1
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Yang L, Chen H, Du P, Miao X, Huang S, Cheng D, Xu H, Zhang Z. Inhibition mechanism of Rhizoctonia solani by pectin-coated iron metal-organic framework nanoparticles and evidence of an induced defense response in rice. JOURNAL OF HAZARDOUS MATERIALS 2024; 474:134807. [PMID: 38850939 DOI: 10.1016/j.jhazmat.2024.134807] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/28/2023] [Revised: 06/01/2024] [Accepted: 06/02/2024] [Indexed: 06/10/2024]
Abstract
Nanocrop protectants have attracted much attention as sustainable platforms for controlling pests and diseases and improving crop nutrition. Here, we reported the fungicidal activity and disease inhibition potential of pectin-coated metal-iron organic framework nanoparticles (Fe-MOF-PT NPs) against rice stripe blight (RSB). An in vitro bacterial inhibition assay showed that Fe-MOF-PT NPs (80 mg/L) significantly inhibited mycelial growth and nucleus formation. The Fe-MOF-PT NPs adsorbed to the surface of mycelia and induced toxicity by disrupting cell membranes, mitochondria, and DNA. The results of a nontargeted metabolomics analysis showed that the metabolites of amino acids and their metabolites, heterocyclic compounds, fatty acids, and nucleotides and their metabolites were significantly downregulated after treatment with 80 mg/L NPs. The difference in metabolite abundance between the CK and Fe-MOF-PT NPs (80 mg/L) treatment groups was mainly related to nucleotide metabolism, pyrimidine metabolism, purine metabolism, fatty acid metabolism, and amino acid metabolism. The results of the greenhouse experiment showed that Fe-MOF-PT NPs improved rice resistance to R. solani by inhibiting mycelial invasion, enhancing antioxidant enzyme activities, activating the jasmonic acid signaling pathway, and enhancing photosynthesis. These findings indicate the great potential of Fe-MOF-PT NPs as a new RSB disease management strategy and provide new insights into plant fungal disease management.
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Affiliation(s)
- Liupeng Yang
- National Key Laboratory of Green Pesticide, South China Agricultural University, Guangzhou 510642, China; Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China
| | - Huiya Chen
- National Key Laboratory of Green Pesticide, South China Agricultural University, Guangzhou 510642, China; Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China
| | - Pengrui Du
- National Key Laboratory of Green Pesticide, South China Agricultural University, Guangzhou 510642, China; Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China
| | - Xiaoran Miao
- National Key Laboratory of Green Pesticide, South China Agricultural University, Guangzhou 510642, China; Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China
| | - Suqing Huang
- Guangdong Biological Pesticide Engineering Technology Research Center, South China Agricultural University, Guangzhou 510642, China; Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China
| | - Dongmei Cheng
- Guangdong Biological Pesticide Engineering Technology Research Center, South China Agricultural University, Guangzhou 510642, China; Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China
| | - Hanhong Xu
- National Key Laboratory of Green Pesticide, South China Agricultural University, Guangzhou 510642, China; Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China.
| | - Zhixiang Zhang
- National Key Laboratory of Green Pesticide, South China Agricultural University, Guangzhou 510642, China; Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China.
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2
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Kasamatsu S, Tsutsuki H, Ida T, Sawa T, Watanabe Y, Akaike T, Ihara H. Regulation of nitric oxide/reactive oxygen species redox signaling by nNOS splicing variants. Nitric Oxide 2022; 120:44-52. [PMID: 35033681 DOI: 10.1016/j.niox.2022.01.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Revised: 01/05/2022] [Accepted: 01/12/2022] [Indexed: 10/19/2022]
Abstract
We previously demonstrated different expression patterns of the neuronal nitric oxide synthase (nNOS) splicing variants, nNOS-μ and nNOS-α, in the rat brain; however, their exact functions have not been fully elucidated. In this study, we compared the enzymatic activities of nNOS-μ and nNOS-α and investigated intracellular redox signaling in nNOS-expressing PC12 cells, stimulated with a neurotoxicant, 1-methyl-4-phenylpyridinium ion (MPP+), to enhance the nNOS uncoupling reaction. Using in vitro studies, we show that nNOS-μ produced nitric oxide (NO), as did nNOS-α, in the presence of tetrahydrobiopterin (BH4), an important cofactor for the enzymatic activity. However, nNOS-μ generated more NO and less superoxide than nNOS-α in the absence of BH4. MPP + treatment induced more reactive oxygen species (ROS) production in nNOS-α-expressing PC12 cells than in those expressing nNOS-μ, which correlated with the intracellular production of 8-nitroguanosine 3',5'-cyclic monophosphate (8-nitro-cGMP), a downstream messenger of nNOS redox signaling, and apoptosis in these cells. Furthermore, post-treatment with 8-nitro-cGMP aggravated MPP+-induced cytotoxicity via activation of the H-Ras/extracellular signal-regulated kinase signaling pathway. In conclusion, our results provide strong evidence that nNOS-μ exhibits distinctive enzymatic properties of NO/ROS production, contributing to the regulation of intracellular redox signaling, including the downstream production of 8-nitro-cGMP.
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Affiliation(s)
- Shingo Kasamatsu
- 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 Medicine and Molecular Toxicology, Tohoku University Graduate School of Medicine, Sendai, Miyagi, 980-8575, Japan
| | - Tomohiro Sawa
- Department of Microbiology, Graduate School of Medical Sciences, Kumamoto University, Kumamoto, 860-8556, Japan
| | - Yasuo Watanabe
- Department of Pharmacology, Showa Pharmaceutical University, Tokyo, 194-8543, Japan
| | - Takaaki Akaike
- Department of Environmental Medicine and Molecular Toxicology, Tohoku University Graduate School of Medicine, Sendai, 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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3
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Fuchi Y, Murase H, Kai R, Kurata K, Karasawa S, Sasaki S. Artificial Host Molecules to Covalently Capture 8-Nitro-cGMP in Neutral Aqueous Solutions and in Cells. Bioconjug Chem 2021; 32:385-393. [PMID: 33529519 DOI: 10.1021/acs.bioconjchem.1c00012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
New 1,3-diazaphenoxazine derivatives (nitroG-Grasp-Guanidine, NGG) have been developed to covalently capture 8-nitro-cGMP in neutral aqueous solutions, which furnish a thiol reactive group to displace the 8-nitro group and a guanidine unit for interaction with the cyclic phosphate. The thiol group was introduced to the 1,3-diazaphenoxazine skeleton through a 2-aminobenzylthiol group (NGG-H) and its 4-methyl (NGG-pMe) and 6-methyl (NGG-oMe) substituted derivatives. The covalent adducts were formed between the NGG derivatives and 8-nitro-cGMP in neutral aqueous solutions. Among the NGG derivatives, the one with the 6-methyl group (NGG-oMe) exhibited the most efficient capture reaction. Furthermore, NGG-H showed a cell permeability into HEK-293 and RAW 264.7 cells and reduced the intracellular 8-nitro-cGMP level. The NGG derivatives developed in this study would become a valuable tool to study the intracellular role of 8-nitro-cGMP.
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Affiliation(s)
- Yasufumi Fuchi
- Graduate School of Pharmaceutical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-Ku, Fukuoka 812-8582, Japan.,Faculty of Pharmaceutical Sciences, Showa Pharmaceutical University, 3-3165 Higashi-tamagawagakuen, Machida 194-8543, Japan.,Graduate School of Pharmaceutical Sciences, Tokushima Bunri University, 180 Yamashiro-cho, Tokushima 770-8514, Japan
| | - Hirotaka Murase
- Graduate School of Pharmaceutical Sciences, Nagasaki International University, 2825-7 Huis Ten Bosch Machi, Sasebo 859-3298, Japan
| | - Ryosuke Kai
- Graduate School of Pharmaceutical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-Ku, Fukuoka 812-8582, Japan
| | - Kakeru Kurata
- Faculty of Pharmaceutical Sciences, Showa Pharmaceutical University, 3-3165 Higashi-tamagawagakuen, Machida 194-8543, Japan
| | - Satoru Karasawa
- Faculty of Pharmaceutical Sciences, Showa Pharmaceutical University, 3-3165 Higashi-tamagawagakuen, Machida 194-8543, Japan
| | - Shigeki Sasaki
- Graduate School of Pharmaceutical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-Ku, Fukuoka 812-8582, Japan.,Graduate School of Pharmaceutical Sciences, Nagasaki International University, 2825-7 Huis Ten Bosch Machi, Sasebo 859-3298, Japan
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4
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Masuda K, Tsutsuki H, Kasamatsu S, Ida T, Takata T, Sugiura K, Nishida M, Watanabe Y, Sawa T, Akaike T, Ihara H. Involvement of nitric oxide/reactive oxygen species signaling via 8-nitro-cGMP formation in 1-methyl-4-phenylpyridinium ion-induced neurotoxicity in PC12 cells and rat cerebellar granule neurons. Biochem Biophys Res Commun 2017; 495:2165-2170. [PMID: 29258821 DOI: 10.1016/j.bbrc.2017.12.088] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2017] [Accepted: 12/15/2017] [Indexed: 12/19/2022]
Abstract
To investigate the role of nitric oxide (NO)/reactive oxygen species (ROS) redox signaling in Parkinson's disease-like neurotoxicity, we used 1-methyl-4-phenylpyridinium (MPP+) treatment (a model of Parkinson's disease). We show that MPP+-induced neurotoxicity was dependent on ROS from neuronal NO synthase (nNOS) in nNOS-expressing PC12 cells (NPC12 cells) and rat cerebellar granule neurons (CGNs). Following MPP+ treatment, we found production of 8-nitroguanosine 3',5'-cyclic monophosphate (8-nitro-cGMP), a second messenger in the NO/ROS redox signaling pathway, in NPC12 cells and rat CGNs, that subsequently induced S-guanylation and activation of H-Ras. Additionally, following MPP+ treatment, extracellular signal-related kinase (ERK) phosphorylation was enhanced. Treatment with a mitogen-activated protein kinase (MAPK)/ERK kinase (MEK) inhibitor attenuated MPP+-induced ERK phosphorylation and neurotoxicity. In conclusion, we demonstrate for the first time that NO/ROS redox signaling via 8-nitro-cGMP is involved in MPP+-induced neurotoxicity and that 8-nitro-cGMP activates H-Ras/ERK signaling. Our results indicate a novel mechanism underlying MPP+-induced neurotoxicity, and therefore contribute novel insights to the mechanisms underlying Parkinson's disease.
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Affiliation(s)
- Kumiko Masuda
- Department of Biological Science, Graduate School of Science, Osaka Prefecture University, Osaka, Japan; Project Management Department, SHIONOGI & CO., LTD., Osaka, Japan
| | - Hiroyasu Tsutsuki
- Department of Microbiology, Graduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan
| | - Shingo Kasamatsu
- Department of Environmental Health Sciences and Molecular Toxicology, 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
| | - Tsuyoshi Takata
- Department of Pharmacology, Showa Pharmaceutical University, Machida, Tokyo, Japan
| | - Kikuya Sugiura
- Department of Veterinary Science, Graduate School of Life and Environmental Sciences, Osaka Prefecture University, Osaka, Japan
| | - Motohiro Nishida
- Division of Cardiocirculatory Signaling, National Institute for Physiological Sciences (Okazaki Institute for Integrative Bioscience), National Institutes of Natural Sciences, Aichi, Japan
| | - Yasuo Watanabe
- Department of Pharmacology, Showa Pharmaceutical University, Machida, Tokyo, Japan
| | - Tomohiro Sawa
- Department of Microbiology, Graduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan
| | - Takaaki Akaike
- 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, Osaka, Japan.
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5
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Superoxide generation from nNOS splice variants and its potential involvement in redox signal regulation. Biochem J 2017; 474:1149-1162. [PMID: 28126743 DOI: 10.1042/bcj20160999] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2016] [Revised: 12/27/2016] [Accepted: 01/25/2017] [Indexed: 01/08/2023]
Abstract
We previously demonstrated different spacial expression profiles of the neuronal nitric oxide (NO) synthase (nNOS) splice variants nNOS-µ and nNOS-α in the brain; however, their exact functions are not fully understood. Here, we used electron paramagnetic resonance to compare the electron-uncoupling reactions of recombinant nNOS-µ and nNOS-α that generate reactive oxygen species (ROS), in this case superoxide. nNOS-µ generated 44% of the amount of superoxide that nNOS-α generated. We also evaluated the ROS production in HEK293 cells stably expressing nNOS-α and nNOS-µ by investigating these electron-uncoupling reactions as induced by calcium ionophore A23187. A23187 treatment induced greater ROS production in HEK293 cells expressing nNOS-α than those expressing nNOS-µ. Also, immunocytochemical analysis revealed that A23187-treated cells expressing nNOS-α produced more 8-nitroguanosine 3',5'-cyclic monophosphate, a second messenger in NO/ROS redox signaling, than did the cells expressing nNOS-µ. Molecular evolutionary analysis revealed that the ratio of nonsynonymous sites to synonymous sites for the nNOS-µ-specific region was higher than that for the complete gene, indicating that this region has fewer functional constraints than does the complete gene. These observations shed light on the physiological relevance of the nNOS-µ variant and may improve understanding of nNOS-dependent NO/ROS redox signaling and its pathophysiological consequences in neuronal systems.
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6
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Ahmed KA, Zhang T, Ono K, Tsutsuki H, Ida T, Akashi S, Miyata K, Oike Y, Akaike T, Sawa T. Synthesis and Characterization of 8-Nitroguanosine 3',5'-Cyclic Monophosphorothioate Rp-Isomer as a Potent Inhibitor of Protein Kinase G1α. Biol Pharm Bull 2016; 40:365-374. [PMID: 27980245 DOI: 10.1248/bpb.b16-00880] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Guanosine 3',5'-cyclic monophosphate (cGMP)-dependent protein kinases (PKG) are kinases regulating diverse physiological functions including vascular smooth muscle relaxation, neuronal synaptic plasticity, and platelet activities. Certain PKG inhibitors, such as Rp-diastereomers of derivatives of guanosine 3',5'-cyclic monophosphorothioate (Rp-cGMPS), have been designed and used to study PKG-regulated cell signaling. 8-Nitroguanosine 3',5'-cyclic monophosphate (8-nitro-cGMP) is an endogenous cGMP derivative formed as a result of excess production of reactive oxygen species and nitric oxide. 8-Nitro-cGMP causes persistent activation of PKG1α through covalent attachment of cGMP moieties to cysteine residues of the enzyme (i.e., the process called protein S-guanylation). In this study, we synthesized a nitrated analogue of Rp-cGMPS, 8-nitroguanosine 3',5'-cyclic monophosphorothioate Rp-isomer (Rp-8-nitro-cGMPS), and investigated its effects on PKG1α activity. We synthesized Rp-8-nitro-cGMPS by reacting Rp-8-bromoguanosine 3',5'-cyclic monophosphorothioate (Rp-8-bromo-cGMPS) with sodium nitrite. Rp-8-Nitro-cGMPS reacted with the thiol compounds cysteine and glutathione to form Rp-8-thioalkoxy-cGMPS adducts to a similar extent as did 8-nitro-cGMP. As an important finding, a protein S-guanylation-like modification was clearly observed, by using Western blotting, in the reaction between recombinant PKG1α and Rp-8-nitro-cGMPS. Rp-8-Nitro-cGMPS inhibited PKG1α activity with an inhibitory constant of 22 µM in a competitive manner. An organ bath assay with mouse aorta demonstrated that Rp-8-nitro-cGMPS inhibited vascular relaxation induced by acetylcholine or 8-bromo-cGMP more than Rp-8-bromo-cGMPS did. These findings suggest that Rp-8-nitro-cGMPS inhibits PKG through induction of an S-guanylation-like modification by attaching the Rp-cGMPS moiety to the enzyme. Additional study is warranted to explore the potential application of Rp-8-nitro-cGMPS to biochemical and therapeutic research involving PKG1α activation.
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7
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Akashi S, Ahmed KA, Sawa T, Ono K, Tsutsuki H, Burgoyne JR, Ida T, Horio E, Prysyazhna O, Oike Y, Rahaman MM, Eaton P, Fujii S, Akaike T. Persistent Activation of cGMP-Dependent Protein Kinase by a Nitrated Cyclic Nucleotide via Site Specific Protein S-Guanylation. Biochemistry 2016; 55:751-61. [PMID: 26784639 DOI: 10.1021/acs.biochem.5b00774] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
8-Nitroguanosine 3',5'-cyclic monophosphate (8-nitro-cGMP) is a nitrated derivative of guanosine 3',5'-cyclic monophosphate (cGMP) formed endogenously under conditions associated with production of both reactive oxygen species and nitric oxide. It acts as an electrophilic second messenger in the regulation of cellular signaling by inducing a post-translational modification of redox-sensitive protein thiols via covalent adduction of cGMP moieties to protein thiols (protein S-guanylation). Here, we demonstrate that 8-nitro-cGMP potentially S-guanylates thiol groups of cGMP-dependent protein kinase (PKG), the enzyme that serves as one of the major receptor proteins for intracellular cGMP and controls a variety of cellular responses. S-Guanylation of PKG was found to occur in a site specific manner; Cys42 and Cys195 were the susceptible residues among 11 Cys residues. Importantly, S-guanylation at Cys195, which is located in the high-affinity cGMP binding domain of PKG, causes persistent enzyme activation as determined by in vitro kinase assay as well as by an organ bath assay. In vivo, S-guanylation of PKG was demonstrated to occur in mice without any specific treatment and was significantly enhanced by lipopolysaccharide administration. These findings warrant further investigation in terms of the physiological and pathophysiological roles of S-guanylation-dependent persistent PKG activation.
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Affiliation(s)
- Soichiro Akashi
- Department of Environmental Health Sciences 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
| | - Tomohiro Sawa
- Department of Microbiology, Graduate School of Medical Sciences, Kumamoto University , 1-1-1 Honjo, Chuo-ku, Kumamoto 860-8556, Japan.,Precursory Research for Embryonic Science and Technology, Japan Science and Technology Agency , Kawaguchi, Saitama 332-0012, Japan
| | - Katsuhiko Ono
- Department of Microbiology, Graduate School of Medical Sciences, Kumamoto University , 1-1-1 Honjo, Chuo-ku, Kumamoto 860-8556, Japan
| | - Hiroyasu Tsutsuki
- Department of Microbiology, Graduate School of Medical Sciences, Kumamoto University , 1-1-1 Honjo, Chuo-ku, Kumamoto 860-8556, Japan
| | - Joseph R Burgoyne
- Department of Cardiology, Cardiovascular Division, King's College London, The Rayne Institute, St Thomas' Hospital , London SE1 7EH, U.K
| | - Tomoaki Ida
- Department of Environmental Health Sciences and Molecular Toxicology, Tohoku University Graduate School of Medicine , 2-1 Seiryo-machi, Aoba-ku, Sendai 980-8575, Japan
| | - Eiji Horio
- Department of Molecular Genetics, Graduate School of Medical Sciences, Kumamoto University , Honjo 1-1-1, Kumamoto 860-8556, Japan
| | - Oleksandra Prysyazhna
- Department of Cardiology, Cardiovascular Division, King's College London, The Rayne Institute, St Thomas' Hospital , London SE1 7EH, U.K
| | - Yuichi Oike
- Department of Molecular Genetics, Graduate School of Medical Sciences, Kumamoto University , Honjo 1-1-1, Kumamoto 860-8556, Japan
| | - Mizanur Md Rahaman
- Department of Environmental Health Sciences and Molecular Toxicology, Tohoku University Graduate School of Medicine , 2-1 Seiryo-machi, Aoba-ku, Sendai 980-8575, Japan
| | - Philip Eaton
- Department of Cardiology, Cardiovascular Division, King's College London, The Rayne Institute, St Thomas' Hospital , London SE1 7EH, U.K
| | - Shigemoto Fujii
- Department of Environmental Health Sciences and Molecular Toxicology, Tohoku University Graduate School of Medicine , 2-1 Seiryo-machi, Aoba-ku, Sendai 980-8575, Japan
| | - Takaaki Akaike
- Department of Environmental Health Sciences and Molecular Toxicology, Tohoku University Graduate School of Medicine , 2-1 Seiryo-machi, Aoba-ku, Sendai 980-8575, Japan
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8
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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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9
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Cosker F, Lima FJB, Lahlou S, Magalhães PJC. Cytoprotective effect of 1-nitro-2-phenylethane in mice pancreatic acinar cells subjected to taurocholate: putative role of guanylyl cyclase-derived 8-nitro-cyclic-GMP. Biochem Pharmacol 2014; 91:191-201. [PMID: 25107700 DOI: 10.1016/j.bcp.2014.07.030] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2014] [Revised: 07/28/2014] [Accepted: 07/28/2014] [Indexed: 12/21/2022]
Abstract
The nitroderivative 1-nitro-2-phenylethane (NPE) was recently described as a compound possessing heme-dependent soluble guanylyl cyclase (sGC) stimulating properties in vascular smooth muscle cells. In this study, we tested such pharmacological property of NPE in mice pancreatic acinar cells subjected to the bile salt taurocholate, a type of pathological stimulus that simulates pancreatitis. Here, isolated acinar cells were treated with NPE in order to assess the role of sGC on the detrimental effects induced by taurocholate. NPE reduced taurocholate-elicited Ca(2+) overload, production of reactive oxygen species (ROS), apoptosis, necrosis, and exerted a protective effect against mitochondrial membrane potential (ΔΨm) dissipation. These NPE-induced effects were abolished by pretreatment with ODQ and KT 5823, and after the blockade of nitric oxide (NO) synthase with l-NAME, inhibitors of key components of the sGC pathway. Contrarily to cGMP that alone increased ΔΨm collapse and cell damage, the cytoprotective effect of NPE on ΔΨm and cell necrosis was almost reproduced by 8-nitro-cGMP, a second messenger generated by sGC under oxidative stress conditions. In conclusion, putative sGC stimulation with NPE reveals its cytoprotective profile on pancreatic cells subjected to taurocholate. Moreover, ROS and NO conjunctly appear to drive sGC activity in pancreatic acinar cells to implement an adaptive mechanism in response to oxidative and Ca(2+) stress through 8-nitro-cGMPsynthesis.
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Affiliation(s)
- François Cosker
- Biomedical Institute of the Brazilian Semiarid (INCT-IBISAB-CNPq), Department of Physiology and Pharmacology, School of Medicine, Federal University of Ceará, Fortaleza, Ceará 60430-270, Brazil.
| | - Francisco J B Lima
- Biomedical Institute of the Brazilian Semiarid (INCT-IBISAB-CNPq), Department of Physiology and Pharmacology, School of Medicine, Federal University of Ceará, Fortaleza, Ceará 60430-270, Brazil
| | - Saad Lahlou
- Biomedical Institute of the Brazilian Semiarid (INCT-IBISAB-CNPq), Department of Physiology and Pharmacology, School of Medicine, Federal University of Ceará, Fortaleza, Ceará 60430-270, Brazil
| | - Pedro J C Magalhães
- Biomedical Institute of the Brazilian Semiarid (INCT-IBISAB-CNPq), Department of Physiology and Pharmacology, School of Medicine, Federal University of Ceará, Fortaleza, Ceará 60430-270, Brazil
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10
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Redox signal regulation via nNOS phosphorylation at Ser847 in PC12 cells and rat cerebellar granule neurons. Biochem J 2014; 459:251-63. [PMID: 24499461 DOI: 10.1042/bj20131262] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Phosphorylation is considered a main mechanism modulating nNOS (neuronal nitric oxide synthase) function to reduce NO production. In the present study, the effects of nNOS phosphorylation on redox signalling, including that of NO, ROS (reactive oxygen species), and 8-nitro-cGMP (8-nitroguanosine 3',5'-cyclic monophosphate), a downstream messenger of redox signalling, were investigated. In vitro experiments revealed that a phosphorylation-mimic mutant of nNOS (Ser847 replaced with aspartic acid, 847D) increased uncoupling to produce a superoxide. In addition, nicotine, which triggers an influx of Ca2+, induced more ROS and 8-nitro-cGMP production in 847D-expressing PC12 cells than WT (wild-type)-expressing cells. Additionally, nicotine-induced phosphorylation of nNOS at Ser847 and increased ROS and 8-nitro-cGMP production in rat CGNs (cerebellar granule neurons). In CGNs, the NOS (nitric oxide synthase) inhibitor L-NAME (NG-nitro-L-arginine methyl ester) and superoxide dismutase completely inhibited ROS and 8-nitro-cGMP production, whereas the CaMK (Ca2+/calmodulin-dependent protein kinase) inhibitor KN93 mildly reduced this effect. Nicotine induced HO-1 (haem oxygenase 1) expression in CGNs and showed cytoprotective effects against apoptosis. Moreover, 8-nitro-cGMP treatment showed identical effects that were attenuated by KN93 pre-treatment. The present paper provides the first substantial corroboration for the biological effects of nNOS phosphorylation at Ser847 on redox signalling, including ROS and intracellular 8-nitro-cGMP generation in neurons, which possibly play roles in neuroprotection.
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Rahaman MM, Sawa T, Ahtesham AK, Khan S, Inoue H, Irie A, Fujii S, Akaike T. S-guanylation proteomics for redox-based mitochondrial signaling. Antioxid Redox Signal 2014; 20:295-307. [PMID: 22978631 PMCID: PMC3887461 DOI: 10.1089/ars.2012.4606] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
AIMS 8-nitroguanosine 3',5'-cyclic monophosphate (8-Nitro-cGMP) is a nitrated derivative of cGMP that is formed via cross-talk of reactive oxygen species formed by NADPH oxidase 2 and mitochondria. This nitrated nucleotide can function as a unique electrophilic second messenger in regulation of redox signaling by inducing a post-translational modification of protein thiols via cGMP adduction (protein S-guanylation). With S-guanylation proteomics, we investigated endogenous mitochondrial protein S-guanylation. RESULTS We developed a new mass spectrometry (MS)-based proteomic method-S-guanylation proteomics-which comprised two approaches: (i) direct protein digestion followed by immunoaffinity capture of S-guanylated peptides that were subjected to liquid chromatography-tandem MS (LC-MS/MS); and (ii) two-dimensional (2D)-gel electrophoretic separation of S-guanylated proteins that were subjected to in-gel digestion, followed by LC-MS/MS. We thereby identified certain mitochondrial proteins that are S-guanylated endogenously during immunological stimulation, including mortalin and 60-kDa heat-shock protein (HSP60). Mortalin and HSP60 were recently reported to regulate mitochondrial permeability-transition pore (mPTP) opening, at least partly, by interacting with cyclophilin D, an mPTP component. Our data revealed that immunological stimulation and 8-nitro-cGMP treatment induced mPTP opening in a cyclophilin D-dependent manner. INNOVATION AND CONCLUSION Our S-guanylation proteomic method determined that mitochondrial HSPs may be novel targets for redox modification via protein S-guanylation that participates in mPTP regulation and mitochondrial redox signaling.
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Affiliation(s)
- Md Mizanur Rahaman
- 1 Department of Microbiology, Graduate School of Medical Sciences, Kumamoto University , Kumamoto, Japan
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Fujii S, Akaike T. redox Signaling by 8-nitro-cyclic guanosine monophosphate: nitric oxide- and reactive oxygen species-derived electrophilic messenger. Antioxid Redox Signal 2013; 19:1236-46. [PMID: 23157314 DOI: 10.1089/ars.2012.5067] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
SIGNIFICANCE Emerging evidence has revealed that nitric oxide (NO)- and reactive oxygen species (ROS)-derived electrophiles formed in cells mediate signal transduction for responses to oxidative stress. RECENT ADVANCES The cyclic nucleotide with a nitrated guanine moiety-8-nitroguanosine 3',5'-cyclic monophosphate (8-nitro-cGMP)-first identified in 2007 as a second messenger for NO and ROS-has certain unique properties that its parental cGMP lacks. For example, it can react with particular protein Cys thiols because of its electrophilicity and can cause unique post-translational modifications of redox-sensor proteins such as Keap1 and H-Ras. CRITICAL ISSUES Site-specific S-guanylation of Keap1 at Cys434 induced NO- and ROS-mediated adaptive responses to oxidative stress. H-Ras Cys184 S-guanylation was recently found to be involved in activation of mitogen-activated protein kinase cascades as manifested by cellular senescence and heart failure in mouse cardiac hypertrophy models. The latest finding related to the concept of electrophile-based redox signaling is a potent regulatory function of endogenously produced hydrogen sulfide for redox signaling via 8-nitro-cGMP. FUTURE DIRECTIONS Electrophile modification of 8-nitro-cGMP, as a second messenger for NO and ROS, by hydrogen sulfide (i.e., electrophile sulfhydration) can most likely effect physiological regulation of cellular redox signaling. Continued investigation of the precise function of cellular hydrogen sulfide that may control electrophile-dependent redox cellular signaling, most typically via 8-nitro-cGMP formation, may provide novel insights into the molecular mechanisms of oxidative stress responses, oxidative stress-related pathology and disease control, and development of therapeutics for various diseases.
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Affiliation(s)
- Shigemoto Fujii
- Department of Microbiology, Graduate School of Medical Sciences, Kumamoto University , Kumamoto, Japan
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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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Guoguo S, Akaike T, Tao J, Qi C, Nong Z, Hui L. HGF-mediated inhibition of oxidative stress by 8-nitro-cGMP in high glucose-treated rat mesangial cells. Free Radic Res 2012; 46:1238-48. [PMID: 22690849 DOI: 10.3109/10715762.2012.701292] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Hepatocyte growth factor (HGF) is a potential therapeutic agent for diabetic nephropathy. The mechanisms for the renoprotective effect of HGF have been studied extensively, but antioxidant signalling of HGF in diabetic nephropathy is minimally understood. Our observations indicated that a nitrated guanine nucleotide, 8-nitroguanosine 3'5'-cyclic monophosphate (8-nitro-cGMP) diminished in high glucose (HG)-treated rat mesangial cells (RMC). However, HGF obviously lifted intracellular 8-nitro-cGMP level, which was accompanied by remarkably suppressed oxidative stress as evidenced by decreased reactive oxygen species and malondialdehyde levels and elevated glutathione level. Inhibitor of soluble guanylyl cyclase (sGC) NS-2028 and inhibitor of nitric oxide synthase (NOS) l-NMMA could block increased 8-nitro-cGMP level and repress oxidative stress by HGF. Accordingly, these two inhibitors abrogated HGF-induced nuclear accumulation of NF-E2 related factor 2 (Nrf2) and up-regulation of Nrf2 downstream glutamate-cysteine ligase catalytic subunit (GCLC) expression. In conclusion, HGF ameliorated HG-mediated oxidative stress in RMC at least in part by enhancing nitric oxide and subsequent 8-nitro-cGMP production.
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Affiliation(s)
- Shang Guoguo
- Department of Pathology, Shanghai Medical College, Fudan University, Shanghai, People's Republic of China
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Regulation by mitochondrial superoxide and NADPH oxidase of cellular formation of nitrated cyclic GMP: potential implications for ROS signalling. Biochem J 2012; 441:719-30. [PMID: 21967515 DOI: 10.1042/bj20111130] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
8-Nitro-cGMP (8-nitroguanosine 3',5'-cyclic monophosphate) is a nitrated derivative of cGMP, which can function as a unique electrophilic second messenger involved in regulation of an antioxidant adaptive response in cells. In the present study, we investigated chemical and biochemical regulatory mechanisms involved in 8-nitro-cGMP formation, with particular focus on the roles of ROS (reactive oxygen species). Chemical analyses demonstrated that peroxynitrite-dependent oxidation and myeloperoxidase-dependent oxidation of nitrite in the presence of H2O2 were two major pathways for guanine nucleotide nitration. Among the guanine nucleotides examined, GTP was the most sensitive to peroxynitrite-mediated nitration. Immunocytochemical and tandem mass spectrometric analyses revealed that formation of 8-nitro-cGMP in rat C6 glioma cells stimulated with lipopolysaccharide plus pro-inflammatory cytokines depended on production of both superoxide and H2O2. Using the mitochondria-targeted chemical probe MitoSOX Red, we found that mitochondria-derived superoxide can act as a direct determinant of 8-nitro-cGMP formation. Furthermore, we demonstrated that Nox2 (NADPH oxidase 2)-generated H2O2 regulated mitochondria-derived superoxide production, which suggests the importance of cross-talk between Nox2-dependent H2O2 production and mitochondrial superoxide production. The results of the present study suggest that 8-nitro-cGMP can serve as a unique second messenger that may be implicated in regulating ROS signalling in the presence of NO.
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