistry, University of California, Santa Barbara, Santa
Barbara, California 93106-9510, United States
- Department
of Chemistry, Renmin University of China, 59 ZhongGuanCun St., Beijing, 100872, China
| | - Peter C. Ford
- Department
of Chemistry and Biochemistry, University of California, Santa Barbara, Santa
Barbara, California 93106-9510, United States
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36
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Damasceno FC, Facci RR, da Silva TM, Toledo JC. Mechanisms and kinetic profiles of superoxide-stimulated nitrosative processes in cells using a diaminofluorescein probe. Free Radic Biol Med 2014; 77:270-80. [PMID: 25242205 DOI: 10.1016/j.freeradbiomed.2014.09.012] [Citation(s) in RCA: 6] [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: 04/22/2014] [Revised: 09/01/2014] [Accepted: 09/06/2014] [Indexed: 11/18/2022]
Abstract
In this study, we examined the mechanisms and kinetic profiles of intracellular nitrosative processes using diaminofluorescein (DAF-2) as a target in RAW 264.7 cells. The intracellular formation of the fluorescent, nitrosated product diaminofluorescein triazol (DAFT) from both endogenous and exogenous nitric oxide (NO) was prevented by deoxygenation and by cell membrane-permeable superoxide (O2(-)) scavengers but not by extracellular bovine Cu,Zn-SOD. In addition, the DAFT formation rate decreased in the presence of cell membrane-permeable Mn porphyrins that are known to scavenge peroxynitrite (ONOO(-)) but was enhanced by HCO3(-)/CO2. Together, these results indicate that nitrosative processes in RAW 264.7 cells depend on endogenous intracellular O2(-) and are stimulated by ONOO(-)/CO2-derived radical oxidants. The N2O3 scavenger sodium azide (NaN3) only partially attenuated the DAFT formation rate and only with high NO (>120 nM), suggesting that DAFT formation occurs by nitrosation (azide-susceptible DAFT formation) and predominantly by oxidative nitrosylation (azide-resistant DAFT formation). Interestingly, the DAFT formation rate increased linearly with NO concentrations of up to 120-140 nM but thereafter underwent a sharp transition and became insensitive to NO. This behavior indicates the sudden exhaustion of an endogenous cell substrate that reacts rapidly with NO and induces nitrosative processes, consistent with the involvement of intracellular O2(-). On the other hand, intracellular DAFT formation stimulated by a fixed flux of xanthine oxidase-derived extracellular O2(-) that also occurs by nitrosation and oxidative nitrosylation increased, peaked, and then decreased with increasing NO, as previously observed. Thus, our findings complementarily show that intra- and extracellular O2(-)-dependent nitrosative processes occurring by the same chemical mechanisms do not necessarily depend on NO concentration and exhibit different unusual kinetic profiles with NO dynamics, depending on the biological compartment in which NO and O2(-) interact.
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Affiliation(s)
- Fernando Cruvinel Damasceno
- Departamento de Química, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, CEP 14040-901, Ribeirão Preto, SP, Brazil
| | - Rômulo Rodrigues Facci
- Departamento de Química, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, CEP 14040-901, Ribeirão Preto, SP, Brazil
| | - Thalita Marques da Silva
- Departamento de Química, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, CEP 14040-901, Ribeirão Preto, SP, Brazil
| | - José Carlos Toledo
- Departamento de Química, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, CEP 14040-901, Ribeirão Preto, SP, Brazil.
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37
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Lok HC, Sahni S, Richardson V, Kalinowski DS, Kovacevic Z, Lane DJR, Richardson DR. Glutathione S-transferase and MRP1 form an integrated system involved in the storage and transport of dinitrosyl-dithiolato iron complexes in cells. Free Radic Biol Med 2014; 75:14-29. [PMID: 25035074 DOI: 10.1016/j.freeradbiomed.2014.07.002] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/27/2014] [Revised: 06/26/2014] [Accepted: 07/01/2014] [Indexed: 12/11/2022]
Abstract
Nitrogen monoxide (NO) is vital for many essential biological processes as a messenger and effector molecule. The physiological importance of NO is the result of its high affinity for iron in the active sites of proteins such as guanylate cyclase. Indeed, NO possesses a rich coordination chemistry with iron and the formation of dinitrosyl-dithiolato iron complexes (DNICs) is well documented. In mammals, NO generated by cytotoxic activated macrophages has been reported to play a role as a cytotoxic effector against tumor cells by binding and releasing intracellular iron. Studies from our laboratory have shown that two proteins traditionally involved in drug resistance, namely multidrug-resistance protein 1 and glutathione S-transferase, play critical roles in intracellular NO transport and storage through their interaction with DNICs (R.N. Watts et al., Proc. Natl. Acad. Sci. USA 103:7670-7675, 2006; H. Lok et al., J. Biol. Chem. 287:607-618, 2012). Notably, DNICs are present at high concentrations in cells and are biologically available. These complexes have a markedly longer half-life than free NO, making them an ideal "common currency" for this messenger molecule. Considering the many critical roles NO plays in health and disease, a better understanding of its intracellular trafficking mechanisms will be vital for the development of new therapeutics.
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Affiliation(s)
- H C Lok
- Molecular Pharmacology and Pathology Program, Department of Pathology and Bosch Institute, University of Sydney, Sydney, NSW 2006, Australia
| | - S Sahni
- Molecular Pharmacology and Pathology Program, Department of Pathology and Bosch Institute, University of Sydney, Sydney, NSW 2006, Australia
| | - V Richardson
- Molecular Pharmacology and Pathology Program, Department of Pathology and Bosch Institute, University of Sydney, Sydney, NSW 2006, Australia
| | - D S Kalinowski
- Molecular Pharmacology and Pathology Program, Department of Pathology and Bosch Institute, University of Sydney, Sydney, NSW 2006, Australia
| | - Z Kovacevic
- Molecular Pharmacology and Pathology Program, Department of Pathology and Bosch Institute, University of Sydney, Sydney, NSW 2006, Australia
| | - D J R Lane
- Molecular Pharmacology and Pathology Program, Department of Pathology and Bosch Institute, University of Sydney, Sydney, NSW 2006, Australia
| | - D R Richardson
- Molecular Pharmacology and Pathology Program, Department of Pathology and Bosch Institute, University of Sydney, Sydney, NSW 2006, Australia.
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