Results 21 to 30 of about 11,605 (209)

Glia-neuron coupling via a bipartite sialylation pathway promotes neural transmission and stress tolerance in Drosophila

open access: yeseLife, 2023
Modification by sialylated glycans can affect protein functions, underlying mechanisms that control animal development and physiology. Sialylation relies on a dedicated pathway involving evolutionarily conserved enzymes, including CMP-sialic acid ...
Hilary Scott   +13 more
doaj   +1 more source

Capsular Sialyltransferase Specificity Mediates Different Phenotypes in Streptococcus suis and Group B Streptococcus

open access: yesFrontiers in Microbiology, 2018
The capsular polysaccharide (CPS) represents a key virulence factor for most encapsulated streptococci. Streptococcus suis and Group B Streptococcus (GBS) are both well-encapsulated pathogens of clinical importance in veterinary and/or human medicine and
David Roy   +9 more
doaj   +1 more source

Systemic ST6Gal-1 Is a Pro-survival Factor for Murine Transitional B Cells

open access: yesFrontiers in Immunology, 2018
Humoral immunity depends on intrinsic B cell developmental programs guided by systemic signals that convey physiologic needs. Aberrant cues or their improper interpretation can lead to immune insufficiency or a failure of tolerance and autoimmunity.
Eric E. Irons, Joseph T. Y. Lau
doaj   +1 more source

Free and bound forms of sialic acid in blood plasma of patients with chronic lymphocytic leukemia

open access: yesRegulatory Mechanisms in Biosystems, 2015
The level of free and bound forms of sialic acids (SА) was investigated in chronic lymphocytic leukemia (CLL) and at different stages of receiving chemotherapy.
O. V. Netronina
doaj   +1 more source

Sialidase and Sialyltransferase Inhibitors: Targeting Pathogenicity and Disease

open access: yesFrontiers in Molecular Biosciences, 2021
Sialidases (SAs) and sialyltransferases (STs), the enzymes responsible for removing and adding sialic acid to other glycans, play essential roles in viruses, bacteria, parasites, and humans.
William H. D. Bowles, Tracey M. Gloster
doaj   +1 more source

Sialyltransferases functions in cancers

open access: yesFrontiers in Bioscience, 2012
Abnormally elevated levels of sialylated tumor associated carbohydrate antigens are frequently described at the surface of cancer cells and/or secreted in biological fluids. It is now well established that this over-expression may result from deregulation in sialyltransferases enzymatic activity involved in their biosynthesis, but the precise molecular
Harduin-Lepers, Anne   +5 more
openaire   +3 more sources

Multifaceted role of sialylation in prion diseases

open access: yesFrontiers in Neuroscience, 2016
Mammalian prion or PrPSc is a proteinaceous infectious agent that consists of a misfolded, self-replicating state of a sialoglycoprotein called the prion protein or PrPC. Sialylation of the prion protein N-linked glycans was discovered more than 30 years
Ilia V Baskakov   +3 more
doaj   +1 more source

Blood-Borne ST6GAL1 Regulates Immunoglobulin Production in B Cells

open access: yesFrontiers in Immunology, 2020
Humoral immunity is an effective but metabolically expensive defense mechanism. It is unclear whether systemic cues exist to communicate the dynamic need for antigen presentation and immunoglobulin production.
Eric E. Irons   +2 more
doaj   +1 more source

Compound heterozygous variants within two conserved sialyltransferase motifs of ST3GAL5 cause GM3 synthase deficiency

open access: yesJIMD Reports, 2023
GM3 synthase deficiency (GM3SD) is caused by biallelic variants in ST3GAL5. The ganglioside GM3, enriched in neuronal tissues, is a component of lipid rafts and regulates numerous signaling pathways.
Natasha Rudy   +7 more
doaj   +1 more source

Evaluation of oral cancer associated glycosyltransferase expression levels in peripheral blood mononucleated cells

open access: yesAdvances in Cancer Biology - Metastasis, 2021
Aberrant glycosylation, particularly sialylation is considered a significant characteristic of malignancy. Aberrant sialylation has been connected with several neoplastic disorders. The role of abnormal sialylation in oral cancer blood, on the other hand,
Mallikarjun Goni   +5 more
doaj   +1 more source

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