Abstract
Lectins can be used to specifically detect some cell surface glycans. Their expression on different cells or on cells of a given lineage throughout differentiation or following treatment with drugs can be compared using lectins labelled with radioactive, fluorescent or enzymatic probes. We describe a new method which, by analogy with CELISA (ELISA on cells), is called CELLBA (or ELLBA on cells) for cellular, enzyme-linked lectin-binding assay. It permits the comparison of the expression of specific glycans in a large number of different cell samples. As an example, it was able to detect alterations of cell surface glycan expression caused by inhibitors of N-linked oligosaccharide trimming.
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