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Dual Host-Intracellular Parasite Transcriptome of Enucleated Cells Hosting Leishmania amazonensis: Control of Half-Life of Host Cell Transcripts by the Parasite. Infect Immun 2020; 88:IAI.00261-20. [PMID: 32817329 DOI: 10.1128/iai.00261-20] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Accepted: 08/10/2020] [Indexed: 12/20/2022] Open
Abstract
Enucleated cells or cytoplasts (cells whose nucleus is removed in vitro) represent an unexplored biological model for intracellular infection studies due to the abrupt interruption of nuclear processing and new RNA synthesis by the host cell in response to pathogen entry. Using enucleated fibroblasts hosting the protozoan parasite Leishmania amazonensis, we demonstrate that parasite multiplication and biogenesis of large parasitophorous vacuoles in which parasites multiply are independent of the host cell nucleus. Dual RNA sequencing of both host cytoplast and intracellular parasite transcripts identified host transcripts that are more preserved or degraded upon interaction with parasites and also parasite genes that are differentially expressed when hosted by nucleated or enucleated cells. Cytoplasts are suitable host cells, which persist in culture for more than 72 h and display functional enrichment of transcripts related to mitochondrial functions and mRNA translation. Crosstalk between nucleated host de novo gene expression in response to intracellular parasitism and the parasite gene expression to counteract or benefit from these host responses induces a parasite transcriptional profile favoring parasite multiplication and aerobic respiration, and a host-parasite transcriptional landscape enriched in host cell metabolic functions related to NAD, fatty acid, and glycolytic metabolism. Conversely, interruption of host nucleus-parasite cross talk by infection of enucleated cells generates a host-parasite transcriptional landscape in which cytoplast transcripts are enriched in phagolysosome-related pathway, prosurvival, and SerpinB-mediated immunomodulation. In addition, predictive in silico analyses indicated that parasite transcript products secreted within cytoplasts interact with host transcript products conserving the host V-ATPase proton translocation function and glutamine/proline metabolism. The collective evidence indicates parasite-mediated control of host cell transcripts half-life that is beneficial to parasite intracellular multiplication and escape from host immune responses. These findings will contribute to improved drug targeting and serve as database for L. amazonensis-host cell interactions.
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Low-density lipoprotein modified by myeloperoxidase in inflammatory pathways and clinical studies. Mediators Inflamm 2013; 2013:971579. [PMID: 23983406 PMCID: PMC3742028 DOI: 10.1155/2013/971579] [Citation(s) in RCA: 63] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2013] [Accepted: 06/26/2013] [Indexed: 02/07/2023] Open
Abstract
Oxidation of low-density lipoprotein (LDL) has a key role in atherogenesis. Among the different models of oxidation that have been studied, the one using myeloperoxidase (MPO) is thought to be more physiopathologically relevant. Apolipoprotein B-100 is the unique protein of LDL and is the major target of MPO. Furthermore, MPO rapidly adsorbs at the surface of LDL, promoting oxidation of amino acid residues and formation of oxidized lipoproteins that are commonly named Mox-LDL. The latter is not recognized by the LDL receptor and is accumulated by macrophages. In the context of atherogenesis, Mox-LDL accumulates in macrophages leading to foam cell formation. Furthermore, Mox-LDL seems to have specific effects and triggers inflammation. Indeed, those oxidized lipoproteins activate endothelial cells and monocytes/macrophages and induce proinflammatory molecules such as TNFα and IL-8. Mox-LDL may also inhibit fibrinolysis mediated via endothelial cells and consecutively increase the risk of thrombus formation. Finally, Mox-LDL has been involved in the physiopathology of several diseases linked to atherosclerosis such as kidney failure and consequent hemodialysis therapy, erectile dysfunction, and sleep restriction. All these issues show that the investigations of MPO-dependent LDL oxidation are of importance to better understand the inflammatory context of atherosclerosis.
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Nussbaum C, Klinke A, Adam M, Baldus S, Sperandio M. Myeloperoxidase: a leukocyte-derived protagonist of inflammation and cardiovascular disease. Antioxid Redox Signal 2013; 18:692-713. [PMID: 22823200 DOI: 10.1089/ars.2012.4783] [Citation(s) in RCA: 142] [Impact Index Per Article: 12.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
SIGNIFICANCE The heme-enzyme myeloperoxidase (MPO) is one of the major neutrophil bactericidal proteins and is stored in large amounts inside azurophilic granules of neutrophils. Upon cell activation, MPO is released and extracellular MPO has been detected in a wide range of acute and chronic inflammatory conditions. Recent ADVANCES AND CRITICAL ISSUES: Apart from its role during infection, MPO has emerged as a critical modulator of inflammation throughout the last decade and is currently discussed in the initiation and propagation of cardiovascular diseases. MPO-derived oxidants (e.g., hypochlorous acid) interfere with various cell functions and contribute to tissue injury. Recent data also suggest that MPO itself exerts proinflammatory properties independent of its catalytic activity. Despite advances in unraveling the complex action of MPO and MPO-derived oxidants, further research is warranted to determine the precise nature and biological role of MPO in inflammation. FUTURE DIRECTIONS The identification of MPO as a central player in inflammation renders this enzyme an attractive prognostic biomarker and a potential target for therapeutic interventions. A better understanding of the (patho-) physiology of MPO is essential for the development of successful treatment strategies in acute and chronic inflammatory diseases.
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Affiliation(s)
- Claudia Nussbaum
- Walter Brendel Centre for Experimental Medicine, Ludwig-Maximilians-University Munich, Munich, Germany.
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Cytotoxicity towards human endothelial cells, induced by neutrophil myeloperoxidase: protection by ceftazidime. Mediators Inflamm 2012; 4:437-43. [PMID: 18475677 PMCID: PMC2365676 DOI: 10.1155/s0962935195000706] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
We investigated the effects of the antibiotic ceftazidime (CAZ) on the cytolytic action of the neutrophil myeloperoxidase–hydrogen peroxide–chloride anion system (MPO/H2O2/Cl−). In this system, myeloperoxidase catalyses the conversion of H2O2 and CI− to the cytotoxic agent HOCl. Stimulated neutrophils can release MPO into the extracellular environment and then may cause tissue injury through direct endothelial cells lysis. We showed that human umbilical vein endothelial cells (HUVEC) were capable of taking up active MPO. In presence of H2O2 (10−4 M), this uptake was accompanied by cell lysis. The cytolysis was estimated by the release of 51Cr from HUVEC and expressed as an index of cytotoxicity (IC). Dose dependent protection was obtained for CAZ concentrations ranging from 10−5 to 10−3 M;this can be attributed to inactivation of HOCl by the drug. This protection is comparable to that obtained with methionine and histidine, both of which are known to neutralize HOCl. This protection by CAZ could also be attributed to inactivation of H2O2, but when cytolysis was achieved with H2O2 or
O2- generating enzymatic systems, no protection by CAZ was observed. Moreover, the peroxidation activity of MPO (action on H2O2) was not affected by CAZ, while CAZ prevented the chlorination activity of MPO (chlorination of monochlorodimedon). So, we concluded that CAZ acts via HOCl inactivation. These antioxidant properties of CAZ may be clinically useful in pathological situations where excessive activation of neutrophils occurs, such as in sepsis.
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Rigby KM, DeLeo FR. Neutrophils in innate host defense against Staphylococcus aureus infections. Semin Immunopathol 2011; 34:237-59. [PMID: 22080185 PMCID: PMC3271231 DOI: 10.1007/s00281-011-0295-3] [Citation(s) in RCA: 260] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2011] [Accepted: 10/14/2011] [Indexed: 12/29/2022]
Abstract
Staphylococcus aureus has been an important human pathogen throughout history and is currently a leading cause of bacterial infections worldwide. S. aureus has the unique ability to cause a continuum of diseases, ranging from minor skin infections to fatal necrotizing pneumonia. Moreover, the emergence of highly virulent, drug-resistant strains such as methicillin-resistant S. aureus in both healthcare and community settings is a major therapeutic concern. Neutrophils are the most prominent cellular component of the innate immune system and provide an essential primary defense against bacterial pathogens such as S. aureus. Neutrophils are rapidly recruited to sites of infection where they bind and ingest invading S. aureus, and this process triggers potent oxidative and non-oxidative antimicrobial killing mechanisms that serve to limit pathogen survival and dissemination. S. aureus has evolved numerous mechanisms to evade host defense strategies employed by neutrophils, including the ability to modulate normal neutrophil turnover, a process critical to the resolution of acute inflammation. Here we provide an overview of the role of neutrophils in host defense against bacterial pathogens and discuss strategies employed by S. aureus to circumvent neutrophil function.
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Affiliation(s)
- Kevin M Rigby
- Laboratory of Human Pathogenesis, Rocky Mountain Laboratories, National Institute of Allergy and Infectious Diseases, National Institutes of Health, 903 South 4th Street, Hamilton, MT 59840, USA
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Bylund J, Brown KL, Movitz C, Dahlgren C, Karlsson A. Intracellular generation of superoxide by the phagocyte NADPH oxidase: how, where, and what for? Free Radic Biol Med 2010; 49:1834-45. [PMID: 20870019 DOI: 10.1016/j.freeradbiomed.2010.09.016] [Citation(s) in RCA: 147] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/24/2010] [Revised: 09/14/2010] [Accepted: 09/17/2010] [Indexed: 11/25/2022]
Abstract
Professional phagocytes increase their consumption of molecular oxygen during the phagocytosis of microbes or when encountering a variety of nonparticulate stimuli. In these circumstances, oxygen is reduced by the phagocyte NADPH oxidase, and reactive oxygen species (ROS), which are important for the microbicidal activity of the cells, are generated. The structure and function of the NADPH oxidase have been resolved in part by studying cells from patients with chronic granulomatous disease (CGD), a condition characterized by the inability of phagocytes to assemble a functional NADPH oxidase and thus to produce ROS. As a result, patients with CGD have a predisposition to infections as well as a variety of inflammatory symptoms. A long-standing paradigm has been that NADPH oxidase assembly occurs exclusively in the plasma membrane or invaginations thereof (phagosomes). A growing body of evidence points to the possibility that phagocytes are capable of NADPH oxidase assembly in nonphagosomal intracellular membranes, resulting in ROS generation within intracellular organelles also in the absence of phagocytosis. The exact nature of these ROS-producing organelles is yet to be determined, but granules are prime suspects. Recent clinical findings indicate that the generation of intracellular ROS by NADPH oxidase activation is important for limiting inflammatory reactions and that intracellular and extracellular ROS production are regulated differently. Here we discuss the accumulating knowledge of intracellular ROS production in phagocytes and speculate on the precise role of these oxidants in regulating the inflammatory process.
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Affiliation(s)
- Johan Bylund
- Department of Rheumatology and Inflammation Research, The Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
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Abstract
Polymorphonuclear leukocytes (PMNs) are the most abundant white cell in humans and an essential component of the innate immune system. PMNs are typically the first type of leukocyte recruited to sites of infection or areas of inflammation. Ingestion of microorganisms triggers production of reactive oxygen species and fusion of cytoplasmic granules with forming phagosomes, leading to effective killing of ingested microbes. Phagocytosis of bacteria typically accelerates neutrophil apoptosis, which ultimately promotes the resolution of infection. However, some bacterial pathogens alter PMN apoptosis to survive and thereby cause disease. Herein, we review PMN apoptosis and the ability of microorganisms to alter this important process.
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Affiliation(s)
- Adam D Kennedy
- Laboratory of Human Bacterial Pathogenesis, Rocky Mountain Laboratories, National Institute of Allergy and Infectious Diseases, National Institutes of Health, 903 South 4th Street, Hamilton, MT 59840, USA
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Role of Nox2 in elimination of microorganisms. Semin Immunopathol 2008; 30:237-53. [PMID: 18574584 DOI: 10.1007/s00281-008-0126-3] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2008] [Accepted: 05/23/2008] [Indexed: 12/16/2022]
Abstract
NADPH oxidase of the phagocytic cells (Nox2) transfers electrons from cytosolic NADPH to molecular oxygen in the extracellular or intraphagosomal space. The produced superoxide anion (O*2) provides the source for formation of all toxic oxygen derivatives, but continuous O*2 generation depends on adequate charge compensation. The vital role of Nox2 in efficient elimination of microorganisms is clearly indicated by human pathology as insufficient activity of the enzyme results in severe, recurrent bacterial infections, the typical symptoms of chronic granulomatous disease. The goals of this contribution are to provide critical review of the Nox2-dependent cellular processes that potentially contribute to bacterial killing and degradation and to indicate possible targets of pharmacological interventions.
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Vermeiren GL, Claeys MJ, Van Bockstaele D, Grobben B, Slegers H, Bossaert L, Jorens PG. Reperfusion injury after focal myocardial ischaemia: polymorphonuclear leukocyte activation and its clinical implications. Resuscitation 2000; 45:35-61. [PMID: 10838237 DOI: 10.1016/s0300-9572(00)00168-4] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
The only way to rescue ischaemic tissue is to re-instate the oxygen supply to the tissue. However reperfusion of the ischaemic area not only oxygenates the tissue but also initiates a cascade of processes, which may in some cases result in temporary dysfunction of the myocardium. In order to devise protective measures, it is essential to understand the mechanisms and the triggers of this reperfusion phenomenon. In this review we will mainly focus on the inflammatory response caused by reperfusion. We will cover the different steps of polymorphonuclear leukocyte activation and will briefly discuss the molecular biology of the receptors involved. The currently used pharmacological medications in acute cardiology will be reviewed and in particular their actions on polymorphonuclear leukocyte activation, adhesion and degranulation. This review is a compilation of the current knowledge in the field and the therapeutic progress in the prevention of reperfusion injury made today.
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Affiliation(s)
- G L Vermeiren
- Department of Intensive Care, University Hospital of Antwerp, Belgium
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Deby-Dupont G, Grülke S, Caudron I, Mathy-Hartert M, Benbarek H, Deby C, Lamy M, Serteyn D. Equine neutrophil myeloperoxidase in plasma: design of a radio-immunoassay and first results in septic pathologies. Vet Immunol Immunopathol 1998; 66:257-71. [PMID: 9880103 DOI: 10.1016/s0165-2427(98)00192-5] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
The strangulated intestinal pathologies of horses are accompanied by a local activation of the neutrophils, that can be revealed by measuring the tissular enzymatic activity of the granulocytic enzyme myeloperoxidase (MPO). To estimate the possible spreading of this neutrophil activation to the systemic circulation, we designed a radioimmunoassay (RIA) for equine neutrophil myeloperoxidase (MPO) (EC 1.11.1.7) using a specific rabbit antiserum. MPO was labeled with 1 mCi 125I by a technique of self-labeling in the presence of 10(-4) M hydrogen peroxide. The RIA was performed by incubation of 100 microl diluted antiserum, 100 microl labeled MPO (+/-30,000 cpm) and 100 microl of the reference molecule (unlabeled MPO) solution or the unknown sample, at room temperature for 18 h. The antibody-antigen complexes were isolated by double antibody precipitation. The sensitivity of the RIA was 2 ng/ml. The RIA showed good precision and accuracy with intra- and inter-assay coefficients of variation 6% and 8%, respectively, for MPO concentrations ranging from 2 ng/ml to 60 ng/ml. The best sampling technique for MPO measurement in plasma was to collect blood into EDTA, which allowed us to get a plasmatic value stable with time. The mean MPO value in normal horses was 69.5 +/- 19.4 ng/ml in EDTA anticoagulated plasma (n = 48). The stress of transport and anaesthesia did not modify the mean plasmatic value of MPO. No significant increase of plasma MPO was observed in 17 horses submitted to surgery for pathologies without systemic impact. But, in 25 horses with obstructive intestinal pathologies, persistent abnormal MPO concentrations were measured (until 740 ng/ml).
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Affiliation(s)
- G Deby-Dupont
- Centre for the Biochemistry of Oxygen, Institut de Chimie, and Department of Anaesthesia and Intensive Care Medicine, Centre Hospitalier Universitaire, Université du Sart Tilman, Liege, Belgium.
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Affiliation(s)
- A W Segal
- Department of Medicine, University College London, United Kingdom
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Qian M, Eaton JW, Wolff SP. Cyanate-mediated inhibition of neutrophil myeloperoxidase activity. Biochem J 1997; 326 ( Pt 1):159-66. [PMID: 9337863 PMCID: PMC1218649 DOI: 10.1042/bj3260159] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Cyanate (CNO-) forms spontaneously in solutions containing urea, and is present in urine and the body fluids of uraemic patients. We have explored the possibility that CNO- might be one of the unknown substances responsible for the reported impairment, by urine and uraemic plasma, of neutrophil oxidative metabolism (especially as measured by luminol-enhanced chemiluminescence). Luminol-enhanced chemiluminescence generated by human neutrophils derives predominantly from the activity of myeloperoxidase (MPO) which produces hypochlorous acid from H2O2 and Cl-. We hypothesized that CNO- (which resembles the 'pseudohalide' thiocyanate, an alternative substrate for MPO) might somehow interfere with the activity of MPO. In support of this, we find: (i) CNO- inhibits both peroxidative and halogenating activities of MPO and also inhibits the enzyme within intact human neutrophils; (ii) the inhibition is H2O2-dependent, irreversible, accompanied by covalent addition of [14C]CNO- (or a carbon-containing fragment thereof) to the enzyme; (iii) CNO- also inhibits Cl-/H2O2/MPO-mediated bacterial killing. Impairment of this arm of neutrophil bactericidal activity by CNO- formed from urea may be one factor in the risk of urinary-tract infection associated with urinary stasis and perhaps in the generalized increase in susceptibility to infection in uraemic patients.
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Affiliation(s)
- M Qian
- Department of Physiology and Cell Biology, Albany Medical College, New York, USA
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Abstract
Chronic granulomatous disease (CGD) is characterized by severe, protracted and often fatal infection, which results from a failure of the NADPH oxidase enzyme system in the patient's phagocytes to produce superoxide. The NADPH oxidase enzyme system is composed of a number of interacting components, the absence of any one of which causes failure of the system as a whole. Investigation of individuals with CGD has led to the identification of the different protein components and the genes coding for them. CGD is particularly well suited to treatment by gene therapy and is likely to be one of the earliest monogenic conditions to be successfully treated in this way.
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Affiliation(s)
- A W Segal
- Department of Medicine, University College London, UK.
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Affiliation(s)
- L M Henderson
- Department of Biochemistry, School of Medical Sciences, University of Bristol, UK
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Mathy-Hartert M, Deby-Dupont G, Melin P, Lamy M, Deby C. Bactericidal activity against Pseudomonas aeruginosa is acquired by cultured human monocyte-derived macrophages after uptake of myeloperoxidase. EXPERIENTIA 1996; 52:167-74. [PMID: 8608819 DOI: 10.1007/bf01923364] [Citation(s) in RCA: 23] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Myeloperoxidase (MPO) is an enzyme located within polymorphonuclear neutrophils capable of producing cytotoxic oxidant species that are particularly active against bacteria with polysaccharide capsules. Pseudomonas aeruginosa (10(6) bacteria per 1ml) are killed within 1 h in vitro by a MPO/H2O2/C1- system (48mU=132ng of MPO). The question arose as to whether human macrophages would acquire cytotoxic activity when loaded with this enzyme. Monocytes were therefore isolated from human blood and cultured for up to ten days to induce maturation to macrophages. These cells lost endogenous MPO within five days while H2O2 production in response to stimulation by phorbol myristate acetate (10(-6)M) decreased to 23% within ten days. On the other hand, their capacity to take up exogenous MPO increased fourfold from day three to day ten. Human macrophages cultured from eight days (when both H2O2 production and MPO uptake were sufficient) were therefore used to study the effects of MPO uptake on cytocidal activity against Pseudomonas aeruginosa. After a 1 h MPO loading period, macrophages (5X10(5) cells per ml) were incubated in the presence of bacteria (0.5 to 2X10(6) bacteria per ml) for 2 h at 37 degrees C. At a bacteria/macrophage ratio of 1, only 34.8+/-7.0% of bacteria survived (compared to killing by non-loaded macrophages), while 74.4+/-9.3% survived at a ratio of 4. From these results, we conclude that loading macrophages with exogenous MPO could enhance their microbicidal activity, suggesting a potentially useful therapeutic application.
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Affiliation(s)
- M Mathy-Hartert
- Centre for the Biochemistry of Oxygen, Institut de Chimie B6, Domaine universitaire du Sart Tilman, Liege, Belgium
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Abstract
Phagocytic cells possess an electron-transport system which accepts electrons from NADPH in the cytosol to reduce oxygen to the superoxide radical in the vacuolar lumen. The superoxide is instrumental in killing ingested microorganisms. Patients suffering from chronic granulomatous disease (CGD), in which this system is failing, are abnormally susceptible to infectious diseases. Studying CGD patients' neutrophils has been enormously helpful in identifying the components of the superoxide-generating system, known as the NADPH oxidase. This review will describe the components of the electron-transport chain involved in the oxidase and the factors needed for its regulation.
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Affiliation(s)
- F B Wientjes
- Department of Medicine, University College London, UK
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Casimir C, Chetty M, Bohler MC, Garcia R, Fischer A, Griscelli C, Johnson B, Segal AW. Identification of the defective NADPH-oxidase component in chronic granulomatous disease: a study of 57 European families. Eur J Clin Invest 1992; 22:403-6. [PMID: 1633835 DOI: 10.1111/j.1365-2362.1992.tb01481.x] [Citation(s) in RCA: 29] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Chronic Granulomatous Disease (CGD) manifests as a predisposition to infection as a result of defective function of the NADPH oxidase of phagocytic cells. Proteins identified as part of this system include two subunits of a cytochrome b (cytochrome b-245) and two cytosolic factors. The affected oxidase component was determined in 63 CGD patients from 57 families, by Western blotting of extracts of their neutrophils with antibodies to those proteins. 38 (67%) of the families were X-linked with a defect of the beta subunit of the cytochrome. 13 (23%) lacked p47-phox, 3 (5%) p67-phox, and 3 (5%) the alpha subunit of the cytochrome.
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Affiliation(s)
- C Casimir
- Department of Medicine, University College, Rayne Institute, London, UK
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Segal AW. The electron transport chain of the microbicidal oxidase of phagocytic cells and its involvement in the molecular pathology of chronic granulomatous disease. J Clin Invest 1989; 83:1785-93. [PMID: 2656760 PMCID: PMC303897 DOI: 10.1172/jci114083] [Citation(s) in RCA: 241] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Affiliation(s)
- A W Segal
- Department of Medicine, Faculty of Clinical Science, University College London, United Kingdom
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Affiliation(s)
- A W Segal
- Department of Medicine, Faculty of Clinical Science, University College London, U.K
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