keyword
MENU ▼
Read by QxMD icon Read
search

Fucosylation

keyword
https://www.readbyqxmd.com/read/28916755/protein-o-fucosylation-in-plasmodium-falciparum-ensures-efficient-infection-of-mosquito-and-vertebrate-hosts
#1
Sash Lopaticki, Annie S P Yang, Alan John, Nichollas E Scott, James P Lingford, Matthew T O'Neill, Sara M Erickson, Nicole C McKenzie, Charlie Jennison, Lachlan W Whitehead, Donna N Douglas, Norman M Kneteman, Ethan D Goddard-Borger, Justin A Boddey
O-glycosylation of the Plasmodium sporozoite surface proteins CSP and TRAP was recently identified, but the role of this modification in the parasite life cycle and its relevance to vaccine design remain unclear. Here, we identify the Plasmodium protein O-fucosyltransferase (POFUT2) responsible for O-glycosylating CSP and TRAP. Genetic disruption of POFUT2 in Plasmodium falciparum results in ookinetes that are attenuated for colonizing the mosquito midgut, an essential step in malaria transmission. Some POFUT2-deficient parasites mature into salivary gland sporozoites although they are impaired for gliding motility, cell traversal, hepatocyte invasion, and production of exoerythrocytic forms in humanized chimeric liver mice...
September 15, 2017: Nature Communications
https://www.readbyqxmd.com/read/28914881/microrna-200c-impairs-uterine-receptivity-formation-by-targeting-fut4-and-%C3%AE-1-3-fucosylation
#2
Qin Zheng, Dandan Zhang, Y U Yang, Xinyuan Cui, Jiaqi Sun, Caixia Liang, Huamin Qin, Xuesong Yang, Shuai Liu, Qiu Yan
Successful embryo implantation requires the establishment of a receptive endometrium. Poor endometrial receptivity has generally been considered as a major cause of infertility. Protein glycosylation is associated with many physiological and pathological processes. The fucosylation is catalyzed by the specific fucosyltransferases. Fucosyltransferase IV (FUT4) is the key enzyme for the biosynthesis of α1,3-fucosylated glycans carried by glycoproteins, and the previous studies showed FUT4 expression changed dynamically during perimplantation...
September 15, 2017: Cell Death and Differentiation
https://www.readbyqxmd.com/read/28912543/inhibition-of-fucosylation-by-2-fluorofucose-suppresses-human-liver-cancer-hepg2-cell-proliferation-and-migration-as-well-as-tumor-formation
#3
Ying Zhou, Tomohiko Fukuda, Qinglei Hang, Sicong Hou, Tomoya Isaji, Akihiko Kameyama, Jianguo Gu
Core fucosylation is one of the most important glycosylation events in the progression of liver cancer. For this study, we used an easily handled L-fucose analog, 2-fluoro-L-fucose (2FF), which interferes with the normal synthesis of GDP-fucose, and verified its potential roles in regulating core fucosylation and cell behavior in the HepG2 liver cancer cell line. Results obtained from lectin blot and flow cytometry analysis clearly showed that 2FF treatment dramatically inhibited core fucosylation, which was also confirmed via mass spectrometry analysis...
September 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28910607/molecular-cloning-and-functional-expression-of-lewis-type-%C3%AE-1-3-%C3%AE-1-4-fucosyltransferase-cdnas-from-mangifera-indica-l
#4
Takahiro Okada, Hideyuki Ihara, Ritsu Ito, Yoshitaka Ikeda
In higher plants, complex type N-glycans contain characteristic carbohydrate moieties that are not found in mammals. In particular, the attachment of the lewis a (Le(a)) epitope is currently the only known outer chain elongation that is present in plant N-glycans. Such a modification is of great interest in terms of the biological function of complex type N-glycans in plant species. However, little is known regarding the exact molecular basis underlying their Le(a) expression. In the present study, we cloned two novel lewis type fucosyltransferases (MiFUT13) from mango fruit, Mangifera indica L...
September 11, 2017: Phytochemistry
https://www.readbyqxmd.com/read/28906588/surface-glycan-pattern-of-canine-equine-and-ovine-bone-marrow-derived-mesenchymal-stem-cells
#5
Salvatore Desantis, Gianluca Accogli, Antonio Crovace, Edda G Francioso, Alberto Maria Crovace
The use of bone marrow-derived mesenchymal stem cells (MSCs) for clinical and experimental studies is increasing, but full characterization of MSCs in veterinary species is hindered by the variability in species-specific cell surface marker expression and antibody cross reactivity. Recent studies demonstrated that the glycans in the glycocalyx of MSCs are promising candidates as cell biomarkers. In the present study, we analyzed the glycocalyx of canine MSCs (cMSCs), ovine MSCs (oMSCs), and equine MSCs (eMSCs) using a cell microarray procedure in which MSCs were spotted on microarray slides and incubated with a panel of 14 biotinylated lectins and Cy3-conjugated streptavidin...
September 14, 2017: Cytometry. Part A: the Journal of the International Society for Analytical Cytology
https://www.readbyqxmd.com/read/28906131/effects-of-immunomodulators-on-the-response-induced-by-vaccines-against-autoimmune-diseases
#6
Dante J Marciani
A promising treatment for T-cell-mediated autoimmune diseases is the induction of immune tolerance by modulating the immune response against self-antigens, an objective that may be achieved by vaccination. There are two main types of vaccines currently under development. The tolerogenic vaccines, composed of proteins formed by a cytokine fused to a self-antigen, which usually induce tolerance by eliminating the T-cells that are immune reactive against the self-antigen. The immunogenic vaccines, comprised of a self-antigen plus a sole Th2 adjuvant either free or conjugated, that alleviate autoimmunity by switching the immune response against the self-antigen, from a damaging pro-inflammatory Th1/Th17 to an anti-inflammatory Th2 immunity...
September 14, 2017: Autoimmunity
https://www.readbyqxmd.com/read/28905280/enzymatic-synthesis-of-fucose-containing-galacto-oligosaccharides-using-%C3%AE-galactosidase-and-identification-of-novel-disaccharide-structures
#7
Anne Usvalampi, Hannu Maaheimo, Olli Tossavainen, Alexander D Frey
Fucosylated oligosaccharides have an important role in maintaining a healthy immune system and homeostatic gut microflora. This study employed a commercial β-galactosidase in the production of fucose-containing galacto-oligosaccharides (fGOS) from lactose and fucose. The production was optimized using experiment design and optimal conditions for a batch production in 3-liter scale. The reaction product was analyzed and the produced galactose-fucose disaccharides were purified. The structures of these disaccharides were determined using NMR and it was verified that one major product with the structure Galβ1-3Fuc and two minor products with the structures Galβ1-4Fuc and Galβ1-2Fuc were formed...
September 13, 2017: Glycoconjugate Journal
https://www.readbyqxmd.com/read/28895795/glycan-characterization-of-the-nist-rm-monoclonal-antibody-using-a-total-analytical-solution-from-sample-preparation-to-data-analysis
#8
Mark Hilliard, William R Alley, Ciara A McManus, Ying Qing Yu, Sinead Hallinan, John Gebler, Pauline M Rudd
Glycosylation is an important attribute of biopharmaceutical products to monitor from development through production. However, glycosylation analysis has traditionally been a time-consuming process with long sample preparation protocols and manual interpretation of the data. To address the challenges associated with glycan analysis, we developed a streamlined analytical solution that covers the entire process from sample preparation to data analysis. In this communication, we describe the complete analytical solution that begins with a simplified and fast N-linked glycan sample preparation protocol that can be completed in less than 1 hr...
September 12, 2017: MAbs
https://www.readbyqxmd.com/read/28894916/structural-and-functional-diversity-of-collectins-and-ficolins-and-their-relationship-to-disease
#9
REVIEW
Mark Howard, Conrad A Farrar, Steven H Sacks
Pattern recognition molecules are sensors for the innate immune system and trigger a number of pathophysiological functions after interaction with the corresponding ligands on microorganisms or altered mammalian cells. Of those pattern recognition molecules used by the complement system, collagen-like lectins (collectins) are an important subcomponent. Whereas the best known of these collectins, mannose-binding lectin, largely occurs as a circulating protein following production by hepatocytes, the most recently described collectins exhibit strong local biosynthesis...
September 11, 2017: Seminars in Immunopathology
https://www.readbyqxmd.com/read/28888681/nano-reversed-phase-versus-nano-hydrophilic-interaction-liquid-chromatography-on-a-chip-in-the-analysis-of-hemopexin-glycopeptides
#10
Petr Kozlik, Miloslav Sanda, Radoslav Goldman
Analysis of the glycosylation of proteins is a challenge that requires orthogonal methods to achieve separation of the diverse glycoforms. A combination of reversed phase chromatography with tandem mass spectrometry (RP-LC-MS/MS) is one of the most powerful tools for glycopeptide analysis. In this work, we developed and compared RP-LC and hydrophilic interaction liquid chromatography (HILIC) in nanoscale on a chip combined with MS/MS in order to separate glycoforms of two peptides obtained from the tryptic digest of hemopexin...
August 26, 2017: Journal of Chromatography. A
https://www.readbyqxmd.com/read/28875950/blocking-posttranslational-core-fucosylation-ameliorates-rat-peritoneal-mesothelial-cell-epithelial-mesenchymal-transition
#11
Long-Kai Li, Nan Wang, Wei-Dong Wang, Xiang-Ning Du, Xin-Yu Wen, Ling-Yu Wang, Yi-Yao Deng, Da-Peng Wang, Hong-Li Lin
Background: Core fucosylation (CF), catalyzed by α-1,6 fucosyltransferase (Fut8) in mammals, plays an important role in pathological processes through posttranslational modification of key signaling receptor proteins, including transforming growth factor (TGF)-β receptors and platelet-derived growth factor (PDGF) receptors. However, its effect on peritoneal fibrosis is unknown. Here, we investigated its influence on epithelial-mesenchymal transition (EMT) of rat peritoneal mesothelial cells (PMCs) in vitro induced by a high-glucose (HG) culture solution...
September 20, 2017: Chinese Medical Journal
https://www.readbyqxmd.com/read/28867807/synthesis-of-glycosides-by-glycosynthases
#12
REVIEW
Marc R Hayes, Jörg Pietruszka
The many advances in glycoscience have more and more brought to light the crucial role of glycosides and glycoconjugates in biological processes. Their major influence on the functionality and stability of peptides, cell recognition, health and immunity and many other processes throughout biology has increased the demand for simple synthetic methods allowing the defined syntheses of target glycosides. Additional interest in glycoside synthesis has arisen with the prospect of producing sustainable materials from these abundant polymers...
August 30, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28862393/microheterogeneity-of-recombinant-antibodies-analytics-and-functional-impact
#13
REVIEW
Beyer Beate, Schuster Manfred, Jungbauer Alois, Lingg Nico
Antibodies are typical examples of biopharmaceuticals which are composed of numerous, almost infinite numbers of potential molecular entities called variants or isoforms which constitutes the microheterogeneity of these molecules. These variants are generated during biosynthesis by so-called posttranslational modification, during purification or upon storage. The variants differ in biological properties such as pharmacodynamic properties, e.g. Antibody Dependent Cellular Cytotoxicity (ADCC), complement activation, pharmacokinetic properties, e...
September 1, 2017: Biotechnology Journal
https://www.readbyqxmd.com/read/28860805/fucosyltransferase-vii-promotes-proliferation-via-the-egfr-akt-mtor-pathway-in-a549-cells
#14
Jin-Xiao Liang, Wei Gao, Lei Cai
Fucosyltransferase VII (FUT7) is one of a1,3-fucosyltransferases family that catalyzes the final fucosylation step in the synthesis of Lewis antigens and generates a unique glycosylated product sialyl Lewis X (sLe(X)). sLe(X) can serve as ligands for E- or P-selectin expressed on the cell surface and results in cancer metastasis and angiogenesis. However, the molecular biological mechanisms of FUT7 elevation in neoplastic cells are still largely unknown. In this study, we examined the impact of FUT7 on cell proliferation and migration in A549 cells by colony formation assay, cell cycle assay, gelatin zymography, wound-healing assay, transwell invasion assay and Western blot...
2017: OncoTargets and Therapy
https://www.readbyqxmd.com/read/28860626/topological-n-glycosylation-and-site-specific-n-glycan-sulfation-of-influenza-proteins-in-the-highly-expressed-h1n1-candidate-vaccines
#15
Yi-Min She, Aaron Farnsworth, Xuguang Li, Terry D Cyr
The outbreak of a pandemic influenza H1N1 in 2009 required the rapid generation of high-yielding vaccines against the A/California/7/2009 virus, which were achieved by either addition or deletion of a glycosylation site in the influenza proteins hemagglutinin and neuraminidase. In this report, we have systematically evaluated the glycan composition, structural distribution and topology of glycosylation for two high-yield candidate reassortant vaccines (NIBRG-121xp and NYMC-X181A) by combining various enzymatic digestions with high performance liquid chromatography and multiple-stage mass spectrometry...
August 31, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28846656/the-sea-as-a-rich-source-of-structurally-unique-glycosaminoglycans-and-mimetics
#16
REVIEW
Ariana A Vasconcelos, Vitor H Pomin
Glycosaminoglycans (GAGs) are sulfated glycans capable of regulating various biological and medical functions. Heparin, heparan sulfate, chondroitin sulfate, dermatan sulfate, keratan sulfate and hyaluronan are the principal classes of GAGs found in animals. Although GAGs are all composed of disaccharide repeating building blocks, the sulfation patterns and the composing alternating monosaccharides vary among classes. Interestingly, GAGs from marine organisms can present structures clearly distinct from terrestrial animals even considering the same class of GAG...
August 28, 2017: Microorganisms
https://www.readbyqxmd.com/read/28844388/cation-exchange-assisted-binding-elution-strategy-for-enzymatic-synthesis-of-human-milk-oligosaccharides-hmos
#17
Hailiang Zhu, Zhigang Wu, Madhusudhan Reddy Gadi, Shuaishuai Wang, Yuxi Guo, Garrett Edmunds, Wanyi Guan, Junqiang Fang
A cation exchange assisted binding-elution (BE) strategy for enzymatic synthesis of human milk oligosaccharides (HMOs) was developed. An amino linker was used to provide the cation ion under acidic condition which can be readily bound to cation exchange resin and then eluted off by saturated ammonium bicarbonate. Ammonium bicarbonate in the collections was easily removed by vacuum evaporation. This strategy circumvented the incompatible issue between glycosyltransferases and solid support or large polymers, and no purification was needed for intermediate products...
September 15, 2017: Bioorganic & Medicinal Chemistry Letters
https://www.readbyqxmd.com/read/28843076/epididymal-%C3%AE-l-fucosidase-and-its-possible-role-in-remodelling-the-surface-of-bull-spermatozoa
#18
Andrea Carolina Aguilera, Veronica Boschin, Inmaculada Robina, Pilar Elías-Rodríguez, Miguel Angel Sosa
The mammalian epididymis provides an appropriate environment for sperm maturation. During the epididymal transit, spermatozoa undergo biochemical and morphological changes that lead to the acquisition of the fertilizing capacity. In this study we analysed the fucosylation status of membrane glycoproteins in the spermatozoa obtained from different regions of the bull epididymis. High amounts of fucose were detected on caput spermatozoa (R.F.I. = 1010 ± 20.35), mostly located in the post-acrosome zone. A significant decrease in the fucose levels was detected toward the cauda (R...
August 19, 2017: Theriogenology
https://www.readbyqxmd.com/read/28821129/characterization-and-anticoagulant-activity-of-a-fucosylated-chondroitin-sulfate-with-unusually-procoagulant-effect-from-sea-cucumber
#19
Mohamed Ben Mansour, Rafik Balti, Véronique Ollivier, Hichem Ben Jannet, Frédéric Chaubet, Raoui Mounir Maaroufi
The fucosylated chondroitin sulfate (FuCS) was isolated from the sea cucumber Holothuria polii body wall and then purified by anion exchange chromatography and the structure was characterized by FT-IR and NMR spectroscopy. Anticoagulant activity was measured in plasma by classical anticoagulation tests and the thrombin generation was assessed by calibrated automated thrombography. The results showed that the FuCS obtained at a yield of 4.66% possesses high sulfate content 43% and an average molecular mass of 45...
October 15, 2017: Carbohydrate Polymers
https://www.readbyqxmd.com/read/28811589/patients-with-igg1-anti-red-blood-cell-autoantibodies-show-aberrant-fc-glycosylation
#20
Myrthe E Sonneveld, Masja de Haas, Carolien Koeleman, Noortje de Haan, Sacha S Zeerleder, Peter C Ligthart, Manfred Wuhrer, C Ellen van der Schoot, Gestur Vidarsson
Autoimmune hemolytic anemia (AIHA) is a potentially severe disease in which red blood cells (RBC) are destroyed by IgG anti-RBC autoantibodies which can lead to hemolysis. We recently found IgG Fc-glycosylation towards platelet and RBC alloantigens to be skewed towards decreased fucosylation, increased galactosylation and sialylation. The lowered core-fucosylation increases the affinity of the pathogenic alloantibodies to FcγRIIIa/b, and hence RBC destruction. It is known that in autoimmune diseases plasma IgG1 galactosylation and sialylation are lowered, but Fc-glycosylation of RBC-specific autoantibodies has never been thoroughly analyzed...
August 15, 2017: Scientific Reports
keyword
keyword
72106
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"