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Coletti R, de Lima JBM, Vechiato FMV, de Oliveira FL, Debarba LK, Almeida-Pereira G, Elias LLK, Antunes-Rodrigues J. Nitric oxide acutely modulates hypothalamic and neurohypophyseal carbon monoxide and hydrogen sulphide production to control vasopressin, oxytocin and atrial natriuretic peptide release in rats. J Neuroendocrinol 2019; 31:e12686. [PMID: 30633838 DOI: 10.1111/jne.12686] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/16/2018] [Revised: 01/07/2019] [Accepted: 01/07/2019] [Indexed: 12/11/2022]
Abstract
Nitric oxide (NO) negatively modulates the secretion of vasopressin (AVP), oxytocin (OT) and atrial natriuretic peptide (ANP) induced by the increase in extracellular osmolality, whereas carbon monoxide (CO) and hydrogen sulphide (H2 S) act to potentiate it; however, little information is available for the osmotic challenge model about whether and how such gaseous systems modulate each other. Therefore, using an acute ex vivo model of hypothalamic and neurohypophyseal explants (obtained from male 6/7-week-old Wistar rats) under conditions of extracellular iso- and hypertonicity, we determined the effects of NO (600 μmol L-1 sodium nitroprusside), CO (100 μmol L-1 tricarbonylchloro[glycinato]ruthenium [II]) and H2 S (10 mmol L-1 sodium sulphide) donors and nitric oxide synthase (NOS) (300 μmol L-1 Nω -methyl-l-arginine [LNMMA]), haeme oxygenase (HO) (200 μmol L-1 Zn(II) deuteroporphyrin IX 2,4-bis-ethylene glycol [ZnDPBG]) and cystathionine β-synthase (CBS) (100 μmol L-1 aminooxyacetate [AOA]) inhibitors on the release of hypothalamic ANP and hypothalamic and neurohypophyseal AVP and OT, as well as on the activities of NOS, HO and CBS. LNMMA reversed hyperosmolality-induced NOS activity, and enhanced hormonal release by the hypothalamus and neurohypophysis, in addition to increasing CBS and hypothalamic HO activity. AOA decreased hypothalamic and neurohypophyseal CBS activity and hormonal release, whereas ZnDPBG inhibited HO activity and hypothalamic hormone release; however, in both cases, AOA did not modulate NOS and HO activity and ZnDPBG did not affect NOS and CBS activity. Thus, our data indicate that, although endogenous CO and H2 S positively modulate AVP, OT and ANP release, only NO plays a concomitant role of modulator of hormonal release and CBS activity in the hypothalamus and neurohypophysis and that of HO activity in the hypothalamus during an acute osmotic stimulus, which suggests that NO is a key gaseous controller of the neuroendocrine system.
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Affiliation(s)
- Ricardo Coletti
- Department of Physiology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
| | | | | | | | - Lucas Kniess Debarba
- Department of Physiology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
| | - Gislaine Almeida-Pereira
- Department of Physiology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
| | | | - José Antunes-Rodrigues
- Department of Physiology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
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Pal N, Majumdar A. Transfer of hydrosulfide from thiols to iron(ii): a convenient synthetic route to nonheme diiron(ii)–hydrosulfide complexes. Dalton Trans 2019; 48:5903-5908. [DOI: 10.1039/c8dt04092c] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
The synthesis and reactivity of an unprecedented nonheme diiron(ii)–hydrosulfide complex via Fe(ii) mediated C–S bond cleavage of thiols.
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Affiliation(s)
- Nabhendu Pal
- School of Chemical Sciences
- Indian Association for the Cultivation of Science
- Kolkata 700032
- India
| | - Amit Majumdar
- School of Chemical Sciences
- Indian Association for the Cultivation of Science
- Kolkata 700032
- India
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Yu L, Hu P, Chen Y. Gas-Generating Nanoplatforms: Material Chemistry, Multifunctionality, and Gas Therapy. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2018; 30:e1801964. [PMID: 30066474 DOI: 10.1002/adma.201801964] [Citation(s) in RCA: 186] [Impact Index Per Article: 31.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2018] [Revised: 04/26/2018] [Indexed: 05/16/2023]
Abstract
The fast advances of theranostic nanomedicine enable the rational design and construction of diverse functional nanoplatforms for versatile biomedical applications, among which gas-generating nanoplatforms (GGNs) have emerged very recently as unique theranostic nanoplatforms for broad gas therapies. Here, the recent developments of the rational design and chemical construction of versatile GGNs for efficient gas therapies by either exogenous physical triggers or endogenous disease-environment responsiveness are reviewed. These gases involve some therapeutic gases that can directly change disease status, such as oxygen (O2 ), nitric oxide (NO), carbon monoxide (CO), hydrogen (H2 ), hydrogen sulfide (H2 S) and sulfur dioxide (SO2 ), and other gases such as carbon dioxide (CO2 ), dl-menthol (DLM), and gaseous perfluorocarbon (PFC) for supplementary assistance of the theranostic process. Abundant nanocarriers have been adopted for gas delivery into lesions, including poly(d,l-lactic-co-glycolic acid), micelles, silica/mesoporous silica, organosilica, MnO2 , graphene, Bi2 Se3 , upconversion nanoparticles, CaCO3 , etc. Especially, these GGNs have been successfully developed for versatile biomedical applications, including diagnostic imaging and therapeutic use. The biosafety issue, challenges faced, and future developments on the rational construction of GGNs are also discussed for further promotion of their clinical translation to benefit patients.
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Affiliation(s)
- Luodan Yu
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050, P. R. China
- University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Ping Hu
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050, P. R. China
| | - Yu Chen
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050, P. R. China
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Guan P, Lin XM, Yang SC, Guo YJ, Li WY, Zhao YS, Yu FY, Sun ZM, An JR, Ji ES. Hydrogen gas reduces chronic intermittent hypoxia-induced hypertension by inhibiting sympathetic nerve activity and increasing vasodilator responses via the antioxidation. J Cell Biochem 2018; 120:3998-4008. [PMID: 30259991 DOI: 10.1002/jcb.27684] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2018] [Accepted: 08/27/2018] [Indexed: 12/26/2022]
Abstract
Molecular hydrogen is reported to be used medically to ameliorate various systemic pathological conditions. This study aimed to investigate the effect of hydrogen (H2 ) gas on hypertension induced by intermittent hypoxia in rats. The adult rats were exposed to chronic intermittent hypoxia (CIH) 8 hours/day for 5 weeks and/or H 2 gas 2 hours/day. We found that the systolic and diastolic blood pressure (BP) increased significantly in rats exposed to intermittent hypoxia, both of which were markedly attenuated after H treatment. Furthermore, intermittent hypoxia exposure elevated renal sympathetic nerve activity, consistent with plasma norepinephrine. Additionally, H 2 gas significantly improved CIH-induced abnormal vascular relaxation. Nevertheless, inhalation of H 2 gas alone did not cause such changes. Moreover, H 2 gas-treated rats exposed to CIH showed a significant reduction in 8-hydroxy-2 deoxyguanosine content and increases in superoxide dismutase activity, indicating improved oxidative stress. Taken together, these results indicate that H 2 gas has significant effects on the reduction of BP without any side effects. Mechanistically, inhibition of sympathetic activity and reduction of systemic vascular resistance may participate in this process via the antioxidant activity of H 2 .
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Affiliation(s)
- Peng Guan
- Department of Physiology, Hebei University of Chinese Medicine, Shijiazhuang, China
| | - Xiao-Meng Lin
- Department of Breast Surgery, Affiliated Hospital of Hebei University, Baoding, China
| | - Sheng-Chang Yang
- Department of Physiology, Hebei University of Chinese Medicine, Shijiazhuang, China
| | - Ya-Jing Guo
- Scientific Research Center, Hebei University of Chinese Medicine, Shijiazhuang, China
| | - Wen-Ya Li
- Department of Physiology, Hebei University of Chinese Medicine, Shijiazhuang, China
| | - Ya-Shuo Zhao
- Scientific Research Center, Hebei University of Chinese Medicine, Shijiazhuang, China
| | - Fu-Yang Yu
- Department of Physiology, Hebei University of Chinese Medicine, Shijiazhuang, China
| | - Zhi-Min Sun
- Department of Physiology, Hebei University of Chinese Medicine, Shijiazhuang, China
| | - Ji-Ren An
- Department of Physiology, Hebei University of Chinese Medicine, Shijiazhuang, China
| | - En-Sheng Ji
- Department of Physiology, Hebei University of Chinese Medicine, Shijiazhuang, China
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55
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Lee SR. Cellular toxicity of zinc can be attenuated by sodium hydrogen sulfide in neuronal SH-SY5Y cell. Mol Cell Toxicol 2018. [DOI: 10.1007/s13273-018-0047-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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Matsui T, Sugiyama R, Sakanashi K, Tamura Y, Iida M, Nambu Y, Higuchi T, Suematsu M, Ikeda-Saito M. Hydrogen sulfide bypasses the rate-limiting oxygen activation of heme oxygenase. J Biol Chem 2018; 293:16931-16939. [PMID: 30237172 DOI: 10.1074/jbc.ra118.004641] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2018] [Revised: 08/29/2018] [Indexed: 12/31/2022] Open
Abstract
Discovery of unidentified protein functions is of biological importance because it often provides new paradigms for many research areas. Mammalian heme oxygenase (HO) enzyme catalyzes the O2-dependent degradation of heme into carbon monoxide (CO), iron, and biliverdin through numerous reaction intermediates. Here, we report that H2S, a gaseous signaling molecule, is part of a novel reaction pathway that drastically alters HO's products, reaction mechanism, and catalytic properties. Our prediction of this interplay is based on the unique reactivity of H2S with one of the HO intermediates. We found that in the presence of H2S, HO produces new linear tetrapyrroles, which we identified as isomers of sulfur-containing biliverdin (SBV), and that only H2S, but not GSH, cysteine, and polysulfides, induces SBV formation. As BV is converted to bilirubin (BR), SBV is enzymatically reduced to sulfur-containing bilirubin (SBR), which shares similar properties such as antioxidative effects with normal BR. SBR was detected in culture media of mouse macrophages, confirming the existence of this H2S-induced reaction in mammalian cells. H2S reacted specifically with a ferric verdoheme intermediate of HO, and verdoheme cleavage proceeded through an O2-independent hydrolysis-like mechanism. This change in activation mode diminished O2 dependence of the overall HO activity, circumventing the rate-limiting O2 activation of HO. We propose that H2S could largely affect O2 sensing by mammalian HO, which is supposed to relay hypoxic signals by decreasing CO output to regulate cellular functions. Moreover, the novel H2S-induced reaction identified here helps sustain HO's heme-degrading and antioxidant-generating capacity under highly hypoxic conditions.
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Affiliation(s)
- Toshitaka Matsui
- From the Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Katahira, Aoba, Sendai 980-8577, Japan,
| | - Ryota Sugiyama
- From the Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Katahira, Aoba, Sendai 980-8577, Japan
| | - Kenta Sakanashi
- From the Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Katahira, Aoba, Sendai 980-8577, Japan
| | - Yoko Tamura
- From the Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Katahira, Aoba, Sendai 980-8577, Japan
| | - Masaki Iida
- From the Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Katahira, Aoba, Sendai 980-8577, Japan
| | - Yukari Nambu
- From the Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Katahira, Aoba, Sendai 980-8577, Japan
| | - Tsunehiko Higuchi
- Graduate School of Pharmaceutical Sciences, Nagoya City University, Tanabe-dori, Mizuho, Nagoya 467-8603, Japan, and
| | - Makoto Suematsu
- Department of Biochemistry, Keio University School of Medicine, Shinano-machi, Shinjyuku, Tokyo 160-8582, Japan
| | - Masao Ikeda-Saito
- From the Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Katahira, Aoba, Sendai 980-8577, Japan,
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Li N, Than A, Chen J, Xi F, Liu J, Chen P. Graphene quantum dots based fluorescence turn-on nanoprobe for highly sensitive and selective imaging of hydrogen sulfide in living cells. Biomater Sci 2018; 6:779-784. [PMID: 29134987 DOI: 10.1039/c7bm00818j] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Hydrogen sulfide (H2S), being an important gaseous signaling molecule, has been gaining increasing attention for its involvement in a wide range of physiological processes. Herein, we developed a novel fluorescence turn-on nanoprobe for selective and sensitive detection of H2S based on graphene quantum dots (GQDs) conjugated with (2,4-dinitrophenoxy)tyrosine (DNPTYR). Taking advantage of its high fluorescence quantum yield, biocompatibility, photostability, and ease to be uptaken by cells, the GQD-based fluorescence probe was further employed for real-time monitoring of the triggered dynamic change of the intracellular H2S level in live cells.
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Affiliation(s)
- Nan Li
- Key Laboratory of Biomaterials of Guangdong Higher Education Institutes, Department of Biomedical Engineering, Jinan University, Guangzhou 510632, China
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58
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Nakagawa H. Photo-Controlled Release of Small Signaling Molecules to Induce Biological Responses. CHEM REC 2018; 18:1708-1716. [PMID: 30040190 DOI: 10.1002/tcr.201800035] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2018] [Accepted: 07/05/2018] [Indexed: 01/01/2023]
Abstract
Chemical modifications of proteins or cofactors, including acetylation and oxidation of amino acid residues of various signal proteins, whether transient or successive, play key roles in modulating biological functions. Small molecules that have signaling functions in biological systems through the chemical modification of proteins include nitric oxide (NO), hydrogen peroxide, carbon monoxide, and hydrogen sulfide. To investigate the pathophysiological roles of these molecules, caged compounds have been developed that allow precise spatiotemporal control of the release of these species in response to photoirradiation in the ultraviolet or visible region. For example, photocontrollable NO releasers can regulate the responses of blood vessels in vivo and ex vivo. In addition, photocontrollable (caged) inhibitors of histone deacetylase (HDAC) can be used to regulate HDAC activity in response to photoirradiation. Such photocontrol technology has provided chemical tools for a variety of biological studies, including investigations of epigenetic mechanisms.
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Affiliation(s)
- Hidehiko Nakagawa
- Graduate School of Pharmaceutical Sciences, Nagoya City University, 3-1, Tanabe-dori, Mizuho-ku, Nagoya, 467-8603, Japan
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Ueha T, Oe K, Miwa M, Hasegawa T, Koh A, Nishimoto H, Lee SY, Niikura T, Kurosaka M, Kuroda R, Sakai Y. Increase in carbon dioxide accelerates the performance of endurance exercise in rats. J Physiol Sci 2018; 68:463-470. [PMID: 28601950 PMCID: PMC10717130 DOI: 10.1007/s12576-017-0548-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2016] [Accepted: 05/31/2017] [Indexed: 01/15/2023]
Abstract
Endurance exercise generates CO2 via aerobic metabolism; however, its role remains unclear. Exogenous CO2 by transcutaneous delivery promotes muscle fibre-type switching to increase endurance power in skeletal muscles. Here we determined the performance of rats running in activity wheels with/without transcutaneous CO2 exposure to clarify its effect on endurance exercise and recovery from muscle fatigue. Rats were randomised to control, training and CO2 groups. Endurance exercise included activity-wheel running with/without transcutaneous CO2 delivery. Running performance was measured after exercise initiation. We also analysed changes in muscle weight and muscle fibres in the tibialis anterior muscle. Running performance improved over the treatment period in the CO2 group, with a concomitant switch in muscle fibres to slow-type. The mitochondrial DNA content and capillary density in the CO2 group increased. CO2 was beneficial for performance and muscle development during endurance exercise: it may enhance recovery from fatigue and support anabolic metabolism in skeletal muscles.
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Affiliation(s)
- Takeshi Ueha
- Division of Rehabilitation Medicine, Kobe University Graduate School of Medicine, 7-5-1, Kusunoki-cho, Chuo-ku, Kobe, 650-0017, Japan
- NeoChemir Inc, Kobe, Japan
| | - Keisuke Oe
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
- Department of Orthopaedic Surgery, Hyogo Prefectural Awaji Hospital, Awaji, Japan
| | - Masahiko Miwa
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Takumi Hasegawa
- Department of Oral and Maxillofacial Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Akihiro Koh
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Hanako Nishimoto
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Sang Yang Lee
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Takahiro Niikura
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Masahiro Kurosaka
- Division of Rehabilitation Medicine, Kobe University Graduate School of Medicine, 7-5-1, Kusunoki-cho, Chuo-ku, Kobe, 650-0017, Japan
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Ryosuke Kuroda
- Division of Rehabilitation Medicine, Kobe University Graduate School of Medicine, 7-5-1, Kusunoki-cho, Chuo-ku, Kobe, 650-0017, Japan
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Yoshitada Sakai
- Division of Rehabilitation Medicine, Kobe University Graduate School of Medicine, 7-5-1, Kusunoki-cho, Chuo-ku, Kobe, 650-0017, Japan.
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Hydrogen Sulfide Biochemistry and Interplay with Other Gaseous Mediators in Mammalian Physiology. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2018; 2018:6290931. [PMID: 30050658 PMCID: PMC6040266 DOI: 10.1155/2018/6290931] [Citation(s) in RCA: 83] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/01/2017] [Accepted: 03/13/2018] [Indexed: 01/06/2023]
Abstract
Hydrogen sulfide (H2S) has emerged as a relevant signaling molecule in physiology, taking its seat as a bona fide gasotransmitter akin to nitric oxide (NO) and carbon monoxide (CO). After being merely regarded as a toxic poisonous molecule, it is now recognized that mammalian cells are equipped with sophisticated enzymatic systems for H2S production and breakdown. The signaling role of H2S is mainly related to its ability to modify different protein targets, particularly by promoting persulfidation of protein cysteine residues and by interacting with metal centers, mostly hemes. H2S has been shown to regulate a myriad of cellular processes with multiple physiological consequences. As such, dysfunctional H2S metabolism is increasingly implicated in different pathologies, from cardiovascular and neurodegenerative diseases to cancer. As a highly diffusible reactive species, the intra- and extracellular levels of H2S have to be kept under tight control and, accordingly, regulation of H2S metabolism occurs at different levels. Interestingly, even though H2S, NO, and CO have similar modes of action and parallel regulatory targets or precisely because of that, there is increasing evidence of a crosstalk between the three gasotransmitters. Herein are reviewed the biochemistry, metabolism, and signaling function of hydrogen sulfide, as well as its interplay with the other gasotransmitters, NO and CO.
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Kuang Q, Xue N, Chen J, Shen Z, Cui X, Fang Y, Ding X. Low Plasma Hydrogen Sulfide Is Associated with Impaired Renal Function and Cardiac Dysfunction. Am J Nephrol 2018; 47:361-371. [PMID: 29779029 DOI: 10.1159/000489606] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2018] [Accepted: 04/24/2018] [Indexed: 12/11/2022]
Abstract
BACKGROUND Chronic kidney disease (CKD) has been proposed to associate with decreased hydrogen sulfide (H2S) level. Nevertheless, the role of H2S in the pathogenesis of CKD has not been fully investigated. Our study aimed to investigate the plasma level of endogenous H2S in patients with different stages of CKD, and to identify the role of H2S in the progression of CKD and its relationship with cardiovascular diseases. METHODS A total of 157 non-dialysis CKD patients were recruited in our study, with 37 age- and sex-matched healthy individuals as control. Plasma concentration of H2S was measured with spectrophotometry. Sulfhemoglobin, the integration of H2S and hemoglobin, was characterized and measured by dual wavelength spectrophotometry. Serum levels of homocysteine (Hcy), cardiac troponin T (cTnT), and N-terminal pro B type natriuretic peptide were measured using automated analyzers. Conventional transthoracic echocardiography was performed and left ventricular ejection fraction (LVEF) was analyzed as a sensitive parameter of cardiac dysfunction. RESULTS The plasma H2S level (μmol/L) in CKD patients was significantly lower than those in healthy controls (7.32 ± 4.02 vs. 14.11 ± 5.24 μmol/L, p < 0.01). Plasma H2S level was positively associated with estimated glomerular filtration rate (eGFR; ρ = 0.577, p < 0.01) and negatively associated with plasma indoxyl sulfate concentration (ρ = -0.554, p < 0.01). The mRNA levels of cystathionine β-synthase and cystathionine γ-lyase, 2 catalytic enzymes of H2S formation, were significantly lower in blood mononuclear cells of CKD patients with respect to controls; however, the mRNA level of 3-mercaptopyruvate sulfurtransferase, as another H2S-producing enzyme, was significantly higher in CKD patients. The serum concentration of Hcy, acting as the substrate of H2S synthetase, was higher in the CKD group (p < 0.01). Specifically, the content of serum Hcy in CKD stages 3-5 patients was significantly higher than that in CKD stages 1-2, indicating an increasing trend of serum Hcy with the decline of renal function. Examination of ultrasonic cardiogram revealed a negative -correlation between plasma H2S level and LVEF (ρ = -0.204, p < 0.05) in CKD patients. The H2S level also correlated negatively with cTnT concentration (ρ = -0.249, p < 0.01). CONCLUSIONS Plasma H2S level decreased with the decline of eGFR, which may contribute to the cardiac dysfunction in CKD -patients.
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Affiliation(s)
- Qing Kuang
- Department of Nephrology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Ning Xue
- Department of Nephrology, Zhongshan Hospital, Fudan University, Shanghai, China
- Shanghai Medical Center of Kidney, Shanghai, China
- Shanghai Institute of Kidney and Dialysis, Shanghai, China
| | - Jing Chen
- Department of Nephrology, Zhongshan Hospital, Fudan University, Shanghai, China
- Shanghai Medical Center of Kidney, Shanghai, China
- Shanghai Institute of Kidney and Dialysis, Shanghai, China
- Key Laboratory of Kidney and Blood Purification, Shanghai, China
| | - Ziyan Shen
- Department of Nephrology, Zhongshan Hospital, Fudan University, Shanghai, China
- Shanghai Medical Center of Kidney, Shanghai, China
- Shanghai Institute of Kidney and Dialysis, Shanghai, China
| | - Xiaomeng Cui
- Department of Nephrology, Zhongshan Hospital, Fudan University, Shanghai, China
- Shanghai Medical Center of Kidney, Shanghai, China
- Shanghai Institute of Kidney and Dialysis, Shanghai, China
- Key Laboratory of Kidney and Blood Purification, Shanghai, China
| | - Yi Fang
- Department of Nephrology, Zhongshan Hospital, Fudan University, Shanghai, China,
- Shanghai Medical Center of Kidney, Shanghai, China,
- Shanghai Institute of Kidney and Dialysis, Shanghai, China,
- Key Laboratory of Kidney and Blood Purification, Shanghai, China,
| | - Xiaoqiang Ding
- Department of Nephrology, Zhongshan Hospital, Fudan University, Shanghai, China
- Shanghai Medical Center of Kidney, Shanghai, China
- Shanghai Institute of Kidney and Dialysis, Shanghai, China
- Key Laboratory of Kidney and Blood Purification, Shanghai, China
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Sousa FM, Pereira JG, Marreiros BC, Pereira MM. Taxonomic distribution, structure/function relationship and metabolic context of the two families of sulfide dehydrogenases: SQR and FCSD. BIOCHIMICA ET BIOPHYSICA ACTA-BIOENERGETICS 2018; 1859:742-753. [PMID: 29684324 DOI: 10.1016/j.bbabio.2018.04.004] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 02/02/2018] [Revised: 03/28/2018] [Accepted: 04/15/2018] [Indexed: 12/26/2022]
Abstract
Hydrogen sulfide (H2S) is a versatile molecule with different functions in living organisms: it can work as a metabolite of sulfur and energetic metabolism or as a signaling molecule in higher Eukaryotes. H2S is also highly toxic since it is able to inhibit heme cooper oxygen reductases, preventing oxidative phosphorylation. Due to the fact that it can both inhibit and feed the respiratory chain, the immediate role of H2S on energy metabolism crucially relies on its bioavailability, meaning that studying the central players involved in the H2S homeostasis is key for understanding sulfide metabolism. Two different enzymes with sulfide oxidation activity (sulfide dehydrogenases) are known: flavocytochrome c sulfide dehydrogenase (FCSD), a sulfide:cytochrome c oxidoreductase; and sulfide:quinone oxidoreductase (SQR). In this work we performed a thorough bioinformatic study of SQRs and FCSDs and integrated all published data. We systematized several properties of these proteins: (i) nature of flavin binding, (ii) capping loops and (iii) presence of key amino acid residues. We also propose an update to the SQR classification system and discuss the role of these proteins in sulfur metabolism.
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Affiliation(s)
- Filipe M Sousa
- Instituto de Tecnologia Química e Biológica - António Xavier, Universidade Nova de Lisboa, Av. da Republica EAN, 2780-157 Oeiras, Portugal
| | - Juliana G Pereira
- Instituto de Tecnologia Química e Biológica - António Xavier, Universidade Nova de Lisboa, Av. da Republica EAN, 2780-157 Oeiras, Portugal
| | - Bruno C Marreiros
- Instituto de Tecnologia Química e Biológica - António Xavier, Universidade Nova de Lisboa, Av. da Republica EAN, 2780-157 Oeiras, Portugal
| | - Manuela M Pereira
- Instituto de Tecnologia Química e Biológica - António Xavier, Universidade Nova de Lisboa, Av. da Republica EAN, 2780-157 Oeiras, Portugal; University of Lisbon, Faculty of Sciences, BioISI - Biosystems & Integrative Sciences Institute, Campo Grande, C8, 1749-016 Lisboa, Portugal.
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Abstract
Preeclampsia (PE) is one of the leading causes of maternal morbidity and mortality worldwide. This disease is believed to occur in two stages with placental dysfunction in early pregnancy leading to maternal clinical findings after 20 weeks of gestation, as consequence of systemic inflammation, oxidative stress, and endothelial dysfunction. Much evidence suggests that PE women display an overshooting inflammatory response throughout pregnancy due to an unbalanced regulation of innate and adaptive immune responses. Recently, it has been suggested that dysregulation of endogenous protective pathways might be associated with PE etiopathogenesis. Resolution of inflammation is an active process coordinated by mediators from diverse nature that regulate key cellular events to restore tissue homeostasis. Inadequate or insufficient resolution of inflammation is believed to play an important role in the development of chronic inflammatory diseases, like PE. In this narrative review, we discuss possible pro-resolution pathways that might be compromised in PE women, which could be targets to novel therapeutic strategies in this disease.
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Kabe Y, Handa H, Suematsu M. Function and structural regulation of the carbon monoxide (CO)-responsive membrane protein PGRMC1. J Clin Biochem Nutr 2018; 63:12-17. [PMID: 30087538 PMCID: PMC6064819 DOI: 10.3164/jcbn.17-132] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2017] [Accepted: 01/04/2018] [Indexed: 01/29/2023] Open
Abstract
Progesterone receptor membrane associated component 1 is a multifunctional heme-binding protein that plays a role in several biological processes such as tumor progression, metabolic regulation, and viability control of nerve cells. Notably, progesterone receptor membrane associated component 1 is highly expressed in various types of cancer cells, and facilitates cancer proliferation and chemoresistance. Recently, progesterone receptor membrane associated component 1 structure has been explored by X-ray crystallographic analysis. Interestingly, whereas apo- progesterone receptor membrane associated component 1 exists as a monomer, the heme-bound progesterone receptor membrane associated component 1 converts into a stable dimer by forming a unique heme-heme stacking structure, leading to activation of epidermal growth factor receptor signaling and chemoresistance in cancer cells. Furthermore, the gas mediator carbon monoxide inhibits progesterone receptor membrane associated component 1-mediated activation in cancer cells by dissociating the heme-stacking dimer of progesterone receptor membrane associated component 1. The dynamic structural regulation of progesterone receptor membrane associated component 1 will provide new insights for understanding the mechanisms underlying its various functions.
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Affiliation(s)
- Yasuaki Kabe
- Department of Biochemistry, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo 160-8582, Japan.,Core Research for Evolutional Science and Technology (CREST), Japan Agency for Medical Research and Development (AMED), 20F Yomiuri Shimbun Bldg, 1-7-1 Otemachi, Chiyoda-ku, Tokyo 100-0004, Japan
| | - Hiroshi Handa
- Department of Nanoparticle Translational Research, Tokyo Medical University, 6-1-1 Shinjuku, Shinjuku-ku, Tokyo 160-8402, Japan
| | - Makoto Suematsu
- Department of Biochemistry, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo 160-8582, Japan
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65
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Wahafu W, Gai J, Song L, Ping H, Wang M, Yang F, Niu Y, Xing N. Increased H 2S and its synthases in urothelial cell carcinoma of the bladder, and enhanced cisplatin-induced apoptosis following H 2S inhibition in EJ cells. Oncol Lett 2018; 15:8484-8490. [PMID: 29928321 PMCID: PMC6004664 DOI: 10.3892/ol.2018.8373] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2016] [Accepted: 02/15/2018] [Indexed: 01/02/2023] Open
Abstract
H2S, synthesized by cystathionine β-synthase (CBS), cystathionine γ-lyase (CSE) and 3-mercaptopyruvate sulfurtransferase (MPST), functions as a signalling molecule in mammalian cells. H2S serves complex functions in physiological and pathological processes, including in bladder cancer. In the present study, H2S production, the expression of the associated enzymes and the effect of H2S on human urothelial cell carcinoma of the bladder (UCB) tissue and cell lines were evaluated, and whether decreasing H2S levels influenced cell viability and tumour growth following treatment with cisplatin (CDDP) was assessed in UCB cells in vitro and in vivo. H2S production and the expression of CBS, CSE and MPST in bladder tissue specimens and the UCB cell lines 5637, EJ and UM-UC-3 were analysed using a sulfur-sensitive electrode and western blotting. UCB cells were subjected to different treatments, and viability and protein expression were determined. H2S production was inhibited to examine its influence on EJ cell tumour growth following CDDP treatment in vivo. It was identified that CBS, CSE and MPST protein were up-regulated in UCB tissues and cells. The H2S production and enzyme expression levels were the highest in UCB tissue and EJ cells. The inhibition of endogenous H2S biosynthesis decreased EJ cell viability and tumour growth in response to CDDP treatment. H2S levels and the associated biosynthetic enzymes were increased in human UCB tissue and cells compared with adjacent tissue and normal cells, which may have increased the resistance to CDDP-induced apoptosis in UCB. Therefore, H2S and its production may be an alternative therapeutic target for UCB.
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Affiliation(s)
- Wasilijiang Wahafu
- Department of Urology, Beijing Chao Yang Hospital, Beijing 100020, P.R. China
| | - Junwei Gai
- Department of Urology, Tianjin First Central Hospital, Tianjin 300191, P.R. China
| | - Liming Song
- Department of Urology, Beijing Chao Yang Hospital, Beijing 100020, P.R. China
| | - Hao Ping
- Department of Urology, Beijing Chao Yang Hospital, Beijing 100020, P.R. China
| | - Mingshuai Wang
- Department of Urology, Beijing Chao Yang Hospital, Beijing 100020, P.R. China
| | - Feiya Yang
- Department of Urology, Beijing Chao Yang Hospital, Beijing 100020, P.R. China
| | - Yinong Niu
- Department of Urology, Beijing Chao Yang Hospital, Beijing 100020, P.R. China
| | - Nianzeng Xing
- Department of Urology, Beijing Chao Yang Hospital, Beijing 100020, P.R. China
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66
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Panthi S, Manandhar S, Gautam K. Hydrogen sulfide, nitric oxide, and neurodegenerative disorders. Transl Neurodegener 2018; 7:3. [PMID: 29456842 PMCID: PMC5810063 DOI: 10.1186/s40035-018-0108-x] [Citation(s) in RCA: 55] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2017] [Accepted: 01/31/2018] [Indexed: 12/12/2022] Open
Abstract
Hydrogen Sulfide (H2S) and Nitric Oxide (NO) have become recognized as important gaseous signaling molecules with enormous pharmacological effects, therapeutic value, and central physiological roles. NO is one of the most important regulators of the pathophysiological condition in central nervous system (CNS). It is critical in the various functioning of the brain; however, beyond certain concentration/level, it is toxic. H2S was regarded as toxic gas with the smell like rotten egg. But, it is now regarded as emerging neuroprotectant and neuromodulator. Recently, the use of donors and inhibitors of these signaling molecules have helped us to identify their accurate and precise biological effects. The most abundant neurotransmitter of CNS (glutamate) is the initiator of the reaction that forms NO, and H2S is highly expressed in brain. These molecules are shedding light on the pathogenesis of various neurological disorders. This review is mainly focused on the importance of H2S and NO for normal functioning of CNS.
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Affiliation(s)
- Sandesh Panthi
- Otago School of Biomedical Sciences, University of Otago, Dunedin, New Zealand
| | | | - Kripa Gautam
- China Medical University, Shenyang, People’s Republic of China
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67
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Lábas A, Menyhárd DK, Harvey JN, Oláh J. First Principles Calculation of the Reaction Rates for Ligand Binding to Myoglobin: The Cases of NO and CO. Chemistry 2018; 24:5350-5358. [PMID: 29285802 DOI: 10.1002/chem.201704867] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2017] [Indexed: 12/12/2022]
Abstract
Ligand binding by proteins is among the most fundamental processes in nature. Among these processes the binding of small gas molecules, such as O2 , CO and NO to heme proteins has traditionally received vivid interest, which was further boosted by their recently recognized significant role in gas sensing in the body. At the heart of the binding of these ligands to the heme group is the spinforbidden reaction between high-spin iron(II) and the ligand yielding a low-spin adduct. We use computational means to address the complete mechanism of CO and NO binding by myoglobin. Considering that it involves several steps occurring on different time scales, molecular dynamics simulations were performed to address the diffusion of the ligand through the enzyme, and DFT calculations in combination with statistical rate calculation to investigate the spin-forbidden reaction. The calculations yielded rate constants in qualitative agreement with experiments and revealed that the bottleneck of NO and CO binding is different; for NO, diffusion was found to be rate-limiting, whereas for CO, the spin-forbidden step is the slowest.
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Affiliation(s)
- Anikó Lábas
- Department of Inorganic Chemistry, Budapest University of Technology and Economics, H-1111, Budapest, Szent Gellért tér 4., Hungary
| | - Dóra K Menyhárd
- MTA-ELTE Protein Modelling Research Group, H-1117, Budapest, Pázmány Péter st. 1/A, Hungary
| | - Jeremy N Harvey
- Department of Chemistry, KU Leuven, B-3001, Leuven Celestijnenlaan 200F- box 2404, Belgium
| | - Julianna Oláh
- Department of Inorganic Chemistry, Budapest University of Technology and Economics, H-1111, Budapest, Szent Gellért tér 4., Hungary
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68
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Bankhele P, Salvi A, Jamil J, Njie-Mbye F, Ohia S, Opere CA. Comparative Effects of Hydrogen Sulfide-Releasing Compounds on [ 3H]D-Aspartate Release from Bovine Isolated Retinae. Neurochem Res 2018; 43:692-701. [PMID: 29353375 DOI: 10.1007/s11064-018-2471-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2017] [Revised: 12/20/2017] [Accepted: 01/08/2018] [Indexed: 12/31/2022]
Abstract
We investigated the pharmacological actions of a slow-releasing H2S donor, GYY 4137; a substrate for the biosynthesis of H2S, L-cysteine and its precursor, N-acetylcysteine on potassium (K+; 50 mM)-evoked [3H]D-aspartate release from bovine isolated retinae using the Superfusion Method. GYY 4137 (10 nM-10 µM), L-cysteine (100 nM-10 µM) and N-acetylcysteine (10 µM-1 mM) elicited a concentration-dependent decrease in K+-evoked [3H]D-aspartate release from isolated bovine retinae without affecting basal tritium efflux. At equimolar concentration of 10 µM, the rank order of activity was as follows: L-cysteine > GYY 4137 > N-acetylcysteine. A dual inhibitor of the biosynthetic enzymes for H2S, cystathionine β-synthase (CBS) and cystathionine γ-lyase (CSE), amino-oxyacetic acid (AOA; 3 mM) reversed the inhibitory responses caused by GYY 4137, L-cysteine and N-acetylcysteine on K+-evoked [3H]D-aspartate release. Glibenclamide (300 µM), an inhibitor of KATP channels blocked the inhibitory action of GYY 4137 and L-cysteine but not that elicited by N-acetylcysteine on K+-induced [3H]D-aspartate release. The inhibitory effect of GYY 4137 and L-cysteine on K+-evoked [3H]D-aspartate release was reversed by the non-specific inhibitor of nitric oxide synthase (NOS), L-NAME (300 µM). Furthermore, a specific inhibitor of inducible NOS (iNOS), aminoguanidine (10 µM) blocked the inhibitory action of L-cysteine on K+-evoked [3H]D-aspartate release. We conclude that both donors and substrates for H2S production can inhibit amino acid neurotransmission in bovine isolated retinae, an effect that is dependent, at least in part, upon the intramural biosynthesis of this gas, and on the activity of KATP channels and NO synthase.
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Affiliation(s)
- Pratik Bankhele
- Department of Pharmacy Sciences, School of Pharmacy and Health Professions, Creighton University, 2500 California Plaza, Omaha, NE, 68178, USA
| | - Ankita Salvi
- Department of Pharmacy Sciences, School of Pharmacy and Health Professions, Creighton University, 2500 California Plaza, Omaha, NE, 68178, USA
| | - Jamal Jamil
- Department of Pharmacy Sciences, School of Pharmacy and Health Professions, Creighton University, 2500 California Plaza, Omaha, NE, 68178, USA
| | - Fatou Njie-Mbye
- Department of Pharmaceutical & Environmental Health Sciences, College of Pharmacy & Health Sciences, Texas Southern University, 3100 Cleburne Street, Houston, TX, 77004, USA
| | - Sunny Ohia
- Department of Pharmaceutical & Environmental Health Sciences, College of Pharmacy & Health Sciences, Texas Southern University, 3100 Cleburne Street, Houston, TX, 77004, USA
| | - Catherine A Opere
- Department of Pharmacy Sciences, School of Pharmacy and Health Professions, Creighton University, 2500 California Plaza, Omaha, NE, 68178, USA.
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69
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Lee SR, Nilius B, Han J. Gaseous Signaling Molecules in Cardiovascular Function: From Mechanisms to Clinical Translation. Rev Physiol Biochem Pharmacol 2018; 174:81-156. [PMID: 29372329 DOI: 10.1007/112_2017_7] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Carbon monoxide (CO), hydrogen sulfide (H2S), and nitric oxide (NO) constitute endogenous gaseous molecules produced by specific enzymes. These gases are chemically simple, but exert multiple effects and act through shared molecular targets to control both physiology and pathophysiology in the cardiovascular system (CVS). The gases act via direct and/or indirect interactions with each other in proteins such as heme-containing enzymes, the mitochondrial respiratory complex, and ion channels, among others. Studies of the major impacts of CO, H2S, and NO on the CVS have revealed their involvement in controlling blood pressure and in reducing cardiac reperfusion injuries, although their functional roles are not limited to these conditions. In this review, the basic aspects of CO, H2S, and NO, including their production and effects on enzymes, mitochondrial respiration and biogenesis, and ion channels are briefly addressed to provide insight into their biology with respect to the CVS. Finally, potential therapeutic applications of CO, H2S, and NO with the CVS are addressed, based on the use of exogenous donors and different types of delivery systems.
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Affiliation(s)
- Sung Ryul Lee
- Department of Convergence Biomedical Science, Cardiovascular and Metabolic Disease Center, College of Medicine, Inje University, Busan, Republic of Korea
| | - Bernd Nilius
- Laboratory of Ion Channel Research, Department of Cellular and Molecular Medicine, KU Leuven, Leuven, Belgium
| | - Jin Han
- National Research Laboratory for Mitochondrial Signaling, Department of Physiology, Department of Health Sciences and Technology, BK21 Plus Project Team, Cardiovascular and Metabolic Disease Center, Inje University, Busan, Republic of Korea.
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70
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Perridon BW, Leuvenink HGD, Hillebrands JL, van Goor H, Bos EM. The role of hydrogen sulfide in aging and age-related pathologies. Aging (Albany NY) 2017; 8:2264-2289. [PMID: 27683311 PMCID: PMC5115888 DOI: 10.18632/aging.101026] [Citation(s) in RCA: 56] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2016] [Accepted: 09/13/2016] [Indexed: 12/14/2022]
Abstract
When humans grow older, they experience inevitable and progressive loss of physiological function, ultimately leading to death. Research on aging largely focuses on the identification of mechanisms involved in the aging process. Several proposed aging theories were recently combined as the 'hallmarks of aging'. These hallmarks describe (patho-)physiological processes that together, when disrupted, determine the aging phenotype. Sustaining evidence shows a potential role for hydrogen sulfide (H2S) in the regulation of aging. Nowadays, H2S is acknowledged as an endogenously produced signaling molecule with various (patho-) physiological effects. H2S is involved in several diseases including pathologies related to aging. In this review, the known, assumed and hypothetical effects of hydrogen sulfide on the aging process will be discussed by reviewing its actions on the hallmarks of aging and on several age-related pathologies.
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Affiliation(s)
- Bernard W Perridon
- Department of Pathology and Medical Biology, University Medical Center Groningen, the Netherlands
| | | | - Jan-Luuk Hillebrands
- Department of Pathology and Medical Biology, University Medical Center Groningen, the Netherlands
| | - Harry van Goor
- Department of Pathology and Medical Biology, University Medical Center Groningen, the Netherlands
| | - Eelke M Bos
- Department of Pathology and Medical Biology, University Medical Center Groningen, the Netherlands.,Department of Neurosurgery, Erasmus Medical Center Rotterdam, the Netherlands
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71
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Abstract
Cytochrome bd is a unique prokaryotic respiratory terminal oxidase that does not belong to the extensively investigated family of haem-copper oxidases (HCOs). The enzyme catalyses the four-electron reduction of O2 to 2H2O, using quinols as physiological reducing substrates. The reaction is electrogenic and cytochrome bd therefore sustains bacterial energy metabolism by contributing to maintain the transmembrane proton motive force required for ATP synthesis. As compared to HCOs, cytochrome bd displays several distinctive features in terms of (i) metal composition (it lacks Cu and harbours a d-type haem in addition to two haems b), (ii) overall three-dimensional structure, that only recently has been solved, and arrangement of the redox cofactors, (iii) lesser energetic efficiency (it is not a proton pump), (iv) higher O2 affinity, (v) higher resistance to inhibitors such as cyanide, nitric oxide (NO) and hydrogen sulphide (H2S) and (vi) ability to efficiently metabolize potentially toxic reactive oxygen and nitrogen species like hydrogen peroxide (H2O2) and peroxynitrite (ONOO-). Compelling evidence suggests that, beyond its bioenergetic role, cytochrome bd plays multiple functions in bacterial physiology and affords protection against oxidative and nitrosative stress. Relevant to human pathophysiology, thanks to its peculiar properties, the enzyme has been shown to promote virulence in several bacterial pathogens, being currently recognized as a target for the development of new antibiotics. This review aims to give an update on our current understanding of bd-type oxidases with a focus on their reactivity with gaseous ligands and its potential impact on bacterial physiology and human pathophysiology.
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72
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Meng XM, Huang X, Lu HL, Zhang CM, Kim YC, Chen J, Xu WX. H 2 S-induced gastric fundus smooth muscle tension potentiation is mediated by the phosphoinositide 3-kinase/Akt/endothelial nitric oxide synthase pathway. Exp Physiol 2017; 102:779-790. [PMID: 28383821 DOI: 10.1113/ep086288] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2017] [Accepted: 04/03/2017] [Indexed: 01/07/2023]
Abstract
NEW FINDINGS What is the central question of this study? The present study investigated the relationship between H2 S and NO in regulation of gastric fundus tension. What is the main finding and its importance? Endogenous or exogenous H2 S and NO have opposite effects on fundus tension, and H2 S-induced gastric fundus tension enhancements are mediated by inhibition of NO generation through the phosphoinositide 3-kinase/Akt pathway. These results are very important in exploring the mechanism of physiological accommodation and accommodation disorder. Hydrogen sulphide (H2 S) is considered a new gasotransmitter, along with NO and CO. It was recently confirmed that H2 S and NO play important roles in the regulation of gastrointestinal smooth muscle tension. The present study was designed to elucidate the interactions between H2 S and NO with respect to the regulation of gastric fundus smooth muscle tension using Western blotting, physiological and electrochemical techniques. Real-time H2 S and NO generation was detected in gastric smooth muscle tissue. NaHS, an H2 S donor, enhanced fundus smooth muscle tension, whereas SNP, an NO donor, decreased fundus smooth muscle tension in a dose-dependent manner. NaHS-induced increases in fundus smooth muscle tension were suppressed by l-NAME, an NO synthase inhibitor. Aminooxyacetic acid (AOAA), a cystathionine β-synthase inhibitor, exerted inhibitory effects on fundus smooth muscle tension; these effects were also suppressed by l-NAME. Real-time NO generation was significantly potentiated by AOAA. Endothelial nitric oxide synthase (eNOS) phosphorylation at serine 1177 and Akt phosphorylation at serine 308 and threonine 473 were significantly inhibited by NaHS. LY294002, a phosphoinositide 3-kinase inhibitor, blocked these NaHS-mediated effects. However, eNOS phosphorylation at serine 1177 and Akt phosphorylation at serine 308 and threonine 473 were significantly potentiated by AOAA. Cystathionine β-synthase siRNA interference significantly increased eNOS phosphorylation at serine 1177 and Akt phosphorylation at serine 308 and threonine 473. Cystathionine β-synthase siRNA interference also increased total eNOS protein expression levels but did not significantly change total Akt kinase protein expression levels. These results suggest that H2 S-induced enhancement of gastric fundus tension is mediated by inhibition of NO generation through the phosphoinositide 3-kinase/Akt pathway.
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Affiliation(s)
- Xiang-Min Meng
- Department of Physiology, College of Basic Medicine, Shanghai Jiao Tong University School of Medicine, 280 South Chongqing Road, Shanghai, China
| | - Xu Huang
- Department of Physiology, College of Basic Medicine, Shanghai Jiao Tong University School of Medicine, 280 South Chongqing Road, Shanghai, China
| | - Hong-Li Lu
- Department of Physiology, College of Basic Medicine, Shanghai Jiao Tong University School of Medicine, 280 South Chongqing Road, Shanghai, China
| | - Chun-Mei Zhang
- Department of Physiology, College of Basic Medicine, Shanghai Jiao Tong University School of Medicine, 280 South Chongqing Road, Shanghai, China
| | - Young-Chul Kim
- Department of Physiology, Chungbuk National University College of Medicine, Cheongju, Chungbuk 361-763, Republic of Korea
| | - Jie Chen
- Department of Pediatric Surgery, Xin Hua Hospital, Affiliated to Shanghai JiaoTong University School of Medicine, 1665 Kong Jiang Road, 200092, Shanghai, China
| | - Wen-Xie Xu
- Department of Physiology, College of Basic Medicine, Shanghai Jiao Tong University School of Medicine, 280 South Chongqing Road, Shanghai, China
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73
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Mistry RK, Brewer AC. Redox regulation of gasotransmission in the vascular system: A focus on angiogenesis. Free Radic Biol Med 2017; 108:500-516. [PMID: 28433660 PMCID: PMC5698259 DOI: 10.1016/j.freeradbiomed.2017.04.025] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/03/2017] [Revised: 04/15/2017] [Accepted: 04/18/2017] [Indexed: 02/06/2023]
Abstract
Reactive oxygen species have emerged as key participants in a broad range of physiological and pathophysiological processes, not least within the vascular system. Diverse cellular functions which have been attributed to some of these pro-oxidants within the vasculature include the regulation of blood pressure, neovascularisation and vascular inflammation. We here highlight the emerging roles of the enzymatically-generated reaction oxygen species, O2- and H2O2, in the regulation of the functions of the gaseous signalling molecules: nitric oxide (NO), carbon monoxide (CO), and hydrogen sulphide (H2S). These gasotransmitters are produced on demand from distinct enzymatic sources and in recent years it has become apparent that they are capable of mediating a number of homeostatic processes within the cardiovascular system including enhanced vasodilation, angiogenesis, wound healing and improved cardiac function following myocardial infarction. In common with O2- and/or H2O2 they signal by altering the functions of target proteins, either by the covalent modification of thiol groups or by direct binding to metal centres within metalloproteins, most notably haem proteins. The regulation of the enzymes which generate NO, CO and H2S have been shown to be influenced at both the transcriptional and post-translational levels by redox-dependent mechanisms, while the activity and bioavailability of the gasotransmitters themselves are also subject to oxidative modification. Within vascular cells, the family of nicotinamide adenine dinucleotide phosphate oxidases (NAPDH oxidases/Noxs) have emerged as functionally significant sources of regulated O2- and H2O2 production and accordingly, direct associations between Nox-generated oxidants and the functions of specific gasotransmitters are beginning to be identified. This review focuses on the current knowledge of the redox-dependent mechanisms which regulate the generation and activity of these gases, with particular reference to their roles in angiogenesis.
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Affiliation(s)
- Rajesh K Mistry
- Cardiovascular Division, James Black Centre, King's College London BHF Centre of Excellence, 125 Coldharbour Lane, London SE5 9NU, UK
| | - Alison C Brewer
- Cardiovascular Division, James Black Centre, King's College London BHF Centre of Excellence, 125 Coldharbour Lane, London SE5 9NU, UK.
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74
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Abstract
Exposure to carbon monoxide (CO) during general anesthesia can result from volatile anesthetic degradation by carbon dioxide absorbents and rebreathing of endogenously produced CO. Although adherence to the Anesthesia Patient Safety Foundation guidelines reduces the risk of CO poisoning, patients may still experience subtoxic CO exposure during low-flow anesthesia. The consequences of such exposures are relatively unknown. In contrast to the widely recognized toxicity of high CO concentrations, the biologic activity of low concentration CO has recently been shown to be cytoprotective. As such, low-dose CO is being explored as a novel treatment for a variety of different diseases. Here, we review the concept of anesthesia-related CO exposure, identify the sources of production, detail the mechanisms of overt CO toxicity, highlight the cellular effects of low-dose CO, and discuss the potential therapeutic role for CO as part of routine anesthetic management.
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Affiliation(s)
- Richard J Levy
- From the Department of Anesthesiology, Columbia University Medical Center, New York, New York
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75
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Methane Suppresses Microglial Activation Related to Oxidative, Inflammatory, and Apoptotic Injury during Spinal Cord Injury in Rats. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2017; 2017:2190897. [PMID: 28740568 PMCID: PMC5504966 DOI: 10.1155/2017/2190897] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/05/2017] [Revised: 03/18/2017] [Accepted: 03/29/2017] [Indexed: 01/07/2023]
Abstract
OBJECTIVE We investigated the hypothesis that methane-rich saline (MS) can be used to repair spinal cord injury (SCI) in a rat model through suppressing microglial activation related to oxidative, inflammatory, and apoptotic injury. METHODS MS was injected intraperitoneally in rats after SCI. Hematoxylin-eosin (HE) staining, oxidative stress, inflammatory parameters, and cell apoptosis were detected 72 h after SCI to determine the optimal dose. Then, we investigated the protective mechanisms and the long-term effects of MS on SCI. HE and microglial activation were observed. Neurological function was evaluated by the Basso, Beattie, and Bresnahan (BBB) scale. RESULTS MS can significantly decrease infarct area and inhibit oxidative stress, inflammation, and cell apoptosis 72 h following SCI. The MS protective effect at a dose of 20 ml/kg was better. Moreover, MS can significantly suppress microglial activation related to oxidative and inflammatory injury after SCI and improve hind limb neurological function. CONCLUSION MS could repair SCI and reduce the release of oxidative stress, inflammatory cytokines, and cell apoptosis produced by activated microglia. MS provides a novel and promising strategy for the treatment of SCI.
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76
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Tan XX, Lian KQ, Li X, Li N, Wang W, Kang WJ, Shi HM. Development of a derivatization method for the quantification of hydrogen sulfide and its application in vascular calcification rats. J Chromatogr B Analyt Technol Biomed Life Sci 2017; 1055-1056:8-14. [DOI: 10.1016/j.jchromb.2017.04.023] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2016] [Revised: 02/28/2017] [Accepted: 04/12/2017] [Indexed: 01/27/2023]
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77
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Rodriguez-Grande B, Konsman JP. Gas Diffusion in the CNS. J Neurosci Res 2017; 96:207-218. [PMID: 28504343 DOI: 10.1002/jnr.24077] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2016] [Revised: 03/23/2017] [Accepted: 04/10/2017] [Indexed: 12/21/2022]
Abstract
Gases have been long known to have essential physiological functions in the CNS such as respiration or regulation of vascular tone. Since gases have been classically considered to freely diffuse, research in gas biology has so far focused on mechanisms of gas synthesis and gas reactivity, rather than gas diffusion and transport. However, the discovery of gas pores during the last two decades and the characterization of diverse diffusion patterns through different membranes has raised the possibility that modulation of gas diffusion is also a physiologically relevant parameter. Here we review the means of gas movement into and within the brain through "free" diffusion and gas pores, notably aquaporins, discussing the role that gas diffusion may play in the modulation of gas function. We highlight how diffusion is relevant to neuronal signaling, volume transmission, and cerebrovascular control in the case of NO, one of the most extensively studied gases. We point out how facilitated transport can be especially relevant for gases with low permeability in lipid membranes like NH3 and discuss the possible implications of NH3 -permeable channels in physiology and hyperammonemic encephalopathy. We identify novel research questions about how modulation of gas diffusion could intervene in CNS pathologies. This emerging area of research can provide novel and interesting insights in the field of gas biology.
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78
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Kraehling JR, Sessa WC. Contemporary Approaches to Modulating the Nitric Oxide-cGMP Pathway in Cardiovascular Disease. Circ Res 2017; 120:1174-1182. [PMID: 28360348 DOI: 10.1161/circresaha.117.303776] [Citation(s) in RCA: 53] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Endothelial cells lining the vessel wall control important aspects of vascular homeostasis. In particular, the production of endothelium-derived nitric oxide and activation of soluble guanylate cyclase promotes endothelial quiescence and governs vasomotor function and proportional remodeling of blood vessels. Here, we discuss novel approaches to improve endothelial nitric oxide generation and preserve its bioavailability. We also discuss therapeutic opportunities aimed at activation of soluble guanylate cyclase for multiple cardiovascular indications.
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Affiliation(s)
- Jan R Kraehling
- From the Vascular Biology and Therapeutics Program (J.R.K.) and Department of Pharmacology (W.C.S.), Yale University, School of Medicine, New Haven, CT
| | - William C Sessa
- From the Vascular Biology and Therapeutics Program (J.R.K.) and Department of Pharmacology (W.C.S.), Yale University, School of Medicine, New Haven, CT.
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79
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Tonazzi A, Giangregorio N, Console L, De Palma A, Indiveri C. Nitric oxide inhibits the mitochondrial carnitine/acylcarnitine carrier through reversible S-nitrosylation of cysteine 136. BIOCHIMICA ET BIOPHYSICA ACTA-BIOENERGETICS 2017; 1858:475-482. [PMID: 28438511 DOI: 10.1016/j.bbabio.2017.04.002] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2017] [Revised: 03/29/2017] [Accepted: 04/20/2017] [Indexed: 12/30/2022]
Abstract
S-nitrosylation of the mitochondrial carnitine/acylcarnitine transporter (CACT) has been investigated on the native and the recombinant proteins reconstituted in proteoliposomes, and on intact mitochondria. The widely-used NO-releasing compound, GSNO, strongly inhibited the antiport measured in proteoliposomes reconstituted with the native CACT from rat liver mitochondria or the recombinant rat CACT over-expressed in E. coli. Inhibition was reversed by the reducing agent dithioerythritol, indicating a reaction mechanism based on nitrosylation of Cys residues of the CACT. The half inhibition constant (IC50) was very similar for the native and recombinant proteins, i.e., 74 and 71μM, respectively. The inhibition resulted to be competitive with respect the substrate, carnitine. NO competed also with NEM, correlating well with previous data showing interference of NEM with the substrate transport path. Using a site-directed mutagenesis approach on Cys residues of the recombinant CACT, the target of NO was identified. C136 plays a major role in the reaction mechanism. The occurrence of S-nitrosylation was demonstrated in intact mitochondria after treatment with GSNO, immunoprecipitation and immunostaining of CACT with a specific anti NO-Cys antibody. In parallel samples, transport activity of CACT measured in intact mitochondria, was strongly inhibited after GSNO treatment. The possible physiological and pathological implications of the post-translational modification of CACT are discussed.
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Affiliation(s)
- Annamaria Tonazzi
- CNR Institute of Biomembranes, Bioenergetics and Molecular Biotechnology, via Amendola 165/A, 70126 Bari, Italy
| | - Nicola Giangregorio
- CNR Institute of Biomembranes, Bioenergetics and Molecular Biotechnology, via Amendola 165/A, 70126 Bari, Italy
| | - Lara Console
- Department DiBEST (Biologia, Ecologia, Scienze della Terra), Unit of Biochemistry and Molecular Biotechnology, Via Bucci 4C, University of Calabria, 87036 Arcavacata di Rende, Italy
| | - Annalisa De Palma
- Department of Bioscience, Biotechnology and Biopharmaceutics, University of Bari, Italy
| | - Cesare Indiveri
- CNR Institute of Biomembranes, Bioenergetics and Molecular Biotechnology, via Amendola 165/A, 70126 Bari, Italy; Department DiBEST (Biologia, Ecologia, Scienze della Terra), Unit of Biochemistry and Molecular Biotechnology, Via Bucci 4C, University of Calabria, 87036 Arcavacata di Rende, Italy.
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80
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Slezák J, Kura B, Frimmel K, Zálešák M, Ravingerová T, Viczenczová C, Okruhlicová Ľ, Tribulová N. Preventive and therapeutic application of molecular hydrogen in situations with excessive production of free radicals. Physiol Res 2017; 65 Suppl 1:S11-28. [PMID: 27643933 DOI: 10.33549/physiolres.933414] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Excessive production of oxygen free radicals has been regarded as a causative common denominator of many pathological processes in the animal kingdom. Hydroxyl and nitrosyl radicals represent the major cause of the destruction of biomolecules either by a direct reaction or by triggering a chain reaction of free radicals. Scavenging of free radicals may act preventively or therapeutically. A number of substances that preferentially react with free radicals can serve as scavengers, thus increasing the internal capacity/activity of endogenous antioxidants and protecting cells and tissues against oxidative damage. Molecular hydrogen (H(2)) reacts with strong oxidants, such as hydroxyl and nitrosyl radicals, in the cells, that enables utilization of its potential for preventive and therapeutic applications. H(2) rapidly diffuses into tissues and cells without affecting metabolic redox reactions and signaling reactive species. H(2) reduces oxidative stress also by regulating gene expression, and functions as an anti-inflammatory and anti-apoptotic agent. There is a growing body of evidence based on the results of animal experiments and clinical observations that H(2) may represent an effective antioxidant for the prevention of oxidative stress-related diseases. Application of molecular hydrogen in situations with excessive production of free radicals, in particular, hydroxyl and nitrosyl radicals is relatively simple and effective, therefore, it deserves special attention.
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Affiliation(s)
- J Slezák
- Institute for Heart Research, Slovak Academy of Sciences, Bratislava, Slovakia.
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81
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Magierowski M, Magierowska K, Hubalewska-Mazgaj M, Sliwowski Z, Pajdo R, Ginter G, Kwiecien S, Brzozowski T. Exogenous and Endogenous Hydrogen Sulfide Protects Gastric Mucosa against the Formation and Time-Dependent Development of Ischemia/Reperfusion-Induced Acute Lesions Progressing into Deeper Ulcerations. Molecules 2017; 22:molecules22020295. [PMID: 28212299 PMCID: PMC6155792 DOI: 10.3390/molecules22020295] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2016] [Revised: 02/06/2017] [Accepted: 02/11/2017] [Indexed: 12/14/2022] Open
Abstract
Hydrogen sulfide (H2S) is an endogenous mediator, synthesized from l-cysteine by cystathionine γ-lyase (CSE), cystathionine β-synthase (CBS) or 3-mercaptopyruvate sulfurtransferase (3-MST). The mechanism(s) involved in H2S-gastroprotection against ischemia/reperfusion (I/R) lesions and their time-dependent progression into deeper gastric ulcerations have been little studied. We determined the effect of l-cysteine, H2S-releasing NaHS or slow H2S releasing compound GYY4137 on gastric blood flow (GBF) and gastric lesions induced by 30 min of I followed by 3, 6, 24 and 48 h of R. Role of endogenous prostaglandins (PGs), afferent sensory nerves releasing calcitonin gene-related peptide (CGRP), the gastric expression of hypoxia inducible factor (HIF)-1α and anti-oxidative enzymes were examined. Rats with or without capsaicin deactivation of sensory nerves were pretreated i.g. with vehicle, NaHS (18–180 μmol/kg) GYY4137 (90 μmol/kg) or l-cysteine (0.8–80 μmol/kg) alone or in combination with (1) indomethacin (14 μmol/kg i.p.), SC-560 (14 μmol/kg), celecoxib (26 μmol/kg); (2) capsazepine (13 μmol/kg i.p.); and (3) CGRP (2.5 nmol/kg i.p.). The area of I/R-induced gastric lesions and GBF were measured by planimetry and H2-gas clearance, respectively. Expression of mRNA for CSE, CBS, 3-MST, HIF-1α, glutathione peroxidase (GPx)-1, superoxide dismutase (SOD)-2 and sulfide production in gastric mucosa compromised by I/R were determined by real-time PCR and methylene blue method, respectively. NaHS and l-cysteine dose-dependently attenuated I/R-induced lesions while increasing the GBF, similarly to GYY4137 (90 μmol/kg). Capsaicin denervation and capsazepine but not COX-1 and COX-2 inhibitors reduced NaHS- and l-cysteine-induced protection and hyperemia. NaHS increased mRNA expression for SOD-2 and GPx-1 but not that for HIF-1α. NaHS which increased gastric mucosal sulfide release, prevented further progression of acute I/R injury into deeper gastric ulcers at 6, 24 and 48 h of R. We conclude that H2S-induced gastroprotection against I/R-injury is due to increase in gastric microcirculation, anti-oxidative properties and afferent sensory nerves activity but independent on endogenous prostaglandins.
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Affiliation(s)
- Marcin Magierowski
- Department of Physiology, Jagiellonian University Medical College, 31-531 Cracow, Poland.
| | - Katarzyna Magierowska
- Department of Physiology, Jagiellonian University Medical College, 31-531 Cracow, Poland.
| | - Magdalena Hubalewska-Mazgaj
- Department of Physiology, Jagiellonian University Medical College, 31-531 Cracow, Poland.
- Department of Genetic Research and Nutrigenomics, Malopolska Centre of Biotechnology, Jagiellonian University, 30-387 Cracow, Poland.
| | - Zbigniew Sliwowski
- Department of Physiology, Jagiellonian University Medical College, 31-531 Cracow, Poland.
| | - Robert Pajdo
- Department of Physiology, Jagiellonian University Medical College, 31-531 Cracow, Poland.
| | - Grzegorz Ginter
- Department of Physiology, Jagiellonian University Medical College, 31-531 Cracow, Poland.
| | - Slawomir Kwiecien
- Department of Physiology, Jagiellonian University Medical College, 31-531 Cracow, Poland.
| | - Tomasz Brzozowski
- Department of Physiology, Jagiellonian University Medical College, 31-531 Cracow, Poland.
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82
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Nakagawa H. Photocontrol of NO, H2S, and HNO Release in Biological Systems by Using Specific Caged Compounds. Chem Pharm Bull (Tokyo) 2017; 64:1249-55. [PMID: 27581628 DOI: 10.1248/cpb.c16-00403] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Nitric oxide (NO) is a gas that plays various roles in physiological signal transduction, for example, in vasodilation, neural transmission, and biodefence. Recently, other gaseous signal mediators such as carbon monoxide (CO) and hydrogen sulfide (H2S) have also been found to have important biological activities. Since experimental studies with gaseous mediators are difficult, chemicals that enable controlled release of these gases are indispensable. We have developed a range of photocontrollable releasers that generate NO, H2S, and related species with fine spatiotemporal control, and we have also employed these caged compounds in various applications. This paper briefly reviews our work on photocontrollable NO, H2S, and HNO releasers, and presents some typical applications illustrating the suitability of our compounds for controlled release of these biologically active species in cellular and tissue systems. These compounds also appear to have potential for future therapeutic applications.
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83
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Meininger DJ, Arman HD, Tonzetich ZJ. Synthesis, characterization, and binding affinity of hydrosulfide complexes of synthetic iron(II) porphyrinates. J Inorg Biochem 2017; 167:142-149. [DOI: 10.1016/j.jinorgbio.2016.08.014] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2016] [Revised: 08/23/2016] [Accepted: 08/25/2016] [Indexed: 01/23/2023]
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84
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Inhibition of Apoptosis Stages of Human Blood Lymphocytes after Exposure to Carbon Monoxide in the Presence of Recombinant Interleukin-2. Bull Exp Biol Med 2017; 162:362-365. [DOI: 10.1007/s10517-017-3616-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2016] [Indexed: 11/26/2022]
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85
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Maga M, Janik MK, Wachsmann A, Chrząstek-Janik O, Koziej M, Bajkowski M, Maga P, Tyrak K, Wójcik K, Gregorczyk-Maga I, Niżankowski R. Influence of air pollution on exhaled carbon monoxide levels in smokers and non-smokers. A prospective cross-sectional study. ENVIRONMENTAL RESEARCH 2017; 152:496-502. [PMID: 27712837 DOI: 10.1016/j.envres.2016.09.004] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2016] [Revised: 09/07/2016] [Accepted: 09/08/2016] [Indexed: 06/06/2023]
Abstract
BACKGROUND The poor air quality and cigarette smoking are the most important reasons for increased carbon monoxide (CO) level in exhaled air. However, the influence of high air pollution concentration in big cities on the exhaled CO level has not been well studied yet. OBJECTIVES To evaluate the impact of smoking habit and air pollution in the place of living on the level of CO in exhaled air. METHODS Citizens from two large cities and one small town in Poland were asked to complete a survey disclosing their place of residence, education level, work status and smoking habits. Subsequently, the CO level in their exhaled air was measured. Air quality data, obtained from the Regional Inspectorates of Environmental Protection, revealed the differences in atmospheric CO concentration between locations. RESULTS 1226 subjects were divided into 4 groups based on their declared smoking status and place of living. The average CO level in exhaled air was significantly higher in smokers than in non-smokers (p<0.0001) as well as in non-smokers from big cities than non-smokers from small ones (p<0.0001). Created model showed that non-smokers from big cities have odds ratio of 125.3 for exceeding CO cutoff level of 4ppm compared to non-smokers from small towns. CONCLUSIONS The average CO level in exhaled air is significantly higher in smokers than non-smokers. Among non-smokers, the average exhaled CO level is significantly higher in big city than small town citizens. These results suggest that permanent exposure to an increased concentration of air pollution and cigarette smoking affect the level of exhaled CO.
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Affiliation(s)
- Mikołaj Maga
- Jagiellonian University Medical College, 8 Skawinska Street, Krakow, Poland
| | - Maciej K Janik
- Medical University of Warsaw, 2a Trojdena Street, Warsaw, Poland
| | - Agnieszka Wachsmann
- Jagiellonian University Medical College, 8 Skawinska Street, Krakow, Poland.
| | | | - Mateusz Koziej
- Jagiellonian University Medical College, 8 Skawinska Street, Krakow, Poland
| | | | - Paweł Maga
- Angiology Department, Jagiellonian University Medical College, 8 Skawinska Street, Krakow, Poland
| | - Katarzyna Tyrak
- Jagiellonian University Medical College, 8 Skawinska Street, Krakow, Poland
| | - Krzysztof Wójcik
- Immunology and Allergology Department, Jagiellonian University Medical College, 8 Skawinska Street, Krakow, Poland
| | | | - Rafał Niżankowski
- Angiology Department, Jagiellonian University Medical College, 8 Skawinska Street, Krakow, Poland
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86
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Tomita M, Nagahara N, Ito T. Expression of 3-Mercaptopyruvate Sulfurtransferase in the Mouse. Molecules 2016; 21:molecules21121707. [PMID: 27973427 PMCID: PMC6273466 DOI: 10.3390/molecules21121707] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2016] [Revised: 12/06/2016] [Accepted: 12/07/2016] [Indexed: 01/16/2023] Open
Abstract
3-Mercaptopyruvate sulfurtransferase (MST) is one of the principal enzymes for the production of hydrogen sulfide and polysulfides in mammalians, and emerging evidence supports the physiological significance of MST. As a fundamental study of the physiology and pathobiology of MST, it is necessary to establish the tissue distribution of MST in mice. In the present study, the expression of MST in various organs of adult and fetal mice was analyzed by Western blotting and enzyme-immunohistochemistry. Moreover, the histology of MST gene-deficient mice was examined. Western blotting revealed that all organs examined had MST. The brain, liver, kidneys testes, and endocrine organs contained large amounts of MST, but the lungs, spleen, thymus, and small intestine did not. Immunohistochemically, the MST expression pattern varies in a cell-specific manner. In the brain, neural and glial cells are positively stained; in the lung, bronchiolar cells are preferentially stained; in the liver, hepatocytes around central veins are more strongly stained; renal convoluted cells are strongly stained; and pancreatic islets are strongly stained. Fetal tissues were studied, and MST expression was found to be similar before and after birth. Histological observation revealed no remarkable findings in MST gene-deficient mice. The present study revealed fundamental information regarding the MST expression of various organs in adult and fetal mice, and the morphological phenotype of MST gene-deficient mice.
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Affiliation(s)
- Masahiro Tomita
- Department of Pathology and Experimental Medicine, Kumamoto University Graduate School of Medical Sciences, 1-1-1 Honjo Chuo-ku, Kumamoto 860-8556, Japan.
| | - Noriyuki Nagahara
- Isotope Research Center, Nippon Medical School; Tokyo 113-8602, Japan.
| | - Takaaki Ito
- Department of Pathology and Experimental Medicine, Kumamoto University Graduate School of Medical Sciences, 1-1-1 Honjo Chuo-ku, Kumamoto 860-8556, Japan.
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87
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Tabe H, Shimoi T, Boudes M, Abe S, Coulibaly F, Kitagawa S, Mori H, Ueno T. Photoactivatable CO release from engineered protein crystals to modulate NF-κB activation. Chem Commun (Camb) 2016; 52:4545-8. [PMID: 26940021 DOI: 10.1039/c5cc10440h] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Photoactivatable CO releasing protein crystals were developed by immobilization of Mn carbonyl complexes in polyhedral crystals, which are spontaneously formed in insect cells. The photoactivatable CO release from the engineered protein crystals activates nuclear factor kappa B (NF-κB) upon stimulation by visible light irradiation with suppression of cytotoxicity of the Mn complex.
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Affiliation(s)
- Hiroyasu Tabe
- Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan.
| | - Takuya Shimoi
- Graduate School of Bioscience and Biotechnology, Tokyo Institute of Technology, Nagatsuta 4259, Midori-ku, Yokohama 224-8501, Japan.
| | - Marion Boudes
- Infection and Immunity Program, Monash Biomedicine Discovery Institute and Department of Biochemistry and Molecular Biology, Monash University, Melbourne, VIC3800, Australia
| | - Satoshi Abe
- Graduate School of Bioscience and Biotechnology, Tokyo Institute of Technology, Nagatsuta 4259, Midori-ku, Yokohama 224-8501, Japan.
| | - Fasséli Coulibaly
- Infection and Immunity Program, Monash Biomedicine Discovery Institute and Department of Biochemistry and Molecular Biology, Monash University, Melbourne, VIC3800, Australia
| | - Susumu Kitagawa
- Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan.
| | - Hajime Mori
- Insect Biomedical Research Center, Kyoto Institute of Technology, Matsugasaki, Sakyo-ku, Kyoto 606-8585, Japan
| | - Takafumi Ueno
- Graduate School of Bioscience and Biotechnology, Tokyo Institute of Technology, Nagatsuta 4259, Midori-ku, Yokohama 224-8501, Japan.
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88
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Chiu TW, Chen YL, Wu CY, Yu PL, Shieh YH, Huang B. Hydrogen Sulfide Modulates the S-Nitrosoproteome and the Mitochondrial Morphology in Endothelial Cells. ACTA CARDIOLOGICA SINICA 2016; 32:604-611. [PMID: 27713610 DOI: 10.6515/acs20150825a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
BACKGROUND Hydrogen sulfide (H2S) is one of the endogenous gaseous molecules promoting the production of nitric oxide (NO) which has cardioprotective functions. However, the role of the H2S-mediated protein S-nitrosoproteome and its subsequent physiological response remains unclear. METHODS Endothelial cells EAhy 926 were treated with 50 μM of H2S for 2 hours. The NO bound S-nitrosoproteins were purified by a biotin-switch and then digested by trypsin. Resulting peptides from control and H2S treatment were separately labeled by isobaric tag for relative and absolute quantitation 114/115, quantified by liquid chromatography tandem-mass spectrometry and analyzed by ingenuity pathway analysis (IPA) software. The microP software was applied to analyze the morphological changes of mitochondria. RESULTS With the treatment of H2S, 416 S-nitrosylated proteins were identified. IPA analysis showed that these proteins were involved in five signaling pathways. The NO-bound cysteine residues and the S-nitrosylation levels (115/114) were shown for ten S-nitrosoproteins. Western blot further verified the S-nitrosylation of thioredoxin-dependant peroxide reductase, cytochrome c oxidase and cytochrome b-c1 complex that are involved in the mitochondrial signaling pathway. H2O2-induced mitochondrial swelling can be reduced by the pretreatment of H2S. CONCLUSIONS The H2S-mediated endothelial S-nitrosoproteome has been confirmed. In the present study, we have proposed the cardioprotective role of H2S via maintaining mitochondrial homeostasis.
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Affiliation(s)
- Tsan-Wan Chiu
- Division of Cardiology, Ten Chan General Hospital, Chung-Li, Taoyuan
| | - Ying-Lun Chen
- Department of Medicine, MacKay Medical College, New Taipei City; ; Department of Anesthesiology, MacKay Memorial Hospital; ; MacKay Junior College of Medicine, Nursing and Management, Taipei
| | - Chien-Yi Wu
- Department of Pediatrics, E-Da Hospital; ; School of Medicine, College of Medicine, I-Shou University
| | - Pei-Ling Yu
- Department of Biomedical Science and Environmental Biology, College of Life Science, Kaohsiung Medical University, Kaohsiung
| | - Ying-Hua Shieh
- Division of Family Medicine, Wan Fang Medical Center, Taipei Medical University, Taipei
| | - Bin Huang
- Department of Biomedical Science and Environmental Biology, College of Life Science, Kaohsiung Medical University, Kaohsiung; ; Center for Biomarkers and Biotech Drugs; ; Center for Infectious Disease and Cancer Research, Kaohsiung Medical University; ; Department of Biological Sciences, National Sun Yat-sen University, Kaohsiung, Taiwan
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89
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Shibata A, Ishima Y, Ikeda M, Sato H, Imafuku T, Chuang V, Ouchi Y, Abe T, Watanabe H, Ishida T, Otagiri M, Maruyama T. Human serum albumin hydropersulfide is a potent reactive oxygen species scavenger in oxidative stress conditions such as chronic kidney disease. Biochem Biophys Res Commun 2016; 479:578-583. [DOI: 10.1016/j.bbrc.2016.09.113] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2016] [Accepted: 09/22/2016] [Indexed: 12/11/2022]
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90
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Kabe Y, Yamamoto T, Kajimura M, Sugiura Y, Koike I, Ohmura M, Nakamura T, Tokumoto Y, Tsugawa H, Handa H, Kobayashi T, Suematsu M. Cystathionine β-synthase and PGRMC1 as CO sensors. Free Radic Biol Med 2016; 99:333-344. [PMID: 27565814 DOI: 10.1016/j.freeradbiomed.2016.08.025] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/13/2016] [Revised: 08/21/2016] [Accepted: 08/23/2016] [Indexed: 11/30/2022]
Abstract
Heme oxygenase (HO) is a mono-oxygenase utilizing heme and molecular oxygen (O2) as substrates to generate biliverdin-IXα and carbon monoxide (CO). HO-1 is inducible under stress conditions, while HO-2 is constitutive. A balance between heme and CO was shown to regulate cell death and survival in many experimental models. However, direct molecular targets to which CO binds to regulate cellular functions remained to be fully examined. We have revealed novel roles of CO-responsive proteins, cystathionine β-synthase (CBS) and progesterone receptor membrane component 1 (PGRMC1), in regulating cellular functions. CBS possesses a prosthetic heme that allows CO binding to inhibit the enzyme activity and to regulate H2S generation and/or protein arginine methylation. On the other hand, in response to heme accumulation in cells, PGRMC1 forms a stable dimer through stacking interactions of two protruding heme molecules. Heme-mediated PGRMC1 dimerization is necessary to interact with EGF receptor and cytochromes P450 that determine cell proliferation and xenobiotic metabolism. Furthermore, CO interferes with PGRMC1 dimerization by dissociating the heme stacking, and thus results in modulation of cell responses. This article reviews the intriguing functions of these two proteins in response to inducible and constitutive levels of CO with their pathophysiological implications.
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Affiliation(s)
- Yasuaki Kabe
- Department of Biochemistry, Keio University School of Medicine, Tokyo 160-8582, Japan; Japan Agency for Medical Research and Development, Core Research for Evolutional Science and Technology (AMED-CREST), Tokyo 160-8582, Japan
| | - Takehiro Yamamoto
- Department of Biochemistry, Keio University School of Medicine, Tokyo 160-8582, Japan
| | - Mayumi Kajimura
- Department of Biology, Keio University School of Medicine, Yokohama 223-8521, Japan
| | - Yuki Sugiura
- Department of Biochemistry, Keio University School of Medicine, Tokyo 160-8582, Japan
| | - Ikko Koike
- Department of Biochemistry, Keio University School of Medicine, Tokyo 160-8582, Japan
| | - Mitsuyo Ohmura
- Department of Biochemistry, Keio University School of Medicine, Tokyo 160-8582, Japan; Japan Agency for Medical Research and Development, Core Research for Evolutional Science and Technology (AMED-CREST), Tokyo 160-8582, Japan
| | - Takashi Nakamura
- Department of Biochemistry, Keio University School of Medicine, Tokyo 160-8582, Japan
| | - Yasuhito Tokumoto
- Department of Biochemistry, Keio University School of Medicine, Tokyo 160-8582, Japan; Admission Center, Saitama Medical University, Moroyama 350-0495, Japan
| | - Hitoshi Tsugawa
- Department of Biochemistry, Keio University School of Medicine, Tokyo 160-8582, Japan; Japan Agency for Medical Research and Development, Core Research for Evolutional Science and Technology (AMED-CREST), Tokyo 160-8582, Japan
| | - Hiroshi Handa
- Department of Nanoparticle Translational Research, Tokyo Medical University, Tokyo 160-8402, Japan
| | - Takuya Kobayashi
- Department of Medical Chemistry and Cell Biology, Graduate School of Medicine, Kyoto University, Kyoto 606-8501, Japan
| | - Makoto Suematsu
- Department of Biochemistry, Keio University School of Medicine, Tokyo 160-8582, Japan.
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91
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Boubeta FM, Bari SE, Estrin DA, Boechi L. Access and Binding of H2S to Hemeproteins: The Case of HbI of Lucina pectinata. J Phys Chem B 2016; 120:9642-53. [DOI: 10.1021/acs.jpcb.6b06686] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Fernando M. Boubeta
- Departamento de
Química Inorgánica, Analítica y Química
Física/INQUIMAE-CONICET, Facultad de Ciencias Exactas y Naturales,
Universidad de Buenos Aires, Ciudad Universitaria, Pab. II, Buenos Aires C1428EHA, Argentina
| | - Sara E. Bari
- Departamento de
Química Inorgánica, Analítica y Química
Física/INQUIMAE-CONICET, Facultad de Ciencias Exactas y Naturales,
Universidad de Buenos Aires, Ciudad Universitaria, Pab. II, Buenos Aires C1428EHA, Argentina
| | - Dario A. Estrin
- Departamento de
Química Inorgánica, Analítica y Química
Física/INQUIMAE-CONICET, Facultad de Ciencias Exactas y Naturales,
Universidad de Buenos Aires, Ciudad Universitaria, Pab. II, Buenos Aires C1428EHA, Argentina
| | - Leonardo Boechi
- Instituto de Cálculo/CONICET,
Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires,
Ciudad Universitaria, Pab. II, Buenos Aires C1428EHA, Argentina
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92
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Abou-Hamdan A, Ransy C, Roger T, Guedouari-Bounihi H, Galardon E, Bouillaud F. Positive feedback during sulfide oxidation fine-tunes cellular affinity for oxygen. BIOCHIMICA ET BIOPHYSICA ACTA-BIOENERGETICS 2016; 1857:1464-1472. [DOI: 10.1016/j.bbabio.2016.04.282] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2015] [Revised: 03/29/2016] [Accepted: 04/28/2016] [Indexed: 10/21/2022]
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93
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Tzaneva V, Perry SF. Role of endogenous carbon monoxide in the control of breathing in zebrafish (Danio rerio). Am J Physiol Regul Integr Comp Physiol 2016; 311:R1262-R1270. [PMID: 27581810 DOI: 10.1152/ajpregu.00094.2016] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2016] [Revised: 08/22/2016] [Accepted: 08/24/2016] [Indexed: 01/05/2023]
Abstract
Carbon monoxide (CO) is a gaseous signaling molecule and is produced in vivo from the intracellular breakdown of heme via the heme oxygenase (HO) family of enzymes. In this study we investigated the role of the HO-1/CO system in the control of ventilation in zebrafish, Danio rerio Immunohistochemistry revealed the presence of HO-1 in the chemoreceptive neuroepithelial cells (NECs) of larvae (4 days postfertilization) and adults, indicating the potential for endogenous CO production in the NECs. Hypoxia (20 min, water Po2 of 30 mmHg) caused a significant increase in HO-1 activity in whole larvae and in the gills of adult fish. Zebrafish with reduced HO-1 activity (via HO-1 knockdown in larvae or zinc protoporphyrin IX treatment in adults) exhibited increased ventilation frequency (Vf) under normoxic but not hypoxic conditions. The addition of exogenous CO restored resting Vf in fish with diminished CO production, and in some cases (e.g., hypoxic sham larvae) CO modestly reduced Vf below resting levels. Larval fish were treated with phenylhydrazine (PHZ) to eliminate the potential confounding effects of CO-hemoglobin interactions that might influence ventilation. PHZ treatment did not cause changes in Vf of normoxic larvae, and the addition of CO to PHZ-exposed larvae resulted in a significant decrease in sham and HO-1-deficient fish under normoxic conditions. This study demonstrates for the first time that CO plays an inhibitory role in the control of breathing in larval and adult zebrafish.
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Affiliation(s)
- Velislava Tzaneva
- Department of Biology, University of Ottawa, Ottawa, Ontario, Canada
| | - Steve F Perry
- Department of Biology, University of Ottawa, Ottawa, Ontario, Canada
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94
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Stimulatory effect of CSE-generated H2S on hepatic mitochondrial biogenesis and the underlying mechanisms. Nitric Oxide 2016; 58:67-76. [DOI: 10.1016/j.niox.2016.06.005] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2016] [Accepted: 06/21/2016] [Indexed: 12/19/2022]
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95
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Corbin JM, Ruiz-Echevarría MJ. One-Carbon Metabolism in Prostate Cancer: The Role of Androgen Signaling. Int J Mol Sci 2016; 17:E1208. [PMID: 27472325 PMCID: PMC5000606 DOI: 10.3390/ijms17081208] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2016] [Revised: 07/16/2016] [Accepted: 07/18/2016] [Indexed: 01/06/2023] Open
Abstract
Cancer cell metabolism differs significantly from the metabolism of non-transformed cells. This altered metabolic reprogramming mediates changes in the uptake and use of nutrients that permit high rates of proliferation, growth, and survival. The androgen receptor (AR) plays an essential role in the establishment and progression of prostate cancer (PCa), and in the metabolic adaptation that takes place during this progression. In its role as a transcription factor, the AR directly affects the expression of several effectors and regulators of essential catabolic and biosynthetic pathways. Indirectly, as a modulator of the one-carbon metabolism, the AR can affect epigenetic processes, DNA metabolism, and redox balance, all of which are important factors in tumorigenesis. In this review, we focus on the role of AR-signaling on one-carbon metabolism in tumorigenesis. Clinical implications of one-carbon metabolism and AR-targeted therapies for PCa are discussed in this context.
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Affiliation(s)
- Joshua M Corbin
- Department of Pathology, Oklahoma University Health Sciences Center, Oklahoma City, OK 73104, USA.
| | - Maria J Ruiz-Echevarría
- Department of Pathology, Oklahoma University Health Sciences Center and Stephenson Cancer Center, Oklahoma City, OK 73104, USA.
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96
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Chinta KC, Saini V, Glasgow JN, Mazorodze JH, Rahman MA, Reddy D, Lancaster JR, Steyn AJC. The emerging role of gasotransmitters in the pathogenesis of tuberculosis. Nitric Oxide 2016; 59:28-41. [PMID: 27387335 DOI: 10.1016/j.niox.2016.06.009] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2016] [Accepted: 06/30/2016] [Indexed: 12/17/2022]
Abstract
Mycobacterium tuberculosis (Mtb) is a facultative intracellular pathogen and the second largest contributor to global mortality caused by an infectious agent after HIV. In infected host cells, Mtb is faced with a harsh intracellular environment including hypoxia and the release of nitric oxide (NO) and carbon monoxide (CO) by immune cells. Hypoxia, NO and CO induce a state of in vitro dormancy where Mtb senses these gases via the DosS and DosT heme sensor kinase proteins, which in turn induce a set of ∼47 genes, known as the Mtb Dos dormancy regulon. On the contrary, both iNOS and HO-1, which produce NO and CO, respectively, have been shown to be important against mycobacterial disease progression. In this review, we discuss the impact of O2, NO and CO on Mtb physiology and in host responses to Mtb infection as well as the potential role of another major endogenous gas, hydrogen sulfide (H2S), in Mtb pathogenesis.
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Affiliation(s)
- Krishna C Chinta
- Department of Microbiology, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Vikram Saini
- Department of Microbiology, University of Alabama at Birmingham, Birmingham, AL, USA; UAB Center for Free Radical Biology, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Joel N Glasgow
- Department of Microbiology, University of Alabama at Birmingham, Birmingham, AL, USA
| | - James H Mazorodze
- KwaZulu-Natal Research Institute for TB and HIV (KRITH), Durban, South Africa
| | - Md Aejazur Rahman
- KwaZulu-Natal Research Institute for TB and HIV (KRITH), Durban, South Africa
| | - Darshan Reddy
- Department of Cardiothoracic Surgery, Nelson R Mandela School of Medicine, University of KwaZulu Natal, Durban, South Africa
| | - Jack R Lancaster
- Department of Pharmacology and Chemical Biology, University of Pittsburgh, Pittsburgh, PA, USA
| | - Adrie J C Steyn
- Department of Microbiology, University of Alabama at Birmingham, Birmingham, AL, USA; KwaZulu-Natal Research Institute for TB and HIV (KRITH), Durban, South Africa; UAB Center for Free Radical Biology, University of Alabama at Birmingham, Birmingham, AL, USA.
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97
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Retamal MA. Carbon Monoxide Modulates Connexin Function through a Lipid Peroxidation-Dependent Process: A Hypothesis. Front Physiol 2016; 7:259. [PMID: 27445849 PMCID: PMC4923120 DOI: 10.3389/fphys.2016.00259] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2016] [Accepted: 06/13/2016] [Indexed: 12/13/2022] Open
Abstract
Hemichannels are ion channels composed of six connexins (Cxs), and they have the peculiarity to be permeable not only to ions, but also to molecules such as ATP and glutamate. Under physiological conditions they present a low open probability, which is sufficient to enable them to participate in several physiological functions. However, massive and/or prolonged hemichannel opening induces or accelerates cell death. Therefore, the study of the molecular mechanisms that control hemichannel activity appears to be essential for understanding several physiological and pathological processes. Carbon monoxide (CO) is a gaseous transmitter that modulates many cellular processes, some of them through modulation of ion channel activity. CO exerts its biological actions through the activation of guanylate cyclase and/or inducing direct carbonylation of proline, threonine, lysine, and arginine. It is well accepted that guanylate cyclase dependent pathway and direct carbonylation, are not sensitive to reducing agents. However, it is important to point out that CO—through a lipid peroxide dependent process—can also induce a secondary carbonylation in cysteine groups, which is sensitive to reducing agents. Recently, in our laboratory we demonstrated that the application of CO donors to the bath solution inhibited Cx46 hemichannel currents in Xenopus laevis oocytes, a phenomenon that was fully reverted by reducing agents. Therefore, a plausible mechanism of CO-induced Cx46 hemichannel inhibition is through Cx46-lipid oxidation. In this work, I will present current evidence and some preliminary results that support the following hypothesis: Carbon monoxide inhibits Cx46 HCs through a lipid peroxidation-dependent process. The main goal of this paper is to broaden the scientific community interest in studying the relationship between CO-Fatty acids and hemichannels, which will pave the way to more research directed to the understanding of the molecular mechanism(s) that control the opening and closing of hemichannels in both physiological and pathological conditions.
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Affiliation(s)
- Mauricio A Retamal
- Centro de Fisiología Celular e Integrativa, Facultad de Medicina, Clínica Alemana Universidad del Desarrollo Santiago, Chile
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98
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van der Vlies AJ, Inubushi R, Uyama H, Hasegawa U. Polymeric Framboidal Nanoparticles Loaded with a Carbon Monoxide Donor via Phenylboronic Acid-Catechol Complexation. Bioconjug Chem 2016; 27:1500-8. [DOI: 10.1021/acs.bioconjchem.6b00135] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- André J. van der Vlies
- Frontier
Research Center, Graduate School of Engineering, ‡Department of Applied
Chemistry, Graduate School of Engineering, and §Frontier Research Base for Young Researchers,
Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Ryosuke Inubushi
- Frontier
Research Center, Graduate School of Engineering, ‡Department of Applied
Chemistry, Graduate School of Engineering, and §Frontier Research Base for Young Researchers,
Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Hiroshi Uyama
- Frontier
Research Center, Graduate School of Engineering, ‡Department of Applied
Chemistry, Graduate School of Engineering, and §Frontier Research Base for Young Researchers,
Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Urara Hasegawa
- Frontier
Research Center, Graduate School of Engineering, ‡Department of Applied
Chemistry, Graduate School of Engineering, and §Frontier Research Base for Young Researchers,
Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
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99
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Shimada S, Wakayama K, Fukai M, Shimamura T, Ishikawa T, Fukumori D, Shibata M, Yamashita K, Kimura T, Todo S, Ohsawa I, Taketomi A. Hydrogen Gas Ameliorates Hepatic Reperfusion Injury After Prolonged Cold Preservation in Isolated Perfused Rat Liver. Artif Organs 2016; 40:1128-1136. [PMID: 27140066 DOI: 10.1111/aor.12710] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2015] [Revised: 12/30/2015] [Accepted: 01/07/2016] [Indexed: 12/12/2022]
Abstract
Hydrogen gas reduces ischemia and reperfusion injury (IRI) in the liver and other organs. However, the precise mechanism remains elusive. We investigated whether hydrogen gas ameliorated hepatic I/R injury after cold preservation. Rat liver was subjected to 48-h cold storage in University of Wisconsin solution. The graft was reperfused with oxygenated buffer with or without hydrogen at 37° for 90 min on an isolated perfusion apparatus, comprising the H2 (+) and H2 (-) groups, respectively. In the control group (CT), grafts were reperfused immediately without preservation. Graft function, injury, and circulatory status were assessed throughout the perfusion. Tissue samples at the end of perfusion were collected to determine histopathology, oxidative stress, and apoptosis. In the H2 (-) group, IRI was indicated by a higher aspartate aminotransferase (AST), alanine aminotransferase (ALT) leakage, portal resistance, 8-hydroxy-2-deoxyguanosine-positive cell rate, apoptotic index, and endothelial endothelin-1 expression, together with reduced bile production, oxygen consumption, and GSH/GSSG ratio (vs. CT). In the H2 (+) group, these harmful changes were significantly suppressed [vs. H2 (-)]. Hydrogen gas reduced hepatic reperfusion injury after prolonged cold preservation via the maintenance of portal flow, by protecting mitochondrial function during the early phase of reperfusion, and via the suppression of oxidative stress and inflammatory cascades thereafter.
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Affiliation(s)
| | | | - Moto Fukai
- Transplant Surgery, Hokkaido University Graduate School of Medicine
| | - Tsuyoshi Shimamura
- Central Clinical Facilities, Division of Organ Transplantation, Hokkaido University Hospital, Sapporo, Hokkaido, Japan
| | | | - Daisuke Fukumori
- Department of Surgical Gastroenterology and Transplantation, University of Copenhagen, Copenhagen, Denmark
| | - Maki Shibata
- Department of Biological Process of Aging, Tokyo Metropolitan Institute of Gerontology, Itabashi, Tokyo
| | | | - Taichi Kimura
- Laboratory of Cancer Research, Department of Pathology, Hokkaido University Graduate School of Medicine, Sapporo, Hokkaido
| | - Satoru Todo
- St. Maria Hospital Laboratory, Kurume, Fukuoka, Japan
| | - Ikuroh Ohsawa
- Department of Biological Process of Aging, Tokyo Metropolitan Institute of Gerontology, Itabashi, Tokyo
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100
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Nakagawa H. [Functional chemical donors for investigation of reactive sulfide species]. Nihon Yakurigaku Zasshi 2016; 147:294-298. [PMID: 27181725 DOI: 10.1254/fpj.147.294] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
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