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Glycoprotein D

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https://www.readbyqxmd.com/read/28730856/in-vitro-drug-drug-interactions-of-budesonide-inhibition-and-induction-of-transporters-and-cytochrome-p450-enzymes
#1
Nancy Chen, Donghui Cui, Qing Wang, Zhiming Wen, Richard D Finkelman, Devin Welty
1. Budesonide is a glucocorticoid used in the treatment of several respiratory and gastrointestinal inflammatory diseases. Glucocorticoids have been demonstrated to induce cytochrome P450 (CYP) 3A and the efflux transporter P-glycoprotein (P-gp). This study aimed to evaluate the potential of budesonide to act as a perpetrator or a victim of transporter- or CYP-mediated drug-drug interactions (DDIs). 2. In vitro studies were conducted for P-gp, breast cancer resistance protein and organic anion and cation transporters (OATP1B1, OATP1B3, OAT1, OAT3, OCT2) in transporter-transfected cells...
July 21, 2017: Xenobiotica; the Fate of Foreign Compounds in Biological Systems
https://www.readbyqxmd.com/read/28726377/a-novel-targeted-mass-spectrometry-approach-enabled-discov-ery-of-o-glycosylated-insulin-and-related-signaling-peptides-in-mouse-and-human-pancreatic-islets
#2
Qing Yu, Alejandra Canales, Matthew S Glover, Rahul Das, Xudong Shi, Yang Liu, Mark P Keller, Alan D Attie, Lingjun Li
O-linked glycosylation often involves the covalent attachment of sugar moieties to the hydroxyl group of serine or threonine on proteins/peptides. Despite growing interest in glycoproteins, little attention has been directed to glycosylated signaling peptides, largely due to lack of enabling analytical tools. Here we explore the occurrence of naturally O-linked glycosylation on the signaling peptides extracted from mouse and human pancreatic islets using mass spectrometry (MS). A novel targeted MS-based method is developed to increase the likelihood of capturing these modified signaling peptides and to provide improved sequence coverage and accurate glycosite localization, enabling the first large-scale discovery of O-glycosylation on signaling peptides...
July 20, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/28721397/hivis-dna-or-hivisopt-dna-priming-followed-by-cmdr-vaccinia-based-boosts-induce-both-humoral-and-cellular-murine-immune-responses-to-hiv
#3
J Hinkula, S Petkov, K Ljungberg, D Hallengärd, A Bråve, M Isaguliants, T Falkeborn, S Sharma, V Liakina, M Robb, M Eller, B Moss, G Biberfeld, E Sandström, C Nilsson, K Markland, P Blomberg, B Wahren
BACKGROUND: In order to develop a more effective prophylactic HIV-1 vaccine it is important optimize the components, improve Envelope glycoprotein immunogenicity as well as to explore prime-boost immunization schedules. It is also valuable to include several HIV-1 subtype antigens representing the world-wide epidemic. METHODS: HIVIS-DNA plasmids which include Env genes of subtypes A, B and C together with Gag subtypes A and B and RTmut/Rev of subtype B were modified as follows: the Envelope sequences were shortened, codon optimized, provided with an FT4 sequence and an immunodominant region mutated...
June 2017: Heliyon
https://www.readbyqxmd.com/read/28720888/bivalent-dna-vaccine-induces-significant-immune-responses-against-infectious-hematopoietic-necrosis-virus-and-infectious-pancreatic-necrosis-virus-in-rainbow-trout
#4
Liming Xu, Jingzhuang Zhao, Miao Liu, Guangming Ren, Feng Jian, Jiasheng Yin, Ji Feng, Hongbai Liu, Tongyan Lu
Infectious hematopoietic necrosis virus (IHNV) and infectious pancreatic necrosis virus (IPNV) are important pathogens of salmon and trout. An active bivalent DNA vaccine was constructed with the glycoprotein gene of Chinese IHNV isolate Sn1203 and VP2-VP3 gene of Chinese IPNV isolate ChRtm213. Rainbow trout (5 g) were vaccinated by intramuscular injection with 1.0 µg of the bivalent DNA vaccine and then challenged with an intraperitoneal injection of IHNV, IPNV, or both, at 30 and 60 days post-vaccination (d...
July 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28714909/the-interplay-between-the-host-receptor-and-influenza-virus-hemagglutinin-and-neuraminidase
#5
REVIEW
Lauren Byrd-Leotis, Richard D Cummings, David A Steinhauer
The hemagglutinin (HA) and neuraminidase (NA) glycoproteins of influenza A virus are responsible for the surface interactions of the virion with the host. Entry of the virus is mediated by functions of the HA: binding to cellular receptors and facilitating fusion of the virion membrane with the endosomal membrane. The HA structure contains receptor binding sites in the globular membrane distal head domains of the trimer, and the fusion machinery resides in the stem region. These sites have specific characteristics associated with subtype and host, and the differences often define species barriers...
July 17, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28714801/muleshoe-virus-and-other-hantaviruses-associated-with-neotomine-or-sigmodontine-rodents-in-texas
#6
Mary Louise Milazzo, Maria N B Cajimat, Martin H Richter, Robert D Bradley, Charles F Fulhorst
The broad objective of this study was to increase our knowledge of Muleshoe virus and other hantaviruses associated with cricetid rodents in Texas. Anti-hantavirus antibody was found in 38 (3.2%) of 1171 neotomine rodents and 6 (1.8%) of 332 sigmodontine rodents from 10 Texas counties; hantaviral RNA was detected in 23 (71.9%) of 32 antibody-positive rodents. Analyses of nucleocapsid protein gene sequences indicated Muleshoe virus infection in four hispid cotton rats (Sigmodon hispidus) from northern Texas; Bayou virus, three Texas marsh oryzomys (Oryzomys texensis) from the Gulf Coast; Limestone Canyon virus, five brush mice (Peromyscus boylii) from western Texas; and Sin Nombre virus-five Texas mice (P...
July 17, 2017: Vector Borne and Zoonotic Diseases
https://www.readbyqxmd.com/read/28713858/life-stage-specific-cargo-receptors-facilitate-glycosylphosphatidylinositol-anchored-surface-coat-protein-transport-in-trypanosoma-brucei
#7
Emilia K Kruzel, George P Zimmett, James D Bangs
The critical virulence factor of bloodstream-form Trypanosoma brucei is the glycosylphosphatidylinositol (GPI)-anchored variant surface glycoprotein (VSG). Endoplasmic reticulum (ER) exit of VSG is GPI dependent and relies on a discrete subset of COPII machinery (TbSec23.2/TbSec24.1). In other systems, p24 transmembrane adaptor proteins selectively recruit GPI-anchored cargo into nascent COPII vesicles. Trypanosomes have eight putative p24s (TbERP1 to TbERP8) that are constitutively expressed at the mRNA level...
July 2017: MSphere
https://www.readbyqxmd.com/read/28711640/recent-advances-in-tpgs-based-nanoparticles-of-docetaxel-for-improved-chemotherapy
#8
REVIEW
Hira Choudhury, Bapi Gorain, Manisha Pandey, Santosh Ashok Kumbhar, Rakesh Kumar Tekade, Arun K Iyer, Prashant Kesharwani
Docetaxel (DTX) is one of the important antitumor drugs, being used in several common chemotherapies to control leading cancer types. Severe toxicities of the DTX are prominent due to sudden parenteral exposure of desired loading dose to maintain the therapeutic concentration. Field of nanotechnology is leading to resist sudden systemic exposure of DTX with more specific delivery to the site of cancer. Further nanometric size range of the formulation aid for prolonged circulation, thereby extensive exposure results better efficacy...
July 12, 2017: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/28707509/intestinal-absorption-of-pallidifloside-d-are-limited-by-p-glycoprotein-in-mice
#9
Ming-Yu Wang, Ming Yang, Pi-Yong Hou, Xiu-Bo Chen, Hong-Gang Li, Jiu-Xing Yan, Jun Zhang, Yan-Wen Zhang, Xiao-Hui Wu
1. Pallidifloside D, a saponin glycoside constituent from the total saponins of Smilax riparia, had been proved to be very effective in hyperuricemic control. But it is poorly bioavailable after oral administration. Here, we determined the role of P-glycoprotein (P-gp) in the intestinal absorption of Pallidifloside D. 2. We found that Pallidifloside D significantly stimulated P-gp ATPase activity in vitro ATPase assay with a small EC50 value of 0.46 µM. 3. In the single-pass perfused mouse intestine model, the absorption of Pallidifloside D was not favored in the small intestine (duodenum, jejunum and ileum) with a P*w value of 0...
July 14, 2017: Xenobiotica; the Fate of Foreign Compounds in Biological Systems
https://www.readbyqxmd.com/read/28704418/the-coll%C3%AE-gen-iii-fibril-has-a-flexi-rod-structure-of-flexible-sequences-interspersed-with-rigid-bioactive-domains-including-two-with-hemostatic-roles
#10
J Des Parkin, James D San Antonio, Anton V Persikov, Hayat Dagher, Raymond Dalgleish, Shane T Jensen, Xavier Jeunemaitre, Judy Savige
Collagen III is critical to the integrity of blood vessels and distensible organs, and in hemostasis. Examination of the human collagen III interactome reveals a nearly identical structural arrangement and charge distribution pattern as for collagen I, with cell interaction domains, fibrillogenesis and enzyme cleavage domains, several major ligand-binding regions, and intermolecular crosslink sites at the same sites. These similarities allow heterotypic fibril formation with, and substitution by, collagen I in embryonic development and wound healing...
2017: PloS One
https://www.readbyqxmd.com/read/28702798/the-differential-absorption-of-a-series-of-p-glycoprotein-substrates-in-isolated-perfused-lungs-from-mdr1a-1b-genetic-knockout-mice-can-be-attributed-to-distinct-physico-chemical-properties-an-insight-into-predicting-transporter-mediated-pulmonary-specific
#11
Daniel F Price, Chris N Luscombe, Peter J Eddershaw, Chris D Edwards, Mark Gumbleton
PURPOSE: To examine if pulmonary P-glycoprotein (P-gp) is functional in an intact lung; impeding the pulmonary absorption and increasing lung retention of P-gp substrates administered into the airways. Using calculated physico-chemical properties alone build a predictive Quantitative Structure-Activity Relationship (QSAR) model distinguishing whether a substrate's pulmonary absorption would be limited by P-gp or not. METHODS: A panel of 18 P-gp substrates were administered into the airways of an isolated perfused mouse lung (IPML) model derived from Mdr1a/Mdr1b knockout mice...
July 12, 2017: Pharmaceutical Research
https://www.readbyqxmd.com/read/28702782/immunohistochemical-localization-of-histidine-rich-glycoprotein-in-human-skeletal-muscle-preferential-distribution-of-the-protein-at-the-sarcomeric-i-band
#12
L Mattii, L Rossi, C Ippolito, G Alì, D Martini, A Raggi, Antonietta R M Sabbatini
Histidine-rich glycoprotein (HRG) is a relatively abundant plasma protein that is synthesized by parenchymal liver cells. Using Western blot analysis and immunoperoxidase techniques, we have previously shown the presence of HRG in human skeletal muscle. This paper reports the results of immunofluorescence experiments carried out on sections of human normal skeletal muscle biopsies to investigate the subcellular localization of HRG. The HRG localization was also compared with that of skeletal muscle AMP deaminase (AMPD1), since we have previously described an association of the enzyme with the protein...
July 12, 2017: Histochemistry and Cell Biology
https://www.readbyqxmd.com/read/28701697/peptidomics-of-an-in-vitro-digested-%C3%AE-gal-carrying-protein-revealed-ige-reactive-peptides
#13
D Apostolovic, M Krstic, J Mihailovic, M Starkhammar, T Cirkovic Velickovic, C Hamsten, M van Hage
The mammalian carbohydrate galactose-α1,3-galactose (α-Gal) causes a novel form of food allergy, red meat allergy, where patients experience severe allergic reactions several hours after red meat consumption. Here we explored gastric digestion of α-Gal glycoproteins using an in vitro model. Bovine thyroglobulin (BTG), a typical α-Gal carrying glycoprotein, was digested with pepsin. The resulting peptides were characterised by SDS PAGE, immunoblot and ImmunoCAP using sera from 20 red meat allergic patients...
July 12, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28701403/monoclonal-antibodies-derived-from-humans-vaccinated-with-the-rv144-hiv-vaccine-containing-the-hvem-binding-domain-of-herpes-simplex-virus-hsv-glycoprotein-d-neutralize-hsv-infection-mediate-adcc-and-protect-mice-from-ocular-challenge-with-hsv-1
#14
Kening Wang, Georgia D Tomaras, Sinthujan Jegaskanda, M Anthony Moody, Hua-Xin Liao, Kyle Goodman, Phillip W Berman, Supachai Rerks-Ngarm, Punnee Pitisuttithum, Sorachai Nitayapan, Jaranit Kaewkungwal, Barton F Haynes, Jeffrey I Cohen
The RV144 HIV vaccine trial included a recombinant HIV glycoprotein 120 (gp120) construct fused to a small portion of herpes simplex virus (HSV-1) glycoprotein D (gD), such that the first 40 amino acids of gp120 were replaced by the signal sequence and the first 27 amino acids of the mature form of gD. This region of gD contains most of the binding site for HVEM, an HSV receptor important for virus infection of epithelial cells and lymphocytes. RV144 induced antibodies to HIV that were partially protective against infection as well as antibodies to HSV...
July 12, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28700535/vitamin-d-status-is-associated-with-hepcidin-and-hemoglobin-concentrations-in-children-with-inflammatory-bowel-disease
#15
Sana Syed, Ellen S Michalski, Vin Tangpricha, Supavit Chesdachai, Archana Kumar, Jarod Prince, Thomas R Ziegler, Parminder S Suchdev, Subra Kugathasan
BACKGROUND: Anemia, iron deficiency, and hypovitaminosis D are well-known comorbidities in inflammatory bowel disease (IBD). Epidemiologic studies have linked vitamin D deficiency with increased risk of anemia, and in vitro studies suggest that vitamin D may improve iron recycling through downregulatory effects on hepcidin and proinflammatory cytokines. METHODS: We aimed to investigate the association of vitamin D status with inflammation, iron biomarkers, and anemia in pediatric IBD...
July 11, 2017: Inflammatory Bowel Diseases
https://www.readbyqxmd.com/read/28696795/decoy-receptor-3-down-regulates-centrosomal-protein-70%C3%A2-kda-specifically-in-rheumatoid-synovial-fibroblasts
#16
Koji Fukuda, Yasushi Miura, Toshihisa Maeda, Shinya Hayashi, Ryosuke Kuroda
OBJECTIVES: Decoy receptor 3 (DcR3) competitively binds to Fas ligand, lymphotoxin-related inducible ligand that competes for glycoprotein D binding to herpes virus entry mediator on T cells (LIGHT) and TNF-like ligand 1A (TL1A), thereby preventing their effects. Using a microarray assay, we previously newly identified centrosomal protein 70 kDa (CEP70) as one of the genes whose expression in fibroblast-like synoviocytes from patients with rheumatoid arthritis (RA-FLS) is reduced by DcR3...
July 11, 2017: Modern Rheumatology
https://www.readbyqxmd.com/read/28695569/in-vitro-evidence-for-the-participation-of-drosophila-melanogaster-sperm-%C3%AE-n-acetylglucosaminidases-in-the-interactions-with-glycans-carrying-terminal-n-acetylglucosamine-residues-on-the-egg-s-envelopes
#17
Jari Intra, Concetta Veltri, Daniela De Caro, Maria Elisa Perotti, Maria Enrica Pasini
Fertilization is a complex and multiphasic process, consisting of several steps, where egg-coating envelope's glycoproteins and sperm surface receptors play a critical role. Sperm-associated β-N-acetylglucosaminidases, also known as hexosaminidases, have been identified in a variety of organisms. Previously, two isoforms of hexosaminidases, named here DmHEXA and DmHEXB, were found as intrinsic proteins in the sperm plasma membrane of Drosophila melanogaster. In the present work, we carried out different approaches using solid-phase assays in order to analyze the oligosaccharide recognition ability of D...
July 10, 2017: Archives of Insect Biochemistry and Physiology
https://www.readbyqxmd.com/read/28693997/lectin-from-canavalia-villosa-seeds-a-glucose-mannose-specific-protein-and-a-new-tool-for-inflammation-studies
#18
Claudia F Lossio, Cleane G Moreira, Renata M F Amorim, Clareane S Nobre, Mayara T L Silva, Cornevile C Neto, Vanir R Pinto-Junior, Ivanice B Silva, Julia Campos, Ana Maria S Assreuy, Benildo S Cavada, Kyria S Nascimento
With important carbohydrate binding properties, lectins are proteins able to decipher the glycocode, and as such, they can be used in bioassays involving cell-cell communication, protein targeting, inflammation, and hypernociception, among others. In this study, a new glucose/mannose-specific lectin from Canavalia villosa seeds (Cvill) was isolated by a single affinity chromatography step in a Sephadex(®) G-50 column, with a purification yield of 19.35mg of lectin per gram of powdered seed. Analysis of intact protein by mass spectrometry showed the lectin is composed of three polypeptide chains, including a 25...
July 7, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28692651/effects-of-clinical-and-environmental-factors-on-bronchoalveolar-antibody-responses-to-pneumocystis-jirovecii-a-prospective-cohort-study-of-hiv-patients
#19
Robert J Blount, Kieran R Daly, Serena Fong, Emily Chang, Katherine Grieco, Meredith Greene, Stephen Stone, John Balmes, Robert F Miller, Peter D Walzer, Laurence Huang
BACKGROUND: Humoral immunity plays an important role against Pneumocystis jirovecii infection, yet clinical and environmental factors that impact bronchoalveolar antibody responses to P. jirovecii remain uncertain. METHODS: From October 2008-December 2011 we enrolled consecutive HIV-infected adults admitted to San Francisco General Hospital (SFGH) who underwent bronchoscopy for suspected Pneumocystis pneumonia (PCP). We used local air quality monitoring data to assign ozone, nitrogen dioxide, and fine particulate matter exposures within 14 days prior to hospital admission...
2017: PloS One
https://www.readbyqxmd.com/read/28692034/mir-200b-inhibits-proliferation-and-metastasis-of-breast-cancer-by-targeting-fucosyltransferase-iv-and-%C3%AE-1-3-fucosylated-glycans
#20
Q Zheng, X Cui, D Zhang, Y Yang, X Yan, M Liu, B Niang, F Aziz, S Liu, Q Yan, J Liu
Aberrant protein fucosylation is associated with cancer malignancy. Fucosyltransferase IV (FUT4) is the key enzyme catalyzing the biosynthesis of α1,3-linkage fucosylated glycans carried by glycoproteins on the cell surface, such as the tumor-associated sugar antigen Lewis Y (LeY). An abnormal increase in the levels of FUT4 and LeY is observed in many cancers and correlated with cell proliferation and metastasis. Some microRNAs (miRNAs) are known to negatively regulate gene expression. FUT4 is an oncogenic glycogene, and thus it is important to identify the specific miRNA targeting FUT4...
July 10, 2017: Oncogenesis
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