Myeloperoxidase (MPO)

Myeloperoxidase (MPO) is an enzyme most abundantly present in neutrophil granulocytes. It is a lysosomal protein stored in azurophilic granules of the neutrophil. MPO has a heme pigment which causes its green color in secretions rich in neutrophils, such as pus and some forms of mucus. It uses hydrogen peroxidase to convert chloride to hypochlorous acid. The produced hypochlorous acid reacts with and destroys bacteria. In many inflammatory pathologies, such as cystic fibrosis and rheumatoid arthritis, neutrophils are also causing tissue damage. It is also produced when arteries are inflamed and have rupture-prone fatty deposits. An inflammation in the arteries can lead to a blood clot and eventually to a heart attack or stroke.

Swiss-Prot Accession Number: P05164


Myriad RBM Publications Publications
Dendritic cell immunotherapy followed by cART interruption during HIV-1 infection induces plasma protein markers of cellular immunity and neutrophil recruitment (2018) van den Ham HJ, Cooper J, Tomasik J, Bahn S, Aerts J, Oseterhaus A, Gruters R, Andeweg A PLoS One
Proteomic biomarkers of cognitive impairment in obstructive sleep apnea syndrome (2018) Lal C, Hardiman G, Kumbhare S, Strange C Sleep and Breathing
Serum Apolipoprotein E and Other Inflammatory Markers Can Identify Non-Responding Patients to a Dendritic Cell Vaccine (2018) Leeman H, Kaminska E, Green D, Bodman-Smith M, Gravett A, Bodman-Smith K, Copier J, Coulton G, Fusi A, Dalgleish AG Translational Oncology
Protein Biomarker Druggability Profiling (2017) Mani S, Cannon D, Ohls R, Oprea T, Mathias S, Ballard K, Ursu O, Bologa C J Biomed Inform
Standardized whole blood stimulation improves immunomonitoring of induced immune responses in multi-center study (2017) Duffy D, Rouilly V, Braudeau C, Corbière V, Djebali R, Ungeheuer MN, Josien R, LaBrie ST, Lantz O, Louis D, Martinez-Caceres E, Mascart F, Ruiz de Morales JG, Ottone C, Redjah L, Guen N, Savenay A, Schmolz M, Toubert A, Albert ML Clin Immunol
Effects of Acute Endurance Exercise on Plasma Protein Profiles of Endurance-Trained and Untrained Individuals over Time (2016) Schild M, Eichner G, Beiter T, Zuegel M, Niess AM, Steinacker JM, Mooren FC Mediators of Inflammation
Assessment of Urine Proteomics in Type 1 Primary Hyperoxaluria*American Journal of Nephrology (2016) Brooks ER, Hoppe B, Milliner DS, Salido E, Rim J, Krevitt LM, Olson JB, Price HE, Vural G, Langman CB American Journal of Nephrology
Variation in Serum Biomarkers with Sex and Female Hormonal Status: Implications for Clinical Tests (2016) Ramsey JM, Cooper JD, Penninx BWJH, Bahn S Scientific Reports
A phase 2 randomized dose-ranging study of the JAK2-selective inhibitor fedratinib (SAR302503) in patients with myelofibrosis (2015) Pardanani A, Tefferi A, Jamieson C, Gabrail NY, Lebedinsky C, Gao G, Liu F, Xu C, Cao H and Talpaz M Blood Cancer Journal
The application of multiple reaction monitoring and multi-analyte profiling to HDL proteins (2014) Yassine HN, Jackson AM, Borges CR, Billheimer D, Koh H, Smith D, Reaven P, Lau SS, Borchers CH Lipids Health Dis. 2014 Jan 8;13(1):8
Neutrophils release extracellular DNA traps in response to exercise. (2014) Beiter T, Fragasso A, Hudemann J, Schild M, Steinacker J, Mooren FC, Niess AM. Journal of Applied Physiology 2014 Aug 1;117(3):325-33. doi: 10.1152/japplphysiol.00173.2014
Allogeneic mesenchymal stem cell infusion for the stabilization of focal segmental glomerulosclerosis (2013) Belingheri M, Lazzari L, Parazzi V, Groppali E, Biagi E, Gaipa G, Giordano R, Rastaldi MP, Croci D, Biondi A, Rebulla P, Edefonti A, Ghio L Biologicals. 2013 Oct 14. pii: S1045-1056(13)00111-5. doi: 10.1016/j.biologicals.2013.09.004
Identification of a molecular profile associated with immune status in first onset schizophrenia patients (2013) Herberth M, Rahmoune H, Schwarz E, Koethe D, Harris LW, Kranaster L, Witt SH, Spain M, Barnes A, Schmolz M, Leweke MF, Guest PC, Bahn S Clin Schizophr Relat Psychoses
Plasma metabolomics and proteomics profiling after a postprandial challenge reveal subtle diet effects on human metabolic status (2012) Pellis L, van Erk MJ, van Ommen B, Bakker GCM, Hendriks HFJ, Cnubben NHP, Kleemann R, van Someren EP, Bobeldijk I, Rubingh CM, Wopereis S Metabolomics
Systemic Biomarkers of Neutrophilic Inflammation, Tissue Injury and Repair in COPD Patients with Differing Levels of Disease Severity (2012) Cockayne DA, Cheng DT, Waschki B, Sridhar S, Ravindran P, Hilton H, Kourteva G, Bitter H, Pillai SG, Visvanathan S, Müller KC, Holz O, Magnussen H, Watz H, Fine JS PLoS One. 2012;7(6):e38629
Markers of inflammation and bone remodelling associated with improvement in clinical response measures in psoriatic arthritis patients treated with golimumab (2012) Wagner CL, Visvanathan S, Elashoff M, McInnes IB, Mease PJ, Krueger GG, Murphy FT, Papp K, Gomez-Reino JJ, Mack M, Beutler A, Gladman D, Kavanaugh A Ann Rheum Dis. 2012 Sep 12. [Epub ahead of print]
Sublytic Concentrations of Staphylococcus Aureus Panton-Valentine Leukocidin Alter Human Pmn Gene Expression and Enhance Bactericidal Capacity (2012) Graves SF, Kobayashi SD, Braughton KR, Whitney AR, Sturdevant DE, Rasmussen DL, Kirpotina LN, Quinn MT, Deleo FR Journal of Leukocyte Biology
Association of serum markers with improvement in clinical response measures after treatment with golimumab in patients with active rheumatoid arthritis despite receiving methotrexate: results from the GO-FORWARD study (2010) Visvanathan S, Rahman MU, Keystone E, Genovese M, Klareskog L, Hsia E, Mack M, Buchanan J, Elashoff M, Wagner C Arthritis Res Ther. 12:R211
Inflammatory and Hemostatic Response to Cardiopulmonary Bypass in Pediatric Population: Feasibility of Seriological Testing of Multiple Biomarkers (2010) Agirbasli M, Nguyen ML, Win K, Kunselman AR, Clark JB, Myers JL, Undar A Artif Organs. 34: 987-95.
Human cytokine response to Texas crotaline envenomation before and after antivenom administration. (2010) Crocker P, Zad O, Milling T, Maxson T, King B, Whorton E Am J Emerg Med. 28: 871-9.
Multi analyte profiling and variability of inflammatory markers in blood and induced sputum in patients with stable COPD (2010) Aaron SD, Vandemheen KL, Ramsay T, Zhang C, Avnur Z, Nikolcheva T, Quinn A Respir Res. 2010 Apr 22;11:41
Dysregulated macrophage-inflammatory protein-2 expression drives illness in bacterial superinfection of influenza. (2010) Zavitz CC, Bauer CM, Gaschler GJ, Fraser KM, Strieter RM, Hogaboam CM, Stampfli MR J Immunol 184: 2001-2013.
Lack of a major role of Staphylococcus aureus Panton-Valentine leukocidin in lower respiratory tract infection in nonhuman primates. (2010) Olsen RJ, Kobayashi SD, Ayeras AA, Ashraf M, Graves SF, Ragasa W, Humbird T, Greaver JL, Cantu C, Swain JL, Jenkins L, Blasdel T, Cagle PT, Gardner DJ, DeLeo FR, Musser JM Am J Pathol 176: 1346-1354.
Molecular Analyte Profiling of the Early Events and Tissue Conditioning Following Intravesical Bacillus Calmette-Guerin Therapy in Patients With Superficial Bladder Cancer. (2009) Bisiaux A, Thiounn N, Timsit MO, Eladaoui A, Chang HH, Mapes J, Mogenet A, Bresson JL, Prié D, Béchet S, Baron C, Sadorge C, Thomas S, Albert EB, Albert PS, Albert ML J Urol 181: 1571-1580.