951
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Nikolic I, Vujicic M, Stojanovic I, Stosic-Grujicic S, Saksida T. Carbon Monoxide-Releasing Molecule-A1 Inhibits Th1/Th17 and Stimulates Th2 DifferentiationIn vitro. Scand J Immunol 2014; 80:95-100. [DOI: 10.1111/sji.12189] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2014] [Accepted: 04/21/2014] [Indexed: 12/29/2022]
Affiliation(s)
- I. Nikolic
- Institute for Biological Research ‘Sinisa Stankovic’; University of Belgrade; Belgrade Serbia
| | - M. Vujicic
- Institute for Biological Research ‘Sinisa Stankovic’; University of Belgrade; Belgrade Serbia
| | - I. Stojanovic
- Institute for Biological Research ‘Sinisa Stankovic’; University of Belgrade; Belgrade Serbia
| | - S. Stosic-Grujicic
- Institute for Biological Research ‘Sinisa Stankovic’; University of Belgrade; Belgrade Serbia
| | - T. Saksida
- Institute for Biological Research ‘Sinisa Stankovic’; University of Belgrade; Belgrade Serbia
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952
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Babu D, Motterlini R, Lefebvre RA. CO and CO-releasing molecules (CO-RMs) in acute gastrointestinal inflammation. Br J Pharmacol 2014; 172:1557-73. [PMID: 24641722 DOI: 10.1111/bph.12632] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2013] [Revised: 01/30/2014] [Accepted: 02/05/2014] [Indexed: 12/13/2022] Open
Abstract
Carbon monoxide (CO) is enzymatically generated in mammalian cells alongside the liberation of iron and the production of biliverdin and bilirubin. This occurs during the degradation of haem by haem oxygenase (HO) enzymes, a class of ubiquitous proteins consisting of constitutive and inducible isoforms. The constitutive HO2 is present in the gastrointestinal tract in neurons and interstitial cells of Cajal and CO released from these cells might contribute to intestinal inhibitory neurotransmission and/or to the control of intestinal smooth muscle cell membrane potential. On the other hand, increased expression of the inducible HO1 is now recognized as a beneficial response to oxidative stress and inflammation. Among the products of haem metabolism, CO appears to contribute primarily to the antioxidant and anti-inflammatory effects of the HO1 pathway explaining the studies conducted to exploit CO as a possible therapeutic agent. This article reviews the effects and, as far as known today, the mechanism(s) of action of CO administered either as CO gas or via CO-releasing molecules in acute gastrointestinal inflammation. We provide here a comprehensive overview on the effect of CO in experimental in vivo models of post-operative ileus, intestinal injury during sepsis and necrotizing enterocolitis. In addition, we will analyse the in vitro data obtained so far on the effect of CO on intestinal epithelial cell lines exposed to cytokines, considering the important role of the intestinal mucosa in the pathology of gastrointestinal inflammation.
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Affiliation(s)
- D Babu
- Heymans Institute of Pharmacology, Ghent University, Gent, Belgium
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953
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Yetik-Anacak G, Sorrentino R, Linder AE, Murat N. Gas what: NO is not the only answer to sexual function. Br J Pharmacol 2014; 172:1434-54. [PMID: 24661203 DOI: 10.1111/bph.12700] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2013] [Revised: 02/18/2014] [Accepted: 03/17/2014] [Indexed: 01/08/2023] Open
Abstract
The ability to get and keep an erection is important to men for several reasons and the inability is known as erectile dysfunction (ED). ED has started to be accepted as an early indicator of systemic endothelial dysfunction and subsequently of cardiovascular diseases. The role of NO in endothelial relaxation and erectile function is well accepted. The discovery of NO as a small signalling gasotransmitter led to the investigation of the role of other endogenously derived gases, carbon monoxide (CO) and hydrogen sulphide (H2 S) in physiological and pathophysiological conditions. The role of NO and CO in sexual function and dysfunction has been investigated more extensively and, recently, the involvement of H2 S in erectile function has also been confirmed. In this review, we focus on the role of these three sister gasotransmitters in the physiology, pharmacology and pathophysiology of sexual function in man, specifically erectile function. We have also reviewed the role of soluble guanylyl cyclase/cGMP pathway as a common target of these gasotransmitters. Several studies have proposed alternative therapies targeting different mechanisms in addition to PDE-5 inhibition for ED treatment, since some patients do not respond to these drugs. This review highlights complementary and possible coordinated roles for these mediators and treatments targeting these gasotransmitters in erectile function/ED.
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Affiliation(s)
- G Yetik-Anacak
- Department of Pharmacology, Faculty of Pharmacy, Ege University, İzmir, Turkey
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954
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Ogaki S, Taguchi K, Watanabe H, Ishima Y, Otagiri M, Maruyama T. Carbon Monoxide-Bound Red Blood Cell Resuscitation Ameliorates Hepatic Injury Induced by Massive Hemorrhage and Red Blood Cell Resuscitation via Hepatic Cytochrome P450 Protection in Hemorrhagic Shock Rats. J Pharm Sci 2014; 103:2199-2206. [DOI: 10.1002/jps.24029] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2014] [Revised: 05/02/2014] [Accepted: 05/09/2014] [Indexed: 12/17/2022]
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955
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Yin H, Fang J, Liao L, Maeda H, Su Q. Upregulation of heme oxygenase-1 in colorectal cancer patients with increased circulation carbon monoxide levels, potentially affects chemotherapeutic sensitivity. BMC Cancer 2014; 14:436. [PMID: 24927633 PMCID: PMC4075569 DOI: 10.1186/1471-2407-14-436] [Citation(s) in RCA: 67] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2014] [Accepted: 06/06/2014] [Indexed: 12/20/2022] Open
Abstract
Background Heme oxygenase-1 (HO-1) and its major product carbon monoxide (CO) are known to be involved in the development and progression of many tumors. The present study was to elucidate the expression and function of HO-1 in colorectal cancer (CRC), specially focusing on the circulation CO levels in CRC patients and the possible roles of HO-1 in chemoresistance of colon cancer cells. Methods One hundred and eighteen patients received resection for colorectal cancer and polyps at China Medical University Sheng Jing Hospital, were collected in this study. HO-1 expression in CRC tissues was analyzed by immnuohistochemical staining; circulation CO levels as carboxyhemoglobin (COHb) in CRC patients were analyzed by an ABL800 FLEX blood gas analyzer. HO-1 expression in murine colon cells C26 and human colon cancer cells HT29 and DLD1 under HO-1 inducer hemin and anticancer drug pirarubicin (THP) treatment was examined by RT-PCR, and the cell viability after each treatment was investigated by MTT assay. Data were analyzed by student’s t-test or one-way ANOVA followed by Bonferroni t-test or Fisher's exact test. Results HO-1 expression in tumor tissues of CRC (61.0%) was significantly higher than in normal colorectal tissues and polyps tissues (29.7%, P < 0.01); well-differentiated CRC seemed to express more HO-1 (81.5%) than moderately/poorly-differentiated cancers (59.5%, P < 0.05). However, the nuclear HO-1 expression is apparently higher in moderately/poorly differentiated CRC than well-differentiated CRC probably suggesting a new mechanism of function involved in HO-1 in cancer. In parallel with HO-1 expression, circulation CO levels in CRC patients also significantly accelerated. Moreover, HO-1 expression/induction also related to the chemosensitivity of colon cells; HO inhibitor zinc protoporphyrin significantly increased cytotoxicities of THP (i.e., 2.6 – 5.3 folds compared to cells without zinc protoporphyrin treatment). Conclusions These findings strongly suggested HO-1/COHb is a useful diagnostic and prognostic indicator for CRC, and inhibition of HO-1 may be a option to enhance the chemotherapeutic effects of conventional anticancer drugs toward CRC.
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Affiliation(s)
| | | | | | | | - Qi Su
- Department of General Surgery, Sheng Jing Hospital, China Medical University, Shenyang City, Liaoning Province 110004, P, R, China.
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956
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Elies J, Dallas ML, Boyle JP, Scragg JL, Duke A, Steele DS, Peers C. Inhibition of the cardiac Na⁺ channel Nav1.5 by carbon monoxide. J Biol Chem 2014; 289:16421-9. [PMID: 24719320 PMCID: PMC4047409 DOI: 10.1074/jbc.m114.569996] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2014] [Indexed: 11/17/2022] Open
Abstract
Sublethal carbon monoxide (CO) exposure is frequently associated with myocardial arrhythmias, and our recent studies have demonstrated that these may be attributable to modulation of cardiac Na(+) channels, causing an increase in the late current and an inhibition of the peak current. Using a recombinant expression system, we demonstrate that CO inhibits peak human Nav1.5 current amplitude without activation of the late Na(+) current observed in native tissue. Inhibition was associated with a hyperpolarizing shift in the steady-state inactivation properties of the channels and was unaffected by modification of channel gating induced by anemone toxin (rATX-II). Systematic pharmacological assessment indicated that no recognized CO-sensitive intracellular signaling pathways appeared to mediate CO inhibition of Nav1.5. Inhibition was, however, markedly suppressed by inhibition of NO formation, but NO donors did not mimic or occlude channel inhibition by CO, indicating that NO alone did not account for the actions of CO. Exposure of cells to DTT immediately before CO exposure also dramatically reduced the magnitude of current inhibition. Similarly, l-cysteine and N-ethylmaleimide significantly attenuated the inhibition caused by CO. In the presence of DTT and the NO inhibitor N(ω)-nitro-L-arginine methyl ester hydrochloride, the ability of CO to inhibit Nav1.5 was almost fully prevented. Our data indicate that inhibition of peak Na(+) current (which can lead to Brugada syndrome-like arrhythmias) occurs via a mechanism distinct from induction of the late current, requires NO formation, and is dependent on channel redox state.
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Affiliation(s)
- Jacobo Elies
- From the Division of Cardiovascular and Diabetes Research, Leeds Institute of Genetics, Health and Therapeutics, Faculty of Medicine and Health and
| | - Mark L Dallas
- From the Division of Cardiovascular and Diabetes Research, Leeds Institute of Genetics, Health and Therapeutics, Faculty of Medicine and Health and
| | - John P Boyle
- From the Division of Cardiovascular and Diabetes Research, Leeds Institute of Genetics, Health and Therapeutics, Faculty of Medicine and Health and
| | - Jason L Scragg
- From the Division of Cardiovascular and Diabetes Research, Leeds Institute of Genetics, Health and Therapeutics, Faculty of Medicine and Health and
| | - Adrian Duke
- Institute of Membrane and Systems Biology, Faculty of Biological Sciences, University of Leeds, Leeds LS2 9JT, United Kingdom
| | - Derek S Steele
- Institute of Membrane and Systems Biology, Faculty of Biological Sciences, University of Leeds, Leeds LS2 9JT, United Kingdom
| | - Chris Peers
- From the Division of Cardiovascular and Diabetes Research, Leeds Institute of Genetics, Health and Therapeutics, Faculty of Medicine and Health and
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957
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Stamellou E, Storz D, Botov S, Ntasis E, Wedel J, Sollazzo S, Krämer BK, van Son W, Seelen M, Schmalz HG, Schmidt A, Hafner M, Yard BA. Different design of enzyme-triggered CO-releasing molecules (ET-CORMs) reveals quantitative differences in biological activities in terms of toxicity and inflammation. Redox Biol 2014; 2:739-48. [PMID: 25009775 PMCID: PMC4085349 DOI: 10.1016/j.redox.2014.06.002] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2014] [Revised: 05/29/2014] [Accepted: 06/02/2014] [Indexed: 11/17/2022] Open
Abstract
Acyloxydiene–Fe(CO)3 complexes can act as enzyme-triggered CO-releasing molecules (ET-CORMs). Their biological activity strongly depends on the mother compound from which they are derived, i.e. cyclohexenone or cyclohexanedione, and on the position of the ester functionality they harbour. The present study addresses if the latter characteristic affects CO release, if cytotoxicity of ET-CORMs is mediated through iron release or inhibition of cell respiration and to what extent cyclohexenone and cyclohexanedione derived ET-CORMs differ in their ability to counteract TNF-α mediated inflammation. Irrespective of the formulation (DMSO or cyclodextrin), toxicity in HUVEC was significantly higher for ET-CORMs bearing the ester functionality at the outer (rac-4), as compared to the inner (rac-1) position of the cyclohexenone moiety. This was paralleled by an increased CO release from the former ET-CORM. Toxicity was not mediated via iron as EC50 values for rac-4 were significantly lower than for FeCl2 or FeCl3 and were not influenced by iron chelation. ATP depletion preceded toxicity suggesting impaired cell respiration as putative cause for cell death. In long-term HUVEC cultures inhibition of VCAM-1 expression by rac-1 waned in time, while for the cyclohexanedione derived rac-8 inhibition seems to increase. NFκB was inhibited by both rac-1 and rac-8 independent of IκBα degradation. Both ET-CORMs activated Nrf-2 and consequently induced the expression of HO-1. This study further provides a rational framework for designing acyloxydiene–Fe(CO)3 complexes as ET-CORMs with differential CO release and biological activities. We also provide a better understanding of how these complexes affect cell-biology in mechanistic terms.
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Affiliation(s)
- E Stamellou
- Institute for Molecular and Cellular Biology, Mannheim University of Applied Sciences, Mannheim, Germany ; Vth. Medical Department, Medical Faculty Mannheim, Ruprecht Karls University, Heidelberg Mannheim, Germany
| | - D Storz
- Vth. Medical Department, Medical Faculty Mannheim, Ruprecht Karls University, Heidelberg Mannheim, Germany
| | - S Botov
- Department of Chemistry, University of Cologne, Cologne, Germany
| | - E Ntasis
- Vth. Medical Department, Medical Faculty Mannheim, Ruprecht Karls University, Heidelberg Mannheim, Germany
| | - J Wedel
- Vth. Medical Department, Medical Faculty Mannheim, Ruprecht Karls University, Heidelberg Mannheim, Germany
| | - S Sollazzo
- Department of Chemistry, University of Cologne, Cologne, Germany
| | - B K Krämer
- Vth. Medical Department, Medical Faculty Mannheim, Ruprecht Karls University, Heidelberg Mannheim, Germany
| | - W van Son
- Department of Nephrology, Academic Medical Center, Groningen, The Netherlands
| | - M Seelen
- Department of Nephrology, Academic Medical Center, Groningen, The Netherlands
| | - H G Schmalz
- Department of Chemistry, University of Cologne, Cologne, Germany
| | - A Schmidt
- Department of Chemistry, University of Cologne, Cologne, Germany
| | - M Hafner
- Institute for Molecular and Cellular Biology, Mannheim University of Applied Sciences, Mannheim, Germany
| | - B A Yard
- Vth. Medical Department, Medical Faculty Mannheim, Ruprecht Karls University, Heidelberg Mannheim, Germany
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958
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Kromer L, Coelho AC, Bento I, Marques AR, Romão CC. The effect of specific modifications of the amine ligands on the solubility, stability, CO release to myoglobin and whole blood, cell toxicity and haemolytic index of [Mo(CO)4(NR3)2] complexes. J Organomet Chem 2014. [DOI: 10.1016/j.jorganchem.2013.12.009] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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959
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Anti-inflammatory effects of carbon monoxide-releasing molecule on trinitrobenzene sulfonic acid-induced colitis in mice. Dig Dis Sci 2014; 59:1142-51. [PMID: 24442266 DOI: 10.1007/s10620-013-3014-1] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/14/2013] [Accepted: 12/20/2013] [Indexed: 01/08/2023]
Abstract
BACKGROUND AND AIM Recent findings indicate that carbon monoxide (CO) in non-toxic doses exerts a beneficial anti-inflammatory action in various experimental models. However, the precise anti-inflammatory mechanism of CO in the intestine remains unclear. Here, we assessed the effects of a novel water-soluble CO-releasing molecule, CORM-3, on trinitrobenzene sulfonic acid (TNBS)-induced colitis in mice. METHODS To induce colitis, C57BL/6 male mice received an enema of TNBS. CORM-3 or its inactive compound, iCORM-3, were administered intraperitoneally, once immediately before, and twice daily after receiving an enema of TNBS. Three days after TNBS administration, the distal colon was removed, assessed for colonic damage and histological scores, polymorphonuclear leukocyte recruitment (tissue-associated myeloperoxidase, MPO activity), and TNF-α, IFN-γ and IL-17A expression (mRNA and protein levels in the colon mucosa). CD4(+) T cells isolated from murine spleens were stimulated with anti-CD3/CD28, in the presence or absence of CORM-3/iCORM-3. The cell supernatants were assessed for TNF-α and IFN-γ expression, 24 h following stimulation. RESULTS Colonic damage and histological scores were significantly increased in TNBS-induced mice compared to sham-operated mice. Tissue-associated MPO activity and expression of TNF-α, IFN-γ, and IL-17A in the colonic mucosa were higher in TNBS-induced colitis mice. The above changes were attenuated in CORM-3-treated mice. Further, CORM-3 was effective in reducing TNF-α and IFN-γ production in anti-CD3/CD28-stimulated CD4(+) T cells. CONCLUSIONS These findings indicate that CO released from CORM-3 ameliorates inflammatory responses in the colon of TNBS-challenged mice at least in part through a mechanism that involves the suppression of inflammatory cell recruitment/activation.
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960
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Heme oxygenase-1 in diabetic vascular dysfunction. Vascul Pharmacol 2014; 62:132-3. [PMID: 24861275 DOI: 10.1016/j.vph.2014.05.006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2014] [Revised: 05/06/2014] [Accepted: 05/11/2014] [Indexed: 11/21/2022]
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961
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Pai S, Radacki K, Schatzschneider U. Sonogashira, CuAAC, and Oxime Ligations for the Synthesis of MnITricarbonyl PhotoCORM Peptide Conjugates. Eur J Inorg Chem 2014. [DOI: 10.1002/ejic.201402123] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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962
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Nagao S, Taguchi K, Sakai H, Tanaka R, Horinouchi H, Watanabe H, Kobayashi K, Otagiri M, Maruyama T. Carbon monoxide-bound hemoglobin-vesicles for the treatment of bleomycin-induced pulmonary fibrosis. Biomaterials 2014; 35:6553-62. [PMID: 24811261 DOI: 10.1016/j.biomaterials.2014.04.049] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2014] [Accepted: 04/13/2014] [Indexed: 11/29/2022]
Abstract
Carbon monoxide (CO) has potent anti-inflammatory and anti-oxidant effects. We report herein on the preparation of a nanotechnology-based CO donor, CO-bound hemoglobin-vesicles (CO-HbV). We hypothesized that CO-HbV could have a therapeutic effect on idiopathic pulmonary fibrosis (IPF), an incurable lung fibrosis, that is thought to involve inflammation and the production of reactive oxygen species (ROS). Pulmonary fibril formation and respiratory function were quantitatively evaluated by measuring hydroxyproline levels and forced vital capacity, respectively, using a bleomycin-induced pulmonary fibrosis mice model. CO-HbV suppressed the progression of pulmonary fibril formation and improved respiratory function compared to saline and HbV. The suppressive effect of CO-HbV on pulmonary fibrosis can be attributed to a decrease in ROS generation by inflammatory cells, NADPH oxidase 4 and the production of inflammatory cells, cytokines and transforming growth factor-β in the lung. This is the first demonstration of the inhibitory effect of CO-HbV on the progression of pulmonary fibrosis via the anti-oxidative and anti-inflammatory effects of CO in the bleomycin-induced pulmonary fibrosis mice model. CO-HbV has the potential for use in the treatment of, not only IPF, but also a variety of other ROS and inflammation-related disorders.
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Affiliation(s)
- Saori Nagao
- Department of Biopharmaceutics, Graduate School of Pharmaceutical Sciences, Kumamoto University, Kumamoto 862-0973, Japan
| | - Kazuaki Taguchi
- Faculty of Pharmaceutical Sciences, Sojo University, Kumamoto 860-0082, Japan
| | - Hiromi Sakai
- Department of Chemistry, Nara Medical University, Kashihara 634-8521, Japan
| | - Ryota Tanaka
- Department of Biopharmaceutics, Graduate School of Pharmaceutical Sciences, Kumamoto University, Kumamoto 862-0973, Japan
| | - Hirohisa Horinouchi
- Department of Surgery, School of Medicine, Keio University, Tokyo 160-8582, Japan
| | - Hiroshi Watanabe
- Department of Biopharmaceutics, Graduate School of Pharmaceutical Sciences, Kumamoto University, Kumamoto 862-0973, Japan; Center for Clinical Pharmaceutical Sciences, School of Pharmacy, Kumamoto University, Kumamoto 862-0973, Japan
| | - Koichi Kobayashi
- Department of Surgery, School of Medicine, Keio University, Tokyo 160-8582, Japan
| | - Masaki Otagiri
- Department of Biopharmaceutics, Graduate School of Pharmaceutical Sciences, Kumamoto University, Kumamoto 862-0973, Japan; Faculty of Pharmaceutical Sciences, Sojo University, Kumamoto 860-0082, Japan; DDS Research Institute, Sojo University, Kumamoto 860-0082, Japan.
| | - Toru Maruyama
- Department of Biopharmaceutics, Graduate School of Pharmaceutical Sciences, Kumamoto University, Kumamoto 862-0973, Japan; Center for Clinical Pharmaceutical Sciences, School of Pharmacy, Kumamoto University, Kumamoto 862-0973, Japan.
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963
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Nikolic I, Saksida T, Mangano K, Vujicic M, Stojanovic I, Nicoletti F, Stosic-Grujicic S. Pharmacological application of carbon monoxide ameliorates islet-directed autoimmunity in mice via anti-inflammatory and anti-apoptotic effects. Diabetologia 2014; 57:980-90. [PMID: 24488023 DOI: 10.1007/s00125-014-3170-7] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/19/2013] [Accepted: 12/18/2013] [Indexed: 10/25/2022]
Abstract
AIMS/HYPOTHESIS Recent studies have identified carbon monoxide (CO) as a potential therapeutic molecule for the treatment of autoimmune diseases owing to its anti-inflammatory and anti-apoptotic properties. We explored the efficacy and the mechanisms of action of the CO-releasing molecule (CORM)-A1 in preclinical models of type 1 diabetes. METHODS The impact of CORM-A1 on diabetes development was evaluated in models of spontaneous diabetes in NOD mice and in diabetes induced in C57BL/6 mice by multiple low-dose streptozotocin (MLDS). Ex vivo analysis was performed to determine the impact of CORM-A1 both on T helper (Th) cell and macrophage differentiation and on their production of soluble mediators in peripheral tissues and in infiltrates of pancreatic islets. The potential effect of CORM-A1 on cytokine-induced apoptosis in pancreatic islets or beta cells was evaluated in vitro. RESULTS CORM-A1 conferred protection from diabetes in MLDS-induced mice and reduced diabetes incidence in NOD mice as confirmed by preserved insulin secretion and improved histological signs of the disease. In MLDS-challenged mice, CORM-A1 attenuated Th1, Th17, and M1 macrophage response and facilitated Th2 cell differentiation. In addition, CORM-A1 treatment in NOD mice upregulated the regulatory arm of the immune response (M2 macrophages and FoxP3(+) regulatory T cells). Importantly, CORM-A1 interfered with in vitro cytokine-induced beta cell apoptosis through the reduction of cytochrome c and caspase 3 levels. CONCLUSIONS/INTERPRETATION The ability of CORM-A1 to protect mice from developing type 1 diabetes provides a valuable proof of concept for the potential exploitation of controlled CO delivery in clinical settings for the treatment of autoimmune diabetes.
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Affiliation(s)
- Ivana Nikolic
- Department of Immunology, Institute for Biological Research 'Sinisa Stankovic', University of Belgrade, Bul. Despota Stefana 142, 11060, Belgrade, Serbia
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964
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Patterson EK, Fraser DD, Capretta A, Potter RF, Cepinskas G. Carbon monoxide-releasing molecule 3 inhibits myeloperoxidase (MPO) and protects against MPO-induced vascular endothelial cell activation/dysfunction. Free Radic Biol Med 2014; 70:167-73. [PMID: 24583458 DOI: 10.1016/j.freeradbiomed.2014.02.020] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/19/2013] [Revised: 02/19/2014] [Accepted: 02/19/2014] [Indexed: 12/20/2022]
Abstract
Polymorphonuclear leukocyte (PMN)-derived myeloperoxidase (MPO) contributes to the pathophysiology of numerous systemic inflammatory disorders through: (1) direct peroxidation of targets and (2) production of strong oxidizing compounds, e.g., hypohalous acids, particularly hypochlorous acid, which furthers oxidant damage and contributes to the propagation of inflammation and tissue injury/dysfunction. Carbon monoxide-releasing molecules (CORMs) offer potent anti-inflammatory effects; however, the mechanism(s) of action is not fully understood. This study assessed the potential of MPO activity inhibition by a water-soluble CORM, CORM-3. To this end, we used in vitro assays to study CORM-3-dependent modulation of MPO activity with respect to: (1) the inhibition of MPO's catalytic activity generally and (2) the specific inhibition of MPO's peroxidation and halogenation (i.e., production of hypochlorous acid) reactions. Further, we employed primary human umbilical vein endothelial cells (HUVECs) to investigate MPO-dependent cellular activation and dysfunction by measuring intracellular oxidant stress (DHR-123 oxidation) and HUVEC permeability (flux of Texas red-dextran), respectively. The results indicate that CORM-3 significantly inhibits MPO activity as well as MPO's peroxidation and hypohalous acid cycles specifically (p<0.05 vs uninhibited MPO). In addition, CORM-3 significantly decreases PMN homogenate- or rhMPO-induced intracellular DHR-123 oxidation in HUVECs and rhMPO-induced HUVEC monolayer permeability (p<0.05 vs untreated). In all assays the inactivated CORM-3 was significantly less effective than CORM-3 (p<0.05). Taken together our findings indicate that CORM-3 is a novel MPO inhibitor and mitigates inflammatory damage at least in part through a mechanism involving the inhibition of neutrophilic MPO activity.
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Affiliation(s)
- Eric K Patterson
- Centre for Critical Illness Research, Lawson Health Research Institute, London, ON N6A 4G4, Canada
| | - Douglas D Fraser
- Centre for Critical Illness Research, Lawson Health Research Institute, London, ON N6A 4G4, Canada; Children's Health Research Institute, Lawson Health Research Institute, London, ON N6A 4G4, Canada; Department of Physiology & Pharmacology, Department of Paediatrics, and Department of Clinical Neurological Sciences and Western University, London, ON, Canada
| | - Alfredo Capretta
- Department of Chemistry, McMaster University, Hamilton, ON, Canada
| | - Richard F Potter
- Centre for Critical Illness Research, Lawson Health Research Institute, London, ON N6A 4G4, Canada
| | - Gediminas Cepinskas
- Centre for Critical Illness Research, Lawson Health Research Institute, London, ON N6A 4G4, Canada; Department of Medical Biophysics, Western University, London, ON, Canada.
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965
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Marshall J. Deep-diving seals reveal secrets of carbon monoxide. Nature 2014. [DOI: 10.1038/nature.2014.15131] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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966
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Ohta S. Molecular hydrogen as a preventive and therapeutic medical gas: initiation, development and potential of hydrogen medicine. Pharmacol Ther 2014; 144:1-11. [PMID: 24769081 DOI: 10.1016/j.pharmthera.2014.04.006] [Citation(s) in RCA: 263] [Impact Index Per Article: 26.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2014] [Accepted: 04/14/2014] [Indexed: 02/07/2023]
Abstract
Molecular hydrogen (H2) has been accepted to be an inert and nonfunctional molecule in our body. We have turned this concept by demonstrating that H2 reacts with strong oxidants such as hydroxyl radical in cells, and proposed its potential for preventive and therapeutic applications. H2 has a number of advantages exhibiting extensive effects: H2 rapidly diffuses into tissues and cells, and it is mild enough neither to disturb metabolic redox reactions nor to affect signaling reactive oxygen species; therefore, there should be no or little adverse effects of H2. There are several methods to ingest or consume H2; inhaling H2 gas, drinking H2-dissolved water (H2-water), injecting H2-dissolved saline (H2-saline), taking an H2 bath, or dropping H2-saline into the eyes. The numerous publications on its biological and medical benefits revealed that H2 reduces oxidative stress not only by direct reactions with strong oxidants, but also indirectly by regulating various gene expressions. Moreover, by regulating the gene expressions, H2 functions as an anti-inflammatory and anti-apoptotic, and stimulates energy metabolism. In addition to growing evidence obtained by model animal experiments, extensive clinical examinations were performed or are under investigation. Since most drugs specifically act to their targets, H2 seems to differ from conventional pharmaceutical drugs. Owing to its great efficacy and lack of adverse effects, H2 has promising potential for clinical use against many diseases.
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Affiliation(s)
- Shigeo Ohta
- Department of Biochemistry and Cell Biology, Institute of Development and Aging Sciences, Graduate School of Medicine, Nippon Medical School, 1-396 Kosugi-machi, Nakahara-ku, Kawasaki-city, Kanagawa-ken, 211-8533 Japan.
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967
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Can M, Armstrong F, Ragsdale SW. Structure, function, and mechanism of the nickel metalloenzymes, CO dehydrogenase, and acetyl-CoA synthase. Chem Rev 2014; 114:4149-74. [PMID: 24521136 PMCID: PMC4002135 DOI: 10.1021/cr400461p] [Citation(s) in RCA: 373] [Impact Index Per Article: 37.3] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2013] [Indexed: 12/19/2022]
Affiliation(s)
- Mehmet Can
- Department
of Biological Chemistry, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Fraser
A. Armstrong
- Inorganic
Chemistry Laboratory, University of Oxford Oxford, OX1 3QR, United Kingdom
| | - Stephen W. Ragsdale
- Department
of Biological Chemistry, University of Michigan, Ann Arbor, Michigan 48109, United States
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968
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Chakraborty I, Carrington SJ, Mascharak PK. Photodelivery of CO by designed PhotoCORMs: correlation between absorption in the visible region and metal-CO bond labilization in carbonyl complexes. ChemMedChem 2014; 9:1266-74. [PMID: 24756950 DOI: 10.1002/cmdc.201402007] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2014] [Indexed: 12/21/2022]
Abstract
The therapeutic potential of photoactive CO-releasing molecules (photoCORMs) have called for close examination of the roles of the ligand(s) and the central metal atoms on the overall photochemical labilization of the metal-CO bonds. Along this line, we have synthesized four metal complexes, namely, [MnBr(azpy)(CO)3 ] (1), [Mn(azpy)(CO)3 (PPh3 )]ClO4 (2), [ReBr(azpy)(CO)3 ] (3), and [Re(azpy)(CO)3 (PPh3 )]ClO4 (4), derived from 2-phenylazopyridine. These complexes were characterized by spectroscopic and crystallographic studies. Although both 1 and 3 exhibit strong metal-to-ligand charge-transfer bands in the 500-600 nm region, only 1 photoreleases CO upon illumination with visible light. Results of theoretical studies were used to gain insight into this surprising difference. Strong spin-orbit coupling (prominent in heavy metals) appears to promote intersystem crossing to a triplet state in 3, a step that discourages CO release upon illumination with visible light. Slow release of CO from 2 and 4 also indicates that strong σ-donating ligands, such as Br(-) , accelerate the rate of CO photorelease relative to π-acid ligands, such as PPh3 .
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Affiliation(s)
- Indranil Chakraborty
- Department of Chemistry and Biochemistry, University of California Santa Cruz, 1156 High Street, Santa Cruz, CA 95064 (USA)
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969
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Nakao A, Yamada T, Kohama K, Yoshie N, Fujisaki N, Kotani J. Application of carbon monoxide for treatment of acute kidney injury. Acute Med Surg 2014; 1:127-134. [PMID: 29930836 DOI: 10.1002/ams2.38] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2013] [Accepted: 02/16/2014] [Indexed: 12/21/2022] Open
Abstract
Acute kidney injury in critically ill patients is common and associated with a substantial increase in morbidity and mortality. Even with aggressive medical care and renal replacement therapy, acute kidney injury remains a significant health care concern. Recent published reports offer new strategies for the prevention and amelioration of acute kidney injury using carbon monoxide. Although considered a toxic environmental gas, carbon monoxide has recently aroused scientific and clinical interest, as its beneficial effects and mechanisms of action have been substantially defined in various in vitro and in vivo experiments. The exogenous application of carbon monoxide can confer cytoprotection by modulating intracellular signaling pathways through its anti-inflammatory, anti-apoptotic, vasodilative, antithrombotic and antiproliferative properties. Thus, evidence is accumulating to support the notion of carbon monoxide treatment for acute kidney disease. In this review, we focus on the extensively analyzed advantageous value of treatment with inhaled/soluble carbon monoxide in the context of kidney injury. Mechanisms such as signaling pathways, as well as an expanded view regarding toxicity and side-effects, are described broadly. In addition, we discuss the clinical applicability of carbon monoxide as a promising therapeutic strategy for the treatment of patients with acute kidney disease based on translating basic experimental findings into clinical application.
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Affiliation(s)
- Atsunori Nakao
- Department of Emergency, Disaster, and Critical Care Medicine Hyogo College of Medicine Nishinomiya Japan
| | - Taihei Yamada
- Department of Emergency, Disaster, and Critical Care Medicine Hyogo College of Medicine Nishinomiya Japan
| | - Keisuke Kohama
- Department of Emergency, Disaster, and Critical Care Medicine Hyogo College of Medicine Nishinomiya Japan
| | - Norichika Yoshie
- Department of Emergency, Disaster, and Critical Care Medicine Hyogo College of Medicine Nishinomiya Japan
| | - Noritomo Fujisaki
- Department of Emergency, Disaster, and Critical Care Medicine Hyogo College of Medicine Nishinomiya Japan
| | - Joji Kotani
- Department of Emergency, Disaster, and Critical Care Medicine Hyogo College of Medicine Nishinomiya Japan
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970
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Duckles H, Boycott HE, Al-Owais MM, Elies J, Johnson E, Dallas ML, Porter KE, Giuntini F, Boyle JP, Scragg JL, Peers C. Heme oxygenase-1 regulates cell proliferation via carbon monoxide-mediated inhibition of T-type Ca2+ channels. Pflugers Arch 2014; 467:415-27. [PMID: 24744106 PMCID: PMC4293494 DOI: 10.1007/s00424-014-1503-5] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2014] [Revised: 03/14/2014] [Accepted: 03/14/2014] [Indexed: 11/24/2022]
Abstract
Induction of the antioxidant enzyme heme oxygenase-1 (HO-1) affords cellular protection and suppresses proliferation of vascular smooth muscle cells (VSMCs) associated with a variety of pathological cardiovascular conditions including myocardial infarction and vascular injury. However, the underlying mechanisms are not fully understood. Over-expression of Cav3.2 T-type Ca2+ channels in HEK293 cells raised basal [Ca2+]i and increased proliferation as compared with non-transfected cells. Proliferation and [Ca2+]i levels were reduced to levels seen in non-transfected cells either by induction of HO-1 or exposure of cells to the HO-1 product, carbon monoxide (CO) (applied as the CO releasing molecule, CORM-3). In the aortic VSMC line A7r5, proliferation was also inhibited by induction of HO-1 or by exposure of cells to CO, and patch-clamp recordings indicated that CO inhibited T-type (as well as L-type) Ca2+ currents in these cells. Finally, in human saphenous vein smooth muscle cells, proliferation was reduced by T-type channel inhibition or by HO-1 induction or CO exposure. The effects of T-type channel blockade and HO-1 induction were non-additive. Collectively, these data indicate that HO-1 regulates proliferation via CO-mediated inhibition of T-type Ca2+ channels. This signalling pathway provides a novel means by which proliferation of VSMCs (and other cells) may be regulated therapeutically.
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Affiliation(s)
- Hayley Duckles
- Division of Cardiovascular and Diabetes Research, LIGHT, Faculty of Medicine and Health, University of Leeds, Clarendon Way, Leeds, LS2 9JT, UK
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971
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Anderson BG, Spencer JL. The Coordination Chemistry of Pentafluorophenylphosphino Pincer Ligands to Platinum and Palladium. Chemistry 2014; 20:6421-32. [DOI: 10.1002/chem.201304398] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2013] [Revised: 03/04/2014] [Indexed: 11/06/2022]
Affiliation(s)
- Bradley G. Anderson
- School of Chemical and Physical Science, Victoria University of Wellington, Wellington (New Zealand)
| | - John L. Spencer
- School of Chemical and Physical Science, Victoria University of Wellington, Wellington (New Zealand)
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972
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Heinemann SH, Hoshi T, Westerhausen M, Schiller A. Carbon monoxide--physiology, detection and controlled release. Chem Commun (Camb) 2014; 50:3644-60. [PMID: 24556640 PMCID: PMC4072318 DOI: 10.1039/c3cc49196j] [Citation(s) in RCA: 291] [Impact Index Per Article: 29.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Carbon monoxide (CO) is increasingly recognized as a cell-signalling molecule akin to nitric oxide (NO). CO has attracted particular attention as a potential therapeutic agent because of its reported anti-hypertensive, anti-inflammatory and cell-protective effects. We discuss recent progress in identifying new effector systems and elucidating the mechanisms of action of CO on, e.g., ion channels, as well as the design of novel methods to monitor CO in cellular environments. We also report on recent developments in the area of CO-releasing molecules (CORMs) and materials for controlled CO application. Novel triggers for CO release, metal carbonyls and degradation mechanisms of CORMs are highlighted. In addition, potential formulations of CORMs for targeted CO release are discussed.
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Affiliation(s)
- Stefan H. Heinemann
- Center for Molecular Biomedicine (CMB), Department of Biophysics, Friedrich Schiller University Jena & Jena University Hospital, Hans-Knöll-Straße 2, D-07745 Jena, Germany
| | - Toshinori Hoshi
- Department of Physiology, University of Pennsylvania, 415 Curie Boulevard, 605 CRB, Philadelphia, PA 19104-6085, USA
| | - Matthias Westerhausen
- Institute for Inorganic and Analytical Chemistry, Friedrich Schiller University Jena, Humboldtstr. 8, D-07743 Jena, Germany
| | - Alexander Schiller
- Institute for Inorganic and Analytical Chemistry, Friedrich Schiller University Jena, Humboldtstr. 8, D-07743 Jena, Germany
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973
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Calay D, Mason JC. The multifunctional role and therapeutic potential of HO-1 in the vascular endothelium. Antioxid Redox Signal 2014; 20:1789-809. [PMID: 24131232 DOI: 10.1089/ars.2013.5659] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
SIGNIFICANCE Heme oxygenases (HO-1 and HO-2) catalyze the degradation of the pro-oxidant heme into carbon monoxide (CO), iron, and biliverdin, which is subsequently converted to bilirubin. In the vasculature, particular interest has focused on antioxidant and anti-inflammatory properties of the inducible HO-1 isoform in the vascular endothelium. This review will present evidence that illustrates the potential therapeutic significance of HO-1 and its products, with special emphasis placed on their beneficial effects on the endothelium in vascular diseases. RECENT ADVANCES The understanding of the molecular basis for the regulation and functions of HO-1 has led to the identification of a variety of drugs that increase HO-1 activity in the vascular endothelium. Moreover, therapeutic delivery of HO-1 products CO, biliverdin, and bilirubin has been shown to have favorable effects, notably on endothelial cells and in animal models of vascular disease. CRITICAL ISSUES To date, mechanistic data identifying the downstream target genes utilized by HO-1 and its products to exert their actions remain relatively sparse. Likewise, studies in man to investigate the efficacy of therapeutics known to induce HO-1 or the consequences of the tissue-specific delivery of CO or biliverdin/bilirubin are rarely performed. FUTURE DIRECTIONS Based on the promising in vivo data from animal models, clinical trials to explore the safety and efficacy of the therapeutic induction of HO-1 and the delivery of its products should now be pursued further, targeting, for example, patients with severe atherosclerotic disease, ischemic limbs, restenosis injury, or at high risk of organ rejection.
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Affiliation(s)
- Damien Calay
- Vascular Sciences Unit, National Heart and Lung Institute , Imperial Centre for Translational & Experimental Medicine, Imperial College London Hammersmith Hospital, London, United Kingdom
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974
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Abstract
SIGNIFICANCE Heme oxygenase enzymes, which exist as constitutive (HO-2) and inducible (HO-1) isoforms, degrade heme to carbon monoxide (CO) and the bile pigment biliverdin. In the last two decades, substantial scientific evidence has been collected on the function of HO-1 in cell homeostasis, emphasizing these two important features: (i) HO-1 is a fundamental "sensor" of cellular stress and directly contributes toward limiting or preventing tissue damage; (ii) the products of HO-1 activity dynamically participate in cellular adaptation to stress and are inherently involved in the mechanisms of defence. RECENT ADVANCES On the basis of its promising cytoprotective features, scientists have pursued the targeting of HO-1 as an attractive cellular pathway for drug discovery. Three different pharmacological approaches are currently being investigated in relation to HO-1, namely the use of CO gas, the development of CO-releasing molecules (CO-RMs), and small molecules possessing the ability to up-regulate HO-1 in cells and tissues. CRITICAL ISSUE: Studies on the regulation and amplification of the HO-1/CO pathway by selective pharmacological approaches may lead to the discovery of novel drugs for the treatment of a variety of diseases. FUTURE DIRECTIONS In this review, we will discuss in detail the importance of pharmacologically manipulating the HO-1 pathway and its products for conferring protection against a variety of conditions that are characterized by oxidative stress and inflammation. We will also evaluate each of the strategic approaches being developed by considering their intrinsic advantages and disadvantages, which may have implications for their use as therapeutics in specific pathological conditions.
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975
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Affiliation(s)
- Luisa B. Maia
- REQUIMTE/CQFB, Departamento
de Química, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
| | - José J. G. Moura
- REQUIMTE/CQFB, Departamento
de Química, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
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976
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Gonzales MA, Mascharak PK. Photoactive metal carbonyl complexes as potential agents for targeted CO delivery. J Inorg Biochem 2014; 133:127-35. [DOI: 10.1016/j.jinorgbio.2013.10.015] [Citation(s) in RCA: 88] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2013] [Revised: 10/18/2013] [Accepted: 10/19/2013] [Indexed: 01/06/2023]
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977
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Antiproliferative effects of carbon monoxide on pancreatic cancer. Dig Liver Dis 2014; 46:369-75. [PMID: 24433995 DOI: 10.1016/j.dld.2013.12.007] [Citation(s) in RCA: 70] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/14/2013] [Revised: 11/26/2013] [Accepted: 12/04/2013] [Indexed: 12/11/2022]
Abstract
BACKGROUND Carbon monoxide, the gaseous product of heme oxygenase, is a signalling molecule with a broad spectrum of biological activities. The aim of this study was to investigate the effects of carbon monoxide on proliferation of human pancreatic cancer. METHODS In vitro studies were performed on human pancreatic cancer cells (CAPAN-2, BxPc3, and PaTu-8902) treated with a carbon monoxide-releasing molecule or its inactive counterpart, or exposed to carbon monoxide gas (500 ppm/24h). For in vivo studies, pancreatic cancer cells (CAPAN-2/PaTu-8902) were xenotransplanted subcutaneously into athymic mice, subsequently treated with carbon monoxide-releasing molecule (35 mg/kg b.w. i.p./day), or exposed to safe doses of carbon monoxide (500 ppm 1h/day; n = 6 in each group). RESULTS Both carbon monoxide-releasing molecule and carbon monoxide exposure significantly inhibited proliferation of human pancreatic cancer cells (p<0.05). A substantial decrease in Akt phosphorylation was observed in carbon monoxide-releasing molecule compared with inactive carbon monoxide-releasing molecule treated cancer cells (by 30-50%, p<0.05). Simultaneously, carbon monoxide-releasing molecule and carbon monoxide exposure inhibited tumour proliferation and microvascular density of xenotransplanted tumours (p<0.01), and doubled the survival rates (p<0.005). Exposure of mice to carbon monoxide led to an almost 3-fold increase in carbon monoxide content in tumour tissues (p=0.006). CONCLUSION These data suggest a new biological function for carbon monoxide in carcinogenesis, and point to the potential chemotherapeutic/chemoadjuvant use of carbon monoxide in pancreatic cancer.
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978
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Wang P, Liu H, Zhao Q, Chen Y, Liu B, Zhang B, Zheng Q. Syntheses and evaluation of drug-like properties of CO-releasing molecules containing ruthenium and group 6 metal. Eur J Med Chem 2014; 74:199-215. [DOI: 10.1016/j.ejmech.2013.12.041] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2013] [Revised: 12/24/2013] [Accepted: 12/26/2013] [Indexed: 01/13/2023]
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979
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Onyiah JC, Sheikh SZ, Maharshak N, Otterbein LE, Plevy SE. Heme oxygenase-1 and carbon monoxide regulate intestinal homeostasis and mucosal immune responses to the enteric microbiota. Gut Microbes 2014; 5:220-4. [PMID: 24637794 PMCID: PMC4063848 DOI: 10.4161/gmic.27290] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
Heme oxygenase-1 (HO-1) and its enzymatic by-product carbon monoxide (CO) have emerged as important regulators of acute and chronic inflammation. Mechanisms underlying their anti-inflammatory effects are only partially understood. In this addendum, we summarize current understanding of the role of the HO-1/CO pathway in regulation of intestinal inflammation with a focus on innate immune function. In particular, we highlight our recent findings that HO-1 and CO ameliorate intestinal inflammation through promotion of bacterial clearance. Our work and that of many others support further investigation of this global homeostatic pathway in the human inflammatory bowel diseases (IBDs).
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Affiliation(s)
- Joseph C Onyiah
- Departments of Medicine, Microbiology, and Immunology; University of North Carolina School Medicine; Chapel Hill, NC USA
| | - Shehzad Z Sheikh
- Departments of Medicine, Microbiology, and Immunology; University of North Carolina School Medicine; Chapel Hill, NC USA
| | - Nitsan Maharshak
- Departments of Medicine, Microbiology, and Immunology; University of North Carolina School Medicine; Chapel Hill, NC USA,Department of Gastroenterology and Liver Diseases; Tel Aviv Sourasky Medical Center; Tel Aviv University; Tel Aviv, Israel
| | - Leo E Otterbein
- Department of Surgery; Transplant Institute; Beth Israel Deaconess Medical Center; Harvard Medical School; Boston, MA USA
| | - Scott E Plevy
- Departments of Medicine, Microbiology, and Immunology; University of North Carolina School Medicine; Chapel Hill, NC USA,Correspondence to: Scott E Plevy,
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980
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Abstract
Hypertensive disorders represent major causes of pregnancy-related maternal mortality worldwide. Similar to the non-pregnant population, hypertension is the most common medical disorder encountered during pregnancy and is estimated to occur in about 6-8 % of pregnancies. A recent report highlighted hypertensive disorders as one of the major causes of pregnancy-related maternal deaths in the USA, accounting for 579 (12.3 %) of the 4,693 maternal deaths that occurred between 1998 and 2005. In low-income and middle-income countries, preeclampsia and its convulsive form, eclampsia, are associated with 10-15 % of direct maternal deaths. The optimal timing and choice of therapy for hypertensive pregnancy disorders involves carefully weighing the risk-versus-benefit ratio for each individual patient, with an overall goal of improving maternal and fetal outcomes. In this review, we have compared and contrasted the recommendations from different treatment guidelines and outlined some newer perspectives on management. We aim to provide a clinically oriented guide to the drug treatment of hypertension in pregnancy.
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Affiliation(s)
- Catherine M Brown
- Division of Nephrology and Hypertension, Department of Medicine, Mayo Clinic College of Medicine, 200 First Street SW, Rochester, MN, 55905, USA
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981
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Foster JC, Powell CR, Radzinski SC, Matson JB. S-Aroylthiooximes: A Facile Route to Hydrogen Sulfide Releasing Compounds with Structure-Dependent Release Kinetics. Org Lett 2014; 16:1558-61. [DOI: 10.1021/ol500385a] [Citation(s) in RCA: 87] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Jeffrey C. Foster
- Department
of Chemistry, Virginia Tech, Blacksburg, Virginia 24061, United States
| | - Chadwick R. Powell
- Department
of Chemistry, Virginia Tech, Blacksburg, Virginia 24061, United States
| | - Scott C. Radzinski
- Department
of Chemistry, Virginia Tech, Blacksburg, Virginia 24061, United States
| | - John B. Matson
- Department
of Chemistry, Virginia Tech, Blacksburg, Virginia 24061, United States
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982
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Craici IM, Wagner SJ, Weissgerber TL, Grande JP, Garovic VD. Advances in the pathophysiology of pre-eclampsia and related podocyte injury. Kidney Int 2014; 86:275-85. [PMID: 24573315 PMCID: PMC4117806 DOI: 10.1038/ki.2014.17] [Citation(s) in RCA: 90] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2013] [Revised: 11/04/2013] [Accepted: 11/14/2013] [Indexed: 12/12/2022]
Abstract
Pre-eclampsia is a pregnancy-specific hypertensive disorder that may lead to serious maternal and fetal complications. It is a multisystem disease that is commonly, but not always, accompanied by proteinuria. Its cause(s) remain unknown, and delivery remains the only definitive treatment. It is increasingly recognized that many pathophysiological processes contribute to this syndrome, with different signaling pathways converging at the point of systemic endothelial dysfunction, hypertension, and proteinuria. Different animal models of pre-eclampsia have proven utility for specific aspects of pre-eclampsia research, and offer insights into pathophysiology and treatment possibilities. Therapeutic interventions that specifically target these pathways may optimize pre-eclampsia management and may improve fetal and maternal outcomes. In addition, recent findings regarding placental, endothelial, and podocyte pathophysiology in pre-eclampsia provide unique and exciting possibilities for improved diagnostic accuracy. Emerging evidence suggests that testing for urinary podocytes or their markers may facilitate the prediction and diagnosis of pre-eclampsia. In this review, we explore recent research regarding placental, endothelial, and podocyte pathophysiology. We further discuss new signaling and genetic pathways that may contribute to pre-eclampsia pathophysiology, emerging screening and diagnostic strategies, and potential targeted interventions.
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Affiliation(s)
- Iasmina M Craici
- Division of Nephrology, University of Mississippi Medical Center, Jackson, Mississippi, USA
| | - Steven J Wagner
- Division of Nephrology, University of Mississippi Medical Center, Jackson, Mississippi, USA
| | | | - Joseph P Grande
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, Minnesota, USA
| | - Vesna D Garovic
- Division of Nephrology and Hypertension, Mayo Clinic, Rochester, Minnesota, USA
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983
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Joe Y, Uddin MJ, Zheng M, Kim HJ, Chen Y, Yoon NA, Cho GJ, Park JW, Chung HT. Tristetraprolin mediates anti-inflammatory effect of carbon monoxide against DSS-induced colitis. PLoS One 2014; 9:e88776. [PMID: 24586391 PMCID: PMC3929600 DOI: 10.1371/journal.pone.0088776] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2013] [Accepted: 01/15/2014] [Indexed: 01/08/2023] Open
Abstract
Endogenous carbon monoxide (CO) exerts anti-inflammatory effects. Tristetraprolin (TTP) is known to destabilize pro-inflammatory transcripts. Here we found that exogenous CO enhanced the decay of TNF-α mRNA and suppressed TNF-α expression in LPS-activated macrophages from wild-type (WT) mice. However, TTP deficiency abrogated the effects of exogenous CO. While CO treatment prior to DSS administration in WT mice significantly reduced inflammatory cytokine levels and colitis, it failed to reduce the pro-inflammatory cytokine levels and colitis in TTP knockout (KO) mice. Our results demonstrate that TTP is a key factor mediating the anti-inflammatory action of CO in DSS-induced colitis.
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Affiliation(s)
- Yeonsoo Joe
- Department of Biological Sciences, University of Ulsan, Ulsan, Korea
| | - Md. Jamal Uddin
- Department of Biological Sciences, University of Ulsan, Ulsan, Korea
| | - Min Zheng
- Department of Biological Sciences, University of Ulsan, Ulsan, Korea
- Department of Thoracic and Cardiovascular Surgery, Affiliated Hospital of Yanbian University, Yanji, China
| | - Hyo Jeong Kim
- Department of Biological Sciences, University of Ulsan, Ulsan, Korea
| | - Yingqing Chen
- Department of Biological Sciences, University of Ulsan, Ulsan, Korea
| | - Nal Ae Yoon
- Department of Biological Sciences, University of Ulsan, Ulsan, Korea
| | - Gyeong Jae Cho
- Department of Anatomy, School of Medicine and Institute of Health Sciences, Gyeongsang National University, Jinju, Korea
| | - Jeong Woo Park
- Department of Biological Sciences, University of Ulsan, Ulsan, Korea
- * E-mail: (HTC); (JWP)
| | - Hun Taeg Chung
- Department of Biological Sciences, University of Ulsan, Ulsan, Korea
- * E-mail: (HTC); (JWP)
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984
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Poh HT, Sim BT, Chwee TS, Leong WK, Fan WY. The Dithiolate-Bridged Diiron Hexacarbonyl Complex Na2[(μ-SCH2CH2COO)Fe(CO)3]2 as a Water-Soluble PhotoCORM. Organometallics 2014. [DOI: 10.1021/om401013a] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Hwa Tiong Poh
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543
| | - Bai Ting Sim
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543
| | - Tsz Sian Chwee
- Institute of High Performance
Computing, Agency for Science, Research and Technology (A*STAR), 1 Fusionopolis Way, Singapore 138632
| | - Weng Kee Leong
- Division of Chemistry & Biological Chemistry, Nanyang Technological University SPMS-04-01, 21 Nanyang Avenue, SPMS-CBC-06-07, Singapore 637371
| | - Wai Yip Fan
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543
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985
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Tian L, Qiu H, Pun VC, Lin H, Ge E, Chan JC, Louie PK, Ho KF, Yu ITS. Ambient carbon monoxide associated with reduced risk of hospital admissions for respiratory tract infections. Am J Respir Crit Care Med 2014; 188:1240-5. [PMID: 23944864 DOI: 10.1164/rccm.201304-0676oc] [Citation(s) in RCA: 64] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
RATIONALE Recent experimental and clinical studies suggest that exogenous carbon monoxide (CO) at lower concentrations may have beneficial effects under certain circumstances, whereas population-based epidemiologic studies of environmentally relevant CO exposure generated mixed findings. OBJECTIVES To examine the acute effects of ambient CO on respiratory tract infection (RTI) hospitalizations. METHODS A time series study was conducted. Daily emergency hospital admission and air pollution data in Hong Kong were collected from January 2001 to December 2007. Log-linear Poisson models were used to estimate the associations between daily hospital admissions for RTI and daily average concentrations of CO across three background air monitoring stations and three roadside stations, respectively, controlling for other traffic-related copollutants. MEASUREMENTS AND MAIN RESULTS CO concentrations were low during the study period with a daily average of 0.6 ppm in background stations and 1.0 ppm in roadside stations. Negative associations were found between ambient CO concentrations and daily hospital admissions for RTI. One ppm increase in background CO at lag 0-2 days was associated with -5.7% (95% confidence interval, -9.2 to -2.1) change in RTI admissions from the whole population according to single-pollutant model; the negative association became stronger when nitrogen dioxide or particulate matter with aerodynamic diameter less than 10 μm was adjusted for in two-pollutant models. The negative association seemed to be stronger in the adults than in the children and elderly. CONCLUSIONS Short-term exposure to ambient CO was associated with decreased risk of hospital admissions for RTI, suggesting some acute protective effects of low ambient CO exposure on respiratory infection.
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Affiliation(s)
- Linwei Tian
- 1 The Jockey Club School of Public Health and Primary Care, Prince of Wales Hospital, The Chinese University of Hong Kong, Shatin-NT, Hong Kong Special Administrative Region, China
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986
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Pai S, Hafftlang M, Atongo G, Nagel C, Niesel J, Botov S, Schmalz HG, Yard B, Schatzschneider U. New modular manganese(i) tricarbonyl complexes as PhotoCORMs: in vitro detection of photoinduced carbon monoxide release using COP-1 as a fluorogenic switch-on probe. Dalton Trans 2014; 43:8664-78. [DOI: 10.1039/c4dt00254g] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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987
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988
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Chen L, Jiang X, Wang X, Long L, Zhang J, Liu X. A kinetic analysis of CO release from a diiron hexacarbonyl complex promoted by amino acids. NEW J CHEM 2014. [DOI: 10.1039/c4nj00661e] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
CO release from [Fe2{μ-SCH2CH(OH)CH2(OH)}(CO)6] initiated by amino acids depends highly on the nature of the acids. Among the examined amino acids, glutamate, a ligand with a chelating effect and an additional functional group, exhibits the best efficiency in promoting the CO release.
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Affiliation(s)
- Limei Chen
- School of Metallurgy and Chemical Engineering
- Jiangxi University of Science and Technology
- Ganzhou 341000, China
- College of Biological
- Chemical Sciences and Engineering
| | - Xiujuan Jiang
- College of Biological
- Chemical Sciences and Engineering
- Jiaxing University
- Jiaxing 314001, China
| | - Xiu Wang
- College of Biological
- Chemical Sciences and Engineering
- Jiaxing University
- Jiaxing 314001, China
| | - Li Long
- College of Biological
- Chemical Sciences and Engineering
- Jiaxing University
- Jiaxing 314001, China
| | - Jiayao Zhang
- College of Biological
- Chemical Sciences and Engineering
- Jiaxing University
- Jiaxing 314001, China
| | - Xiaoming Liu
- School of Metallurgy and Chemical Engineering
- Jiangxi University of Science and Technology
- Ganzhou 341000, China
- College of Biological
- Chemical Sciences and Engineering
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989
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Bohlender C, Gläser S, Klein M, Weisser J, Thein S, Neugebauer U, Popp J, Wyrwa R, Schiller A. Light-triggered CO release from nanoporous non-wovens. J Mater Chem B 2014; 2:1454-1463. [DOI: 10.1039/c3tb21649g] [Citation(s) in RCA: 70] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A versatile CO releasing material (CORMA) was generated by embedding light-sensitive Mn2(CO)10 into nanoporous non-wovens via electrospinning.
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Affiliation(s)
- Carmen Bohlender
- Friedrich Schiller University Jena
- Institute for Inorganic and Analytical Chemistry (IAAC)
- 07743 Jena, Germany
| | - Steve Gläser
- Friedrich Schiller University Jena
- Institute for Inorganic and Analytical Chemistry (IAAC)
- 07743 Jena, Germany
| | - Moritz Klein
- Leibniz Institute of Photonic Technology
- 07745 Jena, Germany
| | | | - Susanne Thein
- INNOVENT e.V
- Biomaterials Department
- 07745 Jena, Germany
| | - Ute Neugebauer
- Leibniz Institute of Photonic Technology
- 07745 Jena, Germany
- Center for Sepsis Control and Care
- Jena University Hospital
- 07747 Jena, Germany
| | - Jürgen Popp
- Leibniz Institute of Photonic Technology
- 07745 Jena, Germany
- Institute of Physical Chemistry and Abbe Center of Photonics
- Friedrich Schiller University Jena
- 07743 Jena, Germany
| | - Ralf Wyrwa
- INNOVENT e.V
- Biomaterials Department
- 07745 Jena, Germany
| | - Alexander Schiller
- Friedrich Schiller University Jena
- Institute for Inorganic and Analytical Chemistry (IAAC)
- 07743 Jena, Germany
- Friedrich Schiller University Jena
- Jena Center for Soft Matter (JCSM)
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990
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Jiang X, Long L, Wang H, Chen L, Liu X. Diiron hexacarbonyl complexes as potential CO-RMs: CO-releasing initiated by a substitution reaction with cysteamine and structural correlation to the bridging linkage. Dalton Trans 2014; 43:9968-75. [DOI: 10.1039/c3dt53620c] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Substitution-initiated CO-releasing rate of diiron hexacarbonyl complexes are highly dependent on their bridging linkages and the complexes of the “open” form release CO much faster than those of the “close” form.
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Affiliation(s)
- Xiujuan Jiang
- College of Biological
- Chemical Sciences and Engineering
- Jiaxing University
- Jiaxing 314001, China
| | - Li Long
- College of Biological
- Chemical Sciences and Engineering
- Jiaxing University
- Jiaxing 314001, China
| | - Hailong Wang
- College of Biological
- Chemical Sciences and Engineering
- Jiaxing University
- Jiaxing 314001, China
| | - Limei Chen
- School of Metallurgy and Chemical Engineering
- Jiangxi University of Science and Technology
- Jiangxi 341000, China
| | - Xiaoming Liu
- College of Biological
- Chemical Sciences and Engineering
- Jiaxing University
- Jiaxing 314001, China
- School of Metallurgy and Chemical Engineering
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991
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Gonzales MA, Han H, Moyes A, Radinos A, Hobbs AJ, Coombs N, Oliver SRJ, Mascharak PK. Light-triggered carbon monoxide delivery with Al-MCM-41-based nanoparticles bearing a designed manganese carbonyl complex. J Mater Chem B 2014; 2:2107-2113. [DOI: 10.1039/c3tb21309a] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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992
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The bactericidal activity of carbon monoxide-releasing molecules against Helicobacter pylori. PLoS One 2013; 8:e83157. [PMID: 24386154 PMCID: PMC3873287 DOI: 10.1371/journal.pone.0083157] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2013] [Accepted: 10/30/2013] [Indexed: 12/19/2022] Open
Abstract
Helicobacter pylori is a pathogen that establishes long life infections responsible for chronic gastric ulcer diseases and a proved risk factor for gastric carcinoma. The therapeutic properties of carbon-monoxide releasing molecules (CORMs) led us to investigate their effect on H. pylori. We show that H. pylori 26695 is susceptible to two widely used CORMs, namely CORM-2 and CORM-3. Also, several H. pylori clinical isolates were killed by CORM-2, including those resistant to metronidazole. Moreover, sub-lethal doses of CORM-2 combined with metronidazole, amoxicillin and clarithromycin was found to potentiate the effect of the antibiotics. We further demonstrate that the mechanisms underpinning the antimicrobial effect of CORMs involve the inhibition of H. pylori respiration and urease activity. In vivo studies done in key cells of the innate immune system, such as macrophages, showed that CORM-2, either alone or when combined with metronidazole, strongly reduces the ability of H. pylori to infect animal cells. Hence, CORMs have the potential to kill antibiotic resistant strains of H. pylori.
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993
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Xue J, Habtezion A. Carbon monoxide-based therapy ameliorates acute pancreatitis via TLR4 inhibition. J Clin Invest 2013; 124:437-47. [PMID: 24334457 DOI: 10.1172/jci71362] [Citation(s) in RCA: 60] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2013] [Accepted: 10/11/2013] [Indexed: 12/14/2022] Open
Abstract
The protective role of hemeoxygenase-1 (HO-1) in various inflammatory conditions is mediated in part by its products, carbon monoxide (CO) and biliverdin. Here we investigated a therapeutic role for CO and CO-primed cells in acute pancreatitis (AP). In a mouse model of AP, treatment with CO-releasing molecule-2 (CORM-2) decreased mortality, pancreatic damage, and lung injury. CORM-2 decreased systemic inflammatory cytokines, suppressed systemic and pancreatic macrophage TNF-α secretion, and inhibited macrophage TLR4 receptor complex expression. In both human and mouse cells, CORM-2 inhibited endogenous and exogenous ligand-dependent TLR4 activation, which indicates that CORM-2 could be therapeutic for both early and late stages of AP, which involve sterile- and endotoxin-mediated inflammation, respectively. Mice engrafted with TLR4-deficient hematopoietic cells were protected against caerulein-induced AP. In the absence of leukocyte TLR4 expression, CORM-2 did not confer additional protection, which indicates that CORM-2-dependent effects are mediated via suppression of macrophage TLR4 activation. We determined that CO was directly responsible for the protective effects of CORM-2 in AP, as inactive forms of CORM-2 were ineffective. Importantly, adoptive transfer of CORM-2-primed cells reduced AP. Such a therapeutic approach would translate the beneficial effects of CO-based therapies, avoiding CO- or CO-RM-mediated toxicities in AP and a wide range of diseases.
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994
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Zhao S, Lin Q, Li H, He Y, Fang X, Chen F, Chen C, Huang Z. Carbon monoxide releasing molecule‑2 attenuated ischemia/reperfusion‑induced apoptosis in cardiomyocytes via a mitochondrial pathway. Mol Med Rep 2013; 9:754-62. [PMID: 24337106 DOI: 10.3892/mmr.2013.1861] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2013] [Accepted: 11/27/2013] [Indexed: 11/06/2022] Open
Abstract
Carbon monoxide (CO) is an endogenous gaseous transmitter that exerts multi-protection in ischemia/reperfusion (I/R) injury, but few experimental studies regarding CO on myocardial I/R-induced apoptosis, as well as its underlying mechanism have been conducted. The present study was designed to investigate whether CO released from CO-releasing molecule-2 (CORM-2) is capable of ameliorating myocardial I/R-induced apoptosis via a mitochondrial apoptotic pathway. Primary cultures of neonatal rat cardiomyocytes were randomly distributed into four groups: Control, I/R (cultured cardiomyocytes were subjected to 2 h simulated ischemia followed by 4 h reperfusion), CORM-2 and inactive CORM-2 (iCORM-2) groups (20 µM CORM-2 and 20 µM iCORM-2 were administered at the beginning of reperfusion following ischemia, respectively). Flow cytometric analysis showed that CORM-2 treatment significantly decreased apoptosis of cardiomyocytes triggered by simulated I/R. CORM-2 partially recovered mitochondrial respiration and ultrastructure alteration, and lowered caspase-3 expression and the release of cytochrome c. Furthermore, CORM-2 partly reduced BAK/BAX expression in mitochondria, as well as the BAX level in the cytoplasm. Cardioprotection is lost when CORM-2 is replaced by iCORM-2. CORM-2 treatment, at the time of reperfusion, was concluded to attenuate myocardial I/R-induced apoptosis. The protection mechanisms may be targeted to the mitochondria and involved in the inhibition of the BAK/BAX‑mediated intrinsic pathway.
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Affiliation(s)
- Shen Zhao
- Department of Emergency, Sun Yat‑sen Memorial Hospital, Sun Yat‑sen University, Guangzhou, Guangdong 510120, P.R. China
| | - Qingming Lin
- Department of Emergency, Sun Yat‑sen Memorial Hospital, Sun Yat‑sen University, Guangzhou, Guangdong 510120, P.R. China
| | - Heng Li
- Department of Emergency, Sun Yat‑sen Memorial Hospital, Sun Yat‑sen University, Guangzhou, Guangdong 510120, P.R. China
| | - Yumin He
- Department of Emergency, Sun Yat‑sen Memorial Hospital, Sun Yat‑sen University, Guangzhou, Guangdong 510120, P.R. China
| | - Xiangshao Fang
- Department of Emergency, Sun Yat‑sen Memorial Hospital, Sun Yat‑sen University, Guangzhou, Guangdong 510120, P.R. China
| | - Feng Chen
- Provincial Clinical Medical College of Fujian Medical University, Fuzhou, Fujian 350001, P.R. China
| | - Changwei Chen
- Taiping People's Hospital of Dongguan City, Dongguan, Guangdong 523900, P.R. China
| | - Zitong Huang
- Department of Emergency, Sun Yat‑sen Memorial Hospital, Sun Yat‑sen University, Guangzhou, Guangdong 510120, P.R. China
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995
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Abid S, Houssaïni A, Mouraret N, Marcos E, Amsellem V, Wan F, Dubois-Randé JL, Derumeaux G, Boczkowski J, Motterlini R, Adnot S. P21-dependent protective effects of a carbon monoxide-releasing molecule-3 in pulmonary hypertension. Arterioscler Thromb Vasc Biol 2013; 34:304-12. [PMID: 24334871 DOI: 10.1161/atvbaha.113.302302] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
OBJECTIVE Carbon monoxide-releasing molecules (CORMs) represent a pharmacological alternative to CO gas inhalation. Here, we questioned whether CORM-3, a well-characterized water-soluble CORM, could prevent and reverse pulmonary hypertension (PH) in chronically hypoxic mice and in smooth muscle promoter 22 serotonin transporter mice overexpressing the serotonin transporter in smooth muscle cells (SMCs). APPROACH AND RESULTS Treatment with CORM-3 (50 mg/kg per day once daily) for 3 weeks prevented PH, right ventricular hypertrophy, and distal pulmonary artery muscularization in mice exposed to chronic hypoxia and partially reversed PH in smooth muscle promoter 22 serotonin transporter mice by reducing Ki67 dividing pulmonary artery SMCs (PA-SMCs). In these models, CORM-3 markedly increased lung p21 mRNA and protein levels and p21-stained PA-SMCs. These effects contrasted with the transient pulmonary vasodilatation and rise in lung cGMP levels induced by a single injection of CORM-3 in mice exposed to acute hypoxia. Studies in cultured rat PA-SMCs revealed that the inhibitory effects of CORM-3 on cell growth were independent of cGMP formation but associated with increased p21 mRNA and protein levels. Protection against PH by CORM-3 required increased lung expression of p21, as indicated by the inability of CORM-3 to prevent chronic hypoxia-induced PH in p21-deficient mice and to alter the growth of PA-SMCs derived from p21-deficient mice. CORM-3-induced p21 overexpression was linked to p53 activation as assessed by the inability of CORM-3 to prevent PH and induce p21 expression in p53-deficient mice and in PA-SMCs derived from p53-deficient mice. CONCLUSIONS CORM-3 inhibits pulmonary vascular remodeling via p21, which may represent a useful approach for treating PH.
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Affiliation(s)
- Shariq Abid
- From the INSERM U955, Département de Physiologie (S.A., A.H., N.M., E.M., V.A., F.W., G.D., J.B., R.M., S.A.) and Service de Cardiologie (J.L.D.-R.), Hôpital Henri Mondor, AP-HP, Université Paris-Est Creteil (UPEC), Créteil, France
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996
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Therapeutic applications of carbon monoxide. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2013; 2013:360815. [PMID: 24648866 PMCID: PMC3932177 DOI: 10.1155/2013/360815] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/19/2013] [Revised: 10/21/2013] [Accepted: 11/05/2013] [Indexed: 11/17/2022]
Abstract
Heme oxygenase-1 (HO-1) is a regulated enzyme induced in multiple stress states. Carbon monoxide (CO) is a product of HO catalysis of heme. In many circumstances, CO appears to functionally replace HO-1, and CO is known to have endogenous anti-inflammatory, anti-apoptotic, and antiproliferative effects. CO is well studied in anoxia-reoxygenation and ischemia-reperfusion models and has advanced to phase II trials for treatment of several clinical entities. In alternative injury models, laboratories have used sepsis, acute lung injury, and systemic inflammatory challenges to assess the ability of CO to rescue cells, organs, and organisms. Hopefully, the research supporting the protective effects of CO in animal models will translate into therapeutic benefits for patients. Preclinical studies of CO are now moving towards more complex damage models that reflect polymicrobial sepsis or two-step injuries, such as sepsis complicated by acute respiratory distress syndrome. Furthermore, co-treatment and post-treatment with CO are being explored in which the insult occurs before there is an opportunity to intervene therapeutically. The aim of this review is to discuss the potential therapeutic implications of CO with a focus on lung injury and sepsis-related models.
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997
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Romanski S, Stamellou E, Jaraba JT, Storz D, Krämer BK, Hafner M, Amslinger S, Schmalz HG, Yard BA. Enzyme-triggered CO-releasing molecules (ET-CORMs): evaluation of biological activity in relation to their structure. Free Radic Biol Med 2013; 65:78-88. [PMID: 23774042 DOI: 10.1016/j.freeradbiomed.2013.06.014] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/29/2012] [Revised: 02/08/2013] [Accepted: 06/07/2013] [Indexed: 10/26/2022]
Abstract
Acyloxydiene-Fe(CO)3 complexes act as enzyme-triggered CO-releasing molecules (ET-CORMs) and can deliver CO intracellularly via esterase-mediated hydrolysis. The protective properties of structurally different ET-CORMs on hypothermic preservation damage and their ability to inhibit VCAM-1 expression were tested on cultured human umbilical vein endothelial cells (HUVEC) and renal proximal tubular epithelial cells (PTEC) using a structure-activity approach. Cytotoxicity of ET-CORMs, protection against hypothermic preservation damage, and inhibition of VCAM-1 expression were assessed. Cytotoxicity of 2-cyclohexenone and 1,3-cyclohexanedione-derived ET-CORMs was more pronounced in HUVEC compared to PTEC and was dependent on the position and type of the ester (acyloxy) substituent(s) (acetate>pivalate>palmitate). Protection against hypothermic preservation injury was only observed for 2-cyclohexenone-derived ET-CORMs and was not mediated by the ET-CORM decomposition product 2-cyclohexenone itself. Structural requirements for protection by these ET-CORMs were different for HUVEC and PTEC. Protection was affected by the nature of the ester functionality in both cell lines. VCAM-1 expression was inhibited by both 2-cyclohexenone- and 1,3-cyclohexanedione-derived ET-CORMs. 2-Cyclohexenone, but not 1,3-cyclohexanedione, also inhibited VCAM-1 expression. We demonstrate that structural alterations of ET-CORMs significantly affect their biological activity. Our data also indicate that different ET-CORMs behave differently in various cell types (epithelial vs endothelial). These findings warrant further studies not only to elucidate the structure-activity relation of ET-CORMs in mechanistic terms but also to assess if structural optimization will yield ET-CORMs with restricted cell specificity.
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Affiliation(s)
- S Romanski
- Department of Chemistry, University of Cologne, Greinstr. 4, 50939 Köln, Germany
| | - E Stamellou
- Vth Medical Department, University Hospital Mannheim, Theodor-Kutzer-Ufer 1-3, 68167, Mannheim, Germany.
| | - J T Jaraba
- Vth Medical Department, University Hospital Mannheim, Theodor-Kutzer-Ufer 1-3, 68167, Mannheim, Germany
| | - D Storz
- Vth Medical Department, University Hospital Mannheim, Theodor-Kutzer-Ufer 1-3, 68167, Mannheim, Germany
| | - B K Krämer
- Vth Medical Department, University Hospital Mannheim, Theodor-Kutzer-Ufer 1-3, 68167, Mannheim, Germany
| | - M Hafner
- Institut für Molekülar- and Zellbiologie, Hochschule Mannheim, Paul-Wittsack-Str. 10, 68163 Mannheim, Germany
| | - S Amslinger
- Institut für Organische Chemie, Universität Regensburg, Universitätsstrasse 31, 93053 Regensburg, Germany
| | - H G Schmalz
- Department of Chemistry, University of Cologne, Greinstr. 4, 50939 Köln, Germany
| | - B A Yard
- Vth Medical Department, University Hospital Mannheim, Theodor-Kutzer-Ufer 1-3, 68167, Mannheim, Germany
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998
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Moragues ME, Brines R, Terencio MC, Sancenón F, Martínez-Máñez R, Alcaraz MJ. CO-Releasing Binuclear Rhodium Complexes as Inhibitors of Nitric Oxide Generation in Stimulated Macrophages. Inorg Chem 2013; 52:13806-8. [DOI: 10.1021/ic401967g] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- María E. Moragues
- Centro de Reconocimiento Molecular y Desarrollo
Tecnológico, Unidad Mixta Universitat Politècnica de
Valéncia, Universitat de València, Camino de Vera s/n, 46022 Valencia, Spain
- CIBER de Bioingeniería, Biomateriales y Nanomedicina, 50018 Zaragoza, Spain
| | - Rita Brines
- Centro de Reconocimiento Molecular y Desarrollo
Tecnológico, Unidad Mixta Universitat Politècnica de
Valéncia, Universitat de València, Camino de Vera s/n, 46022 Valencia, Spain
| | - MCarmen Terencio
- Centro de Reconocimiento Molecular y Desarrollo
Tecnológico, Unidad Mixta Universitat Politècnica de
Valéncia, Universitat de València, Camino de Vera s/n, 46022 Valencia, Spain
- Departament de Farmacologia, Universitat de València, Av. Vicent Andrés Estellés s/n, 46100 Burjassot, Valencia, Spain
| | - Félix Sancenón
- Centro de Reconocimiento Molecular y Desarrollo
Tecnológico, Unidad Mixta Universitat Politècnica de
Valéncia, Universitat de València, Camino de Vera s/n, 46022 Valencia, Spain
- CIBER de Bioingeniería, Biomateriales y Nanomedicina, 50018 Zaragoza, Spain
| | - Ramón Martínez-Máñez
- Centro de Reconocimiento Molecular y Desarrollo
Tecnológico, Unidad Mixta Universitat Politècnica de
Valéncia, Universitat de València, Camino de Vera s/n, 46022 Valencia, Spain
- CIBER de Bioingeniería, Biomateriales y Nanomedicina, 50018 Zaragoza, Spain
| | - MJosé Alcaraz
- Centro de Reconocimiento Molecular y Desarrollo
Tecnológico, Unidad Mixta Universitat Politècnica de
Valéncia, Universitat de València, Camino de Vera s/n, 46022 Valencia, Spain
- Departament de Farmacologia, Universitat de València, Av. Vicent Andrés Estellés s/n, 46100 Burjassot, Valencia, Spain
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999
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cor, a novel carbon monoxide resistance gene, is essential for Mycobacterium tuberculosis pathogenesis. mBio 2013; 4:e00721-13. [PMID: 24255121 PMCID: PMC3870250 DOI: 10.1128/mbio.00721-13] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
UNLABELLED Tuberculosis, caused by Mycobacterium tuberculosis, remains a devastating human infectious disease, causing two million deaths annually. We previously demonstrated that M. tuberculosis induces an enzyme, heme oxygenase (HO1), that produces carbon monoxide (CO) gas and that M. tuberculosis adapts its transcriptome during CO exposure. We now demonstrate that M. tuberculosis carries a novel resistance gene to combat CO toxicity. We screened an M. tuberculosis transposon library for CO-susceptible mutants and found that disruption of Rv1829 (carbon monoxide resistance, Cor) leads to marked CO sensitivity. Heterologous expression of Cor in Escherichia coli rescued it from CO toxicity. Importantly, the virulence of the cor mutant is attenuated in a mouse model of tuberculosis. Thus, Cor is necessary and sufficient to protect bacteria from host-derived CO. Taken together, this represents the first report of a role for HO1-derived CO in controlling infection of an intracellular pathogen and the first identification of a CO resistance gene in a pathogenic organism. IMPORTANCE Macrophages produce a variety of antimicrobial molecules, including nitric oxide (NO), hydrogen peroxide (H2O2), and acid (H+), that serve to kill engulfed bacteria. In addition to these molecules, human and mouse macrophages also produce carbon monoxide (CO) gas by the heme oxygenase (HO1) enzyme. We observed that, in contrast to other bacteria, mycobacteria are resistant to CO, suggesting that this might be an evolutionary adaptation of mycobacteria for survival within macrophages. We screened a panel of ~2,500 M. tuberculosis mutants to determine which genes are required for survival of M. tuberculosis in the presence of CO. Within this panel, we identified one such gene, cor, that specifically confers CO resistance. Importantly, we found that the ability of M. tuberculosis cells carrying a mutated copy of this gene to cause tuberculosis in a mouse disease model is significantly attenuated. This indicates that CO resistance is essential for mycobacterial survival in vivo.
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1000
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Kunz PC, Meyer H, Barthel J, Sollazzo S, Schmidt AM, Janiak C. Metal carbonyls supported on iron oxide nanoparticles to trigger the CO-gasotransmitter release by magnetic heating. Chem Commun (Camb) 2013; 49:4896-8. [PMID: 23609342 DOI: 10.1039/c3cc41411f] [Citation(s) in RCA: 103] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Magnetic iron oxide, maghemite (Fe2O3) nanoparticles with covalent surface-bound CO-releasing molecules (CORMs) can be triggered to release CO through heating in an alternating magnetic field. In the proof-of-concept study the rate of CO-release from [RuCl(CO3)(μ-DOPA)]@maghemite nanoparticles was doubled upon exposure to an external alternating magnetic field (31.7 kAm(-1), 247 kHz, 25 °C, 39.9 mTesla, DOPA = dioxyphenyl-alaninato).
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Affiliation(s)
- Peter C Kunz
- Institut für Anorganische Chemie und Strukturchemie, Universität Düsseldorf, 40204 Düsseldorf, Germany.
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