alexa Asparagine-linked oligosaccharides in malignant tumour growth.
Bioinformatics & Systems Biology

Bioinformatics & Systems Biology

Journal of Proteomics & Bioinformatics

Author(s): Dennis JW, Lafert S, Vanderelst I

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Abstract The expression of beta 1-6-branched complex-type oligosaccharides in several tumour cell models appears to be associated with enhanced metastatic potential. P2B, a major PHA-L-binding glycoprotein was isolated from metastatic MDAY-D2 cells and shown to bind to collagen, fibronectin and laminin with increased affinity after removal of N-linked sialic acid or polylactosamine. Sialylated polylactosamine-containing beta 1-6-branched oligosaccharides on proteins such as P2B and fibronectin may reduce cell adhesion and enhance tumour cell invasion. The loss of branched complex-type oligosaccharides in tumour cells due to somatic mutations or inhibition by swainsonine is also associated with decreased cell proliferation in tissue culture and slower rates of solid tumour growth in mice.
This article was published in Biochem Soc Trans and referenced in Journal of Proteomics & Bioinformatics

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