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ECB-ART-39014
Carbohydr Res 2004 May 17;3397:1339-46. doi: 10.1016/j.carres.2004.02.025.
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Isolation and partial characterization of fucan sulfates from the body wall of sea cucumber Stichopus japonicus and their ability to inhibit osteoclastogenesis.

Kariya Y , Mulloy B , Imai K , Tominaga A , Kaneko T , Asari A , Suzuki K , Masuda H , Kyogashima M , Ishii T .


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Two types of fucan sulfate were isolated from chloroform/methanol extract of the body wall of the sea cucumber Stichopus japonicus. One type (type A) contained 3.41 mmol fucose/g and 2.35 mmol sulfate/g, and the molecular mass was determined to be 9 kDa by gel permeation chromatography (GPC). Structural analysis suggested that type A consists of a backbone of (1-->3)-linked fucosyl residues that are substituted at C-4 with fucosyl residues, and that fucosyl residues are sulfated at C-2 and/or C-4. Another type (type B) contained 3.90 mmol fucose/g and 3.07 mmol sulfate/g, and the molecular mass was determined to be 32kDa by GPC. Structural analysis showed that type B is largely composed of unbranched (1-->3)-linked fucosyl residues, and that sulfate substitution(s) occur at C-2 and/or C-4. The potential of both types to inhibit osteoclastogenesis was examined by an in vitro assay system, showing that both types of fucan sulfate inhibit osteoclastogenesis more than 95% at 50 microg/mL concentration. These results suggest that types A and B fucan sulfate from sea cucumber are potent inhibitors of osteoclastogenesis.

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Genes referenced: LOC100887844