Strongyloides venezuelensis: binding of orally secreted adhesion substances to sulfated carbohydrates.
Adhesion substances produced by adult worms of Strongyloides venezuelensis bound strongly to hepin-Sepharose beads after incubation at 37 degrees C for 1 h. This binding was completely inhibited by highly sulfated carbohydrates such as soluble heparin, dextran surfate, fucoidan, and pentosan polysulfate. Chondroitin sulfate E and chondroitin sulfate A inhibited to a lesser degree and chondroitin sulfate C and dextran did not inhibit significantly. Carbohydrate moieties as well as the number and position of negatively charged sulfate groups of sulfated glycans were important determinants for the interaction between sulfated carbohydrates and adhesion substances. Adhesion substances of S. venezuelensis adult worms also bound to negatively charged rat red blood cells. The binding was significantly inhibited by heparin but not by mono- or disaccharides. Thus the intraction between red cells and adhesion substances was electrostatic in nature, but did not involve lectin-sugar interactions.
Maruyama
H
H
Department of Medical Zoology, Nagoya City University Medical School, Nagoya, Japan.
Nawa
Y
Y
Ohta
N
N
D000818:Animals; D050260:Carbohydrate Metabolism; D015815:Cell Adhesion Molecules / Q000378:metabolism*; D002809:Chondroitin Sulfates / Q000378:metabolism; D016264:Dextran Sulfate / Q000378:metabolism; D003911:Dextrans / Q000378:metabolism; D004912:Erythrocytes / Q000378:metabolism; D006493:Heparin / Q000378:metabolism; D008297:Male; D008863:Microspheres; D010426:Pentosan Sulfuric Polyester / Q000378:metabolism; D011134:Polysaccharides / Q000378:metabolism; D051381:Rats; D017208:Rats, Wistar; D013321:Strongyloides / Q000378:metabolism*
D015815:Cell Adhesion Molecules; D003911:Dextrans; D011134:Polysaccharides; D010426:Pentosan Sulfuric Polyester; D006493:Heparin; D002809:Chondroitin Sulfates; D016264:Dextran Sulfate; C007789:fucoidan