Patent ID: 7687609

Claim:
An isolated complex consisting of a galectin-3 multimer and a chondroitin oligosaccharide chain having any one of the structures represented by the following formula (6) to (12): GlcA β1-3 (GalNAc β1-4 GlcA β1-3) 2 GalNAc (6) (GalNAc β1-4 GlcA β1-3) 3 GalNAc (7) GlcA β1-3 (GalNAc β1-4 GlcA β1-3) 3 GalNAc (8) (GalNAc β1-4 GlcA β1-3) 4 GalNAc (9) GlcA β1-3 (GalNAc β1-4 GlcA β1-3) 4 GalNAc (10) (GalNAc β1-4 GlcA β1-3) 5 GalNAc (11) GlcA β1-3 (GalNAc β1-4 GlcA β1-3) 5 GalNAc (12) wherein GlcNAc represents an N-acetylglucosamine residue, GalNAc represents an N-acetylgalactosamine residue, GlcA represents a glucuronic acid residue, β1-4 represents a β1-4 glycosidic linkage, and β1-3 represents a β1-3 glycosidic linkage.