ECB-ART-39121
Chem Pharm Bull (Tokyo)
2004 Aug 01;528:1002-4. doi: 10.1248/cpb.52.1002.
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Isolation and structure of a GD3-Type ganglioside molecular species possessing neuritogenic activity from the starfish Luidia maculata.
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A GD3-type ganglioside molecular species, LMG-4 (1), has been obtained from the polar lipid fraction of the chloroform/methanol extract of the starfish Luidia maculata. The structure of this ganglioside has been determined on the basis of chemical and spectroscopic evidence to be 1-O-[(N-acetyl-alpha-D-neuraminosyl)-(2-->8)-(N-acetyl-alpha-D-neuraminosyl)-(2-->3)-beta-D-galactopyranosyl-(1-->4)-beta-D-glucopyranosyl]-ceramide. The ceramide moiety was composed of heterogeneous 2-hydroxy fatty acid and phytosphingosine units. This is the first report on the isolation and structure elucidation of GD3-type ganglioside from echinoderms. Moreover, 1 exhibited neuritogenic activity toward the rat pheochromocytoma PC12 cells in the presence of nerve growth factor.
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