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https://www.readbyqxmd.com/read/29909421/application-of-isobaric-tags-for-relative-and-absolute-quantification-itraq-coupled-with-two-dimensional-liquid-chromatography-tandem-mass-spectrometry-in-quantitative-proteomic-analysis-for-discovery-of-serum-biomarkers-for-idiopathic-pulmonary-fibrosis
#1
Ying Zhang, Qian Xin, Zhen Wu, Chaochao Wang, Yongbin Wang, Qian Wu, Rui Niu
BACKGROUND The present study was performed to explore the presence of informative protein biomarkers of human serum proteome in idiopathic pulmonary fibrosis (IPF). MATERIAL AND METHODS Serum samples were profiled using iTRAQ coupled with two-dimensional liquid chromatography/tandem mass spectrometry (2D-LC-MS/MS) technique, and ELISA was used to validate candidate biomarkers. RESULTS A total of 394 proteins were identified and 97 proteins were associated with IPF. Four biomarker candidates generated from iTRAQ experiments - CRP, fibrinogen-α chain, haptoglobin, and kininogen-1 - were successfully verified using ELISA...
June 17, 2018: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/29909287/prazosin-induced-lysosomal-tubulation-interferes-with-cytokinesis-and-the-endocytic-sorting-of-the-tumour-antigen-cd98hc
#2
Robert Fuchs, Anika Stracke, Viktoria Holzmann, Gerfried Luschin-Ebengreuth, Nathalie Meier-Allard, Nadine Ebner, Teresa Maria Lassacher, Markus Absenger-Novak, Eleonore Fröhlich, Matthias Schittmayer, Sara Cano Crespo, Manuel Palacin, Beate Rinner, Ruth Birner-Gruenberger
The quinazoline based drug prazosin (PRZ) is a potent inducer of apoptosis in human cancer cells. We recently reported that PRZ enters cells via endocytosis and induces tubulation of the endolysosomal system. In a proteomics approach aimed at identifying potential membrane proteins with binding affinity to quinazolines, we detected the oncoprotein CD98hc. We confirmed shuttling of CD98hc towards lysosomes and upregulation of CD98hc expression in PRZ treated cells. Gene knockout (KO) experiments revealed that endocytosis of PRZ still occurs in the absence of CD98hc - suggesting that PRZ does not enter the cell via CD98hc but misroutes the protein towards tubular lysosomes...
June 14, 2018: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/29908461/air-pollution-and-the-fetal-origin-of-disease-a-systematic-review-of-the-molecular-signatures-of-air-pollution-exposure-in-human-placenta
#3
REVIEW
Leen J Luyten, Nelly D Saenen, Bram G Janssen, Karen Vrijens, Michelle Plusquin, Harry A Roels, Florence Debacq-Chainiaux, Tim S Nawrot
BACKGROUND: Fetal development is a crucial window of susceptibility in which exposure-related alterations can be induced on the molecular level, leading to potential changes in metabolism and development. The placenta serves as a gatekeeper between mother and fetus, and is in contact with environmental stressors throughout pregnancy. This makes the placenta as a temporary organ an informative non-invasive matrix suitable to investigate omics-related aberrations in association with in utero exposures such as ambient air pollution...
June 13, 2018: Environmental Research
https://www.readbyqxmd.com/read/29908261/a-proteomic-study-of-the-pulmonary-injury-induced-by-microcystin-lr-in-mice
#4
Sujuan Zhao, Hong Sun, Wei Yan, Dexiang Xu, Tong Shen
MCLR has been shown to act as potent hepatotoxin, and recent studies showed that MCs can accumulate in lung tissue and exert adverse effects. However, the exact mechanism still remain unclear. The present study mainly focuses on the impairments of respiratory system after MCLR exposure in mice. After intratracheal instillation with MCLR (0, 10 and 25 μg/kg bw), histological change was examined in MCLR exposure groups. Results indicated that exposure of MCLR led to serious histopathology alteration and apoptosis in lung of mice...
June 13, 2018: Toxicon: Official Journal of the International Society on Toxinology
https://www.readbyqxmd.com/read/29908126/transglutaminase-type-2-in-the-regulation-of-proteostasis
#5
Manuela D'Eletto, Federica Rossin, Olga Fedorova, Maria Grazia Farrace, Mauro Piacentini
The maintenance of protein homeostasis (proteostasis) is a fundamental aspect of cell physiology that is essential for the survival of organisms under a variety of environmental and/or intracellular stress conditions. Acute and/or persistent stress exceeding the capacity of the intracellular homeostatic systems results in protein aggregation and/or damaged organelles that leads to pathological cellular states often resulting in cell death. These events are continuously suppressed by a complex macromolecular machinery that uses different intracellular pathways to maintain the proteome integrity in the various subcellular compartments ensuring a healthy cellular life span...
June 1, 2018: Biological Chemistry
https://www.readbyqxmd.com/read/29908079/targeted-brain-proteomics-uncover-multiple-pathways-to-alzheimer-s-dementia
#6
Lei Yu, Vladislav A Petyuk, Chris Gaiteri, Sara Mostafavi, Tracy Young-Pearse, Raj C Shah, Aron S Buchman, Julie A Schneider, Paul D Piehowski, Ryan L Sontag, Thomas L Fillmore, Tujin Shi, Richard D Smith, Philip L De Jager, David A Bennett
OBJECTIVE: Previous gene expression analysis identified a network of co-expressed genes that is associated with β-amyloid neuropathology and cognitive decline in older adults. The current work targeted influential genes in this network with quantitative proteomics to identify potential novel therapeutic targets. METHODS: Data came from 834 community-based older persons who were followed annually, died and underwent brain autopsy. Uniform structured postmortem evaluations assessed the burden of β-amyloid and other common age-related neuropathologies...
June 16, 2018: Annals of Neurology
https://www.readbyqxmd.com/read/29908064/unconventional-rna-binding-proteins-an-uncharted-zone-in-rna-biology
#7
REVIEW
Waleed S Albihlal, André P Gerber
RNA-binding proteins play essential roles in the post-transcriptional regulation of gene expression. While hundreds of RNA-binding proteins can be predicted computationally, the recent introduction of proteome-wide approaches has dramatically expanded the repertoire of proteins interacting with RNA. Besides canonical RNA-binding proteins that contain characteristic RNA-binding domains, many proteins that lack such domains but have other well-characterised cellular functions were identified; including metabolic enzymes, heat shock proteins, kinases, as well as transcription factors and chromatin-associated proteins...
June 16, 2018: FEBS Letters
https://www.readbyqxmd.com/read/29908008/long-term-cadmium-exposure-influences-the-abundance-of-proteins-that-impact-the-cell-wall-structure-in-medicago-sativa-stems
#8
Annelie Gutsch, Els Keunen, Gea Guerriero, Jenny Renaut, Ann Cuypers, Jean-François Hausman, Kjell Sergeant
Cadmium (Cd) is a non-essential, toxic heavy metal that poses serious threats to both the ecosystem and the health of humans. Plants employ various cellular and molecular mechanisms to minimize the impact of Cd toxicity and the cell walls function as defensive barrier during Cd exposure. In this study, we adopted a quantitative gel-based proteomic approach (two-dimensional difference gel electrophoresis) to investigate changes in the abundance of cell wall- and soluble proteins in stems of Medicago sativa L...
June 15, 2018: Plant Biology
https://www.readbyqxmd.com/read/29907871/c3a-receptor-antagonism-as-a-novel-therapeutic-target-for-chronic-rhinosinusitis
#9
Jennifer K Mulligan, Kunal Patel, Tucker Williamson, Nicholas Reaves, William Carroll, Sarah E Stephenson, Peng Gao, Richard R Drake, Benjamin A Neely, Stephen Tomlinson, Rodney J Schlosser, Carl Atkinson
Chronic rhinosinusitis with nasal polyps (CRSwNP) is an inflammatory disease with an unknown etiology. Recent studies have implicated the complement system as a potential modulator of disease immunopathology. We performed proteomic pathway enrichment analysis of differentially increased proteins, and found an enrichment of complement cascade pathways in the nasal mucus of individuals with CRSwNP as compared to control subjects. Sinonasal mucus levels of complement 3 (C3) correlated with worse subjective disease severity, whereas no significant difference in systemic C3 levels could be determined in plasma samples...
June 15, 2018: Mucosal Immunology
https://www.readbyqxmd.com/read/29907866/intestinal-damage-precedes-mucosal-immune-dysfunction-in-siv-infection
#10
Tiffany Hensley-McBain, Alicia R Berard, Jennifer A Manuzak, Charlene J Miller, Alexander S Zevin, Patricia Polacino, Jillian Gile, Brian Agricola, Mark Cameron, Shiu-Lok Hu, Jacob D Estes, R Keith Reeves, Jeremy Smedley, Brandon F Keele, Adam D Burgener, Nichole R Klatt
HIV and pathogenic SIV infection are characterized by mucosal dysfunction including epithelial barrier damage, loss of Th17 cells, neutrophil infiltration, and microbial translocation with accompanying inflammation. However, it is unclear how and when these contributing factors occur relative to one another. In order to determine whether any of these features initiates the cycle of damage, we longitudinally evaluated the kinetics of mucosal and systemic T-cell activation, microbial translocation, and Th17 cell and neutrophil frequencies following intrarectal SIV infection of rhesus macaques...
June 15, 2018: Mucosal Immunology
https://www.readbyqxmd.com/read/29907860/redefining-systemic-lupus-erythematosus-smaartt-proteomics
#11
Marvin J Fritzler, Michael Mahler
No abstract text is available yet for this article.
June 15, 2018: Nature Reviews. Rheumatology
https://www.readbyqxmd.com/read/29907827/in-planta-proximity-dependent-biotin-identification-bioid
#12
Madiha Khan, Ji-Young Youn, Anne-Claude Gingras, Rajagopal Subramaniam, Darrell Desveaux
Proximity dependent biotin identification (BioID) has emerged as a powerful tool for studies of proteome architecture, including insoluble or membrane-associated proteins. The technique has been well established in mammalian cells but has yet to be applied to whole plant systems. Here we demonstrate the application of BioID on leaf tissues of the model plant Arabidopsis thaliana, thereby expanding the versatility of this important technique and providing a powerful proteomics tool for plant biologists.
June 15, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29907817/serum-proteomic-profiling-to-identify-biomarkers-of-premature-carotid-atherosclerosis
#13
Santosh D Bhosale, Robert Moulder, Mikko S Venäläinen, Juhani S Koskinen, Niina Pitkänen, Markus T Juonala, Mika A P Kähönen, Terho J Lehtimäki, Jorma S A Viikari, Laura L Elo, David R Goodlett, Riitta Lahesmaa, Olli T Raitakari
To evaluate the presence of serum protein biomarkers associated with the early phases of formation of carotid atherosclerotic plaques, label-free quantitative proteomics analyses were made for serum samples collected as part of The Cardiovascular Risk in Young Finns Study. Samples from subjects who had an asymptomatic carotid artery plaque detected by ultrasound examination (N = 43, Age = 30-45 years) were compared with plaque free controls (N = 43) (matched for age, sex, body weight and systolic blood pressure)...
June 15, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29907803/effect-of-temperature-on-burkholderia-pseudomallei-growth-proteomic-changes-motility-and-resistance-to-stress-environments
#14
Suporn Paksanont, Kitisak Sintiprungrat, Thatcha Yimthin, Pornpan Pumirat, Sharon J Peacock, Narisara Chantratita
Burkholderia pseudomallei is a flagellated, gram-negative environmental bacterium that causes melioidosis, a severe infectious disease of humans and animals in tropical areas. We hypothesised that B. pseudomallei may undergo phenotypic adaptation in response to an increase in growth temperature. We analysed the growth curves of B. pseudomallei strain 153 cultured in Luria-Bertani broth at five different temperatures (25 °C-42 °C) and compared the proteomes of bacteria cultured at 37 °C and 42 °C...
June 15, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29907748/extracellular-nanovesicles-released-from-the-commensal-yeast-malassezia-sympodialis-are-enriched-in-allergens-and-interact-with-cells-in-human-skin
#15
Henrik J Johansson, Helen Vallhov, Tina Holm, Ulf Gehrmann, Anna Andersson, Catharina Johansson, Hans Blom, Marta Carroni, Janne Lehtiö, Annika Scheynius
Malassezia sympodialis is a dominant commensal fungi in the human skin mycobiome but is also associated with common skin disorders including atopic eczema (AE). M. sympodialis releases extracellular vesicles, designated MalaEx, which are carriers of small RNAs and allergens, and they can induce inflammatory cytokine responses. Here we explored how MalaEx are involved in host-microbe interactions by comparing protein content of MalaEx with that of the parental yeast cells, and by investigating interactions of MalaEx with cells in the skin...
June 15, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29907735/identification-of-proteins-potentially-associated-with-renal-aging-in-rats
#16
Diangeng Li, Delong Zhao, Weiguang Zhang, Qian Ma, Dong Liu, Qi Huang, Ying Zheng, Xueyuan Bai, Xuefeng Sun, Xiangmei Chen
We established a young (Y)-old (O) rat kidney transplantation model. With this model, we detected no age-related differences in renal structure between Y→Y and Y→O kidneys or O→O and O→Y kidneys. However, we did detect differences in levels of the senescence markers β-gal and p16 as well as the inflammatory cytokines TNF-α and IL-1β. Using proteomics analysis we detected 66 proteins associated with suppression of aging and 73 proteins associated with enhancement of aging. After construction of a protein-protein interaction network, a total of 73 nodes and 99 edges were analyzed using MCODE, and three significant modules were selected...
June 14, 2018: Aging
https://www.readbyqxmd.com/read/29907545/differential-proteome-analysis-of-diabetes-mellitus-type-2-and-its-pathophysiological-complications
#17
REVIEW
Waleed Sohail, Fatimah Majeed, Amber Afroz
The prevalence of Diabetes Mellitus Type 2 (DM 2) is increasing every passing year due to some global changes in lifestyles of people. The exact underlying mechanisms of the progression of this disease are not yet known. However recent advances in the combined omics more particularly in proteomics and genomics have opened a gateway towards the understanding of predetermined genetic factors, progression, complications and treatment of this disease. Here we shall review the recent advances in proteomics that have led to an early and better diagnostic approaches in controlling DM 2 more importantly the comparison of structural and functional protein biomarkers that are modified in the diseased state...
June 11, 2018: Diabetes & Metabolic Syndrome
https://www.readbyqxmd.com/read/29907308/advanced-editing-of-the-nuclear-and-plastid-genomes-in-plants
#18
Agnieszka A Piatek, Scott C Lenaghan, C Neal Stewart
Genome editing is a powerful suite of technologies utilized in basic and applied plant research. Both nuclear and plastid genomes have been genetically engineered to alter traits in plants. While the most frequent molecular outcome of gene editing has been knockouts resulting in a simple deletion of an endogenous protein of interest from the host's proteome, new genes have been added to plant genomes and, in several instances, the sequence of endogenous genes have been targeted for a few coding changes. Targeted plant characteristics for genome editing range from single gene targets for agronomic input traits to metabolic pathways to endow novel plant function...
August 2018: Plant Science: An International Journal of Experimental Plant Biology
https://www.readbyqxmd.com/read/29907235/rapid-valproic-acid-induced-modulation-of-the-traumatic-proteome-in-a-porcine-model-of-traumatic-brain-injury-and-hemorrhagic-shock
#19
Michael Weykamp, Vahagn C Nikolian, Isabel S Dennahy, Gerald A Higgins, Patrick E Georgoff, Henriette Remmer, Mohamed H Ghandour, Hasan B Alam
BACKGROUND: Histone deacetylase inhibitors such as valproic acid (VPA) improve survival in lethal models of hemorrhagic shock and polytrauma. Although VPA is known to modulate transcription, its ability to reduce mortality within minutes of administration suggests involvement of a rapid, posttranslational mechanism. We hypothesized that VPA treatment would cause proteomic changes within minutes of treatment including quantitative and/or posttranslational differences in structural and/or effector proteins...
August 2018: Journal of Surgical Research
https://www.readbyqxmd.com/read/29906780/in-vivo-evaluation-of-the-response-of-galleria-mellonella-larvae-to-novel-copper-ii-phenanthroline-phenazine-complexes
#20
Garret Rochford, Zara Molphy, Niall Browne, Carla Surlis, Michael Devereux, Malachy McCann, Andrew Kellett, Orla Howe, Kevin Kavanagh
Herein we report the in-vivo characterisation and metabolic changes in Galleria mellonella larvae to a series of bis-chelate copper(II) phenanthroline-phenazine cationic complexes of [Cu(phen)2 ]2+ (Cu-Phen), [Cu(DPQ)(Phen)]2+ (Cu-DPQ-Phen) and [Cu(DPPZ)(Phen)]2+ (Cu-DPPZ-Phen) (where phen = 1,10-phenanthroline, DPQ = dipyrido[3,2-ƒ:2',3'-h]quinoxaline and DPPZ = dipyrido[3,2-a:2',3'-c]phenazine). Our aim was to investigate the influence of the systematic extension of the ligated phenazine ligand in the G...
June 1, 2018: Journal of Inorganic Biochemistry
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