Abstract:
:Nox family NADPH oxidases serve a variety of functions requiring reactive oxygen species (ROS) generation, including antimicrobial defense, biosynthetic processes, oxygen sensing, and redox-based cellular signaling. We explored targeting, assembly, and activation of several Nox family oxidases, since ROS production appears to be regulated both spatially and temporally. Nox1 and Nox3 are similar to the phagocytic (Nox2-based) oxidase, functioning as multicomponent superoxide-generating enzymes. Factors regulating their activities include cytosolic activator and organizer proteins and GTP-Rac. Their regulation varies, with the following rank order: Nox2 > Nox1 > Nox3. Determinants of subcellular targeting include: (a) formation of Nox-p22(phox) heterodimeric complexes allowing plasma membrane translocation, (b) phospholipids-binding specificities of PX domain-containing organizer proteins (p47(phox) or Nox organizer 1 (Noxo1 and p40(phox)), and (c) variably splicing of Noxo1 PX domains directing them to nuclear or plasma membranes. Dual oxidases (Duox1 and Duox2) are targeted by different mechanisms. Plasma membrane targeting results in H(2)O(2) release, not superoxide, to support extracellular peroxidases. Human Duox1 and Duox2 have no demonstrable peroxidase activity, despite their extensive homology with heme peroxidases. The dual oxidases were reconstituted by Duox activator 2 (Duoxa2) or two Duoxa1 variants, which dictate maturation, subcellular localization, and the type of ROS generated by forming stable complexes with Duox.
journal_name
Antioxid Redox Signaljournal_title
Antioxidants & redox signalingauthors
Leto TL,Morand S,Hurt D,Ueyama Tdoi
10.1089/ars.2009.2637subject
Has Abstractpub_date
2009-10-01 00:00:00pages
2607-19issue
10eissn
1523-0864issn
1557-7716journal_volume
11pub_type
杂志文章,评审abstract:AIMS:Cyclic adenosine 3'5'-monophosphate (cAMP) is a universal second messenger that plays an important role in intracellular signal transduction. cAMP is synthesized by adenylate cyclases from adenosine triphosphate and terminated by the phosphodiesterases (PDEs). In the present study, we investigated the role of the ...
journal_title:Antioxidants & redox signaling
pub_type: 杂志文章
doi:10.1089/ars.2017.7041
更新日期:2018-09-01 00:00:00
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journal_title:Antioxidants & redox signaling
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doi:10.1089/ars.2009.2996
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journal_title:Antioxidants & redox signaling
pub_type: 杂志文章,评审
doi:10.1089/ars.2008.2034
更新日期:2008-12-01 00:00:00
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journal_title:Antioxidants & redox signaling
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doi:10.1089/152308602760598873
更新日期:2002-10-01 00:00:00
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journal_title:Antioxidants & redox signaling
pub_type: 杂志文章,评审
doi:10.1089/ars.2013.5782
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journal_title:Antioxidants & redox signaling
pub_type: 杂志文章
doi:10.1089/ars.2006.8.671
更新日期:2006-03-01 00:00:00
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journal_title:Antioxidants & redox signaling
pub_type: 信件
doi:10.1089/152308604771978390
更新日期:2004-02-01 00:00:00
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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
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journal_title:Antioxidants & redox signaling
pub_type: 杂志文章
doi:10.1089/ars.2012.4873
更新日期:2013-06-20 00:00:00
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journal_title:Antioxidants & redox signaling
pub_type: 杂志文章,评审
doi:10.1089/ars.2009.2790
更新日期:2010-04-01 00:00:00
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journal_title:Antioxidants & redox signaling
pub_type: 杂志文章
doi:10.1089/ars.2009.2614
更新日期:2009-07-01 00:00:00
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journal_title:Antioxidants & redox signaling
pub_type: 杂志文章
doi:10.1089/ars.2009.2946
更新日期:2011-03-01 00:00:00
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journal_title:Antioxidants & redox signaling
pub_type: 社论
doi:10.1089/ars.2011.4424
更新日期:2012-02-15 00:00:00
abstract:SIGNIFICANCE:Stiffness of endothelial cells is closely linked to the function of the vasculature as it regulates the release of vasoactive substances such as nitric oxide (NO) and reactive oxygen species. The outer layer of endothelial cells, consisting of the glycocalyx above and the cortical zone beneath the plasma m...
journal_title:Antioxidants & redox signaling
pub_type: 杂志文章,评审
doi:10.1089/ars.2017.7327
更新日期:2019-03-01 00:00:00
abstract:AIM:To evaluate the role of matrix metalloproteinase (MMP)-9 deletion on citrate synthase (CS) activity postmyocardial infarction (MI). RESULTS:We fractionated left ventricle (LV) samples using a differential solubility-based approach. The insoluble protein fraction was analyzed by mass spectrometry, and we identified...
journal_title:Antioxidants & redox signaling
pub_type: 杂志文章
doi:10.1089/ars.2013.5411
更新日期:2014-11-10 00:00:00
abstract::Efficient functioning of maintenance and repair processes seems to be crucial for both survival and physical quality of life. This is accomplished by a complex network of the so-called longevity assurance processes, which are composed of several genes termed "vitagenes," among these, the heat shock system, a highly co...
journal_title:Antioxidants & redox signaling
pub_type: 杂志文章,评审
doi:10.1089/ars.2004.6.895
更新日期:2004-10-01 00:00:00
abstract:: Significance: Hypertension is characterized as the imbalance of vasoconstriction and vasodilatation. Hypertension is influenced by genetic variation and environmental risk factors, such as unhealthy diet. Clinical trial results suggest that increasing intake of foods rich ...
journal_title:Antioxidants & redox signaling
pub_type: 杂志文章
doi:10.1089/ars.2020.8108
更新日期:2020-06-12 00:00:00
abstract::Sirtuin-1 (SIRT1) is an NAD(+)-dependent protein deacetylase that is sensitive to oxidative signals. Our purpose was to determine whether SIRT1 activity is sensitive to the low molecular weight nitrosothiol, S-nitrosoglutathione (GSNO), which can transduce oxidative signals into physiological responses. SIRT1 formed m...
journal_title:Antioxidants & redox signaling
pub_type: 杂志文章
doi:10.1089/ars.2010.3251
更新日期:2010-10-01 00:00:00
abstract::The endothelium is essential for the maintenance of vascular homeostasis. Central to this role is the production of endothelium-derived nitric oxide (EDNO), synthesized by the endothelial isoform of nitric oxide synthase (eNOS). Endothelial dysfunction, manifested as impaired EDNO bioactivity, is an important early ev...
journal_title:Antioxidants & redox signaling
pub_type: 杂志文章,评审
doi:10.1089/ars.2008.2027
更新日期:2008-10-01 00:00:00
abstract:SIGNIFICANCE:Ionizing radiation is a vital component in the oncologist's arsenal for the treatment of cancer. Approximately 50% of all cancer patients will receive some form of radiation therapy as part of their treatment regimen. DNA is considered the major cellular target of ionizing radiation and can be damaged dire...
journal_title:Antioxidants & redox signaling
pub_type: 杂志文章,评审
doi:10.1089/ars.2012.5000
更新日期:2014-04-01 00:00:00
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journal_title:Antioxidants & redox signaling
pub_type: 杂志文章
doi:10.1089/ars.2010.3877
更新日期:2011-10-15 00:00:00
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journal_title:Antioxidants & redox signaling
pub_type: 杂志文章
doi:10.1089/ars.2012.5026
更新日期:2013-04-10 00:00:00
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journal_title:Antioxidants & redox signaling
pub_type: 信件
doi:10.1089/1523086041361631
更新日期:2004-08-01 00:00:00
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journal_title:Antioxidants & redox signaling
pub_type: 杂志文章
doi:10.1089/ars.2012.4830
更新日期:2013-08-01 00:00:00
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journal_title:Antioxidants & redox signaling
pub_type: 杂志文章
doi:10.1089/ars.2010.3511
更新日期:2011-06-15 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: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::The dual or biphasic responses of cancer to nitric oxide (NO) arise from its concentration dependent ability to regulate tumor growth, migration, invasion, survival, angiogenesis, and metastasis. The outcome of these various NO-dependent processes is dictated by several factors including NO flux, the chemical redox en...
journal_title:Antioxidants & redox signaling
pub_type: 杂志文章,评审
doi:10.1089/ars.2006.8.1329
更新日期:2006-07-01 00:00:00
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journal_title:Antioxidants & redox signaling
pub_type: 杂志文章
doi:10.1089/ars.2015.6423
更新日期:2015-10-10 00:00:00
abstract::Glutathione peroxidases and thioredoxin reductases are the main selenoproteins expressed by endothelial cells. These enzymes reduce hydroperoxides, their role in endothelial cell physiology, however, by far exceeds prevention of oxidative damage. Reactive oxygen and nitrogen species, especially superoxide, hydroperoxi...
journal_title:Antioxidants & redox signaling
pub_type: 杂志文章,评审
doi:10.1089/152308603764816569
更新日期:2003-04-01 00:00:00