“…Therefore, cyclodextrin derivatives bearing small saccharides may be useful as a carrier for transporting active drugs to sugar receptors such as lectins located on the cell surface. In accordance with this concept, several cyclodextrin conjugates with mono- and di-saccharides such as glucose, galactose, mannose, fucose, etc., have been prepared and investigated for binding characteristics to sugar-specific receptors. − The β-cyclodextrin conjugates with galactose showed higher recognition by the galactose specific K. Bulgaricus cell wall lectin (KbCWL); i.e., they inhibited flocculation of K. Bulgaricus cells induced by the isolated KbCWL lectin and their inhibition activity was higher than that of galactose, whereas the glucose derivatives showed no inhibition effect. α-Glucosylgluconoamide-β-cyclodextrin showed a high affinity (association constant 8730 M -1 ) for the glucose-binding protein concanavalin A, a representative of a large family of lectins .…”