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Tissue specific protein interactions

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https://www.readbyqxmd.com/read/28634464/anti-inflammatory-and-neuroprotective-effects-of-co-ultrapealut-in-a-mouse-model-of-vascular-dementia
#1
Rosalba Siracusa, Daniela Impellizzeri, Marika Cordaro, Rosalia Crupi, Emanuela Esposito, Stefania Petrosino, Salvatore Cuzzocrea
Vascular dementia (VaD), the second most common cause of cognitive impairment in the population, is a disease that results from reduction in regional cerebral blood flow and involves oxidative stress and inflammation. Co-ultramicronized PEALut (co-ultra PEALut) is a new compound with beneficial effects, which include anti-inflammatory and antioxidant properties. Recently, co-ultraPEALut has been shown to exhibit neuroprotective effects in models of Parkinson's disease, cerebral ischemia and Alzheimer's disease...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/28634433/the-draft-genome-of-the-non-host-associated-methanobrevibacter-arboriphilus-strain-dh1-encodes-a-large-repertoire-of-adhesin-like-proteins
#2
Anja Poehlein, Rolf Daniel, Henning Seedorf
Methanobrevibacter arboriphilus strain DH1 is an autotrophic methanogen that was isolated from the wetwood of methane-emitting trees. This species has been of considerable interest for its unusual oxygen tolerance and has been studied as a model organism for more than four decades. Strain DH1 is closely related to other host-associated Methanobrevibacter species from intestinal tracts of animals and the rumen, making this strain an interesting candidate for comparative analysis to identify factors important for colonizing intestinal environments...
2017: Archaea: An International Microbiological Journal
https://www.readbyqxmd.com/read/28634265/30-years-of-the-mineralocorticoid-receptor-coregulators-as-mediators-of-mineralocorticoid-receptor-signalling-diversity
#3
REVIEW
Peter J Fuller, Jun Yang, Morag J Young
The cloning of the mineralocorticoid receptor (MR) 30 years ago was the start of a new era of research into the regulatory processes of MR signalling at target genes in the distal nephron, and subsequently in many other tissues. Nuclear receptor (NR) signalling is modified by interactions with coregulatory proteins that serve to enhance or inhibit the gene transcriptional responses. Over 400 coregulatory proteins have been described for the NR super family, many with functional roles in signalling, cellular function, physiology and pathophysiology...
July 2017: Journal of Endocrinology
https://www.readbyqxmd.com/read/28632775/unique-cellular-interactions-between-pancreatic-cancer-cells-and-the-omentum
#4
Valerya Feygenzon, Shelly Loewenstein, Nir Lubezky, Metsada Pasmanic-Chor, Osnat Sher, Joseph M Klausner, Guy Lahat
Pancreatic cancer is a common cause of cancer-related mortality. Omental spread is frequent and usually represents an ominous event, leading to patient death. Omental metastasis has been studied in ovarian cancer, but data on its role in pancreatic cancer are relatively scarce and the molecular biology of this process has yet to be explored. We prepared tissue explants from human omental fat, and used conditioned medium from the explants for various in vitro and in vivo experiments designed to evaluate pancreatic cancer development, growth, and survival...
2017: PloS One
https://www.readbyqxmd.com/read/28632769/combining-omics-and-microscopy-to-visualize-interactions-between-the-asian-citrus-psyllid-vector-and-the-huanglongbing-pathogen-candidatus-liberibacter-asiaticus-in-the-insect-gut
#5
Angela Kruse, Somayeh Fattah-Hosseini, Surya Saha, Richard Johnson, EricaRose Warwick, Kasie Sturgeon, Lukas Mueller, Michael J MacCoss, Robert G Shatters, Michelle Cilia Heck
Huanglongbing, or citrus greening disease, is an economically devastating bacterial disease of citrus. It is associated with infection by the gram-negative bacterium Candidatus Liberibacter asiaticus (CLas). CLas is transmitted by Diaphorina citri, the Asian citrus psyllid (ACP). For insect transmission to occur, CLas must be ingested during feeding on infected phloem sap and cross the gut barrier to gain entry into the insect vector. To investigate the effects of CLas exposure at the gut-pathogen interface, we performed RNAseq and mass spectrometry-based proteomics to analyze the transcriptome and proteome, respectively, of ACP gut tissue...
2017: PloS One
https://www.readbyqxmd.com/read/28632140/thermal-stability-and-rheological-properties-of-the-non-stick-caf1-biomaterial
#6
Yakup Ulusu, Gema Dura, Helen Waller, Matthew Benning, David Fulton, Jeremy Lakey, Daniel Thomas Peters
The ability to culture cells in three dimensions has many applications, from drug discovery to wound healing. 3D cell culture methods often require appropriate scaffolds that mimic the cellular environments of different tissue types. The choice of material from which these scaffolds are made is of paramount importance, as its properties will define the manner in which cells interact with the scaffold. Caf1 is a protein polymer that is secreted from its host organism, Yersinia pestis, to enable escape from phagocytosis...
June 20, 2017: Biomedical Materials
https://www.readbyqxmd.com/read/28630894/next-generation-probes-particles-and-proteins-for-neural-interfacing
#7
REVIEW
Jonathan Rivnay, Huiliang Wang, Lief Fenno, Karl Deisseroth, George G Malliaras
Bidirectional interfacing with the nervous system enables neuroscience research, diagnosis, and therapy. This two-way communication allows us to monitor the state of the brain and its composite networks and cells as well as to influence them to treat disease or repair/restore sensory or motor function. To provide the most stable and effective interface, the tools of the trade must bridge the soft, ion-rich, and evolving nature of neural tissue with the largely rigid, static realm of microelectronics and medical instruments that allow for readout, analysis, and/or control...
June 2017: Science Advances
https://www.readbyqxmd.com/read/28630100/nlrp2-and-faf1-deficiency-blocks-early-embryogenesis-in-the-mouse
#8
Hui Peng, Hai-Jun Liu, Fang Liu, Yuyun Gao, Jing Chen, Jianchao Huo, Jinglin Han, Tianfang Xiao, Wenchang Zhang
Nlrp2 is a maternal effect gene specifically expressed by mouse ovaries; deletion of this gene from zygotes is known to result in early embryonic arrest. In the present study, we identified FAF1 protein as a specific binding partner of the NLRP2 protein in both mouse oocytes and preimplantation embryos. In addition to early embryos, both Faf1 mRNA and protein were detected in multiple tissues. NLRP2 and FAF1 proteins were co-localized to both the cytoplasm and nucleus during the development of oocytes and preimplantation embryos...
June 19, 2017: Reproduction: the Official Journal of the Society for the Study of Fertility
https://www.readbyqxmd.com/read/28629162/promotion-of-tumor-invasion-by-tumor-associated-macrophages-the-role-of-csf-1-activated-phosphatidylinositol-3-kinase-and-src-family-kinase-motility-signaling
#9
REVIEW
Amy R Dwyer, Eloise L Greenland, Fiona J Pixley
Macrophages interact with cells in every organ to facilitate tissue development, function and repair. However, the close interaction between macrophages and parenchymal cells can be subverted in disease, particularly cancer. Motility is an essential capacity for macrophages to be able to carry out their various roles. In cancers, the macrophage's interstitial migratory ability is frequently co-opted by tumor cells to enable escape from the primary tumor and metastatic spread. Macrophage accumulation within and movement through a tumor is often stimulated by tumor cell production of the mononuclear phagocytic growth factor, colony-stimulating factor-1 (CSF-1)...
June 18, 2017: Cancers
https://www.readbyqxmd.com/read/28629029/chitosan-coated-amyloid-fibrils-increase-adipogenesis-of-mesenchymal-stem-cells
#10
Jay Gilbert, Nicholas P Reynolds, Sarah M Russell, David Haylock, Sally McArthur, Mirren Charnley, Owen G Jones
Mesenchymal stem cells (MSCs) have the potential to revolutionize medicine due to their ability to differentiate into specific lineages for targeted tissue repair. Development of materials and cell culture platforms that improve differentiation of either autologous or allogenic stem cell sources into specific lineages would enhance clinical utilization of MCSs. In this study, nanoscale amyloid fibrils were evaluated as substrate materials to encourage viability, proliferation, multipotency, and differentiation of MSCs...
October 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28627752/patterning-on-topography-for-generation-of-cell-culture-substrates-with-independent-nanoscale-control-of-chemical-and-topographical-extracellular-matrix-cues
#11
Emily N Sevcik, John M Szymanski, Quentin Jallerat, Adam W Feinberg
The cell microenvironment plays an important role in many biological processes, including development and disease progression. Key to this is the extracellular matrix (ECM), a complex biopolymer network serving as the primary insoluble signaling network for physical, chemical, and mechanical cues. In vitro, the ability to engineer the ECM at the micro- and nanoscales is a critical tool to systematically interrogate the influence of ECM properties on cellular responses. Specifically, both topographical and chemical surface patterning has been shown to direct cell alignment and tissue architecture on biomaterial surfaces, however, it has proven challenging to independently control these surface properties...
June 19, 2017: Current Protocols in Cell Biology
https://www.readbyqxmd.com/read/28625053/annotation-of-the-domestic-pig-genome-by-quantitative-proteogenomics
#12
Harald Marx, Hannes Hahne, Susanne E Ulbrich, Angelika Schnieke, Oswald Rottmann, Dimitrij Frishman, Bernhard Kuster
The pig is one of the earliest domesticated animals in the history of human civilization and represents one of the most important livestock animals. The recent sequencing of the Sus scrofa genome was a major step towards the comprehensive understanding of porcine biology, evolution and its utility as a promising large animal model for biomedical and xenotransplantation research. However, the functional and structural annotation of the Sus scrofa genome is far from complete. Here, we present mass spectrometry-based quantitative proteomics data of nine juvenile organs and six embryonic stages between 18 to 39 days after gestation...
June 19, 2017: Journal of Proteome Research
https://www.readbyqxmd.com/read/28621426/foxd1-protein-interacts-with-wnt-and-bmp-signaling-to-differentially-pattern-mesoderm-and-neural-tissue
#13
Hanna Polevoy, Anastasia Malyarova, Yuri Fonar, Sara Elias, Dale Frank
The foxd1 gene (previously known as Brain Factor 2/BF2) is expressed during early Xenopus laevis development. At gastrula stages, foxd1 is expressed in dorsal mesoderm regions fated for muscle and notochord, while at neurula stages, foxd1 is expressed in the forebrain region. Previous studies in the neural plate showed that FoxD1 protein acts as transcriptional repressor downstream of BMP antagonism, neuralizing the embryo to control anterior neural cell fates. FoxD1 mesoderm function was not rigorously analyzed, but ectopic FoxD1 levels increased muscle marker expression in embryos...
2017: International Journal of Developmental Biology
https://www.readbyqxmd.com/read/28621419/tam-receptor-signaling-in-development
#14
Tal Burstyn-Cohen
TYRO3, AXL and MERTK comprise the TAM family of receptor protein tyrosine kinases. Activated by their ligands, protein S (PROS1) and growth-arrest-specific 6 (GAS6), they mediate numerous cellular functions throughout development and adulthood. Expressed by a myriad of cell types and tissues, they have been implicated in homeostatic regulation of the immune, nervous, vascular, bone and reproductive systems. The loss-of-function of TAM signaling in adult tissues culminates in the destruction of tissue homeostasis and diseased states, while TAM gain-of-function in various tumors promotes cancer phenotypes...
2017: International Journal of Developmental Biology
https://www.readbyqxmd.com/read/28620586/tracking-proteins-secreted-by-bacteria-what-s-in-the-toolbox
#15
REVIEW
Benoit Maffei, Olivera Francetic, Agathe Subtil
Bacteria have acquired multiple systems to expose proteins on their surface, release them in the extracellular environment or even inject them into a neighboring cell. Protein secretion has a high adaptive value and secreted proteins are implicated in many functions, which are often essential for bacterial fitness. Several secreted proteins or secretion machineries have been extensively studied as potential drug targets. It is therefore important to identify the secretion substrates, to understand how they are specifically recognized by the secretion machineries, and how transport through these machineries occurs...
2017: Frontiers in Cellular and Infection Microbiology
https://www.readbyqxmd.com/read/28617990/cell-specific-diversity-in-the-expression-and-organization-of-cytoplasmic-plaque-proteins-of-apical-junctions
#16
Ekaterina Vasileva, Sophie Sluysmans, Marie-Luce Bochaton-Piallat, Sandra Citi
Tight and adherens junctions play critical roles in the barrier, adhesion, and signaling functions of epithelial and endothelial cells. How the molecular organization of these junctions is tuned to the widely diverse physiological requirements of each tissue type is not well understood. Here, we address this question by examining the expression, localization, and interactions of major cytoplasmic plaque proteins of tight and adherens junctions in different cultured epithelial and endothelial cell lines. Immunoblotting and immunofluorescence analyses show that the expression profiles of cingulin, paracingulin, ZO-1, ZO-2, ZO-3, PLEKHA7, afadin, PDZD11, p120-catenin, and α-catenin, as well as the transmembrane junctional proteins occludin, E-cadherin, and VE-cadherin, are significantly diverse when comparing kidney cells (MDCK, mCCD), keratinocytes (HaCaT), lung carcinoma (A427, A549), and endothelium-derived cells (bEnd...
June 15, 2017: Annals of the New York Academy of Sciences
https://www.readbyqxmd.com/read/28617227/in-silico-re-identification-of-properties-of-drug-target-proteins
#17
Baeksoo Kim, Jihoon Jo, Jonghyun Han, Chungoo Park, Hyunju Lee
BACKGROUND: Computational approaches in the identification of drug targets are expected to reduce time and effort in drug development. Advances in genomics and proteomics provide the opportunity to uncover properties of druggable genomes. Although several studies have been conducted for distinguishing drug targets from non-drug targets, they mainly focus on the sequences and functional roles of proteins. Many other properties of proteins have not been fully investigated. METHODS: Using the DrugBank (version 3...
May 31, 2017: BMC Bioinformatics
https://www.readbyqxmd.com/read/28615508/integrative-bioinformatics-analysis-identifies-robo1-as-a-potential-therapeutic-target-modified-by-mir-218-in-hepatocellular-carcinoma
#18
Junqing Wang, Yunyun Zhou, Xiaochun Fei, Xunhua Chen, Rui Chen, Zhenggang Zhu, Yongjun Chen
Patients diagnosed with advanced hepatocellular carcinoma (HCC) presented poor prognosis and short survival time. Althouth accumulating contribution of continuous research has gradually revealed complex tumorigenesis mechanism of HCC with numerous and jumbled biomarkers, those specific ones for HCC diagnose and therapeutic treatment are required illustration. Multiple genes over-expressed in HCC specimens with at least 1.5 fold change were cohorted, compared with the non-cancerous tissues through integrative bioinformatics analysis from Gene Expression Omnibus (GEO) datasets GSE14520 and GSE6764, including 445 and 45 cases of samples spearatly, along with intensive exploration on the Cancer Genome Altas (TCGA) dataset of liver cancer...
May 23, 2017: Oncotarget
https://www.readbyqxmd.com/read/28614588/architecture-of-the-paracellular-channels-formed-by-claudins-of-the-blood-brain-barrier-tight-junctions
#19
Flaviyan Jerome Irudayanathan, Nan Wang, Xiaoyi Wang, Shikha Nangia
Tight junctions (TJs) are key players in determining tissue-specific paracellular permeability across epithelial and endothelial membranes. Claudin proteins, the primary determinants of TJs structure and functionality, assemble in paracellular spaces to form channels and pores that are charge and size selective. Here, using molecular dynamics (MD) simulations, we elucidate the molecular assembly of claudin-3 and claudin-5 proteins of blood-brain barrier TJs. Despite having a high degree of sequence and structural similarity, these two claudins form different types of cis-interactions...
June 14, 2017: Annals of the New York Academy of Sciences
https://www.readbyqxmd.com/read/28611063/global-proteomic-analysis-of-advanced-glycation-end-products-in-the-arabidopsis-proteome-provides-evidence-for-age-related-glycation-hotspots
#20
Tatiana Bilova, Gagan Paudel, Nikita Shilyaev, Rico Schmidt, Dominic Brauch, Elena Tarakhovskaya, Svetlana Milrud, Galina Smolikova, Alain Tissier, Thomas Vogt, Andrea Sinz, Wolfgang Brandt, Claudia Birkemeyer, Ludger A Wessjohann, Andrej Frolov
Glycation is a post-translational modification resulting from the interaction of protein amino and guanidino groups with carbonyl compounds. Initially, amino groups react with reducing carbohydrates, yielding Amadori and Heyns compounds. Their further degradation results in formation of advanced glycation end products (AGEs), also originating from α-dicarbonyl products of monosaccharide autoxidation and primary metabolism. In mammals, AGEs are continuously formed during the life of the organism, and accumulate in tissues, being well-known markers of ageing, impacting age-related tissue stiffing and atherosclerotic changes...
June 13, 2017: Journal of Biological Chemistry
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