Abstract：
:Arctic ground squirrels provide a unique model to investigate metabolic responses to hibernation in mammals. During winter months these rodents are exposed to severe hypothermia, prolonged fasting, and hypoxemia. In the light of their role in oxygen transport/off-loading and owing to the absence of nuclei and organelles (and thus de novo protein synthesis capacity), mature red blood cells have evolved metabolic programs to counteract physiological or pathological hypoxemia. However, red blood cell metabolism in hibernation has not yet been investigated. Here we employed targeted and untargeted metabolomics approaches to investigate erythrocyte metabolism during entrance to torpor to arousal, with a high resolution of the intermediate time points. We report that torpor and arousal promote metabolism through glycolysis and pentose phosphate pathway, respectively, consistent with previous models of oxygen-dependent metabolic modulation in mature erythrocytes. Erythrocytes from hibernating squirrels showed up to 100-fold lower levels of biomarkers of reperfusion injury, such as the pro-inflammatory dicarboxylate succinate. Altered tryptophan metabolism during torpor was here correlated to the accumulation of potentially neurotoxic catabolites kynurenine, quinolinate, and picolinate. Arousal was accompanied by alterations of sulfur metabolism, including sudden spikes in a metabolite putatively identified as thiorphan (level 1 confidence)-a potent inhibitor of several metalloproteases that play a crucial role in nociception and inflammatory complication to reperfusion secondary to ischemia or hemorrhage. Preliminary studies in rats showed that intravenous injection of thiorphan prior to resuscitation mitigates metabolic and cytokine markers of reperfusion injury, etiological contributors to inflammatory complications after shock.
journal_name
J Proteome Resjournal_title
Journal of proteome researchauthors
Gehrke S,Rice S,Stefanoni D,Wilkerson RB,Nemkov T,Reisz JA,Hansen KC,Lucas A,Cabrales P,Drew K,D'Alessandro Adoi
10.1021/acs.jproteome.9b00018subject
Has Abstractpub_date
2019-04-05 00:00:00pages
1827-1841issue
4eissn
1535-3893issn
1535-3907journal_volume
18pub_type
杂志文章abstract：:Glycoproteins are potentially important biomarkers of disease and therapeutic targets. In particular, the N-linked glycoproteins are a focus of interest as they can be found in the extracellular environment and body fluids. In this study, we have sampled the tears, the extracellular fluid of the epithelial cells cover...
journal_title：Journal of proteome research
pub_type： 杂志文章
doi：10.1021/pr800962q
更新日期：2009-04-01 00:00:00
abstract：:One of the ultimate goals of systems biology research is to obtain a comprehensive understanding of the control mechanisms of complex cellular metabolisms. Metabolic Flux Analysis (MFA) is a important method for the quantitative estimation of intracellular metabolic flows through metabolic pathways and the elucidation...
journal_title：Journal of proteome research
pub_type： 杂志文章
doi：10.1021/pr2002885
更新日期：2011-08-05 00:00:00
abstract：:A robust method has been developed that allows analysis of both N- and O-linked oligosaccharides released from glycoproteins separated using 2D-PAGE and then electroblotted to PVDF membrane. This analysis provides efficient oligosaccharide profiling applicable to glycoproteomic analysis. The method involves the enzyma...
journal_title：Journal of proteome research
pub_type： 杂志文章
doi：10.1021/pr025538d
更新日期：2002-11-01 00:00:00
abstract：:Populations around the world are aging rapidly. Age-related loss of physiological functions negatively affects quality of life. A major contributor to the frailty syndrome of aging is loss of skeletal muscle. In this study we assessed the skeletal muscle biopsy metabolome of healthy young, healthy older and frail olde...
journal_title：Journal of proteome research
pub_type： 杂志文章
doi：10.1021/acs.jproteome.5b00840
更新日期：2016-02-05 00:00:00
abstract：:To decrease the mortality of lung cancer, better screening and diagnostic tools as well as treatment options are needed. Protein glycosylation is one of the major post-translational modifications that is altered in cancer, but it is not exactly clear which glycan structures are affected. A better understanding of the ...
journal_title：Journal of proteome research
pub_type： 杂志文章
doi：10.1021/acs.jproteome.5b00255
更新日期：2015-11-06 00:00:00
abstract：:T lymphocytes mediate cellular and humoral defense against foreign bodies or autoantigens. An understanding of T-cell information processing furthers studies of the immunological response. We describe a large-scale phosphorylation analysis of primary T cells using a multidimensional separation strategy, involving prep...
journal_title：Journal of proteome research
pub_type： 杂志文章
doi：10.1021/pr800500r
更新日期：2008-12-01 00:00:00
abstract：:Pancreatic cancer is a devastating disease and early diagnosis and treatment are essential to improve the prognosis. We previously showed that α-fibrinogen containing hydroxylated proline residues at positions 530 and 565 is increased in plasma of pancreatic cancer patients. However, no antibody specific for hydroxyla...
journal_title：Journal of proteome research
pub_type： 杂志文章
doi：10.1021/pr3008144
更新日期：2013-02-01 00:00:00
abstract：:Antibiotic-induced microbial perturbations alter host metabolism and affect host physiology. In this study, we aimed to investigate the effects of vancomycin (Vanc) and ciprofloxacin/metronidazole (CiMe) exposures on the gut microbiome and metabolome in the colonic content and tissue samples from advanced-stage type 1...
journal_title：Journal of proteome research
pub_type： 杂志文章
doi：10.1021/acs.jproteome.9b00402
更新日期：2019-11-01 00:00:00
abstract：:Protein interaction networks display approximate scale-free topology, in which hub proteins that interact with a large number of other proteins determine the overall organization of the network. In this study, we aim to determine whether hubs are distinguishable from other networked proteins by specific sequence featu...
journal_title：Journal of proteome research
pub_type： 杂志文章
doi：10.1021/pr060171o
更新日期：2006-11-01 00:00:00
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journal_title：Journal of proteome research
pub_type： 杂志文章
doi：10.1021/pr100029f
更新日期：2010-07-02 00:00:00
abstract：:Various biological activities of immunoglobulin G (IgG) including antibody-dependent cellular cytotoxicity (ADCC) are modulated by the structural features of the N-glycans in the Fc part. In this study, we describe a population of IgG1 alloantibodies which are formed during pregnancy against human platelet antigens (H...
journal_title：Journal of proteome research
pub_type： 杂志文章
doi：10.1021/pr800651j
更新日期：2009-02-01 00:00:00
abstract：:To identify proteins that are involved in the molecular mechanisms of oxygen-induced retinopathy (OIR), a well-established model of blinding ischemic retinopathy, we quantitatively analyzed the retinal proteome in a mouse model of OIR. OIR was induced by exposing C57BL/6 mice on postnatal day 7 (P7) to 75% hyperoxia f...
journal_title：Journal of proteome research
pub_type： 杂志文章
doi：10.1021/pr300389r
更新日期：2012-11-02 00:00:00
abstract：:Quantitative proteomics experiments, using for instance isobaric tandem mass tagging approaches, are conducive to measuring changes in protein abundance over multiple time points in response to one or more conditions or stimulations. The aim is often to determine which proteins exhibit similar patterns within and acro...
journal_title：Journal of proteome research
pub_type： 杂志文章
doi：10.1021/acs.jproteome.8b00615
更新日期：2019-02-01 00:00:00
abstract：:A synthetic coumarin, N,N,N-triethyl-11-(4-methyl-2-oxo-2H-chromen-7-yloxy)-11-oxoundecan-1-aminium bromide (SCD-1), having potent activity against pathogenic Aspergilli (MIC90 15.62 μg/mL), was investigated to identify its molecular targets in the pathogen. The proteome of Aspergillus fumigatus was developed after tr...
journal_title：Journal of proteome research
pub_type： 杂志文章
doi：10.1021/pr300006j
更新日期：2012-06-01 00:00:00
abstract：:The complete and specific proteolytic cleavage of protein samples into peptides is crucial for the success of every shotgun LC-MS/MS experiment. In particular, popular peptide-based label-free and targeted mass spectrometry approaches rely on efficient generation of fully cleaved peptides to ensure accurate and sensit...
journal_title：Journal of proteome research
pub_type： 杂志文章
doi：10.1021/pr300273g
更新日期：2012-11-02 00:00:00
abstract：:Phencyclidine (PCP), a noncompetitive N-methyl-D-aspartate receptor antagonist, induces psychotomimetic effects in humans and animals. Administration of PCP to rodents is used as a preclinical model for schizophrenia; however, the molecular mechanisms underlying the symptoms remain largely unknown. Acute PCP treatment...
journal_title：Journal of proteome research
pub_type： 杂志文章
doi：10.1021/pr4010794
更新日期：2014-03-07 00:00:00
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journal_title：Journal of proteome research
pub_type： 杂志文章
doi：10.1021/pr700685e
更新日期：2008-02-01 00:00:00
abstract：:During vertebrate central nervous system development, the apical neuroepithelium is bathed with embryonic Cerebrospinal Fluid (e-CSF) which plays regulatory roles in cortical cell proliferation and maintenance. Here, we report the first proteomic analysis of human e-CSF and compare it to an extensive proteomic analysi...
journal_title：Journal of proteome research
pub_type： 杂志文章
doi：10.1021/pr070247w
更新日期：2007-09-01 00:00:00
abstract：:The network of the fibrillar collagens I, III, and V, extracted from fetal calf skin and cleaved with cyanogen bromide, was studied by means of ultraviolet matrix-assisted laser desorption ionization time-of-flight mass spectrometry (UV-MALDI MS). Nearly all of the expected cyanogen bromide peptides of the different a...
journal_title：Journal of proteome research
pub_type： 杂志文章
doi：10.1021/pr070318r
更新日期：2007-11-01 00:00:00
abstract：:Multiple reaction monitoring (MRM) is emerging as a promising technique for the detection and quantification of protein biomarkers in complex biological samples. Compared to Western blotting or enzyme assays, its high sensitivity, specificity, accuracy, assay speed, and sample throughput represent a clear advantage fo...
journal_title：Journal of proteome research
pub_type： 杂志文章
doi：10.1021/pr4006712
更新日期：2013-12-06 00:00:00
abstract：:Ureteral obstruction will lead clinically to hydronephrosis, which may further develop into partial or complete loss of kidney function and even cause permanent histological damage. However, there is little knowledge of metabolic responses during the obstructed process and its recoverability. In this study, a complete...
journal_title：Journal of proteome research
pub_type： 杂志文章
doi：10.1021/acs.jproteome.8b00304
更新日期：2018-09-07 00:00:00
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journal_title：Journal of proteome research
pub_type： 杂志文章
doi：10.1021/acs.jproteome.5b00249
更新日期：2015-07-02 00:00:00
abstract：:Chinese hamster ovary cells (CHO) are the most common cell line used in the production of therapeutic proteins. Understanding the complex pattern of secreted host cell proteins (HCP) that are released by CHO cells will facilitate the development of new recombinant protein production processes. In this study, we have a...
journal_title：Journal of proteome research
pub_type： 杂志文章
doi：10.1021/pr300810f
更新日期：2012-12-07 00:00:00
abstract：:Chronic kidney disease (CKD) has emerged as a major public health problem worldwide. It frequently progresses to end-stage renal disease, which is related to very high cost and mortality. Novel biomarkers can provide insight into the novel mechanism, facilitate early detection, and monitor progression of CKD and its r...
journal_title：Journal of proteome research
pub_type： 杂志文章
doi：10.1021/acs.jproteome.6b00583
更新日期：2016-10-07 00:00:00
abstract：:The development of systematic proteomic quantification techniques in systems biology research has enabled one to perform an in-depth analysis of cellular systems. We have developed a systematic proteomic approach that encompasses the spectrum from global to targeted analysis on a single platform. We have applied this ...
journal_title：Journal of proteome research
pub_type： 杂志文章
doi：10.1021/acs.jproteome.7b00445
更新日期：2017-09-01 00:00:00
abstract：:Glioblastoma multiforme (GBM) is the most aggressive malignant primary brain tumor, with a dismal mean survival even with the current standard of care. Although in vitro cell systems can provide mechanistic insight into the regulatory networks governing GBM cell proliferation and migration, clinical samples provide a ...
journal_title：Journal of proteome research
pub_type： 杂志文章
doi：10.1021/pr500418w
更新日期：2014-11-07 00:00:00
abstract：:Deficiency of the sulfide metabolizing protein ETHE1 is the cause of ethylmalonic encephalopathy (EE), an inherited and severe metabolic disorder. To study the molecular effects of EE, we performed a proteomics study on mitochondria from cultured patient fibroblast cells. Samples from six patients were analyzed and re...
journal_title：Journal of proteome research
pub_type： 杂志文章
doi：10.1021/pr101218d
更新日期：2011-05-06 00:00:00
abstract：:Starting in 2007, we have grown soybean (Glycine max [L.] Merr. variety Soniachna) and flax (Linum usitatissimum, L. variety Kyivskyi) in the radio-contaminated Chernobyl area and analyzed the seed proteomes. In the second-generation flax seeds, we detected a 12% increase in oil content. To characterize the bases for ...
journal_title：Journal of proteome research
pub_type： 杂志文章
doi：10.1021/pr400528m
更新日期：2013-11-01 00:00:00
abstract：:The plant cell wall is a dynamic cellular compartment consisting of a complex matrix of components that can change dramatically in response to environmental stresses. During pathogen attack, for instance, a wide spectrum of proteins that participate in various sequential processes involved in plant defense is secreted...
journal_title：Journal of proteome research
pub_type： 杂志文章
doi：10.1021/pr800649s
更新日期：2009-01-01 00:00:00
abstract：:Diabetes mellitus is a complex polygenic disease caused by gene-environment interactions with multiple complications, and metabonomic analysis is crucial for pathogenesis, early diagnosis, and timely interventions. Here, we comprehensively analyzed the dynamic metabolic changes in rat urine and plasma, which were indu...
journal_title：Journal of proteome research
pub_type： 杂志文章
doi：10.1021/pr300280t
更新日期：2012-06-01 00:00:00
