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Fucosylation

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https://www.readbyqxmd.com/read/28630087/paucimannose-rich-n-glycosylation-of-spatiotemporally-regulated-human-neutrophil-elastase-modulates-its-immune-functions
#1
Ian Loke, Ole Østergaard, Niels H H Heegaard, Nicolle H Packer, Morten Thaysen-Andersen
Human neutrophil elastase (HNE) is an important N-glycosylated serine protease in the innate immune system, but the structure and immune-modulating functions of HNE N-glycosylation remain undescribed. Herein, LC-MS/MS-based glycan, glycopeptide and glycoprotein profiling were utilised to first determine the heterogeneous N-glycosylation of HNE purified from neutrophil lysates and then from isolated neutrophil granules of healthy individuals. The spatiotemporal expression of HNE during neutrophil activation and the biological importance of its N-glycosylation were also investigated using immunoblotting, cell surface capture, native MS, receptor interaction, protease inhibition, and bacteria growth assays...
June 19, 2017: Molecular & Cellular Proteomics: MCP
https://www.readbyqxmd.com/read/28628327/impact-of-the-niemann-pick-c1-gene-mutation-on-the-total-cellular-glycomics-of-cho-cells
#2
Jun-Ichi Furukawa, Minami Soga, Kazue Okada, Ikuko Yokota, Jinhua Piao, Tetsumi Irie, Takumi Era, Yasuro Shinohara
Niemann-Pick disease type C (NPC) is an autosomal recessive lipid storage disorder, and the majority of cases are caused by mutations in the NPC1 gene. In this study, we clarified how a single gene mutation in the NPC1 gene impacts the cellular glycome by analyzing the total glycomic expression profile of Chinese hamster ovary cell mutants defective in the Npc1 gene (Npc1 KO CHO cells). A number of glycomic alterations were identified, including increased expression of lactosylceramide, GM1, GM2, GD1, various neolacto-series glycosphingolipids, and sialyl-T (O-glycan), which was found to be the major sialylated protein-bound glycan, as well as various N-glycans, which were commonly both fucosylated and sialylated...
June 19, 2017: Journal of Proteome Research
https://www.readbyqxmd.com/read/28627880/site-specific-fucosylation-analysis-identifies-glycoproteins-associated-with-aggressive-prostate-cancer-cell-lines-using-tandem-affinity-enrichments-of-intact-glycopeptides-followed-by-mass-spectrometry
#3
Jianliang Zhou, Weiming Yang, Yingwei Hu, Naseruddin Hoti, Yang Liu, Punit Shah, Shisheng Sun, David J Clark, Stefani N Thomas, Hui Zhang
Fucosylation (Fuc) of glycoproteins plays an important role in regulating protein function and has been associated with the development of several cancer types including prostate cancer (Pca). Therefore, the research of Fuc glycoproteins has attracted increasing attention recently in analytical field. Herein, a strategy based on lectin affinity enrichments of intact glycopeptides followed by mass spectrometry has been established to evaluate the specificities of various Fuc-binding lectins for glycosite-specific Fuc analysis of non-aggressive (NAG) and aggressive (AG) Pca cell lines...
June 19, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/28621608/glycosylation-change-of-alpha-1-acid-glycoprotein-as-a-serum-biomarker-for-hepatocellular-carcinoma-and-cirrhosis
#4
Delin Zhang, Jianzhao Huang, Dan Luo, Xinfu Feng, Yan Liu, Yan Liu
AIM: This research is to explore the glycosylation change of alpha-1-acid glycoprotein (AGP) in hepatocellular carcinoma (HCC), cirrhosis and controls. METHODS: The affinity chromatography and lectin affinity techniques were used to separate and enrich glycosylated AGP, and combined with mass spectrometry to identify and relatively quantify the glycopeptides from AGP. RESULTS: The sialylation and fucosylation of AGP were different among HCC, cirrhosis and controls...
May 2017: Biomarkers in Medicine
https://www.readbyqxmd.com/read/28620442/efficacy-of-nanoceria-for-periodontal-tissues-alteration-in-glutamate-induced-obese-rats-multidisciplinary-considerations-for-personalized-dentistry-and-prevention
#5
Tetyana V Beregova, Karine S Neporada, Maksym Skrypnyk, Tetyana M Falalyeyeva, Nadiya M Zholobak, Oleksandr B Shcherbakov, Mykola Ya Spivak, Rostyslav V Bubnov
BACKGROUND: Nowadays, we face the global epidemic of obesity, that is known to contribute to the development of many diseases, such as the oral cavity pathologies. Dental and oral pathologies are frequently caused by and overlapped with systemic multifactorial diseases such as obesity being its early indicators and risk factors. The aim was to study the influence of nanoceria on periodontal tissues alteration in glutamate (MSG)-induced obese rats. METHODS: We included 52 Wistar rats of both genders and divided into four groups: newborn rats in group 1 (control) received subcutaneously 8 μl/g saline...
March 2017: EPMA Journal
https://www.readbyqxmd.com/read/28620376/the-n-glycosylation-of-mouse-immunoglobulin-g-igg-fragment-crystallizable-differs-between-igg-subclasses-and-strains
#6
Noortje de Haan, Karli R Reiding, Jasminka Krištić, Agnes L Hipgrave Ederveen, Gordan Lauc, Manfred Wuhrer
N-linked glycosylation of the fragment crystallizable (Fc)-region of immunoglobulin G (IgG) is known to have a large influence on the activity of the antibody, an effect reported to be IgG subclass specific. This situation applies both to humans and mice. The mouse is often used as experimental animal model to study the effects of Fc-glycosylation on IgG effector functions, and results are not uncommonly translated back to the human situation. However, while human IgG Fc-glycosylation has been extensively characterized in both health and disease, this is not the case for mice...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28611567/early-detection-of-hepatocellular-carcinoma-recurrence-using-the-highly-sensitive-fucosylated-fraction-of-alpha-fetoprotein
#7
Toru Setsu, Atsunori Tsuchiya, Takayuki Watanabe, Takuro Nagoya, Satoshi Ikarashi, Kazunao Hayashi, Junji Yokoyama, Satoshi Yamagiwa, Shuji Terai
Alpha-fetoprotein (AFP)-L3 was originally reported as a hepatocellular carcinoma (HCC)-specific tumor marker, and recent accumulation of evidence has revealed that AFP-L3 frequency predicts the biological malignancy potential of HCC. However, AFP-L3 elevation from undetectable levels after curative treatment could not be discussed due to the difficulties of calculating AFP-L3 concentrations when serum AFP levels were low. Here, as a novel method, we used highly sensitive AFP-L3 frequency to predict HCC recurrence after curative treatment...
January 2017: Case Reports in Gastroenterology
https://www.readbyqxmd.com/read/28609658/a-systems-biology-approach-identifies-fut8-as-a-driver-of-melanoma-metastasis
#8
Praveen Agrawal, Barbara Fontanals-Cirera, Elena Sokolova, Samson Jacob, Christopher A Vaiana, Diana Argibay, Veronica Davalos, Meagan McDermott, Shruti Nayak, Farbod Darvishian, Mireia Castillo, Beatrix Ueberheide, Iman Osman, David Fenyö, Lara K Mahal, Eva Hernando
Association of aberrant glycosylation with melanoma progression is based mainly on analyses of cell lines. Here we present a systems-based study of glycomic changes and corresponding enzymes associated with melanoma metastasis in patient samples. Upregulation of core fucosylation (FUT8) and downregulation of α-1,2 fucosylation (FUT1, FUT2) were identified as features of metastatic melanoma. Using both in vitro and in vivo studies, we demonstrate FUT8 is a driver of melanoma metastasis which, when silenced, suppresses invasion and tumor dissemination...
June 12, 2017: Cancer Cell
https://www.readbyqxmd.com/read/28609653/aberrant-glycosylation-in-cancer-a-novel-molecular-mechanism-controlling-metastasis
#9
Ana Magalhães, Henrique O Duarte, Celso A Reis
Glycosylation alterations are involved in several steps of human cancer pathogenesis. In this issue of Cancer Cell, Agrawal et al. identified the glycosyltransferase FUT8 as a previously unrecognized mediator of melanoma metastasis, establishing core fucosylation as a potential therapeutic target for prevention and treatment of metastatic tumors.
June 12, 2017: Cancer Cell
https://www.readbyqxmd.com/read/28605680/surrogate-cd16-expressing-effector-cell-lines-for-determining-the-bioactivity-of-therapeutic-monoclonal-antibodies
#10
Shalom A Gurjar, Jeremy P Derrick, Rebecca J Dearman, Robin Thorpe, Simon Hufton, Ian Kimber, Meenu Wadhwa
Traditional antibody dependent cellular cytotoxicity (ADCC) assays use donor derived natural killer (NK) or peripheral blood mononuclear cells, but donor genetic variability and the technically challenging nature of the assay means that alternative in vitro assay formats are required. We explored the utility of two reporter gene cell lines, the J2 and J9, as surrogate effector cells for ADCC assays. Both express the ADCC relevant Fcγ receptor CD16, crosslinking of which leads to firefly luciferase expression...
June 9, 2017: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/28600306/expression-of-lewis-a-glycans-on-polymorphonuclear-leukocytes-augments-function-by-increasing-transmigration
#11
Jennifer C Brazil, Ronen Sumagin, Sean R Stowell, Goo Lee, Nancy A Louis, Richard D Cummings, Charles A Parkos
PMN-expressed fucosylated glycans from the Lewis glycan family, including Lewis-x (Le(x)) and sialyl Lewis-x (sLe(x)), have previously been implicated in the regulation of important PMN functions, including selectin-mediated trafficking across vascular endothelium. Although glycans, such as Le(x) and sLe(x), which are based on the type 2 sequence (Galβ1-4GlcNAc-R), are abundant on PMNs, the presence of type 1 Galβ1-3GlcNAc-R glycans required for PMN expression of the closely related stereoisomer of Le(x), termed Lewis-A (Le(a)), has not, to our knowledge, been reported...
June 9, 2017: Journal of Leukocyte Biology
https://www.readbyqxmd.com/read/28594851/serum-n-glycome-characterization-and-anti-carbohydrate-antibody-profiling-in-oral-squamous-cell-carcinoma-patients
#12
Shih-Yun Guu, Tsung-Hsien Lin, Su-Chieh Chang, Rei-Jing Wang, Ling-Yi Hung, Po-Jan Fang, Wei-Chien Tang, Peiwen Yu, Chuan-Fa Chang
Glycosylation is a protein post translational modification which plays important role in protein function, stabilization, trafficking, and turnover. Alteration of protein glycosylation is a common phenomenon during tumor progression, migration, invasion, angiogenesis, as well as metastasis. Hence, aberrant glycan structures and the induced corresponding anti-carbohydrate antibodies are potential biomarkers for cancer diagnosis. In this study, serum N-glycomes and anti-carbohydrate antibodies from normal populations and oral squamous cell carcinoma (OSCC) patients were investigated...
2017: PloS One
https://www.readbyqxmd.com/read/28577915/histo-blood-group-carbohydrates-as-facilitators-for-infection-by-helicobacter-pylori
#13
REVIEW
Cinara Cássia Brandão de Mattos, Luiz Carlos de Mattos
Helicobacter pylori infect millions of people around the world. It occupies a niche in the human gastrointestinal tract characterized by high expression of a repertoire of carbohydrates. ABO and Lewis histo-blood group systems are controlled by genes coding for functional glycosyltransferases which synthesize great diversity of related fucosylated carbohydrate in different tissues, including gastrointestinal mucosa, and exocrine secretions. The structural diversity of histo-blood group carbohydrates is highly complex and depends on epistatic interactions among gene-encoding glycosyltransferases...
May 31, 2017: Infection, Genetics and Evolution
https://www.readbyqxmd.com/read/28566370/enhanced-effector-functions-due-to-antibody-defucosylation-depend-on-the-effector-cell-fc%C3%AE-receptor-profile
#14
Christine W Bruggeman, Gillian Dekkers, Arthur E H Bentlage, Louise W Treffers, Sietse Q Nagelkerke, Suzanne Lissenberg-Thunnissen, Carolien A M Koeleman, Manfred Wuhrer, Timo K van den Berg, Theo Rispens, Gestur Vidarsson, Taco W Kuijpers
Abs of the IgG isotype are glycosylated in their Fc domain at a conserved asparagine at position 297. Removal of the core fucose of this glycan greatly increases the affinity for FcγRIII, resulting in enhanced FcγRIII-mediated effector functions. Normal plasma IgG contains ∼94% fucosylated Abs, but alloantibodies against, for example, Rhesus D (RhD) and platelet Ags frequently have reduced fucosylation that enhances their pathogenicity. The increased FcγRIII-mediated effector functions have been put to use in various afucosylated therapeutic Abs in anticancer treatment...
May 31, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28561948/identification-of-fucosylated-fetuin-a-as-a-potential-biomarker-for-cholangiocarcinoma
#15
Lucy Betesh, Mary Ann Comunale, Mengjun Wang, Hongyan Liang, Julie Hafner, Aykan Karabudak, Nasra H Giama, Catherine D Moser, Eiji Miyoshi, Lewis R Roberts, Timothy M Block, Anand Mehta
CLINICAL RELEVANCE: Cholangiocarcinoma is a cancer of bile duct cells for which no effective biomarker exists. Tumor masses are often not identifiable by imaging modalities as a result of the location of the tumor in the hilum of the liver or within the bile ducts. Because of the problems with obtaining a definitive tissue diagnosis, treatment and management decisions for patients with biliary strictures that may be malignant are difficult. The work presented here highlights the potential role of fucosylated fetuin-A as a biomarker of cholangiocarcinoma and may help in the early detection of this deadly cancer...
May 31, 2017: Proteomics. Clinical Applications
https://www.readbyqxmd.com/read/28554622/comparison-of-anti-pathogenic-activities-of-the-human-and-bovine-milk-n-glycome-fucosylation-is-a-key-factor
#16
Wen-Li Wang, Wei Wang, Ya-Min Du, Hong Wu, Xiao-Bo Yu, Ke-Ping Ye, Chun-Bao Li, Yong-Sam Jung, Ying-Juan Qian, Josef Voglmeir, Li Liu
Health differences between breast- and formula-fed infants have long been apparent despite great efforts in improving the function of baby formula by adjusting the levels of various milk nutritional components. However, the N-glycome, a type of oligosaccharide decorating a diverse range of proteins, has not been extensively studied in milk regarding its biological function. In this study, the anti-pathogenic function of the enzymatically released human and bovine milk N-glycome against 5 food-borne pathogens was investigated...
November 15, 2017: Food Chemistry
https://www.readbyqxmd.com/read/28546799/lectin-array-and-glycogene-expression-analyses-of-ovarian-cancer-cell-line-a2780-and-its-cisplatin-resistant-derivate-cell-line-a2780-cp
#17
Ran Zhao, Wenjun Qin, Ruihuan Qin, Jing Han, Can Li, Yisheng Wang, Congjian Xu
BACKGROUND: Ovarian cancer is one of the most lethal gynecological malignancies, in which platinum resistance is a common cause of its relapse and death. Glycosylation has been reported to be involved in drug resistance, and glycomic analyses of ovarian cancer may improve our understanding of the mechanisms underlying cancer cell drug resistance and provide potential biomarkers and therapeutic targets. METHODS: The serous ovarian cancer cell line A2780 and its platinum-resistant counterpart A2780-cp were used in this study...
2017: Clinical Proteomics
https://www.readbyqxmd.com/read/28543513/lc-ms-ms-isomeric-profiling-of-permethylated-n-glycans-derived-from-serum-haptoglobin-of-hepatocellular-carcinoma-hcc-and-cirrhotic-patients
#18
Yifan Huang, Shiyue Zhou, Jianhui Zhu, David M Lubman, Yehia Mechref
Early stage detection and cancer treatment demand the identification of reliable biomarkers. Over the past decades, efforts have been devoted to assess the variation of glycosylation level as well as the glycan structures of proteins in blood or serum, associated with the development and/or progression of several cancers, including liver. Herein, an LC-MS/MS-based analysis was conducted to define the glycosylation patterns of haptoglobin glycoprotein derived from sera collected from cirrhotic and hepatocellular carcinoma (HCC) patients...
May 25, 2017: Electrophoresis
https://www.readbyqxmd.com/read/28533485/high-expression-of-fut3-is-linked-to-poor-prognosis-in-clear-cell-renal-cell-carcinoma
#19
Li Meng, Le Xu, Yuanfeng Yang, Lin Zhou, Yuan Chang, Tianming Shi, Cheng Tan, Huimin An, Yu Zhu, Jiejie Xu
BACKGROUND AND PURPOSE: Some of the fucosylation catalyzed by fucosyltransferase-III mediates the epithelial-mesenchymal transition and enhances tumor cell-macrophage signaling, which promotes malignant transforming and immune evasion. The aim of the study was to investigate the association between the expression of fucosyltransferase-III and clinical outcomes of patients with clear-cell renal cell carcinoma after surgery. RESULTS: High fucosyltransferase-III expression was associated with a greater risk of recurrence (p = 0...
May 9, 2017: Oncotarget
https://www.readbyqxmd.com/read/28530709/recognition-of-egf-like-domains-by-the-notch-modifying-o-fucosyltransferase-pofut1
#20
Zhijie Li, Kristina Han, John E Pak, Malathy Satkunarajah, Dongxia Zhou, James M Rini
Protein O-fucosyltransferase 1 (POFUT1) fucosylates the epidermal growth factor (EGF)-like domains found in cell-surface and secreted glycoproteins including Notch and its ligands. Although Notch fucosylation is critical for development, and POFUT1 deficiency leads to human disease, how this enzyme binds and catalyzes the fucosylation of its diverse EGF-like domain substrates has not been determined. Reported here is the X-ray crystal structure of mouse POFUT1 in complex with several EGF-like domains, including EGF12 and EGF26 of Notch...
July 2017: Nature Chemical Biology
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