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Jeitner TM, Azcona JA, Ables GP, Cooke D, Horowitz MC, Singh P, Kelly JM, Cooper AJL. Cystine rather than cysteine is the preferred substrate for β-elimination by cystathionine γ-lyase: implications for dietary methionine restriction. GeroScience 2024; 46:3617-3634. [PMID: 37217633 PMCID: PMC11229439 DOI: 10.1007/s11357-023-00788-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Accepted: 03/31/2023] [Indexed: 05/24/2023] Open
Abstract
Dietary methionine restriction (MR) increases longevity by improving health. In experimental models, MR is accompanied by decreased cystathionine β-synthase activity and increased cystathionine γ-lyase activity. These enzymes are parts of the transsulfuration pathway which produces cysteine and 2-oxobutanoate. Thus, the decrease in cystathionine β-synthase activity is likely to account for the loss of tissue cysteine observed in MR animals. Despite this decrease in cysteine levels, these tissues exhibit increased H2S production which is thought to be generated by β-elimination of the thiol moiety of cysteine, as catalyzed by cystathionine β-synthase or cystathionine γ-lyase. Another possibility for this H2S production is the cystathionine γ-lyase-catalyzed β-elimination of cysteine persulfide from cystine, which upon reduction yields H2S and cysteine. Here, we demonstrate that MR increases cystathionine γ-lyase production and activities in the liver and kidneys, and that cystine is a superior substrate for cystathionine γ-lyase catalyzed β-elimination as compared to cysteine. Moreover, cystine and cystathionine exhibit comparable Kcat/Km values (6000 M-1 s-1) as substrates for cystathionine γ-lyase-catalyzed β-elimination. By contrast, cysteine inhibits cystathionine γ-lyase in a non-competitive manner (Ki ~ 0.5 mM), which limits its ability to function as a substrate for β-elimination by this enzyme. Cysteine inhibits the enzyme by reacting with its pyridoxal 5'-phosphate cofactor to form a thiazolidine and in so doing prevents further catalysis. These enzymological observations are consistent with the notion that during MR cystathionine γ-lyase is repurposed to catabolize cystine and thereby form cysteine persulfide, which upon reduction produces cysteine.
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Affiliation(s)
- Thomas M Jeitner
- Department of Radiology, Weill Cornell Medicine, 1300 York Avenue, New York, NY, 10065, USA.
- Department of Biochemistry and Molecular Biology, New York Medical College, Valhalla, NY, 10595, USA.
| | - Juan A Azcona
- Department of Radiology, Weill Cornell Medicine, 1300 York Avenue, New York, NY, 10065, USA
- Department of Biochemistry and Molecular Biology, New York Medical College, Valhalla, NY, 10595, USA
| | - Gene P Ables
- Orentreich Foundation for the Advancement of Science, Inc, 855 Route 301, Cold Spring, NY, 10516, USA
| | - Diana Cooke
- Orentreich Foundation for the Advancement of Science, Inc, 855 Route 301, Cold Spring, NY, 10516, USA
| | - Mark C Horowitz
- Department of Orthopedics and Rehabilitation, Yale University School of Medicine, New Haven, CT, 06510, USA
| | - Pradeep Singh
- Department of Radiology, Weill Cornell Medicine, 1300 York Avenue, New York, NY, 10065, USA
| | - James M Kelly
- Department of Radiology, Weill Cornell Medicine, 1300 York Avenue, New York, NY, 10065, USA
- Citigroup Biomedical Imaging Center, Weill Cornell Medicine, 516 East 72Nd St, New York, NY, 10021, USA
| | - Arthur J L Cooper
- Department of Biochemistry and Molecular Biology, New York Medical College, Valhalla, NY, 10595, USA
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2
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Wu J, Barkat MQ, Su J, Wu F, Tan D, Shen T, He Q, Qu M, Lu M, Cai J, Wu X, Xu C. Inhibition of non-muscular myosin light chain kinase accelerates the clearance of inflammatory cells by promoting the lysosome-mediated cell death. Biomed Pharmacother 2024; 170:115986. [PMID: 38056232 DOI: 10.1016/j.biopha.2023.115986] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Revised: 12/01/2023] [Accepted: 12/02/2023] [Indexed: 12/08/2023] Open
Abstract
Infections like COVID-19 are the primary cause of death around the world because they can cause acute lung injury (ALI), acute respiratory distress syndrome (ARDS), and sepsis. Inflammatory cells serve as crucial protective barriers in these diseases. However, excessive accumulation of inflammatory cells is also one of the major causes of organ damage. The non-muscular myosin light chain kinase (nmMLCK) plays crucial of cytoskeletal components involved in endothelial cell-matrix and cell-cell adhesion, integrity, and permeability. Our previous investigations found that ML-7, a specific inhibitor of MLCK, promoted neutrophil apoptosis through various signaling pathways. In this study, we found that knockout of MLCK significantly promote apoptosis of neutrophils and macrophages in the BALF of the LPS-induced ALI, meanwhile it had no effect on the apoptosis of neutrophils in the circulatory system. RNA-sequencing revealed that the effect of MLCK knockout in inducing apoptosis of inflammatory cells was mediated through lysosomes. Administering ML-7 into the lungs significantly promoted neutrophil apoptosis, accelerating their clearance. In the LPS- or CLP-induced sepsis models, ML-7 administration significantly improves the apoptosis of inflammatory cells, especially neutrophils, at the infection site but had no impact on neutrophils in the circulatory system. ML-7 also significantly improved the survival rate of mice with LPS- or CLP-induced sepsis. Taken together, we found that MLCK plays a crucial role in the survival of inflammatory cells at the infection site. Inhibiting MLCK significantly induces apoptosis of inflammatory cells at the infection site, promoting inflammation resolution, with no impact of the circulatory system.
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Affiliation(s)
- Junsong Wu
- Department of Orthopaedics, the First Affiliated Hospital, Zhejiang University School of Medicine, 310003, China
| | - Muhammad Qasim Barkat
- Department of Pharmacology, Zhejiang University School of Medicine, Hangzhou 310058, China
| | - Jiakun Su
- Technology Center, China Tobacco Jiangxi Industrial Co. Ltd., Nanchang 330096, China
| | - Fugen Wu
- Department of Pediatrics, the First People's Hospital of Wenling City, Wenling 317500, China
| | - Dan Tan
- Department of Pharmacology, Zhejiang University School of Medicine, Hangzhou 310058, China
| | - Tingyu Shen
- Department of Pharmacology, Zhejiang University School of Medicine, Hangzhou 310058, China
| | - Qiangqiang He
- Department of Pharmacology, Zhejiang University School of Medicine, Hangzhou 310058, China
| | - Meiyu Qu
- Department of Pharmacology, Zhejiang University School of Medicine, Hangzhou 310058, China
| | - Meiping Lu
- National Clinical Research Center for Child Health, the Children's Hospital, Zhejiang University School of Medicine, Hangzhou 310006, China
| | - Jibao Cai
- Technology Center, China Tobacco Jiangxi Industrial Co. Ltd., Nanchang 330096, China
| | - Ximei Wu
- Department of Pharmacology, Zhejiang University School of Medicine, Hangzhou 310058, China.
| | - Chengyun Xu
- Department of Pharmacology, School of Medcine, Hangzhou City University, 310015, China.
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Manandhar S, Chambers S, Miller A, Ishii I, Bhatia M. Pharmacological Inhibition and Genetic Deletion of Cystathionine Gamma-Lyase in Mice Protects against Organ Injury in Sepsis: A Key Role of Adhesion Molecules on Endothelial Cells. Int J Mol Sci 2023; 24:13650. [PMID: 37686458 PMCID: PMC10487872 DOI: 10.3390/ijms241713650] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Revised: 08/29/2023] [Accepted: 08/30/2023] [Indexed: 09/10/2023] Open
Abstract
Hydrogen sulfide (H2S), synthesized by cystathionine gamma-lyase (Cth), contributes to the inflammatory response observed in sepsis. This study examines the effect of Cth-derived H2S in adhesion molecules on endothelial cells of vital organs in mice in a cecal ligation puncture (CLP)-induced model of sepsis, using two different and complementary approaches: Cth gene deletion and pharmacological inhibition. Our findings revealed a decreased level of H2S-synthesizing activity (via Cth) in both Cth-/- mice and PAG-treated wild-type (WT) mice following CLP-induced sepsis. Both treatment groups had reduced MPO activity and expression of chemokines (MCP-1 and MIP-2α), adhesion molecules (ICAM-1 and VCAM-1), ERK1/2 phosphorylation, and NF-κB in the liver and lung compared with in CLP-WT mice. Additionally, we found that PAG treatment in Cth-/- mice had no additional effect on the expression of ERK1/2 phosphorylation, NF-κB, or the production of chemokines and adhesion molecules in the liver and lung compared to Cth-/- mice following CLP-induced sepsis. The WT group with sepsis had an increased immunoreactivity of adhesion molecules on endothelial cells in the liver and lung than the WT sham-operated control. The Cth-/-, PAG-treated WT, and Cth-/- groups of mice showed decreased immunoreactivity of adhesion molecules on endothelial cells in the liver and lung following sepsis. Inhibition of H2S production via both approaches reduced adhesion molecule expression on endothelial cells and reduced liver and lung injury in mice with sepsis. In conclusion, this study demonstrates that H2S has an important role in the pathogenesis of sepsis and validates PAG use as a suited tool for investigating the Cth/H2S-signalling axis in sepsis.
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Affiliation(s)
- Sumeet Manandhar
- Department of Pathology and Biomedical Science, University of Otago, Christchurch 8140, New Zealand; (S.M.); (S.C.); (A.M.)
| | - Stephen Chambers
- Department of Pathology and Biomedical Science, University of Otago, Christchurch 8140, New Zealand; (S.M.); (S.C.); (A.M.)
| | - Andrew Miller
- Department of Pathology and Biomedical Science, University of Otago, Christchurch 8140, New Zealand; (S.M.); (S.C.); (A.M.)
| | - Isao Ishii
- Department of Health Chemistry, Showa Pharmaceutical University, Machida, Tokyo 194-8543, Japan;
| | - Madhav Bhatia
- Department of Pathology and Biomedical Science, University of Otago, Christchurch 8140, New Zealand; (S.M.); (S.C.); (A.M.)
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4
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Mao Z, Li H, Zhao XL, Zeng XH. Hydrogen sulfide protects Sertoli cells against toxicant Acrolein-induced cell injury. Food Chem Toxicol 2023; 176:113784. [PMID: 37059385 DOI: 10.1016/j.fct.2023.113784] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 04/09/2023] [Accepted: 04/11/2023] [Indexed: 04/16/2023]
Abstract
Acrolein (ACR), a highly toxic α,β-unsaturated aldehyde, is considered to be a common mediator behind the reproductive injury induced by various factors. However, the understanding of its reproductive toxicity and prevention in reproductive system is limited. Given that Sertoli cells provide the first-line defense against various toxicants and that dysfunction of Sertoli cell causes impaired spermatogenesis, we, therefore, examined ACR cytotoxicity in Sertoli cells and tested whether hydrogen sulfide (H2S), a gaseous mediator with potent antioxidative actions, could have a protective effect. Exposure of Sertoli cells to ACR led to cell injury, as indicated by reactive oxygen species (ROS) generation, protein oxidation, P38 activation and ultimately cell death that was prevented by antioxidant N-acetylcysteine (NAC). Further studies revealed that ACR cytotoxicity on Sertoli cells was significantly exacerbated by the inhibition of H2S-synthesizing enzyme cystathionine γ-lyase (CSE), while significantly suppressed by H2S donor Sodium hydrosulfide (NaHS). It was also attenuated by Tanshinone IIA (Tan IIA), an active ingredient of Danshen that stimulated H2S production in Sertoli cells. Apart from Sertoli cells, H2S also protected the cultured germ cells from ACR-initiated cell death. Collectively, our study characterized H2S as endogenous defensive mechanism against ACR in Sertoli cells and germ cells. This property of H2S could be used to prevent and treat ACR-related reproductive injury.
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Affiliation(s)
- Zhimin Mao
- Institute of Reproductive Medicine, Medical School, Nantong University, Nantong, Jiangsu, China.
| | - Haitao Li
- Institute of Reproductive Medicine, Medical School, Nantong University, Nantong, Jiangsu, China
| | - Xiu-Ling Zhao
- Institute of Reproductive Medicine, Medical School, Nantong University, Nantong, Jiangsu, China
| | - Xu-Hui Zeng
- Institute of Reproductive Medicine, Medical School, Nantong University, Nantong, Jiangsu, China.
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Lobov GI. Contractile Function of the Capsule of the Bovine Mesenteric Lymph Nodes at the Early Stage of Inflammation. J EVOL BIOCHEM PHYS+ 2022. [DOI: 10.1134/s0022093022060370] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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Oza PP, Kashfi K. Utility of NO and H 2S donating platforms in managing COVID-19: Rationale and promise. Nitric Oxide 2022; 128:72-102. [PMID: 36029975 PMCID: PMC9398942 DOI: 10.1016/j.niox.2022.08.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Revised: 08/01/2022] [Accepted: 08/10/2022] [Indexed: 01/08/2023]
Abstract
Viral infections are a continuing global burden on the human population, underscored by the ramifications of the COVID-19 pandemic. Current treatment options and supportive therapies for many viral infections are relatively limited, indicating a need for alternative therapeutic approaches. Virus-induced damage occurs through direct infection of host cells and inflammation-related changes. Severe cases of certain viral infections, including COVID-19, can lead to a hyperinflammatory response termed cytokine storm, resulting in extensive endothelial damage, thrombosis, respiratory failure, and death. Therapies targeting these complications are crucial in addition to antiviral therapies. Nitric oxide and hydrogen sulfide are two endogenous gasotransmitters that have emerged as key signaling molecules with a broad range of antiviral actions in addition to having anti-inflammatory properties and protective functions in the vasculature and respiratory system. The enhancement of endogenous nitric oxide and hydrogen sulfide levels thus holds promise for managing both early-stage and later-stage viral infections, including SARS-CoV-2. Using SARS-CoV-2 as a model for similar viral infections, here we explore the current evidence regarding nitric oxide and hydrogen sulfide's use to limit viral infection, resolve inflammation, and reduce vascular and pulmonary damage.
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Affiliation(s)
- Palak P Oza
- Department of Molecular, Cellular and Biomedical Sciences, Sophie Davis School of Biomedical Education, City University of New York School of Medicine, New York, NY, 10031, USA
| | - Khosrow Kashfi
- Department of Molecular, Cellular and Biomedical Sciences, Sophie Davis School of Biomedical Education, City University of New York School of Medicine, New York, NY, 10031, USA; Graduate Program in Biology, City University of New York Graduate Center, New York, 10091, USA.
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7
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Hydrogen Sulfide: A Gaseous Mediator and Its Key Role in Programmed Cell Death, Oxidative Stress, Inflammation and Pulmonary Disease. Antioxidants (Basel) 2022; 11:antiox11112162. [PMID: 36358533 PMCID: PMC9687070 DOI: 10.3390/antiox11112162] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2022] [Revised: 10/21/2022] [Accepted: 10/30/2022] [Indexed: 11/06/2022] Open
Abstract
Hydrogen sulfide (H2S) has been acknowledged as a novel gaseous mediator. The metabolism of H2S in mammals is tightly controlled and is mainly achieved by many physiological reactions catalyzed by a suite of enzymes. Although the precise actions of H2S in regulating programmed cell death, oxidative stress and inflammation are yet to be fully understood, it is becoming increasingly clear that H2S is extensively involved in these crucial processes. Since programmed cell death, oxidative stress and inflammation have been demonstrated as three important mechanisms participating in the pathogenesis of various pulmonary diseases, it can be inferred that aberrant H2S metabolism also functions as a critical contributor to pulmonary diseases, which has also been extensively investigated. In the meantime, substantial attention has been paid to developing therapeutic approaches targeting H2S for pulmonary diseases. In this review, we summarize the cutting-edge knowledge on the metabolism of H2S and the relevance of H2S to programmed cell death, oxidative stress and inflammation. We also provide an update on the crucial roles played by H2S in the pathogenesis of several pulmonary diseases. Finally, we discuss the perspective on targeting H2S metabolism in the treatment of pulmonary diseases.
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8
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Wang S, Ding Y, Jiang W. CSE/H2S ameliorates colitis in mice via protection of enteric glial cells and inhibition of the RhoA/ROCK pathway. Front Immunol 2022; 13:966881. [PMID: 36189321 PMCID: PMC9520914 DOI: 10.3389/fimmu.2022.966881] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2022] [Accepted: 08/26/2022] [Indexed: 11/19/2022] Open
Abstract
The enteric glial cells (EGCs) participate in the homeostasis of the gastrointestinal tract, and RhoA/ROCK signaling pathway plays a vital role in colonic tight junctions. Hydrogen sulfide (H2S) has been reported to alleviate colitis. However, the effect and mechanism of endogenous H2S on colitis remain unclear. This study established a Cystathionine-γ-lyase (CSE) knockout mouse model, a significant source of H2S production in the gut. The role of CSE-produced H2S on EGCs and the RhoA/ROCK signaling pathway was investigated in experimental colitis using CSE knockout (KO) and wild-type (WT) mice. CSE gene knockout animals presented with disease progression, more deteriorated clinical scores, colon shortening, and histological damage. EGCs dysfunction, characterized by decreased expression of the glial fibrillary acidic protein (GFAP), C3, and S100A10, was observed in the colon of WT and KO mice, especially in KO mice. RhoA/ROCK pathway was significantly upregulated in colon of colitis mice, which was more evident in KO mice. Pretreatment with NaHS, an exogenous H2S donor, significantly ameliorated mucosal injury and inhibited the expression of proinflammatory factors. Furthermore, we found that NaHS promoted the transformation of EGCs from “A1” to “A2” type, with decreased expression of C3 and increased expression of S100A10. These findings suggest that CSE/H2S protects mice from colon inflammation, which may be associated with preserving EGCs function by promoting EGCs transformation and inhibiting the RhoA/ROCK pathway.
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Affiliation(s)
- Song Wang
- Department of Gastroenterology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Yanyu Ding
- Department of Pharmacology, School of Basic Medical Sciences, Anhui Medical University, Hefei, China
| | - Wenjun Jiang
- Department of Gastroenterology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
- *Correspondence: Wenjun Jiang,
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Manandhar S, Scott-Thomas A, Harrington M, Sinha P, Pilbrow A, Richards AM, Cameron V, Bhatia M, Chambers ST. Hydrogen Sulfide and Substance P Levels in Patients with Escherichia coli and Klebsiella pneumoniae Bacteraemia. Int J Mol Sci 2022; 23:ijms23158639. [PMID: 35955767 PMCID: PMC9368963 DOI: 10.3390/ijms23158639] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Revised: 07/27/2022] [Accepted: 07/27/2022] [Indexed: 02/07/2023] Open
Abstract
Hydrogen sulfide (H2S) and substance P (SP) are known from animal models and in vitro studies as proinflammatory mediators. In this study, peripheral blood concentrations of H2S and SP were measured in patients with Escherichia coli or Klebsiella pneumoniae bacteraemia. Fifty patients were recruited from general wards at Christchurch Hospital, during 2020–2021. Samples from age- and sex-matched healthy subjects previously recruited as controls for studies of cardiovascular disease were used as controls. The concentrations of H2S were higher than controls on day 0, day 1, and day 2, and SP was higher than controls on all 4 days. The concentrations of H2S were highest on day 0, whereas SP concentrations were higher on day 2 than other days. Interleukin-6 and C-reactive protein were significantly higher on day 0 and day 1, respectively. The concentrations of H2S and SP did not differ between 15 non-septic (SIRS 0-1) and the 35 septic subjects (SIRS ≥ 2). Substance P concentrations were higher in subjects with abdominal infection than urinary tract infections on day 0 (p = 0.0002) and day 1 (p = 0.0091). In conclusion, the peak H2S concentrations precede the SP peak in patients with Gram-negative bacteraemia, but this response varies with the site of infection.
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Affiliation(s)
- Sumeet Manandhar
- Department of Pathology and Biomedical Science, University of Otago, Christchurch 8140, New Zealand; (S.M.); (A.S.-T.); (P.S.); (S.T.C.)
| | - Amy Scott-Thomas
- Department of Pathology and Biomedical Science, University of Otago, Christchurch 8140, New Zealand; (S.M.); (A.S.-T.); (P.S.); (S.T.C.)
| | - Michael Harrington
- Microbiology Department, Canterbury Health Laboratories, Christchurch 8140, New Zealand;
| | - Priyanka Sinha
- Department of Pathology and Biomedical Science, University of Otago, Christchurch 8140, New Zealand; (S.M.); (A.S.-T.); (P.S.); (S.T.C.)
| | - Anna Pilbrow
- Department of Medicine, University of Otago, Christchurch 8140, New Zealand; (A.P.); (A.M.R.); (V.C.)
| | - Arthur Mark Richards
- Department of Medicine, University of Otago, Christchurch 8140, New Zealand; (A.P.); (A.M.R.); (V.C.)
| | - Vicky Cameron
- Department of Medicine, University of Otago, Christchurch 8140, New Zealand; (A.P.); (A.M.R.); (V.C.)
| | - Madhav Bhatia
- Department of Pathology and Biomedical Science, University of Otago, Christchurch 8140, New Zealand; (S.M.); (A.S.-T.); (P.S.); (S.T.C.)
- Correspondence: ; Tel.: +64-3-378-6238
| | - Stephen T. Chambers
- Department of Pathology and Biomedical Science, University of Otago, Christchurch 8140, New Zealand; (S.M.); (A.S.-T.); (P.S.); (S.T.C.)
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Scheid S, Goeller M, Baar W, Wollborn J, Buerkle H, Schlunck G, Lagrèze W, Goebel U, Ulbrich F. Inhalative as well as Intravenous Administration of H 2S Provides Neuroprotection after Ischemia and Reperfusion Injury in the Rats' Retina. Int J Mol Sci 2022; 23:5519. [PMID: 35628328 PMCID: PMC9143628 DOI: 10.3390/ijms23105519] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Revised: 05/11/2022] [Accepted: 05/12/2022] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Neuronal ischemia-reperfusion injury (IRI), such as it can occur in glaucoma or strokes, is associated with neuronal cell death and irreversible loss of function of the affected tissue. Hydrogen sulfide (H2S) is considered a potentially neuroprotective substance, but the most effective route of application and the underlying mechanism remain to be determined. METHODS Ischemia-reperfusion injury was induced in rats by a temporary increase in intraocular pressure (1 h). H2S was then applied by inhalation (80 ppm at 0, 1.5, and 3 h after reperfusion) or by intravenous administration of the slow-releasing H2S donor GYY 4137. After 24 h, the retinas were harvested for Western blotting, qPCR, and immunohistochemical staining. Retinal ganglion cell survival was evaluated 7 days after ischemia. RESULTS Both inhalative and intravenously delivered H2S reduced retinal ganglion cell death with a better result from inhalative application. H2S inhalation for 1.5 h, as well as GYY 4137 treatment, increased p38 phosphorylation. Both forms of application enhanced the extracellular signal-regulated kinase 1/2 (ERK1/2) phosphorylation, and inhalation showed a significant increase at all three time points. H2S treatment also reduced apoptotic and inflammatory markers, such as caspase-3, intracellular adhesion molecule 1 (ICAM-1), vascular endothelial growth factor (VEGF), and inducible nitric oxide synthase (iNOS). The protective effect of H2S was partly abolished by the ERK1/2 inhibitor PD98059. Inhalative H2S also reduced the heat shock response including heme oxygenase (HO-1) and heat shock protein 70 (HSP-70) and the expression of radical scavengers such as superoxide dismutases (SOD1, SOD2) and catalase. CONCLUSION Hydrogen sulfide acts, at least in part, via the mitogen-activated protein kinase (MAPK) ERK1/2 to reduce apoptosis and inflammation. Both inhalative H2S and intravenous GYY 4137 administrations can improve neuronal cell survival.
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Affiliation(s)
- Stefanie Scheid
- Department of Anesthesiology and Critical Care, Medical Center-University of Freiburg, Faculty of Medicine, University of Freiburg, 79106 Freiburg, Germany; (S.S.); (M.G.); (W.B.); (J.W.); (H.B.)
| | - Max Goeller
- Department of Anesthesiology and Critical Care, Medical Center-University of Freiburg, Faculty of Medicine, University of Freiburg, 79106 Freiburg, Germany; (S.S.); (M.G.); (W.B.); (J.W.); (H.B.)
| | - Wolfgang Baar
- Department of Anesthesiology and Critical Care, Medical Center-University of Freiburg, Faculty of Medicine, University of Freiburg, 79106 Freiburg, Germany; (S.S.); (M.G.); (W.B.); (J.W.); (H.B.)
| | - Jakob Wollborn
- Department of Anesthesiology and Critical Care, Medical Center-University of Freiburg, Faculty of Medicine, University of Freiburg, 79106 Freiburg, Germany; (S.S.); (M.G.); (W.B.); (J.W.); (H.B.)
- Department of Anesthesiology, Perioperative and Pain Medicine, Brigham and Woman’s Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Hartmut Buerkle
- Department of Anesthesiology and Critical Care, Medical Center-University of Freiburg, Faculty of Medicine, University of Freiburg, 79106 Freiburg, Germany; (S.S.); (M.G.); (W.B.); (J.W.); (H.B.)
| | - Günther Schlunck
- Eye-Center, Medical Center-University of Freiburg, Faculty of Medicine, University of Freiburg, 79106 Freiburg, Germany; (G.S.); (W.L.)
| | - Wolf Lagrèze
- Eye-Center, Medical Center-University of Freiburg, Faculty of Medicine, University of Freiburg, 79106 Freiburg, Germany; (G.S.); (W.L.)
| | - Ulrich Goebel
- Department of Anesthesiology and Critical Care Medicine, St. Franziskus-Hospital, 48145 Muenster, Germany;
| | - Felix Ulbrich
- Department of Anesthesiology and Critical Care, Medical Center-University of Freiburg, Faculty of Medicine, University of Freiburg, 79106 Freiburg, Germany; (S.S.); (M.G.); (W.B.); (J.W.); (H.B.)
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11
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Xu M, Liu X, Bao P, Wang YJ, Lu J, Liu YJ. H2S Protects Against Immobilization-Induced Muscle Atrophy via Reducing Oxidative Stress and Inflammation. Front Physiol 2022; 13:844539. [PMID: 35464091 PMCID: PMC9019569 DOI: 10.3389/fphys.2022.844539] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Accepted: 03/24/2022] [Indexed: 12/12/2022] Open
Abstract
Chronic inflammation and oxidative stress are major triggers of the imbalance between protein synthesis and degradation during the pathogenesis of immobilization-induced muscle atrophy. This study aimed to elucidate the effects of hydrogen sulfide (H2S), a gas transmitter with potent anti-inflammatory and antioxidant properties, on immobilization-induced muscle atrophy. Mice were allocated to control and immobilization (IM) groups, which were treated with slow (GYY4137) or rapid (NaHS) H2S releasing donors for 14 days. The results showed that both GYY4137 and NaHS treatment reduced the IM-induced muscle loss, and increased muscle mass. The IM-induced expressions of Muscle RING finger 1 (MuRF1) and atrogin-1, two muscle-specific E3 ubiquitin ligases, were decreased by administration of GYY4137 or NaHS. Both GYY4137 and NaHS treatments alleviated the IM-induced muscle fibrosis, as evidenced by decreases in collagen deposition and levels of tissue fibrosis biomarkers. Moreover, administration of GYY4137 or NaHS alleviated the IM-induced infiltration of CD45 + leukocytes, meanwhile inhibited the expressions of the pro-inflammatory biomarkers in skeletal muscles. It was found that administration of either GYY4137 or NaHS significantly attenuated immobilization-induced oxidative stress as indicated by decreased H2O2 levels and 8-hydroxy-2′-deoxyguanosine (8-OHdG) immunoreactivity, as well as increased total antioxidant capacity (T-AOC), nuclear factor erythroid-2-related factor 2 (NRF2) and NRF2 downstream anti-oxidant targets levels in skeletal muscles. Collectively, the present study demonstrated that treatment with either slow or rapid H2S releasing donors protected mice against immobilization-induced muscle fibrosis and atrophy. The beneficial effects of H2S on immobilization-induced skeletal muscle atrophy might be due to both the anti-inflammatory and anti-oxidant properties of H2S.
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Affiliation(s)
- Miaomiao Xu
- School of Kinesiology, Shanghai University of Sport, Shanghai, China
| | - Xiaoguang Liu
- Guangzhou Sport University Sports and Health, Guangzhou Sport University, Guangzhou, China
| | - Peng Bao
- School of Kinesiology, Shanghai University of Sport, Shanghai, China
| | - Yan Jie Wang
- School of Kinesiology, Shanghai University of Sport, Shanghai, China
| | - Jianqiang Lu
- School of Kinesiology, Shanghai University of Sport, Shanghai, China
- *Correspondence: Jianqiang Lu, ; Yu Jian Liu,
| | - Yu Jian Liu
- School of Kinesiology, Shanghai University of Sport, Shanghai, China
- *Correspondence: Jianqiang Lu, ; Yu Jian Liu,
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12
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Gases in Sepsis: Novel Mediators and Therapeutic Targets. Int J Mol Sci 2022; 23:ijms23073669. [PMID: 35409029 PMCID: PMC8998565 DOI: 10.3390/ijms23073669] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 03/25/2022] [Accepted: 03/25/2022] [Indexed: 02/06/2023] Open
Abstract
Sepsis, a potentially lethal condition resulting from failure to control the initial infection, is associated with a dysregulated host defense response to pathogens and their toxins. Sepsis remains a leading cause of morbidity, mortality and disability worldwide. The pathophysiology of sepsis is very complicated and is not yet fully understood. Worse still, the development of effective therapeutic agents is still an unmet need and a great challenge. Gases, including nitric oxide (NO), carbon monoxide (CO) and hydrogen sulfide (H2S), are small-molecule biological mediators that are endogenously produced, mainly by enzyme-catalyzed reactions. Accumulating evidence suggests that these gaseous mediators are widely involved in the pathophysiology of sepsis. Many sepsis-associated alterations, such as the elimination of invasive pathogens, the resolution of disorganized inflammation and the preservation of the function of multiple organs and systems, are shaped by them. Increasing attention has been paid to developing therapeutic approaches targeting these molecules for sepsis/septic shock, taking advantage of the multiple actions played by NO, CO and H2S. Several preliminary studies have identified promising therapeutic strategies for gaseous-mediator-based treatments for sepsis. In this review article, we summarize the state-of-the-art knowledge on the pathophysiology of sepsis; the metabolism and physiological function of NO, CO and H2S; the crosstalk among these gaseous mediators; and their crucial effects on the development and progression of sepsis. In addition, we also briefly discuss the prospect of developing therapeutic interventions targeting these gaseous mediators for sepsis.
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13
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Jia Y, Wang Y, Zhang Y, Wang J, Pei Y, Wang Z, Li P, Han K. Profiling Cystathionine β/γ-Lyase in Complex Biosamples Using Novel Activatable Fluorogens. Anal Chem 2021; 94:1203-1210. [PMID: 34955022 DOI: 10.1021/acs.analchem.1c04393] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Cystathionine lyase, the key enzyme in transsulfuration and reverse transsulfuration pathways, is involved in a wide array of physiological and pathophysiological processes in both mammals and nonmammals. Though the biological significance of the hydrogen sulfide/cystathionine lyase system in disease states is extensively discussed, the absence of molecular methods for direct monitoring of cystathionine lyase in complex biosamples renders the result unreliable and perplexing. Here, we present the first attempt at designing and developing effective activatable fluorescent probes for cystathionine lyase based on the naphthylamide scaffold. CBLP and CSEP were designed based on the catalytic preference of cystathionine β-lyase (CBL) and cystathionine γ-lyase (CSE). Briefly, incorporation of cysteine/homocysteine as the recognition moiety and a carbamate ethyl sulfide group as a self-immolated linker proved to be an effective strategy for cystathionine lyase fluorescence reporting. CBLP exhibits high selectivity and sensitivity in vitro in semiquantifying CBL levels in roots of wild-type Arabidopsis thaliana and cbl mutants (cbl knockout: SALK_014740C, overexpressed: OE-CBL). Meanwhile, CSEP successfully detected CSE levels in HCC-LM3 cells, zebrafish models, and upregulated CSE in frozen section slides from the liver tissue of cecal ligation and puncture (CLP)-induced septic rats, which was also validated by Western blotting and immunohistochemical analysis. In summary, the practical design strategy facilitates profiling of cystathionine lyase activity in biological processes. It may pave the way for the development of accurate and efficient methods for the direct estimation of cystathionine lyase.
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Affiliation(s)
- Yan Jia
- State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Sciences (CAS), Dalian 116023, China
| | - Yiying Wang
- Institute of Molecular Sciences and Engineering, Shandong University, Qingdao 266237, China
| | - Yongli Zhang
- Department of Critical Care Medicine, The First Affiliated Hospital of Dalian Medical University, 222 Zhongshan Road, Dalian, Liaoning Province 116012, China
| | - Jiayue Wang
- Department of Pharmacy, Peking University Shenzhen Hospital, Shenzhen 518036, China
| | - Yanxi Pei
- School of Life Science, Shanxi University, Taiyuan 030006, China
| | - Zhiqing Wang
- School of Life Science, Shanxi University, Taiyuan 030006, China
| | - Peng Li
- Institute of Molecular Sciences and Engineering, Shandong University, Qingdao 266237, China
| | - Keli Han
- State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Sciences (CAS), Dalian 116023, China
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14
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Bhatia M, Gaddam RR. Hydrogen Sulfide in Inflammation: A Novel Mediator and Therapeutic Target. Antioxid Redox Signal 2021; 34:1368-1377. [PMID: 33138636 DOI: 10.1089/ars.2020.8211] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Significance: Inflammation is a normal response to injury, but uncontrolled inflammation can lead to several diseases. In recent years, research has shown endogenously synthesized hydrogen sulfide (H2S) to be a novel mediator of inflammation. This review summarizes the current understanding and recent advances of H2S role with respect to inflammation in different diseases. Recent Advances: Promising early results from clinical studies suggest an important role of H2S in human inflammatory disease. Critical Issues: Defining the precise mechanism by which H2S contributes to inflammation is a complex challenge, and there is active ongoing research that is focused on addressing this question. Most of this work has been conducted on animal models of human disease and isolated/cultured cells, and its translation to the clinic is another challenge in the area of H2S research. Future Directions: Defining the mechanism by which H2S acts as an inflammatory mediator will help us better understand different inflammatory diseases and help develop novel therapeutic approaches for these diseases.
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Affiliation(s)
- Madhav Bhatia
- Department of Pathology and Biomedical Science, University of Otago, Christchurch, Christchurch, New Zealand
| | - Ravinder Reddy Gaddam
- Department of Internal Medicine, Carver College of Medicine, University of Iowa, Iowa City, Iowa, USA
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15
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Liu Q, Zhong Y, Su Y, Zhao L, Peng J. Real-Time Imaging of Hepatic Inflammation Using Hydrogen Sulfide-Activatable Second Near-Infrared Luminescent Nanoprobes. NANO LETTERS 2021; 21:4606-4614. [PMID: 34014668 DOI: 10.1021/acs.nanolett.1c00548] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
The sensing and visualized monitoring of hydrogen sulfide (H2S) in vivo is crucial to understand its physiological and pathological roles in human health and diseases. Common methods for H2S detection require the destruction of the biosamples and are not suitable to be applied in vivo. In this Communication, we report a "turn-on" second near-infrared (NIR-II) luminescent approach for sensitive, real-time, and in situ H2S detection, which is based on the absorption competition between the H2S-responsive chromophores (compound 1) and the NIR-II luminescent lanthanide nanoparticles. Specifically, the luminescence was suppressed by compound 1 due to the competitive absorption of the incident light. In the presence of H2S, the compound 1 was bleached to recover the luminescence. Thanks to the deep tissue penetration depth and the low absorbance/scattering on biological samples of the NIR-II nanoprobes, the monitoring of the endogenous H2S in lipopolysaccharide-induced liver inflammation was achieved, which is unattainable by the conventional histopathological and serological approaches.
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Affiliation(s)
- Qin Liu
- State Key Laboratory of Natural Medicines, Key Laboratory of Drug Quality Control and Pharmacovigilance, Ministry of Education, School of Basic Medical Sciences and Clinical Pharmacy, China Pharmaceutical University, Nanjing, Jiangsu 211198, China
| | - Yang Zhong
- State Key Laboratory of Natural Medicines, Key Laboratory of Drug Quality Control and Pharmacovigilance, Ministry of Education, School of Basic Medical Sciences and Clinical Pharmacy, China Pharmaceutical University, Nanjing, Jiangsu 211198, China
| | - Yaoquan Su
- State Key Laboratory of Natural Medicines, Key Laboratory of Drug Quality Control and Pharmacovigilance, Ministry of Education, School of Basic Medical Sciences and Clinical Pharmacy, China Pharmaceutical University, Nanjing, Jiangsu 211198, China
| | - Lingzhi Zhao
- State Key Laboratory of Natural Medicines, Key Laboratory of Drug Quality Control and Pharmacovigilance, Ministry of Education, School of Basic Medical Sciences and Clinical Pharmacy, China Pharmaceutical University, Nanjing, Jiangsu 211198, China
| | - Juanjuan Peng
- State Key Laboratory of Natural Medicines, Key Laboratory of Drug Quality Control and Pharmacovigilance, Ministry of Education, School of Basic Medical Sciences and Clinical Pharmacy, China Pharmaceutical University, Nanjing, Jiangsu 211198, China
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16
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Chen YH, Teng X, Hu ZJ, Tian DY, Jin S, Wu YM. Hydrogen Sulfide Attenuated Sepsis-Induced Myocardial Dysfunction Through TLR4 Pathway and Endoplasmic Reticulum Stress. Front Physiol 2021; 12:653601. [PMID: 34177611 PMCID: PMC8220204 DOI: 10.3389/fphys.2021.653601] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2021] [Accepted: 05/05/2021] [Indexed: 12/11/2022] Open
Abstract
Aims: We examined the change in endogenous hydrogen sulfide (H2S) production and its role in sepsis-induced myocardial dysfunction (SIMD). Results: Significant elevations in plasma cardiac troponin I (cTnI), creatine kinase (CK), tumor necrosis factor-α (TNF-α), and interleukin-1β (IL-1β) were noted in SIMD patients, whereas left ventricular ejection fraction (LVEF), left ventricular fractional shortening (LVFS), and plasma H2S were significantly decreased relative to those in the controls. Plasma H2S was linearly related to LVEF and LVFS. Subsequently, an SIMD model was developed in mice by injecting lipopolysaccharide (LPS), and NaHS, an H2S donor, was used to elucidate the pathophysiological role of H2S. The mice showed decreased ventricular function and increased levels of TNF-α, IL-1β, cTnI, and CK after LPS injections. Toll-like receptor (TLR) 4 protein and endoplasmic reticulum stress (ERS) proteins were over expressed in the SIMD mice. All of the parameters above showed more noticeable variations in cystathionine γ-lyase knockout mice relative to those in wild type mice. The administration of NaHS could improve ventricular function and attenuate inflammation and ERS in the heart. Conclusion: Overall, these findings indicated that endogenous H2S deficiency contributed to SIMD and exogenous H2S ameliorated sepsis-induced myocardial dysfunction by suppressing inflammation and ERS via inhibition of the TLR4 pathway.
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Affiliation(s)
- Yu-Hong Chen
- Department of Physiology, Hebei Medical University, Shijiazhuang, China.,Department of Critical Care Medicine, The Fourth Hospital of Hebei Medical University, Shijiazhuang, China
| | - Xu Teng
- Department of Physiology, Hebei Medical University, Shijiazhuang, China
| | - Zhen-Jie Hu
- Department of Critical Care Medicine, The Fourth Hospital of Hebei Medical University, Shijiazhuang, China
| | - Dan-Yang Tian
- Department of Physiology, Hebei Medical University, Shijiazhuang, China
| | - Sheng Jin
- Department of Physiology, Hebei Medical University, Shijiazhuang, China
| | - Yu-Ming Wu
- Department of Physiology, Hebei Medical University, Shijiazhuang, China.,Hebei Collaborative Innovation Center for Cardio-Cerebrovascular Disease, Shijiazhuang, China.,Key Laboratory of Vascular Medicine of Hebei Province, Shijiazhuang, China
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17
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GYY4137 alleviates sepsis-induced acute lung injury in mice by inhibiting the PDGFRβ/Akt/NF-κB/NLRP3 pathway. Life Sci 2021; 271:119192. [PMID: 33577850 DOI: 10.1016/j.lfs.2021.119192] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2020] [Revised: 01/15/2021] [Accepted: 01/31/2021] [Indexed: 12/29/2022]
Abstract
AIMS GYY4137 [GYY, morpholin-4-ium-4-methoxyphenyl (morpholino) phosphinodithioate] is a novel and perfect hydrogen sulfide (H2S) donor that is stable in vivo and in vitro. H2S, along with CO and NO, has been recognized as the third physiological gas signaling molecule that plays an active role in fighting various lung infections. However, the mechanism by which GYY4137 affects cecal ligation and puncture (CLP)-induced acute lung injury (ALI) is not understood. This study aimed to investigate whether GYY4137 inhibits the activation of the pyrin domain-containing protein 3 (NLRP3) inflammasome by inhibiting the PDGFRβ/Akt/NF-κB pathway. MAIN METHODS The model of CLP-induced ALI was established in vivo. The mice were subsequently treated with GYY4137 (25 μg/g and 50 μg/g) to simulate the realistic conditions of pathogenesis. Western blotting and immunohistochemical staining were used to examine protein expression, hematoxylin and eosin staining was used for the histopathological analysis, and the levels of inflammatory factors were determined using enzyme-linked immunosorbent assays (ELISAs). KEY FINDINGS GYY4137 significantly increased the 7-day survival of mice with septic peritonitis and protected against CLP-induced ALI, including decreasing neutrophil infiltration, improving sepsis-induced lung histopathological changes, diminishing lung tissue damage, and attenuating the severity of lung injury in mice. The protective effect of GYY4137 was undoubtedly dose-dependent. We discovered that GYY4137 reduced the levels of the p-PDGFRβ, p-NF-κB, ASC, NLRP3, caspase-1, and p-Akt proteins in septic mouse lung tissue. Akt regulates the generation of proinflammatory cytokines in endotoxemia-associated ALI by enhancing the nuclear translocation of NF-κB. SIGNIFICANCE These results indicate a new molecular mechanism explaining the effect of GYY4137 on the treatment of CLP-induced ALI in mice.
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18
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Manandhar S, Sinha P, Ejiwale G, Bhatia M. Hydrogen Sulfide and its Interaction with Other Players in Inflammation. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2021; 1315:129-159. [PMID: 34302691 DOI: 10.1007/978-981-16-0991-6_6] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Hydrogen sulfide (H2S) plays a vital role in human physiology and in the pathophysiology of several diseases. In addition, a substantial role of H2S in inflammation has emerged. This chapter will discuss the involvement of H2S in various inflammatory diseases. Furthermore, the contribution of reactive oxygen species (ROS), adhesion molecules, and leukocyte recruitment in H2S-mediated inflammation will be discussed. The interrelationship of H2S with other gasotransmitters in inflammation will also be examined. There is mixed literature on the contribution of H2S to inflammation due to studies reporting both pro- and anti-inflammatory actions. These apparent discrepancies in the literature could be resolved with further studies.
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Affiliation(s)
- Sumeet Manandhar
- Department of Pathology and Biomedical Science, University of Otago, Christchurch, New Zealand
| | - Priyanka Sinha
- Department of Pathology and Biomedical Science, University of Otago, Christchurch, New Zealand
| | - Grace Ejiwale
- Department of Pathology and Biomedical Science, University of Otago, Christchurch, New Zealand
| | - Madhav Bhatia
- Department of Pathology and Biomedical Science, University of Otago, Christchurch, New Zealand.
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19
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Abstract
This review addresses the plausibility of hydrogen sulfide (H2S) therapy for acute lung injury (ALI) and circulatory shock, by contrasting the promising preclinical results to the present clinical reality. The review discusses how the narrow therapeutic window and width, and potentially toxic effects, the route, dosing, and timing of administration all have to be balanced out very carefully. The development of standardized methods to determine in vitro and in vivo H2S concentrations, and the pharmacokinetics and pharmacodynamics of H2S-releasing compounds is a necessity to facilitate the safety of H2S-based therapies. We suggest the potential of exploiting already clinically approved compounds, which are known or unknown H2S donors, as a surrogate strategy.
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20
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Rahman MA, Glasgow JN, Nadeem S, Reddy VP, Sevalkar RR, Lancaster JR, Steyn AJC. The Role of Host-Generated H 2S in Microbial Pathogenesis: New Perspectives on Tuberculosis. Front Cell Infect Microbiol 2020; 10:586923. [PMID: 33330130 PMCID: PMC7711268 DOI: 10.3389/fcimb.2020.586923] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Accepted: 10/13/2020] [Indexed: 12/14/2022] Open
Abstract
For centuries, hydrogen sulfide (H2S) was considered primarily as a poisonous gas and environmental hazard. However, with the discovery of prokaryotic and eukaryotic enzymes for H2S production, breakdown, and utilization, H2S has emerged as an important signaling molecule in a wide range of physiological and pathological processes. Hence, H2S is considered a gasotransmitter along with nitric oxide (•NO) and carbon monoxide (CO). Surprisingly, despite having overlapping functions with •NO and CO, the role of host H2S in microbial pathogenesis is understudied and represents a gap in our knowledge. Given the numerous reports that followed the discovery of •NO and CO and their respective roles in microbial pathogenesis, we anticipate a rapid increase in studies that further define the importance of H2S in microbial pathogenesis, which may lead to new virulence paradigms. Therefore, this review provides an overview of sulfide chemistry, enzymatic production of H2S, and the importance of H2S in metabolism and immunity in response to microbial pathogens. We then describe our current understanding of the role of host-derived H2S in tuberculosis (TB) disease, including its influences on host immunity and bioenergetics, and on Mycobacterium tuberculosis (Mtb) growth and survival. Finally, this review discusses the utility of H2S-donor compounds, inhibitors of H2S-producing enzymes, and their potential clinical significance.
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Affiliation(s)
| | - Joel N Glasgow
- Department of Microbiology, University of Alabama at Birmingham, Birmingham, AL, United States
| | - Sajid Nadeem
- Department of Microbiology, University of Alabama at Birmingham, Birmingham, AL, United States
| | - Vineel P Reddy
- Department of Microbiology, University of Alabama at Birmingham, Birmingham, AL, United States
| | - Ritesh R Sevalkar
- Department of Microbiology, University of Alabama at Birmingham, Birmingham, AL, United States
| | - Jack R Lancaster
- Department of Pharmacology and Chemical Biology, Vascular Medicine Institute, University of Pittsburgh School of Medicine, Pittsburgh, PA, United States
| | - Adrie J C Steyn
- Africa Health Research Institute, Durban, South Africa.,Department of Microbiology, University of Alabama at Birmingham, Birmingham, AL, United States.,Centers for AIDS Research and Free Radical Biology, University of Alabama at Birmingham, Birmingham, AL, United States
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21
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Burguera EF, Vela-Anero Á, Gato-Calvo L, Vaamonde-García C, Meijide-Faílde R, Blanco FJ. Hydrogen sulfide biosynthesis is impaired in the osteoarthritic joint. INTERNATIONAL JOURNAL OF BIOMETEOROLOGY 2020; 64:997-1010. [PMID: 31734816 DOI: 10.1007/s00484-019-01823-w] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2019] [Revised: 10/17/2019] [Accepted: 10/21/2019] [Indexed: 06/10/2023]
Abstract
Osteoarthritis (OA) is the most common form of arthritis and it is a leading cause of disability in the elderly. Its complete etiology is not known although there are several metabolic, genetic, epigenetic, and local contributing factors involved. At the moment, there is no cure for this pathology and treatment alternatives to retard or stop its progression are intensively being sought. Hydrogen sulfide (H2S) is a small gaseous molecule and is present in sulfurous mineral waters as its active component. Data from recent clinical trials shows that balneotherapy (immersion in mineral and/or thermal waters from natural springs) in sulfurous waters can improve OA symptoms, in particular, pain and function. Yet, the underlying mechanisms are poorly known. Hydrogen sulfide is also considered, with NO and CO, an endogenous signaling gasotransmitter. It is synthesized endogenously with the help of three enzymes, cystathionine gamma-lyase (CTH), cystathionine beta-synthase (CBS), and 3-mercaptopyruvate sulfurtransferase (3-MPST). Here, the expression of these three enzymes was demonstrated by quantitative real-time polymerase chain reaction (qRT-PCR) and their protein abundance [by immunohistochemistry and Western blot (WB)] in human articular cartilage. No significant differences were found in CBS or CTH expression or abundance, but mRNA and protein levels of 3-MPST were significantly reduced in cartilage form OA donors. Also, the biosynthesis of H2S from OA cartilage, measured with a specific microelectrode, was significantly lower than in OA-free tissue. Yet, no differences were found in H2S concentration in serum from OA patients and OA-free donors. The current results suggest that reduced levels of the mitochondrial enzyme 3-MPST in OA cartilage might be, at least in part, responsible for a reduction in H2S biosynthesis in this tissue and that impaired H2S biosynthesis in the joint might be a contributing factor to OA. This could contribute to explain why exogenous supplementation of H2S, for instance with sulfurous thermal water, has positive effects in OA patients.
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Affiliation(s)
- Elena F Burguera
- Grupo de Investigación en Reumatología (GIR), Agrupación Estratégica CICA-INIBIC, Complexo Hospitalario Universitario A Coruña, Sergas, Instituto de Investigación Biomédica A Coruña-INIBIC, As Xubias 84, 15006, A Coruña, Spain.
- CIBER-BBN, Madrid, Spain.
| | - Ángela Vela-Anero
- CIBER-BBN, Madrid, Spain
- Grupo de Terapia Celular e Medicina Regenerativa, Departamento de Fisioterapia, Medicina y Ciencias Biomédicas, Instituto de Investigación Biomédica de A Coruña (INIBIC), Complexo Hospitalario Universitario A Coruña, Sergas, Universidad de A Coruña, A Coruña, Spain
| | - Lucía Gato-Calvo
- Grupo de Investigación en Reumatología (GIR), Agrupación Estratégica CICA-INIBIC, Complexo Hospitalario Universitario A Coruña, Sergas, Instituto de Investigación Biomédica A Coruña-INIBIC, As Xubias 84, 15006, A Coruña, Spain
| | - Carlos Vaamonde-García
- Grupo de Terapia Celular e Medicina Regenerativa, Departamento de Fisioterapia, Medicina y Ciencias Biomédicas, Instituto de Investigación Biomédica de A Coruña (INIBIC), Complexo Hospitalario Universitario A Coruña, Sergas, Universidad de A Coruña, A Coruña, Spain
| | - Rosa Meijide-Faílde
- Grupo de Terapia Celular e Medicina Regenerativa, Departamento de Fisioterapia, Medicina y Ciencias Biomédicas, Instituto de Investigación Biomédica de A Coruña (INIBIC), Complexo Hospitalario Universitario A Coruña, Sergas, Universidad de A Coruña, A Coruña, Spain
| | - Francisco J Blanco
- Grupo de Investigación en Reumatología (GIR), Agrupación Estratégica CICA-INIBIC, Complexo Hospitalario Universitario A Coruña, Sergas, Instituto de Investigación Biomédica A Coruña-INIBIC, As Xubias 84, 15006, A Coruña, Spain.
- Grupo de Investigación en Reumatología (GIR), Departamento de Fisioterapia, Medicina y Ciencias Biomédicas, Instituto de Investigación Biomédica de A Coruña (INIBIC), Complexo Hospitalario Universitario A Coruña, Sergas, Universidad de A Coruña, A Coruña, Spain.
- ProteoRed/ISCIII, Madrid, Spain.
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22
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Qian Y, Altamimi A, Yates SA, Sarkar S, Cochran M, Zhou M, Levi-Polyachenko N, Matson JB. H 2S-releasing amphiphilic dipeptide hydrogels are potent S. aureus biofilm disruptors. Biomater Sci 2020; 8:2564-2576. [PMID: 32232239 PMCID: PMC7250531 DOI: 10.1039/d0bm00241k] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
As a gasotransmitter, hydrogen sulfide (H2S) has been studied to treat wounds and inflammation, but its potential antimicrobial effects in this context have not been evaluated. An H2S-releasing dipeptide hydrogel (S-FE), and several non-H2S-releasing control dipeptides, (C-FE, C-GE, FBA-FE, and FE where S = S-aroylthiooxime, an H2S donor; C = control, an oxime incapable of H2S release; FBA = 4-formylbenzamide, also incapable of H2S release; and E, F, G = glutamic acid, phenylalanine, and glycine, respectively), were studied to correlate differences in their chemical structures and H2S-releasing abilities with their antimicrobial effects on Staphylococcus aureus bacteria. Dipeptides with Phe (S-FE, C-FE, and FE) self-assembled into nanoribbons in water and displayed β-sheet formation and enhanced fluorescence, while the other two dipeptides (FBA-FE and C-GE) did not form assemblies in water. In vitro experiments with Staphylococcus aureus, which is a commonly found bacterium associated with wounds, showed significant antimicrobial effects from some of the dipeptides. Dipeptide S-FE inhibited bacterial growth more effectively than any of the controls, thereby limiting biofilm formation or disrupting established biofilms. These antimicrobial H2S-releasing dipeptide hydrogels provide a promising new approach to treat wound infections.
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Affiliation(s)
- Yun Qian
- Department of Chemistry, Macromolecules Innovation Institute, and Virginia Tech Center for Drug Discovery, Virginia Tech, Blacksburg, VA 24061
| | - Afnan Altamimi
- Department of Plastic and Reconstructive Surgery, Wake Forest School of Medicine, Winston Salem, NC, USA
- King Saud University, College of Medicine, Department of Surgery, Riyadh, Saudi Arabia
| | - Shaina Alston Yates
- Department of Plastic and Reconstructive Surgery, Wake Forest School of Medicine, Winston Salem, NC, USA
| | - Santu Sarkar
- Department of Plastic and Reconstructive Surgery, Wake Forest School of Medicine, Winston Salem, NC, USA
| | - Matthew Cochran
- Department of Plastic and Reconstructive Surgery, Wake Forest School of Medicine, Winston Salem, NC, USA
| | - Mingjun Zhou
- Department of Chemistry, Macromolecules Innovation Institute, and Virginia Tech Center for Drug Discovery, Virginia Tech, Blacksburg, VA 24061
| | - Nicole Levi-Polyachenko
- Department of Plastic and Reconstructive Surgery, Wake Forest School of Medicine, Winston Salem, NC, USA
| | - John B. Matson
- Department of Chemistry, Macromolecules Innovation Institute, and Virginia Tech Center for Drug Discovery, Virginia Tech, Blacksburg, VA 24061
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23
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Hydrogen sulfide dysregulates the immune response by suppressing central carbon metabolism to promote tuberculosis. Proc Natl Acad Sci U S A 2020; 117:6663-6674. [PMID: 32139610 PMCID: PMC7104411 DOI: 10.1073/pnas.1919211117] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
The ubiquitous gasotransmitter hydrogen sulfide (H2S) has been recognized to play a crucial role in human health. Using cystathionine γ-lyase (CSE)-deficient mice, we demonstrate an unexpected role of H2S in Mycobacterium tuberculosis (Mtb) pathogenesis. We showed that Mtb-infected CSE-/- mice survive longer than WT mice, and support reduced pathology and lower bacterial burdens in the lung, spleen, and liver. Similarly, in vitro Mtb infection of macrophages resulted in reduced colony forming units in CSE-/- cells. Chemical complementation of infected WT and CSE-/- macrophages using the slow H2S releaser GYY3147 and the CSE inhibitor DL-propargylglycine demonstrated that H2S is the effector molecule regulating Mtb survival in macrophages. Furthermore, we demonstrate that CSE promotes an excessive innate immune response, suppresses the adaptive immune response, and reduces circulating IL-1β, IL-6, TNF-α, and IFN-γ levels in response to Mtb infection. Notably, Mtb infected CSE-/- macrophages show increased flux through glycolysis and the pentose phosphate pathway, thereby establishing a critical link between H2S and central metabolism. Our data suggest that excessive H2S produced by the infected WT mice reduce HIF-1α levels, thereby suppressing glycolysis and production of IL-1β, IL-6, and IL-12, and increasing bacterial burden. Clinical relevance was demonstrated by the spatial distribution of H2S-producing enzymes in human necrotic, nonnecrotic, and cavitary pulmonary tuberculosis (TB) lesions. In summary, CSE exacerbates TB pathogenesis by altering immunometabolism in mice and inhibiting CSE or modulating glycolysis are potential targets for host-directed TB control.
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24
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Liu L, Zhou M, Zhu R, Zhou J, Ni L, Wang Z, Liu N, Zhu F, Shi T, Deng Z, Wang Y, Tian Y, Li R, Yang H, Wang Z, Jiang J, Xu Y. Hydrogen sulfide protects against particle-induced inflammatory response and osteolysis via SIRT1 pathway in prosthesis loosening. FASEB J 2020; 34:3743-3754. [PMID: 31943384 DOI: 10.1096/fj.201900393rr] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2019] [Revised: 11/16/2019] [Accepted: 12/19/2019] [Indexed: 01/01/2023]
Abstract
Wear debris-induced osteolysis and ensuing aseptic loosening is the main cause of implant failure and revision surgery. Wear debris-induced inflammatory response plays key roles in peri-implant osteolysis. Recently, substantial of evidence suggests that hydrogen sulfide (H2 S), the third gasotransmitter, is a critical player regulating inflammation. However, the role and therapeutic potential of H2 S in wear debris-induced inflammation and osteolysis remains to be defined. In the present study, we investigated the effect of H2 S on wear debris-induced pro-inflammatory cytokines expression and osteolysis in vitro and in vivo. With a slow-releasing H2 S donor GYY4137, our study demonstrated that H2 S attenuated wear debris-induced osteolysis and osteoclastogenesis in murine calvaria resorption models. The expression of tumor necrosis factor-alpha (TNF-α), interleukin-1β (IL-1β), and interleukin-6 (IL-6) that stimulated by wear particles were significantly reduced by GYY4137. Further, the level of sirtuin 1 (SIRT1), which possesses anti-inflammation property, was examined in vivo and in macrophages. And we found that wear debris decreased the expression of SIRT1. Cotreated macrophages with GYY4137 in part reversed the decline of SIRT1. More importantly, with the SIRT1 recombinant lentivirus and small interfering RNAs (siRNA) against SIRT1, our data indicated that SIRT1 mediated the inhibitory effects of GYY4137 on wear debris-induced inflammation. Collectively, these results suggested that exogenous H2 S production (via H2 S donors) may represent a potential approach for the treatment of wear particle-induced osteolysis.
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Affiliation(s)
- Lei Liu
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, Soochow, China.,Department of Orthopedics, The Affiliated Yixing Hospital of Jiangsu University, Yixing, China.,The Affiliated Yixing Clinical School of Medical School of Yangzhou University, Yixing, China
| | - Ming Zhou
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, Soochow, China.,Department of Orthopedics, The Affiliated Yixing Hospital of Jiangsu University, Yixing, China
| | - Ruofu Zhu
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, Soochow, China
| | - Jun Zhou
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, Soochow, China
| | - Li Ni
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, Soochow, China
| | - Zhidong Wang
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, Soochow, China
| | - Naicheng Liu
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, Soochow, China
| | - Feng Zhu
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, Soochow, China
| | - Tongguo Shi
- Jiangsu Institute of Clinical Immunology, The First Affiliated Hospital of Soochow, Soochow, China
| | - Zhantao Deng
- Division of Orthopedics Surgery, Department of Surgery, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Yong Wang
- Department of Orthopedics, The Affiliated Yixing Hospital of Jiangsu University, Yixing, China
| | - Yixing Tian
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, Soochow, China
| | - Rongqun Li
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, Soochow, China
| | - Huilin Yang
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, Soochow, China
| | - Zhenheng Wang
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, Soochow, China
| | - Jiannong Jiang
- Department of Orthopedics, The Affiliated Yixing Hospital of Jiangsu University, Yixing, China.,The Affiliated Yixing Clinical School of Medical School of Yangzhou University, Yixing, China
| | - Yaozeng Xu
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, Soochow, China
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25
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Gaddam RR, Chambers S, Fraser R, Cogger VC, Le Couteur DG, Ishii I, Bhatia M. Cystathionine-Gamma-Lyase-Derived Hydrogen Sulfide-Regulated Substance P Modulates Liver Sieve Fenestrations in Caecal Ligation and Puncture-Induced Sepsis. Int J Mol Sci 2019; 20:ijms20133191. [PMID: 31261857 PMCID: PMC6651477 DOI: 10.3390/ijms20133191] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2019] [Revised: 06/27/2019] [Accepted: 06/27/2019] [Indexed: 12/20/2022] Open
Abstract
Cystathionine-γ-lyase (CSE) isa hydrogen sulfide (H2S)-synthesizing enzyme that promotesinflammation by upregulating H2S in sepsis. Liver sinusoidal endothelial cells (LSECs) are fenestrated endothelial cells (liver sieve) that undergo alteration during sepsis and H2S plays a role in this process. Substance P (SP) is encoded by the preprotachykinin A (PPTA) gene, and promotes inflammation in sepsis; however, its regulation by H2S is poorly understood. Furthermore, the interaction between H2S and SP in modulating LSEC fenestrations following sepsis remains unclear. This study aimed to investigate whether CSE/H2S regulates SP and the neurokinin-1 receptor (NK-1R) andmodulates fenestrations in LSECs following caecalligation and puncture (CLP)-induced sepsis. Here we report thatthe absence of either CSE or H2S protects against liver sieve defenestration and gaps formation in LSECsin sepsis by decreased SP-NK-1R signaling. Following sepsis, there is an increased expression of liver CSE and H2S synthesis, and plasma H2S levels, which were aligned with higher SP levels in the liver, lungs and plasma and NK-1R in the liver and lungs. The genetic deletion of CSE led to decreased sepsis-induced SP and NK-1R in the liver, lungs and plasma SP suggesting H2S synthesized through CSE regulates the SP-NK-1R pathway in sepsis. Further, mice deficient in the SP-encoding gene (PPTA) preservedsepsis-induced LSEC defenestrationand gaps formation, as seen by maintenance of patent fenestrations and fewer gaps. In conclusion, CSE/H2S regulates SP-NK-1R and modulates LSEC fenestrations in sepsis.
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Affiliation(s)
- Ravinder R Gaddam
- Department of Pathology and Biomedical Science, University of Otago, Christchurch 8140, New Zealand
| | - Stephen Chambers
- Department of Pathology and Biomedical Science, University of Otago, Christchurch 8140, New Zealand
| | - Robin Fraser
- Department of Pathology and Biomedical Science, University of Otago, Christchurch 8140, New Zealand
| | - Victoria C Cogger
- Ageing and Alzheimers Institute, ANZAC Research Institute, University of Sydney and Concord Hospital, Sydney 2139, Australia
| | - David G Le Couteur
- Ageing and Alzheimers Institute, ANZAC Research Institute, University of Sydney and Concord Hospital, Sydney 2139, Australia
| | - Isao Ishii
- Showa Pharmaceutical University, Machida 194-8543, Japan
| | - Madhav Bhatia
- Department of Pathology and Biomedical Science, University of Otago, Christchurch 8140, New Zealand.
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26
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Benchoam D, Cuevasanta E, Möller MN, Alvarez B. Hydrogen Sulfide and Persulfides Oxidation by Biologically Relevant Oxidizing Species. Antioxidants (Basel) 2019; 8:antiox8020048. [PMID: 30813248 PMCID: PMC6406583 DOI: 10.3390/antiox8020048] [Citation(s) in RCA: 57] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2019] [Revised: 02/15/2019] [Accepted: 02/19/2019] [Indexed: 12/12/2022] Open
Abstract
Hydrogen sulfide (H2S/HS–) can be formed in mammalian tissues and exert physiological effects. It can react with metal centers and oxidized thiol products such as disulfides (RSSR) and sulfenic acids (RSOH). Reactions with oxidized thiol products form persulfides (RSSH/RSS–). Persulfides have been proposed to transduce the signaling effects of H2S through the modification of critical cysteines. They are more nucleophilic and acidic than thiols and, contrary to thiols, also possess electrophilic character. In this review, we summarize the biochemistry of hydrogen sulfide and persulfides, focusing on redox aspects. We describe biologically relevant one- and two-electron oxidants and their reactions with H2S and persulfides, as well as the fates of the oxidation products. The biological implications are discussed.
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Affiliation(s)
- Dayana Benchoam
- Laboratorio de Enzimología, Instituto de Química Biológica, Facultad de Ciencias, Universidad de la República, Montevideo 11400, Uruguay.
- Center for Free Radical and Biomedical Research, Universidad de la República, Montevideo 11800, Uruguay.
| | - Ernesto Cuevasanta
- Laboratorio de Enzimología, Instituto de Química Biológica, Facultad de Ciencias, Universidad de la República, Montevideo 11400, Uruguay.
- Center for Free Radical and Biomedical Research, Universidad de la República, Montevideo 11800, Uruguay.
- Unidad de Bioquímica Analítica, Centro de Investigaciones Nucleares, Facultad de Ciencias, Universidad de la República, Montevideo 11400, Uruguay.
| | - Matías N Möller
- Center for Free Radical and Biomedical Research, Universidad de la República, Montevideo 11800, Uruguay.
- Laboratorio de Fisicoquímica Biológica, Instituto de Química Biológica, Facultad de Ciencias, Universidad de la República, Montevideo 11400, Uruguay.
| | - Beatriz Alvarez
- Laboratorio de Enzimología, Instituto de Química Biológica, Facultad de Ciencias, Universidad de la República, Montevideo 11400, Uruguay.
- Center for Free Radical and Biomedical Research, Universidad de la República, Montevideo 11800, Uruguay.
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27
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Jiang L, Jiang Q, Yang S, Huang S, Han X, Duan J, Pan S, Zhao M, Guo S. GYY4137 attenuates LPS-induced acute lung injury via heme oxygenase-1 modulation. Pulm Pharmacol Ther 2018; 54:77-86. [PMID: 30605726 DOI: 10.1016/j.pupt.2018.12.004] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/22/2018] [Revised: 12/16/2018] [Accepted: 12/30/2018] [Indexed: 12/16/2022]
Abstract
GYY4137, a slow-releasing hydrogen sulfide (H2S) donor, has been reported to exert anti-inflammatory activity and protect against sepsis. Heme oxygenase-1 (HO-1) is an important anti-inflammatory heat shock protein and plays a similar effect on sepsis. This study investigated the role of GYY4137 in acute lung injury (ALI) via HO-1 regulation. Lung injury was assessed in mice challenged with intratracheal lipopolysaccharide (LPS) and the mechanism of anti-inflammatory effects of GYY4137 was investigated in mice and RAW264.7 cells. GYY4137 reduced the LPS-mediated pulmonary injury and neutrophil infiltration, and inhibited the LPS-induced production of proinflammatory cytokines, inducible nitric oxide synthase (iNOS) and cyclooxygenase-2 (COX-2) expression. Moreover, GYY4137 suppressed the LPS-evoked NF-κB activation in RAW264.7 cells. GYY4137, not time-expired GYY4137 significantly induced HO-1 expression compared with the LPS group. The beneficial effects of GYY4137 above were reversed by the HO-1 inhibitor tin protoporphyrin (SnPP). These results suggest an anti-inflammatory effect and a therapeutic role of GYY4137 in LPS-induced ALI via HO-1 regulation.
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Affiliation(s)
- Lei Jiang
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Qing Jiang
- School of Statistics, Beijing Normal University, Beijing, China
| | - Songlin Yang
- Department of ICU, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Shicong Huang
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Xiaoli Han
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Jun Duan
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Shangha Pan
- The Key Hepatosplenic Surgery Laboratory, Department of General Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Mingyan Zhao
- Department of ICU, The First Affiliated Hospital of Harbin Medical University, Harbin, China.
| | - Shuliang Guo
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China.
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28
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Abstract
Sepsis was known to ancient Greeks since the time of great physician Hippocrates (460-377 BC) without exact information regarding its pathogenesis. With time and medical advances, it is now considered as a condition associated with organ dysfunction occurring in the presence of systemic infection as a result of dysregulation of the immune response. Still with this advancement, we are struggling for the development of target-based therapeutic approach for the management of sepsis. The advancement in understanding the immune system and its working has led to novel discoveries in the last 50 years, including different pattern recognition receptors. Inflammasomes are also part of these novel discoveries in the field of immunology which are <20 years old in terms of their first identification. They serve as important cytosolic pattern recognition receptors required for recognizing cytosolic pathogens, and their pathogen-associated molecular patterns play an important role in the pathogenesis of sepsis. The activation of both canonical and non-canonical inflammasome signaling pathways is involved in mounting a proinflammatory immune response via regulating the generation of IL-1β, IL-18, IL-33 cytokines and pyroptosis. In addition to pathogens and their pathogen-associated molecular patterns, death/damage-associated molecular patterns and other proinflammatory molecules involved in the pathogenesis of sepsis affect inflammasomes and vice versa. Thus, the present review is mainly focused on the inflammasomes, their role in the regulation of immune response associated with sepsis, and their targeting as a novel therapeutic approach.
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Affiliation(s)
- Vijay Kumar
- Children's Health Queensland Clinical Unit, School of Clinical Medicine, Faculty of Medicine, Mater Research, University of Queensland, Brisbane, Australia,
- School of Biomedical Sciences, Faculty of Medicine, University of Queensland, Brisbane, Australia,
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29
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Fagone P, Mazzon E, Bramanti P, Bendtzen K, Nicoletti F. Gasotransmitters and the immune system: Mode of action and novel therapeutic targets. Eur J Pharmacol 2018; 834:92-102. [PMID: 30016662 DOI: 10.1016/j.ejphar.2018.07.026] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2018] [Revised: 06/29/2018] [Accepted: 07/13/2018] [Indexed: 12/12/2022]
Abstract
Gasotransmitters are a group of gaseous molecules, with pleiotropic biological functions. These molecules include nitric oxide (NO), hydrogen sulfide (H2S), and carbon monoxide (CO). Abnormal production and metabolism of these molecules have been observed in several pathological conditions. The understanding of the role of gasotransmitters in the immune system has grown significantly in the past years, and independent studies have shed light on the effect of exogenous and endogenous gasotransmitters on immune responses. Moreover, encouraging results come from the efficacy of NO-, CO- and H2S -donors in preclinical animal models of autoimmune, acute and chronic inflammatory diseases. To date, data on the influence of gasotransmitters in immunity and immunopathology are often scattered and partial, and the scarcity of clinical trials using NO-, CO- and H2S -donors, reveals that more effort is warranted. This review focuses on the role of gasotransmitters in the immune system and covers the evidences on the possible use of gasotransmitters for the treatment of inflammatory conditions.
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Affiliation(s)
- Paolo Fagone
- Department of Biomedical and Biotechnological Sciences, University of Catania, Catania, Italy
| | - Emanuela Mazzon
- IRCCS Centro Neurolesi Bonino Pulejo, Stada Statale 113, C.da Casazza, 98124 Messina, Italy
| | - Placido Bramanti
- IRCCS Centro Neurolesi Bonino Pulejo, Stada Statale 113, C.da Casazza, 98124 Messina, Italy
| | - Klaus Bendtzen
- Institute for Inflammation Research, Rigshospitalet, Copenhagen, Denmark
| | - Ferdinando Nicoletti
- Department of Biomedical and Biotechnological Sciences, University of Catania, Catania, Italy.
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30
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Abstract
Hydrogen sulfide (H2S) is a novel signaling molecule most recently found to be of fundamental importance in cellular function as a regulator of apoptosis, inflammation, and perfusion. Mechanisms of endogenous H2S signaling are poorly understood; however, signal transmission is thought to occur via persulfidation at reactive cysteine residues on proteins. Although much has been discovered about how H2S is synthesized in the body, less is known about how it is metabolized. Recent studies have discovered a multitude of different targets for H2S therapy, including those related to protein modification, intracellular signaling, and ion channel depolarization. The most difficult part of studying hydrogen sulfide has been finding a way to accurately and reproducibly measure it. The purpose of this review is to: elaborate on the biosynthesis and catabolism of H2S in the human body, review current knowledge of the mechanisms of action of this gas in relation to ischemic injury, define strategies for physiological measurement of H2S in biological systems, and review potential novel therapies that use H2S for treatment.
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31
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Filipovic MR, Zivanovic J, Alvarez B, Banerjee R. Chemical Biology of H 2S Signaling through Persulfidation. Chem Rev 2018; 118:1253-1337. [PMID: 29112440 PMCID: PMC6029264 DOI: 10.1021/acs.chemrev.7b00205] [Citation(s) in RCA: 599] [Impact Index Per Article: 99.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Signaling by H2S is proposed to occur via persulfidation, a posttranslational modification of cysteine residues (RSH) to persulfides (RSSH). Persulfidation provides a framework for understanding the physiological and pharmacological effects of H2S. Due to the inherent instability of persulfides, their chemistry is understudied. In this review, we discuss the biologically relevant chemistry of H2S and the enzymatic routes for its production and oxidation. We cover the chemical biology of persulfides and the chemical probes for detecting them. We conclude by discussing the roles ascribed to protein persulfidation in cell signaling pathways.
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Affiliation(s)
- Milos R. Filipovic
- Univeristy of Bordeaux, IBGC, UMR 5095, F-33077 Bordeaux, France
- CNRS, IBGC, UMR 5095, F-33077 Bordeaux, France
| | - Jasmina Zivanovic
- Univeristy of Bordeaux, IBGC, UMR 5095, F-33077 Bordeaux, France
- CNRS, IBGC, UMR 5095, F-33077 Bordeaux, France
| | - Beatriz Alvarez
- Laboratorio de Enzimología, Facultad de Ciencias and Center for Free Radical and Biomedical Research, Universidad de la Republica, 11400 Montevideo, Uruguay
| | - Ruma Banerjee
- Department of Biological Chemistry, University of Michigan Medical School, Ann Arbor, Michigan 48109-0600, United States
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32
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Ahmad A, Druzhyna N, Szabo C. Delayed Treatment with Sodium Hydrosulfide Improves Regional Blood Flow and Alleviates Cecal Ligation and Puncture (CLP)-Induced Septic Shock. Shock 2018; 46:183-93. [PMID: 26863032 DOI: 10.1097/shk.0000000000000589] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Cecal ligation and puncture (CLP)-induced sepsis is a serious medical condition, caused by a severe systemic infection resulting in a systemic inflammatory response. Recent studies have suggested the therapeutic potential of donors of hydrogen sulfide (H2S), a novel endogenous gasotransmitter and biological mediator in various diseases. The aim of the present study was to assess the effect of H2S supplementation in sepsis, with special reference to its effect on the modulation of regional blood flow. We infused sodium hydrosulfide (NaHS), a compound that produces H2S in aqueous solution (1, 3, or 10 mg/kg/h, for 1 h at each dose level) in control rats or rats 24 h after CLP, and measured blood flow using fluorescent microspheres. In normal control animals, NaHS induced a characteristic redistribution of blood flow, and reduced cardiac, hepatic, and renal blood flow in a dose-dependent fashion. In contrast, in rats subjected to CLP, cardiac, hepatic, and renal blood flow was significantly reduced; infusion of NaHS (1 mg/kg/h and 3 mg/kg/h) significantly increased organ blood flow. In other words, the effect of H2S on regional blood flow is dependent on the status of the animals (i.e., a decrease in blood flow in normal controls, but an increase in blood flow in CLP). We have also evaluated the effect of delayed treatment with NaHS on organ dysfunction and the inflammatory response by treating the animals with NaHS (3 mg/kg) intraperitoneally (i.p.) at 24 h after the start of the CLP procedure; plasma levels of various cytokines and tissue indicators of inflammatory cell infiltration and oxidative stress were measured 6 h later. After 24 h of CLP, glomerular function was significantly impaired, as evidenced by markedly increased (over 4-fold over baseline) blood urea nitrogen and creatinine levels; this increase was also significantly reduced by treatment with NaHS. NaHS also attenuated the CLP-induced increases in malondialdehyde levels (an index of oxidative stress) in heart as well as in liver and myeloperoxidase levels (an index of neutrophil infiltration) in heart and lung. Plasma levels of IL-1β, IL-5, IL-6, TNF-α, and HMGB1 were attenuated by NaHS. Treatment of NaHS at 3 mg/kg i.p. (but not 1 mg/kg or 6 mg/kg), starting 24 h post-CLP, with dosing repeated every 6 h, improved the survival rate in CLP animals. In summary, treatment with 3 mg/kg H2S-when started in a delayed manner, when CLP-induced organ injury, inflammation and blood flow redistribution have already ensued-improves blood flow to several organs, protects against multiple organ failure, and reduces the plasma levels of multiple pro-inflammatory mediators. These findings support the view that H2S donation may have therapeutic potential in sepsis.
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Affiliation(s)
- Akbar Ahmad
- *Department of Anesthesiology, The University of Texas Medical Branch, Galveston, Texas †Shriners Hospital for Children, Galveston, Texas
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33
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Soriano RN, Braga SP, Breder JSC, Batalhao ME, Oliveira-Pelegrin GR, Ferreira LFR, Rocha MJA, Carnio EC, Branco LGS. Endogenous peripheral hydrogen sulfide is propyretic: its permissive role in brown adipose tissue thermogenesis in rats. Exp Physiol 2018; 103:397-407. [PMID: 29210120 DOI: 10.1113/ep086775] [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: 11/01/2017] [Accepted: 11/28/2017] [Indexed: 11/08/2022]
Abstract
NEW FINDINGS What is the central question of this study? In fever, the most striking response in the acute phase reaction of systemic inflammation, plasma H2 S concentration increases. However, the role of endogenous peripheral H2 S in fever is unknown. What is the main finding and its importance? Endogenous peripheral H2 S is permissive for increased brown adipose tissue thermogenesis to maintain thermal homeostasis in cold environments as well as to mount fever. This finding expands the physiological role of the gaseous modulator as a key regulator of thermal control in health (thermal homeostasis) and disease (fever in systemic inflammation). ABSTRACT In recent years, hydrogen sulfide (H2 S) has been reported as a gaseous modulator acting in several tissues in health and disease. In animal models of systemic inflammation, the plasma H2 S concentration increases in response to endotoxin (bacterial lipopolysaccharide, LPS). The most striking response in the acute phase reaction of systemic inflammation is fever, but we found no reports of the peripheral action of H2 S on this thermoregulatory response. We aimed at investigating whether endogenous systemic H2 S modulates LPS-induced fever. A temperature datalogger capsule was inserted in the abdominal cavity of male Wistar rats (220-270 g) to record body core temperature. These animals received an i.p. injection of a systemic H2 S inhibitor (propargylglycine; 50 or 75 mg kg-1 ), immediately followed by an i.p. injection of LPS (50 or 2500 μg kg-1 ), and were exposed to different ambient temperatures (16, 22 or 27°C). At 22°C, but not at 27°C, propargylglycine at 75 mg kg-1 significantly attenuated (P < 0.0001) the fever induced by LPS (50 μg kg-1 ), indicating a modulatory (permissive) action of endogenous peripheral H2 S on brown adipose tissue (BAT) thermogenesis. Evidence on the modulatory role of peripheral H2 S in BAT thermogenesis was strengthened when we discarded (i) the possible influence of the gas on febrigenic signalling (when measuring plasma cytokines), and (ii) its interaction with the nitric oxide pathway, and mainly when (iii) we carried out physiological and pharmacological activations of BAT. Endogenous peripheral H2 S modulates (permits) BAT activity not only in fever but also during maintenance of thermal homeostasis in cold environments.
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Affiliation(s)
- Renato N Soriano
- Division of Physiology and Biophysics, Department of Basic Life Sciences, Federal University of Juiz de Fora, Governador Valadares, MG, Brazil.,Nursing School of Ribeirão Preto, Physiology, University of São Paulo, Ribeirão Preto, SP, Brazil
| | - Sara P Braga
- Student of Physical Therapy, Federal University of Juiz de Fora, Governador Valadares, MG, Brazil
| | - Jéssica S C Breder
- Nursing School of Ribeirão Preto, Physiology, University of São Paulo, Ribeirão Preto, SP, Brazil
| | - Marcelo E Batalhao
- Nursing School of Ribeirão Preto, Physiology, University of São Paulo, Ribeirão Preto, SP, Brazil
| | - Gabriela R Oliveira-Pelegrin
- Department of Morphology, Physiology and Basic Pathology, Dental School of Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP, Brazil
| | - Luiz Fernando R Ferreira
- Tiradentes University, Aracaju, SE, Brazil.,Institute of Technology and Research, Aracaju, SE, Brazil
| | - Maria José A Rocha
- Department of Morphology, Physiology and Basic Pathology, Dental School of Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP, Brazil
| | - Evelin C Carnio
- Nursing School of Ribeirão Preto, Physiology, University of São Paulo, Ribeirão Preto, SP, Brazil
| | - Luiz G S Branco
- Department of Morphology, Physiology and Basic Pathology, Dental School of Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP, Brazil
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Castelblanco M, Lugrin J, Ehirchiou D, Nasi S, Ishii I, So A, Martinon F, Busso N. Hydrogen sulfide inhibits NLRP3 inflammasome activation and reduces cytokine production both in vitro and in a mouse model of inflammation. J Biol Chem 2017; 293:2546-2557. [PMID: 29279328 DOI: 10.1074/jbc.m117.806869] [Citation(s) in RCA: 80] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2017] [Revised: 11/17/2017] [Indexed: 12/13/2022] Open
Abstract
A variety of stimuli, including monosodium urate (MSU) crystals, activate the NLRP3 inflammasome, and this activation involves several molecular mechanisms including xanthine oxidase (XO) up-regulation and mitochondrial dysfunction. Upon oligomerization of apoptosis-associated speck-like protein containing a CARD (ASC), caspase-1 becomes active and cleaves the proinflammatory cytokine IL-1β into its active secreted form. Hydrogen sulfide (H2S), a gasotransmitter mainly produced by cystathionine γ-lyase (CSE) in macrophages, could modulate inflammation. Here, we sought to investigate the effects of exogenous and endogenous H2S on NLRP3 inflammasome activation in vitro and in vivo Primed bone marrow-derived macrophages (BMDM) isolated from wildtype (wt) or CSE-deficient mice and human macrophages (THP1 cells and primary macrophages), were stimulated with MSU crystals in the presence or absence of a H2S donor, sodium thiosulfate (STS) or GYY4137 (GYY). In murine and human macrophages in vitro, both STS and GYY inhibited MSU crystal-induced IL-1β secretion in a dose-dependent manner. Moreover, the H2S donors inhibited MSU crystal-induced XO/caspase-1 activities, mitochondrial reactive oxygen species (ROS) generation, and ASC oligomerization. Accordingly, IL-1β secretion and XO/caspase-1 activities were higher in CSE-deficient BMDMs than in wt BMDMs. For in vivo studies, we experimentally induced peritonitis by intraperitoneal injection of MSU crystals into mice. GYY pretreatment ameliorated inflammation, evidenced by decreased IL-6/monocyte chemoattractant protein-1 (MCP-1) released into peritoneal lavages. Taken together, our results suggest that both exogenous (via H2S donors) and endogenous (via CSE) H2S production may represent approaches for managing, for example, acute gout or other inflammation conditions.
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Affiliation(s)
| | - Jérôme Lugrin
- the Department of Biochemistry, University of Lausanne, Epalinges 155 1066, Switzerland and
| | - Driss Ehirchiou
- the Department of Biochemistry, University of Lausanne, Epalinges 155 1066, Switzerland and
| | - Sonia Nasi
- From the Service of Rheumatology, DAL, Lausanne University Hospital (CHUV) and
| | - Isao Ishii
- Showa Pharmaceutical University, Tokyo 194-8543, Japan
| | - Alexander So
- From the Service of Rheumatology, DAL, Lausanne University Hospital (CHUV) and
| | - Fabio Martinon
- the Department of Biochemistry, University of Lausanne, Epalinges 155 1066, Switzerland and
| | - Nathalie Busso
- From the Service of Rheumatology, DAL, Lausanne University Hospital (CHUV) and
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Time-Dependent Production of Endothelium-Related Biomarkers is Affected Differently in Hemorrhagic and Septic Shocks. Inflammation 2017; 41:33-41. [PMID: 29019070 DOI: 10.1007/s10753-017-0660-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Shock is associated with inflammation-induced endothelial dysfunction. The aim of this study was to determine time-dependent alteration of blood biomarkers related to endothelial function in hemorrhagic and septic shocks. Hemorrhagic shock was induced by bleeding the animals. A cecal ligation and incision model was used to induce septicemia. Resuscitation was carried out by infusion of lactated Ringer's solution. Resuscitation extended survival time in both shock groups. Blood pressure increased by resuscitation in the hemorrhagic shock but not in the septic shock. While hemorrhage caused a decrease in plasma levels of nitric oxide (NO) and hydrogen sulfide (H2S), asymmetric dimethylarginine (ADMA) and total antioxidant capacity (TAC) levels were increased. Only NO and TAC levels at the late phase were reversed by resuscitation. On the other hand, plasma levels of NO, ADMA, and TAC were increased by septicemia and resuscitation did not alter the septicemia-induced increase. These results indicate that blood biomarkers related to endothelial function were differentially affected by hemorrhage and septicemia. The time scale of biomarker production should be taken into consideration for the diagnostic and therapeutic approaches to these life-threatening diseases.
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Lin Y, Zeng H, Gao L, Gu T, Wang C, Zhang H. Hydrogen Sulfide Attenuates Atherosclerosis in a Partially Ligated Carotid Artery Mouse model via Regulating Angiotensin Converting Enzyme 2 Expression. Front Physiol 2017; 8:782. [PMID: 29066981 PMCID: PMC5641337 DOI: 10.3389/fphys.2017.00782] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2017] [Accepted: 09/25/2017] [Indexed: 12/18/2022] Open
Abstract
Hydrogen sulfide has been suggested to play an essential role in atherogenesis. There is a paucity of information about the association between H2S and angiotensin converting enzyme 2 (ACE2), a novel homolog of ACE. Therefore, the aim of the study was to explore the role of H2S in atherosclerosis with respect to ACE2 both in vitro and in vivo. Here, a murine model of acutely disturbed flow-induced atherosclerosis by left common carotid artery (LCA) partial ligation was utilized. We found that carotid partial ligation in high-fat fed apoE−/− mice significantly inhibited endogenous H2S synthesis in LCA. Application of NaHS, an H2S donor considerably attenuated the severity of atherosclerosis with upregulating carotid expression of ACE2, thus converting pro-atherosclerotic angiotensin II (Ang II) to anti-atherosclerotic angiotensin 1-7 (Ang-(1-7)). The anti-atherosclerotic effect of NaHS was dramatically abolished by treatment with MLN-4760, an ACE2 inhibitor. In contrast, blockage of H2S formation by DL-propargylglycine exacerbated the burden of atherosclerotic plaques accompanied by inhibiting carotid expression of ACE2. At the cellular level, NaHS dose-dependently promoted the expression of ACE2 and conversion from Ang II to Ang-(1-7) in unstimulated or LPS-stimulated endothelial cells, thus exerting anti-inflammatory properties. The anti-inflammatory effect of NaHS was abrogated by pretreatment with DX600, a selective ACE2 inhibitor. In conclusion, these data provide direct evidences that endogenous H2S insufficiency exists in acute flow disturbance-induced atherosclerosis and that application of H2S may protect against atherosclerosis via upregulating ACE2 expression in endothelial cells.
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Affiliation(s)
- Yanjun Lin
- Department of Cardiology, Shanghai Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, China
| | - Huasu Zeng
- Department of Cardiology, Shanghai Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, China
| | - Lin Gao
- Department of Cardiology, Shanghai Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, China
| | - Ting Gu
- Department of Oral and Maxillofacial Pathology, Shanghai Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, China
| | - Changqian Wang
- Department of Cardiology, Shanghai Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, China
| | - Huili Zhang
- Department of Cardiology, Shanghai Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, China
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Gaddam RR, Chambers S, Murdoch D, Shaw G, Bhatia M. Circulating levels of hydrogen sulfide and substance P in patients with sepsis. J Infect 2017; 75:293-300. [DOI: 10.1016/j.jinf.2017.07.005] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2017] [Revised: 07/20/2017] [Accepted: 07/22/2017] [Indexed: 12/18/2022]
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Szabo C, Papapetropoulos A. International Union of Basic and Clinical Pharmacology. CII: Pharmacological Modulation of H 2S Levels: H 2S Donors and H 2S Biosynthesis Inhibitors. Pharmacol Rev 2017; 69:497-564. [PMID: 28978633 PMCID: PMC5629631 DOI: 10.1124/pr.117.014050] [Citation(s) in RCA: 278] [Impact Index Per Article: 39.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Over the last decade, hydrogen sulfide (H2S) has emerged as an important endogenous gasotransmitter in mammalian cells and tissues. Similar to the previously characterized gasotransmitters nitric oxide and carbon monoxide, H2S is produced by various enzymatic reactions and regulates a host of physiologic and pathophysiological processes in various cells and tissues. H2S levels are decreased in a number of conditions (e.g., diabetes mellitus, ischemia, and aging) and are increased in other states (e.g., inflammation, critical illness, and cancer). Over the last decades, multiple approaches have been identified for the therapeutic exploitation of H2S, either based on H2S donation or inhibition of H2S biosynthesis. H2S donation can be achieved through the inhalation of H2S gas and/or the parenteral or enteral administration of so-called fast-releasing H2S donors (salts of H2S such as NaHS and Na2S) or slow-releasing H2S donors (GYY4137 being the prototypical compound used in hundreds of studies in vitro and in vivo). Recent work also identifies various donors with regulated H2S release profiles, including oxidant-triggered donors, pH-dependent donors, esterase-activated donors, and organelle-targeted (e.g., mitochondrial) compounds. There are also approaches where existing, clinically approved drugs of various classes (e.g., nonsteroidal anti-inflammatories) are coupled with H2S-donating groups (the most advanced compound in clinical trials is ATB-346, an H2S-donating derivative of the non-steroidal anti-inflammatory compound naproxen). For pharmacological inhibition of H2S synthesis, there are now several small molecule compounds targeting each of the three H2S-producing enzymes cystathionine-β-synthase (CBS), cystathionine-γ-lyase, and 3-mercaptopyruvate sulfurtransferase. Although many of these compounds have their limitations (potency, selectivity), these molecules, especially in combination with genetic approaches, can be instrumental for the delineation of the biologic processes involving endogenous H2S production. Moreover, some of these compounds (e.g., cell-permeable prodrugs of the CBS inhibitor aminooxyacetate, or benserazide, a potentially repurposable CBS inhibitor) may serve as starting points for future clinical translation. The present article overviews the currently known H2S donors and H2S biosynthesis inhibitors, delineates their mode of action, and offers examples for their biologic effects and potential therapeutic utility.
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Affiliation(s)
- Csaba Szabo
- Department of Anesthesiology, The University of Texas Medical Branch, Galveston, Texas (C.S.); Laboratory of Pharmacology, Faculty of Pharmacy, National and Kapodistrian University of Athens, Zografou, Greece (A.P.); and Clinical, Experimental Surgery and Translational Research Center, Biomedical Research Foundation of the Academy of Athens, Athens, Greece (A.P.)
| | - Andreas Papapetropoulos
- Department of Anesthesiology, The University of Texas Medical Branch, Galveston, Texas (C.S.); Laboratory of Pharmacology, Faculty of Pharmacy, National and Kapodistrian University of Athens, Zografou, Greece (A.P.); and Clinical, Experimental Surgery and Translational Research Center, Biomedical Research Foundation of the Academy of Athens, Athens, Greece (A.P.)
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Sağlam K, Alhan E, Türkyılmaz S, Vanizor BK, Erçin C. The anti-inflammatory effect of hydrogen sulphide on acute necrotizing pancreatitis in rats. Turk J Surg 2017; 33:158-163. [PMID: 28944326 DOI: 10.5152/ucd.2017.3653] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2016] [Accepted: 09/04/2016] [Indexed: 01/23/2023]
Abstract
OBJECTIVE The aim of this study was to investigate the dose-dependent anti-inflammatory effect of the Hydrogen sulfidedonor sodiumhydrosulphide on acute necrotizing pancreatitis in rats. MATERIAL AND METHODS A total of 42 male Sprague-Dawley rats were divided into 4 groups: sham+saline (group 1), sham+NaHS (group 2), acute necrotizing pancreatitis+saline (group 3), and acute necrotizing pancreatitis+NaHS (group 4). Acute pancreatitis was induced in rats in groups 3 and 4 with the infusion of glycodeoxycholic acidinto the biliopancreatic canal and infusion of cerulein parenterally. In group 4, 10 mg/kg NaHS was administered intraperitoneally after cerulein infusion. Tests for liver and kidney function, interleukin-6, lactate dehydrogenase in bronchoalveolar lavage, and malonyaldehyde and myeloperoxidase activities in pancreas and lung tissue were performed, and histopathologic examination of pancreas was conducted. RESULTS In groups 3, a significant increase in amylase, alanine aminotransferase, urea, interleukine-6, lungmalondialdehyde and myeloperoxidase activities, pancreas myeloperoxidase activity, edema, and necrosis in pancreas tissue and a significant decrease in serum calcium levels were detected (p<0.05). In group 4, addition of NaHS resulted in a significant decrease in lactate dehydrogenase level in bronchoalveolar lavage, amount of urea, lung myeloperoxidase activity, and pancreatic edema (p<0.05). CONCLUSION Although not in pancreatic necrosis, hydrogen sulphide has an anti-inflammatory effect especially in the inflammatory process in lung and edema in pancreasin acute necrotizing pancreatitis at particular doses. With further studies evaluating the anti-inflammatory effects of hydrogen sulphide, we believe it can be used in the treatment of edematous acute pancreatitis and the related complications in lungs.
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Affiliation(s)
- Kutay Sağlam
- Department of General Surgery, Karadeniz Technical University School of Medicine, Trabzon, Turkey
| | - Etem Alhan
- Department of General Surgery, Karadeniz Technical University School of Medicine, Trabzon, Turkey
| | - Serdar Türkyılmaz
- Department of General Surgery, Karadeniz Technical University School of Medicine, Trabzon, Turkey
| | - Birgül Kural Vanizor
- Department of Medical Biochemistry, Karadeniz Technical University School of Medicine, Trabzon, Turkey
| | - Cengiz Erçin
- Department of Pathology, Kocaeli University School of Medicine, Kocaeli, Turkey
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Differential Effects of Kupffer Cell Inactivation on Inflammation and The Liver Sieve Following Caecal-Ligation and Puncture-Induced Sepsis in Mice. Shock 2017; 47:480-490. [PMID: 27648694 DOI: 10.1097/shk.0000000000000755] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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Zheng Y, Yu B, De La Cruz LK, Roy Choudhury M, Anifowose A, Wang B. Toward Hydrogen Sulfide Based Therapeutics: Critical Drug Delivery and Developability Issues. Med Res Rev 2017; 38:57-100. [PMID: 28240384 DOI: 10.1002/med.21433] [Citation(s) in RCA: 115] [Impact Index Per Article: 16.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2016] [Revised: 11/10/2016] [Accepted: 11/29/2016] [Indexed: 12/16/2022]
Abstract
Hydrogen sulfide (H2 S), together with nitric oxide (NO) and carbon monoxide (CO), belongs to the gasotransmitter family and plays important roles in mammals as a signaling molecule. Many studies have also shown the various therapeutic effects of H2 S, which include protection against myocardial ischemia injury, cytoprotection against oxidative stress, mediation of neurotransmission, inhibition of insulin signaling, regulation of inflammation, inhibition of the hypoxia-inducible pathway, and dilation of blood vessels. One major challenge in the development of H2 S-based therapeutics is its delivery. In this manuscript, we assess the various drug delivery strategies in the context of being used research tools and eventual developability as therapeutic agents.
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Affiliation(s)
- Yueqin Zheng
- Department of Chemistry, Georgia State University, Atlanta, Georgia
| | - Bingchen Yu
- Department of Chemistry, Georgia State University, Atlanta, Georgia
| | | | | | | | - Binghe Wang
- Department of Chemistry, Georgia State University, Atlanta, Georgia
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Cystathionine-γ-lyase gene silencing with siRNA in monocytes/ macrophages attenuates inflammation in cecal ligation and puncture-induced sepsis in the mouse. J Biosci 2016; 41:87-95. [PMID: 26949091 DOI: 10.1007/s12038-016-9598-9] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
Hydrogen sulphide is an endogenous inflammatory mediator produced by cystathionine-γ-lyase (CSE) in macrophages. To determine the role of H2S and macrophages in sepsis, we used small interference RNA (siRNA) to target the CSE gene and investigated its effect in a mouse model of sepsis. Cecal ligation puncture (CLP)-induced sepsis is characterized by increased levels of myeloperoxidase (MPO) activity, morphological changes in liver and pro-inflammatory cytokines and chemokines in the liver and lung. SiRNA treatment attenuated inflammation in the liver and lungs of mice following CLP-induced sepsis. Liver MPO activity increased in CLP-induced sepsis and treatment with siRNA significantly reduced this. Similarly, lung MPO activity increased following induction of sepsis with CLP while siRNA treatment significantly reduced MPO activity. Liver and lung cytokine and chemokine levels in CLP-induced sepsis reduced following treatment with siRNA. These findings show a crucial pro-inflammatory role for H2S synthesized by CSE in macrophages in sepsis and suggest CSE gene silencing with siRNA as a potential therapeutic approach for this condition.
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Chun-Mei J, Wu C, Guo-Liang M, Yue G, Ning C, Ji Y. Production of endogenous hydrogen sulfide in human gingival tissue. Arch Oral Biol 2016; 74:108-113. [PMID: 27930932 DOI: 10.1016/j.archoralbio.2016.11.016] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2016] [Revised: 10/28/2016] [Accepted: 11/27/2016] [Indexed: 01/08/2023]
Abstract
OBJECTIVE Endogenous hydrogen sulfide (H2S) has recently been shown to play an important role in inflammation, but the role of endogenous H2S in the human gingival tissue is unknown. The aim of this study was to investigate whether gingiva had enzymes for H2S synthesis, and whether the effect of these enzymes for H2S production changed with periodontal inflammation. DESIGN Gingival tissues were collected from patients undergoing periodontal operation including gingivitis, moderate chronic periodontitis, severe chronic periodontitis and normal controls. RT-PCR and western blotting were performed to measure mRNA and protein levels of cystathionine β-synthase (CBS) and cystathionine γ-lyase (CSE) for H2S production. Immunohistochemistry was carried out to detect the location of the enzymes. H2S levels and synthesis in gingival tissue were evaluated with modified methylene blue method. RESULTS The mRNA and protein of CBS and CSE were both expressed in human gingiva and raised significantly in moderate and severe periodontitis compared of that in healthy control. CBS, but not CSE, increased in gingivitis (p<0.05). However, there was no significant difference of H2S level and synthesis among these groups (p>0.05). CONCLUSIONS Both CBS and CSE were expressed in human gingival tissue. The mRNA and protein levels of CBS and CSE were up-regulated in periodontitis.
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Affiliation(s)
- Jiang Chun-Mei
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Affiliated Hospital of Stomatology, Nanjing Medical University, Nanjing, China
| | - Chen Wu
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Affiliated Hospital of Stomatology, Nanjing Medical University, Nanjing, China
| | - Meng Guo-Liang
- Atherosclerosis Research Center, School of Pharmacy, Department of Pathophysiology, Nanjing Medical University, Nanjing, China
| | - Gu Yue
- Atherosclerosis Research Center, School of Pharmacy, Department of Pathophysiology, Nanjing Medical University, Nanjing, China
| | - Chen Ning
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Affiliated Hospital of Stomatology, Nanjing Medical University, Nanjing, China.
| | - Yong Ji
- Atherosclerosis Research Center, School of Pharmacy, Department of Pathophysiology, Nanjing Medical University, Nanjing, China.
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Corvino A, Severino B, Fiorino F, Frecentese F, Magli E, Perissutti E, Santagada V, Bucci M, Cirino G, Kelly G, Servillo L, Popowicz G, Pastore A, Caliendo G. Fragment-based de novo design of a cystathionine γ-lyase selective inhibitor blocking hydrogen sulfide production. Sci Rep 2016; 6:34398. [PMID: 27708394 PMCID: PMC5052628 DOI: 10.1038/srep34398] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2016] [Accepted: 09/02/2016] [Indexed: 11/26/2022] Open
Abstract
Hydrogen sulfide is an essential catabolite that intervenes in the pathophysiology of several diseases from hypertension to stroke, diabetes and pancreatitis. It is endogenously synthesized mainly by two pyridoxal-5′-phosphate-dependent enzymes involved in L-cysteine metabolism: cystathionine-ß-synthase (CBS) and cystathionine-γ-lyase (CSE). Research in this field is currently impaired by the lack of pharmacological tools such as selective enzymatic inhibitors that could target specifically only one of these pathways. We used a novel approach based on a hybrid method that includes drug design, synthetic biology, metabolomics and pharmacological assays to rationally design a new inhibitor selective for the CSE enzyme. The identification of this compound opens new frontiers towards a better understanding of the role of CSE over CBS in the pathophysiology of diseases where a role for the H2S pathway has been proposed and the development of new lead compounds that could target the CSE enzyme.
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Affiliation(s)
- Angela Corvino
- Department of Pharmacy, University of Naples "Federico II" - Via D. Montesano, 49, 80131-Napoli, Italy.,Department of Neuroscience, Wohl Institute, King's College London, Denmark Hill Campus, London SE5, UK
| | - Beatrice Severino
- Department of Pharmacy, University of Naples "Federico II" - Via D. Montesano, 49, 80131-Napoli, Italy
| | - Ferdinando Fiorino
- Department of Pharmacy, University of Naples "Federico II" - Via D. Montesano, 49, 80131-Napoli, Italy
| | - Francesco Frecentese
- Department of Pharmacy, University of Naples "Federico II" - Via D. Montesano, 49, 80131-Napoli, Italy
| | - Elisa Magli
- Department of Pharmacy, University of Naples "Federico II" - Via D. Montesano, 49, 80131-Napoli, Italy
| | - Elisa Perissutti
- Department of Pharmacy, University of Naples "Federico II" - Via D. Montesano, 49, 80131-Napoli, Italy
| | - Vincenzo Santagada
- Department of Pharmacy, University of Naples "Federico II" - Via D. Montesano, 49, 80131-Napoli, Italy
| | - Mariarosaria Bucci
- Department of Pharmacy, University of Naples "Federico II" - Via D. Montesano, 49, 80131-Napoli, Italy
| | - Giuseppe Cirino
- Department of Pharmacy, University of Naples "Federico II" - Via D. Montesano, 49, 80131-Napoli, Italy
| | - Geoff Kelly
- MRC Biomedical NMR Centre, NIMR, NW7 1AA, London
| | - Luigi Servillo
- Department of Biochemistry, Biophysics and General Pathology, Second University of Naples, Italy
| | | | - Annalisa Pastore
- Department of Neuroscience, Wohl Institute, King's College London, Denmark Hill Campus, London SE5, UK
| | - Giuseppe Caliendo
- Department of Pharmacy, University of Naples "Federico II" - Via D. Montesano, 49, 80131-Napoli, Italy
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Gaddam RR, Fraser R, Badiei A, Chambers S, Cogger VC, Le Couteur DG, Ishii I, Bhatia M. Cystathionine-Gamma-Lyase Gene Deletion Protects Mice against Inflammation and Liver Sieve Injury following Polymicrobial Sepsis. PLoS One 2016; 11:e0160521. [PMID: 27518439 PMCID: PMC4982653 DOI: 10.1371/journal.pone.0160521] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2016] [Accepted: 07/19/2016] [Indexed: 01/13/2023] Open
Abstract
Background Hydrogen sulfide (H2S), produced by the activity of cystathionine-gamma-lyase (CSE), is a key mediator of inflammation in sepsis. The liver sinusoidal endothelial cells (LSECs) are important target and mediator of sepsis. The aim of this study was to investigate the role of CSE-derived H2S on inflammation and LSECs fenestrae in caecal-ligation and puncture (CLP)-induced sepsis using CSE KO mice. Methods Sepsis was induced by CLP, and mice (C57BL/6J, male) were sacrificed after 8 hours. Liver, lung, and blood were collected and processed to measure CSE expression, H2S synthesis, MPO activity, NF-κB p65, ERK1/2, and cytokines/chemokines levels. Diameter, frequency, porosity and gap area of the liver sieve were calculated from scanning electron micrographs of the LSECs. Results An increased CSE expression and H2S synthesizing activity in the liver and lung of wild-type mice following CLP-induced sepsis. This was associated with an increased liver and lung MPO activity, and increased liver and lung and plasma levels of the pro-inflammatory cytokines TNF-α, IL-6, and IL-1β, and the chemokines MCP-1 and MIP-2α. Conversely, CSE KO mice had less liver and lung injury and reduced inflammation following CLP-induced sepsis as evidenced by decreased levels of H2S synthesizing activity, MPO activity, and pro-inflammatory cytokines/chemokines production. Extracellular-regulated kinase (ERK1/2) and nuclear factor-κB p65 (NF-κB) became significantly activated after the CLP in WT mice but not in CSE KO mice. In addition, CLP-induced damage to the LSECs, as indicated by increased defenestration and gaps formation in the LSECs compared to WT sham control. CSE KO mice showed decreased defenestration and gaps formation following sepsis. Conclusions Mice with CSE (an H2S synthesising enzyme) gene deletion are less susceptible to CLP-induced sepsis and associated inflammatory response through ERK1/2-NF-κB p65 pathway as evidenced by reduced inflammation, tissue damage, and LSECs defenestration and gaps formation.
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Affiliation(s)
| | - Robin Fraser
- Department of Pathology, University of Otago, Christchurch, New Zealand
| | - Alireza Badiei
- Department of Pathology, University of Otago, Christchurch, New Zealand
| | - Stephen Chambers
- Department of Pathology, University of Otago, Christchurch, New Zealand
| | - Victoria C Cogger
- Centre for Education and Research on Ageing, Alzheimers and Ageing Institute, Biogerentology, ANZAC Research Institute, University of Sydney, Sydney and Concord Hospital, Sydney, Australia
| | - David G Le Couteur
- Centre for Education and Research on Ageing, Alzheimers and Ageing Institute, Biogerentology, ANZAC Research Institute, University of Sydney, Sydney and Concord Hospital, Sydney, Australia
| | - Isao Ishii
- Department of Biochemistry, Graduate School of Pharmaceutical Sciences, Keio University, Tokyo, Japan
| | - Madhav Bhatia
- Department of Pathology, University of Otago, Christchurch, New Zealand
- * E-mail:
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George L, Ramasamy T, Manickam V, Iyer SK, Radhakrishnan V. Novel phenanthridine (PHE-4i) derivative inhibits carrageenan-induced rat hind paw oedema through suppression of hydrogen sulfide. Inflammopharmacology 2016; 24:173-80. [DOI: 10.1007/s10787-016-0273-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2016] [Accepted: 06/24/2016] [Indexed: 12/11/2022]
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Brancaleone V, Esposito I, Gargiulo A, Vellecco V, Asimakopoulou A, Citi V, Calderone V, Gobbetti T, Perretti M, Papapetropoulos A, Bucci M, Cirino G. D-Penicillamine modulates hydrogen sulfide (H2S) pathway through selective inhibition of cystathionine-γ-lyase. Br J Pharmacol 2016; 173:1556-65. [PMID: 26890936 DOI: 10.1111/bph.13459] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2015] [Revised: 01/21/2016] [Accepted: 01/31/2016] [Indexed: 12/27/2022] Open
Abstract
BACKGROUND AND PURPOSE Hydrogen sulfide (H2S) is a gasotransmitter produced from L-cysteine through the enzymatic action of cystathionine-γ-lyase (CSE) and/or cystathionine-β-synthase. D-Penicillamine is the d isomer of a dimethylated cysteine and has been used for the treatment of rheumatoid arthritis. AsD-penicillamine is structurally very similar to cysteine, we have investigated whether D-penicillamine, as a cysteine analogue, has an effect on the H2 S pathway. EXPERIMENTAL APPROACH We tested the effect of D-penicillamine (0.01-1 mM) in mouse aortic rings mounted in isolated organ baths and determined whether it could affect H2 S biosynthesis. In particular, we investigated any possible inhibitor or donor behaviour by using recombinant enzyme-based assays and an in vivo approach. KEY RESULTS D-Penicillamine, per se, showed little or no vasodilator effect, and it cannot be metabolized as a substrate in place of l-cysteine. However, d-penicillamine significantly reduced L-cysteine-induced vasodilatation in a concentration-dependent manner through inhibition of H2 S biosynthesis, and this effect occurred at concentrations 10 times lower than those needed to induce the release of H2 S. In particular, D-penicillamine selectively inhibited CSE in a pyridoxal-5'-phosphate-dependent manner. CONCLUSIONS AND IMPLICATIONS Taken together, our results suggest that D-penicillamine acts as a selective CSE inhibitor, leading to new perspectives in the design and use of specific pharmacological tools for H2 S research. In addition, the inhibitory effect of D-penicillamine on CSE could account for its beneficial action in rheumatoid arthritis patients, where H2 S has been shown to have a detrimental effect.
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Affiliation(s)
| | - Iolanda Esposito
- Department of Pharmacy, University of Naples Federico II, Naples, Italy
| | | | | | | | | | | | - Thomas Gobbetti
- William Harvey Research Institute, Queen Mary University of London, London, UK
| | - Mauro Perretti
- William Harvey Research Institute, Queen Mary University of London, London, UK
| | | | | | - Giuseppe Cirino
- Department of Pharmacy, University of Naples Federico II, Naples, Italy
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Tu F, Li J, Wang J, Li Q, Chu W. Hydrogen sulfide protects against cognitive impairment induced by hepatic ischemia and reperfusion via attenuating neuroinflammation. Exp Biol Med (Maywood) 2016; 241:636-43. [PMID: 26811101 DOI: 10.1177/1535370215627033] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2015] [Accepted: 12/01/2015] [Indexed: 01/31/2023] Open
Abstract
Previously, hepatic ischemia followed by reperfusion (hepatic I/R) has been found to cause cognitive impairment. Hydrogen sulfide (H2S) attenuates hepatectomy induced cognitive deficits and also protects against cognitive dysfunction induced by neurodegenerative diseases. In this study, we aim to determine whether sodium hydrosulfide (NaHS), a H2S donor, could alleviate hepatic I/R-induced cognitive impairment and the underlying mechanisms. Rats were injected intraperitoneally with NaHS (5 mg/kg/d) for 11 days. A segmental hepatic I/R model was established on the fourth day. Cognitive function, proinflammatory cytokines levels, and hippocampal ionized calcium-binding adaptor molecule 1 (Iba1) expression was analyzed. We found hepatic I/R increased proinflammatory cytokines levels in serum and hippocampus, up-regulated Iba1 expression, leading to cognitive impairment in rats. However, treatment with NaHS alleviated hepatic I/R induced these neuroinflammatory changes and effectively improved cognitive function. Thus, NaHS appears to protect against cognitive impairment in rats undergoing hepatic I/R by attenuating neuroinflammation in the hippocampus.
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Affiliation(s)
- Faping Tu
- Department of Anesthesiology, Affiliated Hospital of North Sichuan Medical College, Nanchong 637000, China
| | - Jingdong Li
- Hepatobiliary Research Institute of North Sichuan Medical College, Nanchong 637000, China
| | - Ji Wang
- Department of Anesthesiology, Affiliated Hospital of North Sichuan Medical College, Nanchong 637000, China
| | - Qiang Li
- Hepatobiliary Research Institute of North Sichuan Medical College, Nanchong 637000, China
| | - Weihua Chu
- School of Life Science and Technology, China Pharmaceutical University, Nanjing 210009, China
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Sarna LK, Siow YL, O K. The CBS/CSE system: a potential therapeutic target in NAFLD? Can J Physiol Pharmacol 2016; 93:1-11. [PMID: 25493326 DOI: 10.1139/cjpp-2014-0394] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Non-alcoholic fatty liver disease (NAFLD) is a broad spectrum liver disorder diagnosed in patients without a history of alcohol abuse. NAFLD is growing at alarming rates worldwide. Its pathogenesis is complex and incompletely understood. The cystathionine-β-synthase (CBS) and cystathionine-γ-lyase (CSE) system regulates homocysteine and cysteine metabolism and contributes to endogenous hydrogen sulfide (H2S) biosynthesis. This review summarizes our current understanding of the hepatic CBS/CSE system, and for the first time, positions this system as a potential therapeutic target in NAFLD. As will be discussed, the CBS/CSE system is highly expressed and active in the liver. Its dysregulation, presenting as alterations in circulating homocysteine and (or) H2S levels, has been reported in NAFLD patients and in NAFLD-associated co-morbidities such as obesity and type 2 diabetes. Intricate links between the CBS/CSE system and a number of metabolic and stress related molecular mediators have also emerged. Various dysfunctions in the hepatic CBS/CSE system have been reported in animal models representative of each NAFLD spectrum. It is anticipated that a newfound appreciation for the hepatic CBS/CSE system will emerge that will improve our understanding of NAFLD pathogenesis, and give rise to new prospective targets for management of this disorder.
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Affiliation(s)
- Lindsei K Sarna
- a Laboratory of Integrative Biology, St. Boniface Hospital Research Centre, 351 Tache Avenue, Winnipeg, MB R2H 2A6, Canada
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50
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Akter F. The role of hydrogen sulfide in burns. Burns 2016; 42:519-25. [PMID: 26790358 DOI: 10.1016/j.burns.2015.07.005] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2014] [Revised: 06/26/2015] [Accepted: 07/13/2015] [Indexed: 02/08/2023]
Abstract
Hydrogen sulfide is a novel gasotransmitter that has been shown to play a major role in regulating vascular tone. However, the role of hydrogen sulfide in inflammation, sepsis and burns has only recently been studied. In animal studies, hydrogen sulfide has been shown to play a role in both promoting and inhibiting inflammation. Understanding the role of H2S in sepsis and shock is particularly important due to the high mortality associated with both conditions. In animal sepsis models, hydrogen sulfide appears to increase survival. Severe burns are associated with an inflammatory response that causes increased permeability and edema. Currently, there are few studies that have examined the exact role of hydrogen sulfide in burns. However, the role of hydrogen sulfide in inflammation enables us to hypothesize its role in burns. This review highlights the role of hydrogen sulfide in the mechanisms of action underlying inflammation, wound healing and sepsis as well as examining the potential role of hydrogen sulfide in burns. The authors of this article hope that this review will stimulate research to discover the exact role of this fascinating molecule in burns.
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