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https://www.readbyqxmd.com/read/28644920/genome-scale-metabolic-models-applied-to-human-health-and-disease
#1
REVIEW
Daniel J Cook, Jens Nielsen
Advances in genome sequencing, high throughput measurement of gene and protein expression levels, data accessibility, and computational power have allowed genome-scale metabolic models (GEMs) to become a useful tool for understanding metabolic alterations associated with many different diseases. Despite the proven utility of GEMs, researchers confront multiple challenges in the use of GEMs, their application to human health and disease, and their construction and simulation in an organ-specific and disease-specific manner...
June 23, 2017: Wiley Interdisciplinary Reviews. Systems Biology and Medicine
https://www.readbyqxmd.com/read/28644690/advances-in-the-development-of-human-protein-microarrays
#2
Jessica Duarte, Jonathan M Blackburn
High-content protein microarrays in principle enable the functional interrogation of the human proteome in a broad range of applications, including biomarker discovery, profiling of immune responses, identification of enzyme substrates, and quantifying protein-small molecule, protein-protein and protein-DNA/RNA interactions. As with other microarrays, the underlying proteomic platforms are under active technological development and a range of different protein microarrays are now commercially available. However, deciphering the differences between these platforms to identify the most suitable protein microarray for the specific research question is not always straightforward...
June 23, 2017: Expert Review of Proteomics
https://www.readbyqxmd.com/read/28643940/proteomic-profiling-of-extracellular-vesicles-secreted-from-toxoplasma-gondii
#3
Pryscilla Fanini Wowk, Maria Luisa Zardo, Halisson Tesseroli Miot, Samuel Goldenberg, Paulo Costa Carvalho, Patricia Alves Mörking
Toxoplasma gondii infects a wide range of hosts worldwide, including humans and domesticated animals causing toxoplasmosis disease. Recently, exosomes, small extracellular vesicles (EV) that contain nucleic acids, proteins, and lipids derived from their original cells were linked with disease protection. The effect of EVs derived from T. gondii on the immune response and its relevance in a physiological context is unknown. Here we disclose the first proteomic profiling of T. gondii EVs compared to EVs isolated from a human foreskin fibroblast infected cell line cultured in a vesicle- free medium...
June 23, 2017: Proteomics
https://www.readbyqxmd.com/read/28643914/the-use-of-cell-culture-platforms-to-identify-novel-markers-of-bone-and-dentin-resorption
#4
W J Rody, O Krokhin, V Spicer, C A Chamberlain, M Chamberlain, K P McHugh, S M Wallet, A K Emory, J D Crull, L S Holliday
OBJECTIVES: 1) To test the hypothesis that there would be proteomic differences in the composition of exosomes isolated from osteoclasts and odontoclasts and 2) to determine the clinical usefulness of these in vitro biomarker candidates. MATERIALS AND METHODS: Mouse bone marrow-derived precursors were cultured on either dentin or bone slices and allowed to mature and begin resorption. Exosomes were isolated from cell culture media and characterized by mass spectrometry...
June 2017: Orthodontics & Craniofacial Research
https://www.readbyqxmd.com/read/28643538/do-methodological-differences-account-for-the-current-controversy-on-tissue-factor-expression-in-platelets
#5
Marta Brambilla, Laura Rossetti, Chiara Zara, Paola Canzano, Peter L A Giesen, Elena Tremoli, Marina Camera
Tissue factor (TF), the key activator of the blood coagulation cascade and of thrombus formation, is also expressed by circulating human platelets. Despite the documented in-depth characterization of platelet TF carried out in the past 15 years, some authors still fail to identify TF in platelets, especially when assessment in platelet-rich plasma (PRP) or washed platelets is carried out. This study aims to extend the characterization of the subset of TF-positive platelets in PRP from healthy subjects and to verify how different centrifugation forces, used to prepare the PRP, could affect the analysis of TF-positive platelets...
June 23, 2017: Platelets
https://www.readbyqxmd.com/read/28643204/host-factors-in-coronavirus-replication
#6
Adriaan H de Wilde, Eric J Snijder, Marjolein Kikkert, Martijn J van Hemert
Coronaviruses are pathogens with a serious impact on human and animal health. They mostly cause enteric or respiratory disease, which can be severe and life threatening, e.g., in the case of the zoonotic coronaviruses causing severe acute respiratory syndrome (SARS) and Middle East Respiratory Syndrome (MERS) in humans. Despite the economic and societal impact of such coronavirus infections, and the likelihood of future outbreaks of additional pathogenic coronaviruses, our options to prevent or treat coronavirus infections remain very limited...
June 23, 2017: Current Topics in Microbiology and Immunology
https://www.readbyqxmd.com/read/28642812/the-antioxidant-machinery-of-young-and-senescent-human-umbilical-vein-endothelial-cells-and-their-microvesicles
#7
Guillermo Bodega, Matilde Alique, Lourdes Bohórquez, Sergio Ciordia, María C Mena, Manuel R Ramírez
We examine the antioxidant role of young and senescent human umbilical vein endothelial cells (HUVECs) and their microvesicles (MVs). Proteomic and Western blot studies have shown young HUVECs to have a complete and well-developed antioxidant system. Their MVs also contain antioxidant molecules, though of a smaller and more specific range, specialized in the degradation of hydrogen peroxide and the superoxide anion via the thioredoxin-peroxiredoxin system. Senescence was shown to be associated with a large increase in the size of the antioxidant machinery in both HUVECs and their MVs...
2017: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/28642677/a-novel-workflow-combining-plaque-imaging-plaque-and-plasma-proteomics-identifies-biomarkers-of-human-coronary-atherosclerotic-plaque-disruption
#8
Regent Lee, Roman Fischer, Philip D Charles, David Adlam, Alessandro Valli, Katalin Di Gleria, Rajesh K Kharbanda, Robin P Choudhury, Charalambos Antoniades, Benedikt M Kessler, Keith M Channon
BACKGROUND: Atherosclerotic plaque rupture is the culprit event which underpins most acute vascular syndromes such as acute myocardial infarction. Novel biomarkers of plaque rupture could improve biological understanding and clinical management of patients presenting with possible acute vascular syndromes but such biomarker(s) remain elusive. Investigation of biomarkers in the context of de novo plaque rupture in humans is confounded by the inability to attribute the plaque rupture as the source of biomarker release, as plaque ruptures are typically associated with prompt down-stream events of myocardial necrosis and systemic inflammation...
2017: Clinical Proteomics
https://www.readbyqxmd.com/read/28642329/experimental-and-computational-insight-into-human-mesenchymal-stem-cell-paracrine-signaling-and-heterocellular-coupling-effects-on-cardiac-contractility-and-arrhythmogenicity
#9
Joshua Mayourian, Timothy J Cashman, Delaine K Ceholski, Bryce V Johnson, David Sachs, Deepak A Kaji, Susmita Sahoo, Joshua M Hare, Roger J Hajjar, Eric A Sobie, Kevin D Costa
Rationale: Myocardial delivery of human mesenchymal stem cells (hMSCs) is an emerging therapy for treating the failing heart. However, the relative effects of hMSC-mediated heterocellular coupling (HC) and paracrine signaling (PS) on human cardiac contractility and arrhythmogenicity remain unresolved. Objective: To better understand hMSC PS and HC effects on human cardiac contractility and arrhythmogenicity by integrating experimental and computational approaches. Methods and Results: : Extending our previous hMSC-cardiomyocyte HC computational model, we incorporated experimentally calibrated hMSC PS effects on cardiomyocyte L-type calcium channel/SERCA activity and cardiac tissue fibrosis...
June 22, 2017: Circulation Research
https://www.readbyqxmd.com/read/28641528/drug-design-synthesis-and-in-vitro-evaluation-of-substituted-benzofurans-as-hsp90-inhibitors
#10
Sundeep Kadasi, Thadeu E M M Costa, Neha Arukala, Mallika Toshakani, Chaitanya Duggineti, Sreekanth Thota, Sayan Dutta Gupta, Shiva Raj, Carmen Penido, Maria G Henriques, Nulgumnalli Manjunathaiah Raghavendra
BACKGROUND: Heat shock protein 90 is a molecular chaperone required for the stability and function of several client proteins that promote cancer cell growth and/or survival. Discovery of Hsp90 inhibitors has emerged as an attractive target of research in cancer therapeutics. Natural products like geldanamycin and radicicol are established Hsp90 inhibitors, but face limitations with toxicity and inactivity, by in vivo studies respectively. However, they lay the logical starting point for the design of novel synthetic or semi-synthetic congeners as Hsp90 inhibitors...
June 22, 2017: Medicinal Chemistry
https://www.readbyqxmd.com/read/28640667/restricting-retrotransposons-adar1-is-another-guardian-of-the-human-genome
#11
Elisa Orecchini, Loredana Frassinelli, Alessandro Michienzi
ADAR1 is an enzyme that belongs to the Adenosine Deaminases Acting on RNA (ADARs) family. These enzymes deaminate adenosines to inosines (RNA editing A-to-I) within double-stranded RNA regions in transcripts. Since inosines are recognized as guanosines by the cellular machinery, RNA editing mediated by ADARs can either lead to the formation of an altered protein (recoding) or affect different aspects of RNA metabolism. Recently, a proteomic analysis led to the identification of novel ADAR1-associated factors and found that a good fraction of them is shared with the Long Interspersed Element 1 (LINE-1 or L1) ribonucleoparticles (RNPs)...
June 22, 2017: RNA Biology
https://www.readbyqxmd.com/read/28637836/bacterial-cellulose-shifts-transcriptome-and-proteome-of-cultured-endothelial-cells-towards-native-differentiation
#12
Gerhard Feil, Ralf Horres, Julia Schulte, Andreas F Mack, Svenja Petzoldt, Caroline Arnold, Chen Meng, Lukas Jost, Jochen Boxleitner, Nicole Kiessling-Wolf, Ender Serbest, Dominic Helm, Bernhard Kuster, Isabel Hartmann, Thomas Korff, Hannes Hahne
Preserving the native phenotype of primary cells in vitro is a complex challenge. Recently, hydrogel-based cellular matrices have evolved as alternatives to conventional cell culture techniques. We developed a bacterial cellulose-based aqueous gel-like biomaterial, dubbed Xellulin, which mimics a cellular microenvironment and seems to maintain the native phenotype of cultured and primary cells. When applied to human umbilical vein endothelial cells (HUVEC), it allowed the continuous cultivation of cell monolayers for more than one year without degradation or dedifferentiation...
June 21, 2017: Molecular & Cellular Proteomics: MCP
https://www.readbyqxmd.com/read/28634118/identification-of-chickpea-seed-proteins-resistant-to-simulated-in-vitro-human-digestion
#13
I C Ribeiro, C C Leclercq, N Simões, A Toureiro, I Duarte, J B Freire, M M Chaves, J Renaut, C Pinheiro
Proteins and peptides able to resist gastrointestinal digestion and reach the intestinal mucosa have the potential to influence human health. Chickpea (Cicer arietinum L.) seed proteins are able to resist cooking (86.9% total protein) and/or in vitro simulated human digestion (15.9% total protein resists soaking, cooking and digestion with pepsin and pancreatin). To identify and characterize proteins resisting digestion we made use of different MS methodologies. The efficiency of several proteases (trypsin, AspN, chymotrypsin and LysC) was tested, and two technologies were employed (MALDI-TOF-TOF and LC-nESI-MS/MS)...
June 17, 2017: Journal of Proteomics
https://www.readbyqxmd.com/read/28633664/a-review-of-sarcoptes-scabiei-past-present-and-future
#14
REVIEW
Larry G Arlian, Marjorie S Morgan
The disease scabies is one of the earliest diseases of humans for which the cause was known. It is caused by the mite, Sarcoptes scabiei, that burrows in the epidermis of the skin of humans and many other mammals. This mite was previously known as Acarus scabiei DeGeer, 1778 before the genus Sarcoptes was established (Latreille 1802) and it became S. scabiei. Research during the last 40 years has tremendously increased insight into the mite's biology, parasite-host interactions, and the mechanisms it uses to evade the host's defenses...
June 20, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/28632924/metabolomics-as-a-driver-in-advancing-precision-medicine-in-sepsis
#15
Michelle Eckerle, Lilliam Ambroggio, Michael Puskarich, Brent Winston, Alan E Jones, Theodore J Standiford, Kathleen A Stringer
OBJECTIVE: The objective of this review is to explain the science of metabolomics-a science of systems biology that measures and studies endogenous small molecules (metabolites) that are present in a single biological sample-and its application to the diagnosis and treatment of sepsis. In addition, we discuss how discovery through metabolomics can contribute to the development of precision medicine targets for this complex disease state and the potential avenues for those new discoveries to be applied in the clinical environment...
June 20, 2017: Pharmacotherapy
https://www.readbyqxmd.com/read/28632398/the-mitochondrial-protein-atlas-a-database-of-experimentally-verified-information-on-the-human-mitochondrial-proteome
#16
Noa Godin, Jerry Eichler
Given its central role in various biological systems, as well as its involvement in numerous pathologies, the mitochondrion is one of the best-studied organelles. However, although the mitochondrial genome has been extensively investigated, protein-level information remains partial, and in many cases, hypothetical. The Mitochondrial Protein Atlas (MPA; URL: lifeserv.bgu.ac.il/wb/jeichler/MPA ) is a database that provides a complete, manually curated inventory of only experimentally validated human mitochondrial proteins...
June 20, 2017: Journal of Computational Biology: a Journal of Computational Molecular Cell Biology
https://www.readbyqxmd.com/read/28631009/methods-of-probing-the-interactions-between-small-molecules-and-disordered-proteins
#17
REVIEW
Gabriella T Heller, Francesco A Aprile, Michele Vendruscolo
It is generally recognized that a large fraction of the human proteome is made up of proteins that remain disordered in their native states. Despite the fact that such proteins play key biological roles and are involved in many major human diseases, they still represent challenging targets for drug discovery. A major bottleneck for the identification of compounds capable of interacting with these proteins and modulating their disease-promoting behaviour is the development of effective techniques to probe such interactions...
June 19, 2017: Cellular and Molecular Life Sciences: CMLS
https://www.readbyqxmd.com/read/28630587/the-most-common-technologies-and-tools-for-functional-genome-analysis
#18
Evelina Gasperskaja, Vaidutis Kučinskas
Since the sequence of the human genome is complete, the main issue is how to understand the information written in the DNA sequence. Despite numerous genome-wide studies that have already been performed, the challenge to determine the function of genes, gene products, and also their interaction is still open. As changes in the human genome are highly likely to cause pathological conditions, functional analysis is vitally important for human health. For many years there have been a variety of technologies and tools used in functional genome analysis...
2017: Acta medica Lituanica
https://www.readbyqxmd.com/read/28628884/proteomics-profiling-reveals-inflammatory-biomarkers-of-antidepressant-treatment-response-findings-from-the-co-med-trial
#19
Bharathi S Gadad, Manish K Jha, Bruce D Grannemann, Taryn L Mayes, Madhukar H Trivedi
Animal and human studies suggest an association between depression and aberrant immune response. Further, common inflammatory markers may change during the course of antidepressant treatment in patients. The objective of this study was to evaluate changes in inflammatory markers and clinical outcomes from subjects enrolled in the Combining Medications to Enhance Depression Outcome (CO-MED) trial. At baseline and week 12 (treatment completion), plasma samples of 102 participants were analyzed via a multiplex assay comprised of inflammatory markers using a 27-plex standard assay panel plus a 4-plex human acute phase xMAP technology based platform...
May 26, 2017: Journal of Psychiatric Research
https://www.readbyqxmd.com/read/28628644/targeting-multiple-pro-apoptotic-signaling-pathways-with-curcumin-in-prostate-cancer-cells
#20
Mariela Rivera, Yanilda Ramos, Madeline Rodríguez-Valentín, Sheila López-Acevedo, Luis A Cubano, Jin Zou, Qiang Zhang, Guangdi Wang, Nawal M Boukli
Curcumin, an extract from the turmeric rhizome (Curcuma longa), is known to exhibit anti-inflammatory, antioxidant, chemopreventive and antitumoral activities against aggressive and recurrent cancers. Accumulative data indicate that curcumin may induce cancer cell death. However, the detailed mechanism underlying its pro-apoptotic and anti-cancer effects remains to be elucidated. In the present study, we examined the signaling pathways triggered by curcumin, specifically, the exact molecular mechanisms of curcumin-induced apoptosis in highly metastatic human prostate cancer cells...
2017: PloS One
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