1
|
Franck T, Ceusters J, Graide H, Mouithys-Mickalad A, Serteyn D. Muscle Derived Mesenchymal Stem Cells Inhibit the Activity of the Free and the Neutrophil Extracellular Trap (NET)-Bond Myeloperoxidase. Cells 2021; 10:3486. [PMID: 34943996 PMCID: PMC8700239 DOI: 10.3390/cells10123486] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2021] [Revised: 11/21/2021] [Accepted: 12/07/2021] [Indexed: 12/17/2022] Open
Abstract
Mesenchymal stem cells (MSCs) are known to migrate to tissue injury sites to participate in immune modulation, tissue remodelling and wound healing, reducing tissue damage. Upon neutrophil activation, there is a release of myeloperoxidase (MPO), an oxidant enzyme. But little is known about the direct role of MSCs on MPO activity. The aim of this study was to investigate the effect of equine mesenchymal stem cells derived from muscle microinvasive biopsy (mdMSC) on the oxidant response of neutrophils and particularly on the activity of the myeloperoxidase released by stimulated equine neutrophils. After specific treatment (trypsin and washings in phosphate buffer saline), the mdMSCs were exposed to isolated neutrophils. The effect of the suspended mdMSCs was studied on the ROS production and the release of total and active MPO by stimulated neutrophils and specifically on the activity of MPO in a neutrophil-free model. Additionally, we developed a model combining adherent mdMSCs with neutrophils to study total and active MPO from the neutrophil extracellular trap (NET). Our results show that mdMSCs inhibited the ROS production, the activity of MPO released by stimulated neutrophils and the activity of MPO bound to the NET. Moreover, the co-incubation of mdMSCs directly with MPO results in a strong inhibition of the peroxidase activity of MPO, probably by affecting the active site of the enzyme. We confirm the strong potential of mdMSCs to lower the oxidant response of neutrophils. The novelty of our study is an evident inhibition of the activity of MPO by MSCs. The results indicated a new potential therapeutic approach of mdMSCs in the inhibition of MPO, which is considered as a pro-oxidant actor in numerous chronic and acute inflammatory pathologies.
Collapse
Affiliation(s)
- Thierry Franck
- Centre of Oxygen Research and Development (CORD), University of Liege, 4000 Liege, Belgium; (J.C.); (H.G.); (A.M.-M.); (D.S.)
- Research Unit FARAH, Department of Clinical Sciences, Faculty of Veterinary Medicine, University of Liege, 4000 Liege, Belgium
| | - Justine Ceusters
- Centre of Oxygen Research and Development (CORD), University of Liege, 4000 Liege, Belgium; (J.C.); (H.G.); (A.M.-M.); (D.S.)
- Research Unit FARAH, Department of Clinical Sciences, Faculty of Veterinary Medicine, University of Liege, 4000 Liege, Belgium
| | - Hélène Graide
- Centre of Oxygen Research and Development (CORD), University of Liege, 4000 Liege, Belgium; (J.C.); (H.G.); (A.M.-M.); (D.S.)
| | - Ange Mouithys-Mickalad
- Centre of Oxygen Research and Development (CORD), University of Liege, 4000 Liege, Belgium; (J.C.); (H.G.); (A.M.-M.); (D.S.)
| | - Didier Serteyn
- Centre of Oxygen Research and Development (CORD), University of Liege, 4000 Liege, Belgium; (J.C.); (H.G.); (A.M.-M.); (D.S.)
- Research Unit FARAH, Department of Clinical Sciences, Faculty of Veterinary Medicine, University of Liege, 4000 Liege, Belgium
| |
Collapse
|
2
|
Almutairi A, Zaman F, Day-Lewis M, Tsitsikov E, Reiter A, Xue K, Geha RS, Chou J, Yee CSK. Acetaminophen Inhibits the Neutrophil Oxidative Burst: Implications for Diagnostic Testing. THE JOURNAL OF ALLERGY AND CLINICAL IMMUNOLOGY-IN PRACTICE 2020; 8:3543-3548. [PMID: 32707237 DOI: 10.1016/j.jaip.2020.07.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Revised: 07/01/2020] [Accepted: 07/06/2020] [Indexed: 10/23/2022]
Abstract
BACKGROUND Chronic granulomatous disease is a primary immunodeficiency characterized by recurrent bacterial and fungal infections, granuloma formation, and inflammatory disease. Impaired neutrophil oxidative function is an essential diagnostic criterion. In vitro exposure of neutrophils to acetaminophen, a commonly used over-the-counter medication, has been associated with reduced neutrophil oxidative function. The clinical implications of acetaminophen intake for dihydrorhodamine (DHR) testing remain unknown. OBJECTIVE To evaluate the effect of in vivo administration of therapeutic doses of acetaminophen on DHR diagnostic testing. METHODS We performed DHR testing in 15 healthy adults before and after administering a single dose of acetaminophen. We retrospectively reviewed 195 DHR test results from hospitalized patients who had received acetaminophen, nonsteroidal anti-inflammatory drug, or corticosteroid before testing. RESULTS DHR testing result was abnormal in 100% (n = 15) of healthy adults 2 hours after acetaminophen intake. We identified 195 instances of DHR testing less than or equal to 72 hours after acetaminophen ingestion in hospitalized patients who did not have chronic granulomatous disease. DHR results were abnormal in 43 of 195 cases (22.1%). Frequency of false-positive testing was increased in patients who received acetaminophen within 24 hours of testing, and in patients who received more than 1 dose of acetaminophen. Nonsteroidal anti-inflammatory drug and corticosteroid intakes were not associated with abnormal DHR result. CONCLUSIONS Patients treated with acetaminophen have decreased neutrophil oxidative burst as measured by DHR testing. To avoid falsely abnormal testing for chronic granulomatous disease, patients should be advised to avoid acetaminophen for at least 24 hours before DHR testing.
Collapse
Affiliation(s)
| | - Fatima Zaman
- Boston Children's Hospital, Boston, Mass; Harvard Medical School, Boston, Mass
| | | | | | | | - Kanyun Xue
- Boston Children's Hospital, Boston, Mass
| | - Raif S Geha
- Boston Children's Hospital, Boston, Mass; Harvard Medical School, Boston, Mass
| | - Janet Chou
- Boston Children's Hospital, Boston, Mass; Harvard Medical School, Boston, Mass
| | - Christina S K Yee
- Boston Children's Hospital, Boston, Mass; Harvard Medical School, Boston, Mass.
| |
Collapse
|
3
|
Tsuzuki N, Kanbayashi Y, Kusano K. Markers for oxidative stress in the synovial fluid of Thoroughbred horses with carpal bone fracture. J Equine Sci 2019; 30:13-16. [PMID: 30944542 PMCID: PMC6445753 DOI: 10.1294/jes.30.13] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2018] [Accepted: 11/26/2018] [Indexed: 11/23/2022] Open
Abstract
Arthritis is thought to cause oxidative stress in synovial fluid in humans, but there
have been few reports in horses. To evaluate oxidative stress in synovial fluid in horses,
this study used 19 horses with unilateral fracture of the carpal joint bone. Synovial
fluid was collected from the carpal joint on the fracture (arthritis group) and
contralateral (control group) sides. Diacron-reactive oxygen metabolites (d-ROMs) and
biological antioxidant potential (BAP) were then measured, and the oxidative stress index
(OSI) was calculated. d-ROMs and OSI of the arthritis group were significantly higher than
the control group. BAP of the arthritis group was significantly lower than the control
group. Thus, this study revealed that oxidative stress develops in the synovial fluid of
horses during arthritis.
Collapse
Affiliation(s)
- Nao Tsuzuki
- Obihiro University of Agriculture and Veterinary Medicine, Hokkaido 080-8555, Japan
| | - Yoshinori Kanbayashi
- Racehorse Hospital, Miho Training Center, Japan Racing Association, Ibaraki 300-0493, Japan
| | - Kanichi Kusano
- Racehorse Hospital, Miho Training Center, Japan Racing Association, Ibaraki 300-0493, Japan
| |
Collapse
|
4
|
|
5
|
Khan AA, Alsahli MA, Rahmani AH. Myeloperoxidase as an Active Disease Biomarker: Recent Biochemical and Pathological Perspectives. Med Sci (Basel) 2018; 6:medsci6020033. [PMID: 29669993 PMCID: PMC6024665 DOI: 10.3390/medsci6020033] [Citation(s) in RCA: 140] [Impact Index Per Article: 23.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2018] [Revised: 04/04/2018] [Accepted: 04/11/2018] [Indexed: 12/15/2022] Open
Abstract
Myeloperoxidase (MPO) belongs to the family of heme-containing peroxidases, produced mostly from polymorphonuclear neutrophils. The active enzyme (150 kDa) is the product of the MPO gene located on long arm of chromosome 17. The primary gene product undergoes several modifications, such as the removal of introns and signal peptides, and leads to the formation of enzymatically inactive glycosylated apoproMPO which complexes with chaperons, producing inactive proMPO by the insertion of a heme moiety. The active enzyme is a homodimer of heavy and light chain protomers. This enzyme is released into the extracellular fluid after oxidative stress and different inflammatory responses. Myeloperoxidase is the only type of peroxidase that uses H₂O₂ to oxidize several halides and pseudohalides to form different hypohalous acids. So, the antibacterial activities of MPO involve the production of reactive oxygen and reactive nitrogen species. Controlled MPO release at the site of infection is of prime importance for its efficient activities. Any uncontrolled degranulation exaggerates the inflammation and can also lead to tissue damage even in absence of inflammation. Several types of tissue injuries and the pathogenesis of several other major chronic diseases such as rheumatoid arthritis, cardiovascular diseases, liver diseases, diabetes, and cancer have been reported to be linked with MPO-derived oxidants. Thus, the enhanced level of MPO activity is one of the best diagnostic tools of inflammatory and oxidative stress biomarkers among these commonly-occurring diseases.
Collapse
Affiliation(s)
- Amjad A Khan
- Department of Medical Laboratories, College of Applied Medical Sciences, Qassim University, AlQassim, P.O. Box 6699, Buraidah 51452, Saudi Arabia.
| | - Mohammed A Alsahli
- Department of Medical Laboratories, College of Applied Medical Sciences, Qassim University, AlQassim, P.O. Box 6699, Buraidah 51452, Saudi Arabia.
| | - Arshad H Rahmani
- Department of Medical Laboratories, College of Applied Medical Sciences, Qassim University, AlQassim, P.O. Box 6699, Buraidah 51452, Saudi Arabia.
| |
Collapse
|
6
|
Anderson SL, Singh B. Equine neutrophils and their role in ischemia reperfusion injury and lung inflammation. Cell Tissue Res 2018; 371:639-648. [PMID: 29335779 DOI: 10.1007/s00441-017-2770-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2017] [Accepted: 12/07/2017] [Indexed: 01/06/2023]
Abstract
Horses are susceptible to a multitude of inflammatory conditions that are characterized by a strong neutrophilic response. Here, we review basic equine neutrophil biology and explore the role of neutrophils in inflammatory conditions with emphasis on intestinal ischemia and reperfusion injury and lung inflammation. In addition, unique aspects of equine neutrophil biology have been highlighted. Neutrophils comprise the highest proportion of circulating white blood cells in equine blood. The concentration of circulating equine neutrophils is a primary indicator of systemic inflammation. Additionally, equine neutrophils exposed to various stimulants develop "toxic" changes characterized as cytoplasmic basophilia, presence of Döhle bodies, cytoplasmic vacuolation and toxic granulation. In contrast to human neutrophils, equine neutrophils fail to undergo chemotaxis in response to the peptide N-formyl-methionyl-leucyl-phenylalanine and are dependent on the addition of arachidonic acid due to reduced activity of phospholipase A2 to synthesize leukotrienes as part of the arachidonic acid pathway. Understanding the biologic function of neutrophils in horses is integral to developing methods to modulate inflammation associated with ischemia reperfusion injury and lung disease.
Collapse
Affiliation(s)
- Stacy L Anderson
- College of Veterinary Medicine, Lincoln Memorial University, 6965 Cumberland Gap Parkway, Harrogate, TN, 37752, USA.
| | - Baljit Singh
- College of Veterinary Medicine, University of Calgary, Calgary, Alberta, T2N 4Z6, Canada
| |
Collapse
|
7
|
Zholobenko A, Mouithys-Mickalad A, Modriansky M, Serteyn D, Franck T. Polyphenols from Silybum marianum inhibit in vitro the oxidant response of equine neutrophils and myeloperoxidase activity. J Vet Pharmacol Ther 2016; 39:592-601. [PMID: 27213823 DOI: 10.1111/jvp.12319] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2015] [Accepted: 04/05/2016] [Indexed: 11/30/2022]
Abstract
A recent study showed that silymarin, a standardized extract of S. marianum might be used in the prevention of equine laminitis. We investigated the effects of quercetin and some compounds found in silymarin (silybin, taxifolin and dehydrosilybin) on reactive oxygen species (ROS) production and myeloperoxidase (MPO) release by stimulated equine neutrophils (PMNs) and on MPO activity. All compounds (tested between 100 nm and 100 μm) inhibited superoxide anion production by stimulated PMNs in a dose-dependent manner. Dehydrosilybin and quercetin inhibited superoxide production and MPO release from 10 μm. Classical MPO assay showed quercetin as the most potent inhibitor, followed by taxifolin, dehydrosilybin and silybin. SIEFED MPO assay highlighting the binding of tested compounds to MPO showed that only quercetin and taxifolin maintained an efficient inhibition above 90% at 10 μm. Altogether, our results showed a strong inhibition of PMN activation by planar compounds such as quercetin and dehydrosilybin and a strong inhibition of MPO activity by the smallest molecules, quercetin and taxifolin. In conclusion, the compounds from silymarin may be useful for modulating the oxidative response of PMNs, involved in the pathogenesis of laminitis, but further in vivo studies are needed.
Collapse
Affiliation(s)
- A Zholobenko
- Department of Medical Chemistry & Biochemistry, Faculty of Medicine and Dentistry, Palacky University, Olomouc, Czech Republic
| | - A Mouithys-Mickalad
- Centre for Oxygen, R&D (CORD), Institut de Chimie, Université de Liège, Liège, Belgium
| | - M Modriansky
- Department of Medical Chemistry & Biochemistry, Faculty of Medicine and Dentistry, Palacky University, Olomouc, Czech Republic
| | - D Serteyn
- Centre for Oxygen, R&D (CORD), Institut de Chimie, Université de Liège, Liège, Belgium
- Faculty of Veterinary Medicine, Université de Liège, Liège, Belgium
| | - T Franck
- Centre for Oxygen, R&D (CORD), Institut de Chimie, Université de Liège, Liège, Belgium.
- Faculty of Veterinary Medicine, Université de Liège, Liège, Belgium.
| |
Collapse
|
8
|
Salciccia A, Grulke S, de la Rebière de Pouyade G, Franck T, Detilleux J, Serteyn D, Sandersen C. Assessment of systemic inflammation by time-trends of blood granulocyte count and plasma myeloperoxidase and elastase concentrations following colic surgery in horses. J Vet Emerg Crit Care (San Antonio) 2016; 26:541-8. [PMID: 27147114 DOI: 10.1111/vec.12481] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2014] [Revised: 11/08/2014] [Accepted: 11/29/2014] [Indexed: 11/28/2022]
Abstract
OBJECTIVE To determine changes in blood granulocyte counts and in plasma myeloperoxidase (MPO) and elastase (ELT) concentrations in surgical colic cases, and to determine the relationship between these changes and the surgical procedure performed, occurrence of postoperative ileus, and final outcome. DESIGN Prospective clinical study conducted over a 12-month period. SETTING University teaching hospital. ANIMALS Fifty-three horses undergoing emergency laparotomy and surviving at least 12 hours postoperatively. INTERVENTIONS Blood samples were taken before surgery, during surgery, at the recovery from anesthesia, and then serially until the 150th hour after the first blood sampling. Granulocyte counts were performed by an automated cell hematology analyzer. Specific ELISAs were performed for the MPO and ELT measurements. Mixed models were used to compare the time-trends of the 3 parameters. MEASUREMENTS AND MAIN RESULTS Taking all horses together, the time-trends of MPO and ELT were not significantly different from each other, but they were significantly different from the granulocyte time-trend. The type of surgical procedure did not influence the time-trends of the 3 parameters. Significant changes in the granulocyte time-trends were associated with postoperative ileus and outcome. Significant changes in the MPO time-trends were associated with outcome. The ELT time-trends were not influenced by ileus or outcome. CONCLUSIONS Granulocyte counts and MPO change over time and are related to the severity of the inflammatory reaction in surgical colic cases. These time-trends may allow evaluation of treatment efficacy in an effort to modulate excessive granulocyte activation and degranulation.
Collapse
Affiliation(s)
- Alexandra Salciccia
- Faculty of Veterinary Medicine, Department of Companion Animals and Horses, University of Liège, Liège, 4000, Belgium.,the Center for Oxygen Research and Development, University of Liège, Liège, 4000, Belgium
| | - Sigrid Grulke
- Faculty of Veterinary Medicine, Department of Companion Animals and Horses, University of Liège, Liège, 4000, Belgium.,the Center for Oxygen Research and Development, University of Liège, Liège, 4000, Belgium
| | - Geoffroy de la Rebière de Pouyade
- Faculty of Veterinary Medicine, Department of Companion Animals and Horses, University of Liège, Liège, 4000, Belgium.,the Center for Oxygen Research and Development, University of Liège, Liège, 4000, Belgium
| | - Thierry Franck
- the Center for Oxygen Research and Development, University of Liège, Liège, 4000, Belgium
| | - Johann Detilleux
- the Faculty of Veterinary Medicine, Quantitative Genetics, University of Liège, Liège, 4000, Belgium
| | - Didier Serteyn
- Faculty of Veterinary Medicine, Department of Companion Animals and Horses, University of Liège, Liège, 4000, Belgium.,the Center for Oxygen Research and Development, University of Liège, Liège, 4000, Belgium
| | - Charlotte Sandersen
- Faculty of Veterinary Medicine, Department of Companion Animals and Horses, University of Liège, Liège, 4000, Belgium.,the Center for Oxygen Research and Development, University of Liège, Liège, 4000, Belgium
| |
Collapse
|
9
|
Differentiation between stoichiometric and anticatalytic antioxidant properties of benzoic acid analogues: A structure/redox potential relationship study. Chem Biol Interact 2013; 206:194-203. [DOI: 10.1016/j.cbi.2013.09.009] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2013] [Revised: 06/17/2013] [Accepted: 09/11/2013] [Indexed: 01/09/2023]
|
10
|
Cywinska A, Szarska E, Degorski A, Guzera M, Gorecka R, Strzelec K, Kowalik S, Schollenberger A, Winnicka A. Blood phagocyte activity after race training sessions in Thoroughbred and Arabian horses. Res Vet Sci 2013; 95:459-64. [DOI: 10.1016/j.rvsc.2013.04.020] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2012] [Revised: 03/27/2013] [Accepted: 04/14/2013] [Indexed: 10/26/2022]
|
11
|
Alshetaiwi HS, Balivada S, Shrestha TB, Pyle M, Basel MT, Bossmann SH, Troyer DL. Luminol-based bioluminescence imaging of mouse mammary tumors. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2013; 127:223-8. [PMID: 24077442 DOI: 10.1016/j.jphotobiol.2013.08.017] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/21/2013] [Revised: 08/26/2013] [Accepted: 08/28/2013] [Indexed: 12/17/2022]
Abstract
Polymorphonuclear neutrophils (PMNs) are the most abundant circulating blood leukocytes. They are part of the innate immune system and provide a first line of defense by migrating toward areas of inflammation in response to chemical signals released from the site. Some solid tumors, such as breast cancer, also cause recruitment and activation of PMNs and release of myeloperoxidase. In this study, we demonstrate that administration of luminol to mice that have been transplanted with 4T1 mammary tumor cells permits the detection of myeloperoxidase activity, and consequently, the location of the tumor. Luminol allowed detection of activated PMNs only two days after cancer cell transplantation, even though tumors were not yet palpable. In conclusion, luminol-bioluminescence imaging (BLI) can provide a pathway towards detection of solid tumors at an early stage in preclinical tumor models.
Collapse
Affiliation(s)
- Hamad S Alshetaiwi
- Department of Anatomy and Physiology, 228 Coles Hall, Kansas State University, Manhattan, KS 66506, USA.
| | | | | | | | | | | | | |
Collapse
|
12
|
Minguet G, de la Rebière G, Franck T, Joris J, Serteyn D, Sandersen C. Sevoflurane inhibits equine myeloperoxidase release and activity in vitro. Vet Anaesth Analg 2013; 40:166-75. [DOI: 10.1111/j.1467-2995.2012.00786.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
|
13
|
Derochette S, Franck T, Mouithys-Mickalad A, Deby-Dupont G, Neven P, Serteyn D. Intra- and extracellular antioxidant capacities of the new water-soluble form of curcumin (NDS27) on stimulated neutrophils and HL-60 cells. Chem Biol Interact 2013; 201:49-57. [PMID: 23291280 DOI: 10.1016/j.cbi.2012.12.010] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2012] [Revised: 11/19/2012] [Accepted: 12/26/2012] [Indexed: 12/14/2022]
Abstract
Phagocytic cells, especially neutrophils (PMNs) are specialized in the production of reactive oxygen species (ROS) to kill pathogenic agents, but an excessive ROS production is associated with tissue damages and inflammatory diseases. Phagocytes are thus prime therapeutic targets to control inflammatory events associated to ROS production. Nowadays, there is a growing interest for the use of polyphenols to modulate the inflammatory response. The aim of this work was to study the antioxidant effect of NDS27, a highly water-soluble form of the polyphenolic molecule curcumin, on in vitro stimulated equine PMNs and human promyelocytic leukemia cells (HL-60). NDS27 was either pre-incubated with cells and eliminated before their activation (intracellular effect) or let in the medium (extracellular effect). Our results indicate that NDS27 significantly and dose-dependently (10(-6) M-10(-4) M) inhibited the ROS production in both cell types without affecting their viability. NDS27 was able to cross and interact with cell membrane, especially for HL-60 cells, while we observed a better intracellular antioxidant effect with PMNs. The activity of myeloperoxidase (MPO) released by PMNs and HL-60 cells, was decreased by NDS27, but more efficiently for PMNs. These results suggested that the greater efficiency of NDS27 in PMNs is due to an inhibitory effect on cells which are more mature for ROS production, probably by targeting the enzymes implied in respiratory burst like MPO. The modulatory effect of NDS27 on the oxidant activity of cells involved in immune and inflammatory responses opens perspectives for a therapeutic control of pathologies with excessive inflammatory reactions.
Collapse
Affiliation(s)
- Sandrine Derochette
- Centre for Oxygen, R&D (CORD), Institute of Chemistry, B6a, University of Liège, Allée de la Chimie 3, B-4000 Liège, Belgium.
| | | | | | | | | | | |
Collapse
|
14
|
Ceusters JD, Serteyn DA, Minguet G, de la Rebière de Pouyade G, Romainville J, Deby-Dupont GP, Mouithys-Mickalad AA, Franck TJ. An in vitro whole blood model to test the effects of different stimuli conditions on the release of myeloperoxidase and elastase by equine neutrophils. Vet Immunol Immunopathol 2012; 150:221-7. [DOI: 10.1016/j.vetimm.2012.09.008] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2012] [Revised: 07/11/2012] [Accepted: 09/17/2012] [Indexed: 11/30/2022]
|
15
|
Flemmig J, Zschaler J, Remmler J, Arnhold J. The fluorescein-derived dye aminophenyl fluorescein is a suitable tool to detect hypobromous acid (HOBr)-producing activity in eosinophils. J Biol Chem 2012; 287:27913-23. [PMID: 22718769 PMCID: PMC3431693 DOI: 10.1074/jbc.m112.364299] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2012] [Revised: 06/18/2012] [Indexed: 12/22/2022] Open
Abstract
The specific detection of peroxidase activity in human granulocytes is essential to elucidate their role in innate immune responses, immune regulation, and inflammatory diseases. The halogenating activity of myeloperoxidase in neutrophils can be determined by the novel fluorescent probe aminophenyl fluorescein (APF). Thereby non-fluorescent APF is oxidized by HOCl to form fluorescein. We successfully verified that APF equally detects the hypobromous acid (HOBr)-producing activity of eosinophil granulocytes. This was revealed by three different approaches. First, we investigated the conversion of non-fluorescent APF into fluorescein by HOCl and HOBr by means of fluorescence and mass spectrometry approaches. Thereby comparable chemical mechanisms were observed for both acids. Furthermore in vitro kinetic studies were used to detect the halogenating activity of myeloperoxidase and eosinophil peroxidase by using APF. Here the dye well reflected the different substrate specificities of myeloperoxidase and eosinophil peroxidase regarding chloride and bromide. Finally, peroxidase activities were successfully detected in phorbol ester-stimulated neutrophils and eosinophils using flow cytometry. Thereby inhibitory studies confirmed the peroxidase-dependent oxidation of APF. To sum up, APF is a promising tool for further evaluation of the halogenating activity of peroxidases in both neutrophils and eosinophils.
Collapse
Affiliation(s)
- Jörg Flemmig
- Institute for Medical Physics and Biophysics, Medical Faculty, University of Leipzig, Härtelstrasse 16-18, 04107 Leipzig, Germany.
| | | | | | | |
Collapse
|
16
|
Bordin AI, Liu M, Nerren JR, Buntain SL, Brake CN, Kogut MH, Cohen ND. Neutrophil function of neonatal foals is enhanced in vitro by CpG oligodeoxynucleotide stimulation. Vet Immunol Immunopathol 2011; 145:290-7. [PMID: 22197007 DOI: 10.1016/j.vetimm.2011.11.012] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2011] [Revised: 11/16/2011] [Accepted: 11/17/2011] [Indexed: 11/29/2022]
Abstract
Rhodococcus equi is an intracellular bacterium that causes pneumonia in foals and immunocompromised adult horses. Evidence exists that foals become infected with R. equi early in life, a period when innate immune responses are critically important for protection against infection. Neutrophils are innate immune cells that play a key role in defense against this bacterium. Enhancing neutrophil function during early life could thus help to protect foals against R. equi infection. The objective of our study was to determine whether in vitro incubation with the TLR9 agonist CpG 2142 would enhance degranulation and gene expression of cytokines and Toll-like receptor 9 (TLR9) by neutrophils collected from foals at 2, 14, and 56 days of life, and to determine whether these stimulated responses varied among ages. Neutrophil degranulation was enhanced at all ages by in vitro stimulation with either CpG alone, R. equi alone, or in combination with either R. equi or N-formyl-methionyl-leucyl-phenylalanine (fMLP) (P<0.05), but not by in vitro stimulation with fMLP alone. There were no significant differences among ages in CpG-induced cytokine expression, except for IL-12p40, which was induced more at 56 days of age than on days 2 or 14. Collapsing data across ages, CpG 2142 significantly (P<0.05) increased IL-6 and IL-17 mRNA expression. We concluded that in vitro stimulation of foal neutrophils with CpG enhances their function by promoting degranulation and inducing mRNA expression of IL-6 and IL-17, regardless of age.
Collapse
Affiliation(s)
- Angela I Bordin
- Department of Large Animal Clinical Sciences, College of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, TX 77843-4475, USA
| | | | | | | | | | | | | |
Collapse
|
17
|
The role of activated neutrophils in the early stage of equine laminitis. Vet J 2011; 189:27-33. [DOI: 10.1016/j.tvjl.2010.06.008] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2009] [Revised: 06/03/2010] [Accepted: 06/11/2010] [Indexed: 12/26/2022]
|
18
|
Hurley DJ, Hurley KAE, Galland KL, Baker B, Berghaus LJ, Moore JN, Majerle RSK. Evaluation of the ability of aqueous black walnut extracts to induce the production of reactive oxygen species. Am J Vet Res 2011; 72:308-17. [DOI: 10.2460/ajvr.72.3.308] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
|
19
|
Sandersen C, Mouithys-Mickalad A, de la Rebière G, Deby G, Serteyn D, Franck T. Modulating effects of acepromazine on the reactive oxygen species production by stimulated equine neutrophils. Vet Anaesth Analg 2011; 38:83-93. [DOI: 10.1111/j.1467-2995.2010.00583.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
20
|
LEJEUNE JP, SANDERSEN C, VOTION D, CAUDRON I, VANDER HEYDEN L, FRANCK T, CEUSTERS J, MOUITHYS-MICKALAD A, NIESTEN A, De La REBIÈRE de POUYADE G, SERTEYN D. Effect of intensive exercise on plasmatic neutrophil elastase level in eventing and endurance horses. Equine Vet J 2010:12-6. [DOI: 10.1111/j.2042-3306.2010.00242.x] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
21
|
Pickles KJ, Brooks AC, Rickards KJ, Cunningham FM. Expression of annexin-1 in equine leucocytes and the effects of the N-terminal annexin-1 peptide, Ac2-26, on equine neutrophil superoxide production. Vet Immunol Immunopathol 2010; 135:226-33. [DOI: 10.1016/j.vetimm.2009.12.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2009] [Revised: 12/01/2009] [Accepted: 12/07/2009] [Indexed: 11/24/2022]
|