Expression of the neural cell adhesion molecule and polysialic acid in human neuroblastoma cell lines
نویسندگان
چکیده
منابع مشابه
Polysialic acid on the neural cell adhesion molecule correlates with expression of polysialyltransferases and promotes neuroblastoma cell growth.
Neuroblastomas and cell lines derived from these tumors bear the oncodevelopmental antigen polysialic acid (PSA) bound to the neural cell adhesion molecule. Polysialyation of neural cell adhesion molecule can be achieved by two different polysialyltransferases, ST8SiaII and ST8SiaIV. This study was undertaken to investigate the pattern of polysialyltransferases expressed in the human neuroblast...
متن کاملExpression and localization of neural cell adhesion molecule and polysialic acid during chick corneal development.
PURPOSE To assay for expression and localization of neural cell adhesion molecule (NCAM) and polysialic acid (polySia) in the chick cornea during embryonic and postnatal development. METHODS Real time quantitative PCR and Western blot analyses were used to determine NCAM expression and polysiaylation in embryonic, hatchling, and adult chick corneas. Immunofluorescence staining for NCAM and po...
متن کاملExpression of neural cell adhesion molecule (NCAM) isoforms in neuroblastoma.
A comparative study on the expression of the neural cell adhesion molecule (NCAM) in human neuroblastoma cell lines and tissues was undertaken. NCAMs are a family of closely related cell surface glycoproteins involved in cell-cell interactions. Using antibodies that recognise distinct epitopes on NCAM, their presence was shown in neuroblastoma, but these studies do not yield any information on ...
متن کاملPolysialic acid directs tumor cell growth by controlling heterophilic neural cell adhesion molecule interactions.
Polysialic acid (PSA), a carbohydrate polymer attached to the neural cell adhesion molecule (NCAM), promotes neural plasticity and tumor malignancy, but its mode of action is controversial. Here we establish that PSA controls tumor cell growth and differentiation by interfering with NCAM signaling at cell-cell contacts. Interactions between cells with different PSA and NCAM expression profiles ...
متن کاملPolysialic acid/neural cell adhesion molecule modulates the formation of ductular reactions in liver injury.
UNLABELLED In severe liver injury, ductular reactions (DRs) containing bipotential hepatic progenitor cells (HPCs) branch from the portal tract. Neural cell adhesion molecule (NCAM) marks bile ducts and DRs, but not mature hepatocytes. NCAM mediates interactions between cells and surrounding matrix; however, its role in liver development and regeneration is undefined. Polysialic acid (polySia),...
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ژورنال
عنوان ژورنال: International Journal of Oncology
سال: 2011
ISSN: 1019-6439,1791-2423
DOI: 10.3892/ijo.2011.1038