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Effects of GM1 and 2-Deoxy-2,3-dehydro-N-acetylneuraminic acid (NeuAc2en) on neuroblastoma (Neuro 2a) and human glioma cells (U1242 MG) by Hany El Sayed; Javier D. Agudelo; Dennis K. Pearl; Allan J. Yates is a Medicine article available to read on EtoBox.

What is Effects of GM1 and 2-Deoxy-2,3-dehydro-N-acetylneuraminic acid (NeuAc2en) on neuroblastoma (Neuro 2a) and human glioma cells (U1242 MG) about?

Several lines of evidence suggest that gangliosides may play a role in the regulation of growth in many cell types. Here we describe the effects on growth of two different cell lines by the addition of two different chemicals which have been reported to elevate the cellular ganglioside content through different mechanisms. Growth of neuroblastoma (Neuro 2a) cells in medium containing fetal bovine serum was inhibited in a dose-dependent fashion by both exogenous GM1 ganglioside and NeuAc2en, an inhibitor of sialidase activity. In contrast, growth of glioma cells (U-1242 MG) was not affected by exogenous GM1 or NeuAc2en in the presence of as little as 1% calf serum. However, NeuAc2en inhibited growth of U-1242 MG cells stimulated by platelet-derived growth factor in serum-free medium. These results demonstrate that the growth inhibitory effects of ganglioside on U-1242 MG but not Neuro 2a cells can be counteracted by serum, suggesting that the mechanisms through which gangliosides affect cell growth may be different for different growth factors and cell types.

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Author

Hany El Sayed; Javier D. Agudelo; Dennis K. Pearl; Allan J. Yates

Publisher

Springer US; Springer-Verlag; Kluwer Academic Publishers; Springer Science and Business Media LLC; Society for Mining, Metallurgy and Exploration Inc. (ISSN 0167-594X)

Published

1991

Language

EN

Field

Medicine (Health Sciences)