J Korean Med Sci.  1994 Apr;9(2):179-187. 10.3346/jkms.1994.9.2.179.

The biologic role of ganglioside in neuronal differentiation: effects of GM1 ganglioside on human neuroblastoma SH-SY5Y cells

  • 1Department of Pathology, Chonnam National University Medical School, Kwangju, Korea.


Human neuroblastoma SH-SY5Y cell is a cloned cell line which has many attractive features for the study of neuronal proliferation and neurite outgrowth, because it has receptors for insulin, IGF-I and PDGF. Gangliosides are sialic acid containing glycosphingolipids which form an integral part of the plasma membrane of many mammalian cells. They inhibit cell growth mediated by tyrosine kinase receptors and ligand-stimulated tyrosine kinase activity, and autophosphorylation of EGF(epidermal growth factor) and PDGF receptors. The experiment was designed to study the effects of GM1 ganglioside on growth of human neuroblastoma SH-SY5Y cells stimulated with trophic factor in vitro. The cells were plated in Eagle's minimum essential medium without serum. The number and morphologic change of SH-SY5Y cells were evaluated in the serum free medium added GM1 ganglioside with insulin or PDGF. SH-SY5Y cells were maintained for six days in serum-free medium, and then cultured for over two weeks in serum-free medium containing either insulin or PDGF. The effect of insulin on cell proliferation developed earlier and was more potent than that of PDGF. These proliferative effects were inhibited by GM1 ganglioside, and the cells showed prominent neurites outgrowth. These findings suggest that GM1 ganglioside inhibits the cell proliferation mediated by tyrosine kinase receptors and directly induces neuritogenesis as one of the neurotrophic factors.

MeSH Terms

Cell Differentiation/drug effects
Cell Division/drug effects
G(M1) Ganglioside/*pharmacology
Neurons/cytology/*drug effects
Platelet-Derived Growth Factor/pharmacology
Receptor Protein-Tyrosine Kinases/drug effects
Tumor Cells, Cultured
Platelet-Derived Growth Factor
G(M1) Ganglioside
Receptor Protein-Tyrosine Kinases

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