1
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Mukherjee S, Klarenbeek J, El Oualid F, van den Broek B, Jalink K. "Radical" differences between two FLIM microscopes affect interpretation of cell signaling dynamics. iScience 2024; 27:110268. [PMID: 39036041 PMCID: PMC11257777 DOI: 10.1016/j.isci.2024.110268] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Revised: 02/12/2024] [Accepted: 06/11/2024] [Indexed: 07/23/2024] Open
Abstract
The outcome of cell signaling depends not only on signal strength but also on temporal progression. We use Fluorescence Lifetime Imaging of Resonance Energy Transfer (FLIM/FRET) biosensors to investigate intracellular signaling dynamics. We examined the β1 receptor-Gαs-cAMP signaling axis using both widefield frequency domain FLIM (fdFLIM) and fast confocal time-correlated single photon counting (TCSPC) setups. Unexpectedly, we observed that fdFLIM revealed transient cAMP responses in HeLa and Cos7 cells, contrasting with sustained responses as detected with TCSPC. Investigation revealed no light-induced effects on cAMP generation or breakdown. Rather, folic acid present in the imaging medium appeared to be the culprit, as its excitation with blue light sensitized degradation of β1 agonists. Our findings highlight the impact of subtle phototoxicity on experimental outcomes, advocating confocal TCSPC for reliable analysis of response kinetics and stressing the need for full disclosure of chemical formulations by scientific vendors.
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Affiliation(s)
- Sravasti Mukherjee
- Department of Cell Biology, The Netherlands Cancer Institute, Plesmanlaan 121, Amsterdam 1066CX, the Netherlands
- Swammerdam Institute of Life Sciences, University of Amsterdam, Science Park 904, Amsterdam 1098 XH, the Netherlands
| | - Jeffrey Klarenbeek
- Department of Cell Biology, The Netherlands Cancer Institute, Plesmanlaan 121, Amsterdam 1066CX, the Netherlands
| | - Farid El Oualid
- UbiQ Bio B.V., Science Park 301, Amsterdam 1098 XH, the Netherlands
| | - Bram van den Broek
- Department of Cell Biology, The Netherlands Cancer Institute, Plesmanlaan 121, Amsterdam 1066CX, the Netherlands
- BioImaging Facility, The Netherlands Cancer Institute, Plesmanlaan 121, Amsterdam 1066CX, the Netherlands
| | - Kees Jalink
- Department of Cell Biology, The Netherlands Cancer Institute, Plesmanlaan 121, Amsterdam 1066CX, the Netherlands
- Swammerdam Institute of Life Sciences, University of Amsterdam, Science Park 904, Amsterdam 1098 XH, the Netherlands
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2
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Kamiya T. Role of copper and SOD3-mediated extracellular redox regulation in tumor progression. J Clin Biochem Nutr 2024; 75:1-6. [PMID: 39070539 PMCID: PMC11273271 DOI: 10.3164/jcbn.24-14] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2024] [Accepted: 04/03/2024] [Indexed: 07/30/2024] Open
Abstract
Copper (Cu), an essential micronutrient, participates in several physiological processes, including cell proliferation and development. Notably, the disturbance of Cu homeostasis promotes tumor progression through the generation of oxidative stress. Chronic or excessive accumulation of reactive oxygen species (ROS) causes lipid peroxidation, protein denaturation, and enzyme inactivation, which leads to a breakdown of intracellular homeostasis and exacerbates tumor progression. The disruption of the ROS scavenging mechanism also reduces resistance to oxidative stress, leading to further deterioration in a disease state, and maintenance of redox homeostasis is thought to inhibit the onset and progression of various diseases. Superoxide dismutase 3 (SOD3), a Cu-containing secretory antioxidative enzyme, plays a key role in extracellular redox regulation, and the significant reduction in SOD3 facilitates tumor progression. Furthermore, the significant induction of SOD3 participates in tumor metastasis. This review focuses on the role of Cu homeostasis and antioxidative enzymes, including SOD3, in tumor progression, to help clarify the role of redox regulation.
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Affiliation(s)
- Tetsuro Kamiya
- Laboratory of Clinical Pharmaceutics, Gifu Pharmaceutical University, 1-25-4 Daigaku-nishi, Gifu 501-1196, Japan
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3
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Kunikata H, Tawarayama H, Tsuda S, Akaike T, Nakazawa T. Development of an anti-oxidative intraocular irrigating solution based on reactive persulfides. Sci Rep 2022; 12:19243. [PMID: 36357454 PMCID: PMC9649782 DOI: 10.1038/s41598-022-21677-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Accepted: 09/30/2022] [Indexed: 11/12/2022] Open
Abstract
Anti-oxidative intraocular irrigating solutions (IISs) based on reactive persulfides, such as oxidized glutathione disulfide (GSSG), are commonly used worldwide. However, even with GSSG-based IISs, it has been shown that oxidative stress can occur during surgery, posing a risk to intraocular tissues. This study compared two IISs: one containing GSSG and one containing an oxidized glutathione trisulfide (GSSSG). Experimental in vivo irrigation with the IISs in rabbits showed that there was less leakage into the anterior chamber of rabbit serum albumin during perfusion with a 300-μM GSSSG IIS than with a 300-μM GSSG IIS. Experimental in vivo cataract surgery in rabbits showed that aqueous flare was suppressed 3 days after surgery with a 600-μM GSSSG IIS, but not with a 300-μM GSSSG or 300-μM GSSG IIS. Furthermore, an in vitro experiment, without any live tissue, showed that reactive oxygen species were suppressed more strongly with a 600-μM GSSSG IIS than with a 300-μM GSSG IIS. Thus, this study found that novel IISs based on GSSSG had anti-inflammatory and anti-oxidative effects during and after intraocular surgery and may decrease the rate of complications after surgery.
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Affiliation(s)
- Hiroshi Kunikata
- grid.69566.3a0000 0001 2248 6943Department of Ophthalmology, Tohoku University Graduate School of Medicine, 1-1 Seiryo-machi, Aoba-ku, Sendai, 980-8574 Japan ,grid.69566.3a0000 0001 2248 6943Department of Retinal Disease Control, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Hiroshi Tawarayama
- grid.69566.3a0000 0001 2248 6943Department of Retinal Disease Control, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Satoru Tsuda
- grid.69566.3a0000 0001 2248 6943Department of Ophthalmology, Tohoku University Graduate School of Medicine, 1-1 Seiryo-machi, Aoba-ku, Sendai, 980-8574 Japan
| | - Takaaki Akaike
- grid.69566.3a0000 0001 2248 6943Department of Environmental Health Sciences and Molecular Toxicology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Toru Nakazawa
- grid.69566.3a0000 0001 2248 6943Department of Ophthalmology, Tohoku University Graduate School of Medicine, 1-1 Seiryo-machi, Aoba-ku, Sendai, 980-8574 Japan ,grid.69566.3a0000 0001 2248 6943Department of Retinal Disease Control, Tohoku University Graduate School of Medicine, Sendai, Japan ,grid.69566.3a0000 0001 2248 6943Department of Advanced Ophthalmic Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan ,grid.69566.3a0000 0001 2248 6943Department of Ophthalmic Imaging and Information Analytics, Tohoku University Graduate School of Medicine, Sendai, Japan
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4
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Lundberg JO, Weitzberg E. Nitric oxide signaling in health and disease. Cell 2022; 185:2853-2878. [DOI: 10.1016/j.cell.2022.06.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2022] [Revised: 06/01/2022] [Accepted: 06/06/2022] [Indexed: 10/16/2022]
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5
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Kasuno K, Yodoi J, Iwano M. Urinary Thioredoxin as a Biomarker of Renal Redox Dysregulation and a Companion Diagnostic to Identify Responders to Redox-Modulating Therapeutics. Antioxid Redox Signal 2022; 36:1051-1065. [PMID: 34541903 DOI: 10.1089/ars.2021.0194] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Significance: The development and progression of renal diseases, including acute kidney injury (AKI) and chronic kidney disease (CKD), are the result of heterogeneous pathophysiology that reflects a range of environmental factors and, in a lesser extent, genetic mutations. The pathophysiology specific to most kidney diseases is not currently identified; therefore, these diseases are diagnosed based on non-pathological factors. For that reason, pathophysiology-based companion diagnostics for selection of pathophysiology-targeted treatments have not been available, which impedes personalized medicine in kidney disease. Recent Advances: Pathophysiology-targeted therapeutic agents are now being developed for the treatment of redox dysregulation. Redox modulation therapeutics, including bardoxolone methyl, suppresses the onset and progression of AKI and CKD. On the other hand, pathophysiology-targeted diagnostics for renal redox dysregulation are also being developed. Urinary thioredoxin (TXN) is a biomarker that can be used to diagnose tubular redox dysregulation. AKI causes oxidation and urinary excretion of TXN, which depletes TXN from the tubules, resulting in tubular redox dysregulation. Urinary TXN is selectively elevated at the onset of AKI and correlates with the progression of CKD in diabetic nephropathy. Critical Issues: Diagnostic methods should provide information about molecular mechanisms that aid in the selection of appropriate therapies to improve the prognosis of kidney disease. Future Directions: A specific diagnostic method enabling detection of redox dysregulation based on pathological molecular mechanisms is much needed and could provide the first step toward personalized medicine in kidney disease. Urinary TXN is a candidate for a companion diagnostic method to identify responders to redox-modulating therapeutics. Antioxid. Redox Signal. 36, 1051-1065.
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Affiliation(s)
- Kenji Kasuno
- Department of Nephrology, Faculty of Medical Sciences, University of Fukui, Fukui, Japan.,Life Science Innovation Center, University of Fukui, Fukui, Japan
| | - Junji Yodoi
- Institute for Virus Research, Kyoto University, Kyoto, Japan.,Japan Biostress Research Promotion Alliance (JBPA), Kyoto, Japan
| | - Masayuki Iwano
- Department of Nephrology, Faculty of Medical Sciences, University of Fukui, Fukui, Japan
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6
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Di Fino L, Arruebarrena Di Palma A, Perk EA, García-Mata C, Schopfer FJ, Laxalt AM. Nitro-fatty acids: electrophilic signaling molecules in plant physiology. PLANTA 2021; 254:120. [PMID: 34773515 PMCID: PMC10704571 DOI: 10.1007/s00425-021-03777-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Accepted: 10/30/2021] [Indexed: 06/13/2023]
Abstract
MAIN CONCLUSION Nitro fatty acids (NO2-FA)have relevant physiological roles as signaling molecules in biotic and abiotic stress, growth, and development, but the mechanism of action remains controversial. The two main mechanisms involving nitric oxide release and thiol modification are discussed. Fatty acids (FAs) are major components of membranes and contribute to cellular energetic demands. Besides, FAs are precursors of signaling molecules, including oxylipins and other oxidized fatty acids derived from the activity of lipoxygenases. In addition, non-canonical modified fatty acids, such as nitro-fatty acids (NO2-FAs), are formed in animals and plants. The synthesis NO2-FAs involves a nitration reaction between unsaturated fatty acids and reactive nitrogen species (RNS). This review will focus on recent findings showing that, in plants, NO2-FAs such as nitro-linolenic acid (NO2-Ln) and nitro-oleic acid (NO2-OA) have relevant physiological roles as signaling molecules in biotic and abiotic stress, growth, and development. Moreover, since there is controversy on mechanisms of action of NO2-FAs as signaling molecules, we will provide evidence showing why this aspect needs further evaluation.
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Affiliation(s)
- Luciano Di Fino
- Instituto de Investigaciones Biológicas, CONICET-Universidad Nacional de Mar del Plata, Mar del Plata, Argentina
| | - Andrés Arruebarrena Di Palma
- Instituto de Investigaciones Biológicas, CONICET-Universidad Nacional de Mar del Plata, Mar del Plata, Argentina
| | - Enzo A Perk
- Instituto de Investigaciones Biológicas, CONICET-Universidad Nacional de Mar del Plata, Mar del Plata, Argentina
| | - Carlos García-Mata
- Instituto de Investigaciones Biológicas, CONICET-Universidad Nacional de Mar del Plata, Mar del Plata, Argentina
| | - Francisco J Schopfer
- Department of Pharmacology and Chemical Biology, University of Pittsburgh, Pittsburgh, PA, USA
| | - Ana M Laxalt
- Instituto de Investigaciones Biológicas, CONICET-Universidad Nacional de Mar del Plata, Mar del Plata, Argentina.
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7
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Shinohara Y, Washio J, Kobayashi Y, Abiko Y, Sasaki K, Takahashi N. Hypoxically cultured cells of oral squamous cell carcinoma increased their glucose metabolic activity under normoxic conditions. PLoS One 2021; 16:e0254966. [PMID: 34679081 PMCID: PMC8535375 DOI: 10.1371/journal.pone.0254966] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Accepted: 07/07/2021] [Indexed: 12/24/2022] Open
Abstract
Objective The oxygen concentration within cancer tissue is known to be low, but is expected to increase rapidly when oxygen is supplied by angiogenesis and hematogenous metastasis, suggesting that rapid increases in oxygen levels might influence cancer cell physiology. Therefore, we investigated the effects of oxygen concentration fluctuations on the glucose metabolism of cancer cells. Methods The glucose metabolism of oral squamous cell carcinoma (HSC-2 and HSC-3) and normal epithelial (HaCaT) cells cultured under normoxic (21% oxygen) or hypoxic (1% oxygen) conditions was measured using a pH-stat system under normoxic or hypoxic conditions. The acidic end-products and reactive oxygen species (ROS) generated by glucose metabolism were also measured. Results Under normoxic conditions, the metabolic activity of hypoxically cultured cancer cells was significantly increased, and the production of acids other than lactate was upregulated, while the normal cells did not respond to rapid increases in oxygen levels. ROS production was higher in normoxic conditions in all cells, especially the hypoxically cultured HSC-3 cells. Conclusions Rapid increases in oxygen levels might enhance the glucose metabolism of hypoxically cultured cancer cells by mainly activating the TCA cycle and electron transport system, which might activate cancer cells through the ATP and ROS generation.
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Affiliation(s)
- Yuta Shinohara
- Division of Oral Ecology and Biochemistry, Tohoku University Graduate School of Dentistry, Sendai, Japan
- Division of Advanced Prosthetic Dentistry, Tohoku University Graduate School of Dentistry, Sendai, Japan
| | - Jumpei Washio
- Division of Oral Ecology and Biochemistry, Tohoku University Graduate School of Dentistry, Sendai, Japan
| | - Yuri Kobayashi
- Division of Oral Ecology and Biochemistry, Tohoku University Graduate School of Dentistry, Sendai, Japan
| | - Yuki Abiko
- Division of Oral Ecology and Biochemistry, Tohoku University Graduate School of Dentistry, Sendai, Japan
| | - Keiichi Sasaki
- Division of Advanced Prosthetic Dentistry, Tohoku University Graduate School of Dentistry, Sendai, Japan
| | - Nobuhiro Takahashi
- Division of Oral Ecology and Biochemistry, Tohoku University Graduate School of Dentistry, Sendai, Japan
- * E-mail:
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8
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Yang CT, Devarie-Baez NO, Hamsath A, Fu XD, Xian M. S-Persulfidation: Chemistry, Chemical Biology, and Significance in Health and Disease. Antioxid Redox Signal 2020; 33:1092-1114. [PMID: 31547682 PMCID: PMC7583347 DOI: 10.1089/ars.2019.7889] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Significance: S-Persulfidation generates persulfide adducts (RSSH) on both small molecules and proteins. This process is believed to be critical in the regulation of biological functions of reactive sulfur species such as H2S, as well as in signal transduction. S-Persulfidation also plays regulatory roles in human health and diseases. Recent Advances: Some mechanisms underlying the generation of low-molecular-weight persulfides and protein S-persulfidation in living organisms have been uncovered. Some methods for the specific delivery of persulfides and the detection of persulfides in biological systems have been developed. These advances help to pave the road to better understand the functions of S-persulfidation. Critical Issues: Persulfides are highly reactive and unstable. Currently, their identification relies on trapping them by S-alkylation, but this is not always reliable due to rapid sulfur exchange reactions. Therefore, the presence, identity, and fates of persulfides in biological environments are sometimes difficult to track. Future Directions: Further understanding the fundamental chemistry/biochemistry of persulfides and development of more reliable detection methods are needed. S-Persulfidation in specific protein targets is essential in organismal physiological health and human disease states. Besides cardiovascular and neuronal systems, the roles of persulfidation in other systems need to be further explored. Contradictory results of persulfidation in biology, especially in cancer, need to be clarified.
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Affiliation(s)
- Chun-Tao Yang
- Affiliated Cancer Hospital & Institute of Guangzhou Medical University, Protein Modification and Degradation Key Lab of Guangzhou and Guangdong, Key Laboratory of Molecular Clinical Pharmacology in School of Pharmaceutics Science, Guangzhou Medical University, Guangzhou, China.,Department of Chemistry, Washington State University, Pullman, Washington, USA
| | - Nelmi O Devarie-Baez
- Department of Chemistry, Washington State University-Tri Cities, Richland, Washington, USA
| | - Akil Hamsath
- Department of Chemistry, Washington State University, Pullman, Washington, USA
| | - Xiao-Dong Fu
- Affiliated Cancer Hospital & Institute of Guangzhou Medical University, Protein Modification and Degradation Key Lab of Guangzhou and Guangdong, Key Laboratory of Molecular Clinical Pharmacology in School of Pharmaceutics Science, Guangzhou Medical University, Guangzhou, China
| | - Ming Xian
- Department of Chemistry, Washington State University, Pullman, Washington, USA
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9
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Petřivalský M, Luhová L. Nitrated Nucleotides: New Players in Signaling Pathways of Reactive Nitrogen and Oxygen Species in Plants. FRONTIERS IN PLANT SCIENCE 2020; 11:598. [PMID: 32508862 PMCID: PMC7248558 DOI: 10.3389/fpls.2020.00598] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2020] [Accepted: 04/20/2020] [Indexed: 05/03/2023]
Abstract
Nitration of diverse biomolecules, including proteins, lipids and nucleic acid, by reactive nitrogen species represents one of the key mechanisms mediating nitric oxide (NO) biological activity across all types of organisms. 8-nitroguanosine 3'5'-cyclic monophosphate (8-nitro-cGMP) has been described as a unique electrophilic intermediate involved in intracellular redox signaling. In animal cells, 8-nitro-cGMP is formed from guanosine-5'-triphosphate by a combined action of reactive nitrogen (RNS) and oxygen species (ROS) and guanylate cyclase. As demonstrated originally in animal models, 8-nitro-cGMP shows certain biological activities closely resembling its analog cGMP; however, its regulatory functions are mediated mainly by its electrophilic properties and chemical interactions with protein thiols resulting in a novel protein post-translational modification termed S-guanylation. In Arabidopsis thaliana, 8-nitro-cGMP was reported to mediate NO-dependent signaling pathways controlling abscisic acid (ABA)-induced stomatal closure, however, its derivative 8-mercapto-cGMP (8-SH-cGMP) was later shown as the active component of hydrogen sulfide (H2S)-mediated guard cell signaling. Here we present a survey of current knowledge on biosynthesis, metabolism and biological activities of nitrated nucleotides with special attention to described and proposed functions of 8-nitro-cGMP and its metabolites in plant physiology and stress responses.
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10
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Schopfer FJ, Khoo NKH. Nitro-Fatty Acid Logistics: Formation, Biodistribution, Signaling, and Pharmacology. Trends Endocrinol Metab 2019; 30:505-519. [PMID: 31196614 PMCID: PMC7121905 DOI: 10.1016/j.tem.2019.04.009] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/27/2019] [Revised: 04/25/2019] [Accepted: 04/25/2019] [Indexed: 02/04/2023]
Abstract
In addition to supporting cellular energetic demands and providing building blocks for lipid synthesis, fatty acids (FAs) are precursors of potent signaling molecules. In particular, the presence of conjugated double bonds on the fatty-acyl chain provides a preferential target for nitration generating nitro-FAs (NO2-FAs). The formation of NO2-FAs is a nonenzymatic process that requires reactive nitrogen species and occurs locally at the site of inflammation or during gastric acidification. NO2-FAs are electrophilic and display pleiotropic signaling actions through reversible protein alkylation. This review focuses on the endogenously formed NO2-FAs' mechanism of absorption, systemic distribution, signaling, and preclinical models. Understanding the dynamics of these processes will facilitate targeted dietary interventions and further the current pharmacological development aimed at low-grade inflammatory diseases.
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Affiliation(s)
- Francisco J Schopfer
- Department of Pharmacology and Chemical Biology, University of Pittsburgh, Pittsburgh, PA, 15213, USA.
| | - Nicholas K H Khoo
- Department of Pharmacology and Chemical Biology, University of Pittsburgh, Pittsburgh, PA, 15213, USA.
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11
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Abstract
The concept of cell signaling in the context of nonenzyme-assisted protein modifications by reactive electrophilic and oxidative species, broadly known as redox signaling, is a uniquely complex topic that has been approached from numerous different and multidisciplinary angles. Our Review reflects on five aspects critical for understanding how nature harnesses these noncanonical post-translational modifications to coordinate distinct cellular activities: (1) specific players and their generation, (2) physicochemical properties, (3) mechanisms of action, (4) methods of interrogation, and (5) functional roles in health and disease. Emphasis is primarily placed on the latest progress in the field, but several aspects of classical work likely forgotten/lost are also recollected. For researchers with interests in getting into the field, our Review is anticipated to function as a primer. For the expert, we aim to stimulate thought and discussion about fundamentals of redox signaling mechanisms and nuances of specificity/selectivity and timing in this sophisticated yet fascinating arena at the crossroads of chemistry and biology.
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Affiliation(s)
- Saba Parvez
- Department of Pharmacology and Toxicology, College of
Pharmacy, University of Utah, Salt Lake City, Utah, 84112, USA
- Department of Chemistry and Chemical Biology, Cornell
University, Ithaca, New York, 14853, USA
| | - Marcus J. C. Long
- Department of Chemistry and Chemical Biology, Cornell
University, Ithaca, New York, 14853, USA
| | - Jesse R. Poganik
- Ecole Polytechnique Fédérale de Lausanne,
Institute of Chemical Sciences and Engineering, 1015, Lausanne, Switzerland
- Department of Chemistry and Chemical Biology, Cornell
University, Ithaca, New York, 14853, USA
| | - Yimon Aye
- Ecole Polytechnique Fédérale de Lausanne,
Institute of Chemical Sciences and Engineering, 1015, Lausanne, Switzerland
- Department of Chemistry and Chemical Biology, Cornell
University, Ithaca, New York, 14853, USA
- Department of Biochemistry, Weill Cornell Medicine, New
York, New York, 10065, USA
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12
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Khan S, Fujii S, Matsunaga T, Nishimura A, Ono K, Ida T, Ahmed KA, Okamoto T, Tsutsuki H, Sawa T, Akaike T. Reactive Persulfides from Salmonella Typhimurium Downregulate Autophagy-Mediated Innate Immunity in Macrophages by Inhibiting Electrophilic Signaling. Cell Chem Biol 2018; 25:1403-1413.e4. [PMID: 30197193 DOI: 10.1016/j.chembiol.2018.08.007] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2018] [Revised: 05/29/2018] [Accepted: 08/07/2018] [Indexed: 12/17/2022]
Abstract
Reactive persulfides such as cysteine persulfide and glutathione persulfide are produced by bacteria including Salmonella during sulfur metabolism. The biological significance of bacterial reactive persulfides in host-pathogen interactions still warrants investigation. We found that reactive persulfides produced by Salmonella Typhimurium LT2 regulate macrophage autophagy via metabolizing 8-nitroguanosine 3',5'-cyclic monophosphate (8-nitro-cGMP), an electrophilic product of reactive oxygen species and nitric oxide signaling. 8-Nitro-cGMP signaling was required for efficient autophagy-mediated clearance of Salmonella from infected macrophages. In the infected cells, 8-nitro-cGMP caused cGMP adduct formation (S-guanylation) of bacterial surface proteins, which triggered recruitment of autophagy-related proteins p62 and LC3-II to the intracellular bacteria. We also found that Salmonella-produced reactive persulfides downregulated this autophagy by decreasing cellular 8-nitro-cGMP content, thereby inhibiting electrophilic signaling. These data reveal a pathogenic role of bacteria-derived reactive persulfides via suppression of anti-bacterial autophagy.
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Affiliation(s)
- Shahzada Khan
- Gladstone Institute of Virology and Immunology, University of California, San Francisco, CA 94158, USA
| | - Shigemoto Fujii
- Department of Environmental Medicine and Molecular Toxicology, Tohoku University Graduate School of Medicine, 2-1 Seiryo-machi, Aoba-ku, Sendai 980-8575, Japan
| | - Tetsuro Matsunaga
- Department of Environmental Medicine and Molecular Toxicology, Tohoku University Graduate School of Medicine, 2-1 Seiryo-machi, Aoba-ku, Sendai 980-8575, Japan
| | - Akira Nishimura
- Department of Environmental Medicine and Molecular Toxicology, Tohoku University Graduate School of Medicine, 2-1 Seiryo-machi, Aoba-ku, Sendai 980-8575, Japan
| | - Katsuhiko Ono
- Department of Microbiology, Graduate School of Medical Sciences, Kumamoto University, 1-1-1 Honjo, Chuo-ku, Kumamoto 860-8556, Japan
| | - Tomoaki Ida
- Department of Environmental Medicine and Molecular Toxicology, Tohoku University Graduate School of Medicine, 2-1 Seiryo-machi, Aoba-ku, Sendai 980-8575, Japan
| | - Khandaker Ahtesham Ahmed
- Department of Microbiology, Graduate School of Medical Sciences, Kumamoto University, 1-1-1 Honjo, Chuo-ku, Kumamoto 860-8556, Japan
| | - Tatsuya Okamoto
- Intensive Care Unit, National Center for Global Health and Medicine, 1-21-1 Toyama, Shinjuku-ku, Tokyo 162-8655, Japan
| | - Hiroyasu Tsutsuki
- Department of Microbiology, Graduate School of Medical Sciences, Kumamoto University, 1-1-1 Honjo, Chuo-ku, Kumamoto 860-8556, Japan
| | - Tomohiro Sawa
- Department of Microbiology, Graduate School of Medical Sciences, Kumamoto University, 1-1-1 Honjo, Chuo-ku, Kumamoto 860-8556, Japan
| | - Takaaki Akaike
- Department of Environmental Medicine and Molecular Toxicology, Tohoku University Graduate School of Medicine, 2-1 Seiryo-machi, Aoba-ku, Sendai 980-8575, Japan.
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13
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Kaneko K, Miyamoto Y, Tsukuura R, Sasa K, Akaike T, Fujii S, Yoshimura K, Nagayama K, Hoshino M, Inoue S, Maki K, Baba K, Chikazu D, Kamijo R. 8-Nitro-cGMP is a promoter of osteoclast differentiation induced by RANKL. Nitric Oxide 2017; 72:46-51. [PMID: 29183803 DOI: 10.1016/j.niox.2017.11.006] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2017] [Revised: 11/07/2017] [Accepted: 11/17/2017] [Indexed: 10/18/2022]
Abstract
Osteoclasts are multinucleated giant cells differentiated from monocyte-macrophage-lineage cells under stimulation of receptor activator of nuclear factor κ-B (RANK) ligand (RANKL) produced by osteoblasts and osteocytes. Although it has been reported that nitric oxide (NO) and reactive oxygen species (ROS) are involved in this process, the mechanism by which these labile molecules promote osteoclast differentiation are not fully understood. In this study, we investigated the formation and function of 8-nitro-cGMP, a downstream molecule of NO and ROS, in the process of osteoclast differentiation in vitro. 8-Nitro-cGMP was detected in mouse bone marrow macrophages and osteoclasts differentiated from macrophages in the presence of RANKL. Inhibition of NO synthase suppressed the formation of 8-nitro-cGMP as well as RANKL-induced osteoclast differentiation from macrophages. On the other hand, RANKL-induced osteoclast differentiation was promoted by addition of 8-nitro-cGMP to the cultures. In addition, 8-nitro-cGMP enhanced the mRNA expression of RANK, the receptor for RANKL. However, 8-bromo-cGMP, a membrane-permeable derivative of cGMP, did not have an effect on either RANKL-induced osteoclast differentiation or expression of the RANK gene. These results suggest that 8-nitro-cGMP is a novel positive regulator of osteoclast differentiation, which might help to explain the roles of NO and ROS in osteoclast differentiation.
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Affiliation(s)
- K Kaneko
- Department of Biochemistry, Showa University School of Dentistry, Japan; Department of Oral and Maxillofacial Surgery, Tokyo Medical University, Japan
| | - Y Miyamoto
- Department of Biochemistry, Showa University School of Dentistry, Japan.
| | - R Tsukuura
- Department of Biochemistry, Showa University School of Dentistry, Japan; Department of Oral and Maxillofacial Surgery, Tokyo Medical University, Japan
| | - K Sasa
- Department of Biochemistry, Showa University School of Dentistry, Japan
| | - T Akaike
- Department of Environmental Health Sciences and Molecular Toxicology, Tohoku University Graduate School of Medicine, Japan
| | - S Fujii
- Department of Environmental Health Sciences and Molecular Toxicology, Tohoku University Graduate School of Medicine, Japan
| | - K Yoshimura
- Department of Biochemistry, Showa University School of Dentistry, Japan
| | - K Nagayama
- Department of Biochemistry, Showa University School of Dentistry, Japan; Department of Orthodontics, Showa University School of Dentistry, Japan
| | - M Hoshino
- Department of Prosthodontics, Showa University School of Dentistry, Japan
| | - S Inoue
- Department of Prosthodontics, Showa University School of Dentistry, Japan
| | - K Maki
- Department of Orthodontics, Showa University School of Dentistry, Japan
| | - K Baba
- Department of Prosthodontics, Showa University School of Dentistry, Japan
| | - D Chikazu
- Department of Oral and Maxillofacial Surgery, Tokyo Medical University, Japan
| | - R Kamijo
- Department of Biochemistry, Showa University School of Dentistry, Japan
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14
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Ihara H, Kasamatsu S, Kitamura A, Nishimura A, Tsutsuki H, Ida T, Ishizaki K, Toyama T, Yoshida E, Abdul Hamid H, Jung M, Matsunaga T, Fujii S, Sawa T, Nishida M, Kumagai Y, Akaike T. Exposure to Electrophiles Impairs Reactive Persulfide-Dependent Redox Signaling in Neuronal Cells. Chem Res Toxicol 2017; 30:1673-1684. [PMID: 28837763 DOI: 10.1021/acs.chemrestox.7b00120] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Electrophiles such as methylmercury (MeHg) affect cellular functions by covalent modification with endogenous thiols. Reactive persulfide species were recently reported to mediate antioxidant responses and redox signaling because of their strong nucleophilicity. In this study, we used MeHg as an environmental electrophile and found that exposure of cells to the exogenous electrophile elevated intracellular concentrations of the endogenous electrophilic molecule 8-nitroguanosine 3',5'-cyclic monophosphate (8-nitro-cGMP), accompanied by depletion of reactive persulfide species and 8-SH-cGMP which is a metabolite of 8-nitro-cGMP. Exposure to MeHg also induced S-guanylation and activation of H-Ras followed by injury to cerebellar granule neurons. The electrophile-induced activation of redox signaling and the consequent cell damage were attenuated by pretreatment with a reactive persulfide species donor. In conclusion, exogenous electrophiles such as MeHg with strong electrophilicity impair the redox signaling regulatory mechanism, particularly of intracellular reactive persulfide species and therefore lead to cellular pathogenesis. Our results suggest that reactive persulfide species may be potential therapeutic targets for attenuating cell injury by electrophiles.
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Affiliation(s)
- Hideshi Ihara
- Department of Biological Science, Graduate School of Science, Osaka Prefecture University , Osaka 599-8531, Japan
| | - Shingo Kasamatsu
- Department of Biological Science, Graduate School of Science, Osaka Prefecture University , Osaka 599-8531, Japan.,Department of Environmental Health Sciences and Molecular Toxicology, Tohoku University Graduate School of Medicine , Sendai 980-8575, Japan
| | - Atsushi Kitamura
- Department of Biological Science, Graduate School of Science, Osaka Prefecture University , Osaka 599-8531, Japan
| | - Akira Nishimura
- Department of Environmental Health Sciences and Molecular Toxicology, Tohoku University Graduate School of Medicine , Sendai 980-8575, Japan
| | - Hiroyasu Tsutsuki
- Department of Microbiology, Graduate School of Medical Sciences, Kumamoto University , Kumamoto 860-8556, Japan
| | - Tomoaki Ida
- Department of Environmental Health Sciences and Molecular Toxicology, Tohoku University Graduate School of Medicine , Sendai 980-8575, Japan
| | - Kento Ishizaki
- Department of Biological Science, Graduate School of Science, Osaka Prefecture University , Osaka 599-8531, Japan
| | - Takashi Toyama
- Environmental Biology Section, Faculty of Medicine, University of Tsukuba , Tsukuba, Ibaraki 305-8575, Japan
| | - Eiko Yoshida
- Environmental Biology Section, Faculty of Medicine, University of Tsukuba , Tsukuba, Ibaraki 305-8575, Japan
| | - Hisyam Abdul Hamid
- Department of Environmental Health Sciences and Molecular Toxicology, Tohoku University Graduate School of Medicine , Sendai 980-8575, Japan.,Department of Pharmaceutical Pharmacology and Chemistry, Faculty of Pharmacy, Universiti Teknologi MARA Puncak Alam Campus , 42300 Puncak Alam, Selangor, Malaysia
| | - Minkyung Jung
- Department of Environmental Health Sciences and Molecular Toxicology, Tohoku University Graduate School of Medicine , Sendai 980-8575, Japan
| | - Tetsuro Matsunaga
- Department of Environmental Health Sciences and Molecular Toxicology, Tohoku University Graduate School of Medicine , Sendai 980-8575, Japan
| | - Shigemoto Fujii
- Department of Environmental Health Sciences and Molecular Toxicology, Tohoku University Graduate School of Medicine , Sendai 980-8575, Japan
| | - Tomohiro Sawa
- Department of Microbiology, Graduate School of Medical Sciences, Kumamoto University , Kumamoto 860-8556, Japan
| | - Motohiro Nishida
- Division of Cardiocirculatory Signaling, National Institute for Physiological Sciences (Okazaki Institute for Integrative Bioscience), National Institutes of Natural Sciences , Aichi 444-8787, Japan
| | - Yoshito Kumagai
- Environmental Biology Section, Faculty of Medicine, University of Tsukuba , Tsukuba, Ibaraki 305-8575, Japan
| | - Takaaki Akaike
- Department of Environmental Health Sciences and Molecular Toxicology, Tohoku University Graduate School of Medicine , Sendai 980-8575, Japan
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15
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Hoshino M, Kaneko K, Miyamoto Y, Yoshimura K, Suzuki D, Akaike T, Sawa T, Ida T, Fujii S, Ihara H, Tanaka J, Tsukuura R, Chikazu D, Mishima K, Baba K, Kamijo R. 8-Nitro-cGMP promotes bone growth through expansion of growth plate cartilage. Free Radic Biol Med 2017; 110:63-71. [PMID: 28559051 DOI: 10.1016/j.freeradbiomed.2017.05.022] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/04/2017] [Revised: 05/06/2017] [Accepted: 05/25/2017] [Indexed: 01/29/2023]
Abstract
In endochondral ossification, growth of bones occurs at their growth plate cartilage. While it is known that nitric oxide (NO) synthases are required for proliferation of chondrocytes in growth plate cartilage and growth of bones, the precise mechanism by which NO facilitates these process has not been clarified yet. C-type natriuretic peptide (CNP) also positively regulate elongation of bones through expansion of the growth plate cartilage. Both NO and CNP are known to use cGMP as the second messenger. Recently, 8-nitro-cGMP was identified as a signaling molecule produced in the presence of NO in various types of cells. Here, we found that 8-nitro-cGMP is produced in proliferating chondrocytes in the growth plates, which was enhanced by CNP, in bones cultured ex vivo. In addition, 8-nitro-cGMP promoted bone growth with expansion of the proliferating zone as well as increase in the number of proliferating cells in the growth plates. 8-Nitro-cGMP also promoted the proliferation of chondrocytes in vitro. On the other hand, 8-bromo-cGMP enhanced the growth of bones with expansion of hypertrophic zone of the growth plates without affecting either the width of proliferating zone or proliferation of chondrocytes. These results indicate that 8-nitro-cGMP formed in growth plate cartilage accelerates chondrocyte proliferation and bone growth as a downstream molecule of NO.
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Affiliation(s)
- Marie Hoshino
- Department of Biochemistry, Showa University School of Dentistry, Tokyo, Japan; Department of Prosthodontics, Showa University School of Dentistry, Tokyo, Japan
| | - Kotaro Kaneko
- Department of Biochemistry, Showa University School of Dentistry, Tokyo, Japan; Department of Oral and Maxillofacial Surgery, Tokyo Medical University, Tokyo, Japan
| | - Yoichi Miyamoto
- Department of Biochemistry, Showa University School of Dentistry, Tokyo, Japan.
| | - Kentaro Yoshimura
- Department of Biochemistry, Showa University School of Dentistry, Tokyo, Japan
| | - Dai Suzuki
- Department of Biochemistry, Showa University School of Dentistry, Tokyo, Japan
| | - Takaaki Akaike
- Department of Environmental Health Sciences and Molecular Toxicology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Tomohiro Sawa
- Department of Microbiology, Graduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan
| | - Tomoaki Ida
- Department of Environmental Health Sciences and Molecular Toxicology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Shigemoto Fujii
- Department of Environmental Health Sciences and Molecular Toxicology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Hideshi Ihara
- Department of Biological Science, Graduate School of Science, Osaka Prefecture University, Sakai, Japan
| | - Junichi Tanaka
- Division of Pathology, Department of Oral Diagnostic Sciences, Showa University School of Dentistry, Tokyo, Japan
| | - Risa Tsukuura
- Department of Biochemistry, Showa University School of Dentistry, Tokyo, Japan; Department of Oral and Maxillofacial Surgery, Tokyo Medical University, Tokyo, Japan
| | - Daichi Chikazu
- Department of Oral and Maxillofacial Surgery, Tokyo Medical University, Tokyo, Japan
| | - Kenji Mishima
- Division of Pathology, Department of Oral Diagnostic Sciences, Showa University School of Dentistry, Tokyo, Japan
| | - Kazuyoshi Baba
- Department of Prosthodontics, Showa University School of Dentistry, Tokyo, Japan
| | - Ryutaro Kamijo
- Department of Biochemistry, Showa University School of Dentistry, Tokyo, Japan
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16
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Nishida M, Nishimura A, Matsunaga T, Motohashi H, Kasamatsu S, Akaike T. Redox regulation of electrophilic signaling by reactive persulfides in cardiac cells. Free Radic Biol Med 2017; 109:132-140. [PMID: 28109891 DOI: 10.1016/j.freeradbiomed.2017.01.024] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/29/2016] [Revised: 01/14/2017] [Accepted: 01/15/2017] [Indexed: 12/30/2022]
Abstract
Maintaining a redox balance by means of precisely controlled systems that regulate production, and elimination, and metabolism of electrophilic substances (electrophiles) is essential for normal cardiovascular function. Electrophilic signaling is mainly regulated by endogenous electrophiles that are generated from reactive oxygen species, nitric oxide, and the derivative reactive species of nitric oxide during stress responses, as well as by exogenous electrophiles including compounds in foods and environmental pollutants. Among electrophiles formed endogenously, 8-nitroguanosine 3',5'-cyclic monophosphate (8-nitro-cGMP) has unique cell signaling functions, and pathways for its biosynthesis, signaling mechanism, and metabolism in cells have been clarified. Reactive persulfide species such as cysteine persulfides and polysulfides that are endogenously produced in cells are likely to be involved in 8-nitro-cGMP metabolism. These new aspects of redox biology may stimulate innovative and multidisciplinary research in cardiovascular physiology and pathophysiology. In our review, we focus on the redox-dependent regulation of electrophilic signaling via reduction and metabolism of electrophiles by reactive persulfides in cardiac cells, and we include suggestions for a new therapeutic strategy for cardiovascular disease.
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Affiliation(s)
- Motohiro Nishida
- Division of Cardiocirculatory Signaling, Okazaki Institute for Integrative Bioscience (National Institute for Physiological Sciences), National Institutes of Natural Sciences, Okazaki 444-8787, Japan; Department of Physiological Sciences, SOKENDAI (School of Life Science, The Graduate University for Advanced Studies), Okazaki 444-8787, Japan; Department of Translational Pharmaceutical Sciences, Graduate School of Pharmaceutical Sciences, Kyushu University, Fukuoka 812-8582, Japan; PRESTO, Japan Science and Technology Agency (JST), Kawaguchi 332-0012, Japan.
| | - Akiyuki Nishimura
- Division of Cardiocirculatory Signaling, Okazaki Institute for Integrative Bioscience (National Institute for Physiological Sciences), National Institutes of Natural Sciences, Okazaki 444-8787, Japan; Department of Physiological Sciences, SOKENDAI (School of Life Science, The Graduate University for Advanced Studies), Okazaki 444-8787, Japan
| | - Tetsuro Matsunaga
- Department of Environmental Health Sciences and Molecular Toxicology, Tohoku University Graduate School of Medicine, Sendai 980-8575, Japan
| | - Hozumi Motohashi
- Department of Gene Expression Regulation, Institute of Development, Aging and Cancer, Tohoku University, Sendai 980-8575, Japan
| | - Shingo Kasamatsu
- Department of Environmental Health Sciences and Molecular Toxicology, Tohoku University Graduate School of Medicine, Sendai 980-8575, Japan
| | - Takaaki Akaike
- Department of Environmental Health Sciences and Molecular Toxicology, Tohoku University Graduate School of Medicine, Sendai 980-8575, Japan.
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17
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Kunikata H, Ida T, Sato K, Aizawa N, Sawa T, Tawarayama H, Murayama N, Fujii S, Akaike T, Nakazawa T. Metabolomic profiling of reactive persulfides and polysulfides in the aqueous and vitreous humors. Sci Rep 2017; 7:41984. [PMID: 28169324 PMCID: PMC5294455 DOI: 10.1038/srep41984] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2016] [Accepted: 01/04/2017] [Indexed: 01/07/2023] Open
Abstract
We investigate the metabolomic profile of reactive persulfides and polysulfides in the aqueous and vitreous humors. Eighteen eyes of 18 consecutive patients with diabetes mellitus (DM) and diabetic retinopathy underwent microincision vitrectomy combined with cataract surgery. Samples of the aqueous and vitreous humors were collected and underwent mass spectrometry-based metabolomic profiling of reactive persulfides and polysulfides (polysulfidomics). The effect of reactive polysulfide species on the viability of immortalized retinal cells (the RGC-5 cell line) under oxidative stress (induced with H2O2) was also evaluated with an Alamar Blue assay. The experiments showed that cysteine persulfides (CysSSH), oxidized glutathione trisulfide (GSSSG) and cystine were elevated in the aqueous humor, and CysSSH, Cys, and cystine were elevated in the vitreous. Furthermore, GSSSG, cystine, and CysSSH levels were correlated in the aqueous and vitreous humors. A comparison, in DM and control subjects, of plasma levels of reactive persulfides and polysulfides showed that they did not differ. In vitro findings revealed that reactive polysulfide species increased cell viability under oxidative stress. Thus, various reactive persulfides and polysulfides appear to be present in the eye, and some reactive sulfide species, which have a protective effect against oxidative stress, are upregulated in the aqueous and vitreous humors of DM eyes.
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Affiliation(s)
- Hiroshi Kunikata
- Department of Ophthalmology, Tohoku University Graduate School of Medicine, Sendai, Japan.,Department of Retinal Disease Control, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Tomoaki Ida
- Department of Environmental Health Sciences and Molecular Toxicology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Kota Sato
- Department of Ophthalmology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Naoko Aizawa
- Department of Ophthalmology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Tomohiro Sawa
- Department of Microbiology, Graduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan
| | - Hiroshi Tawarayama
- Department of Retinal Disease Control, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Namie Murayama
- Department of Ophthalmology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Shigemoto Fujii
- Department of Environmental Health Sciences and Molecular Toxicology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Takaaki Akaike
- Department of Environmental Health Sciences and Molecular Toxicology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Toru Nakazawa
- Department of Ophthalmology, Tohoku University Graduate School of Medicine, Sendai, Japan.,Department of Retinal Disease Control, Tohoku University Graduate School of Medicine, Sendai, Japan.,Department of Advanced Ophthalmic Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan.,Department of Ophthalmic Imaging and Information Analytics, Tohoku University Graduate School of Medicine, Sendai, Japan
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18
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Jiang L, Si ZH, Li MH, Zhao H, Fu YH, Xing YX, Hong W, Ruan LY, Li PM, Wang JS. 1H NMR-based metabolomics study of liver damage induced by ginkgolic acid (15:1) in mice. J Pharm Biomed Anal 2016; 136:44-54. [PMID: 28063335 DOI: 10.1016/j.jpba.2016.12.033] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2016] [Revised: 12/20/2016] [Accepted: 12/24/2016] [Indexed: 11/28/2022]
Abstract
Ginkgolic acid (15:1) is a major toxic component in extracts obtained from Ginkgo biloba (EGb) that has allergic and genotoxic effects. This study is the first to explore the hepatotoxicity of ginkgolic acid (15:1) using a NMR (nuclear magnetic resonance)-based metabolomics approach in combination with biochemistry assays. Mice were orally administered two doses of ginkgolic acid (15:1), and mouse livers and serum were then collected for NMR recordings and biochemical assays. The levels of activity of alanine aminotransferase (ALT) and glutamic aspartate transaminase (AST) observed in the ginkgolic acid (15:1)-treated mice suggested that it had induced severe liver damage. An orthogonal signal correction partial least-squares discriminant analysis (OSC-PLSDA) performed to determine the metabolomic profile of mouse liver tissues indicated that many metabolic disturbances, especially oxidative stress and purine metabolism, were induced by ginkgolic acid (15:1). A correlation network analysis combined with information related to structural similarities further confirmed that purine metabolism was disturbed by ginkgolic acid (15:1). This mechanism might represent the link between the antitumour activity and the liver injury-inducing effect of ginkgolic acid (15:1). A SUS (Shared and Unique Structure) plot suggested that a two-dose treatment of ginkgolic acid (15:1) had generally the same effect on metabolic variations but that its effects were dose-dependent, revealing some of the common features of ginkgolic acid (15:1) dosing. This integrated metabolomics approach helped us to characterise ginkgolic acid (15:1)-induced liver damage in mice.
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Affiliation(s)
- Lei Jiang
- Centre for Molecular Metabolism, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, 200 Xiaolingwei Street, Nanjing 210094, PR China
| | - Zhi-Hong Si
- Centre for Molecular Metabolism, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, 200 Xiaolingwei Street, Nanjing 210094, PR China
| | - Ming-Hui Li
- Centre for Molecular Metabolism, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, 200 Xiaolingwei Street, Nanjing 210094, PR China
| | - He Zhao
- Centre for Molecular Metabolism, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, 200 Xiaolingwei Street, Nanjing 210094, PR China
| | - Yong-Hong Fu
- Centre for Molecular Metabolism, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, 200 Xiaolingwei Street, Nanjing 210094, PR China
| | - Yue-Xiao Xing
- Centre for Molecular Metabolism, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, 200 Xiaolingwei Street, Nanjing 210094, PR China
| | - Wei Hong
- Centre for Molecular Metabolism, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, 200 Xiaolingwei Street, Nanjing 210094, PR China
| | - Ling-Yu Ruan
- Centre for Molecular Metabolism, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, 200 Xiaolingwei Street, Nanjing 210094, PR China
| | - Pu-Min Li
- Centre for Molecular Metabolism, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, 200 Xiaolingwei Street, Nanjing 210094, PR China
| | - Jun-Song Wang
- Centre for Molecular Metabolism, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, 200 Xiaolingwei Street, Nanjing 210094, PR China.
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19
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Akaike T. [Host defense and oxidative stress signaling in bacterial infection
]. Nihon Saikingaku Zasshi 2016; 70:339-49. [PMID: 26310178 DOI: 10.3412/jsb.70.339] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Nitric oxide (NO) and reactive oxygen species (ROS) produced during infection are involved critically in host defense mechanisms. It is quite important to physiologically regulate ROS, such as superoxide, and NO. These reactive species produced in excess may cause oxidative damage of biological molecules. An important cytoprotective and antimicrobial function of NO and ROS is mediated by induction of heme oxygenase (HO)-1. The signaling mechanism of this HO-1 induction has remained unclear, however. We discovered in 2007 a unique second messenger, 8-nitroguanosine 3',5'-cyclic monophosphate (8-nitro-cGMP), that mediates electrophilic signal transduction during oxidative stress and other cellular redox signaling in general. 8-Nitro-cGMP is formed via guanine nitration with NO and ROS, and in fact, NO-dependent 8-nitro-cGMP formation and HO-1 induction were identified in Salmonella-infected mice. HO-1 induction was regulated solely by 8-nitro-cGMP formed in cells, and more important, its potent anti-apoptotic function was evident in such a Salmonella infection. 8-Nitro-cGMP has a potent cytoprotective function, of which signaling appears to be mediated via protein sulfhydryls to generate a post-translational modification called protein S-guanylation. 8-Nitro-cGMP specifically S-guanylates Keap1, a negative regulator of transcription factor Nrf2, which in turn up-regulates transcription of HO-1. Our recent study revealed that the autophagy might be involved in the 8-nitro-cGMP-dependent antimicrobial effect. The 8-nitro-cGMP signaling was also found to be regulated by reactive sulfur species that have superior antioxidant activity and unique signaling function. This review will discuss a new paradigm of the host defense that operates via formation of a unique cell signaling molecule, 8-nitro-cGMP, during microbial infections.
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Affiliation(s)
- Takaaki Akaike
- Department of Environmental Health Sciences and Molecular Toxicology, Tohoku University Graduate School of Medicine
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20
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Kunieda K, Tsutsuki H, Ida T, Kishimoto Y, Kasamatsu S, Sawa T, Goshima N, Itakura M, Takahashi M, Akaike T, Ihara H. 8-Nitro-cGMP Enhances SNARE Complex Formation through S-Guanylation of Cys90 in SNAP25. ACS Chem Neurosci 2015. [PMID: 26221773 DOI: 10.1021/acschemneuro.5b00196] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Nitrated guanine nucleotide 8-nitroguanosine 3',5'-cyclic monophosphate (8-nitro-cGMP) generated by reactive oxygen/nitrogen species causes protein S-guanylation. However, the mechanism of 8-nitro-cGMP formation and its protein targets in the normal brain have not been identified. Here, we investigated 8-nitro-cGMP generation and protein S-guanylation in the rodent brain. Immunohistochemistry indicated that 8-nitro-cGMP was produced by neurons, such as pyramidal cells and interneurons. Using liquid chromatography-tandem mass spectrometry, we determined endogenous 8-nitro-cGMP levels in the brain as 2.92 ± 0.10 pmol/mg protein. Based on S-guanylation proteomics, we identified several S-guanylated neuronal proteins, including SNAP25 which is a core member of the soluble N-ethylmaleimide sensitive factor attachment protein receptor (SNARE) complex. SNAP25 post-translational modification including palmitoylation, phosphorylation, and oxidation, are known to regulate neurotransmission. Our results demonstrate that S-guanylation of SNAP25 enhanced the stability of the SNARE complex, which was further promoted by Ca(2+)-dependent activation of neuronal nitric oxide synthase. Using site-directed mutagenesis, we identified SNAP25 cysteine 90 as the main target of S-guanylation which enhanced the stability of the SNARE complex. The present study revealed a novel target of redox signaling via protein S-guanylation in the nervous system and provided the first substantial evidence of 8-nitro-cGMP function in the nervous system.
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Affiliation(s)
- Kohei Kunieda
- Department
of Biological Science, Graduate School of Science, Osaka Prefecture University, Osaka 599-8531, Japan
| | - Hiroyasu Tsutsuki
- Department
of Microbiology, Graduate School of Medical Sciences, Kumamoto University, Kumamoto 860-8556, Japan
| | - Tomoaki Ida
- Department
of Environmental Health Sciences and Molecular Toxicology, Graduate
School of Medicine, Tohoku University, Miyagi 980-8575, Japan
| | - Yusuke Kishimoto
- Department
of Biological Science, Graduate School of Science, Osaka Prefecture University, Osaka 599-8531, Japan
| | - Shingo Kasamatsu
- Department
of Environmental Health Sciences and Molecular Toxicology, Graduate
School of Medicine, Tohoku University, Miyagi 980-8575, Japan
| | - Tomohiro Sawa
- Department
of Microbiology, Graduate School of Medical Sciences, Kumamoto University, Kumamoto 860-8556, Japan
| | - Naoki Goshima
- Quantitative
Proteomics Team, Molecular Profiling Research Center for Drug Discovery, National Institute of Advanced Industrial Science and Technology, Tokyo 135-0064, Japan
| | - Makoto Itakura
- Department
of Biochemistry, Kitasato University School of Medicine, Kanagawa 252-0374, Japan
| | - Masami Takahashi
- Department
of Biochemistry, Kitasato University School of Medicine, Kanagawa 252-0374, Japan
| | - Takaaki Akaike
- Department
of Environmental Health Sciences and Molecular Toxicology, Graduate
School of Medicine, Tohoku University, Miyagi 980-8575, Japan
| | - Hideshi Ihara
- Department
of Biological Science, Graduate School of Science, Osaka Prefecture University, Osaka 599-8531, Japan
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21
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Ishima Y, Narisoko T, Kragh-Hansen U, Kotani S, Nakajima M, Otagiri M, Maruyama T. Nitration of indoxyl sulfate facilitates its cytotoxicity in human renal proximal tubular cells via expression of heme oxygenase-1. Biochem Biophys Res Commun 2015; 465:481-7. [PMID: 26277392 DOI: 10.1016/j.bbrc.2015.08.043] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2015] [Accepted: 08/10/2015] [Indexed: 02/06/2023]
Abstract
Peroxynitrite, the reaction product of superoxide [Formula: see text] and nitric oxide (NO), nitrates tyrosine residues, unsaturated fatty acids, cyclic guanosine monophosphate and other phenolics. We report herein that indoxyl sulfate (IS) is also nitrated by peroxynitrite in vitro and forms 2-nitro-IS, as determined from spectral characteristics and (1)H-NMR. IS is one of the very important uremic toxins that accelerate the progression of chronic kidney disease via various mechanisms. However, cell viability experiments with human proximal tubular cells show that the cytotoxicity of 2-nitro-IS is several-fold higher than that of IS. The explanation for this finding seems to be that 2-nitro-IS induces a much more pronounced generation of intracellular reactive oxygen species (ROS) than IS. Results with inhibitors revealed that an organic anion transporter, several intracellular enzymes and nonprotein-bound iron ions are reasons for this finding. Most importantly, however, as detected by immunofluorescence and Western blotting, 2-nitro-IS induces the expression of heme oxygenase-1 and thereby the formation of ROS; most probably through the Fenton reaction. The final result of the increased amounts of ROS is death of the kidney cells. Thus, nitration of uremic toxins by peroxynitrite may help us to understand the initiation and progress of chronic kidney diseases.
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Affiliation(s)
- Yu Ishima
- Department of Biopharmaceutics, Graduate School of Pharmaceutical Sciences, Kumamoto University, 5-1 Oe-honmachi, Kumamoto 862-0973, Japan; Center for Clinical Pharmaceutical Sciences, Kumamoto University, 5-1 Oe-honmachi, Kumamoto 862-0973, Japan
| | - Toru Narisoko
- Department of Biopharmaceutics, Graduate School of Pharmaceutical Sciences, Kumamoto University, 5-1 Oe-honmachi, Kumamoto 862-0973, Japan
| | | | - Shunsuke Kotani
- Department of Organic Chemistry, Graduate School of Pharmaceutical Sciences, Kumamoto University, 5-1 Oe-honmachi, Kumamoto 862-0973, Japan
| | - Makoto Nakajima
- Department of Organic Chemistry, Graduate School of Pharmaceutical Sciences, Kumamoto University, 5-1 Oe-honmachi, Kumamoto 862-0973, Japan
| | - Masaki Otagiri
- Faculty of Pharmaceutical Sciences, Sojo University, 4-22-1 Ikeda, Kumamoto 860-0082, Japan; Drug Delivery System Institute, Sojo University, 4-22-1 Ikeda, Kumamoto 860-0082, Japan
| | - Toru Maruyama
- Department of Biopharmaceutics, Graduate School of Pharmaceutical Sciences, Kumamoto University, 5-1 Oe-honmachi, Kumamoto 862-0973, Japan; Center for Clinical Pharmaceutical Sciences, Kumamoto University, 5-1 Oe-honmachi, Kumamoto 862-0973, Japan.
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22
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Convergence of biological nitration and nitrosation via symmetrical nitrous anhydride. Nat Chem Biol 2015; 11:504-10. [PMID: 26006011 PMCID: PMC4472503 DOI: 10.1038/nchembio.1814] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2015] [Accepted: 04/06/2015] [Indexed: 02/06/2023]
Abstract
Current perspective holds that the generation of secondary signaling mediators from nitrite (NO2−) requires acidification to nitrous acid (HNO2) or metal catalysis. Herein, the use of stable isotope-labeled NO2− and LC-MS/MS analysis of products revealed that NO2− also participates in fatty acid nitration and thiol S-nitrosation at neutral pH. These reactions occur in the absence of metal centers and are stimulated by nitric oxide (•NO) autoxidation via symmetrical dinitrogen trioxide (nitrous anhydride, symN2O3) formation. While theoretical models have predicted physiological symN2O3 formation, its generation is now demonstrated in aqueous reaction systems, cell models and in viv, with the concerted reactions of •NO and NO2− shown to be critical for symN2O3 formation. These results reveal new mechanisms underlying the NO2− propagation of •NO signaling and the regulation of both biomolecule function and signaling network activity via NO2−-dependent nitrosation and nitration reactions.
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Parsons BJ, Spickett CM. Special issue on "Analytical methods for the detection of oxidized biomolecules and antioxidants". Free Radic Res 2015; 49:473-6. [PMID: 25884783 DOI: 10.3109/10715762.2015.1024678] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Affiliation(s)
- B J Parsons
- Faculty of Health and Social Sciences, Leeds Beckett University , Leeds , UK
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24
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Silvestri S, Orlando P, Armeni T, Padella L, Brugè F, Seddaiu G, Littarru GP, Tiano L. Coenzyme Q10 and α-lipoic acid: antioxidant and pro-oxidant effects in plasma and peripheral blood lymphocytes of supplemented subjects. J Clin Biochem Nutr 2015; 57:21-6. [PMID: 26236096 PMCID: PMC4512890 DOI: 10.3164/jcbn.14-130] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2014] [Accepted: 12/18/2014] [Indexed: 12/24/2022] Open
Abstract
Reactive oxygen species not only cause damage but also have a physiological role in the protection against pathogens and in cell signalling. Mitochondrial nutrients, such as coenzyme Q10 and α-lipoic acid, beside their acknowledged antioxidant activities, show interesting features in relation to their redox state and consequent biological activity. In this study, we tested whether oral supplementation with 200 mg/day of coenzyme Q10 alone or in association with 200 mg/die of α-lipoic acid for 15 days on 16 healthy subjects was able to modulate the oxidative status into different compartments (plasma and cells), in basal condition and following an oxidative insult in peripheral blood lymphocytes exposed in vitro to H2O2. Data have shown that tested compounds produced antioxidant and bioenergetic effects improving oxidative status of the lipid compartment and mitochondrial functionality in peripheral blood lymphocytes. Simultaneously, an increased intracellular reactive oxygen species level was observed, although they did not lead to enhanced DNA oxidative damage. Coenzyme Q10 and α-lipoic acid produced beneficial effects also steering intracellular redox poise toward a pro-oxidant environment. In contrast with other antioxidant molecules, pro-oxidant activities of tested mitochondrial nutrients and consequent oxidant mediated signalling, could have important implications in promoting adaptive response to oxidative stress.
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Affiliation(s)
- Sonia Silvestri
- Department of Dentistry and Clinical Sciences, Polytechnic University of Marche, via Ranieri, 60128 Ancona, Italy
| | - Patrick Orlando
- Department of Dentistry and Clinical Sciences, Polytechnic University of Marche, via Ranieri, 60128 Ancona, Italy
| | - Tatiana Armeni
- Department of Dentistry and Clinical Sciences, Polytechnic University of Marche, via Ranieri, 60128 Ancona, Italy
| | - Lucia Padella
- Clinic of Pediatrics, Department of Clinical Sciences, Polytechnic University of Marche, Azienda Ospedali Riuniti, Defense of Salesi, via Toti 60123, Ancona, Italy
| | - Francesca Brugè
- Department of Dentistry and Clinical Sciences, Polytechnic University of Marche, via Ranieri, 60128 Ancona, Italy
| | - Giovanna Seddaiu
- Department of Agriculture, Studies University of Sassari, Piazza Università 21, 07100 Sassari, Italy
| | - Gian Paolo Littarru
- Department of Dentistry and Clinical Sciences, Polytechnic University of Marche, via Ranieri, 60128 Ancona, Italy
| | - Luca Tiano
- Department of Dentistry and Clinical Sciences, Polytechnic University of Marche, via Ranieri, 60128 Ancona, Italy
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25
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Akaike T. [Reactive oxygen species signaling and redox homeostasis regulated by 8-nitro-cGMP]. YAKUGAKU ZASSHI 2014; 134:515-9. [PMID: 24694812 DOI: 10.1248/yakushi.13-00251-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
An emerging aspect of redox signaling is the signaling pathway mediated by electrophilic byproducts, such as nitrated cyclic nucleotide (8-nitro-cGMP), generated via reactions of reactive oxygen species (ROS), NO, and their secondary products. We recently clarified that enzymatically-generated hydrosulfide derivatives regulate the metabolism and signaling of 8-nitro-cGMP. Although hydrogen sulfide was proposed to be a gaseous signaling mediator, its exact nature and physiological functions remain obscure. We thus found that particular hydropersulfide derivatives rather than hydrogen sulfide greatly ameliorated chronic heart failure after myocardial infarction in vivo in mice. This potent cardioprotective effect resulted from strong suppression of H-Ras signaling activated by electrophilic stimulation with 8-nitro-cGMP functioning as a second messenger for the redox signaling induced by NO and ROS. A significant amount of 8-nitro-cGMP was formed in the heart tissue after myocardial infarction, and hydrogen sulfide exogenously administered completely nullified this formation. We have reportedly shown that hydropersulfide effectively thiolated electrophiles in cells, which is best represented by 8-nitro-cGMP. Our current study indicates that electrophile thiolation may be a unique mechanism regulating ROS signaling and redox homeostasis, which may thus promote further development of prophylactic and therapeutic options for oxidative stress-related diseases.
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Affiliation(s)
- Takaaki Akaike
- Department of Microbiology, Graduate School of Medical Sciences, Kumamoto University
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26
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Reactive cysteine persulfides and S-polythiolation regulate oxidative stress and redox signaling. Proc Natl Acad Sci U S A 2014; 111:7606-11. [PMID: 24733942 DOI: 10.1073/pnas.1321232111] [Citation(s) in RCA: 691] [Impact Index Per Article: 69.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Using methodology developed herein, it is found that reactive persulfides and polysulfides are formed endogenously from both small molecule species and proteins in high amounts in mammalian cells and tissues. These reactive sulfur species were biosynthesized by two major sulfurtransferases: cystathionine β-synthase and cystathionine γ-lyase. Quantitation of these species indicates that high concentrations of glutathione persulfide (perhydropersulfide >100 μM) and other cysteine persulfide and polysulfide derivatives in peptides/proteins were endogenously produced and maintained in the plasma, cells, and tissues of mammals (rodent and human). It is expected that persulfides are especially nucleophilic and reducing. This view was found to be the case, because they quickly react with H2O2 and a recently described biologically generated electrophile 8-nitroguanosine 3',5'-cyclic monophosphate. These results indicate that persulfides are potentially important signaling/effector species, and because H2S can be generated from persulfide degradation, much of the reported biological activity associated with H2S may actually be that of persulfides. That is, H2S may act primarily as a marker for the biologically active of persulfide species.
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Role of 8-nitro-cGMP and its redox regulation in cardiovascular electrophilic signaling. J Mol Cell Cardiol 2014; 73:10-7. [PMID: 24530900 DOI: 10.1016/j.yjmcc.2014.02.003] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/05/2013] [Revised: 02/03/2014] [Accepted: 02/05/2014] [Indexed: 12/11/2022]
Abstract
Structural and morphological changes of the cardiovascular systems (cardiovascular remodeling) are a major clinical outcome of cardiovascular diseases. Many lines of evidences have implied that transfiguration of reduction/oxidation (redox) homeostasis due to excess production of reactive oxygen species (ROS) and/or ROS-derived electrophilic metabolites (electrophiles) is the main cause of cardiovascular remodeling. Gasotransmitters, such as nitric oxide (NO) and endogenous electrophiles, are considered major bioactive species and have been extensively studied in the context of physiological and pathological cardiovascular events. We have recently found that hydrogen sulfide-related reactive species function as potent nucleophiles to eliminate electrophilic modification of signaling proteins induced by NO-derived electrophilic byproducts (e.g., 8-nitroguanosine 3',5'-cyclic monophosphate and nitro-oleic acid). In this review, we discuss the current understanding of redox control of cardiovascular pathophysiology by electrophiles and nucleophiles. We propose that modulation of electrophile-mediated post-translational modification of protein cysteine thiols may be a new therapeutic strategy of cardiovascular diseases. This article is part of a Special Issue entitled "Redox Signalling in the Cardiovascular System".
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Sawa T, Ihara H, Ida T, Fujii S, Nishida M, Akaike T. Formation, signaling functions, and metabolisms of nitrated cyclic nucleotide. Nitric Oxide 2013; 34:10-8. [PMID: 23632125 DOI: 10.1016/j.niox.2013.04.004] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2013] [Accepted: 04/16/2013] [Indexed: 01/07/2023]
Abstract
8-Nitroguanosine 3',5'-cyclic monophosphate (8-nitro-cGMP) is a unique derivative of guanosine 3',5'-cyclic monophosphate (cGMP) formed in mammalian and plant cells in response to production of nitric oxide and reactive oxygen species. 8-Nitro-cGMP possesses signaling activity inherited from parental cGMP, including induction of vasorelaxation through activation of cGMP-dependent protein kinase. On the other hand, 8-nitro-cGMP mediates cellular signaling that is not observed for native cGMP, e.g., it behaves as an electrophile and reacts with protein sulfhydryls, which results in cGMP adduction to protein sulfhydryls (protein S-guanylation). Several proteins have been identified as targets for endogenous protein S-guanylation, including Kelch-like ECH-associated protein 1 (Keap1), H-Ras, and mitochondrial heat shock proteins. 8-Nitro-cGMP signaling via protein S-guanylation of those proteins may have evolved to convey adaptive cellular stress responses. 8-Nitro-cGMP may not undergo conventional cGMP metabolism because of its resistance to phosphodiesterases. Hydrogen sulfide has recently been identified as a potent regulator for metabolisms of electrophiles including 8-nitro-cGMP, through sulfhydration of electrophiles, e.g., leading to the formation of 8-SH-cGMP. Better understanding of the molecular basis for the formation, signaling functions, and metabolisms of 8-nitro-cGMP would be useful for the development of new diagnostic approaches and treatment of diseases related to oxidative stress and redox metabolisms.
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Key Words
- 15-deoxy-Δ(12,14)-prostaglandin J(2)
- 15d-PGJ(2)
- 1H-(1,2,4)oxadiazolo(4,3-a)quinoxalin-1-one
- 2-(4-carboxyphenyl)-4,4,5,5-tetramethylimidazoline-1-oxyl-3-oxide
- 4-hydroxy-2-nonenal
- 4H-8-bromo-1,2,4-oxadiazolo(3,4-d)benz(b)(1,4)oxazin-1-one
- 60-kDa heat-shock protein
- 8-Nitro-cGMP
- 8-bromo-cGMP
- 8-bromoguanosine 3′,5′-cyclic monophosphate
- 8-nitroguanosine 3′,5′-cyclic monophosphate
- ATP
- CBS
- CSE
- ELISA
- ETC
- Electrophile
- GSH
- GTP
- HNE
- HO-1
- HPLC-ECD
- HSP60
- Hydrogen sulfide
- IFN-γ
- IL-1β
- Keap1
- Kelch-like ECH-associated protein 1
- LC–MS/MS
- LPS
- MI
- MPO
- N(G)-nitro-l-arginine methyl ester
- N(ω)-monomethyl-l-arginine
- NADPH oxidase
- NADPH oxidase 2
- NOS
- NS 2028
- Nox
- Nox2
- Nrf2
- ODQ
- Oxidative stress
- PDEs
- PKG
- PTM
- Protein S-guanylation
- RAR
- RNOS
- ROS
- SOD
- TNFα
- adenosine 3′,5′-cyclic monophosphate
- adenosine 5′-triphosphate
- cAMP
- cGMP
- cGMP-dependent protein kinase
- cPTIO
- cystathionine β-synthase
- cystathionine γ-lyase
- eNOS
- electron transport chain
- endothelial NOS
- enzyme-linked immunosorbent assay
- glutathione
- guanosine 3′,5′-cyclic monophosphate
- guanosine 5′-triphosphate
- heme oxygenase-1
- high-performance liquid chromatography with electrochemical detector
- iNOS
- inducible NOS
- interferon-γ
- interleukin-1β
- l-NAME
- l-NMMA
- lipopolysaccharide
- liquid chromatography with tandem mass spectrometry
- mPTP
- mitochondrial permeability transition pore
- myeloperoxidase
- myocardial infarction
- nNOS
- neuronal NOS
- nitric oxide synthases
- nuclear factor erythroid 2-related factor 2
- pGC
- particulate-type guanylyl cyclase
- phosphodiesterases
- post-translational modification
- reactive nitrogen oxide species
- reactive oxygen species
- retinoic acid receptor
- sGC
- soluble-type guanylyl cyclase
- superoxide dismutase
- tumor necrosis factor α
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Affiliation(s)
- Tomohiro Sawa
- Department of Microbiology, Graduate School of Medical Sciences, Kumamoto University, 1-1-1 Honjo, Kumamoto 860-8556, Japan; PRESTO, Japan Science and Technology Agency (JST), 4-1-8 Honcho Kawaguchi, Saitama 332-001, Japan
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