Abstract:
:Nitronyl nitroxides are capable of preventing cells, tissues, and organs from radical-induced damage through scavenging NO˙, ˙O(2)(-) and ˙OH. In order to explore the conversions of nitronyl nitroxides in biological systems with and without NO˙, HPLC-MS aided PC12 cell systems were developed, and the conversions of 2-(3'-nitrophenyl)-4,4,5,5-tetramethylimidazoline-1-oxyl -3-oxide (3-nitro-PTIO), 1-oxyl-2-(3'-nitrophenyl)-4,4,5,5-tetramethylimidazoline (3-nitro-PTI), and 1-hydroxyl-2-(3'-nitrophenyl)-4,4,5,5-tetramethylimidazoline (3-nitro-PTIH) were quantitatively monitored. In these systems 3-nitro-PTIO and 3-nitro-PTI were time-dependently converted to 3-nitro-PTIH, while no conversion of 3-nitro-PTIH was detected. Free radical NO˙ donors (sodium nitroprusside, SNP) accelerated the conversions, but had no effect upon the conversion product. In the in vitro and in vivo assays the 3-nitro-PTIH treated cells and mice exhibited no toxic response.
journal_name
Mol Biosystjournal_title
Molecular bioSystemsauthors
Wang Y,Jiang X,Liu J,Zhao M,Kang G,Wu J,Peng L,Peng Sdoi
10.1039/c1mb05037ksubject
Has Abstractpub_date
2011-05-01 00:00:00pages
1678-83issue
5eissn
1742-206Xissn
1742-2051journal_volume
7pub_type
杂志文章abstract::Protein tyrosine phosphatases are crucial regulators of signal transduction and function as antagonists towards protein tyrosine kinases to control reversible tyrosine phosphorylation, thereby regulating fundamental physiological processes. Growing evidence has supported the notion that reversible oxidative inactivati...
journal_title:Molecular bioSystems
pub_type: 杂志文章
doi:10.1039/c5mb00847f
更新日期:2016-05-24 00:00:00
abstract::Calcium homeostasis is a key factor in the regulation of cardiac excitation-contraction coupling. Calcium dynamics in cardiomyocytes is governed by ATP which depends on insulin dependent glucose concentration, via the glucose transporter type 4 (GLUT4) transporter. It would therefore be interesting to see how calcium ...
journal_title:Molecular bioSystems
pub_type: 杂志文章
doi:10.1039/c7mb00264e
更新日期:2017-09-26 00:00:00
abstract::Fabry disease (FD) is an X-linked lysosomal storage disorder caused by a deficiency of the lysosomal hydrolase α-galactosidase A (α-GalA) that leads to the intra-lysosomal accumulation of globotriaosylceramide (Gb3) in various organ systems. As a consequence, a multisystems disorder develops, culminating in stroke, pr...
journal_title:Molecular bioSystems
pub_type: 杂志文章
doi:10.1039/c4mb00707g
更新日期:2015-06-01 00:00:00
abstract::Infectious diseases caused by bacterial pathogens pose a major concern to public health and, thus, greater attention must be given to providing insightful knowledge on host-pathogen interactions. There are several theories addressing the dynamics of complex mechanisms of host-pathogen interactions. The availability of...
journal_title:Molecular bioSystems
pub_type: 杂志文章,评审
doi:10.1039/c7mb00372b
更新日期:2017-11-21 00:00:00
abstract::Major progress in the study of RNase P has resulted from crystallography of bacterial catalytic subunits and the discovery of catalytic activity in eukaryotes. Several new substrates have also been identified, primarily in bacteria but also in yeast. Our current world should be called the "RNA-protein world" rather th...
journal_title:Molecular bioSystems
pub_type: 杂志文章,评审
doi:10.1039/b707850c
更新日期:2007-09-01 00:00:00
abstract::A new transfection reagent based on nucleoside phosphocholine amphiphile leading to high transfection efficacy and low cytotoxicity is described. TEM, ethidium bromide displacement assays, agarose gel electrophoresis and SAXS studies support the formation of lipoplexes for the transfection of CHO cells. ...
journal_title:Molecular bioSystems
pub_type: 杂志文章
doi:10.1039/b503302k
更新日期:2005-09-01 00:00:00
abstract::The non-classical zinc finger protein, Neural Zinc Finger Factor-1, contains six Cys2His2Cys domains. All three cysteines and the second histidine directly bind Zn(II). Using a combination of mutagenesis, metal coordination and DNA binding studies, we report that the first histidine is involved in a functionally impor...
journal_title:Molecular bioSystems
pub_type: 杂志文章
doi:10.1039/c4mb00246f
更新日期:2014-07-01 00:00:00
abstract::G protein-coupled receptors (GPCRs) are key signaling proteins that regulate how cells interact with their environment. Traditional signaling cascades involving GPCRs have been well described and are well established and very important clinical targets. With the development of more recent technologies, hints about the...
journal_title:Molecular bioSystems
pub_type: 杂志文章,评审
doi:10.1039/c2mb25429h
更新日期:2013-04-05 00:00:00
abstract::TGF-β1, 2 and 3 cytokines are involved in many cellular processes including cell proliferation, differentiation, migration and survival. Whereas TGF-β2 and 3 play important roles in embryonic development, TGF-β1 is mostly implicated in controlling immune responses after birth. The production of TGF-β1 is a tightly reg...
journal_title:Molecular bioSystems
pub_type: 杂志文章,评审
doi:10.1039/c7mb00251c
更新日期:2017-09-26 00:00:00
abstract::Conventional methods for detecting single nucleotide polymorphisms (SNPs), including direct DNA sequencing, pyrosequencing, and melting curve analysis, are to a great extent limited by their requirement for particular detection instruments. To overcome this limitation, we established a novel SNP detection technique ut...
journal_title:Molecular bioSystems
pub_type: 杂志文章
doi:10.1039/b701645j
更新日期:2007-08-01 00:00:00
abstract::The induction of fungal metabolites by fungal co-cultures grown on solid media was explored using multi-well co-cultures in 2 cm diameter Petri dishes. Fungi were grown in 12-well plates to easily and rapidly obtain the large number of replicates necessary for employing metabolomic approaches. Fungal culture using suc...
journal_title:Molecular bioSystems
pub_type: 杂志文章
doi:10.1039/c4mb00223g
更新日期:2014-07-29 00:00:00
abstract::Rule-based modeling provides a means to represent cell signaling systems in a way that captures site-specific details of molecular interactions. For rule-based models to be more widely understood and (re)used, conventions for model visualization and annotation are needed. We have developed the concepts of an extended ...
journal_title:Molecular bioSystems
pub_type: 杂志文章
doi:10.1039/c1mb05077j
更新日期:2011-10-01 00:00:00
abstract::Naphthalene, a polycyclic aromatic hydrocarbon, is a ubiquitous environmental pollutant capable of causing illness. In this study, we deconvoluted the metabolites related to naphthalene intervention in various organs by using nuclear magnetic resonance (NMR) and liquid chromatography-tandem mass spectrometry (LC-MS/MS...
journal_title:Molecular bioSystems
pub_type: 杂志文章
doi:10.1039/c4mb00090k
更新日期:2014-07-01 00:00:00
abstract::Glucocorticoids (GCs) have been proved to be an important pathogenic factor of some neuropsychiatric disorders. Usually, a classical injury model based on corticosterone-induced cytotoxicity of differentiated rat pheochromocytoma (PC12) cells was used to stimulate the state of GC damage of hippocampal neurons and inve...
journal_title:Molecular bioSystems
pub_type: 杂志文章
doi:10.1039/c5mb00642b
更新日期:2016-03-01 00:00:00
abstract::Are protein functions continuous or discretized? Proteomics investigations are starting to address this non-trivial awesome question focusing upon determining the nature of biological molecular relationships. In the following editorial we present a number of experimental studies published in this themed Proteomics Iss...
journal_title:Molecular bioSystems
pub_type: 社论
doi:10.1039/c3mb90013d
更新日期:2013-06-01 00:00:00
abstract::Upon entering biological systems, such as the blood stream, nanoparticles form molecular complexes with the proteins encountered called protein coronas, which shield the surface of the exogenous nanoparticle. The most abundant blood proteins, such as albumin, initially occupy the surface of the nanoparticle. Owing to ...
journal_title:Molecular bioSystems
pub_type: 杂志文章
doi:10.1039/c4mb00591k
更新日期:2015-02-01 00:00:00
abstract::Oxygen dependent modulation of red blood cell metabolism is a long investigated issue. However, the recent introduction of novel mass spectrometry-based approaches lends itself to implement our understanding of the effects of red blood cell prolonged exposure to anaerobiosis. Indeed, most of the studies conducted so f...
journal_title:Molecular bioSystems
pub_type: 杂志文章
doi:10.1039/c3mb25575a
更新日期:2013-06-01 00:00:00
abstract::Epigenetic regulation by histone methylation is crucial for proper programming of the genome during development. Homeostasis of histone methylation is balanced by the activities of histone methyltransferases and demethylases. Although these methyltransferases and demethylases represent logical targets for potential dr...
journal_title:Molecular bioSystems
pub_type: 杂志文章
doi:10.1039/c3mb70413k
更新日期:2014-02-01 00:00:00
abstract::Lung fibrosis is a progressive and often fatal lung disease characterized by fibroblast proliferation and excessive deposition of extracellular matrix in the lungs. The chemokine receptor CXCR7 has been shown to control cell adhesion, migration and proliferation by regulating the epithelial-to-mesenchymal transition (...
journal_title:Molecular bioSystems
pub_type: 杂志文章
doi:10.1039/c7mb00247e
更新日期:2017-09-26 00:00:00
abstract::The emerging field of synthetic biology is generating insatiable demands for synthetic genes, which far exceed existing gene synthesis capabilities. This review discusses the current methods of chemical DNA synthesis and gene assembly, as well as the latest engineering tools, technologies and trends which could potent...
journal_title:Molecular bioSystems
pub_type: 杂志文章,评审
doi:10.1039/b822268c
更新日期:2009-07-01 00:00:00
abstract::The mono-site mutations of the absolutely conserved residues, (464)LGR(466), in the α-helix 5 (h5) of HPV16 L1 completely disrupted the pentamer formation. The implication of this finding is the potential usage of a h5-like peptide as the reagent to interfere with the pentamer formation and stability as an anti-HPV re...
journal_title:Molecular bioSystems
pub_type: 杂志文章
doi:10.1039/c3mb70550a
更新日期:2014-04-01 00:00:00
abstract::Predicting protein subcellular localization is a challenging problem, particularly when query proteins have multi-label features meaning that they may simultaneously exist at, or move between, two or more different subcellular location sites. Most of the existing methods can only be used to deal with the single-label ...
journal_title:Molecular bioSystems
pub_type: 杂志文章
doi:10.1039/c3mb25466f
更新日期:2013-04-05 00:00:00
abstract::To identify an agent with specific activity against human lens epithelial cells (HLECs), we confirmed the presence of glucocorticoid receptors (GRs) and GR-α genes and evaluated whether GRs have a relationship with the apoptotic process in cultured HLECs. We also determined whether the inhibitor RU486 could rescue the...
journal_title:Molecular bioSystems
pub_type: 杂志文章
doi:10.1039/c1mb05045a
更新日期:2011-06-01 00:00:00
abstract::Celastrol, isolated from the traditional Chinese medicinal herb Tripterygium wilfordii Hook. f. (Thunder God's Vine), has been used to treat cancer, chronic inflammatory, autoimmune and other human diseases. However, to date, the protein targets and the mechanism of action of celastrol have remained elusive. In this s...
journal_title:Molecular bioSystems
pub_type: 杂志文章
doi:10.1039/c6mb00691d
更新日期:2016-12-20 00:00:00
abstract::The zebrafish Danio rerio is a model vertebrate organism for understanding biological mechanisms. Recent studies have explored using zebrafish as a model for lipid-related diseases, for in vivo fish bioassays, and for embryonic toxicity experiments. Mass spectrometry (MS) and MS imaging are established tools for lipid...
journal_title:Molecular bioSystems
pub_type: 杂志文章
doi:10.1039/c6mb00168h
更新日期:2016-06-01 00:00:00
abstract::Protein-protein interactions are important biological processes and essential for a global understanding of cell functions. To date, little is known about the protein interactions and roles of the protein interacting networks and protein complexes in bacterial resistance to antibiotics. In the present study, we invest...
journal_title:Molecular bioSystems
pub_type: 杂志文章
doi:10.1039/c2mb25090j
更新日期:2012-09-01 00:00:00
abstract::Despite many prior studies on microbial response to oxidative stress, our understanding of microbial tolerance against oxidative stress is currently limited to aerobic conditions, and few engineering strategies have been devised to resolve toxicity issues of oxidative stress under anaerobic conditions. Since biologica...
journal_title:Molecular bioSystems
pub_type: 杂志文章
doi:10.1039/c2mb25259g
更新日期:2013-02-02 00:00:00
abstract::The recognition and association between the Ca2+/calmodulin-activated protein kinase II-α (CaMKIIα) and the multi-PDZ domain protein 1 (MUPP1) plays an important role in the sperm acrosome reaction and human fertilization. Previously, we have demonstrated that the MUPP1 PDZ11 domain is the primary binding partner of t...
journal_title:Molecular bioSystems
pub_type: 杂志文章
doi:10.1039/c7mb00379j
更新日期:2017-09-26 00:00:00
abstract::Unbalanced uptake of Omega 6/Omega 3 (ω-6/ω-3) ratios could increase chronic disease occurrences, such as inflammation, atherosclerosis, or tumor proliferation, and methylation methods for measuring the ruminal microbiome fatty acid (FA) composition/distribution play a vital role in discovering the contribution of foo...
journal_title:Molecular bioSystems
pub_type: 杂志文章
doi:10.1039/c5mb00325c
更新日期:2015-11-01 00:00:00
abstract::Breast cancer has been reported as one of the most frequently diagnosed malignant diseases and the leading cause of cancer death in women all around the world. Furthermore, this complicated cancer is divided into multiple subtypes which present different clinical symptoms and need correspondingly directed therapy. We ...
journal_title:Molecular bioSystems
pub_type: 杂志文章
doi:10.1039/c6mb00653a
更新日期:2017-05-02 00:00:00