Abstract:
:Neutrophils have a short half-life and high tendency to undergo apoptosis. One feature that may influence these characteristics is the antioxidant/oxidant balance of these cells. There are few studies on the levels of antioxidant enzymes in human neutrophils. We have analyzed by immunohistochemistry of paraffin-embedded cells and from cytospin preparations the most important antioxidant proteins in human neutrophils, and compared their levels with those in blood monocytes. Neutrophils showed moderate to high catalase, weak to moderate extracellular superoxide dismutase, and weak copper zinc superoxide dismutase and gamma-glutamylcysteine synthetase immunoreactivities. There were no detectable levels of manganese superoxide dismutase, thioredoxin, and heme oxygenase 1. Some differences were observed between the samples prepared by embedding in paraffin or by cytospin. These results, in combination with a recent study from this laboratory, suggest that a prominent feature in neutrophils is their high catalase activity but lower level of glutathione-dependent antioxidant enzymes. The differences in antioxidant profiles in neutrophils and monocytes may have important effects on the life span of human neutrophils, in both healthy and diseased tissues.
journal_name
Antioxid Redox Signaljournal_title
Antioxidants & redox signalingauthors
Kinnula VL,Soini Y,Kvist-Mäkelä K,Savolainen ER,Koistinen Pdoi
10.1089/152308602753625825keywords:
subject
Has Abstractpub_date
2002-02-01 00:00:00pages
27-34issue
1eissn
1523-0864issn
1557-7716journal_volume
4pub_type
杂志文章abstract:AIMS:Abnormal accumulation of α-synuclein aggregates is one of the key pathological features of many neurodegenerative movement disorders and dementias. These pathological aggregates propagate into larger brain regions as the disease progresses, with the associated clinical symptoms becoming increasingly severe and com...
journal_title:Antioxidants & redox signaling
pub_type: 杂志文章
doi:10.1089/ars.2011.4429
更新日期:2013-03-01 00:00:00
abstract::Protection of ischemic myocardium is an important unmet need in reperfusion therapy of acute myocardial infarction. Myocardial ischemia and reperfusion induce necrosis and apoptosis in cardiomyocytes. Caspase processing and activation are critical steps in most receptor and nonreceptor pathways of apoptosis. Caspase i...
journal_title:Antioxidants & redox signaling
pub_type: 杂志文章
doi:10.1089/152308601750100605
更新日期:2001-02-01 00:00:00
abstract::Clinical heart failure has been defined for a long time as a clinical syndrome with symptoms and signs including shortness of breath, cyanosis, ascites, and edema. However, in recent years, with the thought of promoting early diagnosis and heart-failure prevention, the concept of heart failure has often been defined s...
journal_title:Antioxidants & redox signaling
pub_type: 杂志文章,评审
doi:10.1089/ars.2009.2488
更新日期:2009-08-01 00:00:00
abstract::Epithelial to mesenchymal transition (EMT) is a fundamental process, paradigmatic of the concept of cell plasticity, that leads epithelial cells to lose their polarization and specialized junctional structures, to undergo cytoskeleton reorganization, and to acquire morphological and functional features of mesenchymal-...
journal_title:Antioxidants & redox signaling
pub_type: 杂志文章,评审
doi:10.1089/ars.2009.2737
更新日期:2010-06-15 00:00:00
abstract:SIGNIFICANCE:Therapeutic hypothermia is commonly applied to limit ischemic injury in organ transplantation, during cardiac and brain surgery and after cardiopulmonary resuscitation. In these procedures, the kidneys are particularly at risk for ischemia/reperfusion injury (IRI), likely due to their high rate of metaboli...
journal_title:Antioxidants & redox signaling
pub_type: 杂志文章,评审
doi:10.1089/ars.2016.6705
更新日期:2017-09-20 00:00:00
abstract::The DNA base excision-repair pathway is responsible for the repair of DNA damage caused by oxidation/alkylation and protects cells against the effects of endogenous and exogenous agents. Removal of the damaged base creates a baseless (AP) site. AP endonuclease1 (Ape1) acts on this site to continue the BER-pathway repa...
journal_title:Antioxidants & redox signaling
pub_type: 杂志文章
doi:10.1089/ars.2008.2120
更新日期:2008-11-01 00:00:00
abstract::Parkinson's disease is characterized by a progressive loss of dopaminergic neurons in the substantia nigra zona compacta, and in other subcortical nuclei associated with a widespread occurrence of Lewy bodies. The causes of cell death in Parkinson's disease are still poorly understood, but a defect in mitochondrial ox...
journal_title:Antioxidants & redox signaling
pub_type: 杂志文章
doi:10.1089/152308603322110832
更新日期:2003-06-01 00:00:00
abstract::Fluid shear stress is intimately linked with vascular oxidative stress and atherosclerosis. We posited that atherogenic oscillatory shear stress (OSS) induced mitochondrial superoxide (mtO2•-) production via NADPH oxidase and c-Jun NH(2)-terminal kinase (JNK-1 and JNK-2) signaling. In bovine aortic endothelial cells, ...
journal_title:Antioxidants & redox signaling
pub_type: 杂志文章
doi:10.1089/ars.2010.3645
更新日期:2011-09-01 00:00:00
abstract::Hyperglycemia-induced overproduction of superoxide by mitochondrial electron-transport chain triggers several pathways of injury involved in the pathogenesis of diabetic complications [protein kinase C (PKC), hexosamine and polyol pathway fluxes, advanced glycation end product (AGE) formation] by inhibiting glyceralde...
journal_title:Antioxidants & redox signaling
pub_type: 杂志文章,评审
doi:10.1089/ars.2005.7.1568
更新日期:2005-11-01 00:00:00
abstract:AIMS:Glutathione peroxidase (GPX) mimic ebselen and superoxide dismutase (SOD) mimic copper diisopropylsalicylate (CuDIPs) were used to rescue impaired glucose-stimulated insulin secretion (GSIS) in islets of GPX1 and(or) SOD1-knockout mice. RESULTS:Ebselen improved GSIS in islets of all four tested genotypes. The res...
journal_title:Antioxidants & redox signaling
pub_type: 杂志文章
doi:10.1089/ars.2013.5361
更新日期:2014-01-10 00:00:00
abstract:AIMS:Excitotoxicity triggered by extrasynaptic N-methyl-d-aspartate-type glutamate receptors has been implicated in many neurodegenerative conditions, including Alzheimer's disease, Huntington's disease, amyotrophic lateral sclerosis, and stroke. Mitochondrial calcium overload leading to mitochondrial dysfunction repre...
journal_title:Antioxidants & redox signaling
pub_type: 杂志文章
doi:10.1089/ars.2017.7092
更新日期:2018-10-20 00:00:00
abstract:: Significance: Unique to the branched-chain aminotransferase (BCAT) proteins is their redox-active CXXC motif. Subjected to post-translational modification by reactive oxygen species and reactive nitrogen species, these proteins have the potential to adopt numerous cellular...
journal_title:Antioxidants & redox signaling
pub_type: 杂志文章
doi:10.1089/ars.2020.8118
更新日期:2020-08-03 00:00:00
abstract:SIGNIFICANCE:Evidence is emerging that parenteral administration of high-dose vitamin C may warrant development as an adjuvant therapy for patients with sepsis. RECENT ADVANCES:Sepsis increases risk of death and disability, but its treatment consists only of supportive therapies because no specific therapy is availabl...
journal_title:Antioxidants & redox signaling
pub_type: 杂志文章,评审
doi:10.1089/ars.2013.5401
更新日期:2013-12-10 00:00:00
abstract:SIGNIFICANCE:Lysosomes are organelles in which cellular degradation occurs in a controlled manner, separated from other cellular components. As several pathways terminate in the lysosome, lysosomal dysfunction has a profound impact on cell homeostasis, resulting in manifold pathological situations, including infectious...
journal_title:Antioxidants & redox signaling
pub_type: 杂志文章,评审
doi:10.1089/ars.2011.4405
更新日期:2012-09-01 00:00:00
abstract:AIMS:Aberrant Cdk5 (cyclin-dependent kinase 5) and oxidative stress are crucial components of diverse neurodegenerative disorders, including Alzheimer's disease (AD). We previously reported that a change in peroxiredoxin (Prx) expression is associated with protection from neuronal death. The aim of the current study wa...
journal_title:Antioxidants & redox signaling
pub_type: 杂志文章
doi:10.1089/ars.2016.6810
更新日期:2017-10-10 00:00:00
abstract::Gamma-interferon-inducible lysosomal thiol reductase (GILT) is constitutively expressed in most antigen presenting cells and is interferon γ inducible in other cell types via signal transducer and activator of transcription 1. Normally, N- and C-terminal propeptides are cleaved in the early endosome, and the mature pr...
journal_title:Antioxidants & redox signaling
pub_type: 杂志文章,评审
doi:10.1089/ars.2010.3684
更新日期:2011-08-01 00:00:00
abstract::Hyperhomocysteinemia is a risk factor for cardiovascular disease, stroke, and thrombosis. Several animal models of hyperhomocysteinemia have been developed by using both dietary and genetic approaches. These animal models have provided considerable insight into the mechanisms underlying the adverse vascular effects of...
journal_title:Antioxidants & redox signaling
pub_type: 杂志文章,评审
doi:10.1089/ars.2007.1806
更新日期:2007-11-01 00:00:00
abstract::Nitrite, previously considered physiologically irrelevant and a simple end product of endogenous nitric oxide (NO) metabolism, is now envisaged as a reservoir of NO to be activated in response to oxygen (O(2)) depletion. In the first part of this review, we summarize and compare the mechanisms of nitrite-dependent pro...
journal_title:Antioxidants & redox signaling
pub_type: 杂志文章,评审
doi:10.1089/ars.2011.4196
更新日期:2012-08-15 00:00:00
abstract::Secretory and transmembrane proteins are correctly folded or processed in the endoplasmic reticulum (ER). Various stresses disturb ER function and provoke the accumulation of unfolded proteins in the ER lumen. This condition is termed ER stress. Recently, ER stress has been linked to neuronal death in various neurodeg...
journal_title:Antioxidants & redox signaling
pub_type: 杂志文章,评审
doi:10.1089/ars.2006.1520
更新日期:2007-05-01 00:00:00
abstract:SIGNIFICANCE:Cystic fibrosis (CF) is the most common lethal genetic disorder in the Caucasian people. It is due to the mutation of cystic fibrosis transmembrane conductance regulator (CFTR) gene located on the long arm of the chromosome 7, which encodes for CFTR protein. The latter, an adenosine triphosphate binding ca...
journal_title:Antioxidants & redox signaling
pub_type: 杂志文章,评审
doi:10.1089/ars.2014.6012
更新日期:2015-03-01 00:00:00
abstract::This brief review first touches on the origins of the earth's oxygen. It then identifies and locates the principal oxygen sensor in vertebrates, the carotid body (CB). The CB is unique in that in human subjects, it is the only sensor of lower than normal levels in the partial pressure of oxygen (hypoxia, HH). Another ...
journal_title:Antioxidants & redox signaling
pub_type: 杂志文章
doi:10.1089/ars.2007.1546
更新日期:2007-06-01 00:00:00
abstract:AIM:Antrodia Camphorate (AC) is a mushroom that is widely used in Asian countries to prevent and treat various diseases, including liver diseases. However, the active ingredients that contribute to the biological functions remain elusive. The purpose of the present study is to test the hepatoprotective effect of Antcin...
journal_title:Antioxidants & redox signaling
pub_type: 杂志文章
doi:10.1089/ars.2016.6833
更新日期:2017-02-10 00:00:00
abstract::Cellular compartments differ dramatically in their redox potentials. This translates directly into variations in the extent of disulfide bond formation within proteins, depending on their cellular localization. It has long been assumed that proteins that are present in the reducing environment of the cytosol do not po...
journal_title:Antioxidants & redox signaling
pub_type: 杂志文章,评审
doi:10.1089/152308603768295168
更新日期:2003-08-01 00:00:00
abstract::Parkinson's disease (PD) is the second most common neurodegenerative disease characterized by selective loss of dopaminergic neurons and the presence of Lewy bodies. The pathogenesis of PD remains incompletely understood. Environmental factors, oxidative damage, misfolded protein aggregates, ubiquitin-proteasome syste...
journal_title:Antioxidants & redox signaling
pub_type: 杂志文章,评审
doi:10.1089/ars.2006.1524
更新日期:2007-05-01 00:00:00
abstract:: Significance: Humans cannot synthesize ascorbic acid (AscH2) (vitamin C), so deficiencies in dietary AscH2 cause the life-threatening disease of scurvy and many other diseases. After oral ingestion, plasma AscH2 concentrations are strictly controlled by transporters, which...
journal_title:Antioxidants & redox signaling
pub_type: 杂志文章
doi:10.1089/ars.2019.7912
更新日期:2020-01-22 00:00:00
abstract::Reactive oxygen species (ROS) have multifaceted roles in the orchestration of plant gene expression and gene-product regulation. Cellular redox homeostasis is considered to be an "integrator" of information from metabolism and the environment controlling plant growth and acclimation responses, as well as cell suicide ...
journal_title:Antioxidants & redox signaling
pub_type: 杂志文章,评审
doi:10.1089/ars.2008.2177
更新日期:2009-04-01 00:00:00
abstract::Increased oxidative stress and impaired heat shock protein (HSP) synthesis may contribute to diabetic nephropathy. The question of whether 8-week thiol antioxidant alpha-lipoic acid (LA) supplementation modulates HSP response and oxidative stress was studied in the kidney of streptozotocin-induced diabetic (SID) and n...
journal_title:Antioxidants & redox signaling
pub_type: 杂志文章
doi:10.1089/ars.2006.1450
更新日期:2007-04-01 00:00:00
abstract:SIGNIFICANCE:Mitochondria are complex dynamic organelles pivotal for cellular physiology and human health. Failure to maintain mitochondrial health leads to numerous maladies that include late-onset neurodegenerative diseases and cardiovascular disorders. Furthermore, a decline in mitochondrial health is prevalent with...
journal_title:Antioxidants & redox signaling
pub_type: 杂志文章,评审
doi:10.1089/ars.2014.6199
更新日期:2015-04-20 00:00:00
abstract:: Significance: Since the discovery of vascular stem cells, there has been considerable advancement in comprehending the nature and functions of these cells. Due to their differentiation potential to repair endothelial cells and to participate in lesion formation during vasc...
journal_title:Antioxidants & redox signaling
pub_type: 杂志文章
doi:10.1089/ars.2020.8199
更新日期:2021-01-19 00:00:00
abstract::Mitochondrial ferritin (MtFt) is a newly identified H-ferritin-like protein expressed only in mitochondria. Previous studies have shown that its overexpression markedly affects intracellular iron homeostasis and rescues defects caused by frataxin deficiency. To assess how MtFt exerts its function under oxidative stres...
journal_title:Antioxidants & redox signaling
pub_type: 杂志文章
doi:10.1089/ars.2008.2306
更新日期:2009-08-01 00:00:00