Reactive oxygen species and neutrophil function

CC Winterbourn, AJ Kettle… - Annual review of …, 2016 - annualreviews.org
Neutrophils are essential for killing bacteria and other microorganisms, and they also have a
significant role in regulating the inflammatory response. Stimulated neutrophils activate their …

Reactions and reactivity of myeloperoxidase-derived oxidants: differential biological effects of hypochlorous and hypothiocyanous acids

DI Pattison, MJ Davies, CL Hawkins - Free radical research, 2012 - Taylor & Francis
Myeloperoxidase (MPO) is recognised to play important roles both in the immune system
and during the development of numerous human pathologies. MPO is released by activated …

Neutrophil-vascular interactions drive myeloperoxidase accumulation in the brain in Alzheimer's disease

LCD Smyth, HC Murray, M Hill, E van Leeuwen… - Acta neuropathologica …, 2022 - Springer
Introduction Neutrophil accumulation is a well-established feature of Alzheimer's disease
(AD) and has been linked to cognitive impairment by modulating disease-relevant …

Thiocyanate: a potentially useful therapeutic agent with host defense and antioxidant properties

JD Chandler, BJ Day - Biochemical pharmacology, 2012 - Elsevier
Thiocyanate (SCN) functions in host defense as part of the secreted lactoperoxidase (LPO)
microbicidal pathway. SCN is the preferred substrate for LPO-driven catalytic reduction of …

Myeloperoxidase: A versatile mediator of endothelial dysfunction and therapeutic target during cardiovascular disease

SL Maiocchi, J Ku, T Thai, E Chan, MD Rees… - Pharmacology & …, 2021 - Elsevier
Myeloperoxidase (MPO) is a prominent mammalian heme peroxidase and a fundamental
component of the innate immune response against microbial pathogens. In recent times …

Comparative reactivity of myeloperoxidase-derived oxidants with mammalian cells

BS Rayner, DT Love, CL Hawkins - Free Radical Biology and Medicine, 2014 - Elsevier
Myeloperoxidase is an important heme enzyme released by activated leukocytes that
catalyzes the reaction of hydrogen peroxide with halide and pseudo-halide ions to form …

Glutathione utilization protects Streptococcus pneumoniae against lactoperoxidase-derived hypothiocyanous acid

HL Shearer, JC Paton, MB Hampton… - Free Radical Biology and …, 2022 - Elsevier
Streptococcus pneumoniae is the leading cause of community-acquired pneumonia,
resulting in more than one million deaths each year worldwide. This pathogen generates …

Biochemical mechanisms and therapeutic potential of pseudohalide thiocyanate in human health

JD Chandler, BJ Day - Free radical research, 2015 - Taylor & Francis
Thiocyanate (SCN−) is a ubiquitous molecule in mammalian biology, reaching up to mM
concentrations in extracellular fluids. Two-electron oxidation of SCN− by H2O2 produces …

Hypothiocyanous acid: benign or deadly?

TJ Barrett, CL Hawkins - Chemical research in toxicology, 2012 - ACS Publications
Hypothiocyanous acid (HOSCN) is produced in biological systems by the peroxidase-
catalyzed reaction of thiocyanate (SCN–) with H2O2. This oxidant plays an important role in …

Resistance of Streptococcus pneumoniae to hypothiocyanous acid generated by host peroxidases

HL Shearer, CD Kaldor, H Hua, AJ Kettle… - Infection and …, 2022 - Am Soc Microbiol
Streptococcus pneumoniae is a serious human respiratory pathogen. It generates hydrogen
peroxide (H2O2) as part of its normal metabolism, yet it lacks enzymes that remove this …