An in vitro method of imaging a cancer antigen includes providing a cell sample including a cancer antigen selected from the group consisting of a Tn antigen, a T antigen, a sialylated-Tn antigen, and a sialylated-T antigen, treating the sample with a glycosyltransferase to incorporate a carbohydrate with a click chemistry moiety into the cancer antigen, adding a label to the sample that includes a click chemistry moiety that reacts to the click chemistry moiety of the carbohydrate such that the label attaches to the carbohydrate to form a labeled cancer antigen, and imaging the sample with a camera.

A method for assaying endoglycosidase activity includes providing a proteoglycan having a glycosaminoglycan chain with a non-reducing end; treating the proteoglycan with a glycosyltransferase to incorporate a carbohydrate into the non-reducing end of the glycosaminoglycan chain, wherein the carbohydrate includes a click chemistry moiety; adding a label to the proteoglycan, wherein the label includes a click chemistry moiety that reacts to the click chemistry moiety of the carbohydrate such that the label attaches to the carbohydrate to form a labeled proteoglycan; immobilizing the labeled proteoglycan on a multi-well plate, wherein the multi-well plate includes a specific anti-proteoglycan antibody for binding the labeled proteoglycan; treating the labeled proteoglycan with an endoglycosidase specific to the glycosaminoglycan chain; and detecting the labeled proteoglycan.

A method of analyzing biological data is disclosed. The method comprises obtaining biological data containing at least an expression level of MX dynamin-like GTPase 1 (MX1) and an expression level of C-reactive protein (CRP) in the blood of a subject, calculating a distance between a segment of a curved line and an axis defined by a direction, the distance being calculated at a point over the curved line defined by a coordinate along the direction, and correlating the distance to the presence of, absence of, or likelihood that the subject has, a bacterial infection.

Disclosed herein are glyco-decoy acceptor compositions that sidetrack or inhibit the activity of biosynthetic enzymes participating in synthesis of ligands binding at selectin, galectin and siglecs receptors; methods of their preparation and uses in drug discovery and in treatments of diseases.

The present invention relates to biomarkers, methods and assay kits for predicting prognosis and/or monitoring progression of prostate cancer. The biomarkers include a glycosyltransferases [core 1 beta-3-galactosyltransferase (C1GALT1) and/or ST3 beta-galactoside alpha-2,3-sialyltransferase 1 (ST3GAL1)] gene product, its saccharide substrate/product, and/or a galectin-4 gene product.

The invention relates to a combination of biomarkers and their use in brain injury or mild traumatic brain injury (mTBI) detection. The invention also relates to methods of treating the individual diagnosed with a traumatic brain injury (TBI) or a mild traumatic brain injury (mTBI) using such biomarkers.

The present disclosure provides, inter alia, compositions and methods for detecting changes in level of expression of cell-surface Type 2 terminal lactosamines on a population of cultured cells propagated under different conditions. The disclosure also provides compositions and methods for enforcing stably expressed glycans on human cells. In certain embodiments, the compositions and/or methods utilize one or more members of the (1,3)-fucosyltransferase family. In certain embodiments, glycoengineered CD44 glycosylated product (e.g. HCELL) is stable for at least 48 hours at 4 C., with retained expression after cell cryopreservation.